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
  36 @Component({
  37   selector: 'my-video-watch',
  38   templateUrl: './video-watch.component.html',
  39   styleUrls: [ './video-watch.component.scss' ]
  40 })
  41 export class VideoWatchComponent implements OnInit, OnDestroy {
  42   private static LOCAL_STORAGE_PRIVACY_CONCERN_KEY = 'video-watch-privacy-concern'
  43
  44   @ViewChild('videoWatchPlaylist') videoWatchPlaylist: VideoWatchPlaylistComponent
  45   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  46   @ViewChild('videoSupportModal') videoSupportModal: VideoSupportComponent
  47   @ViewChild('subscribeButton') subscribeButton: SubscribeButtonComponent
  48
  49   player: any
  50   playerElement: HTMLVideoElement
  51   theaterEnabled = false
  52   userRating: UserVideoRateType = null
  53   video: VideoDetails = null
  54   descriptionLoading = false
  55
  56   playlist: VideoPlaylist = null
  57
  58   completeDescriptionShown = false
  59   completeVideoDescription: string
  60   shortVideoDescription: string
  61   videoHTMLDescription = ''
  62   likesBarTooltipText = ''
  63   hasAlreadyAcceptedPrivacyConcern = false
  64   remoteServerDown = false
  65   hotkeys: Hotkey[]
  66
  67   private currentTime: number
  68   private paramsSub: Subscription
  69   private queryParamsSub: Subscription
  70   private configSub: Subscription
  71
  72   constructor (
  73     private elementRef: ElementRef,
  74     private changeDetector: ChangeDetectorRef,
  75     private route: ActivatedRoute,
  76     private router: Router,
  77     private videoService: VideoService,
  78     private playlistService: VideoPlaylistService,
  79     private videoBlacklistService: VideoBlacklistService,
  80     private confirmService: ConfirmService,
  81     private metaService: MetaService,
  82     private authService: AuthService,
  83     private serverService: ServerService,
  84     private restExtractor: RestExtractor,
  85     private notifier: Notifier,
  86     private markdownService: MarkdownService,
  87     private zone: NgZone,
  88     private redirectService: RedirectService,
  89     private videoCaptionService: VideoCaptionService,
  90     private i18n: I18n,
  91     private hotkeysService: HotkeysService,
  92     @Inject(LOCALE_ID) private localeId: string
  93   ) {}
  94
  95   get user () {
  96     return this.authService.getUser()
  97   }
  98
  99   ngOnInit () {
 100     this.configSub = this.serverService.configLoaded
 101         .subscribe(() => {
 102           if (
 103             isWebRTCDisabled() ||
 104             this.serverService.getConfig().tracker.enabled === false ||
 105             peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
 106           ) {
 107             this.hasAlreadyAcceptedPrivacyConcern = true
 108           }
 109         })
 110
 111     this.paramsSub = this.route.params.subscribe(routeParams => {
 112       const videoId = routeParams[ 'videoId' ]
 113       if (videoId) this.loadVideo(videoId)
 114
 115       const playlistId = routeParams[ 'playlistId' ]
 116       if (playlistId) this.loadPlaylist(playlistId)
 117     })
 118
 119     this.queryParamsSub = this.route.queryParams.subscribe(queryParams => {
 120       const videoId = queryParams[ 'videoId' ]
 121       if (videoId) this.loadVideo(videoId)
 122     })
 123
 124     this.initHotkeys()
 125
 126     this.theaterEnabled = getStoredTheater()
 127   }
 128
 129   ngOnDestroy () {
 130     this.flushPlayer()
 131
 132     // Unsubscribe subscriptions
 133     if (this.paramsSub) this.paramsSub.unsubscribe()
 134     if (this.queryParamsSub) this.queryParamsSub.unsubscribe()
 135
 136     // Unbind hotkeys
 137     if (this.isUserLoggedIn()) this.hotkeysService.remove(this.hotkeys)
 138   }
 139
 140   setLike () {
 141     if (this.isUserLoggedIn() === false) return
 142
 143     // Already liked this video
 144     if (this.userRating === 'like') this.setRating('none')
 145     else this.setRating('like')
