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Diffstat (limited to 'src/pods.js')
-rw-r--r-- | src/pods.js | 274 |
1 files changed, 0 insertions, 274 deletions
diff --git a/src/pods.js b/src/pods.js deleted file mode 100644 index defa9b1c1..000000000 --- a/src/pods.js +++ /dev/null | |||
@@ -1,274 +0,0 @@ | |||
1 | ;(function () { | ||
2 | 'use strict' | ||
3 | |||
4 | var async = require('async') | ||
5 | var config = require('config') | ||
6 | var fs = require('fs') | ||
7 | var request = require('request') | ||
8 | |||
9 | var constants = require('./constants') | ||
10 | var logger = require('./logger') | ||
11 | var PodsDB = require('./database').PodsDB | ||
12 | var poolRequests = require('./poolRequests') | ||
13 | var utils = require('./utils') | ||
14 | |||
15 | var pods = {} | ||
16 | |||
17 | var http = config.get('webserver.https') ? 'https' : 'http' | ||
18 | var host = config.get('webserver.host') | ||
19 | var port = config.get('webserver.port') | ||
20 | |||
21 | // ----------- Private functions ----------- | ||
22 | |||
23 | function getForeignPodsList (url, callback) { | ||
24 | var path = '/api/' + constants.API_VERSION + '/pods' | ||
25 | |||
26 | request.get(url + path, function (err, response, body) { | ||
27 | if (err) throw err | ||
28 | callback(JSON.parse(body)) | ||
29 | }) | ||
30 | } | ||
31 | |||
32 | // ----------- Public functions ----------- | ||
33 | |||
34 | pods.list = function (callback) { | ||
35 | PodsDB.find(function (err, pods_list) { | ||
36 | if (err) { | ||
37 | logger.error('Cannot get the list of the pods.', { error: err }) | ||
38 | return callback(err) | ||
39 | } | ||
40 | |||
41 | return callback(null, pods_list) | ||
42 | }) | ||
43 | } | ||
44 | |||
45 | // { url } | ||
46 | // TODO: check if the pod is not already a friend | ||
47 | pods.add = function (data, callback) { | ||
48 | var videos = require('./videos') | ||
49 | logger.info('Adding pod: %s', data.url) | ||
50 | |||
51 | var params = { | ||
52 | url: data.url, | ||
53 | publicKey: data.publicKey, | ||
54 | score: constants.FRIEND_BASE_SCORE | ||
55 | } | ||
56 | |||
57 | PodsDB.create(params, function (err, pod) { | ||
58 | if (err) { | ||
59 | logger.error('Cannot insert the pod.', { error: err }) | ||
60 | return callback(err) | ||
61 | } | ||
62 | |||
63 | videos.addRemotes(data.videos) | ||
64 | |||
65 | fs.readFile(utils.certDir + 'peertube.pub', 'utf8', function (err, cert) { | ||
66 | if (err) { | ||
67 | logger.error('Cannot read cert file.', { error: err }) | ||
68 | return callback(err) | ||
69 | } | ||
70 | |||
71 | videos.listOwned(function (err, videos_list) { | ||
72 | if (err) { | ||
73 | logger.error('Cannot get the list of owned videos.', { error: err }) | ||
74 | return callback(err) | ||
75 | } | ||
76 | |||
77 | return callback(null, { cert: cert, videos: videos_list }) | ||
78 | }) | ||
79 | }) | ||
80 | }) | ||
81 | } | ||
82 | |||
83 | pods.remove = function (url, callback) { | ||
84 | var videos = require('./videos') | ||
85 | logger.info('Removing %s pod.', url) | ||
86 | |||
87 | videos.removeAllRemotesOf(url, function (err) { | ||
88 | if (err) logger.error('Cannot remove all remote videos of %s.', url) | ||
89 | |||
90 | PodsDB.remove({ url: url }, function (err) { | ||
91 | if (err) return callback(err) | ||
92 | |||
93 | logger.info('%s pod removed.', url) | ||
94 | callback(null) | ||
95 | }) | ||
96 | }) | ||
97 | } | ||
98 | |||
99 | pods.addVideoToFriends = function (video) { | ||
100 | // To avoid duplicates | ||
101 | var id = video.name + video.magnetUri | ||
102 | poolRequests.addToPoolRequests(id, 'add', video) | ||
103 | } | ||
104 | |||
105 | pods.removeVideoToFriends = function (video) { | ||
106 | // To avoid duplicates | ||
107 | var id = video.name + video.magnetUri | ||
108 | poolRequests.addToPoolRequests(id, 'remove', video) | ||
109 | } | ||
110 | |||
111 | pods.makeFriends = function (callback) { | ||
112 | var videos = require('./videos') | ||
113 | var pods_score = {} | ||
114 | |||
115 | logger.info('Make friends!') | ||
116 | fs.readFile(utils.certDir + 'peertube.pub', 'utf8', function (err, cert) { | ||
117 | if (err) { | ||
118 | logger.error('Cannot read public cert.', { error: err }) | ||
119 | return callback(err) | ||
120 | } | ||
121 | |||
122 | var urls = config.get('network.friends') | ||
123 | |||
124 | async.each(urls, computeForeignPodsList, function () { | ||
125 | logger.debug('Pods scores computed.', { pods_score: pods_score }) | ||
126 | var pods_list = computeWinningPods(urls, pods_score) | ||
127 | logger.debug('Pods that we keep computed.', { pods_to_keep: pods_list }) | ||
128 | |||
129 | makeRequestsToWinningPods(cert, pods_list) | ||
130 | }) | ||
131 | }) | ||
132 | |||
133 | // ----------------------------------------------------------------------- | ||
