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9f10b292 C |
1 | 'use strict' |
2 | ||
1a42c9e2 C |
3 | const each = require('async/each') |
4 | const eachLimit = require('async/eachLimit') | |
5 | const eachSeries = require('async/eachSeries') | |
f0f5567b C |
6 | const fs = require('fs') |
7 | const request = require('request') | |
1a42c9e2 | 8 | const waterfall = require('async/waterfall') |
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9 | |
10 | const constants = require('../initializers/constants') | |
feb4bdfd | 11 | const db = require('../initializers/database') |
f0f5567b | 12 | const logger = require('../helpers/logger') |
f0f5567b | 13 | const requests = require('../helpers/requests') |
f0f5567b | 14 | |
a3ee6fa2 | 15 | const friends = { |
c4403b29 | 16 | addVideoToFriends, |
7b1f49de | 17 | updateVideoToFriends, |
c4403b29 C |
18 | hasFriends, |
19 | getMyCertificate, | |
20 | makeFriends, | |
21 | quitFriends, | |
22 | removeVideoToFriends, | |
23 | sendOwnedVideosToPod | |
9f10b292 C |
24 | } |
25 | ||
26 | function addVideoToFriends (video) { | |
4b08096b | 27 | createRequest('add', constants.REQUEST_ENDPOINTS.VIDEOS, video) |
9f10b292 C |
28 | } |
29 | ||
7b1f49de C |
30 | function updateVideoToFriends (video) { |
31 | createRequest('update', constants.REQUEST_ENDPOINTS.VIDEOS, video) | |
32 | } | |
33 | ||
9f10b292 | 34 | function hasFriends (callback) { |
feb4bdfd | 35 | db.Pod.countAll(function (err, count) { |
9f10b292 C |
36 | if (err) return callback(err) |
37 | ||
bc503c2a C |
38 | const hasFriends = (count !== 0) |
39 | callback(null, hasFriends) | |
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40 | }) |
41 | } | |
42 | ||
cbe2f7c3 | 43 | function getMyCertificate (callback) { |
e861452f | 44 | fs.readFile(constants.CONFIG.STORAGE.CERT_DIR + 'peertube.pub', 'utf8', callback) |
cbe2f7c3 C |
45 | } |
46 | ||
49abbbbe | 47 | function makeFriends (hosts, callback) { |
bc503c2a | 48 | const podsScore = {} |
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49 | |
50 | logger.info('Make friends!') | |
cbe2f7c3 | 51 | getMyCertificate(function (err, cert) { |
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52 | if (err) { |
53 | logger.error('Cannot read public cert.') | |
54 | return callback(err) | |
55 | } | |
c173e565 | 56 | |
49abbbbe C |
57 | eachSeries(hosts, function (host, callbackEach) { |
58 | computeForeignPodsList(host, podsScore, callbackEach) | |
89d1d8ba | 59 | }, function (err) { |
c173e565 C |
60 | if (err) return callback(err) |
61 | ||
bc503c2a | 62 | logger.debug('Pods scores computed.', { podsScore: podsScore }) |
49abbbbe | 63 | const podsList = computeWinningPods(hosts, podsScore) |
bc503c2a | 64 | logger.debug('Pods that we keep.', { podsToKeep: podsList }) |
9f10b292 | 65 | |
bc503c2a | 66 | makeRequestsToWinningPods(cert, podsList, callback) |
c173e565 | 67 | }) |
9f10b292 | 68 | }) |
9f10b292 C |
69 | } |
70 | ||
71 | function quitFriends (callback) { | |
72 | // Stop pool requests | |
feb4bdfd | 73 | db.Request.deactivate() |
9f10b292 | 74 | |
1a42c9e2 | 75 | waterfall([ |
7920c273 C |
76 | function flushRequests (callbackAsync) { |
77 | db.Request.flush(callbackAsync) | |
78 | }, | |
79 | ||
e7ea2817 | 80 | function getPodsList (callbackAsync) { |
feb4bdfd | 81 | return db.Pod.list(callbackAsync) |
e7ea2817 C |
82 | }, |
83 | ||
84 | function announceIQuitMyFriends (pods, callbackAsync) { | |
528a9efa | 85 | const requestParams = { |
e7ea2817 C |
86 | method: 'POST', |
87 | path: '/api/' + constants.API_VERSION + '/pods/remove', | |
528a9efa | 88 | sign: true |
c173e565 C |
89 | } |
90 | ||
e7ea2817 | 91 | // Announce we quit them |
528a9efa C |
92 | // We don't care if the request fails |
93 | // The other pod will exclude us automatically after a while | |
1a42c9e2 | 94 | eachLimit(pods, constants.REQUESTS_IN_PARALLEL, function (pod, callbackEach) { |
528a9efa C |
95 | requestParams.toPod = pod |
96 | requests.makeSecureRequest(requestParams, callbackEach) | |
97 | }, function (err) { | |
98 | if (err) { | |
99 | logger.error('Some errors while quitting friends.', { err: err }) | |
