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// SPDX-License-Identifier: MIT
pragma solidity 0.7.5;

import "@arbitrum/nitro-contracts/src/bridge/IInbox.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

import "./L2MessageExecutor.sol";

contract L1MessageRelayer is Ownable {
  /// @notice Address of the governance TimeLock contract.
  address public timeLock;

  /// @notice Address of arbitrum's L1 inbox contract.
  IInbox public inbox;

  /// @notice Emitted when a retryable ticket is created for relaying L1 message to L2.
  event RetryableTicketCreated(uint256 indexed ticketId);

  /// @notice Throws if called by any account other than the timeLock contract.
  modifier onlyTimeLock() {
    require(
      msg.sender == timeLock,
      "L1MessageRelayer::onlyTimeLock: Unauthorized message sender"
    );
    _;
  }

  constructor(address _timeLock, address _inbox) {
    require(_timeLock != address(0), "_timeLock can't the zero address");
    require(_inbox != address(0), "_inbox can't the zero address");
    timeLock = _timeLock;
    inbox = IInbox(_inbox);
  }

  /// @notice renounceOwnership has been disabled so that the contract is never left without a onwer
  /// @inheritdoc Ownable
  function renounceOwnership() public override onlyOwner {
    revert("function disabled");
  }

  /**
   * @notice sends message received from timeLock to L2MessageExecutorProxy.
   * @param target address of the target contract on arbitrum.
   * @param payLoad message calldata that will be executed by l2MessageExecutorProxy.
   * @param maxSubmissionCost same as maxSubmissionCost parameter of inbox.createRetryableTicket
   * @param maxGas same as maxGas parameter of inbox.createRetryableTicket
   * @param gasPriceBid same as gasPriceBid parameter of inbox.createRetryableTicket
   **/
  function relayMessage(
    address target,
    bytes memory payLoad,
    uint256 maxSubmissionCost,
    uint256 maxGas,
    uint256 gasPriceBid
  ) external payable onlyTimeLock returns (uint256) {
    require(maxGas != 1, "maxGas can't be 1");
    require(gasPriceBid != 1, "gasPriceBid can't be 1");
    uint256 ticketID = inbox.createRetryableTicket{value: msg.value}(
      target,
      0,
      maxSubmissionCost,
      msg.sender,
      msg.sender,
      maxGas,
      gasPriceBid,
      payLoad
    );
    emit RetryableTicketCreated(ticketID);
    return ticketID;
  }
}

// Copyright 2021-2022, Offchain Labs, Inc.
// For license information, see https://github.com/nitro/blob/master/LICENSE
// SPDX-License-Identifier: BUSL-1.1

// solhint-disable-next-line compiler-version
pragma solidity >=0.6.9 <0.9.0;

import "./IOwnable.sol";

interface IBridge {
    event MessageDelivered(
        uint256 indexed messageIndex,
        bytes32 indexed beforeInboxAcc,
        address inbox,
        uint8 kind,
        address sender,
        bytes32 messageDataHash,
        uint256 baseFeeL1,
        uint64 timestamp
    );

    event BridgeCallTriggered(
        address indexed outbox,
        address indexed to,
        uint256 value,
        bytes data
    );

    event InboxToggle(address indexed inbox, bool enabled);

    event OutboxToggle(address indexed outbox, bool enabled);

    event SequencerInboxUpdated(address newSequencerInbox);

    function enqueueDelayedMessage(
        uint8 kind,
        address sender,
        bytes32 messageDataHash
    ) external payable returns (uint256);

    function enqueueSequencerMessage(bytes32 dataHash, uint256 afterDelayedMessagesRead)
        external
        returns (
            uint256 seqMessageIndex,
            bytes32 beforeAcc,
            bytes32 delayedAcc,
            bytes32 acc
        );

    function submitBatchSpendingReport(address batchPoster, bytes32 dataHash)
        external
        returns (uint256 msgNum);

    function executeCall(
        address to,
        uint256 value,
        bytes calldata data
    ) external returns (bool success, bytes memory returnData);

    // These are only callable by the admin
    function setDelayedInbox(address inbox, bool enabled) external;

    function setOutbox(address inbox, bool enabled) external;

    function setSequencerInbox(address _sequencerInbox) external;

