Refactor live manager

1 files changed, 0 insertions, 633 deletions

diff --git a/server/lib/live-manager.ts b/server/lib/live-manager.ts
deleted file mode 100644
index 563ba2578..000000000
--- a/server/lib/live-manager.ts
+++ /dev/null
@@ -1,633 +0,0 @@
-
-import * as Bluebird from 'bluebird'
-import * as chokidar from 'chokidar'
-import { FfmpegCommand } from 'fluent-ffmpeg'
-import { appendFile, ensureDir, readFile, stat } from 'fs-extra'
-import { createServer, Server } from 'net'
-import { basename, join } from 'path'
-import { isTestInstance } from '@server/helpers/core-utils'
-import { getLiveMuxingCommand, getLiveTranscodingCommand } from '@server/helpers/ffmpeg-utils'
-import { computeResolutionsToTranscode, getVideoFileFPS, getVideoFileResolution } from '@server/helpers/ffprobe-utils'
-import { logger, loggerTagsFactory } from '@server/helpers/logger'
-import { CONFIG, registerConfigChangedHandler } from '@server/initializers/config'
-import { MEMOIZE_TTL, P2P_MEDIA_LOADER_PEER_VERSION, VIDEO_LIVE, VIEW_LIFETIME, WEBSERVER } from '@server/initializers/constants'
-import { UserModel } from '@server/models/user/user'
-import { VideoModel } from '@server/models/video/video'
-import { VideoFileModel } from '@server/models/video/video-file'
-import { VideoLiveModel } from '@server/models/video/video-live'
-import { VideoStreamingPlaylistModel } from '@server/models/video/video-streaming-playlist'
-import { MStreamingPlaylist, MStreamingPlaylistVideo, MUserId, MVideoLive, MVideoLiveVideo } from '@server/types/models'
-import { VideoState, VideoStreamingPlaylistType } from '@shared/models'
-import { federateVideoIfNeeded } from './activitypub/videos'
-import { buildSha256Segment } from './hls'
-import { JobQueue } from './job-queue'
-import { cleanupLive } from './job-queue/handlers/video-live-ending'
-import { PeerTubeSocket } from './peertube-socket'
-import { VideoTranscodingProfilesManager } from './transcoding/video-transcoding-profiles'
-import { isAbleToUploadVideo } from './user'
-import { getHLSDirectory } from './video-paths'
-
-import memoizee = require('memoizee')
-const NodeRtmpSession = require('node-media-server/node_rtmp_session')
-const context = require('node-media-server/node_core_ctx')
-const nodeMediaServerLogger = require('node-media-server/node_core_logger')
-
-// Disable node media server logs
-nodeMediaServerLogger.setLogType(0)
-
-const config = {
-  rtmp: {
-    port: CONFIG.LIVE.RTMP.PORT,
-    chunk_size: VIDEO_LIVE.RTMP.CHUNK_SIZE,
-    gop_cache: VIDEO_LIVE.RTMP.GOP_CACHE,
-    ping: VIDEO_LIVE.RTMP.PING,
-    ping_timeout: VIDEO_LIVE.RTMP.PING_TIMEOUT
-  },
-  transcoding: {
-    ffmpeg: 'ffmpeg'
-  }
-}
-
-const lTags = loggerTagsFactory('live')
-
-class LiveManager {
-
-  private static instance: LiveManager
-
-  private readonly transSessions = new Map<string, FfmpegCommand>()
-  private readonly videoSessions = new Map<number, string>()
-  // Values are Date().getTime()
-  private readonly watchersPerVideo = new Map<number, number[]>()
-  private readonly segmentsSha256 = new Map<string, Map<string, string>>()
-  private readonly livesPerUser = new Map<number, { liveId: number, videoId: number, size: number }[]>()
-
-  private readonly isAbleToUploadVideoWithCache = memoizee((userId: number) => {
-    return isAbleToUploadVideo(userId, 1000)
-  }, { maxAge: MEMOIZE_TTL.LIVE_ABLE_TO_UPLOAD })
-
-  private readonly hasClientSocketsInBadHealthWithCache = memoizee((sessionId: string) => {
-    return this.hasClientSocketsInBadHealth(sessionId)
-  }, { maxAge: MEMOIZE_TTL.LIVE_CHECK_SOCKET_HEALTH })
-
-  private rtmpServer: Server
-
-  private constructor () {
-  }
-
-  init () {
-    const events = this.getContext().nodeEvent
