client/src/app/videos/+video-watch/video-watch.component.ts

   1 import { catchError } from 'rxjs/operators'
   2 import { ChangeDetectorRef, Component, ElementRef, Inject, LOCALE_ID, NgZone, OnDestroy, OnInit, ViewChild } from '@angular/core'
   3 import { ActivatedRoute, Router } from '@angular/router'
   4 import { RedirectService } from '@app/core/routing/redirect.service'
   5 import { peertubeLocalStorage } from '@app/shared/misc/peertube-local-storage'
   6 import { VideoSupportComponent } from '@app/videos/+video-watch/modal/video-support.component'
   7 import { MetaService } from '@ngx-meta/core'
   8 import { Notifier, ServerService } from '@app/core'
   9 import { forkJoin, Subscription } from 'rxjs'
  10 import { Hotkey, HotkeysService } from 'angular2-hotkeys'
  11 import { UserVideoRateType, VideoCaption, VideoPrivacy, VideoState } from '../../../../../shared'
  12 import { AuthService, ConfirmService } from '../../core'
  13 import { RestExtractor, VideoBlacklistService } from '../../shared'
  14 import { VideoDetails } from '../../shared/video/video-details.model'
  15 import { VideoService } from '../../shared/video/video.service'
  16 import { VideoShareComponent } from './modal/video-share.component'
  17 import { SubscribeButtonComponent } from '@app/shared/user-subscription/subscribe-button.component'
  18 import { I18n } from '@ngx-translate/i18n-polyfill'
  19 import { environment } from '../../../environments/environment'
  20 import { VideoCaptionService } from '@app/shared/video-caption'
  21 import { MarkdownService } from '@app/shared/renderer'
  22 import {
  23   P2PMediaLoaderOptions,
  24   PeertubePlayerManager,
  25   PeertubePlayerManagerOptions,
  26   PlayerMode
  27 } from '../../../assets/player/peertube-player-manager'
  28 import { VideoPlaylist } from '@app/shared/video-playlist/video-playlist.model'
  29 import { VideoPlaylistService } from '@app/shared/video-playlist/video-playlist.service'
  30 import { Video } from '@app/shared/video/video.model'
  31 import { isWebRTCDisabled } from '../../../assets/player/utils'
  32 import { VideoWatchPlaylistComponent } from '@app/videos/+video-watch/video-watch-playlist.component'
  33
  34 @Component({
  35   selector: 'my-video-watch',
  36   templateUrl: './video-watch.component.html',
  37   styleUrls: [ './video-watch.component.scss' ]
  38 })
  39 export class VideoWatchComponent implements OnInit, OnDestroy {
  40   private static LOCAL_STORAGE_PRIVACY_CONCERN_KEY = 'video-watch-privacy-concern'
  41
  42   @ViewChild('videoWatchPlaylist') videoWatchPlaylist: VideoWatchPlaylistComponent
  43   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  44   @ViewChild('videoSupportModal') videoSupportModal: VideoSupportComponent
  45   @ViewChild('subscribeButton') subscribeButton: SubscribeButtonComponent
  46
  47   player: any
  48   playerElement: HTMLVideoElement
  49   theaterEnabled = false
  50   userRating: UserVideoRateType = null
  51   video: VideoDetails = null
  52   descriptionLoading = false
  53
  54   playlist: VideoPlaylist = null
  55
  56   completeDescriptionShown = false
  57   completeVideoDescription: string
  58   shortVideoDescription: string
  59   videoHTMLDescription = ''
  60   likesBarTooltipText = ''
  61   hasAlreadyAcceptedPrivacyConcern = false
  62   remoteServerDown = false
  63   hotkeys: Hotkey[]
  64
  65   private currentTime: number
  66   private paramsSub: Subscription
  67   private queryParamsSub: Subscription
  68   private configSub: Subscription
  69
  70   constructor (
  71     private elementRef: ElementRef,
  72     private changeDetector: ChangeDetectorRef,
  73     private route: ActivatedRoute,
  74     private router: Router,
  75     private videoService: VideoService,
  76     private playlistService: VideoPlaylistService,
  77     private videoBlacklistService: VideoBlacklistService,
  78     private confirmService: ConfirmService,
  79     private metaService: MetaService,
  80     private authService: AuthService,
  81     private serverService: ServerService,
  82     private restExtractor: RestExtractor,
  83     private notifier: Notifier,
  84     private markdownService: MarkdownService,
  85     private zone: NgZone,
