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hyperlane-monorepo/solidity/contracts/isms/hook/ERC5164ISM.sol

75 lines
2.1 KiB

// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity >=0.8.0;
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// ============ Internal Imports ============
import {IInterchainSecurityModule} from "../../interfaces/IInterchainSecurityModule.sol";
import {ERC5164MessageHook} from "../../hooks/ERC5164/ERC5164MessageHook.sol";
import {Message} from "../../libs/Message.sol";
import {TypeCasts} from "../../libs/TypeCasts.sol";
import {AbstractHookISM} from "./AbstractHookISM.sol";
// ============ External Imports ============
import {Address} from "@openzeppelin/contracts/utils/Address.sol";
/**
* @title ERC5164ISM
* @notice Uses the generic eip-5164 standard to verify interchain messages.
*/
contract ERC5164ISM is AbstractHookISM {
// ============ Constants ============
uint8 public constant moduleType =
uint8(IInterchainSecurityModule.Types.NULL);
// corresponding 5164 executor address
address public immutable executor;
// ============ Modifiers ============
/**
* @notice Check if sender is authorized to message `verifyMessageId`.
*/
modifier isAuthorized() {
require(
msg.sender == executor,
"ERC5164ISM: sender is not the executor"
);
_;
}
// ============ Constructor ============
constructor(address _executor) {
require(Address.isContract(_executor), "ERC5164ISM: invalid executor");
executor = _executor;
}
// ============ External Functions ============
/**
* @notice Receive a message from the executor.
* @param _sender Left-padded address of the sender.
* @param _messageId Hyperlane ID for the message.
*/
function verifyMessageId(bytes32 _sender, bytes32 _messageId)
external
isAuthorized
{
verifiedMessageIds[_messageId][_sender] = true;
emit ReceivedMessage(_sender, _messageId);
}
}