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1 | 'use strict' | |
2 | ||
3 | const Buffer = require('safe-buffer').Buffer | |
4 | const createTorrent = require('create-torrent') | |
5 | const ffmpeg = require('fluent-ffmpeg') | |
6 | const fs = require('fs') | |
7 | const magnetUtil = require('magnet-uri') | |
8 | const map = require('lodash/map') | |
9 | const parallel = require('async/parallel') | |
10 | const parseTorrent = require('parse-torrent') | |
11 | const pathUtils = require('path') | |
12 | const values = require('lodash/values') | |
13 | ||
14 | const constants = require('../initializers/constants') | |
15 | const logger = require('../helpers/logger') | |
16 | const friends = require('../lib/friends') | |
17 | const modelUtils = require('./utils') | |
18 | const customVideosValidators = require('../helpers/custom-validators').videos | |
19 | ||
20 | // --------------------------------------------------------------------------- | |
21 | ||
22 | module.exports = function (sequelize, DataTypes) { | |
23 | // TODO: add indexes on searchable columns | |
24 | const Video = sequelize.define('Video', | |
25 | { | |
26 | id: { | |
27 | type: DataTypes.UUID, | |
28 | defaultValue: DataTypes.UUIDV4, | |
29 | primaryKey: true, | |
30 | validate: { | |
31 | isUUID: 4 | |
32 | } | |
33 | }, | |
34 | name: { | |
35 | type: DataTypes.STRING, | |
36 | allowNull: false, | |
37 | validate: { | |
38 | nameValid: function (value) { | |
39 | const res = customVideosValidators.isVideoNameValid(value) | |
40 | if (res === false) throw new Error('Video name is not valid.') | |
41 | } | |
42 | } | |
43 | }, | |
44 | extname: { | |
45 | type: DataTypes.ENUM(values(constants.CONSTRAINTS_FIELDS.VIDEOS.EXTNAME)), | |
46 | allowNull: false | |
47 | }, | |
48 | remoteId: { | |
49 | type: DataTypes.UUID, | |
50 | allowNull: true, | |
51 | validate: { | |
52 | isUUID: 4 | |
53 | } | |
54 | }, | |
55 | description: { | |
56 | type: DataTypes.STRING, | |
57 | allowNull: false, | |
58 | validate: { | |
59 | descriptionValid: function (value) { | |
60 | const res = customVideosValidators.isVideoDescriptionValid(value) | |
61 | if (res === false) throw new Error('Video description is not valid.') | |
62 | } | |
63 | } | |
64 | }, | |
65 | infoHash: { | |
66 | type: DataTypes.STRING, | |
67 | allowNull: false, | |
68 | validate: { | |
69 | infoHashValid: function (value) { | |
70 | const res = customVideosValidators.isVideoInfoHashValid(value) | |
71 | if (res === false) throw new Error('Video info hash is not valid.') | |
72 | } | |
73 | } | |
74 | }, | |
75 | duration: { | |
76 | type: DataTypes.INTEGER, | |
77 | allowNull: false, | |
78 | validate: { | |
79 | durationValid: function (value) { | |
80 | const res = customVideosValidators.isVideoDurationValid(value) | |
81 | if (res === false) throw new Error('Video duration is not valid.') | |
82 | } | |
83 | } | |
84 | } | |
85 | }, | |
86 | { | |
87 | indexes: [ | |
88 | { | |
89 | fields: [ 'authorId' ] | |
90 | }, | |
91 | { | |
92 | fields: [ 'remoteId' ] | |
93 | }, | |
94 | { | |
95 | fields: [ 'name' ] | |
96 | }, | |
97 | { | |
98 | fields: [ 'createdAt' ] | |
99 | }, | |
100 | { | |
101 | fields: [ 'duration' ] | |
102 | }, | |
103 | { | |
104 | fields: [ 'infoHash' ] | |
105 | } | |
106 | ], | |
107 | classMethods: { | |
108 | associate, | |
109 | ||
110 | generateThumbnailFromData, | |
111 | getDurationFromFile, | |
112 | list, | |
113 | listForApi, | |
114 | listByHostAndRemoteId, | |
115 | listOwnedAndPopulateAuthorAndTags, | |
116 | listOwnedByAuthor, | |
117 | load, | |
118 | loadAndPopulateAuthor, | |
119 | loadAndPopulateAuthorAndPodAndTags, | |
120 | searchAndPopulateAuthorAndPodAndTags | |
121 | }, | |
122 | instanceMethods: { | |
123 | generateMagnetUri, | |
