{ "language": "Solidity", "sources": { "@openzeppelin/contracts/access/Ownable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n /**\n * @dev Initializes the contract setting the deployer as the initial owner.\n */\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n /**\n * @dev Throws if called by any account other than the owner.\n */\n modifier onlyOwner() {\n _checkOwner();\n _;\n }\n\n /**\n * @dev Returns the address of the current owner.\n */\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n /**\n * @dev Throws if the sender is not the owner.\n */\n function _checkOwner() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n /**\n * @dev Leaves the contract without owner. It will not be possible to call\n * `onlyOwner` functions anymore. Can only be called by the current owner.\n *\n * NOTE: Renouncing ownership will leave the contract without an owner,\n * thereby removing any functionality that is only available to the owner.\n */\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Can only be called by the current owner.\n */\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n _transferOwnership(newOwner);\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Internal function without access restriction.\n */\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n _owner = newOwner;\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n" }, "@openzeppelin/contracts/token/ERC1155/IERC1155.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC1155 compliant contract, as defined in the\n * https://eips.ethereum.org/EIPS/eip-1155[EIP].\n *\n * _Available since v3.1._\n */\ninterface IERC1155 is IERC165 {\n /**\n * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.\n */\n event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);\n\n /**\n * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all\n * transfers.\n */\n event TransferBatch(\n address indexed operator,\n address indexed from,\n address indexed to,\n uint256[] ids,\n uint256[] values\n );\n\n /**\n * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to\n * `approved`.\n */\n event ApprovalForAll(address indexed account, address indexed operator, bool approved);\n\n /**\n * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.\n *\n * If an {URI} event was emitted for `id`, the standard\n * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value\n * returned by {IERC1155MetadataURI-uri}.\n */\n event URI(string value, uint256 indexed id);\n\n /**\n * @dev Returns the amount of tokens of token type `id` owned by `account`.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n */\n function balanceOf(address account, uint256 id) external view returns (uint256);\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.\n *\n * Requirements:\n *\n * - `accounts` and `ids` must have the same length.\n */\n function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)\n external\n view\n returns (uint256[] memory);\n\n /**\n * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,\n *\n * Emits an {ApprovalForAll} event.\n *\n * Requirements:\n *\n * - `operator` cannot be the caller.\n */\n function setApprovalForAll(address operator, bool approved) external;\n\n /**\n * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.\n *\n * See {setApprovalForAll}.\n */\n function isApprovedForAll(address account, address operator) external view returns (bool);\n\n /**\n * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.\n *\n * Emits a {TransferSingle} event.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}.\n * - `from` must have a balance of tokens of type `id` of at least `amount`.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the\n * acceptance magic value.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 id,\n uint256 amount,\n bytes calldata data\n ) external;\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.\n *\n * Emits a {TransferBatch} event.\n *\n * Requirements:\n *\n * - `ids` and `amounts` must have the same length.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the\n * acceptance magic value.\n */\n function safeBatchTransferFrom(\n address from,\n address to,\n uint256[] calldata ids,\n uint256[] calldata amounts,\n bytes calldata data\n ) external;\n}\n" }, "@openzeppelin/contracts/token/ERC20/IERC20.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `from` to `to` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n" }, "@openzeppelin/contracts/token/ERC721/ERC721.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/ERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC721.sol\";\nimport \"./IERC721Receiver.sol\";\nimport \"./extensions/IERC721Metadata.sol\";\nimport \"../../utils/Address.sol\";\nimport \"../../utils/Context.sol\";\nimport \"../../utils/Strings.sol\";\nimport \"../../utils/introspection/ERC165.sol\";\n\n/**\n * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including\n * the Metadata extension, but not including the Enumerable extension, which is available separately as\n * {ERC721Enumerable}.\n */\ncontract ERC721 is Context, ERC165, IERC721, IERC721Metadata {\n using Address for address;\n using Strings for uint256;\n\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Mapping from token ID to owner address\n mapping(uint256 => address) private _owners;\n\n // Mapping owner address to token count\n mapping(address => uint256) private _balances;\n\n // Mapping from token ID to approved address\n mapping(uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to operator approvals\n mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n /**\n * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.\n */\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n _symbol = symbol_;\n }\n\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n return\n interfaceId == type(IERC721).interfaceId ||\n interfaceId == type(IERC721Metadata).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev See {IERC721-balanceOf}.\n */\n function balanceOf(address owner) public view virtual override returns (uint256) {\n require(owner != address(0), \"ERC721: address zero is not a valid owner\");\n return _balances[owner];\n }\n\n /**\n * @dev See {IERC721-ownerOf}.\n */\n function ownerOf(uint256 tokenId) public view virtual override returns (address) {\n address owner = _ownerOf(tokenId);\n require(owner != address(0), \"ERC721: invalid token ID\");\n return owner;\n }\n\n /**\n * @dev See {IERC721Metadata-name}.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev See {IERC721Metadata-symbol}.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev See {IERC721Metadata-tokenURI}.\n */\n function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n _requireMinted(tokenId);\n\n string memory baseURI = _baseURI();\n return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : \"\";\n }\n\n /**\n * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\n * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\n * by default, can be overridden in child contracts.\n */\n function _baseURI() internal view virtual returns (string memory) {\n return \"\";\n }\n\n /**\n * @dev See {IERC721-approve}.\n */\n function approve(address to, uint256 tokenId) public virtual override {\n address owner = ERC721.ownerOf(tokenId);\n require(to != owner, \"ERC721: approval to current owner\");\n\n require(\n _msgSender() == owner || isApprovedForAll(owner, _msgSender()),\n \"ERC721: approve caller is not token owner or approved for all\"\n );\n\n _approve(to, tokenId);\n }\n\n /**\n * @dev See {IERC721-getApproved}.\n */\n function getApproved(uint256 tokenId) public view virtual override returns (address) {\n _requireMinted(tokenId);\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev See {IERC721-setApprovalForAll}.\n */\n function setApprovalForAll(address operator, bool approved) public virtual override {\n _setApprovalForAll(_msgSender(), operator, approved);\n }\n\n /**\n * @dev See {IERC721-isApprovedForAll}.\n */\n function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev See {IERC721-transferFrom}.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n //solhint-disable-next-line max-line-length\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner or approved\");\n\n _transfer(from, to, tokenId);\n }\n\n /**\n * @dev See {IERC721-safeTransferFrom}.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev See {IERC721-safeTransferFrom}.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) public virtual override {\n require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner or approved\");\n _safeTransfer(from, to, tokenId, data);\n }\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * `data` is additional data, it has no specified format and it is sent in call to `to`.\n *\n * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.\n * implement alternative mechanisms to perform token transfer, such as signature-based.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function _safeTransfer(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) internal virtual {\n _transfer(from, to, tokenId);\n require(_checkOnERC721Received(from, to, tokenId, data), \"ERC721: transfer to non ERC721Receiver implementer\");\n }\n\n /**\n * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist\n */\n function _ownerOf(uint256 tokenId) internal view virtual returns (address) {\n return _owners[tokenId];\n }\n\n /**\n * @dev Returns whether `tokenId` exists.\n *\n * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\n *\n * Tokens start existing when they are minted (`_mint`),\n * and stop existing when they are burned (`_burn`).\n */\n function _exists(uint256 tokenId) internal view virtual returns (bool) {\n return _ownerOf(tokenId) != address(0);\n }\n\n /**\n * @dev Returns whether `spender` is allowed to manage `tokenId`.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {\n address owner = ERC721.ownerOf(tokenId);\n return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);\n }\n\n /**\n * @dev Safely mints `tokenId` and transfers it to `to`.\n *\n * Requirements:\n *\n * - `tokenId` must not exist.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function _safeMint(address to, uint256 tokenId) internal virtual {\n _safeMint(to, tokenId, \"\");\n }\n\n /**\n * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is\n * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.\n */\n function _safeMint(\n address to,\n uint256 tokenId,\n bytes memory data\n ) internal virtual {\n _mint(to, tokenId);\n require(\n _checkOnERC721Received(address(0), to, tokenId, data),\n \"ERC721: transfer to non ERC721Receiver implementer\"\n );\n }\n\n /**\n * @dev Mints `tokenId` and transfers it to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible\n *\n * Requirements:\n *\n * - `tokenId` must not exist.\n * - `to` cannot be the zero address.\n *\n * Emits a {Transfer} event.\n */\n function _mint(address to, uint256 tokenId) internal virtual {\n require(to != address(0), \"ERC721: mint to the zero address\");\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n _beforeTokenTransfer(address(0), to, tokenId, 1);\n\n // Check that tokenId was not minted by `_beforeTokenTransfer` hook\n require(!_exists(tokenId), \"ERC721: token already minted\");\n\n unchecked {\n // Will not overflow unless all 2**256 token ids are minted to the same owner.\n // Given that tokens are minted one by one, it is impossible in practice that\n // this ever happens. Might change if we allow batch minting.\n // The ERC fails to describe this case.\n _balances[to] += 1;\n }\n\n _owners[tokenId] = to;\n\n emit Transfer(address(0), to, tokenId);\n\n _afterTokenTransfer(address(0), to, tokenId, 1);\n }\n\n /**\n * @dev Destroys `tokenId`.