false
false

Contract Address Details

0xc5bbd75789bd007784a0046094d19acea1a79eb1

Contract Name
ExchangeMetaV2
Creator
0xfb571f–ff18e4 at 0xb21627–eea71e
Balance
0 Xai
Tokens
Fetching tokens...
Transactions
0 Transactions
Transfers
0 Transfers
Gas Used
Fetching gas used...
Last Balance Update
9442056
Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
Contract name:
ExchangeMetaV2




Optimization enabled
true
Compiler version
v0.7.6+commit.7338295f




Optimization runs
200
EVM Version
istanbul




Verified at
2024-02-09T06:48:56.159214Z

@rarible/exchange-v2/contracts/ExchangeMetaV2.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;
pragma abicoder v2;

import "./ExchangeV2Core.sol";
import "@rarible/meta-tx/contracts/EIP712MetaTransaction.sol";
import "@rarible/transfer-manager/contracts/RaribleTransferManager.sol";

contract ExchangeMetaV2 is ExchangeV2Core, RaribleTransferManager, EIP712MetaTransaction {
    function __ExchangeV2_init(
        address _transferProxy,
        address _erc20TransferProxy,
        uint newProtocolFee,
        address newDefaultFeeReceiver,
        IRoyaltiesProvider newRoyaltiesProvider
    ) external initializer {
        __Context_init_unchained();
        __Ownable_init_unchained();
        __OrderValidator_init_unchained();
        __MetaTransaction_init_unchained("ExchangeMetaV2", "1");
        __TransferExecutor_init_unchained(_transferProxy, _erc20TransferProxy);
        __RaribleTransferManager_init_unchained(newProtocolFee, newDefaultFeeReceiver, newRoyaltiesProvider);
    }

    function _msgSender() internal view virtual override(ContextUpgradeable, EIP712MetaTransaction) returns (address payable) {
        return super._msgSender();
    }

}
        

@rarible/lib-signature/contracts/IERC1271.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;

interface IERC1271 {

    /**
     * @dev Should return whether the signature provided is valid for the provided data
     * @param _hash Hash of the data signed on the behalf of address(this)
     * @param _signature Signature byte array associated with _data
     *
     * MUST return the bytes4 magic value 0x1626ba7e when function passes.
     * MUST NOT modify state (using STATICCALL for solc < 0.5, view modifier for solc > 0.5)
     * MUST allow external calls
     */
    function isValidSignature(bytes32 _hash, bytes calldata _signature) virtual external view returns (bytes4 magicValue);
}
          

@rarible/exchange-interfaces/contracts/IRoyaltiesProvider.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;
pragma abicoder v2;

import "@rarible/lib-part/contracts/LibPart.sol";

interface IRoyaltiesProvider {
    function getRoyalties(address token, uint tokenId) external returns (LibPart.Part[] memory);
}
          

@openzeppelin/contracts-upgradeable/introspection/IERC165Upgradeable.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165Upgradeable {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
          

@rarible/exchange-interfaces/contracts/INftTransferProxy.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.9 <0.8.0;
pragma abicoder v2;

import "@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC1155/IERC1155Upgradeable.sol";

interface INftTransferProxy {
    function erc721safeTransferFrom(IERC721Upgradeable token, address from, address to, uint256 tokenId) external;

    function erc1155safeTransferFrom(IERC1155Upgradeable token, address from, address to, uint256 id, uint256 value, bytes calldata data) external;
}
          

@rarible/exchange-v2/contracts/libraries/LibOrder.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;

import "@rarible/lib-asset/contracts/LibAsset.sol";

import "./LibMath.sol";
import "./LibOrderDataV3.sol";
import "./LibOrderDataV2.sol";
import "./LibOrderDataV1.sol";

library LibOrder {
    using SafeMathUpgradeable for uint;

    bytes32 constant ORDER_TYPEHASH = keccak256(
        "Order(address maker,Asset makeAsset,address taker,Asset takeAsset,uint256 salt,uint256 start,uint256 end,bytes4 dataType,bytes data)Asset(AssetType assetType,uint256 value)AssetType(bytes4 assetClass,bytes data)"
    );

    bytes4 constant DEFAULT_ORDER_TYPE = 0xffffffff;

    struct Order {
        address maker;
        LibAsset.Asset makeAsset;
        address taker;
        LibAsset.Asset takeAsset;
        uint salt;
        uint start;
        uint end;
        bytes4 dataType;
        bytes data;
    }

    /**
     * @dev Calculate remaining make and take values of the order (after partial filling real make and take decrease)
     * @param order initial order to calculate remaining values for
     * @param fill current fill of the left order (0 if order is unfilled)
     * @param isMakeFill true if order fill is calculated from the make side, false if from the take side
     * @return makeValue remaining make value of the order. if fill = 0 then it's order's make value
     * @return takeValue remaining take value of the order. if fill = 0 then it's order's take value
     */
    function calculateRemaining(Order memory order, uint fill, bool isMakeFill) internal pure returns (uint makeValue, uint takeValue) {
        if (isMakeFill) {
            makeValue = order.makeAsset.value.sub(fill);
            takeValue = LibMath.safeGetPartialAmountFloor(order.takeAsset.value, order.makeAsset.value, makeValue);
        } else {
            takeValue = order.takeAsset.value.sub(fill);
            makeValue = LibMath.safeGetPartialAmountFloor(order.makeAsset.value, order.takeAsset.value, takeValue); 
        } 
    }

    function hashKey(Order memory order) internal pure returns (bytes32) {
        if (order.dataType == LibOrderDataV1.V1 || order.dataType == DEFAULT_ORDER_TYPE) {
            return keccak256(abi.encode(
                order.maker,
                LibAsset.hash(order.makeAsset.assetType),
                LibAsset.hash(order.takeAsset.assetType),
                order.salt
            ));
        } else {
            //order.data is in hash for V2, V3 and all new order
            return keccak256(abi.encode(
                order.maker,
                LibAsset.hash(order.makeAsset.assetType),
                LibAsset.hash(order.takeAsset.assetType),
                order.salt,
                order.data
            ));
        }
    }

    function hash(Order memory order) internal pure returns (bytes32) {
        return keccak256(abi.encode(
                ORDER_TYPEHASH,
                order.maker,
                LibAsset.hash(order.makeAsset),
                order.taker,
                LibAsset.hash(order.takeAsset),
                order.salt,
                order.start,
                order.end,
                order.dataType,
                keccak256(order.data)
            ));
    }

    function validateOrderTime(LibOrder.Order memory order) internal view {
        require(order.start == 0 || order.start < block.timestamp, "Order start validation failed");
        require(order.end == 0 || order.end > block.timestamp, "Order end validation failed");
    }
}
          

@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library AddressUpgradeable {
    /**
     * @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
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }

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

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

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

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

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

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

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: value }(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

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

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

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.staticcall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}
          

@rarible/transfer-manager/contracts/TransferExecutor.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;
pragma abicoder v2;

import "@rarible/exchange-interfaces/contracts/ITransferProxy.sol";
import "@rarible/exchange-interfaces/contracts/INftTransferProxy.sol";
import "@rarible/exchange-interfaces/contracts/IERC20TransferProxy.sol";
import "./interfaces/ITransferExecutor.sol";

import "@openzeppelin/contracts-upgradeable/proxy/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";

import "./lib/LibTransfer.sol";

abstract contract TransferExecutor is Initializable, OwnableUpgradeable, ITransferExecutor {
    using LibTransfer for address;

    mapping (bytes4 => address) internal proxies;

    event ProxyChange(bytes4 indexed assetType, address proxy);

    function __TransferExecutor_init_unchained(address transferProxy, address erc20TransferProxy) internal { 
        proxies[LibAsset.ERC20_ASSET_CLASS] = address(erc20TransferProxy);
        proxies[LibAsset.ERC721_ASSET_CLASS] = address(transferProxy);
        proxies[LibAsset.ERC1155_ASSET_CLASS] = address(transferProxy);
    }

    function setTransferProxy(bytes4 assetType, address proxy) external onlyOwner {
        proxies[assetType] = proxy;
        emit ProxyChange(assetType, proxy);
    }

    function transfer(
        LibAsset.Asset memory asset,
        address from,
        address to,
        address proxy
    ) internal override {
        if (asset.assetType.assetClass == LibAsset.ERC721_ASSET_CLASS) {
            //not using transfer proxy when transfering from this contract
            (address token, uint tokenId) = abi.decode(asset.assetType.data, (address, uint256));
            require(asset.value == 1, "erc721 value error");
            if (from == address(this)){
                IERC721Upgradeable(token).safeTransferFrom(address(this), to, tokenId);
            } else {
                INftTransferProxy(proxy).erc721safeTransferFrom(IERC721Upgradeable(token), from, to, tokenId);
            }
        } else if (asset.assetType.assetClass == LibAsset.ERC20_ASSET_CLASS) {
            //not using transfer proxy when transfering from this contract
            (address token) = abi.decode(asset.assetType.data, (address));
            if (from == address(this)){
                require(IERC20Upgradeable(token).transfer(to, asset.value), "erc20 transfer failed");
            } else {
                IERC20TransferProxy(proxy).erc20safeTransferFrom(IERC20Upgradeable(token), from, to, asset.value);
            }
        } else if (asset.assetType.assetClass == LibAsset.ERC1155_ASSET_CLASS) {
            //not using transfer proxy when transfering from this contract
            (address token, uint tokenId) = abi.decode(asset.assetType.data, (address, uint256));
            if (from == address(this)){
                IERC1155Upgradeable(token).safeTransferFrom(address(this), to, tokenId, asset.value, "");
            } else {
                INftTransferProxy(proxy).erc1155safeTransferFrom(IERC1155Upgradeable(token), from, to, tokenId, asset.value, "");  
            }
        } else if (asset.assetType.assetClass == LibAsset.ETH_ASSET_CLASS) {
            if (to != address(this)) {
                to.transferEth(asset.value);
            }
        } else {
            ITransferProxy(proxy).transfer(asset, from, to);
        }
    }
    
    uint256[49] private __gap;
}
          

@rarible/transfer-manager/contracts/interfaces/ITransferManager.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;
pragma abicoder v2;

import "../lib/LibDeal.sol";
import "./ITransferExecutor.sol";

abstract contract ITransferManager is ITransferExecutor {

    function doTransfers(
        LibDeal.DealSide memory left,
        LibDeal.DealSide memory right,
        LibFeeSide.FeeSide feeSide
    ) internal virtual returns (uint totalMakeValue, uint totalTakeValue);
}
          

@rarible/transfer-manager/contracts/lib/LibTransfer.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;

library LibTransfer {
    function transferEth(address to, uint value) internal {
        (bool success,) = to.call{ value: value }("");
        require(success, "transfer failed");
    }
}
          

