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1 | 'use strict' |
2 | ||
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3 | const each = require('async/each') |
4 | const eachLimit = require('async/eachLimit') | |
5 | const eachSeries = require('async/eachSeries') | |
f0f5567b | 6 | const fs = require('fs') |
aaf61f38 | 7 | const mongoose = require('mongoose') |
f0f5567b | 8 | const request = require('request') |
1a42c9e2 | 9 | const waterfall = require('async/waterfall') |
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10 | |
11 | const constants = require('../initializers/constants') | |
12 | const logger = require('../helpers/logger') | |
f0f5567b | 13 | const requests = require('../helpers/requests') |
f0f5567b | 14 | |
a3ee6fa2 | 15 | const Pod = mongoose.model('Pod') |
00057e85 | 16 | const Request = mongoose.model('Request') |
aaf61f38 | 17 | const Video = mongoose.model('Video') |
f0f5567b | 18 | |
a3ee6fa2 | 19 | const friends = { |
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20 | addVideoToFriends, |
21 | hasFriends, | |
22 | getMyCertificate, | |
23 | makeFriends, | |
24 | quitFriends, | |
25 | removeVideoToFriends, | |
26 | sendOwnedVideosToPod | |
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27 | } |
28 | ||
29 | function addVideoToFriends (video) { | |
00057e85 | 30 | createRequest('add', video) |
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31 | } |
32 | ||
33 | function hasFriends (callback) { | |
a3ee6fa2 | 34 | Pod.countAll(function (err, count) { |
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35 | if (err) return callback(err) |
36 | ||
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37 | const hasFriends = (count !== 0) |
38 | callback(null, hasFriends) | |
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39 | }) |
40 | } | |
41 | ||
cbe2f7c3 | 42 | function getMyCertificate (callback) { |
e861452f | 43 | fs.readFile(constants.CONFIG.STORAGE.CERT_DIR + 'peertube.pub', 'utf8', callback) |
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44 | } |
45 | ||
1e2564d3 | 46 | function makeFriends (urls, callback) { |
bc503c2a | 47 | const podsScore = {} |
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48 | |
49 | logger.info('Make friends!') | |
cbe2f7c3 | 50 | getMyCertificate(function (err, cert) { |
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51 | if (err) { |
52 | logger.error('Cannot read public cert.') | |
53 | return callback(err) | |
54 | } | |
c173e565 | 55 | |
1a42c9e2 | 56 | eachSeries(urls, function (url, callbackEach) { |
bc503c2a | 57 | computeForeignPodsList(url, podsScore, callbackEach) |
89d1d8ba | 58 | }, function (err) { |
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59 | if (err) return callback(err) |
60 | ||
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61 | logger.debug('Pods scores computed.', { podsScore: podsScore }) |
62 | const podsList = computeWinningPods(urls, podsScore) | |
63 | logger.debug('Pods that we keep.', { podsToKeep: podsList }) | |
9f10b292 | 64 | |
bc503c2a | 65 | makeRequestsToWinningPods(cert, podsList, callback) |
c173e565 | 66 | }) |
9f10b292 | 67 | }) |
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68 | } |
69 | ||
70 | function quitFriends (callback) { | |
71 | // Stop pool requests | |
00057e85 | 72 | Request.deactivate() |
9f10b292 | 73 | // Flush pool requests |
00057e85 | 74 | Request.flush() |
9f10b292 | 75 | |
1a42c9e2 | 76 | waterfall([ |
e7ea2817 | 77 | function getPodsList (callbackAsync) { |
a3ee6fa2 | 78 | return Pod.list(callbackAsync) |
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79 | }, |
80 | ||
81 | function announceIQuitMyFriends (pods, callbackAsync) { | |
528a9efa | 82 | const requestParams = { |
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83 | method: 'POST', |
84 | path: '/api/' + constants.API_VERSION + '/pods/remove', | |
528a9efa | 85 | sign: true |
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86 | } |
87 | ||
e7ea2817 | 88 | // Announce we quit them |
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89 | // We don't care if the request fails |