\n * The approval is cleared when the token is burned.\n * This is an internal function that does not check if the sender is authorized to operate on the token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n *\n * Emits a {Transfer} event.\n */\n function _burn(uint256 tokenId) internal virtual {\n address owner = ERC721.ownerOf(tokenId);\n\n _beforeTokenTransfer(owner, address(0), tokenId, 1);\n\n // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook\n owner = ERC721.ownerOf(tokenId);\n\n // Clear approvals\n delete _tokenApprovals[tokenId];\n\n unchecked {\n // Cannot overflow, as that would require more tokens to be burned/transferred\n // out than the owner initially received through minting and transferring in.\n _balances[owner] -= 1;\n }\n delete _owners[tokenId];\n\n emit Transfer(owner, address(0), tokenId);\n\n _afterTokenTransfer(owner, address(0), tokenId, 1);\n }\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n * As opposed to {transferFrom}, this imposes no restrictions on msg.sender.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n *\n * Emits a {Transfer} event.\n */\n function _transfer(\n address from,\n address to,\n uint256 tokenId\n ) internal virtual {\n require(ERC721.ownerOf(tokenId) == from, \"ERC721: transfer from incorrect owner\");\n require(to != address(0), \"ERC721: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, tokenId, 1);\n\n // Check that tokenId was not transferred by `_beforeTokenTransfer` hook\n require(ERC721.ownerOf(tokenId) == from, \"ERC721: transfer from incorrect owner\");\n\n // Clear approvals from the previous owner\n delete _tokenApprovals[tokenId];\n\n unchecked {\n // `_balances[from]` cannot overflow for the same reason as described in `_burn`:\n // `from`'s balance is the number of token held, which is at least one before the current\n // transfer.\n // `_balances[to]` could overflow in the conditions described in `_mint`. That would require\n // all 2**256 token ids to be minted, which in practice is impossible.\n _balances[from] -= 1;\n _balances[to] += 1;\n }\n _owners[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n\n _afterTokenTransfer(from, to, tokenId, 1);\n }\n\n /**\n * @dev Approve `to` to operate on `tokenId`\n *\n * Emits an {Approval} event.\n */\n function _approve(address to, uint256 tokenId) internal virtual {\n _tokenApprovals[tokenId] = to;\n emit Approval(ERC721.ownerOf(tokenId), to, tokenId);\n }\n\n /**\n * @dev Approve `operator` to operate on all of `owner` tokens\n *\n * Emits an {ApprovalForAll} event.\n */\n function _setApprovalForAll(\n address owner,\n address operator,\n bool approved\n ) internal virtual {\n require(owner != operator, \"ERC721: approve to caller\");\n _operatorApprovals[owner][operator] = approved;\n emit ApprovalForAll(owner, operator, approved);\n }\n\n /**\n * @dev Reverts if the `tokenId` has not been minted yet.\n */\n function _requireMinted(uint256 tokenId) internal view virtual {\n require(_exists(tokenId), \"ERC721: invalid token ID\");\n }\n\n /**\n * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.\n * The call is not executed if the target address is not a contract.\n *\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkOnERC721Received(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) private returns (bool) {\n if (to.isContract()) {\n try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {\n return retval == IERC721Receiver.onERC721Received.selector;\n } catch (bytes memory reason) {\n if (reason.length == 0) {\n revert(\"ERC721: transfer to non ERC721Receiver implementer\");\n } else {\n /// @solidity memory-safe-assembly\n assembly {\n revert(add(32, reason), mload(reason))\n }\n }\n }\n } else {\n return true;\n }\n }\n\n /**\n * @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is\n * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.\n * - When `from` is zero, the tokens will be minted for `to`.\n * - When `to` is zero, ``from``'s tokens will be burned.\n * - `from` and `to` are never both zero.\n * - `batchSize` is non-zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256, /* firstTokenId */\n uint256 batchSize\n ) internal virtual {\n if (batchSize > 1) {\n if (from != address(0)) {\n _balances[from] -= batchSize;\n }\n if (to != address(0)) {\n _balances[to] += batchSize;\n }\n }\n }\n\n /**\n * @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is\n * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.\n * - When `from` is zero, the tokens were minted for `to`.\n * - When `to` is zero, ``from``'s tokens were burned.\n * - `from` and `to` are never both zero.\n * - `batchSize` is non-zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 firstTokenId,\n uint256 batchSize\n ) internal virtual {}\n}\n" }, "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC721.sol\";\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ninterface IERC721Metadata is IERC721 {\n /**\n * @dev Returns the token collection name.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the token collection symbol.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n */\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n" }, "@openzeppelin/contracts/token/ERC721/IERC721.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\n /**\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n */\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n */\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n */\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of tokens in ``owner``'s account.\n */\n function balanceOf(address owner) external view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes calldata data\n ) external;\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Transfers `tokenId` token from `from` to `to`.\n *\n * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721\n * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must\n * understand this adds an external call which potentially creates a reentrancy vulnerability.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) external;\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool _approved) external;\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) external view returns (address operator);\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}\n */\n function isApprovedForAll(address owner, address operator) external view returns (bool);\n}\n" }, "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ninterface IERC721Receiver {\n /**\n * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\n * by `operator` from `from`, this function is called.\n *\n * It must return its Solidity selector to confirm the token transfer.\n * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\n *\n * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.\n */\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n" }, "@openzeppelin/contracts/utils/Address.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check isContract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(isContract(target), \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n" }, "@openzeppelin/contracts/utils/Context.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n" }, "@openzeppelin/contracts/utils/introspection/ERC165.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IERC165).interfaceId;\n }\n}\n" }, "@openzeppelin/contracts/utils/introspection/IERC165.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n" }, "@openzeppelin/contracts/utils/math/Math.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Standard math utilities missing in the Solidity language.\n */\nlibrary Math {\n enum Rounding {\n Down, // Toward negative infinity\n Up, // Toward infinity\n Zero // Toward zero\n }\n\n /**\n * @dev Returns the largest of two numbers.\n */\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n return a > b ? a : b;\n }\n\n /**\n * @dev Returns the smallest of two numbers.\n */\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n return a < b ? a : b;\n }\n\n /**\n * @dev Returns the average of two numbers. The result is rounded towards\n * zero.\n */\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n // (a + b) / 2 can overflow.\n return (a & b) + (a ^ b) / 2;\n }\n\n /**\n * @dev Returns the ceiling of the division of two numbers.\n *\n * This differs from standard division with `/` in that it rounds up instead\n * of rounding down.\n */\n function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n // (a + b - 1) / b can overflow on addition, so we distribute.\n return a == 0 ? 0 : (a - 1) / b + 1;\n }\n\n /**\n * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0\n * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)\n * with further edits by Uniswap Labs also under MIT license.\n */\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator\n ) internal pure returns (uint256 result) {\n unchecked {\n // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use\n // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256\n // variables such that product = prod1 * 2^256 + prod0.\n uint256 prod0; // Least significant 256 bits of the product\n uint256 prod1; // Most significant 256 bits of the product\n assembly {\n let mm := mulmod(x, y, not(0))\n prod0 := mul(x, y)\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n // Handle non-overflow cases, 256 by 256 division.\n if (prod1 == 0) {\n return prod0 / denominator;\n }\n\n // Make sure the result is less than 2^256. Also prevents denominator == 0.\n require(denominator > prod1);\n\n ///////////////////////////////////////////////\n // 512 by 256 division.\n ///////////////////////////////////////////////\n\n // Make division exact by subtracting the remainder from [prod1 prod0].\n uint256 remainder;\n assembly {\n // Compute remainder using mulmod.\n remainder := mulmod(x, y, denominator)\n\n // Subtract 256 bit number from 512 bit number.\n prod1 := sub(prod1, gt(remainder, prod0))\n prod0 := sub(prod0, remainder)\n }\n\n // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.\n // See https://cs.stackexchange.com/q/138556/92363.\n\n // Does not overflow because the denominator cannot be zero at this stage in the function.\n uint256 twos = denominator & (~denominator + 1);\n assembly {\n // Divide denominator by twos.\n denominator := div(denominator, twos)\n\n // Divide [prod1 prod0] by twos.\n prod0 := div(prod0, twos)\n\n // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.\n twos := add(div(sub(0, twos), twos), 1)\n }\n\n // Shift in bits from prod1 into prod0.\n prod0 |= prod1 * twos;\n\n // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such\n // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for\n // four bits. That is, denominator * inv = 1 mod 2^4.\n uint256 inverse = (3 * denominator) ^ 2;\n\n // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works\n // in modular arithmetic, doubling the correct bits in each step.\n inverse *= 2 - denominator * inverse; // inverse mod 2^8\n inverse *= 2 - denominator * inverse; // inverse mod 2^16\n inverse *= 2 - denominator * inverse; // inverse mod 2^32\n inverse *= 2 - denominator * inverse; // inverse mod 2^64\n inverse *= 2 - denominator * inverse; // inverse mod 2^128\n inverse *= 2 - denominator * inverse; // inverse mod 2^256\n\n // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.\n // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is\n // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1\n // is no longer required.\n result = prod0 * inverse;\n return result;\n }\n }\n\n /**\n * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.\n */\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator,\n Rounding rounding\n ) internal pure returns (uint256) {\n uint256 result = mulDiv(x, y, denominator);\n if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {\n result += 1;\n }\n return result;\n }\n\n /**\n * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.