@openzeppelin/contracts-upgradeable/proxy/Initializable.sol

// SPDX-License-Identifier: MIT

// solhint-disable-next-line compiler-version
pragma solidity >=0.4.24 <0.8.0;

import "../utils/AddressUpgradeable.sol";

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {UpgradeableProxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 */
abstract contract Initializable {

    /**
     * @dev Indicates that the contract has been initialized.
     */
    bool private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Modifier to protect an initializer function from being invoked twice.
     */
    modifier initializer() {
        require(_initializing || _isConstructor() || !_initialized, "Initializable: contract is already initialized");

        bool isTopLevelCall = !_initializing;
        if (isTopLevelCall) {
            _initializing = true;
            _initialized = true;
        }

        _;

        if (isTopLevelCall) {
            _initializing = false;
        }
    }

    /// @dev Returns true if and only if the function is running in the constructor
    function _isConstructor() private view returns (bool) {
        return !AddressUpgradeable.isContract(address(this));
    }
}
          

@rarible/lib-signature/contracts/LibSignature.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

library LibSignature {
    /**
     * @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)
    {
        // Check the signature length
        if (signature.length != 65) {
            revert("ECDSA: invalid signature length");
        }

        // Divide the signature in r, s and v variables
        bytes32 r;
        bytes32 s;
        uint8 v;

        // ecrecover takes the signature parameters, and the only way to get them
        // currently is to use assembly.
        // solhint-disable-next-line no-inline-assembly
        assembly {
            r := mload(add(signature, 0x20))
            s := mload(add(signature, 0x40))
            v := byte(0, mload(add(signature, 0x60)))
        }

        return recover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover-bytes32-bytes-} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address) {
        // 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 (281): 0 < s < secp256k1n ÷ 2 + 1, and for v in (282): 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.
        require(
            uint256(s) <=
                0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0,
            "ECDSA: invalid signature 's' value"
        );

        // If the signature is valid (and not malleable), return the signer address
        // v > 30 is a special case, we need to adjust hash with "\x19Ethereum Signed Message:\n32"
        // and v = v - 4
        address signer;
        if (v > 30) {
            require(
                v - 4 == 27 || v - 4 == 28,
                "ECDSA: invalid signature 'v' value"
            );
            signer = ecrecover(toEthSignedMessageHash(hash), v - 4, r, s);
        } else {
            require(v == 27 || v == 28, "ECDSA: invalid signature 'v' value");
            signer = ecrecover(hash, v, r, s);
        }

        require(signer != address(0), "ECDSA: invalid signature");

        return signer;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * replicates the behavior of the
     * https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_sign[`eth_sign`]
     * JSON-RPC method.
     *
     * 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)
            );
    }
}
          

@rarible/exchange-v2/contracts/libraries/LibFill.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;

import "./LibOrder.sol";

library LibFill {
    struct FillResult {
        uint leftValue;
        uint rightValue;
    }

    struct IsMakeFill {
        bool leftMake;
        bool rightMake;
    }

    /**
     * @dev Should return filled values
     * @param leftOrder left order
     * @param rightOrder right order
     * @param leftOrderFill current fill of the left order (0 if order is unfilled)
     * @param rightOrderFill current fill of the right order (0 if order is unfilled)
     * @param leftIsMakeFill true if left orders fill is calculated from the make side, false if from the take side
     * @param rightIsMakeFill true if right orders fill is calculated from the make side, false if from the take side
     * @return tuple representing fill of both assets
     */
    function fillOrder(LibOrder.Order memory leftOrder, LibOrder.Order memory rightOrder, uint leftOrderFill, uint rightOrderFill, bool leftIsMakeFill, bool rightIsMakeFill) internal pure returns (FillResult memory) {
        (uint leftMakeValue, uint leftTakeValue) = LibOrder.calculateRemaining(leftOrder, leftOrderFill, leftIsMakeFill);
        (uint rightMakeValue, uint rightTakeValue) = LibOrder.calculateRemaining(rightOrder, rightOrderFill, rightIsMakeFill);

        //We have 3 cases here:
        if (rightTakeValue > leftMakeValue || (rightTakeValue == leftMakeValue && leftMakeValue == 0)) { //1nd: left order should be fully filled
            return fillLeft(leftMakeValue, leftTakeValue, rightOrder.makeAsset.value, rightOrder.takeAsset.value);
        }//2st: right order should be fully filled or 3d: both should be fully filled if required values are the same
        return fillRight(leftOrder.makeAsset.value, leftOrder.takeAsset.value, rightMakeValue, rightTakeValue);
    }

    function fillRight(uint leftMakeValue, uint leftTakeValue, uint rightMakeValue, uint rightTakeValue) internal pure returns (FillResult memory result) {
        uint makerValue = LibMath.safeGetPartialAmountFloor(rightTakeValue, leftMakeValue, leftTakeValue);
        require(makerValue <= rightMakeValue, "fillRight: unable to fill");
        return FillResult(rightTakeValue, makerValue);
    }

    function fillLeft(uint leftMakeValue, uint leftTakeValue, uint rightMakeValue, uint rightTakeValue) internal pure returns (FillResult memory result) {
        uint rightTake = LibMath.safeGetPartialAmountFloor(leftTakeValue, rightMakeValue, rightTakeValue);
        require(rightTake <= leftMakeValue, "fillLeft: unable to fill");
        return FillResult(leftMakeValue, leftTakeValue);
    }
}
          

@rarible/exchange-v2/contracts/libraries/LibDirectTransfer.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;

import "@rarible/lib-asset/contracts/LibAsset.sol";

library LibDirectTransfer { //LibDirectTransfers
    /*All buy parameters need for create buyOrder and sellOrder*/
    struct Purchase {
        address sellOrderMaker; //
        uint256 sellOrderNftAmount;
        bytes4 nftAssetClass;
        bytes nftData;
        uint256 sellOrderPaymentAmount;
        address paymentToken;
        uint256 sellOrderSalt;
        uint sellOrderStart;
        uint sellOrderEnd;
        bytes4 sellOrderDataType;
        bytes sellOrderData;
        bytes sellOrderSignature;

        uint256 buyOrderPaymentAmount;
        uint256 buyOrderNftAmount;
        bytes buyOrderData;
    }

    /*All accept bid parameters need for create buyOrder and sellOrder*/
    struct AcceptBid {
        address bidMaker; //
        uint256 bidNftAmount;
        bytes4 nftAssetClass;
        bytes nftData;
        uint256 bidPaymentAmount;
        address paymentToken;
        uint256 bidSalt;
        uint bidStart;
        uint bidEnd;
        bytes4 bidDataType;
        bytes bidData;
        bytes bidSignature;

        uint256 sellOrderPaymentAmount;
        uint256 sellOrderNftAmount;
        bytes sellOrderData;
    }
}
          

@rarible/lib-bp/contracts/BpLibrary.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;

import "@openzeppelin/contracts-upgradeable/math/SafeMathUpgradeable.sol";

library BpLibrary {
    using SafeMathUpgradeable for uint;

    function bp(uint value, uint bpValue) internal pure returns (uint) {
        return value.mul(bpValue).div(10000);
    }
}
          

@openzeppelin/contracts-upgradeable/drafts/EIP712Upgradeable.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;
import "../proxy/Initializable.sol";

/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
 * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
 * they need in their contracts using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * _Available since v3.4._
 */
abstract contract EIP712Upgradeable is Initializable {
    /* solhint-disable var-name-mixedcase */
    bytes32 private _HASHED_NAME;
    bytes32 private _HASHED_VERSION;
    bytes32 private constant _TYPE_HASH = keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");
    /* solhint-enable var-name-mixedcase */

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    function __EIP712_init(string memory name, string memory version) internal initializer {
        __EIP712_init_unchained(name, version);
    }

    function __EIP712_init_unchained(string memory name, string memory version) internal initializer {
        bytes32 hashedName = keccak256(bytes(name));
        bytes32 hashedVersion = keccak256(bytes(version));
        _HASHED_NAME = hashedName;
        _HASHED_VERSION = hashedVersion;
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        return _buildDomainSeparator(_TYPE_HASH, _EIP712NameHash(), _EIP712VersionHash());
    }

    function _buildDomainSeparator(bytes32 typeHash, bytes32 name, bytes32 version) private view returns (bytes32) {
        return keccak256(
            abi.encode(
                typeHash,
                name,
                version,
                _getChainId(),
                address(this)
            )
        );
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x01", _domainSeparatorV4(), structHash));
    }

    function _getChainId() private view returns (uint256 chainId) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        // solhint-disable-next-line no-inline-assembly
        assembly {
            chainId := chainid()
        }
    }

    /**
     * @dev The hash of the name parameter for the EIP712 domain.
     *
     * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs
     * are a concern.
     */
    function _EIP712NameHash() internal virtual view returns (bytes32) {
        return _HASHED_NAME;
    }

    /**
     * @dev The hash of the version parameter for the EIP712 domain.
     *
     * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs
     * are a concern.
     */
    function _EIP712VersionHash() internal virtual view returns (bytes32) {
        return _HASHED_VERSION;
    }
    uint256[50] private __gap;
}
          

@rarible/lib-asset/contracts/LibAsset.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;

library LibAsset {
    bytes4 constant public ETH_ASSET_CLASS = bytes4(keccak256("ETH"));
    bytes4 constant public ERC20_ASSET_CLASS = bytes4(keccak256("ERC20"));
    bytes4 constant public ERC721_ASSET_CLASS = bytes4(keccak256("ERC721"));
    bytes4 constant public ERC1155_ASSET_CLASS = bytes4(keccak256("ERC1155"));
    bytes4 constant public COLLECTION = bytes4(keccak256("COLLECTION"));
    bytes4 constant public CRYPTO_PUNKS = bytes4(keccak256("CRYPTO_PUNKS"));

    bytes32 constant ASSET_TYPE_TYPEHASH = keccak256(
        "AssetType(bytes4 assetClass,bytes data)"
    );

    bytes32 constant ASSET_TYPEHASH = keccak256(
        "Asset(AssetType assetType,uint256 value)AssetType(bytes4 assetClass,bytes data)"
    );

    struct AssetType {
        bytes4 assetClass;
        bytes data;
    }

    struct Asset {
        AssetType assetType;
        uint value;
    }

    function hash(AssetType memory assetType) internal pure returns (bytes32) {
        return keccak256(abi.encode(
                ASSET_TYPE_TYPEHASH,
                assetType.assetClass,
                keccak256(assetType.data)
            ));
    }

    function hash(Asset memory asset) internal pure returns (bytes32) {
        return keccak256(abi.encode(
                ASSET_TYPEHASH,
                hash(asset.assetType),
                asset.value
            ));
    }

}
          

@openzeppelin/contracts-upgradeable/math/SafeMathUpgradeable.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMathUpgradeable {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        uint256 c = a + b;
        if (c < a) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b > a) return (false, 0);
        return (true, a - b);
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) return (true, 0);
        uint256 c = a * b;
        if (c / a != b) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a / b);
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a % b);
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "SafeMath: subtraction overflow");
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) return 0;
        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");
        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: division by zero");
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: modulo by zero");
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        return a - b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryDiv}.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a % b;
    }
}
          

