eth-contract-registry/solidity/Registry.sol
2021-04-30 13:11:22 +02:00

76 lines
2.0 KiB
Solidity

pragma solidity >0.6.11;
// Author: Louis Holbrook <dev@holbrook.no> 0826EDA1702D1E87C6E2875121D2E7BB88C2A746
// SPDX-License-Identifier: GPL-3.0-or-later
// File-version: 2
// Description: Top-level smart contract registry for the CIC network
contract CICRegistry {
// Implements EIP 173
address public owner;
bytes32[] public identifiers;
mapping (bytes32 => address) entries; // contractidentifier -> address
mapping (bytes32 => bytes32) chainIdentifiers; // contractidentifier -> chainidentifier
mapping (bytes32 => bytes32) chainConfigs; // chainidentifier -> chainconfig
constructor(bytes32[] memory _identifiers) public {
owner = msg.sender;
for (uint i = 0; i < _identifiers.length; i++) {
identifiers.push(_identifiers[i]);
}
}
function set(bytes32 _identifier, address _address, bytes32 _chainDescriptor, bytes32 _chainConfig) public returns (bool) {
require(msg.sender == owner);
require(entries[_identifier] == address(0));
bool found = false;
for (uint i = 0; i < identifiers.length; i++) {
if (identifiers[i] == _identifier) {
found = true;
}
}
require(found);
entries[_identifier] = _address;
chainIdentifiers[_identifier] = _chainDescriptor;
chainConfigs[_chainDescriptor] = _chainConfig;
return true;
}
// Implements EIP 173
function transferOwnership(address _newOwner) public returns (bool) {
require(msg.sender == owner);
owner = _newOwner;
return true;
}
// Implements Registry
function addressOf(bytes32 _identifier) public view returns (address) {
return entries[_identifier];
}
function chainOf(bytes32 _identifier) public view returns (bytes32) {
return chainIdentifiers[_identifier];
}
function configSumOf(bytes32 _chain) public view returns (bytes32) {
return chainConfigs[_chain];
}
// Implements EIP 165
function supportsInterface(bytes4 _sum) public pure returns (bool) {
if (_sum == 0xbb34534c) { // Registry
return true;
}
if (_sum == 0x01ffc9a7) { // EIP165
return true;
}
if (_sum == 0x9493f8b2) { // EIP173
return true;
}
return false;
}
}