{ "language": "Solidity", "sources": { "@rarible/exchange-v2/contracts/ExchangeV2.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\npragma abicoder v2;\n\nimport \"./ExchangeV2Core.sol\";\nimport \"./RaribleTransferManager.sol\";\nimport \"@rarible/royalties/contracts/IRoyaltiesProvider.sol\";\n\ncontract ExchangeV2 is ExchangeV2Core, RaribleTransferManager {\n function __ExchangeV2_init(\n INftTransferProxy _transferProxy,\n IERC20TransferProxy _erc20TransferProxy,\n uint newProtocolFee,\n address newDefaultFeeReceiver,\n IRoyaltiesProvider newRoyaltiesProvider\n ) external initializer {\n __Context_init_unchained();\n __Ownable_init_unchained();\n __TransferExecutor_init_unchained(_transferProxy, _erc20TransferProxy);\n __RaribleTransferManager_init_unchained(newProtocolFee, newDefaultFeeReceiver, newRoyaltiesProvider);\n __OrderValidator_init_unchained();\n }\n}" }, "@rarible/royalties/contracts/LibPart.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.2 <0.8.0;\n\nlibrary LibPart {\n bytes32 public constant TYPE_HASH = keccak256(\"Part(address account,uint96 value)\");\n\n struct Part {\n address payable account;\n uint96 value;\n }\n\n function hash(Part memory part) internal pure returns (bytes32) {\n return keccak256(abi.encode(TYPE_HASH, part.account, part.value));\n }\n}\n" }, "@rarible/royalties/contracts/IRoyaltiesProvider.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.2 <0.8.0;\npragma abicoder v2;\n\nimport \"./LibPart.sol\";\n\ninterface IRoyaltiesProvider {\n function getRoyalties(address token, uint tokenId) external returns (LibPart.Part[] memory);\n}\n" }, "@rarible/libraries/contracts/LibSignature.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.7.0;\n\nlibrary LibSignature {\n /**\n * @dev Returns the address that signed a hashed message (`hash`) with\n * `signature`. This address can then be used for verification purposes.\n *\n * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\n * this function rejects them by requiring the `s` value to be in the lower\n * half order, and the `v` value to be either 27 or 28.\n *\n * IMPORTANT: `hash` _must_ be the result of a hash operation for the\n * verification to be secure: it is possible to craft signatures that\n * recover to arbitrary addresses for non-hashed data. A safe way to ensure\n * this is by receiving a hash of the original message (which may otherwise\n * be too long), and then calling {toEthSignedMessageHash} on it.\n */\n function recover(bytes32 hash, bytes memory signature)\n internal\n pure\n returns (address)\n {\n // Check the signature length\n if (signature.length != 65) {\n revert(\"ECDSA: invalid signature length\");\n }\n\n // Divide the signature in r, s and v variables\n bytes32 r;\n bytes32 s;\n uint8 v;\n\n // ecrecover takes the signature parameters, and the only way to get them\n // currently is to use assembly.\n // solhint-disable-next-line no-inline-assembly\n assembly {\n r := mload(add(signature, 0x20))\n s := mload(add(signature, 0x40))\n v := byte(0, mload(add(signature, 0x60)))\n }\n\n return recover(hash, v, r, s);\n }\n\n /**\n * @dev Overload of {ECDSA-recover-bytes32-bytes-} that receives the `v`,\n * `r` and `s` signature fields separately.\n */\n function recover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal pure returns (address) {\n // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature\n // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines\n // the valid range for s in (281): 0 < s < secp256k1n ÷ 2 + 1, and for v in (282): v ∈ {27, 28}. Most\n // signatures from current libraries generate a unique signature with an s-value in the lower half order.\n //\n // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value\n // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or\n // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept\n // these malleable signatures as well.\n require(\n uint256(s) <=\n 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0,\n \"ECDSA: invalid signature 's' value\"\n );\n\n // If the signature is valid (and not malleable), return the signer address\n // v > 30 is a special case, we need to adjust hash with \"\\x19Ethereum Signed Message:\\n32\"\n // and v = v - 4\n address signer;\n if (v > 30) {\n require(\n v - 4 == 27 || v - 4 == 28,\n \"ECDSA: invalid signature 'v' value\"\n );\n signer = ecrecover(toEthSignedMessageHash(hash), v - 4, r, s);\n } else {\n require(v == 27 || v == 28, \"ECDSA: invalid signature 'v' value\");\n signer = ecrecover(hash, v, r, s);\n }\n\n require(signer != address(0), \"ECDSA: invalid signature\");\n\n return signer;\n }\n\n /**\n * @dev Returns an Ethereum Signed Message, created from a `hash`. This\n * replicates the behavior of the\n * https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_sign[`eth_sign`]\n * JSON-RPC method.\n *\n * See {recover}.\n */\n function toEthSignedMessageHash(bytes32 hash)\n internal\n pure\n returns (bytes32)\n {\n // 32 is the length in bytes of hash,\n // enforced by the type signature above\n return\n keccak256(\n abi.encodePacked(\"\\x19Ethereum Signed Message:\\n32\", hash)\n );\n }\n}\n" }, "@rarible/lib-asset/contracts/LibAsset.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\n\nlibrary LibAsset {\n bytes4 constant public ETH_ASSET_CLASS = bytes4(keccak256(\"ETH\"));\n bytes4 constant public ERC20_ASSET_CLASS = bytes4(keccak256(\"ERC20\"));\n bytes4 constant public ERC721_ASSET_CLASS = bytes4(keccak256(\"ERC721\"));\n bytes4 constant public ERC1155_ASSET_CLASS = bytes4(keccak256(\"ERC1155\"));\n bytes4 constant public COLLECTION = bytes4(keccak256(\"COLLECTION\"));\n bytes4 constant public CRYPTO_PUNKS = bytes4(keccak256(\"CRYPTO_PUNKS\"));\n\n bytes32 constant ASSET_TYPE_TYPEHASH = keccak256(\n \"AssetType(bytes4 assetClass,bytes data)\"\n );\n\n bytes32 constant ASSET_TYPEHASH = keccak256(\n \"Asset(AssetType assetType,uint256 value)AssetType(bytes4 assetClass,bytes data)\"\n );\n\n struct AssetType {\n bytes4 assetClass;\n bytes data;\n }\n\n struct Asset {\n AssetType assetType;\n uint value;\n }\n\n function hash(AssetType memory assetType) internal pure returns (bytes32) {\n return keccak256(abi.encode(\n ASSET_TYPE_TYPEHASH,\n assetType.assetClass,\n keccak256(assetType.data)\n ));\n }\n\n function hash(Asset memory asset) internal pure returns (bytes32) {\n return keccak256(abi.encode(\n ASSET_TYPEHASH,\n hash(asset.assetType),\n asset.value\n ));\n }\n\n}\n" }, "@rarible/lazy-mint/contracts/erc-721/LibERC721LazyMint.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.2 <0.8.0;\n\nimport \"@rarible/royalties/contracts/LibPart.sol\";\n\nlibrary LibERC721LazyMint {\n bytes4 constant public ERC721_LAZY_ASSET_CLASS = bytes4(keccak256(\"ERC721_LAZY\"));\n bytes4 constant _INTERFACE_ID_MINT_AND_TRANSFER = 0x8486f69f;\n\n struct Mint721Data {\n uint tokenId;\n string tokenURI;\n LibPart.Part[] creators;\n LibPart.Part[] royalties;\n bytes[] signatures;\n }\n\n bytes32 public constant MINT_AND_TRANSFER_TYPEHASH = keccak256(\"Mint721(uint256 tokenId,string tokenURI,Part[] creators,Part[] royalties)Part(address account,uint96 value)\");\n\n function hash(Mint721Data memory data) internal pure returns (bytes32) {\n bytes32[] memory royaltiesBytes = new bytes32[](data.royalties.length);\n for (uint i = 0; i < data.royalties.length; i++) {\n royaltiesBytes[i] = LibPart.hash(data.royalties[i]);\n }\n bytes32[] memory creatorsBytes = new bytes32[](data.creators.length);\n for (uint i = 0; i < data.creators.length; i++) {\n creatorsBytes[i] = LibPart.hash(data.creators[i]);\n }\n return keccak256(abi.encode(\n MINT_AND_TRANSFER_TYPEHASH,\n data.tokenId,\n keccak256(bytes(data.tokenURI)),\n keccak256(abi.encodePacked(creatorsBytes)),\n keccak256(abi.encodePacked(royaltiesBytes))\n ));\n }\n\n}\n" }, "@rarible/lazy-mint/contracts/erc-1155/LibERC1155LazyMint.