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1 | import * as Bluebird from 'bluebird' | |
2 | import { values } from 'lodash' | |
3 | import * as Sequelize from 'sequelize' | |
4 | import { | |
5 | AfterCreate, | |
6 | AfterDestroy, | |
7 | AfterUpdate, | |
8 | AllowNull, | |
9 | BelongsTo, | |
10 | Column, | |
11 | CreatedAt, | |
12 | DataType, | |
13 | Default, | |
14 | ForeignKey, | |
15 | IsInt, | |
16 | Max, | |
17 | Model, | |
18 | Table, | |
19 | UpdatedAt | |
20 | } from 'sequelize-typescript' | |
21 | import { FollowState } from '../../../shared/models/actors' | |
22 | import { AccountFollow } from '../../../shared/models/actors/follow.model' | |
23 | import { logger } from '../../helpers/logger' | |
24 | import { getServerActor } from '../../helpers/utils' | |
25 | import { ACTOR_FOLLOW_SCORE } from '../../initializers' | |
26 | import { FOLLOW_STATES } from '../../initializers/constants' | |
27 | import { ServerModel } from '../server/server' | |
28 | import { getSort } from '../utils' | |
29 | import { ActorModel, unusedActorAttributesForAPI } from './actor' | |
30 | import { VideoChannelModel } from '../video/video-channel' | |
31 | import { IIncludeOptions } from '../../../node_modules/sequelize-typescript/lib/interfaces/IIncludeOptions' | |
32 | import { AccountModel } from '../account/account' | |
33 | ||
34 | @Table({ | |
35 | tableName: 'actorFollow', | |
36 | indexes: [ | |
37 | { | |
38 | fields: [ 'actorId' ] | |
39 | }, | |
40 | { | |
41 | fields: [ 'targetActorId' ] | |
42 | }, | |
43 | { | |
44 | fields: [ 'actorId', 'targetActorId' ], | |
45 | unique: true | |
46 | }, | |
47 | { | |
48 | fields: [ 'score' ] | |
49 | } | |
50 | ] | |
51 | }) | |
52 | export class ActorFollowModel extends Model<ActorFollowModel> { | |
53 | ||
54 | @AllowNull(false) | |
55 | @Column(DataType.ENUM(values(FOLLOW_STATES))) | |
56 | state: FollowState | |
57 | ||
58 | @AllowNull(false) | |
59 | @Default(ACTOR_FOLLOW_SCORE.BASE) | |
60 | @IsInt | |
61 | @Max(ACTOR_FOLLOW_SCORE.MAX) | |
62 | @Column | |
63 | score: number | |
64 | ||
65 | @CreatedAt | |
66 | createdAt: Date | |
67 | ||
68 | @UpdatedAt | |
69 | updatedAt: Date | |
70 | ||
71 | @ForeignKey(() => ActorModel) | |
72 | @Column | |
73 | actorId: number | |
74 | ||
75 | @BelongsTo(() => ActorModel, { | |
76 | foreignKey: { | |
77 | name: 'actorId', | |
78 | allowNull: false | |
79 | }, | |
80 | as: 'ActorFollower', | |
81 | onDelete: 'CASCADE' | |
82 | }) | |
83 | ActorFollower: ActorModel | |
84 | ||
85 | @ForeignKey(() => ActorModel) | |
86 | @Column | |
87 | targetActorId: number | |
88 | ||
89 | @BelongsTo(() => ActorModel, { | |
90 | foreignKey: { | |
91 | name: 'targetActorId', | |
92 | allowNull: false | |
93 | }, | |
94 | as: 'ActorFollowing', | |
95 | onDelete: 'CASCADE' | |
96 | }) | |
97 | ActorFollowing: ActorModel | |
98 | ||
99 | @AfterCreate | |
100 | @AfterUpdate | |
101 | static incrementFollowerAndFollowingCount (instance: ActorFollowModel) { | |
102 | if (instance.state !== 'accepted') return undefined | |
103 | ||
104 | return Promise.all([ | |
105 | ActorModel.incrementFollows(instance.actorId, 'followingCount', 1), | |
106 | ActorModel.incrementFollows(instance.targetActorId, 'followersCount', 1) | |
107 | ]) | |
