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Latest 25 from a total of 26,699 transactions
Transaction Hash MethodBlockFromToSwap And Execute 20634839 2024-08-29 14:29:23 2 days ago 1724941763 IN 0.00910453 ETH$22.62 0.00141327 5.09554456 Swap And Execute 20632764 2024-08-29 7:31:35 3 days ago 1724916695 IN 0.02292145 ETH$56.94 0.00063896 2.41247406 Swap And Execute 20628941 2024-08-28 18:41:11 3 days ago 1724870471 IN 0.030015 ETH$74.57 0.00062297 2.21804578 Swap And Execute 20628209 2024-08-28 16:13:47 3 days ago 1724861627 IN 0.00500247 ETH$12.43 0.00080384 3 Swap And Execute 20624642 2024-08-28 4:16:11 4 days ago 1724818571 IN 0.0050075 ETH$12.44 0.0002491 0.9406957 Swap And Execute 20619996 2024-08-27 12:43:23 4 days ago 1724762603 IN 0 ETH$0.00 0.00044485 1.46862965 Swap And Execute 20618262 2024-08-27 6:55:35 5 days ago 1724741735 IN 0.01501488 ETH$37.30 0.00026481 1 Swap And Execute 20613765 2024-08-26 15:49:11 5 days ago 1724687351 IN 0.27543763 ETH$684.26 0.00104837 3.69539346 Swap And Execute 20613608 2024-08-26 15:17:47 5 days ago 1724685467 IN 0.00499912 ETH$12.42 0.00120259 3.90090417 Swap And Execute 20520721 2024-08-13 15:52:59 18 days ago 1723564379 IN 0.02002272 ETH$49.74 0.00154814 5.19523808 Swap And Execute 20463262 2024-08-05 15:28:23 26 days ago 1722871703 IN 0.1916307 ETH$476.06 0.00814091 27.56380714 Swap And Execute 20453646 2024-08-04 7:18:35 28 days ago 1722755915 IN 0 ETH$0.00 0.00039441 0.98963374 Swap And Execute 20409843 2024-07-29 4:31:23 34 days ago 1722227483 IN 0.015 ETH$37.26 0.00027384 1.25017096 Swap And Execute 20397744 2024-07-27 12:00:11 35 days ago 1722081611 IN 0.1968 ETH$488.91 0.00030865 2 Swap And Execute 20397741 2024-07-27 11:59:35 35 days ago 1722081575 IN 0 ETH$0.00 0.00060407 2.07860001 Swap And Execute 20397738 2024-07-27 11:58:59 35 days ago 1722081539 IN 0.0984 ETH$244.45 0.00033826 1.8150935 Swap And Execute 20397738 2024-07-27 11:58:59 35 days ago 1722081539 IN 0.05904 ETH$146.67 0.00033822 2 Swap And Execute 20397736 2024-07-27 11:58:35 35 days ago 1722081515 IN 0.08 ETH$198.74 0.00033832 2 Swap And Execute 20397733 2024-07-27 11:57:59 35 days ago 1722081479 IN 0.05904 ETH$146.67 0.00021823 1.29049463 Swap And Execute 20397733 2024-07-27 11:57:59 35 days ago 1722081479 IN 0.08 ETH$198.74 0.00033832 2 Swap And Execute 20397731 2024-07-27 11:57:35 35 days ago 1722081455 IN 0.01968 ETH$48.89 0.00026075 1.39954759 Swap And Execute 20397731 2024-07-27 11:57:35 35 days ago 1722081455 IN 0.05904 ETH$146.67 0.00037263 2 Swap And Execute 20397730 2024-07-27 11:57:23 35 days ago 1722081443 IN 0.1476 ETH$366.68 0.00031671 1.69974122 Swap And Execute 20397730 2024-07-27 11:57:23 35 days ago 1722081443 IN 0.24 ETH$596.23 0.00033832 2 Swap And Execute 20397730 2024-07-27 11:57:23 35 days ago 1722081443 IN 0 ETH$0.00 0.0004 2 Advanced mode: Intended for advanced users or developers and will display all Internal Transactions including zero value transfers. Name tag integration is not available in advanced view.Latest 25 internal transactions (View All)
Advanced mode:Parent Transaction Hash Block From To 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654237 2024-09-01 7:29:59 25 mins ago 1725175799 0 ETH$0.00 20654229 2024-09-01 7:28:23 27 mins ago 1725175703 0.21307569 ETH$529.34 20654229 2024-09-01 7:28:23 27 mins ago 1725175703 0 ETH$0.00 20654229 2024-09-01 7:28:23 27 mins ago 1725175703 0.21307569 ETH$529.34 20654229 2024-09-01 7:28:23 27 mins ago 1725175703 0 ETH$0.00 20654229 2024-09-01 7:28:23 27 mins ago 1725175703 0 ETH$0.00 20654229 2024-09-01 7:28:23 27 mins ago 1725175703 0 ETH$0.00 Loading...LoadingContract Name:Executor
Compiler Versionv0.8.17+commit.8df45f5f
Optimization Enabled:Yes with 1000000 runs
Other Settings:default evmVersionContract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity 0.8.17; import { ReentrancyGuard } from "../Helpers/ReentrancyGuard.sol"; import { LibSwap } from "../Libraries/LibSwap.sol"; import { LibAsset } from "../Libraries/LibAsset.sol"; import { UnAuthorized } from "lifi/Errors/GenericErrors.sol"; import { ILiFi } from "../Interfaces/ILiFi.sol"; import { IERC20Proxy } from "../Interfaces/IERC20Proxy.sol"; import { ERC1155Holder } from "@openzeppelin/contracts/token/ERC1155/utils/ERC1155Holder.sol"; import { ERC721Holder } from "@openzeppelin/contracts/token/ERC721/utils/ERC721Holder.sol"; import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; /// @title Executor /// @author LI.FI (https://li.fi) /// @notice Arbitrary execution contract used for cross-chain swaps and message passing /// @custom:version 2.0.0 contract Executor is ILiFi, ReentrancyGuard, ERC1155Holder, ERC721Holder { /// Storage /// /// @notice The address of the ERC20Proxy contract IERC20Proxy public erc20Proxy; /// Events /// event ERC20ProxySet(address indexed proxy); /// Modifiers /// /// @dev Sends