ERC-721
Overview
Max Total Supply
3 LBNFI
Holders
3
Total Transfers
-
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
ImmutableBundle
Compiler Version
v0.8.17+commit.8df45f5f
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity 0.8.17; import "./PersonalBundlerFactory.sol"; import "./NftfiBundler.sol"; import "./utils/Ownable.sol"; import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol"; import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol"; import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import "@openzeppelin/contracts/security/Pausable.sol"; import "@openzeppelin/contracts/utils/Strings.sol"; /** * @title ImmutableBundle * @author NFTfi * @notice Bundle wrapper that allows users to lock bundles so they can be used for loans. * @dev This contract prevents owners of the bundles to remove any child, but they can still receive new children. * Solves the problem of bundles being emptied by their owner between they are listed and the loan begins. */ contract ImmutableBundle is ERC721Enumerable, IERC721Receiver, Ownable, Pausable { using SafeERC20 for IERC20; using Strings for uint256; // Incremental token id uint256 public tokenCount = 0; uint8 public constant personalBundleId = 1; // Address of the bundler contract NftfiBundler public immutable bundler; address public immutable personalBundlerFactory; string public baseURI; // immutable tokenId => bundleId mapping(uint256 => uint256) public bundleOfImmutable; // bundleId => immutable tokenId mapping(uint256 => uint256) public immutableOfBundle; // immutable tokenId => personalBundler contract mapping(uint256 => address) public personalBundlerOfImmutable; //personalBundler contract => immutable tokenId mapping(address => uint256) public immutableOfPersonalBundler; event ImmutableMinted(uint256 indexed immutableId, uint256 indexed bundleId, address indexed personalBundler); event ConvertedToPersonalBundler( uint256 indexed immutableId, uint256 indexed bundleId, address indexed personalBundler ); /** * @dev Stores the bundler, name and symbol * * @param _bundler Address of the bundler contract * @param _name name of the token contract * @param _symbol symbol of the token contract */ constructor( address _admin, address _bundler, address _personalBundlerFactory, string memory _name, string memory _symbol, string memory _customBaseURI ) ERC721(_name, _symbol) Ownable(_admin) { bundler = NftfiBundler(_bundler); personalBundlerFactory = _personalBundlerFactory; _setBaseURI(_customBaseURI); } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 _interfaceId) public view virtual override(ERC721Enumerable) returns (bool) { return _interfaceId == type(IERC721Receiver).interfaceId || super.supportsInterface(_interfaceId); } /** * @notice Mints a new bundle storing it as immutable bundle. * The bundle can receive children but there is no way to remove a child, unless withdrawing the bundle. * @param _to The address that owns the new immutable bundle * @return The id of the new created immutable bundle */ function mintBundle(address _to) external whenNotPaused returns (uint256) { uint256 bundleId = bundler.safeMint(address(this)); return _mintImmutableBundle(_to, bundleId); } /** * @notice Method invoked when a bundle is received * param The address that caused the transfer * @param _from The previous owner of the token * @param _bundleId The bundle that is being transferred * param _data Arbitrary data * @return the selector of this method */ function onERC721Received( address, address _from, uint256 _bundleId, bytes memory ) external virtual override whenNotPaused returns (bytes4) { require( msg.sender == address(bundler) || PersonalBundlerFactory(personalBundlerFactory).personalBundlerExists(msg.sender), "asset not allowed" ); // Special check for when onERC721Received is invoked from `mintBundle` call if (_from != address(0)) { uint256 immutableId; if (msg.sender == address(bundler)) { immutableId = _mintImmutableBundle(_from, _bundleId); } else { immutableId = _mintImmutablePersonalBundle(_from, msg.sender); } } return this.onERC721Received.selector; } /** * @notice Withdraw a bundle * @param _immutableId the id of the immutable bundle * @param _to the address of the receiver of the bundle */ function withdraw(uint256 _immutableId, address _to) external { _validateWithdraw(_immutableId, _to); uint256 bundleId = bundleOfImmutable[_immutableId]; address personalBundler = personalBundlerOfImmutable[_immutableId]; _burnImmutableBundle(_immutableId); if (personalBundler == address(0)) { bundler.safeTransferFrom(address(this), _to, bundleId); } else { IERC721(personalBundler).safeTransferFrom(address(this), _to, personalBundleId); } } /** * @notice Withdraw a bundle and remove all the children from the bundle * @param _immutableId the id of the immutable bundle * @param _to the address of the receiver of the bundle */ function withdrawAndDecompose(uint256 _immutableId, address _to) external { _validateWithdraw(_immutableId, _to); uint256 bundleId = bundleOfImmutable[_immutableId]; address personalBundler = personalBundlerOfImmutable[_immutableId]; _burnImmutableBundle(_immutableId); if (personalBundler == address(0)) { bundler.decomposeBundle(bundleId, _to); bundler.safeTransferFrom(address(this), _to, bundleId); } else { NftfiBundler(personalBundler).decomposeBundle(personalBundleId, _to); IERC721(personalBundler).safeTransferFrom(address(this), _to, personalBundleId); } } /** * Takes an existing immutable regular bundle and converts it to a personal bundle, * creates the personal bundler contract implicitly. * * @param _immutableId the id of the immutable bundle */ function createAndConvertToPersonalBundler(uint256 _immutableId) public { address personalBundler = PersonalBundlerFactory(personalBundlerFactory).createPersonalBundler(address(this)); convertToPersonalBundler(_immutableId, personalBundler); } /** * Takes an existing immutable regular bundle and converts it to a personal bundle, * has to be provided with a personal bundler contract address * * @param _immutableId the id of the immutable bundle * @param _personalBundler the address of the personal bundler conract */ function convertToPersonalBundler(uint256 _immutableId, address _personalBundler) public { require(ownerOf(_immutableId) == msg.sender, "msg.sender not eligible"); require(personalBundlerOfImmutable[_immutableId] == address(0), "already personal bundler"); require( PersonalBundlerFactory(personalBundlerFactory).personalBundlerExists(_personalBundler), "not personal bundler" ); require(ERC721(_personalBundler).ownerOf(personalBundleId) == address(this), "owner has to be this contract"); uint256 bundleId = bundleOfImmutable[_immutableId]; delete bundleOfImmutable[_immutableId]; delete immutableOfBundle[bundleId]; bundler.sendElementsToPersonalBundler(bundleId, _personalBundler); emit ConvertedToPersonalBundler(_immutableId, bundleId, _personalBundler); personalBundlerOfImmutable[_immutableId] = _personalBundler; immutableOfPersonalBundler[_personalBundler] = _immutableId; } /** * @notice this function initiates a flashloan to pull an airdrop from a tartget contract * * @param _immutableId - the id of the immutable bundle * @param _nftContract - contract address of the target nft of the drop * @param _nftId - id of the target nft of the drop * @param _target - address of the airdropping contract * @param _data - function selector to be called on the airdropping contract * @param _nftAirdrop - address of the used claiming nft in the drop * @param _nftAirdropId - id of the used claiming nft in the drop * @param _is1155 - * @param _nftAirdropAmount - amount in case of 1155 */ function pullAirdrop( uint256 _immutableId, address _nftContract, uint256 _nftId, address _target, bytes calldata _data, address _nftAirdrop, uint256 _nftAirdropId, bool _is1155, uint256 _nftAirdropAmount ) external { require(ownerOf(_immutableId) == msg.sender, "pullAirdrop msg.sender not eligible"); if (personalBundlerOfImmutable[_immutableId] != address(0)) { require( NftfiBundler(personalBundlerOfImmutable[_immutableId]).childExists(_nftContract, _nftId), "immutable-nft mismatch" ); NftfiBundler(personalBundlerOfImmutable[_immutableId]).pullAirdrop( _nftContract, _nftId, _target, _data, _nftAirdrop, _nftAirdropId, _is1155, _nftAirdropAmount, msg.sender ); } else { (, uint256 bundleId) = bundler.ownerOfChild(_nftContract, _nftId); require(bundleOfImmutable[_immutableId] == bundleId, "immutable-nft mismatch"); bundler.pullAirdrop( _nftContract, _nftId, _target, _data, _nftAirdrop, _nftAirdropId, _is1155, _nftAirdropAmount, msg.sender ); } } /** * @notice Validates the withdraw params * @param _immutableId the id of the immutable bundle * @param _to the address of the receiver of the bundle */ function _validateWithdraw(uint256 _immutableId, address _to) internal view { require(ownerOf(_immutableId) == msg.sender, "caller is not owner"); require(_to != address(0), "transfer to zero address"); } /** * @notice Mints a new immutable bundle. * @param _to The address that owns the new immutable bundle * @param _bundleId The associated bundle id * @return The id of the new created immutable bundle */ function _mintImmutableBundle(address _to, uint256 _bundleId) internal returns (uint256) { uint256 immutableId = ++tokenCount; _safeMint(_to, immutableId); bundleOfImmutable[immutableId] = _bundleId; immutableOfBundle[_bundleId] = immutableId; emit ImmutableMinted(immutableId, _bundleId, address(0)); return immutableId; } /** * @notice Mints a new immutable bundle. * @param _to The address that owns the new immutable bundle * @param _personalBundler The associated personal bundler * @return The id of the new created immutable bundle */ function _mintImmutablePersonalBundle(address _to, address _personalBundler) internal returns (uint256) { uint256 immutableId = ++tokenCount; _safeMint(_to, immutableId); personalBundlerOfImmutable[immutableId] = _personalBundler; immutableOfPersonalBundler[_personalBundler] = immutableId; emit ImmutableMinted(immutableId, 0, _personalBundler); return immutableId; } /** * @notice Burns an immutable bundle * @param _immutableId the id of the immutable bundle */ function _burnImmutableBundle(uint256 _immutableId) internal { _burn(_immutableId); if (personalBundlerOfImmutable[_immutableId] != address(0)) { address personalBundler = personalBundlerOfImmutable[_immutableId]; delete personalBundlerOfImmutable[_immutableId]; delete immutableOfPersonalBundler[personalBundler]; } else { uint256 bundleId = bundleOfImmutable[_immutableId]; delete bundleOfImmutable[_immutableId]; delete immutableOfBundle[bundleId]; } } /** * @notice used by the owner account to be able to drain ERC721 tokens received as airdrops * for the locked collateral NFT-s * @param _tokenAddress - address of the token contract for the token to be sent out * @param _tokenId - id token to be sent out * @param _receiver - receiver of the token */ function rescueERC721( address _tokenAddress, uint256 _tokenId, address _receiver ) external onlyOwner { IERC721 tokenContract = IERC721(_tokenAddress); if (_tokenAddress == address(bundler)) { require(immutableOfBundle[_tokenId] == 0, "token is in immutable"); } else if (PersonalBundlerFactory(personalBundlerFactory).personalBundlerExists(_tokenAddress)) { require(immutableOfPersonalBundler[_tokenAddress] == 0, "token is in immutable"); } require(tokenContract.ownerOf(_tokenId) == address(this), "nft not owned"); tokenContract.safeTransferFrom(address(this), _receiver, _tokenId); } /** * @notice used by the owner account to be able to drain ERC20 tokens received as airdrops * for the locked collateral NFT-s * @param _tokenAddress - address of the token contract for the token to be sent out * @param _receiver - receiver of the token */ function rescueERC20(address _tokenAddress, address _receiver) external onlyOwner { IERC20 tokenContract = IERC20(_tokenAddress); uint256 amount = tokenContract.balanceOf(address(this)); require(amount > 0, "no tokens owned"); tokenContract.safeTransfer(_receiver, amount); } /** * @dev Triggers stopped state. * * Requirements: * * - Only the owner can call this method. * - The contract must not be paused. */ function pause() external onlyOwner { _pause(); } /** * @dev Returns to normal state. * * Requirements: * * - Only the owner can call this method. * - The contract must be paused. */ function unpause() external onlyOwner { _unpause(); } /** * @dev Sets baseURI. * @param _customBaseURI - Base URI */ function setBaseURI(string memory _customBaseURI) external onlyOwner { _setBaseURI(_customBaseURI); } /** * @dev Sets baseURI. */ function _setBaseURI(string memory _customBaseURI) internal virtual { baseURI = bytes(_customBaseURI).length > 0 ? string(abi.encodePacked(_customBaseURI, _getChainID().toString(), "/")) : ""; } /** @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. */ function _baseURI() internal view virtual override returns (string memory) { return baseURI; } /** * @dev This function gets the current chain ID. */ function _getChainID() internal view returns (uint256) { uint256 id; // solhint-disable-next-line no-inline-assembly assembly { id := chainid() } return id; } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity 0.8.17; import "@openzeppelin/contracts/proxy/Clones.sol"; import "./utils/Ownable.sol"; import "./PersonalBundler.sol"; /** * @title PersonalBundlerFactory * @author NFTfi * @dev */ contract PersonalBundlerFactory is Ownable { address public immutable personalBundlerImplementation; string public baseURI; mapping(address => bool) public personalBundlerExists; event PersonalBundlerCreated(address indexed instance, address indexed owner, address creator); /** * @param _admin admin address capable of setting URI * @param _customBaseURI - Base URI * @param _personalBundlerImplementation - deployed master copy of the personal bundler contract */ constructor( address _admin, string memory _customBaseURI, address _personalBundlerImplementation ) Ownable(_admin) { baseURI = _customBaseURI; personalBundlerImplementation = _personalBundlerImplementation; } /** * @dev clones a new personal bundler contract * * @param _to - owner of the personal bundler */ function createPersonalBundler(address _to) external returns (address) { address instance = Clones.clone(personalBundlerImplementation); personalBundlerExists[instance] = true; PersonalBundler(instance).initialize(owner(), _to, baseURI); emit PersonalBundlerCreated(instance, _to, msg.sender); return instance; } /** * @dev Sets baseURI. * @param _customBaseURI - Base URI */ function setBaseURI(string memory _customBaseURI) external onlyOwner { baseURI = _customBaseURI; } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.17; import "./ERC998TopDown.sol"; import "./INftfiBundler.sol"; import "./IBundleBuilder.sol"; import "./IPermittedNFTs.sol"; import "./utils/Ownable.sol"; import "./airdrop/AirdropFlashLoan.sol"; import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol"; import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import "@openzeppelin/contracts/utils/Strings.sol"; /** * @title NftfiBundler * @author NFTfi * @dev ERC998 Top-Down Composable Non-Fungible Token that supports ERC721 children. */ contract NftfiBundler is ERC998TopDown, IBundleBuilder { using EnumerableSet for EnumerableSet.UintSet; using EnumerableSet for EnumerableSet.AddressSet; using SafeERC20 for IERC20; using Strings for uint256; address public immutable permittedNfts; address public immutable airdropFlashLoan; string public baseURI; /** * @dev Stores name and symbol * * @param _admin - Initial admin of this contract. * @param _name name of the token contract * @param _symbol symbol of the token contract */ constructor( address _admin, string memory _name, string memory _symbol, string memory _customBaseURI, address _permittedNfts, address _airdropFlashLoan ) ERC721(_name, _symbol) ERC998TopDown(_admin) { permittedNfts = _permittedNfts; airdropFlashLoan = _airdropFlashLoan; _setBaseURI(_customBaseURI); } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 _interfaceId) public view virtual override returns (bool) { return _interfaceId == type(IERC721Receiver).interfaceId || _interfaceId == type(INftfiBundler).interfaceId || super.supportsInterface(_interfaceId); } /** * @notice Tells if an asset is permitted or not * @param _asset address of the asset * @return true if permitted, false otherwise */ function permittedAsset(address _asset) public view returns (bool) { IPermittedNFTs permittedNFTs = IPermittedNFTs(permittedNfts); return permittedNFTs.getNFTPermit(_asset) > 0; } /** * @dev used to build a bundle from the BundleElements struct, * returns the id of the created bundle * * @param _bundleElements - the lists of erc721 tokens that are to be bundled */ function buildBundle(BundleElementERC721[] memory _bundleElements) external override returns (uint256) { uint256 tokenId = safeMint(msg.sender); _addBundleElements(tokenId, _bundleElements); return tokenId; } /** * @dev Adds a set of BundleElementERC721 objects to the specified token ID. * * @param _tokenId The ID of the token to add the bundle elements to. * @param _bundleElements The array of BundleElementERC721 objects to add. */ function addBundleElements(uint256 _tokenId, BundleElementERC721[] memory _bundleElements) external { _addBundleElements(_tokenId, _bundleElements); } /** * @dev Removes a set of BundleElementERC721 objects to the specified token ID. * * @param _tokenId The ID of the token to remove the bundle elements from. * @param _bundleElements The array of BundleElementERC721 objects to remove. */ function removeBundleElements(uint256 _tokenId, BundleElementERC721[] memory _bundleElements) external { _removeBundleElements(_tokenId, _bundleElements); } /** * @dev Adds and removes a set of BundleElementERC721 objects from the specified token ID. * * @param _tokenId The ID of the token to add and remove the bundle elements from. * @param _toAdd The array of BundleElementERC721 objects to add. * @param _toRemove The array of BundleElementERC721 objects to remove. */ function addAndRemoveBundleElements( uint256 _tokenId, BundleElementERC721[] memory _toAdd, BundleElementERC721[] memory _toRemove ) external { _addBundleElements(_tokenId, _toAdd); _removeBundleElements(_tokenId, _toRemove); } /** * @notice Remove all the children from the bundle * @dev This method may run out of gas if the list of children is too big. In that case, children can be removed * individually. * @param _tokenId the id of the bundle * @param _receiver address of the receiver of the children */ function decomposeBundle(uint256 _tokenId, address _receiver) external override { _validateReceiver(_receiver); _validateTransferSender(_tokenId); // In each iteration all contracts children are removed, so eventually all contracts are removed while (childContracts[_tokenId].length() > 0) { address childContract = childContracts[_tokenId].at(0); // In each iteration a child is removed, so eventually all contracts children are removed while (childTokens[_tokenId][childContract].length() > 0) { uint256 childId = childTokens[_tokenId][childContract].at(0); _removeChild(_tokenId, childContract, childId); try IERC721(childContract).safeTransferFrom(address(this), _receiver, childId) { // solhint-disable-previous-line no-empty-blocks } catch { _oldNFTsTransfer(_receiver, childContract, childId); } emit TransferChild(_tokenId, _receiver, childContract, childId); } } } /** * @notice Remove all the children from the bundle and send to personla bundler. * If bundle contains a legacy ERC721 element, this will not work. * @dev This method may run out of gas if the list of children is too big. In that case, children can be removed * individually. * @param _tokenId the id of the bundle * @param _personalBundler address of the receiver of the children */ function sendElementsToPersonalBundler(uint256 _tokenId, address _personalBundler) external virtual { _validateReceiver(_personalBundler); _validateTransferSender(_tokenId); require(_personalBundler != address(this), "cannot send to self"); require( IERC165(_personalBundler).supportsInterface(type(IERC998ERC721TopDown).interfaceId), "has to implement IERC998ERC721TopDown" ); uint256 personalBundleId = 1; //make sure sendeer owns personal bundler token require(IERC721(_personalBundler).ownerOf(personalBundleId) == msg.sender, "has to own personal bundle token"); // In each iteration all contracts children are removed, so eventually all contracts are removed while (childContracts[_tokenId].length() > 0) { address childContract = childContracts[_tokenId].at(0); // In each iteration a child is removed, so eventually all contracts children are removed while (childTokens[_tokenId][childContract].length() > 0) { uint256 childId = childTokens[_tokenId][childContract].at(0); _removeChild(_tokenId, childContract, childId); try IERC721(childContract).safeTransferFrom( address(this), _personalBundler, childId, abi.encodePacked(personalBundleId) ) { // solhint-disable-previous-line no-empty-blocks } catch { revert("only safe transfer"); } emit TransferChild(_tokenId, _personalBundler, childContract, childId); } } } /** * @dev Internal function to add a set of BundleElementERC721 objects to the specified token ID. * * @param _tokenId The ID of the token to add the bundle elements to. * @param _bundleElements The array of BundleElementERC721 objects to add. */ function _addBundleElements(uint256 _tokenId, BundleElementERC721[] memory _bundleElements) internal { require(_bundleElements.length > 0, "bundle is empty"); uint256 elementNumber = _bundleElements.length; for (uint256 i; i != elementNumber; ++i) { require(permittedAsset(_bundleElements[i].tokenContract), "erc721 not permitted"); if (_bundleElements[i].safeTransferable) { uint256 nuberOfIds = _bundleElements[i].ids.length; for (uint256 j; j != nuberOfIds; ++j) { IERC721(_bundleElements[i].tokenContract).safeTransferFrom( msg.sender, address(this), _bundleElements[i].ids[j], abi.encodePacked(_tokenId) ); } } else { uint256 nuberOfIds = _bundleElements[i].ids.length; for (uint256 j; j != nuberOfIds; ++j) { getChild(msg.sender, _tokenId, _bundleElements[i].tokenContract, _bundleElements[i].ids[j]); } } } emit AddBundleElements(_tokenId, _bundleElements); } /** * @dev Internal function to remove a set of BundleElementERC721 objects to the specified token ID. * * @param _tokenId The ID of the token to remove the bundle elements from. * @param _bundleElements The array of BundleElementERC721 objects to remove. */ function _removeBundleElements(uint256 _tokenId, BundleElementERC721[] memory _bundleElements) internal { require(_bundleElements.length > 0, "bundle is empty"); uint256 elementNumber = _bundleElements.length; for (uint256 i; i != elementNumber; ++i) { address erc721Contract = _bundleElements[i].tokenContract; uint256 nuberOfIds = _bundleElements[i].ids.length; for (uint256 j; j != nuberOfIds; ++j) { uint256 childId = _bundleElements[i].ids[j]; _validateChildTransfer(_tokenId, erc721Contract, childId); _removeChild(_tokenId, erc721Contract, childId); if (_bundleElements[i].safeTransferable) { IERC721(erc721Contract).safeTransferFrom(address(this), msg.sender, childId); } else { _oldNFTsTransfer(msg.sender, erc721Contract, childId); } emit TransferChild(_tokenId, msg.sender, erc721Contract, childId); } } emit RemoveBundleElements(_tokenId, _bundleElements); } /** * @dev Update the state to receive a ERC721 child * Overrides the implementation to check if the asset is permitted * @param _from The owner of the child token * @param _tokenId The token receiving the child * @param _childContract The ERC721 contract of the child token * @param _childTokenId The token that is being transferred to the parent */ function _receiveChild( address _from, uint256 _tokenId, address _childContract, uint256 _childTokenId ) internal virtual override { require(permittedAsset(_childContract), "erc721 not permitted"); super._receiveChild(_from, _tokenId, _childContract, _childTokenId); } /** * @dev Override validation if it is a transfer from the airdropFlashLoan contract giving back the flashloan. * Validates the data from a child transfer and receives it otherwise * @param _from The owner of the child token * @param _childContract The ERC721 contract of the child token * @param _childTokenId The token that is being transferred to the parent * @param _data Up to the first 32 bytes contains an integer which is the receiving parent tokenId */ function _validateAndReceiveChild( address _from, address _childContract, uint256 _childTokenId, bytes memory _data ) internal virtual override { if (_from == airdropFlashLoan) { return; } else { super._validateAndReceiveChild(_from, _childContract, _childTokenId, _data); } } /** * @notice this function initiates a flashloan to pull an airdrop from a tartget contract * * @param _nftContract - contract address of the target nft of the drop * @param _nftId - id of the target nft of the drop * @param _target - address of the airdropping contract * @param _data - function selector to be called on the airdropping contract * @param _nftAirdrop - address of the used claiming nft in the drop * @param _nftAirdropId - id of the used claiming nft in the drop * @param _is1155 - * @param _nftAirdropAmount - amount in case of 1155 */ function pullAirdrop( address _nftContract, uint256 _nftId, address _target, bytes calldata _data, address _nftAirdrop, uint256 _nftAirdropId, bool _is1155, uint256 _nftAirdropAmount, address _beneficiary ) external { uint256 tokenId = childTokenOwner[_nftContract][_nftId]; address rootOwner = address(uint160(uint256(rootOwnerOf(tokenId)))); require(rootOwner == msg.sender, "pullAirdrop msg.sender not eligible"); IERC721(_nftContract).safeTransferFrom(address(this), airdropFlashLoan, _nftId); AirdropFlashLoan(airdropFlashLoan).pullAirdrop( _nftContract, _nftId, _target, _data, _nftAirdrop, _nftAirdropId, _is1155, _nftAirdropAmount, _beneficiary ); //take back collateral IERC721(_nftContract).safeTransferFrom(airdropFlashLoan, address(this), _nftId); } /** * @notice used by the owner account to be able to drain ERC721 tokens received as airdrops * for the locked collateral NFT-s * @param _tokenAddress - address of the token contract for the token to be sent out * @param _tokenId - id token to be sent out * @param _receiver - receiver of the token */ function rescueERC721( address _tokenAddress, uint256 _tokenId, address _receiver ) external onlyOwner { IERC721 tokenContract = IERC721(_tokenAddress); require(childTokenOwner[_tokenAddress][_tokenId] == 0, "token is in bundle"); require(tokenContract.ownerOf(_tokenId) == address(this), "nft not owned"); tokenContract.safeTransferFrom(address(this), _receiver, _tokenId); } /** * @notice used by the owner account to be able to drain ERC20 tokens received as airdrops * for the locked collateral NFT-s * @param _tokenAddress - address of the token contract for the token to be sent out * @param _receiver - receiver of the token */ function rescueERC20(address _tokenAddress, address _receiver) external onlyOwner { IERC20 tokenContract = IERC20(_tokenAddress); uint256 amount = tokenContract.balanceOf(address(this)); require(amount > 0, "no tokens owned"); tokenContract.safeTransfer(_receiver, amount); } /** * @dev Sets baseURI. * @param _customBaseURI - Base URI */ function setBaseURI(string memory _customBaseURI) external onlyOwner { _setBaseURI(_customBaseURI); } /** * @dev Sets baseURI. */ function _setBaseURI(string memory _customBaseURI) internal virtual { baseURI = bytes(_customBaseURI).length > 0 ? string(abi.encodePacked(_customBaseURI, _getChainID().toString(), "/")) : ""; } /** @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. */ function _baseURI() internal view virtual override returns (string memory) { return baseURI; } /** * @dev This function gets the current chain ID. */ function _getChainID() internal view returns (uint256) { uint256 id; // solhint-disable-next-line no-inline-assembly assembly { id := chainid() } return id; } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity 0.8.17; import "@openzeppelin/contracts/utils/Context.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. * * Modified version from openzeppelin/contracts/access/Ownable.sol that allows to * initialize the owner using a parameter in the constructor */ abstract contract Ownable is Context { address private _owner; address private _ownerCandidate; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor(address _initialOwner) { _setOwner(_initialOwner); } /** * @dev Requests transferring ownership of the contract to a new account (`_newOwnerCandidate`). * Can only be called by the current owner. */ function requestTransferOwnership(address _newOwnerCandidate) public virtual onlyOwner { require(_newOwnerCandidate != address(0), "Ownable: new owner is the zero address"); _ownerCandidate = _newOwnerCandidate; } function acceptTransferOwnership() public virtual { require(_ownerCandidate == _msgSender(), "Ownable: not owner candidate"); _setOwner(_ownerCandidate); delete _ownerCandidate; } function cancelTransferOwnership() public virtual onlyOwner { delete _ownerCandidate; } function rejectTransferOwnership() public virtual { require(_ownerCandidate == _msgSender(), "Ownable: not owner candidate"); delete _ownerCandidate; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Sets the owner. */ function _setOwner(address _newOwner) internal { address oldOwner = _owner; _owner = _newOwner; emit OwnershipTransferred(oldOwner, _newOwner); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../ERC721.sol"; import "./IERC721Enumerable.sol"; /** * @dev This implements an optional extension of {ERC721} defined in the EIP that adds * enumerability of all the token ids in the contract as well as all token ids owned by each * account. */ abstract contract ERC721Enumerable is ERC721, IERC721Enumerable { // Mapping from owner to list of owned token IDs mapping(address => mapping(uint256 => uint256)) private _ownedTokens; // Mapping from token ID to index of the owner tokens list mapping(uint256 => uint256) private _ownedTokensIndex; // Array with all token ids, used for enumeration uint256[] private _allTokens; // Mapping from token id to position in the allTokens array mapping(uint256 => uint256) private _allTokensIndex; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) { return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. */ function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds"); return _ownedTokens[owner][index]; } /** * @dev See {IERC721Enumerable-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _allTokens.length; } /** * @dev See {IERC721Enumerable-tokenByIndex}. */ function tokenByIndex(uint256 index) public view virtual override returns (uint256) { require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds"); return _allTokens[index]; } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` cannot be the zero address. * - `to` cannot be the zero address. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual override { super._beforeTokenTransfer(from, to, tokenId); if (from == address(0)) { _addTokenToAllTokensEnumeration(tokenId); } else if (from != to) { _removeTokenFromOwnerEnumeration(from, tokenId); } if (to == address(0)) { _removeTokenFromAllTokensEnumeration(tokenId); } else if (to != from) { _addTokenToOwnerEnumeration(to, tokenId); } } /** * @dev Private function to add a token to this extension's ownership-tracking data structures. * @param to address representing the new owner of the given token ID * @param tokenId uint256 ID of the token to be added to the tokens list of the given address */ function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { uint256 length = ERC721.balanceOf(to); _ownedTokens[to][length] = tokenId; _ownedTokensIndex[tokenId] = length; } /** * @dev Private function to add a token to this extension's token tracking data structures. * @param tokenId uint256 ID of the token to be added to the tokens list */ function _addTokenToAllTokensEnumeration(uint256 tokenId) private { _allTokensIndex[tokenId] = _allTokens.length; _allTokens.push(tokenId); } /** * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for * gas optimizations e.g. when performing a transfer operation (avoiding double writes). * This has O(1) time complexity, but alters the order of the _ownedTokens array. * @param from address representing the previous owner of the given token ID * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address */ function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = ERC721.balanceOf(from) - 1; uint256 tokenIndex = _ownedTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary if (tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } // This also deletes the contents at the last position of the array delete _ownedTokensIndex[tokenId]; delete _ownedTokens[from][lastTokenIndex]; } /** * @dev Private function to remove a token from this extension's token tracking data structures. * This has O(1) time complexity, but alters the order of the _allTokens array. * @param tokenId uint256 ID of the token to be removed from the tokens list */ function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private { // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _allTokens.length - 1; uint256 tokenIndex = _allTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding // an 'if' statement (like in _removeTokenFromOwnerEnumeration) uint256 lastTokenId = _allTokens[lastTokenIndex]; _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index // This also deletes the contents at the last position of the array delete _allTokensIndex[tokenId]; _allTokens.pop(); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../IERC20.sol"; import "../../../utils/Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom( IERC20 token, address from, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove( IERC20 token, address spender, uint256 value ) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' require( (value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender) + value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance( IERC20 token, address spender, uint256 value ) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); uint256 newAllowance = oldAllowance - value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which allows children to implement an emergency stop * mechanism that can be triggered by an authorized account. * * This module is used through inheritance. It will make available the * modifiers `whenNotPaused` and `whenPaused`, which can be applied to * the functions of your contract. Note that they will not be pausable by * simply including this module, only once the modifiers are put in place. */ abstract contract Pausable is Context { /** * @dev Emitted when the pause is triggered by `account`. */ event Paused(address account); /** * @dev Emitted when the pause is lifted by `account`. */ event Unpaused(address account); bool private _paused; /** * @dev Initializes the contract in unpaused state. */ constructor() { _paused = false; } /** * @dev Returns true if the contract is paused, and false otherwise. */ function paused() public view virtual returns (bool) { return _paused; } /** * @dev Modifier to make a function callable only when the contract is not paused. * * Requirements: * * - The contract must not be paused. */ modifier whenNotPaused() { require(!paused(), "Pausable: paused"); _; } /** * @dev Modifier to make a function callable only when the contract is paused. * * Requirements: * * - The contract must be paused. */ modifier whenPaused() { require(paused(), "Pausable: not paused"); _; } /** * @dev Triggers stopped state. * * Requirements: * * - The contract must not be paused. */ function _pause() internal virtual whenNotPaused { _paused = true; emit Paused(_msgSender()); } /** * @dev Returns to normal state. * * Requirements: * * - The contract must be paused. */ function _unpause() internal virtual whenPaused { _paused = false; emit Unpaused(_msgSender()); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev https://eips.ethereum.org/EIPS/eip-1167[EIP 1167] is a standard for * deploying minimal proxy contracts, also known as "clones". * * > To simply and cheaply clone contract functionality in an immutable way, this standard specifies * > a minimal bytecode implementation that delegates all calls to a known, fixed address. * * The library includes functions to deploy a proxy using either `create` (traditional deployment) or `create2` * (salted deterministic deployment). It also includes functions to predict the addresses of clones deployed using the * deterministic method. * * _Available since v3.4._ */ library Clones { /** * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`. * * This function uses the create opcode, which should never revert. */ function clone(address implementation) internal returns (address instance) { assembly { let ptr := mload(0x40) mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000) mstore(add(ptr, 0x14), shl(0x60, implementation)) mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000) instance := create(0, ptr, 0x37) } require(instance != address(0), "ERC1167: create failed"); } /** * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`. * * This function uses the create2 opcode and a `salt` to deterministically deploy * the clone. Using the same `implementation` and `salt` multiple time will revert, since * the clones cannot be deployed twice at the same address. */ function cloneDeterministic(address implementation, bytes32 salt) internal returns (address instance) { assembly { let ptr := mload(0x40) mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000) mstore(add(ptr, 0x14), shl(0x60, implementation)) mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000) instance := create2(0, ptr, 0x37, salt) } require(instance != address(0), "ERC1167: create2 failed"); } /** * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}. */ function predictDeterministicAddress( address implementation, bytes32 salt, address deployer ) internal pure returns (address predicted) { assembly { let ptr := mload(0x40) mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000) mstore(add(ptr, 0x14), shl(0x60, implementation)) mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf3ff00000000000000000000000000000000) mstore(add(ptr, 0x38), shl(0x60, deployer)) mstore(add(ptr, 0x4c), salt) mstore(add(ptr, 0x6c), keccak256(ptr, 0x37)) predicted := keccak256(add(ptr, 0x37), 0x55) } } /** * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}. */ function predictDeterministicAddress(address implementation, bytes32 salt) internal view returns (address predicted) { return predictDeterministicAddress(implementation, salt, address(this)); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.17; import "@openzeppelin/contracts/proxy/utils/Initializable.sol"; import "@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol"; import "./NftfiBundler.sol"; /** * @title PersonalBundler * @author NFTfi * @dev ERC998 Top-Down Composable Non-Fungible Token that supports ERC721 children. */ contract PersonalBundler is NftfiBundler, Initializable, IERC1155Receiver { using SafeERC20 for IERC20; uint8 public constant bundleId = 1; address public lastBundleOwner; event Initialized(address owner); /** * @dev only runs when the master copy is deplyoed, when cloned then initializer is ran * @param _admin admin address capable of setting URI-s and pausing * @param _permittedNfts permitted nft-s contract of the loan system * @param _airdropFlashLoan airdrop flashloan contract deplyoed alongside */ constructor( address _admin, address _permittedNfts, address _airdropFlashLoan ) NftfiBundler(_admin, "", "", "", _permittedNfts, _airdropFlashLoan) { //original implementation rendering it unusable safeMint(_admin); } /** @dev function enforcing that the caller is the bundle token owner */ function onlyBundleOwner() internal view { require(ownerOf(bundleId) == msg.sender, "Only bundle owner"); } /** * @dev sets up initial parameters after cloning * * @param _admin admin address capable of setting URI-s and pausing * @param _owner of the personal bundler * @param _customBaseURI - Base URI */ function initialize( address _admin, address _owner, string memory _customBaseURI ) external initializer nonReentrant { _setOwner(_admin); _setBaseURI(_customBaseURI); safeMint(_owner); emit Initialized(_owner); } /** * @dev See {IERC721Metadata-name}. * have to override, because cloning doesn't work for it */ function name() public view virtual override returns (string memory) { return "NFTFi Personal Bundle"; } /** * @dev See {IERC721Metadata-symbol}. * have to override, because cloning doesn't work for it */ function symbol() public view virtual override returns (string memory) { return "PBNFI"; } function safeMint(address _to) public override returns (uint256) { require(lastBundleOwner == address(0) || lastBundleOwner == msg.sender, "only last bundle owner"); require(tokenCount == 0, "only 1 bundle"); return super.safeMint(_to); } function burn() public { onlyBundleOwner(); lastBundleOwner = msg.sender; require(totalChildContracts(bundleId) == 0, "bundle has to be empty"); tokenCount -= 1; _burn(bundleId); } /** * @notice disabled here */ function sendElementsToPersonalBundler(uint256, address) external virtual override { revert("already