95 lines
2.6 KiB
Solidity
95 lines
2.6 KiB
Solidity
pragma solidity ^0.4.0;
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import './AbstractENS.sol';
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/**
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* The ENS registry contract.
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*/
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contract ENS is AbstractENS {
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struct Record {
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address owner;
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address resolver;
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uint64 ttl;
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}
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mapping(bytes32=>Record) records;
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// Permits modifications only by the owner of the specified node.
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modifier only_owner(bytes32 node) {
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if (records[node].owner != msg.sender) throw;
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_;
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}
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/**
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* Constructs a new ENS registrar.
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*/
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function ENS() {
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records[0].owner = msg.sender;
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}
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/**
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* Returns the address that owns the specified node.
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*/
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function owner(bytes32 node) constant returns (address) {
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return records[node].owner;
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}
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/**
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* Returns the address of the resolver for the specified node.
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*/
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function resolver(bytes32 node) constant returns (address) {
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return records[node].resolver;
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}
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/**
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* Returns the TTL of a node, and any records associated with it.
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*/
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function ttl(bytes32 node) constant returns (uint64) {
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return records[node].ttl;
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}
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/**
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* Transfers ownership of a node to a new address. May only be called by the current
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* owner of the node.
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* @param node The node to transfer ownership of.
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* @param owner The address of the new owner.
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*/
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function setOwner(bytes32 node, address owner) only_owner(node) {
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Transfer(node, owner);
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records[node].owner = owner;
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}
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/**
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* Transfers ownership of a subnode sha3(node, label) to a new address. May only be
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* called by the owner of the parent node.
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* @param node The parent node.
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* @param label The hash of the label specifying the subnode.
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* @param owner The address of the new owner.
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*/
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function setSubnodeOwner(bytes32 node, bytes32 label, address owner) only_owner(node) {
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var subnode = sha3(node, label);
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NewOwner(node, label, owner);
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records[subnode].owner = owner;
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}
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/**
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* Sets the resolver address for the specified node.
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* @param node The node to update.
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* @param resolver The address of the resolver.
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*/
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function setResolver(bytes32 node, address resolver) only_owner(node) {
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NewResolver(node, resolver);
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records[node].resolver = resolver;
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}
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/**
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* Sets the TTL for the specified node.
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* @param node The node to update.
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* @param ttl The TTL in seconds.
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*/
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function setTTL(bytes32 node, uint64 ttl) only_owner(node) {
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NewTTL(node, ttl);
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records[node].ttl = ttl;
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}
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}
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