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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 magnetUtil = require('magnet-uri') | |
7 | const map = require('lodash/map') | |
8 | const parallel = require('async/parallel') | |
9 | const parseTorrent = require('parse-torrent') | |
10 | const pathUtils = require('path') | |
11 | const values = require('lodash/values') | |
12 | ||
13 | const constants = require('../initializers/constants') | |
14 | const logger = require('../helpers/logger') | |
15 | const modelUtils = require('./utils') | |
16 | const customVideosValidators = require('../helpers/custom-validators').videos | |
17 | ||
18 | // --------------------------------------------------------------------------- | |
19 | ||
20 | module.exports = function (sequelize, DataTypes) { | |
21 | // TODO: add indexes on searchable columns | |
22 | const Video = sequelize.define('Video', | |
23 | { | |
24 | id: { | |
25 | type: DataTypes.UUID, | |
26 | defaultValue: DataTypes.UUIDV4, | |
27 | primaryKey: true, | |
28 | validate: { | |
29 | isUUID: 4 | |
30 | } | |
31 | }, | |
32 | name: { | |
33 | type: DataTypes.STRING, | |
34 | allowNull: false, | |
35 | validate: { | |
36 | nameValid: function (value) { | |
37 | const res = customVideosValidators.isVideoNameValid(value) | |
38 | if (res === false) throw new Error('Video name is not valid.') | |
39 | } | |
40 | } | |
41 | }, | |
42 | extname: { | |
43 | type: DataTypes.ENUM(values(constants.CONSTRAINTS_FIELDS.VIDEOS.EXTNAME)), | |
44 | allowNull: false | |
45 | }, | |
46 | remoteId: { | |
47 | type: DataTypes.UUID, | |
48 | allowNull: true, | |
49 | validate: { | |
50 | isUUID: 4 | |
51 | } | |
52 | }, | |
53 | description: { | |
54 | type: DataTypes.STRING, | |
55 | allowNull: false, | |
56 | validate: { | |
57 | descriptionValid: function (value) { | |
58 | const res = customVideosValidators.isVideoDescriptionValid(value) | |
59 | if (res === false) throw new Error('Video description is not valid.') | |
60 | } | |
61 | } | |
62 | }, | |
63 | infoHash: { | |
64 | type: DataTypes.STRING, | |
65 | allowNull: false, | |
66 | validate: { | |
67 | infoHashValid: function (value) { | |
68 | const res = customVideosValidators.isVideoInfoHashValid(value) | |
69 | if (res === false) throw new Error('Video info hash is not valid.') | |
70 | } | |
71 | } | |
72 | }, | |
73 | duration: { | |
74 | type: DataTypes.INTEGER, | |
75 | allowNull: false, | |
76 | validate: { | |
77 | durationValid: function (value) { | |
78 | const res = customVideosValidators.isVideoDurationValid(value) | |
79 | if (res === false) throw new Error('Video duration is not valid.') | |
80 | } | |
81 | } | |
82 | } | |
83 | }, | |
84 | { | |
85 | indexes: [ | |
86 | { | |
87 | fields: [ 'authorId' ] | |
88 | }, | |
89 | { | |
90 | fields: [ 'remoteId' ] | |
91 | }, | |
92 | { | |
93 | fields: [ 'name' ] | |
94 | }, | |
95 | { | |
96 | fields: [ 'createdAt' ] | |
97 | }, | |
98 | { | |
99 | fields: [ 'duration' ] | |
100 | }, | |
101 | { | |
102 | fields: [ 'infoHash' ] | |
103 | } | |
104 | ], | |
105 | classMethods: { | |
106 | associate, | |
107 | ||
108 | generateThumbnailFromBase64, | |
109 | getDurationFromFile, | |
110 | list, | |
111 | listForApi, | |
112 | listByHostAndRemoteId, | |
113 | listOwnedAndPopulateAuthorAndTags, | |
114 | listOwnedByAuthor, | |
115 | load, | |
116 | loadAndPopulateAuthor, | |
117 | loadAndPopulateAuthorAndPodAndTags, | |
118 | searchAndPopulateAuthorAndPodAndTags | |
119 | }, | |
120 | instanceMethods: { | |
121 | generateMagnetUri, | |
122 | getVideoFilename, | |
123 | getThumbnailName, | |
124 | getPreviewName, | |
125 | getTorrentName, | |
126 | isOwned, | |
