Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
- Contract name:
- Bridge
- Optimization enabled
- true
- Compiler version
- v0.8.27+commit.40a35a09
- Optimization runs
- 200
- EVM Version
- shanghai
- Verified at
- 2024-10-29T06:35:34.543977Z
contracts/shared/bridge/Bridge.sol
// SPDX-License-Identifier: MIT pragma solidity ^0.8.24; import "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/ERC20VotesUpgradeable.sol"; import "../common/EssentialContract.sol"; import "../common/LibStrings.sol"; import "../common/LibAddress.sol"; import "../common/LibMath.sol"; import "../common/LibNetwork.sol"; import "../signal/ISignalService.sol"; import "./IBridge.sol"; import "./IQuotaManager.sol"; /// @title Bridge /// @notice See the documentation for {IBridge}. /// @dev Labeled in AddressResolver as "bridge". Additionally, the code hash for the same address on /// L1 and L2 may be different. /// @custom:security-contact security@taiko.xyz contract Bridge is EssentialContract, IBridge { using Address for address; using LibMath for uint256; using LibAddress for address; using LibAddress for address payable; struct ProcessingStats { uint32 gasUsedInFeeCalc; uint32 proofSize; uint32 numCacheOps; bool processedByRelayer; } /// @dev A debug event for fine-tuning gas related constants in the future. event MessageProcessed(bytes32 indexed msgHash, Message message, ProcessingStats stats); /// @dev The amount of gas that will be deducted from message.gasLimit before calculating the /// invocation gas limit. This value should be fine-tuned with production data. uint32 public constant GAS_RESERVE = 800_000; /// @dev The gas overhead for both receiving and invoking a message, as well as the proof /// calldata cost. /// This value should be fine-tuned with production data. uint32 public constant GAS_OVERHEAD = 120_000; ///@dev The max proof size for a message to be processable by a relayer. uint256 public constant RELAYER_MAX_PROOF_BYTES = 200_000; /// @dev The amount of gas not to charge fee per cache operation. uint256 private constant _GAS_REFUND_PER_CACHE_OPERATION = 20_000; /// @dev Gas limit for sending Ether. // - EOA gas used is < 21000 // - For Loopring smart wallet, gas used is about 23000 // - For Argent smart wallet on Ethereum, gas used is about 24000 // - For Gnosis Safe wallet, gas used is about 28000 uint256 private constant _SEND_ETHER_GAS_LIMIT = 35_000; /// @dev Place holder value when not using transient storage uint256 private constant _PLACEHOLDER = type(uint256).max; /// @notice The next message ID. /// @dev Slot 1. uint64 private __reserved1; uint64 public nextMessageId; /// @notice Mapping to store the status of a message from its hash. /// @dev Slot 2. mapping(bytes32 msgHash => Status status) public messageStatus; /// @dev Slots 3 and 4 Context private __ctx; /// @dev Slot 5. uint256 private __reserved2; /// @dev Slot 6. uint256 private __reserved3; uint256[44] private __gap; error B_INVALID_CHAINID(); error B_INVALID_CONTEXT(); error B_INVALID_FEE(); error B_INVALID_GAS_LIMIT(); error B_INVALID_STATUS(); error B_INVALID_VALUE(); error B_INSUFFICIENT_GAS(); error B_MESSAGE_NOT_SENT(); error B_OUT_OF_ETH_QUOTA(); error B_PERMISSION_DENIED(); error B_PROOF_TOO_LARGE(); error B_RETRY_FAILED(); error B_SIGNAL_NOT_RECEIVED(); modifier sameChain(uint64 _chainId) { if (_chainId != block.chainid) revert B_INVALID_CHAINID(); _; } modifier diffChain(uint64 _chainId) { if (_chainId == 0 || _chainId == block.chainid) revert B_INVALID_CHAINID(); _; } /// @notice Initializes the contract. /// @param _owner The owner of this contract. msg.sender will be used if this value is zero. /// @param _sharedAddressManager The address of the {AddressManager} contract. function init(address _owner, address _sharedAddressManager) external initializer { __Essential_init(_owner, _sharedAddressManager); } /// @notice This function shall be called by previously deployed contracts. function init2() external onlyOwner reinitializer(2) { // reset some previously used slots for future reuse __reserved1 = 0; __reserved2 = 0; __reserved3 = 0; } /// @notice Delegates a given token's voting power to the bridge itself. /// @param _anyToken Any token that supports delegation. function selfDelegate(address _anyToken) external nonZeroAddr(_anyToken) { ERC20VotesUpgradeable(_anyToken).delegate(address(this)); } /// @inheritdoc IBridge function sendMessage(Message calldata _message) external payable override nonZeroAddr(_message.srcOwner) nonZeroAddr(_message.destOwner) diffChain(_message.destChainId) whenNotPaused nonReentrant returns (bytes32 msgHash_, Message memory message_) { if (_message.gasLimit == 0) { if (_message.fee != 0) revert B_INVALID_FEE(); } else if (_invocationGasLimit(_message) == 0) { revert B_INVALID_GAS_LIMIT(); } // Check if the destination chain is enabled. (bool destChainEnabled,) = isDestChainEnabled(_message.destChainId); // Verify destination chain. if (!destChainEnabled) revert B_INVALID_CHAINID(); // Ensure the sent value matches the expected amount. if (_message.value + _message.fee != msg.value) revert B_INVALID_VALUE(); message_ = _message; // Configure message details and send signal to indicate message sending. message_.id = nextMessageId++; message_.from = msg.sender; message_.srcChainId = uint64(block.chainid); msgHash_ = hashMessage(message_); emit MessageSent(msgHash_, message_); ISignalService(resolve(LibStrings.B_SIGNAL_SERVICE, false)).sendSignal(msgHash_); } /// @inheritdoc IBridge function recallMessage( Message calldata _message, bytes calldata _proof ) external sameChain(_message.srcChainId) diffChain(_message.destChainId) whenNotPaused nonReentrant { bytes32 msgHash = hashMessage(_message); _checkStatus(msgHash, Status.NEW); address signalService = resolve(LibStrings.B_SIGNAL_SERVICE, false); if (!ISignalService(signalService).isSignalSent(address(this), msgHash)) { revert B_MESSAGE_NOT_SENT(); } _proveSignalReceived( signalService, signalForFailedMessage(msgHash), _message.destChainId, _proof ); _updateMessageStatus(msgHash, Status.RECALLED); if (!_consumeEtherQuota(_message.value)) revert B_OUT_OF_ETH_QUOTA(); // Execute the recall logic based on the contract's support for the // IRecallableSender interface if (_message.from.supportsInterface(type(IRecallableSender).interfaceId)) { _storeContext(msgHash, address(this), _message.srcChainId); // Perform recall IRecallableSender(_message.from).onMessageRecalled{ value: _message.value }( _message, msgHash ); // Must reset the context after the message call _storeContext( bytes32(_PLACEHOLDER), address(uint160(_PLACEHOLDER)), uint64(_PLACEHOLDER) ); } else { _message.srcOwner.sendEtherAndVerify(_message.value, _SEND_ETHER_GAS_LIMIT); } } /// @inheritdoc IBridge /// @dev To ensure successful execution, we recommend this transaction's gas limit not to be /// smaller than: /// `(message.gasLimit - GAS_RESERVE) * 64 / 63 + GAS_RESERVE`, /// Or we can use a simplified rule: `tx.gaslimit = message.gaslimit * 102%`. function processMessage( Message calldata _message, bytes calldata _proof ) external whenNotPaused nonReentrant returns (Status status_, StatusReason reason_) { uint256 gasStart = gasleft(); // same as `sameChain(_message.destChainId)` but without stack-too-deep if (_message.destChainId != block.chainid) revert B_INVALID_CHAINID(); // same as `diffChain(_message.srcChainId)` but without stack-too-deep if (_message.srcChainId == 0 || _message.srcChainId == block.chainid) { revert B_INVALID_CHAINID(); } ProcessingStats memory stats; stats.processedByRelayer = msg.sender != _message.destOwner; // If the gas limit is set to zero, only the owner can process the message. if (stats.processedByRelayer) { if (_message.gasLimit == 0) revert B_PERMISSION_DENIED(); if (_proof.length > RELAYER_MAX_PROOF_BYTES) revert B_PROOF_TOO_LARGE(); } bytes32 msgHash = hashMessage(_message); _checkStatus(msgHash, Status.NEW); address signalService = resolve(LibStrings.B_SIGNAL_SERVICE, false); stats.proofSize = uint32(_proof.length); stats.numCacheOps = _proveSignalReceived(signalService, msgHash, _message.srcChainId, _proof); if (!_consumeEtherQuota(_message.value + _message.fee)) revert B_OUT_OF_ETH_QUOTA(); uint256 refundAmount; if (_unableToInvokeMessageCall(_message, signalService)) { // Handle special addresses and message.data encoded function calldata that don't // require or cannot proceed with actual invocation and mark message as DONE refundAmount = _message.value; status_ = Status.DONE; reason_ = StatusReason.INVOCATION_PROHIBITED; } else { uint256 gasLimit = stats.processedByRelayer ? _invocationGasLimit(_message) : gasleft(); if (_invokeMessageCall(_message, msgHash, gasLimit, stats.processedByRelayer)) { status_ = Status.DONE; reason_ = StatusReason.INVOCATION_OK; } else { status_ = Status.RETRIABLE; reason_ = StatusReason.INVOCATION_FAILED; } } if (_message.fee != 0) { refundAmount += _message.fee; if (stats.processedByRelayer && _message.gasLimit != 0) { unchecked { // The relayer (=message processor) needs to get paid from the fee, and below it // the calculation mechanism of that. // The high level overview is: "gasCharged * block.basefee" with some caveat. // Sometimes over or under estimated and it has different reasons: // - a rational relayer shall simulate transactions off-chain so he/she would // exactly know if the txn is profitable or not. // - need to have a buffer/small revenue to the realyer since it consumes // maintenance and infra costs to operate uint256 refund = stats.numCacheOps * _GAS_REFUND_PER_CACHE_OPERATION; // Taking into account the encoded message calldata cost, and can count with 16 // gas per bytes (vs. checking each and every byte if zero or non-zero) stats.gasUsedInFeeCalc = uint32( GAS_OVERHEAD + gasStart + _messageCalldataCost(_message.data.length) - gasleft() ); uint256 gasCharged = refund.max(stats.gasUsedInFeeCalc) - refund; uint256 maxFee = gasCharged * _message.fee / _message.gasLimit; uint256 baseFee = gasCharged * block.basefee; uint256 fee = (baseFee >= maxFee ? maxFee : (maxFee + baseFee) >> 1).min(_message.fee); refundAmount -= fee; msg.sender.sendEtherAndVerify(fee, _SEND_ETHER_GAS_LIMIT); } } } _message.destOwner.sendEtherAndVerify(refundAmount, _SEND_ETHER_GAS_LIMIT); _updateMessageStatus(msgHash, status_); emit MessageProcessed(msgHash, _message, stats); } /// @inheritdoc IBridge function retryMessage( Message calldata _message, bool _isLastAttempt ) external sameChain(_message.destChainId) diffChain(_message.srcChainId) whenNotPaused nonReentrant { bytes32 msgHash = hashMessage(_message); _checkStatus(msgHash, Status.RETRIABLE); if (!_consumeEtherQuota(_message.value)) revert B_OUT_OF_ETH_QUOTA(); bool succeeded; if (_unableToInvokeMessageCall(_message, resolve(LibStrings.B_SIGNAL_SERVICE, false))) { succeeded = _message.destOwner.sendEther(_message.value, _SEND_ETHER_GAS_LIMIT, ""); } else { if ((_message.gasLimit == 0 || _isLastAttempt) && msg.sender != _message.destOwner) { revert B_PERMISSION_DENIED(); } // Attempt to invoke the messageCall. succeeded = _invokeMessageCall(_message, msgHash, gasleft(), false); } if (succeeded) { _updateMessageStatus(msgHash, Status.DONE); } else if (_isLastAttempt) { _updateMessageStatus(msgHash, Status.FAILED); ISignalService(resolve(LibStrings.B_SIGNAL_SERVICE, false)).sendSignal( signalForFailedMessage(msgHash) ); } else { revert B_RETRY_FAILED(); } } /// @inheritdoc IBridge function failMessage(Message calldata _message) external sameChain(_message.destChainId) diffChain(_message.srcChainId) whenNotPaused nonReentrant { if (msg.sender != _message.destOwner) revert B_PERMISSION_DENIED(); bytes32 msgHash = hashMessage(_message); _checkStatus(msgHash, Status.RETRIABLE); _updateMessageStatus(msgHash, Status.FAILED); ISignalService(resolve(LibStrings.B_SIGNAL_SERVICE, false)).sendSignal( signalForFailedMessage(msgHash) ); } /// @inheritdoc IBridge function isMessageSent(Message calldata _message) external view returns (bool) { if (_message.srcChainId != block.chainid) return false; return ISignalService(resolve(LibStrings.B_SIGNAL_SERVICE, false)).isSignalSent({ _app: address(this), _signal: hashMessage(_message) }); } /// @notice Checks if a msgHash has failed on its destination chain. /// This is the 'readonly' version of proveMessageFailed. /// @param _message The message. /// @param _proof The merkle inclusion proof. /// @return true if the message has failed, false otherwise. function isMessageFailed( Message calldata _message, bytes calldata _proof ) external view returns (bool) { if (_message.srcChainId != block.chainid) return false; return _isSignalReceived( resolve(LibStrings.B_SIGNAL_SERVICE, false), signalForFailedMessage(hashMessage(_message)), _message.destChainId, _proof ); } /// @notice Checks if a msgHash has been received on its source chain. /// This is the 'readonly' version of proveMessageReceived. /// @param _message The message. /// @param _proof The merkle inclusion proof. /// @return true if the message has been received, false otherwise. function isMessageReceived( Message calldata _message, bytes calldata _proof ) external view returns (bool) { if (_message.destChainId != block.chainid) return false; return _isSignalReceived( resolve(LibStrings.B_SIGNAL_SERVICE, false), hashMessage(_message), _message.srcChainId, _proof ); } /// @notice Checks if the destination chain is enabled. /// @param _chainId The destination chain ID. /// @return enabled_ True if the destination chain is enabled. /// @return destBridge_ The bridge of the destination chain. function isDestChainEnabled(uint64 _chainId) public view returns (bool enabled_, address destBridge_) { destBridge_ = resolve(_chainId, LibStrings.B_BRIDGE, true); enabled_ = destBridge_ != address(0); } /// @notice Gets the current context. /// @inheritdoc IBridge function context() external view returns (Context memory ctx_) { ctx_ = _loadContext(); if (ctx_.msgHash == 0 || ctx_.msgHash == bytes32(_PLACEHOLDER)) { revert B_INVALID_CONTEXT(); } } /// @inheritdoc IBridge function hashMessage(Message memory _message) public pure returns (bytes32) { return keccak256(abi.encode("TAIKO_MESSAGE", _message)); } /// @notice Returns a signal representing a failed/recalled message. /// @param _msgHash The message hash. /// @return The failed representation of it as bytes32. function signalForFailedMessage(bytes32 _msgHash) public pure returns (bytes32) { return _msgHash ^ bytes32(uint256(Status.FAILED)); } /// @notice Returns the minimal gas limit required for sending a given message. /// @param dataLength The length of message.data. /// @return The minimal gas limit required for sending this message. function getMessageMinGasLimit(uint256 dataLength) public pure returns (uint32) { return _messageCalldataCost(dataLength) + GAS_RESERVE; } /// @notice Checks if the given address can pause and/or unpause the bridge. /// @dev Considering that the watchdog is a hot wallet, in case its private key is leaked, we /// only allow watchdog to pause the bridge, but does not allow it to unpause the bridge. function _authorizePause(address addr, bool toPause) internal view override { // Owner and chain_pauser can pause/unpause the bridge. if (addr == owner() || addr == resolve(LibStrings.B_CHAIN_WATCHDOG, true)) return; // bridge_watchdog can pause the bridge, but cannot unpause it. if (toPause && addr == resolve(LibStrings.B_BRIDGE_WATCHDOG, true)) return; revert RESOLVER_DENIED(); } /// @notice Invokes a call message on the Bridge. /// @param _message The call message to be invoked. /// @param _msgHash The hash of the message. /// @param _shouldCheckForwardedGas True to check gasleft is sufficient for target function /// invocation. /// @return success_ A boolean value indicating whether the message call was successful. /// @dev This function updates the context in the state before and after the /// message call. function _invokeMessageCall( Message calldata _message, bytes32 _msgHash, uint256 _gasLimit, bool _shouldCheckForwardedGas ) private returns (bool success_) { assert(_message.from != address(this)); if (_message.value == 0 && _message.data.length == 0) return true; if (_gasLimit == 0) return false; _storeContext(_msgHash, _message.from, _message.srcChainId); address to = _message.to; uint256 value = _message.value; bytes memory data = _message.data; uint256 gasLeft; assembly { success_ := call(_gasLimit, to, value, add(data, 0x20), mload(data), 0, 0) gasLeft := gas() } if (_shouldCheckForwardedGas) { _checkForwardedGas(gasLeft, _gasLimit); } _storeContext(bytes32(_PLACEHOLDER), address(uint160(_PLACEHOLDER)), uint64(_PLACEHOLDER)); } /// @notice Updates the status of a bridge message. /// @dev If the new status is different from the current status in the /// mapping, the status is updated and an event is emitted. /// @param _msgHash The hash of the message. /// @param _status The new status of the message. function _updateMessageStatus(bytes32 _msgHash, Status _status) private { if (messageStatus[_msgHash] == _status) revert B_INVALID_STATUS(); messageStatus[_msgHash] = _status; emit MessageStatusChanged(_msgHash, _status); } /// @notice Stores the call context /// @param _msgHash The message hash. /// @param _from The sender's address. /// @param _srcChainId The source chain ID. function _storeContext(bytes32 _msgHash, address _from, uint64 _srcChainId) internal virtual { __ctx = Context(_msgHash, _from, _srcChainId); } /// @notice Checks if the signal was received and caches cross-chain data if requested. /// @param _signalService The signal service address. /// @param _signal The signal. /// @param _chainId The ID of the chain the signal is stored on. /// @param _proof The merkle inclusion proof. /// @return numCacheOps_ Num of cached items function _proveSignalReceived( address _signalService, bytes32 _signal, uint64 _chainId, bytes calldata _proof ) private returns (uint32 numCacheOps_) { try ISignalService(_signalService).proveSignalReceived( _chainId, resolve(_chainId, LibStrings.B_BRIDGE, false), _signal, _proof ) returns (uint256 numCacheOps) { numCacheOps_ = uint32(numCacheOps); } catch { revert B_SIGNAL_NOT_RECEIVED(); } } /// @notice Consumes a given amount of Ether from quota manager. /// @param _amount The amount of Ether to consume. /// @return true if quota manager has unlimited