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1 | 'use strict' | |
2 | ||
3 | const eachSeries = require('async/eachSeries') | |
4 | const express = require('express') | |
5 | const waterfall = require('async/waterfall') | |
6 | ||
7 | const db = require('../../initializers/database') | |
8 | const middlewares = require('../../middlewares') | |
9 | const secureMiddleware = middlewares.secure | |
10 | const validators = middlewares.validators.remote | |
11 | const logger = require('../../helpers/logger') | |
12 | ||
13 | const router = express.Router() | |
14 | ||
15 | router.post('/videos', | |
16 | validators.signature, | |
17 | secureMiddleware.checkSignature, | |
18 | validators.remoteVideos, | |
19 | remoteVideos | |
20 | ) | |
21 | ||
22 | // --------------------------------------------------------------------------- | |
23 | ||
24 | module.exports = router | |
25 | ||
26 | // --------------------------------------------------------------------------- | |
27 | ||
28 | function remoteVideos (req, res, next) { | |
29 | const requests = req.body.data | |
30 | const fromPod = res.locals.secure.pod | |
31 | ||
32 | // We need to process in the same order to keep consistency | |
33 | // TODO: optimization | |
34 | eachSeries(requests, function (request, callbackEach) { | |
35 | const videoData = request.data | |
36 | ||
37 | switch (request.type) { | |
38 | case 'add': | |
39 | addRemoteVideo(videoData, fromPod, callbackEach) | |
40 | break | |
41 | ||
42 | case 'update': | |
43 | updateRemoteVideo(videoData, fromPod, callbackEach) | |
44 | break | |
45 | ||
46 | case 'remove': | |
47 | removeRemoteVideo(videoData, fromPod, callbackEach) | |
48 | break | |
49 | ||
50 | default: | |
51 | logger.error('Unkown remote request type %s.', request.type) | |
52 | } | |
53 | }, function (err) { | |
54 | if (err) logger.error('Error managing remote videos.', { error: err }) | |
55 | }) | |
56 | ||
57 | // We don't need to keep the other pod waiting | |
58 | return res.type('json').status(204).end() | |
59 | } | |
60 | ||
61 | function addRemoteVideo (videoToCreateData, fromPod, finalCallback) { | |
62 | logger.debug('Adding remote video "%s".', videoToCreateData.name) | |
63 | ||
64 | waterfall([ | |
65 | ||
66 | function startTransaction (callback) { | |
67 | db.sequelize.transaction().asCallback(function (err, t) { | |
68 | return callback(err, t) | |
69 | }) | |
70 | }, | |
71 | ||
72 | function findOrCreateAuthor (t, callback) { | |
73 | const name = videoToCreateData.author | |
74 | const podId = fromPod.id | |
75 | // This author is from another pod so we do not associate a user | |
76 | const userId = null | |
77 | ||
78 | db.Author.findOrCreateAuthor(name, podId, userId, t, function (err, authorInstance) { | |
79 | return callback(err, t, authorInstance) | |
80 | }) | |
81 | }, | |
82 | ||
83 | function findOrCreateTags (t, author, callback) { | |
84 | const tags = videoToCreateData.tags | |
85 | ||
86 | db.Tag.findOrCreateTags(tags, t, function (err, tagInstances) { | |
87 | return callback(err, t, author, tagInstances) | |
88 | }) | |
89 | }, | |
90 | ||
91 | function createVideoObject (t, author, tagInstances, callback) { | |
92 | const videoData = { | |
93 | name: videoToCreateData.name, | |
94 | remoteId: videoToCreateData.remoteId, | |
95 | extname: videoToCreateData.extname, | |
96 | infoHash: videoToCreateData.infoHash, | |
97 | description: videoToCreateData.description, | |
98 | authorId: author.id, | |
99 | duration: videoToCreateData.duration, | |
100 | createdAt: videoToCreateData.createdAt, | |
101 | updatedAt: videoToCreateData.updatedAt | |
102 | } | |
103 | ||
104 | const video = db.Video.build(videoData) | |
105 | ||
106 | return callback(null, t, tagInstances, video) | |
107 | }, | |
108 | ||
109 | function generateThumbnail (t, tagInstances, video, callback) { | |
110 | db.Video.generateThumbnailFromData(video, videoToCreateData.thumbnailData, function (err) { | |
111 | if (err) { | |
112 | logger.error('Cannot generate thumbnail from data.', { error: err }) | |
113 | return callback(err) | |
114 | } | |
115 | ||
116 | return callback(err, t, tagInstances, video) | |
117 | }) | |
118 | }, | |