127 | toFormatedJSON, | |
128 | toRemoteJSON | |
129 | }, | |
130 | hooks: { | |
131 | beforeValidate, | |
132 | beforeCreate, | |
133 | afterDestroy | |
134 | } | |
135 | } | |
136 | ) | |
137 | ||
138 | return Video | |
139 | } | |
140 | ||
141 | function beforeValidate (video, options, next) { | |
142 | if (video.isOwned()) { | |
143 | // 40 hexa length | |
144 | video.infoHash = '0123456789abcdef0123456789abcdef01234567' | |
145 | } | |
146 | ||
147 | return next(null) | |
148 | } | |
149 | ||
150 | function beforeCreate (video, options, next) { | |
151 | const tasks = [] | |
152 | ||
153 | if (video.isOwned()) { | |
154 | const videoPath = pathUtils.join(constants.CONFIG.STORAGE.VIDEOS_DIR, video.getVideoFilename()) | |
155 | ||
156 | tasks.push( | |
157 | // TODO: refractoring | |
158 | function (callback) { | |
159 | const options = { | |
160 | announceList: [ | |
161 | [ constants.CONFIG.WEBSERVER.WS + '://' + constants.CONFIG.WEBSERVER.HOSTNAME + ':' + constants.CONFIG.WEBSERVER.PORT + '/tracker/socket' ] | |
162 | ], | |
163 | urlList: [ | |
164 | constants.CONFIG.WEBSERVER.URL + constants.STATIC_PATHS.WEBSEED + video.getVideoFilename() | |
165 | ] | |
166 | } | |
167 | ||
168 | createTorrent(videoPath, options, function (err, torrent) { | |
169 | if (err) return callback(err) | |
170 | ||
171 | fs.writeFile(constants.CONFIG.STORAGE.TORRENTS_DIR + video.getTorrentName(), torrent, function (err) { | |
172 | if (err) return callback(err) | |
173 | ||
174 | const parsedTorrent = parseTorrent(torrent) | |
175 | video.set('infoHash', parsedTorrent.infoHash) | |
176 | video.validate().asCallback(callback) | |
177 | }) | |
178 | }) | |
179 | }, | |
180 | function (callback) { | |
181 | createThumbnail(video, videoPath, callback) | |
182 | }, | |
183 | function (callback) { | |
184 | createPreview(video, videoPath, callback) | |
185 | } | |
186 | ) | |
187 | ||
188 | return parallel(tasks, next) | |
189 | } | |
190 | ||
191 | return next() | |
192 | } | |
193 | ||
194 | function afterDestroy (video, options, next) { | |
195 | const tasks = [] | |
196 | ||
197 | tasks.push( | |
198 | function (callback) { | |
199 | removeThumbnail(video, callback) | |
200 | } | |
201 | ) | |
202 | ||
203 | if (video.isOwned()) { | |
204 | tasks.push( | |
205 | function (callback) { | |
206 | removeFile(video, callback) | |
207 | }, | |
208 | function (callback) { | |
209 | removeTorrent(video, callback) | |
210 | }, | |
211 | function (callback) { | |
212 | removePreview(video, callback) | |
213 | } | |
214 | ) | |
215 | } | |
216 | ||
217 | parallel(tasks, next) | |
218 | } | |
219 | ||
220 | // ------------------------------ METHODS ------------------------------ | |
221 | ||
222 | function associate (models) { | |
223 | this.belongsTo(models.Author, { | |
224 | foreignKey: { | |
225 | name: 'authorId', | |
226 | allowNull: false | |
227 | }, | |
228 | onDelete: 'cascade' | |
229 | }) | |
230 | ||
231 | this.belongsToMany(models.Tag, { | |
232 | foreignKey: 'videoId', | |
233 | through: models.VideoTag, | |
234 | onDelete: 'cascade' | |
235 | }) | |
236 | } | |
237 | ||
238 | function generateMagnetUri () { | |
239 | let baseUrlHttp, baseUrlWs | |
240 | ||
241 | if (this.isOwned()) { | |
242 | baseUrlHttp = constants.CONFIG.WEBSERVER.URL | |
243 | baseUrlWs = constants.CONFIG.WEBSERVER.WS + '://' + constants.CONFIG.WEBSERVER.HOSTNAME + ':' + constants.CONFIG.WEBSERVER.PORT | |
244 | } else { | |
245 | baseUrlHttp = constants.REMOTE_SCHEME.HTTP + '://' + this.Author.Pod.host | |
246 | baseUrlWs = constants.REMOTE_SCHEME.WS + '://' + this.Author.Pod.host | |
247 | } | |
248 | ||
