568 lines
19 KiB
Dart
568 lines
19 KiB
Dart
import 'dart:async';
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import 'dart:io';
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import 'dart:typed_data';
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import 'package:convert/convert.dart';
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import 'package:cryptography/cryptography.dart';
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import 'package:encrypt/encrypt.dart';
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import 'package:fast_rsa/fast_rsa.dart' as fastRsa;
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import 'package:get/get.dart';
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import 'package:pointycastle/asn1/asn1_parser.dart';
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import 'package:pointycastle/asn1/primitives/asn1_integer.dart';
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import 'package:pointycastle/asn1/primitives/asn1_sequence.dart';
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import 'package:pointycastle/asymmetric/api.dart';
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import 'package:pointycastle/digests/sha256.dart';
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import 'package:pointycastle/export.dart' as pc;
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import 'package:star_lock/app_settings/app_settings.dart';
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import 'package:star_lock/flavors.dart';
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import 'package:star_lock/network/start_chart_api.dart';
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import 'package:star_lock/talk/startChart/command/message_command.dart';
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import 'package:star_lock/talk/startChart/constant/ip_constant.dart';
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import 'package:star_lock/talk/startChart/constant/listen_addr_type_constant.dart';
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import 'package:star_lock/talk/startChart/entity/relay_info_entity.dart';
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import 'package:star_lock/talk/startChart/entity/report_information_data.dart';
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import 'package:star_lock/talk/startChart/entity/scp_message.dart';
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import 'package:star_lock/talk/startChart/entity/star_chart_register_node_entity.dart';
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import 'package:star_lock/tools/deviceInfo_utils.dart';
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import 'package:star_lock/tools/storage.dart';
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import 'package:uuid/uuid.dart';
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import 'dart:convert';
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import 'dart:typed_data';
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import 'package:crypto/crypto.dart';
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import 'package:pointycastle/export.dart' as pc; // 为 Pointy Castle 添加命名空间
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import 'package:asn1lib/asn1lib.dart' as asn1lib; // Prefix for asn1lib
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class StartChartManage {
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// 私有构造函数，防止外部直接new对象
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StartChartManage._internal();
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// 单例对象
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static final StartChartManage _instance = StartChartManage._internal();
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// 工厂构造函数，返回单例对象
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factory StartChartManage() {
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return _instance;
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}
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// 产品昵称
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final String _productName = F.navTitle;
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RawDatagramSocket? _udpSocket;
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late String remoteHost = ''; // 远程主机地址(服务器返回)
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late int remotePort = 0; // 远程主机端口(服务器返回)
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final int localPort = 62289; // 本地端口
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String localPublicHost = ''; // 本地公网ip地址
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int heartbeatIntervalTime = 1; // 心跳包间隔时间（s）
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Timer? _heartBeatTimer; // 心跳包定时器
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bool _heartBeatTimerRunning = false; // 心跳包定时任务发送状态
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String ToPeerId = ''; // 对端ID
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String FromPeerId = ''; // 我的ID
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// echo测试peer对端
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final String echoPeerId = '3phX8Ng2cZHz5NtP8xAf6nYy2z1BYytoejgjoHrWMGhH';
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// 星图服务初始化
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Future<void> init() async {
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// 节点注册
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await _clientRegister();
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// 中继查询
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await _relayQuery();
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// 上报
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await reportInformation();
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// 初始化udp服务
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await _onlineRelayService();
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}
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/// 客户端注册
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Future<void> _clientRegister() async {
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_log(text: '开始注册客户端');
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final StarChartRegisterNodeEntity requestStarChartRegisterNode =
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await _requestStarChartRegisterNode();
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await _saveStarChartRegisterNodeToStorage(requestStarChartRegisterNode);
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_log(text: '获取到星图注册节点信息:$requestStarChartRegisterNode');
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FromPeerId = requestStarChartRegisterNode.peer!.id ?? '';
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ToPeerId = echoPeerId;
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}
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// 中继查询
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Future<void> _relayQuery() async {
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final RelayInfoEntity relayInfoEntity =
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await StartChartApi.to.relayQueryInfo();
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_saveRelayInfoEntityToStorage(relayInfoEntity);
