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Private Name Tags
ContractCreator
TokenTracker
Latest 25 from a total of 502 transactions
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Safe Transfer Fr... | 20556548 | 127 days ago | IN | 0 ETH | 0.00015964 | ||||
Safe Transfer Fr... | 20556544 | 127 days ago | IN | 0 ETH | 0.00021409 | ||||
Set Approval For... | 19635254 | 256 days ago | IN | 0 ETH | 0.00068682 | ||||
Set Approval For... | 19439679 | 283 days ago | IN | 0 ETH | 0.00169855 | ||||
Set Approval For... | 18542722 | 409 days ago | IN | 0 ETH | 0.00202284 | ||||
Transfer Node Ow... | 18369245 | 433 days ago | IN | 0 ETH | 0.00020577 | ||||
Set Approval For... | 18300894 | 443 days ago | IN | 0 ETH | 0.0001404 | ||||
Safe Transfer Fr... | 18214739 | 455 days ago | IN | 0 ETH | 0.00082201 | ||||
Transfer Node Ow... | 18211550 | 455 days ago | IN | 0 ETH | 0.00023682 | ||||
Safe Transfer Fr... | 17741565 | 521 days ago | IN | 0 ETH | 0.00135959 | ||||
Safe Transfer Fr... | 17741563 | 521 days ago | IN | 0 ETH | 0.00153015 | ||||
Safe Transfer Fr... | 17741561 | 521 days ago | IN | 0 ETH | 0.00152752 | ||||
Safe Transfer Fr... | 17741557 | 521 days ago | IN | 0 ETH | 0.00146497 | ||||
Safe Transfer Fr... | 17741555 | 521 days ago | IN | 0 ETH | 0.00146429 | ||||
Safe Transfer Fr... | 17741551 | 521 days ago | IN | 0 ETH | 0.00130636 | ||||
Safe Transfer Fr... | 17741547 | 521 days ago | IN | 0 ETH | 0.00129971 | ||||
Safe Transfer Fr... | 17741544 | 521 days ago | IN | 0 ETH | 0.00176102 | ||||
Set Approval For... | 17741461 | 521 days ago | IN | 0 ETH | 0.00127401 | ||||
Set Approval For... | 17695572 | 528 days ago | IN | 0 ETH | 0.00037068 | ||||
Safe Transfer Fr... | 17682010 | 529 days ago | IN | 0 ETH | 0.00092341 | ||||
Transfer From | 17680473 | 530 days ago | IN | 0 ETH | 0.00096909 | ||||
Transfer From | 17673187 | 531 days ago | IN | 0 ETH | 0.0013851 | ||||
Transfer From | 17673184 | 531 days ago | IN | 0 ETH | 0.00152806 | ||||
Transfer From | 17673181 | 531 days ago | IN | 0 ETH | 0.00168223 | ||||
Transfer From | 17673179 | 531 days ago | IN | 0 ETH | 0.00135755 |
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Contract Name:
UniversalRegistrar
Compiler Version
v0.8.4+commit.c7e474f2
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@ensdomains/ens-contracts/contracts/registry/ENS.sol"; import "@ensdomains/ens-contracts/contracts/registry/ENSRegistry.sol"; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "./IUniversalRegistrar.sol"; import "./RegistrarAccess.sol"; contract UniversalRegistrar is ERC721, RegistrarAccess, IUniversalRegistrar, Ownable { // A map of expiry times mapping(uint256 => uint) expiries; ENS public ens; // ERC721 Metadata URI string private metadataUri; // A map of addresses that are authorised to register and renew // names for the given top level node. mapping(bytes32 => mapping(address => bool)) public controllers; uint256 public constant GRACE_PERIOD = 90 days; bytes4 constant private INTERFACE_META_ID = bytes4(keccak256("supportsInterface(bytes4)")); bytes4 constant private ERC721_ID = bytes4( keccak256("balanceOf(address)") ^ keccak256("ownerOf(uint256)") ^ keccak256("approve(address,uint256)") ^ keccak256("getApproved(uint256)") ^ keccak256("setApprovalForAll(address,bool)") ^ keccak256("isApprovedForAll(address,address)") ^ keccak256("transferFrom(address,address,uint256)") ^ keccak256("safeTransferFrom(address,address,uint256)") ^ keccak256("safeTransferFrom(address,address,uint256,bytes)") ); bytes4 constant private RECLAIM_ID = bytes4(keccak256("reclaim(bytes32,uint256,address)")); /** * v2.1.3 version of _isApprovedOrOwner which calls ownerOf(tokenId) and takes grace period into consideration instead of ERC721.ownerOf(tokenId); * https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v2.1.3/contracts/token/ERC721/ERC721.sol#L187 * @dev Returns whether the given spender can transfer a given token ID * @param spender address of the spender to query * @param tokenId uint256 ID of the token to be transferred * @return bool whether the msg.sender is approved for the given token ID, * is an operator of the owner, or is the owner of the token */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view override returns (bool) { address owner = ownerOf(tokenId); return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender)); } constructor(ENS _ens, Root _root) ERC721("Impervious Registry", "IR") RegistrarAccess(_root) { ens = _ens; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. */ function _baseURI() internal view virtual override returns (string memory) { return metadataUri; } modifier