-    events.on('postPublish', (sessionId: string, streamPath: string) => {
-      logger.debug('RTMP received stream', { id: sessionId, streamPath, ...lTags(sessionId) })
-
-      const splittedPath = streamPath.split('/')
-      if (splittedPath.length !== 3 || splittedPath[1] !== VIDEO_LIVE.RTMP.BASE_PATH) {
-        logger.warn('Live path is incorrect.', { streamPath, ...lTags(sessionId) })
-        return this.abortSession(sessionId)
-      }
-
-      this.handleSession(sessionId, streamPath, splittedPath[2])
-        .catch(err => logger.error('Cannot handle sessions.', { err, ...lTags(sessionId) }))
-    })
-
-    events.on('donePublish', sessionId => {
-      logger.info('Live session ended.', { sessionId, ...lTags(sessionId) })
-    })
-
-    registerConfigChangedHandler(() => {
-      if (!this.rtmpServer && CONFIG.LIVE.ENABLED === true) {
-        this.run()
-        return
-      }
-
-      if (this.rtmpServer && CONFIG.LIVE.ENABLED === false) {
-        this.stop()
-      }
-    })
-
-    // Cleanup broken lives, that were terminated by a server restart for example
-    this.handleBrokenLives()
-      .catch(err => logger.error('Cannot handle broken lives.', { err, ...lTags() }))
-
-    setInterval(() => this.updateLiveViews(), VIEW_LIFETIME.LIVE)
-  }
-
-  run () {
-    logger.info('Running RTMP server on port %d', config.rtmp.port, lTags())
-
-    this.rtmpServer = createServer(socket => {
-      const session = new NodeRtmpSession(config, socket)
-
-      session.run()
-    })
-
-    this.rtmpServer.on('error', err => {
-      logger.error('Cannot run RTMP server.', { err, ...lTags() })
-    })
-
-    this.rtmpServer.listen(CONFIG.LIVE.RTMP.PORT)
-  }
-
-  stop () {
-    logger.info('Stopping RTMP server.', lTags())
-
-    this.rtmpServer.close()
-    this.rtmpServer = undefined
-
-    // Sessions is an object
-    this.getContext().sessions.forEach((session: any) => {
-      if (session instanceof NodeRtmpSession) {
-        session.stop()
-      }
-    })
-  }
-
-  isRunning () {
-    return !!this.rtmpServer
-  }
-
-  getSegmentsSha256 (videoUUID: string) {
-    return this.segmentsSha256.get(videoUUID)
-  }
-
-  stopSessionOf (videoId: number) {
-    const sessionId = this.videoSessions.get(videoId)
-    if (!sessionId) return
-
-    this.videoSessions.delete(videoId)
-    this.abortSession(sessionId)
-  }
-
-  getLiveQuotaUsedByUser (userId: number) {
-    const currentLives = this.livesPerUser.get(userId)
-    if (!currentLives) return 0
-
-    return currentLives.reduce((sum, obj) => sum + obj.size, 0)
-  }
-
-  addViewTo (videoId: number) {
-    if (this.videoSessions.has(videoId) === false) return
-
-    let watchers = this.watchersPerVideo.get(videoId)
-
-    if (!watchers) {
-      watchers = []
-      this.watchersPerVideo.set(videoId, watchers)
-    }
-
-    watchers.push(new Date().getTime())
-  }
-
-  cleanupShaSegments (videoUUID: string) {
-    this.segmentsSha256.delete(videoUUID)
-  }
-
-  addSegmentToReplay (hlsVideoPath: string, segmentPath: string) {
-    const segmentName = basename(segmentPath)
-    const dest = join(hlsVideoPath, VIDEO_LIVE.REPLAY_DIRECTORY, this.buildConcatenatedName(segmentName))
-
-    return readFile(segmentPath)
-      .then(data => appendFile(dest, data))
-      .catch(err => logger.error('Cannot copy segment %s to replay directory.', segmentPath, { err, ...lTags() }))
-  }
-
-  buildConcatenatedName (segmentOrPlaylistPath: string) {
-    const num = basename(segmentOrPlaylistPath).match(/^(\d+)(-|\.)/)
-
-    return 'concat-' + num[1] + '.ts'
-  }
-
-  private processSegments (hlsVideoPath: string, videoUUID: string, videoLive: MVideoLive, segmentPaths: string[]) {
-    Bluebird.mapSeries(segmentPaths, async previousSegment => {
