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 * as WebTorrent from 'webtorrent'
  12 import { UserVideoRateType, VideoCaption, VideoPrivacy, VideoState } from '../../../../../shared'
  13 import { AuthService, ConfirmService } from '../../core'
  14 import { RestExtractor, VideoBlacklistService } from '../../shared'
  15 import { VideoDetails } from '../../shared/video/video-details.model'
  16 import { VideoService } from '../../shared/video/video.service'
  17 import { VideoDownloadComponent } from './modal/video-download.component'
  18 import { VideoReportComponent } from './modal/video-report.component'
  19 import { VideoShareComponent } from './modal/video-share.component'
  20 import { VideoBlacklistComponent } from './modal/video-blacklist.component'
  21 import { SubscribeButtonComponent } from '@app/shared/user-subscription/subscribe-button.component'
  22 import { I18n } from '@ngx-translate/i18n-polyfill'
  23 import { environment } from '../../../environments/environment'
  24 import { VideoCaptionService } from '@app/shared/video-caption'
  25 import { MarkdownService } from '@app/shared/renderer'
  26 import {
  27   P2PMediaLoaderOptions,
  28   PeertubePlayerManager,
  29   PeertubePlayerManagerOptions,
  30   PlayerMode
  31 } from '../../../assets/player/peertube-player-manager'
  32
  33 @Component({
  34   selector: 'my-video-watch',
  35   templateUrl: './video-watch.component.html',
  36   styleUrls: [ './video-watch.component.scss' ]
  37 })
  38 export class VideoWatchComponent implements OnInit, OnDestroy {
  39   private static LOCAL_STORAGE_PRIVACY_CONCERN_KEY = 'video-watch-privacy-concern'
  40
  41   @ViewChild('videoDownloadModal') videoDownloadModal: VideoDownloadComponent
  42   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  43   @ViewChild('videoReportModal') videoReportModal: VideoReportComponent
  44   @ViewChild('videoSupportModal') videoSupportModal: VideoSupportComponent
  45   @ViewChild('videoBlacklistModal') videoBlacklistModal: VideoBlacklistComponent
  46   @ViewChild('subscribeButton') subscribeButton: SubscribeButtonComponent
  47
  48   player: any
  49   playerElement: HTMLVideoElement
  50   userRating: UserVideoRateType = null
  51   video: VideoDetails = null
  52   descriptionLoading = false
  53
  54   completeDescriptionShown = false
  55   completeVideoDescription: string
  56   shortVideoDescription: string
  57   videoHTMLDescription = ''
  58   likesBarTooltipText = ''
  59   hasAlreadyAcceptedPrivacyConcern = false
  60   remoteServerDown = false
  61   hotkeys: Hotkey[]
  62
  63   private paramsSub: Subscription
  64
  65   constructor (
  66     private elementRef: ElementRef,
  67     private changeDetector: ChangeDetectorRef,
  68     private route: ActivatedRoute,
  69     private router: Router,
  70     private videoService: VideoService,
  71     private videoBlacklistService: VideoBlacklistService,
  72     private confirmService: ConfirmService,
  73     private metaService: MetaService,
  74     private authService: AuthService,
  75     private serverService: ServerService,
  76     private restExtractor: RestExtractor,
  77     private notifier: Notifier,
  78     private markdownService: MarkdownService,
  79     private zone: NgZone,
  80     private redirectService: RedirectService,
  81     private videoCaptionService: VideoCaptionService,
  82     private i18n: I18n,
  83     private hotkeysService: HotkeysService,
  84     @Inject(LOCALE_ID) private localeId: string
  85   ) {}
  86
  87   get user () {
  88     return this.authService.getUser()
  89   }
  90
  91   ngOnInit () {
  92     if (
  93       WebTorrent.WEBRTC_SUPPORT === false ||
  94       peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
  95     ) {
  96       this.hasAlreadyAcceptedPrivacyConcern = true
  97     }
  98
  99     this.paramsSub = this.route.params.subscribe(routeParams => {
 100       const uuid = routeParams[ 'uuid' ]
 101
 102       // Video did not change
 103       if (this.video && this.video.uuid === uuid) return
 104
 105       if (this.player) this.player.pause()
 106
 107       // Video did change
 108       forkJoin(
 109         this.videoService.getVideo(uuid),
 110         this.videoCaptionService.listCaptions(uuid)
 111       )
 112         .pipe(
 113           // If 401, the video is private or blacklisted so redirect to 404
 114           catchError(err => this.restExtractor.redirectTo404IfNotFound(err, [ 400, 401, 403, 404 ]))
 115         )
 116         .subscribe(([ video, captionsResult ]) => {
 117           const startTime = this.route.snapshot.queryParams.start
 118           const subtitle = this.route.snapshot.queryParams.subtitle
 119           const playerMode = this.route.snapshot.queryParams.mode
 120
 121           this.onVideoFetched(video, captionsResult.data, { startTime, subtitle, playerMode })
 122               .catch(err => this.handleError(err))
 123         })
 124     })
 125
 126     this.hotkeys = [
 127       new Hotkey('shift+l', (event: KeyboardEvent): boolean => {
 128         this.setLike()
 129         return false
 130       }, undefined, this.i18n('Like the video')),
 131       new Hotkey('shift+d', (event: KeyboardEvent): boolean => {
 132         this.setDislike()
 133         return false
 134       }, undefined, this.i18n('Dislike the video')),
 135       new Hotkey('shift+s', (event: KeyboardEvent): boolean => {
 136         this.subscribeButton.subscribed ?
