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1 | import { Server } from 'http' | |
2 | import * as SocketIO from 'socket.io' | |
3 | import { MVideo } from '@server/types/models' | |
4 | import { UserNotificationModelForApi } from '@server/types/models/user' | |
5 | import { LiveVideoEventPayload, LiveVideoEventType } from '@shared/models' | |
6 | import { logger } from '../helpers/logger' | |
7 | import { authenticateSocket } from '../middlewares' | |
8 | import { isIdValid } from '@server/helpers/custom-validators/misc' | |
9 | ||
10 | class PeerTubeSocket { | |
11 | ||
12 | private static instance: PeerTubeSocket | |
13 | ||
14 | private userNotificationSockets: { [ userId: number ]: SocketIO.Socket[] } = {} | |
15 | private liveVideosNamespace: SocketIO.Namespace | |
16 | ||
17 | private constructor () {} | |
18 | ||
19 | init (server: Server) { | |
20 | const io = new SocketIO.Server(server) | |
21 | ||
22 | io.of('/user-notifications') | |
23 | .use(authenticateSocket) | |
24 | .on('connection', socket => { | |
25 | const userId = socket.handshake.query.user.id | |
26 | ||
27 | logger.debug('User %d connected on the notification system.', userId) | |
28 | ||
29 | if (!this.userNotificationSockets[userId]) this.userNotificationSockets[userId] = [] | |
30 | ||
31 | this.userNotificationSockets[userId].push(socket) | |
32 | ||
33 | socket.on('disconnect', () => { | |
34 | logger.debug('User %d disconnected from SocketIO notifications.', userId) | |
35 | ||
36 | this.userNotificationSockets[userId] = this.userNotificationSockets[userId].filter(s => s !== socket) | |
37 | }) | |
38 | }) | |
39 | ||
40 | this.liveVideosNamespace = io.of('/live-videos') | |
41 | .on('connection', socket => { | |
42 | socket.on('subscribe', ({ videoId }) => { | |
43 | if (!isIdValid(videoId)) return | |
44 | ||
45 | socket.join(videoId) | |
46 | }) | |
47 | ||
48 | socket.on('unsubscribe', ({ videoId }) => { | |
49 | if (!isIdValid(videoId)) return | |
50 | ||
51 | socket.leave(videoId) | |
52 | }) | |
53 | }) | |
54 | } | |
55 | ||
56 | sendNotification (userId: number, notification: UserNotificationModelForApi) { | |
57 | const sockets = this.userNotificationSockets[userId] | |
58 | if (!sockets) return | |
59 | ||
60 | logger.debug('Sending user notification to user %d.', userId) | |
61 | ||
62 | const notificationMessage = notification.toFormattedJSON() | |
63 | for (const socket of sockets) { | |
64 | socket.emit('new-notification', notificationMessage) | |
65 | } | |
66 | } | |
67 | ||
68 | sendVideoLiveNewState (video: MVideo) { | |
69 | const data: LiveVideoEventPayload = { state: video.state } | |
70 | const type: LiveVideoEventType = 'state-change' | |
71 | ||
72 | logger.debug('Sending video live new state notification of %s.', video.url, { state: video.state }) | |
73 | ||
74 | this.liveVideosNamespace | |
75 | .in(video.id) | |
76 | .emit(type, data) | |
77 | } | |
78 | ||
79 | sendVideoViewsUpdate (video: MVideo) { | |
80 | const data: LiveVideoEventPayload = { views: video.views } | |
81 | const type: LiveVideoEventType = 'views-change' | |
82 | ||
83 | logger.debug('Sending video live views update notification of %s.', video.url, { views: video.views }) | |
84 | ||
85 | this.liveVideosNamespace | |
86 | .in(video.id) | |
87 | .emit(type, data) | |
88 | } | |
89 | ||
90 | static get Instance () { | |
91 | return this.instance || (this.instance = new this()) | |
92 | } | |
93 | } | |
94 | ||
95 | // --------------------------------------------------------------------------- | |
96 | ||
97 | export { | |
98 | PeerTubeSocket | |
99 | } |