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1 | 'use strict' | |
2 | ||
3 | const each = require('async/each') | |
4 | const eachLimit = require('async/eachLimit') | |
5 | const eachSeries = require('async/eachSeries') | |
6 | const request = require('request') | |
7 | const waterfall = require('async/waterfall') | |
8 | ||
9 | const constants = require('../initializers/constants') | |
10 | const db = require('../initializers/database') | |
11 | const logger = require('../helpers/logger') | |
12 | const peertubeCrypto = require('../helpers/peertube-crypto') | |
13 | const requests = require('../helpers/requests') | |
14 | const utils = require('../helpers/utils') | |
15 | const RequestScheduler = require('./request-scheduler') | |
16 | const RequestVideoQaduScheduler = require('./request-video-qadu-scheduler') | |
17 | const RequestVideoEventScheduler = require('./request-video-event-scheduler') | |
18 | ||
19 | const ENDPOINT_ACTIONS = constants.REQUEST_ENDPOINT_ACTIONS[constants.REQUEST_ENDPOINTS.VIDEOS] | |
20 | ||
21 | const requestScheduler = new RequestScheduler() | |
22 | const requestSchedulerVideoQadu = new RequestVideoQaduScheduler() | |
23 | const requestSchedulerVideoEvent = new RequestVideoEventScheduler() | |
24 | ||
25 | const friends = { | |
26 | activate, | |
27 | addVideoToFriends, | |
28 | updateVideoToFriends, | |
29 | reportAbuseVideoToFriend, | |
30 | quickAndDirtyUpdateVideoToFriends, | |
31 | addEventToRemoteVideo, | |
32 | hasFriends, | |
33 | makeFriends, | |
34 | quitFriends, | |
35 | removeVideoToFriends, | |
36 | sendOwnedVideosToPod | |
37 | } | |
38 | ||
39 | function activate () { | |
40 | requestScheduler.activate() | |
41 | requestSchedulerVideoQadu.activate() | |
42 | requestSchedulerVideoEvent.activate() | |
43 | } | |
44 | ||
45 | function addVideoToFriends (videoData, transaction, callback) { | |
46 | const options = { | |
47 | type: ENDPOINT_ACTIONS.ADD, | |
48 | endpoint: constants.REQUEST_ENDPOINTS.VIDEOS, | |
49 | data: videoData, | |
50 | transaction | |
51 | } | |
52 | createRequest(options, callback) | |
53 | } | |
54 | ||
55 | function updateVideoToFriends (videoData, transaction, callback) { | |
56 | const options = { | |
57 | type: ENDPOINT_ACTIONS.UPDATE, | |
58 | endpoint: constants.REQUEST_ENDPOINTS.VIDEOS, | |
59 | data: videoData, | |
60 | transaction | |
61 | } | |
62 | createRequest(options, callback) | |
63 | } | |
64 | ||
65 | function removeVideoToFriends (videoParams) { | |
66 | const options = { | |
67 | type: ENDPOINT_ACTIONS.REMOVE, | |
68 | endpoint: constants.REQUEST_ENDPOINTS.VIDEOS, | |
69 | data: videoParams | |
70 | } | |
71 | createRequest(options) | |
72 | } | |
73 | ||
74 | function reportAbuseVideoToFriend (reportData, video) { | |
75 | const options = { | |
76 | type: ENDPOINT_ACTIONS.REPORT_ABUSE, | |
77 | endpoint: constants.REQUEST_ENDPOINTS.VIDEOS, | |
78 | data: reportData, | |
79 | toIds: [ video.Author.podId ] | |
80 | } | |
81 | createRequest(options) | |
82 | } | |
83 | ||
84 | function quickAndDirtyUpdateVideoToFriends (videoId, type, transaction, callback) { | |
85 | const options = { | |
86 | videoId, | |
87 | type, | |
88 | transaction | |
89 | } | |
90 | return createVideoQaduRequest(options, callback) | |
91 | } | |
92 | ||
93 | function addEventToRemoteVideo (videoId, type, transaction, callback) { | |
94 | const options = { | |
95 | videoId, | |
96 | type, | |
97 | transaction | |
98 | } | |
99 | createVideoEventRequest(options, callback) | |
100 | } | |
101 | ||
102 | function hasFriends (callback) { | |
103 | db.Pod.countAll(function (err, count) { | |
104 | if (err) return callback(err) | |
105 | ||
106 | const hasFriends = (count !== 0) | |
107 | callback(null, hasFriends) | |
108 | }) | |
109 | } | |
110 | ||
111 | function makeFriends (hosts, callback) { | |
112 | const podsScore = {} | |
113 | ||
114 | logger.info('Make friends!') | |
115 | peertubeCrypto.getMyPublicCert(function (err, cert) { | |
116 | if (err) { | |
117 | logger.error('Cannot read public cert.') | |
118 | return callback(err) | |
119 | } | |
120 | ||
121 | eachSeries(hosts, function (host, callbackEach) { | |
122 | computeForeignPodsList(host, podsScore, callbackEach) | |
