Contract Address Details

0x0A6d64413c07E10E890220BBE1c49170080C6Ca0

Contract Name
ENSRegistryWithFallback
Creator
0x4fa5fe–52b17b at 0x2c5e6e–332beb
Balance
0 EWT ( )
Tokens
Fetching tokens...
Transactions
1,218 Transactions
Transfers
0 Transfers
Gas Used
53,978,502
Last Balance Update
29172073
Contract name:
ENSRegistryWithFallback




Optimization enabled
false
Compiler version
v0.5.16+commit.9c3226ce




EVM Version
default




Verified at
2020-05-18T15:17:01.895803Z

Constructor Arguments

0000000000000000000000003538040d91f7f827d827c851dff8d3e28b917860

Arg [0] (address) : 0x3538040d91f7f827d827c851dff8d3e28b917860

              

Contract source code

pragma solidity >=0.4.0;


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;
    function setSubnodeRecord(bytes32 node, bytes32 label, address owner, address resolver, uint64 ttl) external;
    function setSubnodeOwner(bytes32 node, bytes32 label, address owner) external returns(bytes32);
    function setResolver(bytes32 node, address resolver) external;
    function setOwner(bytes32 node, address owner) external;
    function setTTL(bytes32 node, uint64 ttl) external;
    function setApprovalForAll(address operator, bool approved) external;
    function owner(bytes32 node) external view returns (address);
    function resolver(bytes32 node) external view returns (address);
    function ttl(bytes32 node) external view returns (uint64);
    function recordExists(bytes32 node) external view returns (bool);
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

/**
 * 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 {
        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 {
        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 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 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 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 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 {
        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 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 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 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 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 view returns (bool) {
        return operators[owner][operator];
    }

    function _setOwner(bytes32 node, address owner) internal {
        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);
        }
    }
}


/**
 * The ENS registry contract.
 */
contract ENSRegistryWithFallback is ENSRegistry {

    ENS public old;

    /**
     * @dev Constructs a new ENS registrar.
     */
    constructor(ENS _old) public ENSRegistry() {
        old = _old;
    }

    /**
     * @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 view returns (address) {
        if (!recordExists(node)) {
            return old.resolver(node);
        }

        return super.resolver(node);
    }

    /**
     * @dev Returns the address that owns the specified node.
     * @param node The specified node.
     * @return address of the owner.
     */
    function owner(bytes32 node) public view returns (address) {
        if (!recordExists(node)) {
            return old.owner(node);
        }

        return super.owner(node);
    }

    /**
     * @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 view returns (uint64) {
        if (!recordExists(node)) {
            return old.ttl(node);
        }

        return super.ttl(node);
    }

    function _setOwner(bytes32 node, address owner) internal {
        address addr = owner;
        if (addr == address(0x0)) {
            addr = address(this);
        }

        super._setOwner(node, addr);
    }
}
        

Contract ABI

[{"type":"constructor","stateMutability":"nonpayable","payable":false,"inputs":[{"type":"address","name":"_old","internalType":"contract ENS"}]},{"type":"event","name":"ApprovalForAll","inputs":[{"type":"address","name":"owner","internalType":"address","indexed":true},{"type":"address","name":"operator","internalType":"address","indexed":true},{"type":"bool","name":"approved","internalType":"bool","indexed":false}],"anonymous":false},{"type":"event","name":"NewOwner","inputs":[{"type":"bytes32","name":"node","internalType":"bytes32","indexed":true},{"type":"bytes32","name":"label","internalType":"bytes32","indexed":true},{"type":"address","name":"owner","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"NewResolver","inputs":[{"type":"bytes32","name":"node","internalType":"bytes32","indexed":true},{"type":"address","name":"resolver","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"NewTTL","inputs":[{"type":"bytes32","name":"node","internalType":"bytes32","indexed":true},{"type":"uint64","name":"ttl","internalType":"uint64","indexed":false}],"anonymous":false},{"type":"event","name":"Transfer","inputs":[{"type":"bytes32","name":"node","internalType":"bytes32","indexed":true},{"type":"address","name":"owner","internalType":"address","indexed":false}],"anonymous":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"isApprovedForAll","inputs":[{"type":"address","name":"owner","internalType":"address"},{"type":"address","name":"operator","internalType":"address"}],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":"","internalType":"contract ENS"}],"name":"old","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":"","internalType":"address"}],"name":"owner","inputs":[{"type":"bytes32","name":"node","internalType":"bytes32"}],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"recordExists","inputs":[{"type":"bytes32","name":"node","internalType":"bytes32"}],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":"","internalType":"address"}],"name":"resolver","inputs":[{"type":"bytes32","name":"node","internalType":"bytes32"}],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"setApprovalForAll","inputs":[{"type":"address","name":"operator","internalType":"address"},{"type":"bool","name":"approved","internalType":"bool"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"setOwner","inputs":[{"type":"bytes32","name":"node","internalType":"bytes32"},{"type":"address","name":"owner","internalType":"address"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"setRecord","inputs":[{"type":"bytes32","name":"node","internalType":"bytes32"},{"type":"address","name":"owner","internalType":"address"},{"type":"address","name":"resolver","internalType":"address"},{"type":"uint64","name":"ttl","internalType":"uint64"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"setResolver","inputs":[{"type":"bytes32","name":"node","internalType":"bytes32"},{"type":"address","name":"resolver","internalType":"address"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"setSubnodeOwner","inputs":[{"type":"bytes32","name":"node","internalType":"bytes32"},{"type":"bytes32","name":"label","internalType":"bytes32"},{"type":"address","name":"owner","internalType":"address"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"setSubnodeRecord","inputs":[{"type":"bytes32","name":"node","internalType":"bytes32"},{"type":"bytes32","name":"label","internalType":"bytes32"},{"type":"address","name":"owner","internalType":"address"},{"type":"address","name":"resolver","internalType":"address"},{"type":"uint64","name":"ttl","internalType":"uint64"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"setTTL","inputs":[{"type":"bytes32","name":"node","internalType":"bytes32"},{"type":"uint64","name":"ttl","internalType":"uint64"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint64","name":"","internalType":"uint64"}],"name":"ttl","inputs":[{"type":"bytes32","name":"node","internalType":"bytes32"}],"constant":true}]
            

Deployed ByteCode

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