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, Observable, 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   CustomizationOptions,
  24   P2PMediaLoaderOptions,
  25   PeertubePlayerManager,
  26   PeertubePlayerManagerOptions,
  27   PlayerMode
  28 } from '../../../assets/player/peertube-player-manager'
  29 import { VideoPlaylist } from '@app/shared/video-playlist/video-playlist.model'
  30 import { VideoPlaylistService } from '@app/shared/video-playlist/video-playlist.service'
  31 import { Video } from '@app/shared/video/video.model'
  32 import { isWebRTCDisabled, timeToInt } from '../../../assets/player/utils'
  33 import { VideoWatchPlaylistComponent } from '@app/videos/+video-watch/video-watch-playlist.component'
  34 import { getStoredTheater } from '../../../assets/player/peertube-player-local-storage'
  35 import { PluginService } from '@app/core/plugins/plugin.service'
  36 import { HooksService } from '@app/core/plugins/hooks.service'
  37 import { PlatformLocation } from '@angular/common'
  38 import { randomInt } from '@shared/core-utils/miscs/miscs'
  39
  40 @Component({
  41   selector: 'my-video-watch',
  42   templateUrl: './video-watch.component.html',
  43   styleUrls: [ './video-watch.component.scss' ]
  44 })
  45 export class VideoWatchComponent implements OnInit, OnDestroy {
  46   private static LOCAL_STORAGE_PRIVACY_CONCERN_KEY = 'video-watch-privacy-concern'
  47
  48   @ViewChild('videoWatchPlaylist', { static: true }) videoWatchPlaylist: VideoWatchPlaylistComponent
  49   @ViewChild('videoShareModal', { static: false }) videoShareModal: VideoShareComponent
  50   @ViewChild('videoSupportModal', { static: false }) videoSupportModal: VideoSupportComponent
  51   @ViewChild('subscribeButton', { static: false }) subscribeButton: SubscribeButtonComponent
  52
  53   player: any
  54   playerElement: HTMLVideoElement
  55   theaterEnabled = false
  56   userRating: UserVideoRateType = null
  57   descriptionLoading = false
  58
  59   video: VideoDetails = null
  60   videoCaptions: VideoCaption[] = []
  61
  62   playlist: VideoPlaylist = null
  63
  64   completeDescriptionShown = false
  65   completeVideoDescription: string
  66   shortVideoDescription: string
  67   videoHTMLDescription = ''
  68   likesBarTooltipText = ''
  69   hasAlreadyAcceptedPrivacyConcern = false
  70   remoteServerDown = false
  71   hotkeys: Hotkey[]
  72
  73   private nextVideoUuid = ''
  74   private currentTime: number
  75   private paramsSub: Subscription
  76   private queryParamsSub: Subscription
  77   private configSub: Subscription
  78
  79   constructor (
  80     private elementRef: ElementRef,
  81     private changeDetector: ChangeDetectorRef,
  82     private route: ActivatedRoute,
  83     private router: Router,
  84     private videoService: VideoService,
  85     private playlistService: VideoPlaylistService,
  86     private videoBlacklistService: VideoBlacklistService,
  87     private confirmService: ConfirmService,
  88     private metaService: MetaService,
  89     private authService: AuthService,
  90     private serverService: ServerService,
  91     private restExtractor: RestExtractor,
  92     private notifier: Notifier,
  93     private pluginService: PluginService,
  94     private markdownService: MarkdownService,
  95     private zone: NgZone,
  96     private redirectService: RedirectService,
  97     private videoCaptionService: VideoCaptionService,
  98     private i18n: I18n,
  99     private hotkeysService: HotkeysService,
 100     private hooks: HooksService,
 101     private location: PlatformLocation,
 102     @Inject(LOCALE_ID) private localeId: string
 103   ) {}
 104
 105   get user () {
 106     return this.authService.getUser()
 107   }
 108
 109   async ngOnInit () {
 110     this.configSub = this.serverService.configLoaded
 111         .subscribe(() => {
 112           if (
 113             isWebRTCDisabled() ||
 114             this.serverService.getConfig().tracker.enabled === false ||
 115             peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
 116           ) {
 117             this.hasAlreadyAcceptedPrivacyConcern = true
 118           }
 119         })
 120
 121     this.paramsSub = this.route.params.subscribe(routeParams => {