119 | ||
120 | function insertVideoIntoDB (t, tagInstances, video, callback) { | |
121 | const options = { | |
122 | transaction: t | |
123 | } | |
124 | ||
125 | video.save(options).asCallback(function (err, videoCreated) { | |
126 | return callback(err, t, tagInstances, videoCreated) | |
127 | }) | |
128 | }, | |
129 | ||
130 | function associateTagsToVideo (t, tagInstances, video, callback) { | |
131 | const options = { transaction: t } | |
132 | ||
133 | video.setTags(tagInstances, options).asCallback(function (err) { | |
134 | return callback(err, t) | |
135 | }) | |
136 | } | |
137 | ||
138 | ], function (err, t) { | |
139 | if (err) { | |
140 | logger.error('Cannot insert the remote video.') | |
141 | ||
142 | // Abort transaction? | |
143 | if (t) t.rollback() | |
144 | ||
145 | return finalCallback(err) | |
146 | } | |
147 | ||
148 | // Commit transaction | |
149 | t.commit() | |
150 | ||
151 | return finalCallback() | |
152 | }) | |
153 | } | |
154 | ||
155 | function updateRemoteVideo (videoAttributesToUpdate, fromPod, finalCallback) { | |
156 | logger.debug('Updating remote video "%s".', videoAttributesToUpdate.name) | |
157 | ||
158 | waterfall([ | |
159 | ||
160 | function startTransaction (callback) { | |
161 | db.sequelize.transaction().asCallback(function (err, t) { | |
162 | return callback(err, t) | |
163 | }) | |
164 | }, | |
165 | ||
166 | function findVideo (t, callback) { | |
167 | db.Video.loadByHostAndRemoteId(fromPod.host, videoAttributesToUpdate.remoteId, function (err, videoInstance) { | |
168 | if (err || !videoInstance) { | |
169 | logger.error('Cannot load video from host and remote id.', { error: err.message }) | |
170 | return callback(err) | |
171 | } | |
172 | ||
173 | return callback(null, t, videoInstance) | |
174 | }) | |
175 | }, | |
176 | ||
177 | function findOrCreateTags (t, videoInstance, callback) { | |
178 | const tags = videoAttributesToUpdate.tags | |
179 | ||
180 | db.Tag.findOrCreateTags(tags, t, function (err, tagInstances) { | |
181 | return callback(err, t, videoInstance, tagInstances) | |
182 | }) | |
183 | }, | |
184 | ||
185 | function updateVideoIntoDB (t, videoInstance, tagInstances, callback) { | |
186 | const options = { transaction: t } | |
187 | ||
188 | videoInstance.set('name', videoAttributesToUpdate.name) | |
189 | videoInstance.set('description', videoAttributesToUpdate.description) | |
190 | videoInstance.set('infoHash', videoAttributesToUpdate.infoHash) | |
191 | videoInstance.set('duration', videoAttributesToUpdate.duration) | |
192 | videoInstance.set('createdAt', videoAttributesToUpdate.createdAt) | |
193 | videoInstance.set('updatedAt', videoAttributesToUpdate.updatedAt) | |
194 | videoInstance.set('extname', videoAttributesToUpdate.extname) | |
195 | ||
196 | videoInstance.save(options).asCallback(function (err) { | |
197 | return callback(err, t, videoInstance, tagInstances) | |
198 | }) | |
199 | }, | |
200 | ||
201 | function associateTagsToVideo (t, videoInstance, tagInstances, callback) { | |
202 | const options = { transaction: t } | |
203 | ||
204 | videoInstance.setTags(tagInstances, options).asCallback(function (err) { | |
205 | return callback(err, t) | |
206 | }) | |
207 | } | |
208 | ||
209 | ], function (err, t) { | |
210 | if (err) { | |
211 | logger.error('Cannot update the remote video.') | |
212 | ||
213 | // Abort transaction? | |
214 | if (t) t.rollback() | |
215 | ||
216 | return finalCallback(err) | |
217 | } | |
218 | ||
219 | // Commit transaction | |
220 | t.commit() | |
221 | ||
222 | return finalCallback() | |
223 | }) | |
224 | } | |
225 | ||
226 | function removeRemoteVideo (videoToRemoveData, fromPod, callback) { | |
227 | // We need the instance because we have to remove some other stuffs (thumbnail etc) | |
228 | db.Video.loadByHostAndRemoteId(fromPod.host, videoToRemoveData.remoteId, function (err, video) { | |
229 | if (err || !video) { | |
230 | logger.error('Cannot load video from host and remote id.', { error: err.message }) | |
231 | return callback(err) | |
232 | } | |
233 | ||
234 | logger.debug('Removing remote video %s.', video.remoteId) | |
235 | video.destroy().asCallback(callback) | |
236 | }) | |
237 | } |