100 | // Don't stop the process | |
101 | } | |
102 | ||
80a6c9e7 | 103 | return callbackAsync(null, pods) |
e7ea2817 C |
104 | }) |
105 | }, | |
c173e565 | 106 | |
80a6c9e7 C |
107 | function removePodsFromDB (pods, callbackAsync) { |
108 | each(pods, function (pod, callbackEach) { | |
feb4bdfd | 109 | pod.destroy().asCallback(callbackEach) |
aaf61f38 | 110 | }, callbackAsync) |
e7ea2817 C |
111 | } |
112 | ], function (err) { | |
113 | // Don't forget to re activate the scheduler, even if there was an error | |
feb4bdfd | 114 | db.Request.activate() |
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115 | |
116 | if (err) return callback(err) | |
117 | ||
118 | logger.info('Removed all remote videos.') | |
119 | return callback(null) | |
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120 | }) |
121 | } | |
c173e565 | 122 | |
00057e85 | 123 | function removeVideoToFriends (videoParams) { |
4b08096b | 124 | createRequest('remove', constants.REQUEST_ENDPOINTS.VIDEOS, videoParams) |
528a9efa C |
125 | } |
126 | ||
127 | function sendOwnedVideosToPod (podId) { | |
7920c273 | 128 | db.Video.listOwnedAndPopulateAuthorAndTags(function (err, videosList) { |
528a9efa C |
129 | if (err) { |
130 | logger.error('Cannot get the list of videos we own.') | |
131 | return | |
132 | } | |
133 | ||
134 | videosList.forEach(function (video) { | |
7b1f49de | 135 | video.toAddRemoteJSON(function (err, remoteVideo) { |
528a9efa C |
136 | if (err) { |
137 | logger.error('Cannot convert video to remote.', { error: err }) | |
138 | // Don't break the process | |
139 | return | |
140 | } | |
141 | ||
4b08096b | 142 | createRequest('add', constants.REQUEST_ENDPOINTS.VIDEOS, remoteVideo, [ podId ]) |
528a9efa C |
143 | }) |
144 | }) | |
145 | }) | |
9f10b292 | 146 | } |
c173e565 | 147 | |
9f10b292 | 148 | // --------------------------------------------------------------------------- |
c173e565 | 149 | |
a3ee6fa2 | 150 | module.exports = friends |
c173e565 | 151 | |
9f10b292 | 152 | // --------------------------------------------------------------------------- |
c173e565 | 153 | |
49abbbbe C |
154 | function computeForeignPodsList (host, podsScore, callback) { |
155 | getForeignPodsList(host, function (err, foreignPodsList) { | |
89d1d8ba | 156 | if (err) return callback(err) |
528a9efa C |
157 | |
158 | if (!foreignPodsList) foreignPodsList = [] | |
159 | ||
160 | // Let's give 1 point to the pod we ask the friends list | |
49abbbbe | 161 | foreignPodsList.push({ host }) |
89d1d8ba | 162 | |
bc503c2a | 163 | foreignPodsList.forEach(function (foreignPod) { |
49abbbbe | 164 | const foreignPodHost = foreignPod.host |
89d1d8ba | 165 | |
49abbbbe C |
166 | if (podsScore[foreignPodHost]) podsScore[foreignPodHost]++ |
167 | else podsScore[foreignPodHost] = 1 | |
89d1d8ba | 168 | }) |
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169 | |
170 | callback() | |
89d1d8ba C |
171 | }) |
172 | } | |
173 | ||
49abbbbe | 174 | function computeWinningPods (hosts, podsScore) { |
89d1d8ba C |
175 | // Build the list of pods to add |
176 | // Only add a pod if it exists in more than a half base pods | |
bc503c2a | 177 | const podsList = [] |
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178 | const baseScore = hosts.length / 2 |
179 | Object.keys(podsScore).forEach(function (podHost) { | |
2c49ca42 | 180 | // If the pod is not me and with a good score we add it |
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181 | if (isMe(podHost) === false && podsScore[podHost] > baseScore) { |
182 | podsList.push({ host: podHost }) | |
2c49ca42 | 183 | } |
89d1d8ba | 184 | }) |
e7ea2817 | 185 | |
bc503c2a | 186 | return podsList |
89d1d8ba C |
187 | } |
188 | ||
49abbbbe | 189 | function getForeignPodsList (host, callback) { |
f0f5567b | 190 | const path = '/api/' + constants.API_VERSION + '/pods' |
c173e565 | 191 | |
49abbbbe | 192 | request.get(constants.REMOTE_SCHEME.HTTP + '://' + host + path, function (err, response, body) { |
9f10b292 | 193 | if (err) return callback(err) |
8425cb89 | 194 | |
39f87cb2 C |
195 | try { |
196 | const json = JSON.parse(body) | |
197 | return callback(null, json) | |
