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ERC-20
Overview
Max Total Supply
0 GelatoRelayERC2771
Holders
0
Total Transfers
-
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 0 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
GelatoRelayERC2771
Compiler Version
v0.8.19+commit.7dd6d404
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity 0.8.19; import {IGelatoRelayERC2771} from "./interfaces/IGelatoRelayERC2771.sol"; import {GelatoRelayERC2771Base} from "./abstract/GelatoRelayERC2771Base.sol"; import {GelatoCallUtils} from "./lib/GelatoCallUtils.sol"; import {GelatoTokenUtils} from "./lib/GelatoTokenUtils.sol"; import {CallWithERC2771} from "./types/CallTypes.sol"; import { _encodeFeeCollectorERC2771, _encodeRelayContextERC2771 } from "@gelatonetwork/relay-context/contracts/functions/GelatoRelayUtils.sol"; import { _getFeeCollectorRelayContext, _getFeeRelayContext } from "@gelatonetwork/relay-context/contracts/GelatoRelayContext.sol"; import { __getFeeCollector } from "@gelatonetwork/relay-context/contracts/GelatoRelayFeeCollector.sol"; /// @title Gelato Relay contract /// @notice This contract deals with synchronous payments and Gelato 1Balance payments /// @dev This contract must NEVER hold funds! /// @dev Maliciously crafted transaction payloads could wipe out any funds left here // solhint-disable-next-line max-states-count contract GelatoRelayERC2771 is IGelatoRelayERC2771, GelatoRelayERC2771Base { using GelatoCallUtils for address; using GelatoTokenUtils for address; //solhint-disable-next-line const-name-snakecase string public constant name = "GelatoRelayERC2771"; //solhint-disable-next-line const-name-snakecase string public constant version = "1"; // solhint-disable-next-line no-empty-blocks constructor(address _gelato) GelatoRelayERC2771Base(_gelato) {} /// @notice Relay call with Synchronous Payment /// @notice The target contract pays Gelato during the call forward /// @dev This is the most straightforward use case, and `transfer` handles token payments. /// @param _call Relay call data packed into CallWithERC2771 struct /// @param _isRelayContext true: all relay context encoding, false: only feeCollector encoding /// @param _correlationId Unique task identifier generated by gelato // solhint-disable-next-line function-max-lines function callWithSyncFeeERC2771( CallWithERC2771 calldata _call, address _feeToken, bytes calldata _userSignature, bool _isRelayContext, bytes32 _correlationId ) external onlyGelato { // CHECKS _requireChainId( _call.chainId, "GelatoRelayERC2771.callWithSyncFeeERC2771:" ); uint256 storedUserNonce = userNonce[_call.user]; // For the user, we enforce nonce ordering _requireUserBasics( _call.userNonce, storedUserNonce, _call.userDeadline, "GelatoRelayERC2771.callWithSyncFeeERC2771:" ); bytes32 domainSeparator = _getDomainSeparator(); // Verify user's signature _requireCallWithSyncFeeERC2771Signature( domainSeparator, _call, _userSignature, _call.user ); // EFFECTS userNonce[_call.user] = storedUserNonce + 1; // INTERACTIONS _isRelayContext ? _call.target.revertingContractCall( _encodeRelayContextERC2771( _call.data, _getFeeCollectorRelayContext(), _feeToken, _getFeeRelayContext(), _call.user ), "GelatoRelayERC2771.callWithSyncFeeERC2771:" ) : _call.target.revertingContractCall( _encodeFeeCollectorERC2771( _call.data, __getFeeCollector(), _call.user ), "GelatoRelayERC2771.callWithSyncFeeERC2771:" ); emit LogCallWithSyncFeeERC2771(_call.target, _correlationId); } //solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32) { return _getDomainSeparator(); } function _getDomainSeparator() internal view returns (bytes32) { return keccak256( abi.encode( keccak256( bytes( //solhint-disable-next-line max-line-length "EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)" ) ), keccak256(bytes(name)), keccak256(bytes(version)), block.chainid, address(this) ) ); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.1; import {GelatoRelayBase} from "./base/GelatoRelayBase.sol"; import {TokenUtils} from "./lib/TokenUtils.sol"; uint256 constant _FEE_COLLECTOR_START = 72; // offset: address + address + uint256 uint256 constant _FEE_TOKEN_START = 52; // offset: address + uint256 uint256 constant _FEE_START = 32; // offset: uint256 // WARNING: Do not use this free fn by itself, always inherit GelatoRelayContext // solhint-disable-next-line func-visibility, private-vars-leading-underscore function _getFeeCollectorRelayContext() pure returns (address feeCollector) { assembly { feeCollector := shr( 96, calldataload(sub(calldatasize(), _FEE_COLLECTOR_START)) ) } } // WARNING: Do not use this free fn by itself, always inherit GelatoRelayContext // solhint-disable-next-line func-visibility, private-vars-leading-underscore function _getFeeTokenRelayContext() pure returns (address feeToken) { assembly { feeToken := shr(96, calldataload(sub(calldatasize(), _FEE_TOKEN_START))) } } // WARNING: Do not use