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import { logger } from './logger'
import { generateVideoTmpPath } from './utils'
import * as WebTorrent from 'webtorrent'
import { createWriteStream } from 'fs'
import { CONFIG } from '../initializers'
import { join } from 'path'
import { unlinkPromise } from './core-utils'
function downloadWebTorrentVideo (target: { magnetUri: string, torrentName: string }) {
const id = target.magnetUri || target.torrentName
const path = generateVideoTmpPath(id)
logger.info('Importing torrent video %s', id)
return new Promise<string>((res, rej) => {
const webtorrent = new WebTorrent()
const torrentId = target.magnetUri || join(CONFIG.STORAGE.TORRENTS_DIR, target.torrentName)
const options = { path: CONFIG.STORAGE.VIDEOS_DIR }
const torrent = webtorrent.add(torrentId, options, torrent => {
if (torrent.files.length !== 1) return rej(new Error('The number of files is not equal to 1 for ' + torrentId))
const file = torrent.files[ 0 ]
const writeStream = createWriteStream(path)
writeStream.on('finish', () => {
webtorrent.destroy(async err => {
if (err) return rej(err)
if (target.torrentName) {
unlinkPromise(torrentId)
.catch(err => logger.error('Cannot remove torrent %s in webtorrent download.', torrentId, { err }))
}
unlinkPromise(join(CONFIG.STORAGE.VIDEOS_DIR, file.name))
.catch(err => logger.error('Cannot remove torrent file %s in webtorrent download.', file.name, { err }))
res(path)
})
})
file.createReadStream().pipe(writeStream)
})
torrent.on('error', err => rej(err))
})
}
// ---------------------------------------------------------------------------
export {
downloadWebTorrentVideo
}
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