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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 series = require('async/series') | |
7 | const request = require('request') | |
8 | const waterfall = require('async/waterfall') | |
9 | ||
10 | const constants = require('../initializers/constants') | |
11 | const db = require('../initializers/database') | |
12 | const logger = require('../helpers/logger') | |
13 | const peertubeCrypto = require('../helpers/peertube-crypto') | |
14 | const requests = require('../helpers/requests') | |
15 | const utils = require('../helpers/utils') | |
16 | const RequestScheduler = require('./request-scheduler') | |
17 | const RequestVideoQaduScheduler = require('./request-video-qadu-scheduler') | |
18 | const RequestVideoEventScheduler = require('./request-video-event-scheduler') | |
19 | ||
20 | const ENDPOINT_ACTIONS = constants.REQUEST_ENDPOINT_ACTIONS[constants.REQUEST_ENDPOINTS.VIDEOS] | |
21 | ||
22 | const requestScheduler = new RequestScheduler() | |
23 | const requestVideoQaduScheduler = new RequestVideoQaduScheduler() | |
24 | const requestVideoEventScheduler = new RequestVideoEventScheduler() | |
25 | ||
26 | const friends = { | |
27 | activate, | |
28 | addVideoToFriends, | |
29 | updateVideoToFriends, | |
30 | reportAbuseVideoToFriend, | |
31 | quickAndDirtyUpdateVideoToFriends, | |
32 | quickAndDirtyUpdatesVideoToFriends, | |
33 | addEventToRemoteVideo, | |
34 | addEventsToRemoteVideo, | |
35 | hasFriends, | |
36 | makeFriends, | |
37 | quitFriends, | |
38 | removeVideoToFriends, | |
39 | sendOwnedVideosToPod, | |
40 | getRequestScheduler, | |
41 | getRequestVideoQaduScheduler, | |
42 | getRequestVideoEventScheduler | |
43 | } | |
44 | ||
45 | function activate () { | |
46 | requestScheduler.activate() | |
47 | requestVideoQaduScheduler.activate() | |
48 | requestVideoEventScheduler.activate() | |
49 | } | |
50 | ||
51 | function addVideoToFriends (videoData, transaction, callback) { | |
52 | const options = { | |
53 | type: ENDPOINT_ACTIONS.ADD, | |
54 | endpoint: constants.REQUEST_ENDPOINTS.VIDEOS, | |
55 | data: videoData, | |
56 | transaction | |
57 | } | |
58 | createRequest(options, callback) | |
59 | } | |
60 | ||
61 | function updateVideoToFriends (videoData, transaction, callback) { | |
62 | const options = { | |
63 | type: ENDPOINT_ACTIONS.UPDATE, | |
64 | endpoint: constants.REQUEST_ENDPOINTS.VIDEOS, | |
65 | data: videoData, | |
66 | transaction | |
67 | } | |
68 | createRequest(options, callback) | |
69 | } | |
70 | ||
71 | function removeVideoToFriends (videoParams) { | |
72 | const options = { | |
73 | type: ENDPOINT_ACTIONS.REMOVE, | |
74 | endpoint: constants.REQUEST_ENDPOINTS.VIDEOS, | |
75 | data: videoParams | |
76 | } | |
77 | createRequest(options) | |
78 | } | |
79 | ||
80 | function reportAbuseVideoToFriend (reportData, video) { | |
81 | const options = { | |
82 | type: ENDPOINT_ACTIONS.REPORT_ABUSE, | |
83 | endpoint: constants.REQUEST_ENDPOINTS.VIDEOS, | |
84 | data: reportData, | |
85 | toIds: [ video.Author.podId ] | |
86 | } | |
87 | createRequest(options) | |
88 | } | |
89 | ||
90 | function quickAndDirtyUpdateVideoToFriends (qaduParams, transaction, callback) { | |
91 | const options = { | |
92 | videoId: qaduParams.videoId, | |
93 | type: qaduParams.type, | |
94 | transaction | |
95 | } | |
96 | return createVideoQaduRequest(options, callback) | |
97 | } | |
98 | ||
99 | function quickAndDirtyUpdatesVideoToFriends (qadusParams, transaction, finalCallback) { | |