this free fn by itself, always inherit GelatoRelayContext // solhint-disable-next-line func-visibility, private-vars-leading-underscore function _getFeeRelayContext() pure returns (uint256 fee) { assembly { fee := calldataload(sub(calldatasize(), _FEE_START)) } } /** * @dev Context variant with feeCollector, feeToken and fee appended to msg.data * Expects calldata encoding: * abi.encodePacked( _data, * _feeCollector, * _feeToken, * _fee); * Therefore, we're expecting 20 + 20 + 32 = 72 bytes to be appended to normal msgData * 32bytes start offsets from calldatasize: * feeCollector: - 72 bytes * feeToken: - 52 bytes * fee: - 32 bytes */ /// @dev Do not use with GelatoRelayFeeCollector - pick only one abstract contract GelatoRelayContext is GelatoRelayBase { using TokenUtils for address; // DANGER! Only use with onlyGelatoRelay `_isGelatoRelay` before transferring function _transferRelayFee() internal { _getFeeToken().transfer(_getFeeCollector(), _getFee()); } // DANGER! Only use with onlyGelatoRelay `_isGelatoRelay` before transferring function _transferRelayFeeCapped(uint256 _maxFee) internal { uint256 fee = _getFee(); require( fee <= _maxFee, "GelatoRelayContext._transferRelayFeeCapped: maxFee" ); _getFeeToken().transfer(_getFeeCollector(), fee); } function _getMsgData() internal view returns (bytes calldata) { return _isGelatoRelay(msg.sender) ? msg.data[:msg.data.length - _FEE_COLLECTOR_START] : msg.data; } // Only use with GelatoRelayBase onlyGelatoRelay or `_isGelatoRelay` checks function _getFeeCollector() internal pure returns (address) { return _getFeeCollectorRelayContext(); } // Only use with previous onlyGelatoRelay or `_isGelatoRelay` checks function _getFeeToken() internal pure returns (address) { return _getFeeTokenRelayContext(); } // Only use with previous onlyGelatoRelay or `_isGelatoRelay` checks function _getFee() internal pure returns (uint256) { return _getFeeRelayContext(); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.1; import {GelatoRelayBase} from "./base/GelatoRelayBase.sol"; uint256 constant _FEE_COLLECTOR_START = 20; // WARNING: Do not use this free fn by itself, always inherit GelatoRelayFeeCollector // solhint-disable-next-line func-visibility, private-vars-leading-underscore function __getFeeCollector() pure returns (address feeCollector) { assembly { feeCollector := shr( 96, calldataload(sub(calldatasize(), _FEE_COLLECTOR_START)) ) } } /** * @dev Context variant with only feeCollector appended to msg.data * Expects calldata encoding: * abi.encodePacked(bytes data, address feeCollectorAddress) * Therefore, we're expecting 20bytes to be appended to normal msgData * 20bytes start offsets from calldatasize: * feeCollector: -20 */ /// @dev Do not use with GelatoRelayContext - pick only one abstract contract GelatoRelayFeeCollector is GelatoRelayBase { function _getMsgData() internal view returns (bytes calldata) { return _isGelatoRelay(msg.sender) ? msg.data[:msg.data.length - _FEE_COLLECTOR_START] : msg.data; } // Only use with GelatoRelayBase onlyGelatoRelay or `_isGelatoRelay` checks function _getFeeCollector() internal pure returns (address) { return __getFeeCollector(); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.1; import {GELATO_RELAY, GELATO_RELAY_ZKSYNC} from "../constants/GelatoRelay.sol"; abstract contract GelatoRelayBase { modifier onlyGelatoRelay() { require(_isGelatoRelay(msg.sender), "onlyGelatoRelay"); _; } function _isGelatoRelay(address _forwarder) internal view returns (bool) { // Use another address on zkSync if (block.chainid == 324 || block.chainid == 280) { return _forwarder == GELATO_RELAY_ZKSYNC; } return _forwarder == GELATO_RELAY; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.1; address constant GELATO_RELAY = 0xaBcC9b596420A9E9172FD5938620E265a0f9Df92; address constant GELATO_RELAY_ERC2771 = 0xb539068872230f20456CF38EC52EF2f91AF4AE49; address constant GELATO_RELAY_ZKSYNC = 0xB16a1DbE755f992636705fDbb3A8678a657EB3ea; address constant GELATO_RELAY_ERC2771_ZKSYNC = 0x22DCC39b2AC376862183dd35A1664798dafC7Da6;
// SPDX-License-Identifier: MIT pragma solidity ^0.8.1; address constant NATIVE_TOKEN = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