-      // Add sha hash of previous segments, because ffmpeg should have finished generating them
-      await this.addSegmentSha(videoUUID, previousSegment)
-
-      if (videoLive.saveReplay) {
-        await this.addSegmentToReplay(hlsVideoPath, previousSegment)
-      }
-    }).catch(err => logger.error('Cannot process segments in %s', hlsVideoPath, { err, ...lTags(videoUUID) }))
-  }
-
-  private getContext () {
-    return context
-  }
-
-  private abortSession (id: string) {
-    const session = this.getContext().sessions.get(id)
-    if (session) {
-      session.stop()
-      this.getContext().sessions.delete(id)
-    }
-
-    const transSession = this.transSessions.get(id)
-    if (transSession) {
-      transSession.kill('SIGINT')
-      this.transSessions.delete(id)
-    }
-  }
-
-  private async handleSession (sessionId: string, streamPath: string, streamKey: string) {
-    const videoLive = await VideoLiveModel.loadByStreamKey(streamKey)
-    if (!videoLive) {
-      logger.warn('Unknown live video with stream key %s.', streamKey, lTags(sessionId))
-      return this.abortSession(sessionId)
-    }
-
-    const video = videoLive.Video
-    if (video.isBlacklisted()) {
-      logger.warn('Video is blacklisted. Refusing stream %s.', streamKey, lTags(sessionId, video.uuid))
-      return this.abortSession(sessionId)
-    }
-
-    // Cleanup old potential live files (could happen with a permanent live)
-    this.cleanupShaSegments(video.uuid)
-
-    const oldStreamingPlaylist = await VideoStreamingPlaylistModel.loadHLSPlaylistByVideo(video.id)
-    if (oldStreamingPlaylist) {
-      await cleanupLive(video, oldStreamingPlaylist)
-    }
-
-    this.videoSessions.set(video.id, sessionId)
-
-    const playlistUrl = WEBSERVER.URL + VideoStreamingPlaylistModel.getHlsMasterPlaylistStaticPath(video.uuid)
-
-    const session = this.getContext().sessions.get(sessionId)
-    const rtmpUrl = 'rtmp://127.0.0.1:' + config.rtmp.port + streamPath
-
-    const [ resolutionResult, fps ] = await Promise.all([
-      getVideoFileResolution(rtmpUrl),
-      getVideoFileFPS(rtmpUrl)
-    ])
-
-    const resolutionsEnabled = CONFIG.LIVE.TRANSCODING.ENABLED
-      ? computeResolutionsToTranscode(resolutionResult.videoFileResolution, 'live')
-      : []
-
-    const allResolutions = resolutionsEnabled.concat([ session.videoHeight ])
-
-    logger.info(
-      'Will mux/transcode live video of original resolution %d.', session.videoHeight,
-      { allResolutions, ...lTags(sessionId, video.uuid) }
-    )
-
-    const [ videoStreamingPlaylist ] = await VideoStreamingPlaylistModel.upsert({
-      videoId: video.id,
-      playlistUrl,
-      segmentsSha256Url: WEBSERVER.URL + VideoStreamingPlaylistModel.getHlsSha256SegmentsStaticPath(video.uuid, video.isLive),
-      p2pMediaLoaderInfohashes: VideoStreamingPlaylistModel.buildP2PMediaLoaderInfoHashes(playlistUrl, allResolutions),
-      p2pMediaLoaderPeerVersion: P2P_MEDIA_LOADER_PEER_VERSION,
-
-      type: VideoStreamingPlaylistType.HLS
-    }, { returning: true }) as [ MStreamingPlaylist, boolean ]
-
-    return this.runMuxing({
-      sessionId,
-      videoLive,
-      playlist: Object.assign(videoStreamingPlaylist, { Video: video }),
-      rtmpUrl,
-      fps,
-      allResolutions
-    })
-  }
-
-  private async runMuxing (options: {
-    sessionId: string
-    videoLive: MVideoLiveVideo
-    playlist: MStreamingPlaylistVideo
-    rtmpUrl: string
-    fps: number
-    allResolutions: number[]
-  }) {
-    const { sessionId, videoLive, playlist, allResolutions, fps, rtmpUrl } = options
-    const startStreamDateTime = new Date().getTime()
-
-    const user = await UserModel.loadByLiveId(videoLive.id)
-    if (!this.livesPerUser.has(user.id)) {