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if (relayInfoEntity.client_addr != null) {
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localPublicHost = relayInfoEntity.client_addr!;
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}
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if (relayInfoEntity.relay_list?.length != 0) {
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final data = relayInfoEntity.relay_list?[0];
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final parseUdpUrl = _parseUdpUrl(data?.listenAddr ?? '');
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remoteHost = parseUdpUrl['host'] ?? '';
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remotePort = parseUdpUrl['port'] ?? '';
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}
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_log(text: '中继信息----》${relayInfoEntity}');
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}
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void closeUdpSocket() {
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if (_udpSocket != null) {
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_udpSocket?.close();
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}
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}
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// 初始化udp
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Future<void> _onlineRelayService() async {
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var addressIListenFrom = InternetAddress.anyIPv4;
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RawDatagramSocket.bind(addressIListenFrom, localPort)
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.then((RawDatagramSocket socket) {
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_udpSocket = socket;
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/// 广播功能
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_udpSocket!.broadcastEnabled = true;
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/// 设置数据接收回调
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_onReceiveData(_udpSocket!);
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}).catchError((error) {
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_log(text: 'Failed to bind UDP socket: $error');
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});
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}
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// 接收返回的数据
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void _onReceiveData(RawDatagramSocket socket) {
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socket.listen((RawSocketEvent event) {
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if (event == RawSocketEvent.read) {
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Datagram? dg = socket.receive();
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try {
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_log(text: '收到消息---> 长度：${dg?.data?.length}, 数据：${dg?.data}');
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if (dg?.data != null) {
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_log(text: '=============${bytesToHex(dg!.data)}');
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final deserialize = ScpMessage.deserialize(dg!.data);
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_log(text: 'Udp收到结构体数据---》$deserialize');
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}
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} catch (e) {
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_log(text: '❌ Udp ----> $e');
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}
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}
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});
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}
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// 上报信息至发现服务
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Future<void> reportInformation() async {
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_log(text: '上报信息至发现服务');
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// 构建参数
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ReportInformationData data = await _makeReportInformationData();
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final response = await StartChartApi.to.reportInformation(
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reportInformationData: data,
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);
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if (response.statusCode == 200) {
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_log(text: '星图登录成功');
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// 发送送上线消息
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await _sendOnlineMessage();
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// 发送心跳消息
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_sendHeartbeatMessage();
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}
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}
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// 发送上线消息
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Future<void> _sendOnlineMessage() async {
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// 组装上线消息
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final message = MessageCommand.goOnlineRelay(
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FromPeerId: FromPeerId, ToPeerId: ToPeerId);
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await _sendMessage(message: message);
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}
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// 发送回声测试消息
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void sendEchoMessage({required String ToPeerId}) async {
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final message = MessageCommand.echoMessage(
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ToPeerId: ToPeerId,
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FromPeerId: FromPeerId,
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);
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await _sendMessage(message: message);
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}
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// 发送心跳包消息
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void _sendHeartbeatMessage() async {
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// 从缓存中获取中继信息
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final RelayInfoEntity? relayInfoEntity = await Storage.getRelayInfo();
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final String relayPeerId = relayInfoEntity?.relay_list?[0].peerID ?? '';
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if (_heartBeatTimerRunning) {
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_log(text: '心跳已经开始了. 请勿重复发送心跳包消息');
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return;
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}
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_heartBeatTimer ??= Timer.periodic(
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Duration(
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seconds: heartbeatIntervalTime,
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),
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(Timer timer) async {
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final List<int> message = MessageCommand.heartbeatMessage(