any leftover balances back to the user modifier noLeftovers( LibSwap.SwapData[] calldata _swaps, address payable _leftoverReceiver ) { uint256 numSwaps = _swaps.length; if (numSwaps != 1) { uint256[] memory initialBalances = _fetchBalances(_swaps); address finalAsset = _swaps[numSwaps - 1].receivingAssetId; uint256 curBalance = 0; _; for (uint256 i = 0; i < numSwaps - 1; ) { address curAsset = _swaps[i].receivingAssetId; // Handle multi-to-one swaps if (curAsset != finalAsset) { curBalance = LibAsset.getOwnBalance(curAsset); if (curBalance > initialBalances[i]) { LibAsset.transferAsset( curAsset, _leftoverReceiver, curBalance - initialBalances[i] ); } } unchecked { ++i; } } } else { _; } } /// Constructor /// @notice Initialize local variables for the Executor /// @param _erc20Proxy The address of the ERC20Proxy contract constructor(address _erc20Proxy) { erc20Proxy = IERC20Proxy(_erc20Proxy); emit ERC20ProxySet(_erc20Proxy); } /// External Methods /// /// @notice Performs a swap before completing a cross-chain transaction /// @param _transactionId the transaction id for the swap /// @param _swapData array of data needed for swaps /// @param _transferredAssetId token received from the other chain /// @param _receiver address that will receive tokens in the end function swapAndCompleteBridgeTokens( bytes32 _transactionId, LibSwap.SwapData[] calldata _swapData, address _transferredAssetId, address payable _receiver ) external payable nonReentrant { _processSwaps( _transactionId, _swapData, _transferredAssetId, _receiver, 0, true ); } /// @notice Performs a series of swaps or arbitrary executions /// @param _transactionId the transaction id for the swap /// @param _swapData array of data needed for swaps /// @param _transferredAssetId token received from the other chain /// @param _receiver address that will receive tokens in the end /// @param _amount amount of token for swaps or arbitrary executions function swapAndExecute( bytes32 _transactionId, LibSwap.SwapData[] calldata _swapData, address _transferredAssetId, address payable _receiver, uint256 _amount ) external payable nonReentrant { _processSwaps( _transactionId, _swapData, _transferredAssetId, _receiver, _amount, false ); } /// Private Methods /// /// @notice Performs a series of swaps or arbitrary executions /// @param _transactionId the transaction id for the swap /// @param _swapData array of data needed for swaps /// @param _transferredAssetId token received from the other chain /// @param _receiver address that will receive tokens in the end /// @param _amount amount of token for swaps or arbitrary executions /// @param _depositAllowance If deposit approved amount of token function _processSwaps( bytes32 _transactionId, LibSwap.SwapData[] calldata _swapData, address _transferredAssetId, address payable _receiver, uint256 _amount, bool _depositAllowance ) private { uint256 startingBalance; uint256 finalAssetStartingBalance; address finalAssetId = _swapData[_swapData.length - 1] .receivingAssetId; if (!LibAsset.isNativeAsset(finalAssetId)) { finalAssetStartingBalance = LibAsset.getOwnBalance(finalAssetId); } else { finalAssetStartingBalance = LibAsset.getOwnBalance(finalAssetId) - msg.value; } if (!LibAsset.isNativeAsset(_transferredAssetId)) { startingBalance = LibAsset.getOwnBalance(_transferredAssetId); if (_depositAllowance) { uint256 allowance = IERC20(_transferredAssetId).allowance( msg.sender, address(this) ); LibAsset.depositAsset(_transferredAssetId, allowance); } else { erc20Proxy.transferFrom( _transferredAssetId, msg.sender, address(this), _amount ); } } else { startingBalance = LibAsset.getOwnBalance(_transferredAssetId) - msg.value; } _executeSwaps(_transactionId, _swapData, _receiver); uint256 postSwapBalance = LibAsset.getOwnBalance(_transferredAssetId); if (postSwapBalance > startingBalance) { LibAsset.transferAsset( _transferredAssetId, _receiver, postSwapBalance - startingBalance ); } uint256 finalAssetPostSwapBalance = LibAsset.getOwnBalance( finalAssetId ); if (finalAssetPostSwapBalance > finalAssetStartingBalance) { LibAsset.transferAsset( finalAssetId, _receiver, finalAssetPostSwapBalance - finalAssetStartingBalance ); } emit LiFiTransferCompleted( _transactionId, _transferredAssetId, _receiver, finalAssetPostSwapBalance, block.timestamp ); } /// @dev Executes swaps one after the other /// @param _transactionId the transaction id for the swap /// @param _swapData Array of data used to execute swaps /// @param _leftoverReceiver Address to receive lefover tokens function _executeSwaps( bytes32 _transactionId, LibSwap.SwapData[] calldata _swapData, address payable _leftoverReceiver ) private noLeftovers(_swapData, _leftoverReceiver) { uint256 numSwaps = _swapData.length; for (uint256 i = 0; i < numSwaps; ) { if (_swapData[i].callTo == address(erc20Proxy)) { revert UnAuthorized(); // Prevent calling