import { logger } from './logger'
-import { generateVideoTmpPath } from './utils'
+import { generateVideoImportTmpPath } from './utils'
import * as WebTorrent from 'webtorrent'
-import { createWriteStream } from 'fs'
-import { CONFIG } from '../initializers'
-import { join } from 'path'
-import { unlinkPromise } from './core-utils'
+import { createWriteStream, ensureDir, remove, writeFile } from 'fs-extra'
+import { CONFIG } from '../initializers/config'
+import { dirname, join } from 'path'
+import * as createTorrent from 'create-torrent'
+import { promisify2 } from './core-utils'
+import { MVideo } from '@server/typings/models/video/video'
+import { MVideoFile, MVideoFileRedundanciesOpt } from '@server/typings/models/video/video-file'
+import { isStreamingPlaylist, MStreamingPlaylistVideo } from '@server/typings/models/video/video-streaming-playlist'
+import { WEBSERVER } from '@server/initializers/constants'
+import * as parseTorrent from 'parse-torrent'
+import * as magnetUtil from 'magnet-uri'
+import { isArray } from '@server/helpers/custom-validators/misc'
+import { extractVideo } from '@server/lib/videos'
+import { getTorrentFileName, getVideoFilePath } from '@server/lib/video-paths'
-function downloadWebTorrentVideo (target: { magnetUri: string, torrentName: string }) {
+const createTorrentPromise = promisify2<string, any, any>(createTorrent)
+
+async function downloadWebTorrentVideo (target: { magnetUri: string, torrentName?: string }, timeout: number) {
const id = target.magnetUri || target.torrentName
+ let timer
- const path = generateVideoTmpPath(id)
+ const path = generateVideoImportTmpPath(id)
logger.info('Importing torrent video %s', id)
+ const directoryPath = join(CONFIG.STORAGE.TMP_DIR, 'webtorrent')
+ await ensureDir(directoryPath)
+
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 options = { path: CONFIG.STORAGE.VIDEOS_DIR }
+ const options = { path: directoryPath }
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))
+ if (torrent.files.length !== 1) {
+ if (timer) clearTimeout(timer)
- const file = torrent.files[ 0 ]
+ for (const file of torrent.files) {
+ deleteDownloadedFile({ directoryPath, filepath: file.path })
+ }
- const writeStream = createWriteStream(path)
- writeStream.on('finish', () => {
- webtorrent.destroy(async err => {
- if (err) return rej(err)
+ return safeWebtorrentDestroy(webtorrent, torrentId, undefined, target.torrentName)
+ .then(() => rej(new Error('Cannot import torrent ' + torrentId + ': there are multiple files in it')))
+ }
- if (target.torrentName) {
- unlinkPromise(torrentId)
- .catch(err => logger.error('Cannot remove torrent %s in webtorrent download.', torrentId, { err }))
- }
+ file = torrent.files[0]
- unlinkPromise(join(CONFIG.STORAGE.VIDEOS_DIR, file.name))
- .catch(err => logger.error('Cannot remove torrent file %s in webtorrent download.', file.name, { err }))
+ // FIXME: avoid creating another stream when https://github.com/webtorrent/webtorrent/issues/1517 is fixed
+ const writeStream = createWriteStream(path)
+ writeStream.on('finish', () => {
+ if (timer) clearTimeout(timer)
- res(path)
- })
+ safeWebtorrentDestroy(webtorrent, torrentId, { directoryPath, filepath: file.path }, target.torrentName)
+ .then(() => res(path))
+ .catch(err => logger.error('Cannot destroy webtorrent.', { err }))
})
file.createReadStream().pipe(writeStream)
})
torrent.on('error', err => rej(err))
+
+ timer = setTimeout(() => {
+ const err = new Error('Webtorrent download timeout.')