personal bundler"); } /** * @dev Validates the data from a child transfer and receives it * @param _from The owner of the child token * @param _childContract The ERC721 contract of the child token * @param _childTokenId The token that is being transferred to the parent * @param _data Up to the first 32 bytes contains an integer which is the receiving parent tokenId */ function _validateAndReceiveChild( address _from, address _childContract, uint256 _childTokenId, bytes memory _data ) internal virtual override { //CHECK DISABLED require(_data.length > 0, "data must contain tokenId to transfer the child token to"); // if no data: airdrop if (_data.length > 0) { // convert up to 32 bytes of _data to uint256, owner nft tokenId passed as uint in bytes uint256 tokenId = _parseTokenId(_data); // 1 is the only existing valid token id, so all other data is an airdrop if (tokenId == bundleId) { _receiveChild(_from, tokenId, _childContract, _childTokenId); } } } /** * @notice used by the owner account to be able to drain ERC721 tokens received as airdrops * for the locked collateral NFT-s * @param _tokenAddress - address of the token contract for the token to be sent out * @param _tokenId - id token to be sent out * @param _receiver - receiver of the token */ function drainERC721Airdrop( address _tokenAddress, uint256 _tokenId, address _receiver ) external { onlyBundleOwner(); IERC721 tokenContract = IERC721(_tokenAddress); require(childTokenOwner[_tokenAddress][_tokenId] == 0, "token is in bundle"); require(tokenContract.ownerOf(_tokenId) == address(this), "nft not owned"); tokenContract.safeTransferFrom(address(this), _receiver, _tokenId); } /** * @notice used by the owner account to be able to drain ERC1155 tokens received as airdrops * for the locked collateral NFT-s * @param _tokenAddress - address of the token contract for the token to be sent out * @param _tokenId - id token to be sent out * @param _receiver - receiver of the token */ function drainERC1155Airdrop( address _tokenAddress, uint256 _tokenId, address _receiver ) external { onlyBundleOwner(); IERC1155 tokenContract = IERC1155(_tokenAddress); uint256 amount = tokenContract.balanceOf(address(this), _tokenId); require(amount > 0, "no nfts owned"); tokenContract.safeTransferFrom(address(this), _receiver, _tokenId, amount, ""); } /** * @notice used by the owner account to be able to drain ERC20 tokens received as airdrops * for the locked collateral NFT-s * @param _tokenAddress - address of the token contract for the token to be sent out * @param _receiver - receiver of the token */ function drainERC20Airdrop(address _tokenAddress, address _receiver) external { onlyBundleOwner(); IERC20 tokenContract = IERC20(_tokenAddress); uint256 amount = tokenContract.balanceOf(address(this)); require(amount > 0, "no tokens owned"); tokenContract.safeTransfer(_receiver, amount); } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 _interfaceId) public view virtual override(IERC165, NftfiBundler) returns (bool) { return _interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(_interfaceId); } /** * @dev Handles the receipt of a single ERC1155 token type. This function is called at the end of a * `safeTransferFrom` after the balance has been updated. * @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if allowed */ function onERC1155Received( address, address, uint256, uint256, bytes calldata ) external virtual override returns (bytes4) { return this.onERC1155Received.selector; } /** * @dev Handles the receipt of a multiple ERC1155 token types. This function is called at the end of a * `safeBatchTransferFrom` after the balances have been updated. * @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if allowed */ function onERC1155BatchReceived( address, address, uint256[] calldata, uint256[] calldata, bytes calldata ) external virtual override returns (bytes4) { return this.onERC1155BatchReceived.selector; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /* * @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 Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {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. */ abstract contract Initializable { /** * @dev Indicates that the contract has been initialized. */ bool private _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private _initializing; /** * @dev Modifier to protect an initializer function from being invoked twice. */ modifier initializer() { require(_initializing || !_initialized, "Initializable: contract is already initialized"); bool isTopLevelCall = !_initializing; if (isTopLevelCall) { _initializing = true; _initialized = true; } _; if (isTopLevelCall) { _initializing = false; } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev _Available since v3.1._ */ interface IERC1155Receiver is IERC165 { /** @dev Handles the receipt of a single ERC1155 token type. This function is called at the end of a `safeTransferFrom` after the balance has been updated. To accept the transfer, this must return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` (i.e. 0xf23a6e61, or its own function selector). @param operator The address which initiated the transfer (i.e. msg.sender) @param from The address which previously owned the token @param id The ID of the token being transferred @param value The amount of tokens being transferred @param data Additional data with no specified format @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed */ function onERC1155Received( address operator, address from, uint256 id, uint256 value, bytes calldata data ) external returns (bytes4); /** @dev Handles the receipt of a multiple ERC1155 token types. This function is called at the end of a `safeBatchTransferFrom` after the balances have been updated. To accept the transfer(s), this must return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` (i.e. 0xbc197c81, or its own function selector). @param operator The address which initiated the batch transfer (i.e. msg.sender) @param from The address which previously owned the token @param ids An array containing ids of each token being transferred (order and length must match values array) @param values An array containing amounts of each token being transferred (order and length must match ids array) @param data Additional data with no specified format @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed */ function onERC1155BatchReceived( address operator, address from, uint256[] calldata ids, uint256[] calldata values, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT 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 IERC165 { /** * @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); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.17; import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol"; import "@openzeppelin/contracts/token/ERC721/IERC721.sol"; import "@openzeppelin/contracts/utils/Address.sol"; import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import "@openzeppelin/contracts/security/Pausable.sol"; import "./utils/Ownable.sol"; import "./IERC998ERC721TopDown.sol"; import "./IERC998ERC721TopDownEnumerable.sol"; /** * @title ERC998TopDown * @author NFTfi * @dev ERC998ERC721 Top-Down Composable Non-Fungible Token. * See https://github.com/ethereum/EIPs/blob/master/EIPS/eip-998.md * This implementation does not support children to be nested bundles, erc20 nor bottom-up */ abstract contract ERC998TopDown is ERC721Enumerable, IERC998ERC721TopDown, IERC998ERC721TopDownEnumerable, ReentrancyGuard, Ownable, Pausable { using Address for address; using EnumerableSet for EnumerableSet.UintSet; using EnumerableSet for EnumerableSet.AddressSet; // return this.rootOwnerOf.selector ^ this.rootOwnerOfChild.selector ^ // this.tokenOwnerOf.selector ^ this.ownerOfChild.selector; bytes32 public constant ERC998_MAGIC_VALUE = 0xcd740db500000000000000000000000000000000000000000000000000000000; bytes32 internal constant ERC998_MAGIC_MASK = 0xffffffff00000000000000000000000000000000000000000000000000000000; uint256 public tokenCount = 0; // tokenId => child contract mapping(uint256 => EnumerableSet.AddressSet) internal childContracts; // tokenId => (child address => array of child tokens) mapping(uint256 => mapping(address => EnumerableSet.UintSet)) internal childTokens; // child address => childId => tokenId // this is used for ERC721 type tokens mapping(address => mapping(uint256 => uint256)) internal childTokenOwner; /** * @dev Stores the admin * * @param _admin address capable of pausing */ constructor(address _admin) Ownable(_admin) { // solhint-disable-previous-line no-empty-blocks } /** * @notice Tells whether the ERC721 type child exists or not * @param _childContract The contract address of the child token * @param _childTokenId The tokenId of the child * @return True if the child exists, false otherwise */ function childExists(address _childContract, uint256 _childTokenId) external view virtual returns (bool) { uint256 tokenId = childTokenOwner[_childContract][_childTokenId]; return tokenId != 0; } /** * @notice Get the total number of child contracts with tokens that are owned by _tokenId * @param _tokenId The parent token of child tokens in child contracts * @return uint256 The total number of child contracts with tokens owned by _tokenId */ function totalChildContracts(uint256 _tokenId) public view virtual override returns (uint256) { return childContracts[_tokenId].length(); } /** * @notice Get child contract by tokenId and index * @param _tokenId The parent token of child tokens in child contract * @param _index The index position of the child contract * @return childContract The contract found at the _tokenId and index */ function childContractByIndex(uint256 _tokenId, uint256 _index) external view virtual override returns (address childContract) { return childContracts[_tokenId].at(_index); } /** * @notice Get the total number of child tokens owned by tokenId that exist in a child contract * @param _tokenId The parent token of child tokens * @param _childContract The child contract containing the child tokens * @return uint256 The total number of child tokens found in child contract that are owned by _tokenId */ function totalChildTokens(uint256 _tokenId, address _childContract) external view override returns (uint256) { return childTokens[_tokenId][_childContract].length(); } /** * @notice