100 | const tasks = [] | |
101 | ||
102 | qadusParams.forEach(function (qaduParams) { | |
103 | const fun = function (callback) { | |
104 | quickAndDirtyUpdateVideoToFriends(qaduParams, transaction, callback) | |
105 | } | |
106 | ||
107 | tasks.push(fun) | |
108 | }) | |
109 | ||
110 | series(tasks, finalCallback) | |
111 | } | |
112 | ||
113 | function addEventToRemoteVideo (eventParams, transaction, callback) { | |
114 | const options = { | |
115 | videoId: eventParams.videoId, | |
116 | type: eventParams.type, | |
117 | transaction | |
118 | } | |
119 | createVideoEventRequest(options, callback) | |
120 | } | |
121 | ||
122 | function addEventsToRemoteVideo (eventsParams, transaction, finalCallback) { | |
123 | const tasks = [] | |
124 | ||
125 | eventsParams.forEach(function (eventParams) { | |
126 | const fun = function (callback) { | |
127 | addEventToRemoteVideo(eventParams, transaction, callback) | |
128 | } | |
129 | ||
130 | tasks.push(fun) | |
131 | }) | |
132 | ||
133 | series(tasks, finalCallback) | |
134 | } | |
135 | ||
136 | function hasFriends (callback) { | |
137 | db.Pod.countAll(function (err, count) { | |
138 | if (err) return callback(err) | |
139 | ||
140 | const hasFriends = (count !== 0) | |
141 | callback(null, hasFriends) | |
142 | }) | |
143 | } | |
144 | ||
145 | function makeFriends (hosts, callback) { | |
146 | const podsScore = {} | |
147 | ||
148 | logger.info('Make friends!') | |
149 | peertubeCrypto.getMyPublicCert(function (err, cert) { | |
150 | if (err) { | |
151 | logger.error('Cannot read public cert.') | |
152 | return callback(err) | |
153 | } | |
154 | ||
155 | eachSeries(hosts, function (host, callbackEach) { | |
156 | computeForeignPodsList(host, podsScore, callbackEach) | |
157 | }, function (err) { | |
158 | if (err) return callback(err) | |
159 | ||
160 | logger.debug('Pods scores computed.', { podsScore: podsScore }) | |
161 | const podsList = computeWinningPods(hosts, podsScore) | |
162 | logger.debug('Pods that we keep.', { podsToKeep: podsList }) | |
163 | ||
164 | makeRequestsToWinningPods(cert, podsList, callback) | |
165 | }) | |
166 | }) | |
167 | } | |
168 | ||
169 | function quitFriends (callback) { | |
170 | // Stop pool requests | |
171 | requestScheduler.deactivate() | |
172 | ||
173 | waterfall([ | |
174 | function flushRequests (callbackAsync) { | |
175 | requestScheduler.flush(err => callbackAsync(err)) | |
176 | }, | |
177 | ||
178 | function flushVideoQaduRequests (callbackAsync) { | |
179 | requestVideoQaduScheduler.flush(err => callbackAsync(err)) | |
180 | }, | |
181 | ||
182 | function getPodsList (callbackAsync) { | |
183 | return db.Pod.list(callbackAsync) | |
184 | }, | |
185 | ||
186 | function announceIQuitMyFriends (pods, callbackAsync) { | |
187 | const requestParams = { | |
188 | method: 'POST', | |
189 | path: '/api/' + constants.API_VERSION + '/remote/pods/remove', | |
190 | sign: true | |
191 | } | |
192 | ||
193 | // Announce we quit them | |
194 | // We don't care if the request fails | |
195 | // The other pod will exclude us automatically after a while | |
196 | eachLimit(pods, constants.REQUESTS_IN_PARALLEL, function (pod, callbackEach) { | |
197 | requestParams.toPod = pod | |
198 | requests.makeSecureRequest(requestParams, callbackEach) | |
199 | }, function (err) { | |
200 | if (err) { | |
201 | logger.error('Some errors while quitting friends.', { err: err }) | |
202 | // Don't stop the process | |
203 | } | |
204 | ||
