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