mirror of https://github.com/Chocobozzz/PeerTube
104 lines
3.6 KiB
TypeScript
104 lines
3.6 KiB
TypeScript
import { logger } from './logger'
|
|
import { generateVideoImportTmpPath } from './utils'
|
|
import * as WebTorrent from 'webtorrent'
|
|
import { createWriteStream, ensureDir, remove } from 'fs-extra'
|
|
import { CONFIG } from '../initializers'
|
|
import { dirname, join } from 'path'
|
|
|
|
async function downloadWebTorrentVideo (target: { magnetUri: string, torrentName?: string }, timeout: number) {
|
|
const id = target.magnetUri || target.torrentName
|
|
let timer
|
|
|
|
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: directoryPath }
|
|
const torrent = webtorrent.add(torrentId, options, torrent => {
|
|
if (torrent.files.length !== 1) {
|
|
if (timer) clearTimeout(timer)
|
|
|
|
for (let file of torrent.files) {
|
|
deleteDownloadedFile({ directoryPath, filepath: file.path })
|
|
}
|
|
|
|
return safeWebtorrentDestroy(webtorrent, torrentId, undefined, target.torrentName)
|
|
.then(() => rej(new Error('Cannot import torrent ' + torrentId + ': there are multiple files in it')))
|
|
}
|
|
|
|
file = torrent.files[ 0 ]
|
|
|
|
// 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)
|
|
|
|
return safeWebtorrentDestroy(webtorrent, torrentId, { directoryPath, filepath: file.path }, target.torrentName)
|
|
.then(() => res(path))
|
|
})
|
|
|
|
file.createReadStream().pipe(writeStream)
|
|
})
|
|
|
|
torrent.on('error', err => rej(err))
|
|
|
|
timer = setTimeout(async () => {
|
|
return safeWebtorrentDestroy(webtorrent, torrentId, file ? { directoryPath, filepath: file.path } : undefined, target.torrentName)
|
|
.then(() => rej(new Error('Webtorrent download timeout.')))
|
|
}, timeout)
|
|
})
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
export {
|
|
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 }))
|
|
}
|