// SPDX-License-Identifier: MIT pragma solidity ^0.8.1; // Four different types of calldata packing // 1. encodeFeeCollector: append 20 byte feeCollector address // 2. encodeRelayContext: append 20 byte feeCollector address, 20 byte feeToken address, 32 byte uint256 fee // 3. encodeFeeCollectorERC2771: append 20 byte feeCollector address, 20 byte _msgSender address // 4. encodeRelayContextERC2771: append 20 byte feeCollector address, 20 byte feeToken address, 32 byte uint256 fee, 20 byte _msgSender address function _encodeFeeCollector(bytes calldata _data, address _feeCollector) pure returns (bytes memory) { return abi.encodePacked(_data, _feeCollector); } function _encodeRelayContext( bytes calldata _data, address _feeCollector, address _feeToken, uint256 _fee ) pure returns (bytes memory) { return abi.encodePacked(_data, _feeCollector, _feeToken, _fee); } // ERC2771 Encodings // vanilla ERC2771 context encoding // solhint-disable-next-line private-vars-leading-underscore, func-visibility function _encodeERC2771Context(bytes calldata _data, address _msgSender) pure returns (bytes memory) { return abi.encodePacked(_data, _msgSender); } function _encodeFeeCollectorERC2771( bytes calldata _data, address _feeCollector, address _msgSender ) pure returns (bytes memory) { return abi.encodePacked(_data, _feeCollector, _msgSender); } function _encodeRelayContextERC2771( bytes calldata _data, address _feeCollector, address _feeToken, uint256 _fee, address _msgSender ) pure returns (bytes memory) { return abi.encodePacked(_data, _feeCollector, _feeToken, _fee, _msgSender); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.1; import {NATIVE_TOKEN} from "../constants/Tokens.sol"; import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import {Address} from "@openzeppelin/contracts/utils/Address.sol"; import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; library TokenUtils { using SafeERC20 for IERC20; modifier onlyERC20(address _token) { require(_token != NATIVE_TOKEN, "TokenUtils.onlyERC20"); _; } function transfer( address _token, address _to, uint256 _amount ) internal { if (_amount == 0) return; _token == NATIVE_TOKEN ? Address.sendValue(payable(_to), _amount) : IERC20(_token).safeTransfer(_to, _amount); } function transferFrom( address _token, address _from, address _to, uint256 _amount ) internal onlyERC20(_token) { if (_amount == 0) return; IERC20(_token).safeTransferFrom(_from, _to, _amount); } function getBalance(address token, address user) internal view returns (uint256) { return token == NATIVE_TOKEN ? user.balance : IERC20(token).balanceOf(user); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (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 // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-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 v4.8.0) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; import "../extensions/draft-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; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom( IERC20 token, address from, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove( IERC20 token, address spender, uint256 value ) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' require( (value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender) + value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance( IERC20 token, address spender, uint256 value ) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); uint256 newAllowance = oldAllowance - value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } } 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"); if (returndata.length > 0) { // Return data is optional require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (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 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 v4.8.0) (utils/Strings.sol) pragma solidity ^0.8.0; import "./math/Math.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant _SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), _SYMBOLS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @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] = _SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/ECDSA.sol) pragma solidity ^0.8.0; import "../Strings.sol"; /** * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations. * * These functions can be used to verify that a message was signed by the holder * of the private keys of a given address. */ library ECDSA { enum RecoverError { NoError, InvalidSignature, InvalidSignatureLength, InvalidSignatureS, InvalidSignatureV // Deprecated in v4.8 } function _throwError(RecoverError error) private pure { if (error == RecoverError.NoError) { return; // no error: do nothing } else if (error == RecoverError.InvalidSignature) { revert("ECDSA: invalid signature"); } else if (error == RecoverError.InvalidSignatureLength) { revert("ECDSA: invalid signature length"); } else if (error == RecoverError.InvalidSignatureS) { revert("ECDSA: invalid signature 's' value"); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature` or error string. This address can then be used for verification purposes. * * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {toEthSignedMessageHash} on it. * * Documentation for signature generation: * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js] * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers] * * _Available since v4.3._ */ function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) { if (signature.length == 65) { bytes32 r; bytes32 s; uint8 v; // ecrecover takes the signature parameters, and the only way to get them // currently is to use