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, VideoPlaylistPrivacy, 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   P2PMediaLoaderOptions,
  24   PeertubePlayerManager,
  25   PeertubePlayerManagerOptions,
  26   PlayerMode
  27 } from '../../../assets/player/peertube-player-manager'
  28 import { VideoPlaylist } from '@app/shared/video-playlist/video-playlist.model'
  29 import { VideoPlaylistService } from '@app/shared/video-playlist/video-playlist.service'
  30 import { ComponentPagination } from '@app/shared/rest/component-pagination.model'
  31 import { Video } from '@app/shared/video/video.model'
  32 import { isWebRTCDisabled } from '../../../assets/player/utils'
  33
  34 @Component({
  35   selector: 'my-video-watch',
  36   templateUrl: './video-watch.component.html',
  37   styleUrls: [ './video-watch.component.scss' ]
  38 })
  39 export class VideoWatchComponent implements OnInit, OnDestroy {
  40   private static LOCAL_STORAGE_PRIVACY_CONCERN_KEY = 'video-watch-privacy-concern'
  41
  42   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  43   @ViewChild('videoSupportModal') videoSupportModal: VideoSupportComponent
  44   @ViewChild('subscribeButton') subscribeButton: SubscribeButtonComponent
  45
  46   player: any
  47   playerElement: HTMLVideoElement
  48   theaterEnabled = false
  49   userRating: UserVideoRateType = null
  50   video: VideoDetails = null
  51   descriptionLoading = false
  52
  53   playlist: VideoPlaylist = null
  54   playlistVideos: Video[] = []
  55   playlistPagination: ComponentPagination = {
  56     currentPage: 1,
  57     itemsPerPage: 30,
  58     totalItems: null
  59   }
  60   noPlaylistVideos = false
  61   currentPlaylistPosition = 1
  62
  63   completeDescriptionShown = false
  64   completeVideoDescription: string
  65   shortVideoDescription: string
  66   videoHTMLDescription = ''
  67   likesBarTooltipText = ''
  68   hasAlreadyAcceptedPrivacyConcern = false
  69   remoteServerDown = false
  70   hotkeys: Hotkey[]
  71
  72   private currentTime: number
  73   private paramsSub: Subscription
  74   private queryParamsSub: Subscription
  75   private configSub: Subscription
  76
  77   constructor (
  78     private elementRef: ElementRef,
  79     private changeDetector: ChangeDetectorRef,
  80     private route: ActivatedRoute,
  81     private router: Router,
  82     private videoService: VideoService,
  83     private playlistService: VideoPlaylistService,
  84     private videoBlacklistService: VideoBlacklistService,
  85     private confirmService: ConfirmService,
  86     private metaService: MetaService,
  87     private authService: AuthService,
  88     private serverService: ServerService,
  89     private restExtractor: RestExtractor,
  90     private notifier: Notifier,
  91     private markdownService: MarkdownService,
  92     private zone: NgZone,
  93     private redirectService: RedirectService,
  94     private videoCaptionService: VideoCaptionService,
  95     private i18n: I18n,
  96     private hotkeysService: HotkeysService,
  97     @Inject(LOCALE_ID) private localeId: string
  98   ) {}
  99
 100   get user () {
 101     return this.authService.getUser()
 102   }
 103
 104   ngOnInit () {
 105     this.configSub = this.serverService.configLoaded
 106         .subscribe(() => {
 107           if (
 108             isWebRTCDisabled() ||
 109             this.serverService.getConfig().tracker.enabled === false ||
 110             peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
 111           ) {
 112             this.hasAlreadyAcceptedPrivacyConcern = true
 113           }
 114         })
 115
 116     this.paramsSub = this.route.params.subscribe(routeParams => {
 117       const videoId = routeParams[ 'videoId' ]
 118       if (videoId) this.loadVideo(videoId)
 119
 120       const playlistId = routeParams[ 'playlistId' ]
 121       if (playlistId) this.loadPlaylist(playlistId)
 122     })
 123
 124     this.queryParamsSub = this.route.queryParams.subscribe(queryParams => {
 125       const videoId = queryParams[ 'videoId' ]
 126       if (videoId) this.loadVideo(videoId)
 127     })
 128
 129     this.hotkeys = [
 130       new Hotkey('shift+l', (event: KeyboardEvent): boolean => {
 131         this.setLike()
 132         return false
 133       }, undefined, this.i18n('Like the video')),
 134       new Hotkey('shift+d', (event: KeyboardEvent): boolean => {
 135         this.setDislike()
 136         return false
 137       }, undefined, this.i18n('Dislike the video')),
 138       new Hotkey('shift+s', (event: KeyboardEvent): boolean => {
 139         this.subscribeButton.subscribed ?
