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