Get child token owned by _tokenId, in child contract, at index position * @param _tokenId The parent token of the child token * @param _childContract The child contract of the child token * @param _index The index position of the child token * @return childTokenId The child tokenId for the parent token, child token and index */ function childTokenByIndex( uint256 _tokenId, address _childContract, uint256 _index ) external view virtual override returns (uint256 childTokenId) { return childTokens[_tokenId][_childContract].at(_index); } /** * @notice Get the parent tokenId and its owner of a ERC721 child token * @param _childContract The contract address of the child token * @param _childTokenId The tokenId of the child * @return parentTokenOwner The parent address of the parent token and ERC998 magic value * @return parentTokenId The parent tokenId of _childTokenId */ function ownerOfChild(address _childContract, uint256 _childTokenId) external view virtual override returns (bytes32 parentTokenOwner, uint256 parentTokenId) { parentTokenId = childTokenOwner[_childContract][_childTokenId]; require(parentTokenId != 0, "child token does not exist"); address parentTokenOwnerAddress = ownerOf(parentTokenId); // solhint-disable-next-line no-inline-assembly assembly { parentTokenOwner := or(ERC998_MAGIC_VALUE, parentTokenOwnerAddress) } } /** * @notice Get the root owner of tokenId * @param _tokenId The token to query for a root owner address * @return rootOwner The root owner at the top of tree of tokens and ERC998 magic value. */ function rootOwnerOf(uint256 _tokenId) public view virtual override returns (bytes32 rootOwner) { return rootOwnerOfChild(address(0), _tokenId); } /** * @notice Get the root owner of a child token * @dev Returns the owner at the top of the tree of composables * Use Cases handled: * - Case 1: Token owner is this contract and token. * - Case 2: Token owner is other external top-down composable * - Case 3: Token owner is other contract * - Case 4: Token owner is user * @param _childContract The contract address of the child token * @param _childTokenId The tokenId of the child * @return rootOwner The root owner at the top of tree of tokens and ERC998 magic value */ function rootOwnerOfChild(address _childContract, uint256 _childTokenId) public view virtual override returns (bytes32 rootOwner) { address rootOwnerAddress; if (_childContract != address(0)) { (rootOwnerAddress, _childTokenId) = _ownerOfChild(_childContract, _childTokenId); } else { rootOwnerAddress = ownerOf(_childTokenId); } if (rootOwnerAddress.isContract()) { try IERC998ERC721TopDown(rootOwnerAddress).rootOwnerOfChild(address(this), _childTokenId) returns ( bytes32 returnedRootOwner ) { // Case 2: Token owner is other external top-down composable if (returnedRootOwner & ERC998_MAGIC_MASK == ERC998_MAGIC_VALUE) { return returnedRootOwner; } } catch { // solhint-disable-previous-line no-empty-blocks } } // Case 3: Token owner is other contract // Or // Case 4: Token owner is user // solhint-disable-next-line no-inline-assembly assembly { rootOwner := or(ERC998_MAGIC_VALUE, rootOwnerAddress) } return rootOwner; } /** * @dev See {IERC165-supportsInterface}. * The interface id 0x1efdf36a is added. The spec claims it to be the interface id of IERC998ERC721TopDown. * But it is not. * It is added anyway in case some contract checks it being compliant with the spec. */ function supportsInterface(bytes4 _interfaceId) public view virtual override(ERC721Enumerable) returns (bool) { return _interfaceId == type(IERC998ERC721TopDown).interfaceId || _interfaceId == type(IERC998ERC721TopDownEnumerable).interfaceId || _interfaceId == 0x1efdf36a || super.supportsInterface(_interfaceId); } /** * @notice Mints a new bundle * @param _to The address that owns the new bundle * @return The id of the new bundle */ function safeMint(address _to) public virtual whenNotPaused returns (uint256) { uint256 id = ++tokenCount; _safeMint(_to, id); return id; } /** * @notice Transfer child token from top-down composable to address * @param _fromTokenId The owning token to transfer from * @param _to The address that receives the child token * @param _childContract The ERC721 contract of the child token * @param _childTokenId The tokenId of the token that is being transferred */ function safeTransferChild( uint256 _fromTokenId, address _to, address _childContract, uint256 _childTokenId ) external virtual override nonReentrant { _transferChild(_fromTokenId, _to, _childContract, _childTokenId); IERC721(_childContract).safeTransferFrom(address(this), _to, _childTokenId); emit TransferChild(_fromTokenId, _to, _childContract, _childTokenId); } /** * @notice Transfer child token from top-down composable to address or other top-down composable * @param _fromTokenId The owning token to transfer from * @param _to The address that receives the child token * @param _childContract The ERC721 contract of the child token * @param _childTokenId The tokenId of the token that is being transferred * @param _data Additional data with no specified format */ function safeTransferChild( uint256 _fromTokenId, address _to, address _childContract, uint256 _childTokenId, bytes memory _data ) external virtual override nonReentrant { _transferChild(_fromTokenId, _to, _childContract, _childTokenId); if (_to == address(this)) { _validateAndReceiveChild(msg.sender, _childContract, _childTokenId, _data); } else { IERC721(_childContract).safeTransferFrom(address(this), _to, _childTokenId, _data); emit TransferChild(_fromTokenId, _to, _childContract, _childTokenId); } } /** * @dev Transfer child token from top-down composable to address * @param _fromTokenId The owning token to transfer from * @param _to The address that receives the child token * @param _childContract The ERC721 contract of the child token * @param _childTokenId The tokenId of the token that is being transferred */ function transferChild( uint256 _fromTokenId, address _to, address _childContract, uint256 _childTokenId ) external virtual override nonReentrant { _transferChild(_fromTokenId, _to, _childContract, _childTokenId); _oldNFTsTransfer(_to, _childContract, _childTokenId); emit TransferChild(_fromTokenId, _to, _childContract, _childTokenId); } /** * @notice NOT SUPPORTED * Intended to transfer bottom-up composable child token from top-down composable to other ERC721 token. */ function transferChildToParent( uint256, address, uint256, address, uint256, bytes memory ) external virtual override { revert("BOTTOM_UP_CHILD_NOT_SUPPORTED"); } /** * @notice Transfer a child token from an ERC721 contract to a composable. Used for old tokens that does not * have a safeTransferFrom method like cryptokitties * @dev This contract has to be approved first in _childContract * @param _from The address that owns the child token. * @param _tokenId The token that becomes the parent owner * @param _childContract The ERC721 contract of the child token * @param _childTokenId The tokenId of the child token */ function getChild( address _from, uint256 _tokenId, address _childContract, uint256 _childTokenId ) public virtual override whenNotPaused nonReentrant { require(_from == msg.sender, "_from should be msg.sender"); _receiveChild(_from, _tokenId, _childContract, _childTokenId); IERC721(_childContract).transferFrom(_from, address(this), _childTokenId); } /** * @notice A token receives a child token * param The address that caused the transfer * @param _from The owner of the child token * @param _childTokenId The token that is being transferred to the parent * @param _data Up to the first 32 bytes contains an integer which is the receiving parent tokenId * @return the selector of this method */ function onERC721Received( address, address _from, uint256 _childTokenId, bytes calldata _data ) external virtual override whenNotPaused nonReentrant returns (bytes4) { _validateAndReceiveChild(_from, msg.sender, _childTokenId, _data); return this.onERC721Received.selector; } /** * @dev ERC721 implementation hook that is called before any token transfer. Prevents nested bundles * @param _from address of the current owner of the token * @param _to destination address * @param _tokenId id of the token to transfer */ function _beforeTokenTransfer( address _from, address _to, uint256 _tokenId ) internal virtual override { require(_to != address(this), "nested bundles not allowed"); super._beforeTokenTransfer(_from, _to, _tokenId); } /** * @dev Validates the child transfer parameters and remove the child from the bundle * @param _fromTokenId The owning token to transfer from * @param _to The address that receives the child token * @param _childContract The ERC721 contract of the child token * @param _childTokenId The tokenId of the token that is being transferred */ function _transferChild( uint256 _fromTokenId, address _to, address _childContract, uint256 _childTokenId ) internal virtual { _validateReceiver(_to); _validateChildTransfer(_fromTokenId, _childContract, _childTokenId); _removeChild(_fromTokenId, _childContract, _childTokenId); } /** * @dev Validates the child transfer parameters * @param _fromTokenId The owning token to transfer from * @param _childContract The ERC721 contract of the child token * @param _childTokenId The tokenId of the token that is being transferred */ function _validateChildTransfer( uint256 _fromTokenId, address _childContract, uint256 _childTokenId ) internal virtual { uint256 tokenId = childTokenOwner[_childContract][_childTokenId]; require(tokenId != 0, "_transferChild _childContract _childTokenId not found"); require(tokenId == _fromTokenId, "ComposableTopDown: _transferChild wrong tokenId found"); _validateTransferSender(tokenId); } /** * @dev Validates the receiver of a child transfer * @param _to The address that receives the child token */ function _validateReceiver(address _to) internal virtual { require(_to != address(0), "child transfer to zero address"); } /** * @dev Updates the state to remove a child * @param _tokenId The owning token to transfer from * @param _childContract The ERC721 contract of the child token * @param _childTokenId The tokenId of the token that is being transferred */ function _removeChild( uint256 _tokenId, address _childContract, uint256 _childTokenId ) internal virtual { // remove child token childTokens[_tokenId][_childContract].remove(_childTokenId); delete