ERC20 Proxy directly } LibSwap.SwapData calldata currentSwapData = _swapData[i]; LibSwap.swap(_transactionId, currentSwapData); unchecked { ++i; } } } /// @dev Fetches balances of tokens to be swapped before swapping. /// @param _swapData Array of data used to execute swaps /// @return uint256[] Array of token balances. function _fetchBalances( LibSwap.SwapData[] calldata _swapData ) private view returns (uint256[] memory) { uint256 numSwaps = _swapData.length; uint256[] memory balances = new uint256[](numSwaps); address asset; for (uint256 i = 0; i < numSwaps; ) { asset = _swapData[i].receivingAssetId; balances[i] = LibAsset.getOwnBalance(asset); if (LibAsset.isNativeAsset(asset)) { balances[i] -= msg.value; } unchecked { ++i; } } return balances; } /// @dev required for receiving native assets from destination swaps // solhint-disable-next-line no-empty-blocks receive() external payable {} }
// SPDX-License-Identifier: UNLICENSED pragma solidity 0.8.17; /// @title Reentrancy Guard /// @author LI.FI (https://li.fi) /// @notice Abstract contract to provide protection against reentrancy abstract contract ReentrancyGuard { /// Storage /// bytes32 private constant NAMESPACE = keccak256("com.lifi.reentrancyguard"); /// Types /// struct ReentrancyStorage { uint256 status; } /// Errors /// error ReentrancyError(); /// Constants /// uint256 private constant _NOT_ENTERED = 0; uint256 private constant _ENTERED = 1; /// Modifiers /// modifier nonReentrant() { ReentrancyStorage storage s = reentrancyStorage(); if (s.status == _ENTERED) revert ReentrancyError(); s.status = _ENTERED; _; s.status = _NOT_ENTERED; } /// Private Methods /// /// @dev fetch local storage function reentrancyStorage() private pure returns (ReentrancyStorage storage data) { bytes32 position = NAMESPACE; // solhint-disable-next-line no-inline-assembly assembly { data.slot := position } } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.17; import { LibAsset } from "./LibAsset.sol"; import { LibUtil } from "./LibUtil.sol"; import { InvalidContract, NoSwapFromZeroBalance, InsufficientBalance } from "../Errors/GenericErrors.sol"; import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; library LibSwap { struct SwapData { address callTo; address approveTo; address sendingAssetId; address receivingAssetId; uint256 fromAmount; bytes callData; bool requiresDeposit; } event AssetSwapped( bytes32 transactionId, address dex, address fromAssetId, address toAssetId, uint256 fromAmount, uint256 toAmount, uint256 timestamp ); function swap(bytes32 transactionId, SwapData calldata _swap) internal { if (!LibAsset.isContract(_swap.callTo)) revert InvalidContract(); uint256 fromAmount = _swap.fromAmount; if (fromAmount == 0) revert NoSwapFromZeroBalance(); uint256 nativeValue = LibAsset.isNativeAsset(_swap.sendingAssetId) ? _swap.fromAmount : 0; uint256 initialSendingAssetBalance = LibAsset.getOwnBalance( _swap.sendingAssetId ); uint256 initialReceivingAssetBalance = LibAsset.getOwnBalance( _swap.receivingAssetId ); if (nativeValue == 0) { LibAsset.maxApproveERC20( IERC20(_swap.sendingAssetId), _swap.approveTo, _swap.fromAmount ); } if (initialSendingAssetBalance < _swap.fromAmount) { revert InsufficientBalance( _swap.fromAmount, initialSendingAssetBalance ); } // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory res) = _swap.callTo.call{ value: nativeValue }(_swap.callData); if (!success) { string memory reason = LibUtil.getRevertMsg(res); revert(reason); } uint256 newBalance = LibAsset.getOwnBalance(_swap.receivingAssetId); emit AssetSwapped( transactionId, _swap.callTo, _swap.sendingAssetId, _swap.receivingAssetId, _swap.fromAmount, newBalance > initialReceivingAssetBalance ? newBalance - initialReceivingAssetBalance : newBalance, block.timestamp ); } }
// SPDX-License-Identifier: UNLICENSED pragma solidity 0.8.17; import { InsufficientBalance, NullAddrIsNotAnERC20Token, NullAddrIsNotAValidSpender, NoTransferToNullAddress, InvalidAmount, NativeAssetTransferFailed } from "../Errors/GenericErrors.sol"; import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import { LibSwap } from "./LibSwap.sol"; /// @title LibAsset /// @notice This library contains helpers for dealing with onchain transfers /// of assets, including accounting for the native asset `assetId` /// conventions and any noncompliant ERC20 transfers library LibAsset { uint256 private constant MAX_UINT = type(uint256).max; address internal constant NULL_ADDRESS = address(0); /// @dev All native assets use the empty address for their asset id /// by convention address internal constant NATIVE_ASSETID = NULL_ADDRESS; //address(0) /// @notice Gets the balance of the inheriting contract for the given asset /// @param assetId The asset identifier to get the balance of /// @return Balance held by contracts using this library function getOwnBalance(address