\n *\n * Inspired by Henry S. Warren, Jr.'s \"Hacker's Delight\" (Chapter 11).\n */\n function sqrt(uint256 a) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.\n //\n // We know that the \"msb\" (most significant bit) of our target number `a` is a power of 2 such that we have\n // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.\n //\n // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`\n // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`\n // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`\n //\n // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.\n uint256 result = 1 << (log2(a) >> 1);\n\n // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,\n // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at\n // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision\n // into the expected uint128 result.\n unchecked {\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n return min(result, a / result);\n }\n }\n\n /**\n * @notice Calculates sqrt(a), following the selected rounding direction.\n */\n function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = sqrt(a);\n return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 2, rounded down, of a positive value.\n * Returns 0 if given 0.\n */\n function log2(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n result += 128;\n }\n if (value >> 64 > 0) {\n value >>= 64;\n result += 64;\n }\n if (value >> 32 > 0) {\n value >>= 32;\n result += 32;\n }\n if (value >> 16 > 0) {\n value >>= 16;\n result += 16;\n }\n if (value >> 8 > 0) {\n value >>= 8;\n result += 8;\n }\n if (value >> 4 > 0) {\n value >>= 4;\n result += 4;\n }\n if (value >> 2 > 0) {\n value >>= 2;\n result += 2;\n }\n if (value >> 1 > 0) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 2, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log2(value);\n return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 10, rounded down, of a positive value.\n * Returns 0 if given 0.\n */\n function log10(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >= 10**64) {\n value /= 10**64;\n result += 64;\n }\n if (value >= 10**32) {\n value /= 10**32;\n result += 32;\n }\n if (value >= 10**16) {\n value /= 10**16;\n result += 16;\n }\n if (value >= 10**8) {\n value /= 10**8;\n result += 8;\n }\n if (value >= 10**4) {\n value /= 10**4;\n result += 4;\n }\n if (value >= 10**2) {\n value /= 10**2;\n result += 2;\n }\n if (value >= 10**1) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log10(value);\n return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 256, rounded down, of a positive value.\n * Returns 0 if given 0.\n *\n * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.\n */\n function log256(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n result += 16;\n }\n if (value >> 64 > 0) {\n value >>= 64;\n result += 8;\n }\n if (value >> 32 > 0) {\n value >>= 32;\n result += 4;\n }\n if (value >> 16 > 0) {\n value >>= 16;\n result += 2;\n }\n if (value >> 8 > 0) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log256(value);\n return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);\n }\n }\n}\n" }, "@openzeppelin/contracts/utils/Strings.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./math/Math.sol\";\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n bytes16 private constant _SYMBOLS = \"0123456789abcdef\";\n uint8 private constant _ADDRESS_LENGTH = 20;\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n */\n function toString(uint256 value) internal pure returns (string memory) {\n unchecked {\n uint256 length = Math.log10(value) + 1;\n string memory buffer = new string(length);\n uint256 ptr;\n /// @solidity memory-safe-assembly\n assembly {\n ptr := add(buffer, add(32, length))\n }\n while (true) {\n ptr--;\n /// @solidity memory-safe-assembly\n assembly {\n mstore8(ptr, byte(mod(value, 10), _SYMBOLS))\n }\n value /= 10;\n if (value == 0) break;\n }\n return buffer;\n }\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n */\n function toHexString(uint256 value) internal pure returns (string memory) {\n unchecked {\n return toHexString(value, Math.log256(value) + 1);\n }\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n */\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n buffer[0] = \"0\";\n buffer[1] = \"x\";\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _SYMBOLS[value & 0xf];\n value >>= 4;\n }\n require(value == 0, \"Strings: hex length insufficient\");\n return string(buffer);\n }\n\n /**\n * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.\n */\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n }\n}\n" }, "contracts/ethregistrar/BaseRegistrarImplementation.sol": { "content": "pragma solidity >=0.8.4;\n\nimport \"../registry/ENS.sol\";\nimport \"./IBaseRegistrar.sol\";\nimport \"@openzeppelin/contracts/token/ERC721/ERC721.sol\";\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\n\ncontract BaseRegistrarImplementation is ERC721, IBaseRegistrar, Ownable {\n // A map of expiry times\n mapping(uint256 => uint256) expiries;\n // The ENS registry\n ENS public ens;\n // The namehash of the TLD this registrar owns (eg, .eth)\n bytes32 public baseNode;\n // A map of addresses that are authorised to register and renew names.\n mapping(address => bool) public controllers;\n uint256 public constant GRACE_PERIOD = 90 days;\n bytes4 private constant INTERFACE_META_ID =\n bytes4(keccak256(\"supportsInterface(bytes4)\"));\n bytes4 private constant ERC721_ID =\n bytes4(\n keccak256(\"balanceOf(address)\") ^\n keccak256(\"ownerOf(uint256)\") ^\n keccak256(\"approve(address,uint256)\") ^\n keccak256(\"getApproved(uint256)\") ^\n keccak256(\"setApprovalForAll(address,bool)\") ^\n keccak256(\"isApprovedForAll(address,address)\") ^\n keccak256(\"transferFrom(address,address,uint256)\") ^\n keccak256(\"safeTransferFrom(address,address,uint256)\") ^\n keccak256(\"safeTransferFrom(address,address,uint256,bytes)\")\n );\n bytes4 private constant RECLAIM_ID =\n bytes4(keccak256(\"reclaim(uint256,address)\"));\n\n /**\n * v2.1.3 version of _isApprovedOrOwner which calls ownerOf(tokenId) and takes grace period into consideration instead of ERC721.ownerOf(tokenId);\n * https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v2.1.3/contracts/token/ERC721/ERC721.sol#L187\n * @dev Returns whether the given spender can transfer a given token ID\n * @param spender address of the spender to query\n * @param tokenId uint256 ID of the token to be transferred\n * @return bool whether the msg.sender is approved for the given token ID,\n * is an operator of the owner, or is the owner of the token\n */\n function _isApprovedOrOwner(\n address spender,\n uint256 tokenId\n ) internal view override returns (bool) {\n address owner = ownerOf(tokenId);\n return (spender == owner ||\n getApproved(tokenId) == spender ||\n isApprovedForAll(owner, spender));\n }\n\n constructor(ENS _ens, bytes32 _baseNode) ERC721(\"\", \"\") {\n ens = _ens;\n baseNode = _baseNode;\n }\n\n modifier live() {\n require(ens.owner(baseNode) == address(this));\n _;\n }\n\n modifier onlyController() {\n require(controllers[msg.sender]);\n _;\n }\n\n /**\n * @dev Gets the owner of the specified token ID. Names become unowned\n * when their registration expires.\n * @param tokenId uint256 ID of the token to query the owner of\n * @return address currently marked as the owner of the given token ID\n */\n function ownerOf(\n uint256 tokenId\n ) public view override(IERC721, ERC721) returns (address) {\n require(expiries[tokenId] > block.timestamp);\n return super.ownerOf(tokenId);\n }\n\n // Authorises a controller, who can register and renew domains.\n function addController(address controller) external override onlyOwner {\n controllers[controller] = true;\n emit ControllerAdded(controller);\n }\n\n // Revoke controller permission for an address.\n function removeController(address controller) external override onlyOwner {\n controllers[controller] = false;\n emit ControllerRemoved(controller);\n }\n\n // Set the resolver for the TLD this registrar manages.\n function setResolver(address resolver) external override onlyOwner {\n ens.setResolver(baseNode, resolver);\n }\n\n // Returns the expiration timestamp of the specified id.\n function nameExpires(uint256 id) external view override returns (uint256) {\n return expiries[id];\n }\n\n // Returns true iff the specified name is available for registration.\n function available(uint256 id) public view override returns (bool) {\n // Not available if it's registered here or in its grace period.\n return expiries[id] + GRACE_PERIOD < block.timestamp;\n }\n\n /**\n * @dev Register a name.\n * @param id The token ID (keccak256 of the label).\n * @param owner The address that should own the registration.\n * @param duration Duration in seconds for the registration.\n */\n function register(\n uint256 id,\n address owner,\n uint256 duration\n ) external override returns (uint256) {\n return _register(id, owner, duration, true);\n }\n\n /**\n * @dev Register a name, without modifying the registry.\n * @param id The token ID (keccak256 of the label).\n * @param owner The address that should own the registration.\n * @param duration Duration in seconds for the registration.\n */\n function registerOnly(\n uint256 id,\n address owner,\n uint256 duration\n ) external returns (uint256) {\n return _register(id, owner, duration, false);\n }\n\n function _register(\n uint256 id,\n address owner,\n uint256 duration,\n bool updateRegistry\n ) internal live onlyController returns (uint256) {\n require(available(id));\n require(\n block.timestamp + duration + GRACE_PERIOD >\n block.timestamp + GRACE_PERIOD\n ); // Prevent future overflow\n\n expiries[id] = block.timestamp + duration;\n if (_exists(id)) {\n // Name was previously owned, and expired\n _burn(id);\n }\n _mint(owner, id);\n if (updateRegistry) {\n ens.setSubnodeOwner(baseNode, bytes32(id), owner);\n }\n\n emit NameRegistered(id, owner, block.timestamp + duration);\n\n return block.timestamp + duration;\n }\n\n function renew(\n uint256 id,\n uint256 duration\n ) external override live onlyController returns (uint256) {\n require(expiries[id] + GRACE_PERIOD >= block.timestamp); // Name must be registered here or in grace period\n require(\n expiries[id] + duration + GRACE_PERIOD > duration + GRACE_PERIOD\n ); // Prevent future overflow\n\n expiries[id] += duration;\n emit NameRenewed(id, expiries[id]);\n return expiries[id];\n }\n\n /**\n * @dev Reclaim ownership of a name in ENS, if you own it in the registrar.