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.2 <0.8.0;\n\nimport \"@rarible/royalties/contracts/LibPart.sol\";\n\nlibrary LibERC1155LazyMint {\n bytes4 constant public ERC1155_LAZY_ASSET_CLASS = bytes4(keccak256(\"ERC1155_LAZY\"));\n bytes4 constant _INTERFACE_ID_MINT_AND_TRANSFER = 0x6db15a0f;\n\n struct Mint1155Data {\n uint tokenId;\n string tokenURI;\n uint supply;\n LibPart.Part[] creators;\n LibPart.Part[] royalties;\n bytes[] signatures;\n }\n\n bytes32 public constant MINT_AND_TRANSFER_TYPEHASH = keccak256(\"Mint1155(uint256 tokenId,uint256 supply,string tokenURI,Part[] creators,Part[] royalties)Part(address account,uint96 value)\");\n\n function hash(Mint1155Data memory data) internal pure returns (bytes32) {\n bytes32[] memory royaltiesBytes = new bytes32[](data.royalties.length);\n for (uint i = 0; i < data.royalties.length; i++) {\n royaltiesBytes[i] = LibPart.hash(data.royalties[i]);\n }\n bytes32[] memory creatorsBytes = new bytes32[](data.creators.length);\n for (uint i = 0; i < data.creators.length; i++) {\n creatorsBytes[i] = LibPart.hash(data.creators[i]);\n }\n return keccak256(abi.encode(\n MINT_AND_TRANSFER_TYPEHASH,\n data.tokenId,\n data.supply,\n keccak256(bytes(data.tokenURI)),\n keccak256(abi.encodePacked(creatorsBytes)),\n keccak256(abi.encodePacked(royaltiesBytes))\n ));\n }\n}\n" }, "@rarible/exchange-v2/contracts/lib/PerTrillionLibrary.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\n\nimport '@openzeppelin/contracts-upgradeable/math/SafeMathUpgradeable.sol';\n\nlibrary PerTrillionLibrary {\n using SafeMathUpgradeable for uint256;\n\n uint96 public constant TRILLION = 1000000000000;\n\n function perTrillion(uint256 value, uint96 ptValue)\n internal\n pure\n returns (uint256)\n {\n return value.mul(ptValue).div(TRILLION);\n }\n}\n" }, "@rarible/exchange-v2/contracts/lib/LibTransfer.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\n\nlibrary LibTransfer {\n function transferEth(address to, uint value) internal {\n (bool success,) = to.call{ value: value }(\"\");\n require(success, \"transfer failed\");\n }\n}\n" }, "@rarible/exchange-v2/contracts/lib/LibMath.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\n\nimport \"@openzeppelin/contracts-upgradeable/math/SafeMathUpgradeable.sol\";\n\nlibrary LibMath {\n using SafeMathUpgradeable for uint;\n\n /// @dev Calculates partial value given a numerator and denominator rounded down.\n /// Reverts if rounding error is >= 0.1%\n /// @param numerator Numerator.\n /// @param denominator Denominator.\n /// @param target Value to calculate partial of.\n /// @return partialAmount value of target rounded down.\n function safeGetPartialAmountFloor(\n uint256 numerator,\n uint256 denominator,\n uint256 target\n ) internal pure returns (uint256 partialAmount) {\n if (isRoundingErrorFloor(numerator, denominator, target)) {\n revert(\"rounding error\");\n }\n partialAmount = numerator.mul(target).div(denominator);\n }\n\n /// @dev Checks if rounding error >= 0.1% when rounding down.\n /// @param numerator Numerator.\n /// @param denominator Denominator.\n /// @param target Value to multiply with numerator/denominator.\n /// @return isError Rounding error is present.\n function isRoundingErrorFloor(\n uint256 numerator,\n uint256 denominator,\n uint256 target\n ) internal pure returns (bool isError) {\n if (denominator == 0) {\n revert(\"division by zero\");\n }\n\n // The absolute rounding error is the difference between the rounded\n // value and the ideal value. The relative rounding error is the\n // absolute rounding error divided by the absolute value of the\n // ideal value. This is undefined when the ideal value is zero.\n //\n // The ideal value is `numerator * target / denominator`.\n // Let's call `numerator * target % denominator` the remainder.\n // The absolute error is `remainder / denominator`.\n //\n // When the ideal value is zero, we require the absolute error to\n // be zero. Fortunately, this is always the case. The ideal value is\n // zero iff `numerator == 0` and/or `target == 0`. In this case the\n // remainder and absolute error are also zero.\n if (target == 0 || numerator == 0) {\n return false;\n }\n\n // Otherwise, we want the relative rounding error to be strictly\n // less than 0.1%.\n // The relative error is `remainder / (numerator * target)`.\n // We want the relative error less than 1 / 1000:\n // remainder / (numerator * target) < 1 / 1000\n // or equivalently:\n // 1000 * remainder < numerator * target\n // so we have a rounding error iff:\n // 1000 * remainder >= numerator * target\n uint256 remainder = mulmod(\n target,\n numerator,\n denominator\n );\n isError = remainder.mul(1000) >= numerator.mul(target);\n }\n\n function safeGetPartialAmountCeil(\n uint256 numerator,\n uint256 denominator,\n uint256 target\n ) internal pure returns (uint256 partialAmount) {\n if (isRoundingErrorCeil(numerator, denominator, target)) {\n revert(\"rounding error\");\n }\n partialAmount = numerator.mul(target).add(denominator.sub(1)).div(denominator);\n }\n\n /// @dev Checks if rounding error >= 0.1% when rounding up.\n /// @param numerator Numerator.\n /// @param denominator Denominator.\n /// @param target Value to multiply with numerator/denominator.\n /// @return isError Rounding error is present.\n function isRoundingErrorCeil(\n uint256 numerator,\n uint256 denominator,\n uint256 target\n ) internal pure returns (bool isError) {\n if (denominator == 0) {\n revert(\"division by zero\");\n }\n\n // See the comments in `isRoundingError`.\n if (target == 0 || numerator == 0) {\n // When either is zero, the ideal value and rounded value are zero\n // and there is no rounding error. (Although the relative error\n // is undefined.)\n return false;\n }\n // Compute remainder as before\n uint256 remainder = mulmod(\n target,\n numerator,\n denominator\n );\n remainder = denominator.sub(remainder) % denominator;\n isError = remainder.mul(1000) >= numerator.mul(target);\n return isError;\n }\n}\n" }, "@rarible/exchange-v2/contracts/lib/BpLibrary.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\n\nimport \"@openzeppelin/contracts-upgradeable/math/SafeMathUpgradeable.sol\";\n\nlibrary BpLibrary {\n using SafeMathUpgradeable for uint;\n\n function bp(uint value, uint bpValue) internal pure returns (uint) {\n return value.mul(bpValue).div(10000);\n }\n}\n" }, "@rarible/exchange-v2/contracts/interfaces/IERC1271.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\n\ninterface IERC1271 {\n\n /**\n * @dev Should return whether the signature provided is valid for the provided data\n * @param _hash Hash of the data signed on the behalf of address(this)\n * @param _signature Signature byte array associated with _data\n *\n * MUST return the bytes4 magic value 0x1626ba7e when function passes.\n * MUST NOT modify state (using STATICCALL for solc < 0.5, view modifier for solc > 0.5)\n * MUST allow external calls\n */\n function isValidSignature(bytes32 _hash, bytes calldata _signature) virtual external view returns (bytes4 magicValue);\n}" }, "@rarible/exchange-v2/contracts/TransferExecutor.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\npragma abicoder v2;\n\nimport \"@rarible/exchange-interfaces/contracts/ITransferProxy.sol\";\nimport \"@rarible/exchange-interfaces/contracts/INftTransferProxy.sol\";\nimport \"@rarible/exchange-interfaces/contracts/IERC20TransferProxy.sol\";\nimport \"./ITransferExecutor.sol\";\nimport \"@openzeppelin/contracts-upgradeable/proxy/Initializable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol\";\nimport \"./lib/LibTransfer.sol\";\n\nabstract contract TransferExecutor is Initializable, OwnableUpgradeable, ITransferExecutor {\n using LibTransfer for address;\n\n mapping (bytes4 => address) proxies;\n\n event ProxyChange(bytes4 indexed assetType, address proxy);\n\n function __TransferExecutor_init_unchained(INftTransferProxy transferProxy, IERC20TransferProxy erc20TransferProxy) internal {\n proxies[LibAsset.ERC20_ASSET_CLASS] = address(erc20TransferProxy);\n proxies[LibAsset.ERC721_ASSET_CLASS] = address(transferProxy);\n proxies[LibAsset.ERC1155_ASSET_CLASS] = address(transferProxy);\n }\n\n function setTransferProxy(bytes4 assetType, address proxy) external onlyOwner {\n proxies[assetType] = proxy;\n emit ProxyChange(assetType, proxy);\n }\n\n function transfer(\n LibAsset.Asset memory asset,\n address from,\n address to,\n bytes4 transferDirection,\n bytes4 transferType\n ) internal override {\n if (asset.assetType.assetClass == LibAsset.ETH_ASSET_CLASS) {\n to.transferEth(asset.value);\n } else if (asset.assetType.assetClass == LibAsset.ERC20_ASSET_CLASS) {\n (address token) = abi.decode(asset.assetType.data, (address));\n IERC20TransferProxy(proxies[LibAsset.ERC20_ASSET_CLASS]).erc20safeTransferFrom(IERC20Upgradeable(token), from, to, asset.value);\n } else if (asset.assetType.assetClass == LibAsset.ERC721_ASSET_CLASS) {\n (address token, uint tokenId) = abi.decode(asset.assetType.data, (address, uint256));\n require(asset.value == 1, \"erc721 value error\");\n INftTransferProxy(proxies[LibAsset.ERC721_ASSET_CLASS]).erc721safeTransferFrom(IERC721Upgradeable(token), from, to, tokenId);\n } else if (asset.assetType.assetClass == LibAsset.ERC1155_ASSET_CLASS) {\n (address token, uint tokenId) = abi.decode(asset.assetType.data, (address, uint256));\n INftTransferProxy(proxies[LibAsset.ERC1155_ASSET_CLASS]).erc1155safeTransferFrom(IERC1155Upgradeable(token), from, to, tokenId, asset.value, \"\");\n } else {\n ITransferProxy(proxies[asset.assetType.assetClass]).transfer(asset, from, to);\n }\n emit Transfer(asset, from, to, transferDirection, transferType);\n }\n\n uint256[49] private __gap;\n}\n" }, "@rarible/exchange-v2/contracts/RaribleTransferManager.