quota for Ether or the given amount of Ether is /// consumed already. function _consumeEtherQuota(uint256 _amount) private returns (bool) { address quotaManager = resolve(LibStrings.B_QUOTA_MANAGER, true); if (quotaManager == address(0)) return true; try IQuotaManager(quotaManager).consumeQuota(address(0), _amount) { return true; } catch { return false; } } /// @notice Loads and returns the call context. /// @return ctx_ The call context. function _loadContext() internal view virtual returns (Context memory) { return __ctx; } /// @notice Checks if the signal was received. /// This is the 'readonly' version of _proveSignalReceived. /// @param _signalService The signal service address. /// @param _signal The signal. /// @param _chainId The ID of the chain the signal is stored on. /// @param _proof The merkle inclusion proof. /// @return true if the message was received. function _isSignalReceived( address _signalService, bytes32 _signal, uint64 _chainId, bytes calldata _proof ) private view returns (bool) { try ISignalService(_signalService).verifySignalReceived( _chainId, resolve(_chainId, LibStrings.B_BRIDGE, false), _signal, _proof ) { return true; } catch { return false; } } function _checkStatus(bytes32 _msgHash, Status _expectedStatus) private view { if (messageStatus[_msgHash] != _expectedStatus) revert B_INVALID_STATUS(); } function _unableToInvokeMessageCall( Message calldata _message, address _signalService ) private view returns (bool) { if (_message.to == address(0)) return true; if (_message.to == address(this)) return true; if (_message.to == _signalService) return true; return _message.data.length >= 4 && bytes4(_message.data) != IMessageInvocable.onMessageInvocation.selector && _message.to.isContract(); } function _invocationGasLimit(Message calldata _message) private pure returns (uint256) { uint256 minGasRequired = getMessageMinGasLimit(_message.data.length); unchecked { return minGasRequired.max(_message.gasLimit) - minGasRequired; } } function _messageCalldataCost(uint256 dataLength) private pure returns (uint32) { // The abi encoding of A = (Message calldata msg) is 10 * 32 bytes // + 32 bytes (A is a dynamic tuple, offset to first elements) // + 32 bytes (offset to last bytes element of Message) // + 32 bytes (padded encoding of length of Message.data + dataLength // (padded to 32 // bytes) = 13 * 32 + ((dataLength + 31) / 32 * 32). // Non-zero calldata cost per byte is 16. unchecked { return uint32(((dataLength + 31) / 32 * 32 + 416) << 4); } } /// @dev Suggested by OpenZeppelin and copied from /// https://github.com/OpenZeppelin/openzeppelin-contracts/ /// blob/83c7e45092dac350b070c421cd2bf7105616cf1a/contracts/ /// metatx/ERC2771Forwarder.sol#L327C1-L370C6 /// /// @dev Checks if the requested gas was correctly forwarded to the callee. /// As a consequence of https://eips.ethereum.org/EIPS/eip-150[EIP-150]: /// - At most `gasleft() - floor(gasleft() / 64)` is forwarded to the callee. /// - At least `floor(gasleft() / 64)` is kept in the caller. /// /// It reverts consuming all the available gas if the forwarded gas is not the requested gas. /// /// IMPORTANT: The `gasLeft` parameter should be measured exactly at the end of the forwarded /// call. /// Any gas consumed in between will make room for bypassing this check. function _checkForwardedGas(uint256 _gasLeft, uint256 _gasRequested) private pure { // To avoid insufficient gas griefing attacks, as referenced in // https://ronan.eth.limo/blog/ethereum-gas-dangers/ // // A malicious relayer can attempt to shrink the gas forwarded so that the underlying call // reverts out-of-gas // but the forwarding itself still succeeds. In order to make sure that the subcall received // sufficient gas, // we will inspect gasleft() after the forwarding. // // Let X be the gas available before the subcall, such that the subcall gets at most X * 63 // / 64. // We can't know X after CALL dynamic costs, but we want it to be such that X * 63 / 64 >= // req.gas. // Let Y be the gas used in the subcall. gasleft() measured immediately after the subcall // will be gasleft() = X - Y. // If the subcall ran out of gas, then Y = X * 63 / 64 and gasleft() = X - Y = X / 64. // Under this assumption req.gas / 63 > gasleft() is true is true if and only if // req.gas / 63 > X / 64, or equivalently req.gas > X * 63 / 64. // This means that if the subcall runs out of gas we are able to detect that insufficient // gas was passed. // // We will now also see that req.gas / 63 > gasleft() implies that req.gas >= X * 63 / 64. // The contract guarantees Y <= req.gas, thus gasleft() = X - Y >= X - req.gas. // - req.gas / 63 > gasleft() // - req.gas / 63 >= X - req.gas // - req.gas >= X * 63 / 64 // In other words if req.gas < X * 63 / 64 then req.gas / 63 <= gasleft(), thus if the // relayer behaves honestly // the forwarding does not revert. if (_gasLeft < _gasRequested / 63) { // We explicitly trigger invalid opcode to consume all gas and bubble-up the effects, // since // neither revert or assert consume all gas since Solidity 0.8.20 // https://docs.soliditylang.org/en/v0.8.20/control-structures.html#panic-via-assert-and-error-via-require /// @solidity memory-safe-assembly assembly { invalid() } } } }
contracts/shared/bridge/IQuotaManager.sol
// SPDX-License-Identifier: MIT pragma solidity ^0.8.24; /// @title IQuotaManager /// @custom:security-contact security@taiko.xyz interface IQuotaManager { /// @notice Consumes a specific amount of quota for a given address. /// This function must revert if available quota is smaller than the given amount of quota. /// /// @dev Note that IQuotaManager is used by vaults and bridge, and should be registered in a /// shared address manager on the L1, therefore, a registered IQuotaManager and its per-token /// quota settings will be shared by all Taiko L2s. To enable a per-L2 quota, we need to modify /// this function to: /// `function consumeQuota(uint256 _srcChainId, address _token, uint256 _amount) ` /// /// @param _token The token address. Ether is represented with address(0). /// @param _amount The amount of quota to consume. function consumeQuota(address _token, uint256 _amount) external; }
node_modules/@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol) pragma solidity ^0.8.2; import "../../utils/AddressUpgradeable.sol"; /** * @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] * ```solidity * 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. * * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a * constructor. * * Emits an {Initialized} event. */ modifier initializer() { bool isTopLevelCall = !_initializing; require( (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1), "Initializable: contract is already initialized" ); _initialized = 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. * * 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. * * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer` * cannot be nested. If one is invoked in the context of another, execution will revert. * * 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. * * WARNING: setting the version to 255 will prevent any future reinitialization. * * Emits an {Initialized} event. */ modifier reinitializer(uint8 version) { require(!_initializing && _initialized < version, "Initializable: contract is already initialized"); _initialized = version; _initializing = true; _; _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. * * Emits an {Initialized} event the first time it is successfully executed. */ function _disableInitializers() internal virtual { require(!_initializing, "Initializable: contract is initializing"); if (_initialized != type(uint8).max) { _initialized = type(uint8).max; emit Initialized(type(uint8).max); } } /** * @dev Returns the highest version that has been initialized. See {reinitializer}. */ function _getInitializedVersion() internal view returns (uint8) { return _initialized; } /** * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}. */ function _isInitializing() internal view returns (bool) { return _initializing; } }
node_modules/@openzeppelin/contracts-upgradeable/utils/cryptography/EIP712Upgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/EIP712.sol) pragma solidity ^0.8.8; import "./ECDSAUpgradeable.sol"; import "../../interfaces/IERC5267Upgradeable.sol"; import {Initializable} from "../../proxy/utils/Initializable.sol"; /** * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data. * * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible, * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding * they need in their contracts using a combination of `abi.encode` and `keccak256`. * * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA * ({_hashTypedDataV4}). * * The implementation of the domain separator was designed to be as efficient as possible while still properly updating * the chain id to protect against replay attacks on an eventual fork of the chain. * * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask]. * * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain * separator of the implementation contract. This will cause the `_domainSeparatorV4` function to always rebuild the * separator from the immutable values, which is cheaper than accessing a cached version in cold storage. * * _Available since v3.4._ * * @custom:storage-size 52 */ abstract contract EIP712Upgradeable is Initializable, IERC5267Upgradeable { bytes32 private constant _TYPE_HASH = keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"); /// @custom:oz-renamed-from _HASHED_NAME bytes32 private _hashedName; /// @custom:oz-renamed-from _HASHED_VERSION bytes32 private _hashedVersion; string private _name; string private _version; /** * @dev Initializes the domain separator and parameter caches. * * The meaning of `name` and `version` is specified in * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]: * * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol. * - `version`: the current major version of the signing domain. * * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart * contract upgrade]. */ function __EIP712_init(string memory name, string memory version) internal onlyInitializing { __EIP712_init_unchained(name, version); } function __EIP712_init_unchained(string memory name, string memory version) internal onlyInitializing { _name = name; _version = version; // Reset prior values in storage if upgrading _hashedName = 0; _hashedVersion = 0; } /** * @dev Returns the domain separator for the current chain. */ function _domainSeparatorV4() internal view returns (bytes32) { return _buildDomainSeparator(); } function _buildDomainSeparator() private view returns (bytes32) { return keccak256(abi.encode(_TYPE_HASH, _EIP712NameHash(), _EIP712VersionHash(), block.chainid, address(this))); } /** * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this * function returns the hash of the fully encoded EIP712 message for this domain. * * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example: * * ```solidity * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode( * keccak256("Mail(address to,string contents)"), * mailTo, * keccak256(bytes(mailContents)) * ))); * address signer = ECDSA.recover(digest, signature); * ``` */ function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) { return ECDSAUpgradeable.toTypedDataHash(_domainSeparatorV4(), structHash); } /** * @dev See {EIP-5267}. * * _Available since v4.9._ */ function eip712Domain() public view virtual override returns ( bytes1 fields, string memory name, string memory version, uint256 chainId, address verifyingContract, bytes32 salt, uint256[] memory extensions ) { // If the hashed name and version in storage are non-zero, the contract hasn't been properly initialized // and the EIP712 domain is not reliable, as it will be missing name and version. require(_hashedName == 0 && _hashedVersion == 0, "EIP712: Uninitialized"); return ( hex"0f", // 01111 _EIP712Name(), _EIP712Version(), block.chainid, address(this), bytes32(0), new uint256[](0) ); } /** * @dev The name parameter for the EIP712 domain. * * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs * are a concern. */ function _EIP712Name() internal virtual view returns (string memory) { return _name; } /** * @dev The version parameter for the EIP712 domain. * * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs * are a concern. */ function _EIP712Version() internal virtual view returns (string memory) { return _version; } /** * @dev The hash of the name parameter for the EIP712 domain. * * NOTE: In previous versions this function was virtual. In this version you should override `_EIP712Name` instead. */ function _EIP712NameHash() internal view returns (bytes32) { string memory name = _EIP712Name(); if (bytes(name).length > 0) { return keccak256(bytes(name)); } else { // If the name is empty, the contract may have been upgraded without initializing the new storage. // We return the name hash in storage if non-zero, otherwise we assume the name is empty by design. bytes32 hashedName = _hashedName; if (hashedName != 0) { return hashedName; } else { return keccak256(""); } } } /** * @dev The hash of the version parameter for the EIP712 domain. * * NOTE: In previous versions this function was virtual. In this version you should override `_EIP712Version` instead. */ function _EIP712VersionHash() internal view returns (bytes32) { string memory version = _EIP712Version(); if (bytes(version).length > 0) { return keccak256(bytes(version)); } else { // If the version is empty, the contract may have been upgraded without initializing the new storage. // We return the version hash in storage if non-zero, otherwise we assume the version is empty by design. bytes32 hashedVersion = _hashedVersion; if (hashedVersion != 0) { return hashedVersion; } else { return keccak256(""); } } } /** * @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[48] private __gap; }
node_modules/@openzeppelin/contracts/utils/introspection/IERC165.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
node_modules/@openzeppelin/contracts/proxy/beacon/IBeacon.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol) pragma solidity ^0.8.0; /** * @dev This is the interface that {BeaconProxy} expects of its beacon. */ interface IBeacon { /** * @dev Must return an address that can be used as a delegate call target. * * {BeaconProxy} will check that this address is a contract. */ function implementation() external view returns (address); }
node_modules/@openzeppelin/contracts-upgradeable/access/Ownable2StepUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable2Step.sol) pragma solidity ^0.8.0; import "./OwnableUpgradeable.sol"; import {Initializable} from "../proxy/utils/Initializable.sol"; /** * @dev Contract module which provides 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} and {acceptOwnership}. * * This module is used through inheritance. It will make available all functions * from parent (Ownable). */ abstract contract Ownable2StepUpgradeable is Initializable, OwnableUpgradeable { address private _pendingOwner; event OwnershipTransferStarted(address indexed previousOwner, address indexed newOwner); function __Ownable2Step_init() internal onlyInitializing { __Ownable_init_unchained(); } function __Ownable2Step_init_unchained() internal onlyInitializing { } /** * @dev Returns the address of the pending owner. */ function pendingOwner() public view virtual returns (address) { return _pendingOwner; } /** * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one. * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual override onlyOwner { _pendingOwner = newOwner; emit OwnershipTransferStarted(owner(), newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner. * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual override { delete _pendingOwner; super._transferOwnership(newOwner); } /** * @dev The new owner accepts the ownership transfer. */ function acceptOwnership() public virtual { address sender = _msgSender(); require(pendingOwner() == sender, "Ownable2Step: caller is not the new owner"); _transferOwnership(sender); } /** * @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; }