 146   }
 147
 148   setDislike () {
 149     if (this.isUserLoggedIn() === false) return
 150
 151     // Already disliked this video
 152     if (this.userRating === 'dislike') this.setRating('none')
 153     else this.setRating('dislike')
 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
 253         const urlOptions = {
 254           startTime: queryParams.start,
 255           stopTime: queryParams.stop,
 256
 257           muted: queryParams.muted,
 258           loop: queryParams.loop,
 259           subtitle: queryParams.subtitle,
 260
 261           playerMode: queryParams.mode,
 262           peertubeLink: false
 263         }
 264
 265         this.onVideoFetched(video, captionsResult.data, urlOptions)
 266             .catch(err => this.handleError(err))
 267       })
 268   }
 269
 270   private loadPlaylist (playlistId: string) {
 271     // Playlist did not change
 272     if (this.playlist && this.playlist.uuid === playlistId) return
 273
 274     this.playlistService.getVideoPlaylist(playlistId)
 275       .pipe(
 276         // If 401, the video is private or blacklisted so redirect to 404
 277         catchError(err => this.restExtractor.redirectTo404IfNotFound(err, [ 400, 401, 403, 404 ]))
 278       )
 279       .subscribe(playlist => {
 280         this.playlist = playlist
 281
 282         const videoId = this.route.snapshot.queryParams['videoId']
 283         this.videoWatchPlaylist.loadPlaylistElements(playlist, !videoId)
 284       })
 285   }
 286
 287   private updateVideoDescription (description: string) {
 288     this.video.description = description
 289     this.setVideoDescriptionHTML()
 290       .catch(err => console.error(err))
 291   }
 292
 293   private async setVideoDescriptionHTML () {
 294     this.videoHTMLDescription = await this.markdownService.textMarkdownToHTML(this.video.description)
 295   }
 296
 297   private setVideoLikesBarTooltipText () {
 298     this.likesBarTooltipText = this.i18n('{{likesNumber}} likes / {{dislikesNumber}} dislikes', {
 299       likesNumber: this.video.likes,
 300       dislikesNumber: this.video.dislikes
 301     })
 302   }
 303
 304   private handleError (err: any) {
 305     const errorMessage: string = typeof err === 'string' ? err : err.message
 306     if (!errorMessage) return
 307
 308     // Display a message in the video player instead of a notification
 309     if (errorMessage.indexOf('from xs param') !== -1) {
 310       this.flushPlayer()
 311       this.remoteServerDown = true
 312       this.changeDetector.detectChanges()
 313
 314       return
 315     }
 316
 317     this.notifier.error(errorMessage)
 318   }
 319
 320   private checkUserRating () {
 321     // Unlogged users do not have ratings
 322     if (this.isUserLoggedIn() === false) return
 323
 324     this.videoService.getUserVideoRating(this.video.id)
 325         .subscribe(
 326           ratingObject => {
 327             if (ratingObject) {
 328               this.userRating = ratingObject.rating
 329             }
 330           },
 331
 332           err => this.notifier.error(err.message)
 333         )
 334   }
 335
 336   private async onVideoFetched (
 337     video: VideoDetails,
 338     videoCaptions: VideoCaption[],
 339     urlOptions: CustomizationOptions & { playerMode: PlayerMode }
 340   ) {
 341     this.video = video
 342
 343     // Re init attributes
 344     this.descriptionLoading = false
 345     this.completeDescriptionShown = false
 346     this.remoteServerDown = false
 347     this.currentTime = undefined
 348
 349     this.videoWatchPlaylist.updatePlaylistIndex(video)
 350
 351     let startTime = timeToInt(urlOptions.startTime) || (this.video.userHistory ? this.video.userHistory.currentTime : 0)
 352     // If we are at the end of the video, reset the timer
 353     if (this.video.duration - startTime <= 1) startTime = 0
 354
 355     if (this.isVideoBlur(this.video)) {
 356       const res = await this.confirmService.confirm(