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\npragma abicoder v2;\n\nimport \"@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/math/SafeMathUpgradeable.sol\";\nimport \"@rarible/lib-asset/contracts/LibAsset.sol\";\nimport \"@rarible/royalties/contracts/IRoyaltiesProvider.sol\";\nimport \"@rarible/lazy-mint/contracts/erc-721/LibERC721LazyMint.sol\";\nimport \"@rarible/lazy-mint/contracts/erc-1155/LibERC1155LazyMint.sol\";\nimport \"./LibFill.sol\";\nimport \"./LibFeeSide.sol\";\nimport \"./ITransferManager.sol\";\nimport \"./TransferExecutor.sol\";\nimport \"./lib/BpLibrary.sol\";\nimport \"./lib/PerTrillionLibrary.sol\";\n\nabstract contract RaribleTransferManager is OwnableUpgradeable, ITransferManager {\n using BpLibrary for uint;\n using SafeMathUpgradeable for uint;\n using PerTrillionLibrary for uint;\n\n uint public protocolFee;\n IRoyaltiesProvider public royaltiesRegistry;\n\n address public defaultFeeReceiver;\n mapping(address => address) public feeReceivers;\n\n function __RaribleTransferManager_init_unchained(\n uint newProtocolFee,\n address newDefaultFeeReceiver,\n IRoyaltiesProvider newRoyaltiesProvider\n ) internal initializer {\n protocolFee = newProtocolFee;\n defaultFeeReceiver = newDefaultFeeReceiver;\n royaltiesRegistry = newRoyaltiesProvider;\n }\n\n function setRoyaltiesRegistry(IRoyaltiesProvider newRoyaltiesRegistry) external onlyOwner {\n royaltiesRegistry = newRoyaltiesRegistry;\n }\n\n function setProtocolFee(uint newProtocolFee) external onlyOwner {\n protocolFee = newProtocolFee;\n }\n\n function setDefaultFeeReceiver(address payable newDefaultFeeReceiver) external onlyOwner {\n defaultFeeReceiver = newDefaultFeeReceiver;\n }\n\n function setFeeReceiver(address token, address wallet) external onlyOwner {\n feeReceivers[token] = wallet;\n }\n\n function getFeeReceiver(address token) internal view returns (address) {\n address wallet = feeReceivers[token];\n if (wallet != address(0)) {\n return wallet;\n }\n return defaultFeeReceiver;\n }\n\n function doTransfers(\n LibAsset.AssetType memory makeMatch,\n LibAsset.AssetType memory takeMatch,\n LibFill.FillResult memory fill,\n LibOrder.Order memory leftOrder,\n LibOrder.Order memory rightOrder,\n LibOrderDataV2.DataV2 memory leftOrderData,\n LibOrderDataV2.DataV2 memory rightOrderData\n ) override internal returns (uint totalMakeValue, uint totalTakeValue) {\n LibFeeSide.FeeSide feeSide = LibFeeSide.getFeeSide(makeMatch.assetClass, takeMatch.assetClass);\n totalMakeValue = fill.leftValue;\n totalTakeValue = fill.rightValue;\n if (feeSide == LibFeeSide.FeeSide.MAKE) {\n totalMakeValue = doTransfersWithFees(fill.leftValue, leftOrder.maker, leftOrderData, rightOrderData, makeMatch, takeMatch, TO_TAKER);\n transferPayouts(takeMatch, fill.rightValue, rightOrder.maker, leftOrderData.payouts, TO_MAKER);\n } else if (feeSide == LibFeeSide.FeeSide.TAKE) {\n totalTakeValue = doTransfersWithFees(fill.rightValue, rightOrder.maker, rightOrderData, leftOrderData, takeMatch, makeMatch, TO_MAKER);\n transferPayouts(makeMatch, fill.leftValue, leftOrder.maker, rightOrderData.payouts, TO_TAKER);\n } else {\n transferPayouts(makeMatch, fill.leftValue, leftOrder.maker, rightOrderData.payouts, TO_TAKER);\n transferPayouts(takeMatch, fill.rightValue, rightOrder.maker, leftOrderData.payouts, TO_MAKER);\n }\n }\n\n function doTransfersWithFees(\n uint amount,\n address from,\n LibOrderDataV2.DataV2 memory dataCalculate,\n LibOrderDataV2.DataV2 memory dataNft,\n LibAsset.AssetType memory matchCalculate,\n LibAsset.AssetType memory matchNft,\n bytes4 transferDirection\n ) internal returns (uint totalAmount) {\n totalAmount = calculateTotalAmount(amount, protocolFee, dataCalculate.originFees);\n uint rest = transferProtocolFee(totalAmount, amount, from, matchCalculate, transferDirection);\n rest = transferRoyalties(matchCalculate, matchNft, rest, amount, from, transferDirection);\n rest = transferOriginFees(matchCalculate, rest, amount, dataCalculate.originFees, from, transferDirection, ORIGIN);\n rest = transferOriginFees(matchCalculate, rest, amount, dataNft.originFees, from, transferDirection, ORIGIN);\n transferPayouts(matchCalculate, rest, from, dataNft.payouts, transferDirection);\n }\n\n function transferProtocolFee(\n uint totalAmount,\n uint amount,\n address from,\n LibAsset.AssetType memory matchCalculate,\n bytes4 transferDirection\n ) internal returns (uint) {\n (uint rest, uint fee) = subFeeInBp(totalAmount, amount, protocolFee.mul(2));\n if (fee > 0) {\n address tokenAddress = address(0);\n if (matchCalculate.assetClass == LibAsset.ERC20_ASSET_CLASS) {\n tokenAddress = abi.decode(matchCalculate.data, (address));\n } else if (matchCalculate.assetClass == LibAsset.ERC1155_ASSET_CLASS) {\n uint tokenId;\n (tokenAddress, tokenId) = abi.decode(matchCalculate.data, (address, uint));\n }\n transfer(LibAsset.Asset(matchCalculate, fee), from, getFeeReceiver(tokenAddress), transferDirection, PROTOCOL);\n }\n return rest;\n }\n\n function transferRoyalties(\n LibAsset.AssetType memory matchCalculate,\n LibAsset.AssetType memory matchNft,\n uint rest,\n uint amount,\n address from,\n bytes4 transferDirection\n ) internal returns (uint) {\n LibPart.Part[] memory fees = getRoyaltiesByAssetType(matchNft);\n\n (uint result, uint totalRoyalties) = transferFees(matchCalculate, rest, amount, fees, from, transferDirection, ROYALTY);\n require(totalRoyalties <= 5000, \"Royalties are too high (>50%)\");\n return result;\n }\n\n function getRoyaltiesByAssetType(LibAsset.AssetType memory matchNft) internal returns (LibPart.Part[] memory) {\n if (matchNft.assetClass == LibAsset.ERC1155_ASSET_CLASS || matchNft.assetClass == LibAsset.ERC721_ASSET_CLASS) {\n (address token, uint tokenId) = abi.decode(matchNft.data, (address, uint));\n return royaltiesRegistry.getRoyalties(token, tokenId);\n } else if (matchNft.assetClass == LibERC1155LazyMint.ERC1155_LAZY_ASSET_CLASS) {\n (address token, LibERC1155LazyMint.Mint1155Data memory data) = abi.decode(matchNft.data, (address, LibERC1155LazyMint.Mint1155Data));\n return data.royalties;\n } else if (matchNft.assetClass == LibERC721LazyMint.ERC721_LAZY_ASSET_CLASS) {\n (address token, LibERC721LazyMint.Mint721Data memory data) = abi.decode(matchNft.data, (address, LibERC721LazyMint.Mint721Data));\n return data.royalties;\n }\n LibPart.Part[] memory empty;\n return empty;\n }\n\n function transferFees(\n LibAsset.AssetType memory matchCalculate,\n uint rest,\n uint amount,\n LibPart.Part[] memory fees,\n address from,\n bytes4 transferDirection,\n bytes4 transferType\n ) internal returns (uint restValue, uint totalFees) {\n totalFees = 0;\n restValue = rest;\n for (uint256 i = 0; i < fees.length; i++) {\n totalFees = totalFees.add(fees[i].value);\n (uint newRestValue, uint feeValue) = subFeeInBp(restValue, amount, fees[i].value);\n restValue = newRestValue;\n if (feeValue > 0) {\n transfer(LibAsset.Asset(matchCalculate, feeValue), from, fees[i].account, transferDirection, transferType);\n }\n }\n }\n\n function transferPayouts(\n LibAsset.AssetType memory matchCalculate,\n uint amount,\n address from,\n LibPart.Part[] memory payouts,\n bytes4 transferDirection\n ) internal {\n uint sumBps = 0;\n uint restValue = amount;\n for (uint256 i = 0; i < payouts.length - 1; i++) {\n uint currentAmount = amount.bp(payouts[i].value);\n sumBps = sumBps.add(payouts[i].value);\n if (currentAmount > 0) {\n restValue = restValue.sub(currentAmount);\n transfer(LibAsset.Asset(matchCalculate, currentAmount), from, payouts[i].account, transferDirection, PAYOUT);\n }\n }\n LibPart.Part memory lastPayout = payouts[payouts.length - 1];\n sumBps = sumBps.add(lastPayout.value);\n require(sumBps == 10000, \"Sum payouts Bps not equal 100%\");\n if (restValue > 0) {\n transfer(LibAsset.Asset(matchCalculate, restValue), from, lastPayout.account, transferDirection, PAYOUT);\n }\n }\n\n function calculateTotalAmount(\n uint amount,\n uint feeOnTopBp,\n LibPart.Part[] memory orderOriginFees\n ) internal pure returns (uint total){\n total = amount.add(amount.bp(feeOnTopBp));\n for (uint256 i = 0; i < orderOriginFees.length; i++) {\n total = total.add(amount.perTrillion(orderOriginFees[i].value));\n }\n }\n\n function subFeeInBp(uint value, uint total, uint feeInBp) internal pure returns (uint newValue, uint realFee) {\n return subFee(value, total.bp(feeInBp));\n }\n\n function subFee(uint value, uint fee) internal pure returns (uint newValue, uint realFee) {\n if (value > fee) {\n newValue = value.sub(fee);\n realFee = fee;\n } else {\n newValue = 0;\n realFee = value;\n }\n }\n\n function transferOriginFees(\n LibAsset.AssetType memory matchCalculate,\n uint rest,\n uint amount,\n LibPart.Part[] memory fees,\n address from,\n bytes4 transferDirection,\n bytes4 transferType\n ) internal returns (uint restValue) {\n restValue = rest;\n for (uint256 i = 0; i < fees.length; i++) {\n (uint newRestValue, uint feeValue) = subFee(restValue, amount.perTrillion(fees[i].value));\n restValue = newRestValue;\n if (feeValue > 0) {\n transfer(LibAsset.Asset(matchCalculate, feeValue), from, fees[i].account, transferDirection, transferType);\n }\n }\n }\n\n\n uint256[46] private __gap;\n}\n" }, "@rarible/exchange-v2/contracts/OrderValidator.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\n\nimport \"./interfaces/IERC1271.sol\";\nimport \"./LibOrder.sol\";\nimport \"@rarible/libraries/contracts/LibSignature.sol\";\nimport \"@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/drafts/EIP712Upgradeable.sol\";\n\nabstract contract OrderValidator is Initializable, ContextUpgradeable, EIP712Upgradeable {\n using LibSignature for bytes32;\n using AddressUpgradeable for address;\n \n bytes4 constant internal MAGICVALUE = 0x1626ba7e;\n\n function __OrderValidator_init_unchained() internal initializer {\n __EIP712_init_unchained(\"Exchange\", \"2\");\n }\n\n function validate(LibOrder.Order memory order, bytes memory signature) internal view {\n if (order.salt == 0) {\n if (order.maker != address(0)) {\n require(_msgSender() == order.maker, \"maker is not tx sender\");\n } else {\n order.maker = _msgSender();\n }\n } else {\n if (_msgSender() != order.maker) {\n bytes32 hash = LibOrder.hash(order);\n address signer;\n if (signature.length == 65) {\n signer = _hashTypedDataV4(hash).recover(signature);\n }\n if (signer != order.maker) {\n if (order.maker.isContract()) {\n require(\n IERC1271(order.maker).isValidSignature(_hashTypedDataV4(hash), signature) == MAGICVALUE,\n \"contract order signature verification error\"\n );\n } else {\n revert(\"order signature verification error\");\n }\n } \n }\n }\n }\n\n uint256[50] private __gap;\n}\n" }, "@rarible/exchange-v2/contracts/LibOrderDataV2.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\npragma abicoder v2;\n\nimport \"@rarible/royalties/contracts/LibPart.sol\";\n\nlibrary LibOrderDataV2 {\n bytes4 constant public V2 = bytes4(keccak256(\"V2\"));\n\n struct DataV2 {\n LibPart.Part[] payouts;\n LibPart.Part[] originFees;\n bool isMakeFill;\n }\n\n function decodeOrderDataV2(bytes memory data) internal pure returns (DataV2 memory orderData) {\n orderData = abi.decode(data, (DataV2));\n }\n\n}\n" }, "@rarible/exchange-v2/contracts/LibOrderDataV1.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\npragma abicoder v2;\n\nimport \"@rarible/royalties/contracts/LibPart.sol\";\n\nlibrary LibOrderDataV1 {\n bytes4 constant public V1 = bytes4(keccak256(\"V1\"));\n\n struct DataV1 {\n LibPart.Part[] payouts;\n LibPart.Part[] originFees;\n }\n\n function decodeOrderDataV1(bytes memory data) internal pure returns (DataV1 memory orderData) {\n orderData = abi.decode(data, (DataV1));\n }\n}\n" }, "@rarible/exchange-v2/contracts/LibOrderData.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\n\nimport \"./LibOrder.sol\";\n\nlibrary LibOrderData {\n function parse(LibOrder.Order memory order) pure internal returns (LibOrderDataV2.DataV2 memory dataOrder) {\n if (order.dataType == LibOrderDataV1.V1) {\n LibOrderDataV1.DataV1 memory dataV1 = LibOrderDataV1.decodeOrderDataV1(order.data);\n dataOrder.payouts = dataV1.payouts;\n dataOrder.originFees = dataV1.originFees;\n dataOrder.isMakeFill = false;\n } else if (order.dataType == LibOrderDataV2.V2) {\n dataOrder = LibOrderDataV2.decodeOrderDataV2(order.data);\n } else if (order.dataType == 0xffffffff) {\n } else {\n revert(\"Unknown Order data type\");\n }\n if (dataOrder.payouts.length == 0) {\n dataOrder.payouts = payoutSet(order.maker);\n }\n }\n\n function payoutSet(address orderAddress) pure internal returns (LibPart.Part[] memory) {\n LibPart.Part[] memory payout = new LibPart.Part[](1);\n payout[0].account = payable(orderAddress);\n payout[0].value = 10000;\n return payout;\n }\n}\n" }, "@rarible/exchange-v2/contracts/LibOrder.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\n\nimport \"./lib/LibMath.sol\";\nimport \"@rarible/lib-asset/contracts/LibAsset.sol\";\nimport \"./LibOrderDataV2.sol\";\nimport \"./LibOrderDataV1.sol\";\n\nlibrary LibOrder {\n using SafeMathUpgradeable for uint;\n\n bytes32 constant ORDER_TYPEHASH = keccak256(\n \"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)\"\n );\n\n struct Order {\n address maker;\n LibAsset.Asset makeAsset;\n address taker;\n LibAsset.Asset takeAsset;\n uint salt;\n uint start;\n uint end;\n bytes4 dataType;\n bytes data;\n }\n\n function calculateRemaining(Order memory order, uint fill, bool isMakeFill) internal pure returns (uint makeValue, uint takeValue) {\n if (isMakeFill){\n makeValue = order.makeAsset.value.sub(fill);\n takeValue = LibMath.safeGetPartialAmountFloor(order.takeAsset.value, order.makeAsset.value, makeValue);\n } else {\n takeValue = order.takeAsset.value.sub(fill);\n makeValue = LibMath.safeGetPartialAmountFloor(order.makeAsset.value, order.takeAsset.value, takeValue); \n } \n }\n\n function hashKey(Order memory order) internal pure returns (bytes32) {\n //order.data is in hash for V2 orders\n if (order.dataType == LibOrderDataV2.V2){\n return keccak256(abi.encode(\n order.maker,\n LibAsset.hash(order.makeAsset.assetType),\n LibAsset.hash(order.takeAsset.assetType),\n order.salt,\n order.data\n ));\n } else {\n return keccak256(abi.encode(\n order.maker,\n LibAsset.hash(order.makeAsset.assetType),\n LibAsset.hash(order.takeAsset.assetType),\n order.salt\n ));\n }\n \n }\n\n function hash(Order memory order) internal pure returns (bytes32) {\n return keccak256(abi.encode(\n ORDER_TYPEHASH,\n order.maker,\n LibAsset.hash(order.makeAsset),\n order.taker,\n LibAsset.hash(order.takeAsset),\n order.salt,\n order.start,\n order.end,\n order.dataType,\n keccak256(order.data)\n ));\n }\n\n function validate(LibOrder.Order memory order) internal view {\n require(order.start == 0 || order.start < block.timestamp, \"Order start validation failed\");\n require(order.end == 0 || order.end > block.timestamp, \"Order end validation failed\");\n }\n}\n" }, "@rarible/exchange-v2/contracts/LibFill.