Overview
ETH Balance
0 ETH
Eth Value
$0.00More Info
Private Name Tags
ContractCreator
Latest 7 from a total of 7 transactions
Transaction Hash |
Method
|
Block
|
From
|
To
|
|||||
---|---|---|---|---|---|---|---|---|---|
Enroll Remote Ro... | 16067631 | 679 days ago | IN | 0 ETH | 0.00069201 | ||||
Enroll Remote Ro... | 16067627 | 679 days ago | IN | 0 ETH | 0.00068421 | ||||
Enroll Remote Ro... | 16067623 | 679 days ago | IN | 0 ETH | 0.00071197 | ||||
Enroll Remote Ro... | 16067619 | 679 days ago | IN | 0 ETH | 0.00071 | ||||
Enroll Remote Ro... | 16067615 | 679 days ago | IN | 0 ETH | 0.00067442 | ||||
Enroll Remote Ro... | 16067611 | 679 days ago | IN | 0 ETH | 0.00067742 | ||||
Enroll Remote Ro... | 16067607 | 679 days ago | IN | 0 ETH | 0.00067722 |
Latest 1 internal transaction
Advanced mode:
Parent Transaction Hash | Block | From | To | |||
---|---|---|---|---|---|---|
16067599 | 679 days ago | Contract Creation | 0 ETH |
Loading...
Loading
Contract Name:
InterchainQueryRouter
Compiler Version
v0.8.16+commit.07a7930e
Optimization Enabled:
Yes with 999999 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2022-11-28 */ // Sources flattened with hardhat v2.9.9 https://hardhat.org // File interfaces/IInterchainGasPaymaster.sol pragma solidity >=0.6.11; /** * @title IInterchainGasPaymaster * @notice Manages payments on a source chain to cover gas costs of relaying * messages to destination chains. */ interface IInterchainGasPaymaster { function payGasFor( address _outbox, uint256 _leafIndex, uint32 _destinationDomain ) external payable; } // File interfaces/IMailbox.sol pragma solidity >=0.6.11; interface IMailbox { function localDomain() external view returns (uint32); function validatorManager() external view returns (address); } // File interfaces/IOutbox.sol pragma solidity >=0.6.11; interface IOutbox is IMailbox { function dispatch( uint32 _destinationDomain, bytes32 _recipientAddress, bytes calldata _messageBody ) external returns (uint256); function cacheCheckpoint() external; function latestCheckpoint() external view returns (bytes32, uint256); function count() external returns (uint256); function fail() external; function cachedCheckpoints(bytes32) external view returns (uint256); function latestCachedCheckpoint() external view returns (bytes32 root, uint256 index); } // File interfaces/IAbacusConnectionManager.sol pragma solidity >=0.6.11; interface IAbacusConnectionManager { function outbox() external view returns (IOutbox); function isInbox(address _inbox) external view returns (bool); function localDomain() external view returns (uint32); } // File @openzeppelin/contracts-upgradeable/utils/[email protected] // OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library AddressUpgradeable { /** * @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 functionCall(target, data, "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"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(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) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason 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 { // 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 assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File @openzeppelin/contracts-upgradeable/proxy/utils/[email protected] // OpenZeppelin Contracts (last updated v4.6.0) (proxy/utils/Initializable.sol) pragma solidity ^0.8.2; /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in * case an upgrade adds a module that needs to be initialized. * * For example: * * [.hljs-theme-light.nopadding] * ``` * contract MyToken is ERC20Upgradeable { * function initialize() initializer public { * __ERC20_init("MyToken", "MTK"); * } * } * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable { * function initializeV2() reinitializer(2) public { * __ERC20Permit_init("MyToken"); * } * } * ``` * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. * * [CAUTION] * ==== * Avoid leaving a contract uninitialized. * * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed: * * [.hljs-theme-light.nopadding] * ``` * /// @custom:oz-upgrades-unsafe-allow constructor * constructor() { * _disableInitializers(); * } * ``` * ==== */ abstract contract Initializable { /** * @dev Indicates that the contract has been initialized. * @custom:oz-retyped-from bool */ uint8 private _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private _initializing; /** * @dev Triggered when the contract has been initialized or reinitialized. */ event Initialized(uint8 version); /** * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope, * `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`. */ modifier initializer() { bool isTopLevelCall = _setInitializedVersion(1); if (isTopLevelCall) { _initializing = true; } _; if (isTopLevelCall) { _initializing = false; emit Initialized(1); } } /** * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be * used to initialize parent contracts. * * `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original * initialization step. This is essential to configure modules that are added through upgrades and that require * initialization. * * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in * a contract, executing them in the right order is up to the developer or operator. */ modifier reinitializer(uint8 version) { bool isTopLevelCall = _setInitializedVersion(version); if (isTopLevelCall) { _initializing = true; } _; if (isTopLevelCall) { _initializing = false; emit Initialized(version); } } /** * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the * {initializer} and {reinitializer} modifiers, directly or indirectly. */ modifier onlyInitializing() { require(_initializing, "Initializable: contract is not initializing"); _; } /** * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call. * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized * to any version. It is recommended to use this to lock implementation contracts that are designed to be called * through proxies. */ function _disableInitializers() internal virtual { _setInitializedVersion(type(uint8).max); } function _setInitializedVersion(uint8 version) private returns (bool) { // If the contract is initializing we ignore whether _initialized is set in order to support multiple // inheritance patterns, but we only do this in the context of a constructor, and for the lowest level // of initializers, because in other contexts the contract may have been reentered. if (_initializing) { require( version == 1 && !AddressUpgradeable.isContract(address(this)), "Initializable: contract is already initialized" ); return false; } else { require(_initialized < version, "Initializable: contract is already initialized"); _initialized = version; return true; } } } // File @openzeppelin/contracts-upgradeable/utils/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @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 ContextUpgradeable is Initializable { function __Context_init() internal onlyInitializing { } function __Context_init_unchained() internal onlyInitializing { } function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; } // File @openzeppelin/contracts-upgradeable/access/[email protected] // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) pragma solidity ^0.8.0; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ function __Ownable_init() internal onlyInitializing { __Ownable_init_unchained(); } function __Ownable_init_unchained() internal onlyInitializing { _transferOwnership(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[49] private __gap; } // File contracts/AbacusConnectionClient.sol pragma solidity >=0.6.11; // ============ Internal Imports ============ // ============ External Imports ============ abstract contract AbacusConnectionClient is OwnableUpgradeable { // ============ Mutable Storage ============ IAbacusConnectionManager public abacusConnectionManager; // Interchain Gas Paymaster contract. The relayer associated with this contract // must be willing to relay messages dispatched from the current Outbox contract, // otherwise payments made to the paymaster will not result in relayed messages. IInterchainGasPaymaster public interchainGasPaymaster; uint256[48] private __GAP; // gap for upgrade safety // ============ Events ============ /** * @notice Emitted when a new abacusConnectionManager is set. * @param abacusConnectionManager The address of the abacusConnectionManager contract */ event AbacusConnectionManagerSet(address indexed abacusConnectionManager); /** * @notice Emitted when a new Interchain Gas Paymaster is set. * @param interchainGasPaymaster The address of the Interchain Gas Paymaster. */ event InterchainGasPaymasterSet(address indexed interchainGasPaymaster); // ============ Modifiers ============ /** * @notice Only accept messages from an Abacus Inbox contract */ modifier onlyInbox() { require(_isInbox(msg.sender), "!inbox"); _; } // ======== Initializer ========= function __AbacusConnectionClient_initialize( address _abacusConnectionManager ) internal onlyInitializing { _setAbacusConnectionManager(_abacusConnectionManager); __Ownable_init(); } function __AbacusConnectionClient_initialize( address _abacusConnectionManager, address _interchainGasPaymaster ) internal onlyInitializing { _setInterchainGasPaymaster(_interchainGasPaymaster); __AbacusConnectionClient_initialize(_abacusConnectionManager); } // ============ External functions ============ /** * @notice Sets the address of the application's AbacusConnectionManager. * @param _abacusConnectionManager The address of the AbacusConnectionManager contract. */ function setAbacusConnectionManager(address _abacusConnectionManager) external virtual onlyOwner { _setAbacusConnectionManager(_abacusConnectionManager); } /** * @notice Sets the address of the application's InterchainGasPaymaster. * @param _interchainGasPaymaster The address of the InterchainGasPaymaster contract. */ function setInterchainGasPaymaster(address _interchainGasPaymaster) external virtual onlyOwner { _setInterchainGasPaymaster(_interchainGasPaymaster); } // ============ Internal functions ============ /** * @notice Sets the address of the application's InterchainGasPaymaster. * @param _interchainGasPaymaster The address of the InterchainGasPaymaster contract. */ function _setInterchainGasPaymaster(address _interchainGasPaymaster) internal { interchainGasPaymaster = IInterchainGasPaymaster( _interchainGasPaymaster ); emit InterchainGasPaymasterSet(_interchainGasPaymaster); } /** * @notice Modify the contract the Application uses to validate Inbox contracts * @param _abacusConnectionManager The address of the abacusConnectionManager contract */ function _setAbacusConnectionManager(address _abacusConnectionManager) internal { abacusConnectionManager = IAbacusConnectionManager( _abacusConnectionManager ); emit AbacusConnectionManagerSet(_abacusConnectionManager); } /** * @notice Get the local Outbox contract from the abacusConnectionManager * @return The local Outbox contract */ function _outbox() internal view returns (IOutbox) { return abacusConnectionManager.outbox(); } /** * @notice Determine whether _potentialInbox is an enrolled Inbox from the abacusConnectionManager * @return True if _potentialInbox is an enrolled Inbox */ function _isInbox(address _potentialInbox) internal view returns (bool) { return abacusConnectionManager.isInbox(_potentialInbox); } /** * @notice Get the local domain from the abacusConnectionManager * @return The local domain */ function _localDomain() internal view virtual returns (uint32) { return abacusConnectionManager.localDomain(); } } // File @openzeppelin/contracts/utils/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @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; } } // File @openzeppelin/contracts/access/[email protected] // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) pragma solidity ^0.8.0; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File @openzeppelin/contracts/utils/[email protected] // OpenZeppelin Contracts (last updated v4.5.0) (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 functionCall(target, data, "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"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(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) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(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) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason 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 { // 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 assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File @openzeppelin/contracts/utils/structs/[email protected] // OpenZeppelin Contracts (last updated v4.6.0) (utils/structs/EnumerableSet.sol) pragma solidity ^0.8.0; /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`) * and `uint256` (`UintSet`) are supported. */ library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping(bytes32 => uint256) _indexes; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; if (lastIndex != toDeleteIndex) { bytes32 lastValue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastValue; // Update the index for the moved value set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex } // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /** * @dev Returns true if the value is in the set. O(1). */ function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /** * @dev Returns the number of values on the set. O(1). */ function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Set storage set, uint256 index) private view returns (bytes32) { return set._values[index]; } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function _values(Set storage set) private view returns (bytes32[] memory) { return set._values; } // Bytes32Set struct Bytes32Set { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } /** * @dev Returns the number of values in the set. O(1). */ function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(Bytes32Set storage set) internal view returns (bytes32[] memory) { return _values(set._inner); } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns the number of values in the set. O(1). */ function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(AddressSet storage set) internal view returns (address[] memory) { bytes32[] memory store = _values(set._inner); address[] memory result; assembly { result := store } return result; } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values on the set. O(1). */ function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(UintSet storage set) internal view returns (uint256[] memory) { bytes32[] memory store = _values(set._inner); uint256[] memory result; assembly { result := store } return result; } } // File contracts/AbacusConnectionManager.sol pragma solidity >=0.8.0; pragma abicoder v2; // ============ Internal Imports ============ // ============ External Imports ============ /** * @title AbacusConnectionManager * @author Celo Labs Inc. * @notice Manages a registry of local Inbox contracts for remote Outbox * domains. */ contract AbacusConnectionManager is IAbacusConnectionManager, Ownable { using EnumerableSet for EnumerableSet.AddressSet; // ============ Public Storage ============ // Outbox contract IOutbox public override outbox; // local Inbox address => remote Outbox domain mapping(address => uint32) public inboxToDomain; // remote Outbox domain => local Inbox addresses mapping(uint32 => EnumerableSet.AddressSet) domainToInboxes; // ============ Events ============ /** * @notice Emitted when a new Outbox is set. * @param outbox the address of the Outbox */ event OutboxSet(address indexed outbox); /** * @notice Emitted when a new Inbox is enrolled / added * @param domain the remote domain of the Outbox contract for the Inbox * @param inbox the address of the Inbox */ event InboxEnrolled(uint32 indexed domain, address inbox); /** * @notice Emitted when a new Inbox is un-enrolled / removed * @param domain the remote domain of the Outbox contract for the Inbox * @param inbox the address of the Inbox */ event InboxUnenrolled(uint32 indexed domain, address inbox); // ============ Constructor ============ // solhint-disable-next-line no-empty-blocks constructor() Ownable() {} // ============ External Functions ============ /** * @notice Sets the address of the local Outbox contract. * @param _outbox The address of the new local Outbox contract. */ function setOutbox(address _outbox) external onlyOwner { require(Address.isContract(_outbox), "outbox !contract"); outbox = IOutbox(_outbox); emit OutboxSet(_outbox); } /** * @notice Allow Owner to enroll Inbox contract * @param _domain the remote domain of the Outbox contract for the Inbox * @param _inbox the address of the Inbox */ function enrollInbox(uint32 _domain, address _inbox) external onlyOwner { require(Address.isContract(_inbox), "inbox !contract"); require(!isInbox(_inbox), "already inbox"); // add inbox and domain to two-way mapping inboxToDomain[_inbox] = _domain; domainToInboxes[_domain].add(_inbox); emit InboxEnrolled(_domain, _inbox); } /** * @notice Allow Owner to un-enroll Inbox contract * @param _inbox the address of the Inbox */ function unenrollInbox(address _inbox) external onlyOwner { _unenrollInbox(_inbox); } /** * @notice Query local domain from Outbox * @return local domain */ function localDomain() external view override returns (uint32) { return outbox.localDomain(); } /** * @notice Returns the Inbox addresses for a given remote domain * @return inboxes An array of addresses of the Inboxes */ function getInboxes(uint32 remoteDomain) external view returns (address[] memory) { EnumerableSet.AddressSet storage _inboxes = domainToInboxes[ remoteDomain ]; uint256 length = _inboxes.length(); address[] memory ret = new address[](length); for (uint256 i = 0; i < length; i += 1) { ret[i] = _inboxes.at(i); } return ret; } // ============ Public Functions ============ /** * @notice Check whether _inbox is enrolled * @param _inbox the inbox to check for enrollment * @return TRUE iff _inbox is enrolled */ function isInbox(address _inbox) public view override returns (bool) { return inboxToDomain[_inbox] != 0; } // ============ Internal Functions ============ /** * @notice Remove the inbox from the two-way mappings * @param _inbox inbox to un-enroll */ function _unenrollInbox(address _inbox) internal { uint32 _currentDomain = inboxToDomain[_inbox]; require(domainToInboxes[_currentDomain].remove(_inbox), "not enrolled"); domainToInboxes[_currentDomain].remove(_inbox); inboxToDomain[_inbox] = 0; emit InboxUnenrolled(_currentDomain, _inbox); } } // File contracts/upgrade/Versioned.sol pragma solidity >=0.6.11; /** * @title Versioned * @notice Version getter for contracts **/ contract Versioned { uint8 public constant VERSION = 0; } // File contracts/Mailbox.sol pragma solidity >=0.8.0; // ============ Internal Imports ============ // ============ External Imports ============ /** * @title Mailbox * @author Celo Labs Inc. * @notice Shared utilities between Outbox and Inbox. */ abstract contract Mailbox is IMailbox, OwnableUpgradeable { // ============ Immutable Variables ============ // Domain of chain on which the contract is deployed uint32 public immutable override localDomain; // ============ Public Variables ============ // Address of the validator manager contract. address public validatorManager; // ============ Upgrade Gap ============ // gap for upgrade safety uint256[49] private __GAP; // ============ Events ============ /** * @notice Emitted when the validator manager