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Set Mayan Protoc...253441912026-01-23 15:36:0445 hrs ago1769182564IN
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Contract Source Code Verified (Exact Match)

Contract Name:
FulfillHelper

Compiler Version
v0.8.28+commit.7893614a

Optimization Enabled:
Yes with 1000 runs

Other Settings:
prague EvmVersion
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "./interfaces/IFeeManager.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "./interfaces/IFulfill.sol";

contract FulfillHelper {

	using SafeERC20 for IERC20;

	address public guardian;
	address public nextGuardian;
	mapping(address => bool) public swapProtocols;
	mapping(address => bool) public mayanProtocols;

	struct FulfillParams {
		bytes encodedVm;
		OrderParams orderParams;
		ExtraParams extraParams;
		bytes32 recipient;
		bool batch;
	}

	error UnsupportedProtocol();

	constructor(address _guardian, address[] memory _swapProtocols, address[] memory _mayanProtocols) {
		guardian = _guardian;
		for (uint256 i = 0; i < _swapProtocols.length; i++) {
			swapProtocols[_swapProtocols[i]] = true;
		}
		for (uint256 i = 0; i < _mayanProtocols.length; i++) {
			mayanProtocols[_mayanProtocols[i]] = true;
		}
	}

	function fulfillWithEth(
		uint256 amountIn,
		address fulfillToken,
		address swapProtocol,
		bytes calldata swapData,
		address mayanProtocol,
		FulfillParams calldata params,
		bytes32 orderHash
	) external payable {
		if (!swapProtocols[swapProtocol] || !mayanProtocols[mayanProtocol]) {
			revert UnsupportedProtocol();
		}
		require(fulfillToken != address(0), 'Invalid fulfill token');
		require(msg.value >= amountIn, 'Insufficient input value');
		uint256 fulfillAmount = IERC20(fulfillToken).balanceOf(address(this));
		(bool success,) = swapProtocol.call{value: amountIn}(swapData);
		require(success, 'Swap call failed');
		fulfillAmount = IERC20(fulfillToken).balanceOf(address(this)) - fulfillAmount;

		maxApproveIfNeeded(fulfillToken, mayanProtocol, fulfillAmount);
		if (params.encodedVm.length > 0) {
			IFulfill(mayanProtocol).fulfillOrder{value: msg.value - amountIn} (
				fulfillAmount,
				params.encodedVm,
				params.orderParams,
				params.extraParams,
				params.recipient,
				params.batch,
				emptyPermit()
			);
		} else {
			IFulfill(mayanProtocol).fulfillSimple{value: msg.value - amountIn} (
				fulfillAmount,
				orderHash,
				params.orderParams,
				params.extraParams,
				params.recipient,
				params.batch,
				emptyPermit()
			);
		}
	} 

	function fulfillWithERC20(
		address tokenIn,
		uint256 amountIn,
		address fulfillToken,
		address swapProtocol,
		bytes calldata swapData,
		address mayanProtocol,
		FulfillParams calldata params,
		bytes32 orderHash,
		PermitParams calldata permitParams
	) external payable {
		if (!swapProtocols[swapProtocol] || !mayanProtocols[mayanProtocol]) {
			revert UnsupportedProtocol();
		}
		uint256 amountBefore = IERC20(tokenIn).balanceOf(address(this));
		pullTokenIn(tokenIn, amountIn, permitParams);
		maxApproveIfNeeded(tokenIn, swapProtocol, amountIn);

		uint256 fulfillAmount;
		if (fulfillToken == address(0)) {
			fulfillAmount = address(this).balance;
		} else {
			fulfillAmount = IERC20(fulfillToken).balanceOf(address(this));
		}