assembly. /// @solidity memory-safe-assembly assembly { r := mload(add(signature, 0x20)) s := mload(add(signature, 0x40)) v := byte(0, mload(add(signature, 0x60))) } return tryRecover(hash, v, r, s); } else { return (address(0), RecoverError.InvalidSignatureLength); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature`. This address can then be used for verification purposes. * * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {toEthSignedMessageHash} on it. */ function recover(bytes32 hash, bytes memory signature) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, signature); _throwError(error); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately. * * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures] * * _Available since v4.3._ */ function tryRecover( bytes32 hash, bytes32 r, bytes32 vs ) internal pure returns (address, RecoverError) { bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff); uint8 v = uint8((uint256(vs) >> 255) + 27); return tryRecover(hash, v, r, s); } /** * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately. * * _Available since v4.2._ */ function recover( bytes32 hash, bytes32 r, bytes32 vs ) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, r, vs); _throwError(error); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `v`, * `r` and `s` signature fields separately. * * _Available since v4.3._ */ function tryRecover( bytes32 hash, uint8 v, bytes32 r, bytes32 s ) internal pure returns (address, RecoverError) { // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most // signatures from current libraries generate a unique signature with an s-value in the lower half order. // // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept // these malleable signatures as well. if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) { return (address(0), RecoverError.InvalidSignatureS); } // If the signature is valid (and not malleable), return the signer address address signer = ecrecover(hash, v, r, s); if (signer == address(0)) { return (address(0), RecoverError.InvalidSignature); } return (signer, RecoverError.NoError); } /** * @dev Overload of {ECDSA-recover} that receives the `v`, * `r` and `s` signature fields separately. */ function recover( bytes32 hash, uint8 v, bytes32 r, bytes32 s ) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, v, r, s); _throwError(error); return recovered; } /** * @dev Returns an Ethereum Signed Message, created from a `hash`. This * produces hash corresponding to the one signed with the * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] * JSON-RPC method as part of EIP-191. * * See {recover}. */ function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) { // 32 is the length in bytes of hash, // enforced by the type signature above return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash)); } /** * @dev Returns an Ethereum Signed Message, created from `s`. This * produces hash corresponding to the one signed with the * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] * JSON-RPC method as part of EIP-191. * * See {recover}. */ function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) { return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s)); } /** * @dev Returns an Ethereum Signed Typed Data, created from a * `domainSeparator` and a `structHash`. This produces hash corresponding * to the one signed with the * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] * JSON-RPC method as part of EIP-712. * * See {recover}. */ function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) { return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @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. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv( uint256 x, uint256 y, uint256 denominator ) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // 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(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { return prod0 / denominator; } // 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]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. // See https://cs.stackexchange.com/q/138556/92363. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. 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 for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the 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. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // 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 preconditions 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 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv( uint256 x, uint256 y, uint256 denominator, Rounding rounding ) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (rounding == Rounding.Up && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2, rounded down, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10, rounded down, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10**64) { value /= 10**64; result += 64; } if (value >= 10**32) { value /= 10**32; result += 32; } if (value >= 10**16) { value /= 10**16; result += 16; } if (value >= 10**8) { value /= 10**8; result += 8; } if (value >= 10**4) { value /= 10**4; result += 4; } if (value >= 10**2) { value /= 10**2; result += 2; } if (value >= 10**1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0); } } /** * @dev Return the log in base 256, rounded down, of a positive value. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0); } } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.19; import { IGelatoRelayERC2771Base } from "../interfaces/IGelatoRelayERC2771Base.sol"; import {GelatoString} from "../lib/GelatoString.sol"; import {CallWithERC2771} from "../types/CallTypes.sol"; import {ECDSA} from "@openzeppelin/contracts/utils/cryptography/ECDSA.sol"; abstract contract GelatoRelayERC2771Base is IGelatoRelayERC2771Base { using GelatoString for string; // solhint-disable-next-line named-parameters-mapping mapping(address => uint256) public userNonce; address public immutable gelato; bytes32 public constant CALL_WITH_SYNC_FEE_ERC2771_TYPEHASH = keccak256( bytes( // solhint-disable-next-line max-line-length "CallWithSyncFeeERC2771(uint256 chainId,address target,bytes data,address user,uint256 userNonce,uint256 userDeadline)" ) ); modifier onlyGelato() { require(msg.sender == gelato, "Only callable by gelato"); _; } constructor(address _gelato) { gelato = _gelato; } function _requireChainId(uint256 _chainId, string memory _errorTrace) internal view { require(_chainId == block.chainid, _errorTrace.suffix("chainid")); } function _requireUserBasics( uint256 _callUserNonce, uint256 _storedUserNonce, uint256 _userDeadline, string memory _errorTrace ) internal view { require( _callUserNonce == _storedUserNonce, _errorTrace.suffix("nonce") ); require( // solhint-disable-next-line not-rely-on-time _userDeadline == 0 || _userDeadline >= block.timestamp, _errorTrace.suffix("deadline") ); } function _requireCallWithSyncFeeERC2771Signature( bytes32 _domainSeparator, CallWithERC2771 calldata _call, bytes calldata _signature, address _expectedSigner ) internal pure returns (bytes32 digest) { digest = keccak256( abi.encodePacked( "\x19\x01", _domainSeparator, keccak256(_abiEncodeCallWithSyncFeeERC2771(_call)) ) ); (address recovered, ECDSA.RecoverError error) = ECDSA.tryRecover( digest, _signature ); require( error == ECDSA.RecoverError.NoError && recovered == _expectedSigner, "GelatoRelayERC2771Base._requireCallWithSyncFeeERC2771Signature" ); } function _abiEncodeCallWithSyncFeeERC2771(CallWithERC2771 calldata _call) internal pure returns (bytes memory) { return abi.encode( CALL_WITH_SYNC_FEE_ERC2771_TYPEHASH, _call.chainId, _call.target, keccak256(_call.data), _call.user, _call.userNonce, _call.userDeadline ); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.19; address constant NATIVE_TOKEN = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
// SPDX-License-Identifier: MIT pragma solidity 0.8.19; import {CallWithERC2771} from "../types/CallTypes.sol"; interface IGelatoRelayERC2771 { event LogCallWithSyncFeeERC2771( address indexed target, bytes32 indexed correlationId ); function callWithSyncFeeERC2771( CallWithERC2771 calldata _call, address _feeToken, bytes calldata _userSignature, bool _isRelayContext, bytes32 _correlationId ) external; }
// SPDX-License-Identifier: MIT pragma solidity 0.8.19; // solhint-disable func-name-mixedcase interface IGelatoRelayERC2771Base { function userNonce(address _user) external view returns (uint256); function gelato() external view returns (address); function CALL_WITH_SYNC_FEE_ERC2771_TYPEHASH() external pure returns (bytes32); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.19; library GelatoBytes { function calldataSliceSelector(bytes calldata _bytes) internal pure returns (bytes4 selector) { selector = _bytes[0] | (bytes4(_bytes[1]) >> 8) | (bytes4(_bytes[2]) >> 16) | (bytes4(_bytes[3]) >> 24); } function memorySliceSelector(bytes memory _bytes) internal pure returns (bytes4 selector) { selector = _bytes[0] | (bytes4(_bytes[1]) >> 8) | (bytes4(_bytes[2]) >> 16) | (bytes4(_bytes[3]) >> 24); } function revertWithError(bytes memory _bytes, string memory _tracingInfo) internal pure { // 68: 32-location, 32-length, 4-ErrorSelector, UTF-8 err if (_bytes.length % 32 == 4) { bytes4 selector; assembly { selector := mload(add(0x20, _bytes)) } if (selector == 0x08c379a0) { // Function selector for Error(string) assembly { _bytes := add(_bytes, 68) } revert(string(abi.encodePacked(_tracingInfo, string(_bytes)))); } else { revert( string(abi.encodePacked(_tracingInfo, "NoErrorSelector")) ); } } else { revert( string(abi.encodePacked(_tracingInfo, "UnexpectedReturndata")) ); } } function returnError(bytes memory _bytes, string memory _tracingInfo) internal pure returns (string memory) { // 68: 32-location, 32-length, 4-ErrorSelector, UTF-8 