@rarible/lazy-mint/contracts/erc-721/LibERC721LazyMint.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

import "@rarible/lib-part/contracts/LibPart.sol";

library LibERC721LazyMint {
    bytes4 constant public ERC721_LAZY_ASSET_CLASS = bytes4(keccak256("ERC721_LAZY"));
    bytes4 constant _INTERFACE_ID_MINT_AND_TRANSFER = 0x8486f69f;

    struct Mint721Data {
        uint tokenId;
        string tokenURI;
        LibPart.Part[] creators;
        LibPart.Part[] royalties;
        bytes[] signatures;
    }

    bytes32 public constant MINT_AND_TRANSFER_TYPEHASH = keccak256("Mint721(uint256 tokenId,string tokenURI,Part[] creators,Part[] royalties)Part(address account,uint96 value)");

    function hash(Mint721Data memory data) internal pure returns (bytes32) {
        bytes32[] memory royaltiesBytes = new bytes32[](data.royalties.length);
        for (uint i = 0; i < data.royalties.length; ++i) {
            royaltiesBytes[i] = LibPart.hash(data.royalties[i]);
        }
        bytes32[] memory creatorsBytes = new bytes32[](data.creators.length);
        for (uint i = 0; i < data.creators.length; ++i) {
            creatorsBytes[i] = LibPart.hash(data.creators[i]);
        }
        return keccak256(abi.encode(
                MINT_AND_TRANSFER_TYPEHASH,
                data.tokenId,
                keccak256(bytes(data.tokenURI)),
                keccak256(abi.encodePacked(creatorsBytes)),
                keccak256(abi.encodePacked(royaltiesBytes))
            ));
    }

}
          

@rarible/exchange-v2/contracts/libraries/LibOrderDataV2.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;
pragma abicoder v2;

import "@rarible/lib-part/contracts/LibPart.sol";

library LibOrderDataV2 {
    bytes4 constant public V2 = bytes4(keccak256("V2"));

    struct DataV2 {
        LibPart.Part[] payouts;
        LibPart.Part[] originFees;
        bool isMakeFill;
    }

}
          

@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20Upgradeable {
    /**
     * @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 `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, 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 `sender` to `recipient` 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 sender, address recipient, uint256 amount) external returns (bool);

    /**
     * @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);
}
          

@rarible/exchange-v2/contracts/libraries/LibOrderData.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;
pragma abicoder v2;

import "./LibOrder.sol";

library LibOrderData {

    struct GenericOrderData {
        LibPart.Part[] payouts;
        LibPart.Part[] originFees;
        bool isMakeFill;
    } 

    function parse(LibOrder.Order memory order) pure internal returns (GenericOrderData memory dataOrder) {
        if (order.dataType == LibOrderDataV1.V1) {
            LibOrderDataV1.DataV1 memory data = abi.decode(order.data, (LibOrderDataV1.DataV1));
            dataOrder.payouts = data.payouts;
            dataOrder.originFees = data.originFees;
        } else if (order.dataType == LibOrderDataV2.V2) {
            LibOrderDataV2.DataV2 memory data = abi.decode(order.data, (LibOrderDataV2.DataV2));
            dataOrder.payouts = data.payouts;
            dataOrder.originFees = data.originFees;
            dataOrder.isMakeFill = data.isMakeFill;
        } else if (order.dataType == 0xffffffff) {
        } else {
            revert("Unknown Order data type");
        }
        if (dataOrder.payouts.length == 0) {
            dataOrder.payouts = payoutSet(order.maker);
        }
    }

    function payoutSet(address orderAddress) pure internal returns (LibPart.Part[] memory) {
        LibPart.Part[] memory payout = new LibPart.Part[](1);
        payout[0].account = payable(orderAddress);
        payout[0].value = 10000;
        return payout;
    }

    function parseOriginFeeData(uint dataFirst, uint dataSecond) internal pure returns(LibPart.Part[] memory) {
        LibPart.Part[] memory originFee;

        if (dataFirst > 0 && dataSecond > 0){
            originFee = new LibPart.Part[](2);

            originFee[0] = uintToLibPart(dataFirst);
            originFee[1] = uintToLibPart(dataSecond);
        }

        if (dataFirst > 0 && dataSecond == 0) {
            originFee = new LibPart.Part[](1);

            originFee[0] = uintToLibPart(dataFirst);
        }

        if (dataFirst == 0 && dataSecond > 0) {
            originFee = new LibPart.Part[](1);

            originFee[0] = uintToLibPart(dataSecond);
        }

        return originFee;
    }

    function parsePayouts(uint data) internal pure returns(LibPart.Part[] memory) {
        LibPart.Part[] memory payouts;

        if (data > 0) {
            payouts = new LibPart.Part[](1);
            payouts[0] = uintToLibPart(data);
        }

        return payouts;
    }

    /**
        @notice converts uint to LibPart.Part
        @param data address and value encoded in uint (first 12 bytes )
        @return result LibPart.Part 
     */
    function uintToLibPart(uint data) internal pure returns(LibPart.Part memory result) {
        if (data > 0){
            result.account = payable(address(data));
            result.value = uint96(data >> 160);
        }
    }

}
          

@rarible/lazy-mint/contracts/erc-1155/LibERC1155LazyMint.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

import "@rarible/lib-part/contracts/LibPart.sol";

library LibERC1155LazyMint {
    bytes4 constant public ERC1155_LAZY_ASSET_CLASS = bytes4(keccak256("ERC1155_LAZY"));
    bytes4 constant _INTERFACE_ID_MINT_AND_TRANSFER = 0x6db15a0f;

    struct Mint1155Data {
        uint tokenId;
        string tokenURI;
        uint supply;
        LibPart.Part[] creators;
        LibPart.Part[] royalties;
        bytes[] signatures;
    }

    bytes32 public constant MINT_AND_TRANSFER_TYPEHASH = keccak256("Mint1155(uint256 tokenId,uint256 supply,string tokenURI,Part[] creators,Part[] royalties)Part(address account,uint96 value)");

    function hash(Mint1155Data memory data) internal pure returns (bytes32) {
        bytes32[] memory royaltiesBytes = new bytes32[](data.royalties.length);
        for (uint i = 0; i < data.royalties.length; ++i) {
            royaltiesBytes[i] = LibPart.hash(data.royalties[i]);
        }
        bytes32[] memory creatorsBytes = new bytes32[](data.creators.length);
        for (uint i = 0; i < data.creators.length; ++i) {
            creatorsBytes[i] = LibPart.hash(data.creators[i]);
        }
        return keccak256(abi.encode(
                MINT_AND_TRANSFER_TYPEHASH,
                data.tokenId,
                data.supply,
                keccak256(bytes(data.tokenURI)),
                keccak256(abi.encodePacked(creatorsBytes)),
                keccak256(abi.encodePacked(royaltiesBytes))
            ));
    }
}
          

@rarible/exchange-interfaces/contracts/ITransferProxy.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.9 <0.8.0;
pragma abicoder v2;

import "@rarible/lib-asset/contracts/LibAsset.sol";

interface ITransferProxy {
    function transfer(LibAsset.Asset calldata asset, address from, address to) external;
}
          

@rarible/exchange-v2/contracts/libraries/LibOrderDataV3.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;
pragma abicoder v2;

import "@rarible/lib-part/contracts/LibPart.sol";

/// @dev deprecated
library LibOrderDataV3 {
    bytes4 constant public V3_SELL = bytes4(keccak256("V3_SELL"));
    bytes4 constant public V3_BUY = bytes4(keccak256("V3_BUY"));

    struct DataV3_SELL {
        uint payouts;
        uint originFeeFirst;
        uint originFeeSecond;
        uint maxFeesBasePoint;
        bytes32 marketplaceMarker;
    }

    struct DataV3_BUY {
        uint payouts;
        uint originFeeFirst;
        uint originFeeSecond;
        bytes32 marketplaceMarker;
    }

}
          

@rarible/lib-part/contracts/LibPart.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

library LibPart {
    bytes32 public constant TYPE_HASH = keccak256("Part(address account,uint96 value)");

    struct Part {
        address payable account;
        uint96 value;
    }

    function hash(Part memory part) internal pure returns (bytes32) {
        return keccak256(abi.encode(TYPE_HASH, part.account, part.value));
    }
}
          

@rarible/exchange-v2/contracts/ExchangeV2Core.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;
pragma abicoder v2;

import "./libraries/LibFill.sol";
import "./libraries/LibOrderData.sol";
import "./libraries/LibDirectTransfer.sol";
import "./OrderValidator.sol";
import "./AssetMatcher.sol";

import "@rarible/transfer-manager/contracts/TransferExecutor.sol";
import "@rarible/transfer-manager/contracts/interfaces/ITransferManager.sol";
import "@rarible/transfer-manager/contracts/lib/LibDeal.sol";

abstract contract ExchangeV2Core is Initializable, OwnableUpgradeable, AssetMatcher, TransferExecutor, OrderValidator, ITransferManager {
    using SafeMathUpgradeable for uint;
    using LibTransfer for address;

    uint256 private constant UINT256_MAX = type(uint256).max;

    //state of the orders
    mapping(bytes32 => uint) public fills;

    //events
    event Cancel(bytes32 hash);
    event Match(bytes32 leftHash, bytes32 rightHash, uint newLeftFill, uint newRightFill);

    function cancel(LibOrder.Order memory order) external {
        require(_msgSender() == order.maker, "not a maker");
        require(order.salt != 0, "0 salt can't be used");
        bytes32 orderKeyHash = LibOrder.hashKey(order);
        fills[orderKeyHash] = UINT256_MAX;
        emit Cancel(orderKeyHash);
    }

    /**
     * @dev function, generate sellOrder and buyOrder from parameters and call validateAndMatch() for purchase transaction
 
    */

    function directPurchase(
        LibDirectTransfer.Purchase calldata direct
    ) external payable{
        LibAsset.AssetType memory paymentAssetType = getPaymentAssetType(direct.paymentToken);
                
        LibOrder.Order memory sellOrder = LibOrder.Order(
            direct.sellOrderMaker,
            LibAsset.Asset(
                LibAsset.AssetType(
                    direct.nftAssetClass,
                    direct.nftData
                ),
                direct.sellOrderNftAmount
            ),
            address(0),
            LibAsset.Asset(
                paymentAssetType,
                direct.sellOrderPaymentAmount
            ),
            direct.sellOrderSalt,
            direct.sellOrderStart,
            direct.sellOrderEnd,
            direct.sellOrderDataType,
            direct.sellOrderData
        );

