2023-07-31 07:34:36 -05:00
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import bencode from 'bencode'
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2021-08-27 07:32:44 -05:00
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import createTorrent from 'create-torrent'
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2023-07-31 07:34:36 -05:00
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import { createWriteStream } from 'fs'
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import { ensureDir, pathExists, remove } from 'fs-extra/esm'
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import { readFile, writeFile } from 'fs/promises'
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2023-05-22 10:04:39 -05:00
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import { encode as magnetUriEncode } from 'magnet-uri'
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2021-08-27 07:32:44 -05:00
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import parseTorrent from 'parse-torrent'
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2021-02-16 09:25:53 -06:00
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import { dirname, join } from 'path'
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2021-08-27 07:32:44 -05:00
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import { pipeline } from 'stream'
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2023-07-31 07:34:36 -05:00
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import { promisify2 } from '@peertube/peertube-core-utils'
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import { isArray } from '@server/helpers/custom-validators/misc.js'
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import { WEBSERVER } from '@server/initializers/constants.js'
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import { generateTorrentFileName } from '@server/lib/paths.js'
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import { VideoPathManager } from '@server/lib/video-path-manager.js'
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import { MVideoFile, MVideoFileRedundanciesOpt } from '@server/types/models/video/video-file.js'
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import { MStreamingPlaylistVideo } from '@server/types/models/video/video-streaming-playlist.js'
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import { MVideo } from '@server/types/models/video/video.js'
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import { sha1 } from '@peertube/peertube-node-utils'
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import { CONFIG } from '../initializers/config.js'
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import { logger } from './logger.js'
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import { generateVideoImportTmpPath } from './utils.js'
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import { extractVideo } from './video.js'
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import type { Instance, TorrentFile } from 'webtorrent'
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2019-11-15 08:06:03 -06:00
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const createTorrentPromise = promisify2<string, any, any>(createTorrent)
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2018-08-06 10:13:39 -05:00
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2021-09-06 02:29:25 -05:00
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async function downloadWebTorrentVideo (target: { uri: string, torrentName?: string }, timeout: number) {
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const id = target.uri || target.torrentName
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2018-09-11 09:27:07 -05:00
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let timer
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2018-08-06 10:13:39 -05:00
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2018-12-04 09:02:49 -06:00
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const path = generateVideoImportTmpPath(id)
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2018-08-07 02:54:36 -05:00
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logger.info('Importing torrent video %s', id)
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2018-08-06 10:13:39 -05:00
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2018-12-04 09:02:49 -06:00
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const directoryPath = join(CONFIG.STORAGE.TMP_DIR, 'webtorrent')
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2018-09-26 01:50:21 -05:00
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await ensureDir(directoryPath)
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2023-07-31 07:34:36 -05:00
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// eslint-disable-next-line new-cap
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2023-12-15 03:18:20 -06:00
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const webtorrent = new (await import('webtorrent')).default({
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natUpnp: false,
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natPmp: false
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} as any)
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2023-07-31 07:34:36 -05:00
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2018-08-06 10:13:39 -05:00
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return new Promise<string>((res, rej) => {
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2021-08-27 07:32:44 -05:00
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let file: TorrentFile
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2018-08-06 10:13:39 -05:00
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2021-09-06 02:29:25 -05:00
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const torrentId = target.uri || join(CONFIG.STORAGE.TORRENTS_DIR, target.torrentName)
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2018-08-07 10:18:35 -05:00
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2018-09-26 01:50:21 -05:00
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const options = { path: directoryPath }
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2018-08-07 10:18:35 -05:00
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const torrent = webtorrent.add(torrentId, options, torrent => {
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2018-09-11 09:27:07 -05:00
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if (torrent.files.length !== 1) {
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if (timer) clearTimeout(timer)
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2018-08-06 10:13:39 -05:00
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2020-01-31 09:56:52 -06:00
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for (const file of torrent.files) {
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2018-10-01 03:52:58 -05:00
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deleteDownloadedFile({ directoryPath, filepath: file.path })
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}
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return safeWebtorrentDestroy(webtorrent, torrentId, undefined, target.torrentName)
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2018-09-17 10:50:51 -05:00
