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Contract

0x045808285C69014Beb9f70447155A4c55376fc06

Overview

ETH Balance

0 ETH

ETH Value

$0.00

Multichain Info

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Transaction Hash
Method
Block
From
To
Value
Pay For Order72907992023-11-10 1:12:46215 days ago1699578766IN
0x04580828...55376fc06
10.1597931 ETH0.000164952.77
Pay For Order45002762023-08-15 15:12:23302 days ago1692112343IN
0x04580828...55376fc06
10.75047875 ETH0.000121472.04

Latest 3 internal transactions

Parent Transaction Hash Block From To Value
73111942023-11-10 10:15:18215 days ago1699611318
0x04580828...55376fc06
10.1597931 ETH
45223232023-08-16 10:51:12301 days ago1692183072
0x04580828...55376fc06
10.75047875 ETH
4078862023-05-25 9:53:30384 days ago1685008410  Contract Creation0 ETH
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Contract Source Code Verified (Exact Match)

Contract Name:
OrderPayable

Compiler Version
v0.8.17+commit.8df45f5f

Optimization Enabled:
Yes with 1000 runs

Other Settings:
default evmVersion
File 1 of 15 : OrderPayable.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;

import "../access-control-registry/AccessControlRegistryAdminnedWithManager.sol";
import "./interfaces/IOrderPayable.sol";
import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";

/// @title Contract used to pay for orders denoted in the native currency
/// @notice OrderPayable is managed by an account that designates order signers
/// and withdrawers. Only orders for which a signature is issued for by an
/// order signer can be paid for. Order signers have to be EOAs to be able to
/// issue ERC191 signatures. The manager is responsible with reverting unwanted
/// signatures (for example, if a compromised order signer issues an
/// underpriced order and the order is paid for, the manager should revoke the
/// role, refund the payment and consider the order void).
/// Withdrawers can be EOAs or contracts. For example, one can implement a
/// withdrawer contract that withdraws funds automatically to a Funder
/// contract.
contract OrderPayable is
    AccessControlRegistryAdminnedWithManager,
    IOrderPayable
{
    using ECDSA for bytes32;

    /// @notice Order signer role description
    string public constant override ORDER_SIGNER_ROLE_DESCRIPTION =
        "Order signer";

    /// @notice Withdrawer role description
    string public constant override WITHDRAWER_ROLE_DESCRIPTION = "Withdrawer";

    /// @notice Order signer role
    bytes32 public immutable override orderSignerRole;

    /// @notice Withdrawer role
    bytes32 public immutable override withdrawerRole;

    /// @notice Returns if the order with ID is paid for
    mapping(bytes32 => bool) public override orderIdToPaymentStatus;

    /// @param _accessControlRegistry AccessControlRegistry contract address
    /// @param _adminRoleDescription Admin role description
    /// @param _manager Manager address
    constructor(
        address _accessControlRegistry,
        string memory _adminRoleDescription,
        address _manager
    )
        AccessControlRegistryAdminnedWithManager(
            _accessControlRegistry,
            _adminRoleDescription,
            _manager
        )
    {
        orderSignerRole = _deriveRole(
            _deriveAdminRole(manager),
            ORDER_SIGNER_ROLE_DESCRIPTION
        );
        withdrawerRole = _deriveRole(
            _deriveAdminRole(manager),
            WITHDRAWER_ROLE_DESCRIPTION
        );
    }