live(bytes32 node) { require(ens.owner(node) == address(this)); _; } modifier onlyController(bytes32 node) { require(controllers[node][msg.sender]); _; } /** * @dev Gets the owner of the specified token ID. Names become unowned * when their registration expires. * @param tokenId uint256 ID of the token to query the owner of * @return address currently marked as the owner of the given token ID */ function ownerOf(uint256 tokenId) public view override(IERC721, ERC721) returns (address) { require(expiries[tokenId] > block.timestamp); return super.ownerOf(tokenId); } // Change metadata uri function setUri(string memory _uri) external onlyOwner { metadataUri = _uri; } // Authorises a controller, who can register and renew domains. // can only be called by the node owner. function addController( bytes32 node, address controller ) external override onlyNodeOwner(node) onlyRegistryControllers(node, controller) { controllers[node][controller] = true; emit ControllerAdded(node, controller); } // Revoke controller permission for an address. // can only be called by the node owner. function removeController(bytes32 node, address controller) external override onlyNodeOwner(node) { controllers[node][controller] = false; emit ControllerRemoved(node, controller); } // Set the resolver for the TLD this registrar manages. // can only be called by the node owner. function setResolver(bytes32 node, address resolver) external override onlyNodeOwner(node) { ens.setResolver(node, resolver); } // Returns the expiration timestamp of the specified id. function nameExpires(uint256 id) external view override returns (uint) { return expiries[id]; } // Returns true iff the specified name is available for registration. function available(uint256 id) public view override returns (bool) { // Not available if it's registered here or in its grace period. return expiries[id] + GRACE_PERIOD < block.timestamp; } /** * @dev Register a name. * @param node The node hash. * @param label The token ID (keccak256 of the label). * @param owner The address that should own the registration. * @param duration Duration in seconds for the registration. */ function register(bytes32 node, bytes32 label, address owner, uint duration) external override returns (uint) { return _register(node, label, owner, duration, true); } /** * @dev Register a name, without modifying the registry. * @param node The node hash. * @param label The token ID (keccak256 of the label). * @param owner The address that should own the registration. * @param duration Duration in seconds for the registration. */ function registerOnly(bytes32 node, bytes32 label, address owner, uint duration) external returns (uint) { return _register(node, label, owner, duration, false); } function _register(bytes32 node, bytes32 label, address owner, uint duration, bool updateRegistry) internal live(node) onlyController(node) returns (uint) { require(block.timestamp + duration + GRACE_PERIOD > block.timestamp + GRACE_PERIOD); // Prevent future overflow uint256 id = _tokenID(node, label); require(available(id)); expiries[id] = block.timestamp + duration; if (_exists(id)) { // Name was previously owned, and expired _burn(id); } _mint(owner, id); if (updateRegistry) { ens.setSubnodeOwner(node, label, owner); } emit NameRegistered(node, label, owner, block.timestamp + duration); return block.timestamp + duration; } function renew(bytes32 node, bytes32 label, uint duration) external override live(node) onlyController(node) returns (uint) { uint256 id = _tokenID(node, label); require(expiries[id] + GRACE_PERIOD >= block.timestamp); // Name must be registered here or in grace period require(expiries[id] + duration + GRACE_PERIOD > duration + GRACE_PERIOD); // Prevent future overflow expiries[id] += duration; emit NameRenewed(node, label, expiries[id]); return expiries[id]; } /** * @dev Reclaim ownership of a name in ENS, if you own it in the registrar. */ function reclaim(bytes32 node, bytes32 label, address owner) external override live(node) { uint256 id = _tokenID(node, label); require(_isApprovedOrOwner(msg.sender, id)); ens.setSubnodeOwner(node, label, owner); } function supportsInterface(bytes4 interfaceID) public override(ERC721, IERC165) view returns (bool) { return interfaceID == INTERFACE_META_ID || interfaceID == ERC721_ID || interfaceID == RECLAIM_ID; } function _tokenID(bytes32 node, bytes32 label) internal pure returns (uint256) { return uint256(keccak256(abi.encodePacked(node, label))); } }
