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 paramsSub: Subscription
  63
  64   constructor (
  65     private elementRef: ElementRef,
  66     private changeDetector: ChangeDetectorRef,
  67     private route: ActivatedRoute,
  68     private router: Router,
  69     private videoService: VideoService,
  70     private videoBlacklistService: VideoBlacklistService,
  71     private confirmService: ConfirmService,
  72     private metaService: MetaService,
  73     private authService: AuthService,
  74     private serverService: ServerService,
  75     private restExtractor: RestExtractor,
  76     private notifier: Notifier,
  77     private markdownService: MarkdownService,
  78     private zone: NgZone,
  79     private redirectService: RedirectService,
  80     private videoCaptionService: VideoCaptionService,
  81     private i18n: I18n,
  82     private hotkeysService: HotkeysService,
  83     @Inject(LOCALE_ID) private localeId: string
  84   ) {}
  85
  86   get user () {
  87     return this.authService.getUser()
  88   }
  89
  90   ngOnInit () {
  91     if (
  92       !!((window as any).RTCPeerConnection || (window as any).mozRTCPeerConnection || (window as any).webkitRTCPeerConnection) === false ||
  93       peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
  94     ) {
  95       this.hasAlreadyAcceptedPrivacyConcern = true
  96     }
  97
  98     this.paramsSub = this.route.params.subscribe(routeParams => {
  99       const uuid = routeParams[ 'uuid' ]
 100
 101       // Video did not change
 102       if (this.video && this.video.uuid === uuid) return
 103
 104       if (this.player) this.player.pause()
 105
 106       // Video did change
 107       forkJoin(
 108         this.videoService.getVideo(uuid),
 109         this.videoCaptionService.listCaptions(uuid)
 110       )
 111         .pipe(
 112           // If 401, the video is private or blacklisted so redirect to 404
 113           catchError(err => this.restExtractor.redirectTo404IfNotFound(err, [ 400, 401, 403, 404 ]))
 114         )
 115         .subscribe(([ video, captionsResult ]) => {
 116           const startTime = this.route.snapshot.queryParams.start
 117           const subtitle = this.route.snapshot.queryParams.subtitle
 118           const playerMode = this.route.snapshot.queryParams.mode
 119
 120           this.onVideoFetched(video, captionsResult.data, { startTime, subtitle, playerMode })
 121               .catch(err => this.handleError(err))
 122         })
 123     })
 124
 125     this.hotkeys = [
 126       new Hotkey('shift+l', (event: KeyboardEvent): boolean => {
 127         this.setLike()
 128         return false
 129       }, undefined, this.i18n('Like the video')),
 130       new Hotkey('shift+d', (event: KeyboardEvent): boolean => {
 131         this.setDislike()
 132         return false
 133       }, undefined, this.i18n('Dislike the video')),
 134       new Hotkey('shift+s', (event: KeyboardEvent): boolean => {
 135         this.subscribeButton.subscribed ?