contract is changed * @param validatorManager The address of the new validatorManager */ event ValidatorManagerSet(address validatorManager); // ============ Modifiers ============ /** * @notice Ensures that a function is called by the validator manager contract. */ modifier onlyValidatorManager() { require(msg.sender == validatorManager, "!validatorManager"); _; } // ============ Constructor ============ constructor(uint32 _localDomain) { localDomain = _localDomain; } // ============ Initializer ============ function __Mailbox_initialize(address _validatorManager) internal onlyInitializing { // initialize owner __Ownable_init(); _setValidatorManager(_validatorManager); } // ============ External Functions ============ /** * @notice Set a new validator manager contract * @dev Mailbox(es) will initially be initialized using a trusted validator manager contract; * we will progressively decentralize by swapping the trusted contract with a new implementation * that implements Validator bonding & slashing, and rules for Validator selection & rotation * @param _validatorManager the new validator manager contract */ function setValidatorManager(address _validatorManager) external onlyOwner { _setValidatorManager(_validatorManager); } // ============ Internal Functions ============ /** * @notice Set the validator manager * @param _validatorManager Address of the validator manager */ function _setValidatorManager(address _validatorManager) internal { require( Address.isContract(_validatorManager), "!contract validatorManager" ); validatorManager = _validatorManager; emit ValidatorManagerSet(_validatorManager); } } // File contracts/libs/Merkle.sol pragma solidity >=0.6.11; // work based on eth2 deposit contract, which is used under CC0-1.0 /** * @title MerkleLib * @author Celo Labs Inc. * @notice An incremental merkle tree modeled on the eth2 deposit contract. **/ library MerkleLib { uint256 internal constant TREE_DEPTH = 32; uint256 internal constant MAX_LEAVES = 2**TREE_DEPTH - 1; /** * @notice Struct representing incremental merkle tree. Contains current * branch and the number of inserted leaves in the tree. **/ struct Tree { bytes32[TREE_DEPTH] branch; uint256 count; } /** * @notice Inserts `_node` into merkle tree * @dev Reverts if tree is full * @param _node Element to insert into tree **/ function insert(Tree storage _tree, bytes32 _node) internal { require(_tree.count < MAX_LEAVES, "merkle tree full"); _tree.count += 1; uint256 size = _tree.count; for (uint256 i = 0; i < TREE_DEPTH; i++) { if ((size & 1) == 1) { _tree.branch[i] = _node; return; } _node = keccak256(abi.encodePacked(_tree.branch[i], _node)); size /= 2; } // As the loop should always end prematurely with the `return` statement, // this code should be unreachable. We assert `false` just to be safe. assert(false); } /** * @notice Calculates and returns`_tree`'s current root given array of zero * hashes * @param _zeroes Array of zero hashes * @return _current Calculated root of `_tree` **/ function rootWithCtx(Tree storage _tree, bytes32[TREE_DEPTH] memory _zeroes) internal view returns (bytes32 _current) { uint256 _index = _tree.count; for (uint256 i = 0; i < TREE_DEPTH; i++) { uint256 _ithBit = (_index >> i) & 0x01; bytes32 _next = _tree.branch[i]; if (_ithBit == 1) { _current = keccak256(abi.encodePacked(_next, _current)); } else { _current = keccak256(abi.encodePacked(_current, _zeroes[i])); } } } /// @notice Calculates and returns`_tree`'s current root function root(Tree storage _tree) internal view returns (bytes32) { return rootWithCtx(_tree, zeroHashes()); } /// @notice Returns array of TREE_DEPTH zero hashes /// @return _zeroes Array of TREE_DEPTH zero hashes function zeroHashes() internal pure returns (bytes32[TREE_DEPTH] memory _zeroes) { _zeroes[0] = Z_0; _zeroes[1] = Z_1; _zeroes[2] = Z_2; _zeroes[3] = Z_3; _zeroes[4] = Z_4; _zeroes[5] = Z_5; _zeroes[6] = Z_6; _zeroes[7] = Z_7; _zeroes[8] = Z_8; _zeroes[9] = Z_9; _zeroes[10] = Z_10; _zeroes[11] = Z_11; _zeroes[12] = Z_12; _zeroes[13] = Z_13; _zeroes[14] = Z_14; _zeroes[15] = Z_15; _zeroes[16] = Z_16; _zeroes[17] = Z_17; _zeroes[18] = Z_18; _zeroes[19] = Z_19; _zeroes[20] = Z_20; _zeroes[21] = Z_21; _zeroes[22] = Z_22; _zeroes[23] = Z_23; _zeroes[24] = Z_24; _zeroes[25] = Z_25; _zeroes[26] = Z_26; _zeroes[27] = Z_27; _zeroes[28] = Z_28; _zeroes[29] = Z_29; _zeroes[30] = Z_30; _zeroes[31] = Z_31; } /** * @notice Calculates and returns the merkle root for the given leaf * `_item`, a merkle branch, and the index of `_item` in the tree. * @param _item Merkle leaf * @param _branch Merkle proof * @param _index Index of `_item` in tree * @return _current Calculated merkle root **/ function branchRoot( bytes32 _item, bytes32[TREE_DEPTH] memory _branch, uint256 _index ) internal pure returns (bytes32 _current) { _current = _item; for (uint256 i = 0; i < TREE_DEPTH; i++) { uint256 _ithBit = (_index >> i) & 0x01; bytes32 _next = _branch[i]; if (_ithBit == 1) { _current = keccak256(abi.encodePacked(_next, _current)); } else { _current = keccak256(abi.encodePacked(_current, _next)); } } } // keccak256 zero hashes bytes32 internal constant Z_0 = hex"0000000000000000000000000000000000000000000000000000000000000000"; bytes32 internal constant Z_1 = hex"ad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5"; bytes32 internal constant Z_2 = hex"b4c11951957c6f8f642c4af61cd6b24640fec6dc7fc607ee8206a99e92410d30"; bytes32 internal constant Z_3 = hex"21ddb9a356815c3fac1026b6dec5df3124afbadb485c9ba5a3e3398a04b7ba85"; bytes32 internal constant Z_4 = hex"e58769b32a1beaf1ea27375a44095a0d1fb664ce2dd358e7fcbfb78c26a19344"; bytes32 internal constant Z_5 = hex"0eb01ebfc9ed27500cd4dfc979272d1f0913cc9f66540d7e8005811109e1cf2d"; bytes32 internal constant Z_6 = hex"887c22bd8750d34016ac3c66b5ff102dacdd73f6b014e710b51e8022af9a1968"; bytes32 internal constant Z_7 = hex"ffd70157e48063fc33c97a050f7f640233bf646cc98d9524c6b92bcf3ab56f83"; bytes32 internal constant Z_8 = hex"9867cc5f7f196b93bae1e27e6320742445d290f2263827498b54fec539f756af"; bytes32 internal constant Z_9 = hex"cefad4e508c098b9a7e1d8feb19955fb02ba9675585078710969d3440f5054e0"; bytes32 internal constant Z_10 = hex"f9dc3e7fe016e050eff260334f18a5d4fe391d82092319f5964f2e2eb7c1c3a5"; bytes32 internal constant Z_11 = hex"f8b13a49e282f609c317a833fb8d976d11517c571d1221a265d25af778ecf892"; bytes32 internal constant Z_12 = hex"3490c6ceeb450aecdc82e28293031d10c7d73bf85e57bf041a97360aa2c5d99c"; bytes32 internal constant Z_13 = hex"c1df82d9c4b87413eae2ef048f94b4d3554cea73d92b0f7af96e0271c691e2bb"; bytes32 internal constant Z_14 = hex"5c67add7c6caf302256adedf7ab114da0acfe870d449a3a489f781d659e8becc"; bytes32 internal constant Z_15 = hex"da7bce9f4e8618b6bd2f4132ce798cdc7a60e7e1460a7299e3c6342a579626d2"; bytes32 internal constant Z_16 = hex"2733e50f526ec2fa19a22b31e8ed50f23cd1fdf94c9154ed3a7609a2f1ff981f"; bytes32 internal constant Z_17 = hex"e1d3b5c807b281e4683cc6d6315cf95b9ade8641defcb32372f1c126e398ef7a"; bytes32 internal constant Z_18 = hex"5a2dce0a8a7f68bb74560f8f71837c2c2ebbcbf7fffb42ae1896f13f7c7479a0"; bytes32 internal constant Z_19 = hex"b46a28b6f55540f89444f63de0378e3d121be09e06cc9ded1c20e65876d36aa0"; bytes32 internal constant Z_20 = hex"c65e9645644786b620e2dd2ad648ddfcbf4a7e5b1a3a4ecfe7f64667a3f0b7e2"; bytes32 internal constant Z_21 = hex"f4418588ed35a2458cffeb39b93d26f18d2ab13bdce6aee58e7b99359ec2dfd9"; bytes32 internal constant Z_22 = hex"5a9c16dc00d6ef18b7933a6f8dc65ccb55667138776f7dea101070dc8796e377"; bytes32 internal constant Z_23 = hex"4df84f40ae0c8229d0d6069e5c8f39a7c299677a09d367fc7b05e3bc380ee652"; bytes32 internal constant Z_24 = hex"cdc72595f74c7b1043d0e1ffbab734648c838dfb0527d971b602bc216c9619ef"; bytes32 internal constant Z_25 = hex"0abf5ac974a1ed57f4050aa510dd9c74f508277b39d7973bb2dfccc5eeb0618d"; bytes32 internal constant Z_26 = hex"b8cd74046ff337f0a7bf2c8e03e10f642c1886798d71806ab1e888d9e5ee87d0"; bytes32 internal constant Z_27 = hex"838c5655cb21c6cb83313b5a631175dff4963772cce9108188b34ac87c81c41e"; bytes32 internal constant Z_28 = hex"662ee4dd2dd7b2bc707961b1e646c4047669dcb6584f0d8d770daf5d7e7deb2e"; bytes32 internal constant Z_29 = hex"388ab20e2573d171a88108e79d820e98f26c0b84aa8b2f4aa4968dbb818ea322"; bytes32 internal constant Z_30 = hex"93237c50ba75ee485f4c22adf2f741400bdf8d6a9cc7df7ecae576221665d735"; bytes32 internal constant Z_31 = hex"8448818bb4ae4562849e949e17ac16e0be16688e156b5cf15e098c627c0056a9"; } // File contracts/libs/TypeCasts.sol pragma solidity >=0.6.11; library TypeCasts { // treat it as a null-terminated string of max 32 bytes function coerceString(bytes32 _buf) internal pure returns (string memory _newStr) { uint8 _slen = 0; while (_slen < 32 && _buf[_slen] != 0) { _slen++; } // solhint-disable-next-line no-inline-assembly assembly { _newStr := mload(0x40) mstore(0x40, add(_newStr, 0x40)) // may end up with extra mstore(_newStr, _slen) mstore(add(_newStr, 0x20), _buf) } } // alignment preserving cast function addressToBytes32(address _addr) internal pure returns (bytes32) { return bytes32(uint256(uint160(_addr))); } // alignment preserving cast function bytes32ToAddress(bytes32 _buf) internal pure returns (address) { return address(uint160(uint256(_buf))); } } // File contracts/libs/Message.sol pragma solidity >=0.8.0; /** * @title Message Library * @author Celo Labs Inc. * @notice Library for formatted messages used by Outbox and Replica. **/ library Message { using TypeCasts for bytes32; /** * @notice Returns formatted (packed) message with provided fields * @dev This function should only be used in memory message construction. * @param _originDomain Domain of home chain * @param _sender Address of sender as bytes32 * @param _destinationDomain Domain of destination chain * @param _recipient Address of recipient on destination chain as bytes32 * @param _messageBody Raw bytes of message body * @return Formatted message **/ function formatMessage( uint32 _originDomain, bytes32 _sender, uint32 _destinationDomain, bytes32 _recipient, bytes calldata _messageBody ) internal pure returns (bytes memory) { return abi.encodePacked( _originDomain, _sender, _destinationDomain, _recipient, _messageBody ); } /** * @notice Returns leaf of formatted message with provided fields. * @dev hash of abi packed message and leaf index. * @param _message Raw bytes of message contents. * @param _leafIndex Index of the message in the tree * @return Leaf (hash) of formatted message */ function leaf(bytes calldata _message, uint256 _leafIndex) internal pure returns (bytes32) { return keccak256(abi.encodePacked(_message, _leafIndex)); } /** * @notice Decode raw message bytes into structured message fields. * @dev Efficiently slices calldata into structured message fields. * @param _message Raw bytes of message contents. * @return origin Domain of home chain * @return sender Address of sender as bytes32 * @return destination Domain of destination chain * @return recipient Address of recipient on destination chain as bytes32 * @return body Raw bytes of message body */ function destructure(bytes calldata _message) internal pure returns ( uint32 origin, bytes32 sender, uint32 destination, bytes32 recipient, bytes calldata body ) { return ( uint32(bytes4(_message[0:4])), bytes32(_message[4:36]), uint32(bytes4(_message[36:40])), bytes32(_message[40:72]), bytes(_message[72:]) ); } /** * @notice Decode raw message bytes into structured message fields. * @dev Efficiently slices calldata into structured message fields. * @param _message Raw bytes of message contents. * @return origin Domain of home chain * @return sender Address of sender as address (bytes20) * @return destination Domain of destination chain * @return recipient Address of recipient on destination chain as address (bytes20) * @return body Raw bytes of message body */ function destructureAddresses(bytes calldata _message) internal pure returns ( uint32, address, uint32, address, bytes calldata ) { ( uint32 _origin, bytes32 _sender, uint32 destination, bytes32 _recipient, bytes calldata body ) = destructure(_message); return ( _origin, _sender.bytes32ToAddress(), destination, _recipient.bytes32ToAddress(), body ); } } // File interfaces/IMessageRecipient.sol pragma solidity >=0.6.11; interface IMessageRecipient { function handle( uint32 _origin, bytes32 _sender, bytes calldata _message ) external; } // File interfaces/IInbox.sol pragma solidity >=0.6.11; interface IInbox is IMailbox { function remoteDomain() external returns (uint32); function process( bytes32 _root, uint256 _index, bytes calldata _message, bytes32[32] calldata _proof, uint256 _leafIndex ) external; } // File @openzeppelin/contracts-upgradeable/security/[email protected] // OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol) pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuardUpgradeable is Initializable { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; function __ReentrancyGuard_init() internal onlyInitializing { __ReentrancyGuard_init_unchained(); } function __ReentrancyGuard_init_unchained() internal onlyInitializing { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[49] private __gap; } // File contracts/Inbox.sol pragma solidity >=0.8.0; // ============ Internal Imports ============ // ============ External Imports ============ /** * @title Inbox * @author Celo Labs Inc. * @notice Track root updates on Outbox, prove and dispatch messages to end * recipients. */ contract Inbox is IInbox, ReentrancyGuardUpgradeable, Versioned, Mailbox { // ============ Libraries ============ using MerkleLib for MerkleLib.Tree; using Message for bytes; using TypeCasts for bytes32; // ============ Enums ============ // Status of Message: // 0 - None - message has not been processed // 1 - Processed - message has been dispatched to recipient enum MessageStatus { None, Processed } // ============ Public Storage ============ // Domain of outbox chain uint32 public override remoteDomain; // Mapping of message leaves to MessageStatus mapping(bytes32 => MessageStatus) public messages; // ============ Upgrade Gap ============ // gap for upgrade safety uint256[48] private __GAP; // ============ Events ============ /** * @notice Emitted when message is processed * @dev This event allows watchers to observe the merkle proof they need * to prove fraud on the Outbox. * @param messageHash Hash of message that was processed. */ event Process(bytes32 indexed messageHash); // ============ Constructor ============ // solhint-disable-next-line no-empty-blocks constructor(uint32 _localDomain) Mailbox(_localDomain) {} // ============ Initializer ============ function initialize(uint32 _remoteDomain, address _validatorManager) external initializer { __ReentrancyGuard_init(); __Mailbox_initialize(_validatorManager); remoteDomain = _remoteDomain; } // ============ External Functions ============ /** * @notice Attempts to process the provided formatted `message`. Performs * verification against root of the proof * @dev Called by the validator manager, which is responsible for verifying a * quorum of validator signatures on the checkpoint. * @dev Reverts if verification of the message fails. * @param _root The merkle root of the checkpoint used to prove message inclusion. * @param _index The index of the checkpoint used to prove message inclusion. * @param _message Formatted message (refer to Mailbox.sol Message library) * @param _proof Merkle proof of inclusion for message's leaf * @param _leafIndex Index of leaf in outbox's merkle tree */ function process( bytes32 _root, uint256 _index, bytes calldata _message, bytes32[32] calldata _proof, uint256 _leafIndex ) external override nonReentrant onlyValidatorManager { require(_index >= _leafIndex, "!index"); bytes32 _messageHash = _message.leaf(_leafIndex); // ensure that message has not been processed require( messages[_messageHash] == MessageStatus.None, "!MessageStatus.None" ); // calculate the expected root based on the proof bytes32 _calculatedRoot = MerkleLib.branchRoot( _messageHash, _proof, _leafIndex ); // verify the merkle proof require(_calculatedRoot == _root, "!proof"); _process(_message, _messageHash); } // ============ Internal Functions ============ /** * @notice Marks a message as processed and calls handle on the recipient * @dev Internal function that can be called by contracts like TestInbox * @param _message Formatted message (refer to Mailbox.sol Message library) * @param _messageHash keccak256 hash of the message */ function _process(bytes calldata _message, bytes32 _messageHash) internal { ( uint32 origin, bytes32 sender, uint32 destination, bytes32 recipient, bytes calldata body ) = _message.destructure(); // ensure message came from the correct domain require(origin == remoteDomain, "!origin"); // ensure message was meant for this domain require(destination == localDomain, "!destination"); // update message status as processed messages[_messageHash] = MessageStatus.Processed; IMessageRecipient(recipient.bytes32ToAddress()).handle( origin, sender, body ); emit Process(_messageHash); } } // File contracts/InterchainGasPaymaster.sol pragma solidity >=0.8.0; // ============ Internal Imports ============ // ============ External Imports ============ /** * @title InterchainGasPaymaster * @notice Manages payments on a source chain to cover gas costs of relaying * messages to destination chains. */ contract InterchainGasPaymaster is IInterchainGasPaymaster, OwnableUpgradeable { // ============ Events ============ /** * @notice Emitted when a payment is made for a message's gas costs. * @param outbox The address of the Outbox contract. * @param leafIndex The index of the message in the Outbox merkle tree. * @param amount The amount of native tokens paid. */ event GasPayment(address indexed outbox, uint256 leafIndex, uint256 amount); // ============ Constructor ============ // solhint-disable-next-line no-empty-blocks constructor() { initialize(); // allows contract to be used without proxying } // ============ External Functions ============ function initialize() public initializer { __Ownable_init(); } /** * @notice Deposits msg.value as a payment for the relaying of a message * to its destination chain. * @param _outbox The address of the Outbox contract. * @param _leafIndex The index of the message in the Outbox merkle tree. * @param _destinationDomain The domain of the message's destination chain. */ function payGasFor( address _outbox, uint256 _leafIndex, uint32 _destinationDomain ) external payable override { // Silence compiler warning. The NatSpec @param requires the parameter to be named. // While not used at the moment, future versions of the paymaster may conditionally // forward payments depending on the destination domain. _destinationDomain; emit GasPayment(_outbox, _leafIndex, msg.value); } /** * @notice Transfers the entire native token balance to the owner of the contract. * @dev The owner must be able to receive native tokens. */ function claim() external { // Transfer the entire balance to owner. (bool success, ) = owner().call{value: address(this).balance}(""); require(success, "!transfer"); } } // File contracts/MerkleTreeManager.sol pragma solidity >=0.8.0; // ============ Internal Imports ============ /** * @title MerkleTreeManager * @author Celo Labs Inc. * @notice Contains a Merkle tree instance and * exposes view functions for the tree. */ contract MerkleTreeManager { // ============ Libraries ============ using MerkleLib for MerkleLib.Tree; MerkleLib.Tree public tree; // ============ Upgrade Gap ============ // gap for upgrade safety uint256[49] private __GAP; // ============ Public Functions ============ /** * @notice