assetId) internal view returns (uint256) { return isNativeAsset(assetId) ? address(this).balance : IERC20(assetId).balanceOf(address(this)); } /// @notice Transfers ether from the inheriting contract to a given /// recipient /// @param recipient Address to send ether to /// @param amount Amount to send to given recipient function transferNativeAsset( address payable recipient, uint256 amount ) private { if (recipient == NULL_ADDRESS) revert NoTransferToNullAddress(); if (amount > address(this).balance) revert InsufficientBalance(amount, address(this).balance); // solhint-disable-next-line avoid-low-level-calls (bool success, ) = recipient.call{ value: amount }(""); if (!success) revert NativeAssetTransferFailed(); } /// @notice If the current allowance is insufficient, the allowance for a given spender /// is set to MAX_UINT. /// @param assetId Token address to transfer /// @param spender Address to give spend approval to /// @param amount Amount to approve for spending function maxApproveERC20( IERC20 assetId, address spender, uint256 amount ) internal { if (isNativeAsset(address(assetId))) { return; } if (spender == NULL_ADDRESS) { revert NullAddrIsNotAValidSpender(); } if (assetId.allowance(address(this), spender) < amount) { SafeERC20.safeApprove(IERC20(assetId), spender, 0); SafeERC20.safeApprove(IERC20(assetId), spender, MAX_UINT); } } /// @notice Transfers tokens from the inheriting contract to a given /// recipient /// @param assetId Token address to transfer /// @param recipient Address to send token to /// @param amount Amount to send to given recipient function transferERC20( address assetId, address recipient, uint256 amount ) private { if (isNativeAsset(assetId)) { revert NullAddrIsNotAnERC20Token(); } if (recipient == NULL_ADDRESS) { revert NoTransferToNullAddress(); } uint256 assetBalance = IERC20(assetId).balanceOf(address(this)); if (amount > assetBalance) { revert InsufficientBalance(amount, assetBalance); } SafeERC20.safeTransfer(IERC20(assetId), recipient, amount); } /// @notice Transfers tokens from a sender to a given recipient /// @param assetId Token address to transfer /// @param from Address of sender/owner /// @param to Address of recipient/spender /// @param amount Amount to transfer from owner to spender function transferFromERC20( address assetId, address from, address to, uint256 amount ) internal { if (isNativeAsset(assetId)) { revert NullAddrIsNotAnERC20Token(); } if (to == NULL_ADDRESS) { revert NoTransferToNullAddress(); } IERC20 asset = IERC20(assetId); uint256 prevBalance = asset.balanceOf(to); SafeERC20.safeTransferFrom(asset, from, to, amount); if (asset.balanceOf(to) - prevBalance != amount) { revert InvalidAmount(); } } function depositAsset(address assetId, uint256 amount) internal { if (amount == 0) revert InvalidAmount(); if (isNativeAsset(assetId)) { if (msg.value < amount) revert InvalidAmount(); } else { uint256 balance = IERC20(assetId).balanceOf(msg.sender); if (balance < amount) revert InsufficientBalance(amount, balance); transferFromERC20(assetId, msg.sender, address(this), amount); } } function depositAssets(LibSwap.SwapData[] calldata swaps) internal { for (uint256 i = 0; i < swaps.length; ) { LibSwap.SwapData calldata swap = swaps[i]; if (swap.requiresDeposit) { depositAsset(swap.sendingAssetId, swap.fromAmount); } unchecked { i++; } } } /// @notice Determines whether the given assetId is the native asset /// @param assetId The asset identifier to evaluate /// @return Boolean indicating if the asset is the native asset function isNativeAsset(address assetId) internal pure returns (bool) { return assetId == NATIVE_ASSETID; } /// @notice Wrapper function to transfer a given asset (native or erc20) to /// some recipient. Should handle all non-compliant return value /// tokens as well by using the SafeERC20 contract by open zeppelin. /// @param assetId Asset id for transfer (address(0) for native asset, /// token address for erc20s) /// @param recipient Address to send asset to /// @param amount Amount to send to given recipient function transferAsset( address assetId, address payable recipient, uint256 amount ) internal { isNativeAsset(assetId) ? transferNativeAsset(recipient, amount) : transferERC20(assetId, recipient, amount); } /// @dev Checks whether the given address is a contract and contains code function isContract(address _contractAddr) internal view returns (bool) { uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(_contractAddr) } return size > 0; } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.17; error AlreadyInitialized(); error CannotAuthoriseSelf(); error CannotBridgeToSameNetwork(); error ContractCallNotAllowed(); error CumulativeSlippageTooHigh(uint256 minAmount, uint256 receivedAmount); error ExternalCallFailed(); error InformationMismatch(); error InsufficientBalance(uint256 required, uint256 balance); error InvalidAmount(); error InvalidCallData(); error InvalidConfig(); error InvalidContract(); error InvalidDestinationChain(); error InvalidFallbackAddress(); error InvalidReceiver(); error InvalidSendingToken(); error NativeAssetNotSupported(); error NativeAssetTransferFailed(); error NoSwapDataProvided(); error NoSwapFromZeroBalance(); error NotAContract(); error NotInitialized(); error NoTransferToNullAddress(); error NullAddrIsNotAnERC20Token(); error NullAddrIsNotAValidSpender(); error OnlyContractOwner(); error RecoveryAddressCannotBeZero(); error ReentrancyError(); error TokenNotSupported(); error UnAuthorized(); error UnsupportedChainId(uint256 chainId); error WithdrawFailed(); error ZeroAmount();