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FromPeerId: FromPeerId,
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ToPeerId: relayPeerId,
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);
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await _sendMessage(message: message);
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},
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);
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_heartBeatTimerRunning = true;
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}
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// 停止定时发送心跳包
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void stopHeartbeat() {
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_heartBeatTimer?.cancel();
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_heartBeatTimer = null; // 清除定时器引用
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_heartBeatTimerRunning = false;
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_log(text: '发送心跳包结束');
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}
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// 发送消息
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Future<void> _sendMessage({required List<int> message}) async {
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// _log(text: '发送给中继的消息体：${message}，序列化之后的数据：【${bytesToHex(message)}】');
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var result = await _udpSocket?.send(
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message, InternetAddress(remoteHost), remotePort);
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if (result != message.length) {
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AppLog.log('❌Udp ----> send data error $result ${message.length}');
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_udpSocket = null;
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}
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}
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// 请求注册节点
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Future<StarChartRegisterNodeEntity> _requestStarChartRegisterNode() async {
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// 获取设备信息
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final Map<String, String> deviceInfo = await _getDeviceInfo();
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// 发送注册节点请求
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final StarChartRegisterNodeEntity response =
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await StartChartApi.to.starChartRegisterNode(
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product: _productName,
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model: '${deviceInfo['brand']}_${deviceInfo['model']}',
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name: '${deviceInfo['id']}',
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unique: deviceInfo['id'] ?? Uuid().v1(),
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);
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return response;
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}
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// 保存星图注册节点信息至缓存
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Future<void> _saveStarChartRegisterNodeToStorage(
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StarChartRegisterNodeEntity starChartRegisterNodeEntity) async {
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if (starChartRegisterNodeEntity != null) {
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await Storage.saveStarChartRegisterNodeInfo(starChartRegisterNodeEntity);
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_log(text: '注册成功');
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}
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}
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// 保存星图中继服务器信息至缓存
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Future<void> _saveRelayInfoEntityToStorage(
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RelayInfoEntity relayInfoEntity) async {
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if (relayInfoEntity != null) {
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await Storage.saveRelayInfo(relayInfoEntity);
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}
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}
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// 构造上报信息数据参数
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Future<ReportInformationData> _makeReportInformationData() async {
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// 从缓存中获取中继信息
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final RelayInfoEntity? relayInfoEntity = await Storage.getRelayInfo();
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// 获取公钥
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final publicKey = await getPublicKey();
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// 获取私钥
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final privateKey = await getPrivateKey();
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// 生成签名
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final sign = await _generateSign(
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currentTimestamp: relayInfoEntity!.time ?? 0,
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privateKeyHex: privateKey,
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);
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// 获取本机所有ip地址和中继返回的外网地址
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final List<ListenAddrData> listenAddrDataList =
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await _makeListenAddrDataList();
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//
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final RelayServiceData relayServiceData = RelayServiceData(
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name: relayInfoEntity?.relay_list?[0].name ?? '',
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listen_addr: relayInfoEntity?.relay_list?[0].listenAddr ?? '',
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peers_max: relayInfoEntity?.relay_list?[0].peerMax ?? 0,
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peers_current: relayInfoEntity?.relay_list?[0].peerCurrent ?? 0,
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);
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ReportInformationData data = ReportInformationData(
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id: FromPeerId,
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public_key: publicKey,
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listen_addr: listenAddrDataList,
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relay_service: relayServiceData,
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time: relayInfoEntity.time ?? 0,
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sign: sign,
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);
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return data;
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}
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// 获取本机所有ip地址和中继返回的外网地址
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Future<List<ListenAddrData>> _makeListenAddrDataList() async {
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final List<ListenAddrData> listenAddrDataList = [];