		(bool success,) = swapProtocol.call(swapData);
		require(success, 'Swap call failed');

		transferBackRemaining(tokenIn, amountBefore);

		if (fulfillToken == address(0)) {
			fulfillAmount = address(this).balance - fulfillAmount;
		} else {
			fulfillAmount = IERC20(fulfillToken).balanceOf(address(this)) - fulfillAmount;
		}

		if (fulfillToken == address(0)) {
			if (params.encodedVm.length > 0) {
				IFulfill(mayanProtocol).fulfillOrder{value: msg.value + fulfillAmount}(
					fulfillAmount,
					params.encodedVm,
					params.orderParams,
					params.extraParams,
					params.recipient,
					params.batch,
					emptyPermit()
				);
			} else {
				IFulfill(mayanProtocol).fulfillSimple{value: msg.value + fulfillAmount}(
					fulfillAmount,
					orderHash,
					params.orderParams,
					params.extraParams,
					params.recipient,
					params.batch,
					emptyPermit()
				);
			}
		} else {
			maxApproveIfNeeded(fulfillToken, mayanProtocol, fulfillAmount);
			if (params.encodedVm.length > 0) {
				IFulfill(mayanProtocol).fulfillOrder{value: msg.value}(
					fulfillAmount,
					params.encodedVm,
					params.orderParams,
					params.extraParams,
					params.recipient,
					params.batch,
					emptyPermit()
				);
			} else {
				IFulfill(mayanProtocol).fulfillSimple{value: msg.value}(
					fulfillAmount,
					orderHash,
					params.orderParams,
					params.extraParams,
					params.recipient,
					params.batch,
					emptyPermit()
				);
			}
		}
	}

	function emptyPermit() internal pure returns (PermitParams memory) {
		return PermitParams({
			value: 0,
			deadline: 0,
			v: 0,
			r: bytes32(0),
			s: bytes32(0)
		});
	}

	function transferBackRemaining(address token, uint256 amountBefore) internal {
		uint256 remaining = IERC20(token).balanceOf(address(this));
		if (remaining > amountBefore) {
			IERC20(token).safeTransfer(msg.sender, remaining - amountBefore);
		}
	}

	function maxApproveIfNeeded(address tokenAddr, address spender, uint256 amount) internal {
		IERC20 token = IERC20(tokenAddr);
		uint256 currentAllowance = token.allowance(address(this), spender);

		if (currentAllowance < amount) {
			token.safeApprove(spender, 0);
			token.safeApprove(spender, type(uint256).max);
		}
	}

  	function pullTokenIn(
		address tokenIn,
		uint256 amountIn,
		PermitParams calldata permitParams
	) internal {
		uint256 allowance = IERC20(tokenIn).allowance(msg.sender, address(this));
		if (allowance < amountIn) {
			execPermit(tokenIn, msg.sender, permitParams);
		}
		IERC20(tokenIn).safeTransferFrom(msg.sender, address(this), amountIn);
	}    

	function execPermit(
		address token,
		address owner,
		PermitParams calldata permitParams
	) internal {
		IERC20Permit(token).permit(
			owner,
			address(this),
			permitParams.value,
			permitParams.deadline,
			permitParams.v,
			permitParams.r,
			permitParams.s
		);
	}

	function rescueToken(address token, uint256 amount, address to) public {
		require(msg.sender == guardian, 'only guardian');
		IERC20(token).safeTransfer(to, amount);
	}

	function rescueEth(uint256 amount, address payable to) public {
		require(msg.sender == guardian, 'only guardian');
		require(to != address(0), 'transfer to the zero address');
		(bool success, ) = payable(to).call{value: amount}('');
		require(success, 'payment failed');
	}

	function changeGuardian(address newGuardian) public {
		require(msg.sender == guardian, 'only guardian');
		nextGuardian = newGuardian;
	}

	function claimGuardian() public {
		require(msg.sender == nextGuardian, 'only next guardian');
		guardian = nextGuardian;
	}

	function setSwapProtocol(address swapProtocol, bool enabled) public {
		require(msg.sender == guardian, 'only guardian');
		swapProtocols[swapProtocol] = enabled;
	}

	function setMayanProtocol(address mayanProtocol, bool enabled) public {
		require(msg.sender == guardian, 'only guardian');
		mayanProtocols[mayanProtocol] = enabled;
	}

	receive() external payable {}  
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "../swift/SwiftStructs.sol";