 140           this.subscribeButton.unsubscribe() :
 141           this.subscribeButton.subscribe()
 142         return false
 143       }, undefined, this.i18n('Subscribe to the account'))
 144     ]
 145     if (this.isUserLoggedIn()) this.hotkeysService.add(this.hotkeys)
 146   }
 147
 148   ngOnDestroy () {
 149     this.flushPlayer()
 150
 151     // Unsubscribe subscriptions
 152     if (this.paramsSub) this.paramsSub.unsubscribe()
 153     if (this.queryParamsSub) this.queryParamsSub.unsubscribe()
 154
 155     // Unbind hotkeys
 156     if (this.isUserLoggedIn()) this.hotkeysService.remove(this.hotkeys)
 157   }
 158
 159   setLike () {
 160     if (this.isUserLoggedIn() === false) return
 161     if (this.userRating === 'like') {
 162       // Already liked this video
 163       this.setRating('none')
 164     } else {
 165       this.setRating('like')
 166     }
 167   }
 168
 169   setDislike () {
 170     if (this.isUserLoggedIn() === false) return
 171     if (this.userRating === 'dislike') {
 172       // Already disliked this video
 173       this.setRating('none')
 174     } else {
 175       this.setRating('dislike')
 176     }
 177   }
 178
 179   showMoreDescription () {
 180     if (this.completeVideoDescription === undefined) {
 181       return this.loadCompleteDescription()
 182     }
 183
 184     this.updateVideoDescription(this.completeVideoDescription)
 185     this.completeDescriptionShown = true
 186   }
 187
 188   showLessDescription () {
 189     this.updateVideoDescription(this.shortVideoDescription)
 190     this.completeDescriptionShown = false
 191   }
 192
 193   loadCompleteDescription () {
 194     this.descriptionLoading = true
 195
 196     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 197         .subscribe(
 198           description => {
 199             this.completeDescriptionShown = true
 200             this.descriptionLoading = false
 201
 202             this.shortVideoDescription = this.video.description
 203             this.completeVideoDescription = description
 204
 205             this.updateVideoDescription(this.completeVideoDescription)
 206           },
 207
 208           error => {
 209             this.descriptionLoading = false
 210             this.notifier.error(error.message)
 211           }
 212         )
 213   }
 214
 215   showSupportModal () {
 216     this.videoSupportModal.show()
 217   }
 218
 219   showShareModal () {
 220     this.videoShareModal.show(this.currentTime)
 221   }
 222
 223   isUserLoggedIn () {
 224     return this.authService.isLoggedIn()
 225   }
 226
 227   getVideoTags () {
 228     if (!this.video || Array.isArray(this.video.tags) === false) return []
 229
 230     return this.video.tags
 231   }
 232
 233   isVideoRemovable () {
 234     return this.video.isRemovableBy(this.authService.getUser())
 235   }
 236
 237   onVideoRemoved () {
 238     this.redirectService.redirectToHomepage()
 239   }
 240
 241   acceptedPrivacyConcern () {
 242     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 243     this.hasAlreadyAcceptedPrivacyConcern = true
 244   }
 245
 246   isVideoToTranscode () {
 247     return this.video && this.video.state.id === VideoState.TO_TRANSCODE
 248   }
 249
 250   isVideoDownloadable () {
 251     return this.video && this.video.downloadEnabled
 252   }
 253
 254   isVideoToImport () {
 255     return this.video && this.video.state.id === VideoState.TO_IMPORT
 256   }
 257
 258   hasVideoScheduledPublication () {
 259     return this.video && this.video.scheduledUpdate !== undefined
 260   }
 261
 262   isVideoBlur (video: Video) {
 263     return video.isVideoNSFWForUser(this.user, this.serverService.getConfig())
 264   }
 265
 266   isPlaylistOwned () {
 267     return this.playlist.isLocal === true && this.playlist.ownerAccount.name === this.user.username
 268   }
 269
 270   isUnlistedPlaylist () {
 271     return this.playlist.privacy.id === VideoPlaylistPrivacy.UNLISTED
 272   }
 273
 274   isPrivatePlaylist () {
 275     return this.playlist.privacy.id === VideoPlaylistPrivacy.PRIVATE
 276   }
 277
 278   isPublicPlaylist () {
 279     return this.playlist.privacy.id === VideoPlaylistPrivacy.PUBLIC
 280   }
 281
 282   onPlaylistVideosNearOfBottom () {
 283     // Last page
 284     if (this.playlistPagination.totalItems <= (this.playlistPagination.currentPage * this.playlistPagination.itemsPerPage)) return