 136           this.subscribeButton.unsubscribe() :
 137           this.subscribeButton.subscribe()
 138         return false
 139       }, undefined, this.i18n('Subscribe to the account'))
 140     ]
 141     if (this.isUserLoggedIn()) this.hotkeysService.add(this.hotkeys)
 142   }
 143
 144   ngOnDestroy () {
 145     this.flushPlayer()
 146
 147     // Unsubscribe subscriptions
 148     this.paramsSub.unsubscribe()
 149
 150     // Unbind hotkeys
 151     if (this.isUserLoggedIn()) this.hotkeysService.remove(this.hotkeys)
 152   }
 153
 154   setLike () {
 155     if (this.isUserLoggedIn() === false) return
 156     if (this.userRating === 'like') {
 157       // Already liked this video
 158       this.setRating('none')
 159     } else {
 160       this.setRating('like')
 161     }
 162   }
 163
 164   setDislike () {
 165     if (this.isUserLoggedIn() === false) return
 166     if (this.userRating === 'dislike') {
 167       // Already disliked this video
 168       this.setRating('none')
 169     } else {
 170       this.setRating('dislike')
 171     }
 172   }
 173
 174   showMoreDescription () {
 175     if (this.completeVideoDescription === undefined) {
 176       return this.loadCompleteDescription()
 177     }
 178
 179     this.updateVideoDescription(this.completeVideoDescription)
 180     this.completeDescriptionShown = true
 181   }
 182
 183   showLessDescription () {
 184     this.updateVideoDescription(this.shortVideoDescription)
 185     this.completeDescriptionShown = false
 186   }
 187
 188   loadCompleteDescription () {
 189     this.descriptionLoading = true
 190
 191     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 192         .subscribe(
 193           description => {
 194             this.completeDescriptionShown = true
 195             this.descriptionLoading = false
 196
 197             this.shortVideoDescription = this.video.description
 198             this.completeVideoDescription = description
 199
 200             this.updateVideoDescription(this.completeVideoDescription)
 201           },
 202
 203           error => {
 204             this.descriptionLoading = false
 205             this.notifier.error(error.message)
 206           }
 207         )
 208   }
 209
 210   showReportModal (event: Event) {
 211     event.preventDefault()
 212     this.videoReportModal.show()
 213   }
 214
 215   showSupportModal () {
 216     this.videoSupportModal.show()
 217   }
 218
 219   showShareModal () {
 220     const currentTime = this.player ? this.player.currentTime() : undefined
 221
 222     this.videoShareModal.show(currentTime)
 223   }
 224
 225   showDownloadModal (event: Event) {
 226     event.preventDefault()
 227     this.videoDownloadModal.show()
 228   }
 229
 230   showBlacklistModal (event: Event) {
 231     event.preventDefault()
 232     this.videoBlacklistModal.show()
 233   }
 234
 235   async unblacklistVideo (event: Event) {
 236     event.preventDefault()
 237
 238     const confirmMessage = this.i18n(
 239       'Do you really want to remove this video from the blacklist? It will be available again in the videos list.'
 240     )
 241
 242     const res = await this.confirmService.confirm(confirmMessage, this.i18n('Unblacklist'))
 243     if (res === false) return
 244
 245     this.videoBlacklistService.removeVideoFromBlacklist(this.video.id).subscribe(
 246       () => {
 247         this.notifier.success(this.i18n('Video {{name}} removed from the blacklist.', { name: this.video.name }))
 248
 249         this.video.blacklisted = false
 250         this.video.blacklistedReason = null
 251       },
 252
 253       err => this.notifier.error(err.message)
 254     )
 255   }
 256
 257   isUserLoggedIn () {
 258     return this.authService.isLoggedIn()
 259   }
 260
 261   isVideoUpdatable () {
 262     return this.video.isUpdatableBy(this.authService.getUser())
 263   }
 264
 265   isVideoBlacklistable () {
 266     return this.video.isBlackistableBy(this.user)
 267   }
 268
 269   isVideoUnblacklistable () {
 270     return this.video.isUnblacklistableBy(this.user)
 271   }
 272
 273   getVideoTags () {
 274     if (!this.video || Array.isArray(this.video.tags) === false) return []
 275
 276     return this.video.tags
 277   }
 278
 279   isVideoRemovable () {
 280     return this.video.isRemovableBy(this.authService.getUser())
 281   }
 282
 283   async removeVideo (event: Event) {
 284     event.preventDefault()
 285
 286     const res = await this.confirmService.confirm(this.i18n('Do you really want to delete this video?'), this.i18n('Delete'))
 287     if (res === false) return
 288
 289     this.videoService.removeVideo(this.video.id)
 290         .subscribe(
 291           () => {
 292             this.notifier.success(this.i18n('Video {{videoName}} deleted.', { videoName: this.video.name }))
 293
 294             // Go back to the video-list.