108 | } | |
109 | ||
110 | @AfterDestroy | |
111 | static decrementFollowerAndFollowingCount (instance: ActorFollowModel) { | |
112 | return Promise.all([ | |
113 | ActorModel.incrementFollows(instance.actorId, 'followingCount',-1), | |
114 | ActorModel.incrementFollows(instance.targetActorId, 'followersCount', -1) | |
115 | ]) | |
116 | } | |
117 | ||
118 | // Remove actor follows with a score of 0 (too many requests where they were unreachable) | |
119 | static async removeBadActorFollows () { | |
120 | const actorFollows = await ActorFollowModel.listBadActorFollows() | |
121 | ||
122 | const actorFollowsRemovePromises = actorFollows.map(actorFollow => actorFollow.destroy()) | |
123 | await Promise.all(actorFollowsRemovePromises) | |
124 | ||
125 | const numberOfActorFollowsRemoved = actorFollows.length | |
126 | ||
127 | if (numberOfActorFollowsRemoved) logger.info('Removed bad %d actor follows.', numberOfActorFollowsRemoved) | |
128 | } | |
129 | ||
130 | static updateActorFollowsScore (goodInboxes: string[], badInboxes: string[], t: Sequelize.Transaction | undefined) { | |
131 | if (goodInboxes.length === 0 && badInboxes.length === 0) return | |
132 | ||
133 | logger.info('Updating %d good actor follows and %d bad actor follows scores.', goodInboxes.length, badInboxes.length) | |
134 | ||
135 | if (goodInboxes.length !== 0) { | |
136 | ActorFollowModel.incrementScores(goodInboxes, ACTOR_FOLLOW_SCORE.BONUS, t) | |
137 | .catch(err => logger.error('Cannot increment scores of good actor follows.', { err })) | |
138 | } | |
139 | ||
140 | if (badInboxes.length !== 0) { | |
141 | ActorFollowModel.incrementScores(badInboxes, ACTOR_FOLLOW_SCORE.PENALTY, t) | |
142 | .catch(err => logger.error('Cannot decrement scores of bad actor follows.', { err })) | |
143 | } | |
144 | } | |
145 | ||
146 | static loadByActorAndTarget (actorId: number, targetActorId: number, t?: Sequelize.Transaction) { | |
147 | const query = { | |
148 | where: { | |
149 | actorId, | |
150 | targetActorId: targetActorId | |
151 | }, | |
152 | include: [ | |
153 | { | |
154 | model: ActorModel, | |
155 | required: true, | |
156 | as: 'ActorFollower' | |
157 | }, | |
158 | { | |
159 | model: ActorModel, | |
160 | required: true, | |
161 | as: 'ActorFollowing' | |
162 | } | |
163 | ], | |
164 | transaction: t | |
165 | } | |
166 | ||
167 | return ActorFollowModel.findOne(query) | |
168 | } | |
169 | ||
170 | static loadByActorAndTargetNameAndHostForAPI (actorId: number, targetName: string, targetHost: string, t?: Sequelize.Transaction) { | |
171 | const actorFollowingPartInclude: IIncludeOptions = { | |
172 | model: ActorModel, | |
173 | required: true, | |
174 | as: 'ActorFollowing', | |
175 | where: { | |
176 | preferredUsername: targetName | |
177 | }, | |
178 | include: [ | |
179 | { | |
180 | model: VideoChannelModel.unscoped(), | |
181 | required: false | |
182 | } | |
183 | ] | |
184 | } | |
185 | ||
186 | if (targetHost === null) { | |
187 | actorFollowingPartInclude.where['serverId'] = null | |
188 | } else { | |
189 | actorFollowingPartInclude.include.push({ | |
190 | model: ServerModel, | |
191 | required: true, | |
192 | where: { | |
193 | host: targetHost | |
194 | } | |
195 | }) | |
196 | } | |
197 | ||
198 | const query = { | |