Calculates and returns tree's current root */ function root() public view returns (bytes32) { return tree.root(); } } // File contracts/Call.sol pragma solidity ^0.8.13; struct Call { address to; bytes data; } // File contracts/OwnableMulticall.sol pragma solidity ^0.8.13; // ============ External Imports ============ /* * @title OwnableMulticall * @dev Allows only only address to execute calls to other contracts */ contract OwnableMulticall is OwnableUpgradeable { constructor() { _transferOwnership(msg.sender); } function proxyCalls(Call[] calldata calls) external onlyOwner { for (uint256 i = 0; i < calls.length; i += 1) { (bool success, bytes memory returnData) = calls[i].to.call( calls[i].data ); if (!success) { assembly { revert(add(returnData, 32), returnData) } } } } function _call(Call[] memory calls, bytes[] memory callbacks) internal returns (bytes[] memory resolveCalls) { resolveCalls = new bytes[](callbacks.length); for (uint256 i = 0; i < calls.length; i++) { (bool success, bytes memory returnData) = calls[i].to.call( calls[i].data ); require(success, "Multicall: call failed"); resolveCalls[i] = bytes.concat(callbacks[i], returnData); } } // TODO: deduplicate function proxyCallBatch(address to, bytes[] memory calls) internal { for (uint256 i = 0; i < calls.length; i += 1) { (bool success, bytes memory returnData) = to.call(calls[i]); if (!success) { assembly { revert(add(returnData, 32), returnData) } } } } } // File interfaces/IInterchainAccountRouter.sol pragma solidity >=0.6.11; interface IInterchainAccountRouter { function dispatch(uint32 _destinationDomain, Call[] calldata calls) external returns (uint256); function dispatch( uint32 _destinationDomain, address target, bytes calldata data ) external returns (uint256); function getInterchainAccount(uint32 _originDomain, address _sender) external view returns (address); } // File contracts/Router.sol pragma solidity >=0.6.11; // ============ Internal Imports ============ abstract contract Router is AbacusConnectionClient, IMessageRecipient { string constant NO_ROUTER_ENROLLED_REVERT_MESSAGE = "No router enrolled for domain. Did you specify the right domain ID?"; // ============ Mutable Storage ============ mapping(uint32 => bytes32) public routers; uint256[49] private __GAP; // gap for upgrade safety // ============ Events ============ /** * @notice Emitted when a router is set. * @param domain The domain of the new router * @param router The address of the new router */ event RemoteRouterEnrolled(uint32 indexed domain, bytes32 indexed router); // ============ Modifiers ============ /** * @notice Only accept messages from a remote Router contract * @param _origin The domain the message is coming from * @param _router The address the message is coming from */ modifier onlyRemoteRouter(uint32 _origin, bytes32 _router) { require( _isRemoteRouter(_origin, _router), NO_ROUTER_ENROLLED_REVERT_MESSAGE ); _; } // ======== Initializer ========= function __Router_initialize(address _abacusConnectionManager) internal onlyInitializing { __AbacusConnectionClient_initialize(_abacusConnectionManager); } function __Router_initialize( address _abacusConnectionManager, address _interchainGasPaymaster ) internal onlyInitializing { __AbacusConnectionClient_initialize( _abacusConnectionManager, _interchainGasPaymaster ); } // ============ External functions ============ /** * @notice Register the address of a Router contract for the same Application on a remote chain * @param _domain The domain of the remote Application Router * @param _router The address of the remote Application Router */ function enrollRemoteRouter(uint32 _domain, bytes32 _router) external virtual onlyOwner { _enrollRemoteRouter(_domain, _router); } /** * @notice Handles an incoming message * @param _origin The origin domain * @param _sender The sender address * @param _message The message */ function handle( uint32 _origin, bytes32 _sender, bytes calldata _message ) external virtual override onlyInbox onlyRemoteRouter(_origin, _sender) { // TODO: callbacks on success/failure _handle(_origin, _sender, _message); } // ============ Virtual functions ============ function _handle( uint32 _origin, bytes32 _sender, bytes calldata _message ) internal virtual; // ============ Internal functions ============ /** * @notice Set the router for a given domain * @param _domain The domain * @param _router The new router */ function _enrollRemoteRouter(uint32 _domain, bytes32 _router) internal { routers[_domain] = _router; emit RemoteRouterEnrolled(_domain, _router); } /** * @notice Return true if the given domain / router is the address of a remote Application Router * @param _domain The domain of the potential remote Application Router * @param _router The address of the potential remote Application Router */ function _isRemoteRouter(uint32 _domain, bytes32 _router) internal view returns (bool) { return routers[_domain] == _router; } /** * @notice Assert that the given domain has a Application Router registered and return its address * @param _domain The domain of the chain for which to get the Application Router * @return _router The address of the remote Application Router on _domain */ function _mustHaveRemoteRouter(uint32 _domain) internal view returns (bytes32 _router) { _router = routers[_domain]; require(_router != bytes32(0), NO_ROUTER_ENROLLED_REVERT_MESSAGE); } /** * @notice Dispatches a message to an enrolled router via the local router's Outbox. * @notice Does not pay interchain gas. * @dev Reverts if there is no enrolled router for _destinationDomain. * @param _destinationDomain The domain of the chain to which to send the message. * @param _msg The message to dispatch. */ function _dispatch(uint32 _destinationDomain, bytes memory _msg) internal returns (uint256) { return _dispatch(_outbox(), _destinationDomain, _msg); } /** * @notice Dispatches a message to an enrolled router via the local router's Outbox * and pays for it to be relayed to the destination. * @dev Reverts if there is no enrolled router for _destinationDomain. * @param _destinationDomain The domain of the chain to which to send the message. * @param _msg The message to dispatch. * @param _gasPayment The amount of native tokens to pay for the message to be relayed. */ function _dispatchWithGas( uint32 _destinationDomain, bytes memory _msg, uint256 _gasPayment ) internal { IOutbox _outbox = _outbox(); uint256 _leafIndex = _dispatch(_outbox, _destinationDomain, _msg); if (_gasPayment > 0) { interchainGasPaymaster.payGasFor{value: _gasPayment}( address(_outbox), _leafIndex, _destinationDomain ); } } // ============ Private functions ============ /** * @notice Dispatches a message to an enrolled router via the provided Outbox. * @dev Does not pay interchain gas. * @dev Reverts if there is no enrolled router for _destinationDomain. * @param _outbox The outbox contract to dispatch the message through. * @param _destinationDomain The domain of the chain to which to send the message. * @param _msg The message to dispatch. */ function _dispatch( IOutbox _outbox, uint32 _destinationDomain, bytes memory _msg ) private returns (uint256) { // Ensure that destination chain has an enrolled router. bytes32 _router = _mustHaveRemoteRouter(_destinationDomain); return _outbox.dispatch(_destinationDomain, _router, _msg); } } // File @openzeppelin/contracts/utils/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/Create2.sol) pragma solidity ^0.8.0; /** * @dev Helper to make usage of the `CREATE2` EVM opcode easier and safer. * `CREATE2` can be used to compute in advance the address where a smart * contract will be deployed, which allows for interesting new mechanisms known * as 'counterfactual interactions'. * * See the https://eips.ethereum.org/EIPS/eip-1014#motivation[EIP] for more * information. */ library Create2 { /** * @dev Deploys a contract using `CREATE2`. The address where the contract * will be deployed can be known in advance via {computeAddress}. * * The bytecode for a contract can be obtained from Solidity with * `type(contractName).creationCode`. * * Requirements: * * - `bytecode` must not be empty. * - `salt` must have not been used for `bytecode` already. * - the factory must have a balance of at least `amount`. * - if `amount` is non-zero, `bytecode` must have a `payable` constructor. */ function deploy( uint256 amount, bytes32 salt, bytes memory bytecode ) internal returns (address) { address addr; require(address(this).balance >= amount, "Create2: insufficient balance"); require(bytecode.length != 0, "Create2: bytecode length is zero"); assembly { addr := create2(amount, add(bytecode, 0x20), mload(bytecode), salt) } require(addr != address(0), "Create2: Failed on deploy"); return addr; } /** * @dev Returns the address where a contract will be stored if deployed via {deploy}. Any change in the * `bytecodeHash` or `salt` will result in a new destination address. */ function computeAddress(bytes32 salt, bytes32 bytecodeHash) internal view returns (address) { return computeAddress(salt, bytecodeHash, address(this)); } /** * @dev Returns the address where a contract will be stored if deployed via {deploy} from a contract located at * `deployer`. If `deployer` is this contract's address, returns the same value as {computeAddress}. */ function computeAddress( bytes32 salt, bytes32 bytecodeHash, address deployer ) internal pure returns (address) { bytes32 _data = keccak256(abi.encodePacked(bytes1(0xff), deployer, salt, bytecodeHash)); return address(uint160(uint256(_data))); } } // File contracts/middleware/InterchainAccountRouter.sol pragma solidity ^0.8.13; // ============ External Imports ============ /* * @title The Hello World App * @dev You can use this simple app as a starting point for your own application. */ contract InterchainAccountRouter is Router, IInterchainAccountRouter { bytes constant bytecode = type(OwnableMulticall).creationCode; bytes32 constant bytecodeHash = bytes32(keccak256(bytecode)); event InterchainAccountCreated( uint32 indexed origin, address sender, address account ); function initialize( address _owner, address _abacusConnectionManager, address _interchainGasPaymaster ) public initializer { // Transfer ownership of the contract to deployer _transferOwnership(_owner); // Set the addresses for the ACM and IGP // Alternatively, this could be done later in an initialize method _setAbacusConnectionManager(_abacusConnectionManager); _setInterchainGasPaymaster(_interchainGasPaymaster); } function dispatch(uint32 _destinationDomain, Call[] calldata calls) external returns (uint256) { return _dispatch(_destinationDomain, abi.encode(msg.sender, calls)); } function dispatch( uint32 _destinationDomain, address target, bytes calldata data ) external returns (uint256) { Call[] memory calls = new Call[](1); calls[0] = Call({to: target, data: data}); return _dispatch(_destinationDomain, abi.encode(msg.sender, calls)); } function getInterchainAccount(uint32 _origin, address _sender) public view returns (address) { return _getInterchainAccount(_salt(_origin, _sender)); } function getDeployedInterchainAccount(uint32 _origin, address _sender) public returns (OwnableMulticall) { bytes32 salt = _salt(_origin, _sender); address interchainAccount = _getInterchainAccount(salt); if (!Address.isContract(interchainAccount)) { interchainAccount = Create2.deploy(0, salt, bytecode); emit InterchainAccountCreated(_origin, _sender, interchainAccount); } return OwnableMulticall(interchainAccount); } function _salt(uint32 _origin, address _sender) internal pure returns (bytes32) { return bytes32(abi.encodePacked(_origin, _sender)); } function _getInterchainAccount(bytes32 salt) internal view returns (address) { return Create2.computeAddress(salt, bytecodeHash); } function _handle( uint32 _origin, bytes32, // router sender bytes calldata _message ) internal override { (address sender, Call[] memory calls) = abi.decode( _message, (address, Call[]) ); getDeployedInterchainAccount(_origin, sender).proxyCalls(calls); } } // File interfaces/IInterchainQueryRouter.sol pragma solidity >=0.6.11; interface IInterchainQueryRouter { function query( uint32 _destinationDomain, address target, bytes calldata queryData, bytes calldata callback ) external returns (uint256); function query( uint32 _destinationDomain, Call calldata call, bytes calldata callback ) external returns (uint256); function query( uint32 _destinationDomain, Call[] calldata calls, bytes[] calldata callbacks ) external returns (uint256); } // File contracts/middleware/InterchainQueryRouter.sol pragma solidity ^0.8.13; // ============ External Imports ============ contract InterchainQueryRouter is Router, OwnableMulticall, IInterchainQueryRouter { enum Action { DISPATCH, RESOLVE } event QueryDispatched( uint32 indexed destinationDomain, address indexed sender ); event QueryReturned(uint32 indexed originDomain, address indexed sender); event QueryResolved( uint32 indexed destinationDomain, address indexed sender ); function initialize( address _owner, address _abacusConnectionManager, address _interchainGasPaymaster ) public initializer { // Transfer ownership of the contract to deployer _transferOwnership(_owner); // Set the addresses for the ACM and IGP // Alternatively, this could be done later in an initialize method _setAbacusConnectionManager(_abacusConnectionManager); _setInterchainGasPaymaster(_interchainGasPaymaster); } /** * @param _destinationDomain Domain of destination chain * @param target The address of the contract to query on destination chain. * @param queryData The calldata of the view call to make on the destination chain. * @param callback Callback function selector on `msg.sender` and optionally abi-encoded prefix arguments. */ function query( uint32 _destinationDomain, address target, bytes calldata queryData, bytes calldata callback ) external returns (uint256 leafIndex) { // TODO: fix this ugly arrayification Call[] memory calls = new Call[](1); calls[0] = Call({to: target, data: queryData}); bytes[] memory callbacks = new bytes[](1); callbacks[0] = callback; leafIndex = query(_destinationDomain, calls, callbacks); } /** * @param _destinationDomain Domain of destination chain * @param call Call (to and data packed struct) to be made on destination chain. * @param callback Callback function selector on `msg.sender` and optionally abi-encoded prefix arguments. */ function query( uint32 _destinationDomain, Call calldata call, bytes calldata callback ) external returns (uint256 leafIndex) { // TODO: fix this ugly arrayification Call[] memory calls = new Call[](1); calls[0] = call; bytes[] memory callbacks = new bytes[](1); callbacks[0] = callback; leafIndex = query(_destinationDomain, calls, callbacks); } /** * @param _destinationDomain Domain of destination chain * @param calls Array of calls (to and data packed struct) to be made on destination chain in sequence. * @param callbacks Array of callback function selectors on `msg.sender` and optionally abi-encoded prefix arguments. */ function query( uint32 _destinationDomain, Call[] memory calls, bytes[] memory callbacks ) public returns (uint256 leafIndex) { require( calls.length == callbacks.length, "InterchainQueryRouter: calls and callbacks must be same length" ); leafIndex = _dispatch( _destinationDomain, abi.encode(Action.DISPATCH, msg.sender, calls, callbacks) ); emit QueryDispatched(_destinationDomain, msg.sender); } // TODO: add REJECT behavior ala NodeJS Promise API function _handle( uint32 _origin, bytes32, // router sender bytes calldata _message ) internal override { // TODO: fix double ABI decoding with calldata slices Action action = abi.decode(_message, (Action)); if (action == Action.DISPATCH) { ( , address sender, Call[] memory calls, bytes[] memory callbacks ) = abi.decode(_message, (Action, address, Call[], bytes[])); bytes[] memory resolveCallbacks = _call(calls, callbacks); _dispatch( _origin, abi.encode(Action.RESOLVE, sender, resolveCallbacks) ); emit QueryReturned(_origin, sender); } else if (action == Action.RESOLVE) { (, address sender, bytes[] memory resolveCallbacks) = abi.decode( _message, (Action, address, bytes[]) ); proxyCallBatch(sender, resolveCallbacks); emit QueryResolved(_origin, sender); } } } // File contracts/middleware/liquidity-layer/interfaces/circle/ICircleBridge.sol pragma solidity ^0.8.13; interface ICircleBridge { event MessageSent(bytes message); /** * @notice Deposits and burns tokens from sender to be minted on destination domain. * Emits a `DepositForBurn` event. * @dev reverts if: * - given burnToken is not supported * - given destinationDomain has no CircleBridge registered * - transferFrom() reverts. For example, if sender's burnToken balance or approved allowance * to this contract is less than `amount`. * - burn() reverts. For example, if `amount` is 0. * - MessageTransmitter returns false or reverts. * @param _amount amount of tokens to burn * @param _destinationDomain destination domain (ETH = 0, AVAX = 1) * @param _mintRecipient address of mint recipient on destination domain * @param _burnToken address of contract to burn deposited tokens, on local domain * @return _nonce unique nonce reserved by message */ function depositForBurn( uint256 _amount, uint32 _destinationDomain, bytes32 _mintRecipient, address _burnToken ) external returns (uint64 _nonce); /** * @notice Deposits and burns tokens from sender to be minted on destination domain. The mint * on the destination domain must be called by `_destinationCaller`. * WARNING: if the `_destinationCaller` does not represent a valid address as bytes32, then it will not be possible * to broadcast the message on the destination domain. This is an advanced feature, and the standard * depositForBurn() should be preferred for use cases where a specific destination caller is not required. * Emits a `DepositForBurn` event. * @dev reverts if: * - given destinationCaller is zero address * - given burnToken is not supported * - given destinationDomain has no CircleBridge registered * - transferFrom() reverts. For example, if sender's burnToken balance or approved allowance * to this contract is less than `amount`. * - burn() reverts. For example, if `amount` is 0. * - MessageTransmitter returns false or reverts. * @param _amount amount of tokens to burn * @param _destinationDomain destination domain * @param _mintRecipient address of mint recipient on destination domain * @param _burnToken address of contract to burn deposited tokens, on local domain * @param _destinationCaller caller on the destination domain, as bytes32 * @return _nonce unique nonce reserved by message */ function depositForBurnWithCaller( uint256 _amount, uint32 _destinationDomain, bytes32 _mintRecipient, address _burnToken, bytes32 _destinationCaller ) external returns (uint64 _nonce); } // File contracts/middleware/liquidity-layer/interfaces/circle/ICircleMessageTransmitter.sol pragma solidity ^0.8.13; interface ICircleMessageTransmitter { /** * @notice Receive a message. Messages with a given nonce * can only be broadcast once for a (sourceDomain, destinationDomain) * pair. The message body of a valid message is passed to the * specified recipient for further processing. * * @dev Attestation format: * A valid attestation is the concatenated 65-byte signature(s) of exactly * `thresholdSignature` signatures, in increasing order of attester address. * ***If the attester addresses recovered from signatures are not in * increasing order, signature verification will fail.