\n */\n function reclaim(uint256 id, address owner) external override live {\n require(_isApprovedOrOwner(msg.sender, id));\n ens.setSubnodeOwner(baseNode, bytes32(id), owner);\n }\n\n function supportsInterface(\n bytes4 interfaceID\n ) public view override(ERC721, IERC165) returns (bool) {\n return\n interfaceID == INTERFACE_META_ID ||\n interfaceID == ERC721_ID ||\n interfaceID == RECLAIM_ID;\n }\n}\n" }, "contracts/ethregistrar/BulkRenewal.sol": { "content": "//SPDX-License-Identifier: MIT\npragma solidity ~0.8.17;\n\nimport \"../registry/ENS.sol\";\nimport \"./ETHRegistrarController.sol\";\nimport \"./IETHRegistrarController.sol\";\nimport \"../resolvers/Resolver.sol\";\nimport \"./IBulkRenewal.sol\";\nimport \"./IPriceOracle.sol\";\n\nimport \"@openzeppelin/contracts/utils/introspection/IERC165.sol\";\n\ncontract BulkRenewal is IBulkRenewal {\n bytes32 private constant ETH_NAMEHASH =\n 0x93cdeb708b7545dc668eb9280176169d1c33cfd8ed6f04690a0bcc88a93fc4ae;\n\n ENS public immutable ens;\n\n constructor(ENS _ens) {\n ens = _ens;\n }\n\n function getController() internal view returns (ETHRegistrarController) {\n Resolver r = Resolver(ens.resolver(ETH_NAMEHASH));\n return\n ETHRegistrarController(\n r.interfaceImplementer(\n ETH_NAMEHASH,\n type(IETHRegistrarController).interfaceId\n )\n );\n }\n\n function rentPrice(\n string[] calldata names,\n uint256 duration\n ) external view override returns (uint256 total) {\n ETHRegistrarController controller = getController();\n uint256 length = names.length;\n for (uint256 i = 0; i < length; ) {\n IPriceOracle.Price memory price = controller.rentPrice(\n names[i],\n duration\n );\n unchecked {\n ++i;\n total += (price.base + price.premium);\n }\n }\n }\n\n function renewAll(\n string[] calldata names,\n uint256 duration\n ) external payable override {\n ETHRegistrarController controller = getController();\n uint256 length = names.length;\n uint256 total;\n for (uint256 i = 0; i < length; ) {\n IPriceOracle.Price memory price = controller.rentPrice(\n names[i],\n duration\n );\n uint256 totalPrice = price.base + price.premium;\n controller.renew{value: totalPrice}(names[i], duration);\n unchecked {\n ++i;\n total += totalPrice;\n }\n }\n // Send any excess funds back\n payable(msg.sender).transfer(address(this).balance);\n }\n\n function supportsInterface(\n bytes4 interfaceID\n ) external pure returns (bool) {\n return\n interfaceID == type(IERC165).interfaceId ||\n interfaceID == type(IBulkRenewal).interfaceId;\n }\n}\n" }, "contracts/ethregistrar/ETHRegistrarController.sol": { "content": "//SPDX-License-Identifier: MIT\npragma solidity ~0.8.17;\n\nimport {BaseRegistrarImplementation} from \"./BaseRegistrarImplementation.sol\";\nimport {StringUtils} from \"./StringUtils.sol\";\nimport {Resolver} from \"../resolvers/Resolver.sol\";\nimport {ENS} from \"../registry/ENS.sol\";\nimport {ReverseRegistrar} from \"../reverseRegistrar/ReverseRegistrar.sol\";\nimport {ReverseClaimer} from \"../reverseRegistrar/ReverseClaimer.sol\";\nimport {IETHRegistrarController, IPriceOracle} from \"./IETHRegistrarController.sol\";\n\nimport {Ownable} from \"@openzeppelin/contracts/access/Ownable.sol\";\nimport {IERC165} from \"@openzeppelin/contracts/utils/introspection/IERC165.sol\";\nimport {Address} from \"@openzeppelin/contracts/utils/Address.sol\";\nimport {INameWrapper} from \"../wrapper/INameWrapper.sol\";\nimport {ERC20Recoverable} from \"../utils/ERC20Recoverable.sol\";\n\nerror CommitmentTooNew(bytes32 commitment);\nerror CommitmentTooOld(bytes32 commitment);\nerror NameNotAvailable(string name);\nerror DurationTooShort(uint256 duration);\nerror ResolverRequiredWhenDataSupplied();\nerror UnexpiredCommitmentExists(bytes32 commitment);\nerror InsufficientValue();\nerror Unauthorised(bytes32 node);\nerror MaxCommitmentAgeTooLow();\nerror MaxCommitmentAgeTooHigh();\n\n/**\n * @dev A registrar controller for registering and renewing names at fixed cost.\n */\ncontract ETHRegistrarController is\n Ownable,\n IETHRegistrarController,\n IERC165,\n ERC20Recoverable,\n ReverseClaimer\n{\n using StringUtils for *;\n using Address for address;\n\n uint256 public constant MIN_REGISTRATION_DURATION = 28 days;\n bytes32 private constant ETH_NODE =\n 0x93cdeb708b7545dc668eb9280176169d1c33cfd8ed6f04690a0bcc88a93fc4ae;\n uint64 private constant MAX_EXPIRY = type(uint64).max;\n BaseRegistrarImplementation immutable base;\n IPriceOracle public immutable prices;\n uint256 public immutable minCommitmentAge;\n uint256 public immutable maxCommitmentAge;\n ReverseRegistrar public immutable reverseRegistrar;\n INameWrapper public immutable nameWrapper;\n\n mapping(bytes32 => uint256) public commitments;\n\n event NameRegistered(\n string name,\n bytes32 indexed label,\n address indexed owner,\n uint256 baseCost,\n uint256 premium,\n uint256 expires\n );\n event NameRenewed(\n string name,\n bytes32 indexed label,\n uint256 cost,\n uint256 expires\n );\n\n constructor(\n BaseRegistrarImplementation _base,\n IPriceOracle _prices,\n uint256 _minCommitmentAge,\n uint256 _maxCommitmentAge,\n ReverseRegistrar _reverseRegistrar,\n INameWrapper _nameWrapper,\n ENS _ens\n ) ReverseClaimer(_ens, msg.sender) {\n if (_maxCommitmentAge <= _minCommitmentAge) {\n revert MaxCommitmentAgeTooLow();\n }\n\n if (_maxCommitmentAge > block.timestamp) {\n revert MaxCommitmentAgeTooHigh();\n }\n\n base = _base;\n prices = _prices;\n minCommitmentAge = _minCommitmentAge;\n maxCommitmentAge = _maxCommitmentAge;\n reverseRegistrar = _reverseRegistrar;\n nameWrapper = _nameWrapper;\n }\n\n function rentPrice(\n string memory name,\n uint256 duration\n ) public view override returns (IPriceOracle.Price memory price) {\n bytes32 label = keccak256(bytes(name));\n price = prices.price(name, base.nameExpires(uint256(label)), duration);\n }\n\n function valid(string memory name) public pure returns (bool) {\n return name.strlen() >= 3;\n }\n\n function available(string memory name) public view override returns (bool) {\n bytes32 label = keccak256(bytes(name));\n return valid(name) && base.available(uint256(label));\n }\n\n function makeCommitment(\n string memory name,\n address owner,\n uint256 duration,\n bytes32 secret,\n address resolver,\n bytes[] calldata data,\n bool reverseRecord,\n uint16 ownerControlledFuses\n ) public pure override returns (bytes32) {\n bytes32 label = keccak256(bytes(name));\n if (data.length > 0 && resolver == address(0)) {\n revert ResolverRequiredWhenDataSupplied();\n }\n return\n keccak256(\n abi.encode(\n label,\n owner,\n duration,\n secret,\n resolver,\n data,\n reverseRecord,\n ownerControlledFuses\n )\n );\n }\n\n function commit(bytes32 commitment) public override {\n if (commitments[commitment] + maxCommitmentAge >= block.timestamp) {\n revert UnexpiredCommitmentExists(commitment);\n }\n commitments[commitment] = block.timestamp;\n }\n\n function register(\n string calldata name,\n address owner,\n uint256 duration,\n bytes32 secret,\n address resolver,\n bytes[] calldata data,\n bool reverseRecord,\n uint16 ownerControlledFuses\n ) public payable override {\n IPriceOracle.Price memory price = rentPrice(name, duration);\n if (msg.value < price.base + price.premium) {\n revert InsufficientValue();\n }\n\n _consumeCommitment(\n name,\n duration,\n makeCommitment(\n name,\n owner,\n duration,\n secret,\n resolver,\n data,\n reverseRecord,\n ownerControlledFuses\n )\n );\n\n uint256 expires = nameWrapper.registerAndWrapETH2LD(\n name,\n owner,\n duration,\n resolver,\n ownerControlledFuses\n );\n\n if (data.length > 0) {\n _setRecords(resolver, keccak256(bytes(name)), data);\n }\n\n if (reverseRecord) {\n _setReverseRecord(name, resolver, msg.sender);\n }\n\n emit NameRegistered(\n name,\n keccak256(bytes(name)),\n owner,\n price.base,\n price.premium,\n expires\n );\n\n if (msg.value > (price.base + price.premium)) {\n payable(msg.sender).transfer(\n msg.value - (price.base + price.premium)\n );\n }\n }\n\n function renew(\n string calldata name,\n uint256 duration\n ) external payable override {\n bytes32 labelhash = keccak256(bytes(name));\n uint256 tokenId = uint256(labelhash);\n IPriceOracle.Price memory price = rentPrice(name, duration);\n if (msg.value < price.base) {\n revert InsufficientValue();\n }\n uint256 expires = nameWrapper.renew(tokenId, duration);\n\n if (msg.value > price.base) {\n payable(msg.sender).transfer(msg.value - price.base);\n }\n\n emit NameRenewed(name, labelhash, msg.value, expires);\n }\n\n function withdraw() public {\n payable(owner()).transfer(address(this).balance);\n }\n\n function supportsInterface(\n bytes4 interfaceID\n ) external pure returns (bool) {\n return\n interfaceID == type(IERC165).interfaceId ||\n interfaceID == type(IETHRegistrarController).interfaceId;\n }\n\n /* Internal functions */\n\n function _consumeCommitment(\n string memory name,\n uint256 duration,\n bytes32 commitment\n ) internal {\n // Require an old enough commitment.\n if (commitments[commitment] + minCommitmentAge > block.timestamp) {\n revert CommitmentTooNew(commitment);\n }\n\n // If the commitment is too old, or the name is registered, stop\n if (commitments[commitment] + maxCommitmentAge <= block.timestamp) {\n revert CommitmentTooOld(commitment);\n }\n if (!available(name)) {\n revert NameNotAvailable(name);\n }\n\n delete (commitments[commitment]);\n\n if (duration < MIN_REGISTRATION_DURATION) {\n revert DurationTooShort(duration);\n }\n }\n\n function _setRecords(\n address resolverAddress,\n bytes32 label,\n bytes[] calldata data\n ) internal {\n // use hardcoded .eth namehash\n bytes32 nodehash = keccak256(abi.encodePacked(ETH_NODE, label));\n Resolver resolver = Resolver(resolverAddress);\n resolver.multicallWithNodeCheck(nodehash, data);\n }\n\n function _setReverseRecord(\n string memory name,\n address resolver,\n address owner\n ) internal {\n reverseRegistrar.setNameForAddr(\n msg.sender,\n owner,\n resolver,\n string.concat(name, \".eth\")\n );\n }\n}\n" }, "contracts/ethregistrar/IBaseRegistrar.sol": { "content": "import \"../registry/ENS.sol\";\nimport \"./IBaseRegistrar.sol\";\nimport \"@openzeppelin/contracts/token/ERC721/IERC721.sol\";\n\ninterface IBaseRegistrar is IERC721 {\n event ControllerAdded(address indexed controller);\n event ControllerRemoved(address indexed controller);\n event NameMigrated(\n uint256 indexed id,\n address indexed owner,\n uint256 expires\n );\n event NameRegistered(\n uint256 indexed id,\n address indexed owner,\n uint256 expires\n );\n event NameRenewed(uint256 indexed id, uint256 expires);\n\n // Authorises a controller, who can register and renew domains.\n function addController(address controller) external;\n\n // Revoke controller permission for an address.\n function removeController(address controller) external;\n\n // Set the resolver for the TLD this registrar manages.\n function setResolver(address resolver) external;\n\n // Returns the expiration timestamp of the specified label hash.\n function nameExpires(uint256 id) external view returns (uint256);\n\n // Returns true iff the specified name is available for registration.\n function available(uint256 id) external view returns (bool);\n\n /**\n * @dev Register a name.\n */\n function register(\n uint256 id,\n address owner,\n uint256 duration\n ) external returns (uint256);\n\n function renew(uint256 id, uint256 duration) external returns (uint256);\n\n /**\n * @dev Reclaim ownership of a name in ENS, if you own it in the registrar.\n */\n function reclaim(uint256 id, address owner) external;\n}\n" }, "contracts/ethregistrar/IBulkRenewal.sol": { "content": "interface IBulkRenewal {\n function rentPrice(\n string[] calldata names,\n uint256 duration\n ) external view returns (uint256 total);\n\n function renewAll(\n string[] calldata names,\n uint256 duration\n ) external payable;\n}\n" }, "contracts/ethregistrar/IETHRegistrarController.sol": { "content": "//SPDX-License-Identifier: MIT\npragma solidity ~0.8.17;\n\nimport \"./IPriceOracle.sol\";\n\ninterface IETHRegistrarController {\n function rentPrice(\n string memory,\n uint256\n ) external view returns (IPriceOracle.Price memory);\n\n function available(string memory) external returns (bool);\n\n function makeCommitment(\n string memory,\n address,\n uint256,\n bytes32,\n address,\n bytes[] calldata,\n bool,\n uint16\n ) external pure returns (bytes32);\n\n function commit(bytes32) external;\n\n function register(\n string calldata,\n address,\n uint256,\n bytes32,\n address,\n bytes[] calldata,\n bool,\n uint16\n ) external payable;\n\n function renew(string calldata, uint256) external payable;\n}\n" }, "contracts/ethregistrar/IPriceOracle.sol": { "content": "//SPDX-License-Identifier: MIT\npragma solidity >=0.8.17 <0.9.0;\n\ninterface IPriceOracle {\n struct Price {\n uint256 base;\n uint256 premium;\n }\n\n /**\n * @dev Returns the price to register or renew a name.