pragma solidity >=0.8.4; interface ENS { // Logged when the owner of a node assigns a new owner to a subnode. event NewOwner(bytes32 indexed node, bytes32 indexed label, address owner); // Logged when the owner of a node transfers ownership to a new account. event Transfer(bytes32 indexed node, address owner); // Logged when the resolver for a node changes. event NewResolver(bytes32 indexed node, address resolver); // Logged when the TTL of a node changes event NewTTL(bytes32 indexed node, uint64 ttl); // Logged when an operator is added or removed. event ApprovalForAll(address indexed owner, address indexed operator, bool approved); function setRecord(bytes32 node, address owner, address resolver, uint64 ttl) external virtual; function setSubnodeRecord(bytes32 node, bytes32 label, address owner, address resolver, uint64 ttl) external virtual; function setSubnodeOwner(bytes32 node, bytes32 label, address owner) external virtual returns(bytes32); function setResolver(bytes32 node, address resolver) external virtual; function setOwner(bytes32 node, address owner) external virtual; function setTTL(bytes32 node, uint64 ttl) external virtual; function setApprovalForAll(address operator, bool approved) external virtual; function owner(bytes32 node) external virtual view returns (address); function resolver(bytes32 node) external virtual view returns (address); function ttl(bytes32 node) external virtual view returns (uint64); function recordExists(bytes32 node) external virtual view returns (bool); function isApprovedForAll(address owner, address operator) external virtual view returns (bool); }
pragma solidity >=0.8.4; import "./ENS.sol"; /** * The ENS registry contract. */ contract ENSRegistry is ENS { struct Record { address owner; address resolver; uint64 ttl; } mapping (bytes32 => Record) records; mapping (address => mapping(address => bool)) operators; // Permits modifications only by the owner of the specified node. modifier authorised(bytes32 node) { address owner = records[node].owner; require(owner == msg.sender || operators[owner][msg.sender]); _; } /** * @dev Constructs a new ENS registrar. */ constructor() public { records[0x0].owner = msg.sender; } /** * @dev Sets the record for a node. * @param node The node to update. * @param owner The address of the new owner. * @param resolver The address of the resolver. * @param ttl The TTL in seconds. */ function setRecord(bytes32 node, address owner, address resolver, uint64 ttl) external virtual override { setOwner(node, owner); _setResolverAndTTL(node, resolver, ttl); } /** * @dev Sets the record for a subnode. * @param node The parent node. * @param label The hash of the label specifying the subnode. * @param owner The address of the new owner. * @param resolver The address of the resolver. * @param ttl The TTL in seconds. */ function setSubnodeRecord(bytes32 node, bytes32 label, address owner, address resolver, uint64 ttl) external virtual override { bytes32 subnode = setSubnodeOwner(node, label, owner); _setResolverAndTTL(subnode, resolver, ttl); } /** * @dev Transfers ownership of a node to a new address. May only be called by the current owner of the node. * @param node The node to transfer ownership of. * @param owner The address of the new owner. */ function setOwner(bytes32 node, address owner) public virtual override authorised(node) { _setOwner(node, owner); emit Transfer(node, owner); } /** * @dev Transfers ownership of a subnode keccak256(node, label) to a new address. May only be called by the owner of the parent node. * @param node The parent node. * @param label The hash of the label specifying the subnode. * @param owner The address of the new owner. */ function setSubnodeOwner(bytes32 node, bytes32 label, address owner) public virtual override authorised(node) returns(bytes32) { bytes32 subnode = keccak256(abi.encodePacked(node, label)); _setOwner(subnode, owner); emit NewOwner(node, label, owner); return subnode; } /** * @dev Sets the resolver address for the specified node. * @param node The node to update. * @param resolver The address of the resolver. */ function setResolver(bytes32 node, address resolver) public virtual override authorised(node) { emit NewResolver(node, resolver); records[node].resolver = resolver; } /** * @dev Sets the TTL for the specified node. * @param node The node to update. * @param ttl The TTL in seconds. */ function setTTL(bytes32 node, uint64 ttl) public virtual override authorised(node) { emit NewTTL(node, ttl); records[node].ttl = ttl; } /** * @dev Enable or disable approval for a third party ("operator") to manage * all of `msg.sender`'s ENS records. Emits the ApprovalForAll event. * @param operator Address to add to the set of authorized operators. * @param approved True if the operator is approved, false to revoke approval. */ function