123 | }, function (err) { | |
124 | if (err) return callback(err) | |
125 | ||
126 | logger.debug('Pods scores computed.', { podsScore: podsScore }) | |
127 | const podsList = computeWinningPods(hosts, podsScore) | |
128 | logger.debug('Pods that we keep.', { podsToKeep: podsList }) | |
129 | ||
130 | makeRequestsToWinningPods(cert, podsList, callback) | |
131 | }) | |
132 | }) | |
133 | } | |
134 | ||
135 | function quitFriends (callback) { | |
136 | // Stop pool requests | |
137 | requestScheduler.deactivate() | |
138 | ||
139 | waterfall([ | |
140 | function flushRequests (callbackAsync) { | |
141 | requestScheduler.flush(err => callbackAsync(err)) | |
142 | }, | |
143 | ||
144 | function flushVideoQaduRequests (callbackAsync) { | |
145 | requestSchedulerVideoQadu.flush(err => callbackAsync(err)) | |
146 | }, | |
147 | ||
148 | function getPodsList (callbackAsync) { | |
149 | return db.Pod.list(callbackAsync) | |
150 | }, | |
151 | ||
152 | function announceIQuitMyFriends (pods, callbackAsync) { | |
153 | const requestParams = { | |
154 | method: 'POST', | |
155 | path: '/api/' + constants.API_VERSION + '/pods/remove', | |
156 | sign: true | |
157 | } | |
158 | ||
159 | // Announce we quit them | |
160 | // We don't care if the request fails | |
161 | // The other pod will exclude us automatically after a while | |
162 | eachLimit(pods, constants.REQUESTS_IN_PARALLEL, function (pod, callbackEach) { | |
163 | requestParams.toPod = pod | |
164 | requests.makeSecureRequest(requestParams, callbackEach) | |
165 | }, function (err) { | |
166 | if (err) { | |
167 | logger.error('Some errors while quitting friends.', { err: err }) | |
168 | // Don't stop the process | |
169 | } | |
170 | ||
171 | return callbackAsync(null, pods) | |
172 | }) | |
173 | }, | |
174 | ||
175 | function removePodsFromDB (pods, callbackAsync) { | |
176 | each(pods, function (pod, callbackEach) { | |
177 | pod.destroy().asCallback(callbackEach) | |
178 | }, callbackAsync) | |
179 | } | |
180 | ], function (err) { | |
181 | // Don't forget to re activate the scheduler, even if there was an error | |
182 | requestScheduler.activate() | |
183 | ||
184 | if (err) return callback(err) | |
185 | ||
186 | logger.info('Removed all remote videos.') | |
187 | return callback(null) | |
188 | }) | |
189 | } | |
190 | ||
191 | function sendOwnedVideosToPod (podId) { | |
192 | db.Video.listOwnedAndPopulateAuthorAndTags(function (err, videosList) { | |
193 | if (err) { | |
194 | logger.error('Cannot get the list of videos we own.') | |
195 | return | |
196 | } | |
197 | ||
198 | videosList.forEach(function (video) { | |
199 | video.toAddRemoteJSON(function (err, remoteVideo) { | |
200 | if (err) { | |
201 | logger.error('Cannot convert video to remote.', { error: err }) | |
202 | // Don't break the process | |
203 | return | |
204 | } | |
205 | ||
206 | const options = { | |
207 | type: 'add', | |
208 | endpoint: constants.REQUEST_ENDPOINTS.VIDEOS, | |
209 | data: remoteVideo, | |
210 | toIds: [ podId ] | |
211 | } | |
212 | createRequest(options) | |
213 | }) | |
214 | }) | |
215 | }) | |
216 | } | |
217 | ||
218 | // --------------------------------------------------------------------------- | |
219 | ||
220 | module.exports = friends | |
221 | ||
222 | // --------------------------------------------------------------------------- | |
223 | ||
224 | function computeForeignPodsList (host, podsScore, callback) { | |
225 | getForeignPodsList(host, function (err, res) { | |
226 | if (err) return callback(err) | |
227 | ||
228 | const foreignPodsList = res.data | |
229 | ||
230 | // Let's give 1 point to the pod we ask the friends list | |
231 | foreignPodsList.push({ host }) | |
232 | ||
233 | foreignPodsList.forEach(function (foreignPod) { | |
234 | const foreignPodHost = foreignPod.host | |
235 | ||
236 | if (podsScore[foreignPodHost]) podsScore[foreignPodHost]++ | |
237 | else podsScore[foreignPodHost] = 1 | |
238 | }) | |
239 | ||
240 | return callback() | |
241 | }) | |
242 | } | |
243 | ||
244 | function computeWinningPods (hosts, podsScore) { | |
245 | // Build the list of pods to add | |
246 | // Only add a pod if it exists in more than a half base pods | |
