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Latest 25 from a total of 260 transactions
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Aggregate3Value | 7116393 | 23 days ago | IN | 1 wei | 0.00976297 | ||||
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Aggregate3Value | 7116336 | 23 days ago | IN | 1 wei | 0.01529583 | ||||
Aggregate3Value | 7116071 | 23 days ago | IN | 1 wei | 0.02990004 | ||||
Aggregate3Value | 7116040 | 23 days ago | IN | 1 wei | 0.03309949 | ||||
Aggregate3Value | 7116015 | 23 days ago | IN | 1 wei | 0.02908615 | ||||
Aggregate3Value | 7115996 | 23 days ago | IN | 1 wei | 0.03461345 | ||||
Aggregate3Value | 7115717 | 23 days ago | IN | 1 wei | 0.05863386 | ||||
Aggregate3Value | 7115702 | 23 days ago | IN | 1 wei | 0.04329766 | ||||
Aggregate3Value | 7115682 | 23 days ago | IN | 1 wei | 0.04139845 | ||||
Aggregate3Value | 7115634 | 23 days ago | IN | 1 wei | 0.03291216 | ||||
Aggregate3Value | 7115620 | 23 days ago | IN | 1 wei | 0.02729266 | ||||
Aggregate3Value | 7115604 | 23 days ago | IN | 1 wei | 0.0230289 | ||||
Aggregate3Value | 7115593 | 23 days ago | IN | 1 wei | 0.02813508 | ||||
Aggregate3Value | 7115551 | 23 days ago | IN | 1 wei | 0.01590273 | ||||
Aggregate3Value | 7115498 | 23 days ago | IN | 1 wei | 0.01479595 | ||||
Aggregate3Value | 7115320 | 23 days ago | IN | 1 wei | 0.02564131 | ||||
Aggregate3Value | 7115309 | 23 days ago | IN | 1 wei | 0.02179305 | ||||
Aggregate3Value | 7115290 | 23 days ago | IN | 1 wei | 0.02260206 | ||||
Aggregate3Value | 7115282 | 23 days ago | IN | 1 wei | 0.0213826 | ||||
Aggregate3Value | 7115213 | 23 days ago | IN | 1 wei | 0.01639229 | ||||
Aggregate3Value | 7115208 | 23 days ago | IN | 1 wei | 0.01775012 | ||||
Aggregate3Value | 7115200 | 23 days ago | IN | 1 wei | 0.01911002 | ||||
Aggregate3Value | 7115193 | 23 days ago | IN | 1 wei | 0.01987448 | ||||
Aggregate3Value | 7115176 | 23 days ago | IN | 1 wei | 0.02343576 |
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Contract Name:
TrustedMulticallForwarder
Compiler Version
v0.8.20+commit.a1b79de6
Optimization Enabled:
Yes with 1000000 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity 0.8.20; import {ERC2771Forwarder, Address} from "../lib/openzeppelin-contracts/contracts/metatx/ERC2771Forwarder.sol"; /* solhint-disable meta-transactions/no-msg-sender */ /// @title TrustedMulticallForwarder /// @notice Aggregate results from multiple function calls /// @dev Derived from Multicall3 /// @dev Modified for support to bubble errors /// @dev Multicall & Multicall2 backwards-compatible /// @dev Aggregate methods are marked `payable` to save 24 gas per call /// @dev Includes ERC-2771 trusted forwarder functionality /// @author Michael Elliot <[email protected]> /// @author Joshua Levine <[email protected]> /// @author Nick Johnson <[email protected]> /// @author Andreas Bigger <[email protected]> /// @author Matt Solomon <[email protected]> /// @author Daniel Beal <[email protected]> /// @author Noah Litvin <[email protected]> /// @author Jared Borders <[email protected]> contract TrustedMulticallForwarder is ERC2771Forwarder { struct Call { address target; bytes callData; } struct Call3 { address target; bool requireSuccess; bytes callData; } struct Call3Value { address target; bool requireSuccess; uint256 value; bytes callData; } struct Result { bool success; bytes returnData; } constructor() ERC2771Forwarder("trusted-multicall-forwarder") {} /// @notice Backwards-compatible call aggregation with Multicall /// @param calls An array of Call structs /// @return blockNumber The block number where the calls were executed /// @return returnData An array of bytes containing the responses function aggregate( Call[] calldata calls ) public returns (uint256 blockNumber, bytes[] memory returnData) { blockNumber = block.number; uint256 length = calls.length; returnData = new bytes[](length); Call calldata call; for (uint256 i = 0; i < length; ) { bool success; call = calls[i]; (success, returnData[i]) = call.target.call( abi.encodePacked(call.callData, msg.sender) ); if (!success) { bytes memory revertData = returnData[i]; uint256 len = revertData.length; assembly { revert(add(revertData, 0x20), len) } } unchecked { ++i; } } } /// @notice Backwards-compatible with Multicall2 /// @notice Aggregate calls without requiring success /// @param requireSuccess If true, require all calls to succeed /// @param calls An array of Call structs /// @return returnData An array of Result structs function tryAggregate( bool requireSuccess, Call[] calldata calls ) public returns (Result[] memory returnData) { uint256 length = calls.length; returnData = new Result[](length); Call calldata call; for (uint256 i = 0; i < length; ) { Result memory result = returnData[i]; call = calls[i]; (result.success, result.returnData) = call.target.call( abi.encodePacked(call.callData, msg.sender) ); if (requireSuccess && !result.success) { bytes memory revertData = result.returnData; uint256 len = revertData.length; assembly { revert(add(revertData, 0x20), len) } } unchecked { ++i; } } } /// @notice Backwards-compatible with Multicall2 /// @notice Aggregate calls and allow failures using tryAggregate /// @param calls An array of Call structs /// @return blockNumber The block number where the calls were executed /// @return blockHash The hash of the block where the calls were executed /// @return returnData An array of Result structs function tryBlockAndAggregate( bool requireSuccess, Call[] calldata calls ) public payable returns (uint256 blockNumber, bytes32 blockHash, Result[] memory returnData) { blockNumber = block.number; blockHash = blockhash(block.number); returnData = tryAggregate(requireSuccess, calls); } /// @notice Backwards-compatible with Multicall2 /// @notice Aggregate calls and allow failures using tryAggregate /// @param calls An array of Call structs /// @return blockNumber The block number where the calls were executed /// @return blockHash The hash of the block where the calls were executed /// @return returnData An array of Result structs function blockAndAggregate( Call[] calldata calls ) public payable returns (uint256 blockNumber, bytes32 blockHash, Result[] memory returnData) { (blockNumber, blockHash, returnData) = tryBlockAndAggregate(true, calls); } /// @notice Aggregate calls, ensuring each returns success if required /// @param calls An array of Call3 structs /// @return returnData An array of Result structs function aggregate3( Call3[] calldata calls ) public payable returns (Result[] memory returnData) { uint256 length = calls.length; returnData = new Result[](length); Call3 calldata calli; for (uint256 i = 0; i < length; ) { Result memory result = returnData[i]; calli = calls[i]; (result.success, result.returnData) = calli.target.call( abi.encodePacked(calli.callData, msg.sender) ); if (calli.requireSuccess && !result.success) { bytes memory revertData = result.returnData; uint256 len = revertData.length; assembly { revert(add(revertData, 0x20), len) } } unchecked { ++i; } } } /// @notice Aggregate calls with a msg value /// @notice Reverts if msg.value is less than the sum of the call values /// @param calls An array of Call3Value structs /// @return returnData An array of Result structs function aggregate3Value( Call3Value[] calldata calls ) public payable returns (Result[] memory returnData) { uint256 valAccumulator; uint256 length = calls.length; returnData = new Result[](length); Call3Value calldata calli; for (uint256 i = 0; i < length; ) { Result memory result = returnData[i]; calli = calls[i]; uint256 val = calli.value; // Humanity will be a Type V Kardashev Civilization before this overflows - andreas // ~ 10^25 Wei