537 lines
17 KiB
JavaScript
537 lines
17 KiB
JavaScript
// Next.js 自定义服务器 + Socket.IO
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const { createServer } = require('http');
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const { parse } = require('url');
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const next = require('next');
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const { Server } = require('socket.io');
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const dev = process.env.NODE_ENV !== 'production';
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const hostname = process.env.HOSTNAME || '0.0.0.0';
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const port = parseInt(process.env.PORT || '3000', 10);
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const app = next({ dev, hostname, port });
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const handle = app.getRequestHandler();
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// 读取观影室配置的辅助函数
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async function getWatchRoomConfig() {
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// 观影室配置现在统一从环境变量读取
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const config = {
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enabled: process.env.WATCH_ROOM_ENABLED === 'true',
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serverType: (process.env.WATCH_ROOM_SERVER_TYPE || 'internal'),
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externalServerUrl: process.env.WATCH_ROOM_EXTERNAL_SERVER_URL,
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externalServerAuth: process.env.WATCH_ROOM_EXTERNAL_SERVER_AUTH,
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};
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console.log(`[WatchRoom] Watch room ${config.enabled ? 'enabled' : 'disabled'} via environment variable.`);
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return config;
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}
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// 观影室服务器类
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class WatchRoomServer {
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constructor(io) {
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this.io = io;
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this.rooms = new Map();
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this.members = new Map();
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this.socketToRoom = new Map();
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this.roomDeletionTimers = new Map(); // 房间延迟删除定时器
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this.cleanupInterval = null;
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this.setupEventHandlers();
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this.startCleanupTimer();
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}
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setupEventHandlers() {
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this.io.on('connection', (socket) => {
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console.log(`[WatchRoom] Client connected: ${socket.id}`);
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// 创建房间
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socket.on('room:create', (data, callback) => {
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try {
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const roomId = this.generateRoomId();
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const userId = socket.id;
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const ownerToken = this.generateRoomId(); // 生成房主令牌
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const room = {
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id: roomId,
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name: data.name,
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description: data.description,
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password: data.password,
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isPublic: data.isPublic,
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ownerId: userId,
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ownerName: data.userName,
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ownerToken: ownerToken, // 保存房主令牌
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memberCount: 1,
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currentState: null,
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createdAt: Date.now(),
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lastOwnerHeartbeat: Date.now(),
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};
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const member = {
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id: userId,
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name: data.userName,
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isOwner: true,
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lastHeartbeat: Date.now(),
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};
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this.rooms.set(roomId, room);
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this.members.set(roomId, new Map([[userId, member]]));
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this.socketToRoom.set(socket.id, {
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roomId,
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userId,
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userName: data.userName,
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isOwner: true,
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});
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socket.join(roomId);
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console.log(`[WatchRoom] Room created: ${roomId} by ${data.userName}`);
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callback({ success: true, room });
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} catch (error) {
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console.error('[WatchRoom] Error creating room:', error);
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callback({ success: false, error: '创建房间失败' });
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}
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});
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// 加入房间
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socket.on('room:join', (data, callback) => {
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try {
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const room = this.rooms.get(data.roomId);
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if (!room) {
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return callback({ success: false, error: '房间不存在' });
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}
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if (room.password && room.password !== data.password) {
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return callback({ success: false, error: '密码错误' });
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}
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const userId = socket.id;
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let isOwner = false;
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// 检查是否是房主重连（通过 ownerToken 验证）
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if (data.ownerToken && data.ownerToken === room.ownerToken) {
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isOwner = true;
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// 更新房主的 socket.id
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room.ownerId = userId;
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room.lastOwnerHeartbeat = Date.now();
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this.rooms.set(data.roomId, room);
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console.log(`[WatchRoom] Owner ${data.userName} reconnected to room ${data.roomId}`);
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}
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// 取消房间的删除定时器（如果有人重连）
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if (this.roomDeletionTimers.has(data.roomId)) {
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console.log(`[WatchRoom] Cancelling deletion timer for room ${data.roomId}`);
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clearTimeout(this.roomDeletionTimers.get(data.roomId));
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this.roomDeletionTimers.delete(data.roomId);
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}
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const member = {
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id: userId,
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name: data.userName,
