Initial commit: JustAMessenger v0.1.0

Серверная часть (Go): - WebSocket сервер с бинарным протоколом - XChaCha20-Poly1305 шифрование - zstd сжатие с дедупликацией (64KB чанки) - SQLite хранилище (WAL режим) - Управление гильдиями, каналами, ролями - Федерация между серверами (ed25519) - REST API + WebSocket endpoints Клиентская часть (Flutter): - Material Design 3 тёмная тема (Discord-like) - WebSocket соединение с сервером - Экраны: сплэш, логин, домашний, гильдии, чат - Модели: пользователи, гильдии, каналы, сообщения, роли - Сервисы: соединение, API, криптография, тема - Виджеты: иконки гильдий, сообщения, ввод чата - Web сборка (PWA) Документация: - AGENTS.md — контекст для ИИ ассистентов - docs/protocol.md — спецификация протокола
2026-06-06 22:39:14 +00:00
commit 096c4d0a2d
40 changed files with 5054 additions and 0 deletions
@@ -0,0 +1,199 @@
+import 'dart:async';
+import 'dart:convert';
+import 'dart:typed_data';
+import 'package:flutter/foundation.dart';
+import 'package:web_socket_channel/web_socket_channel.dart';
+import '../models/message.dart';
+
+enum ConnectionState { disconnected, connecting, connected }
+
+class ConnectionService extends ChangeNotifier {
+  WebSocketChannel? _channel;
+  ConnectionState _state = ConnectionState.disconnected;
+  String _serverUrl = 'ws://localhost:8443/ws';
+  String? _userId;
+  String? _username;
+  String? _token;
+  Timer? _heartbeatTimer;
+  int _seq = 0;
+
+  final StreamController<Map<String, dynamic>> _messageController =
+      StreamController<Map<String, dynamic>>.broadcast();
+
+  Stream<Map<String, dynamic>> get messageStream => _messageController.stream;
+
+  ConnectionState get state => _state;
+  String? get userId => _userId;
+  String? get username => _username;
+  String? get token => _token;
+  bool get isConnected => _state == ConnectionState.connected;
+
+  String get serverUrl => _serverUrl;
+  set serverUrl(String url) {
+    _serverUrl = url;
+    notifyListeners();
+  }
+
+  @override
+  void dispose() {
+    disconnect();
+    _messageController.close();
+    super.dispose();
+  }
+
+  void init() {
+    notifyListeners();
+  }
+
+  Future<void> connect() async {
+    _state = ConnectionState.connecting;
+    notifyListeners();
+
+    try {
+      _channel = WebSocketChannel.connect(Uri.parse(_serverUrl));
+      await _channel!.ready;
+
+      _channel!.stream.listen(
+        (data) {
+          _handleMessage(data);
+        },
+        onError: (error) {
+          _state = ConnectionState.disconnected;
+          notifyListeners();
+        },
+        onDone: () {
+          _state = ConnectionState.disconnected;
+          _heartbeatTimer?.cancel();
+          notifyListeners();
+        },
+      );
+
+      _state = ConnectionState.connected;
+      _startHeartbeat();
+      notifyListeners();
+    } catch (e) {
+      _state = ConnectionState.disconnected;
+      notifyListeners();
+      rethrow;
+    }
+  }
+
+  void disconnect() {
+    _heartbeatTimer?.cancel();
+    _channel?.sink.close();
+    _channel = null;
+    _state = ConnectionState.disconnected;
+    notifyListeners();
+  }
+
+  void _startHeartbeat() {
+    _heartbeatTimer = Timer.periodic(const Duration(seconds: 30), (_) {
+      send({'op': 0});
+    });
+  }
+
+  void _handleMessage(dynamic data) {
+    try {
+      final Map<String, dynamic> packet = jsonDecode(data as String);
+      final int op = packet['op'] as int;
+
+      switch (op) {
+        case 1: // Hello
+          break;
+        case 3: // Authenticated
+          final d = packet['d'] as Map<String, dynamic>;
+          _userId = d['user_id'] as String?;
+          _username = d['username'] as String?;
+          _token = d['token'] as String?;
+          notifyListeners();
+          break;
+        case 10: // MessageCreate
+          _messageController.add(packet['d'] as Map<String, dynamic>);
+          break;
+        case 13: // Reaction
+          _messageController.add(packet['d'] as Map<String, dynamic>);
+          break;
+        case 40: // VoiceState
+          _messageController.add(packet['d'] as Map<String, dynamic>);
+          break;
+        case 60: // Typing
+          _messageController.add(packet['d'] as Map<String, dynamic>);
+          break;
+      }
+    } catch (e) {
+      debugPrint('Failed to handle message: $e');
+    }
+  }
+
+  void send(Map<String, dynamic> packet) {
+    if (_channel == null) return;
+    packet['s'] = ++_seq;
+    _channel!.sink.add(jsonEncode(packet));
+  }
+
+  void authenticate({String? token, String? username}) {
+    send({
+      'op': 2,
+      'd': {
+        if (token != null) 'token': token,
+        if (username != null) 'username': username,
+      },
+    });
+  }
+
+  void sendMessage({
+    required String channelId,
+    required Uint8List content,
+    bool encrypted = false,
+    Uint8List? nonce,
+    String messageType = 'text',
+    String? replyTo,
+  }) {
+    send({
+      'op': 10,
+      'd': {
+        'channel_id': channelId,
+        'content': content.toList(),
+        'encrypted': encrypted,
+        if (nonce != null) 'nonce': nonce.toList(),
+        'message_type': messageType,
+        if (replyTo != null) 'reply_to': replyTo,
+      },
+    });
+  }
+
+  void sendReaction(String messageId, String emoji, {bool add = true}) {
+    send({
+      'op': 13,
+      'd': {
+        'message_id': messageId,
+        'emoji': emoji,
+        'add': add,
+      },
+    });
+  }
+
+  void updateVoiceState({
+    required String guildId,
+    String? channelId,
+    bool muted = false,
+    bool deafened = false,
+  }) {
+    send({
+      'op': 40,
+      'd': {
+        'guild_id': guildId,
+        'channel_id': channelId ?? '',
+        'muted': muted,
+        'deafened': deafened,
+      },
+    });
+  }
+
+  void sendTyping(String channelId) {
+    send({
+      'op': 60,
+      'd': {'channel_id': channelId},
+    });
+  }
+}