198 | } catch (err) { | |
199 | return callback(err) | |
200 | } | |
9f10b292 C |
201 | }) |
202 | } | |
89d1d8ba | 203 | |
bc503c2a | 204 | function makeRequestsToWinningPods (cert, podsList, callback) { |
89d1d8ba | 205 | // Stop pool requests |
feb4bdfd | 206 | db.Request.deactivate() |
89d1d8ba | 207 | // Flush pool requests |
feb4bdfd | 208 | db.Request.forceSend() |
89d1d8ba | 209 | |
1a42c9e2 | 210 | eachLimit(podsList, constants.REQUESTS_IN_PARALLEL, function (pod, callbackEach) { |
528a9efa | 211 | const params = { |
49abbbbe | 212 | url: constants.REMOTE_SCHEME.HTTP + '://' + pod.host + '/api/' + constants.API_VERSION + '/pods/', |
528a9efa C |
213 | method: 'POST', |
214 | json: { | |
49abbbbe | 215 | host: constants.CONFIG.WEBSERVER.HOST, |
528a9efa C |
216 | publicKey: cert |
217 | } | |
89d1d8ba C |
218 | } |
219 | ||
528a9efa C |
220 | requests.makeRetryRequest(params, function (err, res, body) { |
221 | if (err) { | |
49abbbbe | 222 | logger.error('Error with adding %s pod.', pod.host, { error: err }) |
528a9efa C |
223 | // Don't break the process |
224 | return callbackEach() | |
225 | } | |
89d1d8ba | 226 | |
528a9efa | 227 | if (res.statusCode === 200) { |
feb4bdfd C |
228 | const podObj = db.Pod.build({ host: pod.host, publicKey: body.cert }) |
229 | podObj.save().asCallback(function (err, podCreated) { | |
a3ee6fa2 | 230 | if (err) { |
49abbbbe | 231 | logger.error('Cannot add friend %s pod.', pod.host, { error: err }) |
a3ee6fa2 C |
232 | return callbackEach() |
233 | } | |
89d1d8ba | 234 | |
528a9efa | 235 | // Add our videos to the request scheduler |
7920c273 | 236 | sendOwnedVideosToPod(podCreated.id) |
89d1d8ba | 237 | |
528a9efa C |
238 | return callbackEach() |
239 | }) | |
240 | } else { | |
49abbbbe | 241 | logger.error('Status not 200 for %s pod.', pod.host) |
528a9efa | 242 | return callbackEach() |
89d1d8ba | 243 | } |
528a9efa C |
244 | }) |
245 | }, function endRequests () { | |
246 | // Final callback, we've ended all the requests | |
247 | // Now we made new friends, we can re activate the pool of requests | |
feb4bdfd | 248 | db.Request.activate() |
528a9efa C |
249 | |
250 | logger.debug('makeRequestsToWinningPods finished.') | |
251 | return callback() | |
89d1d8ba C |
252 | }) |
253 | } | |
00057e85 | 254 | |
feb4bdfd | 255 | // Wrapper that populate "to" argument with all our friends if it is not specified |
4b08096b | 256 | function createRequest (type, endpoint, data, to) { |
feb4bdfd C |
257 | if (to) return _createRequest(type, endpoint, data, to) |
258 | ||
259 | // If the "to" pods is not specified, we send the request to all our friends | |
260 | db.Pod.listAllIds(function (err, podIds) { | |
261 | if (err) { | |
262 | logger.error('Cannot get pod ids', { error: err }) | |
263 | return | |
264 | } | |
265 | ||
266 | return _createRequest(type, endpoint, data, podIds) | |
267 | }) | |
268 | } | |
269 | ||
270 | function _createRequest (type, endpoint, data, to) { | |
271 | const pods = [] | |
272 | ||
273 | // If there are no destination pods abort | |
274 | if (to.length === 0) return | |
275 | ||
276 | to.forEach(function (toPod) { | |
277 | pods.push(db.Pod.build({ id: toPod })) | |
278 | }) | |
279 | ||
280 | const createQuery = { | |
4b08096b | 281 | endpoint, |
00057e85 C |
282 | request: { |
283 | type: type, | |
284 | data: data | |
285 | } | |
00057e85 C |
286 | } |
287 | ||
feb4bdfd C |
288 | // We run in transaction to keep coherency between Request and RequestToPod tables |
289 | db.sequelize.transaction(function (t) { | |
290 | const dbRequestOptions = { | |
291 | transaction: t | |
292 | } | |
293 | ||
294 | return db.Request.create(createQuery, dbRequestOptions).then(function (request) { | |
295 | return request.setPods(pods, dbRequestOptions) | |
296 | }) | |
297 | }).asCallback(function (err) { | |
298 | if (err) logger.error('Error in createRequest transaction.', { error: err }) | |
00057e85 C |
299 | }) |
300 | } | |
2c49ca42 | 301 | |
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302 | function isMe (host) { |
303 | return host === constants.CONFIG.WEBSERVER.HOST | |
2c49ca42 | 304 | } |