\n * @param name The name being registered or renewed.\n * @param expires When the name presently expires (0 if this is a new registration).\n * @param duration How long the name is being registered or extended for, in seconds.\n * @return base premium tuple of base price + premium price\n */\n function price(\n string calldata name,\n uint256 expires,\n uint256 duration\n ) external view returns (Price calldata);\n}\n" }, "contracts/ethregistrar/StringUtils.sol": { "content": "pragma solidity >=0.8.4;\n\nlibrary StringUtils {\n /**\n * @dev Returns the length of a given string\n *\n * @param s The string to measure the length of\n * @return The length of the input string\n */\n function strlen(string memory s) internal pure returns (uint256) {\n uint256 len;\n uint256 i = 0;\n uint256 bytelength = bytes(s).length;\n for (len = 0; i < bytelength; len++) {\n bytes1 b = bytes(s)[i];\n if (b < 0x80) {\n i += 1;\n } else if (b < 0xE0) {\n i += 2;\n } else if (b < 0xF0) {\n i += 3;\n } else if (b < 0xF8) {\n i += 4;\n } else if (b < 0xFC) {\n i += 5;\n } else {\n i += 6;\n }\n }\n return len;\n }\n}\n" }, "contracts/registry/ENS.sol": { "content": "pragma solidity >=0.8.4;\n\ninterface ENS {\n // Logged when the owner of a node assigns a new owner to a subnode.\n event NewOwner(bytes32 indexed node, bytes32 indexed label, address owner);\n\n // Logged when the owner of a node transfers ownership to a new account.\n event Transfer(bytes32 indexed node, address owner);\n\n // Logged when the resolver for a node changes.\n event NewResolver(bytes32 indexed node, address resolver);\n\n // Logged when the TTL of a node changes\n event NewTTL(bytes32 indexed node, uint64 ttl);\n\n // Logged when an operator is added or removed.\n event ApprovalForAll(\n address indexed owner,\n address indexed operator,\n bool approved\n );\n\n function setRecord(\n bytes32 node,\n address owner,\n address resolver,\n uint64 ttl\n ) external;\n\n function setSubnodeRecord(\n bytes32 node,\n bytes32 label,\n address owner,\n address resolver,\n uint64 ttl\n ) external;\n\n function setSubnodeOwner(\n bytes32 node,\n bytes32 label,\n address owner\n ) external returns (bytes32);\n\n function setResolver(bytes32 node, address resolver) external;\n\n function setOwner(bytes32 node, address owner) external;\n\n function setTTL(bytes32 node, uint64 ttl) external;\n\n function setApprovalForAll(address operator, bool approved) external;\n\n function owner(bytes32 node) external view returns (address);\n\n function resolver(bytes32 node) external view returns (address);\n\n function ttl(bytes32 node) external view returns (uint64);\n\n function recordExists(bytes32 node) external view returns (bool);\n\n function isApprovedForAll(\n address owner,\n address operator\n ) external view returns (bool);\n}\n" }, "contracts/resolvers/profiles/IABIResolver.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.4;\n\ninterface IABIResolver {\n event ABIChanged(bytes32 indexed node, uint256 indexed contentType);\n\n /**\n * Returns the ABI associated with an ENS node.\n * Defined in EIP205.\n * @param node The ENS node to query\n * @param contentTypes A bitwise OR of the ABI formats accepted by the caller.\n * @return contentType The content type of the return value\n * @return data The ABI data\n */\n function ABI(\n bytes32 node,\n uint256 contentTypes\n ) external view returns (uint256, bytes memory);\n}\n" }, "contracts/resolvers/profiles/IAddressResolver.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.4;\n\n/**\n * Interface for the new (multicoin) addr function.\n */\ninterface IAddressResolver {\n event AddressChanged(\n bytes32 indexed node,\n uint256 coinType,\n bytes newAddress\n );\n\n function addr(\n bytes32 node,\n uint256 coinType\n ) external view returns (bytes memory);\n}\n" }, "contracts/resolvers/profiles/IAddrResolver.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.4;\n\n/**\n * Interface for the legacy (ETH-only) addr function.\n */\ninterface IAddrResolver {\n event AddrChanged(bytes32 indexed node, address a);\n\n /**\n * Returns the address associated with an ENS node.\n * @param node The ENS node to query.\n * @return The associated address.\n */\n function addr(bytes32 node) external view returns (address payable);\n}\n" }, "contracts/resolvers/profiles/IContentHashResolver.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.4;\n\ninterface IContentHashResolver {\n event ContenthashChanged(bytes32 indexed node, bytes hash);\n\n /**\n * Returns the contenthash associated with an ENS node.\n * @param node The ENS node to query.\n * @return The associated contenthash.\n */\n function contenthash(bytes32 node) external view returns (bytes memory);\n}\n" }, "contracts/resolvers/profiles/IDNSRecordResolver.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.4;\n\ninterface IDNSRecordResolver {\n // DNSRecordChanged is emitted whenever a given node/name/resource's RRSET is updated.\n event DNSRecordChanged(\n bytes32 indexed node,\n bytes name,\n uint16 resource,\n bytes record\n );\n // DNSRecordDeleted is emitted whenever a given node/name/resource's RRSET is deleted.\n event DNSRecordDeleted(bytes32 indexed node, bytes name, uint16 resource);\n\n /**\n * Obtain a DNS record.\n * @param node the namehash of the node for which to fetch the record\n * @param name the keccak-256 hash of the fully-qualified name for which to fetch the record\n * @param resource the ID of the resource as per https://en.wikipedia.org/wiki/List_of_DNS_record_types\n * @return the DNS record in wire format if present, otherwise empty\n */\n function dnsRecord(\n bytes32 node,\n bytes32 name,\n uint16 resource\n ) external view returns (bytes memory);\n}\n" }, "contracts/resolvers/profiles/IDNSZoneResolver.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.4;\n\ninterface IDNSZoneResolver {\n // DNSZonehashChanged is emitted whenever a given node's zone hash is updated.\n event DNSZonehashChanged(\n bytes32 indexed node,\n bytes lastzonehash,\n bytes zonehash\n );\n\n /**\n * zonehash obtains the hash for the zone.\n * @param node The ENS node to query.\n * @return The associated contenthash.\n */\n function zonehash(bytes32 node) external view returns (bytes memory);\n}\n" }, "contracts/resolvers/profiles/IExtendedResolver.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.4;\n\ninterface IExtendedResolver {\n function resolve(\n bytes memory name,\n bytes memory data\n ) external view returns (bytes memory);\n}\n" }, "contracts/resolvers/profiles/IInterfaceResolver.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.4;\n\ninterface IInterfaceResolver {\n event InterfaceChanged(\n bytes32 indexed node,\n bytes4 indexed interfaceID,\n address implementer\n );\n\n /**\n * Returns the address of a contract that implements the specified interface for this name.\n * If an implementer has not been set for this interfaceID and name, the resolver will query\n * the contract at `addr()`. If `addr()` is set, a contract exists at that address, and that\n * contract implements EIP165 and returns `true` for the specified interfaceID, its address\n * will be returned.\n * @param node The ENS node to query.\n * @param interfaceID The EIP 165 interface ID to check for.\n * @return The address that implements this interface, or 0 if the interface is unsupported.\n */\n function interfaceImplementer(\n bytes32 node,\n bytes4 interfaceID\n ) external view returns (address);\n}\n" }, "contracts/resolvers/profiles/INameResolver.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.4;\n\ninterface INameResolver {\n event NameChanged(bytes32 indexed node, string name);\n\n /**\n * Returns the name associated with an ENS node, for reverse records.\n * Defined in EIP181.\n * @param node The ENS node to query.\n * @return The associated name.\n */\n function name(bytes32 node) external view returns (string memory);\n}\n" }, "contracts/resolvers/profiles/IPubkeyResolver.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.4;\n\ninterface IPubkeyResolver {\n event PubkeyChanged(bytes32 indexed node, bytes32 x, bytes32 y);\n\n /**\n * Returns the SECP256k1 public key associated with an ENS node.\n * Defined in EIP 619.\n * @param node The ENS node to query\n * @return x The X coordinate of the curve point for the public key.\n * @return y The Y coordinate of the curve point for the public key.\n */\n function pubkey(bytes32 node) external view returns (bytes32 x, bytes32 y);\n}\n" }, "contracts/resolvers/profiles/ITextResolver.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.4;\n\ninterface ITextResolver {\n event TextChanged(\n bytes32 indexed node,\n string indexed indexedKey,\n string key,\n string value\n );\n\n /**\n * Returns the text data associated with an ENS node and key.\n * @param node The ENS node to query.\n * @param key The text data key to query.\n * @return The associated text data.\n */\n function text(\n bytes32 node,\n string calldata key\n ) external view returns (string memory);\n}\n" }, "contracts/resolvers/Resolver.sol": { "content": "//SPDX-License-Identifier: MIT\npragma solidity >=0.8.4;\n\nimport \"@openzeppelin/contracts/utils/introspection/IERC165.sol\";\nimport \"./profiles/IABIResolver.sol\";\nimport \"./profiles/IAddressResolver.sol\";\nimport \"./profiles/IAddrResolver.sol\";\nimport \"./profiles/IContentHashResolver.sol\";\nimport \"./profiles/IDNSRecordResolver.sol\";\nimport \"./profiles/IDNSZoneResolver.sol\";\nimport \"./profiles/IInterfaceResolver.sol\";\nimport \"./profiles/INameResolver.sol\";\nimport \"./profiles/IPubkeyResolver.sol\";\nimport \"./profiles/ITextResolver.sol\";\nimport \"./profiles/IExtendedResolver.sol\";\n\n/**\n * A generic resolver interface which includes all the functions including the ones deprecated\n */\ninterface Resolver is\n IERC165,\n IABIResolver,\n IAddressResolver,\n IAddrResolver,\n IContentHashResolver,\n IDNSRecordResolver,\n IDNSZoneResolver,\n IInterfaceResolver,\n INameResolver,\n IPubkeyResolver,\n ITextResolver,\n IExtendedResolver\n{\n /* Deprecated events */\n event ContentChanged(bytes32 indexed node, bytes32 hash);\n\n function setApprovalForAll(address, bool) external;\n\n function approve(bytes32 node, address delegate, bool approved) external;\n\n function isApprovedForAll(address account, address operator) external;\n\n function isApprovedFor(\n address owner,\n bytes32 node,\n address delegate\n ) external;\n\n function setABI(\n bytes32 node,\n uint256 contentType,\n bytes calldata data\n ) external;\n\n function setAddr(bytes32 node, address addr) external;\n\n function setAddr(bytes32 node, uint256 coinType, bytes calldata a) external;\n\n function setContenthash(bytes32 node, bytes calldata hash) external;\n\n function setDnsrr(bytes32 node, bytes calldata data) external;\n\n function setName(bytes32 node, string calldata _name) external;\n\n function setPubkey(bytes32 node, bytes32 x, bytes32 y) external;\n\n function setText(\n bytes32 node,\n string calldata key,\n string calldata value\n ) external;\n\n function setInterface(\n bytes32 node,\n bytes4 interfaceID,\n address implementer\n ) external;\n\n function multicall(\n bytes[] calldata data\n ) external returns (bytes[] memory results);\n\n function multicallWithNodeCheck(\n bytes32 nodehash,\n bytes[] calldata data\n ) external returns (bytes[] memory results);\n\n /* Deprecated functions */\n function content(bytes32 node) external view returns (bytes32);\n\n function multihash(bytes32 node) external view returns (bytes memory);\n\n function setContent(bytes32 node, bytes32 hash) external;\n\n function setMultihash(bytes32 node, bytes calldata