childTokenOwner[_childContract][_childTokenId]; // remove contract if (childTokens[_tokenId][_childContract].length() == 0) { childContracts[_tokenId].remove(_childContract); } } /** * @dev Validates the data from a child transfer and receives it * @param _from The owner of the child token * @param _childContract The ERC721 contract of the child token * @param _childTokenId The token that is being transferred to the parent * @param _data Up to the first 32 bytes contains an integer which is the receiving parent tokenId */ function _validateAndReceiveChild( address _from, address _childContract, uint256 _childTokenId, bytes memory _data ) internal virtual { require(_data.length > 0, "data must contain tokenId to transfer the child token to"); // convert up to 32 bytes of _data to uint256, owner nft tokenId passed as uint in bytes uint256 tokenId = _parseTokenId(_data); _receiveChild(_from, tokenId, _childContract, _childTokenId); } /** * @dev Update the state to receive a child * @param _from The owner of the child token * @param _tokenId The token receiving the child * @param _childContract The ERC721 contract of the child token * @param _childTokenId The token that is being transferred to the parent */ function _receiveChild( address _from, uint256 _tokenId, address _childContract, uint256 _childTokenId ) internal virtual { require(_exists(_tokenId), "bundle tokenId does not exist"); uint256 childTokensLength = childTokens[_tokenId][_childContract].length(); if (childTokensLength == 0) { childContracts[_tokenId].add(_childContract); } childTokens[_tokenId][_childContract].add(_childTokenId); childTokenOwner[_childContract][_childTokenId] = _tokenId; emit ReceivedChild(_from, _tokenId, _childContract, _childTokenId); } /** * @dev Returns the owner of a child * @param _childContract The contract address of the child token * @param _childTokenId The tokenId of the child * @return parentTokenOwner The parent address of the parent token and ERC998 magic value * @return parentTokenId The parent tokenId of _childTokenId */ function _ownerOfChild(address _childContract, uint256 _childTokenId) internal view virtual returns (address parentTokenOwner, uint256 parentTokenId) { parentTokenId = childTokenOwner[_childContract][_childTokenId]; require(parentTokenId != 0, "child token does not exist"); return (ownerOf(parentTokenId), parentTokenId); } /** * @dev Convert up to 32 bytes of_data to uint256, owner nft tokenId passed as uint in bytes * @param _data Up to the first 32 bytes contains an integer which is the receiving parent tokenId * @return tokenId the token Id encoded in the data */ function _parseTokenId(bytes memory _data) internal pure virtual returns (uint256 tokenId) { // solhint-disable-next-line no-inline-assembly assembly { tokenId := mload(add(_data, 0x20)) } } /** * @dev Transfers the NFT using method compatible with old token contracts * @param _to address of the receiver of the children * @param _childContract The contract address of the child token * @param _childTokenId The tokenId of the child */ function _oldNFTsTransfer( address _to, address _childContract, uint256 _childTokenId ) internal { // This is here to be compatible with cryptokitties and other old contracts that require being owner and // approved before transferring. // Does not work with current standard which does not allow approving self, so we must let it fail in that case. try IERC721(_childContract).approve(address(this), _childTokenId) { // solhint-disable-previous-line no-empty-blocks } catch { // solhint-disable-previous-line no-empty-blocks } IERC721(_childContract).transferFrom(address(this), _to, _childTokenId); } /** * @notice Validates that the sender is authorized to perform a child transfer * @param _fromTokenId The owning token to transfer from */ function _validateTransferSender(uint256 _fromTokenId) internal virtual { address rootOwner = address(uint160(uint256(rootOwnerOf(_fromTokenId)))); require( rootOwner == msg.sender || getApproved(_fromTokenId) == msg.sender || isApprovedForAll(rootOwner, msg.sender), "transferChild msg.sender not eligible" ); } /** * @dev Triggers stopped state. * * Requirements: * * - Only the owner can call this method. * - The contract must not be paused. */ function pause() external onlyOwner { _pause(); } /** * @dev Returns to normal state. * * Requirements: * * - Only the owner can call this method. * - The contract must be paused. */ function unpause() external onlyOwner { _unpause(); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.17; import "@openzeppelin/contracts/token/ERC721/IERC721.sol"; interface INftfiBundler is IERC721 { function safeMint(address _to) external returns (uint256); function decomposeBundle(uint256 _tokenId, address _receiver) external; }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity 0.8.17; interface IBundleBuilder { /** * @notice data of a erc721 bundle element * * @param tokenContract - address of the token contract * @param id - id of the token * @param safeTransferable - wether the implementing token contract has a safeTransfer function or not */ struct BundleElementERC721 { address tokenContract; uint256[] ids; bool safeTransferable; } /** * @notice used to build a bundle from the BundleElements struct, * returns the id of the created bundle * * @param _bundleElements - the lists of erc721 tokens that are to be bundled */ function buildBundle(BundleElementERC721[] memory _bundleElements) external returns (uint256); /** * @notice Remove all the children from the bundle * @dev This method may run out of gas if the list of children is too big. In that case, children can be removed * individually or in smaller batches. * @param _tokenId the id of the bundle * @param _receiver address of the receiver of the children */ function decomposeBundle(uint256 _tokenId, address _receiver) external; event AddBundleElements(uint256 indexed _tokenId, BundleElementERC721[] _bundleElements); event RemoveBundleElements(uint256 indexed _tokenId, BundleElementERC721[] _bundleElements); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity 0.8.17; interface IPermittedNFTs { function getNFTPermit(address _nftContract) external view returns (bytes32); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity 0.8.17; import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol"; import "@openzeppelin/contracts/token/ERC721/IERC721.sol"; import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol"; import "@openzeppelin/contracts/token/ERC721/utils/ERC721Holder.sol"; import "@openzeppelin/contracts/token/ERC1155/utils/ERC1155Holder.sol"; import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import "@openzeppelin/contracts/utils/Address.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; /** * @title AirdropFlashLoan * @author NFTfi * @dev */ contract AirdropFlashLoan is ERC721Holder, ERC1155Holder, ReentrancyGuard { using Address for address; using SafeERC20 for IERC20; /** * @notice this function initiates a flashloan to pull an airdrop from a tartget contract * * @param _nftContract - contract address of the target nft of the drop * @param _nftId - id of the target nft of the drop * @param _target - address of the airdropping contract * @param _data - function selector to be called on the airdropping contract * @param _nftAirdrop - address of the used claiming nft in the drop * @param _nftAirdropId - id of the used claiming nft in the drop * @param _is1155 - * @param _nftAirdropAmount - amount in case of 1155 * @param _beneficiary - address receiving the drop */ function pullAirdrop( address _nftContract, uint256 _nftId, address _target, bytes calldata _data, address _nftAirdrop, uint256 _nftAirdropId, bool _is1155, uint256 _nftAirdropAmount, address _beneficiary ) external nonReentrant { // assumes that the collateral nft has been transferreded to this contract before calling this function _target.functionCall(_data); // return the collateral IERC721(_nftContract).approve(msg.sender, _nftId); // in case that arbitray function from _target does not send the airdrop to a specified address if (_nftAirdrop != address(0) && _beneficiary != address(0)) { // send the airdrop to the beneficiary if (_is1155) { IERC1155(_nftAirdrop).safeTransferFrom( address(this), _beneficiary, _nftAirdropId, _nftAirdropAmount, "0x" ); } else { IERC721(_nftAirdrop).safeTransferFrom(address(this), _beneficiary, _nftAirdropId); } } } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 _interfaceId) public view virtual override(ERC1155Receiver) returns (bool) { return _interfaceId == type(IERC721Receiver).interfaceId || super.supportsInterface(_interfaceId); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`) * and `uint256` (`UintSet`) are supported. */ library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping(bytes32 => uint256) _indexes; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; if (lastIndex != toDeleteIndex) { bytes32 lastvalue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastvalue; // Update the index for the moved value set._indexes[lastvalue] = valueIndex; // Replace lastvalue's index to valueIndex } // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /** * @dev Returns true if the value is in the set. O(1). */ function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /** * @dev Returns the number of values on the set. O(1). */ function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Set storage set, uint256 index) private view returns (bytes32) { return set._values[index]; } // Bytes32Set struct Bytes32Set { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } /** * @dev Returns the number of values in the set. O(1). */ function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns the number of values in the set. O(1). */ function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values on the set. O(1). */ function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @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 pragma solidity ^0.8.0; /** * @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 * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (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); } function _verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) private pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /** * @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 make 