// SPDX-License-Identifier: MIT pragma solidity 0.8.17; interface ILiFi { /// Structs /// struct BridgeData { bytes32 transactionId; string bridge; string integrator; address referrer; address sendingAssetId; address receiver; uint256 minAmount; uint256 destinationChainId; bool hasSourceSwaps; bool hasDestinationCall; } /// Events /// event LiFiTransferStarted(ILiFi.BridgeData bridgeData); event LiFiTransferCompleted( bytes32 indexed transactionId, address receivingAssetId, address receiver, uint256 amount, uint256 timestamp ); event LiFiTransferRecovered( bytes32 indexed transactionId, address receivingAssetId, address receiver, uint256 amount, uint256 timestamp ); event LiFiGenericSwapCompleted( bytes32 indexed transactionId, string integrator, string referrer, address receiver, address fromAssetId, address toAssetId, uint256 fromAmount, uint256 toAmount ); // Deprecated but kept here to include in ABI to parse historic events event LiFiSwappedGeneric( bytes32 indexed transactionId, string integrator, string referrer, address fromAssetId, address toAssetId, uint256 fromAmount, uint256 toAmount ); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.17; interface IERC20Proxy { function transferFrom( address tokenAddress, address from, address to, uint256 amount ) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/utils/ERC1155Holder.sol) pragma solidity ^0.8.0; import "./ERC1155Receiver.sol"; /** * Simple implementation of `ERC1155Receiver` that will allow a contract to hold ERC1155 tokens. * * IMPORTANT: When inheriting this contract, you must include a way to use the received tokens, otherwise they will be * stuck. * * @dev _Available since v3.1._ */ contract ERC1155Holder is ERC1155Receiver { 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; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/utils/ERC721Holder.sol) pragma solidity ^0.8.0; import "../IERC721Receiver.sol"; /** * @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; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @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 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); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.17; import "./LibBytes.sol"; library LibUtil { using LibBytes for bytes; function getRevertMsg( bytes memory _res ) internal pure returns (string memory) { // If the _res length is less than 68, then the transaction failed silently (without a revert message) if (_res.length < 68) return "Transaction reverted silently"; bytes memory revertData = _res.slice(4, _res.length - 4); // Remove the selector which is the first 4 bytes return abi.decode(revertData, (string)); // All that remains is the revert string } /// @notice Determines whether the given address is the zero address /// @param addr The address to verify /// @return Boolean indicating if the address is the zero address function isZeroAddress(address addr) internal pure returns (bool) { return addr == address(0); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; import "../extensions/IERC20Permit.sol"; import "../../../utils/Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; /** * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } /** * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful. */ function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' require( (value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } /** * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 oldAllowance = token.allowance(address(this), spender); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value)); } /** * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value)); } } /** * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. Compatible with tokens that require the approval to be set to * 0 before setting it to a non-zero value. */ function forceApprove(IERC20 token, address spender, uint256 value) internal { bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value); if (!