in existence << ~ 10^76 size uint fits in a uint256 unchecked { valAccumulator += val; } (result.success, result.returnData) = calli.target.call{value: val}( abi.encodePacked(calli.callData, msg.sender) ); if (calli.requireSuccess && !result.success) { bytes memory revertData = result.returnData; uint256 len = revertData.length; assembly { revert(add(revertData, 0x20), len) } } unchecked { ++i; } } // Finally, make sure the msg.value == SUM(call[0...i].value) if (msg.value != valAccumulator) { revert ERC2771ForwarderMismatchedValue(valAccumulator, msg.value); } } /// @notice Aggregate ForwardRequestData objects /// @notice Reverts if msg.value does not equal the sum of the call values /// @notice Reverts if the msg.sender is the zero address /// @param requests An array of ForwardRequestData structs /// @return returnData An array of Result structs function executeBatch( ForwardRequestData[] calldata requests ) public payable returns (Result[] memory returnData) { uint256 length = requests.length; returnData = new Result[](length); ForwardRequestData calldata req; uint256 requestsValue; uint256 refundValue; for (uint256 i; i < length; ) { Result memory result = returnData[i]; req = requests[i]; requestsValue += requests[i].value; (bool isTrustedForwarder, bool active, bool signerMatch, address signer) = _validate( req ); if (isTrustedForwarder && signerMatch && active) { // Nonce should be used before the call to prevent reusing by reentrancy uint256 currentNonce = _useNonce(signer); (result.success, result.returnData) = req.to.call{value: req.value, gas: req.gas}( abi.encodePacked(req.data, req.from) ); /// @dev see ERC2771Forwarder._checkForwardedGas() for further details if (gasleft() < req.gas / 63) { assembly { invalid() } } emit ExecutedForwardRequest(signer, currentNonce, result.success); } /// @notice If the call was not successful, we refund the value to the msg.sender /// @dev unsuccessful calls are never reverted if (!result.success) { refundValue += requests[i].value; } unchecked { ++i; } } // The batch should revert if there's a mismatched msg.value provided // to avoid request value tampering if (requestsValue != msg.value) { revert ERC2771ForwarderMismatchedValue(requestsValue, msg.value); } // Some requests with value were invalid (possibly due to frontrunning). // To avoid leaving ETH in the contract this value is refunded. if (refundValue != 0) { // We know msg.sender != address(0) && requestsValue == msg.value // meaning we can ensure refundValue is not taken from the original contract's balance // and msg.sender is a known account. Address.sendValue(payable(msg.sender), refundValue); } } /// @notice Returns the block hash for the given block number /// @param blockNumber The block number function getBlockHash(uint256 blockNumber) public view returns (bytes32 blockHash) { blockHash = blockhash(blockNumber); } /// @notice Returns the block number function getBlockNumber() public view returns (uint256 blockNumber) { blockNumber = block.number; } /// @notice Returns the block coinbase function getCurrentBlockCoinbase() public view returns (address coinbase) { coinbase = block.coinbase; } /// @notice Returns the block prevrandao function getPrevRandao() public view returns (uint256 prevrandao) { prevrandao = block.prevrandao; } /// @notice Returns the block gas limit function getCurrentBlockGasLimit() public view returns (uint256 gaslimit) { gaslimit = block.gaslimit; } /// @notice Returns the block timestamp function getCurrentBlockTimestamp() public view returns (uint256 timestamp) { timestamp = block.timestamp; } /// @notice Returns the (ETH) balance of a given address function getEthBalance(address addr) public view returns (uint256 balance) { balance = addr.balance; } /// @notice Returns the block hash of the last block function getLastBlockHash() public view returns (bytes32 blockHash) { unchecked { blockHash = blockhash(block.number - 1); } } /// @notice Gets the base fee of the given block /// @notice Can revert if the BASEFEE opcode is not implemented by the given chain function getBasefee() public view returns (uint256 basefee) { basefee = block.basefee; } /// @notice Returns the chain id function getChainId() public view returns (uint256 chainid) { chainid = block.chainid; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC5267.sol) pragma solidity ^0.8.20; interface IERC5267 { /** * @dev MAY be emitted to signal that the domain could have changed. */ event EIP712DomainChanged(); /** * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712 * signature. */ function eip712Domain() external view returns ( bytes1 fields, string memory name, string memory version, uint256 chainId, address verifyingContract, bytes32 salt, uint256[] memory extensions ); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (metatx/ERC2771Context.sol) pragma solidity ^0.8.20; import {Context} from "../utils/Context.sol"; /** * @dev Context variant with ERC2771 support. * * WARNING: Avoid using this pattern in contracts that rely in a specific calldata length as they'll * be affected by any forwarder whose `msg.data` is suffixed with the `from` address according to the ERC2771 * specification adding the address size in bytes (20) to the calldata size. An example of an unexpected * behavior could be an unintended fallback (or another function) invocation while trying to invoke the `receive` * function only accessible if `msg.data.length == 0`. */ abstract contract ERC2771Context is Context { /// @custom:oz-upgrades-unsafe-allow state-variable-immutable address private immutable _trustedForwarder; /** * @dev Initializes the contract with a trusted forwarder, which will be able to * invoke functions on this contract on behalf of other accounts. * * NOTE: The trusted forwarder can be replaced by overriding {trustedForwarder}. */ /// @custom:oz-upgrades-unsafe-allow constructor constructor(address trustedForwarder_) { _trustedForwarder = trustedForwarder_; } /** * @dev Returns the address of the trusted forwarder. */ function trustedForwarder() public view virtual returns (address) { return _trustedForwarder; } /** * @dev Indicates whether any particular address is the trusted forwarder. */ function isTrustedForwarder(address forwarder) public view virtual returns (bool) { return forwarder == trustedForwarder(); } /** * @dev Override for `msg.sender`. Defaults to the original `msg.sender` whenever * a call is not performed by the trusted forwarder or the calldata length is less than * 20 bytes (an address length). */ function _msgSender() internal view virtual override returns (address sender) { if (isTrustedForwarder(msg.sender) && msg.data.length >= 20) { // The assembly code is more direct than the Solidity version using `abi.decode`. /// @solidity memory-safe-assembly assembly { sender := shr(96, calldataload(sub(calldatasize(), 20))) } } else { return super._msgSender(); } } /** * @dev Override for `msg.data`. Defaults to the original `msg.data` whenever * a call is not performed by the trusted forwarder or the calldata length is less than * 20 bytes (an address length). */ function _msgData() internal view virtual override returns (bytes calldata) { if (isTrustedForwarder(msg.sender) && msg.data.length >= 20) { return msg.data[:msg.data.length - 20]; } else { return super._msgData(); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (metatx/ERC2771Forwarder.sol) pragma solidity ^0.8.20; import {ERC2771Context} from "./ERC2771Context.sol"; import {ECDSA} from "../utils/cryptography/ECDSA.sol"; import {EIP712} from "../utils/cryptography/EIP712.sol"; import {Nonces} from "../utils/Nonces.sol"; import {Address} from "../utils/Address.sol"; /** * @dev A forwarder