 122       const videoId = routeParams[ 'videoId' ]
 123       if (videoId) this.loadVideo(videoId)
 124
 125       const playlistId = routeParams[ 'playlistId' ]
 126       if (playlistId) this.loadPlaylist(playlistId)
 127     })
 128
 129     this.queryParamsSub = this.route.queryParams.subscribe(queryParams => {
 130       const videoId = queryParams[ 'videoId' ]
 131       if (videoId) this.loadVideo(videoId)
 132     })
 133
 134     this.initHotkeys()
 135
 136     this.theaterEnabled = getStoredTheater()
 137
 138     this.hooks.runAction('action:video-watch.init', 'video-watch')
 139   }
 140
 141   ngOnDestroy () {
 142     this.flushPlayer()
 143
 144     // Unsubscribe subscriptions
 145     if (this.paramsSub) this.paramsSub.unsubscribe()
 146     if (this.queryParamsSub) this.queryParamsSub.unsubscribe()
 147
 148     // Unbind hotkeys
 149     if (this.isUserLoggedIn()) this.hotkeysService.remove(this.hotkeys)
 150   }
 151
 152   setLike () {
 153     if (this.isUserLoggedIn() === false) return
 154
 155     // Already liked this video
 156     if (this.userRating === 'like') this.setRating('none')
 157     else this.setRating('like')
 158   }
 159
 160   setDislike () {
 161     if (this.isUserLoggedIn() === false) return
 162
 163     // Already disliked this video
 164     if (this.userRating === 'dislike') this.setRating('none')
 165     else this.setRating('dislike')
 166   }
 167
 168   showMoreDescription () {
 169     if (this.completeVideoDescription === undefined) {
 170       return this.loadCompleteDescription()
 171     }
 172
 173     this.updateVideoDescription(this.completeVideoDescription)
 174     this.completeDescriptionShown = true
 175   }
 176
 177   showLessDescription () {
 178     this.updateVideoDescription(this.shortVideoDescription)
 179     this.completeDescriptionShown = false
 180   }
 181
 182   loadCompleteDescription () {
 183     this.descriptionLoading = true
 184
 185     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 186         .subscribe(
 187           description => {
 188             this.completeDescriptionShown = true
 189             this.descriptionLoading = false
 190
 191             this.shortVideoDescription = this.video.description
 192             this.completeVideoDescription = description
 193
 194             this.updateVideoDescription(this.completeVideoDescription)
 195           },
 196
 197           error => {
 198             this.descriptionLoading = false
 199             this.notifier.error(error.message)
 200           }
 201         )
 202   }
 203
 204   showSupportModal () {
 205     this.videoSupportModal.show()
 206   }
 207
 208   showShareModal () {
 209     this.videoShareModal.show(this.currentTime)
 210   }
 211
 212   isUserLoggedIn () {
 213     return this.authService.isLoggedIn()
 214   }
 215
 216   getVideoTags () {
 217     if (!this.video || Array.isArray(this.video.tags) === false) return []
 218
 219     return this.video.tags
 220   }
 221
 222   onRecommendations (videos: Video[]) {
 223     if (videos.length > 0) {
 224       // Pick a random video until the recommendations are improved
 225       this.nextVideoUuid = videos[randomInt(0,videos.length - 1)].uuid
 226     }
 227   }
 228
 229   onVideoRemoved () {
 230     this.redirectService.redirectToHomepage()
 231   }
 232
 233   acceptedPrivacyConcern () {
 234     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 235     this.hasAlreadyAcceptedPrivacyConcern = true
 236   }
 237
 238   isVideoToTranscode () {
 239     return this.video && this.video.state.id === VideoState.TO_TRANSCODE
 240   }
 241
 242   isVideoToImport () {
 243     return this.video && this.video.state.id === VideoState.TO_IMPORT
 244   }
 245
 246   hasVideoScheduledPublication () {
 247     return this.video && this.video.scheduledUpdate !== undefined
 248   }
 249
 250   isVideoBlur (video: Video) {
 251     return video.isVideoNSFWForUser(this.user, this.serverService.getConfig())
 252   }
 253
 254   private loadVideo (videoId: string) {
 255     // Video did not change
 256     if (this.video && this.video.uuid === videoId) return
 257
 258     if (this.player) this.player.pause()
 259
 260     const videoObs = this.hooks.wrapObsFun(
 261       this.videoService.getVideo.bind(this.videoService),