interface IFeeManager {
    event ProtocolFeeCalced(uint8 bps);
    event FeeDeposited(address relayer, address token, uint256 amount);
    event FeeWithdrawn(address token, uint256 amount);

    function calcProtocolBps(
        uint64 amountIn,
        address tokenIn,
        bytes32 tokenOut,
        uint16 destChain,
        uint8 referrerBps
    ) external returns (uint8);

     function calcSwiftProtocolBps(
        address tokenIn,
        uint256 amountIn,
        OrderParams memory params
    )  external returns (uint8);

    function calcFastMCTPProtocolBps(
        uint8 payloadType,
        address localToken,
        uint256 recievedAmount,
        address tokenOut,
        address referrerAddr,
        uint8 referrerBps
    ) external returns (uint8);

	function feeCollector() external view returns (address);

    function depositFee(address owner, address token, uint256 amount) payable external;
    function withdrawFee(address token, uint256 amount) external;
}

// 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 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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../utils/Address.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;

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    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));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    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");
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
     * Revert on invalid signature.
     */
    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");
        require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation 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).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // 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 cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return
            success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
    }
}

// write interface for SwiftDest.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../swift/SwiftStructs.sol";

interface IFulfill {
	function fulfillOrder(
		uint256 fulfillAmount,
		bytes memory encodedVm,
		OrderParams memory params,
		ExtraParams memory extraParams,
		bytes32 recipient,
		bool batch,
		PermitParams calldata permit
	) external payable returns (uint64 sequence);

	function fulfillSimple(
		uint256 fulfillAmount,
		bytes32 orderHash,
		OrderParams memory params,
		ExtraParams memory extraParams,
		bytes32 recipient,
		bool batch,
		PermitParams calldata permit
	) external payable returns (uint64 sequence);
}

File 6 of 8 : SwiftStructs.sol
struct Order {
	Status status;
	uint64 amountIn;
	uint16 destChainId;
}

struct OrderParams {
	uint8 payloadType;
	bytes32 trader;
	bytes32 destAddr;
	uint16 destChainId;
	bytes32 referrerAddr;
	bytes32 tokenOut;
	uint64 minAmountOut;
	uint64 gasDrop;
	uint64 cancelFee;
	uint64 refundFee;
	uint64 deadline;
	uint8 referrerBps;
	uint8 auctionMode;
	bytes32 random;
}

struct ExtraParams {
	uint16 srcChainId;
	bytes32 tokenIn;
	uint8 protocolBps;
	bytes32 customPayloadHash;
}

struct PermitParams {
	uint256 value;
	uint256 deadline;
	uint8 v;
	bytes32 r;
	bytes32 s;
}

struct Key {
	uint8 payloadType;
	bytes32 trader;
	uint16 srcChainId;
	bytes32 tokenIn;
	bytes32 destAddr;
	uint16 destChainId;
	bytes32 tokenOut;
	uint64 minAmountOut;
	uint64 gasDrop;
	uint64 cancelFee;
	uint64 refundFee;
	uint64 deadline;
	bytes32 referrerAddr;
	uint8 referrerBps;
	uint8 protocolBps;
	uint8 auctionMode;
	bytes32 random;
	bytes32 customPayloadHash;
}

struct PaymentParams {
	uint8 payloadType;
	bytes32 orderHash;
	uint64 promisedAmount;
	uint64 minAmountOut;
	address destAddr;
	address tokenOut;
	uint64 gasDrop;
	bool batch;
}

enum Status {
	CREATED,
	FULFILLED,
	SETTLED,
	UNLOCKED,
	CANCELED,
	REFUNDED
}

enum Action {
	INVALID,
	FULFILL,
	UNLOCK,
	REFUND,
	BATCH_UNLOCK,
	COMPRESSED_UNLOCK,
	SET_REFUND_VERIFIER,
	RESCUE
}

enum AuctionMode {
	INVALID,
	LIMIT_ORDER,
	ENGLISH
}

struct UnlockMsg {
	uint8 action;
	bytes32 orderHash;
	uint16 srcChainId;
	bytes32 tokenIn;
	bytes32	referrerAddr;
	uint8 referrerBps;
	uint8 protocolBps;		
	bytes32 unlockReceiver;
	bytes32 driver;
	uint64 fulfillTime;
}
uint constant UNLOCK_MSG_SIZE = 172;	// excluding the action field