compatible with ERC2771 contracts. See {ERC2771Context}. * * This forwarder operates on forward requests that include: * * * `from`: An address to operate on behalf of. It is required to be equal to the request signer. * * `to`: The address that should be called. * * `value`: The amount of native token to attach with the requested call. * * `gas`: The amount of gas limit that will be forwarded with the requested call. * * `nonce`: A unique transaction ordering identifier to avoid replayability and request invalidation. * * `deadline`: A timestamp after which the request is not executable anymore. * * `data`: Encoded `msg.data` to send with the requested call. * * Relayers are able to submit batches if they are processing a high volume of requests. With high * throughput, relayers may run into limitations of the chain such as limits on the number of * transactions in the mempool. In these cases the recommendation is to distribute the load among * multiple accounts. * * NOTE: Batching requests includes an optional refund for unused `msg.value` that is achieved by * performing a call with empty calldata. While this is within the bounds of ERC-2771 compliance, * if the refund receiver happens to consider the forwarder a trusted forwarder, it MUST properly * handle `msg.data.length == 0`. `ERC2771Context` in OpenZeppelin Contracts versions prior to 4.9.3 * do not handle this properly. * * ==== Security Considerations * * If a relayer submits a forward request, it should be willing to pay up to 100% of the gas amount * specified in the request. This contract does not implement any kind of retribution for this gas, * and it is assumed that there is an out of band incentive for relayers to pay for execution on * behalf of signers. Often, the relayer is operated by a project that will consider it a user * acquisition cost. * * By offering to pay for gas, relayers are at risk of having that gas used by an attacker toward * some other purpose that is not aligned with the expected out of band incentives. If you operate a * relayer, consider whitelisting target contracts and function selectors. When relaying ERC-721 or * ERC-1155 transfers specifically, consider rejecting the use of the `data` field, since it can be * used to execute arbitrary code. */ contract ERC2771Forwarder is EIP712, Nonces { using ECDSA for bytes32; struct ForwardRequestData { address from; address to; uint256 value; uint256 gas; uint48 deadline; bytes data; bytes signature; } bytes32 internal constant _FORWARD_REQUEST_TYPEHASH = keccak256( "ForwardRequest(address from,address to,uint256 value,uint256 gas,uint256 nonce,uint48 deadline,bytes data)" ); /** * @dev Emitted when a `ForwardRequest` is executed. * * NOTE: An unsuccessful forward request could be due to an invalid signature, an expired deadline, * or simply a revert in the requested call. The contract guarantees that the relayer is not able to force * the requested call to run out of gas. */ event ExecutedForwardRequest(address indexed signer, uint256 nonce, bool success); /** * @dev The request `from` doesn't match with the recovered `signer`. */ error ERC2771ForwarderInvalidSigner(address signer, address from); /** * @dev The `requestedValue` doesn't match with the available `msgValue`. */ error ERC2771ForwarderMismatchedValue(uint256 requestedValue, uint256 msgValue); /** * @dev The request `deadline` has expired. */ error ERC2771ForwarderExpiredRequest(uint48 deadline); /** * @dev The request target doesn't trust the `forwarder`. */ error ERC2771UntrustfulTarget(address target, address forwarder); /** * @dev See {EIP712-constructor}. */ constructor(string memory name) EIP712(name, "1") {} /** * @dev Returns `true` if a request is valid for a provided `signature` at the current block timestamp. * * A transaction is considered valid when the target trusts this forwarder, the request hasn't expired * (deadline is not met), and the signer matches the `from` parameter of the signed request. * * NOTE: A request may return false here but it won't cause {executeBatch} to revert if a refund * receiver is provided. */ function verify(ForwardRequestData calldata request) public view virtual returns (bool) { (bool isTrustedForwarder, bool active, bool signerMatch, ) = _validate(request); return isTrustedForwarder && active && signerMatch; } /** * @dev Executes a `request` on behalf of `signature`'s signer using the ERC-2771 protocol. The gas * provided to the requested call may not be exactly the amount requested, but the call will not run * out of gas. Will revert if the request is invalid or the call reverts, in this case the nonce is not consumed. * * Requirements: * * - The request value should be equal to the provided `msg.value`. * - The request should be valid according to {verify}. */ function execute(ForwardRequestData calldata request) public payable virtual { // We make sure that msg.value and request.value match exactly. // If the request is invalid or the call reverts, this whole function // will revert, ensuring value isn't stuck. if (msg.value != request.value) { revert ERC2771ForwarderMismatchedValue(request.value, msg.value); } if (!_execute(request, true)) { revert Address.FailedInnerCall(); } } /** * @dev Batch version of {execute} with optional refunding and atomic execution. * * In case a batch contains at least one invalid request (see {verify}), the * request will be skipped and the `refundReceiver` parameter will receive back the * unused requested value at the end of the execution. This is done to prevent reverting * the entire batch when a request is invalid or has already been submitted. * * If the `refundReceiver` is the `address(0)`, this function will revert when at least * one of the requests was not valid instead of skipping it. This could be useful if * a batch is required to get executed atomically (at least at the top-level). For example, * refunding (and thus atomicity) can be opt-out if the relayer is using a service that avoids * including reverted transactions. * * Requirements: * * - The sum of the requests' values should be equal to the provided `msg.value`. * - All of the requests should be valid (see {verify}) when `refundReceiver` is the zero address. * * NOTE: Setting a zero `refundReceiver` guarantees an all-or-nothing requests execution only for * the first-level forwarded calls. In case a forwarded request calls to a contract with another * subcall, the second-level call may revert without the top-level call reverting. */ function executeBatch( ForwardRequestData[] calldata requests, address payable refundReceiver ) public payable virtual { bool atomic = refundReceiver == address(0); uint256 requestsValue; uint256 refundValue; for (uint256 i; i < requests.length; ++i) { requestsValue += requests[i].value; bool success = _execute(requests[i], atomic); if (!success) { refundValue += requests[i].value; } } // The batch should revert if there's a mismatched msg.value provided // to avoid request value tampering if (requestsValue != msg.value) { revert ERC2771ForwarderMismatchedValue(requestsValue, msg.value); } // Some requests with value were invalid (possibly due to frontrunning). // To avoid leaving ETH in the contract this value is refunded. if (refundValue != 0) { // We know refundReceiver != address(0) && requestsValue == msg.value // meaning we can ensure refundValue is not taken from the original contract's balance // and refundReceiver is a known account. Address.sendValue(refundReceiver, refundValue); } } /** * @dev Validates if the provided request can be executed at current block timestamp with * the given `request.signature` on behalf of `request.signer`. */ function _validate( ForwardRequestData