+async function createTorrentAndSetInfoHashFromPath (
+ videoOrPlaylist: MVideo | MStreamingPlaylistVideo,
+ videoFile: MVideoFile,
+ filePath: string
+) {
+ const video = extractVideo(videoOrPlaylist)
+
+ const options = {
+ // Keep the extname, it's used by the client to stream the file inside a web browser
+ name: buildInfoName(video, videoFile),
+ createdBy: 'PeerTube',
+ announceList: buildAnnounceList(),
+ urlList: buildUrlList(video, videoFile)
+ }
+
+ const torrentContent = await createTorrentPromise(filePath, options)
+
+ const torrentFilename = generateTorrentFileName(videoOrPlaylist, videoFile.resolution)
+ const torrentPath = join(CONFIG.STORAGE.TORRENTS_DIR, torrentFilename)
+ logger.info('Creating torrent %s.', torrentPath)
+
+ await writeFile(torrentPath, torrentContent)
+
+ // Remove old torrent file if it existed
+ if (videoFile.hasTorrent()) {
+ await remove(join(CONFIG.STORAGE.TORRENTS_DIR, videoFile.torrentFilename))
+ }
+
+ const parsedTorrent = parseTorrent(torrentContent)
+ videoFile.infoHash = parsedTorrent.infoHash
+ videoFile.torrentFilename = torrentFilename
+}
+
+async function updateTorrentMetadata (videoOrPlaylist: MVideo | MStreamingPlaylistVideo, videoFile: MVideoFile) {
+ const video = extractVideo(videoOrPlaylist)
+
+ const oldTorrentPath = join(CONFIG.STORAGE.TORRENTS_DIR, videoFile.torrentFilename)
+
+ if (!await pathExists(oldTorrentPath)) {
+ logger.info('Do not update torrent metadata %s of video %s because the file does not exist anymore.', video.uuid, oldTorrentPath)
+ return
+ }
+
+ const torrentContent = await readFile(oldTorrentPath)
+ const decoded = decode(torrentContent)
+
+ decoded['announce-list'] = buildAnnounceList()
+ decoded.announce = decoded['announce-list'][0][0]
+
+ decoded['url-list'] = buildUrlList(video, videoFile)
+
+ decoded.info.name = buildInfoName(video, videoFile)
+ decoded['creation date'] = Math.ceil(Date.now() / 1000)
+
+ const newTorrentFilename = generateTorrentFileName(videoOrPlaylist, videoFile.resolution)
+ const newTorrentPath = join(CONFIG.STORAGE.TORRENTS_DIR, newTorrentFilename)
+
+ logger.info('Updating torrent metadata %s -> %s.', oldTorrentPath, newTorrentPath)
+
+ await writeFile(newTorrentPath, encode(decoded))
+ await remove(oldTorrentPath)
+
+ videoFile.torrentFilename = newTorrentFilename
+ videoFile.infoHash = sha1(encode(decoded.info))
+}
+
+function generateMagnetUri (
+ video: MVideo,
+ videoFile: MVideoFileRedundanciesOpt,
+ trackerUrls: string[]
+) {
+ const xs = videoFile.getTorrentUrl()
+ const announce = trackerUrls
+
+ let urlList = video.hasPrivateStaticPath()
+ ? []
+ : [ videoFile.getFileUrl(video) ]
+
+ 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)
+}
+