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/**
 *Submitted for verification at fraxscan.com on 2024-07-30
*/

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.8.0;


// node_modules/@openzeppelin/contracts/security/ReentrancyGuard.sol

// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)

/**
 * @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() {
        _status = _NOT_ENTERED;
    }

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

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

        _;

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

// node_modules/@openzeppelin/contracts/token/ERC20/IERC20.sol

// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);
}

// node_modules/@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol

// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)

/**
 * @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.
 */
interface IERC20Permit {
    /**
     * @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].
     */
    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/utils/Address.sol

// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly
                /// @solidity memory-safe-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// src/contracts/Miscellany/FraxFarmQuitCreditor/ICrossDomainMessenger.sol

interface ICrossDomainMessenger {
    function MESSAGE_VERSION() external view returns (uint16);

    function MIN_GAS_CALLDATA_OVERHEAD() external view returns (uint64);

    function MIN_GAS_DYNAMIC_OVERHEAD_DENOMINATOR() external view returns (uint64);

    function MIN_GAS_DYNAMIC_OVERHEAD_NUMERATOR() external view returns (uint64);

    function OTHER_MESSENGER() external view returns (address);

    function RELAY_CALL_OVERHEAD() external view returns (uint64);

    function RELAY_CONSTANT_OVERHEAD() external view returns (uint64);

    function RELAY_GAS_CHECK_BUFFER() external view returns (uint64);

    function RELAY_RESERVED_GAS() external view returns (uint64);

    function baseGas(bytes memory _message, uint32 _minGasLimit) external pure returns (uint64);

    function failedMessages(bytes32) external view returns (bool);

    function initialize() external;

    function l1CrossDomainMessenger() external view returns (address);

    function messageNonce() external view returns (uint256);

    function paused() external view returns (bool);

    function relayMessage(
        uint256 _nonce,
        address _sender,
        address _target,
        uint256 _value,
        uint256 _minGasLimit,
        bytes memory _message
    ) external;

    function sendMessage(address _target, bytes memory _message, uint32 _minGasLimit) external;

    function successfulMessages(bytes32) external view returns (bool);

    function version() external view returns (string memory);

    function xDomainMessageSender() external view returns (address);
}

// src/contracts/Miscellany/FraxFarmQuitCreditor/IExponentialPriceOracle.sol

interface IExponentialPriceOracle {
    function getPrices() external view returns (bool _isBadData, uint256 _priceLow, uint256 _priceHigh);

    function priceEnd() external view returns (uint256);

    function pricePerShare() external view returns (uint256 _price);

    function priceStart() external view returns (uint256);

    function timeEnd() external view returns (uint256);

    function timeStart() external view returns (uint256);
}

// src/contracts/Miscellany/OwnedV2.sol

// https://docs.synthetix.io/contracts/Owned
contract OwnedV2 {
    error OwnerCannotBeZero();
    error InvalidOwnershipAcceptance();
    error OnlyOwner();

    address public owner;
    address public nominatedOwner;

    constructor(address _owner) {
        // require(_owner != address(0), "Owner address cannot be 0");
        if (_owner == address(0)) revert OwnerCannotBeZero();
        owner = _owner;
        emit OwnerChanged(address(0), _owner);
    }

    function nominateNewOwner(address _owner) external onlyOwner {
        nominatedOwner = _owner;
        emit OwnerNominated(_owner);
    }

    function acceptOwnership() external {
        // require(msg.sender == nominatedOwner, "You must be nominated before you can accept ownership");
        if (msg.sender != nominatedOwner) revert InvalidOwnershipAcceptance();
        emit OwnerChanged(owner, nominatedOwner);
        owner = nominatedOwner;
        nominatedOwner = address(0);
    }

    modifier onlyOwner() {
        // require(msg.sender == owner, "Only the contract owner may perform this action");
        if (msg.sender != owner) revert OnlyOwner();
        _;
    }

    event OwnerNominated(address newOwner);
    event OwnerChanged(address oldOwner, address newOwner);
}

// node_modules/@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol

// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// src/contracts/Miscellany/FraxFarmQuitCreditor/L1QuitCreditorReceiverConverter.sol

// ====================================================================
// |     ______                   _______                             |
// |    / _____________ __  __   / ____(_____  ____ _____  ________   |
// |   / /_  / ___/ __ `| |/_/  / /_  / / __ \/ __ `/ __ \/ ___/ _ \  |
// |  / __/ / /  / /_/ _>  <   / __/ / / / / / /_/ / / / / /__/  __/  |
// | /_/   /_/   \__,_/_/|_|  /_/   /_/_/ /_/\__,_/_/ /_/\___/\___/   |
// |                                                                  |
// ====================================================================
// ================= L1QuitCreditorReceiverConverter ==================
// ====================================================================
// Accepts an L1 message from an Ethereum Mainnet FraxFarmQuitCreditor_XXX and converts the provided USD value to another token