setApprovalForAll(address operator, bool approved) external virtual override { operators[msg.sender][operator] = approved; emit ApprovalForAll(msg.sender, operator, approved); } /** * @dev Returns the address that owns the specified node. * @param node The specified node. * @return address of the owner. */ function owner(bytes32 node) public virtual override view returns (address) { address addr = records[node].owner; if (addr == address(this)) { return address(0x0); } return addr; } /** * @dev Returns the address of the resolver for the specified node. * @param node The specified node. * @return address of the resolver. */ function resolver(bytes32 node) public virtual override view returns (address) { return records[node].resolver; } /** * @dev Returns the TTL of a node, and any records associated with it. * @param node The specified node. * @return ttl of the node. */ function ttl(bytes32 node) public virtual override view returns (uint64) { return records[node].ttl; } /** * @dev Returns whether a record has been imported to the registry. * @param node The specified node. * @return Bool if record exists */ function recordExists(bytes32 node) public virtual override view returns (bool) { return records[node].owner != address(0x0); } /** * @dev Query if an address is an authorized operator for another address. * @param owner The address that owns the records. * @param operator The address that acts on behalf of the owner. * @return True if `operator` is an approved operator for `owner`, false otherwise. */ function isApprovedForAll(address owner, address operator) external virtual override view returns (bool) { return operators[owner][operator]; } function _setOwner(bytes32 node, address owner) internal virtual { records[node].owner = owner; } function _setResolverAndTTL(bytes32 node, address resolver, uint64 ttl) internal { if(resolver != records[node].resolver) { records[node].resolver = resolver; emit NewResolver(node, resolver); } if(ttl != records[node].ttl) { records[node].ttl = ttl; emit NewTTL(node, ttl); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; import "./IERC721.sol"; import "./IERC721Receiver.sol"; import "./extensions/IERC721Metadata.sol"; import "../../utils/Address.sol"; import "../../utils/Context.sol"; import "../../utils/Strings.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: owner query for nonexistent token"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overridden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "ERC721: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _safeTransfer(from, to, tokenId, _data); } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `_data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory _data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "ERC721: operator query for nonexistent token"); address owner = ERC721.ownerOf(tokenId); return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory _data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); _afterTokenTransfer(address(0), to, tokenId); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); _afterTokenTransfer(owner, address(0), tokenId); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId); } /** * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Emits a {ApprovalForAll} event. */ function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/access/Ownable.sol"; contract Controllable is Ownable { mapping(address => bool) public controllers; event ControllerChanged(address indexed controller, bool enabled); modifier onlyController { require( controllers[msg.sender], "Controllable: Caller is not a controller" ); _; } function setController(address controller, bool enabled) public onlyOwner { controllers[controller] = enabled; emit ControllerChanged(controller, enabled); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@ensdomains/ens-contracts/contracts/registry/ENS.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "./Controllable.sol"; contract Root is Ownable, Controllable { bytes32 private constant ROOT_NODE = bytes32(0); bytes4 private constant INTERFACE_META_ID = bytes4(keccak256("supportsInterface(bytes4)")); event TLDLocked(bytes32 indexed label); ENS public ens; mapping(bytes32 => bool) public locked; constructor(ENS _ens) { ens = _ens; } function setSubnodeOwner(bytes32 label, address owner) external onlyController { require(!locked[label], "name locked"); ens.setSubnodeOwner(ROOT_NODE, label, owner); } function setResolver(address resolver) external onlyController { ens.setResolver(ROOT_NODE, resolver); } function lock(bytes32 label) external onlyController { emit TLDLocked(label); locked[label] = true; } function