        LibOrder.Order memory buyOrder = LibOrder.Order(
            address(0),
            LibAsset.Asset(
                paymentAssetType,
                direct.buyOrderPaymentAmount
            ),
            address(0),
            LibAsset.Asset(
                LibAsset.AssetType(
                    direct.nftAssetClass,
                    direct.nftData
                ),
                direct.buyOrderNftAmount
            ),
            0,
            0,
            0,
            direct.sellOrderDataType,
            direct.buyOrderData
        );

        validateFull(sellOrder, direct.sellOrderSignature);

        matchAndTransfer(sellOrder, buyOrder);
    }

    /**
     * @dev function, generate sellOrder and buyOrder from parameters and call validateAndMatch() for accept bid transaction
     * @param direct struct with parameters for accept bid operation
     */
    function directAcceptBid(
        LibDirectTransfer.AcceptBid calldata direct
    ) external payable {
        LibAsset.AssetType memory paymentAssetType = getPaymentAssetType(direct.paymentToken);

        LibOrder.Order memory buyOrder = LibOrder.Order(
            direct.bidMaker,
            LibAsset.Asset(
                paymentAssetType,
                direct.bidPaymentAmount
            ),
            address(0),
            LibAsset.Asset(
                LibAsset.AssetType(
                    direct.nftAssetClass,
                    direct.nftData
                ),
                direct.bidNftAmount
            ),
            direct.bidSalt,
            direct.bidStart,
            direct.bidEnd,
            direct.bidDataType,
            direct.bidData
        );

        LibOrder.Order memory sellOrder = LibOrder.Order(
            address(0),
            LibAsset.Asset(
                LibAsset.AssetType(
                    direct.nftAssetClass,
                    direct.nftData
                ),
                direct.sellOrderNftAmount
            ),
            address(0),
            LibAsset.Asset(
                paymentAssetType,
                direct.sellOrderPaymentAmount
            ),
            0,
            0,
            0,
            direct.bidDataType,
            direct.sellOrderData
        );

        validateFull(buyOrder, direct.bidSignature);

        matchAndTransfer(sellOrder, buyOrder);
    }

    function matchOrders(
        LibOrder.Order memory orderLeft,
        bytes memory signatureLeft,
        LibOrder.Order memory orderRight,
        bytes memory signatureRight
    ) external payable {
        validateOrders(orderLeft, signatureLeft, orderRight, signatureRight);
        matchAndTransfer(orderLeft, orderRight);
    }

    /**
      * @dev function, validate orders
      * @param orderLeft left order
      * @param signatureLeft order left signature
      * @param orderRight right order
      * @param signatureRight order right signature
      */
    function validateOrders(LibOrder.Order memory orderLeft, bytes memory signatureLeft, LibOrder.Order memory orderRight, bytes memory signatureRight) internal view {
        validateFull(orderLeft, signatureLeft);
        validateFull(orderRight, signatureRight);
        if (orderLeft.taker != address(0)) {
            if (orderRight.maker != address(0))
                require(orderRight.maker == orderLeft.taker, "leftOrder.taker verification failed");
        }
        if (orderRight.taker != address(0)) {
            if (orderLeft.maker != address(0))
                require(orderRight.taker == orderLeft.maker, "rightOrder.taker verification failed");
        }
    }

    /**
        @notice matches valid orders and transfers their assets
        @param orderLeft the left order of the match
        @param orderRight the right order of the match
    */
    function matchAndTransfer(LibOrder.Order memory orderLeft, LibOrder.Order memory orderRight) internal {
        (LibAsset.AssetType memory makeMatch, LibAsset.AssetType memory takeMatch) = matchAssets(orderLeft, orderRight);

        (LibOrderData.GenericOrderData memory leftOrderData, LibOrderData.GenericOrderData memory rightOrderData, LibFill.FillResult memory newFill) =
            parseOrdersSetFillEmitMatch(orderLeft, orderRight);

        (uint totalMakeValue, uint totalTakeValue) = doTransfers(
            LibDeal.DealSide({
                asset: LibAsset.Asset({
                    assetType: makeMatch,
                    value: newFill.leftValue
                }),
                payouts: leftOrderData.payouts,
                originFees: leftOrderData.originFees,
                proxy: proxies[makeMatch.assetClass],
                from: orderLeft.maker
            }), 
            LibDeal.DealSide({
                asset: LibAsset.Asset( 
                    takeMatch,
                    newFill.rightValue
                ),
                payouts: rightOrderData.payouts,
                originFees: rightOrderData.originFees,
                proxy: proxies[takeMatch.assetClass],
                from: orderRight.maker
            }),
            LibFeeSide.getFeeSide(makeMatch.assetClass, takeMatch.assetClass)
        );
        if (makeMatch.assetClass == LibAsset.ETH_ASSET_CLASS) {
            require(takeMatch.assetClass != LibAsset.ETH_ASSET_CLASS);
            require(msg.value >= totalMakeValue, "not enough eth");
            if (msg.value > totalMakeValue) {
                address(msg.sender).transferEth(msg.value.sub(totalMakeValue));
            }
        } else if (takeMatch.assetClass == LibAsset.ETH_ASSET_CLASS) {
            require(msg.value >= totalTakeValue, "not enough eth");
            if (msg.value > totalTakeValue) {
                address(msg.sender).transferEth(msg.value.sub(totalTakeValue));
            }
        }
    }

    function parseOrdersSetFillEmitMatch(
        LibOrder.Order memory orderLeft,
        LibOrder.Order memory orderRight
    ) internal returns (LibOrderData.GenericOrderData memory leftOrderData, LibOrderData.GenericOrderData memory rightOrderData, LibFill.FillResult memory newFill) {
        bytes32 leftOrderKeyHash = LibOrder.hashKey(orderLeft);
        bytes32 rightOrderKeyHash = LibOrder.hashKey(orderRight);

        address msgSender = _msgSender();
        if (orderLeft.maker == address(0)) {
            orderLeft.maker = msgSender;
        }
        if (orderRight.maker == address(0)) {
            orderRight.maker = msgSender;
        }

        leftOrderData = LibOrderData.parse(orderLeft);
        rightOrderData = LibOrderData.parse(orderRight);

        newFill = setFillEmitMatch(
            orderLeft,
            orderRight,
            leftOrderKeyHash,
            rightOrderKeyHash,
            leftOrderData.isMakeFill,
            rightOrderData.isMakeFill
        );
    }

    /**
        @notice calculates fills for the matched orders and set them in "fills" mapping
        @param orderLeft left order of the match
        @param orderRight right order of the match
        @param leftMakeFill true if the left orders uses make-side fills, false otherwise
        @param rightMakeFill true if the right orders uses make-side fills, false otherwise
        @return returns change in orders' fills by the match 
    */
    function setFillEmitMatch(
        LibOrder.Order memory orderLeft,
        LibOrder.Order memory orderRight,
        bytes32 leftOrderKeyHash,
        bytes32 rightOrderKeyHash,
        bool leftMakeFill,
        bool rightMakeFill
    ) internal returns (LibFill.FillResult memory) {
        uint leftOrderFill = getOrderFill(orderLeft.salt, leftOrderKeyHash);
        uint rightOrderFill = getOrderFill(orderRight.salt, rightOrderKeyHash);
        LibFill.FillResult memory newFill = LibFill.fillOrder(orderLeft, orderRight, leftOrderFill, rightOrderFill, leftMakeFill, rightMakeFill);

        if (orderLeft.makeAsset.value != 0 || orderRight.takeAsset.value != 0) {
            require(newFill.leftValue > 0, "nothing to fill");
        }
        if (orderLeft.takeAsset.value != 0 || orderRight.makeAsset.value != 0) {
            require(newFill.rightValue > 0, "nothing to fill");
        }

        if (orderLeft.salt != 0) {
            if (leftMakeFill) {
                fills[leftOrderKeyHash] = leftOrderFill.add(newFill.leftValue);
            } else {
                fills[leftOrderKeyHash] = leftOrderFill.add(newFill.rightValue);
            }
        }

        if (orderRight.salt != 0) {
            if (rightMakeFill) {
                fills[rightOrderKeyHash] = rightOrderFill.add(newFill.rightValue);
            } else {
                fills[rightOrderKeyHash] = rightOrderFill.add(newFill.leftValue);
            }
        }

        emit Match(leftOrderKeyHash, rightOrderKeyHash, newFill.rightValue, newFill.leftValue);

        return newFill;
    }

    function getOrderFill(uint salt, bytes32 hash) internal view returns (uint fill) {
        if (salt == 0) {
            fill = 0;
        } else {
            fill = fills[hash];
        }
    }

    function matchAssets(LibOrder.Order memory orderLeft, LibOrder.Order memory orderRight) internal view returns (LibAsset.AssetType memory makeMatch, LibAsset.AssetType memory takeMatch) {
        makeMatch = matchAssets(orderLeft.makeAsset.assetType, orderRight.takeAsset.assetType);
        require(makeMatch.assetClass != 0, "assets don't match");
        takeMatch = matchAssets(orderLeft.takeAsset.assetType, orderRight.makeAsset.assetType);
        require(takeMatch.assetClass != 0, "assets don't match");
    }

    function validateFull(LibOrder.Order memory order, bytes memory signature) internal view {
        LibOrder.validateOrderTime(order);
        validate(order, signature);
    }

    function getPaymentAssetType(address token) internal pure returns(LibAsset.AssetType memory){
        LibAsset.AssetType memory result;
        if(token == address(0)) {
            result.assetClass = LibAsset.ETH_ASSET_CLASS;
        } else {
            result.assetClass = LibAsset.ERC20_ASSET_CLASS;
            result.data = abi.encode(token);
        }
        return result;
    }

    uint256[49] private __gap;
}
          

@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

import "../../introspection/IERC165Upgradeable.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721Upgradeable is IERC165Upgradeable {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);

    /**
      * @dev Safely transfers `tokenId` token from `from` to `to`.
      *
      * Requirements:
      *
      * - `from` cannot be the zero address.
      * - `to` cannot be the zero address.
      * - `tokenId` token must exist and be owned by `from`.
      * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
      * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
      *
      * Emits a {Transfer} event.
      */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;
}
          

@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "../utils/ContextUpgradeable.sol";
import "../proxy/Initializable.sol";
/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    function __Ownable_init() internal initializer {
        __Context_init_unchained();
        __Ownable_init_unchained();
    }

    function __Ownable_init_unchained() internal initializer {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
    uint256[49] private __gap;
}
          