calldata request ) internal view virtual returns (bool isTrustedForwarder, bool active, bool signerMatch, address signer) { (bool isValid, address recovered) = _recoverForwardRequestSigner(request); return ( _isTrustedByTarget(request.to), request.deadline >= block.timestamp, isValid && recovered == request.from, recovered ); } /** * @dev Returns a tuple with the recovered the signer of an EIP712 forward request message hash * and a boolean indicating if the signature is valid. * * NOTE: The signature is considered valid if {ECDSA-tryRecover} indicates no recover error for it. */ function _recoverForwardRequestSigner( ForwardRequestData calldata request ) internal view virtual returns (bool, address) { (address recovered, ECDSA.RecoverError err, ) = _hashTypedDataV4( keccak256( abi.encode( _FORWARD_REQUEST_TYPEHASH, request.from, request.to, request.value, request.gas, nonces(request.from), request.deadline, keccak256(request.data) ) ) ).tryRecover(request.signature); return (err == ECDSA.RecoverError.NoError, recovered); } /** * @dev Validates and executes a signed request returning the request call `success` value. * * Internal function without msg.value validation. * * Requirements: * * - The caller must have provided enough gas to forward with the call. * - The request must be valid (see {verify}) if the `requireValidRequest` is true. * * Emits an {ExecutedForwardRequest} event. * * IMPORTANT: Using this function doesn't check that all the `msg.value` was sent, potentially * leaving value stuck in the contract. */ function _execute( ForwardRequestData calldata request, bool requireValidRequest ) internal virtual returns (bool success) { (bool isTrustedForwarder, bool active, bool signerMatch, address signer) = _validate(request); // Need to explicitly specify if a revert is required since non-reverting is default for // batches and reversion is opt-in since it could be useful in some scenarios if (requireValidRequest) { if (!isTrustedForwarder) { revert ERC2771UntrustfulTarget(request.to, address(this)); } if (!active) { revert ERC2771ForwarderExpiredRequest(request.deadline); } if (!signerMatch) { revert ERC2771ForwarderInvalidSigner(signer, request.from); } } // Ignore an invalid request because requireValidRequest = false if (isTrustedForwarder && signerMatch && active) { // Nonce should be used before the call to prevent reusing by reentrancy uint256 currentNonce = _useNonce(signer); uint256 reqGas = request.gas; address to = request.to; uint256 value = request.value; bytes memory data = abi.encodePacked(request.data, request.from); uint256 gasLeft; assembly { success := call(reqGas, to, value, add(data, 0x20), mload(data), 0, 0) gasLeft := gas() } _checkForwardedGas(gasLeft, request); emit ExecutedForwardRequest(signer, currentNonce, success); } } /** * @dev Returns whether the target trusts this forwarder. * * This function performs a static call to the target contract calling the * {ERC2771Context-isTrustedForwarder} function. */ function _isTrustedByTarget(address target) private view returns (bool) { bytes memory encodedParams = abi.encodeCall(ERC2771Context.isTrustedForwarder, (address(this))); bool success; uint256 returnSize; uint256 returnValue; /// @solidity memory-safe-assembly assembly { // Perform the staticcal and save the result in the scratch space. // | Location | Content | Content (Hex) | // |-----------|----------|--------------------------------------------------------------------| // | | | result ↓ | // | 0x00:0x1F | selector | 0x0000000000000000000000000000000000000000000000000000000000000001 | success := staticcall(gas(), target, add(encodedParams, 0x20), mload(encodedParams), 0, 0x20) returnSize := returndatasize() returnValue := mload(0) } return success && returnSize >= 0x20 && returnValue > 0; } /** * @dev Checks if the requested gas was correctly forwarded to the callee. * * As a consequence of https://eips.ethereum.org/EIPS/eip-150[EIP-150]: * - At most `gasleft() - floor(gasleft() / 64)` is forwarded to the callee. * - At least `floor(gasleft() / 64)` is kept in the caller. * * It reverts consuming all the available gas if the forwarded gas is not the requested gas. * * IMPORTANT: The `gasLeft` parameter should be measured exactly at the end of the forwarded call. * Any gas consumed in between will make room for bypassing this check. */ function _checkForwardedGas(uint256 gasLeft, ForwardRequestData calldata request) private pure { // To avoid insufficient gas griefing attacks, as referenced in https://ronan.eth.limo/blog/ethereum-gas-dangers/ // // A malicious relayer can attempt to shrink the gas forwarded so that the underlying call reverts out-of-gas // but the forwarding itself still succeeds. In order to make sure that the subcall received sufficient gas, // we will inspect gasleft() after the forwarding. // // Let X be the gas available before the subcall, such that the subcall gets at most X * 63 / 64. // We can't know X after CALL dynamic costs, but we want it to be such that X * 63 / 64 >= req.gas. // Let Y be the gas used in the subcall. gasleft() measured immediately after the subcall will be gasleft() = X - Y. // If the subcall ran out of gas, then Y = X * 63 / 64 and gasleft() = X - Y = X / 64. // Under this assumption req.gas / 63 > gasleft() is true is true if and only if // req.gas / 63 > X / 64, or equivalently req.gas > X * 63 / 64. // This means that if the subcall runs out of gas we are able to detect that insufficient gas was passed. // // We will now also see that req.gas / 63 > gasleft() implies that req.gas >= X * 63 / 64. // The contract guarantees Y <= req.gas, thus gasleft() = X - Y >= X - req.gas. // - req.gas / 63 > gasleft() // - req.gas / 63 >= X - req.gas // - req.gas >= X * 63 / 64 // In other words if req.gas < X * 63 / 64 then req.gas / 63 <= gasleft(), thus if the relayer behaves honestly // the forwarding does not revert. if (gasLeft < request.gas / 63) { // We explicitly trigger invalid opcode to consume all gas and bubble-up the effects, since // neither revert or assert consume all gas since Solidity 0.8.20 // https://docs.soliditylang.org/en/v0.8.20/control-structures.html#panic-via-assert-and-error-via-require /// @solidity memory-safe-assembly assembly { invalid() } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol) pragma solidity ^0.8.20; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev The ETH balance of the account is not enough to perform the operation. */ error AddressInsufficientBalance(address account); /** * @dev There's no code at `target` (it is not a contract). */ error AddressEmptyCode(address target); /** * @dev A call to an address target failed. The target may have reverted. */ error FailedInnerCall(); /** * @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/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { if (address(this).balance < amount) { revert AddressInsufficientBalance(address(this)); } (bool success, ) = recipient.call{value: amount}(""); if (!success) { revert FailedInnerCall(); } } /** * @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 or custom error, it is bubbled * up by this function (like regular Solidity function calls). However, if * the call reverted with no returned reason, this function reverts with a * {FailedInnerCall} error. * * 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. */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0); } /** * @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`. */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { if (address(this).balance < value) { revert AddressInsufficientBalance(address(this)); } (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an * unsuccessful