*** * If incorrect number of signatures or duplicate signatures are supplied, * signature verification will fail. * * Message format: * Field Bytes Type Index * version 4 uint32 0 * sourceDomain 4 uint32 4 * destinationDomain 4 uint32 8 * nonce 8 uint64 12 * sender 32 bytes32 20 * recipient 32 bytes32 52 * messageBody dynamic bytes 84 * @param _message Message bytes * @param _attestation Concatenated 65-byte signature(s) of `_message`, in increasing order * of the attester address recovered from signatures. * @return success bool, true if successful */ function receiveMessage(bytes memory _message, bytes calldata _attestation) external returns (bool success); function usedNonces(bytes32 _nonceId) external view returns (bool); } // File contracts/middleware/liquidity-layer/interfaces/ILiquidityLayerAdapter.sol pragma solidity ^0.8.13; interface ILiquidityLayerAdapter { function sendTokens( uint32 _destinationDomain, bytes32 _recipientAddress, address _token, uint256 _amount ) external returns (bytes memory _adapterData); function receiveTokens( uint32 _originDomain, // Hyperlane domain address _recipientAddress, uint256 _amount, bytes calldata _adapterData // The adapter data from the message ) external returns (address, uint256); } // File @openzeppelin/contracts/token/ERC20/[email protected] // 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); } // File contracts/middleware/liquidity-layer/adapters/CircleBridgeAdapter.sol pragma solidity ^0.8.13; contract CircleBridgeAdapter is ILiquidityLayerAdapter, Router { /// @notice The CircleBridge contract. ICircleBridge public circleBridge; /// @notice The Circle MessageTransmitter contract. ICircleMessageTransmitter public circleMessageTransmitter; /// @notice The LiquidityLayerRouter contract. address public liquidityLayerRouter; /// @notice Hyperlane domain => Circle domain. /// ATM, known Circle domains are Ethereum = 0 and Avalanche = 1. /// Note this could result in ambiguity between the Circle domain being /// Ethereum or unknown. TODO fix? mapping(uint32 => uint32) public hyperlaneDomainToCircleDomain; /// @notice Token symbol => address of token on local chain. mapping(string => IERC20) public tokenSymbolToAddress; /// @notice Local chain token address => token symbol. mapping(address => string) public tokenAddressToSymbol; /** * @notice Emits the nonce of the Circle message when a token is bridged. * @param nonce The nonce of the Circle message. */ event BridgedToken(uint64 nonce); /** * @notice Emitted when the Hyperlane domain to Circle domain mapping is updated. * @param hyperlaneDomain The Hyperlane domain. * @param circleDomain The Circle domain. */ event DomainAdded(uint32 indexed hyperlaneDomain, uint32 circleDomain); /** * @notice Emitted when a local token and its token symbol have been added. */ event TokenAdded(address indexed token, string indexed symbol); /** * @notice Emitted when a local token and its token symbol have been removed. */ event TokenRemoved(address indexed token, string indexed symbol); modifier onlyLiquidityLayerRouter() { require(msg.sender == liquidityLayerRouter, "!liquidityLayerRouter"); _; } /** * @param _owner The new owner. * @param _circleBridge The CircleBridge contract. * @param _circleMessageTransmitter The Circle MessageTransmitter contract. * @param _liquidityLayerRouter The LiquidityLayerRouter contract. */ function initialize( address _owner, address _circleBridge, address _circleMessageTransmitter, address _liquidityLayerRouter ) public initializer { // Transfer ownership of the contract to deployer _transferOwnership(_owner); // Set the addresses for the ACM and IGP to address(0) - they aren't used. _setAbacusConnectionManager(address(0)); _setInterchainGasPaymaster(address(0)); circleBridge = ICircleBridge(_circleBridge); circleMessageTransmitter = ICircleMessageTransmitter( _circleMessageTransmitter ); liquidityLayerRouter = _liquidityLayerRouter; } function sendTokens( uint32 _destinationDomain, bytes32, // _recipientAddress, unused address _token, uint256 _amount ) external onlyLiquidityLayerRouter returns (bytes memory) { string memory _tokenSymbol = tokenAddressToSymbol[_token]; require( bytes(_tokenSymbol).length > 0, "CircleBridgeAdapter: Unknown token" ); uint32 _circleDomain = hyperlaneDomainToCircleDomain[ _destinationDomain ]; bytes32 _remoteRouter = routers[_destinationDomain]; require( _remoteRouter != bytes32(0), "CircleBridgeAdapter: No router for domain" ); // Approve the token to Circle. We assume that the LiquidityLayerRouter // has already transferred the token to this contract. require( IERC20(_token).approve(address(circleBridge), _amount), "!approval" ); uint64 _nonce = circleBridge.depositForBurn( _amount, _circleDomain, _remoteRouter, // Mint to the remote router _token ); emit BridgedToken(_nonce); return abi.encode(_nonce, _tokenSymbol); } // Returns the token and amount sent function receiveTokens( uint32 _originDomain, // Hyperlane domain address _recipient, uint256 _amount, bytes calldata _adapterData // The adapter data from the message ) external onlyLiquidityLayerRouter returns (address, uint256) { // The origin Circle domain uint32 _originCircleDomain = hyperlaneDomainToCircleDomain[ _originDomain ]; // Get the token symbol and nonce of the transfer from the _adapterData (uint64 _nonce, string memory _tokenSymbol) = abi.decode( _adapterData, (uint64, string) ); // Require the circle message to have been processed bytes32 _nonceId = _circleNonceId(_originCircleDomain, _nonce); require( circleMessageTransmitter.usedNonces(_nonceId), "Circle message not processed yet" ); IERC20 _token = tokenSymbolToAddress[_tokenSymbol]; require( address(_token) != address(0), "CircleBridgeAdapter: Unknown token" ); // Transfer the token out to the recipient // TODO: use safeTransfer // Circle doesn't charge any fee, so we can safely transfer out the // exact amount that was bridged over. require(_token.transfer(_recipient, _amount), "!transfer out"); return (address(_token), _amount); } // This contract is only a Router to be aware of remote router addresses, // and doesn't actually send/handle Hyperlane messages directly function _handle( uint32, // origin bytes32, // sender bytes calldata // message ) internal pure override { revert("No messages expected"); } function addDomain(uint32 _hyperlaneDomain, uint32 _circleDomain) external onlyOwner { hyperlaneDomainToCircleDomain[_hyperlaneDomain] = _circleDomain; emit DomainAdded(_hyperlaneDomain, _circleDomain); } function addToken(address _token, string calldata _tokenSymbol) external onlyOwner { require( _token != address(0) && bytes(_tokenSymbol).length > 0, "Cannot add default values" ); // Require the token and token symbol to be unset. address _existingToken = address(tokenSymbolToAddress[_tokenSymbol]); require(_existingToken == address(0), "token symbol already has token"); string memory _existingSymbol = tokenAddressToSymbol[_token]; require( bytes(_existingSymbol).length == 0, "token already has token symbol" ); tokenAddressToSymbol[_token] = _tokenSymbol; tokenSymbolToAddress[_tokenSymbol] = IERC20(_token); emit TokenAdded(_token, _tokenSymbol); } function removeToken(address _token, string calldata _tokenSymbol) external onlyOwner { // Require the provided token and token symbols match what's in storage. address _existingToken = address(tokenSymbolToAddress[_tokenSymbol]); require(_existingToken == _token, "Token mismatch"); string memory _existingSymbol = tokenAddressToSymbol[_token]; require( keccak256(bytes(_existingSymbol)) == keccak256(bytes(_tokenSymbol)), "Token symbol mismatch" ); // Delete them from storage. delete tokenSymbolToAddress[_tokenSymbol]; delete tokenAddressToSymbol[_token]; emit TokenRemoved(_token, _tokenSymbol); } /** * @notice Gets the Circle nonce ID by hashing _originCircleDomain and _nonce. * @param _originCircleDomain Domain of chain where the transfer originated * @param _nonce The unique identifier for the message from source to destination * @return hash of source and nonce */ function _circleNonceId(uint32 _originCircleDomain, uint64 _nonce) internal pure returns (bytes32) { // The hash is of a uint256 nonce, not a uint64 one. return keccak256(abi.encodePacked(_originCircleDomain, uint256(_nonce))); } } // File contracts/middleware/liquidity-layer/interfaces/ILiquidityLayerMessageRecipient.sol pragma solidity ^0.8.13; interface ILiquidityLayerMessageRecipient { function handleWithTokens( uint32 _origin, bytes32 _sender, bytes calldata _message, address _token, uint256 _amount ) external; } // File contracts/middleware/liquidity-layer/LiquidityLayerRouter.sol pragma solidity ^0.8.13; contract LiquidityLayerRouter is Router { // Token bridge => adapter address mapping(string => address) public liquidityLayerAdapters; event LiquidityLayerAdapterSet(string indexed bridge, address adapter); function initialize( address _owner, address _abacusConnectionManager, address _interchainGasPaymaster ) public initializer { // Transfer ownership of the contract to deployer _transferOwnership(_owner); // Set the addresses for the ACM and IGP // Alternatively, this could be done later in an initialize method _setAbacusConnectionManager(_abacusConnectionManager); _setInterchainGasPaymaster(_interchainGasPaymaster); } function dispatchWithTokens( uint32 _destinationDomain, bytes32 _recipientAddress, bytes calldata _messageBody, address _token, uint256 _amount, string calldata _bridge ) external payable { ILiquidityLayerAdapter _adapter = _getAdapter(_bridge); // Transfer the tokens to the adapter // TODO: use safeTransferFrom // TODO: Are there scenarios where a transferFrom fails and it doesn't revert? require( IERC20(_token).transferFrom(msg.sender, address(_adapter), _amount), "!transfer in" ); // Reverts if the bridge was unsuccessful. // Gets adapter-specific data that is encoded into the message // ultimately sent via Hyperlane. bytes memory _adapterData = _adapter.sendTokens( _destinationDomain, _recipientAddress, _token, _amount ); // The user's message "wrapped" with metadata required by this middleware bytes memory _messageWithMetadata = abi.encode( TypeCasts.addressToBytes32(msg.sender), _recipientAddress, // The "user" recipient _amount, // The amount of the tokens sent over the bridge _bridge, // The destination token bridge ID _adapterData, // The adapter-specific data _messageBody // The "user" message ); // Dispatch the _messageWithMetadata to the destination's LiquidityLayerRouter. _dispatchWithGas(_destinationDomain, _messageWithMetadata, msg.value); } // Handles a message from an enrolled remote LiquidityLayerRouter function _handle( uint32 _origin, bytes32, // _sender, unused bytes calldata _message ) internal override { // Decode the message with metadata, "unwrapping" the user's message body ( bytes32 _originalSender, bytes32 _userRecipientAddress, uint256 _amount, string memory _bridge, bytes memory _adapterData, bytes memory _userMessageBody ) = abi.decode( _message, (bytes32, bytes32, uint256, string, bytes, bytes) ); ILiquidityLayerMessageRecipient _userRecipient = ILiquidityLayerMessageRecipient( TypeCasts.bytes32ToAddress(_userRecipientAddress) ); // Reverts if the adapter hasn't received the bridged tokens yet (address _token, uint256 _receivedAmount) = _getAdapter(_bridge) .receiveTokens( _origin, address(_userRecipient), _amount, _adapterData ); _userRecipient.handleWithTokens( _origin, _originalSender, _userMessageBody, _token, _receivedAmount ); } function setLiquidityLayerAdapter(string calldata _bridge, address _adapter) external onlyOwner { liquidityLayerAdapters[_bridge] = _adapter; emit LiquidityLayerAdapterSet(_bridge, _adapter); } function _getAdapter(string memory _bridge) internal view returns (ILiquidityLayerAdapter _adapter) { _adapter = ILiquidityLayerAdapter(liquidityLayerAdapters[_bridge]); // Require the adapter to have been set require(address(_adapter) != address(0), "No adapter found for bridge"); } } // File @openzeppelin/contracts-upgradeable/token/ERC20/[email protected] // 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 IERC20Upgradeable { /** * @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); } // File @openzeppelin/contracts-upgradeable/token/ERC20/extensions/[email protected] // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.0; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20MetadataUpgradeable is IERC20Upgradeable { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); } // File @openzeppelin/contracts-upgradeable/token/ERC20/[email protected] // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/ERC20.sol) pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20Upgradeable, IERC20MetadataUpgradeable { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The default value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ function __ERC20_init(string memory name_, string memory symbol_) internal onlyInitializing { __ERC20_init_unchained(name_, symbol_); } function __ERC20_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `to` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address to, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _transfer(owner, to, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on * `transferFrom`. This is semantically equivalent to an infinite approval. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _approve(owner, spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * NOTE: Does not update the allowance if the current allowance * is the maximum `uint256`. * * Requirements: * * - `from` and `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. * - the caller must have allowance for ``from``'s tokens of at least * `amount`. */ function transferFrom( address from, address to, uint256 amount ) public virtual override returns (bool) { address spender = _msgSender(); _spendAllowance(from, spender, amount); _transfer(from, to, amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { address owner = _msgSender(); _approve(owner, spender, allowance(owner, spender) + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { address owner = _msgSender(); uint256 currentAllowance = allowance(owner, spender); require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); unchecked { _approve(owner, spender, currentAllowance - subtractedValue); } return true; } /** * @dev Moves `amount` of tokens from `sender` to `recipient`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. */ function _transfer( address from, address to, uint256 amount ) internal virtual { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(from, to, amount); uint256 fromBalance = _balances[from]; require(fromBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[from] = fromBalance - amount; } _balances[to] += amount; emit Transfer(from, to, amount); _afterTokenTransfer(from, to, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); _afterTokenTransfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; } _totalSupply -= amount; emit Transfer(account, address(0), amount); _afterTokenTransfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve( address owner, address spender, uint256 amount ) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Updates `owner` s allowance for `spender` based on spent `amount`. * * Does not update the allowance amount in case of infinite allowance. * Revert if not enough allowance is available. * * Might emit an {Approval} event. */ function _spendAllowance( address owner, address spender, uint256 amount ) internal virtual { uint256 currentAllowance = allowance(owner, spender); if (currentAllowance != type(uint256).max) { require(currentAllowance >= amount, "ERC20: insufficient allowance"); unchecked { _approve(owner, spender, currentAllowance - amount); } } } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 amount ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual {} /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[45] private __gap; } // File contracts/mock/MockToken.sol pragma solidity ^0.8.13; contract MockToken is ERC20Upgradeable { function mint(address account, uint256 amount) external { _mint(account, amount); } function burn(uint256 _amount) external { _burn(msg.sender, _amount); } } // File contracts/mock/MockCircleBridge.sol pragma solidity ^0.8.13; contract MockCircleBridge is ICircleBridge { uint64 public nextNonce = 0; MockToken token; constructor(MockToken _token) { token = _token; } function depositForBurn( uint256 _amount, uint32, bytes32, address _burnToken ) external returns (uint64 _nonce) { nextNonce = nextNonce + 1; _nonce = nextNonce; require(address(token) == _burnToken); token.transferFrom(msg.sender, address(this), _amount); token.burn(_amount); } function depositForBurnWithCaller( uint256, uint32, bytes32, address, bytes32 ) external returns (uint64 _nonce) { nextNonce = nextNonce + 1; _nonce = nextNonce; } } // File contracts/mock/MockCircleMessageTransmitter.sol pragma solidity ^0.8.13; contract MockCircleMessageTransmitter is ICircleMessageTransmitter { mapping(bytes32 => bool) processedNonces; MockToken token; constructor(MockToken _token) { token = _token; } function receiveMessage(bytes memory, bytes calldata) external pure returns (bool success) { success = true; } function hashSourceAndNonce(uint32 _source, uint256 _nonce) public pure returns (bytes32) { return keccak256(abi.encodePacked(_source, _nonce)); } function process( bytes32 _nonceId, address _recipient, uint256 _amount ) public { processedNonces[_nonceId] = true; token.mint(_recipient, _amount); } function usedNonces(bytes32 _nonceId) external view returns (bool) { return processedNonces[_nonceId]; } } // File contracts/mock/MockInbox.sol pragma solidity ^0.8.0; contract MockInbox { using TypeCasts for bytes32; struct PendingMessage { uint32 originDomain; bytes32 sender; bytes32 recipient; bytes messageBody; } mapping(uint256 => PendingMessage) pendingMessages; uint256 totalMessages = 0; uint256 messageProcessed = 0; function addPendingMessage( uint32 _originDomain, bytes32 _sender, bytes32 _recipient, bytes memory _messageBody ) external { pendingMessages[totalMessages] = PendingMessage( _originDomain, _sender, _recipient, _messageBody ); totalMessages += 1; } function processNextPendingMessage() public { PendingMessage memory pendingMessage = pendingMessages[ messageProcessed ]; address recipient = pendingMessage.recipient.bytes32ToAddress(); IMessageRecipient(recipient).handle( // This is completely arbitrary and consumers should not rely // on domain handling in the mock mailbox contracts. pendingMessage.originDomain, pendingMessage.sender, pendingMessage.messageBody ); messageProcessed += 1; } } // File contracts/mock/MockOutbox.sol pragma solidity ^0.8.0; contract MockOutbox { MockInbox inbox; uint32 domain; using TypeCasts for address; constructor(uint32 _domain, address _inbox) { domain = _domain; inbox = MockInbox(_inbox); } function dispatch( uint32, bytes32 _recipientAddress, bytes calldata _messageBody ) external returns (uint256) { inbox.addPendingMessage( domain, msg.sender.addressToBytes32(), _recipientAddress, _messageBody ); return 1; } } // File contracts/mock/MockHyperlaneEnvironment.sol pragma solidity ^0.8.13; contract MockHyperlaneEnvironment { uint32 originDomain; uint32 destinationDomain; mapping(uint32 => MockOutbox) public outboxes; mapping(uint32 => MockInbox) public inboxes; mapping(uint32 => AbacusConnectionManager) public connectionManagers; mapping(uint32 => InterchainQueryRouter) public queryRouters; constructor(uint32 _originDomain, uint32 _destinationDomain) { originDomain = _originDomain; destinationDomain = _destinationDomain; MockInbox originInbox = new MockInbox(); MockOutbox originOutbox = new MockOutbox( _originDomain, address(originInbox) ); MockInbox