编译器
0.8.24+commit.e11b9ed9
文件 1 的 3:Context.sol
pragma solidity ^0.8.20;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
function _contextSuffixLength() internal view virtual returns (uint256) {
return 0;
}
}
文件 2 的 3:Ownable.sol
pragma solidity ^0.8.20;
import {Context} from "../utils/Context.sol";
abstract contract Ownable is Context {
address private _owner;
error OwnableUnauthorizedAccount(address account);
error OwnableInvalidOwner(address owner);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor(address initialOwner) {
if (initialOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(initialOwner);
}
modifier onlyOwner() {
_checkOwner();
_;
}
function owner() public view virtual returns (address) {
return _owner;
}
function _checkOwner() internal view virtual {
if (owner() != _msgSender()) {
revert OwnableUnauthorizedAccount(_msgSender());
}
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
if (newOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
文件 3 的 3:TokiemonUserRegistry.sol
pragma solidity 0.8.24;
import "@openzeppelin/contracts/access/Ownable.sol";
contract TokiemonUserRegistry is Ownable {
mapping(address => string) private addressToUsername;
mapping(string => address) private usernameToAddress;
uint8 public constant MAX_USERNAME_LENGTH = 14;
event UsernameSet(address indexed user, string username);
constructor() Ownable(msg.sender) {}
function getUsername(address _user) public view returns (string memory) {
return addressToUsername[_user];
}
function getAddress(string memory _username) public view returns (address) {
return usernameToAddress[_username];
}
function setUsername(string memory _username) public {
require(bytes(_username).length > 0, "Username cannot be empty");
require(bytes(_username).length <= MAX_USERNAME_LENGTH, "Username too long");
require(usernameToAddress[_username] == address(0), "Username already taken");
require(isValidUsername(_username), "Username must be lowercase letters and numbers only");
string memory oldUsername = addressToUsername[msg.sender];
if (bytes(oldUsername).length > 0) {
delete usernameToAddress[oldUsername];
}
addressToUsername[msg.sender] = _username;
usernameToAddress[_username] = msg.sender;
emit UsernameSet(msg.sender, _username);
}
function setUsernameByOwner(address _user, string memory _username) public onlyOwner {
require(bytes(_username).length > 0, "Username cannot be empty");
require(usernameToAddress[_username] == address(0), "Username already taken");
string memory oldUsername = addressToUsername[_user];
if (bytes(oldUsername).length > 0) {
delete usernameToAddress[oldUsername];
}
addressToUsername[_user] = _username;
usernameToAddress[_username] = _user;
emit UsernameSet(_user, _username);
}
function isValidUsername(string memory _username) internal pure returns (bool) {
bytes memory b = bytes(_username);
for (uint i; i < b.length; i++) {
bytes1 char = b[i];
if (!(char >= 0x30 && char <= 0x39) && !(char >= 0x61 && char <= 0x7A)) {
return false;
}
}
return true;
}
}
{
"compilationTarget": {
"src/TokiemonUserRegistry.sol": "TokiemonUserRegistry"
},
"evmVersion": "paris",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}
[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"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":"user","type":"address"},{"indexed":false,"internalType":"string","name":"username","type":"string"}],"name":"UsernameSet","type":"event"},{"inputs":[],"name":"MAX_USERNAME_LENGTH","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"_username","type":"string"}],"name":"getAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"}],"name":"getUsername","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_username","type":"string"}],"name":"setUsername","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"},{"internalType":"string","name":"_username","type":"string"}],"name":"setUsernameByOwner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]