node_modules/@openzeppelin/contracts-upgradeable/utils/math/SafeCastUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SafeCast.sol) // This file was procedurally generated from scripts/generate/templates/SafeCast.js. pragma solidity ^0.8.0; /** * @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow * checks. * * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can * easily result in undesired exploitation or bugs, since developers usually * assume that overflows raise errors. `SafeCast` restores this intuition by * reverting the transaction when such an operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. * * Can be combined with {SafeMath} and {SignedSafeMath} to extend it to smaller types, by performing * all math on `uint256` and `int256` and then downcasting. */ library SafeCastUpgradeable { /** * @dev Returns the downcasted uint248 from uint256, reverting on * overflow (when the input is greater than largest uint248). * * Counterpart to Solidity's `uint248` operator. * * Requirements: * * - input must fit into 248 bits * * _Available since v4.7._ */ function toUint248(uint256 value) internal pure returns (uint248) { require(value <= type(uint248).max, "SafeCast: value doesn't fit in 248 bits"); return uint248(value); } /** * @dev Returns the downcasted uint240 from uint256, reverting on * overflow (when the input is greater than largest uint240). * * Counterpart to Solidity's `uint240` operator. * * Requirements: * * - input must fit into 240 bits * * _Available since v4.7._ */ function toUint240(uint256 value) internal pure returns (uint240) { require(value <= type(uint240).max, "SafeCast: value doesn't fit in 240 bits"); return uint240(value); } /** * @dev Returns the downcasted uint232 from uint256, reverting on * overflow (when the input is greater than largest uint232). * * Counterpart to Solidity's `uint232` operator. * * Requirements: * * - input must fit into 232 bits * * _Available since v4.7._ */ function toUint232(uint256 value) internal pure returns (uint232) { require(value <= type(uint232).max, "SafeCast: value doesn't fit in 232 bits"); return uint232(value); } /** * @dev Returns the downcasted uint224 from uint256, reverting on * overflow (when the input is greater than largest uint224). * * Counterpart to Solidity's `uint224` operator. * * Requirements: * * - input must fit into 224 bits * * _Available since v4.2._ */ function toUint224(uint256 value) internal pure returns (uint224) { require(value <= type(uint224).max, "SafeCast: value doesn't fit in 224 bits"); return uint224(value); } /** * @dev Returns the downcasted uint216 from uint256, reverting on * overflow (when the input is greater than largest uint216). * * Counterpart to Solidity's `uint216` operator. * * Requirements: * * - input must fit into 216 bits * * _Available since v4.7._ */ function toUint216(uint256 value) internal pure returns (uint216) { require(value <= type(uint216).max, "SafeCast: value doesn't fit in 216 bits"); return uint216(value); } /** * @dev Returns the downcasted uint208 from uint256, reverting on * overflow (when the input is greater than largest uint208). * * Counterpart to Solidity's `uint208` operator. * * Requirements: * * - input must fit into 208 bits * * _Available since v4.7._ */ function toUint208(uint256 value) internal pure returns (uint208) { require(value <= type(uint208).max, "SafeCast: value doesn't fit in 208 bits"); return uint208(value); } /** * @dev Returns the downcasted uint200 from uint256, reverting on * overflow (when the input is greater than largest uint200). * * Counterpart to Solidity's `uint200` operator. * * Requirements: * * - input must fit into 200 bits * * _Available since v4.7._ */ function toUint200(uint256 value) internal pure returns (uint200) { require(value <= type(uint200).max, "SafeCast: value doesn't fit in 200 bits"); return uint200(value); } /** * @dev Returns the downcasted uint192 from uint256, reverting on * overflow (when the input is greater than largest uint192). * * Counterpart to Solidity's `uint192` operator. * * Requirements: * * - input must fit into 192 bits * * _Available since v4.7._ */ function toUint192(uint256 value) internal pure returns (uint192) { require(value <= type(uint192).max, "SafeCast: value doesn't fit in 192 bits"); return uint192(value); } /** * @dev Returns the downcasted uint184 from uint256, reverting on * overflow (when the input is greater than largest uint184). * * Counterpart to Solidity's `uint184` operator. * * Requirements: * * - input must fit into 184 bits * * _Available since v4.7._ */ function toUint184(uint256 value) internal pure returns (uint184) { require(value <= type(uint184).max, "SafeCast: value doesn't fit in 184 bits"); return uint184(value); } /** * @dev Returns the downcasted uint176 from uint256, reverting on * overflow (when the input is greater than largest uint176). * * Counterpart to Solidity's `uint176` operator. * * Requirements: * * - input must fit into 176 bits * * _Available since v4.7._ */ function toUint176(uint256 value) internal pure returns (uint176) { require(value <= type(uint176).max, "SafeCast: value doesn't fit in 176 bits"); return uint176(value); } /** * @dev Returns the downcasted uint168 from uint256, reverting on * overflow (when the input is greater than largest uint168). * * Counterpart to Solidity's `uint168` operator. * * Requirements: * * - input must fit into 168 bits * * _Available since v4.7._ */ function toUint168(uint256 value) internal pure returns (uint168) { require(value <= type(uint168).max, "SafeCast: value doesn't fit in 168 bits"); return uint168(value); } /** * @dev Returns the downcasted uint160 from uint256, reverting on * overflow (when the input is greater than largest uint160). * * Counterpart to Solidity's `uint160` operator. * * Requirements: * * - input must fit into 160 bits * * _Available since v4.7._ */ function toUint160(uint256 value) internal pure returns (uint160) { require(value <= type(uint160).max, "SafeCast: value doesn't fit in 160 bits"); return uint160(value); } /** * @dev Returns the downcasted uint152 from uint256, reverting on * overflow (when the input is greater than largest uint152). * * Counterpart to Solidity's `uint152` operator. * * Requirements: * * - input must fit into 152 bits * * _Available since v4.7._ */ function toUint152(uint256 value) internal pure returns (uint152) { require(value <= type(uint152).max, "SafeCast: value doesn't fit in 152 bits"); return uint152(value); } /** * @dev Returns the downcasted uint144 from uint256, reverting on * overflow (when the input is greater than largest uint144). * * Counterpart to Solidity's `uint144` operator. * * Requirements: * * - input must fit into 144 bits * * _Available since v4.7._ */ function toUint144(uint256 value) internal pure returns (uint144) { require(value <= type(uint144).max, "SafeCast: value doesn't fit in 144 bits"); return uint144(value); } /** * @dev Returns the downcasted uint136 from uint256, reverting on * overflow (when the input is greater than largest uint136). * * Counterpart to Solidity's `uint136` operator. * * Requirements: * * - input must fit into 136 bits * * _Available since v4.7._ */ function toUint136(uint256 value) internal pure returns (uint136) { require(value <= type(uint136).max, "SafeCast: value doesn't fit in 136 bits"); return uint136(value); } /** * @dev Returns the downcasted uint128 from uint256, reverting on * overflow (when the input is greater than largest uint128). * * Counterpart to Solidity's `uint128` operator. * * Requirements: * * - input must fit into 128 bits * * _Available since v2.5._ */ function toUint128(uint256 value) internal pure returns (uint128) { require(value <= type(uint128).max, "SafeCast: value doesn't fit in 128 bits"); return uint128(value); } /** * @dev Returns the downcasted uint120 from uint256, reverting on * overflow (when the input is greater than largest uint120). * * Counterpart to Solidity's `uint120` operator. * * Requirements: * * - input must fit into 120 bits * * _Available since v4.7._ */ function toUint120(uint256 value) internal pure returns (uint120) { require(value <= type(uint120).max, "SafeCast: value doesn't fit in 120 bits"); return uint120(value); } /** * @dev Returns the downcasted uint112 from uint256, reverting on * overflow (when the input is greater than largest uint112). * * Counterpart to Solidity's `uint112` operator. * * Requirements: * * - input must fit into 112 bits * * _Available since v4.7._ */ function toUint112(uint256 value) internal pure returns (uint112) { require(value <= type(uint112).max, "SafeCast: value doesn't fit in 112 bits"); return uint112(value); } /** * @dev Returns the downcasted uint104 from uint256, reverting on * overflow (when the input is greater than largest uint104). * * Counterpart to Solidity's `uint104` operator. * * Requirements: * * - input must fit into 104 bits * * _Available since v4.7._ */ function toUint104(uint256 value) internal pure returns (uint104) { require(value <= type(uint104).max, "SafeCast: value doesn't fit in 104 bits"); return uint104(value); } /** * @dev Returns the downcasted uint96 from uint256, reverting on * overflow (when the input is greater than largest uint96). * * Counterpart to Solidity's `uint96` operator. * * Requirements: * * - input must fit into 96 bits * * _Available since v4.2._ */ function toUint96(uint256 value) internal pure returns (uint96) { require(value <= type(uint96).max, "SafeCast: value doesn't fit in 96 bits"); return uint96(value); } /** * @dev Returns the downcasted uint88 from uint256, reverting on * overflow (when the input is greater than largest uint88). * * Counterpart to Solidity's `uint88` operator. * * Requirements: * * - input must fit into 88 bits * * _Available since v4.7._ */ function toUint88(uint256 value) internal pure returns (uint88) { require(value <= type(uint88).max, "SafeCast: value doesn't fit in 88 bits"); return uint88(value); } /** * @dev Returns the downcasted uint80 from uint256, reverting on * overflow (when the input is greater than largest uint80). * * Counterpart to Solidity's `uint80` operator. * * Requirements: * * - input must fit into 80 bits * * _Available since v4.7._ */ function toUint80(uint256 value) internal pure returns (uint80) { require(value <= type(uint80).max, "SafeCast: value doesn't fit in 80 bits"); return uint80(value); } /** * @dev Returns the downcasted uint72 from uint256, reverting on * overflow (when the input is greater than largest uint72). * * Counterpart to Solidity's `uint72` operator. * * Requirements: * * - input must fit into 72 bits * * _Available since v4.7._ */ function toUint72(uint256 value) internal pure returns (uint72) { require(value <= type(uint72).max, "SafeCast: value doesn't fit in 72 bits"); return uint72(value); } /** * @dev Returns the downcasted uint64 from uint256, reverting on * overflow (when the input is greater than largest uint64). * * Counterpart to Solidity's `uint64` operator. * * Requirements: * * - input must fit into 64 bits * * _Available since v2.5._ */ function toUint64(uint256 value) internal pure returns (uint64) { require(value <= type(uint64).max, "SafeCast: value doesn't fit in 64 bits"); return uint64(value); } /** * @dev Returns the downcasted uint56 from uint256, reverting on * overflow (when the input is greater than largest uint56). * * Counterpart to Solidity's `uint56` operator. * * Requirements: * * - input must fit into 56 bits * * _Available since v4.7._ */ function toUint56(uint256 value) internal pure returns (uint56) { require(value <= type(uint56).max, "SafeCast: value doesn't fit in 56 bits"); return uint56(value); } /** * @dev Returns the downcasted uint48 from uint256, reverting on * overflow (when the input is greater than largest uint48). * * Counterpart to Solidity's `uint48` operator. * * Requirements: * * - input must fit into 48 bits * * _Available since v4.7._ */ function toUint48(uint256 value) internal pure returns (uint48) { require(value <= type(uint48).max, "SafeCast: value doesn't fit in 48 bits"); return uint48(value); } /** * @dev Returns the downcasted uint40 from uint256, reverting on * overflow (when the input is greater than largest uint40). * * Counterpart to Solidity's `uint40` operator. * * Requirements: * * - input must fit into 40 bits * * _Available since v4.7._ */ function toUint40(uint256 value) internal pure returns (uint40) { require(value <= type(uint40).max, "SafeCast: value doesn't fit in 40 bits"); return uint40(value); } /** * @dev Returns the downcasted uint32 from uint256, reverting on * overflow (when the input is greater than largest uint32). * * Counterpart to Solidity's `uint32` operator. * * Requirements: * * - input must fit into 32 bits * * _Available since v2.5._ */ function toUint32(uint256 value) internal pure returns (uint32) { require(value <= type(uint32).max, "SafeCast: value doesn't fit in 32 bits"); return uint32(value); } /** * @dev Returns the downcasted uint24 from uint256, reverting on * overflow (when the input is greater than largest uint24). * * Counterpart to Solidity's `uint24` operator. * * Requirements: * * - input must fit into 24 bits * * _Available since v4.7._ */ function toUint24(uint256 value) internal pure returns (uint24) { require(value <= type(uint24).max, "SafeCast: value doesn't fit in 24 bits"); return uint24(value); } /** * @dev Returns the downcasted uint16 from uint256, reverting on * overflow (when the input is greater than largest uint16). * * Counterpart to Solidity's `uint16` operator. * * Requirements: * * - input must fit into 16 bits * * _Available since v2.5._ */ function toUint16(uint256 value) internal pure returns (uint16) { require(value <= type(uint16).max, "SafeCast: value doesn't fit in 16 bits"); return uint16(value); } /** * @dev Returns the downcasted uint8 from uint256, reverting on * overflow (when the input is greater than largest uint8). * * Counterpart to Solidity's `uint8` operator. * * Requirements: * * - input must fit into 8 bits * * _Available since v2.5._ */ function toUint8(uint256 value) internal pure returns (uint8) { require(value <= type(uint8).max, "SafeCast: value doesn't fit in 8 bits"); return uint8(value); } /** * @dev Converts a signed int256 into an unsigned uint256. * * Requirements: * * - input must be greater than or equal to 0. * * _Available since v3.0._ */ function toUint256(int256 value) internal pure returns (uint256) { require(value >= 0, "SafeCast: value must be positive"); return uint256(value); } /** * @dev Returns the downcasted int248 from int256, reverting on * overflow (when the input is less than smallest int248 or * greater than largest int248). * * Counterpart to Solidity's `int248` operator. * * Requirements: * * - input must fit into 248 bits * * _Available since v4.7._ */ function toInt248(int256 value) internal pure returns (int248 downcasted) { downcasted = int248(value); require(downcasted == value, "SafeCast: value doesn't fit in 248 bits"); } /** * @dev Returns the downcasted int240 from int256, reverting on * overflow (when the input is less than smallest int240 or * greater than largest int240). * * Counterpart to Solidity's `int240` operator. * * Requirements: * * - input must fit into 240 bits * * _Available since v4.7._ */ function toInt240(int256 value) internal pure returns (int240 downcasted) { downcasted = int240(value); require(downcasted == value, "SafeCast: value doesn't fit in 240 bits"); } /** * @dev Returns the downcasted int232 from int256, reverting on * overflow (when the input is less than smallest int232 or * greater than largest int232). * * Counterpart to Solidity's `int232` operator. * * Requirements: * * - input must fit into 232 bits * * _Available since v4.7._ */ function toInt232(int256 value) internal pure returns (int232 downcasted) { downcasted = int232(value); require(downcasted == value, "SafeCast: value doesn't fit in 232 bits"); } /** * @dev Returns the downcasted int224 from int256, reverting on * overflow (when the input is less than smallest int224 or * greater than largest int224). * * Counterpart to Solidity's `int224` operator. * * Requirements: * * - input must fit into 224 bits * * _Available since v4.7._ */ function toInt224(int256 value) internal pure returns (int224 downcasted) { downcasted = int224(value); require(downcasted == value, "SafeCast: value doesn't fit in 224 bits"); } /** * @dev Returns the downcasted int216 from int256, reverting on * overflow (when the input is less than smallest int216 or * greater than largest int216). * * Counterpart to Solidity's `int216` operator. * * Requirements: * * - input must fit into 216 bits * * _Available since v4.7._ */ function toInt216(int256 value) internal pure returns (int216 downcasted) { downcasted = int216(value); require(downcasted == value, "SafeCast: value doesn't fit in 216 bits"); } /** * @dev Returns the downcasted int208 from int256, reverting on * overflow (when the input is less than smallest int208 or * greater than largest int208). * * Counterpart to Solidity's `int208` operator. * * Requirements: * * - input must fit into 208 bits * * _Available since v4.7._ */ function toInt208(int256 value) internal pure returns (int208 downcasted) { downcasted = int208(value); require(downcasted == value, "SafeCast: value doesn't fit in 208 bits"); } /** * @dev Returns the downcasted int200 from int256, reverting on * overflow (when the input is less than smallest int200 or * greater than largest int200). * * Counterpart to Solidity's `int200` operator. * * Requirements: * * - input must fit into 200 bits * * _Available since v4.7._ */ function toInt200(int256 value) internal pure returns (int200 downcasted) { downcasted = int200(value); require(downcasted == value, "SafeCast: value doesn't fit in 200 bits"); } /** * @dev Returns the downcasted int192 from int256, reverting on * overflow (when the input is less than smallest int192 or * greater than largest int192). * * Counterpart to Solidity's `int192` operator. * * Requirements: * * - input must fit into 192 bits * * _Available since v4.7._ */ function toInt192(int256 value) internal pure returns (int192 downcasted) { downcasted = int192(value); require(downcasted == value, "SafeCast: value doesn't fit in 192 bits"); } /** * @dev Returns the downcasted int184 from int256, reverting on * overflow (when the input is less than smallest int184 or * greater than largest int184). * * Counterpart to Solidity's `int184` operator. * * Requirements: * * - input must fit into 184 bits * * _Available since v4.7._ */ function toInt184(int256 value) internal pure returns (int184 downcasted) { downcasted = int184(value); require(downcasted == value, "SafeCast: value doesn't fit in 184 bits"); } /** * @dev Returns the downcasted int176 from int256, reverting on * overflow (when the input is less than smallest int176 or * greater than largest int176). * * Counterpart to Solidity's `int176` operator. * * Requirements: * * - input must fit into 176 bits * * _Available since v4.7._ */ function toInt176(int256 value) internal pure returns (int176 downcasted) { downcasted = int176(value); require(downcasted == value, "SafeCast: value doesn't fit in 176 bits"); } /** * @dev Returns the downcasted int168 from int256, reverting on * overflow (when the input is less than smallest int168 or * greater than largest int168). * * Counterpart to Solidity's `int168` operator. * * Requirements: * * - input must fit into 168 bits * * _Available since v4.7._ */ function toInt168(int256 value) internal pure returns (int168 downcasted) { downcasted = int168(value); require(downcasted == value, "SafeCast: value doesn't fit in 168 bits"); } /** * @dev Returns the downcasted int160 from int256, reverting on * overflow (when the input is less than smallest int160 or * greater than largest int160). * * Counterpart to Solidity's `int160` operator. * * Requirements: * * - input must fit into 160 bits * * _Available since v4.7._ */ function toInt160(int256 value) internal pure returns (int160 downcasted) { downcasted = int160(value); require(downcasted == value, "SafeCast: value doesn't fit in 160 bits"); } /** * @dev Returns the downcasted int152 from int256, reverting on * overflow (when the input is less than smallest int152 or * greater than largest int152). * * Counterpart to Solidity's `int152` operator. * * Requirements: * * - input must fit into 152 bits * * _Available since v4.7._ */ function toInt152(int256 value) internal pure returns (int152 downcasted) { downcasted = int152(value); require(downcasted == value, "SafeCast: value doesn't fit in 152 bits"); } /** * @dev Returns the downcasted int144 from int256, reverting on * overflow (when the input is less than smallest int144 or * greater than largest int144). * * Counterpart to Solidity's `int144` operator. * * Requirements: * * - input must fit into 144 bits * * _Available since v4.7._ */ function toInt144(int256 value) internal pure returns (int144 downcasted) { downcasted = int144(value); require(downcasted == value, "SafeCast: value doesn't fit in 144 bits"); } /** * @dev Returns the downcasted int136 from int256, reverting on * overflow (when the input is less than smallest int136 or * greater than largest int136). * * Counterpart to Solidity's `int136` operator. * * Requirements: * * - input must fit into 136 bits * * _Available since v4.7._ */ function toInt136(int256 value) internal pure returns (int136 downcasted) { downcasted = int136(value); require(downcasted == value, "SafeCast: value doesn't fit in 136 bits"); } /** * @dev Returns the downcasted int128 from int256, reverting on * overflow (when the input is less than smallest int128 or * greater than largest int128). * * Counterpart to Solidity's `int128` operator. * * Requirements: * * - input must fit into 128 bits * * _Available since v3.1._ */ function toInt128(int256 value) internal pure returns (int128 downcasted) { downcasted = int128(value); require(downcasted == value, "SafeCast: value doesn't fit in 128 bits"); } /** * @dev Returns the downcasted int120 from int256, reverting on * overflow (when the input is less than smallest int120 or * greater than largest int120). * * Counterpart to Solidity's `int120` operator. * * Requirements: * * - input must fit into 120 bits * * _Available since v4.7._ */ function toInt120(int256 value) internal pure returns (int120 downcasted) { downcasted = int120(value); require(downcasted == value, "SafeCast: value doesn't fit in 120 bits"); } /** * @dev Returns the downcasted int112 from int256, reverting on * overflow (when the input is less than smallest int112 or * greater than largest int112). * * Counterpart to Solidity's `int112` operator. * * Requirements: * * - input must fit into 112 bits * * _Available since v4.7._ */ function toInt112(int256 value) internal pure returns (int112 downcasted) { downcasted = int112(value); require(downcasted == value, "SafeCast: value doesn't fit in 112 bits"); } /** * @dev Returns the downcasted int104 from int256, reverting on * overflow (when the input is less than smallest int104 or * greater than largest int104). * * Counterpart to Solidity's `int104` operator. * * Requirements: * * - input must fit into 104 bits * * _Available since v4.7._ */ function toInt104(int256 value) internal pure returns (int104 downcasted) { downcasted = int104(value); require(downcasted == value, "SafeCast: value doesn't fit in 104 bits"); } /** * @dev Returns the downcasted int96 from int256, reverting on * overflow (when the input is less than smallest int96 or * greater than largest int96). * * Counterpart to Solidity's `int96` operator. * * Requirements: * * - input must fit into 96 bits * * _Available since v4.7._ */ function toInt96(int256 value) internal pure returns (int96 downcasted) { downcasted = int96(value); require(downcasted == value, "SafeCast: value doesn't fit in 96 bits"); } /** * @dev Returns the downcasted int88 from int256, reverting on * overflow (when the input is less than smallest int88 or * greater than largest int88). * * Counterpart to Solidity's `int88` operator. * * Requirements: * * - input must fit into 88 bits * * _Available since v4.7._ */ function toInt88(int256 value) internal pure returns (int88 downcasted) { downcasted = int88(value); require(downcasted == value, "SafeCast: value doesn't fit in 88 bits"); } /** * @dev Returns the downcasted int80 from int256, reverting on * overflow (when the input is less than smallest int80 or * greater than largest int80). * * Counterpart to Solidity's `int80` operator. * * Requirements: * * - input must fit into 80 bits * * _Available since v4.7._ */ function toInt80(int256 value) internal pure returns (int80 downcasted) { downcasted = int80(value); require(downcasted == value, "SafeCast: value doesn't fit in 80 bits"); } /** * @dev Returns the downcasted int72 from int256, reverting on * overflow (when the input is less than smallest int72 or * greater than largest int72). * * Counterpart to Solidity's `int72` operator. * * Requirements: * * - input must fit into 72 bits * * _Available since v4.7._ */ function toInt72(int256 value) internal pure returns (int72 downcasted) { downcasted = int72(value); require(downcasted == value, "SafeCast: value doesn't fit in 72 bits"); } /** * @dev Returns the downcasted int64 from int256, reverting on * overflow (when the input is less than smallest int64 or * greater than largest int64). * * Counterpart to Solidity's `int64` operator. * * Requirements: * * - input must fit into 64 bits * * _Available since v3.1._ */ function toInt64(int256 value) internal pure returns (int64 downcasted) { downcasted = int64(value); require(downcasted == value, "SafeCast: value doesn't fit in 64 bits"); } /** * @dev Returns the downcasted int56 from int256, reverting on * overflow (when the input is less than smallest int56 or * greater than largest int56). * * Counterpart to Solidity's `int56` operator. * * Requirements: * * - input must fit into 56 bits * * _Available since v4.7._ */ function toInt56(int256 value) internal pure returns (int56 downcasted) { downcasted = int56(value); require(downcasted == value, "SafeCast: value doesn't fit in 56 bits"); } /** * @dev Returns the downcasted int48 from int256, reverting on * overflow (when the input is less than smallest int48 or * greater than largest int48). * * Counterpart to Solidity's `int48` operator. * * Requirements: * * - input must fit into 48 bits * * _Available since v4.7._ */ function toInt48(int256 value) internal pure returns (int48 downcasted) { downcasted = int48(value); require(downcasted == value, "SafeCast: value doesn't fit in 48 bits"); } /** * @dev Returns the downcasted int40 from int256, reverting on * overflow (when the input is less than smallest int40 or * greater than largest int40). * * Counterpart to Solidity's `int40` operator. * * Requirements: * * - input must fit into 40 bits * * _Available since v4.7._ */ function toInt40(int256 value) internal pure returns (int40 downcasted) { downcasted = int40(value); require(downcasted == value, "SafeCast: value doesn't fit in 40 bits"); } /** * @dev Returns the downcasted int32 from int256, reverting on * overflow (when the input is less than smallest int32 or * greater than largest int32). * * Counterpart to Solidity's `int32` operator. * * Requirements: * * - input must fit into 32 bits * * _Available since v3.1._ */ function toInt32(int256 value) internal pure returns (int32 downcasted) { downcasted = int32(value); require(downcasted == value, "SafeCast: value doesn't fit in 32 bits"); } /** * @dev Returns the downcasted int24 from int256, reverting on * overflow (when the input is less than smallest int24 or * greater than largest int24). * * Counterpart to Solidity's `int24` operator. * * Requirements: * * - input must fit into 24 bits * * _Available since v4.7._ */ function toInt24(int256 value) internal pure returns (int24 downcasted) { downcasted = int24(value); require(downcasted == value, "SafeCast: value doesn't fit in 24 bits"); } /** * @dev Returns the downcasted int16 from int256, reverting on * overflow (when the input is less than smallest int16 or * greater than largest int16). * * Counterpart to Solidity's `int16` operator. * * Requirements: * * - input must fit into 16 bits * * _Available since v3.1._ */ function toInt16(int256 value) internal pure returns (int16 downcasted) { downcasted = int16(value); require(downcasted == value, "SafeCast: value doesn't fit in 16 bits"); } /** * @dev Returns the downcasted int8 from int256, reverting on * overflow (when the input is less than smallest int8 or * greater than largest int8). * * Counterpart to Solidity's `int8` operator. * * Requirements: * * - input must fit into 8 bits * * _Available since v3.1._ */ function toInt8(int256 value) internal pure returns (int8 downcasted) { downcasted = int8(value); require(downcasted == value, "SafeCast: value doesn't fit in 8 bits"); } /** * @dev Converts an unsigned uint256 into a signed int256. * * Requirements: * * - input must be less than or equal to maxInt256. * * _Available since v3.0._ */ function toInt256(uint256 value) internal pure returns (int256) { // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive require(value <= uint256(type(int256).max), "SafeCast: value doesn't fit in an int256"); return int256(value); } }
contracts/shared/common/LibMath.sol
// SPDX-License-Identifier: MIT pragma solidity ^0.8.24; /// @title LibMath /// @dev This library offers additional math functions for uint256. /// @custom:security-contact security@taiko.xyz library LibMath { /// @dev Returns the smaller of the two given values. /// @param _a The first number to compare. /// @param _b The second number to compare. /// @return The smaller of the two numbers. function min(uint256 _a, uint256 _b) internal pure returns (uint256) { return _a > _b ? _b : _a; } /// @dev Returns the larger of the two given values. /// @param _a The first number to compare. /// @param _b The second number to compare. /// @return The larger of the two numbers. function max(uint256 _a, uint256 _b) internal pure returns (uint256) { return _a > _b ? _a : _b; } }
node_modules/@openzeppelin/contracts-upgradeable/token/ERC20/extensions/ERC20PermitUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.4) (token/ERC20/extensions/ERC20Permit.sol) pragma solidity ^0.8.0; import "./IERC20PermitUpgradeable.sol"; import "../ERC20Upgradeable.sol"; import "../../../utils/cryptography/ECDSAUpgradeable.sol"; import "../../../utils/cryptography/EIP712Upgradeable.sol"; import "../../../utils/CountersUpgradeable.sol"; import {Initializable} from "../../../proxy/utils/Initializable.sol"; /** * @dev Implementation of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. * * _Available since v3.4._ * * @custom:storage-size 51 */ abstract contract ERC20PermitUpgradeable is Initializable, ERC20Upgradeable, IERC20PermitUpgradeable, EIP712Upgradeable { using CountersUpgradeable for CountersUpgradeable.Counter; mapping(address => CountersUpgradeable.Counter) private _nonces; // solhint-disable-next-line var-name-mixedcase bytes32 private constant _PERMIT_TYPEHASH = keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); /** * @dev In previous versions `_PERMIT_TYPEHASH` was declared as `immutable`. * However, to ensure consistency with the upgradeable transpiler, we will continue * to reserve a slot. * @custom:oz-renamed-from _PERMIT_TYPEHASH */ // solhint-disable-next-line var-name-mixedcase bytes32 private _PERMIT_TYPEHASH_DEPRECATED_SLOT; /** * @dev Initializes the {EIP712} domain separator using the `name` parameter, and setting `version` to `"1"`. * * It's a good idea to use the same `name` that is defined as the ERC20 token name. */ function __ERC20Permit_init(string memory name) internal onlyInitializing { __EIP712_init_unchained(name, "1"); } function __ERC20Permit_init_unchained(string memory) internal onlyInitializing {} /** * @inheritdoc IERC20PermitUpgradeable */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) public virtual override { require(block.timestamp <= deadline, "ERC20Permit: expired deadline"); bytes32 structHash = keccak256(abi.encode(_PERMIT_TYPEHASH, owner, spender, value, _useNonce(owner), deadline)); bytes32 hash = _hashTypedDataV4(structHash); address signer = ECDSAUpgradeable.recover(hash, v, r, s); require(signer == owner, "ERC20Permit: invalid signature"); _approve(owner, spender, value); } /** * @inheritdoc IERC20PermitUpgradeable */ function nonces(address owner) public view virtual override returns (uint256) { return _nonces[owner].current(); } /** * @inheritdoc IERC20PermitUpgradeable */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view override returns (bytes32) { return _domainSeparatorV4(); } /** * @dev "Consume a nonce": return the current value and increment. * * _Available since v4.1._ */ function _useNonce(address owner) internal virtual returns (uint256 current) { CountersUpgradeable.Counter storage nonce = _nonces[owner]; current = nonce.current(); nonce.increment(); } /** * @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; }
contracts/shared/bridge/IBridge.sol
// SPDX-License-Identifier: MIT pragma solidity ^0.8.24; /// @title IBridge /// @notice The bridge used in conjunction with the {ISignalService}. /// @dev Ether is held by Bridges on L1 and L2s. /// @custom:security-contact security@taiko.xyz interface IBridge { enum Status { NEW, RETRIABLE, DONE, FAILED, RECALLED } enum StatusReason { INVOCATION_OK, INVOCATION_PROHIBITED, INVOCATION_FAILED, OUT_OF_ETH_QUOTA } struct Message { // Message ID whose value is automatically assigned. uint64 id; // The max processing fee for the relayer. This fee has 3 parts: // - the fee for message calldata. // - the minimal fee reserve for general processing, excluding function call. // - the invocation fee for the function call. // Any unpaid fee will be refunded to the destOwner on the destination chain. // Note that fee must be 0 if gasLimit is 0, or large enough to make the invocation fee // non-zero. uint64 fee; // gasLimit that the processMessage call must have. uint32 gasLimit; // The address, EOA or contract, that interacts with this bridge. // The value is automatically assigned. address from; // Source chain ID whose value is automatically assigned. uint64 srcChainId; // The owner of the message on the source chain. address srcOwner; // Destination chain ID where the `to` address lives. uint64 destChainId; // The owner of the message on the destination chain. address destOwner; // The destination address on the destination chain. address to; // value to invoke on the destination chain. uint256 value; // callData to invoke on the destination chain. bytes data; } // Struct representing the context of a bridge operation. // 2 slots struct Context { bytes32 msgHash; // Message hash. address from; // Sender's address. uint64 srcChainId; // Source chain ID. } /// @notice Emitted when a message is sent. /// @param msgHash The hash of the message. /// @param message The message. event MessageSent(bytes32 indexed msgHash, Message message); /// @notice Emitted when the status of a message changes. /// @param msgHash The hash of the message. /// @param status The new status of the message. event MessageStatusChanged(bytes32 indexed msgHash, Status status); /// @notice Sends a message to the destination chain and takes custody /// of Ether required in this contract. /// @param _message The message to be sent. /// @return msgHash_ The hash of the sent message. /// @return message_ The updated message sent. function sendMessage(Message calldata _message) external payable returns (bytes32 msgHash_, Message memory message_); /// @notice Recalls a failed message on its source chain, releasing /// associated assets. /// @dev This function checks if the message failed on the source chain and /// releases associated Ether or tokens. /// @param _message The message whose associated Ether should be released. /// @param _proof The merkle inclusion proof. function recallMessage(Message calldata _message, bytes calldata _proof) external; /// @notice Processes a bridge message on the destination chain. This /// function is callable by any address, including the `message.destOwner`. /// @dev The process begins by hashing the message and checking the message /// status in the bridge If the status is "NEW", the message is invoked. The /// status is updated accordingly, and processing fees are refunded as /// needed. /// @param _message The message to be processed. /// @param _proof The merkle inclusion proof. /// @return The message's status after processing and the reason for the change. function processMessage( Message calldata _message, bytes calldata _proof ) external returns (Status, StatusReason); /// @notice Retries to invoke the messageCall after releasing associated /// Ether and tokens. /// @dev This function can be called by any address, including the /// `message.destOwner`. /// It attempts to invoke the messageCall and updates the message status /// accordingly. /// @param _message The message to retry. /// @param _isLastAttempt Specifies if this is the last attempt to retry the /// message. function retryMessage(Message calldata _message, bool _isLastAttempt) external; /// @notice Mark a message as failed if the message is currently retriable. /// @dev This function can only be called by `message.destOwner`. /// @param _message The message to fail. /// message. function failMessage(Message calldata _message) external; /// @notice Returns the bridge state context. /// @return ctx_ The context of the current bridge operation. function context() external view returns (Context memory ctx_); /// @notice Checks if the message was sent. /// @param _message The message. /// @return true if the message was sent. function isMessageSent(Message calldata _message) external view returns (bool); /// @notice Hash the message /// @param _message The message struct variable to be hashed. /// @return The message's hash. function hashMessage(Message memory _message) external pure returns (bytes32); } /// @title IRecallableSender /// @notice An interface that all recallable message senders shall implement. interface IRecallableSender { /// @notice Called when a message is recalled. /// @param _message The recalled message. /// @param _msgHash The hash of the recalled message. function onMessageRecalled( IBridge.Message calldata _message, bytes32 _msgHash ) external payable; } /// @title IMessageInvocable /// @notice An interface that all bridge message receiver shall implement interface IMessageInvocable { /// @notice Called when this contract is the bridge target. /// @param _data The data for this contract to interpret. /// @dev This method should be guarded with `onlyFromNamed("bridge")`. function onMessageInvocation(bytes calldata _data) external payable; }