-      this.livesPerUser.set(user.id, [])
-    }
-
-    const currentUserLive = { liveId: videoLive.id, videoId: videoLive.videoId, size: 0 }
-    const livesOfUser = this.livesPerUser.get(user.id)
-    livesOfUser.push(currentUserLive)
-
-    for (let i = 0; i < allResolutions.length; i++) {
-      const resolution = allResolutions[i]
-
-      const file = new VideoFileModel({
-        resolution,
-        size: -1,
-        extname: '.ts',
-        infoHash: null,
-        fps,
-        videoStreamingPlaylistId: playlist.id
-      })
-
-      VideoFileModel.customUpsert(file, 'streaming-playlist', null)
-        .catch(err => logger.error('Cannot create file for live streaming.', { err, ...lTags(sessionId, videoLive.Video.uuid) }))
-    }
-
-    const outPath = getHLSDirectory(videoLive.Video)
-    await ensureDir(outPath)
-
-    const replayDirectory = join(outPath, VIDEO_LIVE.REPLAY_DIRECTORY)
-
-    if (videoLive.saveReplay === true) {
-      await ensureDir(replayDirectory)
-    }
-
-    const videoUUID = videoLive.Video.uuid
-
-    const ffmpegExec = CONFIG.LIVE.TRANSCODING.ENABLED
-      ? await getLiveTranscodingCommand({
-        rtmpUrl,
-        outPath,
-        resolutions: allResolutions,
-        fps,
-        availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
-        profile: CONFIG.LIVE.TRANSCODING.PROFILE
-      })
-      : getLiveMuxingCommand(rtmpUrl, outPath)
-
-    logger.info('Running live muxing/transcoding for %s.', videoUUID, lTags(sessionId, videoUUID))
-    this.transSessions.set(sessionId, ffmpegExec)
-
-    const tsWatcher = chokidar.watch(outPath + '/*.ts')
-
-    const segmentsToProcessPerPlaylist: { [playlistId: string]: string[] } = {}
-    const playlistIdMatcher = /^([\d+])-/
-
-    const addHandler = segmentPath => {
-      logger.debug('Live add handler of %s.', segmentPath, lTags(sessionId, videoUUID))
-
-      const playlistId = basename(segmentPath).match(playlistIdMatcher)[0]
-
-      const segmentsToProcess = segmentsToProcessPerPlaylist[playlistId] || []
-      this.processSegments(outPath, videoUUID, videoLive, segmentsToProcess)
-
-      segmentsToProcessPerPlaylist[playlistId] = [ segmentPath ]
-
-      if (this.hasClientSocketsInBadHealthWithCache(sessionId)) {
-        logger.error(
-          'Too much data in client socket stream (ffmpeg is too slow to transcode the video).' +
-          ' Stopping session of video %s.', videoUUID,
-          lTags(sessionId, videoUUID)
-        )
-
-        this.stopSessionOf(videoLive.videoId)
-        return
-      }
-
-      // Duration constraint check
-      if (this.isDurationConstraintValid(startStreamDateTime) !== true) {
-        logger.info('Stopping session of %s: max duration exceeded.', videoUUID, lTags(sessionId, videoUUID))
-
-        this.stopSessionOf(videoLive.videoId)
-        return
-      }
-
-      // Check user quota if the user enabled replay saving
-      if (videoLive.saveReplay === true) {
-        stat(segmentPath)
-          .then(segmentStat => {
-            currentUserLive.size += segmentStat.size
-          })
-          .then(() => this.isQuotaConstraintValid(user, videoLive))
-          .then(quotaValid => {
-            if (quotaValid !== true) {
-              logger.info('Stopping session of %s: user quota exceeded.', videoUUID, lTags(sessionId, videoUUID))
-
-              this.stopSessionOf(videoLive.videoId)
-            }
-          })
-          .catch(err => logger.error('Cannot stat %s or check quota of %d.', segmentPath, user.id, { err, ...lTags(sessionId, videoUUID) }))
-      }
-    }
-
-    const deleteHandler = segmentPath => this.removeSegmentSha(videoUUID, segmentPath)
-
-    tsWatcher.on('add', p => addHandler(p))
-    tsWatcher.on('unlink', p => deleteHandler(p))