// Frax Finance: https://github.com/FraxFinance

// Primary Author(s)
// Travis Moore: https://github.com/FortisFortuna

// Reviewer(s) / Contributor(s)
// Dennis: https://github.com/denett

/// @notice Accepts an L1 message from an Ethereum Mainnet FraxFarmQuitCreditor_XXX and converts the provided USD value to another token
contract L1QuitCreditorReceiverConverter is ReentrancyGuard, OwnedV2 {
    // STATE VARIABLES
    // ===================================================

    /// @notice Fraxtal CrossDomainMessenger
    ICrossDomainMessenger public messenger = ICrossDomainMessenger(0x4200000000000000000000000000000000000007);

    /// @notice Address of the L1 FraxFarmQuitCreditor_XXX
    address public quitCreditorAddress;

    /// @notice Token that the L1 USD credit is being exchanged for
    IERC20 public conversionToken;

    /// @notice Manually set conversion price (USDe18 per 1e18 conversion token)
    uint256 public conversionPrice;

    /// @notice Used for testing
    mapping(address pinger => Ping lastPing) public lastPingReceived;

    // STRUCTS
    // ===================================================

    /// @notice Ping used for testing purposes
    /// @param sourceTs Timestamp the ping was triggered on Ethereum
    /// @param fraxtalTs Timestamp the ping was received on this contract
    struct Ping {
        uint256 sourceTs;
        uint256 fraxtalTs;
    }

    // MODIFIERS
    // ===================================================

    modifier correctSender() {
        // Make sure the direct msg.sender is the messenger
        if (msg.sender != address(messenger)) revert BadSender();

        // Make sure that the caller on L1 was the FraxFarmQuitCreditor_XXX
        if (messenger.xDomainMessageSender() != quitCreditorAddress) revert BadXDomainMessageSender();

        _;
    }

    // CONSTRUCTOR
    // ===================================================

    /// @notice Constructor
    /// @param _owner The owner of the contract
    /// @param _quitCreditor Address of the L1 FraxFarmQuitCreditor_XXX
    /// @param _conversionToken Token being converted to
    /// @param _conversionPrice Price of the conversion token, in E18 USD
    constructor(
        address _owner,
        address _quitCreditor,
        address _conversionToken,
        uint256 _conversionPrice
    ) OwnedV2(_owner) {
        quitCreditorAddress = _quitCreditor;
        conversionToken = IERC20(_conversionToken);
        conversionPrice = _conversionPrice;
    }

    // PUBLIC FUNCTIONS
    // ===================================================

    /// @notice Used to test connectivity. Receives a dummy message from Ethereum
    /// @param _pinger Original pinger on Ethereum
    /// @param _sourceTs Time the ping was sent on Ethereum
    function receivePing(address _pinger, uint256 _sourceTs) external nonReentrant correctSender {
        // Mark when the last ping was received
        lastPingReceived[_pinger] = Ping(_sourceTs, block.timestamp);

        emit PingReceived(_pinger, _sourceTs, block.timestamp);
    }

    /// @notice Processes the L1-originating message from the FraxFarmQuitCreditor_XXX
    /// @param _originalStaker Address of the original farmer who held the position
    /// @param _recipient Recipient for the newly converted tokens
    /// @param _usdCredit The USD value that should be converted into the conversion token
    function processMessage(
        address _originalStaker,
        address _recipient,
        uint256 _usdCredit
    ) external nonReentrant correctSender returns (uint256 _convTknOut) {
        // Do the conversion
        _convTknOut = (_usdCredit * 1e18) / conversionPrice;

        // Send out the tokens
        SafeERC20.safeTransfer(conversionToken, _recipient, _convTknOut);

        emit MessageProcessed(_originalStaker, _recipient, _usdCredit, _convTknOut);
    }

    // RESTRICTED FUNCTIONS
    // ===================================================

    /// @notice Allows the owner to recover any ERC20
    /// @param tokenAddress The address of the token to recover
    /// @param tokenAmount The amount of the token to recover
    function recoverERC20(address tokenAddress, uint256 tokenAmount) external onlyOwner {
        SafeERC20.safeTransfer(IERC20(tokenAddress), msg.sender, tokenAmount);
    }

    /// @notice Set the price of the conversion token, in E18 USD
    /// @param _newConversionPrice The new conversion price
    function setConversionPrice(uint256 _newConversionPrice) external onlyOwner {
        conversionPrice = _newConversionPrice;
    }