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\n\nimport \"./LibOrder.sol\";\nimport \"@openzeppelin/contracts-upgradeable/math/SafeMathUpgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/math/MathUpgradeable.sol\";\n\nlibrary LibFill {\n using SafeMathUpgradeable for uint;\n\n struct FillResult {\n uint leftValue;\n uint rightValue;\n }\n\n /**\n * @dev Should return filled values\n * @param leftOrder left order\n * @param rightOrder right order\n * @param leftOrderFill current fill of the left order (0 if order is unfilled)\n * @param rightOrderFill current fill of the right order (0 if order is unfilled)\n * @param leftIsMakeFill true if left orders fill is calculated from the make side, false if from the take side\n * @param rightIsMakeFill true if right orders fill is calculated from the make side, false if from the take side\n */\n function fillOrder(LibOrder.Order memory leftOrder, LibOrder.Order memory rightOrder, uint leftOrderFill, uint rightOrderFill, bool leftIsMakeFill, bool rightIsMakeFill) internal pure returns (FillResult memory) {\n (uint leftMakeValue, uint leftTakeValue) = LibOrder.calculateRemaining(leftOrder, leftOrderFill, leftIsMakeFill);\n (uint rightMakeValue, uint rightTakeValue) = LibOrder.calculateRemaining(rightOrder, rightOrderFill, rightIsMakeFill);\n\n //We have 3 cases here:\n if (rightTakeValue > leftMakeValue) { //1nd: left order should be fully filled\n return fillLeft(leftMakeValue, leftTakeValue, rightOrder.makeAsset.value, rightOrder.takeAsset.value);\n }//2st: right order should be fully filled or 3d: both should be fully filled if required values are the same\n return fillRight(leftOrder.makeAsset.value, leftOrder.takeAsset.value, rightMakeValue, rightTakeValue);\n }\n\n function fillRight(uint leftMakeValue, uint leftTakeValue, uint rightMakeValue, uint rightTakeValue) internal pure returns (FillResult memory result) {\n uint makerValue = LibMath.safeGetPartialAmountFloor(rightTakeValue, leftMakeValue, leftTakeValue);\n require(makerValue <= rightMakeValue, \"fillRight: unable to fill\");\n return FillResult(rightTakeValue, makerValue);\n }\n\n function fillLeft(uint leftMakeValue, uint leftTakeValue, uint rightMakeValue, uint rightTakeValue) internal pure returns (FillResult memory result) {\n uint rightTake = LibMath.safeGetPartialAmountFloor(leftTakeValue, rightMakeValue, rightTakeValue);\n require(rightTake <= leftMakeValue, \"fillLeft: unable to fill\");\n return FillResult(leftMakeValue, leftTakeValue);\n }\n}\n" }, "@rarible/exchange-v2/contracts/LibFeeSide.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\n\nimport \"@rarible/lib-asset/contracts/LibAsset.sol\";\n\nlibrary LibFeeSide {\n\n enum FeeSide {NONE, MAKE, TAKE}\n\n function getFeeSide(bytes4 make, bytes4 take) internal pure returns (FeeSide) {\n if (make == LibAsset.ETH_ASSET_CLASS) {\n return FeeSide.MAKE;\n }\n if (take == LibAsset.ETH_ASSET_CLASS) {\n return FeeSide.TAKE;\n }\n if (make == LibAsset.ERC20_ASSET_CLASS) {\n return FeeSide.MAKE;\n }\n if (take == LibAsset.ERC20_ASSET_CLASS) {\n return FeeSide.TAKE;\n }\n if (make == LibAsset.ERC1155_ASSET_CLASS) {\n return FeeSide.MAKE;\n }\n if (take == LibAsset.ERC1155_ASSET_CLASS) {\n return FeeSide.TAKE;\n }\n return FeeSide.NONE;\n }\n}\n" }, "@rarible/exchange-v2/contracts/ITransferManager.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\npragma abicoder v2;\n\nimport \"@rarible/lib-asset/contracts/LibAsset.sol\";\nimport \"./LibFill.sol\";\nimport \"./TransferExecutor.sol\";\nimport \"./LibOrderData.sol\";\n\nabstract contract ITransferManager is ITransferExecutor {\n bytes4 constant TO_MAKER = bytes4(keccak256(\"TO_MAKER\"));\n bytes4 constant TO_TAKER = bytes4(keccak256(\"TO_TAKER\"));\n bytes4 constant PROTOCOL = bytes4(keccak256(\"PROTOCOL\"));\n bytes4 constant ROYALTY = bytes4(keccak256(\"ROYALTY\"));\n bytes4 constant ORIGIN = bytes4(keccak256(\"ORIGIN\"));\n bytes4 constant PAYOUT = bytes4(keccak256(\"PAYOUT\"));\n\n function doTransfers(\n LibAsset.AssetType memory makeMatch,\n LibAsset.AssetType memory takeMatch,\n LibFill.FillResult memory fill,\n LibOrder.Order memory leftOrder,\n LibOrder.Order memory rightOrder,\n LibOrderDataV2.DataV2 memory leftOrderData,\n LibOrderDataV2.DataV2 memory rightOrderData\n ) internal virtual returns (uint totalMakeValue, uint totalTakeValue);\n}\n" }, "@rarible/exchange-v2/contracts/ITransferExecutor.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\npragma abicoder v2;\n\nimport \"@rarible/lib-asset/contracts/LibAsset.sol\";\n\nabstract contract ITransferExecutor {\n\n //events\n event Transfer(LibAsset.Asset asset, address from, address to, bytes4 transferDirection, bytes4 transferType);\n\n function transfer(\n LibAsset.Asset memory asset,\n address from,\n address to,\n bytes4 transferDirection,\n bytes4 transferType\n ) internal virtual;\n\n}\n" }, "@rarible/exchange-v2/contracts/ExchangeV2Core.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\npragma abicoder v2;\n\nimport \"./LibFill.sol\";\nimport \"./LibOrder.sol\";\nimport \"./OrderValidator.sol\";\nimport \"./AssetMatcher.sol\";\nimport \"./TransferExecutor.sol\";\nimport \"./ITransferManager.sol\";\nimport \"./lib/LibTransfer.sol\";\n\nabstract contract ExchangeV2Core is Initializable, OwnableUpgradeable, AssetMatcher, TransferExecutor, OrderValidator, ITransferManager {\n using SafeMathUpgradeable for uint;\n using LibTransfer for address;\n\n uint256 private constant UINT256_MAX = 2 ** 256 - 1;\n\n //state of the orders\n mapping(bytes32 => uint) public fills;\n\n //events\n event Cancel(bytes32 hash, address maker, LibAsset.AssetType makeAssetType, LibAsset.AssetType takeAssetType);\n event Match(bytes32 leftHash, bytes32 rightHash, address leftMaker, address rightMaker, uint newLeftFill, uint newRightFill, LibAsset.AssetType leftAsset, LibAsset.AssetType rightAsset);\n\n function cancel(LibOrder.Order memory order) external {\n require(_msgSender() == order.maker, \"not a maker\");\n require(order.salt != 0, \"0 salt can't be used\");\n bytes32 orderKeyHash = LibOrder.hashKey(order);\n fills[orderKeyHash] = UINT256_MAX;\n emit Cancel(orderKeyHash, order.maker, order.makeAsset.assetType, order.takeAsset.assetType);\n }\n\n function matchOrders(\n LibOrder.Order memory orderLeft,\n bytes memory signatureLeft,\n LibOrder.Order memory orderRight,\n bytes memory signatureRight\n ) external payable {\n validateFull(orderLeft, signatureLeft);\n validateFull(orderRight, signatureRight);\n if (orderLeft.taker != address(0)) {\n require(orderRight.maker == orderLeft.taker, \"leftOrder.taker verification failed\");\n }\n if (orderRight.taker != address(0)) {\n require(orderRight.taker == orderLeft.maker, \"rightOrder.taker verification failed\");\n }\n matchAndTransfer(orderLeft, orderRight);\n }\n\n function matchAndTransfer(LibOrder.Order memory orderLeft, LibOrder.Order memory orderRight) internal {\n (LibAsset.AssetType memory makeMatch, LibAsset.AssetType memory takeMatch) = matchAssets(orderLeft, orderRight);\n bytes32 leftOrderKeyHash = LibOrder.hashKey(orderLeft);\n bytes32 rightOrderKeyHash = LibOrder.hashKey(orderRight);\n\n LibOrderDataV2.DataV2 memory leftOrderData = LibOrderData.parse(orderLeft);\n LibOrderDataV2.DataV2 memory rightOrderData = LibOrderData.parse(orderRight);\n\n LibFill.FillResult memory newFill = getFillSetNew(orderLeft, orderRight, leftOrderKeyHash, rightOrderKeyHash, leftOrderData, rightOrderData);\n\n (uint totalMakeValue, uint totalTakeValue) = doTransfers(makeMatch, takeMatch, newFill, orderLeft, orderRight, leftOrderData, rightOrderData);\n if (makeMatch.assetClass == LibAsset.ETH_ASSET_CLASS) {\n require(takeMatch.assetClass != LibAsset.ETH_ASSET_CLASS);\n require(msg.value >= totalMakeValue, \"not enough eth\");\n if (msg.value > totalMakeValue) {\n address(msg.sender).transferEth(msg.value.sub(totalMakeValue));\n }\n } else if (takeMatch.assetClass == LibAsset.ETH_ASSET_CLASS) {\n require(msg.value >= totalTakeValue, \"not enough eth\");\n if (msg.value > totalTakeValue) {\n address(msg.sender).transferEth(msg.value.sub(totalTakeValue));\n }\n }\n emit Match(leftOrderKeyHash, rightOrderKeyHash, orderLeft.maker, orderRight.maker, newFill.rightValue, newFill.leftValue, makeMatch, takeMatch);\n }\n\n function getFillSetNew(\n LibOrder.Order memory orderLeft,\n LibOrder.Order memory orderRight,\n bytes32 leftOrderKeyHash,\n bytes32 rightOrderKeyHash,\n LibOrderDataV2.DataV2 memory leftOrderData,\n LibOrderDataV2.DataV2 memory rightOrderData\n ) internal returns (LibFill.FillResult memory) {\n uint leftOrderFill = getOrderFill(orderLeft, leftOrderKeyHash);\n uint rightOrderFill = getOrderFill(orderRight, rightOrderKeyHash);\n LibFill.FillResult memory newFill = LibFill.fillOrder(orderLeft, orderRight, leftOrderFill, rightOrderFill, leftOrderData.isMakeFill, rightOrderData.isMakeFill);\n\n require(newFill.rightValue > 0 && newFill.leftValue > 0, \"nothing to fill\");\n\n if (orderLeft.salt != 0) {\n if (leftOrderData.isMakeFill) {\n fills[leftOrderKeyHash] = leftOrderFill.add(newFill.leftValue);\n } else {\n fills[leftOrderKeyHash] = leftOrderFill.add(newFill.rightValue);\n }\n }\n\n if (orderRight.salt != 0) {\n if (rightOrderData.isMakeFill) {\n fills[rightOrderKeyHash] = rightOrderFill.add(newFill.rightValue);\n } else {\n fills[rightOrderKeyHash] = rightOrderFill.add(newFill.leftValue);\n }\n }\n return newFill;\n }\n\n function getOrderFill(LibOrder.Order memory order, bytes32 hash) internal view returns (uint fill) {\n if (order.salt == 0) {\n fill = 0;\n } else {\n fill = fills[hash];\n }\n }\n\n function matchAssets(LibOrder.Order memory orderLeft, LibOrder.Order memory orderRight) internal view returns (LibAsset.AssetType memory makeMatch, LibAsset.AssetType memory takeMatch) {\n makeMatch = matchAssets(orderLeft.makeAsset.assetType, orderRight.takeAsset.assetType);\n require(makeMatch.assetClass != 0, \"assets don't match\");\n takeMatch = matchAssets(orderLeft.takeAsset.assetType, orderRight.makeAsset.assetType);\n require(takeMatch.assetClass != 0, \"assets don't match\");\n }\n\n function validateFull(LibOrder.Order memory order, bytes memory signature) internal view {\n LibOrder.validate(order);\n validate(order, signature);\n }\n\n uint256[49] private __gap;\n}\n" }, "@rarible/exchange-v2/contracts/AssetMatcher.