205 | return callbackAsync(null, pods) | |
206 | }) | |
207 | }, | |
208 | ||
209 | function removePodsFromDB (pods, callbackAsync) { | |
210 | each(pods, function (pod, callbackEach) { | |
211 | pod.destroy().asCallback(callbackEach) | |
212 | }, callbackAsync) | |
213 | } | |
214 | ], function (err) { | |
215 | // Don't forget to re activate the scheduler, even if there was an error | |
216 | requestScheduler.activate() | |
217 | ||
218 | if (err) return callback(err) | |
219 | ||
220 | logger.info('Removed all remote videos.') | |
221 | return callback(null) | |
222 | }) | |
223 | } | |
224 | ||
225 | function sendOwnedVideosToPod (podId) { | |
226 | db.Video.listOwnedAndPopulateAuthorAndTags(function (err, videosList) { | |
227 | if (err) { | |
228 | logger.error('Cannot get the list of videos we own.') | |
229 | return | |
230 | } | |
231 | ||
232 | videosList.forEach(function (video) { | |
233 | video.toAddRemoteJSON(function (err, remoteVideo) { | |
234 | if (err) { | |
235 | logger.error('Cannot convert video to remote.', { error: err }) | |
236 | // Don't break the process | |
237 | return | |
238 | } | |
239 | ||
240 | const options = { | |
241 | type: 'add', | |
242 | endpoint: constants.REQUEST_ENDPOINTS.VIDEOS, | |
243 | data: remoteVideo, | |
244 | toIds: [ podId ] | |
245 | } | |
246 | createRequest(options) | |
247 | }) | |
248 | }) | |
249 | }) | |
250 | } | |
251 | ||
252 | function getRequestScheduler () { | |
253 | return requestScheduler | |
254 | } | |
255 | ||
256 | function getRequestVideoQaduScheduler () { | |
257 | return requestVideoQaduScheduler | |
258 | } | |
259 | ||
260 | function getRequestVideoEventScheduler () { | |
261 | return requestVideoEventScheduler | |
262 | } | |
263 | ||
264 | // --------------------------------------------------------------------------- | |
265 | ||
266 | module.exports = friends | |
267 | ||
268 | // --------------------------------------------------------------------------- | |
269 | ||
270 | function computeForeignPodsList (host, podsScore, callback) { | |
271 | getForeignPodsList(host, function (err, res) { | |
272 | if (err) return callback(err) | |
273 | ||
274 | const foreignPodsList = res.data | |
275 | ||
276 | // Let's give 1 point to the pod we ask the friends list | |
277 | foreignPodsList.push({ host }) | |
278 | ||
279 | foreignPodsList.forEach(function (foreignPod) { | |
280 | const foreignPodHost = foreignPod.host | |
281 | ||
282 | if (podsScore[foreignPodHost]) podsScore[foreignPodHost]++ | |
283 | else podsScore[foreignPodHost] = 1 | |
284 | }) | |
285 | ||
286 | return callback() | |
287 | }) | |
288 | } | |
289 | ||
290 | function computeWinningPods (hosts, podsScore) { | |
291 | // Build the list of pods to add | |
292 | // Only add a pod if it exists in more than a half base pods | |
293 | const podsList = [] | |
294 | const baseScore = hosts.length / 2 | |
295 | ||
296 | Object.keys(podsScore).forEach(function (podHost) { | |
297 | // If the pod is not me and with a good score we add it | |
298 | if (isMe(podHost) === false && podsScore[podHost] > baseScore) { | |
299 | podsList.push({ host: podHost }) | |
300 | } | |
301 | }) | |
302 | ||
303 | return podsList | |
304 | } | |
305 | ||
306 | function getForeignPodsList (host, callback) { | |
307 | const path = '/api/' + constants.API_VERSION + '/pods' | |
308 | ||
309 | request.get(constants.REMOTE_SCHEME.HTTP + '://' + host + path, function (err, response, body) { | |
310 | if (err) return callback(err) | |
