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41fb13c3 C |
1 | import { decode, encode } from 'bencode' |
2 | import createTorrent from 'create-torrent' | |
1f6125be | 3 | import { createWriteStream, ensureDir, readFile, remove, writeFile } from 'fs-extra' |
41fb13c3 C |
4 | import magnetUtil from 'magnet-uri' |
5 | import parseTorrent from 'parse-torrent' | |
90a8bd30 | 6 | import { dirname, join } from 'path' |
41fb13c3 C |
7 | import { pipeline } from 'stream' |
8 | import WebTorrent, { Instance, TorrentFile } from 'webtorrent' | |
d7a25329 | 9 | import { isArray } from '@server/helpers/custom-validators/misc' |
90a8bd30 | 10 | import { WEBSERVER } from '@server/initializers/constants' |
0305db28 JB |
11 | import { generateTorrentFileName } from '@server/lib/paths' |
12 | import { VideoPathManager } from '@server/lib/video-path-manager' | |
8efc27bf | 13 | import { MVideo } from '@server/types/models/video/video' |
90a8bd30 C |
14 | import { MVideoFile, MVideoFileRedundanciesOpt } from '@server/types/models/video/video-file' |
15 | import { MStreamingPlaylistVideo } from '@server/types/models/video/video-streaming-playlist' | |
16 | import { CONFIG } from '../initializers/config' | |
17 | import { promisify2 } from './core-utils' | |
18 | import { logger } from './logger' | |
19 | import { generateVideoImportTmpPath } from './utils' | |
8efc27bf | 20 | import { extractVideo } from './video' |
d7a25329 C |
21 | |
22 | const createTorrentPromise = promisify2<string, any, any>(createTorrent) | |
ce33919c | 23 | |
02b286f8 C |
24 | async function downloadWebTorrentVideo (target: { uri: string, torrentName?: string }, timeout: number) { |
25 | const id = target.uri || target.torrentName | |
c48e82b5 | 26 | let timer |
ce33919c | 27 | |
6040f87d | 28 | const path = generateVideoImportTmpPath(id) |
990b6a0b | 29 | logger.info('Importing torrent video %s', id) |
ce33919c | 30 | |
6040f87d | 31 | const directoryPath = join(CONFIG.STORAGE.TMP_DIR, 'webtorrent') |
a71de50b C |
32 | await ensureDir(directoryPath) |
33 | ||
ce33919c C |
34 | return new Promise<string>((res, rej) => { |
35 | const webtorrent = new WebTorrent() | |
41fb13c3 | 36 | let file: TorrentFile |
ce33919c | 37 | |
02b286f8 | 38 | const torrentId = target.uri || join(CONFIG.STORAGE.TORRENTS_DIR, target.torrentName) |
541006e3 | 39 | |
a71de50b | 40 | const options = { path: directoryPath } |
541006e3 | 41 | const torrent = webtorrent.add(torrentId, options, torrent => { |
c48e82b5 C |
42 | if (torrent.files.length !== 1) { |
43 | if (timer) clearTimeout(timer) | |
ce33919c | 44 | |
a1587156 | 45 | for (const file of torrent.files) { |
e37c85e9 C |
46 | deleteDownloadedFile({ directoryPath, filepath: file.path }) |
47 | } | |
48 | ||
49 | return safeWebtorrentDestroy(webtorrent, torrentId, undefined, target.torrentName) | |
dae4a1c0 | 50 | .then(() => rej(new Error('Cannot import torrent ' + torrentId + ': there are multiple files in it'))) |
c48e82b5 C |
51 | } |
52 | ||
09509487 | 53 | logger.debug('Got torrent from webtorrent %s.', id, { infoHash: torrent.infoHash }) |
0bae6663 | 54 | |
a1587156 | 55 | file = torrent.files[0] |
a71de50b C |
56 | |
57 | // FIXME: avoid creating another stream when https://github.com/webtorrent/webtorrent/issues/1517 is fixed | |
58 | const writeStream = createWriteStream(path) | |
59 | writeStream.on('finish', () => { | |
60 | if (timer) clearTimeout(timer) | |
61 | ||
a1587156 | 62 | safeWebtorrentDestroy(webtorrent, torrentId, { directoryPath, filepath: file.path }, target.torrentName) |