call. */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata ) internal view returns (bytes memory) { if (!success) { _revert(returndata); } else { // only check if target is a contract if the call was successful and the return data is empty // otherwise we already know that it was a contract if (returndata.length == 0 && target.code.length == 0) { revert AddressEmptyCode(target); } return returndata; } } /** * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the * revert reason or with a default {FailedInnerCall} error. */ function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) { if (!success) { _revert(returndata); } else { return returndata; } } /** * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}. */ function _revert(bytes memory returndata) 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 FailedInnerCall(); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/Context.sol) pragma solidity ^0.8.20; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/Nonces.sol) pragma solidity ^0.8.20; /** * @dev Provides tracking nonces for addresses. Nonces will only increment. */ abstract contract Nonces { /** * @dev The nonce used for an `account` is not the expected current nonce. */ error InvalidAccountNonce(address account, uint256 currentNonce); mapping(address account => uint256) private _nonces; /** * @dev Returns the next unused nonce for an address. */ function nonces(address owner) public view virtual returns (uint256) { return _nonces[owner]; } /** * @dev Consumes a nonce. * * Returns the current value and increments nonce. */ function _useNonce(address owner) internal virtual returns (uint256) { // For each account, the nonce has an initial value of 0, can only be incremented by one, and cannot be // decremented or reset. This guarantees that the nonce never overflows. unchecked { // It is important to do x++ and not ++x here. return _nonces[owner]++; } } /** * @dev Same as {_useNonce} but checking that `nonce` is the next valid for `owner`. */ function _useCheckedNonce(address owner, uint256 nonce) internal virtual { uint256 current = _useNonce(owner); if (nonce != current) { revert InvalidAccountNonce(owner, current); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/ShortStrings.sol) pragma solidity ^0.8.20; import {StorageSlot} from "./StorageSlot.sol"; // | string | 0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA | // | length | 0x BB | type ShortString is bytes32; /** * @dev This library provides functions to convert short memory strings * into a `ShortString` type that can be used as an immutable variable. * * Strings of arbitrary length can be optimized using this library if * they are short enough (up to 31 bytes) by packing them with their * length (1 byte) in a single EVM word (32 bytes). Additionally, a * fallback mechanism can be used for every other case. * * Usage example: * * ```solidity * contract Named { * using ShortStrings for *; * * ShortString private immutable _name; * string private _nameFallback; * * constructor(string memory contractName) { * _name = contractName.toShortStringWithFallback(_nameFallback); * } * * function name() external view returns (string memory) { * return _name.toStringWithFallback(_nameFallback); * } * } * ``` */ library ShortStrings { // Used as an identifier for strings longer than 31 bytes. bytes32 private constant FALLBACK_SENTINEL = 0x00000000000000000000000000000000000000000000000000000000000000FF; error StringTooLong(string str); error InvalidShortString(); /** * @dev Encode a string of at most 31 chars into a `ShortString`. * * This will trigger a `StringTooLong` error is the input string is too long. */ function toShortString(string memory str) internal pure returns (ShortString) { bytes memory bstr = bytes(str); if (bstr.length > 31) { revert StringTooLong(str); } return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length)); } /** * @dev Decode a `ShortString` back to a "normal" string. */ function toString(ShortString sstr) internal pure returns (string memory) { uint256 len = byteLength(sstr); // using `new string(len)` would work locally but is not memory safe. string memory str = new string(32); /// @solidity memory-safe-assembly assembly { mstore(str, len) mstore(add(str, 0x20), sstr) } return str; } /** * @dev Return the length of a `ShortString`. */ function byteLength(ShortString sstr) internal pure returns (uint256) { uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF; if (result > 31) { revert InvalidShortString(); } return result; } /** * @dev Encode a string into a `ShortString`, or write it to storage if it is too long. */ function toShortStringWithFallback(string memory value, string storage store) internal returns (ShortString) { if (bytes(value).length < 32) { return toShortString(value); } else { StorageSlot.getStringSlot(store).value = value; return ShortString.wrap(FALLBACK_SENTINEL); } } /** * @dev Decode a string that was encoded to `ShortString` or written to storage using {setWithFallback}. */ function toStringWithFallback(ShortString value, string storage store) internal pure returns (string memory) { if (ShortString.unwrap(value) != FALLBACK_SENTINEL) { return toString(value); } else { return store; } } /** * @dev Return the length of a string that was encoded to `ShortString` or written to storage using * {setWithFallback}. * * WARNING: This will return the "byte length" of the string. This may not reflect the actual length in terms of * actual characters as the UTF-8 encoding of a single character can span over multiple bytes. */ function byteLengthWithFallback(ShortString value, string storage store) internal view returns (uint256) { if (ShortString.unwrap(value) != FALLBACK_SENTINEL) { return byteLength(value); } else { return bytes(store).length; } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/StorageSlot.sol) // This file was procedurally generated from scripts/generate/templates/StorageSlot.js. pragma solidity ^0.8.20; /** * @dev Library for reading and writing primitive types to specific storage slots. * * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts. * This library helps with reading and writing to such slots without the need for inline assembly. * * The functions in this library return Slot structs that contain a `value` member that can be used to read or write. * * Example usage to set ERC1967 implementation slot: * ```solidity * contract ERC1967 { * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; * * function _getImplementation() internal view returns (address) { * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; * } * * function _setImplementation(address newImplementation) internal { * require(newImplementation.code.length > 0); * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; * } * } * ``` */ library StorageSlot { struct AddressSlot { address value; } struct BooleanSlot { bool value; } struct Bytes32Slot { bytes32 value; } struct Uint256Slot { uint256 value; } struct StringSlot { string value; } struct BytesSlot { bytes value; } /** * @dev Returns an `AddressSlot` with member `value` located at `slot`. */ function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `BooleanSlot` with member `value` located at `slot`. */ function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Bytes32Slot` with member `value` located at `slot`. */ function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Uint256Slot` with member `value` located at `slot`. */ function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `StringSlot` with member `value` located at `slot`. */ function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `StringSlot` representation of the string storage pointer `store`. */ function getStringSlot(string storage store) internal pure returns (StringSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := store.slot } } /** * @dev Returns an `BytesSlot` with member `value` located at `slot`. */ function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`. */ function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := store.slot } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/Strings.sol) pragma solidity ^0.8.20; import {Math} from "./math/Math.sol"; import {SignedMath} from "./math/SignedMath.