Contract

0x0000000000daB4A563819e8fd93dbA3b25BC3495

Source Code

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0x73CcaD6f...814d65399 at txn 0xde2a595708f60f0a11e155abdb298951987aef08650fe680d578ee89881c6c42

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Contract Source Code Verified (Exact Match)

Contract Name:

StandardPolicyERC721

Compiler Version

v0.8.17+commit.8df45f5f

Optimization Enabled:

Yes with 800 runs

Other Settings:

default evmVersion

Contract Source Code (Solidity Standard Json-Input format)

IDE

File 1 of 3 : StandardPolicyERC721.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;

import {Order, AssetType} from "../lib/OrderStructs.sol";
import {IMatchingPolicy} from "../interfaces/IMatchingPolicy.sol";

/**
 * @title StandardPolicyERC721
 * @dev Policy for matching orders at a fixed price for a specific ERC721 tokenId (requires oracle authorization on both orders)
 */
contract StandardPolicyERC721 is IMatchingPolicy {
    function canMatchMakerAsk(Order calldata makerAsk, Order calldata takerBid)
        external
        pure
        override
        returns (
            bool,
            uint256,
            uint256,
            uint256,
            AssetType
        )
    {
        return (
            (makerAsk.side != takerBid.side) &&
            (makerAsk.paymentToken == takerBid.paymentToken) &&
            (makerAsk.collection == takerBid.collection) &&
            (makerAsk.tokenId == takerBid.tokenId) &&
            (makerAsk.extraParams.length > 0 && makerAsk.extraParams[0] == "\x01") &&
            (takerBid.extraParams.length > 0 && takerBid.extraParams[0] == "\x01") &&
            (makerAsk.amount == 1) &&
            (takerBid.amount == 1) &&
            (makerAsk.matchingPolicy == takerBid.matchingPolicy) &&
            (makerAsk.price == takerBid.price),
            makerAsk.price,
            makerAsk.tokenId,
            1,
            AssetType.ERC721
        );
    }

    function canMatchMakerBid(Order calldata makerBid, Order calldata takerAsk)
        external
        pure
        override
        returns (
            bool,
            uint256,
            uint256,
            uint256,
            AssetType
        )
    {
        return (
            (makerBid.side != takerAsk.side) &&
            (makerBid.paymentToken == takerAsk.paymentToken) &&
            (makerBid.collection == takerAsk.collection) &&
            (makerBid.tokenId == takerAsk.tokenId) &&
            (makerBid.extraParams.length > 0 && makerBid.extraParams[0] == "\x01") &&
            (takerAsk.extraParams.length > 0 && takerAsk.extraParams[0] == "\x01") &&
            (makerBid.amount == 1) &&
            (takerAsk.amount == 1) &&
            (makerBid.matchingPolicy == takerAsk.matchingPolicy) &&
            (makerBid.price == takerAsk.price),
            makerBid.price,
            makerBid.tokenId,
            1,
            AssetType.ERC721
        );
    }
}

File 2 of 3 : OrderStructs.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;

enum Side { Buy, Sell }
enum SignatureVersion { Single, Bulk }
enum AssetType { ERC721, ERC1155 }

struct Fee {
    uint16 rate;
    address payable recipient;
}

struct Order {
    address trader;
    Side side;
    address matchingPolicy;
    address collection;
    uint256 tokenId;
    uint256 amount;
    address paymentToken;
    uint256 price;
    uint256 listingTime;
    /* Order expiration timestamp - 0 for oracle cancellations. */
    uint256 expirationTime;
    Fee[] fees;
    uint256 salt;
    bytes extraParams;
}

struct Input {
    Order order;
    uint8 v;
    bytes32 r;
    bytes32 s;
    bytes extraSignature;
    SignatureVersion signatureVersion;
    uint256 blockNumber;
}

struct Execution {
  Input sell;
  Input buy;
}

File 3 of 3 : IMatchingPolicy.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;

import {Order, AssetType} from "../lib/OrderStructs.sol";

interface IMatchingPolicy {
    function canMatchMakerAsk(Order calldata makerAsk, Order calldata takerBid)
        external
        view
        returns (
            bool,
            uint256,
            uint256,
            uint256,
            AssetType
        );

    function canMatchMakerBid(Order calldata makerBid, Order calldata takerAsk)
        external
        view
        returns (
            bool,
            uint256,
            uint256,
            uint256,
            AssetType
        );
}

