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1 | 'use strict' | |
2 | ||
3 | const createTorrent = require('create-torrent') | |
4 | const ffmpeg = require('fluent-ffmpeg') | |
5 | const fs = require('fs') | |
6 | const parallel = require('async/parallel') | |
7 | const parseTorrent = require('parse-torrent') | |
8 | const pathUtils = require('path') | |
9 | const magnet = require('magnet-uri') | |
10 | const mongoose = require('mongoose') | |
11 | ||
12 | const constants = require('../initializers/constants') | |
13 | const customVideosValidators = require('../helpers/custom-validators').videos | |
14 | const logger = require('../helpers/logger') | |
15 | const modelUtils = require('./utils') | |
16 | ||
17 | // --------------------------------------------------------------------------- | |
18 | ||
19 | // TODO: add indexes on searchable columns | |
20 | const VideoSchema = mongoose.Schema({ | |
21 | name: String, | |
22 | extname: { | |
23 | type: String, | |
24 | enum: [ '.mp4', '.webm', '.ogv' ] | |
25 | }, | |
26 | remoteId: mongoose.Schema.Types.ObjectId, | |
27 | description: String, | |
28 | magnetUri: String, | |
29 | podUrl: String, | |
30 | author: String, | |
31 | duration: Number, | |
32 | thumbnail: String, | |
33 | tags: [ String ], | |
34 | createdDate: { | |
35 | type: Date, | |
36 | default: Date.now | |
37 | } | |
38 | }) | |
39 | ||
40 | VideoSchema.path('name').validate(customVideosValidators.isVideoNameValid) | |
41 | VideoSchema.path('description').validate(customVideosValidators.isVideoDescriptionValid) | |
42 | VideoSchema.path('magnetUri').validate(customVideosValidators.isVideoMagnetUriValid) | |
43 | VideoSchema.path('podUrl').validate(customVideosValidators.isVideoPodUrlValid) | |
44 | VideoSchema.path('author').validate(customVideosValidators.isVideoAuthorValid) | |
45 | VideoSchema.path('duration').validate(customVideosValidators.isVideoDurationValid) | |
46 | // The tumbnail can be the path or the data in base 64 | |
47 | // The pre save hook will convert the base 64 data in a file on disk and replace the thumbnail key by the filename | |
48 | VideoSchema.path('thumbnail').validate(function (value) { | |
49 | return customVideosValidators.isVideoThumbnailValid(value) || customVideosValidators.isVideoThumbnail64Valid(value) | |
50 | }) | |
51 | VideoSchema.path('tags').validate(customVideosValidators.isVideoTagsValid) | |
52 | ||
53 | VideoSchema.methods = { | |
54 | getFilename, | |
55 | getJPEGName, | |
56 | getTorrentName, | |
57 | isOwned, | |
58 | toFormatedJSON, | |
59 | toRemoteJSON | |
60 | } | |
61 | ||
62 | VideoSchema.statics = { | |
63 | getDurationFromFile, | |
64 | listForApi, | |
65 | listByUrlAndRemoteId, | |
66 | listByUrl, | |
67 | listOwned, | |
68 | listOwnedByAuthor, | |
69 | listRemotes, | |
70 | load, | |
71 | search | |
72 | } | |
73 | ||
74 | VideoSchema.pre('remove', function (next) { | |
75 | const video = this | |
76 | const tasks = [] | |
77 | ||
78 | tasks.push( | |
79 | function (callback) { | |
80 | removeThumbnail(video, callback) | |
81 | } | |
82 | ) | |
83 | ||
84 | if (video.isOwned()) { | |
85 | tasks.push( | |
86 | function (callback) { | |
87 | removeFile(video, callback) | |
88 | }, | |
89 | function (callback) { | |
90 | removeTorrent(video, callback) | |
91 | }, | |
92 | function (callback) { | |
93 | removePreview(video, callback) | |
94 | } | |
95 | ) | |
96 | } | |
97 | ||
98 | parallel(tasks, next) | |
99 | }) | |
100 | ||
101 | VideoSchema.pre('save', function (next) { | |
102 | const video = this | |
103 | const tasks = [] | |
104 | ||
105 | if (video.isOwned()) { | |
106 | const videoPath = pathUtils.join(constants.CONFIG.STORAGE.VIDEOS_DIR, video.getFilename()) | |
107 | this.podUrl = constants.CONFIG.WEBSERVER.URL | |