a71de50b | 63 | .then(() => res(path)) |
a1587156 | 64 | .catch(err => logger.error('Cannot destroy webtorrent.', { err })) |
69fa54a0 | 65 | }) |
a71de50b | 66 | |
0bae6663 C |
67 | pipeline( |
68 | file.createReadStream(), | |
69 | writeStream, | |
e111a5a3 C |
70 | err => { |
71 | if (err) rej(err) | |
72 | } | |
0bae6663 | 73 | ) |
3e17515e | 74 | }) |
ce33919c C |
75 | |
76 | torrent.on('error', err => rej(err)) | |
c48e82b5 | 77 | |
a1587156 C |
78 | timer = setTimeout(() => { |
79 | const err = new Error('Webtorrent download timeout.') | |
80 | ||
81 | safeWebtorrentDestroy(webtorrent, torrentId, file ? { directoryPath, filepath: file.path } : undefined, target.torrentName) | |
82 | .then(() => rej(err)) | |
83 | .catch(destroyErr => { | |
84 | logger.error('Cannot destroy webtorrent.', { err: destroyErr }) | |
85 | rej(err) | |
86 | }) | |
87 | ||
cf9166cf | 88 | }, timeout) |
ce33919c C |
89 | }) |
90 | } | |
91 | ||
1f6125be | 92 | function createTorrentAndSetInfoHash (videoOrPlaylist: MVideo | MStreamingPlaylistVideo, videoFile: MVideoFile) { |
8efc27bf C |
93 | const video = extractVideo(videoOrPlaylist) |
94 | ||
d7a25329 C |
95 | const options = { |
96 | // Keep the extname, it's used by the client to stream the file inside a web browser | |
97 | name: `${video.name} ${videoFile.resolution}p${videoFile.extname}`, | |
98 | createdBy: 'PeerTube', | |
1f6125be C |
99 | announceList: buildAnnounceList(), |
100 | urlList: buildUrlList(video, videoFile) | |
d7a25329 C |
101 | } |
102 | ||
0305db28 | 103 | return VideoPathManager.Instance.makeAvailableVideoFile(videoOrPlaylist, videoFile, async videoPath => { |
1f6125be | 104 | const torrentContent = await createTorrentPromise(videoPath, options) |
d7a25329 | 105 | |
0305db28 JB |
106 | const torrentFilename = generateTorrentFileName(videoOrPlaylist, videoFile.resolution) |
107 | const torrentPath = join(CONFIG.STORAGE.TORRENTS_DIR, torrentFilename) | |
108 | logger.info('Creating torrent %s.', torrentPath) | |
d7a25329 | 109 | |
1f6125be | 110 | await writeFile(torrentPath, torrentContent) |
d7a25329 | 111 | |
0305db28 JB |
112 | // Remove old torrent file if it existed |
113 | if (videoFile.hasTorrent()) { | |
114 | await remove(join(CONFIG.STORAGE.TORRENTS_DIR, videoFile.torrentFilename)) | |
115 | } | |
764b1a14 | 116 | |
1f6125be | 117 | const parsedTorrent = parseTorrent(torrentContent) |
0305db28 JB |
118 | videoFile.infoHash = parsedTorrent.infoHash |
119 | videoFile.torrentFilename = torrentFilename | |
120 | }) | |
d7a25329 C |
121 | } |
122 | ||
1f6125be C |
123 | async function updateTorrentUrls (videoOrPlaylist: MVideo | MStreamingPlaylistVideo, videoFile: MVideoFile) { |
124 | const video = extractVideo(videoOrPlaylist) | |
125 | ||
126 | const oldTorrentPath = join(CONFIG.STORAGE.TORRENTS_DIR, videoFile.torrentFilename) | |
127 | ||
128 | const torrentContent = await readFile(oldTorrentPath) | |
41fb13c3 | 129 | const decoded = decode(torrentContent) |
1f6125be C |
130 | |
131 | decoded['announce-list'] = buildAnnounceList() | |
132 | decoded.announce = decoded['announce-list'][0][0] | |
133 | ||
134 | decoded['url-list'] = buildUrlList(video, videoFile) | |
135 | ||
136 | const newTorrentFilename = generateTorrentFileName(videoOrPlaylist, videoFile.resolution) | |
137 | const newTorrentPath = join(CONFIG.STORAGE.TORRENTS_DIR, newTorrentFilename) | |
138 | ||
f645af43 | 139 | logger.info('Updating torrent URLs %s -> %s.', oldTorrentPath, newTorrentPath) |
1f6125be | 140 | |