-
-    const masterWatcher = chokidar.watch(outPath + '/master.m3u8')
-    masterWatcher.on('add', async () => {
-      try {
-        const video = await VideoModel.loadAndPopulateAccountAndServerAndTags(videoLive.videoId)
-
-        video.state = VideoState.PUBLISHED
-        await video.save()
-        videoLive.Video = video
-
-        setTimeout(() => {
-          federateVideoIfNeeded(video, false)
-            .catch(err => logger.error('Cannot federate live video %s.', video.url, { err, ...lTags(sessionId, videoUUID) }))
-
-          PeerTubeSocket.Instance.sendVideoLiveNewState(video)
-        }, VIDEO_LIVE.SEGMENT_TIME_SECONDS * 1000 * VIDEO_LIVE.EDGE_LIVE_DELAY_SEGMENTS_NOTIFICATION)
-
-      } catch (err) {
-        logger.error('Cannot save/federate live video %d.', videoLive.videoId, { err, ...lTags(sessionId, videoUUID) })
-      } finally {
-        masterWatcher.close()
-          .catch(err => logger.error('Cannot close master watcher of %s.', outPath, { err, ...lTags(sessionId, videoUUID) }))
-      }
-    })
-
-    const onFFmpegEnded = () => {
-      logger.info('RTMP transmuxing for video %s ended. Scheduling cleanup', rtmpUrl, lTags(sessionId, videoUUID))
-
-      this.transSessions.delete(sessionId)
-
-      this.watchersPerVideo.delete(videoLive.videoId)
-      this.videoSessions.delete(videoLive.videoId)
-
-      const newLivesPerUser = this.livesPerUser.get(user.id)
-                                               .filter(o => o.liveId !== videoLive.id)
-      this.livesPerUser.set(user.id, newLivesPerUser)
-
-      setTimeout(() => {
-        // Wait latest segments generation, and close watchers
-
-        Promise.all([ tsWatcher.close(), masterWatcher.close() ])
-          .then(() => {
-            // Process remaining segments hash
-            for (const key of Object.keys(segmentsToProcessPerPlaylist)) {
-              this.processSegments(outPath, videoUUID, videoLive, segmentsToProcessPerPlaylist[key])
-            }
-          })
-          .catch(err => {
-            logger.error(
-              'Cannot close watchers of %s or process remaining hash segments.', outPath,
-              { err, ...lTags(sessionId, videoUUID) }
-            )
-          })
-
-        this.onEndTransmuxing(videoLive.Video.id)
-          .catch(err => logger.error('Error in closed transmuxing.', { err, ...lTags(sessionId, videoUUID) }))
-      }, 1000)
-    }
-
-    ffmpegExec.on('error', (err, stdout, stderr) => {
-      onFFmpegEnded()
-
-      // Don't care that we killed the ffmpeg process
-      if (err?.message?.includes('Exiting normally')) return
-
-      logger.error('Live transcoding error.', { err, stdout, stderr, ...lTags(sessionId, videoUUID) })
-
-      this.abortSession(sessionId)
-    })
-
-    ffmpegExec.on('end', () => onFFmpegEnded())
-
-    ffmpegExec.run()
-  }
-
-  private async onEndTransmuxing (videoUUID: string, cleanupNow = false) {
-    try {
-      const fullVideo = await VideoModel.loadAndPopulateAccountAndServerAndTags(videoUUID)
-      if (!fullVideo) return
-
-      const live = await VideoLiveModel.loadByVideoId(fullVideo.id)
-
-      if (!live.permanentLive) {
-        JobQueue.Instance.createJob({
-          type: 'video-live-ending',
-          payload: {
-            videoId: fullVideo.id
-          }
-        }, { delay: cleanupNow ? 0 : VIDEO_LIVE.CLEANUP_DELAY })
-
-        fullVideo.state = VideoState.LIVE_ENDED
-      } else {
-        fullVideo.state = VideoState.WAITING_FOR_LIVE
-      }
-
-      await fullVideo.save()
-
-      PeerTubeSocket.Instance.sendVideoLiveNewState(fullVideo)
-
-      await federateVideoIfNeeded(fullVideo, false)
-    } catch (err) {