 285
 286     this.playlistPagination.currentPage += 1
 287     this.loadPlaylistElements(false)
 288   }
 289
 290   onElementRemoved (video: Video) {
 291     this.playlistVideos = this.playlistVideos.filter(v => v.id !== video.id)
 292
 293     this.playlistPagination.totalItems--
 294   }
 295
 296   private loadVideo (videoId: string) {
 297     // Video did not change
 298     if (this.video && this.video.uuid === videoId) return
 299
 300     if (this.player) this.player.pause()
 301
 302     // Video did change
 303     forkJoin(
 304       this.videoService.getVideo(videoId),
 305       this.videoCaptionService.listCaptions(videoId)
 306     )
 307       .pipe(
 308         // If 401, the video is private or blacklisted so redirect to 404
 309         catchError(err => this.restExtractor.redirectTo404IfNotFound(err, [ 400, 401, 403, 404 ]))
 310       )
 311       .subscribe(([ video, captionsResult ]) => {
 312         const queryParams = this.route.snapshot.queryParams
 313         const startTime = queryParams.start
 314         const stopTime = queryParams.stop
 315         const subtitle = queryParams.subtitle
 316         const playerMode = queryParams.mode
 317
 318         this.onVideoFetched(video, captionsResult.data, { startTime, stopTime, subtitle, playerMode })
 319             .catch(err => this.handleError(err))
 320       })
 321   }
 322
 323   private loadPlaylist (playlistId: string) {
 324     // Playlist did not change
 325     if (this.playlist && this.playlist.uuid === playlistId) return
 326
 327     this.playlistService.getVideoPlaylist(playlistId)
 328       .pipe(
 329         // If 401, the video is private or blacklisted so redirect to 404
 330         catchError(err => this.restExtractor.redirectTo404IfNotFound(err, [ 400, 401, 403, 404 ]))
 331       )
 332       .subscribe(playlist => {
 333         this.playlist = playlist
 334
 335         const videoId = this.route.snapshot.queryParams['videoId']
 336         this.loadPlaylistElements(!videoId)
 337       })
 338   }
 339
 340   private loadPlaylistElements (redirectToFirst = false) {
 341     this.videoService.getPlaylistVideos(this.playlist.uuid, this.playlistPagination)
 342         .subscribe(({ totalVideos, videos }) => {
 343           this.playlistVideos = this.playlistVideos.concat(videos)
 344           this.playlistPagination.totalItems = totalVideos
 345
 346           if (totalVideos === 0) {
 347             this.noPlaylistVideos = true
 348             return
 349           }
 350
 351           this.updatePlaylistIndex()
 352
 353           if (redirectToFirst) {
 354             const extras = {
 355               queryParams: { videoId: this.playlistVideos[ 0 ].uuid },
 356               replaceUrl: true
 357             }
 358             this.router.navigate([], extras)
 359           }
 360         })
 361   }
 362
 363   private updateVideoDescription (description: string) {
 364     this.video.description = description
 365     this.setVideoDescriptionHTML()
 366   }
 367
 368   private async setVideoDescriptionHTML () {
 369     this.videoHTMLDescription = await this.markdownService.textMarkdownToHTML(this.video.description)
 370   }
 371
 372   private setVideoLikesBarTooltipText () {
 373     this.likesBarTooltipText = this.i18n('{{likesNumber}} likes / {{dislikesNumber}} dislikes', {
 374       likesNumber: this.video.likes,
 375       dislikesNumber: this.video.dislikes
 376     })
 377   }
 378
 379   private handleError (err: any) {
 380     const errorMessage: string = typeof err === 'string' ? err : err.message
 381     if (!errorMessage) return
 382
 383     // Display a message in the video player instead of a notification
 384     if (errorMessage.indexOf('from xs param') !== -1) {
 385       this.flushPlayer()
 386       this.remoteServerDown = true
 387       this.changeDetector.detectChanges()
 388
 389       return
 390     }
 391
 392     this.notifier.error(errorMessage)
 393   }
 394
 395   private checkUserRating () {
 396     // Unlogged users do not have ratings
 397     if (this.isUserLoggedIn() === false) return
 398
 399     this.videoService.getUserVideoRating(this.video.id)
 400         .subscribe(
 401           ratingObject => {
 402             if (ratingObject) {
 403               this.userRating = ratingObject.rating
 404             }
 405           },
 406