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\npragma abicoder v2;\n\nimport \"@rarible/exchange-interfaces/contracts/IAssetMatcher.sol\";\nimport \"@openzeppelin/contracts-upgradeable/proxy/Initializable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol\";\n\nabstract contract AssetMatcher is Initializable, OwnableUpgradeable {\n\n bytes constant EMPTY = \"\";\n mapping(bytes4 => address) matchers;\n\n event MatcherChange(bytes4 indexed assetType, address matcher);\n\n function setAssetMatcher(bytes4 assetType, address matcher) external onlyOwner {\n matchers[assetType] = matcher;\n emit MatcherChange(assetType, matcher);\n }\n\n function matchAssets(LibAsset.AssetType memory leftAssetType, LibAsset.AssetType memory rightAssetType) internal view returns (LibAsset.AssetType memory) {\n LibAsset.AssetType memory result = matchAssetOneSide(leftAssetType, rightAssetType);\n if (result.assetClass == 0) {\n return matchAssetOneSide(rightAssetType, leftAssetType);\n } else {\n return result;\n }\n }\n\n function matchAssetOneSide(LibAsset.AssetType memory leftAssetType, LibAsset.AssetType memory rightAssetType) private view returns (LibAsset.AssetType memory) {\n bytes4 classLeft = leftAssetType.assetClass;\n bytes4 classRight = rightAssetType.assetClass;\n if (classLeft == LibAsset.ETH_ASSET_CLASS) {\n if (classRight == LibAsset.ETH_ASSET_CLASS) {\n return leftAssetType;\n }\n return LibAsset.AssetType(0, EMPTY);\n }\n if (classLeft == LibAsset.ERC20_ASSET_CLASS) {\n if (classRight == LibAsset.ERC20_ASSET_CLASS) {\n return simpleMatch(leftAssetType, rightAssetType);\n }\n return LibAsset.AssetType(0, EMPTY);\n }\n if (classLeft == LibAsset.ERC721_ASSET_CLASS) {\n if (classRight == LibAsset.ERC721_ASSET_CLASS) {\n return simpleMatch(leftAssetType, rightAssetType);\n }\n return LibAsset.AssetType(0, EMPTY);\n }\n if (classLeft == LibAsset.ERC1155_ASSET_CLASS) {\n if (classRight == LibAsset.ERC1155_ASSET_CLASS) {\n return simpleMatch(leftAssetType, rightAssetType);\n }\n return LibAsset.AssetType(0, EMPTY);\n }\n address matcher = matchers[classLeft];\n if (matcher != address(0)) {\n return IAssetMatcher(matcher).matchAssets(leftAssetType, rightAssetType);\n }\n if (classLeft == classRight) {\n return simpleMatch(leftAssetType, rightAssetType);\n }\n revert(\"not found IAssetMatcher\");\n }\n\n function simpleMatch(LibAsset.AssetType memory leftAssetType, LibAsset.AssetType memory rightAssetType) private view returns (LibAsset.AssetType memory) {\n bytes32 leftHash = keccak256(leftAssetType.data);\n bytes32 rightHash = keccak256(rightAssetType.data);\n if (leftHash == rightHash) {\n return leftAssetType;\n }\n return LibAsset.AssetType(0, EMPTY);\n }\n\n uint256[49] private __gap;\n}\n" }, "@rarible/exchange-interfaces/contracts/ITransferProxy.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.9 <0.8.0;\npragma abicoder v2;\n\nimport \"@rarible/lib-asset/contracts/LibAsset.sol\";\n\ninterface ITransferProxy {\n function transfer(LibAsset.Asset calldata asset, address from, address to) external;\n}\n" }, "@rarible/exchange-interfaces/contracts/INftTransferProxy.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.9 <0.8.0;\npragma abicoder v2;\n\nimport \"@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/token/ERC1155/IERC1155Upgradeable.sol\";\n\ninterface INftTransferProxy {\n function erc721safeTransferFrom(IERC721Upgradeable token, address from, address to, uint256 tokenId) external;\n\n function erc1155safeTransferFrom(IERC1155Upgradeable token, address from, address to, uint256 id, uint256 value, bytes calldata data) external;\n}\n" }, "@rarible/exchange-interfaces/contracts/IERC20TransferProxy.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.9 <0.8.0;\npragma abicoder v2;\n\nimport \"@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol\";\n\ninterface IERC20TransferProxy {\n function erc20safeTransferFrom(IERC20Upgradeable token, address from, address to, uint256 value) external;\n}\n" }, "@rarible/exchange-interfaces/contracts/IAssetMatcher.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity 0.7.6;\npragma abicoder v2;\n\nimport \"@rarible/lib-asset/contracts/LibAsset.sol\";\n\ninterface IAssetMatcher {\n function matchAssets(\n LibAsset.AssetType memory leftAssetType,\n LibAsset.AssetType memory rightAssetType\n ) external view returns (LibAsset.AssetType memory);\n}\n" }, "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.0 <0.8.0;\nimport \"../proxy/Initializable.sol\";\n\n/*\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with GSN meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract ContextUpgradeable is Initializable {\n function __Context_init() internal initializer {\n __Context_init_unchained();\n }\n\n function __Context_init_unchained() internal initializer {\n }\n function _msgSender() internal view virtual returns (address payable) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes memory) {\n this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\n return msg.data;\n }\n uint256[50] private __gap;\n}\n" }, "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.2 <0.8.0;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary AddressUpgradeable {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n // solhint-disable-next-line avoid-low-level-calls, avoid-call-value\n (bool success, ) = recipient.call{ value: amount }(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain`call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCall(target, data, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n require(isContract(target), \"Address: call to non-contract\");\n\n // solhint-disable-next-line avoid-low-level-calls\n (bool success, bytes memory returndata) = target.call{ value: value }(data);\n return _verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {\n require(isContract(target), \"Address: static call to non-contract\");\n\n // solhint-disable-next-line avoid-low-level-calls\n (bool success, bytes memory returndata) = target.staticcall(data);\n return _verifyCallResult(success, returndata, errorMessage);\n }\n\n function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {\n if (success) {\n return returndata;\n } else {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n\n // solhint-disable-next-line no-inline-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n }\n}\n" }, "@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.2 <0.8.0;\n\nimport \"../../introspection/IERC165Upgradeable.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721Upgradeable is IERC165Upgradeable {\n /**\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n */\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n */\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n */\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of tokens in ``owner``'s account.