  86     private redirectService: RedirectService,
  87     private videoCaptionService: VideoCaptionService,
  88     private i18n: I18n,
  89     private hotkeysService: HotkeysService,
  90     @Inject(LOCALE_ID) private localeId: string
  91   ) {}
  92
  93   get user () {
  94     return this.authService.getUser()
  95   }
  96
  97   ngOnInit () {
  98     this.configSub = this.serverService.configLoaded
  99         .subscribe(() => {
 100           if (
 101             isWebRTCDisabled() ||
 102             this.serverService.getConfig().tracker.enabled === false ||
 103             peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
 104           ) {
 105             this.hasAlreadyAcceptedPrivacyConcern = true
 106           }
 107         })
 108
 109     this.paramsSub = this.route.params.subscribe(routeParams => {
 110       const videoId = routeParams[ 'videoId' ]
 111       if (videoId) this.loadVideo(videoId)
 112
 113       const playlistId = routeParams[ 'playlistId' ]
 114       if (playlistId) this.loadPlaylist(playlistId)
 115     })
 116
 117     this.queryParamsSub = this.route.queryParams.subscribe(queryParams => {
 118       const videoId = queryParams[ 'videoId' ]
 119       if (videoId) this.loadVideo(videoId)
 120     })
 121
 122     this.initHotkeys()
 123   }
 124
 125   ngOnDestroy () {
 126     this.flushPlayer()
 127
 128     // Unsubscribe subscriptions
 129     if (this.paramsSub) this.paramsSub.unsubscribe()
 130     if (this.queryParamsSub) this.queryParamsSub.unsubscribe()
 131
 132     // Unbind hotkeys
 133     if (this.isUserLoggedIn()) this.hotkeysService.remove(this.hotkeys)
 134   }
 135
 136   setLike () {
 137     if (this.isUserLoggedIn() === false) return
 138     if (this.userRating === 'like') {
 139       // Already liked this video
 140       this.setRating('none')
 141     } else {
 142       this.setRating('like')
 143     }
 144   }
 145
 146   setDislike () {
 147     if (this.isUserLoggedIn() === false) return
 148     if (this.userRating === 'dislike') {
 149       // Already disliked this video
 150       this.setRating('none')
 151     } else {
 152       this.setRating('dislike')
 153     }
 154   }
 155
 156   showMoreDescription () {
 157     if (this.completeVideoDescription === undefined) {
 158       return this.loadCompleteDescription()
 159     }
 160
 161     this.updateVideoDescription(this.completeVideoDescription)
 162     this.completeDescriptionShown = true
 163   }
 164
 165   showLessDescription () {
 166     this.updateVideoDescription(this.shortVideoDescription)
 167     this.completeDescriptionShown = false
 168   }
 169
 170   loadCompleteDescription () {
 171     this.descriptionLoading = true
 172
 173     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 174         .subscribe(
 175           description => {
 176             this.completeDescriptionShown = true
 177             this.descriptionLoading = false
 178
 179             this.shortVideoDescription = this.video.description
 180             this.completeVideoDescription = description
 181
 182             this.updateVideoDescription(this.completeVideoDescription)
 183           },
 184
 185           error => {
 186             this.descriptionLoading = false
 187             this.notifier.error(error.message)
 188           }
 189         )
 190   }
 191
 192   showSupportModal () {
 193     this.videoSupportModal.show()
 194   }
 195
 196   showShareModal () {
 197     this.videoShareModal.show(this.currentTime)
 198   }
 199
 200   isUserLoggedIn () {
 201     return this.authService.isLoggedIn()
 202   }
 203
 204   getVideoTags () {
 205     if (!this.video || Array.isArray(this.video.tags) === false) return []
 206
 207     return this.video.tags
 208   }
 209
 210   onVideoRemoved () {
 211     this.redirectService.redirectToHomepage()
 212   }
 213
 214   acceptedPrivacyConcern () {
 215     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 216     this.hasAlreadyAcceptedPrivacyConcern = true
 217   }
 218
 219   isVideoToTranscode () {
 220     return this.video && this.video.state.id === VideoState.TO_TRANSCODE
 221   }
 222
 223   isVideoToImport () {