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.then(() => rej(new Error('Cannot import torrent ' + torrentId + ': there are multiple files in it')))
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2018-09-11 09:27:07 -05:00
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}
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2021-08-26 08:28:51 -05:00
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logger.debug('Got torrent from webtorrent %s.', id, { infoHash: torrent.infoHash })
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2021-08-26 08:19:11 -05:00
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2020-01-31 09:56:52 -06:00
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file = torrent.files[0]
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2018-09-26 01:50:21 -05:00
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// FIXME: avoid creating another stream when https://github.com/webtorrent/webtorrent/issues/1517 is fixed
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const writeStream = createWriteStream(path)
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writeStream.on('finish', () => {
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if (timer) clearTimeout(timer)
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2020-01-31 09:56:52 -06:00
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safeWebtorrentDestroy(webtorrent, torrentId, { directoryPath, filepath: file.path }, target.torrentName)
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2018-09-26 01:50:21 -05:00
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.then(() => res(path))
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2020-01-31 09:56:52 -06:00
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.catch(err => logger.error('Cannot destroy webtorrent.', { err }))
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2018-09-25 12:42:05 -05:00
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})
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2018-09-26 01:50:21 -05:00
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2021-08-26 08:19:11 -05:00
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pipeline(
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file.createReadStream(),
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writeStream,
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2021-08-26 08:51:37 -05:00
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err => {
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if (err) rej(err)
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}
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2021-08-26 08:19:11 -05:00
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)
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2018-08-07 08:17:17 -05:00
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})
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2018-08-06 10:13:39 -05:00
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torrent.on('error', err => rej(err))
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2018-09-11 09:27:07 -05:00
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2020-01-31 09:56:52 -06:00
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timer = setTimeout(() => {
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const err = new Error('Webtorrent download timeout.')
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safeWebtorrentDestroy(webtorrent, torrentId, file ? { directoryPath, filepath: file.path } : undefined, target.torrentName)
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.then(() => rej(err))
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.catch(destroyErr => {
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logger.error('Cannot destroy webtorrent.', { err: destroyErr })
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rej(err)
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})
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2018-10-01 05:00:05 -05:00
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}, timeout)
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2018-08-06 10:13:39 -05:00
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})
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}
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2021-08-18 02:14:51 -05:00
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function createTorrentAndSetInfoHash (videoOrPlaylist: MVideo | MStreamingPlaylistVideo, videoFile: MVideoFile) {
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2022-02-11 03:51:33 -06:00
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return VideoPathManager.Instance.makeAvailableVideoFile(videoFile.withVideoOrPlaylist(videoOrPlaylist), videoPath => {
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return createTorrentAndSetInfoHashFromPath(videoOrPlaylist, videoFile, videoPath)
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})
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}
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async function createTorrentAndSetInfoHashFromPath (
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videoOrPlaylist: MVideo | MStreamingPlaylistVideo,
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videoFile: MVideoFile,
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filePath: string
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) {
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2021-02-18 04:28:00 -06:00
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const video = extractVideo(videoOrPlaylist)
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2019-11-15 08:06:03 -06:00
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const options = {
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// Keep the extname, it's used by the client to stream the file inside a web browser
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2021-12-08 04:07:19 -06:00
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name: buildInfoName(video, videoFile),
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2019-11-15 08:06:03 -06:00
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createdBy: 'PeerTube',
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2021-08-18 02:14:51 -05:00
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announceList: buildAnnounceList(),
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urlList: buildUrlList(video, videoFile)
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2019-11-15 08:06:03 -06:00
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}
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2022-02-11 03:51:33 -06:00
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const torrentContent = await createTorrentPromise(filePath, options)
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2019-11-15 08:06:03 -06:00
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2022-02-11 03:51:33 -06:00
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const torrentFilename = generateTorrentFileName(videoOrPlaylist, videoFile.resolution)
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const torrentPath = join(CONFIG.STORAGE.TORRENTS_DIR, torrentFilename)
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logger.info('Creating torrent %s.', torrentPath)
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2019-11-15 08:06:03 -06:00
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2022-02-11 03:51:33 -06:00