 137           this.subscribeButton.unsubscribe() :
 138           this.subscribeButton.subscribe()
 139         return false
 140       }, undefined, this.i18n('Subscribe to the account'))
 141     ]
 142     if (this.isUserLoggedIn()) this.hotkeysService.add(this.hotkeys)
 143   }
 144
 145   ngOnDestroy () {
 146     this.flushPlayer()
 147
 148     // Unsubscribe subscriptions
 149     this.paramsSub.unsubscribe()
 150
 151     // Unbind hotkeys
 152     if (this.isUserLoggedIn()) this.hotkeysService.remove(this.hotkeys)
 153   }
 154
 155   setLike () {
 156     if (this.isUserLoggedIn() === false) return
 157     if (this.userRating === 'like') {
 158       // Already liked this video
 159       this.setRating('none')
 160     } else {
 161       this.setRating('like')
 162     }
 163   }
 164
 165   setDislike () {
 166     if (this.isUserLoggedIn() === false) return
 167     if (this.userRating === 'dislike') {
 168       // Already disliked this video
 169       this.setRating('none')
 170     } else {
 171       this.setRating('dislike')
 172     }
 173   }
 174
 175   showMoreDescription () {
 176     if (this.completeVideoDescription === undefined) {
 177       return this.loadCompleteDescription()
 178     }
 179
 180     this.updateVideoDescription(this.completeVideoDescription)
 181     this.completeDescriptionShown = true
 182   }
 183
 184   showLessDescription () {
 185     this.updateVideoDescription(this.shortVideoDescription)
 186     this.completeDescriptionShown = false
 187   }
 188
 189   loadCompleteDescription () {
 190     this.descriptionLoading = true
 191
 192     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 193         .subscribe(
 194           description => {
 195             this.completeDescriptionShown = true
 196             this.descriptionLoading = false
 197
 198             this.shortVideoDescription = this.video.description
 199             this.completeVideoDescription = description
 200
 201             this.updateVideoDescription(this.completeVideoDescription)
 202           },
 203
 204           error => {
 205             this.descriptionLoading = false
 206             this.notifier.error(error.message)
 207           }
 208         )
 209   }
 210
 211   showReportModal (event: Event) {
 212     event.preventDefault()
 213     this.videoReportModal.show()
 214   }
 215
 216   showSupportModal () {
 217     this.videoSupportModal.show()
 218   }
 219
 220   showShareModal () {
 221     const currentTime = this.player ? this.player.currentTime() : undefined
 222
 223     this.videoShareModal.show(currentTime)
 224   }
 225
 226   showDownloadModal (event: Event) {
 227     event.preventDefault()
 228     this.videoDownloadModal.show()
 229   }
 230
 231   showBlacklistModal (event: Event) {
 232     event.preventDefault()
 233     this.videoBlacklistModal.show()
 234   }
 235
 236   async unblacklistVideo (event: Event) {
 237     event.preventDefault()
 238
 239     const confirmMessage = this.i18n(
 240       'Do you really want to remove this video from the blacklist? It will be available again in the videos list.'