node_modules/@openzeppelin/contracts/proxy/utils/UUPSUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/UUPSUpgradeable.sol) pragma solidity ^0.8.0; import "../../interfaces/draft-IERC1822.sol"; import "../ERC1967/ERC1967Upgrade.sol"; /** * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy. * * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing * `UUPSUpgradeable` with a custom implementation of upgrades. * * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism. * * _Available since v4.1._ */ abstract contract UUPSUpgradeable is IERC1822Proxiable, ERC1967Upgrade { /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment address private immutable __self = address(this); /** * @dev Check that the execution is being performed through a delegatecall call and that the execution context is * a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a * function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to * fail. */ modifier onlyProxy() { require(address(this) != __self, "Function must be called through delegatecall"); require(_getImplementation() == __self, "Function must be called through active proxy"); _; } /** * @dev Check that the execution is not being performed through a delegate call. This allows a function to be * callable on the implementing contract but not through proxies. */ modifier notDelegated() { require(address(this) == __self, "UUPSUpgradeable: must not be called through delegatecall"); _; } /** * @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the * implementation. It is used to validate the implementation's compatibility when performing an upgrade. * * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this * function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier. */ function proxiableUUID() external view virtual override notDelegated returns (bytes32) { return _IMPLEMENTATION_SLOT; } /** * @dev Upgrade the implementation of the proxy to `newImplementation`. * * Calls {_authorizeUpgrade}. * * Emits an {Upgraded} event. * * @custom:oz-upgrades-unsafe-allow-reachable delegatecall */ function upgradeTo(address newImplementation) public virtual onlyProxy { _authorizeUpgrade(newImplementation); _upgradeToAndCallUUPS(newImplementation, new bytes(0), false); } /** * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call * encoded in `data`. * * Calls {_authorizeUpgrade}. * * Emits an {Upgraded} event. * * @custom:oz-upgrades-unsafe-allow-reachable delegatecall */ function upgradeToAndCall(address newImplementation, bytes memory data) public payable virtual onlyProxy { _authorizeUpgrade(newImplementation); _upgradeToAndCallUUPS(newImplementation, data, true); } /** * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by * {upgradeTo} and {upgradeToAndCall}. * * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}. * * ```solidity * function _authorizeUpgrade(address) internal override onlyOwner {} * ``` */ function _authorizeUpgrade(address newImplementation) internal virtual; }
node_modules/@openzeppelin/contracts-upgradeable/token/ERC20/extensions/ERC20VotesUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/ERC20Votes.sol) pragma solidity ^0.8.0; import "./ERC20PermitUpgradeable.sol"; import "../../../interfaces/IERC5805Upgradeable.sol"; import "../../../utils/math/MathUpgradeable.sol"; import "../../../utils/math/SafeCastUpgradeable.sol"; import "../../../utils/cryptography/ECDSAUpgradeable.sol"; import {Initializable} from "../../../proxy/utils/Initializable.sol"; /** * @dev Extension of ERC20 to support Compound-like voting and delegation. This version is more generic than Compound's, * and supports token supply up to 2^224^ - 1, while COMP is limited to 2^96^ - 1. * * NOTE: If exact COMP compatibility is required, use the {ERC20VotesComp} variant of this module. * * This extension keeps a history (checkpoints) of each account's vote power. Vote power can be delegated either * by calling the {delegate} function directly, or by providing a signature to be used with {delegateBySig}. Voting * power can be queried through the public accessors {getVotes} and {getPastVotes}. * * By default, token balance does not account for voting power. This makes transfers cheaper. The downside is that it * requires users to delegate to themselves in order to activate checkpoints and have their voting power tracked. * * _Available since v4.2._ */ abstract contract ERC20VotesUpgradeable is Initializable, ERC20PermitUpgradeable, IERC5805Upgradeable { struct Checkpoint { uint32 fromBlock; uint224 votes; } bytes32 private constant _DELEGATION_TYPEHASH = keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)"); mapping(address => address) private _delegates; mapping(address => Checkpoint[]) private _checkpoints; Checkpoint[] private _totalSupplyCheckpoints; function __ERC20Votes_init() internal onlyInitializing { } function __ERC20Votes_init_unchained() internal onlyInitializing { } /** * @dev Clock used for flagging checkpoints. Can be overridden to implement timestamp based checkpoints (and voting). */ function clock() public view virtual override returns (uint48) { return SafeCastUpgradeable.toUint48(block.number); } /** * @dev Description of the clock */ // solhint-disable-next-line func-name-mixedcase function CLOCK_MODE() public view virtual override returns (string memory) { // Check that the clock was not modified require(clock() == block.number, "ERC20Votes: broken clock mode"); return "mode=blocknumber&from=default"; } /** * @dev Get the `pos`-th checkpoint for `account`. */ function checkpoints(address account, uint32 pos) public view virtual returns (Checkpoint memory) { return _checkpoints[account][pos]; } /** * @dev Get number of checkpoints for `account`. */ function numCheckpoints(address account) public view virtual returns (uint32) { return SafeCastUpgradeable.toUint32(_checkpoints[account].length); } /** * @dev Get the address `account` is currently delegating to. */ function delegates(address account) public view virtual override returns (address) { return _delegates[account]; } /** * @dev Gets the current votes balance for `account` */ function getVotes(address account) public view virtual override returns (uint256) { uint256 pos = _checkpoints[account].length; unchecked { return pos == 0 ? 0 : _checkpoints[account][pos - 1].votes; } } /** * @dev Retrieve the number of votes for `account` at the end of `timepoint`. * * Requirements: * * - `timepoint` must be in the past */ function getPastVotes(address account, uint256 timepoint) public view virtual override returns (uint256) { require(timepoint < clock(), "ERC20Votes: future lookup"); return _checkpointsLookup(_checkpoints[account], timepoint); } /** * @dev Retrieve the `totalSupply` at the end of `timepoint`. Note, this value is the sum of all balances. * It is NOT the sum of all the delegated votes! * * Requirements: * * - `timepoint` must be in the past */ function getPastTotalSupply(uint256 timepoint) public view virtual override returns (uint256) { require(timepoint < clock(), "ERC20Votes: future lookup"); return _checkpointsLookup(_totalSupplyCheckpoints, timepoint); } /** * @dev Lookup a value in a list of (sorted) checkpoints. */ function _checkpointsLookup(Checkpoint[] storage ckpts, uint256 timepoint) private view returns (uint256) { // We run a binary search to look for the last (most recent) checkpoint taken before (or at) `timepoint`. // // Initially we check if the block is recent to narrow the search range. // During the loop, the index of the wanted checkpoint remains in the range [low-1, high). // With each iteration, either `low` or `high` is moved towards the middle of the range to maintain the invariant. // - If the middle checkpoint is after `timepoint`, we look in [low, mid) // - If the middle checkpoint is before or equal to `timepoint`, we look in [mid+1, high) // Once we reach a single value (when low == high), we've found the right checkpoint at the index high-1, if not // out of bounds (in which case we're looking too far in the past and the result is 0). // Note that if the latest checkpoint available is exactly for `timepoint`, we end up with an index that is // past the end of the array, so we technically don't find a checkpoint after `timepoint`, but it works out // the same. uint256 length = ckpts.length; uint256 low = 0; uint256 high = length; if (length > 5) { uint256 mid = length - MathUpgradeable.sqrt(length); if (_unsafeAccess(ckpts, mid).fromBlock > timepoint) { high = mid; } else { low = mid + 1; } } while (low < high) { uint256 mid = MathUpgradeable.average(low, high); if (_unsafeAccess(ckpts, mid).fromBlock > timepoint) { high = mid; } else { low = mid + 1; } } unchecked { return high == 0 ? 0 : _unsafeAccess(ckpts, high - 1).votes; } } /** * @dev Delegate votes from the sender to `delegatee`. */ function delegate(address delegatee) public virtual override { _delegate(_msgSender(), delegatee); } /** * @dev Delegates votes from signer to `delegatee` */ function delegateBySig( address delegatee, uint256 nonce, uint256 expiry, uint8 v, bytes32 r, bytes32 s ) public virtual override { require(block.timestamp <= expiry, "ERC20Votes: signature expired"); address signer = ECDSAUpgradeable.recover( _hashTypedDataV4(keccak256(abi.encode(_DELEGATION_TYPEHASH, delegatee, nonce, expiry))), v, r, s ); require(nonce == _useNonce(signer), "ERC20Votes: invalid nonce"); _delegate(signer, delegatee); } /** * @dev Maximum token supply. Defaults to `type(uint224).max` (2^224^ - 1). */ function _maxSupply() internal view virtual returns (uint224) { return type(uint224).max; } /** * @dev Snapshots the totalSupply after it has been increased. */ function _mint(address account, uint256 amount) internal virtual override { super._mint(account, amount); require(totalSupply() <= _maxSupply(), "ERC20Votes: total supply risks overflowing votes"); _writeCheckpoint(_totalSupplyCheckpoints, _add, amount); } /** * @dev Snapshots the totalSupply after it has been decreased. */ function _burn(address account, uint256 amount) internal virtual override { super._burn(account, amount); _writeCheckpoint(_totalSupplyCheckpoints, _subtract, amount); } /** * @dev Move voting power when tokens are transferred. * * Emits a {IVotes-DelegateVotesChanged} event. */ function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual override { super._afterTokenTransfer(from, to, amount); _moveVotingPower(delegates(from), delegates(to), amount); } /** * @dev Change delegation for `delegator` to `delegatee`. * * Emits events {IVotes-DelegateChanged} and {IVotes-DelegateVotesChanged}. */ function _delegate(address delegator, address delegatee) internal virtual { address currentDelegate = delegates(delegator); uint256 delegatorBalance = balanceOf(delegator); _delegates[delegator] = delegatee; emit DelegateChanged(delegator, currentDelegate, delegatee); _moveVotingPower(currentDelegate, delegatee, delegatorBalance); } function _moveVotingPower(address src, address dst, uint256 amount) private { if (src != dst && amount > 0) { if (src != address(0)) { (uint256 oldWeight, uint256 newWeight) = _writeCheckpoint(_checkpoints[src], _subtract, amount); emit DelegateVotesChanged(src, oldWeight, newWeight); } if (dst != address(0)) { (uint256 oldWeight, uint256 newWeight) = _writeCheckpoint(_checkpoints[dst], _add, amount); emit DelegateVotesChanged(dst, oldWeight, newWeight); } } } function _writeCheckpoint( Checkpoint[] storage ckpts, function(uint256, uint256) view returns (uint256) op, uint256 delta ) private returns (uint256 oldWeight, uint256 newWeight) { uint256 pos = ckpts.length; unchecked { Checkpoint memory oldCkpt = pos == 0 ? Checkpoint(0, 0) : _unsafeAccess(ckpts, pos - 1); oldWeight = oldCkpt.votes; newWeight = op(oldWeight, delta); if (pos > 0 && oldCkpt.fromBlock == clock()) { _unsafeAccess(ckpts, pos - 1).votes = SafeCastUpgradeable.toUint224(newWeight); } else { ckpts.push(Checkpoint({fromBlock: SafeCastUpgradeable.toUint32(clock()), votes: SafeCastUpgradeable.toUint224(newWeight)})); } } } function _add(uint256 a, uint256 b) private pure returns (uint256) { return a + b; } function _subtract(uint256 a, uint256 b) private pure returns (uint256) { return a - b; } /** * @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds. */ function _unsafeAccess(Checkpoint[] storage ckpts, uint256 pos) private pure returns (Checkpoint storage result) { assembly { mstore(0, ckpts.slot) result.slot := add(keccak256(0, 0x20), pos) } } /** * @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[47] private __gap; }
contracts/shared/common/AddressResolver.sol
// SPDX-License-Identifier: MIT pragma solidity ^0.8.24; import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"; import "./IAddressManager.sol"; import "./IAddressResolver.sol"; /// @title AddressResolver /// @notice See the documentation in {IAddressResolver}. /// @custom:security-contact security@taiko.xyz abstract contract AddressResolver is IAddressResolver, Initializable { /// @notice Address of the AddressManager. address public addressManager; uint256[49] private __gap; error RESOLVER_DENIED(); error RESOLVER_INVALID_MANAGER(); error RESOLVER_UNEXPECTED_CHAINID(); error RESOLVER_ZERO_ADDR(uint64 chainId, bytes32 name); /// @dev Modifier that ensures the caller is the resolved address of a given /// name. /// @param _name The name to check against. modifier onlyFromNamed(bytes32 _name) { if (msg.sender != resolve(_name, true)) revert RESOLVER_DENIED(); _; } /// @dev Modifier that ensures the caller is the resolved address of a given /// name, if the name is set. /// @param _name The name to check against. modifier onlyFromOptionalNamed(bytes32 _name) { address addr = resolve(_name, true); if (addr != address(0) && msg.sender != addr) revert RESOLVER_DENIED(); _; } /// @dev Modifier that ensures the caller is a resolved address to either _name1 or _name2 /// name. /// @param _name1 The first name to check against. /// @param _name2 The second name to check against. modifier onlyFromNamedEither(bytes32 _name1, bytes32 _name2) { if (msg.sender != resolve(_name1, true) && msg.sender != resolve(_name2, true)) { revert RESOLVER_DENIED(); } _; } /// @custom:oz-upgrades-unsafe-allow constructor constructor() { _disableInitializers(); } /// @inheritdoc IAddressResolver function resolve(bytes32 _name, bool _allowZeroAddress) public view virtual returns (address) { return _resolve(uint64(block.chainid), _name, _allowZeroAddress); } /// @inheritdoc IAddressResolver function resolve( uint64 _chainId, bytes32 _name, bool _allowZeroAddress ) public view virtual returns (address) { return _resolve(_chainId, _name, _allowZeroAddress); } /// @dev Initialization method for setting up AddressManager reference. /// @param _addressManager Address of the AddressManager. function __AddressResolver_init(address _addressManager) internal virtual onlyInitializing { if (block.chainid > type(uint64).max) { revert RESOLVER_UNEXPECTED_CHAINID(); } addressManager = _addressManager; } /// @dev Helper method to resolve name-to-address. /// @param _chainId The chainId of interest. /// @param _name Name whose address is to be resolved. /// @param _allowZeroAddress If set to true, does not throw if the resolved /// address is `address(0)`. /// @return addr_ Address associated with the given name on the specified /// chain. function _resolve( uint64 _chainId, bytes32 _name, bool _allowZeroAddress ) internal view returns (address addr_) { addr_ = _getAddress(_chainId, _name); if (!_allowZeroAddress && addr_ == address(0)) { revert RESOLVER_ZERO_ADDR(_chainId, _name); } } function _getAddress(uint64 _chainId, bytes32 _name) internal view virtual returns (address) { address _addressManager = addressManager; if (_addressManager == address(0)) revert RESOLVER_INVALID_MANAGER(); return IAddressManager(_addressManager).getAddress(_chainId, _name); } }
contracts/shared/common/LibNetwork.sol
// SPDX-License-Identifier: MIT pragma solidity ^0.8.24; /// @title LibNetwork library LibNetwork { uint256 internal constant ETHEREUM_MAINNET = 1; uint256 internal constant ETHEREUM_ROPSTEN = 2; uint256 internal constant ETHEREUM_RINKEBY = 4; uint256 internal constant ETHEREUM_GOERLI = 5; uint256 internal constant ETHEREUM_KOVAN = 42; uint256 internal constant ETHEREUM_HOLESKY = 17_000; uint256 internal constant ETHEREUM_SEPOLIA = 11_155_111; uint64 internal constant TAIKO_MAINNET = 167_000; uint64 internal constant TAIKO_HEKLA = 167_009; /// @dev Checks if the chain ID represents an Ethereum testnet. /// @param _chainId The chain ID. /// @return true if the chain ID represents an Ethereum testnet, false otherwise. function isEthereumTestnet(uint256 _chainId) internal pure returns (bool) { return _chainId == LibNetwork.ETHEREUM_ROPSTEN || _chainId == LibNetwork.ETHEREUM_RINKEBY || _chainId == LibNetwork.ETHEREUM_GOERLI || _chainId == LibNetwork.ETHEREUM_KOVAN || _chainId == LibNetwork.ETHEREUM_HOLESKY || _chainId == LibNetwork.ETHEREUM_SEPOLIA; } /// @dev Checks if the chain ID represents an Ethereum testnet or the Etheruem mainnet. /// @param _chainId The chain ID. /// @return true if the chain ID represents an Ethereum testnet or the Etheruem mainnet, false /// otherwise. function isEthereumMainnetOrTestnet(uint256 _chainId) internal pure returns (bool) { return _chainId == LibNetwork.ETHEREUM_MAINNET || isEthereumTestnet(_chainId); } /// @dev Checks if the chain ID represents the Taiko L2 mainnet. /// @param _chainId The chain ID. /// @return true if the chain ID represents the Taiko L2 mainnet. function isTaikoMainnet(uint256 _chainId) internal pure returns (bool) { return _chainId == TAIKO_MAINNET; } /// @dev Checks if the chain ID represents an internal Taiko devnet's base layer. /// @param _chainId The chain ID. /// @return true if the chain ID represents an internal Taiko devnet's base layer, false /// otherwise. function isTaikoDevnet(uint256 _chainId) internal pure returns (bool) { return _chainId >= 32_300 && _chainId <= 32_400; } /// @dev Checks if the chain supports Dencun hardfork. Note that this check doesn't need to be /// exhaustive. /// @param _chainId The chain ID. /// @return true if the chain supports Dencun hardfork, false otherwise. function isDencunSupported(uint256 _chainId) internal pure returns (bool) { return _chainId == LibNetwork.ETHEREUM_MAINNET || _chainId == LibNetwork.ETHEREUM_HOLESKY || _chainId == LibNetwork.ETHEREUM_SEPOLIA || isTaikoDevnet(_chainId); } }
