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Commit | Line | Data |
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ce33919c | 1 | import { logger } from './logger' |
a71de50b | 2 | import { generateVideoTmpPath } from './utils' |
ce33919c | 3 | import * as WebTorrent from 'webtorrent' |
a71de50b | 4 | import { createWriteStream, ensureDir, remove } from 'fs-extra' |
990b6a0b C |
5 | import { CONFIG } from '../initializers' |
6 | import { join } from 'path' | |
ce33919c | 7 | |
a71de50b | 8 | async function downloadWebTorrentVideo (target: { magnetUri: string, torrentName?: string }, timeout?: number) { |
990b6a0b | 9 | const id = target.magnetUri || target.torrentName |
c48e82b5 | 10 | let timer |
ce33919c | 11 | |
a71de50b | 12 | const path = generateVideoTmpPath(id) |
990b6a0b | 13 | logger.info('Importing torrent video %s', id) |
ce33919c | 14 | |
a71de50b C |
15 | const directoryPath = join(CONFIG.STORAGE.VIDEOS_DIR, 'import') |
16 | await ensureDir(directoryPath) | |
17 | ||
ce33919c C |
18 | return new Promise<string>((res, rej) => { |
19 | const webtorrent = new WebTorrent() | |
c48e82b5 | 20 | let file: WebTorrent.TorrentFile |
ce33919c | 21 | |
990b6a0b | 22 | const torrentId = target.magnetUri || join(CONFIG.STORAGE.TORRENTS_DIR, target.torrentName) |
541006e3 | 23 | |
a71de50b | 24 | const options = { path: directoryPath } |
541006e3 | 25 | const torrent = webtorrent.add(torrentId, options, torrent => { |
c48e82b5 C |
26 | if (torrent.files.length !== 1) { |
27 | if (timer) clearTimeout(timer) | |
ce33919c | 28 | |
a71de50b | 29 | return safeWebtorrentDestroy(webtorrent, torrentId, join(directoryPath, file.name), target.torrentName) |
dae4a1c0 | 30 | .then(() => rej(new Error('Cannot import torrent ' + torrentId + ': there are multiple files in it'))) |
c48e82b5 C |
31 | } |
32 | ||
a71de50b C |
33 | file = torrent.files[ 0 ] |
34 | ||
35 | // FIXME: avoid creating another stream when https://github.com/webtorrent/webtorrent/issues/1517 is fixed | |
36 | const writeStream = createWriteStream(path) | |
37 | writeStream.on('finish', () => { | |
38 | if (timer) clearTimeout(timer) | |
39 | ||
40 | return safeWebtorrentDestroy(webtorrent, torrentId, join(directoryPath, file.name), target.torrentName) | |
41 | .then(() => res(path)) | |
69fa54a0 | 42 | }) |
a71de50b C |
43 | |
44 | file.createReadStream().pipe(writeStream) | |
3e17515e | 45 | }) |
ce33919c C |
46 | |
47 | torrent.on('error', err => rej(err)) | |
c48e82b5 C |
48 | |
49 | if (timeout) { | |
50 | timer = setTimeout(async () => { | |
a71de50b | 51 | return safeWebtorrentDestroy(webtorrent, torrentId, file ? join(directoryPath, file.name) : undefined, target.torrentName) |
c48e82b5 C |
52 | .then(() => rej(new Error('Webtorrent download timeout.'))) |
53 | }, timeout) | |
54 | } | |
ce33919c C |
55 | }) |
56 | } | |
57 | ||
58 | // --------------------------------------------------------------------------- | |
59 | ||
60 | export { | |
61 | downloadWebTorrentVideo | |
62 | } | |
c48e82b5 C |
63 | |
64 | // --------------------------------------------------------------------------- | |
65 | ||
a71de50b | 66 | function safeWebtorrentDestroy (webtorrent: WebTorrent.Instance, torrentId: string, filepath?: string, torrentName?: string) { |
c48e82b5 C |
67 | return new Promise(res => { |
68 | webtorrent.destroy(err => { | |
69 | // Delete torrent file | |
70 | if (torrentName) { | |
71 | remove(torrentId) | |
72 | .catch(err => logger.error('Cannot remove torrent %s in webtorrent download.', torrentId, { err })) | |
73 | } | |
74 | ||
75 | // Delete downloaded file | |
a71de50b C |
76 | if (filepath) { |
77 | remove(filepath) | |
78 | .catch(err => logger.error('Cannot remove torrent file %s in webtorrent download.', filepath, { err })) | |
c48e82b5 C |
79 | } |
80 | ||
81 | if (err) { | |
82 | logger.warn('Cannot destroy webtorrent in timeout.', { err }) | |
83 | } | |
84 | ||
85 | return res() | |
86 | }) | |
87 | }) | |
88 | } |