destinationInbox = new MockInbox(); MockOutbox destinationOutbox = new MockOutbox( _destinationDomain, address(destinationInbox) ); outboxes[_originDomain] = originOutbox; outboxes[_destinationDomain] = destinationOutbox; inboxes[_originDomain] = destinationInbox; inboxes[_destinationDomain] = originInbox; AbacusConnectionManager originManager = new AbacusConnectionManager(); AbacusConnectionManager destinationManager = new AbacusConnectionManager(); originManager.setOutbox(address(originOutbox)); destinationManager.enrollInbox( _destinationDomain, address(originInbox) ); destinationManager.setOutbox(address(destinationOutbox)); originManager.enrollInbox(_originDomain, address(destinationInbox)); connectionManagers[_originDomain] = originManager; connectionManagers[_destinationDomain] = destinationManager; InterchainQueryRouter originQueryRouter = new InterchainQueryRouter(); InterchainQueryRouter destinationQueryRouter = new InterchainQueryRouter(); originQueryRouter.initialize( address(this), address(originManager), address(0) ); destinationQueryRouter.initialize( address(this), address(destinationManager), address(0) ); originQueryRouter.enrollRemoteRouter( _destinationDomain, TypeCasts.addressToBytes32(address(destinationQueryRouter)) ); destinationQueryRouter.enrollRemoteRouter( _originDomain, TypeCasts.addressToBytes32(address(originQueryRouter)) ); queryRouters[_originDomain] = originQueryRouter; queryRouters[_destinationDomain] = destinationQueryRouter; } function connectionManager(uint32 _domain) public view returns (AbacusConnectionManager) { return connectionManagers[_domain]; } function processNextPendingMessage() public { inboxes[destinationDomain].processNextPendingMessage(); } function processNextPendingMessageFromDestination() public { inboxes[originDomain].processNextPendingMessage(); } } // File contracts/mock/MockInterchainAccountRouter.sol pragma solidity ^0.8.13; // ============ External Imports ============ /* * @title The Hello World App * @dev You can use this simple app as a starting point for your own application. */ contract MockInterchainAccountRouter is IInterchainAccountRouter { struct PendingCall { uint32 originDomain; address sender; bytes serializedCalls; } uint32 public originDomain; mapping(uint256 => PendingCall) pendingCalls; uint256 totalCalls = 0; uint256 callsProcessed = 0; bytes constant bytecode = type(OwnableMulticall).creationCode; bytes32 constant bytecodeHash = bytes32(keccak256(bytecode)); event InterchainAccountCreated( uint32 indexed origin, address sender, address account ); constructor(uint32 _originDomain) { originDomain = _originDomain; } function dispatch(uint32 _destinationDomain, Call[] calldata calls) public returns (uint256) { return _dispatch(_destinationDomain, calls); } function dispatch( uint32 _destinationDomain, address target, bytes calldata data ) external returns (uint256) { Call[] memory calls = new Call[](1); calls[0] = Call({to: target, data: data}); return _dispatch(_destinationDomain, calls); } function _dispatch(uint32, Call[] memory calls) internal returns (uint256) { pendingCalls[totalCalls] = PendingCall( originDomain, msg.sender, abi.encode(calls) ); totalCalls += 1; return totalCalls; } function getInterchainAccount(uint32 _origin, address _sender) public view returns (address) { return _getInterchainAccount(_salt(_origin, _sender)); } function getDeployedInterchainAccount(uint32 _origin, address _sender) public returns (OwnableMulticall) { bytes32 salt = _salt(_origin, _sender); address interchainAccount = _getInterchainAccount(salt); if (!Address.isContract(interchainAccount)) { interchainAccount = Create2.deploy(0, salt, bytecode); emit InterchainAccountCreated(_origin, _sender, interchainAccount); } return OwnableMulticall(interchainAccount); } function _salt(uint32 _origin, address _sender) internal pure returns (bytes32) { return bytes32(abi.encodePacked(_origin, _sender)); } function _getInterchainAccount(bytes32 salt) internal view returns (address) { return Create2.computeAddress(salt, bytecodeHash); } function processNextPendingCall() public { PendingCall memory pendingCall = pendingCalls[callsProcessed]; Call[] memory calls = abi.decode(pendingCall.serializedCalls, (Call[])); getDeployedInterchainAccount(originDomain, pendingCall.sender) .proxyCalls(calls); } } // File contracts/Outbox.sol pragma solidity >=0.8.0; // ============ Internal Imports ============ /** * @title Outbox * @author Celo Labs Inc. * @notice Accepts messages to be dispatched to remote chains, * constructs a Merkle tree of the messages, * and accepts signatures from a bonded Validator * which notarize the Merkle tree roots. * Accepts submissions of fraudulent signatures * by the Validator and slashes the Validator in this case. */ contract Outbox is IOutbox, Versioned, MerkleTreeManager, Mailbox { // ============ Libraries ============ using MerkleLib for MerkleLib.Tree; using TypeCasts for address; // ============ Constants ============ // Maximum bytes per message = 2 KiB // (somewhat arbitrarily set to begin) uint256 public constant MAX_MESSAGE_BODY_BYTES = 2 * 2**10; // ============ Enums ============ // States: // 0 - UnInitialized - before initialize function is called // note: the contract is initialized at deploy time, so it should never be in this state // 1 - Active - as long as the contract has not become fraudulent // 2 - Failed - after a valid fraud proof has been submitted; // contract will no longer accept updates or new messages enum States { UnInitialized, Active, Failed } // ============ Public Storage Variables ============ // Cached checkpoints, mapping root => leaf index. // Cached checkpoints must have index > 0 as the presence of such // a checkpoint cannot be distinguished from its absence. mapping(bytes32 => uint256) public cachedCheckpoints; // The latest cached root bytes32 public latestCachedRoot; // Current state of contract States public state; // ============ Upgrade Gap ============ // gap for upgrade safety uint256[47] private __GAP; // ============ Events ============ /** * @notice Emitted when a checkpoint is cached. * @param root Merkle root * @param index Leaf index */ event CheckpointCached(bytes32 indexed root, uint256 indexed index); /** * @notice Emitted when a new message is dispatched via Abacus * @param leafIndex Index of message's leaf in merkle tree * @param message Raw bytes of message */ event Dispatch(uint256 indexed leafIndex, bytes message); event Fail(); // ============ Constructor ============ constructor(uint32 _localDomain) Mailbox(_localDomain) {} // solhint-disable-line no-empty-blocks // ============ Initializer ============ function initialize(address _validatorManager) external initializer { __Mailbox_initialize(_validatorManager); state = States.Active; } // ============ Modifiers ============ /** * @notice Ensures that contract state != FAILED when the function is called */ modifier notFailed() { require(state != States.Failed, "failed state"); _; } // ============ External Functions ============ /** * @notice Dispatch the message it to the destination domain & recipient * @dev Format the message, insert its hash into Merkle tree, * and emit `Dispatch` event with message information. * @param _destinationDomain Domain of destination chain * @param _recipientAddress Address of recipient on destination chain as bytes32 * @param _messageBody Raw bytes content of message * @return The leaf index of the dispatched message's hash in the Merkle tree. */ function dispatch( uint32 _destinationDomain, bytes32 _recipientAddress, bytes calldata _messageBody ) external override notFailed returns (uint256) { require(_messageBody.length <= MAX_MESSAGE_BODY_BYTES, "msg too long"); // The leaf has not been inserted yet at this point uint256 _leafIndex = count(); // format the message into packed bytes bytes memory _message = Message.formatMessage( localDomain, msg.sender.addressToBytes32(), _destinationDomain, _recipientAddress, _messageBody ); // insert the hashed message into the Merkle tree bytes32 _messageHash = keccak256( abi.encodePacked(_message, _leafIndex) ); tree.insert(_messageHash); emit Dispatch(_leafIndex, _message); return _leafIndex; } /** * @notice Caches the current merkle root and index. * @dev emits CheckpointCached event */ function cacheCheckpoint() external override notFailed { (bytes32 _root, uint256 _index) = latestCheckpoint(); require(_index > 0, "!index"); cachedCheckpoints[_root] = _index; latestCachedRoot = _root; emit CheckpointCached(_root, _index); } /** * @notice Set contract state to FAILED. * @dev Called by the validator manager when fraud is proven. */ function fail() external override onlyValidatorManager { // set contract to FAILED state = States.Failed; emit Fail(); } /** * @notice Returns the latest entry in the checkpoint cache. * @return root Latest cached root * @return index Latest cached index */ function latestCachedCheckpoint() external view returns (bytes32 root, uint256 index) { root = latestCachedRoot; index = cachedCheckpoints[root]; } /** * @notice Returns the number of inserted leaves in the tree */ function count() public view returns (uint256) { return tree.count; } /** * @notice Returns a checkpoint representing the current merkle tree. * @return root The root of the Outbox's merkle tree. * @return index The index of the last element in the tree. */ function latestCheckpoint() public view returns (bytes32, uint256) { return (root(), count() - 1); } } // File contracts/test/bad-recipient/BadRecipient1.sol pragma solidity >=0.8.0; contract BadRecipient1 is IMessageRecipient { function handle( uint32, bytes32, bytes calldata ) external pure override { assembly { revert(0, 0) } } } // File contracts/test/bad-recipient/BadRecipient3.sol pragma solidity >=0.8.0; contract BadRecipient3 is IMessageRecipient { function handle( uint32, bytes32, bytes calldata ) external pure override { assembly { mstore(0, 0xabcdef) revert(0, 32) } } } // File contracts/test/bad-recipient/BadRecipient5.sol pragma solidity >=0.8.0; contract BadRecipient5 is IMessageRecipient { function handle( uint32, bytes32, bytes calldata ) external pure override { require(false, "no can do"); } } // File contracts/test/bad-recipient/BadRecipient6.sol pragma solidity >=0.8.0; contract BadRecipient6 is IMessageRecipient { function handle( uint32, bytes32, bytes calldata ) external pure override { require(false); // solhint-disable-line reason-string } } // File contracts/test/MysteryMath.sol pragma solidity >=0.8.0; abstract contract MysteryMath { uint256 public stateVar; function setState(uint256 _var) external { stateVar = _var; } function getState() external view returns (uint256) { return stateVar; } function doMath(uint256 a, uint256 b) external pure virtual returns (uint256 _result); } // File contracts/test/MysteryMathV1.sol pragma solidity >=0.8.0; contract MysteryMathV1 is MysteryMath { uint32 public immutable version; constructor() { version = 1; } function doMath(uint256 a, uint256 b) external pure override returns (uint256 _result) { _result = a + b; } } // File contracts/test/MysteryMathV2.sol pragma solidity >=0.8.0; contract MysteryMathV2 is MysteryMath { uint32 public immutable version; constructor() { version = 2; } function doMath(uint256 a, uint256 b) external pure override returns (uint256 _result) { _result = a * b; } } // File contracts/test/TestAbacusConnectionClient.sol pragma solidity >=0.6.11; contract TestAbacusConnectionClient is AbacusConnectionClient { function initialize(address _abacusConnectionManager) external initializer { __AbacusConnectionClient_initialize(_abacusConnectionManager); } function outbox() external view returns (IOutbox) { return _outbox(); } function isInbox(address _potentialInbox) external view returns (bool) { return _isInbox(_potentialInbox); } function localDomain() external view returns (uint32) { return _localDomain(); } } // File contracts/test/TestInbox.sol pragma solidity >=0.8.0; contract TestInbox is Inbox { using Message for bytes32; using TypeCasts for bytes32; constructor(uint32 _localDomain) Inbox(_localDomain) {} // solhint-disable-line no-empty-blocks function testBranchRoot( bytes32 leaf, bytes32[32] calldata proof, uint256 index ) external pure returns (bytes32) { return MerkleLib.branchRoot(leaf, proof, index); } function testProcess(bytes calldata _message, uint256 leafIndex) external { bytes32 _messageHash = keccak256(abi.encodePacked(_message, leafIndex)); _process(_message, _messageHash); } function testHandle( uint32 origin, bytes32 sender, bytes32 recipient, bytes calldata body ) external { IMessageRecipient(recipient.bytes32ToAddress()).handle( origin, sender, body ); } function setMessageStatus(bytes32 _leaf, MessageStatus status) external { messages[_leaf] = status; } function getRevertMsg(bytes calldata _res) internal pure returns (string memory) { // If the _res length is less than 68, then the transaction failed // silently (without a revert message) if (_res.length < 68) return "Transaction reverted silently"; // Remove the selector (first 4 bytes) and decode revert string return abi.decode(_res[4:], (string)); } } // File contracts/test/TestLiquidityLayerMessageRecipient.sol pragma solidity ^0.8.13; contract TestLiquidityLayerMessageRecipient is ILiquidityLayerMessageRecipient { event HandledWithTokens( uint32 origin, bytes32 sender, bytes message, address token, uint256 amount ); function handleWithTokens( uint32 _origin, bytes32 _sender, bytes calldata _message, address _token, uint256 _amount ) external { emit HandledWithTokens(_origin, _sender, _message, _token, _amount); } } // File contracts/test/TestMailbox.sol pragma solidity >=0.8.0; contract TestMailbox is Mailbox { constructor(uint32 _localDomain) Mailbox(_localDomain) {} function initialize(address _validatorManager) external initializer { __Mailbox_initialize(_validatorManager); } } // File contracts/test/TestMerkle.sol pragma solidity >=0.8.0; contract TestMerkle is MerkleTreeManager { using MerkleLib for MerkleLib.Tree; // solhint-disable-next-line no-empty-blocks constructor() MerkleTreeManager() {} function insert(bytes32 _node) external { tree.insert(_node); } function branchRoot( bytes32 _leaf, bytes32[32] calldata _proof, uint256 _index ) external pure returns (bytes32 _node) { return MerkleLib.branchRoot(_leaf, _proof, _index); } /** * @notice Returns the number of inserted leaves in the tree */ function count() public view returns (uint256) { return tree.count; } } // File contracts/test/TestMessage.sol pragma solidity >=0.6.11; contract TestMessage { using Message for bytes; function body(bytes calldata _message) external pure returns (bytes calldata _body) { (, , , , _body) = _message.destructure(); } function origin(bytes calldata _message) external pure returns (uint32 _origin) { (_origin, , , , ) = _message.destructure(); } function sender(bytes calldata _message) external pure returns (bytes32 _sender) { (, _sender, , , ) = _message.destructure(); } function destination(bytes calldata _message) external pure returns (uint32 _destination) { (, , _destination, , ) = _message.destructure(); } function recipient(bytes calldata _message) external pure returns (bytes32 _recipient) { (, , , _recipient, ) = _message.destructure(); } function recipientAddress(bytes calldata _message) external pure returns (address _recipient) { (, , , _recipient, ) = _message.destructureAddresses(); } function leaf(bytes calldata _message, uint256 _leafIndex) external pure returns (bytes32) { return _message.leaf(_leafIndex); } } // File @openzeppelin/contracts/utils/[email protected] // OpenZeppelin Contracts v4.4.1 (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @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] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } } // File @openzeppelin/contracts/utils/cryptography/[email protected] // OpenZeppelin Contracts (last updated v4.5.0) (utils/cryptography/ECDSA.sol) pragma solidity ^0.8.0; /** * @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 } 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"); } else if (error == RecoverError.InvalidSignatureV) { revert("ECDSA: invalid signature 'v' 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) { // Check the signature length // - case 65: r,s,v signature (standard) // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._ 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. 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 if (signature.length == 64) { bytes32 r; bytes32 vs; // ecrecover takes the signature parameters, and the only way to get them // currently is to use assembly. assembly { r := mload(add(signature, 0x20)) vs := mload(add(signature, 0x40)) } return tryRecover(hash, r, vs); } 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 (v != 27 && v != 28) { return (address(0), RecoverError.InvalidSignatureV); } // 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)); } } // File interfaces/IMultisigValidatorManager.sol pragma solidity >=0.6.0; interface IMultisigValidatorManager { function domain() external view returns (uint32); // The domain hash of the validator set's outbox chain. function domainHash() external view returns (bytes32); function threshold() external view returns (uint256); } // File contracts/validator-manager/MultisigValidatorManager.sol pragma solidity >=0.8.0; // ============ External Imports ============ // ============ Internal Imports ============ /** * @title MultisigValidatorManager * @notice Manages an ownable set of validators that ECDSA sign checkpoints to * reach a quorum. */ abstract contract MultisigValidatorManager is IMultisigValidatorManager, Ownable, Versioned { // ============ Libraries ============ using EnumerableSet for EnumerableSet.AddressSet; // ============ Immutables ============ // The domain of the validator set's outbox chain. uint32 public immutable domain; // The domain hash of the validator set's outbox chain. bytes32 public immutable domainHash; // ============ Mutable Storage ============ // The minimum threshold of validator signatures to constitute a quorum. uint256 public threshold; // The set of validators. EnumerableSet.AddressSet private validatorSet; // ============ Events ============ /** * @notice Emitted when a validator is enrolled in the validator set. * @param validator The address of the validator. * @param validatorCount The new number of enrolled validators in the validator set. */ event ValidatorEnrolled(address indexed validator, uint256 validatorCount); /** * @notice Emitted when a validator is unenrolled from the validator set. * @param validator The address of the validator. * @param validatorCount The new number of enrolled validators in the validator set. */ event ValidatorUnenrolled( address indexed validator, uint256 validatorCount ); /** * @notice Emitted when the quorum threshold is set. * @param threshold The new quorum threshold. */ event ThresholdSet(uint256 threshold); // ============ Constructor ============ /** * @dev Reverts if `_validators` has any duplicates. * @param _domain The domain of the outbox the validator set is for. * @param _validators The set of validator addresses. * @param _threshold The quorum threshold. Must be greater than or equal * to the length of `_validators`. */ constructor( uint32 _domain, address[] memory _validators, uint256 _threshold ) Ownable() { // Set immutables. domain = _domain; domainHash = _domainHash(_domain); // Enroll validators. Reverts if there are any duplicates. uint256 _numValidators = _validators.length; for (uint256 i = 0; i < _numValidators; i++) { _enrollValidator(_validators[i]); } _setThreshold(_threshold); } // ============ External Functions ============ /** * @notice Enrolls a validator into the validator set. * @dev Reverts if `_validator` is already in the validator set. * @param _validator The validator to add to the validator set. */ function enrollValidator(address _validator) external onlyOwner { _enrollValidator(_validator); } /** * @notice Unenrolls a validator from the validator set. * @dev Reverts if `_validator` is not in the validator set. * @param _validator The validator to remove from the validator set. */ function unenrollValidator(address _validator) external onlyOwner { _unenrollValidator(_validator); } /** * @notice Sets the quorum threshold. * @param _threshold The new quorum threshold. */ function setThreshold(uint256 _threshold) external onlyOwner { _setThreshold(_threshold); } /** * @notice Gets the addresses of the current validator set. * @dev There are no ordering guarantees due to the semantics of EnumerableSet.AddressSet. * @return The addresses of the validator set. */ function validators() external view returns (address[] memory) { uint256 _numValidators = validatorSet.length(); address[] memory _validators = new address[](_numValidators); for (uint256 i = 0; i < _numValidators; i++) { _validators[i] = validatorSet.at(i); } return _validators; } // ============ Public Functions ============ /** * @notice Returns whether provided signatures over a checkpoint constitute * a quorum of validator signatures. * @dev Reverts if `_signatures` is not sorted in ascending order by the signer * address, which is required for duplicate detection. * @dev Does not revert if a signature's signer is not in the validator set. * @param _root The merkle root of the checkpoint. * @param _index The index of the checkpoint. * @param _signatures Signatures over the checkpoint to be checked for a validator * quorum. Must be sorted in ascending order by signer address. * @return TRUE iff `_signatures` constitute a quorum of validator signatures over * the checkpoint. */ function isQuorum( bytes32 _root, uint256 _index, bytes[] calldata _signatures ) public view returns (bool) { uint256 _numSignatures = _signatures.length; // If there are fewer signatures provided than the required quorum threshold, // this is not a quorum. if (_numSignatures < threshold) { return false; } // To identify duplicates, the signers recovered from _signatures // must be sorted in ascending order. previousSigner is used to // enforce ordering. address _previousSigner = address(0); uint256 _validatorSignatureCount = 0; for (uint256 i = 0; i < _numSignatures; i++) { address _signer = _recoverCheckpointSigner( _root, _index, _signatures[i] ); // Revert if the signer violates the required sort order. require(_previousSigner < _signer, "!sorted signers"); // If the signer is a validator, increment _validatorSignatureCount. if (isValidator(_signer)) { _validatorSignatureCount++; } _previousSigner = _signer; } return _validatorSignatureCount >= threshold; } /** * @notice Returns if `_validator` is enrolled in the validator set. * @param _validator The address of the validator. * @return TRUE iff `_validator` is enrolled in the validator set. */ function isValidator(address _validator) public view returns (bool) { return validatorSet.contains(_validator); } /** * @notice Returns the number of validators enrolled in the validator set. * @return The number of validators enrolled in the validator set. */ function validatorCount() public view returns (uint256) { return validatorSet.length(); } // ============ Internal Functions ============ /** * @notice Recovers the signer from a signature of a checkpoint. * @param _root The checkpoint's merkle root. * @param _index The checkpoint's index. * @param _signature Signature on the the checkpoint. * @return The signer of the checkpoint signature. **/ function _recoverCheckpointSigner( bytes32 _root, uint256 _index, bytes calldata _signature ) internal view returns (address) { bytes32 _digest = keccak256( abi.encodePacked(domainHash, _root, _index) ); return ECDSA.recover(ECDSA.toEthSignedMessageHash(_digest), _signature); } /** * @notice Enrolls a validator into the validator set. * @dev Reverts if `_validator` is already in the validator set. * @param _validator The validator to add to the validator set. */ function _enrollValidator(address _validator) internal { require(_validator != address(0), "zero address"); require(validatorSet.add(_validator), "already enrolled"); emit ValidatorEnrolled(_validator, validatorCount()); } /** * @notice Unenrolls a validator from the validator set. * @dev Reverts if the resulting validator set length is less than * the quorum threshold. * @dev Reverts if `_validator` is not in the validator set. * @param _validator The validator to remove from the validator set. */ function _unenrollValidator(address _validator) internal { require(validatorSet.remove(_validator), "!enrolled"); uint256 _numValidators = validatorCount(); require(_numValidators >= threshold, "violates quorum threshold"); emit ValidatorUnenrolled(_validator, _numValidators); } /** * @notice Sets the quorum threshold. * @param _threshold The new quorum threshold. */ function _setThreshold(uint256 _threshold) internal { require(_threshold > 0 && _threshold <= validatorCount(), "!range"); threshold = _threshold; emit ThresholdSet(_threshold); } /** * @notice Hash of `_domain` concatenated with "ABACUS" and deployment version. * @dev Domain hash is salted with deployment version to prevent validator signature replay. * @param _domain The domain to hash. */ function _domainHash(uint32 _domain) internal pure returns (bytes32) { if (VERSION > 0) { return keccak256(abi.encodePacked(_domain, "ABACUS", VERSION)); } else { // for backwards compatibility with initial deployment (VERSION == 0) return keccak256(abi.encodePacked(_domain, "ABACUS")); } } } // File contracts/test/TestMultisigValidatorManager.sol pragma solidity >=0.8.0; /** * This contract exists to test MultisigValidatorManager.sol, which is abstract * and cannot be deployed directly. */ contract TestMultisigValidatorManager is MultisigValidatorManager { // solhint-disable-next-line no-empty-blocks constructor( uint32 _domain, address[] memory _validators, uint256 _threshold ) MultisigValidatorManager(_domain, _validators, _threshold) {} /** * @notice Hash of domain concatenated with "ABACUS". * @dev This is a public getter of _domainHash to test with. * @param _domain The domain to hash. */ function getDomainHash(uint32 _domain) external pure returns (bytes32) { return _domainHash(_domain); } } // File contracts/test/TestOutbox.sol pragma solidity >=0.8.0; // ============ Internal Imports ============ contract TestOutbox is Outbox { constructor(uint32 _localDomain) Outbox(_localDomain) {} // solhint-disable-line no-empty-blocks /** * @notice Set the validator manager * @param _validatorManager Address of the validator manager */ function testSetValidatorManager(address _validatorManager) external { validatorManager = _validatorManager; } function proof() external view returns (bytes32[32] memory) { bytes32[32] memory _zeroes = MerkleLib.zeroHashes(); uint256 _index = tree.count - 1; bytes32[32] memory _proof; for (uint256 i = 0; i < 32; i++) { uint256 _ithBit = (_index >> i) & 0x01; if (_ithBit == 1) { _proof[i] = tree.branch[i]; } else { _proof[i] = _zeroes[i]; } } return _proof; } function branch() external view returns (bytes32[32] memory) { return tree.branch; } function branchRoot( bytes32 _item, bytes32[32] memory _branch, uint256 _index ) external pure returns (bytes32) { return MerkleLib.branchRoot(_item, _branch, _index); } } // File contracts/test/TestQuery.sol pragma solidity ^0.8.13; contract TestQuery { InterchainQueryRouter public router; event Owner(uint256, address); constructor(address _router) { router = InterchainQueryRouter(_router); } /** * @dev Fetches owner of InterchainQueryRouter on provided domain and passes along with provided secret to `this.receiveRouterOwner` */ function queryRouterOwner(uint32 domain, uint256 secret) external { Call memory call = Call({ to: TypeCasts.bytes32ToAddress(router.routers(domain)), data: abi.encodeWithSignature("owner()") }); bytes memory callback = bytes.concat( this.receiveRouterOwer.selector, bytes32(secret) ); router.query(domain, call, callback); } /** * @dev `msg.sender` must be restricted to `this.router` to prevent any local account from spoofing query data. */ function receiveRouterOwer(uint256 secret, address owner) external { require(msg.sender == address(router), "TestQuery: not from router"); emit Owner(secret, owner); } } // File contracts/test/TestQuerySender.sol pragma solidity >=0.8.0; contract TestQuerySender is Initializable { IInterchainQueryRouter queryRouter; address public lastAddressResult; uint256 public lastUint256Result; bytes32 public lastBytes32Result; event ReceivedAddressResult(address result); event ReceivedUint256Result(uint256 result); event ReceivedBytes32Result(bytes32 result); function initialize(address _queryRouterAddress) public initializer { queryRouter = IInterchainQueryRouter(_queryRouterAddress); } function queryAddress( uint32 _destinationDomain, address _target, bytes calldata _targetData ) public { queryRouter.query( _destinationDomain, Call({to: _target, data: _targetData}), abi.encodePacked(this.handleQueryAddressResult.selector) ); } function handleQueryAddressResult(address _result) public { emit ReceivedAddressResult(_result); lastAddressResult = _result; } function queryUint256( uint32 _destinationDomain, address _target, bytes calldata _targetData ) public { queryRouter.query( _destinationDomain, Call({to: _target, data: _targetData}), abi.encodePacked(this.handleQueryUint256Result.selector) ); } function handleQueryUint256Result(uint256 _result) public { emit ReceivedUint256Result(_result); lastUint256Result = _result; } function queryBytes32( uint32 _destinationDomain, address _target, bytes calldata _targetData ) public { queryRouter.query( _destinationDomain, Call({to: _target, data: _targetData}), abi.encodePacked(this.handleQueryBytes32Result.selector) ); } function handleQueryBytes32Result(bytes32 _result) public { emit ReceivedBytes32Result(_result); lastBytes32Result = _result; } } // File contracts/test/TestRecipient.sol pragma solidity >=0.8.0; contract TestRecipient is IMessageRecipient { bytes32 public lastSender; bytes public lastData; address public lastCaller; string public lastCallMessage; event ReceivedMessage( uint32 indexed origin, bytes32 indexed sender, string message ); event ReceivedCall(address indexed caller, uint256 amount, string message); function handle( uint32 _origin, bytes32 _sender, bytes calldata _data ) external override { emit ReceivedMessage(_origin, _sender, string(_data)); lastSender = _sender; lastData = _data; } function fooBar(uint256 amount, string calldata message) external { emit ReceivedCall(msg.sender, amount, message); lastCaller = msg.sender; lastCallMessage = message; } } // File contracts/test/TestRouter.sol pragma solidity >=0.6.11; contract TestRouter is Router { event InitializeOverload(); function initialize(address _abacusConnectionManager) external initializer { __Router_initialize(_abacusConnectionManager); emit InitializeOverload(); } function _handle( uint32, bytes32, bytes calldata ) internal pure override {} function isRemoteRouter(uint32 _domain, bytes32 _potentialRemoteRouter) external view returns (bool) { return _isRemoteRouter(_domain, _potentialRemoteRouter); } function mustHaveRemoteRouter(uint32 _domain) external view returns (bytes32) { return _mustHaveRemoteRouter(_domain); } function dispatch(uint32 _destination, bytes memory _msg) external { _dispatch(_destination, _msg); } function dispatchWithGas( uint32 _destination, bytes memory _msg, uint256 _gasPayment ) external payable { _dispatchWithGas(_destination, _msg, _gasPayment); } } // File contracts/test/TestSendReceiver.sol pragma solidity >=0.8.0; contract TestSendReceiver is IMessageRecipient { using TypeCasts for address; event Handled(bytes32 blockHash); function dispatchToSelf( IOutbox _outbox, IInterchainGasPaymaster _paymaster, uint32 _destinationDomain, bytes calldata _messageBody ) external payable { uint256 _leafIndex = _outbox.dispatch( _destinationDomain, address(this).addressToBytes32(), _messageBody ); uint256 _blockHashNum = uint256(previousBlockHash()); uint256 _value = msg.value; if (_blockHashNum % 5 == 0) { // Pay in two separate calls, resulting in 2 distinct events uint256 _half = _value / 2; _paymaster.payGasFor{value: _half}( address(_outbox), _leafIndex, _destinationDomain ); _paymaster.payGasFor{value: _value - _half}( address(_outbox), _leafIndex, _destinationDomain ); } else { // Pay the entire msg.value in one call _paymaster.payGasFor{value: _value}( address(_outbox), _leafIndex, _destinationDomain ); } } function handle( uint32, bytes32, bytes calldata ) external override { bytes32 blockHash = previousBlockHash(); bool isBlockHashEven = uint256(blockHash) % 2 == 0; require(isBlockHashEven, "block hash is odd"); emit Handled(blockHash); } function previousBlockHash() internal view returns (bytes32) { return blockhash(block.number - 1); } } // File contracts/test/TestTokenRecipient.sol pragma solidity >=0.8.0; contract TestTokenRecipient is ILiquidityLayerMessageRecipient { bytes32 public lastSender; bytes public lastData; address public lastToken; uint256 public lastAmount; address public lastCaller; string public lastCallMessage; event ReceivedMessage( uint32 indexed origin, bytes32 indexed sender, string message, address token, uint256 amount ); event ReceivedCall(address indexed caller, uint256 amount, string message); function handleWithTokens( uint32 _origin, bytes32 _sender, bytes calldata _data, address _token, uint256 _amount ) external override { emit ReceivedMessage(_origin, _sender, string(_data), _token, _amount); lastSender = _sender; lastData = _data; lastToken = _token; lastAmount = _amount; } function fooBar(uint256 amount, string calldata message) external { emit ReceivedCall(msg.sender, amount, message); lastCaller = msg.sender; lastCallMessage = message; } } // File contracts/test/TestValidatorManager.sol pragma solidity >=0.8.0; /** * Intended for testing Inbox.sol, which requires its validator manager * to be a contract. */ contract TestValidatorManager { function process( IInbox _inbox, bytes32 _root, uint256 _index, bytes calldata _message, bytes32[32] calldata _proof, uint256 _leafIndex ) external { _inbox.process(_root, _index, _message, _proof, _leafIndex); } } // File contracts/upgrade/UpgradeBeacon.sol pragma solidity >=0.8.0; // ============ External Imports ============ /** * @title UpgradeBeacon * @notice Stores the address of an implementation contract * and allows a controller to upgrade the implementation address * @dev This implementation combines the gas savings of having no function selectors * found in 0age's implementation: * https://github.com/dharma-eng/dharma-smart-wallet/blob/master/contracts/proxies/smart-wallet/UpgradeBeaconProxyV1.sol * With the added niceties of a safety check that each implementation is a contract * and an Upgrade event emitted each time the implementation is changed * found in OpenZeppelin's implementation: * https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/proxy/beacon/BeaconProxy.sol */ contract UpgradeBeacon { // ============ Immutables ============ // The controller is capable of modifying the implementation address address private immutable controller; // ============ Private Storage Variables ============ // The implementation address is held in storage slot zero. address private implementation; // ============ Events ============ // Upgrade event is emitted each time the implementation address is set // (including deployment) event Upgrade(address indexed implementation); // ============ Constructor ============ /** * @notice Validate the initial implementation and store it. * Store the controller immutably. * @param _initialImplementation Address of the initial implementation contract * @param _controller Address of the controller who can upgrade the implementation */ constructor(address _initialImplementation, address _controller) payable { _setImplementation(_initialImplementation); controller = _controller; } // ============ External Functions ============ /** * @notice For all callers except the controller, return the current implementation address. * If called by the Controller, update the implementation address * to the address passed in the calldata. * Note: this requires inline assembly because Solidity fallback functions * do not natively take arguments or return values. */ fallback() external payable { if (msg.sender != controller) { // if not called by the controller, // load implementation address from storage slot zero // and return it. assembly { mstore(0, sload(0)) return(0, 32) } } else { // if called by the controller, // load new implementation address from the first word of the calldata address _newImplementation; assembly { _newImplementation := calldataload(0) } // set the new implementation _setImplementation(_newImplementation); } } // ============ Private Functions ============ /** * @notice Perform checks on the new implementation address * then upgrade the stored implementation. * @param _newImplementation Address of the new implementation contract which will replace the old one */ function _setImplementation(address _newImplementation) private { // Require that the new implementation is different from the current one require(implementation != _newImplementation, "!upgrade"); // Require that the new implementation is a contract require( Address.isContract(_newImplementation), "implementation !contract" ); // set the new implementation implementation = _newImplementation; emit Upgrade(_newImplementation); } } // File contracts/upgrade/UpgradeBeaconController.sol pragma solidity >=0.8.0; // ============ Internal Imports ============ // ============ External Imports ============ /** * @title UpgradeBeaconController * @notice Set as the controller of UpgradeBeacon contract(s), * capable of changing their stored implementation address. * @dev This implementation is a minimal version inspired by 0age's implementation: * https://github.com/dharma-eng/dharma-smart-wallet/blob/master/contracts/upgradeability/DharmaUpgradeBeaconController.sol */ contract UpgradeBeaconController is Ownable { // ============ Events ============ event BeaconUpgraded(address indexed beacon, address implementation); // ============ External Functions ============ /** * @notice Modify the implementation stored in the UpgradeBeacon, * which will upgrade the implementation used by all * Proxy contracts using that UpgradeBeacon * @param _beacon Address of the UpgradeBeacon which will be updated * @param _implementation Address of the Implementation contract to upgrade the Beacon to */ function upgrade(address _beacon, address _implementation) external onlyOwner { // Require that the beacon is a contract require(Address.isContract(_beacon), "beacon !contract"); // Call into beacon and supply address of new implementation to update it. (bool _success, ) = _beacon.call(abi.encode(_implementation)); // Revert with message on failure (i.e. if the beacon is somehow incorrect). if (!