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{
"language": "Solidity",
"sources": {
"lib/ReentrancyGuard.sol": {
"content": "// SPDX-License-Identifier: AGPL-3.0-only\npragma solidity >=0.8.0;\n\n/// @notice Gas optimized reentrancy protection for smart contracts.\n/// @author Solmate (https://github.com/Rari-Capital/solmate/blob/main/src/utils/ReentrancyGuard.sol)\n/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/security/ReentrancyGuard.sol)\nabstract contract ReentrancyGuard {\n uint256 private locked = 1;\n\n modifier nonReentrant() {\n require(locked == 1, \"REENTRANCY\");\n\n locked = 2;\n\n _;\n\n locked = 1;\n }\n}\n"
},
"lib/SafeTransferLib.sol": {
"content": "// SPDX-License-Identifier: AGPL-3.0-only\npragma solidity >=0.8.0;\n\n/// @notice Safe ETH and ERC20 transfer library that gracefully handles missing return values.\n/// @author Solmate (https://github.com/Rari-Capital/solmate/blob/main/src/utils/SafeTransferLib.sol)\n/// @author Modified from Gnosis (https://github.com/gnosis/gp-v2-contracts/blob/main/src/contracts/libraries/GPv2SafeERC20.sol)\n/// @dev Use with caution! Some functions in this library knowingly create dirty bits at the destination of the free memory pointer.\nlibrary SafeTransferLib {\n /*///////////////////////////////////////////////////////////////\n ETH OPERATIONS\n //////////////////////////////////////////////////////////////*/\n\n function safeTransferETH(address to, uint256 amount) internal {\n bool callStatus;\n\n assembly {\n // Transfer the ETH and store if it succeeded or not.\n callStatus := call(gas(), to, amount, 0, 0, 0, 0)\n }\n\n require(callStatus, \"ETH_TRANSFER_FAILED\");\n }\n\n /*///////////////////////////////////////////////////////////////\n ERC20 OPERATIONS\n //////////////////////////////////////////////////////////////*/\n\n function safeTransferFrom(\n address token,\n address from,\n address to,\n uint256 amount\n ) internal {\n bool callStatus;\n\n assembly {\n // Get a pointer to some free memory.\n let freeMemoryPointer := mload(0x40)\n\n // Write the abi-encoded calldata to memory piece by piece:\n mstore(freeMemoryPointer, 0x23b872dd00000000000000000000000000000000000000000000000000000000) // Begin with the function selector.\n mstore(add(freeMemoryPointer, 4), and(from, 0xffffffffffffffffffffffffffffffffffffffff)) // Mask and append the \"from\" argument.\n mstore(add(freeMemoryPointer, 36), and(to, 0xffffffffffffffffffffffffffffffffffffffff)) // Mask and append the \"to\" argument.\n mstore(add(freeMemoryPointer, 68), amount) // Finally append the \"amount\" argument. No mask as it's a full 32 byte value.\n\n // Call the token and store if it succeeded or not.\n // We use 100 because the calldata length is 4 + 32 * 3.\n callStatus := call(gas(), token, 0, freeMemoryPointer, 100, 0, 0)\n }\n\n require(didLastOptionalReturnCallSucceed(callStatus), \"TRANSFER_FROM_FAILED\");\n }\n\n function safeTransfer(\n address token,\n address to,\n uint256 amount\n ) internal {\n bool callStatus;\n\n assembly {\n // Get a pointer to some free memory.\n let freeMemoryPointer := mload(0x40)\n\n // Write the abi-encoded calldata to memory piece by piece:\n mstore(freeMemoryPointer, 0xa9059cbb00000000000000000000000000000000000000000000000000000000) // Begin with the function selector.\n mstore(add(freeMemoryPointer, 4), and(to, 0xffffffffffffffffffffffffffffffffffffffff)) // Mask and append the \"to\" argument.\n mstore(add(freeMemoryPointer, 36), amount) // Finally append the \"amount\" argument. No mask as it's a full 32 byte value.\n\n // Call the token and store if it succeeded or not.\n // We use 68 because the calldata length is 4 + 32 * 2.\n callStatus := call(gas(), token, 0, freeMemoryPointer, 68, 0, 0)\n }\n\n require(didLastOptionalReturnCallSucceed(callStatus), \"TRANSFER_FAILED\");\n }\n\n function safeApprove(\n address token,\n address to,\n uint256 amount\n ) internal {\n bool callStatus;\n\n assembly {\n // Get a pointer to some free memory.