    // View functions

    function sequencerInbox() external view returns (address);

    function activeOutbox() external view returns (address);

    function allowedDelayedInboxes(address inbox) external view returns (bool);

    function allowedOutboxes(address outbox) external view returns (bool);

    function delayedInboxAccs(uint256 index) external view returns (bytes32);

    function sequencerInboxAccs(uint256 index) external view returns (bytes32);

    function delayedMessageCount() external view returns (uint256);

    function sequencerMessageCount() external view returns (uint256);

    function rollup() external view returns (IOwnable);

    function acceptFundsFromOldBridge() external payable;
}

// Copyright 2021-2022, Offchain Labs, Inc.
// For license information, see https://github.com/nitro/blob/master/LICENSE
// SPDX-License-Identifier: BUSL-1.1

// solhint-disable-next-line compiler-version
pragma solidity >=0.6.9 <0.9.0;

interface IDelayedMessageProvider {
    /// @dev event emitted when a inbox message is added to the Bridge's delayed accumulator
    event InboxMessageDelivered(uint256 indexed messageNum, bytes data);

    /// @dev event emitted when a inbox message is added to the Bridge's delayed accumulator
    /// same as InboxMessageDelivered but the batch data is available in tx.input
    event InboxMessageDeliveredFromOrigin(uint256 indexed messageNum);
}

// Copyright 2021-2022, Offchain Labs, Inc.
// For license information, see https://github.com/nitro/blob/master/LICENSE
// SPDX-License-Identifier: BUSL-1.1

// solhint-disable-next-line compiler-version
pragma solidity >=0.6.9 <0.9.0;

import "./IBridge.sol";
import "./IDelayedMessageProvider.sol";

interface IInbox is IDelayedMessageProvider {
    function sendL2Message(bytes calldata messageData) external returns (uint256);

    function sendUnsignedTransaction(
        uint256 gasLimit,
        uint256 maxFeePerGas,
        uint256 nonce,
        address to,
        uint256 value,
        bytes calldata data
    ) external returns (uint256);

    function sendContractTransaction(
        uint256 gasLimit,
        uint256 maxFeePerGas,
        address to,
        uint256 value,
        bytes calldata data
    ) external returns (uint256);

    function sendL1FundedUnsignedTransaction(
        uint256 gasLimit,
        uint256 maxFeePerGas,
        uint256 nonce,
        address to,
        bytes calldata data
    ) external payable returns (uint256);

    function sendL1FundedContractTransaction(
        uint256 gasLimit,
        uint256 maxFeePerGas,
        address to,
        bytes calldata data
    ) external payable returns (uint256);

    /// @dev Gas limit and maxFeePerGas should not be set to 1 as that is used to trigger the RetryableData error
    function createRetryableTicket(
        address to,
        uint256 arbTxCallValue,
        uint256 maxSubmissionCost,
        address submissionRefundAddress,
        address valueRefundAddress,
        uint256 gasLimit,
        uint256 maxFeePerGas,
        bytes calldata data
    ) external payable returns (uint256);

    /// @dev Gas limit and maxFeePerGas should not be set to 1 as that is used to trigger the RetryableData error
    function unsafeCreateRetryableTicket(
        address to,
        uint256 arbTxCallValue,
        uint256 maxSubmissionCost,
        address submissionRefundAddress,
        address valueRefundAddress,
        uint256 gasLimit,
        uint256 maxFeePerGas,
        bytes calldata data
    ) external payable returns (uint256);

    function depositEth() external payable returns (uint256);

    /// @notice deprecated in favour of depositEth with no parameters
    function depositEth(uint256 maxSubmissionCost) external payable returns (uint256);

    function bridge() external view returns (IBridge);

    function postUpgradeInit(IBridge _bridge) external;
}

// Copyright 2021-2022, Offchain Labs, Inc.
// For license information, see https://github.com/nitro/blob/master/LICENSE
// SPDX-License-Identifier: BUSL-1.1

// solhint-disable-next-line compiler-version
pragma solidity >=0.4.21 <0.9.0;

interface IOwnable {
    function owner() external view returns (address);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "../utils/Context.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 Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = 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");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor () internal {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and make it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}