-      logger.error('Cannot save/federate new video state of live streaming of video %d.', videoUUID, { err, ...lTags(videoUUID) })
-    }
-  }
-
-  private async addSegmentSha (videoUUID: string, segmentPath: string) {
-    const segmentName = basename(segmentPath)
-    logger.debug('Adding live sha segment %s.', segmentPath, lTags(videoUUID))
-
-    const shaResult = await buildSha256Segment(segmentPath)
-
-    if (!this.segmentsSha256.has(videoUUID)) {
-      this.segmentsSha256.set(videoUUID, new Map())
-    }
-
-    const filesMap = this.segmentsSha256.get(videoUUID)
-    filesMap.set(segmentName, shaResult)
-  }
-
-  private removeSegmentSha (videoUUID: string, segmentPath: string) {
-    const segmentName = basename(segmentPath)
-
-    logger.debug('Removing live sha segment %s.', segmentPath, lTags(videoUUID))
-
-    const filesMap = this.segmentsSha256.get(videoUUID)
-    if (!filesMap) {
-      logger.warn('Unknown files map to remove sha for %s.', videoUUID, lTags(videoUUID))
-      return
-    }
-
-    if (!filesMap.has(segmentName)) {
-      logger.warn('Unknown segment in files map for video %s and segment %s.', videoUUID, segmentPath, lTags(videoUUID))
-      return
-    }
-
-    filesMap.delete(segmentName)
-  }
-
-  private isDurationConstraintValid (streamingStartTime: number) {
-    const maxDuration = CONFIG.LIVE.MAX_DURATION
-    // No limit
-    if (maxDuration < 0) return true
-
-    const now = new Date().getTime()
-    const max = streamingStartTime + maxDuration
-
-    return now <= max
-  }
-
-  private hasClientSocketsInBadHealth (sessionId: string) {
-    const rtmpSession = this.getContext().sessions.get(sessionId)
-
-    if (!rtmpSession) {
-      logger.warn('Cannot get session %s to check players socket health.', sessionId, lTags(sessionId))
-      return
-    }
-
-    for (const playerSessionId of rtmpSession.players) {
-      const playerSession = this.getContext().sessions.get(playerSessionId)
-
-      if (!playerSession) {
-        logger.error('Cannot get player session %s to check socket health.', playerSession, lTags(sessionId))
-        continue
-      }
-
-      if (playerSession.socket.writableLength > VIDEO_LIVE.MAX_SOCKET_WAITING_DATA) {
-        return true
-      }
-    }
-
-    return false
-  }
-
-  private async isQuotaConstraintValid (user: MUserId, live: MVideoLive) {
-    if (live.saveReplay !== true) return true
-
-    return this.isAbleToUploadVideoWithCache(user.id)
-  }
-
-  private async updateLiveViews () {
-    if (!this.isRunning()) return
-
-    if (!isTestInstance()) logger.info('Updating live video views.', lTags())
-
-    for (const videoId of this.watchersPerVideo.keys()) {
-      const notBefore = new Date().getTime() - VIEW_LIFETIME.LIVE
-
-      const watchers = this.watchersPerVideo.get(videoId)
-
-      const numWatchers = watchers.length
-
-      const video = await VideoModel.loadAndPopulateAccountAndServerAndTags(videoId)
-      video.views = numWatchers
-      await video.save()
-
-      await federateVideoIfNeeded(video, false)
-
-      PeerTubeSocket.Instance.sendVideoViewsUpdate(video)
-
-      // Only keep not expired watchers
-      const newWatchers = watchers.filter(w => w > notBefore)
-      this.watchersPerVideo.set(videoId, newWatchers)
-
-      logger.debug('New live video views for %s is %d.', video.url, numWatchers, lTags())
-    }
-  }
-
-  private async handleBrokenLives () {
-    const videoUUIDs = await VideoModel.listPublishedLiveUUIDs()
-
-    for (const uuid of videoUUIDs) {
-      await this.onEndTransmuxing(uuid, true)
-    }
-  }
-
-  static get Instance () {
-    return this.instance || (this.instance = new this())
-  }
-}
-
-// ---------------------------------------------------------------------------
-
-export {
-  LiveManager
-}