249 | const xs = baseUrlHttp + constants.STATIC_PATHS.TORRENTS + this.getTorrentName() | |
250 | const announce = baseUrlWs + '/tracker/socket' | |
251 | const urlList = [ baseUrlHttp + constants.STATIC_PATHS.WEBSEED + this.getVideoFilename() ] | |
252 | ||
253 | const magnetHash = { | |
254 | xs, | |
255 | announce, | |
256 | urlList, | |
257 | infoHash: this.infoHash, | |
258 | name: this.name | |
259 | } | |
260 | ||
261 | return magnetUtil.encode(magnetHash) | |
262 | } | |
263 | ||
264 | function getVideoFilename () { | |
265 | if (this.isOwned()) return this.id + this.extname | |
266 | ||
267 | return this.remoteId + this.extname | |
268 | } | |
269 | ||
270 | function getThumbnailName () { | |
271 | // We always have a copy of the thumbnail | |
272 | return this.id + '.jpg' | |
273 | } | |
274 | ||
275 | function getPreviewName () { | |
276 | const extension = '.jpg' | |
277 | ||
278 | if (this.isOwned()) return this.id + extension | |
279 | ||
280 | return this.remoteId + extension | |
281 | } | |
282 | ||
283 | function getTorrentName () { | |
284 | const extension = '.torrent' | |
285 | ||
286 | if (this.isOwned()) return this.id + extension | |
287 | ||
288 | return this.remoteId + extension | |
289 | } | |
290 | ||
291 | function isOwned () { | |
292 | return this.remoteId === null | |
293 | } | |
294 | ||
295 | function toFormatedJSON () { | |
296 | let podHost | |
297 | ||
298 | if (this.Author.Pod) { | |
299 | podHost = this.Author.Pod.host | |
300 | } else { | |
301 | // It means it's our video | |
302 | podHost = constants.CONFIG.WEBSERVER.HOST | |
303 | } | |
304 | ||
305 | const json = { | |
306 | id: this.id, | |
307 | name: this.name, | |
308 | description: this.description, | |
309 | podHost, | |
310 | isLocal: this.isOwned(), | |
311 | magnetUri: this.generateMagnetUri(), | |
312 | author: this.Author.name, | |
313 | duration: this.duration, | |
314 | tags: map(this.Tags, 'name'), | |
315 | thumbnailPath: constants.STATIC_PATHS.THUMBNAILS + '/' + this.getThumbnailName(), | |
316 | createdAt: this.createdAt | |
317 | } | |
318 | ||
319 | return json | |
320 | } | |
321 | ||
322 | function toRemoteJSON (callback) { | |
323 | const self = this | |
324 | ||
325 | // Convert thumbnail to base64 | |
326 | const thumbnailPath = pathUtils.join(constants.CONFIG.STORAGE.THUMBNAILS_DIR, this.getThumbnailName()) | |
327 | fs.readFile(thumbnailPath, function (err, thumbnailData) { | |
328 | if (err) { | |
329 | logger.error('Cannot read the thumbnail of the video') | |
330 | return callback(err) | |
331 | } | |
332 | ||
333 | const remoteVideo = { | |
334 | name: self.name, | |
335 | description: self.description, | |
336 | infoHash: self.infoHash, | |
337 | remoteId: self.id, | |
338 | author: self.Author.name, | |
339 | duration: self.duration, | |
340 | thumbnailBase64: new Buffer(thumbnailData).toString('base64'), | |
341 | tags: map(self.Tags, 'name'), | |
342 | createdAt: self.createdAt, | |
343 | extname: self.extname | |
344 | } | |
345 | ||
346 | return callback(null, remoteVideo) | |
347 | }) | |
348 | } | |
349 | ||
350 | // ------------------------------ STATICS ------------------------------ | |
351 | ||
352 | function generateThumbnailFromBase64 (video, thumbnailData, callback) { | |
353 | // Creating the thumbnail for a remote video | |
354 | ||
355 | const thumbnailName = video.getThumbnailName() | |
356 | const thumbnailPath = constants.CONFIG.STORAGE.THUMBNAILS_DIR + thumbnailName | |
357 | fs.writeFile(thumbnailPath, thumbnailData, { encoding: 'base64' }, function (err) { | |
358 | if (err) return callback(err) | |
359 | ||
360 | return callback(null, thumbnailName) | |
361 | }) | |
362 | } | |
363 | ||