_callOptionalReturnBool(token, approvalCall)) { _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0)); _callOptionalReturn(token, approvalCall); } } /** * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`. * Revert on invalid signature. */ function safePermit( IERC20Permit token, address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) internal { uint256 nonceBefore = token.nonces(owner); token.permit(owner, spender, value, deadline, v, r, s); uint256 nonceAfter = token.nonces(owner); require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed"); } /** * @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"); require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } /** * @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). * * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead. */ function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) { // 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 cannot use {Address-functionCall} here since this should return false // and not revert is the subcall reverts. (bool success, bytes memory returndata) = address(token).call(data); return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC1155/utils/ERC1155Receiver.sol) pragma solidity ^0.8.0; import "../IERC1155Receiver.sol"; import "../../../utils/introspection/ERC165.sol"; /** * @dev _Available since v3.1._ */ abstract contract ERC1155Receiver is ERC165, IERC1155Receiver { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (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 `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.17; library LibBytes { // solhint-disable no-inline-assembly // LibBytes specific errors error SliceOverflow(); error SliceOutOfBounds(); error AddressOutOfBounds(); bytes16 private constant _SYMBOLS = "0123456789abcdef"; // ------------------------- function slice( bytes memory _bytes, uint256 _start, uint256 _length ) internal pure returns (bytes memory) { if (_length + 31 < _length) revert SliceOverflow(); if (_bytes.length < _start + _length) revert SliceOutOfBounds(); bytes memory tempBytes; assembly { switch iszero(_length) case 0 { // Get a location of some free memory and store it in tempBytes as // Solidity does for memory variables. tempBytes := mload(0x40) // The first word of the slice result is potentially a partial // word read from the original array. To read it, we calculate // the length of that partial word and start copying that many // bytes into the array. The first word we copy will start with // data we don't care about, but the last `lengthmod` bytes will // land at the beginning of the contents of the new array. When // we're done copying, we overwrite the full first word with // the actual length of the slice. let lengthmod := and(_length, 31) // The multiplication in the next line is necessary // because when slicing multiples of 32 bytes (lengthmod == 0) // the following copy loop was copying the origin's length // and then ending prematurely not copying everything it should. let mc := add( add(tempBytes, lengthmod), mul(0x20, iszero(lengthmod)) ) let end := add(mc, _length) for { // The multiplication in the next line has the same exact purpose // as the one above. let cc := add( add( add(_bytes, lengthmod), mul(0x20, iszero(lengthmod)) ), _start ) } lt(mc, end) { mc := add(mc, 0x20) cc := add(cc, 0x20) } { mstore(mc, mload(cc)) } mstore(tempBytes, _length) //update free-memory pointer //allocating the array padded to 32 bytes like the compiler does now mstore(0x40, and(add(mc, 31), not(31))) } //if we want a zero-length slice let's just return a zero-length array default { tempBytes := mload(0x40) //zero out the 32 bytes slice we are about to return //we need to do it because Solidity does not garbage collect mstore(tempBytes, 0) mstore(0x40, add(tempBytes, 0x20)) } } return tempBytes; } function toAddress( bytes memory _bytes, uint256 _start ) internal pure returns (address) { if (_bytes.length < _start + 20) { revert AddressOutOfBounds(); } address tempAddress; assembly { tempAddress := div( mload(add(add(_bytes, 0x20), _start)), 0x1000000000000000000000000 ) } return tempAddress; } /// Copied from OpenZeppelin's `Strings.sol` utility library. /// https://github.com/OpenZeppelin/openzeppelin-contracts/blob/8335676b0e99944eef6a742e16dcd9ff6e68e609/contracts/utils/Strings.sol 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] = _SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/IERC20Permit.