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