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