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Contract

0xE62Efa5462961055757C63931a15601545E4d273
 

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198192552024-05-07 16:03:11218 days ago1715097791  Contract Creation0 ETH
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x585B3e95...4864Da3ca
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
AuthorizedForwarder

Compiler Version
v0.8.19+commit.7dd6d404

Optimization Enabled:
Yes with 1000000 runs

Other Settings:
paris EvmVersion, MIT license
File 1 of 6 : AuthorizedForwarder.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;

import {ConfirmedOwnerWithProposal} from "../shared/access/ConfirmedOwnerWithProposal.sol";
import {AuthorizedReceiver} from "./AuthorizedReceiver.sol";
import {Address} from "@openzeppelin/contracts/utils/Address.sol";

// solhint-disable gas-custom-errors
contract AuthorizedForwarder is ConfirmedOwnerWithProposal, AuthorizedReceiver {
  using Address for address;

  // solhint-disable-next-line chainlink-solidity/prefix-immutable-variables-with-i
  address public immutable linkToken;

  event OwnershipTransferRequestedWithMessage(address indexed from, address indexed to, bytes message);

  constructor(
    address link,
    address owner,
    address recipient,
    bytes memory message
  ) ConfirmedOwnerWithProposal(owner, recipient) {
    require(link != address(0), "Link token cannot be a zero address");
    linkToken = link;
    if (recipient != address(0)) {
      emit OwnershipTransferRequestedWithMessage(owner, recipient, message);
    }
  }

  string public constant typeAndVersion = "AuthorizedForwarder 1.1.0";

  // @notice Forward a call to another contract
  // @dev Only callable by an authorized sender
  // @param to address
  // @param data to forward
  function forward(address to, bytes calldata data) external validateAuthorizedSender {
    require(to != linkToken, "Cannot forward to Link token");
    _forward(to, data);
  }

  //  @notice Forward multiple calls to other contracts in a multicall style
  //  @dev Only callable by an authorized sender
  //  @param tos An array of addresses to forward the calls to
  //  @param datas An array of data to forward to each corresponding address
  function multiForward(address[] calldata tos, bytes[] calldata datas) external validateAuthorizedSender {
    require(tos.length == datas.length, "Arrays must have the same length");

    for (uint256 i = 0; i < tos.length; ++i) {
      address to = tos[i];
      require(to != linkToken, "Cannot forward to Link token");

      // Perform the forward operation
      _forward(to, datas[i]);
    }
  }

  // @notice Forward a call to another contract
  // @dev Only callable by the owner
  // @param to address
  // @param data to forward
  function ownerForward(address to, bytes calldata data) external onlyOwner {
    _forward(to, data);
  }

  // @notice Transfer ownership with instructions for recipient
  // @param to address proposed recipient of ownership
  // @param message instructions for recipient upon accepting ownership
  function transferOwnershipWithMessage(address to, bytes calldata message) external {
    transferOwnership(to);
    emit OwnershipTransferRequestedWithMessage(msg.sender, to, message);
  }

  // @notice concrete implementation of AuthorizedReceiver
  // @return bool of whether sender is authorized
  function _canSetAuthorizedSenders() internal view override returns (bool) {
    return owner() == msg.sender;
  }

  // @notice common forwarding functionality and validation
  function _forward(address to, bytes calldata data) private {
    require(to.isContract(), "Must forward to a contract");
    // solhint-disable-next-line avoid-low-level-calls
    (bool success, bytes memory result) = to.call(data);
    if (!success) {
      if (result.length == 0) revert("Forwarded call reverted without reason");
      assembly {
        revert(add(32, result), mload(result))
      }
    }
  }
}

File 2 of 6 : 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);
        }
    }
}

File 3 of 6 : AuthorizedReceiver.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;

import {IAuthorizedReceiver} from "./interfaces/IAuthorizedReceiver.sol";

// solhint-disable gas-custom-errors
abstract contract AuthorizedReceiver is IAuthorizedReceiver {
  mapping(address sender => bool authorized) private s_authorizedSenders;
  address[] private s_authorizedSenderList;

  event AuthorizedSendersChanged(address[] senders, address changedBy);

  // @notice Sets the fulfillment permission for a given node. Use `true` to allow, `false` to disallow.
  // @param senders The addresses of the authorized Chainlink node
  function setAuthorizedSenders(address[] calldata senders) external override validateAuthorizedSenderSetter {
    require(senders.length > 0, "Must have at least 1 sender");
    // Set previous authorized senders to false
    uint256 authorizedSendersLength = s_authorizedSenderList.length;
    for (uint256 i = 0; i < authorizedSendersLength; ++i) {
      s_authorizedSenders[s_authorizedSenderList[i]] = false;
    }
    // Set new to true
    for (uint256 i = 0; i < senders.length; ++i) {
      require(s_authorizedSenders[senders[i]] == false, "Must not have duplicate senders");
      s_authorizedSenders[senders[i]] = true;
    }
    // Replace list
    s_authorizedSenderList = senders;
    emit AuthorizedSendersChanged(senders, msg.sender);
  }

