server/lib/job-queue/handlers/manage-video-torrent.ts

   1 import { Job } from 'bullmq'
   2 import { extractVideo } from '@server/helpers/video'
   3 import { createTorrentAndSetInfoHash, updateTorrentMetadata } from '@server/helpers/webtorrent'
   4 import { VideoPathManager } from '@server/lib/video-path-manager'
   5 import { VideoModel } from '@server/models/video/video'
   6 import { VideoFileModel } from '@server/models/video/video-file'
   7 import { VideoStreamingPlaylistModel } from '@server/models/video/video-streaming-playlist'
   8 import { ManageVideoTorrentPayload } from '@shared/models'
   9 import { logger } from '../../../helpers/logger'
  10
  11 async function processManageVideoTorrent (job: Job) {
  12   const payload = job.data as ManageVideoTorrentPayload
  13   logger.info('Processing torrent in job %s.', job.id)
  14
  15   if (payload.action === 'create') return doCreateAction(payload)
  16   if (payload.action === 'update-metadata') return doUpdateMetadataAction(payload)
  17 }
  18
  19 // ---------------------------------------------------------------------------
  20
  21 export {
  22   processManageVideoTorrent
  23 }
  24
  25 // ---------------------------------------------------------------------------
  26
  27 async function doCreateAction (payload: ManageVideoTorrentPayload & { action: 'create' }) {
  28   const [ video, file ] = await Promise.all([
  29     loadVideoOrLog(payload.videoId),
  30     loadFileOrLog(payload.videoFileId)
  31   ])
  32
  33   if (!video || !file) return
  34
  35   const fileMutexReleaser = await VideoPathManager.Instance.lockFiles(video.uuid)
  36
  37   try {
  38     await createTorrentAndSetInfoHash(video, file)
  39
  40     // Refresh videoFile because the createTorrentAndSetInfoHash could be long
  41     const refreshedFile = await VideoFileModel.loadWithVideo(file.id)
  42     // File does not exist anymore, remove the generated torrent
  43     if (!refreshedFile) return file.removeTorrent()
  44
  45     refreshedFile.infoHash = file.infoHash
  46     refreshedFile.torrentFilename = file.torrentFilename
  47
  48     await refreshedFile.save()
  49   } finally {
  50     fileMutexReleaser()
  51   }
  52 }
  53
  54 async function doUpdateMetadataAction (payload: ManageVideoTorrentPayload & { action: 'update-metadata' }) {
  55   const [ video, streamingPlaylist, file ] = await Promise.all([
  56     loadVideoOrLog(payload.videoId),
  57     loadStreamingPlaylistOrLog(payload.streamingPlaylistId),
  58     loadFileOrLog(payload.videoFileId)
  59   ])
  60
  61   if ((!video && !streamingPlaylist) || !file) return
  62
  63   const extractedVideo = extractVideo(video || streamingPlaylist)
  64   const fileMutexReleaser = await VideoPathManager.Instance.lockFiles(extractedVideo.uuid)
  65
  66   try {
  67     await updateTorrentMetadata(video || streamingPlaylist, file)
  68
  69     await file.save()
  70   } finally {
  71     fileMutexReleaser()
  72   }
  73 }
  74
  75 async function loadVideoOrLog (videoId: number) {
  76   if (!videoId) return undefined
  77
  78   const video = await VideoModel.load(videoId)
  79   if (!video) {
  80     logger.debug('Do not process torrent for video %d: does not exist anymore.', videoId)
  81   }
  82
  83   return video
  84 }
  85
  86 async function loadStreamingPlaylistOrLog (streamingPlaylistId: number) {
  87   if (!streamingPlaylistId) return undefined
  88
  89   const streamingPlaylist = await VideoStreamingPlaylistModel.loadWithVideo(streamingPlaylistId)
  90   if (!streamingPlaylist) {
  91     logger.debug('Do not process torrent for streaming playlist %d: does not exist anymore.', streamingPlaylistId)
  92   }
  93
  94   return streamingPlaylist
  95 }
  96
  97 async function loadFileOrLog (videoFileId: number) {
  98   if (!videoFileId) return undefined
  99
 100   const file = await VideoFileModel.load(videoFileId)
 101
 102   if (!file) {
 103     logger.debug('Do not process torrent for file %d: does not exist anymore.', videoFileId)
 104   }
 105
 106   return file
 107 }