hash) external;\n}\n" }, "contracts/reverseRegistrar/IReverseRegistrar.sol": { "content": "pragma solidity >=0.8.4;\n\ninterface IReverseRegistrar {\n function setDefaultResolver(address resolver) external;\n\n function claim(address owner) external returns (bytes32);\n\n function claimForAddr(\n address addr,\n address owner,\n address resolver\n ) external returns (bytes32);\n\n function claimWithResolver(\n address owner,\n address resolver\n ) external returns (bytes32);\n\n function setName(string memory name) external returns (bytes32);\n\n function setNameForAddr(\n address addr,\n address owner,\n address resolver,\n string memory name\n ) external returns (bytes32);\n\n function node(address addr) external pure returns (bytes32);\n}\n" }, "contracts/reverseRegistrar/ReverseClaimer.sol": { "content": "//SPDX-License-Identifier: MIT\npragma solidity >=0.8.17 <0.9.0;\n\nimport {ENS} from \"../registry/ENS.sol\";\nimport {IReverseRegistrar} from \"../reverseRegistrar/IReverseRegistrar.sol\";\n\ncontract ReverseClaimer {\n bytes32 constant ADDR_REVERSE_NODE =\n 0x91d1777781884d03a6757a803996e38de2a42967fb37eeaca72729271025a9e2;\n\n constructor(ENS ens, address claimant) {\n IReverseRegistrar reverseRegistrar = IReverseRegistrar(\n ens.owner(ADDR_REVERSE_NODE)\n );\n reverseRegistrar.claim(claimant);\n }\n}\n" }, "contracts/reverseRegistrar/ReverseRegistrar.sol": { "content": "pragma solidity >=0.8.4;\n\nimport \"../registry/ENS.sol\";\nimport \"./IReverseRegistrar.sol\";\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\nimport \"../root/Controllable.sol\";\n\nabstract contract NameResolver {\n function setName(bytes32 node, string memory name) public virtual;\n}\n\nbytes32 constant lookup = 0x3031323334353637383961626364656600000000000000000000000000000000;\n\nbytes32 constant ADDR_REVERSE_NODE = 0x91d1777781884d03a6757a803996e38de2a42967fb37eeaca72729271025a9e2;\n\n// namehash('addr.reverse')\n\ncontract ReverseRegistrar is Ownable, Controllable, IReverseRegistrar {\n ENS public immutable ens;\n NameResolver public defaultResolver;\n\n event ReverseClaimed(address indexed addr, bytes32 indexed node);\n event DefaultResolverChanged(NameResolver indexed resolver);\n\n /**\n * @dev Constructor\n * @param ensAddr The address of the ENS registry.\n */\n constructor(ENS ensAddr) {\n ens = ensAddr;\n\n // Assign ownership of the reverse record to our deployer\n ReverseRegistrar oldRegistrar = ReverseRegistrar(\n ensAddr.owner(ADDR_REVERSE_NODE)\n );\n if (address(oldRegistrar) != address(0x0)) {\n oldRegistrar.claim(msg.sender);\n }\n }\n\n modifier authorised(address addr) {\n require(\n addr == msg.sender ||\n controllers[msg.sender] ||\n ens.isApprovedForAll(addr, msg.sender) ||\n ownsContract(addr),\n \"ReverseRegistrar: Caller is not a controller or authorised by address or the address itself\"\n );\n _;\n }\n\n function setDefaultResolver(address resolver) public override onlyOwner {\n require(\n address(resolver) != address(0),\n \"ReverseRegistrar: Resolver address must not be 0\"\n );\n defaultResolver = NameResolver(resolver);\n emit DefaultResolverChanged(NameResolver(resolver));\n }\n\n /**\n * @dev Transfers ownership of the reverse ENS record associated with the\n * calling account.\n * @param owner The address to set as the owner of the reverse record in ENS.\n * @return The ENS node hash of the reverse record.\n */\n function claim(address owner) public override returns (bytes32) {\n return claimForAddr(msg.sender, owner, address(defaultResolver));\n }\n\n /**\n * @dev Transfers ownership of the reverse ENS record associated with the\n * calling account.\n * @param addr The reverse record to set\n * @param owner The address to set as the owner of the reverse record in ENS.\n * @param resolver The resolver of the reverse node\n * @return The ENS node hash of the reverse record.\n */\n function claimForAddr(\n address addr,\n address owner,\n address resolver\n ) public override authorised(addr) returns (bytes32) {\n bytes32 labelHash = sha3HexAddress(addr);\n bytes32 reverseNode = keccak256(\n abi.encodePacked(ADDR_REVERSE_NODE, labelHash)\n );\n emit ReverseClaimed(addr, reverseNode);\n ens.setSubnodeRecord(ADDR_REVERSE_NODE, labelHash, owner, resolver, 0);\n return reverseNode;\n }\n\n /**\n * @dev Transfers ownership of the reverse ENS record associated with the\n * calling account.\n * @param owner The address to set as the owner of the reverse record in ENS.\n * @param resolver The address of the resolver to set; 0 to leave unchanged.\n * @return The ENS node hash of the reverse record.\n */\n function claimWithResolver(\n address owner,\n address resolver\n ) public override returns (bytes32) {\n return claimForAddr(msg.sender, owner, resolver);\n }\n\n /**\n * @dev Sets the `name()` record for the reverse ENS record associated with\n * the calling account. First updates the resolver to the default reverse\n * resolver if necessary.\n * @param name The name to set for this address.\n * @return The ENS node hash of the reverse record.\n */\n function setName(string memory name) public override returns (bytes32) {\n return\n setNameForAddr(\n msg.sender,\n msg.sender,\n address(defaultResolver),\n name\n );\n }\n\n /**\n * @dev Sets the `name()` record for the reverse ENS record associated with\n * the account provided. Updates the resolver to a designated resolver\n * Only callable by controllers and authorised users\n * @param addr The reverse record to set\n * @param owner The owner of the reverse node\n * @param resolver The resolver of the reverse node\n * @param name The name to set for this address.\n * @return The ENS node hash of the reverse record.\n */\n function setNameForAddr(\n address addr,\n address owner,\n address resolver,\n string memory name\n ) public override returns (bytes32) {\n bytes32 node = claimForAddr(addr, owner, resolver);\n NameResolver(resolver).setName(node, name);\n return node;\n }\n\n /**\n * @dev Returns the node hash for a given account's reverse records.\n * @param addr The address to hash\n * @return The ENS node hash.\n */\n function node(address addr) public pure override returns (bytes32) {\n return\n keccak256(\n abi.encodePacked(ADDR_REVERSE_NODE, sha3HexAddress(addr))\n );\n }\n\n /**\n * @dev An optimised function to compute the sha3 of the lower-case\n * hexadecimal representation of an Ethereum address.\n * @param addr The address to hash\n * @return ret The SHA3 hash of the lower-case hexadecimal encoding of the\n * input address.\n */\n function sha3HexAddress(address addr) private pure returns (bytes32 ret) {\n assembly {\n for {\n let i := 40\n } gt(i, 0) {\n\n } {\n i := sub(i, 1)\n mstore8(i, byte(and(addr, 0xf), lookup))\n addr := div(addr, 0x10)\n i := sub(i, 1)\n mstore8(i, byte(and(addr, 0xf), lookup))\n addr := div(addr, 0x10)\n }\n\n ret := keccak256(0, 40)\n }\n }\n\n function ownsContract(address addr) internal view returns (bool) {\n try Ownable(addr).owner() returns (address owner) {\n return owner == msg.sender;\n } catch {\n return false;\n }\n }\n}\n" }, "contracts/root/Controllable.sol": { "content": "pragma solidity ^0.8.4;\n\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\n\ncontract Controllable is Ownable {\n mapping(address => bool) public controllers;\n\n event ControllerChanged(address indexed controller, bool enabled);\n\n modifier onlyController() {\n require(\n controllers[msg.sender],\n \"Controllable: Caller is not a controller\"\n );\n _;\n }\n\n function setController(address controller, bool enabled) public onlyOwner {\n controllers[controller] = enabled;\n emit ControllerChanged(controller, enabled);\n }\n}\n" }, "contracts/utils/ERC20Recoverable.sol": { "content": "//SPDX-License-Identifier: MIT\npragma solidity >=0.8.17 <0.9.0;\n\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\n\n/**\n @notice Contract is used to recover ERC20 tokens sent to the contract by mistake.\n */\n\ncontract ERC20Recoverable is Ownable {\n /**\n @notice Recover ERC20 tokens sent to the contract by mistake.\n @dev The contract is Ownable and only the owner can call the recover function.\n @param _to The address to send the tokens to.\n@param _token The address of the ERC20 token to recover\n @param _amount The amount of tokens to recover.\n */\n function recoverFunds(\n address _token,\n address _to,\n uint256 _amount\n ) external onlyOwner {\n IERC20(_token).transfer(_to, _amount);\n }\n}\n" }, "contracts/utils/HexUtils.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.4;\n\nlibrary HexUtils {\n /**\n * @dev Attempts to parse bytes32 from a hex string\n * @param str The string to parse\n * @param idx The offset to start parsing at\n * @param lastIdx The (exclusive) last index in `str` to consider. Use `str.length` to scan the whole string.\n */\n function hexStringToBytes32(\n bytes memory str,\n uint256 idx,\n uint256 lastIdx\n ) internal pure returns (bytes32 r, bool valid) {\n valid = true;\n assembly {\n // check that the index to read to is not past the end of the string\n if gt(lastIdx, mload(str)) {\n revert(0, 0)\n }\n\n function getHex(c) -> ascii {\n // chars 48-57: 0-9\n if and(gt(c, 47), lt(c, 58)) {\n ascii := sub(c, 48)\n leave\n }\n // chars 65-70: A-F\n if and(gt(c, 64), lt(c, 71)) {\n ascii := add(sub(c, 65), 10)\n leave\n }\n // chars 97-102: a-f\n if and(gt(c, 96), lt(c, 103)) {\n ascii := add(sub(c, 97), 10)\n leave\n }\n // invalid char\n ascii := 0xff\n }\n\n let ptr := add(str, 32)\n for {\n let i := idx\n } lt(i, lastIdx) {\n i := add(i, 2)\n } {\n let byte1 := getHex(byte(0, mload(add(ptr, i))))\n let byte2 := getHex(byte(0, mload(add(ptr, add(i, 1)))))\n // if either byte is invalid, set invalid and break loop\n if or(eq(byte1, 0xff), eq(byte2, 0xff)) {\n valid := false\n break\n }\n let combined := or(shl(4, byte1), byte2)\n r := or(shl(8, r), combined)\n }\n }\n }\n\n /**\n * @dev Attempts to parse an address from a hex string\n * @param str The string to parse\n * @param idx The offset to start parsing at\n * @param lastIdx The (exclusive) last index in `str` to consider. Use `str.length` to scan the whole string.\n */\n function hexToAddress(\n bytes memory str,\n uint256 idx,\n uint256 lastIdx\n ) internal pure returns (address, bool) {\n if (lastIdx - idx < 40) return (address(0x0), false);\n (bytes32 r, bool valid) = hexStringToBytes32(str, idx, lastIdx);\n return (address(uint160(uint256(r))), valid);\n }\n}\n" }, "contracts/utils/LowLevelCallUtils.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.13;\n\nimport {Address} from \"@openzeppelin/contracts/utils/Address.sol\";\n\nlibrary LowLevelCallUtils {\n using Address for address;\n\n /**\n * @dev Makes a static call to the specified `target` with `data`. Return data can be fetched with\n * `returnDataSize` and `readReturnData`.\n * @param target The address to staticcall.\n * @param data The data to pass to the call.\n * @return success True if the call succeeded, or false if it reverts.\n */\n function functionStaticCall(\n address target,\n bytes memory data\n ) internal view returns (bool success) {\n require(\n target.isContract(),\n \"LowLevelCallUtils: static call to non-contract\"\n );\n assembly {\n success := staticcall(\n gas(),\n target,\n add(data, 32),\n mload(data),\n 0,\n 0\n )\n }\n }\n\n /**\n * @dev Returns the size of the return data of the most recent external call.\n */\n function returnDataSize() internal pure returns (uint256 len) {\n assembly {\n len := returndatasize()\n }\n }\n\n /**\n * @dev Reads return data from the most recent external call.\n * @param offset Offset into the return data.\n * @param length Number of bytes to return.