  // @notice Retrieve a list of authorized senders
  // @return array of addresses
  function getAuthorizedSenders() external view override returns (address[] memory) {
    return s_authorizedSenderList;
  }

  // @notice Use this to check if a node is authorized for fulfilling requests
  // @param sender The address of the Chainlink node
  // @return The authorization status of the node
  function isAuthorizedSender(address sender) public view override returns (bool) {
    return s_authorizedSenders[sender];
  }

  // @notice customizable guard of who can update the authorized sender list
  // @return bool whether sender can update authorized sender list
  function _canSetAuthorizedSenders() internal virtual returns (bool);

  // @notice validates the sender is an authorized sender
  function _validateIsAuthorizedSender() internal view {
    require(isAuthorizedSender(msg.sender), "Not authorized sender");
  }

  // @notice prevents non-authorized addresses from calling this method
  modifier validateAuthorizedSender() {
    _validateIsAuthorizedSender();
    _;
  }

  // @notice prevents non-authorized addresses from calling this method
  modifier validateAuthorizedSenderSetter() {
    require(_canSetAuthorizedSenders(), "Cannot set authorized senders");
    _;
  }
}

File 4 of 6 : IAuthorizedReceiver.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IAuthorizedReceiver {
  function isAuthorizedSender(address sender) external view returns (bool);

  function getAuthorizedSenders() external returns (address[] memory);

  function setAuthorizedSenders(address[] calldata senders) external;
}

File 5 of 6 : ConfirmedOwnerWithProposal.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IOwnable} from "../interfaces/IOwnable.sol";

/// @title The ConfirmedOwner contract
/// @notice A contract with helpers for basic contract ownership.
contract ConfirmedOwnerWithProposal is IOwnable {
  address private s_owner;
  address private s_pendingOwner;

  event OwnershipTransferRequested(address indexed from, address indexed to);
  event OwnershipTransferred(address indexed from, address indexed to);

  constructor(address newOwner, address pendingOwner) {
    // solhint-disable-next-line gas-custom-errors
    require(newOwner != address(0), "Cannot set owner to zero");

    s_owner = newOwner;
    if (pendingOwner != address(0)) {
      _transferOwnership(pendingOwner);
    }
  }

  /// @notice Allows an owner to begin transferring ownership to a new address.
  function transferOwnership(address to) public override onlyOwner {
    _transferOwnership(to);
  }

  /// @notice Allows an ownership transfer to be completed by the recipient.
  function acceptOwnership() external override {
    // solhint-disable-next-line gas-custom-errors
    require(msg.sender == s_pendingOwner, "Must be proposed owner");

    address oldOwner = s_owner;
    s_owner = msg.sender;
    s_pendingOwner = address(0);

    emit OwnershipTransferred(oldOwner, msg.sender);
  }

  /// @notice Get the current owner
  function owner() public view override returns (address) {
    return s_owner;
  }

  /// @notice validate, transfer ownership, and emit relevant events
  function _transferOwnership(address to) private {
    // solhint-disable-next-line gas-custom-errors
    require(to != msg.sender, "Cannot transfer to self");

    s_pendingOwner = to;

    emit OwnershipTransferRequested(s_owner, to);
  }

  /// @notice validate access
  function _validateOwnership() internal view {
    // solhint-disable-next-line gas-custom-errors
    require(msg.sender == s_owner, "Only callable by owner");
  }

  /// @notice Reverts if called by anyone other than the contract owner.
  modifier onlyOwner() {
    _validateOwnership();
    _;
  }
}

File 6 of 6 : IOwnable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

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

  function transferOwnership(address recipient) external;

  function acceptOwnership() external;
}

Settings
{
  "remappings": [
    "ds-test/=foundry-lib/forge-std/lib/ds-test/src/",
    "forge-std/=foundry-lib/forge-std/src/",
    "@openzeppelin/=node_modules/@openzeppelin/",
    "hardhat/=node_modules/hardhat/",
    "@eth-optimism/=node_modules/@eth-optimism/",
    "@scroll-tech/=node_modules/@scroll-tech/",
    "erc4626-tests/=foundry-lib/openzeppelin-contracts/lib/erc4626-tests/",
    "openzeppelin-contracts/=foundry-lib/openzeppelin-contracts/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 1000000
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "none",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "viaIR": false,
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"link","type":"address"},{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"bytes","name":"message","type":"bytes"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address[]","name":"senders","type":"address[]"},{"indexed":false,"internalType":"address","name":"changedBy","type":"address"}],"name":"AuthorizedSendersChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"OwnershipTransferRequested","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"bytes","name":"message","type":"bytes"}],"name":"OwnershipTransferRequestedWithMessage","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[],"name":"acceptOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"forward","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getAuthorizedSenders","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"}],"name":"isAuthorizedSender","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"linkToken","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"tos","type":"address[]"},{"internalType":"bytes[]","name":"datas","type":"bytes[]"}],"name":"multiForward","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"ownerForward","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"senders","type":"address[]"}],"name":"setAuthorizedSenders","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"message","type":"bytes"}],"name":"transferOwnershipWithMessage","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"typeAndVersion","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"}]

Deployed Bytecode

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