@rarible/transfer-manager/contracts/lib/LibFeeSide.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;

import "@rarible/lib-asset/contracts/LibAsset.sol";

library LibFeeSide {

    enum FeeSide {NONE, LEFT, RIGHT}

    function getFeeSide(bytes4 leftClass, bytes4 rightClass) internal pure returns (FeeSide) {
        if (leftClass == LibAsset.ETH_ASSET_CLASS) {
            return FeeSide.LEFT;
        }
        if (rightClass == LibAsset.ETH_ASSET_CLASS) {
            return FeeSide.RIGHT;
        }
        if (leftClass == LibAsset.ERC20_ASSET_CLASS) {
            return FeeSide.LEFT;
        }
        if (rightClass == LibAsset.ERC20_ASSET_CLASS) {
            return FeeSide.RIGHT;
        }
        if (leftClass == LibAsset.ERC1155_ASSET_CLASS) {
            return FeeSide.LEFT;
        }
        if (rightClass == LibAsset.ERC1155_ASSET_CLASS) {
            return FeeSide.RIGHT;
        }
        return FeeSide.NONE;
    }
}
          

@rarible/exchange-v2/contracts/libraries/LibMath.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;

import "@openzeppelin/contracts-upgradeable/math/SafeMathUpgradeable.sol";

library LibMath {
    using SafeMathUpgradeable for uint;

    /// @dev Calculates partial value given a numerator and denominator rounded down.
    ///      Reverts if rounding error is >= 0.1%
    /// @param numerator Numerator.
    /// @param denominator Denominator.
    /// @param target Value to calculate partial of.
    /// @return partialAmount value of target rounded down.
    function safeGetPartialAmountFloor(
        uint256 numerator,
        uint256 denominator,
        uint256 target
    ) internal pure returns (uint256 partialAmount) {
        if (isRoundingErrorFloor(numerator, denominator, target)) {
            revert("rounding error");
        }
        partialAmount = numerator.mul(target).div(denominator);
    }

    /// @dev Checks if rounding error >= 0.1% when rounding down.
    /// @param numerator Numerator.
    /// @param denominator Denominator.
    /// @param target Value to multiply with numerator/denominator.
    /// @return isError Rounding error is present.
    function isRoundingErrorFloor(
        uint256 numerator,
        uint256 denominator,
        uint256 target
    ) internal pure returns (bool isError) {
        if (denominator == 0) {
            revert("division by zero");
        }

        // The absolute rounding error is the difference between the rounded
        // value and the ideal value. The relative rounding error is the
        // absolute rounding error divided by the absolute value of the
        // ideal value. This is undefined when the ideal value is zero.
        //
        // The ideal value is `numerator * target / denominator`.
        // Let's call `numerator * target % denominator` the remainder.
        // The absolute error is `remainder / denominator`.
        //
        // When the ideal value is zero, we require the absolute error to
        // be zero. Fortunately, this is always the case. The ideal value is
        // zero iff `numerator == 0` and/or `target == 0`. In this case the
        // remainder and absolute error are also zero.
        if (target == 0 || numerator == 0) {
            return false;
        }

        // Otherwise, we want the relative rounding error to be strictly
        // less than 0.1%.
        // The relative error is `remainder / (numerator * target)`.
        // We want the relative error less than 1 / 1000:
        //        remainder / (numerator * target)  <  1 / 1000
        // or equivalently:
        //        1000 * remainder  <  numerator * target
        // so we have a rounding error iff:
        //        1000 * remainder  >=  numerator * target
        uint256 remainder = mulmod(
            target,
            numerator,
            denominator
        );
        isError = remainder.mul(1000) >= numerator.mul(target);
    }

    function safeGetPartialAmountCeil(
        uint256 numerator,
        uint256 denominator,
        uint256 target
    ) internal pure returns (uint256 partialAmount) {
        if (isRoundingErrorCeil(numerator, denominator, target)) {
            revert("rounding error");
        }
        partialAmount = numerator.mul(target).add(denominator.sub(1)).div(denominator);
    }

    /// @dev Checks if rounding error >= 0.1% when rounding up.
    /// @param numerator Numerator.
    /// @param denominator Denominator.
    /// @param target Value to multiply with numerator/denominator.
    /// @return isError Rounding error is present.
    function isRoundingErrorCeil(
        uint256 numerator,
        uint256 denominator,
        uint256 target
    ) internal pure returns (bool isError) {
        if (denominator == 0) {
            revert("division by zero");
        }

        // See the comments in `isRoundingError`.
        if (target == 0 || numerator == 0) {
            // When either is zero, the ideal value and rounded value are zero
            // and there is no rounding error. (Although the relative error
            // is undefined.)
            return false;
        }
        // Compute remainder as before
        uint256 remainder = mulmod(
            target,
            numerator,
            denominator
        );
        remainder = denominator.sub(remainder) % denominator;
        isError = remainder.mul(1000) >= numerator.mul(target);
        return isError;
    }
}
          

@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;
import "../proxy/Initializable.sol";

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract ContextUpgradeable is Initializable {
    function __Context_init() internal initializer {
        __Context_init_unchained();
    }

    function __Context_init_unchained() internal initializer {
    }
    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
    uint256[50] private __gap;
}
          

@rarible/exchange-interfaces/contracts/IAssetMatcher.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;
pragma abicoder v2;

import "@rarible/lib-asset/contracts/LibAsset.sol";

interface IAssetMatcher {
    function matchAssets(
        LibAsset.AssetType memory leftAssetType,
        LibAsset.AssetType memory rightAssetType
    ) external view returns (LibAsset.AssetType memory);
}
          

@rarible/exchange-v2/contracts/libraries/LibOrderDataV1.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;
pragma abicoder v2;

import "@rarible/lib-part/contracts/LibPart.sol";

library LibOrderDataV1 {
    bytes4 constant public V1 = bytes4(keccak256("V1"));

    struct DataV1 {
        LibPart.Part[] payouts;
        LibPart.Part[] originFees;
    }

}
          

@openzeppelin/contracts/math/SafeMath.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        uint256 c = a + b;
        if (c < a) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b > a) return (false, 0);
        return (true, a - b);
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) return (true, 0);
        uint256 c = a * b;
        if (c / a != b) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a / b);
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a % b);
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "SafeMath: subtraction overflow");
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) return 0;
        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");
        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: division by zero");
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: modulo by zero");
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        return a - b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryDiv}.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a % b;
    }
}
          

@rarible/exchange-v2/contracts/OrderValidator.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;

import "./libraries/LibOrder.sol";

import "@rarible/lib-signature/contracts/IERC1271.sol";
import "@rarible/lib-signature/contracts/LibSignature.sol";

import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/drafts/EIP712Upgradeable.sol";

abstract contract OrderValidator is Initializable, ContextUpgradeable, EIP712Upgradeable {
    using LibSignature for bytes32;
    using AddressUpgradeable for address;
    
    bytes4 constant internal MAGICVALUE = 0x1626ba7e;

    function __OrderValidator_init_unchained() internal initializer {
        __EIP712_init_unchained("Exchange", "2");
    }

    function validate(LibOrder.Order memory order, bytes memory signature) internal view {
        if (order.salt == 0) {
            if (order.maker != address(0)) {
                require(_msgSender() == order.maker, "maker is not tx sender");
            }
        } else {
            if (_msgSender() != order.maker) {
                bytes32 hash = LibOrder.hash(order);
                // if maker is contract checking ERC1271 signature
                if (order.maker.isContract()) {
                    require(
                        IERC1271(order.maker).isValidSignature(_hashTypedDataV4(hash), signature) == MAGICVALUE,
                        "contract order signature verification error"
                    );
                } else {
                    // if maker is not contract then checking ECDSA signature
                    if (_hashTypedDataV4(hash).recover(signature) != order.maker) {
                        revert("order signature verification error");
                    } else {
                        require (order.maker != address(0), "no maker");
                    }
                }
            }
        }
    }

    uint256[50] private __gap;
}
          

@rarible/transfer-manager/contracts/interfaces/ITransferExecutor.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;
pragma abicoder v2;

import "@rarible/lib-asset/contracts/LibAsset.sol";

abstract contract ITransferExecutor {
    function transfer(
        LibAsset.Asset memory asset,
        address from,
        address to,
        address proxy
    ) internal virtual;
}
          

@rarible/exchange-interfaces/contracts/IERC20TransferProxy.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.9 <0.8.0;
pragma abicoder v2;

import "@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol";

interface IERC20TransferProxy {
    function erc20safeTransferFrom(IERC20Upgradeable token, address from, address to, uint256 value) external;
}
          

@rarible/transfer-manager/contracts/RaribleTransferManager.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;
pragma abicoder v2;

import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";

import "@rarible/lazy-mint/contracts/erc-721/LibERC721LazyMint.sol";
import "@rarible/lazy-mint/contracts/erc-1155/LibERC1155LazyMint.sol";

import "@rarible/exchange-interfaces/contracts/IRoyaltiesProvider.sol";

import "@rarible/lib-bp/contracts/BpLibrary.sol";

import "./interfaces/ITransferManager.sol";

abstract contract RaribleTransferManager is OwnableUpgradeable, ITransferManager {
    using BpLibrary for uint;
    using SafeMathUpgradeable for uint;

    ProtocolFeeData public protocolFee;
    IRoyaltiesProvider public royaltiesRegistry;

    //deprecated
    address private defaultFeeReceiver;
    // deprecated
    mapping(address => address) private feeReceivers;

    /// @dev event that's emitted when ProtocolFeeData buyerAmount changes
    event BuyerFeeAmountChanged(uint oldValue, uint newValue);

    /// @dev event that's emitted when ProtocolFeeData sellerAmount changes
    event SellerFeeAmountChanged(uint oldValue, uint newValue);

    /// @dev event that's emitted when ProtocolFeeData receiver changes
    event FeeReceiverChanged(address oldValue, address newValue);

    /// @dev struct to store protocol fee - receiver address, buyer fee amount (in bp), seller fee amount (in bp)
    struct ProtocolFeeData {
        address receiver;
        uint48 buyerAmount;
        uint48 sellerAmount;
    }

    /**
        @notice initialises RaribleTransferManager state
        @param newProtocolFee deprecated
        @param newDefaultFeeReceiver deprecated
        @param newRoyaltiesProvider royaltiesRegistry contract address
     */
    function __RaribleTransferManager_init_unchained(
        uint newProtocolFee,
        address newDefaultFeeReceiver,
        IRoyaltiesProvider newRoyaltiesProvider
    ) internal initializer {
        royaltiesRegistry = newRoyaltiesProvider;
    }

    function setRoyaltiesRegistry(IRoyaltiesProvider newRoyaltiesRegistry) external onlyOwner {
        royaltiesRegistry = newRoyaltiesRegistry;
    }

    function setPrtocolFeeReceiver(address _receiver) public onlyOwner {
        emit FeeReceiverChanged(protocolFee.receiver, _receiver);
        protocolFee.receiver = _receiver;
    }

    function setPrtocolFeeBuyerAmount(uint48 _buyerAmount) public onlyOwner {
        emit BuyerFeeAmountChanged(protocolFee.buyerAmount, _buyerAmount);
        protocolFee.buyerAmount = _buyerAmount;
    }

    function setPrtocolFeeSellerAmount(uint48 _sellerAmount) public onlyOwner {
        emit SellerFeeAmountChanged(protocolFee.sellerAmount, _sellerAmount);
        protocolFee.sellerAmount = _sellerAmount;
    }

    function setAllProtocolFeeData(address _receiver, uint48 _buyerAmount, uint48 _sellerAmount) public onlyOwner {
        setPrtocolFeeReceiver(_receiver);
        setPrtocolFeeBuyerAmount(_buyerAmount);
        setPrtocolFeeSellerAmount(_sellerAmount);
    }