 262       { videoId },
 263       'video-watch',
 264       'filter:api.video-watch.video.get.params',
 265       'filter:api.video-watch.video.get.result'
 266     )
 267
 268     // Video did change
 269     forkJoin([
 270       videoObs,
 271       this.videoCaptionService.listCaptions(videoId)
 272     ])
 273       .pipe(
 274         // If 401, the video is private or blacklisted so redirect to 404
 275         catchError(err => this.restExtractor.redirectTo404IfNotFound(err, [ 400, 401, 403, 404 ]))
 276       )
 277       .subscribe(([ video, captionsResult ]) => {
 278         const queryParams = this.route.snapshot.queryParams
 279
 280         const urlOptions = {
 281           startTime: queryParams.start,
 282           stopTime: queryParams.stop,
 283
 284           muted: queryParams.muted,
 285           loop: queryParams.loop,
 286           subtitle: queryParams.subtitle,
 287
 288           playerMode: queryParams.mode,
 289           peertubeLink: false
 290         }
 291
 292         this.onVideoFetched(video, captionsResult.data, urlOptions)
 293             .catch(err => this.handleError(err))
 294       })
 295   }
 296
 297   private loadPlaylist (playlistId: string) {
 298     // Playlist did not change
 299     if (this.playlist && this.playlist.uuid === playlistId) return
 300
 301     this.playlistService.getVideoPlaylist(playlistId)
 302       .pipe(
 303         // If 401, the video is private or blacklisted so redirect to 404
 304         catchError(err => this.restExtractor.redirectTo404IfNotFound(err, [ 400, 401, 403, 404 ]))
 305       )
 306       .subscribe(playlist => {
 307         this.playlist = playlist
 308
 309         const videoId = this.route.snapshot.queryParams['videoId']
 310         this.videoWatchPlaylist.loadPlaylistElements(playlist, !videoId)
 311       })
 312   }
 313
 314   private updateVideoDescription (description: string) {
 315     this.video.description = description
 316     this.setVideoDescriptionHTML()
 317       .catch(err => console.error(err))
 318   }
 319
 320   private async setVideoDescriptionHTML () {
 321     this.videoHTMLDescription = await this.markdownService.textMarkdownToHTML(this.video.description)
 322   }
 323
 324   private setVideoLikesBarTooltipText () {
 325     this.likesBarTooltipText = this.i18n('{{likesNumber}} likes / {{dislikesNumber}} dislikes', {
 326       likesNumber: this.video.likes,
 327       dislikesNumber: this.video.dislikes
 328     })
 329   }
 330
 331   private handleError (err: any) {
 332     const errorMessage: string = typeof err === 'string' ? err : err.message
 333     if (!errorMessage) return
 334
 335     // Display a message in the video player instead of a notification
 336     if (errorMessage.indexOf('from xs param') !== -1) {
 337       this.flushPlayer()
 338       this.remoteServerDown = true
 339       this.changeDetector.detectChanges()
 340
 341       return
 342     }
 343
 344     this.notifier.error(errorMessage)
 345   }
 346
 347   private checkUserRating () {
 348     // Unlogged users do not have ratings
 349     if (this.isUserLoggedIn() === false) return
 350
 351     this.videoService.getUserVideoRating(this.video.id)
 352         .subscribe(
 353           ratingObject => {
 354             if (ratingObject) {
 355               this.userRating = ratingObject.rating
 356             }
 357           },
 358
 359           err => this.notifier.error(err.message)
 360         )
 361   }
 362
 363   private async onVideoFetched (
 364     video: VideoDetails,
 365     videoCaptions: VideoCaption[],
 366     urlOptions: CustomizationOptions & { playerMode: PlayerMode }
 367   ) {
 368     this.video = video
 369     this.videoCaptions = videoCaptions
 370
 371     // Re init attributes
 372     this.descriptionLoading = false
 373     this.completeDescriptionShown = false
 374     this.remoteServerDown = false
 375     this.currentTime = undefined
 376
 377     this.videoWatchPlaylist.updatePlaylistIndex(video)
 378
 379     let startTime = timeToInt(urlOptions.startTime) || (this.video.userHistory ? this.video.userHistory.currentTime : 0)
 380     // If we are at the end of the video, reset the timer
 381     if (this.video.duration - startTime <= 1) startTime = 0