\n */\n function readReturnData(\n uint256 offset,\n uint256 length\n ) internal pure returns (bytes memory data) {\n data = new bytes(length);\n assembly {\n returndatacopy(add(data, 32), offset, length)\n }\n }\n\n /**\n * @dev Reverts with the return data from the most recent external call.\n */\n function propagateRevert() internal pure {\n assembly {\n returndatacopy(0, 0, returndatasize())\n revert(0, returndatasize())\n }\n }\n}\n" }, "contracts/utils/NameEncoder.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {BytesUtils} from \"../wrapper/BytesUtils.sol\";\n\nlibrary NameEncoder {\n using BytesUtils for bytes;\n\n function dnsEncodeName(\n string memory name\n ) internal pure returns (bytes memory dnsName, bytes32 node) {\n uint8 labelLength = 0;\n bytes memory bytesName = bytes(name);\n uint256 length = bytesName.length;\n dnsName = new bytes(length + 2);\n node = 0;\n if (length == 0) {\n dnsName[0] = 0;\n return (dnsName, node);\n }\n\n // use unchecked to save gas since we check for an underflow\n // and we check for the length before the loop\n unchecked {\n for (uint256 i = length - 1; i >= 0; i--) {\n if (bytesName[i] == \".\") {\n dnsName[i + 1] = bytes1(labelLength);\n node = keccak256(\n abi.encodePacked(\n node,\n bytesName.keccak(i + 1, labelLength)\n )\n );\n labelLength = 0;\n } else {\n labelLength += 1;\n dnsName[i + 1] = bytesName[i];\n }\n if (i == 0) {\n break;\n }\n }\n }\n\n node = keccak256(\n abi.encodePacked(node, bytesName.keccak(0, labelLength))\n );\n\n dnsName[0] = bytes1(labelLength);\n return (dnsName, node);\n }\n}\n" }, "contracts/utils/UniversalResolver.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.17 <0.9.0;\n\nimport {ERC165} from \"@openzeppelin/contracts/utils/introspection/ERC165.sol\";\nimport {Ownable} from \"@openzeppelin/contracts/access/Ownable.sol\";\nimport {Address} from \"@openzeppelin/contracts/utils/Address.sol\";\nimport {LowLevelCallUtils} from \"./LowLevelCallUtils.sol\";\nimport {ENS} from \"../registry/ENS.sol\";\nimport {IExtendedResolver} from \"../resolvers/profiles/IExtendedResolver.sol\";\nimport {Resolver, INameResolver, IAddrResolver} from \"../resolvers/Resolver.sol\";\nimport {NameEncoder} from \"./NameEncoder.sol\";\nimport {BytesUtils} from \"../wrapper/BytesUtils.sol\";\nimport {HexUtils} from \"./HexUtils.sol\";\n\nerror OffchainLookup(\n address sender,\n string[] urls,\n bytes callData,\n bytes4 callbackFunction,\n bytes extraData\n);\n\nstruct MulticallData {\n bytes name;\n bytes[] data;\n string[] gateways;\n bytes4 callbackFunction;\n address resolver;\n bytes metaData;\n bool[] failures;\n}\n\nstruct OffchainLookupCallData {\n address sender;\n string[] urls;\n bytes callData;\n}\n\nstruct OffchainLookupExtraData {\n bytes4 callbackFunction;\n bytes data;\n}\n\ninterface BatchGateway {\n function query(\n OffchainLookupCallData[] memory data\n ) external returns (bool[] memory failures, bytes[] memory responses);\n}\n\n/**\n * The Universal Resolver is a contract that handles the work of resolving a name entirely onchain,\n * making it possible to make a single smart contract call to resolve an ENS name.\n */\ncontract UniversalResolver is ERC165, Ownable {\n using Address for address;\n using NameEncoder for string;\n using BytesUtils for bytes;\n using HexUtils for bytes;\n\n string[] public batchGatewayURLs;\n ENS public immutable registry;\n\n constructor(address _registry, string[] memory _urls) {\n registry = ENS(_registry);\n batchGatewayURLs = _urls;\n }\n\n function setGatewayURLs(string[] memory _urls) public onlyOwner {\n batchGatewayURLs = _urls;\n }\n\n /**\n * @dev Performs ENS name resolution for the supplied name and resolution data.\n * @param name The name to resolve, in normalised and DNS-encoded form.\n * @param data The resolution data, as specified in ENSIP-10.\n * @return The result of resolving the name.\n */\n function resolve(\n bytes calldata name,\n bytes memory data\n ) external view returns (bytes memory, address) {\n return\n _resolveSingle(\n name,\n data,\n batchGatewayURLs,\n this.resolveSingleCallback.selector,\n \"\"\n );\n }\n\n function resolve(\n bytes calldata name,\n bytes[] memory data\n ) external view returns (bytes[] memory, address) {\n return resolve(name, data, batchGatewayURLs);\n }\n\n function resolve(\n bytes calldata name,\n bytes memory data,\n string[] memory gateways\n ) external view returns (bytes memory, address) {\n return\n _resolveSingle(\n name,\n data,\n gateways,\n this.resolveSingleCallback.selector,\n \"\"\n );\n }\n\n function resolve(\n bytes calldata name,\n bytes[] memory data,\n string[] memory gateways\n ) public view returns (bytes[] memory, address) {\n return\n _resolve(name, data, gateways, this.resolveCallback.selector, \"\");\n }\n\n function _resolveSingle(\n bytes calldata name,\n bytes memory data,\n string[] memory gateways,\n bytes4 callbackFunction,\n bytes memory metaData\n ) public view returns (bytes memory, address) {\n bytes[] memory dataArr = new bytes[](1);\n dataArr[0] = data;\n (bytes[] memory results, address resolver) = _resolve(\n name,\n dataArr,\n gateways,\n callbackFunction,\n metaData\n );\n return (results[0], resolver);\n }\n\n function _resolve(\n bytes calldata name,\n bytes[] memory data,\n string[] memory gateways,\n bytes4 callbackFunction,\n bytes memory metaData\n ) internal view returns (bytes[] memory results, address resolverAddress) {\n (Resolver resolver, ) = findResolver(name);\n resolverAddress = address(resolver);\n if (resolverAddress == address(0)) {\n return (results, address(0));\n }\n\n results = _multicall(\n MulticallData(\n name,\n data,\n gateways,\n callbackFunction,\n resolverAddress,\n metaData,\n new bool[](data.length)\n )\n );\n }\n\n function reverse(\n bytes calldata reverseName\n ) external view returns (string memory, address, address, address) {\n return reverse(reverseName, batchGatewayURLs);\n }\n\n /**\n * @dev Performs ENS name reverse resolution for the supplied reverse name.\n * @param reverseName The reverse name to resolve, in normalised and DNS-encoded form. e.g. b6E040C9ECAaE172a89bD561c5F73e1C48d28cd9.addr.reverse\n * @return The resolved name, the resolved address, the reverse resolver address, and the resolver address.\n */\n function reverse(\n bytes calldata reverseName,\n string[] memory gateways\n ) public view returns (string memory, address, address, address) {\n bytes memory encodedCall = abi.encodeCall(\n INameResolver.name,\n reverseName.namehash(0)\n );\n (\n bytes memory resolvedReverseData,\n address reverseResolverAddress\n ) = _resolveSingle(\n reverseName,\n encodedCall,\n gateways,\n this.reverseCallback.selector,\n \"\"\n );\n\n return\n getForwardDataFromReverse(\n resolvedReverseData,\n reverseResolverAddress,\n gateways\n );\n }\n\n function getForwardDataFromReverse(\n bytes memory resolvedReverseData,\n address reverseResolverAddress,\n string[] memory gateways\n ) internal view returns (string memory, address, address, address) {\n string memory resolvedName = abi.decode(resolvedReverseData, (string));\n\n (bytes memory encodedName, bytes32 namehash) = resolvedName\n .dnsEncodeName();\n\n bytes memory encodedCall = abi.encodeCall(IAddrResolver.addr, namehash);\n bytes memory metaData = abi.encode(\n resolvedName,\n reverseResolverAddress\n );\n (bytes memory resolvedData, address resolverAddress) = this\n ._resolveSingle(\n encodedName,\n encodedCall,\n gateways,\n this.reverseCallback.selector,\n metaData\n );\n\n address resolvedAddress = abi.decode(resolvedData, (address));\n\n return (\n resolvedName,\n resolvedAddress,\n reverseResolverAddress,\n resolverAddress\n );\n }\n\n function resolveSingleCallback(\n bytes calldata response,\n bytes calldata extraData\n ) external view returns (bytes memory, address) {\n (bytes[] memory results, address resolver, , ) = _resolveCallback(\n response,\n extraData,\n this.resolveSingleCallback.selector\n );\n return (results[0], resolver);\n }\n\n function resolveCallback(\n bytes calldata response,\n bytes calldata extraData\n ) external view returns (bytes[] memory, address) {\n (bytes[] memory results, address resolver, , ) = _resolveCallback(\n response,\n extraData,\n this.resolveCallback.selector\n );\n return (results, resolver);\n }\n\n function reverseCallback(\n bytes calldata response,\n bytes calldata extraData\n ) external view returns (string memory, address, address, address) {\n (\n bytes[] memory resolvedData,\n address resolverAddress,\n string[] memory gateways,\n bytes memory metaData\n ) = _resolveCallback(\n response,\n extraData,\n this.reverseCallback.selector\n );\n\n if (metaData.length > 0) {\n (string memory resolvedName, address reverseResolverAddress) = abi\n .decode(metaData, (string, address));\n address resolvedAddress = abi.decode(resolvedData[0], (address));\n return (\n resolvedName,\n resolvedAddress,\n reverseResolverAddress,\n resolverAddress\n );\n }\n\n return\n getForwardDataFromReverse(\n resolvedData[0],\n resolverAddress,\n gateways\n );\n }\n\n function supportsInterface(\n bytes4 interfaceId\n ) public view virtual override returns (bool) {\n return\n interfaceId == type(IExtendedResolver).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n function _resolveCallback(\n bytes calldata response,\n bytes calldata extraData,\n bytes4 callbackFunction\n )\n internal\n view\n returns (bytes[] memory, address, string[] memory, bytes memory)\n {\n MulticallData memory multicallData;\n multicallData.callbackFunction = callbackFunction;\n (bool[] memory failures, bytes[] memory responses) = abi.decode(\n response,\n (bool[], bytes[])\n );\n OffchainLookupExtraData[] memory extraDatas;\n (\n multicallData.resolver,\n multicallData.gateways,\n multicallData.metaData,\n extraDatas\n ) = abi.decode(\n extraData,\n (address, string[], bytes, OffchainLookupExtraData[])\n );\n require(responses.length <= extraDatas.length);\n multicallData.data = new bytes[](extraDatas.length);\n multicallData.failures = new bool[](extraDatas.length);\n uint256 offchainCount = 0;\n for (uint256 i = 0; i < extraDatas.length; i++) {\n if (extraDatas[i].callbackFunction == bytes4(0)) {\n // This call did not require an offchain lookup; use the previous input data.\n multicallData.data[i] = extraDatas[i].data;\n } else {\n if (failures[offchainCount]) {\n multicallData.failures[i] = true;\n multicallData.data[i] = responses[offchainCount];\n } else {\n multicallData.data[i] = abi.encodeWithSelector(\n extraDatas[i].callbackFunction,\n responses[offchainCount],\n extraDatas[i].data\n );\n }\n offchainCount = offchainCount + 1;\n }\n }\n\n return (\n _multicall(multicallData),\n multicallData.resolver,\n multicallData.gateways,\n multicallData.metaData\n );\n }\n\n /**\n * @dev Makes a call to `target` with `data`. If the call reverts with an `OffchainLookup` error, wraps\n * the error with the data necessary to continue the request where it left off.\n * @param target The address to call.\n * @param data The data to call `target` with.\n * @return offchain Whether the call reverted with an `OffchainLookup` error.\n * @return returnData If `target` did not revert, contains the return data from the call to `target`. Otherwise, contains a `OffchainLookupCallData` struct.\n * @return extraData If `target` did not revert, is empty. Otherwise, contains a `OffchainLookupExtraData` struct.\n * @return result Whether the call succeeded.\n */\n function callWithOffchainLookupPropagation(\n address target,\n bytes memory data\n )\n internal\n view\n returns (\n bool offchain,\n bytes memory returnData,\n OffchainLookupExtraData memory extraData,\n bool result\n )\n {\n result = LowLevelCallUtils.functionStaticCall(address(target), data);\n uint256 size = LowLevelCallUtils.returnDataSize();\n\n if (result) {\n return (\n false,\n LowLevelCallUtils.readReturnData(0, size),\n extraData,\n true\n );\n }\n\n // Failure\n if (size >= 4) {\n bytes memory errorId = LowLevelCallUtils.readReturnData(0, 4);\n // Offchain lookup. Decode the revert message and create our own that nests it.