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