server/helpers/webtorrent.ts

   1 import { logger } from './logger'
   2 import { generateVideoTmpPath } from './utils'
   3 import * as WebTorrent from 'webtorrent'
   4 import { createWriteStream } from 'fs'
   5 import { Instance as ParseTorrent } from 'parse-torrent'
   6 import { CONFIG } from '../initializers'
   7 import { join } from 'path'
   8
   9 function downloadWebTorrentVideo (target: { magnetUri: string, torrentName: string }) {
  10   const id = target.magnetUri || target.torrentName
  11
  12   const path = generateVideoTmpPath(id)
  13   logger.info('Importing torrent video %s', id)
  14
  15   return new Promise<string>((res, rej) => {
  16     const webtorrent = new WebTorrent()
  17
  18     const torrentId = target.magnetUri || join(CONFIG.STORAGE.TORRENTS_DIR, target.torrentName)
  19     const torrent = webtorrent.add(torrentId, torrent => {
  20       if (torrent.files.length !== 1) return rej(new Error('The number of files is not equal to 1 for ' + torrentId))
  21
  22       const file = torrent.files[ 0 ]
  23       file.createReadStream().pipe(createWriteStream(path))
  24     })
  25
  26     torrent.on('done', () => res(path))
  27
  28     torrent.on('error', err => rej(err))
  29   })
  30 }
  31
  32 // ---------------------------------------------------------------------------
  33
  34 export {
  35   downloadWebTorrentVideo
  36 }