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; } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.17; interface IERC998ERC721TopDown { event ReceivedChild( address indexed _from, uint256 indexed _tokenId, address indexed _childContract, uint256 _childTokenId ); event TransferChild( uint256 indexed tokenId, address indexed _to, address indexed _childContract, uint256 _childTokenId ); function onERC721Received( address _operator, address _from, uint256 _childTokenId, bytes calldata _data ) external returns (bytes4); function transferChild( uint256 _fromTokenId, address _to, address _childContract, uint256 _childTokenId ) external; function safeTransferChild( uint256 _fromTokenId, address _to, address _childContract, uint256 _childTokenId ) external; function safeTransferChild( uint256 _fromTokenId, address _to, address _childContract, uint256 _childTokenId, bytes memory _data ) external; function transferChildToParent( uint256 _fromTokenId, address _toContract, uint256 _toTokenId, address _childContract, uint256 _childTokenId, bytes memory _data ) external; // getChild function enables older contracts like cryptokitties to be transferred into a composable // The _childContract must approve this contract. Then getChild can be called. function getChild( address _from, uint256 _tokenId, address _childContract, uint256 _childTokenId ) external; function rootOwnerOf(uint256 _tokenId) external view returns (bytes32 rootOwner); function rootOwnerOfChild(address _childContract, uint256 _childTokenId) external view returns (bytes32 rootOwner); function ownerOfChild(address _childContract, uint256 _childTokenId) external view returns (bytes32 parentTokenOwner, uint256 parentTokenId); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.17; interface IERC998ERC721TopDownEnumerable { function totalChildContracts(uint256 _tokenId) external view returns (uint256); function childContractByIndex(uint256 _tokenId, uint256 _index) external view returns (address childContract); function totalChildTokens(uint256 _tokenId, address _childContract) external view returns (uint256); function childTokenByIndex( uint256 _tokenId, address _childContract, uint256 _index ) external view returns (uint256 childTokenId); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./IERC721.sol"; import "./IERC721Receiver.sol"; import "./extensions/IERC721Metadata.sol"; import "../../utils/Address.sol"; import "../../utils/Context.sol"; import "../../utils/Strings.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: owner query for nonexistent token"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overriden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "ERC721: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { require(operator != _msgSender(), "ERC721: approve to caller"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _safeTransfer(from, to, tokenId, _data); } /** * @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. * * `_data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory _data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "ERC721: operator query for nonexistent token"); address owner = ERC721.ownerOf(tokenId); return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender)); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory _data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); } /** * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver(to).onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Enumerable is IERC721 { /** * @dev Returns the total amount of tokens stored by the contract. */ function totalSupply() external view returns (uint256); /** * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. */ function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId); /** * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. */ function tokenByIndex(uint256 index) external view returns (uint256); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @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 pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC1155 compliant contract, as defined in the * https://eips.ethereum.org/EIPS/eip-1155[EIP]. * * _Available since v3.1._ */ interface IERC1155 is IERC165 { /** * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`. */ event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value); /** * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all * transfers. */ event TransferBatch( address indexed operator, address indexed from, address indexed to, uint256[] ids, uint256[] values ); /** * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to * `approved`. */ event ApprovalForAll(address indexed account, address indexed operator, bool approved); /** * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI. * * If an {URI} event was emitted for `id`, the standard * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value * returned by {IERC1155MetadataURI-uri}. */ event URI(string value, uint256 indexed id); /** * @dev Returns the amount of tokens of token type `id` owned by `account`. * * Requirements: * * - `account` cannot be the zero address. */ function balanceOf(address account, uint256 id) external view returns (uint256); /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}. * * Requirements: * * - `accounts` and `ids` must have the same length. */ function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids) external view returns (uint256[] memory); /** * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`, * * Emits an {ApprovalForAll} event. * * Requirements: * * - `operator` cannot be the caller. */ function setApprovalForAll(address operator, bool approved) external; /** * @dev Returns true if `operator` is approved to transfer ``account``'s tokens. * * See {setApprovalForAll}. */ function isApprovedForAll(address account, address operator) external view returns (bool); /** * @dev Transfers `amount` tokens of token type `id` from `from` to `to`. * * Emits a {TransferSingle} event. * * Requirements: * * - `to` cannot be the zero address. * - If the caller is not `from`, it must be have been approved to spend ``from``'s tokens via {setApprovalForAll}. * - `from` must have a balance of tokens of type `id` of at least `amount`. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the * acceptance magic value. */ function safeTransferFrom( address from, address to, uint256 id, uint256 amount, bytes calldata data ) external; /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}. * * Emits a {TransferBatch} event. * * Requirements: * * - `ids` and `amounts` must have the same length. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the * acceptance magic value. */ function safeBatchTransferFrom( address from, address to, uint256[] calldata ids, uint256[] calldata amounts, bytes calldata data ) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../IERC721Receiver.sol"; /** * @dev Implementation of the {IERC721Receiver} interface. * * Accepts all token transfers. * Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or {IERC721-setApprovalForAll}. */ contract ERC721Holder is IERC721Receiver { /** * @dev See {IERC721Receiver-onERC721Received}. * * Always returns `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address, address, uint256, bytes memory ) public virtual override returns (bytes4) { return this.onERC721Received.selector; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./ERC1155Receiver.sol"; /** * @dev _Available since v3.1._ */ contract ERC1155Holder is ERC1155Receiver { function onERC1155Received( address, address, uint256, uint256, bytes memory ) public virtual override returns (bytes4) { return this.onERC1155Received.selector; } function onERC1155BatchReceived( address, address, uint256[] memory, uint256[] memory, bytes memory ) public virtual override returns (bytes4) { return this.onERC1155BatchReceived.selector; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../IERC1155Receiver.sol"; import "../../../utils/introspection/ERC165.sol"; /** * @dev _Available since v3.1._ */ abstract contract ERC1155Receiver is ERC165, IERC1155Receiver { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); }
{ "metadata": { "bytecodeHash": "none", "useLiteralContent": true }, "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
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tability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_customBaseURI","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"_interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokenCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_immutableId","type":"uint256"},{"internalType":"address","name":"_to","type":"address"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_immutableId","type":"uint256"},{"internalType":"address","name":"_to","type":"address"}],"name":"withdrawAndDecompose","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
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
-----Decoded View---------------
Arg [0] : _admin (address): 0xDcA17eeDc1aa3dbB14361678566b2dA5A1Bb4C31
Arg [1] : _bundler (address): 0x16c583748faeD1C5A5bcd744b4892ee6B6290094
Arg [2] : _personalBundlerFactory (address): 0xfC0c62626bDa9608D4d63EDd9AB2cF406f751A81
Arg [3] : _name (string): NFTfi Locked Bundle
Arg [4] : _symbol (string): LBNFI
Arg [5] : _customBaseURI (string): https://metadata.nftfi.com/bundles/v1/locked/
-----Encoded View---------------
13 Constructor Arguments found :
Arg [0] : 000000000000000000000000dca17eedc1aa3dbb14361678566b2da5a1bb4c31
Arg [1] : 00000000000000000000000016c583748faed1c5a5bcd744b4892ee6b6290094
Arg [2] : 000000000000000000000000fc0c62626bda9608d4d63edd9ab2cf406f751a81
Arg [3] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000100
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000140
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000013
Arg [7] : 4e46546669204c6f636b65642042756e646c6500000000000000000000000000
Arg [8] : 0000000000000000000000000000000000000000000000000000000000000005
Arg [9] : 4c424e4649000000000000000000000000000000000000000000000000000000
Arg [10] : 000000000000000000000000000000000000000000000000000000000000002d
Arg [11] : 68747470733a2f2f6d657461646174612e6e667466692e636f6d2f62756e646c
Arg [12] : 65732f76312f6c6f636b65642f00000000000000000000000000000000000000
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