node_modules/@openzeppelin/contracts-upgradeable/interfaces/IERC6372Upgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC6372.sol) pragma solidity ^0.8.0; interface IERC6372Upgradeable { /** * @dev Clock used for flagging checkpoints. Can be overridden to implement timestamp based checkpoints (and voting). */ function clock() external view returns (uint48); /** * @dev Description of the clock */ // solhint-disable-next-line func-name-mixedcase function CLOCK_MODE() external view returns (string memory); }
node_modules/@openzeppelin/contracts/proxy/ERC1967/ERC1967Upgrade.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (proxy/ERC1967/ERC1967Upgrade.sol) pragma solidity ^0.8.2; import "../beacon/IBeacon.sol"; import "../../interfaces/IERC1967.sol"; import "../../interfaces/draft-IERC1822.sol"; import "../../utils/Address.sol"; import "../../utils/StorageSlot.sol"; /** * @dev This abstract contract provides getters and event emitting update functions for * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots. * * _Available since v4.1._ */ abstract contract ERC1967Upgrade is IERC1967 { // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1 bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143; /** * @dev Storage slot with the address of the current implementation. * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is * validated in the constructor. */ bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; /** * @dev Returns the current implementation address. */ function _getImplementation() internal view returns (address) { return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; } /** * @dev Stores a new address in the EIP1967 implementation slot. */ function _setImplementation(address newImplementation) private { require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract"); StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; } /** * @dev Perform implementation upgrade * * Emits an {Upgraded} event. */ function _upgradeTo(address newImplementation) internal { _setImplementation(newImplementation); emit Upgraded(newImplementation); } /** * @dev Perform implementation upgrade with additional setup call. * * Emits an {Upgraded} event. */ function _upgradeToAndCall(address newImplementation, bytes memory data, bool forceCall) internal { _upgradeTo(newImplementation); if (data.length > 0 || forceCall) { Address.functionDelegateCall(newImplementation, data); } } /** * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call. * * Emits an {Upgraded} event. */ function _upgradeToAndCallUUPS(address newImplementation, bytes memory data, bool forceCall) internal { // Upgrades from old implementations will perform a rollback test. This test requires the new // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing // this special case will break upgrade paths from old UUPS implementation to new ones. if (StorageSlot.getBooleanSlot(_ROLLBACK_SLOT).value) { _setImplementation(newImplementation); } else { try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) { require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID"); } catch { revert("ERC1967Upgrade: new implementation is not UUPS"); } _upgradeToAndCall(newImplementation, data, forceCall); } } /** * @dev Storage slot with the admin of the contract. * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is * validated in the constructor. */ bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103; /** * @dev Returns the current admin. */ function _getAdmin() internal view returns (address) { return StorageSlot.getAddressSlot(_ADMIN_SLOT).value; } /** * @dev Stores a new address in the EIP1967 admin slot. */ function _setAdmin(address newAdmin) private { require(newAdmin != address(0), "ERC1967: new admin is the zero address"); StorageSlot.getAddressSlot(_ADMIN_SLOT).value = newAdmin; } /** * @dev Changes the admin of the proxy. * * Emits an {AdminChanged} event. */ function _changeAdmin(address newAdmin) internal { emit AdminChanged(_getAdmin(), newAdmin); _setAdmin(newAdmin); } /** * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy. * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor. */ bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50; /** * @dev Returns the current beacon. */ function _getBeacon() internal view returns (address) { return StorageSlot.getAddressSlot(_BEACON_SLOT).value; } /** * @dev Stores a new beacon in the EIP1967 beacon slot. */ function _setBeacon(address newBeacon) private { require(Address.isContract(newBeacon), "ERC1967: new beacon is not a contract"); require( Address.isContract(IBeacon(newBeacon).implementation()), "ERC1967: beacon implementation is not a contract" ); StorageSlot.getAddressSlot(_BEACON_SLOT).value = newBeacon; } /** * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that). * * Emits a {BeaconUpgraded} event. */ function _upgradeBeaconToAndCall(address newBeacon, bytes memory data, bool forceCall) internal { _setBeacon(newBeacon); emit BeaconUpgraded(newBeacon); if (data.length > 0 || forceCall) { Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data); } } }
node_modules/@openzeppelin/contracts/interfaces/IERC1967.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC1967.sol) pragma solidity ^0.8.0; /** * @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC. * * _Available since v4.8.3._ */ interface IERC1967 { /** * @dev Emitted when the implementation is upgraded. */ event Upgraded(address indexed implementation); /** * @dev Emitted when the admin account has changed. */ event AdminChanged(address previousAdmin, address newAdmin); /** * @dev Emitted when the beacon is changed. */ event BeaconUpgraded(address indexed beacon); }
node_modules/@openzeppelin/contracts-upgradeable/token/ERC20/extensions/IERC20MetadataUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.0; import "../IERC20Upgradeable.sol"; /** * @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); }
node_modules/@openzeppelin/contracts-upgradeable/utils/cryptography/ECDSAUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/ECDSA.sol) pragma solidity ^0.8.0; import "../StringsUpgradeable.sol"; /** * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations. * * These functions can be used to verify that a message was signed by the holder * of the private keys of a given address. */ library ECDSAUpgradeable { enum RecoverError { NoError, InvalidSignature, InvalidSignatureLength, InvalidSignatureS, InvalidSignatureV // Deprecated in v4.8 } function _throwError(RecoverError error) private pure { if (error == RecoverError.NoError) { return; // no error: do nothing } else if (error == RecoverError.InvalidSignature) { revert("ECDSA: invalid signature"); } else if (error == RecoverError.InvalidSignatureLength) { revert("ECDSA: invalid signature length"); } else if (error == RecoverError.InvalidSignatureS) { revert("ECDSA: invalid signature 's' value"); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature` or error string. This address can then be used for verification purposes. * * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {toEthSignedMessageHash} on it. * * Documentation for signature generation: * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js] * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers] * * _Available since v4.3._ */ function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) { if (signature.length == 65) { bytes32 r; bytes32 s; uint8 v; // ecrecover takes the signature parameters, and the only way to get them // currently is to use assembly. /// @solidity memory-safe-assembly assembly { r := mload(add(signature, 0x20)) s := mload(add(signature, 0x40)) v := byte(0, mload(add(signature, 0x60))) } return tryRecover(hash, v, r, s); } else { return (address(0), RecoverError.InvalidSignatureLength); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature`. This address can then be used for verification purposes. * * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {toEthSignedMessageHash} on it. */ function recover(bytes32 hash, bytes memory signature) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, signature); _throwError(error); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately. * * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures] * * _Available since v4.3._ */ function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError) { bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff); uint8 v = uint8((uint256(vs) >> 255) + 27); return tryRecover(hash, v, r, s); } /** * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately. * * _Available since v4.2._ */ function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, r, vs); _throwError(error); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `v`, * `r` and `s` signature fields separately. * * _Available since v4.3._ */ function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address, RecoverError) { // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most // signatures from current libraries generate a unique signature with an s-value in the lower half order. // // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept // these malleable signatures as well. if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) { return (address(0), RecoverError.InvalidSignatureS); } // If the signature is valid (and not malleable), return the signer address address signer = ecrecover(hash, v, r, s); if (signer == address(0)) { return (address(0), RecoverError.InvalidSignature); } return (signer, RecoverError.NoError); } /** * @dev Overload of {ECDSA-recover} that receives the `v`, * `r` and `s` signature fields separately. */ function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, v, r, s); _throwError(error); return recovered; } /** * @dev Returns an Ethereum Signed Message, created from a `hash`. This * produces hash corresponding to the one signed with the * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] * JSON-RPC method as part of EIP-191. * * See {recover}. */ function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 message) { // 32 is the length in bytes of hash, // enforced by the type signature above /// @solidity memory-safe-assembly assembly { mstore(0x00, "\x19Ethereum Signed Message:\n32") mstore(0x1c, hash) message := keccak256(0x00, 0x3c) } } /** * @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", StringsUpgradeable.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 data) { /// @solidity memory-safe-assembly assembly { let ptr := mload(0x40) mstore(ptr, "\x19\x01") mstore(add(ptr, 0x02), domainSeparator) mstore(add(ptr, 0x22), structHash) data := keccak256(ptr, 0x42) } } /** * @dev Returns an Ethereum Signed Data with intended validator, created from a * `validator` and `data` according to the version 0 of EIP-191. * * See {recover}. */ function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) { return keccak256(abi.encodePacked("\x19\x00", validator, data)); } }
node_modules/@openzeppelin/contracts-upgradeable/utils/CountersUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Counters.sol) pragma solidity ^0.8.0; /** * @title Counters * @author Matt Condon (@shrugs) * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number * of elements in a mapping, issuing ERC721 ids, or counting request ids. * * Include with `using Counters for Counters.Counter;` */ library CountersUpgradeable { struct Counter { // This variable should never be directly accessed by users of the library: interactions must be restricted to // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add // this feature: see https://github.com/ethereum/solidity/issues/4637 uint256 _value; // default: 0 } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { unchecked { counter._value += 1; } } function decrement(Counter storage counter) internal { uint256 value = counter._value; require(value > 0, "Counter: decrement overflow"); unchecked { counter._value = value - 1; } } function reset(Counter storage counter) internal { counter._value = 0; } }
contracts/shared/common/IAddressManager.sol
// SPDX-License-Identifier: MIT pragma solidity ^0.8.24; /// @title IAddressManager /// @notice Manages a mapping of (chainId, name) pairs to Ethereum addresses. /// @custom:security-contact security@taiko.xyz interface IAddressManager { /// @notice Gets the address mapped to a specific chainId-name pair. /// @dev Note that in production, this method shall be a pure function /// without any storage access. /// @param _chainId The chainId for which the address needs to be fetched. /// @param _name The name for which the address needs to be fetched. /// @return Address associated with the chainId-name pair. function getAddress(uint64 _chainId, bytes32 _name) external view returns (address); }
node_modules/@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol) pragma solidity ^0.8.0; import {Initializable} from "../proxy/utils/Initializable.sol"; /** * @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; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; } /** * @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; }
node_modules/@openzeppelin/contracts-upgradeable/interfaces/IERC5805Upgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC5805.sol) pragma solidity ^0.8.0; import "../governance/utils/IVotesUpgradeable.sol"; import "./IERC6372Upgradeable.sol"; interface IERC5805Upgradeable is IERC6372Upgradeable, IVotesUpgradeable {}
node_modules/@openzeppelin/contracts-upgradeable/governance/utils/IVotesUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (governance/utils/IVotes.sol) pragma solidity ^0.8.0; /** * @dev Common interface for {ERC20Votes}, {ERC721Votes}, and other {Votes}-enabled contracts. * * _Available since v4.5._ */ interface IVotesUpgradeable { /** * @dev Emitted when an account changes their delegate. */ event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate); /** * @dev Emitted when a token transfer or delegate change results in changes to a delegate's number of votes. */ event DelegateVotesChanged(address indexed delegate, uint256 previousBalance, uint256 newBalance); /** * @dev Returns the current amount of votes that `account` has. */ function getVotes(address account) external view returns (uint256); /** * @dev Returns the amount of votes that `account` had at a specific moment in the past. If the `clock()` is * configured to use block numbers, this will return the value at the end of the corresponding block. */ function getPastVotes(address account, uint256 timepoint) external view returns (uint256); /** * @dev Returns the total supply of votes available at a specific moment in the past. If the `clock()` is * configured to use block numbers, this will return the value at the end of the corresponding block. * * NOTE: This value is the sum of all available votes, which is not necessarily the sum of all delegated votes. * Votes that have not been delegated are still part of total supply, even though they would not participate in a * vote. */ function getPastTotalSupply(uint256 timepoint) external view returns (uint256); /** * @dev Returns the delegate that `account` has chosen. */ function delegates(address account) external view returns (address); /** * @dev Delegates votes from the sender to `delegatee`. */ function delegate(address delegatee) external; /** * @dev Delegates votes from signer to `delegatee`. */ function delegateBySig(address delegatee, uint256 nonce, uint256 expiry, uint8 v, bytes32 r, bytes32 s) external; }
node_modules/@openzeppelin/contracts-upgradeable/token/ERC20/extensions/IERC20PermitUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.4) (token/ERC20/extensions/IERC20Permit.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. * * ==== Security Considerations * * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be * considered as an intention to spend the allowance in any specific way. The second is that because permits have * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be * generally recommended is: * * ```solidity * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public { * try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {} * doThing(..., value); * } * * function doThing(..., uint256 value) public { * token.safeTransferFrom(msg.sender, address(this), value); * ... * } * ``` * * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also * {SafeERC20-safeTransferFrom}). * * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so * contracts should have entry points that don't rely on permit. */ interface IERC20PermitUpgradeable { /** * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens, * given ``owner``'s signed approval. * * IMPORTANT: The same issues {IERC20-approve} has related to transaction * ordering also apply here. * * Emits an {Approval} event. * * Requirements: * * - `spender` cannot be the zero address. * - `deadline` must be a timestamp in the future. * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` * over the EIP712-formatted function arguments. * - the signature must use ``owner``'s current nonce (see {nonces}). * * For more information on the signature format, see the * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP * section]. * * CAUTION: See Security Considerations above. */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; /** * @dev Returns the current nonce for `owner`. This value must be * included whenever a signature is generated for {permit}. * * Every successful call to {permit} increases ``owner``'s nonce by one. This * prevents a signature from being used multiple times. */ function nonces(address owner) external view returns (uint256); /** * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32); }
node_modules/@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface 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); }
contracts/shared/common/IAddressResolver.sol
// SPDX-License-Identifier: MIT pragma solidity ^0.8.24; /// @title IAddressResolver /// @notice This contract acts as a bridge for name-to-address resolution. /// It delegates the resolution to the AddressManager. By separating the logic, /// we can maintain flexibility in address management without affecting the /// resolving process. /// @dev Note that the address manager should be changed using upgradability, there /// is no setAddressManager() function to guarantee atomicity across all /// contracts that are resolvers. /// @custom:security-contact security@taiko.xyz interface IAddressResolver { /// @notice Resolves a name to its address deployed on this chain. /// @param _name Name whose address is to be resolved. /// @param _allowZeroAddress If set to true, does not throw if the resolved /// address is `address(0)`. /// @return Address associated with the given name. function resolve(bytes32 _name, bool _allowZeroAddress) external view returns (address); /// @notice Resolves a name to its address deployed on a specified chain. /// @param _chainId The chainId of interest. /// @param _name Name whose address is to be resolved. /// @param _allowZeroAddress If set to true, does not throw if the resolved /// address is `address(0)`. /// @return Address associated with the given name on the specified /// chain. function resolve( uint64 _chainId, bytes32 _name, bool _allowZeroAddress ) external view returns (address); }
node_modules/@openzeppelin/contracts/utils/StorageSlot.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/StorageSlot.sol) // This file was procedurally generated from scripts/generate/templates/StorageSlot.js. pragma solidity ^0.8.0; /** * @dev Library for reading and writing primitive types to specific storage slots. * * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts. * This library helps with reading and writing to such slots without the need for inline assembly. * * The functions in this library return Slot structs that contain a `value` member that can be used to read or write. * * Example usage to set ERC1967 implementation slot: * ```solidity * contract ERC1967 { * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; * * function _getImplementation() internal view returns (address) { * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; * } * * function _setImplementation(address newImplementation) internal { * require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract"); * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; * } * } * ``` * * _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._ * _Available since v4.9 for `string`, `bytes`._ */ library StorageSlot { struct AddressSlot { address value; } struct BooleanSlot { bool value; } struct Bytes32Slot { bytes32 value; } struct Uint256Slot { uint256 value; } struct StringSlot { string value; } struct BytesSlot { bytes value; } /** * @dev Returns an `AddressSlot` with member `value` located at `slot`. */ function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `BooleanSlot` with member `value` located at `slot`. */ function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Bytes32Slot` with member `value` located at `slot`. */ function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Uint256Slot` with member `value` located at `slot`. */ function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `StringSlot` with member `value` located at `slot`. */ function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `StringSlot` representation of the string storage pointer `store`. */ function getStringSlot(string storage store) internal pure returns (StringSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := store.slot } } /** * @dev Returns an `BytesSlot` with member `value` located at `slot`. */ function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`. */ function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := store.slot } } }
node_modules/@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/ContextUpgradeable.sol"; import {Initializable} from "../proxy/utils/Initializable.sol"; /** * @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 Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby disabling 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; }
node_modules/@openzeppelin/contracts/interfaces/draft-IERC1822.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol) pragma solidity ^0.8.0; /** * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified * proxy whose upgrades are fully controlled by the current implementation. */ interface IERC1822Proxiable { /** * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation * address. * * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this * function revert if invoked through a proxy. */ function proxiableUUID() external view returns (bytes32); }
node_modules/@openzeppelin/contracts/utils/Address.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * * Furthermore, `isContract` will also return true if the target contract within * the same transaction is already scheduled for destruction by `SELFDESTRUCT`, * which only has an effect at the end of a transaction. * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
node_modules/@openzeppelin/contracts-upgradeable/interfaces/IERC5267Upgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC5267.sol) pragma solidity ^0.8.0; interface IERC5267Upgradeable { /** * @dev MAY be emitted to signal that the domain could have changed. */ event EIP712DomainChanged(); /** * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712 * signature. */ function eip712Domain() external view returns ( bytes1 fields, string memory name, string memory version, uint256 chainId, address verifyingContract, bytes32 salt, uint256[] memory extensions ); }
node_modules/@openzeppelin/contracts-upgradeable/utils/math/MathUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library MathUpgradeable { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { // Solidity will revert if denominator == 0, unlike the div opcode on its own. // The surrounding unchecked block does not change this fact. // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic. return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1, "Math: mulDiv overflow"); /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. // See https://cs.stackexchange.com/q/138556/92363. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works // in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (rounding == Rounding.Up && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2, rounded down, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10, rounded down, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10 ** 64) { value /= 10 ** 64; result += 64; } if (value >= 10 ** 32) { value /= 10 ** 32; result += 32; } if (value >= 10 ** 16) { value /= 10 ** 16; result += 16; } if (value >= 10 ** 8) { value /= 10 ** 8; result += 8; } if (value >= 10 ** 4) { value /= 10 ** 4; result += 4; } if (value >= 10 ** 2) { value /= 10 ** 2; result += 2; } if (value >= 10 ** 1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0); } } /** * @dev Return the log in base 256, rounded down, of a positive value. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 256, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0); } } }
node_modules/@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library 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 * * Furthermore, `isContract` will also return true if the target contract within * the same transaction is already scheduled for destruction by `SELFDESTRUCT`, * which only has an effect at the end of a transaction. * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
contracts/shared/common/LibAddress.sol
// SPDX-License-Identifier: MIT pragma solidity ^0.8.24; import "@openzeppelin/contracts/utils/introspection/IERC165.sol"; /// @title LibAddress /// @dev Provides utilities for address-related operations. /// @custom:security-contact security@taiko.xyz library LibAddress { error ETH_TRANSFER_FAILED(); /// @dev Sends Ether to the specified address. This method will not revert even if sending ether /// fails. /// This function is inspired by /// https://github.com/nomad-xyz/ExcessivelySafeCall/blob/main/src/ExcessivelySafeCall.sol /// @param _to The recipient address. /// @param _amount The amount of Ether to send in wei. /// @param _gasLimit The max amount gas to pay for this transaction. /// @return success_ true if the call is successful, false otherwise. function sendEther( address _to, uint256 _amount, uint256 _gasLimit, bytes memory _calldata ) internal returns (bool success_) { // Check for zero-address transactions if (_to == address(0)) revert ETH_TRANSFER_FAILED(); // dispatch message to recipient // by assembly calling "handle" function // we call via assembly to avoid memcopying a very large returndata // returned by a malicious contract assembly { success_ := call( _gasLimit, // gas _to, // recipient _amount, // ether value add(_calldata, 0x20), // inloc mload(_calldata), // inlen 0, // outloc 0 // outlen ) } } /// @dev Sends Ether to the specified address. This method will revert if sending ether fails. /// @param _to The recipient address. /// @param _amount The amount of Ether to send in wei. /// @param _gasLimit The max amount gas to pay for this transaction. function sendEtherAndVerify(address _to, uint256 _amount, uint256 _gasLimit) internal { if (_amount == 0) return; if (!sendEther(_to, _amount, _gasLimit, "")) { revert ETH_TRANSFER_FAILED(); } } /// @dev Sends Ether to the specified address. This method will revert if sending ether fails. /// @param _to The recipient address. /// @param _amount The amount of Ether to send in wei. function sendEtherAndVerify(address _to, uint256 _amount) internal { sendEtherAndVerify(_to, _amount, gasleft()); } function supportsInterface( address _addr, bytes4 _interfaceId ) internal view returns (bool result_) { (bool success, bytes memory data) = _addr.staticcall(abi.encodeCall(IERC165.supportsInterface, (_interfaceId))); if (success && data.length == 32) { result_ = abi.decode(data, (bool)); } } }
node_modules/@openzeppelin/contracts-upgradeable/utils/math/SignedMathUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol) pragma solidity ^0.8.0; /** * @dev Standard signed math utilities missing in the Solidity language. */ library SignedMathUpgradeable { /** * @dev Returns the largest of two signed numbers. */ function max(int256 a, int256 b) internal pure returns (int256) { return a > b ? a : b; } /** * @dev Returns the smallest of two signed numbers. */ function min(int256 a, int256 b) internal pure returns (int256) { return a < b ? a : b; } /** * @dev Returns the average of two signed numbers without overflow. * The result is rounded towards zero. */ function average(int256 a, int256 b) internal pure returns (int256) { // Formula from the book "Hacker's Delight" int256 x = (a & b) + ((a ^ b) >> 1); return x + (int256(uint256(x) >> 255) & (a ^ b)); } /** * @dev Returns the absolute unsigned value of a signed value. */ function abs(int256 n) internal pure returns (uint256) { unchecked { // must be unchecked in order to support `n = type(int256).min` return uint256(n >= 0 ? n : -n); } } }
node_modules/@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol) pragma solidity ^0.8.0; import "./IERC20Upgradeable.sol"; import "./extensions/IERC20MetadataUpgradeable.sol"; import "../../utils/ContextUpgradeable.sol"; import {Initializable} from "../../proxy/utils/Initializable.sol"; /** * @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.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * The default value of {decimals} is 18. To change this, you should override * this function so it returns a different value. * * 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}. * * 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 default value returned by this function, unless * it's 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 `from` to `to`. * * 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; // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by // decrementing then incrementing. _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; unchecked { // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above. _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; // Overflow not possible: amount <= accountBalance <= totalSupply. _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; }
contracts/shared/signal/ISignalService.sol
// SPDX-License-Identifier: MIT pragma solidity ^0.8.24; /// @title ISignalService /// @notice The SignalService contract serves as a secure cross-chain message /// passing system. It defines methods for sending and verifying signals with /// merkle proofs. The trust assumption is that the target chain has secure /// access to the merkle root (such as Taiko injects it in the anchor /// transaction). With this, verifying a signal is reduced to simply verifying /// a merkle proof. /// @custom:security-contact security@taiko.xyz interface ISignalService { enum CacheOption { CACHE_NOTHING, CACHE_SIGNAL_ROOT, CACHE_STATE_ROOT, CACHE_BOTH } struct HopProof { /// @notice This hop's destination chain ID. If there is a next hop, this ID is the next /// hop's source chain ID. uint64 chainId; /// @notice The ID of a source chain block whose state root has been synced to the hop's /// destination chain. /// Note that this block ID must be greater than or equal to the block ID where the signal /// was sent on the source chain. uint64 blockId; /// @notice The state root or signal root of the source chain at the above blockId. This /// value has been synced to the destination chain. /// @dev To get both the blockId and the rootHash, apps should subscribe to the /// ChainDataSynced event or query `topBlockId` first using the source chain's ID and /// LibStrings.H_STATE_ROOT to get the most recent block ID synced, then call /// `getSyncedChainData` to read the synchronized data. bytes32 rootHash; /// @notice Options to cache either the state roots or signal roots of middle-hops to the /// current chain. CacheOption cacheOption; /// @notice The signal service's account proof. If this value is empty, then `rootHash` will /// be used as the signal root, otherwise, `rootHash` will be used as the state root. bytes[] accountProof; /// @notice The signal service's storage proof. bytes[] storageProof; } /// @notice Emitted when a remote chain's state root or signal root is /// synced locally as a signal. /// @param chainId The remote chainId. /// @param blockId The chain data's corresponding blockId. /// @param kind A value to mark the data type. /// @param data The remote data. /// @param signal The signal for this chain data. event ChainDataSynced( uint64 indexed chainId, uint64 indexed blockId, bytes32 indexed kind, bytes32 data, bytes32 signal ); /// @notice Emitted when a signal is sent. /// @param app The address that initiated the signal. /// @param signal The signal (message) that was sent. /// @param slot The location in storage where this signal is stored. /// @param value The value of the signal. event SignalSent(address app, bytes32 signal, bytes32 slot, bytes32 value); /// @notice Emitted when an address is authorized or deauthorized. /// @param addr The address to be authorized or deauthorized. /// @param authorized True if authorized, false otherwise. event Authorized(address indexed addr, bool authorized); /// @notice Send a signal (message) by setting the storage slot to the same value as the signal /// itself. /// @param _signal The signal (message) to send. /// @return slot_ The location in storage where this signal is stored. function sendSignal(bytes32 _signal) external returns (bytes32 slot_); /// @notice Sync a data from a remote chain locally as a signal. The signal is calculated /// uniquely from chainId, kind, and data. /// @param _chainId The remote chainId. /// @param _kind A value to mark the data type. /// @param _blockId The chain data's corresponding blockId /// @param _chainData The remote data. /// @return signal_ The signal for this chain data. function syncChainData( uint64 _chainId, bytes32 _kind, uint64 _blockId, bytes32 _chainData ) external returns (bytes32 signal_); /// @notice Verifies if a signal has been received on the target chain. /// @param _chainId The identifier for the source chain from which the /// signal originated. /// @param _app The address that initiated the signal. /// @param _signal The signal (message) to send. /// @param _proof Merkle proof that the signal was persisted on the /// source chain. /// @return numCacheOps_ The number of newly cached items. function proveSignalReceived( uint64 _chainId, address _app, bytes32 _signal, bytes calldata _proof ) external returns (uint256 numCacheOps_); /// @notice Verifies if a signal has been received on the target chain. /// This is the "readonly" version of proveSignalReceived. /// @param _chainId The identifier for the source chain from which the /// signal originated. /// @param _app The address that initiated the signal. /// @param _signal The signal (message) to send. /// @param _proof Merkle proof that the signal was persisted on the /// source chain. function verifySignalReceived( uint64 _chainId, address _app, bytes32 _signal, bytes calldata _proof ) external view; /// @notice Verifies if a particular signal has already been sent. /// @param _app The address that initiated the signal. /// @param _signal The signal (message) that was sent. /// @return true if the signal has been sent, otherwise false. function isSignalSent(address _app, bytes32 _signal) external view returns (bool); /// @notice Checks if a chain data has been synced. /// @param _chainId The remote chainId. /// @param _kind A value to mark the data type. /// @param _blockId The chain data's corresponding blockId /// @param _chainData The remote data. /// @return true if the data has been synced, otherwise false. function isChainDataSynced( uint64 _chainId, bytes32 _kind, uint64 _blockId, bytes32 _chainData ) external view returns (bool); /// @notice Returns the given block's chain data. /// @param _chainId Identifier of the chainId. /// @param _kind A value to mark the data type. /// @param _blockId The chain data's corresponding block id. If this value is 0, use the top /// block id. /// @return blockId_ The actual block id. /// @return chainData_ The synced chain data. function getSyncedChainData( uint64 _chainId, bytes32 _kind, uint64 _blockId ) external view returns (uint64 blockId_, bytes32 chainData_); /// @notice Returns the data to be used for caching slot generation. /// @param _chainId Identifier of the chainId. /// @param _kind A value to mark the data type. /// @param _blockId The chain data's corresponding block id. If this value is 0, use the top /// block id. /// @return signal_ The signal used for caching slot creation. function signalForChainData( uint64 _chainId, bytes32 _kind, uint64 _blockId ) external pure returns (bytes32 signal_); }