 241     )
 242
 243     const res = await this.confirmService.confirm(confirmMessage, this.i18n('Unblacklist'))
 244     if (res === false) return
 245
 246     this.videoBlacklistService.removeVideoFromBlacklist(this.video.id).subscribe(
 247       () => {
 248         this.notifier.success(this.i18n('Video {{name}} removed from the blacklist.', { name: this.video.name }))
 249
 250         this.video.blacklisted = false
 251         this.video.blacklistedReason = null
 252       },
 253
 254       err => this.notifier.error(err.message)
 255     )
 256   }
 257
 258   isUserLoggedIn () {
 259     return this.authService.isLoggedIn()
 260   }
 261
 262   isVideoUpdatable () {
 263     return this.video.isUpdatableBy(this.authService.getUser())
 264   }
 265
 266   isVideoBlacklistable () {
 267     return this.video.isBlackistableBy(this.user)
 268   }
 269
 270   isVideoUnblacklistable () {
 271     return this.video.isUnblacklistableBy(this.user)
 272   }
 273
 274   getVideoTags () {
 275     if (!this.video || Array.isArray(this.video.tags) === false) return []
 276
 277     return this.video.tags
 278   }
 279
 280   isVideoRemovable () {
 281     return this.video.isRemovableBy(this.authService.getUser())
 282   }
 283
 284   async removeVideo (event: Event) {
 285     event.preventDefault()
 286
 287     const res = await this.confirmService.confirm(this.i18n('Do you really want to delete this video?'), this.i18n('Delete'))
 288     if (res === false) return
 289
 290     this.videoService.removeVideo(this.video.id)
 291         .subscribe(
 292           () => {
 293             this.notifier.success(this.i18n('Video {{videoName}} deleted.', { videoName: this.video.name }))
 294
 295             // Go back to the video-list.
 296             this.redirectService.redirectToHomepage()
 297           },
 298
 299           error => this.notifier.error(error.message)
 300         )
 301   }
 302
 303   acceptedPrivacyConcern () {
 304     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 305     this.hasAlreadyAcceptedPrivacyConcern = true
 306   }
 307
 308   isVideoToTranscode () {
 309     return this.video && this.video.state.id === VideoState.TO_TRANSCODE
 310   }
 311
 312   isVideoToImport () {
 313     return this.video && this.video.state.id === VideoState.TO_IMPORT
 314   }
 315
 316   hasVideoScheduledPublication () {
 317     return this.video && this.video.scheduledUpdate !== undefined
 318   }
 319
 320   private updateVideoDescription (description: string) {
 321     this.video.description = description
 322     this.setVideoDescriptionHTML()
 323   }
 324
 325   private setVideoDescriptionHTML () {
 326     this.videoHTMLDescription = this.markdownService.textMarkdownToHTML(this.video.description)
 327   }
 328
 329   private setVideoLikesBarTooltipText () {
 330     this.likesBarTooltipText = this.i18n('{{likesNumber}} likes / {{dislikesNumber}} dislikes', {
 331       likesNumber: this.video.likes,
 332       dislikesNumber: this.video.dislikes
 333     })
 334   }
 335
 336   private handleError (err: any) {
 337     const errorMessage: string = typeof err === 'string' ? err : err.message
 338     if (!errorMessage) return
 339
 340     // Display a message in the video player instead of a notification
 341     if (errorMessage.indexOf('from xs param') !== -1) {
 342       this.flushPlayer()
 343       this.remoteServerDown = true
 344       this.changeDetector.detectChanges()
 345
 346       return
 347     }
 348
 349     this.notifier.error(errorMessage)
 350   }
 351
 352   private checkUserRating () {
 353     // Unlogged users do not have ratings
 354     if (this.isUserLoggedIn() === false) return
 355
 356     this.videoService.getUserVideoRating(this.video.id)
 357         .subscribe(
 358           ratingObject => {
 359             if (ratingObject) {
 360               this.userRating = ratingObject.rating
 361             }
 362           },
 363
 364           err => this.notifier.error(err.message)
 365         )
 366   }
 367
 368   private async onVideoFetched (
 369     video: VideoDetails,
 370     videoCaptions: VideoCaption[],
 371     urlOptions: { startTime?: number, subtitle?: string, playerMode?: string }
 372   ) {
 373     this.video = video
 374
 375     // Re init attributes
 376     this.descriptionLoading = false
 377     this.completeDescriptionShown = false