err if (_bytes.length % 32 == 4) { bytes4 selector; assembly { selector := mload(add(0x20, _bytes)) } if (selector == 0x08c379a0) { // Function selector for Error(string) assembly { _bytes := add(_bytes, 68) } return string(abi.encodePacked(_tracingInfo, string(_bytes))); } else { return string(abi.encodePacked(_tracingInfo, "NoErrorSelector")); } } else { return string(abi.encodePacked(_tracingInfo, "UnexpectedReturndata")); } } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.19; import {GelatoBytes} from "./GelatoBytes.sol"; library GelatoCallUtils { using GelatoBytes for bytes; function revertingContractCall( address _contract, bytes memory _data, string memory _errorMsg ) internal returns (bytes memory returndata) { bool success; (success, returndata) = _contract.call(_data); // solhint-disable-next-line max-line-length // https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable/blob/f9b6fc3fdab7aca33a9cfa8837c5cd7f67e176be/contracts/utils/AddressUpgradeable.sol#L177 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(_contract), string(abi.encodePacked(_errorMsg, "Call to non contract")) ); } } else { returndata.revertWithError(_errorMsg); } } // solhint-disable-next-line max-line-length // https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable/blob/f9b6fc3fdab7aca33a9cfa8837c5cd7f67e176be/contracts/utils/AddressUpgradeable.sol#L36 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; } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.19; library GelatoString { function revertWithInfo(string memory _error, string memory _tracingInfo) internal pure { revert(string(abi.encodePacked(_tracingInfo, _error))); } function prefix(string memory _second, string memory _first) internal pure returns (string memory) { return string(abi.encodePacked(_first, _second)); } function suffix(string memory _first, string memory _second) internal pure returns (string memory) { return string(abi.encodePacked(_first, _second)); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.19; import {NATIVE_TOKEN} from "../constants/Tokens.sol"; import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import {Address} from "@openzeppelin/contracts/utils/Address.sol"; import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; library GelatoTokenUtils { function transfer( address _token, address _to, uint256 _amount ) internal { _token == NATIVE_TOKEN ? Address.sendValue(payable(_to), _amount) : SafeERC20.safeTransfer(IERC20(_token), _to, _amount); } function getBalance(address token, address user) internal view returns (uint256) { return token == NATIVE_TOKEN ? user.balance : IERC20(token).balanceOf(user); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.19; // Sponsored relay call struct SponsoredCall { uint256 chainId; address target; bytes data; } // Relay call with user signature verification for ERC 2771 compliance struct CallWithERC2771 { uint256 chainId; address target; bytes data; address user; uint256 userNonce; uint256 userDeadline; }
{ "evmVersion": "paris", "libraries": {}, "metadata": { "bytecodeHash": "ipfs", "useLiteralContent": true }, "optimizer": { "enabled": true, "runs": 999999 }, "remappings": [], "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"_gelato","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"target","type":"address"},{"indexed":true,"internalType":"bytes32","name":"correlationId","type":"bytes32"}],"name":"LogCallWithSyncFeeERC2771","type":"event"},{"inputs":[],"name":"CALL_WITH_SYNC_FEE_ERC2771_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"uint256","name":"chainId","type":"uint256"},{"internalType":"address","name":"target","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"},{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"userNonce","type":"uint256"},{"internalType":"uint256","name":"userDeadline","type":"uint256"}],"internalType":"struct CallWithERC2771","name":"_call","type":"tuple"},{"internalType":"address","name":"_feeToken","type":"address"},{"internalType":"bytes","name":"_userSignature","type":"bytes"},{"internalType":"bool","name":"_isRelayContext","type":"bool"},{"internalType":"bytes32","name":"_correlationId","type":"bytes32"}],"name":"callWithSyncFeeERC2771","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"gelato","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"userNonce","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"version","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"}]
Contract Creation Code
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Deployed Bytecode
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000003caca7b48d0573d793d3b0279b5f0029180e83b6
-----Decoded View---------------
Arg [0] : _gelato (address): 0x3CACa7b48D0573D793d3b0279b5F0029180E83b6
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000003caca7b48d0573d793d3b0279b5f0029180e83b6
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