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peertube/server/lib/peertube-socket.ts
Chocobozzz 51353d9a03 Refactor video views
Introduce viewers attribute for live videos
Count views for live videos
Reduce delay to see the viewer update for lives
Add ability to configure video views buffer interval and view ip
expiration
2021-11-09 15:00:31 +01:00

101 lines
3.2 KiB
TypeScript

import { Server as HTTPServer } from 'http'
import { Namespace, Server as SocketServer, Socket } from 'socket.io'
import { isIdValid } from '@server/helpers/custom-validators/misc'
import { MVideo, MVideoImmutable } from '@server/types/models'
import { UserNotificationModelForApi } from '@server/types/models/user'
import { LiveVideoEventPayload, LiveVideoEventType } from '@shared/models'
import { logger } from '../helpers/logger'
import { authenticateSocket } from '../middlewares'
class PeerTubeSocket {
private static instance: PeerTubeSocket
private userNotificationSockets: { [ userId: number ]: Socket[] } = {}
private liveVideosNamespace: Namespace
private constructor () {}
init (server: HTTPServer) {
const io = new SocketServer(server)
io.of('/user-notifications')
.use(authenticateSocket)
.on('connection', socket => {
const userId = socket.handshake.auth.user.id
logger.debug('User %d connected on the notification system.', userId)
if (!this.userNotificationSockets[userId]) this.userNotificationSockets[userId] = []
this.userNotificationSockets[userId].push(socket)
socket.on('disconnect', () => {
logger.debug('User %d disconnected from SocketIO notifications.', userId)
this.userNotificationSockets[userId] = this.userNotificationSockets[userId].filter(s => s !== socket)
})
})
this.liveVideosNamespace = io.of('/live-videos')
.on('connection', socket => {
socket.on('subscribe', ({ videoId }) => {
if (!isIdValid(videoId)) return
/* eslint-disable @typescript-eslint/no-floating-promises */
socket.join(videoId)
})
socket.on('unsubscribe', ({ videoId }) => {
if (!isIdValid(videoId)) return
/* eslint-disable @typescript-eslint/no-floating-promises */
socket.leave(videoId)
})
})
}
sendNotification (userId: number, notification: UserNotificationModelForApi) {
const sockets = this.userNotificationSockets[userId]
if (!sockets) return
logger.debug('Sending user notification to user %d.', userId)
const notificationMessage = notification.toFormattedJSON()
for (const socket of sockets) {
socket.emit('new-notification', notificationMessage)
}
}
sendVideoLiveNewState (video: MVideo) {
const data: LiveVideoEventPayload = { state: video.state }
const type: LiveVideoEventType = 'state-change'
logger.debug('Sending video live new state notification of %s.', video.url, { state: video.state })
this.liveVideosNamespace
.in(video.id)
.emit(type, data)
}
sendVideoViewsUpdate (video: MVideoImmutable, numViewers: number) {
const data: LiveVideoEventPayload = { viewers: numViewers, views: numViewers }
const type: LiveVideoEventType = 'views-change'
logger.debug('Sending video live views update notification of %s.', video.url, { viewers: numViewers })
this.liveVideosNamespace
.in(video.id)
.emit(type, data)
}
static get Instance () {
return this.instance || (this.instance = new this())
}
}
// ---------------------------------------------------------------------------
export {
PeerTubeSocket
}