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