124 | getVideoFilename, | |
125 | getThumbnailName, | |
126 | getPreviewName, | |
127 | getTorrentName, | |
128 | isOwned, | |
129 | toFormatedJSON, | |
130 | toRemoteJSON | |
131 | }, | |
132 | hooks: { | |
133 | beforeValidate, | |
134 | beforeCreate, | |
135 | afterDestroy | |
136 | } | |
137 | } | |
138 | ) | |
139 | ||
140 | return Video | |
141 | } | |
142 | ||
143 | function beforeValidate (video, options, next) { | |
144 | if (video.isOwned()) { | |
145 | // 40 hexa length | |
146 | video.infoHash = '0123456789abcdef0123456789abcdef01234567' | |
147 | } | |
148 | ||
149 | return next(null) | |
150 | } | |
151 | ||
152 | function beforeCreate (video, options, next) { | |
153 | const tasks = [] | |
154 | ||
155 | if (video.isOwned()) { | |
156 | const videoPath = pathUtils.join(constants.CONFIG.STORAGE.VIDEOS_DIR, video.getVideoFilename()) | |
157 | ||
158 | tasks.push( | |
159 | // TODO: refractoring | |
160 | function (callback) { | |
161 | const options = { | |
162 | announceList: [ | |
163 | [ constants.CONFIG.WEBSERVER.WS + '://' + constants.CONFIG.WEBSERVER.HOSTNAME + ':' + constants.CONFIG.WEBSERVER.PORT + '/tracker/socket' ] | |
164 | ], | |
165 | urlList: [ | |
166 | constants.CONFIG.WEBSERVER.URL + constants.STATIC_PATHS.WEBSEED + video.getVideoFilename() | |
167 | ] | |
168 | } | |
169 | ||
170 | createTorrent(videoPath, options, function (err, torrent) { | |
171 | if (err) return callback(err) | |
172 | ||
173 | fs.writeFile(constants.CONFIG.STORAGE.TORRENTS_DIR + video.getTorrentName(), torrent, function (err) { | |
174 | if (err) return callback(err) | |
175 | ||
176 | const parsedTorrent = parseTorrent(torrent) | |
177 | video.set('infoHash', parsedTorrent.infoHash) | |
178 | video.validate().asCallback(callback) | |
179 | }) | |
180 | }) | |
181 | }, | |
182 | function (callback) { | |
183 | createThumbnail(video, videoPath, callback) | |
184 | }, | |
185 | function (callback) { | |
186 | createPreview(video, videoPath, callback) | |
187 | } | |
188 | ) | |
189 | ||
190 | return parallel(tasks, next) | |
191 | } | |
192 | ||
193 | return next() | |
194 | } | |
195 | ||
196 | function afterDestroy (video, options, next) { | |
197 | const tasks = [] | |
198 | ||
199 | tasks.push( | |
200 | function (callback) { | |
201 | removeThumbnail(video, callback) | |
202 | } | |
203 | ) | |
204 | ||
205 | if (video.isOwned()) { | |
206 | tasks.push( | |
207 | function (callback) { | |
208 | removeFile(video, callback) | |
209 | }, | |
210 | ||
211 | function (callback) { | |
212 | removeTorrent(video, callback) | |
213 | }, | |
214 | ||
215 | function (callback) { | |
216 | removePreview(video, callback) | |
217 | }, | |
218 | ||
219 | function (callback) { | |
220 | const params = { | |
221 | name: video.name, | |
222 | remoteId: video.id | |
223 | } | |
224 | ||
225 | friends.removeVideoToFriends(params) | |
226 | ||
227 | return callback() | |
228 | } | |
229 | ) | |
230 | } | |
231 | ||
232 | parallel(tasks, next) | |
233 | } | |
234 | ||
235 | // ------------------------------ METHODS ------------------------------ | |
236 | ||
237 | function associate (models) { | |
238 | this.belongsTo(models.Author, { | |
239 | foreignKey: { | |
240 | name: 'authorId', | |
241 | allowNull: false | |
242 | }, | |
243 | onDelete: 'cascade' | |
244 | }) | |
245 | ||
246 | this.belongsToMany(models.Tag, { | |
247 | foreignKey: 'videoId', | |
248 | through: models.VideoTag, | |
249 | onDelete: 'cascade' | |
250 | }) | |
251 | } | |
252 | ||
253 | function generateMagnetUri () { | |
254 | let baseUrlHttp, baseUrlWs | |
255 | ||
256 | if (this.isOwned()) { | |
257 | baseUrlHttp = constants.CONFIG.WEBSERVER.URL | |
258 | baseUrlWs = constants.CONFIG.WEBSERVER.WS + '://' + constants.CONFIG.WEBSERVER.HOSTNAME + ':' + constants.CONFIG.WEBSERVER.PORT | |