struct RefundMsg {
	uint8 action;
	bytes32 orderHash;
	uint16 srcChainId;
	bytes32 tokenIn;
	bytes32 trader;
	bytes32 canceler;
	uint64 cancelFee;
	uint64 refundFee;
}

struct FulfillMsg {
	uint8 action;
	bytes32 orderHash;
	bytes32 driver;
	uint64 promisedAmount;
	uint16 penaltyPeriod;
}

struct TransferParams {
	address from;
	uint256 validAfter;
	uint256 validBefore;
}

struct UnlockParams {
	bytes32 recipient;
	bytes32 driver;
	bool batch;
}

struct RescueMsg {
	uint8 action;
	uint16 chainId;
	bytes32 orderHash;
	uint8 orderStatus;
	address token;
	uint64 amount;
}

struct RefundVerifier {
	uint8 action;
	address verifier;
	uint16 emitterChainId;
	bytes32 emitterAddr;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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.
 */
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);
}

// 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);
        }
    }
}

Settings
{
  "remappings": [
    "ds-test/=lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/src/",
    "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
    "forge-std/=lib/forge-std/src/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "openzeppelin/=lib/openzeppelin-contracts/contracts/",
    "@openzeppelin/=lib/openzeppelin-contracts/",
    "ExcessivelySafeCall/=lib/ExcessivelySafeCall/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "prague",
  "viaIR": false
}