134 | |||
135 | function computeForeignPodsList (url, callback) { | ||
136 | // Let's give 1 point to the pod we ask the friends list | ||
137 | pods_score[url] = 1 | ||
138 | |||
139 | getForeignPodsList(url, function (foreign_pods_list) { | ||
140 | if (foreign_pods_list.length === 0) return callback() | ||
141 | |||
142 | async.each(foreign_pods_list, function (foreign_pod, callback_each) { | ||
143 | var foreign_url = foreign_pod.url | ||
144 | |||
145 | if (pods_score[foreign_url]) pods_score[foreign_url]++ | ||
146 | else pods_score[foreign_url] = 1 | ||
147 | |||
148 | callback_each() | ||
149 | }, function () { | ||
150 | callback() | ||
151 | }) | ||
152 | }) | ||
153 | } | ||
154 | |||
155 | function computeWinningPods (urls, pods_score) { | ||
156 | // Build the list of pods to add | ||
157 | // Only add a pod if it exists in more than a half base pods | ||
158 | var pods_list = [] | ||
159 | var base_score = urls.length / 2 | ||
160 | Object.keys(pods_score).forEach(function (pod) { | ||
161 | if (pods_score[pod] > base_score) pods_list.push({ url: pod }) | ||
162 | }) | ||
163 | |||
164 | return pods_list | ||
165 | } | ||
166 | |||
167 | function makeRequestsToWinningPods (cert, pods_list) { | ||
168 | // Stop pool requests | ||
169 | poolRequests.deactivate() | ||
170 | // Flush pool requests | ||
171 | poolRequests.forceSend() | ||
172 | |||
173 | // Get the list of our videos to send to our new friends | ||
174 | videos.listOwned(function (err, videos_list) { | ||
175 | if (err) throw err | ||
176 | |||
177 | var data = { | ||
178 | url: http + '://' + host + ':' + port, | ||
179 | publicKey: cert, | ||
180 | videos: videos_list | ||
181 | } | ||
182 | |||
183 | utils.makeMultipleRetryRequest( | ||
184 | { method: 'POST', path: '/api/' + constants.API_VERSION + '/pods/', data: data }, | ||
185 | |||
186 | pods_list, | ||
187 | |||
188 | function eachRequest (err, response, body, url, pod, callback_each_request) { | ||
189 | // We add the pod if it responded correctly with its public certificate | ||
190 | if (!err && response.statusCode === 200) { | ||
191 | pods.add({ url: pod.url, publicKey: body.cert, score: constants.FRIEND_BASE_SCORE }, function (err) { | ||
192 | if (err) logger.error('Error with adding %s pod.', pod.url, { error: err }) | ||
193 | |||
194 | videos.addRemotes(body.videos, function (err) { | ||
195 | if (err) logger.error('Error with adding videos of pod.', pod.url, { error: err }) | ||
196 | |||
197 | logger.debug('Adding remote videos from %s.', pod.url, { videos: body.videos }) | ||
198 | return callback_each_request() | ||
199 | }) | ||
200 | }) | ||
201 | } else { | ||
202 | logger.error('Error with adding %s pod.', pod.url, { error: err || new Error('Status not 200') }) | ||
203 | return callback_each_request() | ||
204 | } | ||
205 | }, | ||
206 | |||
207 | function endRequests (err) { | ||
208 | // Now we made new friends, we can re activate the pool of requests | ||
209 | poolRequests.activate() | ||
210 | |||
211 | if (err) { | ||
212 | logger.error('There was some errors when we wanted to make friends.', { error: err }) | ||
213 | return callback(err) | ||
214 | } | ||
215 | |||
216 | logger.debug('makeRequestsToWinningPods finished.') | ||
217 | return callback(null) | ||
218 | } | ||
219 | ) | ||
220 | }) | ||
221 | } | ||
222 | } | ||
223 | |||
224 | pods.quitFriends = function (callback) { | ||
225 | // Stop pool requests | ||
226 | poolRequests.deactivate() | ||
227 | // Flush pool requests | ||
228 | poolRequests.forceSend() | ||
229 | |||
230 | PodsDB.find(function (err, pods) { | ||
231 | if (err) return callback(err) | ||
232 | |||
233 | var request = { | ||
234 | method: 'POST', | ||
235 | path: '/api/' + constants.API_VERSION + '/pods/remove', | ||
236 | sign: true, | ||
237 | encrypt: true, | ||
238 | data: { | ||
239 | url: 'me' // Fake data | ||
240 | } | ||
241 | } | ||
242 | |||
243 | // Announce we quit them | ||
244 | utils.makeMultipleRetryRequest(request, pods, function () { | ||
245 | PodsDB.remove(function (err) { | ||
246 | poolRequests.activate() | ||
247 | |||
248 | if (err) return callback(err) | ||
249 | |||
250 | logger.info('Broke friends, so sad :(') | ||
251 | |||
252 | var videos = require('./videos') | ||
253 | videos.removeAllRemotes(function (err) { | ||
254 | if (err) return callback(err) | ||
255 | |||
256 | logger.info('Removed all remote videos.') | ||
257 | callback(null) | ||
258 | }) | ||
259 | }) | ||
260 | }) | ||
261 | }) | ||
262 | } | ||
263 | |||
264 | pods.hasFriends = function (callback) { | ||
265 | PodsDB.count(function (err, count) { | ||
266 | if (err) return callback(err) | ||
267 | |||
268 | var has_friends = (count !== 0) | ||
269 | callback(null, has_friends) | ||
270 | }) | ||
271 | } | ||
272 | |||
273 | module.exports = pods | ||
274 | })() | ||