 378     this.remoteServerDown = false
 379
 380     let startTime = urlOptions.startTime || (this.video.userHistory ? this.video.userHistory.currentTime : 0)
 381     // If we are at the end of the video, reset the timer
 382     if (this.video.duration - startTime <= 1) startTime = 0
 383
 384     if (this.video.isVideoNSFWForUser(this.user, this.serverService.getConfig())) {
 385       const res = await this.confirmService.confirm(
 386         this.i18n('This video contains mature or explicit content. Are you sure you want to watch it?'),
 387         this.i18n('Mature or explicit content')
 388       )
 389       if (res === false) return this.redirectService.redirectToHomepage()
 390     }
 391
 392     // Flush old player if needed
 393     this.flushPlayer()
 394
 395     // Build video element, because videojs remove it on dispose
 396     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#video-element-wrapper')
 397     this.playerElement = document.createElement('video')
 398     this.playerElement.className = 'video-js vjs-peertube-skin'
 399     this.playerElement.setAttribute('playsinline', 'true')
 400     playerElementWrapper.appendChild(this.playerElement)
 401
 402     const playerCaptions = videoCaptions.map(c => ({
 403       label: c.language.label,
 404       language: c.language.id,
 405       src: environment.apiUrl + c.captionPath
 406     }))
 407
 408     const options: PeertubePlayerManagerOptions = {
 409       common: {
 410         autoplay: this.isAutoplay(),
 411
 412         playerElement: this.playerElement,
 413         onPlayerElementChange: (element: HTMLVideoElement) => this.playerElement = element,
 414
 415         videoDuration: this.video.duration,
 416         enableHotkeys: true,
 417         inactivityTimeout: 2500,
 418         poster: this.video.previewUrl,
 419         startTime,
 420
 421         theaterMode: true,
 422         captions: videoCaptions.length !== 0,
 423         peertubeLink: false,
 424
 425         videoViewUrl: this.video.privacy.id !== VideoPrivacy.PRIVATE ? this.videoService.getVideoViewUrl(this.video.uuid) : null,
 426         embedUrl: this.video.embedUrl,
 427
 428         language: this.localeId,
 429
 430         subtitle: urlOptions.subtitle,
 431
 432         userWatching: this.user && this.user.videosHistoryEnabled === true ? {
 433           url: this.videoService.getUserWatchingVideoUrl(this.video.uuid),
 434           authorizationHeader: this.authService.getRequestHeaderValue()
 435         } : undefined,
 436
 437         serverUrl: environment.apiUrl,
 438
 439         videoCaptions: playerCaptions
 440       },
 441
 442       webtorrent: {
 443         videoFiles: this.video.files
 444       }
 445     }
 446
 447     const mode: PlayerMode = urlOptions.playerMode === 'p2p-media-loader' ? 'p2p-media-loader' : 'webtorrent'
 448
 449     if (mode === 'p2p-media-loader') {
 450       const hlsPlaylist = this.video.getHlsPlaylist()
 451
 452       const p2pMediaLoader = {
 453         playlistUrl: hlsPlaylist.playlistUrl,
 454         segmentsSha256Url: hlsPlaylist.segmentsSha256Url,
 455         redundancyBaseUrls: hlsPlaylist.redundancies.map(r => r.baseUrl),
 456         trackerAnnounce: this.video.trackerUrls,
 457         videoFiles: this.video.files
 458       } as P2PMediaLoaderOptions
 459
 460       Object.assign(options, { p2pMediaLoader })
 461     }
 462
 463     this.zone.runOutsideAngular(async () => {
 464       this.player = await PeertubePlayerManager.initialize(mode, options)
 465       this.player.on('customError', ({ err }: { err: any }) => this.handleError(err))
 466     })
 467
 468     this.setVideoDescriptionHTML()
 469     this.setVideoLikesBarTooltipText()
 470
 471     this.setOpenGraphTags()
 472     this.checkUserRating()
 473   }
 474
 475   private setRating (nextRating: UserVideoRateType) {
 476     let method
 477     switch (nextRating) {
 478       case 'like':
 479         method = this.videoService.setVideoLike
 480         break
 481       case 'dislike':
 482         method = this.videoService.setVideoDislike
 483         break
 484       case 'none':
 485         method = this.videoService.unsetVideoLike
 486         break
 487     }
 488
 489     method.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       this.player.dispose()
 556       this.player = undefined
 557     }
 558   }
 559 }