 295             this.redirectService.redirectToHomepage()
 296           },
 297
 298           error => this.notifier.error(error.message)
 299         )
 300   }
 301
 302   acceptedPrivacyConcern () {
 303     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 304     this.hasAlreadyAcceptedPrivacyConcern = true
 305   }
 306
 307   isVideoToTranscode () {
 308     return this.video && this.video.state.id === VideoState.TO_TRANSCODE
 309   }
 310
 311   isVideoToImport () {
 312     return this.video && this.video.state.id === VideoState.TO_IMPORT
 313   }
 314
 315   hasVideoScheduledPublication () {
 316     return this.video && this.video.scheduledUpdate !== undefined
 317   }
 318
 319   private updateVideoDescription (description: string) {
 320     this.video.description = description
 321     this.setVideoDescriptionHTML()
 322   }
 323
 324   private setVideoDescriptionHTML () {
 325     this.videoHTMLDescription = this.markdownService.textMarkdownToHTML(this.video.description)
 326   }
 327
 328   private setVideoLikesBarTooltipText () {
 329     this.likesBarTooltipText = this.i18n('{{likesNumber}} likes / {{dislikesNumber}} dislikes', {
 330       likesNumber: this.video.likes,
 331       dislikesNumber: this.video.dislikes
 332     })
 333   }
 334
 335   private handleError (err: any) {
 336     const errorMessage: string = typeof err === 'string' ? err : err.message
 337     if (!errorMessage) return
 338
 339     // Display a message in the video player instead of a notification
 340     if (errorMessage.indexOf('from xs param') !== -1) {
 341       this.flushPlayer()
 342       this.remoteServerDown = true
 343       this.changeDetector.detectChanges()
 344
 345       return
 346     }
 347
 348     this.notifier.error(errorMessage)
 349   }
 350
 351   private checkUserRating () {
 352     // Unlogged users do not have ratings
 353     if (this.isUserLoggedIn() === false) return
 354
 355     this.videoService.getUserVideoRating(this.video.id)
 356         .subscribe(
 357           ratingObject => {
 358             if (ratingObject) {
 359               this.userRating = ratingObject.rating
 360             }
 361           },
 362
 363           err => this.notifier.error(err.message)
 364         )
 365   }
 366
 367   private async onVideoFetched (
 368     video: VideoDetails,
 369     videoCaptions: VideoCaption[],
 370     urlOptions: { startTime?: number, subtitle?: string, playerMode?: string }
 371   ) {
 372     this.video = video
 373
 374     // Re init attributes
 375     this.descriptionLoading = false
 376     this.completeDescriptionShown = false
 377     this.remoteServerDown = false
 378
 379     let startTime = 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.video.isVideoNSFWForUser(this.user, this.serverService.getConfig())) {
 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.redirectService.redirectToHomepage()
 389     }
 390
 391     // Flush old player if needed
 392     this.flushPlayer()
 393
 394     // Build video element, because videojs remove it on dispose
 395     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#video-element-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         startTime,
 419
 420         theaterMode: true,
 421         captions: videoCaptions.length !== 0,
 422         peertubeLink: false,
 423
 424         videoViewUrl: this.video.privacy.id !== VideoPrivacy.PRIVATE ? this.videoService.getVideoViewUrl(this.video.uuid) : null,
 425         embedUrl: this.video.embedUrl,
 426
 427         language: this.localeId,
 428
 429         subtitle: urlOptions.subtitle,
 430
 431         userWatching: this.user && this.user.videosHistoryEnabled === true ? {
 432           url: this.videoService.getUserWatchingVideoUrl(this.video.uuid),
 433           authorizationHeader: this.authService.getRequestHeaderValue()
 434         } : undefined,
 435
 436         serverUrl: environment.apiUrl,
 437
 438         videoCaptions: playerCaptions
 439       },
 440