\n bytes memory revertData = LowLevelCallUtils.readReturnData(\n 4,\n size - 4\n );\n if (bytes4(errorId) == OffchainLookup.selector) {\n (\n address wrappedSender,\n string[] memory wrappedUrls,\n bytes memory wrappedCallData,\n bytes4 wrappedCallbackFunction,\n bytes memory wrappedExtraData\n ) = abi.decode(\n revertData,\n (address, string[], bytes, bytes4, bytes)\n );\n if (wrappedSender == target) {\n returnData = abi.encode(\n OffchainLookupCallData(\n wrappedSender,\n wrappedUrls,\n wrappedCallData\n )\n );\n extraData = OffchainLookupExtraData(\n wrappedCallbackFunction,\n wrappedExtraData\n );\n return (true, returnData, extraData, false);\n }\n } else {\n returnData = revertData;\n return (false, returnData, extraData, false);\n }\n }\n }\n\n /**\n * @dev Finds a resolver by recursively querying the registry, starting at the longest name and progressively\n * removing labels until it finds a result.\n * @param name The name to resolve, in DNS-encoded and normalised form.\n * @return The Resolver responsible for this name, and the namehash of the full name.\n */\n function findResolver(\n bytes calldata name\n ) public view returns (Resolver, bytes32) {\n (address resolver, bytes32 labelhash) = findResolver(name, 0);\n return (Resolver(resolver), labelhash);\n }\n\n function findResolver(\n bytes calldata name,\n uint256 offset\n ) internal view returns (address, bytes32) {\n uint256 labelLength = uint256(uint8(name[offset]));\n if (labelLength == 0) {\n return (address(0), bytes32(0));\n }\n uint256 nextLabel = offset + labelLength + 1;\n bytes32 labelHash;\n if (\n labelLength == 66 &&\n // 0x5b == '['\n name[offset + 1] == 0x5b &&\n // 0x5d == ']'\n name[nextLabel - 1] == 0x5d\n ) {\n // Encrypted label\n (labelHash, ) = bytes(name[offset + 2:nextLabel - 1])\n .hexStringToBytes32(0, 64);\n } else {\n labelHash = keccak256(name[offset + 1:nextLabel]);\n }\n (address parentresolver, bytes32 parentnode) = findResolver(\n name,\n nextLabel\n );\n bytes32 node = keccak256(abi.encodePacked(parentnode, labelHash));\n address resolver = registry.resolver(node);\n if (resolver != address(0)) {\n return (resolver, node);\n }\n return (parentresolver, node);\n }\n\n function _hasExtendedResolver(\n address resolver\n ) internal view returns (bool) {\n try\n Resolver(resolver).supportsInterface(\n type(IExtendedResolver).interfaceId\n )\n returns (bool supported) {\n return supported;\n } catch {\n return false;\n }\n }\n\n function _multicall(\n MulticallData memory multicallData\n ) internal view returns (bytes[] memory results) {\n uint256 length = multicallData.data.length;\n uint256 offchainCount = 0;\n OffchainLookupCallData[]\n memory callDatas = new OffchainLookupCallData[](length);\n OffchainLookupExtraData[]\n memory extraDatas = new OffchainLookupExtraData[](length);\n results = new bytes[](length);\n bool isCallback = multicallData.name.length == 0;\n bool hasExtendedResolver = _hasExtendedResolver(multicallData.resolver);\n\n for (uint256 i = 0; i < length; i++) {\n bytes memory item = multicallData.data[i];\n bool failure = multicallData.failures[i];\n if (failure) {\n results[i] = item;\n continue;\n }\n if (!isCallback && hasExtendedResolver) {\n item = abi.encodeCall(\n IExtendedResolver.resolve,\n (multicallData.name, item)\n );\n }\n (\n bool offchain,\n bytes memory returnData,\n OffchainLookupExtraData memory extraData,\n bool success\n ) = callWithOffchainLookupPropagation(multicallData.resolver, item);\n\n if (offchain) {\n callDatas[offchainCount] = abi.decode(\n returnData,\n (OffchainLookupCallData)\n );\n extraDatas[i] = extraData;\n offchainCount += 1;\n continue;\n }\n\n if (success && hasExtendedResolver) {\n // if this is a successful resolve() call, unwrap the result\n returnData = abi.decode(returnData, (bytes));\n }\n results[i] = returnData;\n extraDatas[i].data = multicallData.data[i];\n }\n\n if (offchainCount == 0) {\n return results;\n }\n\n // Trim callDatas if offchain data exists\n assembly {\n mstore(callDatas, offchainCount)\n }\n\n revert OffchainLookup(\n address(this),\n multicallData.gateways,\n abi.encodeWithSelector(BatchGateway.query.selector, callDatas),\n multicallData.callbackFunction,\n abi.encode(\n multicallData.resolver,\n multicallData.gateways,\n multicallData.metaData,\n extraDatas\n )\n );\n }\n}\n" }, "contracts/wrapper/BytesUtils.sol": { "content": "//SPDX-License-Identifier: MIT\npragma solidity ~0.8.17;\n\nlibrary BytesUtils {\n /*\n * @dev Returns the keccak-256 hash of a byte range.\n * @param self The byte string to hash.\n * @param offset The position to start hashing at.\n * @param len The number of bytes to hash.\n * @return The hash of the byte range.\n */\n function keccak(\n bytes memory self,\n uint256 offset,\n uint256 len\n ) internal pure returns (bytes32 ret) {\n require(offset + len <= self.length);\n assembly {\n ret := keccak256(add(add(self, 32), offset), len)\n }\n }\n\n /**\n * @dev Returns the ENS namehash of a DNS-encoded name.\n * @param self The DNS-encoded name to hash.\n * @param offset The offset at which to start hashing.\n * @return The namehash of the name.\n */\n function namehash(\n bytes memory self,\n uint256 offset\n ) internal pure returns (bytes32) {\n (bytes32 labelhash, uint256 newOffset) = readLabel(self, offset);\n if (labelhash == bytes32(0)) {\n require(offset == self.length - 1, \"namehash: Junk at end of name\");\n return bytes32(0);\n }\n return\n keccak256(abi.encodePacked(namehash(self, newOffset), labelhash));\n }\n\n /**\n * @dev Returns the keccak-256 hash of a DNS-encoded label, and the offset to the start of the next label.\n * @param self The byte string to read a label from.\n * @param idx The index to read a label at.\n * @return labelhash The hash of the label at the specified index, or 0 if it is the last label.\n * @return newIdx The index of the start of the next label.\n */\n function readLabel(\n bytes memory self,\n uint256 idx\n ) internal pure returns (bytes32 labelhash, uint256 newIdx) {\n require(idx < self.length, \"readLabel: Index out of bounds\");\n uint256 len = uint256(uint8(self[idx]));\n if (len > 0) {\n labelhash = keccak(self, idx + 1, len);\n } else {\n labelhash = bytes32(0);\n }\n newIdx = idx + len + 1;\n }\n}\n" }, "contracts/wrapper/IMetadataService.sol": { "content": "//SPDX-License-Identifier: MIT\npragma solidity ~0.8.17;\n\ninterface IMetadataService {\n function uri(uint256) external view returns (string memory);\n}\n" }, "contracts/wrapper/INameWrapper.sol": { "content": "//SPDX-License-Identifier: MIT\npragma solidity ~0.8.17;\n\nimport \"../registry/ENS.sol\";\nimport \"../ethregistrar/IBaseRegistrar.sol\";\nimport \"@openzeppelin/contracts/token/ERC1155/IERC1155.sol\";\nimport \"./IMetadataService.sol\";\nimport \"./INameWrapperUpgrade.sol\";\n\nuint32 constant CANNOT_UNWRAP = 1;\nuint32 constant CANNOT_BURN_FUSES = 2;\nuint32 constant CANNOT_TRANSFER = 4;\nuint32 constant CANNOT_SET_RESOLVER = 8;\nuint32 constant CANNOT_SET_TTL = 16;\nuint32 constant CANNOT_CREATE_SUBDOMAIN = 32;\nuint32 constant CANNOT_APPROVE = 64;\n//uint16 reserved for parent controlled fuses from bit 17 to bit 32\nuint32 constant PARENT_CANNOT_CONTROL = 1 << 16;\nuint32 constant IS_DOT_ETH = 1 << 17;\nuint32 constant CAN_EXTEND_EXPIRY = 1 << 18;\nuint32 constant CAN_DO_EVERYTHING = 0;\nuint32 constant PARENT_CONTROLLED_FUSES = 0xFFFF0000;\n// all fuses apart from IS_DOT_ETH\nuint32 constant USER_SETTABLE_FUSES = 0xFFFDFFFF;\n\ninterface INameWrapper is IERC1155 {\n event NameWrapped(\n bytes32 indexed node,\n bytes name,\n address owner,\n uint32 fuses,\n uint64 expiry\n );\n\n event NameUnwrapped(bytes32 indexed node, address owner);\n\n event FusesSet(bytes32 indexed node, uint32 fuses);\n event ExpiryExtended(bytes32 indexed node, uint64 expiry);\n\n function ens() external view returns (ENS);\n\n function registrar() external view returns (IBaseRegistrar);\n\n function metadataService() external view returns (IMetadataService);\n\n function names(bytes32) external view returns (bytes memory);\n\n function name() external view returns (string memory);\n\n function upgradeContract() external view returns (INameWrapperUpgrade);\n\n function supportsInterface(bytes4 interfaceID) external view returns (bool);\n\n function wrap(\n bytes calldata name,\n address wrappedOwner,\n address resolver\n ) external;\n\n function wrapETH2LD(\n string calldata label,\n address wrappedOwner,\n uint16 ownerControlledFuses,\n address resolver\n ) external returns (uint64 expires);\n\n function registerAndWrapETH2LD(\n string calldata label,\n address wrappedOwner,\n uint256 duration,\n address resolver,\n uint16 ownerControlledFuses\n ) external returns (uint256 registrarExpiry);\n\n function renew(\n uint256 labelHash,\n uint256 duration\n ) external returns (uint256 expires);\n\n function unwrap(bytes32 node, bytes32 label, address owner) external;\n\n function unwrapETH2LD(\n bytes32 label,\n address newRegistrant,\n address newController\n ) external;\n\n function upgrade(bytes calldata name, bytes calldata extraData) external;\n\n function setFuses(\n bytes32 node,\n uint16 ownerControlledFuses\n ) external returns (uint32 newFuses);\n\n function setChildFuses(\n bytes32 parentNode,\n bytes32 labelhash,\n uint32 fuses,\n uint64 expiry\n ) external;\n\n function setSubnodeRecord(\n bytes32 node,\n string calldata label,\n address owner,\n address resolver,\n uint64 ttl,\n uint32 fuses,\n uint64 expiry\n ) external returns (bytes32);\n\n function setRecord(\n bytes32 node,\n address owner,\n address resolver,\n uint64 ttl\n ) external;\n\n function setSubnodeOwner(\n bytes32 node,\n string calldata label,\n address newOwner,\n uint32 fuses,\n uint64 expiry\n ) external returns (bytes32);\n\n function extendExpiry(\n bytes32 node,\n bytes32 labelhash,\n uint64 expiry\n ) external returns (uint64);\n\n function canModifyName(\n bytes32 node,\n address addr\n ) external view returns (bool);\n\n function setResolver(bytes32 node, address resolver) external;\n\n function setTTL(bytes32 node, uint64 ttl) external;\n\n function ownerOf(uint256 id) external view returns (address owner);\n\n function approve(address to, uint256 tokenId) external;\n\n function getApproved(uint256 tokenId) external view returns (address);\n\n function getData(\n uint256 id\n ) external view returns (address, uint32, uint64);\n\n function setMetadataService(IMetadataService _metadataService) external;\n\n function uri(uint256 tokenId) external view returns (string memory);\n\n function setUpgradeContract(INameWrapperUpgrade _upgradeAddress) external;\n\n function allFusesBurned(\n bytes32 node,\n uint32 fuseMask\n ) external view returns (bool);\n\n function isWrapped(bytes32) external view returns (bool);\n\n function isWrapped(bytes32, bytes32) external view returns (bool);\n}\n" }, "contracts/wrapper/INameWrapperUpgrade.sol": { "content": "//SPDX-License-Identifier: MIT\npragma solidity ~0.8.17;\n\ninterface INameWrapperUpgrade {\n function wrapFromUpgrade(\n bytes calldata name,\n address wrappedOwner,\n uint32 fuses,\n uint64 expiry,\n address approved,\n bytes calldata extraData\n ) external;\n}\n" } }, "settings": { "optimizer": { "enabled": true, "runs": 1300 }, "outputSelection": { "*": { "*": [ "abi", "evm.bytecode", "evm.deployedBytecode", "evm.methodIdentifiers", "metadata", "devdoc", "userdoc", "storageLayout", "evm.gasEstimates" ], "": [ "ast" ] } }, "metadata": { "useLiteralContent": true } } }