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant HEX_DIGITS = "0123456789abcdef"; uint8 private constant ADDRESS_LENGTH = 20; /** * @dev The `value` string doesn't fit in the specified `length`. */ error StringsInsufficientHexLength(uint256 value, uint256 length); /** * @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), HEX_DIGITS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `int256` to its ASCII `string` decimal representation. */ function toStringSigned(int256 value) internal pure returns (string memory) { return string.concat(value < 0 ? "-" : "", toString(SignedMath.abs(value))); } /** * @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) { uint256 localValue = value; bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = HEX_DIGITS[localValue & 0xf]; localValue >>= 4; } if (localValue != 0) { revert StringsInsufficientHexLength(value, length); } 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); } /** * @dev Returns true if the two strings are equal. */ function equal(string memory a, string memory b) internal pure returns (bool) { return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/ECDSA.sol) pragma solidity ^0.8.20; /** * @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 } /** * @dev The signature derives the `address(0)`. */ error ECDSAInvalidSignature(); /** * @dev The signature has an invalid length. */ error ECDSAInvalidSignatureLength(uint256 length); /** * @dev The signature has an S value that is in the upper half order. */ error ECDSAInvalidSignatureS(bytes32 s); /** * @dev Returns the address that signed a hashed message (`hash`) with `signature` or an error. This will not * return address(0) without also returning an error description. Errors are documented using an enum (error type) * and a bytes32 providing additional information about the error. * * If no error is returned, then the address can be used for verification purposes. * * The `ecrecover` EVM precompile 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 {MessageHashUtils-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] */ function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError, bytes32) { 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, bytes32(signature.length)); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature`. This address can then be used for verification purposes. * * The `ecrecover` EVM precompile 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 {MessageHashUtils-toEthSignedMessageHash} on it. */ function recover(bytes32 hash, bytes memory signature) internal pure returns (address) { (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, signature); _throwError(error, errorArg); 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] */ function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError, bytes32) { unchecked { bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff); // We do not check for an overflow here since the shift operation results in 0 or 1. 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. */ function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) { (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, r, vs); _throwError(error, errorArg); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `v`, * `r` and `s` signature fields separately. */ function tryRecover( bytes32 hash, uint8 v, bytes32 r, bytes32 s ) internal pure returns (address, RecoverError, bytes32) { // 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, s); } // 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, bytes32(0)); } return (signer, RecoverError.NoError, bytes32(0)); } /** * @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, bytes32 errorArg) = tryRecover(hash, v, r, s); _throwError(error, errorArg); return recovered; } /** * @dev Optionally reverts with the corresponding custom error according to the `error` argument provided. */ function _throwError(RecoverError error, bytes32 errorArg) private pure { if (error == RecoverError.NoError) { return; // no error: do nothing } else if (error == RecoverError.InvalidSignature) { revert ECDSAInvalidSignature(); } else if (error == RecoverError.InvalidSignatureLength) { revert ECDSAInvalidSignatureLength(uint256(errorArg)); } else if (error == RecoverError.InvalidSignatureS) { revert ECDSAInvalidSignatureS(errorArg); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/EIP712.sol) pragma solidity ^0.8.20; import {MessageHashUtils} from "./MessageHashUtils.sol"; import {ShortStrings, ShortString} from "../ShortStrings.sol"; import {IERC5267} from "../../interfaces/IERC5267.sol"; /** * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data. * * The encoding scheme specified in the EIP requires a domain separator and a hash of the typed structured data, whose * encoding is very generic and therefore its implementation in Solidity is not feasible, thus this contract * does not implement the encoding itself. Protocols need to implement the type-specific encoding they need in order to * produce the hash of their typed data using a combination of `abi.encode` and `keccak256`. * * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA * ({_hashTypedDataV4}). * * The implementation of the domain separator was designed to be as efficient as possible while still properly updating * the chain id to protect against replay attacks on an eventual fork of the chain. * * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask]. * * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain * separator of the implementation contract. This will cause the {_domainSeparatorV4} function to always rebuild the * separator from the immutable values, which is cheaper than accessing a cached version in cold storage. * * @custom:oz-upgrades-unsafe-allow state-variable-immutable */ abstract contract EIP712 is IERC5267 { using ShortStrings for *; bytes32 private constant TYPE_HASH = keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"); // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to // invalidate the cached domain separator if the chain id changes. bytes32 private immutable _cachedDomainSeparator; uint256 private immutable _cachedChainId; address private immutable _cachedThis; bytes32 private immutable _hashedName; bytes32 private immutable _hashedVersion; ShortString private immutable _name; ShortString private immutable _version; string private _nameFallback; string private _versionFallback; /** * @dev Initializes the domain separator and parameter caches. * * The meaning of `name` and `version` is specified in * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]: * * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol. * - `version`: the current major version of the signing domain. * * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart * contract upgrade]. */ constructor(string memory name, string memory version) { _name = name.toShortStringWithFallback(_nameFallback); _version = version.toShortStringWithFallback(_versionFallback); _hashedName = keccak256(bytes(name)); _hashedVersion = keccak256(bytes(version)); _cachedChainId = block.chainid; _cachedDomainSeparator = _buildDomainSeparator(); _cachedThis = address(this); } /** * @dev Returns the domain separator for the current chain. */ function _domainSeparatorV4() internal view returns (bytes32) { if (address(this) == _cachedThis && block.chainid == _cachedChainId) { return _cachedDomainSeparator; } else { return _buildDomainSeparator(); } } function _buildDomainSeparator() private view returns (bytes32) { return keccak256(abi.encode(TYPE_HASH, _hashedName, _hashedVersion, block.chainid, address(this))); } /** * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this * function returns the hash of the fully encoded EIP712 message for this domain. * * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example: * * ```solidity * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode( * keccak256("Mail(address to,string contents)"), * mailTo, * keccak256(bytes(mailContents)) * ))); * address signer = ECDSA.recover(digest, signature); * ``` */ function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) { return MessageHashUtils.toTypedDataHash(_domainSeparatorV4(), structHash); } /** * @dev See {IERC-5267}. */ function eip712Domain() public view virtual returns ( bytes1 fields, string memory name, string memory version, uint256 chainId, address verifyingContract, bytes32 salt, uint256[] memory extensions ) { return ( hex"0f", // 01111 _EIP712Name(), _EIP712Version(), block.chainid, address(this), bytes32(0), new uint256[](0) ); } /** * @dev The name parameter for the EIP712 domain. * * NOTE: By default this function reads _name which is an immutable value. * It only reads from storage if necessary (in case the value is too large to fit in a ShortString). */ // solhint-disable-next-line func-name-mixedcase function _EIP712Name() internal view returns (string memory) { return _name.toStringWithFallback(_nameFallback); } /** * @dev The version parameter for the EIP712 domain. * * NOTE: By default this function reads _version which is an immutable value. * It only reads from storage if necessary (in case the value is too large to fit in a ShortString). */ // solhint-disable-next-line func-name-mixedcase function _EIP712Version() internal view returns (string memory) { return _version.toStringWithFallback(_versionFallback); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/MessageHashUtils.sol) pragma solidity ^0.8.20; import {Strings} from "../Strings.sol"; /** * @dev Signature message hash utilities for producing digests to be consumed by {ECDSA} recovery or signing. * * The library provides methods for generating a hash of a message that conforms to the * https://eips.ethereum.org/EIPS/eip-191[EIP 191] and https://eips.ethereum.org/EIPS/eip-712[EIP 712] * specifications. */ library MessageHashUtils { /** * @dev Returns the keccak256 digest of an EIP-191 signed data with version * `0x45` (`personal_sign` messages). * * The digest is calculated by prefixing a bytes32 `messageHash` with * `"\x19Ethereum Signed Message:\n32"` and hashing the result. It corresponds with the * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method. * * NOTE: The `messageHash` parameter is intended to be the result of hashing a raw message with * keccak256, although any bytes32 value can be safely used because the final digest will * be re-hashed. * * See {ECDSA-recover}. */ function toEthSignedMessageHash(bytes32 messageHash) internal pure returns (bytes32 digest) { /// @solidity memory-safe-assembly assembly { mstore(0x00, "\x19Ethereum Signed Message:\n32") // 32 is the bytes-length of messageHash mstore(0x1c, messageHash) // 0x1c (28) is the length of the prefix digest := keccak256(0x00, 0x3c) // 0x3c is the length of the prefix (0x1c) + messageHash (0x20) } } /** * @dev Returns the keccak256 digest of an EIP-191 signed data with version * `0x45` (`personal_sign` messages). * * The digest is calculated by prefixing an arbitrary `message` with * `"\x19Ethereum Signed Message:\n" + len(message)` and hashing the result. It corresponds with the * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method. * * See {ECDSA-recover}. */ function toEthSignedMessageHash(bytes memory message) internal pure returns (bytes32) { return keccak256(bytes.concat("\x19Ethereum Signed Message:\n", bytes(Strings.toString(message.length)), message)); } /** * @dev Returns the keccak256 digest of an EIP-191 signed data with version * `0x00` (data with intended validator). * * The digest is calculated by prefixing an arbitrary `data` with `"\x19\x00"` and the intended * `validator` address. Then hashing the result. * * See {ECDSA-recover}. */ function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) { return keccak256(abi.encodePacked(hex"19_00", validator, data)); } /** * @dev Returns the keccak256 digest of an EIP-712 typed data (EIP-191 version `0x01`). * * The digest is calculated from a `domainSeparator` and a `structHash`, by prefixing them with * `\x19\x01` and hashing the result. It corresponds to the hash signed by the * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] JSON-RPC method as part of EIP-712. * * See {ECDSA-recover}. */ function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 digest) { /// @solidity memory-safe-assembly assembly { let ptr := mload(0x40) mstore(ptr, hex"19_01") mstore(add(ptr, 0x02), domainSeparator) mstore(add(ptr, 0x22), structHash) digest := keccak256(ptr, 0x42) } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol) pragma solidity ^0.8.20; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { /** * @dev Muldiv operation overflow. */ error MathOverflowedMulDiv(); enum Rounding { Floor, // Toward negative infinity Ceil, // Toward positive infinity Trunc, // Toward zero Expand // Away from zero } /** * @dev Returns the addition of two unsigned integers, with an overflow flag. */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the subtraction of two unsigned integers, with an overflow flag. */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Returns the 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 towards infinity instead * of rounding towards zero. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { if (b == 0) { // Guarantee the same behavior as in a regular Solidity division. return a / b; } // (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 = x * y; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { // Solidity will revert if denominator == 0, unlike the div opcode on its own. // The surrounding unchecked block does not change this fact. // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic. return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. if (denominator <= prod1) { revert MathOverflowedMulDiv(); } /////////////////////////////////////////////// // 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. uint256 twos = denominator & (0 - denominator); 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 (unsignedRoundsUp(rounding) && 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 * towards zero. * * 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 + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2 of a positive value rounded towards zero. * 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 + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10 of a positive value rounded towards zero. * 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 + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0); } } /** * @dev Return the log in base 256 of a positive value rounded towards zero. * 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 256, 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 + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0); } } /** * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers. */ function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) { return uint8(rounding) % 2 == 1; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SignedMath.sol) pragma solidity ^0.8.20; /** * @dev Standard signed math utilities missing in the Solidity language. */ library SignedMath { /** * @dev Returns the largest of two signed numbers. */ function max(int256 a, int256 b) internal pure returns (int256) { return a > b ? a : b; } /** * @dev Returns the smallest of two signed numbers. */ function min(int256 a, int256 b) internal pure returns (int256) { return a < b ? a : b; } /** * @dev Returns the average of two signed numbers without overflow. * The result is rounded towards zero. */ function average(int256 a, int256 b) internal pure returns (int256) { // Formula from the book "Hacker's Delight" int256 x = (a & b) + ((a ^ b) >> 1); return x + (int256(uint256(x) >> 255) & (a ^ b)); } /** * @dev Returns the absolute unsigned value of a signed value. */ function abs(int256 n) internal pure returns (uint256) { unchecked { // must be unchecked in order to support `n = type(int256).min` return uint256(n >= 0 ? n : -n); } } }
