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