    /**
        @notice executes transfers for 2 matched orders
        @param left DealSide from the left order (see LibDeal.sol)
        @param right DealSide from the right order (see LibDeal.sol)
        @param feeSide feeSide of the match
        @return totalLeftValue - total amount for the left order
        @return totalRightValue - total amout for the right order
    */
    function doTransfers(
        LibDeal.DealSide memory left,
        LibDeal.DealSide memory right,
        LibFeeSide.FeeSide feeSide
    ) override internal returns (uint totalLeftValue, uint totalRightValue) {
        totalLeftValue = left.asset.value;
        totalRightValue = right.asset.value;

        if (feeSide == LibFeeSide.FeeSide.LEFT) {
            totalLeftValue = doTransfersWithFees(left, right, protocolFee);
            transferPayouts(right.asset.assetType, right.asset.value, right.from, left.payouts, right.proxy);
        } else if (feeSide == LibFeeSide.FeeSide.RIGHT) {
            totalRightValue = doTransfersWithFees(right, left,protocolFee);
            transferPayouts(left.asset.assetType, left.asset.value, left.from, right.payouts, left.proxy);
        } else {
            transferPayouts(left.asset.assetType, left.asset.value, left.from, right.payouts, left.proxy);
            transferPayouts(right.asset.assetType, right.asset.value, right.from, left.payouts, right.proxy);
        }
    }

    /**
        @notice executes the fee-side transfers (payment + fees)
        @param paymentSide DealSide of the fee-side order
        @param nftSide  DealSide of the nft-side order
        @param _protocolFee protocol fee data
        @return totalAmount of fee-side asset
    */
    function doTransfersWithFees(
        LibDeal.DealSide memory paymentSide,
        LibDeal.DealSide memory nftSide,
        ProtocolFeeData memory _protocolFee
    ) internal returns (uint totalAmount) {
        totalAmount = calculateTotalAmount(paymentSide.asset.value, _protocolFee, paymentSide.originFees);
        uint rest = transferProtocolFee(totalAmount, paymentSide.asset.value, paymentSide.from, _protocolFee, paymentSide.asset.assetType, paymentSide.proxy);

        rest = transferRoyalties(paymentSide.asset.assetType, nftSide.asset.assetType, nftSide.payouts, rest, paymentSide.asset.value, paymentSide.from, paymentSide.proxy);
        if (
            paymentSide.originFees.length  == 1 &&
            nftSide.originFees.length  == 1 &&
            nftSide.originFees[0].account == paymentSide.originFees[0].account
        ) { 
            LibPart.Part[] memory origin = new  LibPart.Part[](1);
            origin[0].account = nftSide.originFees[0].account;
            origin[0].value = nftSide.originFees[0].value + paymentSide.originFees[0].value;
            (rest,) = transferFees(paymentSide.asset.assetType, rest, paymentSide.asset.value, origin, paymentSide.from, paymentSide.proxy);
        } else {
            (rest,) = transferFees(paymentSide.asset.assetType, rest, paymentSide.asset.value, paymentSide.originFees, paymentSide.from, paymentSide.proxy);
            (rest,) = transferFees(paymentSide.asset.assetType, rest, paymentSide.asset.value, nftSide.originFees, paymentSide.from, paymentSide.proxy);
        }
        transferPayouts(paymentSide.asset.assetType, rest, paymentSide.from, nftSide.payouts, paymentSide.proxy);
    }

    function transferProtocolFee(
        uint totalAmount,
        uint amount,
        address from,
        ProtocolFeeData memory _protocolFee,
        LibAsset.AssetType memory matchCalculate,
        address proxy
    ) internal returns (uint) {
        (uint rest, uint fee) = subFeeInBp(totalAmount, amount, _protocolFee.buyerAmount + _protocolFee.sellerAmount);
        if (fee > 0) {
            transfer(LibAsset.Asset(matchCalculate, fee), from, _protocolFee.receiver, proxy);
        }
        return rest;
    }

    /**
        @notice Transfer royalties. If there is only one royalties receiver and one address in payouts and they match,
           nothing is transferred in this function
        @param paymentAssetType Asset Type which represents payment
        @param nftAssetType Asset Type which represents NFT to pay royalties for
        @param payouts Payouts to be made
        @param rest How much of the amount left after previous transfers
        @param from owner of the Asset to transfer
        @param proxy Transfer proxy to use
        @return How much left after transferring royalties
    */
    function transferRoyalties(
        LibAsset.AssetType memory paymentAssetType,
        LibAsset.AssetType memory nftAssetType,
        LibPart.Part[] memory payouts,
        uint rest,
        uint amount,
        address from,
        address proxy
    ) internal returns (uint) {
        LibPart.Part[] memory royalties = getRoyaltiesByAssetType(nftAssetType);
        if (
            royalties.length == 1 &&
            payouts.length == 1 &&
            royalties[0].account == payouts[0].account
        ) {
            require(royalties[0].value <= 5000, "Royalties are too high (>50%)");
            return rest;
        }
        (uint result, uint totalRoyalties) = transferFees(paymentAssetType, rest, amount, royalties, from, proxy);
        require(totalRoyalties <= 5000, "Royalties are too high (>50%)");
        return result;
    }

    /**
        @notice calculates royalties by asset type. If it's a lazy NFT, then royalties are extracted from asset. otherwise using royaltiesRegistry
        @param nftAssetType NFT Asset Type to calculate royalties for
        @return calculated royalties (Array of LibPart.Part)
    */
    function getRoyaltiesByAssetType(LibAsset.AssetType memory nftAssetType) internal returns (LibPart.Part[] memory) {
        if (nftAssetType.assetClass == LibAsset.ERC1155_ASSET_CLASS || nftAssetType.assetClass == LibAsset.ERC721_ASSET_CLASS) {
            (address token, uint tokenId) = abi.decode(nftAssetType.data, (address, uint));
            return royaltiesRegistry.getRoyalties(token, tokenId);
        } else if (nftAssetType.assetClass == LibERC1155LazyMint.ERC1155_LAZY_ASSET_CLASS) {
            (, LibERC1155LazyMint.Mint1155Data memory data) = abi.decode(nftAssetType.data, (address, LibERC1155LazyMint.Mint1155Data));
            return data.royalties;
        } else if (nftAssetType.assetClass == LibERC721LazyMint.ERC721_LAZY_ASSET_CLASS) {
            (, LibERC721LazyMint.Mint721Data memory data) = abi.decode(nftAssetType.data, (address, LibERC721LazyMint.Mint721Data));
            return data.royalties;
        }
        LibPart.Part[] memory empty;
        return empty;
    }

    /**
        @notice Transfer fees
        @param assetType Asset Type to transfer
        @param rest How much of the amount left after previous transfers
        @param amount Total amount of the Asset. Used as a base to calculate part from (100%)
        @param fees Array of LibPart.Part which represents fees to pay
        @param from owner of the Asset to transfer
        @param proxy Transfer proxy to use
        @return newRest how much left after transferring fees
        @return totalFees total number of fees in bp
    */
    function transferFees(
        LibAsset.AssetType memory assetType,
        uint rest,
        uint amount,
        LibPart.Part[] memory fees,
        address from,
        address proxy
    ) internal returns (uint newRest, uint totalFees) {
        totalFees = 0;
        newRest = rest;
        for (uint256 i = 0; i < fees.length; ++i) {
            totalFees = totalFees.add(fees[i].value);
            uint feeValue;
            (newRest, feeValue) = subFeeInBp(newRest, amount, fees[i].value);
            if (feeValue > 0) {
                transfer(LibAsset.Asset(assetType, feeValue), from, fees[i].account, proxy);
            }
        }
    }

    /**
        @notice transfers main part of the asset (payout)
        @param assetType Asset Type to transfer
        @param amount Amount of the asset to transfer
        @param from Current owner of the asset
        @param payouts List of payouts - receivers of the Asset
        @param proxy Transfer Proxy to use
    */
    function transferPayouts(
        LibAsset.AssetType memory assetType,
        uint amount,
        address from,
        LibPart.Part[] memory payouts,
        address proxy
    ) internal {
        require(payouts.length > 0, "transferPayouts: nothing to transfer");
        uint sumBps = 0;
        uint rest = amount;
        for (uint256 i = 0; i < payouts.length - 1; ++i) {
            uint currentAmount = amount.bp(payouts[i].value);
            sumBps = sumBps.add(payouts[i].value);
            if (currentAmount > 0) {
                rest = rest.sub(currentAmount);
                transfer(LibAsset.Asset(assetType, currentAmount), from, payouts[i].account, proxy);
            }
        }
        LibPart.Part memory lastPayout = payouts[payouts.length - 1];
        sumBps = sumBps.add(lastPayout.value);
        require(sumBps == 10000, "Sum payouts Bps not equal 100%");
        if (rest > 0) {
            transfer(LibAsset.Asset(assetType, rest), from, lastPayout.account, proxy);
        }
    }
    