 224     return this.video && this.video.state.id === VideoState.TO_IMPORT
 225   }
 226
 227   hasVideoScheduledPublication () {
 228     return this.video && this.video.scheduledUpdate !== undefined
 229   }
 230
 231   isVideoBlur (video: Video) {
 232     return video.isVideoNSFWForUser(this.user, this.serverService.getConfig())
 233   }
 234
 235   private loadVideo (videoId: string) {
 236     // Video did not change
 237     if (this.video && this.video.uuid === videoId) return
 238
 239     if (this.player) this.player.pause()
 240
 241     // Video did change
 242     forkJoin(
 243       this.videoService.getVideo(videoId),
 244       this.videoCaptionService.listCaptions(videoId)
 245     )
 246       .pipe(
 247         // If 401, the video is private or blacklisted so redirect to 404
 248         catchError(err => this.restExtractor.redirectTo404IfNotFound(err, [ 400, 401, 403, 404 ]))
 249       )
 250       .subscribe(([ video, captionsResult ]) => {
 251         const queryParams = this.route.snapshot.queryParams
 252         const startTime = queryParams.start
 253         const stopTime = queryParams.stop
 254         const subtitle = queryParams.subtitle
 255         const playerMode = queryParams.mode
 256
 257         this.onVideoFetched(video, captionsResult.data, { startTime, stopTime, subtitle, playerMode })
 258             .catch(err => this.handleError(err))
 259       })
 260   }
 261
 262   private loadPlaylist (playlistId: string) {
 263     // Playlist did not change
 264     if (this.playlist && this.playlist.uuid === playlistId) return
 265
 266     this.playlistService.getVideoPlaylist(playlistId)
 267       .pipe(
 268         // If 401, the video is private or blacklisted so redirect to 404
 269         catchError(err => this.restExtractor.redirectTo404IfNotFound(err, [ 400, 401, 403, 404 ]))
 270       )
 271       .subscribe(playlist => {
 272         this.playlist = playlist
 273
 274         const videoId = this.route.snapshot.queryParams['videoId']
 275         this.videoWatchPlaylist.loadPlaylistElements(playlist, !videoId)
 276       })
 277   }
 278
 279   private updateVideoDescription (description: string) {
 280     this.video.description = description
 281     this.setVideoDescriptionHTML()
 282   }
 283
 284   private async setVideoDescriptionHTML () {
 285     this.videoHTMLDescription = await this.markdownService.textMarkdownToHTML(this.video.description)
 286   }
 287
 288   private setVideoLikesBarTooltipText () {
 289     this.likesBarTooltipText = this.i18n('{{likesNumber}} likes / {{dislikesNumber}} dislikes', {
 290       likesNumber: this.video.likes,
 291       dislikesNumber: this.video.dislikes
 292     })
 293   }
 294
 295   private handleError (err: any) {
 296     const errorMessage: string = typeof err === 'string' ? err : err.message
 297     if (!errorMessage) return
 298
 299     // Display a message in the video player instead of a notification
 300     if (errorMessage.indexOf('from xs param') !== -1) {
 301       this.flushPlayer()
 302       this.remoteServerDown = true
 303       this.changeDetector.detectChanges()
 304
 305       return
 306     }
 307
 308     this.notifier.error(errorMessage)
 309   }
 310
 311   private checkUserRating () {
 312     // Unlogged users do not have ratings
 313     if (this.isUserLoggedIn() === false) return
 314
 315     this.videoService.getUserVideoRating(this.video.id)
 316         .subscribe(
 317           ratingObject => {
 318             if (ratingObject) {
 319               this.userRating = ratingObject.rating
 320             }
 321           },
 322
 323           err => this.notifier.error(err.message)
 324         )
 325   }
 326
 327   private async onVideoFetched (
 328     video: VideoDetails,
 329     videoCaptions: VideoCaption[],
 330     urlOptions: { startTime?: number, stopTime?: number, subtitle?: string, playerMode?: string }
 331   ) {
 332     this.video = video
 333
 334     // Re init attributes
 335     this.descriptionLoading = false
 336     this.completeDescriptionShown = false
 337     this.remoteServerDown = false
 338     this.currentTime = undefined
 339
 340     this.videoWatchPlaylist.updatePlaylistIndex(video)
 341