199 | where: { | |
200 | actorId | |
201 | }, | |
202 | include: [ | |
203 | actorFollowingPartInclude, | |
204 | { | |
205 | model: ActorModel, | |
206 | required: true, | |
207 | as: 'ActorFollower' | |
208 | } | |
209 | ], | |
210 | transaction: t | |
211 | } | |
212 | ||
213 | return ActorFollowModel.findOne(query) | |
214 | .then(result => { | |
215 | if (result && result.ActorFollowing.VideoChannel) { | |
216 | result.ActorFollowing.VideoChannel.Actor = result.ActorFollowing | |
217 | } | |
218 | ||
219 | return result | |
220 | }) | |
221 | } | |
222 | ||
223 | static listSubscribedIn (actorId: number, targets: { name: string, host?: string }[]) { | |
224 | const whereTab = targets | |
225 | .map(t => { | |
226 | if (t.host) { | |
227 | return { | |
228 | [ Sequelize.Op.and ]: [ | |
229 | { | |
230 | '$preferredUsername$': t.name | |
231 | }, | |
232 | { | |
233 | '$host$': t.host | |
234 | } | |
235 | ] | |
236 | } | |
237 | } | |
238 | ||
239 | return { | |
240 | [ Sequelize.Op.and ]: [ | |
241 | { | |
242 | '$preferredUsername$': t.name | |
243 | }, | |
244 | { | |
245 | '$serverId$': null | |
246 | } | |
247 | ] | |
248 | } | |
249 | }) | |
250 | ||
251 | const query = { | |
252 | attributes: [], | |
253 | where: { | |
254 | [ Sequelize.Op.and ]: [ | |
255 | { | |
256 | [ Sequelize.Op.or ]: whereTab | |
257 | }, | |
258 | { | |
259 | actorId | |
260 | } | |
261 | ] | |
262 | }, | |
263 | include: [ | |
264 | { | |
265 | attributes: [ 'preferredUsername' ], | |
266 | model: ActorModel.unscoped(), | |
267 | required: true, | |
268 | as: 'ActorFollowing', | |
269 | include: [ | |
270 | { | |
271 | attributes: [ 'host' ], | |
272 | model: ServerModel.unscoped(), | |
273 | required: false | |
274 | } | |
275 | ] | |
276 | } | |
277 | ] | |
278 | } | |
279 | ||
280 | return ActorFollowModel.findAll(query) | |
281 | } | |
282 | ||
283 | static listFollowingForApi (id: number, start: number, count: number, sort: string) { | |
284 | const query = { | |
285 | distinct: true, | |
286 | offset: start, | |
287 | limit: count, | |
288 | order: getSort(sort), | |
289 | include: [ | |
290 | { | |
291 | model: ActorModel, | |
292 | required: true, | |
293 | as: 'ActorFollower', | |
294 | where: { | |
295 | id | |
296 | } | |
297 | }, | |
298 | { | |
299 | model: ActorModel, | |
300 | as: 'ActorFollowing', | |
301 | required: true, | |
302 | include: [ ServerModel ] | |
303 | } | |
304 | ] | |
305 | } | |
306 | ||
307 | return ActorFollowModel.findAndCountAll(query) | |
308 | .then(({ rows, count }) => { | |
309 | return { | |
310 | data: rows, | |
311 | total: count | |
312 | } | |
313 | }) | |
314 | } | |
315 | ||
316 | static listSubscriptionsForApi (id: number, start: number, count: number, sort: string) { | |
317 | const query = { | |
318 | attributes: [], | |
319 | distinct: true, | |
320 | offset: start, | |
321 | limit: count, | |
322 | order: getSort(sort), | |
323 | where: { | |
324 | actorId: id | |
325 | }, | |
326 | include: [ | |
327 | { | |
328 | attributes: [ 'id' ], | |
329 | model: ActorModel.unscoped(), | |
330 | as: 'ActorFollowing', | |
331 | required: true, | |
332 | include: [ | |
333 | { | |
334 | model: VideoChannelModel.unscoped(), | |
335 | required: true, | |