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isOwner: isOwner,
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lastHeartbeat: Date.now(),
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};
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const roomMembers = this.members.get(data.roomId);
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if (roomMembers) {
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roomMembers.set(userId, member);
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room.memberCount = roomMembers.size;
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this.rooms.set(data.roomId, room);
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}
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this.socketToRoom.set(socket.id, {
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roomId: data.roomId,
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userId,
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userName: data.userName,
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isOwner: isOwner,
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});
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socket.join(data.roomId);
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socket.to(data.roomId).emit('room:member-joined', member);
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console.log(`[WatchRoom] User ${data.userName} joined room ${data.roomId}${isOwner ? ' (as owner)' : ''}`);
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const members = Array.from(roomMembers?.values() || []);
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callback({ success: true, room, members });
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} catch (error) {
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console.error('[WatchRoom] Error joining room:', error);
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callback({ success: false, error: '加入房间失败' });
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}
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});
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// 离开房间
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socket.on('room:leave', () => {
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this.handleLeaveRoom(socket);
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});
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// 获取房间列表
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socket.on('room:list', (callback) => {
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const publicRooms = Array.from(this.rooms.values()).filter((room) => room.isPublic);
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callback(publicRooms);
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});
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// 播放状态更新（任何成员都可以触发同步）
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socket.on('play:update', (state) => {
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console.log(`[WatchRoom] Received play:update from ${socket.id}:`, state);
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const roomInfo = this.socketToRoom.get(socket.id);
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if (!roomInfo) {
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console.log('[WatchRoom] No room info for socket, ignoring play:update');
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return;
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}
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const room = this.rooms.get(roomInfo.roomId);
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if (room) {
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room.currentState = state;
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this.rooms.set(roomInfo.roomId, room);
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console.log(`[WatchRoom] Broadcasting play:update to room ${roomInfo.roomId} from ${roomInfo.userName}`);
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socket.to(roomInfo.roomId).emit('play:update', state);
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} else {
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console.log('[WatchRoom] Room not found for play:update');
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}
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});
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// 播放进度跳转
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socket.on('play:seek', (currentTime) => {
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console.log(`[WatchRoom] Received play:seek from ${socket.id}:`, currentTime);
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const roomInfo = this.socketToRoom.get(socket.id);
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if (!roomInfo) {
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console.log('[WatchRoom] No room info for socket, ignoring play:seek');
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return;
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}
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console.log(`[WatchRoom] Broadcasting play:seek to room ${roomInfo.roomId}`);
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socket.to(roomInfo.roomId).emit('play:seek', currentTime);
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});
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// 播放
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socket.on('play:play', () => {
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console.log(`[WatchRoom] Received play:play from ${socket.id}`);
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const roomInfo = this.socketToRoom.get(socket.id);
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if (!roomInfo) {
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console.log('[WatchRoom] No room info for socket, ignoring play:play');
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return;
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}
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console.log(`[WatchRoom] Broadcasting play:play to room ${roomInfo.roomId}`);
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socket.to(roomInfo.roomId).emit('play:play');
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});
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// 暂停
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socket.on('play:pause', () => {
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console.log(`[WatchRoom] Received play:pause from ${socket.id}`);
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const roomInfo = this.socketToRoom.get(socket.id);
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if (!roomInfo) {
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console.log('[WatchRoom] No room info for socket, ignoring play:pause');
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return;
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}
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console.log(`[WatchRoom] Broadcasting play:pause to room ${roomInfo.roomId}`);
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socket.to(roomInfo.roomId).emit('play:pause');
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});
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// 切换视频/集数
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socket.on('play:change', (state) => {
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console.log(`[WatchRoom] Received play:change from ${socket.id}:`, state);
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const roomInfo = this.socketToRoom.get(socket.id);
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if (!roomInfo) {
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console.log('[WatchRoom] No room info for socket, ignoring play:change');
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return;
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}
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if (!roomInfo.isOwner) {
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console.log('[WatchRoom] User is not owner, ignoring play:change');
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return;
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}
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const room = this.rooms.get(roomInfo.roomId);
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if (room) {
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room.currentState = state;
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this.rooms.set(roomInfo.roomId, room);
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console.log(`[WatchRoom] Broadcasting play:change to room ${roomInfo.roomId}`);
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socket.to(roomInfo.roomId).emit('play:change', state);
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} else {
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console.log('[WatchRoom] Room not found for play:change');