_success) { assembly { returndatacopy(0, 0, returndatasize()) revert(0, returndatasize()) } } emit BeaconUpgraded(_beacon, _implementation); } } // File contracts/upgrade/UpgradeBeaconProxy.sol pragma solidity >=0.8.0; // ============ External Imports ============ /** * @title UpgradeBeaconProxy * @notice * Proxy contract which delegates all logic, including initialization, * to an implementation contract. * The implementation contract is stored within an Upgrade Beacon contract; * the implementation contract can be changed by performing an upgrade on the Upgrade Beacon contract. * The Upgrade Beacon contract for this Proxy is immutably specified at deployment. * @dev This implementation combines the gas savings of keeping the UpgradeBeacon address outside of contract storage * found in 0age's implementation: * https://github.com/dharma-eng/dharma-smart-wallet/blob/master/contracts/proxies/smart-wallet/UpgradeBeaconProxyV1.sol * With the added safety checks that the UpgradeBeacon and implementation are contracts at time of deployment * found in OpenZeppelin's implementation: * https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/proxy/beacon/BeaconProxy.sol */ contract UpgradeBeaconProxy { // ============ Immutables ============ // Upgrade Beacon address is immutable (therefore not kept in contract storage) address private immutable upgradeBeacon; // ============ Constructor ============ /** * @notice Validate that the Upgrade Beacon is a contract, then set its * address immutably within this contract. * Validate that the implementation is also a contract, * Then call the initialization function defined at the implementation. * The deployment will revert and pass along the * revert reason if the initialization function reverts. * @param _upgradeBeacon Address of the Upgrade Beacon to be stored immutably in the contract * @param _initializationCalldata Calldata supplied when calling the initialization function */ constructor(address _upgradeBeacon, bytes memory _initializationCalldata) payable { // Validate the Upgrade Beacon is a contract require(Address.isContract(_upgradeBeacon), "beacon !contract"); // set the Upgrade Beacon upgradeBeacon = _upgradeBeacon; // Validate the implementation is a contract address _implementation = _getImplementation(_upgradeBeacon); require( Address.isContract(_implementation), "beacon implementation !contract" ); // Call the initialization function on the implementation if (_initializationCalldata.length > 0) { _initialize(_implementation, _initializationCalldata); } } // ============ External Functions ============ /** * @notice Forwards all calls with data to _fallback() * No public functions are declared on the contract, so all calls hit fallback */ fallback() external payable { _fallback(); } /** * @notice Forwards all calls with no data to _fallback() */ receive() external payable { _fallback(); } // ============ Private Functions ============ /** * @notice Call the initialization function on the implementation * Used at deployment to initialize the proxy * based on the logic for initialization defined at the implementation * @param _implementation - Contract to which the initalization is delegated * @param _initializationCalldata - Calldata supplied when calling the initialization function */ function _initialize( address _implementation, bytes memory _initializationCalldata ) private { // Delegatecall into the implementation, supplying initialization calldata. (bool _ok, ) = _implementation.delegatecall(_initializationCalldata); // Revert and include revert data if delegatecall to implementation reverts. if (!_ok) { assembly { returndatacopy(0, 0, returndatasize()) revert(0, returndatasize()) } } } /** * @notice Delegates function calls to the implementation contract returned by the Upgrade Beacon */ function _fallback() private { _delegate(_getImplementation()); } /** * @notice Delegate function execution to the implementation contract * @dev This is a low level function that doesn't return to its internal * call site. It will return whatever is returned by the implementation to the * external caller, reverting and returning the revert data if implementation * reverts. * @param _implementation - Address to which the function execution is delegated */ function _delegate(address _implementation) private { assembly { // Copy msg.data. We take full control of memory in this inline assembly // block because it will not return to Solidity code. We overwrite the // Solidity scratch pad at memory position 0. calldatacopy(0, 0, calldatasize()) // Delegatecall to the implementation, supplying calldata and gas. // Out and outsize are set to zero - instead, use the return buffer. let result := delegatecall( gas(), _implementation, 0, calldatasize(), 0, 0 ) // Copy the returned data from the return buffer. returndatacopy(0, 0, returndatasize()) switch result // Delegatecall returns 0 on error. case 0 { revert(0, returndatasize()) } default { return(0, returndatasize()) } } } /** * @notice Call the Upgrade Beacon to get the current implementation contract address * @return _implementation Address of the current implementation. */ function _getImplementation() private view returns (address _implementation) { _implementation = _getImplementation(upgradeBeacon); } /** * @notice Call the Upgrade Beacon to get the current implementation contract address * @dev _upgradeBeacon is passed as a parameter so that * we can also use this function in the constructor, * where we can't access immutable variables. * @param _upgradeBeacon Address of the UpgradeBeacon storing the current implementation * @return _implementation Address of the current implementation. */ function _getImplementation(address _upgradeBeacon) private view returns (address _implementation) { // Get the current implementation address from the upgrade beacon. (bool _ok, bytes memory _returnData) = _upgradeBeacon.staticcall(""); // Revert and pass along revert message if call to upgrade beacon reverts. require(_ok, string(_returnData)); // Set the implementation to the address returned from the upgrade beacon. _implementation = abi.decode(_returnData, (address)); } } // File contracts/validator-manager/InboxValidatorManager.sol pragma solidity >=0.8.0; // ============ Internal Imports ============ /** * @title InboxValidatorManager * @notice Verifies checkpoints are signed by a quorum of validators and submits * them to an Inbox. */ contract InboxValidatorManager is MultisigValidatorManager { // ============ Constructor ============ /** * @dev Reverts if `_validators` has any duplicates. * @param _remoteDomain The remote domain of the outbox chain. * @param _validators The set of validator addresses. * @param _threshold The quorum threshold. Must be greater than or equal * to the length of `_validators`. */ // solhint-disable-next-line no-empty-blocks constructor( uint32 _remoteDomain, address[] memory _validators, uint256 _threshold ) MultisigValidatorManager(_remoteDomain, _validators, _threshold) {} // ============ External Functions ============ /** * @notice Verifies a signed checkpoint and submits a message for processing. * @dev Reverts if `_signatures` is not a quorum of validator signatures. * @dev Reverts if `_signatures` is not sorted in ascending order by the signer * address, which is required for duplicate detection. * @param _inbox The inbox to submit the message to. * @param _root The merkle root of the signed checkpoint. * @param _index The index of the signed checkpoint. * @param _signatures Signatures over the checkpoint to be checked for a validator * quorum. Must be sorted in ascending order by signer address. * @param _message The message to process. * @param _proof Merkle proof of inclusion for message's leaf * @param _leafIndex Index of leaf in outbox's merkle tree */ function process( IInbox _inbox, bytes32 _root, uint256 _index, bytes[] calldata _signatures, bytes calldata _message, bytes32[32] calldata _proof, uint256 _leafIndex ) external { require(isQuorum(_root, _index, _signatures), "!quorum"); _inbox.process(_root, _index, _message, _proof, _leafIndex); } } // File contracts/validator-manager/OutboxValidatorManager.sol pragma solidity >=0.8.0; // ============ Internal Imports ============ /** * @title OutboxValidatorManager * @notice Verifies if an premature or fraudulent checkpoint has been signed by a quorum of * validators and reports it to an Outbox. */ contract OutboxValidatorManager is MultisigValidatorManager { // ============ Events ============ /** * @notice Emitted when a checkpoint is proven premature. * @dev Observers of this event should filter by the outbox address. * @param outbox The outbox. * @param signedRoot Root of the premature checkpoint. * @param signedIndex Index of the premature checkpoint. * @param signatures A quorum of signatures on the premature checkpoint. * May include non-validator signatures. * @param count The number of messages in the Outbox. */ event PrematureCheckpoint( address indexed outbox, bytes32 signedRoot, uint256 signedIndex, bytes[] signatures, uint256 count ); /** * @notice Emitted when a checkpoint is proven fraudulent. * @dev Observers of this event should filter by the outbox address. * @param outbox The outbox. * @param signedRoot Root of the fraudulent checkpoint. * @param signedIndex Index of the fraudulent checkpoint. * @param signatures A quorum of signatures on the fraudulent checkpoint. * May include non-validator signatures. * @param fraudulentLeaf The leaf in the fraudulent tree. * @param fraudulentProof Proof of inclusion of fraudulentLeaf. * @param actualLeaf The leaf in the Outbox's tree. * @param actualProof Proof of inclusion of actualLeaf. * @param leafIndex The index of the leaves that are being proved. */ event FraudulentCheckpoint( address indexed outbox, bytes32 signedRoot, uint256 signedIndex, bytes[] signatures, bytes32 fraudulentLeaf, bytes32[32] fraudulentProof, bytes32 actualLeaf, bytes32[32] actualProof, uint256 leafIndex ); // ============ Constructor ============ /** * @dev Reverts if `_validators` has any duplicates. * @param _localDomain The local domain. * @param _validators The set of validator addresses. * @param _threshold The quorum threshold. Must be greater than or equal * to the length of `_validators`. */ // solhint-disable-next-line no-empty-blocks constructor( uint32 _localDomain, address[] memory _validators, uint256 _threshold ) MultisigValidatorManager(_localDomain, _validators, _threshold) {} // ============ External Functions ============ /** * @notice Determines if a quorum of validators have signed a premature checkpoint, * failing the Outbox if so. * A checkpoint is premature if it commits to more messages than are present in the * Outbox's merkle tree. * @dev Premature checkpoints signed by individual validators are not handled to prevent * a single byzantine validator from failing the Outbox. * @param _outbox The outbox. * @param _signedRoot The root of the signed checkpoint. * @param _signedIndex The index of the signed checkpoint. * @param _signatures Signatures over the checkpoint to be checked for a validator * quorum. Must be sorted in ascending order by signer address. * @return True iff prematurity was proved. */ function prematureCheckpoint( IOutbox _outbox, bytes32 _signedRoot, uint256 _signedIndex, bytes[] calldata _signatures ) external returns (bool) { require(isQuorum(_signedRoot, _signedIndex, _signatures), "!quorum"); // Checkpoints are premature if the checkpoint commits to more messages // than the Outbox has in its merkle tree. uint256 count = _outbox.count(); require(_signedIndex >= count, "!premature"); _outbox.fail(); emit PrematureCheckpoint( address(_outbox), _signedRoot, _signedIndex, _signatures, count ); return true; } /** * @notice Determines if a quorum of validators have signed a fraudulent checkpoint, * failing the Outbox if so. * A checkpoint is fraudulent if the leaf it commits to at index I differs * from the leaf the Outbox committed to at index I, where I is less than or equal * to the index of the checkpoint. * This difference can be proved by comparing two merkle proofs for leaf * index J >= I. One against the fraudulent checkpoint, and one against a * checkpoint cached on the Outbox. * @dev Fraudulent checkpoints signed by individual validators are not handled to prevent * a single byzantine validator from failing the Outbox. * @param _outbox The outbox. * @param _signedRoot The root of the signed checkpoint. * @param _signedIndex The index of the signed checkpoint. * @param _signatures Signatures over the checkpoint to be checked for a validator * quorum. Must be sorted in ascending order by signer address. * @param _fraudulentLeaf The leaf in the fraudulent tree. * @param _fraudulentProof Proof of inclusion of `_fraudulentLeaf`. * @param _actualLeaf The leaf in the Outbox's tree. * @param _actualProof Proof of inclusion of `_actualLeaf`. * @param _leafIndex The index of the leaves that are being proved. * @return True iff fraud was proved. */ function fraudulentCheckpoint( IOutbox _outbox, bytes32 _signedRoot, uint256 _signedIndex, bytes[] calldata _signatures, bytes32 _fraudulentLeaf, bytes32[32] calldata _fraudulentProof, bytes32 _actualLeaf, bytes32[32] calldata _actualProof, uint256 _leafIndex ) external returns (bool) { // Check the signed checkpoint commits to _fraudulentLeaf at _leafIndex. require(isQuorum(_signedRoot, _signedIndex, _signatures), "!quorum"); bytes32 _fraudulentRoot = MerkleLib.branchRoot( _fraudulentLeaf, _fraudulentProof, _leafIndex ); require(_fraudulentRoot == _signedRoot, "!root"); require(_signedIndex >= _leafIndex, "!index"); // Check the cached checkpoint commits to _actualLeaf at _leafIndex. bytes32 _cachedRoot = MerkleLib.branchRoot( _actualLeaf, _actualProof, _leafIndex ); uint256 _cachedIndex = _outbox.cachedCheckpoints(_cachedRoot); require(_cachedIndex > 0 && _cachedIndex >= _leafIndex, "!cache"); // Check that the two roots commit to at least one differing leaf // with index <= _leafIndex. require( impliesDifferingLeaf( _fraudulentLeaf, _fraudulentProof, _actualLeaf, _actualProof, _leafIndex ), "!fraud" ); // Fail the Outbox. _outbox.fail(); emit FraudulentCheckpoint( address(_outbox), _signedRoot, _signedIndex, _signatures, _fraudulentLeaf, _fraudulentProof, _actualLeaf, _actualProof, _leafIndex ); return true; } /** * @notice Returns true if the implied merkle roots commit to at least one * differing leaf with index <= `_leafIndex`. * Given a merkle proof for leaf index J, we can determine whether an * element in the proof is an internal node whose terminal children are leaves * with index <= J. * Given two merkle proofs for leaf index J, if such elements do not match, * these two proofs necessarily commit to at least one differing leaf with * index I <= J. * @param _leafA The leaf in tree A. * @param _proofA Proof of inclusion of `_leafA` in tree A. * @param _leafB The leaf in tree B. * @param _proofB Proof of inclusion of `_leafB` in tree B. * @param _leafIndex The index of `_leafA` and `_leafB`. * @return differ True if the implied trees differ, false if not. */ function impliesDifferingLeaf( bytes32 _leafA, bytes32[32] calldata _proofA, bytes32 _leafB, bytes32[32] calldata _proofB, uint256 _leafIndex ) public pure returns (bool) { // The implied merkle roots commit to at least one differing leaf // with index <= _leafIndex, if either: // 1. If the provided leaves differ. if (_leafA != _leafB) { return true; } // 2. If the branches contain internal nodes whose subtrees are full // (as implied by _leafIndex) that differ from one another. for (uint8 i = 0; i < 32; i++) { uint256 _ithBit = (_leafIndex >> i) & 0x01; // If the i'th is 1, the i'th element in the proof is an internal // node whose subtree is full. // If these nodes differ, at least one leaf that they commit to // must differ as well. if (_ithBit == 1) { if (_proofA[i] != _proofB[i]) { return true; } } } return false; } } // File contracts/Create2Factory.sol // Copied from https://github.com/axelarnetwork/axelar-utils-solidity/commits/main/contracts/ConstAddressDeployer.sol pragma solidity ^0.8.0; contract Create2Factory { error EmptyBytecode(); error FailedDeploy(); error FailedInit(); event Deployed( bytes32 indexed bytecodeHash, bytes32 indexed salt, address indexed deployedAddress ); /** * @dev Deploys a contract using `CREATE2`. The address where the contract * will be deployed can be known in advance via {deployedAddress}. * * The bytecode for a contract can be obtained from Solidity with * `type(contractName).creationCode`. * * Requirements: * * - `bytecode` must not be empty. * - `salt` must have not been used for `bytecode` already by the same `msg.sender`. */ function deploy(bytes memory bytecode, bytes32 salt) external returns (address deployedAddress_) { deployedAddress_ = _deploy( bytecode, keccak256(abi.encode(msg.sender, salt)) ); } /** * @dev Deploys a contract using `CREATE2` and initialize it. The address where the contract * will be deployed can be known in advance via {deployedAddress}. * * The bytecode for a contract can be obtained from Solidity with * `type(contractName).creationCode`. * * Requirements: * * - `bytecode` must not be empty. * - `salt` must have not been used for `bytecode` already by the same `msg.sender`. * - `init` is used to initialize the deployed contract * as an option to not have the constructor args affect the address derived by `CREATE2`. */ function deployAndInit( bytes memory bytecode, bytes32 salt, bytes calldata init ) external returns (address deployedAddress_) { deployedAddress_ = _deploy( bytecode, keccak256(abi.encode(msg.sender, salt)) ); // solhint-disable-next-line avoid-low-level-calls (bool success, ) = deployedAddress_.call(init); if (!success) revert FailedInit(); } /** * @dev Returns the address where a contract will be stored if deployed via {deploy} or {deployAndInit} by `sender`. * Any change in the `bytecode`, `sender`, or `salt` will result in a new destination address. */ function deployedAddress( bytes calldata bytecode, address sender, bytes32 salt ) external view returns (address deployedAddress_) { bytes32 newSalt = keccak256(abi.encode(sender, salt)); deployedAddress_ = address( uint160( uint256( keccak256( abi.encodePacked( hex"ff", address(this), newSalt, keccak256(bytecode) // init code hash ) ) ) ) ); } function _deploy(bytes memory bytecode, bytes32 salt) internal returns (address deployedAddress_) { if (bytecode.length == 0) revert EmptyBytecode(); // solhint-disable-next-line no-inline-assembly assembly { deployedAddress_ := create2( 0, add(bytecode, 32), mload(bytecode), salt ) } if (deployedAddress_ == address(0)) revert FailedDeploy(); emit Deployed(keccak256(bytecode), salt, deployedAddress_); } } // File contracts/test/bad-recipient/BadRecipient2.sol pragma solidity >=0.8.0; contract BadRecipient2 { function handle(uint32, bytes32) external pure {} // solhint-disable-line no-empty-blocks }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"abacusConnectionManager","type":"address"}],"name":"AbacusConnectionManagerSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint8","name":"version","type":"uint8"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"interchainGasPaymaster","type":"address"}],"name":"InterchainGasPaymasterSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint32","name":"destinationDomain","type":"uint32"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"QueryDispatched","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint32","name":"destinationDomain","type":"uint32"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"QueryResolved","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint32","name":"originDomain","type":"uint32"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"QueryReturned","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint32","name":"domain","type":"uint32"},{"indexed":true,"internalType":"bytes32","name":"router","type":"bytes32"}],"name":"RemoteRouterEnrolled","type":"event"},{"inputs":[],"name":"abacusConnectionManager","outputs":[{"internalType":"contract IAbacusConnectionManager","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint32","name":"_domain","type":"uint32"},{"internalType":"bytes32","name":"_router","type":"bytes32"}],"name":"enrollRemoteRouter","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"_origin","type":"uint32"},{"internalType":"bytes32","name":"_sender","type":"bytes32"},{"internalType":"bytes","name":"_message","type":"bytes"}],"name":"handle","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"},{"internalType":"address","name":"_abacusConnectionManager","type":"address"},{"internalType":"address","name":"_interchainGasPaymaster","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"interchainGasPaymaster","outputs":[{"internalType":"contract IInterchainGasPaymaster","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"internalType":"struct Call[]","name":"calls","type":"tuple[]"}],"name":"proxyCalls","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"_destinationDomain","type":"uint32"},{"components":[{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"internalType":"struct Call[]","name":"calls","type":"tuple[]"},{"internalType":"bytes[]","name":"callbacks","type":"bytes[]"}],"name":"query","outputs":[{"internalType":"uint256","name":"leafIndex","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"_destinationDomain","type":"uint32"},{"internalType":"address","name":"target","type":"address"},{"internalType":"bytes","name":"queryData","type":"bytes"},{"internalType":"bytes","name":"callback","type":"bytes"}],"name":"query","outputs":[{"internalType":"uint256","name":"leafIndex","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"_destinationDomain","type":"uint32"},{"components":[{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"internalType":"struct Call","name":"call","type":"tuple"},{"internalType":"bytes","name":"callback","type":"bytes"}],"name":"query","outputs":[{"internalType":"uint256","name":"leafIndex","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"","type":"uint32"}],"name":"routers","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_abacusConnectionManager","type":"address"}],"name":"setAbacusConnectionManager","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_interchainGasPaymaster","type":"address"}],"name":"setInterchainGasPaymaster","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
