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90a8bd30 C |
1 | import * as cors from 'cors' |
2 | import * as express from 'express' | |
4bc45da3 | 3 | import { logger } from '@server/helpers/logger' |
90a8bd30 | 4 | import { VideosTorrentCache } from '@server/lib/files-cache/videos-torrent-cache' |
4bc45da3 | 5 | import { Hooks } from '@server/lib/plugins/hooks' |
90a8bd30 | 6 | import { getVideoFilePath } from '@server/lib/video-paths' |
4bc45da3 | 7 | import { MStreamingPlaylist, MVideo, MVideoFile, MVideoFullLight } from '@server/types/models' |
4c7e60bc | 8 | import { HttpStatusCode, VideoStreamingPlaylistType } from '@shared/models' |
90a8bd30 C |
9 | import { STATIC_DOWNLOAD_PATHS } from '../initializers/constants' |
10 | import { asyncMiddleware, videosDownloadValidator } from '../middlewares' | |
11 | ||
12 | const downloadRouter = express.Router() | |
13 | ||
14 | downloadRouter.use(cors()) | |
15 | ||
16 | downloadRouter.use( | |
17 | STATIC_DOWNLOAD_PATHS.TORRENTS + ':filename', | |
4bc45da3 | 18 | asyncMiddleware(downloadTorrent) |
90a8bd30 C |
19 | ) |
20 | ||
21 | downloadRouter.use( | |
22 | STATIC_DOWNLOAD_PATHS.VIDEOS + ':id-:resolution([0-9]+).:extension', | |
23 | asyncMiddleware(videosDownloadValidator), | |
4bc45da3 | 24 | asyncMiddleware(downloadVideoFile) |
90a8bd30 C |
25 | ) |
26 | ||
27 | downloadRouter.use( | |
28 | STATIC_DOWNLOAD_PATHS.HLS_VIDEOS + ':id-:resolution([0-9]+)-fragmented.:extension', | |
29 | asyncMiddleware(videosDownloadValidator), | |
4bc45da3 | 30 | asyncMiddleware(downloadHLSVideoFile) |
90a8bd30 C |
31 | ) |
32 | ||
33 | // --------------------------------------------------------------------------- | |
34 | ||
35 | export { | |
36 | downloadRouter | |
37 | } | |
38 | ||
39 | // --------------------------------------------------------------------------- | |
40 | ||
41 | async function downloadTorrent (req: express.Request, res: express.Response) { | |
42 | const result = await VideosTorrentCache.Instance.getFilePath(req.params.filename) | |
76148b27 RK |
43 | if (!result) { |
44 | return res.fail({ | |
45 | status: HttpStatusCode.NOT_FOUND_404, | |
46 | message: 'Torrent file not found' | |
47 | }) | |
48 | } | |
90a8bd30 | 49 | |
4bc45da3 C |
50 | const allowParameters = { torrentPath: result.path, downloadName: result.downloadName } |
51 | ||
52 | const allowedResult = await Hooks.wrapFun( | |
53 | isTorrentDownloadAllowed, | |
54 | allowParameters, | |
55 | 'filter:api.download.torrent.allowed.result' | |
56 | ) | |
57 | ||
58 | if (!checkAllowResult(res, allowParameters, allowedResult)) return | |
59 | ||
90a8bd30 C |
60 | return res.download(result.path, result.downloadName) |
61 | } | |
62 | ||
4bc45da3 | 63 | async function downloadVideoFile (req: express.Request, res: express.Response) { |
90a8bd30 C |
64 | const video = res.locals.videoAll |
65 | ||
66 | const videoFile = getVideoFile(req, video.VideoFiles) | |
76148b27 RK |
67 | if (!videoFile) { |
68 | return res.fail({ | |
69 | status: HttpStatusCode.NOT_FOUND_404, | |
70 | message: 'Video file not found' | |
71 | }) | |
72 | } | |
90a8bd30 | 73 | |
4bc45da3 C |
74 | const allowParameters = { video, videoFile } |
75 | ||