90 | // The other pod will exclude us automatically after a while | |
1a42c9e2 | 91 | eachLimit(pods, constants.REQUESTS_IN_PARALLEL, function (pod, callbackEach) { |
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92 | requestParams.toPod = pod |
93 | requests.makeSecureRequest(requestParams, callbackEach) | |
94 | }, function (err) { | |
95 | if (err) { | |
96 | logger.error('Some errors while quitting friends.', { err: err }) | |
97 | // Don't stop the process | |
98 | } | |
99 | ||
100 | return callbackAsync() | |
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101 | }) |
102 | }, | |
c173e565 | 103 | |
e7ea2817 | 104 | function removePodsFromDB (callbackAsync) { |
a3ee6fa2 | 105 | Pod.removeAll(function (err) { |
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106 | return callbackAsync(err) |
107 | }) | |
108 | }, | |
c173e565 | 109 | |
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110 | function listRemoteVideos (callbackAsync) { |
111 | logger.info('Broke friends, so sad :(') | |
c173e565 | 112 | |
aaf61f38 | 113 | Video.listRemotes(callbackAsync) |
e7ea2817 | 114 | }, |
c173e565 | 115 | |
e7ea2817 | 116 | function removeTheRemoteVideos (videosList, callbackAsync) { |
1a42c9e2 | 117 | each(videosList, function (video, callbackEach) { |
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118 | video.remove(callbackEach) |
119 | }, callbackAsync) | |
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120 | } |
121 | ], function (err) { | |
122 | // Don't forget to re activate the scheduler, even if there was an error | |
00057e85 | 123 | Request.activate() |
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124 | |
125 | if (err) return callback(err) | |
126 | ||
127 | logger.info('Removed all remote videos.') | |
128 | return callback(null) | |
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129 | }) |
130 | } | |
c173e565 | 131 | |
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132 | function removeVideoToFriends (videoParams) { |
133 | createRequest('remove', videoParams) | |
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134 | } |
135 | ||
136 | function sendOwnedVideosToPod (podId) { | |
aaf61f38 | 137 | Video.listOwned(function (err, videosList) { |
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138 | if (err) { |
139 | logger.error('Cannot get the list of videos we own.') | |
140 | return | |
141 | } | |
142 | ||
143 | videosList.forEach(function (video) { | |
aaf61f38 | 144 | video.toRemoteJSON(function (err, remoteVideo) { |
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145 | if (err) { |
146 | logger.error('Cannot convert video to remote.', { error: err }) | |
147 | // Don't break the process | |
148 | return | |
149 | } | |
150 | ||
00057e85 | 151 | createRequest('add', remoteVideo, [ podId ]) |
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152 | }) |
153 | }) | |
154 | }) | |
9f10b292 | 155 | } |
c173e565 | 156 | |
9f10b292 | 157 | // --------------------------------------------------------------------------- |
c173e565 | 158 | |
a3ee6fa2 | 159 | module.exports = friends |
c173e565 | 160 | |
9f10b292 | 161 | // --------------------------------------------------------------------------- |
c173e565 | 162 | |
bc503c2a | 163 | function computeForeignPodsList (url, podsScore, callback) { |
bc503c2a | 164 | getForeignPodsList(url, function (err, foreignPodsList) { |
89d1d8ba | 165 | if (err) return callback(err) |
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166 | |
167 | if (!foreignPodsList) foreignPodsList = [] | |
168 | ||
169 | // Let's give 1 point to the pod we ask the friends list | |
170 | foreignPodsList.push({ url: url }) | |
89d1d8ba | 171 | |
bc503c2a | 172 | foreignPodsList.forEach(function (foreignPod) { |
528a9efa | 173 | const foreignPodUrl = foreignPod.url |
89d1d8ba | 174 | |
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175 | if (podsScore[foreignPodUrl]) podsScore[foreignPodUrl]++ |
176 | else podsScore[foreignPodUrl] = 1 | |
89d1d8ba | 177 | }) |
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178 | |
179 | callback() | |
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180 | }) |