259 | } else { | |
260 | baseUrlHttp = constants.REMOTE_SCHEME.HTTP + '://' + this.Author.Pod.host | |
261 | baseUrlWs = constants.REMOTE_SCHEME.WS + '://' + this.Author.Pod.host | |
262 | } | |
263 | ||
264 | const xs = baseUrlHttp + constants.STATIC_PATHS.TORRENTS + this.getTorrentName() | |
265 | const announce = baseUrlWs + '/tracker/socket' | |
266 | const urlList = [ baseUrlHttp + constants.STATIC_PATHS.WEBSEED + this.getVideoFilename() ] | |
267 | ||
268 | const magnetHash = { | |
269 | xs, | |
270 | announce, | |
271 | urlList, | |
272 | infoHash: this.infoHash, | |
273 | name: this.name | |
274 | } | |
275 | ||
276 | return magnetUtil.encode(magnetHash) | |
277 | } | |
278 | ||
279 | function getVideoFilename () { | |
280 | if (this.isOwned()) return this.id + this.extname | |
281 | ||
282 | return this.remoteId + this.extname | |
283 | } | |
284 | ||
285 | function getThumbnailName () { | |
286 | // We always have a copy of the thumbnail | |
287 | return this.id + '.jpg' | |
288 | } | |
289 | ||
290 | function getPreviewName () { | |
291 | const extension = '.jpg' | |
292 | ||
293 | if (this.isOwned()) return this.id + extension | |
294 | ||
295 | return this.remoteId + extension | |
296 | } | |
297 | ||
298 | function getTorrentName () { | |
299 | const extension = '.torrent' | |
300 | ||
301 | if (this.isOwned()) return this.id + extension | |
302 | ||
303 | return this.remoteId + extension | |
304 | } | |
305 | ||
306 | function isOwned () { | |
307 | return this.remoteId === null | |
308 | } | |
309 | ||
310 | function toFormatedJSON () { | |
311 | let podHost | |
312 | ||
313 | if (this.Author.Pod) { | |
314 | podHost = this.Author.Pod.host | |
315 | } else { | |
316 | // It means it's our video | |
317 | podHost = constants.CONFIG.WEBSERVER.HOST | |
318 | } | |
319 | ||
320 | const json = { | |
321 | id: this.id, | |
322 | name: this.name, | |
323 | description: this.description, | |
324 | podHost, | |
325 | isLocal: this.isOwned(), | |
326 | magnetUri: this.generateMagnetUri(), | |
327 | author: this.Author.name, | |
328 | duration: this.duration, | |
329 | tags: map(this.Tags, 'name'), | |
330 | thumbnailPath: constants.STATIC_PATHS.THUMBNAILS + '/' + this.getThumbnailName(), | |
331 | createdAt: this.createdAt | |
332 | } | |
333 | ||
334 | return json | |
335 | } | |
336 | ||
337 | function toRemoteJSON (callback) { | |
338 | const self = this | |
339 | ||
340 | // Get thumbnail data to send to the other pod | |
341 | const thumbnailPath = pathUtils.join(constants.CONFIG.STORAGE.THUMBNAILS_DIR, this.getThumbnailName()) | |
342 | fs.readFile(thumbnailPath, function (err, thumbnailData) { | |
343 | if (err) { | |
344 | logger.error('Cannot read the thumbnail of the video') | |
345 | return callback(err) | |
346 | } | |
347 | ||
348 | const remoteVideo = { | |
349 | name: self.name, | |
350 | description: self.description, | |
351 | infoHash: self.infoHash, | |
352 | remoteId: self.id, | |
353 | author: self.Author.name, | |
354 | duration: self.duration, | |
355 | thumbnailData: thumbnailData.toString('binary'), | |
356 | tags: map(self.Tags, 'name'), | |
357 | createdAt: self.createdAt, | |
358 | extname: self.extname | |
359 | } | |
360 | ||
361 | return callback(null, remoteVideo) | |
362 | }) | |
363 | } | |
364 | ||
365 | // ------------------------------ STATICS ------------------------------ | |
366 | ||
367 | function generateThumbnailFromData (video, thumbnailData, callback) { | |
368 | // Creating the thumbnail for a remote video | |
369 | ||
370 | const thumbnailName = video.getThumbnailName() | |
371 | const thumbnailPath = constants.CONFIG.STORAGE.THUMBNAILS_DIR + thumbnailName | |