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await writeFile(torrentPath, torrentContent)
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2019-11-15 08:06:03 -06:00
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2022-02-11 03:51:33 -06:00
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// Remove old torrent file if it existed
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if (videoFile.hasTorrent()) {
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await remove(join(CONFIG.STORAGE.TORRENTS_DIR, videoFile.torrentFilename))
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}
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2021-07-23 04:20:00 -05:00
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2023-10-11 02:20:23 -05:00
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// FIXME: typings: parseTorrent now returns an async result
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const parsedTorrent = await (parseTorrent(torrentContent) as unknown as Promise<parseTorrent.Instance>)
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2022-02-11 03:51:33 -06:00
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videoFile.infoHash = parsedTorrent.infoHash
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videoFile.torrentFilename = torrentFilename
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2019-11-15 08:06:03 -06:00
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}
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2021-12-08 04:07:19 -06:00
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async function updateTorrentMetadata (videoOrPlaylist: MVideo | MStreamingPlaylistVideo, videoFile: MVideoFile) {
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2021-08-18 02:14:51 -05:00
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const video = extractVideo(videoOrPlaylist)
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const oldTorrentPath = join(CONFIG.STORAGE.TORRENTS_DIR, videoFile.torrentFilename)
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2022-10-26 03:55:12 -05:00
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if (!await pathExists(oldTorrentPath)) {
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logger.info('Do not update torrent metadata %s of video %s because the file does not exist anymore.', video.uuid, oldTorrentPath)
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return
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}
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2021-08-18 02:14:51 -05:00
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const torrentContent = await readFile(oldTorrentPath)
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2023-07-31 07:34:36 -05:00
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const decoded = bencode.decode(torrentContent)
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2021-08-18 02:14:51 -05:00
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decoded['announce-list'] = buildAnnounceList()
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decoded.announce = decoded['announce-list'][0][0]
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decoded['url-list'] = buildUrlList(video, videoFile)
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2021-12-08 04:07:19 -06:00
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decoded.info.name = buildInfoName(video, videoFile)
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decoded['creation date'] = Math.ceil(Date.now() / 1000)
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2021-08-18 02:14:51 -05:00
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const newTorrentFilename = generateTorrentFileName(videoOrPlaylist, videoFile.resolution)
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const newTorrentPath = join(CONFIG.STORAGE.TORRENTS_DIR, newTorrentFilename)
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2021-12-08 04:07:19 -06:00
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logger.info('Updating torrent metadata %s -> %s.', oldTorrentPath, newTorrentPath)
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2021-08-18 02:14:51 -05:00
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2023-07-31 07:34:36 -05:00
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await writeFile(newTorrentPath, bencode.encode(decoded))
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2022-10-26 03:55:12 -05:00
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await remove(oldTorrentPath)
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2021-08-18 02:14:51 -05:00
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videoFile.torrentFilename = newTorrentFilename
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2023-07-31 07:34:36 -05:00
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videoFile.infoHash = sha1(bencode.encode(decoded.info))
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2021-08-18 02:14:51 -05:00
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}
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2019-11-15 08:06:03 -06:00
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function generateMagnetUri (
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2021-02-18 04:28:00 -06:00
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video: MVideo,
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2019-11-15 08:06:03 -06:00
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videoFile: MVideoFileRedundanciesOpt,
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2021-02-18 03:15:11 -06:00
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trackerUrls: string[]
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2019-11-15 08:06:03 -06:00
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) {
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2021-02-16 09:25:53 -06:00
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const xs = videoFile.getTorrentUrl()
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2021-02-18 03:15:11 -06:00
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const announce = trackerUrls
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2022-10-12 09:09:02 -05:00
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2022-10-19 03:43:53 -05:00
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let urlList = video.hasPrivateStaticPath()
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2022-10-12 09:09:02 -05:00
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? []
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: [ videoFile.getFileUrl(video) ]
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2019-11-15 08:06:03 -06:00
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const redundancies = videoFile.RedundancyVideos
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if (isArray(redundancies)) urlList = urlList.concat(redundancies.map(r => r.fileUrl))
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const magnetHash = {
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xs,
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announce,
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urlList,
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infoHash: videoFile.infoHash,
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name: video.name
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}
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2023-05-22 10:04:39 -05:00