 407           err => this.notifier.error(err.message)
 408         )
 409   }
 410
 411   private async onVideoFetched (
 412     video: VideoDetails,
 413     videoCaptions: VideoCaption[],
 414     urlOptions: { startTime?: number, stopTime?: number, subtitle?: string, playerMode?: string }
 415   ) {
 416     this.video = video
 417
 418     // Re init attributes
 419     this.descriptionLoading = false
 420     this.completeDescriptionShown = false
 421     this.remoteServerDown = false
 422     this.currentTime = undefined
 423
 424     this.updatePlaylistIndex()
 425
 426     let startTime = urlOptions.startTime || (this.video.userHistory ? this.video.userHistory.currentTime : 0)
 427     // If we are at the end of the video, reset the timer
 428     if (this.video.duration - startTime <= 1) startTime = 0
 429
 430     if (this.isVideoBlur(this.video)) {
 431       const res = await this.confirmService.confirm(
 432         this.i18n('This video contains mature or explicit content. Are you sure you want to watch it?'),
 433         this.i18n('Mature or explicit content')
 434       )
 435       if (res === false) return this.redirectService.redirectToHomepage()
 436     }
 437
 438     // Flush old player if needed
 439     this.flushPlayer()
 440
 441     // Build video element, because videojs remove it on dispose
 442     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#videojs-wrapper')
 443     this.playerElement = document.createElement('video')
 444     this.playerElement.className = 'video-js vjs-peertube-skin'
 445     this.playerElement.setAttribute('playsinline', 'true')
 446     playerElementWrapper.appendChild(this.playerElement)
 447
 448     const playerCaptions = videoCaptions.map(c => ({
 449       label: c.language.label,
 450       language: c.language.id,
 451       src: environment.apiUrl + c.captionPath
 452     }))
 453
 454     const options: PeertubePlayerManagerOptions = {
 455       common: {
 456         autoplay: this.isAutoplay(),
 457
 458         playerElement: this.playerElement,
 459         onPlayerElementChange: (element: HTMLVideoElement) => this.playerElement = element,
 460
 461         videoDuration: this.video.duration,
 462         enableHotkeys: true,
 463         inactivityTimeout: 2500,
 464         poster: this.video.previewUrl,
 465         startTime,
 466         stopTime: urlOptions.stopTime,
 467
 468         theaterMode: true,
 469         captions: videoCaptions.length !== 0,
 470         peertubeLink: false,
 471
 472         videoViewUrl: this.video.privacy.id !== VideoPrivacy.PRIVATE ? this.videoService.getVideoViewUrl(this.video.uuid) : null,
 473         embedUrl: this.video.embedUrl,
 474
 475         language: this.localeId,
 476
 477         subtitle: urlOptions.subtitle,
 478
 479         userWatching: this.user && this.user.videosHistoryEnabled === true ? {
 480           url: this.videoService.getUserWatchingVideoUrl(this.video.uuid),
 481           authorizationHeader: this.authService.getRequestHeaderValue()
 482         } : undefined,
 483
 484         serverUrl: environment.apiUrl,
 485
 486         videoCaptions: playerCaptions
 487       },
 488
 489       webtorrent: {
 490         videoFiles: this.video.files
 491       }
 492     }
 493
 494     const mode: PlayerMode = urlOptions.playerMode === 'p2p-media-loader' ? 'p2p-media-loader' : 'webtorrent'
 495
 496     if (mode === 'p2p-media-loader') {
 497       const hlsPlaylist = this.video.getHlsPlaylist()
 498
 499       const p2pMediaLoader = {
 500         playlistUrl: hlsPlaylist.playlistUrl,
 501         segmentsSha256Url: hlsPlaylist.segmentsSha256Url,
 502         redundancyBaseUrls: hlsPlaylist.redundancies.map(r => r.baseUrl),
 503         trackerAnnounce: this.video.trackerUrls,
 504         videoFiles: this.video.files
 505       } as P2PMediaLoaderOptions
 506
 507       Object.assign(options, { p2pMediaLoader })
 508     }
 509
 510     this.zone.runOutsideAngular(async () => {
 511       this.player = await PeertubePlayerManager.initialize(mode, options)
 512       this.theaterEnabled = this.player.theaterEnabled
 513
 514       this.player.on('customError', ({ err }: { err: any }) => this.handleError(err))
 515
 516       this.player.on('timeupdate', () => {
 517         this.currentTime = Math.floor(this.player.currentTime())
 518       })
 519
 520       this.player.one('ended', () => {
 521         if (this.playlist) {