336 | include: [ | |
337 | { | |
338 | attributes: { | |
339 | exclude: unusedActorAttributesForAPI | |
340 | }, | |
341 | model: ActorModel, | |
342 | required: true | |
343 | }, | |
344 | { | |
345 | model: AccountModel.unscoped(), | |
346 | required: true, | |
347 | include: [ | |
348 | { | |
349 | attributes: { | |
350 | exclude: unusedActorAttributesForAPI | |
351 | }, | |
352 | model: ActorModel, | |
353 | required: true | |
354 | } | |
355 | ] | |
356 | } | |
357 | ] | |
358 | } | |
359 | ] | |
360 | } | |
361 | ] | |
362 | } | |
363 | ||
364 | return ActorFollowModel.findAndCountAll(query) | |
365 | .then(({ rows, count }) => { | |
366 | return { | |
367 | data: rows.map(r => r.ActorFollowing.VideoChannel), | |
368 | total: count | |
369 | } | |
370 | }) | |
371 | } | |
372 | ||
373 | static listFollowersForApi (id: number, start: number, count: number, sort: string) { | |
374 | const query = { | |
375 | distinct: true, | |
376 | offset: start, | |
377 | limit: count, | |
378 | order: getSort(sort), | |
379 | include: [ | |
380 | { | |
381 | model: ActorModel, | |
382 | required: true, | |
383 | as: 'ActorFollower', | |
384 | include: [ ServerModel ] | |
385 | }, | |
386 | { | |
387 | model: ActorModel, | |
388 | as: 'ActorFollowing', | |
389 | required: true, | |
390 | where: { | |
391 | id | |
392 | } | |
393 | } | |
394 | ] | |
395 | } | |
396 | ||
397 | return ActorFollowModel.findAndCountAll(query) | |
398 | .then(({ rows, count }) => { | |
399 | return { | |
400 | data: rows, | |
401 | total: count | |
402 | } | |
403 | }) | |
404 | } | |
405 | ||
406 | static listAcceptedFollowerUrlsForApi (actorIds: number[], t: Sequelize.Transaction, start?: number, count?: number) { | |
407 | return ActorFollowModel.createListAcceptedFollowForApiQuery('followers', actorIds, t, start, count) | |
408 | } | |
409 | ||
410 | static listAcceptedFollowerSharedInboxUrls (actorIds: number[], t: Sequelize.Transaction) { | |
411 | return ActorFollowModel.createListAcceptedFollowForApiQuery( | |
412 | 'followers', | |
413 | actorIds, | |
414 | t, | |
415 | undefined, | |
416 | undefined, | |
417 | 'sharedInboxUrl', | |
418 | true | |
419 | ) | |
420 | } | |
421 | ||
422 | static listAcceptedFollowingUrlsForApi (actorIds: number[], t: Sequelize.Transaction, start?: number, count?: number) { | |
423 | return ActorFollowModel.createListAcceptedFollowForApiQuery('following', actorIds, t, start, count) | |
424 | } | |
425 | ||
426 | static async getStats () { | |
427 | const serverActor = await getServerActor() | |
428 | ||
429 | const totalInstanceFollowing = await ActorFollowModel.count({ | |
430 | where: { | |
431 | actorId: serverActor.id | |
432 | } | |
433 | }) | |
434 | ||
435 | const totalInstanceFollowers = await ActorFollowModel.count({ | |
436 | where: { | |
437 | targetActorId: serverActor.id | |
438 | } | |
439 | }) | |
440 | ||
441 | return { | |
442 | totalInstanceFollowing, | |
443 | totalInstanceFollowers | |
444 | } | |
445 | } | |
446 | ||
447 | private static async createListAcceptedFollowForApiQuery ( | |
448 | type: 'followers' | 'following', | |
449 | actorIds: number[], | |
450 | t: Sequelize.Transaction, | |
451 | start?: number, | |
452 | count?: number, | |
453 | columnUrl = 'url', | |