Contract Security Audit

Contract ABI

API
[{"inputs":[{"internalType":"address","name":"_guardian","type":"address"},{"internalType":"address[]","name":"_swapProtocols","type":"address[]"},{"internalType":"address[]","name":"_mayanProtocols","type":"address[]"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"UnsupportedProtocol","type":"error"},{"inputs":[{"internalType":"address","name":"newGuardian","type":"address"}],"name":"changeGuardian","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"claimGuardian","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenIn","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"address","name":"fulfillToken","type":"address"},{"internalType":"address","name":"swapProtocol","type":"address"},{"internalType":"bytes","name":"swapData","type":"bytes"},{"internalType":"address","name":"mayanProtocol","type":"address"},{"components":[{"internalType":"bytes","name":"encodedVm","type":"bytes"},{"components":[{"internalType":"uint8","name":"payloadType","type":"uint8"},{"internalType":"bytes32","name":"trader","type":"bytes32"},{"internalType":"bytes32","name":"destAddr","type":"bytes32"},{"internalType":"uint16","name":"destChainId","type":"uint16"},{"internalType":"bytes32","name":"referrerAddr","type":"bytes32"},{"internalType":"bytes32","name":"tokenOut","type":"bytes32"},{"internalType":"uint64","name":"minAmountOut","type":"uint64"},{"internalType":"uint64","name":"gasDrop","type":"uint64"},{"internalType":"uint64","name":"cancelFee","type":"uint64"},{"internalType":"uint64","name":"refundFee","type":"uint64"},{"internalType":"uint64","name":"deadline","type":"uint64"},{"internalType":"uint8","name":"referrerBps","type":"uint8"},{"internalType":"uint8","name":"auctionMode","type":"uint8"},{"internalType":"bytes32","name":"random","type":"bytes32"}],"internalType":"struct OrderParams","name":"orderParams","type":"tuple"},{"components":[{"internalType":"uint16","name":"srcChainId","type":"uint16"},{"internalType":"bytes32","name":"tokenIn","type":"bytes32"},{"internalType":"uint8","name":"protocolBps","type":"uint8"},{"internalType":"bytes32","name":"customPayloadHash","type":"bytes32"}],"internalType":"struct ExtraParams","name":"extraParams","type":"tuple"},{"internalType":"bytes32","name":"recipient","type":"bytes32"},{"internalType":"bool","name":"batch","type":"bool"}],"internalType":"struct FulfillHelper.FulfillParams","name":"params","type":"tuple"},{"internalType":"bytes32","name":"orderHash","type":"bytes32"},{"components":[{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"internalType":"struct PermitParams","name":"permitParams","type":"tuple"}],"name":"fulfillWithERC20","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"address","name":"fulfillToken","type":"address"},{"internalType":"address","name":"swapProtocol","type":"address"},{"internalType":"bytes","name":"swapData","type":"bytes"},{"internalType":"address","name":"mayanProtocol","type":"address"},{"components":[{"internalType":"bytes","name":"encodedVm","type":"bytes"},{"components":[{"internalType":"uint8","name":"payloadType","type":"uint8"},{"internalType":"bytes32","name":"trader","type":"bytes32"},{"internalType":"bytes32","name":"destAddr","type":"bytes32"},{"internalType":"uint16","name":"destChainId","type":"uint16"},{"internalType":"bytes32","name":"referrerAddr","type":"bytes32"},{"internalType":"bytes32","name":"tokenOut","type":"bytes32"},{"internalType":"uint64","name":"minAmountOut","type":"uint64"},{"internalType":"uint64","name":"gasDrop","type":"uint64"},{"internalType":"uint64","name":"cancelFee","type":"uint64"},{"internalType":"uint64","name":"refundFee","type":"uint64"},{"internalType":"uint64","name":"deadline","type":"uint64"},{"internalType":"uint8","name":"referrerBps","type":"uint8"},{"internalType":"uint8","name":"auctionMode","type":"uint8"},{"internalType":"bytes32","name":"random","type":"bytes32"}],"internalType":"struct OrderParams","name":"orderParams","type":"tuple"},{"components":[{"internalType":"uint16","name":"srcChainId","type":"uint16"},{"internalType":"bytes32","name":"tokenIn","type":"bytes32"},{"internalType":"uint8","name":"protocolBps","type":"uint8"},{"internalType":"bytes32","name":"customPayloadHash","type":"bytes32"}],"internalType":"struct ExtraParams","name":"extraParams","type":"tuple"},{"internalType":"bytes32","name":"recipient","type":"bytes32"},{"internalType":"bool","name":"batch","type":"bool"}],"internalType":"struct FulfillHelper.FulfillParams","name":"params","type":"tuple"},{"internalType":"bytes32","name":"orderHash","type":"bytes32"}],"name":"fulfillWithEth","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"guardian","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"mayanProtocols","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nextGuardian","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address payable","name":"to","type":"address"}],"name":"rescueEth","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"to","type":"address"}],"name":"rescueToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"mayanProtocol","type":"address"},{"internalType":"bool","name":"enabled","type":"bool"}],"name":"setMayanProtocol","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"swapProtocol","type":"address"},{"internalType":"bool","name":"enabled","type":"bool"}],"name":"setSwapProtocol","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"swapProtocols","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

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

-----Decoded View---------------
Arg [0] : _guardian (address): 0x933E3922E04d47a466e60A20e486b372B64F1Ea8
Arg [1] : _swapProtocols (address[]): 0x529863940BF6065d8C122a550c2ff37c1cfeFa16,0x0000000000001fF3684f28c67538d4D072C22734
Arg [2] : _mayanProtocols (address[]): 0xC38e4e6A15593f908255214653d3D947CA1c2338,0x3b16055bba95A36925b02819A07DE8ff1F35476F

-----Encoded View---------------
9 Constructor Arguments found :
Arg [0] : 000000000000000000000000933e3922e04d47a466e60a20e486b372b64f1ea8
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [2] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000002
Arg [4] : 000000000000000000000000529863940bf6065d8c122a550c2ff37c1cfefa16
Arg [5] : 0000000000000000000000000000000000001ff3684f28c67538d4d072c22734
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000002
Arg [7] : 000000000000000000000000c38e4e6a15593f908255214653d3d947ca1c2338
Arg [8] : 0000000000000000000000003b16055bba95a36925b02819a07de8ff1f35476f


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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.