108 | ||
109 | tasks.push( | |
110 | // TODO: refractoring | |
111 | function (callback) { | |
112 | const options = { | |
113 | announceList: [ | |
114 | [ constants.CONFIG.WEBSERVER.WS + '://' + constants.CONFIG.WEBSERVER.HOSTNAME + ':' + constants.CONFIG.WEBSERVER.PORT + '/tracker/socket' ] | |
115 | ], | |
116 | urlList: [ | |
117 | constants.CONFIG.WEBSERVER.URL + constants.STATIC_PATHS.WEBSEED + video.getFilename() | |
118 | ] | |
119 | } | |
120 | ||
121 | createTorrent(videoPath, options, function (err, torrent) { | |
122 | if (err) return callback(err) | |
123 | ||
124 | fs.writeFile(constants.CONFIG.STORAGE.TORRENTS_DIR + video.getTorrentName(), torrent, function (err) { | |
125 | if (err) return callback(err) | |
126 | ||
127 | const parsedTorrent = parseTorrent(torrent) | |
128 | parsedTorrent.xs = video.podUrl + constants.STATIC_PATHS.TORRENTS + video.getTorrentName() | |
129 | video.magnetUri = magnet.encode(parsedTorrent) | |
130 | ||
131 | callback(null) | |
132 | }) | |
133 | }) | |
134 | }, | |
135 | function (callback) { | |
136 | createThumbnail(video, videoPath, callback) | |
137 | }, | |
138 | function (callback) { | |
139 | createPreview(video, videoPath, callback) | |
140 | } | |
141 | ) | |
142 | ||
143 | parallel(tasks, next) | |
144 | } else { | |
145 | generateThumbnailFromBase64(video, video.thumbnail, next) | |
146 | } | |
147 | }) | |
148 | ||
149 | mongoose.model('Video', VideoSchema) | |
150 | ||
151 | // ------------------------------ METHODS ------------------------------ | |
152 | ||
153 | function getFilename () { | |
154 | return this._id + this.extname | |
155 | } | |
156 | ||
157 | function getJPEGName () { | |
158 | return this._id + '.jpg' | |
159 | } | |
160 | ||
161 | function getTorrentName () { | |
162 | return this._id + '.torrent' | |
163 | } | |
164 | ||
165 | function isOwned () { | |
166 | return this.remoteId === null | |
167 | } | |
168 | ||
169 | function toFormatedJSON () { | |
170 | const json = { | |
171 | id: this._id, | |
172 | name: this.name, | |
173 | description: this.description, | |
174 | podUrl: this.podUrl.replace(/^https?:\/\//, ''), | |
175 | isLocal: this.isOwned(), | |
176 | magnetUri: this.magnetUri, | |
177 | author: this.author, | |
178 | duration: this.duration, | |
179 | tags: this.tags, | |
180 | thumbnailPath: constants.STATIC_PATHS.THUMBNAILS + '/' + this.getJPEGName(), | |
181 | createdDate: this.createdDate | |
182 | } | |
183 | ||
184 | return json | |
185 | } | |
186 | ||
187 | function toRemoteJSON (callback) { | |
188 | const self = this | |
189 | ||
190 | // Convert thumbnail to base64 | |
191 | const thumbnailPath = pathUtils.join(constants.CONFIG.STORAGE.THUMBNAILS_DIR, this.getJPEGName()) | |
192 | fs.readFile(thumbnailPath, function (err, thumbnailData) { | |
193 | if (err) { | |
194 | logger.error('Cannot read the thumbnail of the video') | |
195 | return callback(err) | |
196 | } | |
197 | ||
198 | const remoteVideo = { | |
199 | name: self.name, | |
200 | description: self.description, | |
201 | magnetUri: self.magnetUri, | |
202 | remoteId: self._id, | |
203 | author: self.author, | |
204 | duration: self.duration, | |
205 | thumbnailBase64: new Buffer(thumbnailData).toString('base64'), | |
206 | tags: self.tags, | |
207 | createdDate: self.createdDate, | |
208 | podUrl: self.podUrl | |
209 | } | |
210 | ||
211 | return callback(null, remoteVideo) | |
212 | }) | |
213 | } | |
214 | ||
215 | // ------------------------------ STATICS ------------------------------ | |
216 | ||
217 | function getDurationFromFile (videoPath, callback) { | |
218 | ffmpeg.ffprobe(videoPath, function (err, metadata) { | |
219 | if (err) return callback(err) | |
220 | ||
221 | return callback(null, Math.floor(metadata.format.duration)) | |