372 | fs.writeFile(thumbnailPath, Buffer.from(thumbnailData, 'binary'), function (err) { | |
373 | if (err) return callback(err) | |
374 | ||
375 | return callback(null, thumbnailName) | |
376 | }) | |
377 | } | |
378 | ||
379 | function getDurationFromFile (videoPath, callback) { | |
380 | ffmpeg.ffprobe(videoPath, function (err, metadata) { | |
381 | if (err) return callback(err) | |
382 | ||
383 | return callback(null, Math.floor(metadata.format.duration)) | |
384 | }) | |
385 | } | |
386 | ||
387 | function list (callback) { | |
388 | return this.find().asCallback() | |
389 | } | |
390 | ||
391 | function listForApi (start, count, sort, callback) { | |
392 | const query = { | |
393 | offset: start, | |
394 | limit: count, | |
395 | distinct: true, // For the count, a video can have many tags | |
396 | order: [ modelUtils.getSort(sort), [ this.sequelize.models.Tag, 'name', 'ASC' ] ], | |
397 | include: [ | |
398 | { | |
399 | model: this.sequelize.models.Author, | |
400 | include: [ { model: this.sequelize.models.Pod, required: false } ] | |
401 | }, | |
402 | ||
403 | this.sequelize.models.Tag | |
404 | ] | |
405 | } | |
406 | ||
407 | return this.findAndCountAll(query).asCallback(function (err, result) { | |
408 | if (err) return callback(err) | |
409 | ||
410 | return callback(null, result.rows, result.count) | |
411 | }) | |
412 | } | |
413 | ||
414 | function listByHostAndRemoteId (fromHost, remoteId, callback) { | |
415 | const query = { | |
416 | where: { | |
417 | remoteId: remoteId | |
418 | }, | |
419 | include: [ | |
420 | { | |
421 | model: this.sequelize.models.Author, | |
422 | include: [ | |
423 | { | |
424 | model: this.sequelize.models.Pod, | |
425 | required: true, | |
426 | where: { | |
427 | host: fromHost | |
428 | } | |
429 | } | |
430 | ] | |
431 | } | |
432 | ] | |
433 | } | |
434 | ||
435 | return this.findAll(query).asCallback(callback) | |
436 | } | |
437 | ||
438 | function listOwnedAndPopulateAuthorAndTags (callback) { | |
439 | // If remoteId is null this is *our* video | |
440 | const query = { | |
441 | where: { | |
442 | remoteId: null | |
443 | }, | |
444 | include: [ this.sequelize.models.Author, this.sequelize.models.Tag ] | |
445 | } | |
446 | ||
447 | return this.findAll(query).asCallback(callback) | |
448 | } | |
449 | ||
450 | function listOwnedByAuthor (author, callback) { | |
451 | const query = { | |
452 | where: { | |
453 | remoteId: null | |
454 | }, | |
455 | include: [ | |
456 | { | |
457 | model: this.sequelize.models.Author, | |
458 | where: { | |
459 | name: author | |
460 | } | |
461 | } | |
462 | ] | |
463 | } | |
464 | ||
465 | return this.findAll(query).asCallback(callback) | |
466 | } | |
467 | ||
468 | function load (id, callback) { | |
469 | return this.findById(id).asCallback(callback) | |
470 | } | |
471 | ||
472 | function loadAndPopulateAuthor (id, callback) { | |
473 | const options = { | |
474 | include: [ this.sequelize.models.Author ] | |
475 | } | |
476 | ||
477 | return this.findById(id, options).asCallback(callback) | |
478 | } | |
479 | ||
480 | function loadAndPopulateAuthorAndPodAndTags (id, callback) { | |
481 | const options = { | |
482 | include: [ | |
483 | { | |
484 | model: this.sequelize.models.Author, | |
485 | include: [ { model: this.sequelize.models.Pod, required: false } ] | |
486 | }, | |
487 | this.sequelize.models.Tag | |
488 | ] | |
489 | } | |
490 | ||
491 | return this.findById(id, options).asCallback(callback) | |
492 | } | |
493 | ||
494 | function searchAndPopulateAuthorAndPodAndTags (value, field, start, count, sort, callback) { | |
495 | const podInclude = { | |
496 | model: this.sequelize.models.Pod, | |
497 | required: false | |
498 | } | |
499 | ||
500 | const authorInclude = { | |
501 | model: this.sequelize.models.Author, | |
502 | include: [ | |