 342     let startTime = urlOptions.startTime || (this.video.userHistory ? this.video.userHistory.currentTime : 0)
 343     // If we are at the end of the video, reset the timer
 344     if (this.video.duration - startTime <= 1) startTime = 0
 345
 346     if (this.isVideoBlur(this.video)) {
 347       const res = await this.confirmService.confirm(
 348         this.i18n('This video contains mature or explicit content. Are you sure you want to watch it?'),
 349         this.i18n('Mature or explicit content')
 350       )
 351       if (res === false) return this.redirectService.redirectToHomepage()
 352     }
 353
 354     // Flush old player if needed
 355     this.flushPlayer()
 356
 357     // Build video element, because videojs remove it on dispose
 358     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#videojs-wrapper')
 359     this.playerElement = document.createElement('video')
 360     this.playerElement.className = 'video-js vjs-peertube-skin'
 361     this.playerElement.setAttribute('playsinline', 'true')
 362     playerElementWrapper.appendChild(this.playerElement)
 363
 364     const playerCaptions = videoCaptions.map(c => ({
 365       label: c.language.label,
 366       language: c.language.id,
 367       src: environment.apiUrl + c.captionPath
 368     }))
 369
 370     const options: PeertubePlayerManagerOptions = {
 371       common: {
 372         autoplay: this.isAutoplay(),
 373
 374         playerElement: this.playerElement,
 375         onPlayerElementChange: (element: HTMLVideoElement) => this.playerElement = element,
 376
 377         videoDuration: this.video.duration,
 378         enableHotkeys: true,
 379         inactivityTimeout: 2500,
 380         poster: this.video.previewUrl,
 381         startTime,
 382         stopTime: urlOptions.stopTime,
 383
 384         theaterMode: true,
 385         captions: videoCaptions.length !== 0,
 386         peertubeLink: false,
 387
 388         videoViewUrl: this.video.privacy.id !== VideoPrivacy.PRIVATE ? this.videoService.getVideoViewUrl(this.video.uuid) : null,
 389         embedUrl: this.video.embedUrl,
 390
 391         language: this.localeId,
 392
 393         subtitle: urlOptions.subtitle,
 394
 395         userWatching: this.user && this.user.videosHistoryEnabled === true ? {
 396           url: this.videoService.getUserWatchingVideoUrl(this.video.uuid),
 397           authorizationHeader: this.authService.getRequestHeaderValue()
 398         } : undefined,
 399
 400         serverUrl: environment.apiUrl,
 401
 402         videoCaptions: playerCaptions
 403       },
 404
 405       webtorrent: {
 406         videoFiles: this.video.files
 407       }
 408     }
 409
 410     let mode: PlayerMode
 411
 412     if (urlOptions.playerMode) {
 413       if (urlOptions.playerMode === 'p2p-media-loader') mode = 'p2p-media-loader'
 414       else mode = 'webtorrent'
 415     } else {
 416       if (this.video.hasHlsPlaylist()) mode = 'p2p-media-loader'
 417       else mode = 'webtorrent'
 418     }
 419
 420     if (mode === 'p2p-media-loader') {
 421       const hlsPlaylist = this.video.getHlsPlaylist()
 422
 423       const p2pMediaLoader = {
 424         playlistUrl: hlsPlaylist.playlistUrl,
 425         segmentsSha256Url: hlsPlaylist.segmentsSha256Url,
 426         redundancyBaseUrls: hlsPlaylist.redundancies.map(r => r.baseUrl),
 427         trackerAnnounce: this.video.trackerUrls,
 428         videoFiles: this.video.files
 429       } as P2PMediaLoaderOptions
 430
 431       Object.assign(options, { p2pMediaLoader })
 432     }
 433
 434     this.zone.runOutsideAngular(async () => {
 435       this.player = await PeertubePlayerManager.initialize(mode, options)
 436       this.theaterEnabled = this.player.theaterEnabled
 437
 438       this.player.on('customError', ({ err }: { err: any }) => this.handleError(err))
 439
 440       this.player.on('timeupdate', () => {
 441         this.currentTime = Math.floor(this.player.currentTime())
 442       })
 443
 444       this.player.one('ended', () => {
 445         if (this.playlist) {
 446           this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 447         }
 448       })
 449
 450       this.player.one('stopped', () => {
 451         if (this.playlist) {