\n let freeMemoryPointer := mload(0x40)\n\n // Write the abi-encoded calldata to memory piece by piece:\n mstore(freeMemoryPointer, 0x095ea7b300000000000000000000000000000000000000000000000000000000) // Begin with the function selector.\n mstore(add(freeMemoryPointer, 4), and(to, 0xffffffffffffffffffffffffffffffffffffffff)) // Mask and append the \"to\" argument.\n mstore(add(freeMemoryPointer, 36), amount) // Finally append the \"amount\" argument. No mask as it's a full 32 byte value.\n\n // Call the token and store if it succeeded or not.\n // We use 68 because the calldata length is 4 + 32 * 2.\n callStatus := call(gas(), token, 0, freeMemoryPointer, 68, 0, 0)\n }\n\n require(didLastOptionalReturnCallSucceed(callStatus), \"APPROVE_FAILED\");\n }\n\n /*///////////////////////////////////////////////////////////////\n INTERNAL HELPER LOGIC\n //////////////////////////////////////////////////////////////*/\n\n function didLastOptionalReturnCallSucceed(bool callStatus) private pure returns (bool success) {\n assembly {\n // Get how many bytes the call returned.\n let returnDataSize := returndatasize()\n\n // If the call reverted:\n if iszero(callStatus) {\n // Copy the revert message into memory.\n returndatacopy(0, 0, returnDataSize)\n\n // Revert with the same message.\n revert(0, returnDataSize)\n }\n\n switch returnDataSize\n case 32 {\n // Copy the return data into memory.\n returndatacopy(0, 0, returnDataSize)\n\n // Set success to whether it returned true.\n success := iszero(iszero(mload(0)))\n }\n case 0 {\n // There was no return data.\n success := 1\n }\n default {\n // It returned some malformed input.\n success := 0\n }\n }\n }\n}\n"
},
"src/Owners.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.10;\n\nabstract contract Owners {\n event OwnerSet(address indexed owner, bool active);\n\n mapping(address => bool) public owners;\n\n modifier isOwner() {\n require(owners[msg.sender], \"Unauthorized\");\n _;\n }\n\n function _setOwner(address owner, bool active) internal virtual {\n owners[owner] = active;\n emit OwnerSet(owner, active);\n }\n\n function setOwner(address owner, bool active) external virtual isOwner {\n _setOwner(owner, active);\n }\n}\n"
},
"src/TSAggregator.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.10;\n\nimport { SafeTransferLib } from \"../lib/SafeTransferLib.sol\";\nimport { ReentrancyGuard } from \"../lib/ReentrancyGuard.sol\";\nimport { Owners } from \"./Owners.sol\";\nimport { TSAggregatorTokenTransferProxy } from './TSAggregatorTokenTransferProxy.sol';\n\nabstract contract TSAggregator is Owners, ReentrancyGuard {\n using SafeTransferLib for address;\n\n event FeeSet(uint256 fee, address feeRecipient);\n\n uint256 public fee;\n address public feeRecipient;\n TSAggregatorTokenTransferProxy public tokenTransferProxy;\n\n constructor(address _tokenTransferProxy) {\n _setOwner(msg.sender, true);\n tokenTransferProxy = TSAggregatorTokenTransferProxy(_tokenTransferProxy);\n }\n\n // Needed for the swap router to be able to send back ETH\n receive() external payable {}\n\n function setFee(uint256 _fee, address _feeRecipient) external isOwner {\n require(_fee <= 1000, \"fee can not be more than 10%\");\n fee = _fee;\n feeRecipient = _feeRecipient;\n emit FeeSet(_fee, _feeRecipient);\n }\n\n function skimFee(uint256 amount) internal returns (uint256) {\n uint256 amountFee = getFee(amount);\n if (amountFee > 0) {\n feeRecipient.safeTransferETH(amountFee);\n amount -= amountFee;\n }\n return amount;\n }\n\n function getFee(uint256 amount) internal view returns (uint256) {\n if (fee != 0 && feeRecipient != address(0)) {\n return (amount * fee) / 10000;\n }\n return 0;\n }\n\n // Parse amountOutMin treating the last 2 digits as an exponent\n // So 15e4 = 150000. This allows for compressed memos on chains\n // with limited space like Bitcoin\n function _parseAmountOutMin(uint256 amount) internal pure returns (uint256) {\n return amount / 100 * (10 ** (amount % 100));\n }\n}\n"