    /// @notice Set the address for the L1 FraxFarmQuitCreditor_XXX
    /// @param _newQuitCreditorAddress The new address for the L1 FraxFarmQuitCreditor_XXX
    function setQuitCreditorAddress(address _newQuitCreditorAddress) external onlyOwner {
        quitCreditorAddress = _newQuitCreditorAddress;
    }

    // ERRORS
    // ===================================================

    /// @notice Only the CrossDomainMessenger should be the sender
    error BadSender();

    /// @notice Only the FraxFarmQuitCreditor_XXX should be the messenger.xDomainMessageSender()
    error BadXDomainMessageSender();

    // EVENTS
    // ===================================================

    /// @notice When the ping from L1 was received
    /// @param sender The msg.sender that triggered the ping on the FraxFarmQuitCreditor_XXX
    /// @param sourceTs Ethereum time the ping was received
    /// @param fraxtalTs Fraxtal time the ping was received
    event PingReceived(address indexed sender, uint256 sourceTs, uint256 fraxtalTs);

    /// @notice When the crediting message from the L1 FraxFarmQuitCreditor_XXX was processed
    /// @param originalStaker Address of the original farmer who held the position
    /// @param recipient Recipient for the newly converted tokens
    /// @param usdCredit Amount of USD credit processed
    /// @param convTknOut Conversion token output amount to the recipient
    event MessageProcessed(
        address indexed originalStaker,
        address indexed recipient,
        uint256 usdCredit,
        uint256 convTknOut
    );

    /// @notice When ERC20 tokens were recovered
    /// @param token Token address
    /// @param amount Amount of tokens collected
    event RecoveredERC20(address token, uint256 amount);
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_owner","type":"address"},{"internalType":"address","name":"_quitCreditor","type":"address"},{"internalType":"address","name":"_conversionToken","type":"address"},{"internalType":"uint256","name":"_conversionPrice","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"BadSender","type":"error"},{"inputs":[],"name":"BadXDomainMessageSender","type":"error"},{"inputs":[],"name":"InvalidOwnershipAcceptance","type":"error"},{"inputs":[],"name":"OnlyOwner","type":"error"},{"inputs":[],"name":"OwnerCannotBeZero","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"originalStaker","type":"address"},{"indexed":true,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"usdCredit","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"convTknOut","type":"uint256"}],"name":"MessageProcessed","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldOwner","type":"address"},{"indexed":false,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnerChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnerNominated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"sourceTs","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"fraxtalTs","type":"uint256"}],"name":"PingReceived","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"RecoveredERC20","type":"event"},{"inputs":[],"name":"acceptOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"conversionPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"conversionToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"pinger","type":"address"}],"name":"lastPingReceived","outputs":[{"internalType":"uint256","name":"sourceTs","type":"uint256"},{"internalType":"uint256","name":"fraxtalTs","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"messenger","outputs":[{"internalType":"contract ICrossDomainMessenger","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"}],"name":"nominateNewOwner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"nominatedOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_originalStaker","type":"address"},{"internalType":"address","name":"_recipient","type":"address"},{"internalType":"uint256","name":"_usdCredit","type":"uint256"}],"name":"processMessage","outputs":[{"internalType":"uint256","name":"_convTknOut","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"quitCreditorAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_pinger","type":"address"},{"internalType":"uint256","name":"_sourceTs","type":"uint256"}],"name":"receivePing","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenAddress","type":"address"},{"internalType":"uint256","name":"tokenAmount","type":"uint256"}],"name":"recoverERC20","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newConversionPrice","type":"uint256"}],"name":"setConversionPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_newQuitCreditorAddress","type":"address"}],"name":"setQuitCreditorAddress","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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000000000000000000000000c4eb45d80dc1f079045e75d5d55de8ed1c1090e60000000000000000000000000f9f5f734e666b498517ca1681dfc2e08228454a000000000000000000000000f1e2b576af4c6a7ee966b14c810b772391e921530000000000000000000000000000000000000000000000000b04dacb0fa90000

-----Decoded View---------------
Arg [0] : _owner (address): 0xC4EB45d80DC1F079045E75D5d55de8eD1c1090E6
Arg [1] : _quitCreditor (address): 0x0f9f5f734e666b498517cA1681Dfc2e08228454a
Arg [2] : _conversionToken (address): 0xF1e2b576aF4C6a7eE966b14C810b772391e92153
Arg [3] : _conversionPrice (uint256): 794000000000000000

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 000000000000000000000000c4eb45d80dc1f079045e75d5d55de8ed1c1090e6
Arg [1] : 0000000000000000000000000f9f5f734e666b498517ca1681dfc2e08228454a
Arg [2] : 000000000000000000000000f1e2b576af4c6a7ee966b14c810b772391e92153
Arg [3] : 0000000000000000000000000000000000000000000000000b04dacb0fa90000

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