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}
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});
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// 切换直播频道
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socket.on('live:change', (state) => {
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const roomInfo = this.socketToRoom.get(socket.id);
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if (!roomInfo || !roomInfo.isOwner) return;
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const room = this.rooms.get(roomInfo.roomId);
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if (room) {
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room.currentState = state;
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this.rooms.set(roomInfo.roomId, room);
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socket.to(roomInfo.roomId).emit('live:change', state);
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}
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});
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// 聊天消息
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socket.on('chat:message', (data) => {
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const roomInfo = this.socketToRoom.get(socket.id);
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if (!roomInfo) return;
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const message = {
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id: this.generateMessageId(),
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userId: roomInfo.userId,
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userName: roomInfo.userName,
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content: data.content,
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type: data.type,
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timestamp: Date.now(),
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};
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this.io.to(roomInfo.roomId).emit('chat:message', message);
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});
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// WebRTC 信令
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socket.on('voice:offer', (data) => {
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const roomInfo = this.socketToRoom.get(socket.id);
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if (!roomInfo) return;
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this.io.to(data.targetUserId).emit('voice:offer', {
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userId: socket.id,
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offer: data.offer,
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});
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});
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socket.on('voice:answer', (data) => {
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const roomInfo = this.socketToRoom.get(socket.id);
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if (!roomInfo) return;
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this.io.to(data.targetUserId).emit('voice:answer', {
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userId: socket.id,
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answer: data.answer,
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});
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});
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socket.on('voice:ice', (data) => {
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const roomInfo = this.socketToRoom.get(socket.id);
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if (!roomInfo) return;
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this.io.to(data.targetUserId).emit('voice:ice', {
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userId: socket.id,
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candidate: data.candidate,
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});
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});
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// 心跳
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socket.on('heartbeat', () => {
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const roomInfo = this.socketToRoom.get(socket.id);
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if (!roomInfo) return;
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const roomMembers = this.members.get(roomInfo.roomId);
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const member = roomMembers?.get(roomInfo.userId);
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if (member) {
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member.lastHeartbeat = Date.now();
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roomMembers?.set(roomInfo.userId, member);
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}
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if (roomInfo.isOwner) {
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const room = this.rooms.get(roomInfo.roomId);
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if (room) {
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room.lastOwnerHeartbeat = Date.now();
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this.rooms.set(roomInfo.roomId, room);
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}
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}
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});
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// 断开连接
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socket.on('disconnect', () => {
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console.log(`[WatchRoom] Client disconnected: ${socket.id}`);
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this.handleLeaveRoom(socket);
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});
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});
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}
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handleLeaveRoom(socket) {
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const roomInfo = this.socketToRoom.get(socket.id);
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if (!roomInfo) return;
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const { roomId, userId, isOwner } = roomInfo;
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const room = this.rooms.get(roomId);
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const roomMembers = this.members.get(roomId);
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if (roomMembers) {
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roomMembers.delete(userId);
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if (room) {
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room.memberCount = roomMembers.size;
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this.rooms.set(roomId, room);
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}
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socket.to(roomId).emit('room:member-left', userId);
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// 如果是房主主动离开，解散房间并踢出所有成员
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if (isOwner) {
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console.log(`[WatchRoom] Owner actively left room ${roomId}, disbanding room`);
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// 通知所有成员房间被解散
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socket.to(roomId).emit('room:deleted', { reason: 'owner_left' });
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// 强制所有成员离开房间
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const members = Array.from(roomMembers.keys());
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members.forEach(memberId => {
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this.socketToRoom.delete(memberId);
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});
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// 立即删除房间（跳过通知，因为上面已经发送了）
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this.deleteRoom(roomId, true);
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// 清除可能存在的删除定时器
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if (this.roomDeletionTimers.has(roomId)) {
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clearTimeout(this.roomDeletionTimers.get(roomId));
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this.roomDeletionTimers.delete(roomId);
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}
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} else {
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// 普通成员离开，房间为空时延迟删除
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if (roomMembers.size === 0) {
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console.log(`[WatchRoom] Room ${roomId} is now empty, will delete in 30 seconds if no one rejoins`);
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const deletionTimer = setTimeout(() => {