},
"src/TSAggregatorGeneric.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.10;\n\nimport { SafeTransferLib } from \"../lib/SafeTransferLib.sol\";\nimport { TSAggregator } from \"./TSAggregator.sol\";\nimport { IERC20 } from \"./interfaces/IERC20.sol\";\nimport { IThorchainRouter } from \"./interfaces/IThorchainRouter.sol\";\nimport { TSAggregatorTokenTransferProxy } from './TSAggregatorTokenTransferProxy.sol';\n\ncontract TSAggregatorGeneric is TSAggregator {\n using SafeTransferLib for address;\n\n event SwapIn(address from, address token, uint256 amount, uint256 out, uint256 fee, address vault, string memo);\n\n constructor(address _ttp) TSAggregator(_ttp) {\n }\n\n // Use 1inch's swap API endpoint to get data to send\n // e.g. https://api.1inch.io/v4.0/1/swap?toTokenAddress=0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE&fromTokenAddress=0x111111111117dc0aa78b770fa6a738034120c302&amount=10000000000000000&fromAddress=0x2f8aedd149afbdb5206ecaf8b1a3abb9186c8053&slippage=1&disableEstimate=true\n // toTokenAddress needs to be 0xeeee so ETH is sent back to swapIn\n // fromAddress needs to be the address of this contract\n // disableEstimate makes the API return a result even if there's no token balance in the contract\n function swapIn(\n address router,\n address vault,\n string calldata memo,\n address token,\n uint amount,\n address swapRouter,\n bytes calldata data,\n uint deadline\n ) public nonReentrant {\n require(swapRouter != address(tokenTransferProxy), \"no calling ttp\");\n tokenTransferProxy.transferTokens(token, msg.sender, address(this), amount);\n token.safeApprove(address(swapRouter), 0); // USDT quirk\n token.safeApprove(address(swapRouter), amount);\n\n {\n (bool success,) = swapRouter.call(data);\n require(success, \"failed to swap\");\n }\n\n uint256 out = address(this).balance;\n {\n uint256 outMinusFee = skimFee(out);\n IThorchainRouter(router).depositWithExpiry{value: outMinusFee}(\n payable(vault),\n address(0),\n outMinusFee,\n memo,\n deadline\n );\n }\n emit SwapIn(msg.sender, token, amount, out+getFee(out), getFee(out), vault, memo);\n }\n}\n"
},
"src/TSAggregatorTokenTransferProxy.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.10;\n\nimport { SafeTransferLib } from \"../lib/SafeTransferLib.sol\";\nimport { Owners } from \"./Owners.sol\";\n\ncontract TSAggregatorTokenTransferProxy is Owners {\n using SafeTransferLib for address;\n\n constructor() {\n _setOwner(msg.sender, true);\n }\n\n function transferTokens(address token, address from, address to, uint256 amount) external isOwner {\n require(from == tx.origin || _isContract(from), \"Invalid from address\");\n token.safeTransferFrom(from, to, amount);\n }\n\n function _isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n uint256 size;\n // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n}\n"
},
"src/interfaces/IERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.10;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n function balanceOf(address account) external view returns (uint256);\n function transfer(address recipient, uint256 amount) external returns (bool);\n function allowance(address owner, address spender) external view returns (uint256);\n function approve(address spender, uint256 amount) external returns (bool);\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n}\n"
},
"src/interfaces/IThorchainRouter.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.10;\n\ninterface IThorchainRouter {\n function depositWithExpiry(\n address payable vault,\n address asset,\n uint amount,\n string memory memo,\n uint expiration\n ) external payable;\n}\n"
}
},
"settings": {
"remappings": [
"hardhat/=node_modules/hardhat/"
],
"optimizer": {
"enabled": true,
"runs": 200
},
"metadata": {
"bytecodeHash": "ipfs"
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"evmVersion": "london",
"libraries": {}
}
} |