    /// @notice Called with value to pay for an order
    /// @dev The sender must set `msg.value` to cover the exact amount
    /// specified by the order.
    /// Input arguments are provided in encoded form to improve the UX for
    /// using ABI-based, automatically generated contract GUIs such as ones
    /// from Safe and Etherscan. Given that OrderPayable is verified, the user
    /// is only required to provide the OrderPayable address, select
    /// `payForOrder()`, copy-paste `encodedData` (instead of 4 separate
    /// fields) and enter `msg.value`.
    /// @param encodedData The order ID, expiration timestamp, order signer
    /// address and signature in ABI-encoded form
    function payForOrder(bytes calldata encodedData) external payable override {
        // Do not care if `encodedData` has trailing data
        (
            bytes32 orderId,
            uint256 expirationTimestamp,
            address orderSigner,
            bytes memory signature
        ) = abi.decode(encodedData, (bytes32, uint256, address, bytes));
        // We do not allow invalid orders even if they are signed by an
        // authorized order signer
        require(orderId != bytes32(0), "Order ID zero");
        require(expirationTimestamp > block.timestamp, "Order expired");
        require(
            orderSigner == manager ||
                IAccessControlRegistry(accessControlRegistry).hasRole(
                    orderSignerRole,
                    orderSigner
                ),
            "Invalid order signer"
        );
        require(msg.value > 0, "Payment amount zero");
        require(!orderIdToPaymentStatus[orderId], "Order already paid for");
        require(
            (
                keccak256(
                    abi.encodePacked(
                        block.chainid,
                        address(this),
                        orderId,
                        expirationTimestamp,
                        msg.value
                    )
                ).toEthSignedMessageHash()
            ).recover(signature) == orderSigner,
            "Signature mismatch"
        );
        orderIdToPaymentStatus[orderId] = true;
        emit PaidForOrder(
            orderId,
            expirationTimestamp,
            orderSigner,
            msg.value,
            msg.sender
        );
    }

    /// @notice Called by a withdrawer to withdraw the entire balance of
    /// OrderPayable to `recipient`
    /// @param recipient Recipient address
    /// @return amount Withdrawal amount
    function withdraw(
        address recipient
    ) external override returns (uint256 amount) {
        require(
            msg.sender == manager ||
                IAccessControlRegistry(accessControlRegistry).hasRole(
                    withdrawerRole,
                    msg.sender
                ),
            "Sender cannot withdraw"
        );
        amount = address(this).balance;
        emit Withdrew(recipient, amount);
        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Transfer unsuccessful");
    }
}

File 2 of 15 : IAccessControl.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)

pragma solidity ^0.8.0;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) external;
}

File 3 of 15 : ECDSA.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;

import "../Strings.sol";

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV // Deprecated in v4.8
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            /// @solidity memory-safe-assembly
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address, RecoverError) {
        bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
        uint8 v = uint8((uint256(vs) >> 255) + 27);
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from `s`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
    }
}

File 4 of 15 : Math.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(
        uint256 x,
        uint256 y,
        uint256 denominator
    ) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1);

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(
        uint256 x,
        uint256 y,
        uint256 denominator,
        Rounding rounding
    ) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10**64) {
                value /= 10**64;
                result += 64;
            }
            if (value >= 10**32) {
                value /= 10**32;
                result += 32;
            }
            if (value >= 10**16) {
                value /= 10**16;
                result += 16;
            }
            if (value >= 10**8) {
                value /= 10**8;
                result += 8;
            }
            if (value >= 10**4) {
                value /= 10**4;
                result += 4;
            }
            if (value >= 10**2) {
                value /= 10**2;
                result += 2;
            }
            if (value >= 10**1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);
        }
    }
}

File 5 of 15 : Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

import "./math/Math.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }
}

File 6 of 15 : AccessControlRegistryAdminned.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "../utils/SelfMulticall.sol";
import "./RoleDeriver.sol";
import "./interfaces/IAccessControlRegistryAdminned.sol";
import "./interfaces/IAccessControlRegistry.sol";

/// @title Contract to be inherited by contracts whose adminship functionality
/// will be implemented using AccessControlRegistry
contract AccessControlRegistryAdminned is
    SelfMulticall,
    RoleDeriver,
    IAccessControlRegistryAdminned
{
    /// @notice AccessControlRegistry contract address
    address public immutable override accessControlRegistry;

    /// @notice Admin role description
    string public override adminRoleDescription;

    bytes32 internal immutable adminRoleDescriptionHash;

    /// @dev Contracts deployed with the same admin role descriptions will have
    /// the same roles, meaning that granting an account a role will authorize
    /// it in multiple contracts. Unless you want your deployed contract to
    /// share the role configuration of another contract, use a unique admin
    /// role description.
    /// @param _accessControlRegistry AccessControlRegistry contract address
    /// @param _adminRoleDescription Admin role description
    constructor(
        address _accessControlRegistry,
        string memory _adminRoleDescription
    ) {
        require(_accessControlRegistry != address(0), "ACR address zero");
        require(
            bytes(_adminRoleDescription).length > 0,
            "Admin role description empty"
        );
        accessControlRegistry = _accessControlRegistry;
        adminRoleDescription = _adminRoleDescription;
        adminRoleDescriptionHash = keccak256(
            abi.encodePacked(_adminRoleDescription)
        );
    }

    /// @notice Derives the admin role for the specific manager address
    /// @param manager Manager address
    /// @return adminRole Admin role
    function _deriveAdminRole(
        address manager
    ) internal view returns (bytes32 adminRole) {
        adminRole = _deriveRole(
            _deriveRootRole(manager),
            adminRoleDescriptionHash
        );
    }
}

File 7 of 15 : AccessControlRegistryAdminnedWithManager.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "./AccessControlRegistryAdminned.sol";
import "./interfaces/IAccessControlRegistryAdminnedWithManager.sol";

/// @title Contract to be inherited by contracts with manager whose adminship
/// functionality will be implemented using AccessControlRegistry
/// @notice The manager address here is expected to belong to an
/// AccessControlRegistry user that is a multisig/DAO
contract AccessControlRegistryAdminnedWithManager is
    AccessControlRegistryAdminned,
    IAccessControlRegistryAdminnedWithManager
{
    /// @notice Address of the manager that manages the related
    /// AccessControlRegistry roles
    /// @dev The mutability of the manager role can be implemented by
    /// designating an OwnableCallForwarder contract as the manager. The
    /// ownership of this contract can then be transferred, effectively
    /// transferring managership.
    address public immutable override manager;

    /// @notice Admin role
    /// @dev Since `manager` is immutable, so is `adminRole`
    bytes32 public immutable override adminRole;

    /// @param _accessControlRegistry AccessControlRegistry contract address
    /// @param _adminRoleDescription Admin role description
    /// @param _manager Manager address
    constructor(
        address _accessControlRegistry,
        string memory _adminRoleDescription,
        address _manager
    )
        AccessControlRegistryAdminned(
            _accessControlRegistry,
            _adminRoleDescription
        )
    {
        require(_manager != address(0), "Manager address zero");
        manager = _manager;
        adminRole = _deriveAdminRole(_manager);
    }
}

File 8 of 15 : IAccessControlRegistry.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/access/IAccessControl.sol";
import "../../utils/interfaces/IExpiringMetaTxForwarder.sol";
import "../../utils/interfaces/ISelfMulticall.sol";

interface IAccessControlRegistry is
    IAccessControl,
    IExpiringMetaTxForwarder,
    ISelfMulticall
{
    event InitializedManager(
        bytes32 indexed rootRole,
        address indexed manager,
        address sender
    );

    event InitializedRole(
        bytes32 indexed role,
        bytes32 indexed adminRole,
        string description,
        address sender
    );

    function initializeManager(address manager) external;

    function initializeRoleAndGrantToSender(
        bytes32 adminRole,
        string calldata description
    ) external returns (bytes32 role);
}

File 9 of 15 : IAccessControlRegistryAdminned.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "../../utils/interfaces/ISelfMulticall.sol";

interface IAccessControlRegistryAdminned is ISelfMulticall {
    function accessControlRegistry() external view returns (address);

    function adminRoleDescription() external view returns (string memory);
}

File 10 of 15 : IAccessControlRegistryAdminnedWithManager.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "./IAccessControlRegistryAdminned.sol";

interface IAccessControlRegistryAdminnedWithManager is
    IAccessControlRegistryAdminned
{
    function manager() external view returns (address);

    function adminRole() external view returns (bytes32);
}

File 11 of 15 : RoleDeriver.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/// @title Contract to be inherited by contracts that will derive
/// AccessControlRegistry roles
/// @notice If a contract interfaces with AccessControlRegistry and needs to
/// derive roles, it should inherit this contract instead of re-implementing
/// the logic
contract RoleDeriver {
    /// @notice Derives the root role of the manager
    /// @param manager Manager address
    /// @return rootRole Root role
    function _deriveRootRole(
        address manager
    ) internal pure returns (bytes32 rootRole) {
        rootRole = keccak256(abi.encodePacked(manager));
    }

    /// @notice Derives the role using its admin role and description
    /// @dev This implies that roles adminned by the same role cannot have the
    /// same description
    /// @param adminRole Admin role
    /// @param description Human-readable description of the role
    /// @return role Role
    function _deriveRole(
        bytes32 adminRole,
        string memory description
    ) internal pure returns (bytes32 role) {
        role = _deriveRole(adminRole, keccak256(abi.encodePacked(description)));
    }

    /// @notice Derives the role using its admin role and description hash
    /// @dev This implies that roles adminned by the same role cannot have the
    /// same description
    /// @param adminRole Admin role
    /// @param descriptionHash Hash of the human-readable description of the
    /// role
    /// @return role Role
    function _deriveRole(
        bytes32 adminRole,
        bytes32 descriptionHash
    ) internal pure returns (bytes32 role) {
        role = keccak256(abi.encodePacked(adminRole, descriptionHash));
    }
}

File 12 of 15 : IExpiringMetaTxForwarder.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IExpiringMetaTxForwarder {
    event ExecutedMetaTx(bytes32 indexed metaTxHash);

    event CanceledMetaTx(bytes32 indexed metaTxHash);

    struct ExpiringMetaTx {
        address from;
        address to;
        bytes data;
        uint256 expirationTimestamp;
    }

    function execute(
        ExpiringMetaTx calldata metaTx,
        bytes calldata signature
    ) external returns (bytes memory returndata);

    function cancel(ExpiringMetaTx calldata metaTx) external;

    function metaTxWithHashIsExecutedOrCanceled(
        bytes32 metaTxHash
    ) external returns (bool);
}

File 13 of 15 : IOrderPayable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IOrderPayable {
    event PaidForOrder(
        bytes32 indexed orderId,
        uint256 expirationTimestamp,
        address orderSigner,
        uint256 amount,
        address sender
    );

    event Withdrew(address recipient, uint256 amount);

    function payForOrder(bytes calldata encodedData) external payable;

    function withdraw(address recipient) external returns (uint256 amount);

    // solhint-disable-next-line func-name-mixedcase
    function ORDER_SIGNER_ROLE_DESCRIPTION()
        external
        view
        returns (string memory);

    // solhint-disable-next-line func-name-mixedcase
    function WITHDRAWER_ROLE_DESCRIPTION()
        external
        view
        returns (string memory);

    function orderSignerRole() external view returns (bytes32);

    function withdrawerRole() external view returns (bytes32);

    function orderIdToPaymentStatus(
        bytes32 orderId
    ) external view returns (bool paymentStatus);
}

File 14 of 15 : ISelfMulticall.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface ISelfMulticall {
    function multicall(
        bytes[] calldata data
    ) external returns (bytes[] memory returndata);

    function tryMulticall(
        bytes[] calldata data
    ) external returns (bool[] memory successes, bytes[] memory returndata);
}

File 15 of 15 : SelfMulticall.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "./interfaces/ISelfMulticall.sol";

/// @title Contract that enables calls to the inheriting contract to be batched
/// @notice Implements two ways of batching, one requires none of the calls to
/// revert and the other tolerates individual calls reverting
/// @dev This implementation uses delegatecall for individual function calls.
/// Since delegatecall is a message call, it can only be made to functions that
/// are externally visible. This means that a contract cannot multicall its own
/// functions that use internal/private visibility modifiers.
/// Refer to OpenZeppelin's Multicall.sol for a similar implementation.
contract SelfMulticall is ISelfMulticall {
    /// @notice Batches calls to the inheriting contract and reverts as soon as
    /// one of the batched calls reverts
    /// @param data Array of calldata of batched calls
    /// @return returndata Array of returndata of batched calls
    function multicall(
        bytes[] calldata data
    ) external override returns (bytes[] memory returndata) {
        uint256 callCount = data.length;
        returndata = new bytes[](callCount);
        for (uint256 ind = 0; ind < callCount; ) {
            bool success;
            // solhint-disable-next-line avoid-low-level-calls
            (success, returndata[ind]) = address(this).delegatecall(data[ind]);
            if (!success) {
                bytes memory returndataWithRevertData = returndata[ind];
                if (returndataWithRevertData.length > 0) {
                    // Adapted from OpenZeppelin's Address.sol
                    // solhint-disable-next-line no-inline-assembly
                    assembly {
                        let returndata_size := mload(returndataWithRevertData)
                        revert(
                            add(32, returndataWithRevertData),
                            returndata_size
                        )
                    }
                } else {
                    revert("Multicall: No revert string");
                }
            }
            unchecked {
                ind++;
            }
        }
    }

    /// @notice Batches calls to the inheriting contract but does not revert if
    /// any of the batched calls reverts
    /// @param data Array of calldata of batched calls
    /// @return successes Array of success conditions of batched calls
    /// @return returndata Array of returndata of batched calls
    function tryMulticall(
        bytes[] calldata data
    )
        external
        override
        returns (bool[] memory successes, bytes[] memory returndata)
    {
        uint256 callCount = data.length;
        successes = new bool[](callCount);
        returndata = new bytes[](callCount);
        for (uint256 ind = 0; ind < callCount; ) {
            // solhint-disable-next-line avoid-low-level-calls
            (successes[ind], returndata[ind]) = address(this).delegatecall(
                data[ind]
            );
            unchecked {
                ind++;
            }
        }
    }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_accessControlRegistry","type":"address"},{"internalType":"string","name":"_adminRoleDescription","type":"string"},{"internalType":"address","name":"_manager","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"orderId","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"expirationTimestamp","type":"uint256"},{"indexed":false,"internalType":"address","name":"orderSigner","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"address","name":"sender","type":"address"}],"name":"PaidForOrder","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Withdrew","type":"event"},{"inputs":[],"name":"ORDER_SIGNER_ROLE_DESCRIPTION","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"WITHDRAWER_ROLE_DESCRIPTION","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"accessControlRegistry","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"adminRole","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"adminRoleDescription","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"manager","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes[]","name":"data","type":"bytes[]"}],"name":"multicall","outputs":[{"internalType":"bytes[]","name":"returndata","type":"bytes[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"orderIdToPaymentStatus","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"orderSignerRole","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"encodedData","type":"bytes"}],"name":"payForOrder","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes[]","name":"data","type":"bytes[]"}],"name":"tryMulticall","outputs":[{"internalType":"bool[]","name":"successes","type":"bool[]"},{"internalType":"bytes[]","name":"returndata","type":"bytes[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"}],"name":"withdraw","outputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdrawerRole","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"}]

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

00000000000000000000000012d82f38a038a71b0843bd3256cd1e0a1de74834000000000000000000000000000000000000000000000000000000000000006000000000000000000000000081bc85f329cdb28936fbb239f734ae495121f9a600000000000000000000000000000000000000000000000000000000000000204f7264657250617961626c652061646d696e202841504933204d61726b657429

-----Decoded View---------------
Arg [0] : _accessControlRegistry (address): 0x12D82f38a038A71b0843BD3256CD1E0A1De74834
Arg [1] : _adminRoleDescription (string): OrderPayable admin (API3 Market)
Arg [2] : _manager (address): 0x81bc85f329cDB28936FbB239f734AE495121F9A6

-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 00000000000000000000000012d82f38a038a71b0843bd3256cd1e0a1de74834
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [2] : 00000000000000000000000081bc85f329cdb28936fbb239f734ae495121f9a6
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000020
Arg [4] : 4f7264657250617961626c652061646d696e202841504933204d61726b657429


Block Transaction Gas Used Reward
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Transaction Hash Block Value Eth2 PubKey Valid
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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.