454 | distinct = false | |
455 | ) { | |
456 | let firstJoin: string | |
457 | let secondJoin: string | |
458 | ||
459 | if (type === 'followers') { | |
460 | firstJoin = 'targetActorId' | |
461 | secondJoin = 'actorId' | |
462 | } else { | |
463 | firstJoin = 'actorId' | |
464 | secondJoin = 'targetActorId' | |
465 | } | |
466 | ||
467 | const selections: string[] = [] | |
468 | if (distinct === true) selections.push('DISTINCT("Follows"."' + columnUrl + '") AS "url"') | |
469 | else selections.push('"Follows"."' + columnUrl + '" AS "url"') | |
470 | ||
471 | selections.push('COUNT(*) AS "total"') | |
472 | ||
473 | const tasks: Bluebird<any>[] = [] | |
474 | ||
475 | for (let selection of selections) { | |
476 | let query = 'SELECT ' + selection + ' FROM "actor" ' + | |
477 | 'INNER JOIN "actorFollow" ON "actorFollow"."' + firstJoin + '" = "actor"."id" ' + | |
478 | 'INNER JOIN "actor" AS "Follows" ON "actorFollow"."' + secondJoin + '" = "Follows"."id" ' + | |
479 | 'WHERE "actor"."id" = ANY ($actorIds) AND "actorFollow"."state" = \'accepted\' ' | |
480 | ||
481 | if (count !== undefined) query += 'LIMIT ' + count | |
482 | if (start !== undefined) query += ' OFFSET ' + start | |
483 | ||
484 | const options = { | |
485 | bind: { actorIds }, | |
486 | type: Sequelize.QueryTypes.SELECT, | |
487 | transaction: t | |
488 | } | |
489 | tasks.push(ActorFollowModel.sequelize.query(query, options)) | |
490 | } | |
491 | ||
492 | const [ followers, [ { total } ] ] = await Promise.all(tasks) | |
493 | const urls: string[] = followers.map(f => f.url) | |
494 | ||
495 | return { | |
496 | data: urls, | |
497 | total: parseInt(total, 10) | |
498 | } | |
499 | } | |
500 | ||
501 | private static incrementScores (inboxUrls: string[], value: number, t: Sequelize.Transaction | undefined) { | |
502 | const inboxUrlsString = inboxUrls.map(url => `'${url}'`).join(',') | |
503 | ||
504 | const query = `UPDATE "actorFollow" SET "score" = LEAST("score" + ${value}, ${ACTOR_FOLLOW_SCORE.MAX}) ` + | |
505 | 'WHERE id IN (' + | |
506 | 'SELECT "actorFollow"."id" FROM "actorFollow" ' + | |
507 | 'INNER JOIN "actor" ON "actor"."id" = "actorFollow"."actorId" ' + | |
508 | 'WHERE "actor"."inboxUrl" IN (' + inboxUrlsString + ') OR "actor"."sharedInboxUrl" IN (' + inboxUrlsString + ')' + | |
509 | ')' | |
510 | ||
511 | const options = t ? { | |
512 | type: Sequelize.QueryTypes.BULKUPDATE, | |
513 | transaction: t | |
514 | } : undefined | |
515 | ||
516 | return ActorFollowModel.sequelize.query(query, options) | |
517 | } | |
518 | ||
519 | private static listBadActorFollows () { | |
520 | const query = { | |
521 | where: { | |
522 | score: { | |
523 | [Sequelize.Op.lte]: 0 | |
524 | } | |
525 | }, | |
526 | logging: false | |
527 | } | |
528 | ||
529 | return ActorFollowModel.findAll(query) | |
530 | } | |
531 | ||
532 | toFormattedJSON (): AccountFollow { | |
533 | const follower = this.ActorFollower.toFormattedJSON() | |
534 | const following = this.ActorFollowing.toFormattedJSON() | |
535 | ||
536 | return { | |
537 | id: this.id, | |
538 | follower, | |
539 | following, | |
540 | score: this.score, | |
541 | state: this.state, | |
542 | createdAt: this.createdAt, | |
543 | updatedAt: this.updatedAt | |
544 | } | |
545 | } | |
546 | } |