contracts/shared/common/EssentialContract.sol
// SPDX-License-Identifier: MIT pragma solidity ^0.8.24; import "@openzeppelin/contracts/proxy/utils/UUPSUpgradeable.sol"; import "@openzeppelin/contracts-upgradeable/access/Ownable2StepUpgradeable.sol"; import "./AddressResolver.sol"; /// @title EssentialContract /// @custom:security-contact security@taiko.xyz abstract contract EssentialContract is UUPSUpgradeable, Ownable2StepUpgradeable, AddressResolver { uint8 private constant _FALSE = 1; uint8 private constant _TRUE = 2; /// @dev Slot 1. uint8 private __reentry; uint8 private __paused; uint64 public lastUnpausedAt; uint256[49] private __gap; /// @notice Emitted when the contract is paused. /// @param account The account that paused the contract. event Paused(address account); /// @notice Emitted when the contract is unpaused. /// @param account The account that unpaused the contract. event Unpaused(address account); error INVALID_PAUSE_STATUS(); error FUNC_NOT_IMPLEMENTED(); error REENTRANT_CALL(); error ZERO_ADDRESS(); error ZERO_VALUE(); /// @dev Modifier that ensures the caller is the owner or resolved address of a given name. /// @param _name The name to check against. modifier onlyFromOwnerOrNamed(bytes32 _name) { if (msg.sender != owner() && msg.sender != resolve(_name, true)) revert RESOLVER_DENIED(); _; } modifier notImplemented() { revert FUNC_NOT_IMPLEMENTED(); _; } modifier nonReentrant() { if (_loadReentryLock() == _TRUE) revert REENTRANT_CALL(); _storeReentryLock(_TRUE); _; _storeReentryLock(_FALSE); } modifier whenPaused() { if (!paused()) revert INVALID_PAUSE_STATUS(); _; } modifier whenNotPaused() { if (paused()) revert INVALID_PAUSE_STATUS(); _; } modifier nonZeroAddr(address _addr) { if (_addr == address(0)) revert ZERO_ADDRESS(); _; } modifier nonZeroValue(uint256 _value) { if (_value == 0) revert ZERO_VALUE(); _; } /// @custom:oz-upgrades-unsafe-allow constructor constructor() { _disableInitializers(); } /// @notice Pauses the contract. function pause() public virtual { _pause(); // We call the authorize function here to avoid: // Warning (5740): Unreachable code. _authorizePause(msg.sender, true); } /// @notice Unpauses the contract. function unpause() public virtual { _unpause(); // We call the authorize function here to avoid: // Warning (5740): Unreachable code. _authorizePause(msg.sender, false); } function impl() public view returns (address) { return _getImplementation(); } /// @notice Returns true if the contract is paused, and false otherwise. /// @return true if paused, false otherwise. function paused() public view returns (bool) { return __paused == _TRUE; } function inNonReentrant() public view returns (bool) { return _loadReentryLock() == _TRUE; } /// @notice Initializes the contract. /// @param _owner The owner of this contract. msg.sender will be used if this value is zero. /// @param _addressManager The address of the {AddressManager} contract. function __Essential_init( address _owner, address _addressManager ) internal nonZeroAddr(_addressManager) { __Essential_init(_owner); __AddressResolver_init(_addressManager); } function __Essential_init(address _owner) internal virtual onlyInitializing { __Context_init(); _transferOwnership(_owner == address(0) ? msg.sender : _owner); __paused = _FALSE; } function _pause() internal whenNotPaused { __paused = _TRUE; emit Paused(msg.sender); } function _unpause() internal whenPaused { __paused = _FALSE; lastUnpausedAt = uint64(block.timestamp); emit Unpaused(msg.sender); } function _authorizeUpgrade(address) internal virtual override onlyOwner { } function _authorizePause(address, bool) internal virtual onlyOwner { } // Stores the reentry lock function _storeReentryLock(uint8 _reentry) internal virtual { __reentry = _reentry; } // Loads the reentry lock function _loadReentryLock() internal view virtual returns (uint8 reentry_) { reentry_ = __reentry; } }
node_modules/@openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol) pragma solidity ^0.8.0; import "./math/MathUpgradeable.sol"; import "./math/SignedMathUpgradeable.sol"; /** * @dev String operations. */ library StringsUpgradeable { bytes16 private constant _SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = MathUpgradeable.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), _SYMBOLS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `int256` to its ASCII `string` decimal representation. */ function toString(int256 value) internal pure returns (string memory) { return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMathUpgradeable.abs(value)))); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, MathUpgradeable.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } /** * @dev Returns true if the two strings are equal. */ function equal(string memory a, string memory b) internal pure returns (bool) { return keccak256(bytes(a)) == keccak256(bytes(b)); } }
contracts/shared/common/LibStrings.sol
// SPDX-License-Identifier: MIT pragma solidity ^0.8.24; /// @title LibStrings /// @custom:security-contact security@taiko.xyz library LibStrings { bytes32 internal constant B_AUTOMATA_DCAP_ATTESTATION = bytes32("automata_dcap_attestation"); bytes32 internal constant B_BRIDGE = bytes32("bridge"); bytes32 internal constant B_BRIDGE_WATCHDOG = bytes32("bridge_watchdog"); bytes32 internal constant B_BRIDGED_ERC1155 = bytes32("bridged_erc1155"); bytes32 internal constant B_BRIDGED_ERC20 = bytes32("bridged_erc20"); bytes32 internal constant B_BRIDGED_ERC721 = bytes32("bridged_erc721"); bytes32 internal constant B_CHAIN_WATCHDOG = bytes32("chain_watchdog"); bytes32 internal constant B_ERC1155_VAULT = bytes32("erc1155_vault"); bytes32 internal constant B_ERC20_VAULT = bytes32("erc20_vault"); bytes32 internal constant B_ERC721_VAULT = bytes32("erc721_vault"); bytes32 internal constant B_PRECONF_REGISTRY = bytes32("preconf_registry"); bytes32 internal constant B_PROVER_ASSIGNMENT = bytes32("PROVER_ASSIGNMENT"); bytes32 internal constant B_PROVER_SET = bytes32("prover_set"); bytes32 internal constant B_QUOTA_MANAGER = bytes32("quota_manager"); bytes32 internal constant B_SGX_WATCHDOG = bytes32("sgx_watchdog"); bytes32 internal constant B_SIGNAL_SERVICE = bytes32("signal_service"); bytes32 internal constant B_SP1_REMOTE_VERIFIER = bytes32("sp1_remote_verifier"); bytes32 internal constant B_TAIKO = bytes32("taiko"); bytes32 internal constant B_TAIKO_TOKEN = bytes32("taiko_token"); bytes32 internal constant B_TIER_GUARDIAN = bytes32("tier_guardian"); bytes32 internal constant B_TIER_GUARDIAN_MINORITY = bytes32("tier_guardian_minority"); bytes32 internal constant B_TIER_ROUTER = bytes32("tier_router"); bytes32 internal constant B_TIER_SGX = bytes32("tier_sgx"); bytes32 internal constant B_TIER_TDX = bytes32("tier_tdx"); bytes32 internal constant B_TIER_TEE_ANY = bytes32("tier_tee_any"); bytes32 internal constant B_TIER_ZKVM_RISC0 = bytes32("tier_zkvm_risc0"); bytes32 internal constant B_TIER_ZKVM_SP1 = bytes32("tier_zkvm_sp1"); bytes32 internal constant B_TIER_ZKVM_ANY = bytes32("tier_zkvm_any"); bytes32 internal constant B_TIER_ZKVM_AND_TEE = bytes32("tier_zkvm_and_tee"); bytes32 internal constant B_RISCZERO_GROTH16_VERIFIER = bytes32("risc0_groth16_verifier"); bytes32 internal constant B_WITHDRAWER = bytes32("withdrawer"); bytes32 internal constant H_RETURN_LIVENESS_BOND = keccak256("RETURN_LIVENESS_BOND"); bytes32 internal constant H_SIGNAL_ROOT = keccak256("SIGNAL_ROOT"); bytes32 internal constant H_STATE_ROOT = keccak256("STATE_ROOT"); }
Compiler Settings
{"viaIR":false,"remappings":["@openzeppelin/contracts-upgradeable/=node_modules/@openzeppelin/contracts-upgradeable/","openzeppelin/contracts-upgradeable/=node_modules/@openzeppelin/contracts-upgradeable/","@openzeppelin/contracts/=node_modules/@openzeppelin/contracts/","openzeppelin/contracts/=node_modules/@openzeppelin/contracts/","@risc0/contracts/=node_modules/risc0-ethereum/contracts/src/","@solady/=node_modules/solady/","@optimism/=node_modules/optimism/","@sp1-contracts/=node_modules/sp1-contracts/contracts/","forge-std/=node_modules/forge-std/","ds-test/=node_modules/ds-test/src/","@p256-verifier/contracts/=node_modules/p256-verifier/src/","src/=contracts/","test/=test/","script/=script/","optimism/=node_modules/optimism/","p256-verifier/=node_modules/p256-verifier/","risc0-ethereum/=node_modules/risc0-ethereum/","solady/=node_modules/solady/","sp1-contracts/=node_modules/sp1-contracts/"],"outputSelection":{"*":{"*":["abi","evm.bytecode","evm.deployedBytecode","evm.methodIdentifiers","metadata"]}},"optimizer":{"runs":200,"enabled":true},"metadata":{"useLiteralContent":false,"bytecodeHash":"ipfs","appendCBOR":true},"libraries":{},"evmVersion":"shanghai"}
Contract ABI
[{"type":"error","name":"B_INSUFFICIENT_GAS","inputs":[]},{"type":"error","name":"B_INVALID_CHAINID","inputs":[]},{"type":"error","name":"B_INVALID_CONTEXT","inputs":[]},{"type":"error","name":"B_INVALID_FEE","inputs":[]},{"type":"error","name":"B_INVALID_GAS_LIMIT","inputs":[]},{"type":"error","name":"B_INVALID_STATUS","inputs":[]},{"type":"error","name":"B_INVALID_VALUE","inputs":[]},{"type":"error","name":"B_MESSAGE_NOT_SENT","inputs":[]},{"type":"error","name":"B_OUT_OF_ETH_QUOTA","inputs":[]},{"type":"error","name":"B_PERMISSION_DENIED","inputs":[]},{"type":"error","name":"B_PROOF_TOO_LARGE","inputs":[]},{"type":"error","name":"B_RETRY_FAILED","inputs":[]},{"type":"error","name":"B_SIGNAL_NOT_RECEIVED","inputs":[]},{"type":"error","name":"ETH_TRANSFER_FAILED","inputs":[]},{"type":"error","name":"FUNC_NOT_IMPLEMENTED","inputs":[]},{"type":"error","name":"INVALID_PAUSE_STATUS","inputs":[]},{"type":"error","name":"REENTRANT_CALL","inputs":[]},{"type":"error","name":"RESOLVER_DENIED","inputs":[]},{"type":"error","name":"RESOLVER_INVALID_MANAGER","inputs":[]},{"type":"error","name":"RESOLVER_UNEXPECTED_CHAINID","inputs":[]},{"type":"error","name":"RESOLVER_ZERO_ADDR","inputs":[{"type":"uint64","name":"chainId","internalType":"uint64"},{"type":"bytes32","name":"name","internalType":"bytes32"}]},{"type":"error","name":"ZERO_ADDRESS","inputs":[]},{"type":"error","name":"ZERO_VALUE","inputs":[]},{"type":"event","name":"AdminChanged","inputs":[{"type":"address","name":"previousAdmin","internalType":"address","indexed":false},{"type":"address","name":"newAdmin","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"BeaconUpgraded","inputs":[{"type":"address","name":"beacon","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"Initialized","inputs":[{"type":"uint8","name":"version","internalType":"uint8","indexed":false}],"anonymous":false},{"type":"event","name":"MessageProcessed","inputs":[{"type":"bytes32","name":"msgHash","internalType":"bytes32","indexed":true},{"type":"tuple","name":"message","internalType":"struct IBridge.Message","indexed":false,"components":[{"type":"uint64","name":"id","internalType":"uint64"},{"type":"uint64","name":"fee","internalType":"uint64"},{"type":"uint32","name":"gasLimit","internalType":"uint32"},{"type":"address","name":"from","internalType":"address"},{"type":"uint64","name":"srcChainId","internalType":"uint64"},{"type":"address","name":"srcOwner","internalType":"address"},{"type":"uint64","name":"destChainId","internalType":"uint64"},{"type":"address","name":"destOwner","internalType":"address"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"},{"type":"bytes","name":"data","internalType":"bytes"}]},{"type":"tuple","name":"stats","internalType":"struct Bridge.ProcessingStats","indexed":false,"components":[{"type":"uint32","name":"gasUsedInFeeCalc","internalType":"uint32"},{"type":"uint32","name":"proofSize","internalType":"uint32"},{"type":"uint32","name":"numCacheOps","internalType":"uint32"},{"type":"bool","name":"processedByRelayer","internalType":"bool"}]}],"anonymous":false},{"type":"event","name":"MessageSent","inputs":[{"type":"bytes32","name":"msgHash","internalType":"bytes32","indexed":true},{"type":"tuple","name":"message","internalType":"struct IBridge.Message","indexed":false,"components":[{"type":"uint64","name":"id","internalType":"uint64"},{"type":"uint64","name":"fee","internalType":"uint64"},{"type":"uint32","name":"gasLimit","internalType":"uint32"},{"type":"address","name":"from","internalType":"address"},{"type":"uint64","name":"srcChainId","internalType":"uint64"},{"type":"address","name":"srcOwner","internalType":"address"},{"type":"uint64","name":"destChainId","internalType":"uint64"},{"type":"address","name":"destOwner","internalType":"address"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"},{"type":"bytes","name":"data","internalType":"bytes"}]}],"anonymous":false},{"type":"event","name":"MessageStatusChanged","inputs":[{"type":"bytes32","name":"msgHash","internalType":"bytes32","indexed":true},{"type":"uint8","name":"status","internalType":"enum IBridge.Status","indexed":false}],"anonymous":false},{"type":"event","name":"OwnershipTransferStarted","inputs":[{"type":"address","name":"previousOwner","internalType":"address","indexed":true},{"type":"address","name":"newOwner","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"OwnershipTransferred","inputs":[{"type":"address","name":"previousOwner","internalType":"address","indexed":true},{"type":"address","name":"newOwner","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"Paused","inputs":[{"type":"address","name":"account","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"Unpaused","inputs":[{"type":"address","name":"account","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"Upgraded","inputs":[{"type":"address","name":"implementation","internalType":"address","indexed":true}],"anonymous":false},{"type":"function","stateMutability":"view","outputs":[{"type":"uint32","name":"","internalType":"uint32"}],"name":"GAS_OVERHEAD","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint32","name":"","internalType":"uint32"}],"name":"GAS_RESERVE","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"RELAYER_MAX_PROOF_BYTES","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"acceptOwnership","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"addressManager","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"tuple","name":"ctx_","internalType":"struct IBridge.Context","components":[{"type":"bytes32","name":"msgHash","internalType":"bytes32"},{"type":"address","name":"from","internalType":"address"},{"type":"uint64","name":"srcChainId","internalType":"uint64"}]}],"name":"context","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"failMessage","inputs":[{"type":"tuple","name":"_message","internalType":"struct IBridge.Message","components":[{"type":"uint64","name":"id","internalType":"uint64"},{"type":"uint64","name":"fee","internalType":"uint64"},{"type":"uint32","name":"gasLimit","internalType":"uint32"},{"type":"address","name":"from","internalType":"address"},{"type":"uint64","name":"srcChainId","internalType":"uint64"},{"type":"address","name":"srcOwner","internalType":"address"},{"type":"uint64","name":"destChainId","internalType":"uint64"},{"type":"address","name":"destOwner","internalType":"address"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"},{"type":"bytes","name":"data","internalType":"bytes"}]}]},{"type":"function","stateMutability":"pure","outputs":[{"type":"uint32","name":"","internalType":"uint32"}],"name":"getMessageMinGasLimit","inputs":[{"type":"uint256","name":"dataLength","internalType":"uint256"}]},{"type":"function","stateMutability":"pure","outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"hashMessage","inputs":[{"type":"tuple","name":"_message","internalType":"struct IBridge.Message","components":[{"type":"uint64","name":"id","internalType":"uint64"},{"type":"uint64","name":"fee","internalType":"uint64"},{"type":"uint32","name":"gasLimit","internalType":"uint32"},{"type":"address","name":"from","internalType":"address"},{"type":"uint64","name":"srcChainId","internalType":"uint64"},{"type":"address","name":"srcOwner","internalType":"address"},{"type":"uint64","name":"destChainId","internalType":"uint64"},{"type":"address","name":"destOwner","internalType":"address"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"},{"type":"bytes","name":"data","internalType":"bytes"}]}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"impl","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"inNonReentrant","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"init","inputs":[{"type":"address","name":"_owner","internalType":"address"},{"type":"address","name":"_sharedAddressManager","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"init2","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"enabled_","internalType":"bool"},{"type":"address","name":"destBridge_","internalType":"address"}],"name":"isDestChainEnabled","inputs":[{"type":"uint64","name":"_chainId","internalType":"uint64"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"isMessageFailed","inputs":[{"type":"tuple","name":"_message","internalType":"struct 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IBridge.Status"}],"name":"messageStatus","inputs":[{"type":"bytes32","name":"msgHash","internalType":"bytes32"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint64","name":"","internalType":"uint64"}],"name":"nextMessageId","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"owner","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"pause","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"paused","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"pendingOwner","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint8","name":"status_","internalType":"enum IBridge.Status"},{"type":"uint8","name":"reason_","internalType":"enum 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Contract Creation Code
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