\n */\n function balanceOf(address owner) external view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId) external;\n\n /**\n * @dev Transfers `tokenId` token from `from` to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(address from, address to, uint256 tokenId) external;\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) external;\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) external view returns (address operator);\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool _approved) external;\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}\n */\n function isApprovedForAll(address owner, address operator) external view returns (bool);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;\n}\n" }, "@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.0 <0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20Upgradeable {\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n}\n" }, "@openzeppelin/contracts-upgradeable/token/ERC1155/IERC1155Upgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.2 <0.8.0;\n\nimport \"../../introspection/IERC165Upgradeable.sol\";\n\n/**\n * @dev Required interface of an ERC1155 compliant contract, as defined in the\n * https://eips.ethereum.org/EIPS/eip-1155[EIP].\n *\n * _Available since v3.1._\n */\ninterface IERC1155Upgradeable is IERC165Upgradeable {\n /**\n * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.\n */\n event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);\n\n /**\n * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all\n * transfers.\n */\n event TransferBatch(address indexed operator, address indexed from, address indexed to, uint256[] ids, uint256[] values);\n\n /**\n * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to\n * `approved`.\n */\n event ApprovalForAll(address indexed account, address indexed operator, bool approved);\n\n /**\n * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.\n *\n * If an {URI} event was emitted for `id`, the standard\n * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value\n * returned by {IERC1155MetadataURI-uri}.\n */\n event URI(string value, uint256 indexed id);\n\n /**\n * @dev Returns the amount of tokens of token type `id` owned by `account`.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n */\n function balanceOf(address account, uint256 id) external view returns (uint256);\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.\n *\n * Requirements:\n *\n * - `accounts` and `ids` must have the same length.\n */\n function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids) external view returns (uint256[] memory);\n\n /**\n * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,\n *\n * Emits an {ApprovalForAll} event.\n *\n * Requirements:\n *\n * - `operator` cannot be the caller.\n */\n function setApprovalForAll(address operator, bool approved) external;\n\n /**\n * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.\n *\n * See {setApprovalForAll}.\n */\n function isApprovedForAll(address account, address operator) external view returns (bool);\n\n /**\n * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.\n *\n * Emits a {TransferSingle} event.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - If the caller is not `from`, it must be have been approved to spend ``from``'s tokens via {setApprovalForAll}.\n * - `from` must have a balance of tokens of type `id` of at least `amount`.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the\n * acceptance magic value.\n */\n function safeTransferFrom(address from, address to, uint256 id, uint256 amount, bytes calldata data) external;\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.\n *\n * Emits a {TransferBatch} event.\n *\n * Requirements:\n *\n * - `ids` and `amounts` must have the same length.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the\n * acceptance magic value.\n */\n function safeBatchTransferFrom(address from, address to, uint256[] calldata ids, uint256[] calldata amounts, bytes calldata data) external;\n}\n" }, "@openzeppelin/contracts-upgradeable/proxy/Initializable.sol": { "content": "// SPDX-License-Identifier: MIT\n\n// solhint-disable-next-line compiler-version\npragma solidity >=0.4.24 <0.8.0;\n\nimport \"../utils/AddressUpgradeable.sol\";\n\n/**\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\n * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {UpgradeableProxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n */\nabstract contract Initializable {\n\n /**\n * @dev Indicates that the contract has been initialized.\n */\n bool private _initialized;\n\n /**\n * @dev Indicates that the contract is in the process of being initialized.\n */\n bool private _initializing;\n\n /**\n * @dev Modifier to protect an initializer function from being invoked twice.\n */\n modifier initializer() {\n require(_initializing || _isConstructor() || !_initialized, \"Initializable: contract is already initialized\");\n\n bool isTopLevelCall = !_initializing;\n if (isTopLevelCall) {\n _initializing = true;\n _initialized = true;\n }\n\n _;\n\n if (isTopLevelCall) {\n _initializing = false;\n }\n }\n\n /// @dev Returns true if and only if the function is running in the constructor\n function _isConstructor() private view returns (bool) {\n return !AddressUpgradeable.isContract(address(this));\n }\n}\n" }, "@openzeppelin/contracts-upgradeable/math/SafeMathUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.0 <0.8.0;\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\n * checks.\n *\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\n * in bugs, because programmers usually assume that an overflow raises an\n * error, which is the standard behavior in high level programming languages.\n * `SafeMath` restores this intuition by reverting the transaction when an\n * operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeMathUpgradeable {\n /**\n * @dev Returns the addition of two unsigned integers, with an overflow flag.\n *\n * _Available since v3.4._\n */\n function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n uint256 c = a + b;\n if (c < a) return (false, 0);\n return (true, c);\n }\n\n /**\n * @dev Returns the substraction of two unsigned integers, with an overflow flag.\n *\n * _Available since v3.4._\n */\n function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n if (b > a) return (false, 0);\n return (true, a - b);\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, with an overflow flag.\n *\n * _Available since v3.4._\n */\n function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n if (a == 0) return (true, 0);\n uint256 c = a * b;\n if (c / a != b) return (false, 0);\n return (true, c);\n }\n\n /**\n * @dev Returns the division of two unsigned integers, with a division by zero flag.\n *\n * _Available since v3.4._\n */\n function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n if (b == 0) return (false, 0);\n return (true, a / b);\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.\n *\n * _Available since v3.4._\n */\n function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n if (b == 0) return (false, 0);\n return (true, a % b);\n }\n\n /**\n * @dev Returns the addition of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `+` operator.\n *\n * Requirements:\n *\n * - Addition cannot overflow.\n */\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a, \"SafeMath: addition overflow\");\n return c;\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting on\n * overflow (when the result is negative).\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n *\n * - Subtraction cannot overflow.\n */\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b <= a, \"SafeMath: subtraction overflow\");\n return a - b;\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `*` operator.\n *\n * Requirements:\n *\n * - Multiplication cannot overflow.\n */\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) return 0;\n uint256 c = a * b;\n require(c / a == b, \"SafeMath: multiplication overflow\");\n return c;\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers, reverting on\n * division by zero. The result is rounded towards zero.\n *\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n * uses an invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n *\n * - The divisor cannot be zero.\n */\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b > 0, \"SafeMath: division by zero\");\n return a / b;\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * reverting when dividing by zero.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n *\n * - The divisor cannot be zero.