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