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// 再次检查房间是否仍然为空
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const currentRoomMembers = this.members.get(roomId);
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if (currentRoomMembers && currentRoomMembers.size === 0) {
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console.log(`[WatchRoom] Room ${roomId} deletion timer expired, deleting room`);
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this.deleteRoom(roomId);
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this.roomDeletionTimers.delete(roomId);
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}
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}, 30000); // 30秒后删除
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this.roomDeletionTimers.set(roomId, deletionTimer);
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}
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}
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}
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socket.leave(roomId);
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this.socketToRoom.delete(socket.id);
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}
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deleteRoom(roomId, skipNotify = false) {
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console.log(`[WatchRoom] Deleting room ${roomId}`);
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// 如果不跳过通知，则发送 room:deleted 事件
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if (!skipNotify) {
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this.io.to(roomId).emit('room:deleted');
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}
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this.rooms.delete(roomId);
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this.members.delete(roomId);
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}
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startCleanupTimer() {
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this.cleanupInterval = setInterval(() => {
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const now = Date.now();
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const deleteTimeout = 5 * 60 * 1000; // 5分钟 - 删除房间
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const clearStateTimeout = 30 * 1000; // 30秒 - 清除播放状态
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for (const [roomId, room] of this.rooms.entries()) {
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const timeSinceHeartbeat = now - room.lastOwnerHeartbeat;
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// 如果房主心跳超过30秒，清除播放状态
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if (timeSinceHeartbeat > clearStateTimeout && room.currentState !== null) {
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console.log(`[WatchRoom] Room ${roomId} owner inactive for 30s, clearing play state`);
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room.currentState = null;
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this.rooms.set(roomId, room);
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// 通知房间内所有成员状态已清除
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this.io.to(roomId).emit('state:cleared');
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}
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// 检查房主是否超时5分钟 - 删除房间
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if (timeSinceHeartbeat > deleteTimeout) {
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console.log(`[WatchRoom] Room ${roomId} owner timeout, deleting...`);
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this.deleteRoom(roomId);
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}
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}
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}, 10000); // 每10秒检查一次，确保更及时的清理
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}
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generateRoomId() {
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return Math.random().toString(36).substring(2, 8).toUpperCase();
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}
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generateMessageId() {
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return `${Date.now()}-${Math.random().toString(36).substring(2, 9)}`;
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}
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destroy() {
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if (this.cleanupInterval) {
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clearInterval(this.cleanupInterval);
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}
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// 清理所有房间删除定时器
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for (const timer of this.roomDeletionTimers.values()) {
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clearTimeout(timer);
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}
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this.roomDeletionTimers.clear();
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}
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}
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app.prepare().then(async () => {
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const httpServer = createServer(async (req, res) => {
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try {
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const parsedUrl = parse(req.url, true);
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await handle(req, res, parsedUrl);
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} catch (err) {
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console.error('Error occurred handling', req.url, err);
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res.statusCode = 500;
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res.end('Internal server error');
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}
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});
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// 读取观影室配置
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const watchRoomConfig = await getWatchRoomConfig();
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console.log('[WatchRoom] Config:', watchRoomConfig);
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let watchRoomServer = null;
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// 只在启用观影室且使用内部服务器时初始化 Socket.IO
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if (watchRoomConfig.enabled && watchRoomConfig.serverType === 'internal') {
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console.log('[WatchRoom] Initializing Socket.IO server...');
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// 初始化 Socket.IO
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const io = new Server(httpServer, {
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path: '/socket.io',
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cors: {
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origin: '*',
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methods: ['GET', 'POST'],
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},
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});
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// 初始化观影室服务器
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watchRoomServer = new WatchRoomServer(io);
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console.log('[WatchRoom] Socket.IO server initialized');
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} else {
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if (!watchRoomConfig.enabled) {
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console.log('[WatchRoom] Watch room is disabled');
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||
} else if (watchRoomConfig.serverType === 'external') {
|
||
console.log('[WatchRoom] Using external watch room server');
|
||
}
|
||
}
|
||
|
||
httpServer
|
||
.once('error', (err) => {
|
||
console.error(err);
|
||
process.exit(1);
|
||
})
|
||
.listen(port, () => {
|
||
console.log(`> Ready on http://${hostname}:${port}`);
|
||
if (watchRoomConfig.enabled && watchRoomConfig.serverType === 'internal') {
|
||
console.log(`> Socket.IO ready on ws://${hostname}:${port}`);
|
||
}
|
||
});
|
||
|
||
// 优雅关闭
|
||
process.on('SIGINT', () => {
|
||
console.log('\n[Server] Shutting down...');
|
||
if (watchRoomServer) {
|
||
watchRoomServer.destroy();
|
||
}
|
||
httpServer.close(() => {
|
||
console.log('[Server] Server closed');
|
||
process.exit(0);
|
||
});
|
||
});
|
||
|
||
process.on('SIGTERM', () => {
|
||
console.log('\n[Server] Shutting down...');
|
||
if (watchRoomServer) {
|
||
watchRoomServer.destroy();
|
||
}
|
||
httpServer.close(() => {
|
||
console.log('[Server] Server closed');
|
||
process.exit(0);
|
||
});
|
||
});
|
||
});
|