\n */\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b > 0, \"SafeMath: modulo by zero\");\n return a % b;\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n * overflow (when the result is negative).\n *\n * CAUTION: This function is deprecated because it requires allocating memory for the error\n * message unnecessarily. For custom revert reasons use {trySub}.\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n *\n * - Subtraction cannot overflow.\n */\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n return a - b;\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers, reverting with custom message on\n * division by zero. The result is rounded towards zero.\n *\n * CAUTION: This function is deprecated because it requires allocating memory for the error\n * message unnecessarily. For custom revert reasons use {tryDiv}.\n *\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n * uses an invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n *\n * - The divisor cannot be zero.\n */\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n return a / b;\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * reverting with custom message when dividing by zero.\n *\n * CAUTION: This function is deprecated because it requires allocating memory for the error\n * message unnecessarily. For custom revert reasons use {tryMod}.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n *\n * - The divisor cannot be zero.\n */\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n return a % b;\n }\n}\n" }, "@openzeppelin/contracts-upgradeable/math/MathUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.0 <0.8.0;\n\n/**\n * @dev Standard math utilities missing in the Solidity language.\n */\nlibrary MathUpgradeable {\n /**\n * @dev Returns the largest of two numbers.\n */\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n return a >= b ? a : b;\n }\n\n /**\n * @dev Returns the smallest of two numbers.\n */\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n return a < b ? a : b;\n }\n\n /**\n * @dev Returns the average of two numbers. The result is rounded towards\n * zero.\n */\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n // (a + b) / 2 can overflow, so we distribute\n return (a / 2) + (b / 2) + ((a % 2 + b % 2) / 2);\n }\n}\n" }, "@openzeppelin/contracts-upgradeable/introspection/IERC165Upgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.0 <0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165Upgradeable {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n" }, "@openzeppelin/contracts-upgradeable/drafts/EIP712Upgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.0 <0.8.0;\nimport \"../proxy/Initializable.sol\";\n\n/**\n * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.\n *\n * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,\n * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding\n * they need in their contracts using a combination of `abi.encode` and `keccak256`.\n *\n * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding\n * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA\n * ({_hashTypedDataV4}).\n *\n * The implementation of the domain separator was designed to be as efficient as possible while still properly updating\n * the chain id to protect against replay attacks on an eventual fork of the chain.\n *\n * NOTE: This contract implements the version of the encoding known as \"v4\", as implemented by the JSON RPC method\n * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].\n *\n * _Available since v3.4._\n */\nabstract contract EIP712Upgradeable is Initializable {\n /* solhint-disable var-name-mixedcase */\n bytes32 private _HASHED_NAME;\n bytes32 private _HASHED_VERSION;\n bytes32 private constant _TYPE_HASH = keccak256(\"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\");\n /* solhint-enable var-name-mixedcase */\n\n /**\n * @dev Initializes the domain separator and parameter caches.\n *\n * The meaning of `name` and `version` is specified in\n * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:\n *\n * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.\n * - `version`: the current major version of the signing domain.\n *\n * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart\n * contract upgrade].\n */\n function __EIP712_init(string memory name, string memory version) internal initializer {\n __EIP712_init_unchained(name, version);\n }\n\n function __EIP712_init_unchained(string memory name, string memory version) internal initializer {\n bytes32 hashedName = keccak256(bytes(name));\n bytes32 hashedVersion = keccak256(bytes(version));\n _HASHED_NAME = hashedName;\n _HASHED_VERSION = hashedVersion;\n }\n\n /**\n * @dev Returns the domain separator for the current chain.\n */\n function _domainSeparatorV4() internal view returns (bytes32) {\n return _buildDomainSeparator(_TYPE_HASH, _EIP712NameHash(), _EIP712VersionHash());\n }\n\n function _buildDomainSeparator(bytes32 typeHash, bytes32 name, bytes32 version) private view returns (bytes32) {\n return keccak256(\n abi.encode(\n typeHash,\n name,\n version,\n _getChainId(),\n address(this)\n )\n );\n }\n\n /**\n * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this\n * function returns the hash of the fully encoded EIP712 message for this domain.\n *\n * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:\n *\n * ```solidity\n * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(\n * keccak256(\"Mail(address to,string contents)\"),\n * mailTo,\n * keccak256(bytes(mailContents))\n * )));\n * address signer = ECDSA.recover(digest, signature);\n * ```\n */\n function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {\n return keccak256(abi.encodePacked(\"\\x19\\x01\", _domainSeparatorV4(), structHash));\n }\n\n function _getChainId() private view returns (uint256 chainId) {\n this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\n // solhint-disable-next-line no-inline-assembly\n assembly {\n chainId := chainid()\n }\n }\n\n /**\n * @dev The hash of the name parameter for the EIP712 domain.\n *\n * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs\n * are a concern.\n */\n function _EIP712NameHash() internal virtual view returns (bytes32) {\n return _HASHED_NAME;\n }\n\n /**\n * @dev The hash of the version parameter for the EIP712 domain.\n *\n * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs\n * are a concern.\n */\n function _EIP712VersionHash() internal virtual view returns (bytes32) {\n return _HASHED_VERSION;\n }\n uint256[50] private __gap;\n}\n" }, "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.0 <0.8.0;\n\nimport \"../utils/ContextUpgradeable.sol\";\nimport \"../proxy/Initializable.sol\";\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {\n address private _owner;\n\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n /**\n * @dev Initializes the contract setting the deployer as the initial owner.\n */\n function __Ownable_init() internal initializer {\n __Context_init_unchained();\n __Ownable_init_unchained();\n }\n\n function __Ownable_init_unchained() internal initializer {\n address msgSender = _msgSender();\n _owner = msgSender;\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n /**\n * @dev Returns the address of the current owner.\n */\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n /**\n * @dev Throws if called by any account other than the owner.\n */\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n _;\n }\n\n /**\n * @dev Leaves the contract without owner. It will not be possible to call\n * `onlyOwner` functions anymore. Can only be called by the current owner.\n *\n * NOTE: Renouncing ownership will leave the contract without an owner,\n * thereby removing any functionality that is only available to the owner.\n */\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n _owner = address(0);\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Can only be called by the current owner.\n */\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n emit OwnershipTransferred(_owner, newOwner);\n _owner = newOwner;\n }\n uint256[49] private __gap;\n}\n" } }, "settings": { "remappings": [], "optimizer": { "enabled": true, "runs": 200 }, "evmVersion": "istanbul", "libraries": {}, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } } } }