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Contract Name:
BNFTRegistry
Compiler Version
v0.8.4+commit.c7e474f2
Optimization Enabled:
Yes with 200 runs
Other Settings:
istanbul EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.8.4; import {IBNFTRegistry} from "../interfaces/IBNFTRegistry.sol"; import {IBNFT} from "../interfaces/IBNFT.sol"; import {BNFTUpgradeableProxy} from "../libraries/BNFTUpgradeableProxy.sol"; import {AddressUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol"; import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"; import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol"; import {IERC721MetadataUpgradeable} from "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/IERC721MetadataUpgradeable.sol"; contract BNFTRegistry is IBNFTRegistry, Initializable, OwnableUpgradeable { mapping(address => address) public bNftProxys; mapping(address => address) public bNftImpls; address[] public bNftAssetLists; string public namePrefix; string public symbolPrefix; address public bNftGenericImpl; mapping(address => string) public customSymbols; uint256 private constant _NOT_ENTERED = 0; uint256 private constant _ENTERED = 1; uint256 private _status; address private _claimAdmin; address private _delegateCashContract; address private _delegateCashContractV2; /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } /** * @dev Throws if called by any account other than the claim admin. */ modifier onlyClaimAdmin() { require(claimAdmin() == _msgSender(), "BNFTR: caller is not the claim admin"); _; } function getBNFTAddresses(address nftAsset) external view override returns (address bNftProxy, address bNftImpl) { bNftProxy = bNftProxys[nftAsset]; bNftImpl = bNftImpls[nftAsset]; } function getBNFTAddressesByIndex(uint16 index) external view override returns (address bNftProxy, address bNftImpl) { require(index < bNftAssetLists.length, "BNFTR: invalid index"); bNftProxy = bNftProxys[bNftAssetLists[index]]; bNftImpl = bNftImpls[bNftAssetLists[index]]; } function getBNFTAssetList() external view override returns (address[] memory) { return bNftAssetLists; } function allBNFTAssetLength() external view override returns (uint256) { return bNftAssetLists.length; } function getDelegateCashContract() public view override returns (address) { return _delegateCashContract; } function getDelegateCashContractV2() public view override returns (address) { return _delegateCashContractV2; } function initialize( address genericImpl, string memory namePrefix_, string memory symbolPrefix_ ) external override initializer { require(genericImpl != address(0), "BNFTR: impl is zero address"); __Ownable_init(); bNftGenericImpl = genericImpl; namePrefix = namePrefix_; symbolPrefix = symbolPrefix_; _setClaimAdmin(_msgSender()); emit Initialized(genericImpl, namePrefix, symbolPrefix); } /** * @dev See {IBNFTRegistry-createBNFT}. */ function createBNFT(address nftAsset) external override nonReentrant returns (address bNftProxy) { _requireAddressIsERC721(nftAsset); require(bNftProxys[nftAsset] == address(0), "BNFTR: asset exist"); require(bNftGenericImpl != address(0), "BNFTR: impl is zero address"); bNftProxy = _createProxyAndInitWithImpl(nftAsset, bNftGenericImpl); emit BNFTCreated(nftAsset, bNftImpls[nftAsset], bNftProxy, bNftAssetLists.length); } /** * @dev See {IBNFTRegistry-setBNFTGenericImpl}. */ function setBNFTGenericImpl(address genericImpl) external override nonReentrant onlyOwner { require(genericImpl != address(0), "BNFTR: impl is zero address"); bNftGenericImpl = genericImpl; emit GenericImplementationUpdated(genericImpl); } /** * @dev See {IBNFTRegistry-createBNFTWithImpl}. */ function createBNFTWithImpl(address nftAsset, address bNftImpl) external override nonReentrant onlyOwner returns (address bNftProxy) { _requireAddressIsERC721(nftAsset); require(bNftImpl != address(0), "BNFTR: implement is zero address"); require(bNftProxys[nftAsset] == address(0), "BNFTR: asset exist"); bNftProxy = _createProxyAndInitWithImpl(nftAsset, bNftImpl); emit BNFTCreated(nftAsset, bNftImpls[nftAsset], bNftProxy, bNftAssetLists.length); } /** * @dev See {IBNFTRegistry-upgradeBNFTWithImpl}. */ function upgradeBNFTWithImpl( address nftAsset, address bNftImpl, bytes memory encodedCallData ) external override nonReentrant onlyOwner { _upgradeBNFTWithImpl(nftAsset, bNftImpl, encodedCallData); } function _upgradeBNFTWithImpl( address nftAsset, address bNftImpl, bytes memory encodedCallData ) internal { address bNftProxy = bNftProxys[nftAsset]; require(bNftProxy != address(0), "BNFTR: asset nonexist"); BNFTUpgradeableProxy proxy = BNFTUpgradeableProxy(payable(bNftProxy)); if (encodedCallData.length > 0) { proxy.upgradeToAndCall(bNftImpl, encodedCallData); } else { proxy.upgradeTo(bNftImpl); } bNftImpls[nftAsset] = bNftImpl; emit BNFTUpgraded(nftAsset, bNftImpl, bNftProxy, bNftAssetLists.length); } function batchUpgradeBNFT(address[] calldata nftAssets) external override nonReentrant onlyOwner { require(nftAssets.length > 0, "BNFTR: empty assets"); for (uint256 i = 0; i < nftAssets.length; i++) { _upgradeBNFTWithImpl(nftAssets[i], bNftGenericImpl, new bytes(0)); } } function batchUpgradeAllBNFT() external override nonReentrant onlyOwner { for (uint256 i = 0; i < bNftAssetLists.length; i++) { _upgradeBNFTWithImpl(bNftAssetLists[i], bNftGenericImpl, new bytes(0)); } } /** * @dev See {IBNFTRegistry-addCustomeSymbols}. */ function addCustomeSymbols(address[] memory nftAssets_, string[] memory symbols_) external override nonReentrant onlyOwner { require(nftAssets_.length == symbols_.length, "BNFTR: inconsistent parameters"); for (uint256 i = 0; i < nftAssets_.length; i++) { customSymbols[nftAssets_[i]] = symbols_[i]; } emit CustomeSymbolsAdded(nftAssets_, symbols_); } /** * @dev Returns the address of the current claim admin. */ function claimAdmin() public view virtual returns (address) { return _claimAdmin; } /** * @dev Set claim admin of the contract to a new account (`newAdmin`). * Can only be called by the current owner. */ function setClaimAdmin(address newAdmin) public virtual onlyOwner { require(newAdmin != address(0), "BNFTR: new admin is the zero address"); _setClaimAdmin(newAdmin); } function _setClaimAdmin(address newAdmin) internal virtual { address oldAdmin = _claimAdmin; _claimAdmin = newAdmin; emit ClaimAdminUpdated(oldAdmin, newAdmin); } function setDelegateCashContract(address newDelegateCash) public virtual onlyOwner { require(newDelegateCash != address(0), "BNFTR: new contract is the zero address"); address oldDelegateCash = _delegateCashContract; _delegateCashContract = newDelegateCash; emit DelegateCashUpdated(oldDelegateCash, newDelegateCash); } function setDelegateCashContractV2(address newDelegateCash) public virtual onlyOwner { require(newDelegateCash != address(0), "BNFTR: new contract is the zero address"); address oldDelegateCash = _delegateCashContractV2; _delegateCashContractV2 = newDelegateCash; emit DelegateCashV2Updated(oldDelegateCash, newDelegateCash); } function _createProxyAndInitWithImpl(address nftAsset, address bNftImpl) internal returns (address bNftProxy) { bytes memory initParams = _buildInitParams(nftAsset); BNFTUpgradeableProxy proxy = new BNFTUpgradeableProxy(bNftImpl, address(this), initParams); bNftProxy = address(proxy); bNftImpls[nftAsset] = bNftImpl; bNftProxys[nftAsset] = bNftProxy; bNftAssetLists.push(nftAsset); } function _buildInitParams(address nftAsset) internal view returns (bytes memory initParams) { string memory nftSymbol = customSymbols[nftAsset]; if (bytes(nftSymbol).length == 0) { nftSymbol = IERC721MetadataUpgradeable(nftAsset).symbol(); } string memory bNftName = string(abi.encodePacked(namePrefix, " ", nftSymbol)); string memory bNftSymbol = string(abi.encodePacked(symbolPrefix, nftSymbol)); initParams = abi.encodeWithSelector( IBNFT.initialize.selector, nftAsset, bNftName, bNftSymbol, owner(), claimAdmin(), address(this) ); } function _requireAddressIsERC721(address nftAsset) internal view { require(nftAsset != address(0), "BNFTR: asset is zero address"); require(AddressUpgradeable.isContract(nftAsset), "BNFTR: asset is not contract"); } }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.8.4; interface IBNFTRegistry { event Initialized(address genericImpl, string namePrefix, string symbolPrefix); event GenericImplementationUpdated(address genericImpl); event BNFTCreated(address indexed nftAsset, address bNftImpl, address bNftProxy, uint256 totals); event BNFTUpgraded(address indexed nftAsset, address bNftImpl, address bNftProxy, uint256 totals); event CustomeSymbolsAdded(address[] nftAssets, string[] symbols); event ClaimAdminUpdated(address oldAdmin, address newAdmin); event DelegateCashUpdated(address oldDelegateCash, address newDelegateCash); event DelegateCashV2Updated(address oldDelegateCash, address newDelegateCash); function getBNFTAddresses(address nftAsset) external view returns (address bNftProxy, address bNftImpl); function getBNFTAddressesByIndex(uint16 index) external view returns (address bNftProxy, address bNftImpl); function getBNFTAssetList() external view returns (address[] memory); function allBNFTAssetLength() external view returns (uint256); function getDelegateCashContract() external view returns (address); function getDelegateCashContractV2() external view returns (address); function initialize( address genericImpl, string memory namePrefix_, string memory symbolPrefix_ ) external; function setBNFTGenericImpl(address genericImpl) external; /** * @dev Create bNFT proxy and implement, then initialize it * @param nftAsset The address of the underlying asset of the BNFT **/ function createBNFT(address nftAsset) external returns (address bNftProxy); /** * @dev Create bNFT proxy with already deployed implement, then initialize it * @param nftAsset The address of the underlying asset of the BNFT * @param bNftImpl The address of the deployed implement of the BNFT **/ function createBNFTWithImpl(address nftAsset, address bNftImpl) external returns (address bNftProxy); /** * @dev Update bNFT proxy to an new deployed implement, then initialize it * @param nftAsset The address of the underlying asset of the BNFT * @param bNftImpl The address of the deployed implement of the BNFT * @param encodedCallData The encoded function call. **/ function upgradeBNFTWithImpl( address nftAsset, address bNftImpl, bytes memory encodedCallData ) external; function batchUpgradeBNFT(address[] calldata nftAssets) external; function batchUpgradeAllBNFT() external; /** * @dev Adding custom symbol for some special NFTs like CryptoPunks * @param nftAssets_ The addresses of the NFTs * @param symbols_ The custom symbols of the NFTs **/ function addCustomeSymbols(address[] memory nftAssets_, string[] memory symbols_) external; }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.8.4; interface IBNFT { /** * @dev Emitted when an bNFT is initialized * @param underlyingAsset_ The address of the underlying asset **/ event Initialized(address indexed underlyingAsset_); /** * @dev Emitted when the ownership is transferred * @param oldOwner The address of the old owner * @param newOwner The address of the new owner **/ event OwnershipTransferred(address oldOwner, address newOwner); /** * @dev Emitted when the claim admin is updated * @param oldAdmin The address of the old admin * @param newAdmin The address of the new admin **/ event ClaimAdminUpdated(address oldAdmin, address newAdmin); /** * @dev Emitted on mint * @param user The address initiating the burn * @param nftAsset address of the underlying asset of NFT * @param nftTokenId token id of the underlying asset of NFT * @param owner The owner address receive the bNFT token **/ event Mint(address indexed user, address indexed nftAsset, uint256 nftTokenId, address indexed owner); /** * @dev Emitted on burn * @param user The address initiating the burn * @param nftAsset address of the underlying asset of NFT * @param nftTokenId token id of the underlying asset of NFT * @param owner The owner address of the burned bNFT token **/ event Burn(address indexed user, address indexed nftAsset, uint256 nftTokenId, address indexed owner); /** * @dev Emitted on flashLoan * @param target The address of the flash loan receiver contract * @param initiator The address initiating the flash loan * @param nftAsset address of the underlying asset of NFT * @param tokenId The token id of the asset being flash borrowed **/ event FlashLoan(address indexed target, address indexed initiator, address indexed nftAsset, uint256 tokenId); event ClaimERC20Airdrop(address indexed token, address indexed to, uint256 amount); event ClaimERC721Airdrop(address indexed token, address indexed to, uint256[] ids); event ClaimERC1155Airdrop(address indexed token, address indexed to, uint256[] ids, uint256[] amounts, bytes data); event ExecuteAirdrop(address indexed airdropContract); event FlashLoanApproval(address indexed minter, address indexed operator, bool approved); event FlashLoanLocking(uint256 tokenId, address indexed minter, address indexed operator, bool approved); /** * @dev Initializes the bNFT * @param underlyingAsset_ The address of the underlying asset of this bNFT (E.g. PUNK for bPUNK) */ function initialize( address underlyingAsset_, string calldata bNftName, string calldata bNftSymbol, address owner_, address claimAdmin_, address bnftRegistry_ ) external; /** * @dev Mints bNFT token to the user address * * Requirements: * - The caller can be contract address and EOA. * - `nftTokenId` must not exist. * * @param to The owner address receive the bNFT token * @param tokenId token id of the underlying asset of NFT **/ function mint(address to, uint256 tokenId) external; /** * @dev Burns user bNFT token * * Requirements: * - The caller can be contract address and EOA. * - `tokenId` must exist. * * @param tokenId token id of the underlying asset of NFT **/ function burn(uint256 tokenId) external; /** * @dev Allows smartcontracts to access the tokens within one transaction, as long as the tokens taken is returned. * * Requirements: * - `nftTokenIds` must exist. * * @param receiverAddress The address of the contract receiving the tokens, implementing the IFlashLoanReceiver interface * @param nftTokenIds token ids of the underlying asset * @param params Variadic packed params to pass to the receiver as extra information */ function flashLoan( address receiverAddress, uint256[] calldata nftTokenIds, bytes calldata params ) external; /** * @dev Approve or remove the flash loan `operator` as an operator for the minter. * Operators can call {flashLoan} for any token minted by the minter. * */ function setFlashLoanApproval(address operator, bool approved) external; /** * @dev Returns if the `operator` is allowed to call flash loan of the assets of `minter`. */ function isFlashLoanApproved(address minter, address operator) external view returns (bool); /** * @dev Lock or unlock the flash loan `operator` as an operator for the minter. * Operators can call {flashLoan} for any token minted by the minter. * */ function setFlashLoanLocking( uint256 tokenId, address operator, bool locked ) external; /** * @dev Returns if the `operator` is allowed to call flash loan of the assets of `minter`. */ function isFlashLoanLocked( uint256 tokenId, address minter, address operator ) external view returns (bool); function getFlashLoanLocked(uint256 tokenId, address minter) external view returns (address[] memory); // V1 Delegate Cash function getDelegateCashForToken(uint256[] calldata tokenIds) external view returns (address[][] memory); function setDelegateCashForToken(uint256[] calldata tokenIds, bool value) external; function setDelegateCashForToken( address delegate, uint256[] calldata tokenIds, bool value ) external; // V2 Delegate Cash function getDelegateCashForTokenV2(uint256[] calldata tokenIds) external view returns (address[][] memory); function setDelegateCashForTokenV2(uint256[] calldata tokenIds, bool value) external; function setDelegateCashForTokenV2( address delegate, uint256[] calldata tokenIds, bool value ) external; // Airdrop function claimERC20Airdrop( address token, address to, uint256 amount ) external; function claimERC721Airdrop( address token, address to, uint256[] calldata ids ) external; function claimERC1155Airdrop( address token, address to, uint256[] calldata ids, uint256[] calldata amounts, bytes calldata data ) external; function executeAirdrop(address airdropContract, bytes calldata airdropParams) external; /** * @dev Returns the owner of the `nftTokenId` token. * * Requirements: * - `tokenId` must exist. * * @param tokenId token id of the underlying asset of NFT */ function minterOf(uint256 tokenId) external view returns (address); /** * @dev Returns the address of the underlying asset. */ function underlyingAsset() external view returns (address); /** * @dev Returns the contract-level metadata. */ function contractURI() external view returns (string memory); }
// SPDX-License-Identifier: agpl-3.0 pragma solidity 0.8.4; import {TransparentUpgradeableProxy} from "@openzeppelin/contracts/proxy/transparent/TransparentUpgradeableProxy.sol"; contract BNFTUpgradeableProxy is TransparentUpgradeableProxy { constructor( address _logic, address admin_, bytes memory _data ) payable TransparentUpgradeableProxy(_logic, admin_, _data) {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @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 * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://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"); (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"); (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"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // 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 assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (proxy/utils/Initializable.sol) pragma solidity ^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 proxied contracts do not make use of 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 {ERC1967Proxy-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. * * [CAUTION] * ==== * Avoid leaving a contract uninitialized. * * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation * contract, which may impact the proxy. To initialize the implementation contract, you can either invoke the * initializer manually, or you can include a constructor to automatically mark it as initialized when it is deployed: * * [.hljs-theme-light.nopadding] * ``` * /// @custom:oz-upgrades-unsafe-allow constructor * constructor() initializer {} * ``` * ==== */ 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() { // If the contract is initializing we ignore whether _initialized is set in order to support multiple // inheritance patterns, but we only do this in the context of a constructor, because in other contexts the // contract may have been reentered. require(_initializing ? _isConstructor() : !_initialized, "Initializable: contract is already initialized"); bool isTopLevelCall = !_initializing; if (isTopLevelCall) { _initializing = true; _initialized = true; } _; if (isTopLevelCall) { _initializing = false; } } /** * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the * {initializer} modifier, directly or indirectly. */ modifier onlyInitializing() { require(_initializing, "Initializable: contract is not initializing"); _; } function _isConstructor() private view returns (bool) { return !AddressUpgradeable.isContract(address(this)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/ContextUpgradeable.sol"; import "../proxy/utils/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 onlyInitializing { __Ownable_init_unchained(); } function __Ownable_init_unchained() internal onlyInitializing { _transferOwnership(_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 { _transferOwnership(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"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[49] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; import "../IERC721Upgradeable.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721MetadataUpgradeable is IERC721Upgradeable { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (proxy/transparent/TransparentUpgradeableProxy.sol) pragma solidity ^0.8.0; import "../ERC1967/ERC1967Proxy.sol"; /** * @dev This contract implements a proxy that is upgradeable by an admin. * * To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector * clashing], which can potentially be used in an attack, this contract uses the * https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two * things that go hand in hand: * * 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if * that call matches one of the admin functions exposed by the proxy itself. * 2. If the admin calls the proxy, it can access the admin functions, but its calls will never be forwarded to the * implementation. If the admin tries to call a function on the implementation it will fail with an error that says * "admin cannot fallback to proxy target". * * These properties mean that the admin account can only be used for admin actions like upgrading the proxy or changing * the admin, so it's best if it's a dedicated account that is not used for anything else. This will avoid headaches due * to sudden errors when trying to call a function from the proxy implementation. * * Our recommendation is for the dedicated account to be an instance of the {ProxyAdmin} contract. If set up this way, * you should think of the `ProxyAdmin` instance as the real administrative interface of your proxy. */ contract TransparentUpgradeableProxy is ERC1967Proxy { /** * @dev Initializes an upgradeable proxy managed by `_admin`, backed by the implementation at `_logic`, and * optionally initialized with `_data` as explained in {ERC1967Proxy-constructor}. */ constructor( address _logic, address admin_, bytes memory _data ) payable ERC1967Proxy(_logic, _data) { assert(_ADMIN_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1)); _changeAdmin(admin_); } /** * @dev Modifier used internally that will delegate the call to the implementation unless the sender is the admin. */ modifier ifAdmin() { if (msg.sender == _getAdmin()) { _; } else { _fallback(); } } /** * @dev Returns the current admin. * * NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyAdmin}. * * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call. * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103` */ function admin() external ifAdmin returns (address admin_) { admin_ = _getAdmin(); } /** * @dev Returns the current implementation. * * NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyImplementation}. * * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call. * `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc` */ function implementation() external ifAdmin returns (address implementation_) { implementation_ = _implementation(); } /** * @dev Changes the admin of the proxy. * * Emits an {AdminChanged} event. * * NOTE: Only the admin can call this function. See {ProxyAdmin-changeProxyAdmin}. */ function changeAdmin(address newAdmin) external virtual ifAdmin { _changeAdmin(newAdmin); } /** * @dev Upgrade the implementation of the proxy. * * NOTE: Only the admin can call this function. See {ProxyAdmin-upgrade}. */ function upgradeTo(address newImplementation) external ifAdmin { _upgradeToAndCall(newImplementation, bytes(""), false); } /** * @dev Upgrade the implementation of the proxy, and then call a function from the new implementation as specified * by `data`, which should be an encoded function call. This is useful to initialize new storage variables in the * proxied contract. * * NOTE: Only the admin can call this function. See {ProxyAdmin-upgradeAndCall}. */ function upgradeToAndCall(address newImplementation, bytes calldata data) external payable ifAdmin { _upgradeToAndCall(newImplementation, data, true); } /** * @dev Returns the current admin. */ function _admin() internal view virtual returns (address) { return _getAdmin(); } /** * @dev Makes sure the admin cannot access the fallback function. See {Proxy-_beforeFallback}. */ function _beforeFallback() internal virtual override { require(msg.sender != _getAdmin(), "TransparentUpgradeableProxy: admin cannot fallback to proxy target"); super._beforeFallback(); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (proxy/ERC1967/ERC1967Proxy.sol) pragma solidity ^0.8.0; import "../Proxy.sol"; import "./ERC1967Upgrade.sol"; /** * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an * implementation address that can be changed. This address is stored in storage in the location specified by * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the * implementation behind the proxy. */ contract ERC1967Proxy is Proxy, ERC1967Upgrade { /** * @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`. * * If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded * function call, and allows initializating the storage of the proxy like a Solidity constructor. */ constructor(address _logic, bytes memory _data) payable { assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1)); _upgradeToAndCall(_logic, _data, false); } /** * @dev Returns the current implementation address. */ function _implementation() internal view virtual override returns (address impl) { return ERC1967Upgrade._getImplementation(); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (proxy/Proxy.sol) pragma solidity ^0.8.0; /** * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to * be specified by overriding the virtual {_implementation} function. * * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a * different contract through the {_delegate} function. * * The success and return data of the delegated call will be returned back to the caller of the proxy. */ abstract contract Proxy { /** * @dev Delegates the current call to `implementation`. * * This function does not return to its internal call site, it will return directly to the external caller. */ function _delegate(address implementation) internal virtual { assembly { // Copy msg.data. We take full control of memory in this inline assembly // block because it will not return to Solidity code. We overwrite the // Solidity scratch pad at memory position 0. calldatacopy(0, 0, calldatasize()) // Call the implementation. // out and outsize are 0 because we don't know the size yet. let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0) // Copy the returned data. returndatacopy(0, 0, returndatasize()) switch result // delegatecall returns 0 on error. case 0 { revert(0, returndatasize()) } default { return(0, returndatasize()) } } } /** * @dev This is a virtual function that should be overriden so it returns the address to which the fallback function * and {_fallback} should delegate. */ function _implementation() internal view virtual returns (address); /** * @dev Delegates the current call to the address returned by `_implementation()`. * * This function does not return to its internall call site, it will return directly to the external caller. */ function _fallback() internal virtual { _beforeFallback(); _delegate(_implementation()); } /** * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other * function in the contract matches the call data. */ fallback() external payable virtual { _fallback(); } /** * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data * is empty. */ receive() external payable virtual { _fallback(); } /** * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback` * call, or as part of the Solidity `fallback` or `receive` functions. * * If overriden should call `super._beforeFallback()`. */ function _beforeFallback() internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (proxy/ERC1967/ERC1967Upgrade.sol) pragma solidity ^0.8.2; import "../beacon/IBeacon.sol"; import "../../interfaces/draft-IERC1822.sol"; import "../../utils/Address.sol"; import "../../utils/StorageSlot.sol"; /** * @dev This abstract contract provides getters and event emitting update functions for * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots. * * _Available since v4.1._ * * @custom:oz-upgrades-unsafe-allow delegatecall */ abstract contract ERC1967Upgrade { // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1 bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143; /** * @dev Storage slot with the address of the current implementation. * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is * validated in the constructor. */ bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; /** * @dev Emitted when the implementation is upgraded. */ event Upgraded(address indexed implementation); /** * @dev Returns the current implementation address. */ function _getImplementation() internal view returns (address) { return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; } /** * @dev Stores a new address in the EIP1967 implementation slot. */ function _setImplementation(address newImplementation) private { require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract"); StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; } /** * @dev Perform implementation upgrade * * Emits an {Upgraded} event. */ function _upgradeTo(address newImplementation) internal { _setImplementation(newImplementation); emit Upgraded(newImplementation); } /** * @dev Perform implementation upgrade with additional setup call. * * Emits an {Upgraded} event. */ function _upgradeToAndCall( address newImplementation, bytes memory data, bool forceCall ) internal { _upgradeTo(newImplementation); if (data.length > 0 || forceCall) { Address.functionDelegateCall(newImplementation, data); } } /** * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call. * * Emits an {Upgraded} event. */ function _upgradeToAndCallUUPS( address newImplementation, bytes memory data, bool forceCall ) internal { // Upgrades from old implementations will perform a rollback test. This test requires the new // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing // this special case will break upgrade paths from old UUPS implementation to new ones. if (StorageSlot.getBooleanSlot(_ROLLBACK_SLOT).value) { _setImplementation(newImplementation); } else { try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) { require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID"); } catch { revert("ERC1967Upgrade: new implementation is not UUPS"); } _upgradeToAndCall(newImplementation, data, forceCall); } } /** * @dev Storage slot with the admin of the contract. * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is * validated in the constructor. */ bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103; /** * @dev Emitted when the admin account has changed. */ event AdminChanged(address previousAdmin, address newAdmin); /** * @dev Returns the current admin. */ function _getAdmin() internal view returns (address) { return StorageSlot.getAddressSlot(_ADMIN_SLOT).value; } /** * @dev Stores a new address in the EIP1967 admin slot. */ function _setAdmin(address newAdmin) private { require(newAdmin != address(0), "ERC1967: new admin is the zero address"); StorageSlot.getAddressSlot(_ADMIN_SLOT).value = newAdmin; } /** * @dev Changes the admin of the proxy. * * Emits an {AdminChanged} event. */ function _changeAdmin(address newAdmin) internal { emit AdminChanged(_getAdmin(), newAdmin); _setAdmin(newAdmin); } /** * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy. * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor. */ bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50; /** * @dev Emitted when the beacon is upgraded. */ event BeaconUpgraded(address indexed beacon); /** * @dev Returns the current beacon. */ function _getBeacon() internal view returns (address) { return StorageSlot.getAddressSlot(_BEACON_SLOT).value; } /** * @dev Stores a new beacon in the EIP1967 beacon slot. */ function _setBeacon(address newBeacon) private { require(Address.isContract(newBeacon), "ERC1967: new beacon is not a contract"); require( Address.isContract(IBeacon(newBeacon).implementation()), "ERC1967: beacon implementation is not a contract" ); StorageSlot.getAddressSlot(_BEACON_SLOT).value = newBeacon; } /** * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that). * * Emits a {BeaconUpgraded} event. */ function _upgradeBeaconToAndCall( address newBeacon, bytes memory data, bool forceCall ) internal { _setBeacon(newBeacon); emit BeaconUpgraded(newBeacon); if (data.length > 0 || forceCall) { Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol) pragma solidity ^0.8.0; /** * @dev This is the interface that {BeaconProxy} expects of its beacon. */ interface IBeacon { /** * @dev Must return an address that can be used as a delegate call target. * * {BeaconProxy} will check that this address is a contract. */ function implementation() external view returns (address); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol) pragma solidity ^0.8.0; /** * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified * proxy whose upgrades are fully controlled by the current implementation. */ interface IERC1822Proxiable { /** * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation * address. * * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this * function revert if invoked through a proxy. */ function proxiableUUID() external view returns (bytes32); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://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"); (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"); (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"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // 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 assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/StorageSlot.sol) pragma solidity ^0.8.0; /** * @dev Library for reading and writing primitive types to specific storage slots. * * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts. * This library helps with reading and writing to such slots without the need for inline assembly. * * The functions in this library return Slot structs that contain a `value` member that can be used to read or write. * * Example usage to set ERC1967 implementation slot: * ``` * contract ERC1967 { * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; * * function _getImplementation() internal view returns (address) { * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; * } * * function _setImplementation(address newImplementation) internal { * require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract"); * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; * } * } * ``` * * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._ */ library StorageSlot { struct AddressSlot { address value; } struct BooleanSlot { bool value; } struct Bytes32Slot { bytes32 value; } struct Uint256Slot { uint256 value; } /** * @dev Returns an `AddressSlot` with member `value` located at `slot`. */ function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) { assembly { r.slot := slot } } /** * @dev Returns an `BooleanSlot` with member `value` located at `slot`. */ function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) { assembly { r.slot := slot } } /** * @dev Returns an `Bytes32Slot` with member `value` located at `slot`. */ function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) { assembly { r.slot := slot } } /** * @dev Returns an `Uint256Slot` with member `value` located at `slot`. */ function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) { assembly { r.slot := slot } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; import "../proxy/utils/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 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 onlyInitializing { } function __Context_init_unchained() internal onlyInitializing { } function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/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; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^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); }