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. */ interface IERC20Permit { /** * @dev Sets `value` 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: * * - `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 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; /** * @dev Returns the current 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 Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (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 * * Furthermore, `isContract` will also return true if the target contract within * the same transaction is already scheduled for destruction by `SELFDESTRUCT`, * which only has an effect at the end of a transaction. * ==== * * [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://consensys.net/diligence/blog/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/v0.8.0/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 functionCallWithValue(target, data, 0, "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"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, 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) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, 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) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or 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 { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // 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 /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev _Available since v3.1._ */ interface IERC1155Receiver is IERC165 { /** * @dev Handles the receipt of a single ERC1155 token type. This function is * called at the end of a `safeTransferFrom` after the balance has been updated. * * NOTE: 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. * * NOTE: 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); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @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; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
{ "remappings": [ "@eth-optimism/=node_modules/@hop-protocol/sdk/node_modules/@eth-optimism/", "@openzeppelin/=lib/openzeppelin-contracts/", "@uniswap/=node_modules/@uniswap/", "celer-network/=lib/sgn-v2-contracts/", "create3-factory/=lib/create3-factory/src/", "ds-test/=lib/ds-test/src/", "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/", "eth-gas-reporter/=node_modules/eth-gas-reporter/", "forge-std/=lib/forge-std/src/", "hardhat-deploy/=node_modules/hardhat-deploy/", "hardhat/=node_modules/hardhat/", "lifi/=src/", "openzeppelin-contracts/=lib/openzeppelin-contracts/", "openzeppelin/=lib/openzeppelin-contracts/contracts/", "sgn-v2-contracts/=lib/sgn-v2-contracts/contracts/", "solmate/=lib/solmate/src/", "test/=test/" ], "optimizer": { "enabled": true, "runs": 1000000 }, "metadata": { "bytecodeHash": "ipfs" }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "evmVersion": "london", "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
[{"inputs":[{"internalType":"address","name":"_erc20Proxy","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"uint256","name":"required","type":"uint256"},{"internalType":"uint256","name":"balance","type":"uint256"}],"name":"InsufficientBalance","type":"error"},{"inputs":[],"name":"InvalidAmount","type":"error"},{"inputs":[],"name":"InvalidContract","type":"error"},{"inputs":[],"name":"NativeAssetTransferFailed","type":"error"},{"inputs":[],"name":"NoSwapFromZeroBalance","type":"error"},{"inputs":[],"name":"NoTransferToNullAddress","type":"error"},{"inputs":[],"name":"NullAddrIsNotAValidSpender","type":"error"},{"inputs":[],"name":"NullAddrIsNotAnERC20Token","type":"error"},{"inputs":[],"name":"ReentrancyError","type":"error"},{"inputs":[],"name":"SliceOutOfBounds","type":"error"},{"inputs":[],"name":"SliceOverflow","type":"error"},{"inputs":[],"name":"UnAuthorized","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"proxy","type":"address"}],"name":"ERC20ProxySet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"transactionId","type":"bytes32"},{"indexed":false,"internalType":"string","name":"integrator","type":"string"},{"indexed":false,"internalType":"string","name":"referrer","type":"string"},{"indexed":false,"internalType":"address","name":"receiver","type":"address"},{"indexed":false,"internalType":"address","name":"fromAssetId","type":"address"},{"indexed":false,"internalType":"address","name":"toAssetId","type":"address"},{"indexed":false,"internalType":"uint256","name":"fromAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"toAmount","type":"uint256"}],"name":"LiFiGenericSwapCompleted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"transactionId","type":"bytes32"},{"indexed":false,"internalType":"string","name":"integrator","type":"string"},{"indexed":false,"internalType":"string","name":"referrer","type":"string"},{"indexed":false,"internalType":"address","name":"fromAssetId","type":"address"},{"indexed":false,"internalType":"address","name":"toAssetId","type":"address"},{"indexed":false,"internalType":"uint256","name":"fromAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"toAmount","type":"uint256"}],"name":"LiFiSwappedGeneric","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"transactionId","type":"bytes32"},{"indexed":false,"internalType":"address","name":"receivingAssetId","type":"address"},{"indexed":false,"internalType":"address","name":"receiver","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"LiFiTransferCompleted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"transactionId","type":"bytes32"},{"indexed":false,"internalType":"address","name":"receivingAssetId","type":"address"},{"indexed":false,"internalType":"address","name":"receiver","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"LiFiTransferRecovered","type":"event"},{"anonymous":false,"inputs":[{"components":[{"internalType":"bytes32","name":"transactionId","type":"bytes32"},{"internalType":"string","name":"bridge","type":"string"},{"internalType":"string","name":"integrator","type":"string"},{"internalType":"address","name":"referrer","type":"address"},{"internalType":"address","name":"sendingAssetId","type":"address"},{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"minAmount","type":"uint256"},{"internalType":"uint256","name":"destinationChainId","type":"uint256"},{"internalType":"bool","name":"hasSourceSwaps","type":"bool"},{"internalType":"bool","name":"hasDestinationCall","type":"bool"}],"indexed":false,"internalType":"struct ILiFi.BridgeData","name":"bridgeData","type":"tuple"}],"name":"LiFiTransferStarted","type":"event"},{"inputs":[],"name":"erc20Proxy","outputs":[{"internalType":"contract IERC20Proxy","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256[]","name":"","type":"uint256[]"},{"internalType":"uint256[]","name":"","type":"uint256[]"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"onERC1155BatchReceived","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"onERC1155Received","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"onERC721Received","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_transactionId","type":"bytes32"},{"components":[{"internalType":"address","name":"callTo","type":"address"},{"internalType":"address","name":"approveTo","type":"address"},{"internalType":"address","name":"sendingAssetId","type":"address"},{"internalType":"address","name":"receivingAssetId","type":"address"},{"internalType":"uint256","name":"fromAmount","type":"uint256"},{"internalType":"bytes","name":"callData","type":"bytes"},{"internalType":"bool","name":"requiresDeposit","type":"bool"}],"internalType":"struct LibSwap.SwapData[]","name":"_swapData","type":"tuple[]"},{"internalType":"address","name":"_transferredAssetId","type":"address"},{"internalType":"address payable","name":"_receiver","type":"address"}],"name":"swapAndCompleteBridgeTokens","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_transactionId","type":"bytes32"},{"components":[{"internalType":"address","name":"callTo","type":"address"},{"internalType":"address","name":"approveTo","type":"address"},{"internalType":"address","name":"sendingAssetId","type":"address"},{"internalType":"address","name":"receivingAssetId","type":"address"},{"internalType":"uint256","name":"fromAmount","type":"uint256"},{"internalType":"bytes","name":"callData","type":"bytes"},{"internalType":"bool","name":"requiresDeposit","type":"bool"}],"internalType":"struct LibSwap.SwapData[]","name":"_swapData","type":"tuple[]"},{"internalType":"address","name":"_transferredAssetId","type":"address"},{"internalType":"address payable","name":"_receiver","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"swapAndExecute","outputs":[],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000005741a7ffe7c39ca175546a54985fa79211290b51
-----Decoded View---------------
Arg [0] : _erc20Proxy (address): 0x5741A7FfE7c39Ca175546a54985fA79211290b51
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000005741a7ffe7c39ca175546a54985fa79211290b51Loading...LoadingLoading...Loading
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Loading...LoadingLoading...LoadingLoading...LoadingLoading...LoadingLoading...LoadingMultichain Portfolio | 26 Chains
Chain Token Portfolio % Price Amount Value OP 54.23% $10.9 2.0839 $22.71 OP 2.40% $1.4 0.7164 $1.01 ARB 31.98% $10.91 1.228 $13.4 ARB 0.39% $1 0.1635 $0.1641 BSC 6.40% $521.92 0.00513608 $2.68 BSC 0.32% $58,208.46 0.00000231 $0.1345 AVAX 2.64% $25.73 0.043 $1.11 AVAX 0.24% $22.2 0.0045 $0.099899 ETH Ether (ETH)1.40% $2,483.86 0.00023573 $0.58552 MANTLE <0.01% $0.598409 0.000001 $0.000001 Loading...Loading[ Download: CSV Export ]A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.
Address QR Code
My Address - Private Name Tag or Note
My Name Tag:
Private Name Tags (up to 35 characters) can be used for easy identification of addressesPrivate Note:
A private note (up to 500 characters) can be attached to this address.
Please DO NOT store any passwords or private keys here.Compiler specific version warnings:
The compiled contract might be susceptible to VerbatimInvalidDeduplication (low-severity), FullInlinerNonExpressionSplitArgumentEvaluationOrder (low-severity), MissingSideEffectsOnSelectorAccess (low-severity) Solidity Compiler Bugs.
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