supportsInterface(bytes4 interfaceID) external pure returns (bool) { return interfaceID == INTERFACE_META_ID; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/token/ERC721/IERC721.sol"; interface IUniversalRegistrar is IERC721 { event ControllerAdded(bytes32 node, address indexed controller); event ControllerRemoved(bytes32 node, address indexed controller); event NameRegistered( bytes32 node, bytes32 indexed label, address indexed owner, uint256 expires ); event NameRenewed(bytes32 node, bytes32 indexed label, uint256 expires); // Authorises a controller, who can register and renew domains. function addController(bytes32 node, address controller) external; // Revoke controller permission for an address. function removeController(bytes32 node, address controller) external; // Set the resolver for the TLD this registrar manages. function setResolver(bytes32 node, address resolver) external; // Returns the expiration timestamp of the specified label hash. function nameExpires(uint256 id) external view returns (uint256); // Returns true iff the specified name is available for registration. function available(uint256 id) external view returns (bool); /** * @dev Register a name. */ function register( bytes32 node, bytes32 label, address owner, uint256 duration ) external returns (uint256); function renew(bytes32 node, bytes32 label, uint256 duration) external returns (uint256); /** * @dev Reclaim ownership of a name in ENS, if you own it in the registrar. */ function reclaim(bytes32 node, bytes32 label, address owner) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "../root/Root.sol"; contract RegistrarAccess { event NodeOwnerChanged(bytes32 node, address indexed oldOwner, address indexed newOwner); event RegistryControllersChanged(address indexed controller, bool approved); event RegistryNodeControllersChanged(bytes32 node, address indexed controller, bool approved); Root public root; constructor(Root _root) { root = _root; } // A map of top level domains and their authorised owner mapping(bytes32 => address) private nodeOwners; // A map specifying which controller addresses TLD owners are allowed to use. mapping(address => bool) private registryControllers; // A map specifying which controller addresses a specific TLD owner is allowed to use. mapping(bytes32 => mapping(address => bool)) private registryNodeControllers; modifier onlyNodeOwner(bytes32 node) { require(nodeOwners[node] == msg.sender); _; } modifier onlyRegistry { require(root.controllers(msg.sender)); _; } modifier onlyRegistryControllers(bytes32 node, address controller) { require(registryNodeControllers[node][controller] || registryControllers[controller], "controller not approved by registry"); _; } // Transfers ownership of a TLD to a new owner // can only be called by existing node owner. function transferNodeOwnership(bytes32 node, address newOwner) public onlyNodeOwner(node) { require(newOwner != address(0)); emit NodeOwnerChanged(node, nodeOwners[node], newOwner); nodeOwners[node] = newOwner; } // Gives up ownership of a TLD to a burn address. All functionality marked with onlyNodeOwner // will be disabled for the specified TLD. It will also affect any contracts // that rely on {ownerOfNode}. Use with extreme caution. function renounceNodeOwnership(bytes32 node) public onlyNodeOwner(node) { emit NodeOwnerChanged(node, nodeOwners[node], address(0)); nodeOwners[node] = address(0); } function ownerOfNode(bytes32 node) public view returns (address) { return nodeOwners[node]; } // Sets ownership of a name in the registrar. If the name // is locked, only the owner can transfer ownership by // calling transferNodeOwnership. function setSubnodeOwner(bytes32 label, address owner) public onlyRegistry returns(bytes32) { require(!root.locked(label), "name locked"); bytes32 node = keccak256(abi.encodePacked(bytes32(0), label)); emit NodeOwnerChanged(node, nodeOwners[node], owner); nodeOwners[node] = owner; return node; } // Whitelists a controller address to be used by the specified node. function approveControllerForNode(bytes32 node, address controller, bool approved) external onlyRegistry { registryNodeControllers[node][controller] = approved; emit RegistryNodeControllersChanged(node, controller, approved); } // Whitelists a controller address to be used by any node. function approveController(address controller, bool approved) external onlyRegistry { registryControllers[controller] = approved; emit RegistryControllersChanged(controller, approved); } }
{ "evmVersion": "istanbul", "libraries": {}, "metadata": { "bytecodeHash": "ipfs", "useLiteralContent": true }, "optimizer": { "enabled": true, "runs": 10000 }, "remappings": [], "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } } }
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- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"contract ENS","name":"_ens","type":"address"},{"internalType":"contract Root","name":"_root","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":true,"internalType":"address","name":"controller","type":"address"}],"name":"ControllerAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":true,"internalType":"address","name":"controller","type":"address"}],"name":"ControllerRemoved","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"label","type":"bytes32"},{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":false,"internalType":"uint256","name":"expires","type":"uint256"}],"name":"NameRegistered","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"label","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"expires","type":"uint256"}],"name":"NameRenewed","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":true,"internalType":"address","name":"oldOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"NodeOwnerChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"controller","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"RegistryControllersChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":true,"internalType":"address","name":"controller","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"RegistryNodeControllersChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"GRACE_PERIOD","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"address","name":"controller","type":"address"}],"name":"addController","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"controller","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"approveController","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"address","name":"controller","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"approveControllerForNode","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"available","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"},{"internalType":"address","name":"","type":"address"}],"name":"controllers","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ens","outputs":[{"internalType":"contract ENS","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"nameExpires","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"}],"name":"ownerOfNode","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"bytes32","name":"label","type":"bytes32"},{"internalType":"address","name":"owner","type":"address"}],"name":"reclaim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"bytes32","name":"label","type":"bytes32"},{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"duration","type":"uint256"}],"name":"register","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"bytes32","name":"label","type":"bytes32"},{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"duration","type":"uint256"}],"name":"registerOnly","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"address","name":"controller","type":"address"}],"name":"removeController","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"bytes32","name":"label","type":"bytes32"},{"internalType":"uint256","name":"duration","type":"uint256"}],"name":"renew","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"}],"name":"renounceNodeOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"root","outputs":[{"internalType":"contract Root","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"address","name":"resolver","type":"address"}],"name":"setResolver","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"label","type":"bytes32"},{"internalType":"address","name":"owner","type":"address"}],"name":"setSubnodeOwner","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_uri","type":"string"}],"name":"setUri","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceID","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferNodeOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
00000000000000000000000006081c6b2b876eabdc41dfd3345e8fa59588c02e000000000000000000000000d5237534f8800e1d30d3d5961cfe1104e93fa03a
-----Decoded View---------------
Arg [0] : _ens (address): 0x06081C6B2B876EABDC41DFD3345e8Fa59588C02e
Arg [1] : _root (address): 0xD5237534f8800e1d30d3D5961CFE1104E93fa03a
-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 00000000000000000000000006081c6b2b876eabdc41dfd3345e8fa59588c02e
Arg [1] : 000000000000000000000000d5237534f8800e1d30d3d5961cfe1104e93fa03a
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Multichain Portfolio | 30 Chains
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.