 357         this.i18n('This video contains mature or explicit content. Are you sure you want to watch it?'),
 358         this.i18n('Mature or explicit content')
 359       )
 360       if (res === false) return this.redirectService.redirectToHomepage()
 361     }
 362
 363     // Flush old player if needed
 364     this.flushPlayer()
 365
 366     // Build video element, because videojs remove it on dispose
 367     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#videojs-wrapper')
 368     this.playerElement = document.createElement('video')
 369     this.playerElement.className = 'video-js vjs-peertube-skin'
 370     this.playerElement.setAttribute('playsinline', 'true')
 371     playerElementWrapper.appendChild(this.playerElement)
 372
 373     const playerCaptions = videoCaptions.map(c => ({
 374       label: c.language.label,
 375       language: c.language.id,
 376       src: environment.apiUrl + c.captionPath
 377     }))
 378
 379     const options: PeertubePlayerManagerOptions = {
 380       common: {
 381         autoplay: this.isAutoplay(),
 382
 383         playerElement: this.playerElement,
 384         onPlayerElementChange: (element: HTMLVideoElement) => this.playerElement = element,
 385
 386         videoDuration: this.video.duration,
 387         enableHotkeys: true,
 388         inactivityTimeout: 2500,
 389         poster: this.video.previewUrl,
 390
 391         startTime,
 392         stopTime: urlOptions.stopTime,
 393         controls: urlOptions.controls,
 394         muted: urlOptions.muted,
 395         loop: urlOptions.loop,
 396         subtitle: urlOptions.subtitle,
 397
 398         peertubeLink: urlOptions.peertubeLink,
 399
 400         theaterMode: true,
 401         captions: videoCaptions.length !== 0,
 402
 403         videoViewUrl: this.video.privacy.id !== VideoPrivacy.PRIVATE
 404           ? this.videoService.getVideoViewUrl(this.video.uuid)
 405           : null,
 406         embedUrl: this.video.embedUrl,
 407
 408         language: this.localeId,
 409
 410         userWatching: this.user && this.user.videosHistoryEnabled === true ? {
 411           url: this.videoService.getUserWatchingVideoUrl(this.video.uuid),
 412           authorizationHeader: this.authService.getRequestHeaderValue()
 413         } : undefined,
 414
 415         serverUrl: environment.apiUrl,
 416
 417         videoCaptions: playerCaptions
 418       },
 419
 420       webtorrent: {
 421         videoFiles: this.video.files
 422       }
 423     }
 424
 425     let mode: PlayerMode
 426
 427     if (urlOptions.playerMode) {
 428       if (urlOptions.playerMode === 'p2p-media-loader') mode = 'p2p-media-loader'
 429       else mode = 'webtorrent'
 430     } else {
 431       if (this.video.hasHlsPlaylist()) mode = 'p2p-media-loader'
 432       else mode = 'webtorrent'
 433     }
 434
 435     if (mode === 'p2p-media-loader') {
 436       const hlsPlaylist = this.video.getHlsPlaylist()
 437
 438       const p2pMediaLoader = {
 439         playlistUrl: hlsPlaylist.playlistUrl,
 440         segmentsSha256Url: hlsPlaylist.segmentsSha256Url,
 441         redundancyBaseUrls: hlsPlaylist.redundancies.map(r => r.baseUrl),
 442         trackerAnnounce: this.video.trackerUrls,
 443         videoFiles: this.video.files
 444       } as P2PMediaLoaderOptions
 445
 446       Object.assign(options, { p2pMediaLoader })
 447     }
 448
 449     this.zone.runOutsideAngular(async () => {
 450       this.player = await PeertubePlayerManager.initialize(mode, options)
 451
 452       this.player.on('customError', ({ err }: { err: any }) => this.handleError(err))
 453
 454       this.player.on('timeupdate', () => {
 455         this.currentTime = Math.floor(this.player.currentTime())
 456       })
 457
 458       this.player.one('ended', () => {
 459         if (this.playlist) {
 460           this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 461         }
 462       })
 463
 464       this.player.one('stopped', () => {
 465         if (this.playlist) {