222 | }) | |
223 | } | |
224 | ||
225 | function listForApi (start, count, sort, callback) { | |
226 | const query = {} | |
227 | return modelUtils.listForApiWithCount.call(this, query, start, count, sort, callback) | |
228 | } | |
229 | ||
230 | function listByUrlAndRemoteId (fromUrl, remoteId, callback) { | |
231 | this.find({ podUrl: fromUrl, remoteId: remoteId }, callback) | |
232 | } | |
233 | ||
234 | function listByUrl (fromUrl, callback) { | |
235 | this.find({ podUrl: fromUrl }, callback) | |
236 | } | |
237 | ||
238 | function listOwned (callback) { | |
239 | // If remoteId is null this is *our* video | |
240 | this.find({ remoteId: null }, callback) | |
241 | } | |
242 | ||
243 | function listOwnedByAuthor (author, callback) { | |
244 | this.find({ remoteId: null, author: author }, callback) | |
245 | } | |
246 | ||
247 | function listRemotes (callback) { | |
248 | this.find({ remoteId: { $ne: null } }, callback) | |
249 | } | |
250 | ||
251 | function load (id, callback) { | |
252 | this.findById(id, callback) | |
253 | } | |
254 | ||
255 | function search (value, field, start, count, sort, callback) { | |
256 | const query = {} | |
257 | // Make an exact search with the magnet | |
258 | if (field === 'magnetUri' || field === 'tags') { | |
259 | query[field] = value | |
260 | } else { | |
261 | query[field] = new RegExp(value, 'i') | |
262 | } | |
263 | ||
264 | modelUtils.listForApiWithCount.call(this, query, start, count, sort, callback) | |
265 | } | |
266 | ||
267 | // --------------------------------------------------------------------------- | |
268 | ||
269 | function removeThumbnail (video, callback) { | |
270 | fs.unlink(constants.CONFIG.STORAGE.THUMBNAILS_DIR + video.getJPEGName(), callback) | |
271 | } | |
272 | ||
273 | function removeFile (video, callback) { | |
274 | fs.unlink(constants.CONFIG.STORAGE.VIDEOS_DIR + video.getFilename(), callback) | |
275 | } | |
276 | ||
277 | function removeTorrent (video, callback) { | |
278 | fs.unlink(constants.CONFIG.STORAGE.TORRENTS_DIR + video.getTorrentName(), callback) | |
279 | } | |
280 | ||
281 | function removePreview (video, callback) { | |
282 | // Same name than video thumnail | |
283 | // TODO: refractoring | |
284 | fs.unlink(constants.CONFIG.STORAGE.PREVIEWS_DIR + video.getJPEGName(), callback) | |
285 | } | |
286 | ||
287 | function createPreview (video, videoPath, callback) { | |
288 | generateImage(video, videoPath, constants.CONFIG.STORAGE.PREVIEWS_DIR, callback) | |
289 | } | |
290 | ||
291 | function createThumbnail (video, videoPath, callback) { | |
292 | generateImage(video, videoPath, constants.CONFIG.STORAGE.THUMBNAILS_DIR, constants.THUMBNAILS_SIZE, callback) | |
293 | } | |
294 | ||
295 | function generateThumbnailFromBase64 (video, thumbnailData, callback) { | |
296 | // Creating the thumbnail for this remote video) | |
297 | ||
298 | const thumbnailName = video.getJPEGName() | |
299 | const thumbnailPath = constants.CONFIG.STORAGE.THUMBNAILS_DIR + thumbnailName | |
300 | fs.writeFile(thumbnailPath, thumbnailData, { encoding: 'base64' }, function (err) { | |
301 | if (err) return callback(err) | |
302 | ||
303 | return callback(null, thumbnailName) | |
304 | }) | |
305 | } | |
306 | ||
307 | function generateImage (video, videoPath, folder, size, callback) { | |
308 | const filename = video.getJPEGName() | |
309 | const options = { | |
310 | filename, | |
311 | count: 1, | |
312 | folder | |
313 | } | |
314 | ||
315 | if (!callback) { | |
316 | callback = size | |
317 | } else { | |
318 | options.size = size | |
319 | } | |
320 | ||
321 | ffmpeg(videoPath) | |
322 | .on('error', callback) | |
323 | .on('end', function () { | |
324 | callback(null, filename) | |
325 | }) | |
326 | .thumbnail(options) | |
327 | } |