 452           this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 453         }
 454       })
 455
 456       this.player.on('theaterChange', (_: any, enabled: boolean) => {
 457         this.zone.run(() => this.theaterEnabled = enabled)
 458       })
 459     })
 460
 461     this.setVideoDescriptionHTML()
 462     this.setVideoLikesBarTooltipText()
 463
 464     this.setOpenGraphTags()
 465     this.checkUserRating()
 466   }
 467
 468   private setRating (nextRating: UserVideoRateType) {
 469     let method
 470     switch (nextRating) {
 471       case 'like':
 472         method = this.videoService.setVideoLike
 473         break
 474       case 'dislike':
 475         method = this.videoService.setVideoDislike
 476         break
 477       case 'none':
 478         method = this.videoService.unsetVideoLike
 479         break
 480     }
 481
 482     method.call(this.videoService, this.video.id)
 483           .subscribe(
 484             () => {
 485               // Update the video like attribute
 486               this.updateVideoRating(this.userRating, nextRating)
 487               this.userRating = nextRating
 488             },
 489
 490             (err: { message: string }) => this.notifier.error(err.message)
 491           )
 492   }
 493
 494   private updateVideoRating (oldRating: UserVideoRateType, newRating: UserVideoRateType) {
 495     let likesToIncrement = 0
 496     let dislikesToIncrement = 0
 497
 498     if (oldRating) {
 499       if (oldRating === 'like') likesToIncrement--
 500       if (oldRating === 'dislike') dislikesToIncrement--
 501     }
 502
 503     if (newRating === 'like') likesToIncrement++
 504     if (newRating === 'dislike') dislikesToIncrement++
 505
 506     this.video.likes += likesToIncrement
 507     this.video.dislikes += dislikesToIncrement
 508
 509     this.video.buildLikeAndDislikePercents()
 510     this.setVideoLikesBarTooltipText()
 511   }
 512
 513   private setOpenGraphTags () {
 514     this.metaService.setTitle(this.video.name)
 515
 516     this.metaService.setTag('og:type', 'video')
 517
 518     this.metaService.setTag('og:title', this.video.name)
 519     this.metaService.setTag('name', this.video.name)
 520
 521     this.metaService.setTag('og:description', this.video.description)
 522     this.metaService.setTag('description', this.video.description)
 523
 524     this.metaService.setTag('og:image', this.video.previewPath)
 525
 526     this.metaService.setTag('og:duration', this.video.duration.toString())
 527
 528     this.metaService.setTag('og:site_name', 'PeerTube')
 529
 530     this.metaService.setTag('og:url', window.location.href)
 531     this.metaService.setTag('url', window.location.href)
 532   }
 533
 534   private isAutoplay () {
 535     // We'll jump to the thread id, so do not play the video
 536     if (this.route.snapshot.params['threadId']) return false
 537
 538     // Otherwise true by default
 539     if (!this.user) return true
 540
 541     // Be sure the autoPlay is set to false
 542     return this.user.autoPlayVideo !== false
 543   }
 544
 545   private flushPlayer () {
 546     // Remove player if it exists
 547     if (this.player) {
 548       try {
 549         this.player.dispose()
 550         this.player = undefined
 551       } catch (err) {
 552         console.error('Cannot dispose player.', err)
 553       }
 554     }
 555   }
 556
 557   private initHotkeys () {
 558     this.hotkeys = [
 559       new Hotkey('shift+l', (event: KeyboardEvent): boolean => {
 560         this.setLike()
 561         return false
 562       }, undefined, this.i18n('Like the video')),
 563       new Hotkey('shift+d', (event: KeyboardEvent): boolean => {
 564         this.setDislike()
 565         return false
 566       }, undefined, this.i18n('Dislike the video')),
 567       new Hotkey('shift+s', (event: KeyboardEvent): boolean => {
 568         this.subscribeButton.subscribed ?
 569           this.subscribeButton.unsubscribe() :
 570           this.subscribeButton.subscribe()
 571         return false
 572       }, undefined, this.i18n('Subscribe to the account'))
 573     ]
 574     if (this.isUserLoggedIn()) this.hotkeysService.add(this.hotkeys)
 575   }
 576 }