+
+ safeWebtorrentDestroy(webtorrent, torrentId, file ? { directoryPath, filepath: file.path } : undefined, target.torrentName)
+ .then(() => rej(err))
+ .catch(destroyErr => {
+ logger.error('Cannot destroy webtorrent.', { err: destroyErr })
+ rej(err)
+ })
+
+ }, timeout)
})
}
+async function createTorrentAndSetInfoHash (videoOrPlaylist: MVideo | MStreamingPlaylistVideo, videoFile: MVideoFile) {
+ const video = extractVideo(videoOrPlaylist)
+ const { baseUrlHttp } = video.getBaseUrls()
+
+ const options = {
+ // Keep the extname, it's used by the client to stream the file inside a web browser
+ name: `${video.name} ${videoFile.resolution}p${videoFile.extname}`,
+ createdBy: 'PeerTube',
+ announceList: [
+ [ WEBSERVER.WS + '://' + WEBSERVER.HOSTNAME + ':' + WEBSERVER.PORT + '/tracker/socket' ],
+ [ WEBSERVER.URL + '/tracker/announce' ]
+ ],
+ urlList: [ videoOrPlaylist.getVideoFileUrl(videoFile, baseUrlHttp) ]
+ }
+
+ const torrent = await createTorrentPromise(getVideoFilePath(videoOrPlaylist, videoFile), options)
+
+ const filePath = join(CONFIG.STORAGE.TORRENTS_DIR, getTorrentFileName(videoOrPlaylist, videoFile))
+ logger.info('Creating torrent %s.', filePath)
+
+ await writeFile(filePath, torrent)
+
+ const parsedTorrent = parseTorrent(torrent)
+ videoFile.infoHash = parsedTorrent.infoHash
+}
+
+function generateMagnetUri (
+ videoOrPlaylist: MVideo | MStreamingPlaylistVideo,
+ videoFile: MVideoFileRedundanciesOpt,
+ baseUrlHttp: string,
+ baseUrlWs: string
+) {
+ const video = isStreamingPlaylist(videoOrPlaylist)
+ ? videoOrPlaylist.Video
+ : videoOrPlaylist
+
+ const xs = videoOrPlaylist.getTorrentUrl(videoFile, baseUrlHttp)
+ const announce = videoOrPlaylist.getTrackerUrls(baseUrlHttp, baseUrlWs)
+ let urlList = [ videoOrPlaylist.getVideoFileUrl(videoFile, baseUrlHttp) ]
+
+ const redundancies = videoFile.RedundancyVideos
+ if (isArray(redundancies)) urlList = urlList.concat(redundancies.map(r => r.fileUrl))
+
+ const magnetHash = {
+ xs,
+ announce,
+ urlList,
+ infoHash: videoFile.infoHash,
+ name: video.name
+ }
+
+ return magnetUtil.encode(magnetHash)
+}
+
// ---------------------------------------------------------------------------
export {
+ createTorrentPromise,
+ createTorrentAndSetInfoHash,
+ generateMagnetUri,
downloadWebTorrentVideo
}
+
+// ---------------------------------------------------------------------------
+
+function safeWebtorrentDestroy (
+ webtorrent: WebTorrent.Instance,
+ torrentId: string,
+ downloadedFile?: { directoryPath: string, filepath: string },
+ torrentName?: string
+) {
+ return new Promise(res => {
+ webtorrent.destroy(err => {
+ // Delete torrent file
+ if (torrentName) {
+ logger.debug('Removing %s torrent after webtorrent download.', torrentId)
+ remove(torrentId)
+ .catch(err => logger.error('Cannot remove torrent %s in webtorrent download.', torrentId, { err }))
+ }
+
+ // Delete downloaded file
+ if (downloadedFile) deleteDownloadedFile(downloadedFile)
+
+ if (err) logger.warn('Cannot destroy webtorrent in timeout.', { err })
+
+ return res()
+ })
+ })
+}
+
+function deleteDownloadedFile (downloadedFile: { directoryPath: string, filepath: string }) {
+ // We want to delete the base directory
+ let pathToDelete = dirname(downloadedFile.filepath)
+ if (pathToDelete === '.') pathToDelete = downloadedFile.filepath
+
+ const toRemovePath = join(downloadedFile.directoryPath, pathToDelete)
+
+ logger.debug('Removing %s after webtorrent download.', toRemovePath)
+ remove(toRemovePath)
+ .catch(err => logger.error('Cannot remove torrent file %s in webtorrent download.', toRemovePath, { err }))
+}