247 | const podsList = [] | |
248 | const baseScore = hosts.length / 2 | |
249 | ||
250 | Object.keys(podsScore).forEach(function (podHost) { | |
251 | // If the pod is not me and with a good score we add it | |
252 | if (isMe(podHost) === false && podsScore[podHost] > baseScore) { | |
253 | podsList.push({ host: podHost }) | |
254 | } | |
255 | }) | |
256 | ||
257 | return podsList | |
258 | } | |
259 | ||
260 | function getForeignPodsList (host, callback) { | |
261 | const path = '/api/' + constants.API_VERSION + '/pods' | |
262 | ||
263 | request.get(constants.REMOTE_SCHEME.HTTP + '://' + host + path, function (err, response, body) { | |
264 | if (err) return callback(err) | |
265 | ||
266 | try { | |
267 | const json = JSON.parse(body) | |
268 | return callback(null, json) | |
269 | } catch (err) { | |
270 | return callback(err) | |
271 | } | |
272 | }) | |
273 | } | |
274 | ||
275 | function makeRequestsToWinningPods (cert, podsList, callback) { | |
276 | // Stop pool requests | |
277 | requestScheduler.deactivate() | |
278 | // Flush pool requests | |
279 | requestScheduler.forceSend() | |
280 | ||
281 | eachLimit(podsList, constants.REQUESTS_IN_PARALLEL, function (pod, callbackEach) { | |
282 | const params = { | |
283 | url: constants.REMOTE_SCHEME.HTTP + '://' + pod.host + '/api/' + constants.API_VERSION + '/pods/', | |
284 | method: 'POST', | |
285 | json: { | |
286 | host: constants.CONFIG.WEBSERVER.HOST, | |
287 | email: constants.CONFIG.ADMIN.EMAIL, | |
288 | publicKey: cert | |
289 | } | |
290 | } | |
291 | ||
292 | requests.makeRetryRequest(params, function (err, res, body) { | |
293 | if (err) { | |
294 | logger.error('Error with adding %s pod.', pod.host, { error: err }) | |
295 | // Don't break the process | |
296 | return callbackEach() | |
297 | } | |
298 | ||
299 | if (res.statusCode === 200) { | |
300 | const podObj = db.Pod.build({ host: pod.host, publicKey: body.cert, email: body.email }) | |
301 | podObj.save().asCallback(function (err, podCreated) { | |
302 | if (err) { | |
303 | logger.error('Cannot add friend %s pod.', pod.host, { error: err }) | |
304 | return callbackEach() | |
305 | } | |
306 | ||
307 | // Add our videos to the request scheduler | |
308 | sendOwnedVideosToPod(podCreated.id) | |
309 | ||
310 | return callbackEach() | |
311 | }) | |
312 | } else { | |
313 | logger.error('Status not 200 for %s pod.', pod.host) | |
314 | return callbackEach() | |
315 | } | |
316 | }) | |
317 | }, function endRequests () { | |
318 | // Final callback, we've ended all the requests | |
319 | // Now we made new friends, we can re activate the pool of requests | |
320 | requestScheduler.activate() | |
321 | ||
322 | logger.debug('makeRequestsToWinningPods finished.') | |
323 | return callback() | |
324 | }) | |
325 | } | |
326 | ||
327 | // Wrapper that populate "toIds" argument with all our friends if it is not specified | |
328 | // { type, endpoint, data, toIds, transaction } | |
329 | function createRequest (options, callback) { | |
330 | if (!callback) callback = function () {} | |
331 | if (options.toIds) return requestScheduler.createRequest(options, callback) | |
332 | ||
333 | // If the "toIds" pods is not specified, we send the request to all our friends | |
334 | db.Pod.listAllIds(options.transaction, function (err, podIds) { | |
335 | if (err) { | |
336 | logger.error('Cannot get pod ids', { error: err }) | |
337 | return | |
338 | } | |
339 | ||
340 | const newOptions = Object.assign(options, { toIds: podIds }) | |
341 | return requestScheduler.createRequest(newOptions, callback) | |
342 | }) | |
343 | } | |
344 | ||
345 | function createVideoQaduRequest (options, callback) { | |
346 | if (!callback) callback = utils.createEmptyCallback() | |
347 | ||
348 | requestSchedulerVideoQadu.createRequest(options, callback) | |
349 | } | |
350 | ||
351 | function createVideoEventRequest (options, callback) { | |
352 | if (!callback) callback = utils.createEmptyCallback() | |
353 | ||
354 | requestSchedulerVideoEvent.createRequest(options, callback) | |
355 | } | |
356 | ||
357 | function isMe (host) { | |
358 | return host === constants.CONFIG.WEBSERVER.HOST | |
359 | } |