    /**
        @notice calculates total amount of fee-side asset that is going to be used in match
        @param amount fee-side order value
        @param _protocolFee protocol fee
        @param orderOriginFees fee-side order's origin fee (it adds on top of the amount)
        @return total amount of fee-side asset
    */
    function calculateTotalAmount(
        uint amount,
        ProtocolFeeData memory _protocolFee,
        LibPart.Part[] memory orderOriginFees
    ) internal pure returns (uint) {
        
        uint fees = _protocolFee.buyerAmount;
        for (uint256 i = 0; i < orderOriginFees.length; ++i) {
            require(orderOriginFees[i].value <= 10000, "origin fee is too big");
            fees = fees + orderOriginFees[i].value;
        }

        return amount.add(amount.bp(fees));
    }

    function subFeeInBp(uint value, uint total, uint feeInBp) internal pure returns (uint newValue, uint realFee) {
        return subFee(value, total.bp(feeInBp));
    }

    function subFee(uint value, uint fee) internal pure returns (uint newValue, uint realFee) {
        if (value > fee) {
            newValue = value.sub(fee);
            realFee = fee;
        } else {
            newValue = 0;
            realFee = value;
        }
    }

    uint256[46] private __gap;
}
          

@rarible/exchange-v2/contracts/AssetMatcher.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;
pragma abicoder v2;

import "@rarible/exchange-interfaces/contracts/IAssetMatcher.sol";
import "@openzeppelin/contracts-upgradeable/proxy/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";

abstract contract AssetMatcher is Initializable, OwnableUpgradeable {

    bytes constant EMPTY = "";
    mapping(bytes4 => address) internal matchers;

    event MatcherChange(bytes4 indexed assetType, address matcher);

    function setAssetMatcher(bytes4 assetType, address matcher) external onlyOwner {
        matchers[assetType] = matcher;
        emit MatcherChange(assetType, matcher);
    }

    function matchAssets(LibAsset.AssetType memory leftAssetType, LibAsset.AssetType memory rightAssetType) internal view returns (LibAsset.AssetType memory) {
        LibAsset.AssetType memory result = matchAssetOneSide(leftAssetType, rightAssetType);
        if (result.assetClass == 0) {
            return matchAssetOneSide(rightAssetType, leftAssetType);
        } else {
            return result;
        }
    }

    function matchAssetOneSide(LibAsset.AssetType memory leftAssetType, LibAsset.AssetType memory rightAssetType) private view returns (LibAsset.AssetType memory) {
        bytes4 classLeft = leftAssetType.assetClass;
        bytes4 classRight = rightAssetType.assetClass;
        if (classLeft == LibAsset.ETH_ASSET_CLASS) {
            if (classRight == LibAsset.ETH_ASSET_CLASS) {
                return leftAssetType;
            }
            return LibAsset.AssetType(0, EMPTY);
        }
        if (classLeft == LibAsset.ERC20_ASSET_CLASS) {
            if (classRight == LibAsset.ERC20_ASSET_CLASS) {
                return simpleMatch(leftAssetType, rightAssetType);
            }
            return LibAsset.AssetType(0, EMPTY);
        }
        if (classLeft == LibAsset.ERC721_ASSET_CLASS) {
            if (classRight == LibAsset.ERC721_ASSET_CLASS) {
                return simpleMatch(leftAssetType, rightAssetType);
            }
            return LibAsset.AssetType(0, EMPTY);
        }
        if (classLeft == LibAsset.ERC1155_ASSET_CLASS) {
            if (classRight == LibAsset.ERC1155_ASSET_CLASS) {
                return simpleMatch(leftAssetType, rightAssetType);
            }
            return LibAsset.AssetType(0, EMPTY);
        }
        address matcher = matchers[classLeft];
        if (matcher != address(0)) {
            return IAssetMatcher(matcher).matchAssets(leftAssetType, rightAssetType);
        }
        if (classLeft == classRight) {
            return simpleMatch(leftAssetType, rightAssetType);
        }
        revert("not found IAssetMatcher");
    }

    function simpleMatch(LibAsset.AssetType memory leftAssetType, LibAsset.AssetType memory rightAssetType) private pure returns (LibAsset.AssetType memory) {
        bytes32 leftHash = keccak256(leftAssetType.data);
        bytes32 rightHash = keccak256(rightAssetType.data);
        if (leftHash == rightHash) {
            return leftAssetType;
        }
        return LibAsset.AssetType(0, EMPTY);
    }

    uint256[49] private __gap;
}
          

@rarible/meta-tx/contracts/EIP712MetaTransaction.sol

//SPDX-License-Identifier: MIT

pragma solidity 0.7.6;

import "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol";
import "@openzeppelin/contracts/math/SafeMath.sol";

abstract contract EIP712MetaTransaction is ContextUpgradeable {
    using SafeMath for uint256;

    bytes32 private constant META_TRANSACTION_TYPEHASH = keccak256(bytes("MetaTransaction(uint256 nonce,address from,bytes functionSignature)"));
    bytes32 internal constant EIP712_DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,string version,address verifyingContract,bytes32 salt)");

    mapping(address => uint256) private nonces;
    bytes32 internal domainSeparator;

    /*
     * Meta transaction structure.
     * No point of including value field here as if user is doing value transfer then he has the funds to pay for gas
     * He should call the desired function directly in that case.
     */
    struct MetaTransaction {
        uint256 nonce;
        address from;
        bytes functionSignature;
    }

    /*
     * Domain structure.
     * Data(information to for making metaTransaction method uniq.) about method and contract
     */
    struct EIP712Domain {
        string name;
        string version;
        address verifyingContract;
        bytes32 salt;
    }

    event MetaTransactionExecuted(address userAddress, address payable relayerAddress, bytes functionSignature);

    function __MetaTransaction_init_unchained(string memory name, string memory version) internal {
        domainSeparator = keccak256(abi.encode(
                EIP712_DOMAIN_TYPEHASH,
                keccak256(bytes(name)),
                keccak256(bytes(version)),
                address(this),
                getSalt()
            ));
    }

    function convertBytesToBytes4(bytes memory inBytes) internal pure returns (bytes4 outBytes4) {
        if (inBytes.length == 0) {
            return 0x0;
        }

        assembly {
            outBytes4 := mload(add(inBytes, 32))
        }
    }

    function executeMetaTransaction(address userAddress,
        bytes memory functionSignature, bytes32 sigR, bytes32 sigS, uint8 sigV) external payable returns (bytes memory) {
        bytes4 destinationFunctionSig = convertBytesToBytes4(functionSignature);
        require(destinationFunctionSig != msg.sig, "Wrong functionSignature");
        MetaTransaction memory metaTx = MetaTransaction({
        nonce : nonces[userAddress],
        from : userAddress,
        functionSignature : functionSignature
        });
        require(verify(userAddress, metaTx, sigR, sigS, sigV), "Signer and signature do not match");
        nonces[userAddress] = nonces[userAddress].add(1);
        // Append userAddress at the end to extract it from calling context
        (bool success, bytes memory returnData) = address(this).call(abi.encodePacked(functionSignature, userAddress));

        require(success, "Function call not successful");
        emit MetaTransactionExecuted(userAddress, msg.sender, functionSignature);
        return returnData;
    }

    function hashMetaTransaction(MetaTransaction memory metaTx) internal pure returns (bytes32) {
        return keccak256(abi.encode(
                META_TRANSACTION_TYPEHASH,
                metaTx.nonce,
                metaTx.from,
                keccak256(metaTx.functionSignature)
            ));
    }

    function getNonce(address user) external view returns (uint256 nonce) {
        nonce = nonces[user];
    }

    function verify(address user, MetaTransaction memory metaTx, bytes32 sigR, bytes32 sigS, uint8 sigV) internal view returns (bool) {
        address signer = ecrecover(toTypedMessageHash(hashMetaTransaction(metaTx)), sigV, sigR, sigS);
        require(signer != address(0), "Invalid signature");
        return signer == user;
    }

    function _msgSender() internal view virtual override returns (address payable sender) {
        if (msg.sender == address(this)) {
            bytes memory array = msg.data;
            uint256 index = msg.data.length;
            assembly {
            // Load the 32 bytes word from memory with the address on the lower 20 bytes, and mask those.
                sender := and(mload(add(array, index)), 0xffffffffffffffffffffffffffffffffffffffff)
            }
        } else {
            sender = msg.sender;
        }
        return sender;
    }

    function getSalt() internal pure returns (bytes32) {
        return bytes32(getChainID());
    }

    function getChainID() internal pure returns (uint256 id) {
        assembly {
            id := chainid()
        }
    }

    function getDomainSeparator() private view returns (bytes32) {
        return domainSeparator;
    }

    /**
    * Accept message hash and returns hash message in EIP712 compatible form
    * So that it can be used to recover signer from signature signed using EIP712 formatted data
    * https://eips.ethereum.org/EIPS/eip-712
    * "\\x19" makes the encoding deterministic
    * "\\x01" is the version byte to make it compatible to EIP-191
    */
    function toTypedMessageHash(bytes32 messageHash) internal view returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x01", getDomainSeparator(), messageHash));
    }

    /**
         * @dev verifies the call result and bubbles up revert reason for failed calls
         *
         * @param success : outcome of forwarded call
         * @param returndata : returned data from the frowarded call
         * @param errorMessage : fallback error message to show
         */
    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure {
        if (!success) {
            // 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

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}
          

@openzeppelin/contracts-upgradeable/token/ERC1155/IERC1155Upgradeable.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

import "../../introspection/IERC165Upgradeable.sol";

/**
 * @dev Required interface of an ERC1155 compliant contract, as defined in the
 * https://eips.ethereum.org/EIPS/eip-1155[EIP].
 *
 * _Available since v3.1._
 */
interface IERC1155Upgradeable is IERC165Upgradeable {
    /**
     * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
     */
    event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);

    /**
     * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
     * transfers.
     */
    event TransferBatch(address indexed operator, address indexed from, address indexed to, uint256[] ids, uint256[] values);

    /**
     * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
     * `approved`.
     */
    event ApprovalForAll(address indexed account, address indexed operator, bool approved);

    /**
     * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
     *
     * If an {URI} event was emitted for `id`, the standard
     * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
     * returned by {IERC1155MetadataURI-uri}.
     */
    event URI(string value, uint256 indexed id);

    /**
     * @dev Returns the amount of tokens of token type `id` owned by `account`.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function balanceOf(address account, uint256 id) external view returns (uint256);

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
     *
     * Requirements:
     *
     * - `accounts` and `ids` must have the same length.
     */
    function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids) external view returns (uint256[] memory);

    /**
     * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
     *
     * Emits an {ApprovalForAll} event.
     *
     * Requirements:
     *
     * - `operator` cannot be the caller.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
     *
     * See {setApprovalForAll}.
     */
    function isApprovedForAll(address account, address operator) external view returns (bool);

    /**
     * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - If the caller is not `from`, it must be have been approved to spend ``from``'s tokens via {setApprovalForAll}.
     * - `from` must have a balance of tokens of type `id` of at least `amount`.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function safeTransferFrom(address from, address to, uint256 id, uint256 amount, bytes calldata data) external;

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function safeBatchTransferFrom(address from, address to, uint256[] calldata ids, uint256[] calldata amounts, bytes calldata data) external;
}
          

@rarible/transfer-manager/contracts/lib/LibDeal.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.7.6;
pragma abicoder v2;

import "@rarible/lib-part/contracts/LibPart.sol";
import "@rarible/lib-asset/contracts/LibAsset.sol";
import "./LibFeeSide.sol";

library LibDeal {
    struct DealSide {
        LibAsset.Asset asset;
        LibPart.Part[] payouts;
        LibPart.Part[] originFees;
        address proxy;
        address from;
    }
}
          

Compiler Settings

{"outputSelection":{"*":{"*":["abi","evm.bytecode","evm.deployedBytecode","evm.methodIdentifiers"]}},"optimizer":{"runs":200,"enabled":true},"metadata":{"useLiteralContent":true,"bytecodeHash":"ipfs"},"libraries":{},"evmVersion":"istanbul"}
              