 382
 383     if (this.isVideoBlur(this.video)) {
 384       const res = await this.confirmService.confirm(
 385         this.i18n('This video contains mature or explicit content. Are you sure you want to watch it?'),
 386         this.i18n('Mature or explicit content')
 387       )
 388       if (res === false) return this.location.back()
 389     }
 390
 391     // Flush old player if needed
 392     this.flushPlayer()
 393
 394     // Build video element, because videojs removes it on dispose
 395     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#videojs-wrapper')
 396     this.playerElement = document.createElement('video')
 397     this.playerElement.className = 'video-js vjs-peertube-skin'
 398     this.playerElement.setAttribute('playsinline', 'true')
 399     playerElementWrapper.appendChild(this.playerElement)
 400
 401     const playerCaptions = videoCaptions.map(c => ({
 402       label: c.language.label,
 403       language: c.language.id,
 404       src: environment.apiUrl + c.captionPath
 405     }))
 406
 407     const options: PeertubePlayerManagerOptions = {
 408       common: {
 409         autoplay: this.isAutoplay(),
 410
 411         playerElement: this.playerElement,
 412         onPlayerElementChange: (element: HTMLVideoElement) => this.playerElement = element,
 413
 414         videoDuration: this.video.duration,
 415         enableHotkeys: true,
 416         inactivityTimeout: 2500,
 417         poster: this.video.previewUrl,
 418
 419         startTime,
 420         stopTime: urlOptions.stopTime,
 421         controls: urlOptions.controls,
 422         muted: urlOptions.muted,
 423         loop: urlOptions.loop,
 424         subtitle: urlOptions.subtitle,
 425
 426         peertubeLink: urlOptions.peertubeLink,
 427
 428         theaterMode: true,
 429         captions: videoCaptions.length !== 0,
 430
 431         videoViewUrl: this.video.privacy.id !== VideoPrivacy.PRIVATE
 432           ? this.videoService.getVideoViewUrl(this.video.uuid)
 433           : null,
 434         embedUrl: this.video.embedUrl,
 435
 436         language: this.localeId,
 437
 438         userWatching: this.user && this.user.videosHistoryEnabled === true ? {
 439           url: this.videoService.getUserWatchingVideoUrl(this.video.uuid),
 440           authorizationHeader: this.authService.getRequestHeaderValue()
 441         } : undefined,
 442
 443         serverUrl: environment.apiUrl,
 444
 445         videoCaptions: playerCaptions
 446       },
 447
 448       webtorrent: {
 449         videoFiles: this.video.files
 450       }
 451     }
 452
 453     let mode: PlayerMode
 454
 455     if (urlOptions.playerMode) {
 456       if (urlOptions.playerMode === 'p2p-media-loader') mode = 'p2p-media-loader'
 457       else mode = 'webtorrent'
 458     } else {
 459       if (this.video.hasHlsPlaylist()) mode = 'p2p-media-loader'
 460       else mode = 'webtorrent'
 461     }
 462
 463     if (mode === 'p2p-media-loader') {
 464       const hlsPlaylist = this.video.getHlsPlaylist()
 465
 466       const p2pMediaLoader = {
 467         playlistUrl: hlsPlaylist.playlistUrl,
 468         segmentsSha256Url: hlsPlaylist.segmentsSha256Url,
 469         redundancyBaseUrls: hlsPlaylist.redundancies.map(r => r.baseUrl),
 470         trackerAnnounce: this.video.trackerUrls,
 471         videoFiles: this.video.files
 472       } as P2PMediaLoaderOptions
 473
 474       Object.assign(options, { p2pMediaLoader })
 475     }
 476
 477     this.zone.runOutsideAngular(async () => {
 478       this.player = await PeertubePlayerManager.initialize(mode, options, player => this.player = player)
 479
 480       this.player.on('customError', ({ err }: { err: any }) => this.handleError(err))
 481
 482       this.player.on('timeupdate', () => {
 483         this.currentTime = Math.floor(this.player.currentTime())
 484       })
 485
 486       this.player.one('ended', () => {
 487         if (this.playlist) {
 488           this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 489         } else if (this.user && this.user.autoPlayNextVideo) {
 490           this.zone.run(() => this.autoplayNext())
 491         }
 492       })
 493
 494       this.player.one('stopped', () => {
 495         if (this.playlist) {