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final List<String> localIp = await _getAllIpAddresses();
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// 从缓存中获取中继信息，取出返回的客户端ip地址
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final RelayInfoEntity? relayInfoEntity = await Storage.getRelayInfo();
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if (relayInfoEntity != null && relayInfoEntity.client_addr != null) {
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listenAddrDataList.add(
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ListenAddrData(
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type: ListenAddrTypeConstant.relay,
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address: IpConstant.udpUrl +
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relayInfoEntity.client_addr! +
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':' +
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localPort.toString(),
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),
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);
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}
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localIp.forEach((element) {
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listenAddrDataList.add(
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ListenAddrData(
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type: ListenAddrTypeConstant.local,
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address: IpConstant.udpUrl + element + ':' + localPort.toString(),
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),
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);
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});
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return listenAddrDataList ?? [];
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}
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/// 获取本机所有 IP 地址
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Future<List<String>> _getAllIpAddresses() async {
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final List<String> ipAddresses = [];
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try {
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final List<NetworkInterface> interfaces = await NetworkInterface.list(
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includeLoopback: true,
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type: InternetAddressType.any,
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);
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for (final interface in interfaces) {
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for (final address in interface.addresses) {
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// 获取原始 IP 地址
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String ipAddress = address.address;
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// 解码 URL 编码的字符串
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ipAddress = Uri.decodeFull(ipAddress);
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// 移除 IPv6 地址中的接口标识符（如果有）
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if (ipAddress.contains('%')) {
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ipAddress = ipAddress.split('%').first;
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}
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// 确保 IP 地址不为空且不在排除列表中
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if (ipAddress.isNotEmpty &&
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!IpConstant.reportExcludeIp.contains(ipAddress)) {
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ipAddresses.add(ipAddress);
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}
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}
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}
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} catch (e) {
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_log(text: '❌--->获取本机IP时出现错误: $e');
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}
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return ipAddresses ?? [];
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}
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void _log({required String text}) {
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AppLog.log('$_productName=====${text}');
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}
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/// 获取设备信息
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Future<Map<String, String>> _getDeviceInfo() async {
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final Map<String, String> deviceInfo =
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await DeviceInfoUtils.getDeviceInfo();
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return deviceInfo;
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}
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/// 解析 UDP URL 并提取 IP 地址和端口号
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Map<String, dynamic> _parseUdpUrl(String url) {
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// 使用正则表达式匹配 IP 地址和端口号
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final regex = RegExp(r'udp://(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}):(\d+)')
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.firstMatch(url);
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if (regex != null) {
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final ip = regex.group(1);
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final portStr = regex.group(2);
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final port = int.tryParse(portStr ?? '');
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if (ip != null && port != null) {
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return {'host': ip, 'port': port};
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}
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}
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throw FormatException('无法解析 URL 格式: $url');
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}
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String bytesToHex(List<int> bytes) {
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return bytes.map((byte) => byte.toRadixString(16).padLeft(2, '0')).join('');
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}
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// 生成签名sing
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Future<String> _generateSign({
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required int currentTimestamp,
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required String privateKeyHex,
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}) async {
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String resultSign = '';
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try {
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// 1. 将 32 位时间戳以小端字节序编码为二进制数据
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Uint8List signData = encodeTimestampToLittleEndianBytes(currentTimestamp);
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// 2.将十六进制字符串转换为字节数组
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List<int> privateKeyBytes = hexToBytes(privateKeyHex);