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return magnetUriEncode(magnetHash)
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2019-11-15 08:06:03 -06:00
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}
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2019-07-15 02:22:57 -05:00
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2018-08-06 10:13:39 -05:00
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// ---------------------------------------------------------------------------
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export {
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2019-11-21 09:30:47 -06:00
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createTorrentPromise,
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2021-12-08 04:07:19 -06:00
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updateTorrentMetadata,
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2022-02-11 03:51:33 -06:00
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2019-11-15 08:06:03 -06:00
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createTorrentAndSetInfoHash,
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2022-02-11 03:51:33 -06:00
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createTorrentAndSetInfoHashFromPath,
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2019-11-15 08:06:03 -06:00
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generateMagnetUri,
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2018-08-06 10:13:39 -05:00
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downloadWebTorrentVideo
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}
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2018-09-11 09:27:07 -05:00
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// ---------------------------------------------------------------------------
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2018-09-28 02:08:12 -05:00
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function safeWebtorrentDestroy (
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2021-08-27 07:32:44 -05:00
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webtorrent: Instance,
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2018-09-28 02:08:12 -05:00
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torrentId: string,
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downloadedFile?: { directoryPath: string, filepath: string },
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torrentName?: string
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) {
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2021-02-03 02:33:05 -06:00
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return new Promise<void>(res => {
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2018-09-11 09:27:07 -05:00
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webtorrent.destroy(err => {
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// Delete torrent file
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if (torrentName) {
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2018-09-28 02:08:12 -05:00
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logger.debug('Removing %s torrent after webtorrent download.', torrentId)
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2018-09-11 09:27:07 -05:00
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remove(torrentId)
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.catch(err => logger.error('Cannot remove torrent %s in webtorrent download.', torrentId, { err }))
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}
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// Delete downloaded file
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2018-10-01 03:52:58 -05:00
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if (downloadedFile) deleteDownloadedFile(downloadedFile)
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2018-09-11 09:27:07 -05:00
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2018-10-01 03:52:58 -05:00
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if (err) logger.warn('Cannot destroy webtorrent in timeout.', { err })
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2018-09-11 09:27:07 -05:00
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return res()
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})
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})
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}
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2018-10-01 03:52:58 -05:00
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function deleteDownloadedFile (downloadedFile: { directoryPath: string, filepath: string }) {
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// We want to delete the base directory
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let pathToDelete = dirname(downloadedFile.filepath)
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if (pathToDelete === '.') pathToDelete = downloadedFile.filepath
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const toRemovePath = join(downloadedFile.directoryPath, pathToDelete)
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logger.debug('Removing %s after webtorrent download.', toRemovePath)
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remove(toRemovePath)
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.catch(err => logger.error('Cannot remove torrent file %s in webtorrent download.', toRemovePath, { err }))
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}
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2021-08-18 02:14:51 -05:00
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function buildAnnounceList () {
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return [
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[ WEBSERVER.WS + '://' + WEBSERVER.HOSTNAME + ':' + WEBSERVER.PORT + '/tracker/socket' ],
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[ WEBSERVER.URL + '/tracker/announce' ]
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]
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}
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function buildUrlList (video: MVideo, videoFile: MVideoFile) {
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2022-10-19 03:43:53 -05:00
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if (video.hasPrivateStaticPath()) return []
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2022-10-12 09:09:02 -05:00
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2021-08-18 02:14:51 -05:00
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return [ videoFile.getFileUrl(video) ]
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}
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2021-12-08 04:07:19 -06:00
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function buildInfoName (video: MVideo, videoFile: MVideoFile) {
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2023-09-01 02:55:08 -05:00
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const videoName = video.name.replace(/[/\\?%*:|"<>]/g, '-')
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return `${videoName} ${videoFile.resolution}p${videoFile.extname}`
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2021-12-08 04:07:19 -06:00
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}
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