 496           this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 497         }
 498       })
 499
 500       this.player.on('theaterChange', (_: any, enabled: boolean) => {
 501         this.zone.run(() => this.theaterEnabled = enabled)
 502       })
 503     })
 504
 505     this.setVideoDescriptionHTML()
 506     this.setVideoLikesBarTooltipText()
 507
 508     this.setOpenGraphTags()
 509     this.checkUserRating()
 510
 511     this.hooks.runAction('action:video-watch.video.loaded', 'video-watch')
 512   }
 513
 514   private autoplayNext () {
 515     if (this.nextVideoUuid) {
 516       this.router.navigate([ '/videos/watch', this.nextVideoUuid ])
 517     }
 518   }
 519
 520   private setRating (nextRating: UserVideoRateType) {
 521     const ratingMethods: { [id in UserVideoRateType]: (id: number) => Observable<any> } = {
 522       like: this.videoService.setVideoLike,
 523       dislike: this.videoService.setVideoDislike,
 524       none: this.videoService.unsetVideoLike
 525     }
 526
 527     ratingMethods[nextRating].call(this.videoService, this.video.id)
 528           .subscribe(
 529             () => {
 530               // Update the video like attribute
 531               this.updateVideoRating(this.userRating, nextRating)
 532               this.userRating = nextRating
 533             },
 534
 535             (err: { message: string }) => this.notifier.error(err.message)
 536           )
 537   }
 538
 539   private updateVideoRating (oldRating: UserVideoRateType, newRating: UserVideoRateType) {
 540     let likesToIncrement = 0
 541     let dislikesToIncrement = 0
 542
 543     if (oldRating) {
 544       if (oldRating === 'like') likesToIncrement--
 545       if (oldRating === 'dislike') dislikesToIncrement--
 546     }
 547
 548     if (newRating === 'like') likesToIncrement++
 549     if (newRating === 'dislike') dislikesToIncrement++
 550
 551     this.video.likes += likesToIncrement
 552     this.video.dislikes += dislikesToIncrement
 553
 554     this.video.buildLikeAndDislikePercents()
 555     this.setVideoLikesBarTooltipText()
 556   }
 557
 558   private setOpenGraphTags () {
 559     this.metaService.setTitle(this.video.name)
 560
 561     this.metaService.setTag('og:type', 'video')
 562
 563     this.metaService.setTag('og:title', this.video.name)
 564     this.metaService.setTag('name', this.video.name)
 565
 566     this.metaService.setTag('og:description', this.video.description)
 567     this.metaService.setTag('description', this.video.description)
 568
 569     this.metaService.setTag('og:image', this.video.previewPath)
 570
 571     this.metaService.setTag('og:duration', this.video.duration.toString())
 572
 573     this.metaService.setTag('og:site_name', 'PeerTube')
 574
 575     this.metaService.setTag('og:url', window.location.href)
 576     this.metaService.setTag('url', window.location.href)
 577   }
 578
 579   private isAutoplay () {
 580     // We'll jump to the thread id, so do not play the video
 581     if (this.route.snapshot.params['threadId']) return false
 582
 583     // Otherwise true by default
 584     if (!this.user) return true
 585
 586     // Be sure the autoPlay is set to false
 587     return this.user.autoPlayVideo !== false
 588   }
 589
 590   private flushPlayer () {
 591     // Remove player if it exists
 592     if (this.player) {
 593       try {
 594         this.player.dispose()
 595         this.player = undefined
 596       } catch (err) {
 597         console.error('Cannot dispose player.', err)
 598       }
 599     }
 600   }
 601
 602   private initHotkeys () {
 603     this.hotkeys = [
 604       new Hotkey('shift+l', () => {
 605         this.setLike()
 606         return false
 607       }, undefined, this.i18n('Like the video')),
 608
 609       new Hotkey('shift+d', () => {
 610         this.setDislike()
 611         return false
 612       }, undefined, this.i18n('Dislike the video')),
 613
 614       new Hotkey('shift+s', () => {
 615         this.subscribeButton.subscribed ? this.subscribeButton.unsubscribe() : this.subscribeButton.subscribe()
 616         return false
 617       }, undefined, this.i18n('Subscribe to the account'))
 618     ]
 619     if (this.isUserLoggedIn()) this.hotkeysService.add(this.hotkeys)
 620   }
 621 }