// SPDX-License-Identifier: Apache-2.0

/*
 * Copyright 2019-2021, Offchain Labs, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

pragma solidity 0.7.5;

library AddressAliasHelper {
  uint160 constant OFFSET = uint160(0x1111000000000000000000000000000000001111);

  /// @notice Utility function that converts the address in the L1 that submitted a tx to
  /// the inbox to the msg.sender viewed in the L2
  /// @param l1Address the address in the L1 that triggered the tx to L2
  /// @return l2Address L2 address as viewed in msg.sender
  function applyL1ToL2Alias(address l1Address)
    internal
    pure
    returns (address l2Address)
  {
    l2Address = address(uint160(l1Address) + OFFSET);
  }

  /// @notice Utility function that converts the msg.sender viewed in the L2 to the
  /// address in the L1 that submitted a tx to the inbox
  /// @param l2Address L2 address as viewed in msg.sender
  /// @return l1Address the address in the L1 that triggered the tx to L2
  function undoL1ToL2Alias(address l2Address)
    internal
    pure
    returns (address l1Address)
  {
    l1Address = address(uint160(l2Address) - OFFSET);
  }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.7.5;

import {ReentrancyGuard} from "@openzeppelin/contracts/utils/ReentrancyGuard.sol";

import {AddressAliasHelper} from "./AddressAliasHelper.sol";

/**
 * @dev This contract executes messages received from layer1 governance on arbitrum.
 * This meant to be an upgradeable contract and it should only be used with TransparentUpgradeableProxy.
 */
contract L2MessageExecutor is ReentrancyGuard {
  /// @notice Address of the L1MessageRelayer contract on mainnet.
  address public l1MessageRelayer;

  /// @dev flag to make sure that the initialize function is only called once
  bool private isInitialized = false;

  constructor() {
		// Disable initialization for external users.
		// Only proxies should be able to initialize this contract.
    isInitialized = true;
  }

  function initialize(address _l1MessageRelayer) external {
    require(!isInitialized, "Contract is already initialized!");
    isInitialized = true;
    require(
      _l1MessageRelayer != address(0),
      "_l1MessageRelayer can't be the zero address"
    );
    l1MessageRelayer = _l1MessageRelayer;
  }

  /**
   * @notice executes message received from L1.
   * @param payLoad message received from L1 that needs to be executed.
   **/
  function executeMessage(bytes calldata payLoad) external nonReentrant {
    // To check that message came from L1, we check that the sender is the L1 contract's L2 alias.
    require(
      msg.sender == AddressAliasHelper.applyL1ToL2Alias(l1MessageRelayer),
      "L2MessageExecutor::executeMessage: Unauthorized message sender"
    );

    (address target, bytes memory callData) = abi.decode(
      payLoad,
      (address, bytes)
    );
    require(target != address(0), "target can't be the zero address");
    (bool success, ) = target.call(callData);
    require(
      success,
      "L2MessageExecutor::executeMessage: Message execution reverted."
    );
  }
}

{
  "evmVersion": "istanbul",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": [],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

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[{"inputs":[{"internalType":"address","name":"_timeLock","type":"address"},{"internalType":"address","name":"_inbox","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"ticketId","type":"uint256"}],"name":"RetryableTicketCreated","type":"event"},{"inputs":[],"name":"inbox","outputs":[{"internalType":"contract IInbox","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bytes","name":"payLoad","type":"bytes"},{"internalType":"uint256","name":"maxSubmissionCost","type":"uint256"},{"internalType":"uint256","name":"maxGas","type":"uint256"},{"internalType":"uint256","name":"gasPriceBid","type":"uint256"}],"name":"relayMessage","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"timeLock","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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000000000000000000000000a54074b2cc0e96a43048d4a68472f7f046ac0da80000000000000000000000004dbd4fc535ac27206064b68ffcf827b0a60bab3f

-----Decoded View---------------
Arg [0] : _timeLock (address): 0xa54074b2cc0e96a43048d4a68472F7F046aC0DA8
Arg [1] : _inbox (address): 0x4Dbd4fc535Ac27206064B68FfCf827b0A60BAB3f

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000a54074b2cc0e96a43048d4a68472f7f046ac0da8
Arg [1] : 0000000000000000000000004dbd4fc535ac27206064b68ffcf827b0a60bab3f