364 | function getDurationFromFile (videoPath, callback) { | |
365 | ffmpeg.ffprobe(videoPath, function (err, metadata) { | |
366 | if (err) return callback(err) | |
367 | ||
368 | return callback(null, Math.floor(metadata.format.duration)) | |
369 | }) | |
370 | } | |
371 | ||
372 | function list (callback) { | |
373 | return this.find().asCallback() | |
374 | } | |
375 | ||
376 | function listForApi (start, count, sort, callback) { | |
377 | const query = { | |
378 | offset: start, | |
379 | limit: count, | |
380 | distinct: true, // For the count, a video can have many tags | |
381 | order: [ modelUtils.getSort(sort), [ this.sequelize.models.Tag, 'name', 'ASC' ] ], | |
382 | include: [ | |
383 | { | |
384 | model: this.sequelize.models.Author, | |
385 | include: [ { model: this.sequelize.models.Pod, required: false } ] | |
386 | }, | |
387 | ||
388 | this.sequelize.models.Tag | |
389 | ] | |
390 | } | |
391 | ||
392 | return this.findAndCountAll(query).asCallback(function (err, result) { | |
393 | if (err) return callback(err) | |
394 | ||
395 | return callback(null, result.rows, result.count) | |
396 | }) | |
397 | } | |
398 | ||
399 | function listByHostAndRemoteId (fromHost, remoteId, callback) { | |
400 | const query = { | |
401 | where: { | |
402 | remoteId: remoteId | |
403 | }, | |
404 | include: [ | |
405 | { | |
406 | model: this.sequelize.models.Author, | |
407 | include: [ | |
408 | { | |
409 | model: this.sequelize.models.Pod, | |
410 | required: true, | |
411 | where: { | |
412 | host: fromHost | |
413 | } | |
414 | } | |
415 | ] | |
416 | } | |
417 | ] | |
418 | } | |
419 | ||
420 | return this.findAll(query).asCallback(callback) | |
421 | } | |
422 | ||
423 | function listOwnedAndPopulateAuthorAndTags (callback) { | |
424 | // If remoteId is null this is *our* video | |
425 | const query = { | |
426 | where: { | |
427 | remoteId: null | |
428 | }, | |
429 | include: [ this.sequelize.models.Author, this.sequelize.models.Tag ] | |
430 | } | |
431 | ||
432 | return this.findAll(query).asCallback(callback) | |
433 | } | |
434 | ||
435 | function listOwnedByAuthor (author, callback) { | |
436 | const query = { | |
437 | where: { | |
438 | remoteId: null | |
439 | }, | |
440 | include: [ | |
441 | { | |
442 | model: this.sequelize.models.Author, | |
443 | where: { | |
444 | name: author | |
445 | } | |
446 | } | |
447 | ] | |
448 | } | |
449 | ||
450 | return this.findAll(query).asCallback(callback) | |
451 | } | |
452 | ||
453 | function load (id, callback) { | |
454 | return this.findById(id).asCallback(callback) | |
455 | } | |
456 | ||
457 | function loadAndPopulateAuthor (id, callback) { | |
458 | const options = { | |
459 | include: [ this.sequelize.models.Author ] | |
460 | } | |
461 | ||
462 | return this.findById(id, options).asCallback(callback) | |
463 | } | |
464 | ||
465 | function loadAndPopulateAuthorAndPodAndTags (id, callback) { | |
466 | const options = { | |
467 | include: [ | |
468 | { | |
469 | model: this.sequelize.models.Author, | |
470 | include: [ { model: this.sequelize.models.Pod, required: false } ] | |
471 | }, | |
472 | this.sequelize.models.Tag | |
473 | ] | |
474 | } | |
475 | ||
476 | return this.findById(id, options).asCallback(callback) | |
477 | } | |
478 | ||
479 | function searchAndPopulateAuthorAndPodAndTags (value, field, start, count, sort, callback) { | |
480 | const podInclude = { | |
481 | model: this.sequelize.models.Pod, | |
482 | required: false | |
483 | } | |
484 | ||
485 | const authorInclude = { | |
486 | model: this.sequelize.models.Author, | |
487 | include: [ | |
488 | podInclude | |
489 | ] | |
490 | } | |
491 | ||
492 | const tagInclude = { | |