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TrustedMulticallForwarder.Call[]","name":"calls","type":"tuple[]"}],"name":"aggregate","outputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"},{"internalType":"bytes[]","name":"returnData","type":"bytes[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bool","name":"requireSuccess","type":"bool"},{"internalType":"bytes","name":"callData","type":"bytes"}],"internalType":"struct TrustedMulticallForwarder.Call3[]","name":"calls","type":"tuple[]"}],"name":"aggregate3","outputs":[{"components":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"bytes","name":"returnData","type":"bytes"}],"internalType":"struct TrustedMulticallForwarder.Result[]","name":"returnData","type":"tuple[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bool","name":"requireSuccess","type":"bool"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"callData","type":"bytes"}],"internalType":"struct TrustedMulticallForwarder.Call3Value[]","name":"calls","type":"tuple[]"}],"name":"aggregate3Value","outputs":[{"components":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"bytes","name":"returnData","type":"bytes"}],"internalType":"struct TrustedMulticallForwarder.Result[]","name":"returnData","type":"tuple[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bytes","name":"callData","type":"bytes"}],"internalType":"struct TrustedMulticallForwarder.Call[]","name":"calls","type":"tuple[]"}],"name":"blockAndAggregate","outputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"},{"internalType":"bytes32","name":"blockHash","type":"bytes32"},{"components":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"bytes","name":"returnData","type":"bytes"}],"internalType":"struct TrustedMulticallForwarder.Result[]","name":"returnData","type":"tuple[]"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"eip712Domain","outputs":[{"internalType":"bytes1","name":"fields","type":"bytes1"},{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"version","type":"string"},{"internalType":"uint256","name":"chainId","type":"uint256"},{"internalType":"address","name":"verifyingContract","type":"address"},{"internalType":"bytes32","name":"salt","type":"bytes32"},{"internalType":"uint256[]","name":"extensions","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"gas","type":"uint256"},{"internalType":"uint48","name":"deadline","type":"uint48"},{"internalType":"bytes","name":"data","type":"bytes"},{"internalType":"bytes","name":"signature","type":"bytes"}],"internalType":"struct ERC2771Forwarder.ForwardRequestData","name":"request","type":"tuple"}],"name":"execute","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"gas","type":"uint256"},{"internalType":"uint48","name":"deadline","type":"uint48"},{"internalType":"bytes","name":"data","type":"bytes"},{"internalType":"bytes","name":"signature","type":"bytes"}],"internalType":"struct ERC2771Forwarder.ForwardRequestData[]","name":"requests","type":"tuple[]"}],"name":"executeBatch","outputs":[{"components":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"bytes","name":"returnData","type":"bytes"}],"internalType":"struct TrustedMulticallForwarder.Result[]","name":"returnData","type":"tuple[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"gas","type":"uint256"},{"internalType":"uint48","name":"deadline","type":"uint48"},{"internalType":"bytes","name":"data","type":"bytes"},{"internalType":"bytes","name":"signature","type":"bytes"}],"internalType":"struct ERC2771Forwarder.ForwardRequestData[]","name":"requests","type":"tuple[]"},{"internalType":"address payable","name":"refundReceiver","type":"address"}],"name":"executeBatch","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"getBasefee","outputs":[{"internalType":"uint256","name":"basefee","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"name":"getBlockHash","outputs":[{"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getBlockNumber","outputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getChainId","outputs":[{"internalType":"uint256","name":"chainid","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCurrentBlockCoinbase","outputs":[{"internalType":"address","name":"coinbase","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCurrentBlockGasLimit","outputs":[{"internalType":"uint256","name":"gaslimit","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCurrentBlockTimestamp","outputs":[{"internalType":"uint256","name":"timestamp","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"addr","type":"address"}],"name":"getEthBalance","outputs":[{"internalType":"uint256","name":"balance","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getLastBlockHash","outputs":[{"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getPrevRandao","outputs":[{"internalType":"uint256","name":"prevrandao","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bool","name":"requireSuccess","type":"bool"},{"components":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bytes","name":"callData","type":"bytes"}],"internalType":"struct TrustedMulticallForwarder.Call[]","name":"calls","type":"tuple[]"}],"name":"tryAggregate","outputs":[{"components":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"bytes","name":"returnData","type":"bytes"}],"internalType":"struct TrustedMulticallForwarder.Result[]","name":"returnData","type":"tuple[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"requireSuccess","type":"bool"},{"components":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bytes","name":"callData","type":"bytes"}],"internalType":"struct TrustedMulticallForwarder.Call[]","name":"calls","type":"tuple[]"}],"name":"tryBlockAndAggregate","outputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"},{"internalType":"bytes32","name":"blockHash","type":"bytes32"},{"components":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"bytes","name":"returnData","type":"bytes"}],"internalType":"struct TrustedMulticallForwarder.Result[]","name":"returnData","type":"tuple[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"gas","type":"uint256"},{"internalType":"uint48","name":"deadline","type":"uint48"},{"internalType":"bytes","name":"data","type":"bytes"},{"internalType":"bytes","name":"signature","type":"bytes"}],"internalType":"struct ERC2771Forwarder.ForwardRequestData","name":"request","type":"tuple"}],"name":"verify","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"}]
Contract Creation Code
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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.