{ "optimizer": { "enabled": true, "runs": 200 }, "evmVersion": "istanbul", "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
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Contract ABI
API[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"nftAsset","type":"address"},{"indexed":false,"internalType":"address","name":"bNftImpl","type":"address"},{"indexed":false,"internalType":"address","name":"bNftProxy","type":"address"},{"indexed":false,"internalType":"uint256","name":"totals","type":"uint256"}],"name":"BNFTCreated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"nftAsset","type":"address"},{"indexed":false,"internalType":"address","name":"bNftImpl","type":"address"},{"indexed":false,"internalType":"address","name":"bNftProxy","type":"address"},{"indexed":false,"internalType":"uint256","name":"totals","type":"uint256"}],"name":"BNFTUpgraded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"ClaimAdminUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address[]","name":"nftAssets","type":"address[]"},{"indexed":false,"internalType":"string[]","name":"symbols","type":"string[]"}],"name":"CustomeSymbolsAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldDelegateCash","type":"address"},{"indexed":false,"internalType":"address","name":"newDelegateCash","type":"address"}],"name":"DelegateCashUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldDelegateCash","type":"address"},{"indexed":false,"internalType":"address","name":"newDelegateCash","type":"address"}],"name":"DelegateCashV2Updated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"genericImpl","type":"address"}],"name":"GenericImplementationUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"genericImpl","type":"address"},{"indexed":false,"internalType":"string","name":"namePrefix","type":"string"},{"indexed":false,"internalType":"string","name":"symbolPrefix","type":"string"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[{"internalType":"address[]","name":"nftAssets_","type":"address[]"},{"internalType":"string[]","name":"symbols_","type":"string[]"}],"name":"addCustomeSymbols","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"allBNFTAssetLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"bNftAssetLists","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"bNftGenericImpl","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"bNftImpls","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"bNftProxys","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"batchUpgradeAllBNFT","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"nftAssets","type":"address[]"}],"name":"batchUpgradeBNFT","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"claimAdmin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"nftAsset","type":"address"}],"name":"createBNFT","outputs":[{"internalType":"address","name":"bNftProxy","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"nftAsset","type":"address"},{"internalType":"address","name":"bNftImpl","type":"address"}],"name":"createBNFTWithImpl","outputs":[{"internalType":"address","name":"bNftProxy","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"customSymbols","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"nftAsset","type":"address"}],"name":"getBNFTAddresses","outputs":[{"internalType":"address","name":"bNftProxy","type":"address"},{"internalType":"address","name":"bNftImpl","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"index","type":"uint16"}],"name":"getBNFTAddressesByIndex","outputs":[{"internalType":"address","name":"bNftProxy","type":"address"},{"internalType":"address","name":"bNftImpl","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getBNFTAssetList","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getDelegateCashContract","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getDelegateCashContractV2","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"genericImpl","type":"address"},{"internalType":"string","name":"namePrefix_","type":"string"},{"internalType":"string","name":"symbolPrefix_","type":"string"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"namePrefix","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"genericImpl","type":"address"}],"name":"setBNFTGenericImpl","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newAdmin","type":"address"}],"name":"setClaimAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newDelegateCash","type":"address"}],"name":"setDelegateCashContract","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newDelegateCash","type":"address"}],"name":"setDelegateCashContractV2","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbolPrefix","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"nftAsset","type":"address"},{"internalType":"address","name":"bNftImpl","type":"address"},{"internalType":"bytes","name":"encodedCallData","type":"bytes"}],"name":"upgradeBNFTWithImpl","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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Multichain Portfolio | 31 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.