Settings

{
  "metadata": {
    "bytecodeHash": "none"
  },
  "optimizer": {
    "enabled": true,
    "runs": 800
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract Security Audit

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Contract ABI

[{"inputs":[{"components":[{"internalType":"address","name":"trader","type":"address"},{"internalType":"enum Side","name":"side","type":"uint8"},{"internalType":"address","name":"matchingPolicy","type":"address"},{"internalType":"address","name":"collection","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"paymentToken","type":"address"},{"internalType":"uint256","name":"price","type":"uint256"},{"internalType":"uint256","name":"listingTime","type":"uint256"},{"internalType":"uint256","name":"expirationTime","type":"uint256"},{"components":[{"internalType":"uint16","name":"rate","type":"uint16"},{"internalType":"address payable","name":"recipient","type":"address"}],"internalType":"struct Fee[]","name":"fees","type":"tuple[]"},{"internalType":"uint256","name":"salt","type":"uint256"},{"internalType":"bytes","name":"extraParams","type":"bytes"}],"internalType":"struct Order","name":"makerAsk","type":"tuple"},{"components":[{"internalType":"address","name":"trader","type":"address"},{"internalType":"enum Side","name":"side","type":"uint8"},{"internalType":"address","name":"matchingPolicy","type":"address"},{"internalType":"address","name":"collection","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"paymentToken","type":"address"},{"internalType":"uint256","name":"price","type":"uint256"},{"internalType":"uint256","name":"listingTime","type":"uint256"},{"internalType":"uint256","name":"expirationTime","type":"uint256"},{"components":[{"internalType":"uint16","name":"rate","type":"uint16"},{"internalType":"address payable","name":"recipient","type":"address"}],"internalType":"struct Fee[]","name":"fees","type":"tuple[]"},{"internalType":"uint256","name":"salt","type":"uint256"},{"internalType":"bytes","name":"extraParams","type":"bytes"}],"internalType":"struct Order","name":"takerBid","type":"tuple"}],"name":"canMatchMakerAsk","outputs":[{"internalType":"bool","name":"","type":"bool"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"enum AssetType","name":"","type":"uint8"}],"stateMutability":"pure","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"trader","type":"address"},{"internalType":"enum Side","name":"side","type":"uint8"},{"internalType":"address","name":"matchingPolicy","type":"address"},{"internalType":"address","name":"collection","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"paymentToken","type":"address"},{"internalType":"uint256","name":"price","type":"uint256"},{"internalType":"uint256","name":"listingTime","type":"uint256"},{"internalType":"uint256","name":"expirationTime","type":"uint256"},{"components":[{"internalType":"uint16","name":"rate","type":"uint16"},{"internalType":"address payable","name":"recipient","type":"address"}],"internalType":"struct Fee[]","name":"fees","type":"tuple[]"},{"internalType":"uint256","name":"salt","type":"uint256"},{"internalType":"bytes","name":"extraParams","type":"bytes"}],"internalType":"struct Order","name":"makerBid","type":"tuple"},{"components":[{"internalType":"address","name":"trader","type":"address"},{"internalType":"enum Side","name":"side","type":"uint8"},{"internalType":"address","name":"matchingPolicy","type":"address"},{"internalType":"address","name":"collection","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"paymentToken","type":"address"},{"internalType":"uint256","name":"price","type":"uint256"},{"internalType":"uint256","name":"listingTime","type":"uint256"},{"internalType":"uint256","name":"expirationTime","type":"uint256"},{"components":[{"internalType":"uint16","name":"rate","type":"uint16"},{"internalType":"address payable","name":"recipient","type":"address"}],"internalType":"struct Fee[]","name":"fees","type":"tuple[]"},{"internalType":"uint256","name":"salt","type":"uint256"},{"internalType":"bytes","name":"extraParams","type":"bytes"}],"internalType":"struct Order","name":"takerAsk","type":"tuple"}],"name":"canMatchMakerBid","outputs":[{"internalType":"bool","name":"","type":"bool"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"enum AssetType","name":"","type":"uint8"}],"stateMutability":"pure","type":"function"}]

Contract Creation Code

Decompile Bytecode Switch to Opcodes View

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Deployed Bytecode

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