503 | podInclude | |
504 | ] | |
505 | } | |
506 | ||
507 | const tagInclude = { | |
508 | model: this.sequelize.models.Tag | |
509 | } | |
510 | ||
511 | const query = { | |
512 | where: {}, | |
513 | offset: start, | |
514 | limit: count, | |
515 | distinct: true, // For the count, a video can have many tags | |
516 | order: [ modelUtils.getSort(sort), [ this.sequelize.models.Tag, 'name', 'ASC' ] ] | |
517 | } | |
518 | ||
519 | // Make an exact search with the magnet | |
520 | if (field === 'magnetUri') { | |
521 | const infoHash = magnetUtil.decode(value).infoHash | |
522 | query.where.infoHash = infoHash | |
523 | } else if (field === 'tags') { | |
524 | const escapedValue = this.sequelize.escape('%' + value + '%') | |
525 | query.where = { | |
526 | id: { | |
527 | $in: this.sequelize.literal( | |
528 | '(SELECT "VideoTags"."videoId" FROM "Tags" INNER JOIN "VideoTags" ON "Tags"."id" = "VideoTags"."tagId" WHERE name LIKE ' + escapedValue + ')' | |
529 | ) | |
530 | } | |
531 | } | |
532 | } else if (field === 'host') { | |
533 | // FIXME: Include our pod? (not stored in the database) | |
534 | podInclude.where = { | |
535 | host: { | |
536 | $like: '%' + value + '%' | |
537 | } | |
538 | } | |
539 | podInclude.required = true | |
540 | } else if (field === 'author') { | |
541 | authorInclude.where = { | |
542 | name: { | |
543 | $like: '%' + value + '%' | |
544 | } | |
545 | } | |
546 | ||
547 | // authorInclude.or = true | |
548 | } else { | |
549 | query.where[field] = { | |
550 | $like: '%' + value + '%' | |
551 | } | |
552 | } | |
553 | ||
554 | query.include = [ | |
555 | authorInclude, tagInclude | |
556 | ] | |
557 | ||
558 | if (tagInclude.where) { | |
559 | // query.include.push([ this.sequelize.models.Tag ]) | |
560 | } | |
561 | ||
562 | return this.findAndCountAll(query).asCallback(function (err, result) { | |
563 | if (err) return callback(err) | |
564 | ||
565 | return callback(null, result.rows, result.count) | |
566 | }) | |
567 | } | |
568 | ||
569 | // --------------------------------------------------------------------------- | |
570 | ||
571 | function removeThumbnail (video, callback) { | |
572 | fs.unlink(constants.CONFIG.STORAGE.THUMBNAILS_DIR + video.getThumbnailName(), callback) | |
573 | } | |
574 | ||
575 | function removeFile (video, callback) { | |
576 | fs.unlink(constants.CONFIG.STORAGE.VIDEOS_DIR + video.getVideoFilename(), callback) | |
577 | } | |
578 | ||
579 | function removeTorrent (video, callback) { | |
580 | fs.unlink(constants.CONFIG.STORAGE.TORRENTS_DIR + video.getTorrentName(), callback) | |
581 | } | |
582 | ||
583 | function removePreview (video, callback) { | |
584 | // Same name than video thumnail | |
585 | fs.unlink(constants.CONFIG.STORAGE.PREVIEWS_DIR + video.getPreviewName(), callback) | |
586 | } | |
587 | ||
588 | function createPreview (video, videoPath, callback) { | |
589 | generateImage(video, videoPath, constants.CONFIG.STORAGE.PREVIEWS_DIR, video.getPreviewName(), callback) | |
590 | } | |
591 | ||
592 | function createThumbnail (video, videoPath, callback) { | |
593 | generateImage(video, videoPath, constants.CONFIG.STORAGE.THUMBNAILS_DIR, video.getThumbnailName(), constants.THUMBNAILS_SIZE, callback) | |
594 | } | |
595 | ||
596 | function generateImage (video, videoPath, folder, imageName, size, callback) { | |
597 | const options = { | |
598 | filename: imageName, | |
599 | count: 1, | |
600 | folder | |
601 | } | |
602 | ||
603 | if (!callback) { | |
604 | callback = size | |
605 | } else { | |
606 | options.size = size | |
607 | } | |
608 | ||
609 | ffmpeg(videoPath) | |
610 | .on('error', callback) | |
611 | .on('end', function () { | |
612 | callback(null, imageName) | |
613 | }) | |
614 | .thumbnail(options) | |
615 | } |