 441       webtorrent: {
 442         videoFiles: this.video.files
 443       }
 444     }
 445
 446     const mode: PlayerMode = urlOptions.playerMode === 'p2p-media-loader' ? 'p2p-media-loader' : 'webtorrent'
 447
 448     if (mode === 'p2p-media-loader') {
 449       const hlsPlaylist = this.video.getHlsPlaylist()
 450
 451       const p2pMediaLoader = {
 452         playlistUrl: hlsPlaylist.playlistUrl,
 453         segmentsSha256Url: hlsPlaylist.segmentsSha256Url,
 454         redundancyBaseUrls: hlsPlaylist.redundancies.map(r => r.baseUrl),
 455         trackerAnnounce: this.video.trackerUrls,
 456         videoFiles: this.video.files
 457       } as P2PMediaLoaderOptions
 458
 459       Object.assign(options, { p2pMediaLoader })
 460     }
 461
 462     this.zone.runOutsideAngular(async () => {
 463       this.player = await PeertubePlayerManager.initialize(mode, options)
 464       this.player.on('customError', ({ err }: { err: any }) => this.handleError(err))
 465     })
 466
 467     this.setVideoDescriptionHTML()
 468     this.setVideoLikesBarTooltipText()
 469
 470     this.setOpenGraphTags()
 471     this.checkUserRating()
 472   }
 473
 474   private setRating (nextRating: UserVideoRateType) {
 475     let method
 476     switch (nextRating) {
 477       case 'like':
 478         method = this.videoService.setVideoLike
 479         break
 480       case 'dislike':
 481         method = this.videoService.setVideoDislike
 482         break
 483       case 'none':
 484         method = this.videoService.unsetVideoLike
 485         break
 486     }
 487
 488     method.call(this.videoService, this.video.id)
 489           .subscribe(
 490             () => {
 491               // Update the video like attribute
 492               this.updateVideoRating(this.userRating, nextRating)
 493               this.userRating = nextRating
 494             },
 495
 496             (err: { message: string }) => this.notifier.error(err.message)
 497           )
 498   }
 499
 500   private updateVideoRating (oldRating: UserVideoRateType, newRating: UserVideoRateType) {
 501     let likesToIncrement = 0
 502     let dislikesToIncrement = 0
 503
 504     if (oldRating) {
 505       if (oldRating === 'like') likesToIncrement--
 506       if (oldRating === 'dislike') dislikesToIncrement--
 507     }
 508
 509     if (newRating === 'like') likesToIncrement++
 510     if (newRating === 'dislike') dislikesToIncrement++
 511
 512     this.video.likes += likesToIncrement
 513     this.video.dislikes += dislikesToIncrement
 514
 515     this.video.buildLikeAndDislikePercents()
 516     this.setVideoLikesBarTooltipText()
 517   }
 518
 519   private setOpenGraphTags () {
 520     this.metaService.setTitle(this.video.name)
 521
 522     this.metaService.setTag('og:type', 'video')
 523
 524     this.metaService.setTag('og:title', this.video.name)
 525     this.metaService.setTag('name', this.video.name)
 526
 527     this.metaService.setTag('og:description', this.video.description)
 528     this.metaService.setTag('description', this.video.description)
 529
 530     this.metaService.setTag('og:image', this.video.previewPath)
 531
 532     this.metaService.setTag('og:duration', this.video.duration.toString())
 533
 534     this.metaService.setTag('og:site_name', 'PeerTube')
 535
 536     this.metaService.setTag('og:url', window.location.href)
 537     this.metaService.setTag('url', window.location.href)
 538   }
 539
 540   private isAutoplay () {
 541     // We'll jump to the thread id, so do not play the video
 542     if (this.route.snapshot.params['threadId']) return false
 543
 544     // Otherwise true by default
 545     if (!this.user) return true
 546
 547     // Be sure the autoPlay is set to false
 548     return this.user.autoPlayVideo !== false
 549   }
 550
 551   private flushPlayer () {
 552     // Remove player if it exists
 553     if (this.player) {
 554       this.player.dispose()
 555       this.player = undefined
 556     }
 557   }
 558 }