493 | model: this.sequelize.models.Tag | |
494 | } | |
495 | ||
496 | const query = { | |
497 | where: {}, | |
498 | offset: start, | |
499 | limit: count, | |
500 | distinct: true, // For the count, a video can have many tags | |
501 | order: [ modelUtils.getSort(sort), [ this.sequelize.models.Tag, 'name', 'ASC' ] ] | |
502 | } | |
503 | ||
504 | // Make an exact search with the magnet | |
505 | if (field === 'magnetUri') { | |
506 | const infoHash = magnetUtil.decode(value).infoHash | |
507 | query.where.infoHash = infoHash | |
508 | } else if (field === 'tags') { | |
509 | const escapedValue = this.sequelize.escape('%' + value + '%') | |
510 | query.where = { | |
511 | id: { | |
512 | $in: this.sequelize.literal( | |
513 | '(SELECT "VideoTags"."videoId" FROM "Tags" INNER JOIN "VideoTags" ON "Tags"."id" = "VideoTags"."tagId" WHERE name LIKE ' + escapedValue + ')' | |
514 | ) | |
515 | } | |
516 | } | |
517 | } else if (field === 'host') { | |
518 | // FIXME: Include our pod? (not stored in the database) | |
519 | podInclude.where = { | |
520 | host: { | |
521 | $like: '%' + value + '%' | |
522 | } | |
523 | } | |
524 | podInclude.required = true | |
525 | } else if (field === 'author') { | |
526 | authorInclude.where = { | |
527 | name: { | |
528 | $like: '%' + value + '%' | |
529 | } | |
530 | } | |
531 | ||
532 | // authorInclude.or = true | |
533 | } else { | |
534 | query.where[field] = { | |
535 | $like: '%' + value + '%' | |
536 | } | |
537 | } | |
538 | ||
539 | query.include = [ | |
540 | authorInclude, tagInclude | |
541 | ] | |
542 | ||
543 | if (tagInclude.where) { | |
544 | // query.include.push([ this.sequelize.models.Tag ]) | |
545 | } | |
546 | ||
547 | return this.findAndCountAll(query).asCallback(function (err, result) { | |
548 | if (err) return callback(err) | |
549 | ||
550 | return callback(null, result.rows, result.count) | |
551 | }) | |
552 | } | |
553 | ||
554 | // --------------------------------------------------------------------------- | |
555 | ||
556 | function removeThumbnail (video, callback) { | |
557 | fs.unlink(constants.CONFIG.STORAGE.THUMBNAILS_DIR + video.getThumbnailName(), callback) | |
558 | } | |
559 | ||
560 | function removeFile (video, callback) { | |
561 | fs.unlink(constants.CONFIG.STORAGE.VIDEOS_DIR + video.getVideoFilename(), callback) | |
562 | } | |
563 | ||
564 | function removeTorrent (video, callback) { | |
565 | fs.unlink(constants.CONFIG.STORAGE.TORRENTS_DIR + video.getTorrentName(), callback) | |
566 | } | |
567 | ||
568 | function removePreview (video, callback) { | |
569 | // Same name than video thumnail | |
570 | fs.unlink(constants.CONFIG.STORAGE.PREVIEWS_DIR + video.getPreviewName(), callback) | |
571 | } | |
572 | ||
573 | function createPreview (video, videoPath, callback) { | |
574 | generateImage(video, videoPath, constants.CONFIG.STORAGE.PREVIEWS_DIR, video.getPreviewName(), callback) | |
575 | } | |
576 | ||
577 | function createThumbnail (video, videoPath, callback) { | |
578 | generateImage(video, videoPath, constants.CONFIG.STORAGE.THUMBNAILS_DIR, video.getThumbnailName(), constants.THUMBNAILS_SIZE, callback) | |
579 | } | |
580 | ||
581 | function generateImage (video, videoPath, folder, imageName, size, callback) { | |
582 | const options = { | |
583 | filename: imageName, | |
584 | count: 1, | |
585 | folder | |
586 | } | |
587 | ||
588 | if (!callback) { | |
589 | callback = size | |
590 | } else { | |
591 | options.size = size | |
592 | } | |
593 | ||
594 | ffmpeg(videoPath) | |
595 | .on('error', callback) | |
596 | .on('end', function () { | |
597 | callback(null, imageName) | |
598 | }) | |
599 | .thumbnail(options) | |
600 | } |