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// 3.将私钥转换为 PEM 格式
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final pemPrivateKey =
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convertToPemPrivateKey(privateKeyBytes, isPKCS8: true);
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// 4.签名
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var result = await fastRsa.RSA
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.signPKCS1v15Bytes(signData, fastRsa.Hash.SHA256, pemPrivateKey);
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resultSign = hex.encode(result);
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} catch (e) {
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_log(text: '❌--->上报信息生成签名时出现错误: $e');
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e.printError();
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}
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return resultSign ?? '';
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}
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// 将 32 位时间戳以小端字节序编码为二进制数据
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Uint8List encodeTimestampToLittleEndianBytes(int timestamp) {
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// 创建一个 4 字节的 ByteData 对象
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ByteData byteData = ByteData(4);
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// 将 32 位时间戳写入 ByteData，使用小端字节序
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byteData.setUint32(0, timestamp, Endian.little);
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// 将 ByteData 转换为 Uint8List
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Uint8List bytes = byteData.buffer.asUint8List();
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return bytes;
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}
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// 将字节数组转换为 PEM 格式的公钥
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String convertToPemPublicKey(List<int> publicKeyBytes,
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{bool isPKCS8 = true}) {
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// 将字节数组转换为Base64编码的字符串
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String base64PublicKey = base64Encode(publicKeyBytes);
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// 添加PEM格式的头尾标签
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String pemHeader;
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String pemFooter;
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if (isPKCS8) {
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// 添加PEM格式的头尾标签
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pemHeader = "-----BEGIN PUBLIC KEY-----";
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pemFooter = "-----END PUBLIC KEY-----";
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} else {
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// 添加PEM格式的头尾标签
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pemHeader = "-----BEGIN RSA PUBLIC KEY-----";
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pemFooter = "-----END RSA PUBLIC KEY-----";
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}
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// 将Base64字符串分行为每行64个字符
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const lineLength = 64;
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List<String> lines = [];
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for (int i = 0; i < base64PublicKey.length; i += lineLength) {
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int end = (i + lineLength < base64PublicKey.length)
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? i + lineLength
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: base64PublicKey.length;
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lines.add(base64PublicKey.substring(i, end));
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}
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// 组合成完整的PEM格式字符串
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return "$pemHeader\n${lines.join('\n')}\n$pemFooter";
|
||
}
|
||
|
||
String convertToPemPrivateKey(List<int> privateKeyBytes,
|
||
{bool isPKCS8 = true}) {
|
||
// 将字节数组转换为Base64编码的字符串
|
||
String base64PrivateKey = base64Encode(privateKeyBytes);
|
||
|
||
// 添加PEM格式的头尾标签
|
||
String pemHeader;
|
||
String pemFooter;
|
||
|
||
if (isPKCS8) {
|
||
pemHeader = "-----BEGIN PRIVATE KEY-----";
|
||
pemFooter = "-----END PRIVATE KEY-----";
|
||
} else {
|
||
pemHeader = "-----BEGIN RSA PRIVATE KEY-----";
|
||
pemFooter = "-----END RSA PRIVATE KEY-----";
|
||
}
|
||
|
||
// 将Base64字符串分行为每行64个字符
|
||
const lineLength = 64;
|
||
List<String> lines = []; // 用于存储每一行
|
||
|
||
for (int i = 0; i < base64PrivateKey.length; i += lineLength) {
|
||
int end = (i + lineLength < base64PrivateKey.length)
|
||
? i + lineLength
|
||
: base64PrivateKey.length;
|
||
lines.add(base64PrivateKey.substring(i, end));
|
||
}
|
||
|
||
// 组合成完整的PEM格式字符串
|
||
return "$pemHeader\n${lines.join('\n')}\n$pemFooter";
|
||
}
|
||
|
||
/// 自定义 PEM 格式的 RSA 私钥解析器
|
||
pc.RSAPrivateKey loadPrivateKey(String privateKeyHex) {
|
||
// 将十六进制字符串转换为字节数组
|
||
final uint8list = Uint8List.fromList(hexToBytes(privateKeyHex));
|
||
try {
|
||
// 使用 asn1lib 的 ASN1Parser 解析
|
||
final asn1Parser = asn1lib.ASN1Parser(uint8list);
|
||
final topLevelSeq = asn1Parser.nextObject() as asn1lib.ASN1Sequence;
|
||
|
||
final modulus = bytesToBigInt(
|
||
(topLevelSeq.elements[1] as asn1lib.ASN1Integer).valueBytes());
|
||
final privateExponent = bytesToBigInt(
|
||
(topLevelSeq.elements[3] as asn1lib.ASN1Integer).valueBytes());
|
||
final p = bytesToBigInt(
|
||
(topLevelSeq.elements[4] as asn1lib.ASN1Integer).valueBytes());
|
||
final q = bytesToBigInt(
|
||
(topLevelSeq.elements[5] as asn1lib.ASN1Integer).valueBytes());
|
||
|
||
return pc.RSAPrivateKey(modulus, privateExponent, p, q);
|
||
} catch (e) {
|
||
// 如果发生解码错误，打印错误信息
|
||
print("Error decoding private key: $e");
|
||
rethrow;
|
||
}
|
||
}
|
||
|
||
// 解析对端数据
|
||
Future<void> analyzeInformationOtherEnd() async {
|
||
await StartChartApi.to.analyzeInformationOtherEnd(peerId: ToPeerId);
|
||
}
|
||
|
||
// 将十六进制字符串转换为字节数组
|
||
List<int> hexToBytes(String hex) {
|
||
return List<int>.generate(hex.length ~/ 2,
|
||
(i) => int.parse(hex.substring(i * 2, i * 2 + 2), radix: 16));
|
||
}
|
||
|
||
BigInt bytesToBigInt(Uint8List bytes) {
|
||
return BigInt.parse(
|
||
bytes.map((byte) => byte.toRadixString(16).padLeft(2, '0')).join(),
|
||
radix: 16,
|
||
);
|
||
}
|
||
|
||
/// 使用 RSA 私钥进行 PKCS#1 v1.5 签名
|
||
Uint8List rsaSign(pc.RSAPrivateKey privateKey, List<int> data) {
|
||
final signer = pc.RSASigner(pc.SHA256Digest(), '06052b24030203')
|
||
..init(true, pc.PrivateKeyParameter<pc.RSAPrivateKey>(privateKey));
|
||
return signer.generateSignature(Uint8List.fromList(data)).bytes;
|
||
}
|
||
|
||
Future<String> getPublicKey() async {
|
||
// 从缓存中获取星图注册节点信息
|
||
final StarChartRegisterNodeEntity? starChartRegisterNodeInfo =
|
||
await Storage.getStarChartRegisterNodeInfo();
|
||
return starChartRegisterNodeInfo?.peer?.publicKey ?? '';
|
||
}
|
||
|
||
Future<String> getPrivateKey() async {
|
||
// 从缓存中获取星图注册节点信息
|
||
final StarChartRegisterNodeEntity? starChartRegisterNodeInfo =
|
||
await Storage.getStarChartRegisterNodeInfo();
|
||
return starChartRegisterNodeInfo?.peer?.privateKey ?? '';
|
||
}
|
||
}
|