311 | ||
312 | try { | |
313 | const json = JSON.parse(body) | |
314 | return callback(null, json) | |
315 | } catch (err) { | |
316 | return callback(err) | |
317 | } | |
318 | }) | |
319 | } | |
320 | ||
321 | function makeRequestsToWinningPods (cert, podsList, callback) { | |
322 | // Stop pool requests | |
323 | requestScheduler.deactivate() | |
324 | // Flush pool requests | |
325 | requestScheduler.forceSend() | |
326 | ||
327 | eachLimit(podsList, constants.REQUESTS_IN_PARALLEL, function (pod, callbackEach) { | |
328 | const params = { | |
329 | url: constants.REMOTE_SCHEME.HTTP + '://' + pod.host + '/api/' + constants.API_VERSION + '/pods/', | |
330 | method: 'POST', | |
331 | json: { | |
332 | host: constants.CONFIG.WEBSERVER.HOST, | |
333 | email: constants.CONFIG.ADMIN.EMAIL, | |
334 | publicKey: cert | |
335 | } | |
336 | } | |
337 | ||
338 | requests.makeRetryRequest(params, function (err, res, body) { | |
339 | if (err) { | |
340 | logger.error('Error with adding %s pod.', pod.host, { error: err }) | |
341 | // Don't break the process | |
342 | return callbackEach() | |
343 | } | |
344 | ||
345 | if (res.statusCode === 200) { | |
346 | const podObj = db.Pod.build({ host: pod.host, publicKey: body.cert, email: body.email }) | |
347 | podObj.save().asCallback(function (err, podCreated) { | |
348 | if (err) { | |
349 | logger.error('Cannot add friend %s pod.', pod.host, { error: err }) | |
350 | return callbackEach() | |
351 | } | |
352 | ||
353 | // Add our videos to the request scheduler | |
354 | sendOwnedVideosToPod(podCreated.id) | |
355 | ||
356 | return callbackEach() | |
357 | }) | |
358 | } else { | |
359 | logger.error('Status not 200 for %s pod.', pod.host) | |
360 | return callbackEach() | |
361 | } | |
362 | }) | |
363 | }, function endRequests () { | |
364 | // Final callback, we've ended all the requests | |
365 | // Now we made new friends, we can re activate the pool of requests | |
366 | requestScheduler.activate() | |
367 | ||
368 | logger.debug('makeRequestsToWinningPods finished.') | |
369 | return callback() | |
370 | }) | |
371 | } | |
372 | ||
373 | // Wrapper that populate "toIds" argument with all our friends if it is not specified | |
374 | // { type, endpoint, data, toIds, transaction } | |
375 | function createRequest (options, callback) { | |
376 | if (!callback) callback = function () {} | |
377 | if (options.toIds) return requestScheduler.createRequest(options, callback) | |
378 | ||
379 | // If the "toIds" pods is not specified, we send the request to all our friends | |
380 | db.Pod.listAllIds(options.transaction, function (err, podIds) { | |
381 | if (err) { | |
382 | logger.error('Cannot get pod ids', { error: err }) | |
383 | return | |
384 | } | |
385 | ||
386 | const newOptions = Object.assign(options, { toIds: podIds }) | |
387 | return requestScheduler.createRequest(newOptions, callback) | |
388 | }) | |
389 | } | |
390 | ||
391 | function createVideoQaduRequest (options, callback) { | |
392 | if (!callback) callback = utils.createEmptyCallback() | |
393 | ||
394 | requestVideoQaduScheduler.createRequest(options, callback) | |
395 | } | |
396 | ||
397 | function createVideoEventRequest (options, callback) { | |
398 | if (!callback) callback = utils.createEmptyCallback() | |
399 | ||
400 | requestVideoEventScheduler.createRequest(options, callback) | |
401 | } | |
402 | ||
403 | function isMe (host) { | |
404 | return host === constants.CONFIG.WEBSERVER.HOST | |
405 | } |