 522           this.zone.run(() => this.navigateToNextPlaylistVideo())
 523         }
 524       })
 525
 526       this.player.one('stopped', () => {
 527         if (this.playlist) {
 528           this.zone.run(() => this.navigateToNextPlaylistVideo())
 529         }
 530       })
 531
 532       this.player.on('theaterChange', (_: any, enabled: boolean) => {
 533         this.zone.run(() => this.theaterEnabled = enabled)
 534       })
 535     })
 536
 537     this.setVideoDescriptionHTML()
 538     this.setVideoLikesBarTooltipText()
 539
 540     this.setOpenGraphTags()
 541     this.checkUserRating()
 542   }
 543
 544   private setRating (nextRating: UserVideoRateType) {
 545     let method
 546     switch (nextRating) {
 547       case 'like':
 548         method = this.videoService.setVideoLike
 549         break
 550       case 'dislike':
 551         method = this.videoService.setVideoDislike
 552         break
 553       case 'none':
 554         method = this.videoService.unsetVideoLike
 555         break
 556     }
 557
 558     method.call(this.videoService, this.video.id)
 559           .subscribe(
 560             () => {
 561               // Update the video like attribute
 562               this.updateVideoRating(this.userRating, nextRating)
 563               this.userRating = nextRating
 564             },
 565
 566             (err: { message: string }) => this.notifier.error(err.message)
 567           )
 568   }
 569
 570   private updateVideoRating (oldRating: UserVideoRateType, newRating: UserVideoRateType) {
 571     let likesToIncrement = 0
 572     let dislikesToIncrement = 0
 573
 574     if (oldRating) {
 575       if (oldRating === 'like') likesToIncrement--
 576       if (oldRating === 'dislike') dislikesToIncrement--
 577     }
 578
 579     if (newRating === 'like') likesToIncrement++
 580     if (newRating === 'dislike') dislikesToIncrement++
 581
 582     this.video.likes += likesToIncrement
 583     this.video.dislikes += dislikesToIncrement
 584
 585     this.video.buildLikeAndDislikePercents()
 586     this.setVideoLikesBarTooltipText()
 587   }
 588
 589   private updatePlaylistIndex () {
 590     if (this.playlistVideos.length === 0 || !this.video) return
 591
 592     for (const video of this.playlistVideos) {
 593       if (video.id === this.video.id) {
 594         this.currentPlaylistPosition = video.playlistElement.position
 595         return
 596       }
 597     }
 598
 599     // Load more videos to find our video
 600     this.onPlaylistVideosNearOfBottom()
 601   }
 602
 603   private setOpenGraphTags () {
 604     this.metaService.setTitle(this.video.name)
 605
 606     this.metaService.setTag('og:type', 'video')
 607
 608     this.metaService.setTag('og:title', this.video.name)
 609     this.metaService.setTag('name', this.video.name)
 610
 611     this.metaService.setTag('og:description', this.video.description)
 612     this.metaService.setTag('description', this.video.description)
 613
 614     this.metaService.setTag('og:image', this.video.previewPath)
 615
 616     this.metaService.setTag('og:duration', this.video.duration.toString())
 617
 618     this.metaService.setTag('og:site_name', 'PeerTube')
 619
 620     this.metaService.setTag('og:url', window.location.href)
 621     this.metaService.setTag('url', window.location.href)
 622   }
 623
 624   private isAutoplay () {
 625     // We'll jump to the thread id, so do not play the video
 626     if (this.route.snapshot.params['threadId']) return false
 627
 628     // Otherwise true by default
 629     if (!this.user) return true
 630
 631     // Be sure the autoPlay is set to false
 632     return this.user.autoPlayVideo !== false
 633   }
 634
 635   private flushPlayer () {
 636     // Remove player if it exists
 637     if (this.player) {
 638       this.player.dispose()
 639       this.player = undefined
 640     }
 641   }
 642
 643   private navigateToNextPlaylistVideo () {
 644     if (this.currentPlaylistPosition < this.playlistPagination.totalItems) {
 645       const next = this.playlistVideos.find(v => v.playlistElement.position === this.currentPlaylistPosition + 1)
 646
 647       const start = next.playlistElement.startTimestamp
 648       const stop = next.playlistElement.stopTimestamp
 649       this.router.navigate([],{ queryParams: { videoId: next.uuid, start, stop } })
 650     }
 651   }
 652 }