Contract ABI

[{"type":"event","name":"BuyerFeeAmountChanged","inputs":[{"type":"uint256","name":"oldValue","internalType":"uint256","indexed":false},{"type":"uint256","name":"newValue","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Cancel","inputs":[{"type":"bytes32","name":"hash","internalType":"bytes32","indexed":false}],"anonymous":false},{"type":"event","name":"FeeReceiverChanged","inputs":[{"type":"address","name":"oldValue","internalType":"address","indexed":false},{"type":"address","name":"newValue","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"Match","inputs":[{"type":"bytes32","name":"leftHash","internalType":"bytes32","indexed":false},{"type":"bytes32","name":"rightHash","internalType":"bytes32","indexed":false},{"type":"uint256","name":"newLeftFill","internalType":"uint256","indexed":false},{"type":"uint256","name":"newRightFill","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"MatcherChange","inputs":[{"type":"bytes4","name":"assetType","internalType":"bytes4","indexed":true},{"type":"address","name":"matcher","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"MetaTransactionExecuted","inputs":[{"type":"address","name":"userAddress","internalType":"address","indexed":false},{"type":"address","name":"relayerAddress","internalType":"address payable","indexed":false},{"type":"bytes","name":"functionSignature","internalType":"bytes","indexed":false}],"anonymous":false},{"type":"event","name":"OwnershipTransferred","inputs":[{"type":"address","name":"previousOwner","internalType":"address","indexed":true},{"type":"address","name":"newOwner","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"ProxyChange","inputs":[{"type":"bytes4","name":"assetType","internalType":"bytes4","indexed":true},{"type":"address","name":"proxy","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"SellerFeeAmountChanged","inputs":[{"type":"uint256","name":"oldValue","internalType":"uint256","indexed":false},{"type":"uint256","name":"newValue","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"__ExchangeV2_init","inputs":[{"type":"address","name":"_transferProxy","internalType":"address"},{"type":"address","name":"_erc20TransferProxy","internalType":"address"},{"type":"uint256","name":"newProtocolFee","internalType":"uint256"},{"type":"address","name":"newDefaultFeeReceiver","internalType":"address"},{"type":"address","name":"newRoyaltiesProvider","internalType":"contract IRoyaltiesProvider"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"cancel","inputs":[{"type":"tuple","name":"order","internalType":"struct LibOrder.Order","components":[{"type":"address","name":"maker","internalType":"address"},{"type":"tuple","name":"makeAsset","internalType":"struct LibAsset.Asset","components":[{"type":"tuple","name":"assetType","internalType":"struct LibAsset.AssetType","components":[{"type":"bytes4","name":"assetClass","internalType":"bytes4"},{"type":"bytes","name":"data","internalType":"bytes"}]},{"type":"uint256","name":"value","internalType":"uint256"}]},{"type":"address","name":"taker","internalType":"address"},{"type":"tuple","name":"takeAsset","internalType":"struct LibAsset.Asset","components":[{"type":"tuple","name":"assetType","internalType":"struct LibAsset.AssetType","components":[{"type":"bytes4","name":"assetClass","internalType":"bytes4"},{"type":"bytes","name":"data","internalType":"bytes"}]},{"type":"uint256","name":"value","internalType":"uint256"}]},{"type":"uint256","name":"salt","internalType":"uint256"},{"type":"uint256","name":"start","internalType":"uint256"},{"type":"uint256","name":"end","internalType":"uint256"},{"type":"bytes4","name":"dataType","internalType":"bytes4"},{"type":"bytes","name":"data","internalType":"bytes"}]}]},{"type":"function","stateMutability":"payable","outputs":[],"name":"directAcceptBid","inputs":[{"type":"tuple","name":"direct","internalType":"struct LibDirectTransfer.AcceptBid","components":[{"type":"address","name":"bidMaker","internalType":"address"},{"type":"uint256","name":"bidNftAmount","internalType":"uint256"},{"type":"bytes4","name":"nftAssetClass","internalType":"bytes4"},{"type":"bytes","name":"nftData","internalType":"bytes"},{"type":"uint256","name":"bidPaymentAmount","internalType":"uint256"},{"type":"address","name":"paymentToken","internalType":"address"},{"type":"uint256","name":"bidSalt","internalType":"uint256"},{"type":"uint256","name":"bidStart","internalType":"uint256"},{"type":"uint256","name":"bidEnd","internalType":"uint256"},{"type":"bytes4","name":"bidDataType","internalType":"bytes4"},{"type":"bytes","name":"bidData","internalType":"bytes"},{"type":"bytes","name":"bidSignature","internalType":"bytes"},{"type":"uint256","name":"sellOrderPaymentAmount","internalType":"uint256"},{"type":"uint256","name":"sellOrderNftAmount","internalType":"uint256"},{"type":"bytes","name":"sellOrderData","internalType":"bytes"}]}]},{"type":"function","stateMutability":"payable","outputs":[],"name":"directPurchase","inputs":[{"type":"tuple","name":"direct","internalType":"struct LibDirectTransfer.Purchase","components":[{"type":"address","name":"sellOrderMaker","internalType":"address"},{"type":"uint256","name":"sellOrderNftAmount","internalType":"uint256"},{"type":"bytes4","name":"nftAssetClass","internalType":"bytes4"},{"type":"bytes","name":"nftData","internalType":"bytes"},{"type":"uint256","name":"sellOrderPaymentAmount","internalType":"uint256"},{"type":"address","name":"paymentToken","internalType":"address"},{"type":"uint256","name":"sellOrderSalt","internalType":"uint256"},{"type":"uint256","name":"sellOrderStart","internalType":"uint256"},{"type":"uint256","name":"sellOrderEnd","internalType":"uint256"},{"type":"bytes4","name":"sellOrderDataType","internalType":"bytes4"},{"type":"bytes","name":"sellOrderData","internalType":"bytes"},{"type":"bytes","name":"sellOrderSignature","internalType":"bytes"},{"type":"uint256","name":"buyOrderPaymentAmount","internalType":"uint256"},{"type":"uint256","name":"buyOrderNftAmount","internalType":"uint256"},{"type":"bytes","name":"buyOrderData","internalType":"bytes"}]}]},{"type":"function","stateMutability":"payable","outputs":[{"type":"bytes","name":"","internalType":"bytes"}],"name":"executeMetaTransaction","inputs":[{"type":"address","name":"userAddress","internalType":"address"},{"type":"bytes","name":"functionSignature","internalType":"bytes"},{"type":"bytes32","name":"sigR","internalType":"bytes32"},{"type":"bytes32","name":"sigS","internalType":"bytes32"},{"type":"uint8","name":"sigV","internalType":"uint8"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"fills","inputs":[{"type":"bytes32","name":"","internalType":"bytes32"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"nonce","internalType":"uint256"}],"name":"getNonce","inputs":[{"type":"address","name":"user","internalType":"address"}]},{"type":"function","stateMutability":"payable","outputs":[],"name":"matchOrders","inputs":[{"type":"tuple","name":"orderLeft","internalType":"struct LibOrder.Order","components":[{"type":"address","name":"maker","internalType":"address"},{"type":"tuple","name":"makeAsset","internalType":"struct LibAsset.Asset","components":[{"type":"tuple","name":"assetType","internalType":"struct LibAsset.AssetType","components":[{"type":"bytes4","name":"assetClass","internalType":"bytes4"},{"type":"bytes","name":"data","internalType":"bytes"}]},{"type":"uint256","name":"value","internalType":"uint256"}]},{"type":"address","name":"taker","internalType":"address"},{"type":"tuple","name":"takeAsset","internalType":"struct LibAsset.Asset","components":[{"type":"tuple","name":"assetType","internalType":"struct LibAsset.AssetType","components":[{"type":"bytes4","name":"assetClass","internalType":"bytes4"},{"type":"bytes","name":"data","internalType":"bytes"}]},{"type":"uint256","name":"value","internalType":"uint256"}]},{"type":"uint256","name":"salt","internalType":"uint256"},{"type":"uint256","name":"start","internalType":"uint256"},{"type":"uint256","name":"end","internalType":"uint256"},{"type":"bytes4","name":"dataType","internalType":"bytes4"},{"type":"bytes","name":"data","internalType":"bytes"}]},{"type":"bytes","name":"signatureLeft","internalType":"bytes"},{"type":"tuple","name":"orderRight","internalType":"struct LibOrder.Order","components":[{"type":"address","name":"maker","internalType":"address"},{"type":"tuple","name":"makeAsset","internalType":"struct LibAsset.Asset","components":[{"type":"tuple","name":"assetType","internalType":"struct LibAsset.AssetType","components":[{"type":"bytes4","name":"assetClass","internalType":"bytes4"},{"type":"bytes","name":"data","internalType":"bytes"}]},{"type":"uint256","name":"value","internalType":"uint256"}]},{"type":"address","name":"taker","internalType":"address"},{"type":"tuple","name":"takeAsset","internalType":"struct LibAsset.Asset","components":[{"type":"tuple","name":"assetType","internalType":"struct LibAsset.AssetType","components":[{"type":"bytes4","name":"assetClass","internalType":"bytes4"},{"type":"bytes","name":"data","internalType":"bytes"}]},{"type":"uint256","name":"value","internalType":"uint256"}]},{"type":"uint256","name":"salt","internalType":"uint256"},{"type":"uint256","name":"start","internalType":"uint256"},{"type":"uint256","name":"end","internalType":"uint256"},{"type":"bytes4","name":"dataType","internalType":"bytes4"},{"type":"bytes","name":"data","internalType":"bytes"}]},{"type":"bytes","name":"signatureRight","internalType":"bytes"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"owner","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"receiver","internalType":"address"},{"type":"uint48","name":"buyerAmount","internalType":"uint48"},{"type":"uint48","name":"sellerAmount","internalType":"uint48"}],"name":"protocolFee","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"renounceOwnership","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"contract IRoyaltiesProvider"}],"name":"royaltiesRegistry","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setAllProtocolFeeData","inputs":[{"type":"address","name":"_receiver","internalType":"address"},{"type":"uint48","name":"_buyerAmount","internalType":"uint48"},{"type":"uint48","name":"_sellerAmount","internalType":"uint48"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setAssetMatcher","inputs":[{"type":"bytes4","name":"assetType","internalType":"bytes4"},{"type":"address","name":"matcher","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setPrtocolFeeBuyerAmount","inputs":[{"type":"uint48","name":"_buyerAmount","internalType":"uint48"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setPrtocolFeeReceiver","inputs":[{"type":"address","name":"_receiver","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setPrtocolFeeSellerAmount","inputs":[{"type":"uint48","name":"_sellerAmount","internalType":"uint48"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setRoyaltiesRegistry","inputs":[{"type":"address","name":"newRoyaltiesRegistry","internalType":"contract IRoyaltiesProvider"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setTransferProxy","inputs":[{"type":"bytes4","name":"assetType","internalType":"bytes4"},{"type":"address","name":"proxy","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"transferOwnership","inputs":[{"type":"address","name":"newOwner","internalType":"address"}]}]
              

Contract Creation Code

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