41fb13c3 | 141 | await writeFile(newTorrentPath, encode(decoded)) |
f645af43 | 142 | await remove(join(CONFIG.STORAGE.TORRENTS_DIR, videoFile.torrentFilename)) |
1f6125be C |
143 | |
144 | videoFile.torrentFilename = newTorrentFilename | |
145 | } | |
146 | ||
d7a25329 | 147 | function generateMagnetUri ( |
8efc27bf | 148 | video: MVideo, |
d7a25329 | 149 | videoFile: MVideoFileRedundanciesOpt, |
d9a2a031 | 150 | trackerUrls: string[] |
d7a25329 | 151 | ) { |
90a8bd30 | 152 | const xs = videoFile.getTorrentUrl() |
d9a2a031 | 153 | const announce = trackerUrls |
90a8bd30 | 154 | let urlList = [ videoFile.getFileUrl(video) ] |
d7a25329 C |
155 | |
156 | const redundancies = videoFile.RedundancyVideos | |
157 | if (isArray(redundancies)) urlList = urlList.concat(redundancies.map(r => r.fileUrl)) | |
158 | ||
159 | const magnetHash = { | |
160 | xs, | |
161 | announce, | |
162 | urlList, | |
163 | infoHash: videoFile.infoHash, | |
164 | name: video.name | |
165 | } | |
166 | ||
167 | return magnetUtil.encode(magnetHash) | |
168 | } | |
30ff39e7 | 169 | |
ce33919c C |
170 | // --------------------------------------------------------------------------- |
171 | ||
172 | export { | |
d441f2ed | 173 | createTorrentPromise, |
1f6125be | 174 | updateTorrentUrls, |
d7a25329 C |
175 | createTorrentAndSetInfoHash, |
176 | generateMagnetUri, | |
ce33919c C |
177 | downloadWebTorrentVideo |
178 | } | |
c48e82b5 C |
179 | |
180 | // --------------------------------------------------------------------------- | |
181 | ||
d0b52b52 | 182 | function safeWebtorrentDestroy ( |
41fb13c3 | 183 | webtorrent: Instance, |
d0b52b52 C |
184 | torrentId: string, |
185 | downloadedFile?: { directoryPath: string, filepath: string }, | |
186 | torrentName?: string | |
187 | ) { | |
ba5a8d89 | 188 | return new Promise<void>(res => { |
c48e82b5 C |
189 | webtorrent.destroy(err => { |
190 | // Delete torrent file | |
191 | if (torrentName) { | |
d0b52b52 | 192 | logger.debug('Removing %s torrent after webtorrent download.', torrentId) |
c48e82b5 C |
193 | remove(torrentId) |
194 | .catch(err => logger.error('Cannot remove torrent %s in webtorrent download.', torrentId, { err })) | |
195 | } | |
196 | ||
197 | // Delete downloaded file | |
e37c85e9 | 198 | if (downloadedFile) deleteDownloadedFile(downloadedFile) |
c48e82b5 | 199 | |
e37c85e9 | 200 | if (err) logger.warn('Cannot destroy webtorrent in timeout.', { err }) |
c48e82b5 C |
201 | |
202 | return res() | |
203 | }) | |
204 | }) | |
205 | } | |
e37c85e9 C |
206 | |
207 | function deleteDownloadedFile (downloadedFile: { directoryPath: string, filepath: string }) { | |
208 | // We want to delete the base directory | |
209 | let pathToDelete = dirname(downloadedFile.filepath) | |
210 | if (pathToDelete === '.') pathToDelete = downloadedFile.filepath | |
211 | ||
212 | const toRemovePath = join(downloadedFile.directoryPath, pathToDelete) | |
213 | ||
214 | logger.debug('Removing %s after webtorrent download.', toRemovePath) | |
215 | remove(toRemovePath) | |
216 | .catch(err => logger.error('Cannot remove torrent file %s in webtorrent download.', toRemovePath, { err })) | |
217 | } | |
1f6125be C |
218 | |
219 | function buildAnnounceList () { | |
220 | return [ | |
221 | [ WEBSERVER.WS + '://' + WEBSERVER.HOSTNAME + ':' + WEBSERVER.PORT + '/tracker/socket' ], | |
222 | [ WEBSERVER.URL + '/tracker/announce' ] | |
223 | ] | |
224 | } | |
225 | ||
226 | function buildUrlList (video: MVideo, videoFile: MVideoFile) { | |
227 | return [ videoFile.getFileUrl(video) ] | |
228 | } |