 466           this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 467         }
 468       })
 469
 470       this.player.on('theaterChange', (_: any, enabled: boolean) => {
 471         this.zone.run(() => this.theaterEnabled = enabled)
 472       })
 473     })
 474
 475     this.setVideoDescriptionHTML()
 476     this.setVideoLikesBarTooltipText()
 477
 478     this.setOpenGraphTags()
 479     this.checkUserRating()
 480   }
 481
 482   private setRating (nextRating: UserVideoRateType) {
 483     const ratingMethods: { [id in UserVideoRateType]: (id: number) => Observable<any> } = {
 484       like: this.videoService.setVideoLike,
 485       dislike: this.videoService.setVideoDislike,
 486       none: this.videoService.unsetVideoLike
 487     }
 488
 489     ratingMethods[nextRating].call(this.videoService, this.video.id)
 490           .subscribe(
 491             () => {
 492               // Update the video like attribute
 493               this.updateVideoRating(this.userRating, nextRating)
 494               this.userRating = nextRating
 495             },
 496
 497             (err: { message: string }) => this.notifier.error(err.message)
 498           )
 499   }
 500
 501   private updateVideoRating (oldRating: UserVideoRateType, newRating: UserVideoRateType) {
 502     let likesToIncrement = 0
 503     let dislikesToIncrement = 0
 504
 505     if (oldRating) {
 506       if (oldRating === 'like') likesToIncrement--
 507       if (oldRating === 'dislike') dislikesToIncrement--
 508     }
 509
 510     if (newRating === 'like') likesToIncrement++
 511     if (newRating === 'dislike') dislikesToIncrement++
 512
 513     this.video.likes += likesToIncrement
 514     this.video.dislikes += dislikesToIncrement
 515
 516     this.video.buildLikeAndDislikePercents()
 517     this.setVideoLikesBarTooltipText()
 518   }
 519
 520   private setOpenGraphTags () {
 521     this.metaService.setTitle(this.video.name)
 522
 523     this.metaService.setTag('og:type', 'video')
 524
 525     this.metaService.setTag('og:title', this.video.name)
 526     this.metaService.setTag('name', this.video.name)
 527
 528     this.metaService.setTag('og:description', this.video.description)
 529     this.metaService.setTag('description', this.video.description)
 530
 531     this.metaService.setTag('og:image', this.video.previewPath)
 532
 533     this.metaService.setTag('og:duration', this.video.duration.toString())
 534
 535     this.metaService.setTag('og:site_name', 'PeerTube')
 536
 537     this.metaService.setTag('og:url', window.location.href)
 538     this.metaService.setTag('url', window.location.href)
 539   }
 540
 541   private isAutoplay () {
 542     // We'll jump to the thread id, so do not play the video
 543     if (this.route.snapshot.params['threadId']) return false
 544
 545     // Otherwise true by default
 546     if (!this.user) return true
 547
 548     // Be sure the autoPlay is set to false
 549     return this.user.autoPlayVideo !== false
 550   }
 551
 552   private flushPlayer () {
 553     // Remove player if it exists
 554     if (this.player) {
 555       try {
 556         this.player.dispose()
 557         this.player = undefined
 558       } catch (err) {
 559         console.error('Cannot dispose player.', err)
 560       }
 561     }
 562   }
 563
 564   private initHotkeys () {
 565     this.hotkeys = [
 566       new Hotkey('shift+l', () => {
 567         this.setLike()
 568         return false
 569       }, undefined, this.i18n('Like the video')),
 570
 571       new Hotkey('shift+d', () => {
 572         this.setDislike()
 573         return false
 574       }, undefined, this.i18n('Dislike the video')),
 575
 576       new Hotkey('shift+s', () => {
 577         this.subscribeButton.subscribed ? this.subscribeButton.unsubscribe() : this.subscribeButton.subscribe()
 578         return false
 579       }, undefined, this.i18n('Subscribe to the account'))
 580     ]
 581     if (this.isUserLoggedIn()) this.hotkeysService.add(this.hotkeys)
 582   }
 583 }