181 | } | |
182 | ||
bc503c2a | 183 | function computeWinningPods (urls, podsScore) { |
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184 | // Build the list of pods to add |
185 | // Only add a pod if it exists in more than a half base pods | |
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186 | const podsList = [] |
187 | const baseScore = urls.length / 2 | |
d6ea0175 | 188 | Object.keys(podsScore).forEach(function (pod) { |
bc503c2a | 189 | if (podsScore[pod] > baseScore) podsList.push({ url: pod }) |
89d1d8ba | 190 | }) |
e7ea2817 | 191 | |
bc503c2a | 192 | return podsList |
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193 | } |
194 | ||
9f10b292 | 195 | function getForeignPodsList (url, callback) { |
f0f5567b | 196 | const path = '/api/' + constants.API_VERSION + '/pods' |
c173e565 | 197 | |
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198 | request.get(url + path, function (err, response, body) { |
199 | if (err) return callback(err) | |
8425cb89 | 200 | |
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201 | try { |
202 | const json = JSON.parse(body) | |
203 | return callback(null, json) | |
204 | } catch (err) { | |
205 | return callback(err) | |
206 | } | |
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207 | }) |
208 | } | |
89d1d8ba | 209 | |
bc503c2a | 210 | function makeRequestsToWinningPods (cert, podsList, callback) { |
89d1d8ba | 211 | // Stop pool requests |
00057e85 | 212 | Request.deactivate() |
89d1d8ba | 213 | // Flush pool requests |
00057e85 | 214 | Request.forceSend() |
89d1d8ba | 215 | |
1a42c9e2 | 216 | eachLimit(podsList, constants.REQUESTS_IN_PARALLEL, function (pod, callbackEach) { |
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217 | const params = { |
218 | url: pod.url + '/api/' + constants.API_VERSION + '/pods/', | |
219 | method: 'POST', | |
220 | json: { | |
e861452f | 221 | url: constants.CONFIG.WEBSERVER.URL, |
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222 | publicKey: cert |
223 | } | |
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224 | } |
225 | ||
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226 | requests.makeRetryRequest(params, function (err, res, body) { |
227 | if (err) { | |
228 | logger.error('Error with adding %s pod.', pod.url, { error: err }) | |
229 | // Don't break the process | |
230 | return callbackEach() | |
231 | } | |
89d1d8ba | 232 | |
528a9efa | 233 | if (res.statusCode === 200) { |
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234 | const podObj = new Pod({ url: pod.url, publicKey: body.cert }) |
235 | podObj.save(function (err, podCreated) { | |
236 | if (err) { | |
237 | logger.error('Cannot add friend %s pod.', pod.url, { error: err }) | |
238 | return callbackEach() | |
239 | } | |
89d1d8ba | 240 | |
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241 | // Add our videos to the request scheduler |
242 | sendOwnedVideosToPod(podCreated._id) | |
89d1d8ba | 243 | |
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244 | return callbackEach() |
245 | }) | |
246 | } else { | |
247 | logger.error('Status not 200 for %s pod.', pod.url) | |
248 | return callbackEach() | |
89d1d8ba | 249 | } |
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250 | }) |
251 | }, function endRequests () { | |
252 | // Final callback, we've ended all the requests | |
253 | // Now we made new friends, we can re activate the pool of requests | |
00057e85 | 254 | Request.activate() |
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255 | |
256 | logger.debug('makeRequestsToWinningPods finished.') | |
257 | return callback() | |
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258 | }) |
259 | } | |
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260 | |
261 | function createRequest (type, data, to) { | |
262 | const req = new Request({ | |
263 | request: { | |
264 | type: type, | |
265 | data: data | |
266 | } | |
267 | }) | |
268 | ||
269 | if (to) { | |
270 | req.to = to | |
271 | } | |
272 | ||
273 | req.save(function (err) { | |
274 | if (err) logger.error('Cannot save the request.', { error: err }) | |
275 | }) | |
276 | } |