76 | const allowedResult = await Hooks.wrapFun( | |
77 | isVideoDownloadAllowed, | |
78 | allowParameters, | |
79 | 'filter:api.download.video.allowed.result' | |
80 | ) | |
81 | ||
82 | if (!checkAllowResult(res, allowParameters, allowedResult)) return | |
83 | ||
90a8bd30 C |
84 | return res.download(getVideoFilePath(video, videoFile), `${video.name}-${videoFile.resolution}p${videoFile.extname}`) |
85 | } | |
86 | ||
4bc45da3 | 87 | async function downloadHLSVideoFile (req: express.Request, res: express.Response) { |
90a8bd30 | 88 | const video = res.locals.videoAll |
4bc45da3 C |
89 | const streamingPlaylist = getHLSPlaylist(video) |
90 | if (!streamingPlaylist) return res.status(HttpStatusCode.NOT_FOUND_404).end | |
90a8bd30 | 91 | |
4bc45da3 | 92 | const videoFile = getVideoFile(req, streamingPlaylist.VideoFiles) |
76148b27 RK |
93 | if (!videoFile) { |
94 | return res.fail({ | |
95 | status: HttpStatusCode.NOT_FOUND_404, | |
96 | message: 'Video file not found' | |
97 | }) | |
98 | } | |
90a8bd30 | 99 | |
4bc45da3 C |
100 | const allowParameters = { video, streamingPlaylist, videoFile } |
101 | ||
102 | const allowedResult = await Hooks.wrapFun( | |
103 | isVideoDownloadAllowed, | |
104 | allowParameters, | |
105 | 'filter:api.download.video.allowed.result' | |
106 | ) | |
107 | ||
108 | if (!checkAllowResult(res, allowParameters, allowedResult)) return | |
109 | ||
110 | const filename = `${video.name}-${videoFile.resolution}p-${streamingPlaylist.getStringType()}${videoFile.extname}` | |
111 | return res.download(getVideoFilePath(streamingPlaylist, videoFile), filename) | |
90a8bd30 C |
112 | } |
113 | ||
114 | function getVideoFile (req: express.Request, files: MVideoFile[]) { | |
115 | const resolution = parseInt(req.params.resolution, 10) | |
116 | return files.find(f => f.resolution === resolution) | |
117 | } | |
118 | ||
119 | function getHLSPlaylist (video: MVideoFullLight) { | |
120 | const playlist = video.VideoStreamingPlaylists.find(p => p.type === VideoStreamingPlaylistType.HLS) | |
121 | if (!playlist) return undefined | |
122 | ||
123 | return Object.assign(playlist, { Video: video }) | |
124 | } | |
4bc45da3 C |
125 | |
126 | type AllowedResult = { | |
127 | allowed: boolean | |
128 | errorMessage?: string | |
129 | } | |
130 | ||
131 | function isTorrentDownloadAllowed (_object: { | |
132 | torrentPath: string | |
133 | }): AllowedResult { | |
134 | return { allowed: true } | |
135 | } | |
136 | ||
137 | function isVideoDownloadAllowed (_object: { | |
138 | video: MVideo | |
139 | videoFile: MVideoFile | |
140 | streamingPlaylist?: MStreamingPlaylist | |
141 | }): AllowedResult { | |
142 | return { allowed: true } | |
143 | } | |
144 | ||
145 | function checkAllowResult (res: express.Response, allowParameters: any, result?: AllowedResult) { | |
146 | if (!result || result.allowed !== true) { | |
147 | logger.info('Download is not allowed.', { result, allowParameters }) | |
4bc45da3 | 148 | |
76148b27 RK |
149 | res.fail({ |
150 | status: HttpStatusCode.FORBIDDEN_403, | |
151 | message: result?.errorMessage || 'Refused download' | |
152 | }) | |
4bc45da3 C |
153 | return false |
154 | } | |
155 | ||
156 | return true | |
157 | } |