608060405234801561001057600080fd5b5061001a3361001f565b610071565b603380546001600160a01b038381166001600160a01b0319831681179093556040519116919082907f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e090600090a35050565b61220a806100806000396000f3fe608060405234801561001057600080fd5b50600436106100f55760003560e01c806388b7551411610097578063b49c53a711610066578063b49c53a71461022c578063c0c53b8b1461023f578063f1bd6f0a14610252578063f2fde38b1461026557600080fd5b806388b75514146101c85780638da5cb5b146101db57806395b1f3b3146101f95780639a35c3591461020c57600080fd5b80632ead72f6116100d35780632ead72f61461014857806339bb4ad91461016857806356d5d475146101ad578063715018a6146101c057600080fd5b80631227dba9146100fa57806312b1d780146101205780632222b45214610135575b600080fd5b61010d6101083660046118d7565b610278565b6040519081526020015b60405180910390f35b61013361012e36600461194b565b61037d565b005b61010d6101433660046119b8565b61040a565b61010d610156366004611a4b565b60976020526000908152604090205481565b6066546101889073ffffffffffffffffffffffffffffffffffffffff1681565b60405173ffffffffffffffffffffffffffffffffffffffff9091168152602001610117565b6101336101bb366004611a66565b610564565b610133610655565b6101336101d6366004611ac0565b6106e2565b60335473ffffffffffffffffffffffffffffffffffffffff16610188565b61010d610207366004611b35565b610866565b6065546101889073ffffffffffffffffffffffffffffffffffffffff1681565b61013361023a366004611ba8565b61096a565b61013361024d366004611bd2565b6109f9565b61013361026036600461194b565b610abe565b61013361027336600461194b565b610b48565b60008151835114610310576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820152603e60248201527f496e746572636861696e5175657279526f757465723a2063616c6c7320616e6460448201527f2063616c6c6261636b73206d7573742062652073616d65206c656e677468000060648201526084015b60405180910390fd5b61034084600033868660405160200161032c9493929190611d4a565b604051602081830303815290604052610c75565b604051909150339063ffffffff8616907f11c97c784c298562a796345417aa40e1ce110e6b100f41b801ab23414f72d7e590600090a39392505050565b60335473ffffffffffffffffffffffffffffffffffffffff1633146103fe576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e65726044820152606401610307565b61040781610c92565b50565b604080516001808252818301909252600091829190816020015b60408051808201909152600081526060602082015281526020019060019003908161042457905050905060405180604001604052808873ffffffffffffffffffffffffffffffffffffffff16815260200187878080601f016020809104026020016040519081016040528093929190818152602001838380828437600092018290525093909452505083518492506104be576104be611e15565b6020908102919091010152604080516001808252818301909252600091816020015b60608152602001906001900390816104e057905050905084848080601f016020809104026020016040519081016040528093929190818152602001838380828437600092018290525085518694509092501515905061054157610541611e15565b6020026020010181905250610557898383610278565b9998505050505050505050565b61056d33610d01565b6105d3576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820152600660248201527f21696e626f7800000000000000000000000000000000000000000000000000006044820152606401610307565b63ffffffff84166000908152609760205260409020548490849081146040518060800160405280604381526020016121926043913990610640576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004016103079190611e44565b5061064d86868686610d96565b505050505050565b60335473ffffffffffffffffffffffffffffffffffffffff1633146106d6576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e65726044820152606401610307565b6106e06000610edb565b565b60335473ffffffffffffffffffffffffffffffffffffffff163314610763576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e65726044820152606401610307565b60005b818110156108615760008084848481811061078357610783611e15565b90506020028101906107959190611e57565b6107a390602081019061194b565b73ffffffffffffffffffffffffffffffffffffffff168585858181106107cb576107cb611e15565b90506020028101906107dd9190611e57565b6107eb906020810190611e95565b6040516107f9929190611efa565b6000604051808303816000865af19150503d8060008114610836576040519150601f19603f3d011682016040523d82523d6000602084013e61083b565b606091505b50915091508161084c578060208201fd5b5061085a9050600182611f39565b9050610766565b505050565b604080516001808252818301909252600091829190816020015b6040805180820190915260008152606060208201528152602001906001900390816108805790505090506108b385611f4c565b816000815181106108c6576108c6611e15565b6020908102919091010152604080516001808252818301909252600091816020015b60608152602001906001900390816108e857905050905084848080601f016020809104026020016040519081016040528093929190818152602001838380828437600092018290525085518694509092501515905061094957610949611e15565b602002602001018190525061095f878383610278565b979650505050505050565b60335473ffffffffffffffffffffffffffffffffffffffff1633146109eb576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e65726044820152606401610307565b6109f58282610f52565b5050565b6000610a056001610f96565b90508015610a3a57600080547fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff00ff166101001790555b610a4384610edb565b610a4c83610c92565b610a5582611121565b8015610ab857600080547fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff00ff169055604051600181527f7f26b83ff96e1f2b6a682f133852f6798a09c465da95921460cefb38474024989060200160405180910390a15b50505050565b60335473ffffffffffffffffffffffffffffffffffffffff163314610b3f576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e65726044820152606401610307565b61040781611121565b60335473ffffffffffffffffffffffffffffffffffffffff163314610bc9576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e65726044820152606401610307565b73ffffffffffffffffffffffffffffffffffffffff8116610c6c576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820152602660248201527f4f776e61626c653a206e6577206f776e657220697320746865207a65726f206160448201527f64647265737300000000000000000000000000000000000000000000000000006064820152608401610307565b61040781610edb565b6000610c89610c82611190565b8484611229565b90505b92915050565b606580547fffffffffffffffffffffffff00000000000000000000000000000000000000001673ffffffffffffffffffffffffffffffffffffffff83169081179091556040517f7c10de8878ed89478ff01b9cd8c11a5271ea8ac91d46f662e6aea7e3adf5b11f90600090a250565b6065546040517f282f51eb00000000000000000000000000000000000000000000000000000000815273ffffffffffffffffffffffffffffffffffffffff8381166004830152600092169063282f51eb90602401602060405180830381865afa158015610d72573d6000803e3d6000fd5b505050506040513d601f19601f82011682018060405250810190610c8c9190611f58565b6000610da482840184611f89565b90506000816001811115610dba57610dba611c1d565b03610e515760008080610dcf85870187611fa4565b935093509350506000610de283836112da565b9050610dfe896001868460405160200161032c9392919061202b565b5060405173ffffffffffffffffffffffffffffffffffffffff85169063ffffffff8b16907f23765aea2e90cfa5dadac549945f61c017334d01a9f242f49a070d9fb9a04a4690600090a350505050610ed4565b6001816001811115610e6557610e65611c1d565b03610ed457600080610e7984860186612067565b9250925050610e8882826114bc565b60405173ffffffffffffffffffffffffffffffffffffffff83169063ffffffff8916907fc4416e2fcdf8514178829e5ead195eb13f3241ea71c0e38f998868fe81e4226990600090a350505b5050505050565b6033805473ffffffffffffffffffffffffffffffffffffffff8381167fffffffffffffffffffffffff0000000000000000000000000000000000000000831681179093556040519116919082907f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e090600090a35050565b63ffffffff8216600081815260976020526040808220849055518392917f97fd51fef1f80c854cbd0150c248e8b2ac4ecdc97cc05e742b5f61c9f4dc645891a35050565b60008054610100900460ff161561104d578160ff166001148015610fb95750303b155b611045576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820152602e60248201527f496e697469616c697a61626c653a20636f6e747261637420697320616c72656160448201527f647920696e697469616c697a65640000000000000000000000000000000000006064820152608401610307565b506000919050565b60005460ff8084169116106110e4576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820152602e60248201527f496e697469616c697a61626c653a20636f6e747261637420697320616c72656160448201527f647920696e697469616c697a65640000000000000000000000000000000000006064820152608401610307565b50600080547fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff001660ff92909216919091179055600190565b919050565b606680547fffffffffffffffffffffffff00000000000000000000000000000000000000001673ffffffffffffffffffffffffffffffffffffffff83169081179091556040517fb87f5a0bface22cde699143559fb99f990ae54eea236995fc54178af91af859f90600090a250565b606554604080517fce11e6ab000000000000000000000000000000000000000000000000000000008152905160009273ffffffffffffffffffffffffffffffffffffffff169163ce11e6ab9160048083019260209291908290030181865afa158015611200573d6000803e3d6000fd5b505050506040513d601f19601f8201168201806040525081019061122491906120bd565b905090565b60008061123584611571565b6040517ffa31de0100000000000000000000000000000000000000000000000000000000815290915073ffffffffffffffffffffffffffffffffffffffff86169063fa31de019061128e908790859088906004016120da565b6020604051808303816000875af11580156112ad573d6000803e3d6000fd5b505050506040513d601f19601f820116820180604052508101906112d191906120ff565b95945050505050565b6060815167ffffffffffffffff8111156112f6576112f66115fb565b60405190808252806020026020018201604052801561132957816020015b60608152602001906001900390816113145790505b50905060005b83518110156114b55760008085838151811061134d5761134d611e15565b60200260200101516000015173ffffffffffffffffffffffffffffffffffffffff1686848151811061138157611381611e15565b60200260200101516020015160405161139a9190612118565b6000604051808303816000865af19150503d80600081146113d7576040519150601f19603f3d011682016040523d82523d6000602084013e6113dc565b606091505b509150915081611448576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820152601660248201527f4d756c746963616c6c3a2063616c6c206661696c6564000000000000000000006044820152606401610307565b84838151811061145a5761145a611e15565b60200260200101518160405160200161147492919061212a565b60405160208183030381529060405284848151811061149557611495611e15565b6020026020010181905250505080806114ad90612159565b91505061132f565b5092915050565b60005b8151811015610861576000808473ffffffffffffffffffffffffffffffffffffffff168484815181106114f4576114f4611e15565b60200260200101516040516115099190612118565b6000604051808303816000865af19150503d8060008114611546576040519150601f19603f3d011682016040523d82523d6000602084013e61154b565b606091505b50915091508161155c578060208201fd5b5061156a9050600182611f39565b90506114bf565b63ffffffff811660009081526097602090815260409182902054825160808101909352604380845290928315159290919061219290830139906115e1576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004016103079190611e44565b50919050565b803563ffffffff8116811461111c57600080fd5b7f4e487b7100000000000000000000000000000000000000000000000000000000600052604160045260246000fd5b604051601f82017fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe016810167ffffffffffffffff81118282101715611671576116716115fb565b604052919050565b600067ffffffffffffffff821115611693576116936115fb565b5060051b60200190565b73ffffffffffffffffffffffffffffffffffffffff8116811461040757600080fd5b600082601f8301126116d057600080fd5b813567ffffffffffffffff8111156116ea576116ea6115fb565b61171b60207fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe0601f8401160161162a565b81815284602083860101111561173057600080fd5b816020850160208301376000918101602001919091529392505050565b60006040828403121561175f57600080fd5b6040516040810167ffffffffffffffff8282108183111715611783576117836115fb565b81604052829350843591506117978261169d565b908252602084013590808211156117ad57600080fd5b506117ba858286016116bf565b6020830152505092915050565b600082601f8301126117d857600080fd5b813560206117ed6117e883611679565b61162a565b82815260059290921b8401810191818101908684111561180c57600080fd5b8286015b8481101561184c57803567ffffffffffffffff8111156118305760008081fd5b61183e8986838b010161174d565b845250918301918301611810565b509695505050505050565b600082601f83011261186857600080fd5b813560206118786117e883611679565b82815260059290921b8401810191818101908684111561189757600080fd5b8286015b8481101561184c57803567ffffffffffffffff8111156118bb5760008081fd5b6118c98986838b01016116bf565b84525091830191830161189b565b6000806000606084860312156118ec57600080fd5b6118f5846115e7565b9250602084013567ffffffffffffffff8082111561191257600080fd5b61191e878388016117c7565b9350604086013591508082111561193457600080fd5b5061194186828701611857565b9150509250925092565b60006020828403121561195d57600080fd5b81356119688161169d565b9392505050565b60008083601f84011261198157600080fd5b50813567ffffffffffffffff81111561199957600080fd5b6020830191508360208285010111156119b157600080fd5b9250929050565b600080600080600080608087890312156119d157600080fd5b6119da876115e7565b955060208701356119ea8161169d565b9450604087013567ffffffffffffffff80821115611a0757600080fd5b611a138a838b0161196f565b90965094506060890135915080821115611a2c57600080fd5b50611a3989828a0161196f565b979a9699509497509295939492505050565b600060208284031215611a5d57600080fd5b610c89826115e7565b60008060008060608587031215611a7c57600080fd5b611a85856115e7565b935060208501359250604085013567ffffffffffffffff811115611aa857600080fd5b611ab48782880161196f565b95989497509550505050565b60008060208385031215611ad357600080fd5b823567ffffffffffffffff80821115611aeb57600080fd5b818501915085601f830112611aff57600080fd5b813581811115611b0e57600080fd5b8660208260051b8501011115611b2357600080fd5b60209290920196919550909350505050565b60008060008060608587031215611b4b57600080fd5b611b54856115e7565b9350602085013567ffffffffffffffff80821115611b7157600080fd5b9086019060408289031215611b8557600080fd5b90935060408601359080821115611b9b57600080fd5b50611ab48782880161196f565b60008060408385031215611bbb57600080fd5b611bc4836115e7565b946020939093013593505050565b600080600060608486031215611be757600080fd5b8335611bf28161169d565b92506020840135611c028161169d565b91506040840135611c128161169d565b809150509250925092565b7f4e487b7100000000000000000000000000000000000000000000000000000000600052602160045260246000fd5b60028110611c83577f4e487b7100000000000000000000000000000000000000000000000000000000600052602160045260246000fd5b9052565b60005b83811015611ca2578181015183820152602001611c8a565b50506000910152565b60008151808452611cc3816020860160208601611c87565b601f017fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe0169290920160200192915050565b600081518084526020808501808196508360051b8101915082860160005b85811015611d3d578284038952611d2b848351611cab565b98850198935090840190600101611d13565b5091979650505050505050565b600060808201611d5a8388611c4c565b602073ffffffffffffffffffffffffffffffffffffffff80881682860152604060808187015283885180865260a08801915060a08160051b8901019550848a0160005b82811015611dfc578988037fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff600184528151805187168952870151878901869052611de9868a0182611cab565b9850509286019290860190600101611d9d565b50505050505050828103606084015261095f8185611cf5565b7f4e487b7100000000000000000000000000000000000000000000000000000000600052603260045260246000fd5b602081526000610c896020830184611cab565b600082357fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc1833603018112611e8b57600080fd5b9190910192915050565b60008083357fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe1843603018112611eca57600080fd5b83018035915067ffffffffffffffff821115611ee557600080fd5b6020019150368190038213156119b157600080fd5b8183823760009101908152919050565b7f4e487b7100000000000000000000000000000000000000000000000000000000600052601160045260246000fd5b80820180821115610c8c57610c8c611f0a565b6000610c8c368361174d565b600060208284031215611f6a57600080fd5b8151801515811461196857600080fd5b80356002811061111c57600080fd5b600060208284031215611f9b57600080fd5b610c8982611f7a565b60008060008060808587031215611fba57600080fd5b611fc385611f7a565b93506020850135611fd38161169d565b9250604085013567ffffffffffffffff80821115611ff057600080fd5b611ffc888389016117c7565b9350606087013591508082111561201257600080fd5b5061201f87828801611857565b91505092959194509250565b6120358185611c4c565b73ffffffffffffffffffffffffffffffffffffffff831660208201526060604082015260006112d16060830184611cf5565b60008060006060848603121561207c57600080fd5b61208584611f7a565b925060208401356120958161169d565b9150604084013567ffffffffffffffff8111156120b157600080fd5b61194186828701611857565b6000602082840312156120cf57600080fd5b81516119688161169d565b63ffffffff841681528260208201526060604082015260006112d16060830184611cab565b60006020828403121561211157600080fd5b5051919050565b60008251611e8b818460208701611c87565b6000835161213c818460208801611c87565b835190830190612150818360208801611c87565b01949350505050565b60007fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff820361218a5761218a611f0a565b506001019056fe4e6f20726f7574657220656e726f6c6c656420666f7220646f6d61696e2e2044696420796f7520737065636966792074686520726967687420646f6d61696e2049443fa26469706673582212202a2effcfe5ad36d1607f9bc83450d528f36c44e5940a699f8a02e77f1f7bf0cf64736f6c63430008100033
Deployed Bytecode
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
Loading...
Loading
Loading...
Loading
Multichain Portfolio | 27 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
---|
Loading...
Loading
[ Download: CSV Export ]
[ Download: CSV Export ]
A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.