346 lines
13 KiB
TypeScript
346 lines
13 KiB
TypeScript
/*
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* SPDX-FileCopyrightText: syuilo and misskey-project
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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import { Inject, Injectable } from '@nestjs/common';
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import { IsNull, In, MoreThan, Not } from 'typeorm';
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import { bindThis } from '@/decorators.js';
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import { DI } from '@/di-symbols.js';
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import type { MiLocalUser, MiRemoteUser, MiUser } from '@/models/User.js';
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import type { BlockingsRepository, FollowingsRepository, InstancesRepository, MutingsRepository, UserListMembershipsRepository, UsersRepository } from '@/models/_.js';
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import type { RelationshipJobData, ThinUser } from '@/queue/types.js';
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import { IdService } from '@/core/IdService.js';
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import { GlobalEventService } from '@/core/GlobalEventService.js';
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import { QueueService } from '@/core/QueueService.js';
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import { RelayService } from '@/core/RelayService.js';
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import { ApPersonService } from '@/core/activitypub/models/ApPersonService.js';
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import { ApDeliverManagerService } from '@/core/activitypub/ApDeliverManagerService.js';
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import { ApRendererService } from '@/core/activitypub/ApRendererService.js';
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import { UserEntityService } from '@/core/entities/UserEntityService.js';
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import { CacheService } from '@/core/CacheService.js';
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import { ProxyAccountService } from '@/core/ProxyAccountService.js';
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import { FederatedInstanceService } from '@/core/FederatedInstanceService.js';
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import { MetaService } from '@/core/MetaService.js';
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import InstanceChart from '@/core/chart/charts/instance.js';
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import PerUserFollowingChart from '@/core/chart/charts/per-user-following.js';
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@Injectable()
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export class AccountMoveService {
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constructor(
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@Inject(DI.usersRepository)
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private usersRepository: UsersRepository,
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@Inject(DI.followingsRepository)
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private followingsRepository: FollowingsRepository,
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@Inject(DI.blockingsRepository)
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private blockingsRepository: BlockingsRepository,
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@Inject(DI.mutingsRepository)
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private mutingsRepository: MutingsRepository,
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@Inject(DI.userListMembershipsRepository)
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private userListMembershipsRepository: UserListMembershipsRepository,
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@Inject(DI.instancesRepository)
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private instancesRepository: InstancesRepository,
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private userEntityService: UserEntityService,
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private idService: IdService,
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private apPersonService: ApPersonService,
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private apRendererService: ApRendererService,
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private apDeliverManagerService: ApDeliverManagerService,
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private globalEventService: GlobalEventService,
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private proxyAccountService: ProxyAccountService,
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private perUserFollowingChart: PerUserFollowingChart,
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private federatedInstanceService: FederatedInstanceService,
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private instanceChart: InstanceChart,
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private metaService: MetaService,
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private relayService: RelayService,
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private cacheService: CacheService,
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private queueService: QueueService,
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) {
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}
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/**
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* Move a local account to a new account.
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*
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* After delivering Move activity, its local followers unfollow the old account and then follow the new one.
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*/
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@bindThis
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public async moveFromLocal(src: MiLocalUser, dst: MiLocalUser | MiRemoteUser): Promise<unknown> {
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const srcUri = this.userEntityService.getUserUri(src);
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const dstUri = this.userEntityService.getUserUri(dst);
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// add movedToUri to indicate that the user has moved
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const update = {} as Partial<MiLocalUser>;
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update.alsoKnownAs = src.alsoKnownAs?.includes(dstUri) ? src.alsoKnownAs : src.alsoKnownAs?.concat([dstUri]) ?? [dstUri];
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update.movedToUri = dstUri;
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update.movedAt = new Date();
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await this.usersRepository.update(src.id, update);
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Object.assign(src, update);
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// Update cache
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this.cacheService.uriPersonCache.set(srcUri, src);
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const srcPerson = await this.apRendererService.renderPerson(src);
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const updateAct = this.apRendererService.addContext(this.apRendererService.renderUpdate(srcPerson, src));
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await this.apDeliverManagerService.deliverToFollowers(src, updateAct);
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this.relayService.deliverToRelays(src, updateAct);
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// Deliver Move activity to the followers of the old account
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const moveAct = this.apRendererService.addContext(this.apRendererService.renderMove(src, dst));
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await this.apDeliverManagerService.deliverToFollowers(src, moveAct);
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// Publish meUpdated event
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const iObj = await this.userEntityService.pack(src.id, src, { schema: 'MeDetailed', includeSecrets: true });
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this.globalEventService.publishMainStream(src.id, 'meUpdated', iObj);
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// Unfollow after 24 hours
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const followings = await this.followingsRepository.findBy({
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followerId: src.id,
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});
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this.queueService.createDelayedUnfollowJob(followings.map(following => ({
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from: { id: src.id },
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to: { id: following.followeeId },
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})), process.env.NODE_ENV === 'test' ? 10000 : 1000 * 60 * 60 * 24);
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await this.postMoveProcess(src, dst);
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return iObj;
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}
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@bindThis
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public async postMoveProcess(src: MiUser, dst: MiUser): Promise<void> {
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// Copy blockings and mutings, and update lists
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try {
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await Promise.all([
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this.copyBlocking(src, dst),
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this.copyMutings(src, dst),
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this.updateLists(src, dst),
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]);
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} catch {
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/* skip if any error happens */
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}
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// follow the new account
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const proxy = await this.proxyAccountService.fetch();
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const followings = await this.followingsRepository.findBy({
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followeeId: src.id,
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followerHost: IsNull(), // follower is local
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followerId: proxy ? Not(proxy.id) : undefined,
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});
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const followJobs = followings.map(following => ({
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from: { id: following.followerId },
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to: { id: dst.id },
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})) as RelationshipJobData[];
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// Decrease following count instead of unfollowing.
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try {
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await this.adjustFollowingCounts(followJobs.map(job => job.from.id), src);
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} catch {
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/* skip if any error happens */
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}
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// Should be queued because this can cause a number of follow per one move.
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this.queueService.createFollowJob(followJobs);
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}
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@bindThis
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public async copyBlocking(src: ThinUser, dst: ThinUser): Promise<void> {
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// Followers shouldn't overlap with blockers, but the destination account, different from the blockee (i.e., old account), may have followed the local user before moving.
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// So block the destination account here.
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const srcBlockings = await this.blockingsRepository.findBy({ blockeeId: src.id });
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const dstBlockings = await this.blockingsRepository.findBy({ blockeeId: dst.id });
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const blockerIds = dstBlockings.map(blocking => blocking.blockerId);
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// reblock the destination account
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const blockJobs: RelationshipJobData[] = [];
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for (const blocking of srcBlockings) {
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if (blockerIds.includes(blocking.blockerId)) continue; // skip if already blocked
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blockJobs.push({ from: { id: blocking.blockerId }, to: { id: dst.id } });
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}
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// no need to unblock the old account because it may be still functional
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this.queueService.createBlockJob(blockJobs);
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}
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@bindThis
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public async copyMutings(src: ThinUser, dst: ThinUser): Promise<void> {
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// Insert new mutings with the same values except mutee
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const oldMutings = await this.mutingsRepository.findBy([
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{ muteeId: src.id, expiresAt: IsNull() },
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{ muteeId: src.id, expiresAt: MoreThan(new Date()) },
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]);
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if (oldMutings.length === 0) return;
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// Check if the destination account is already indefinitely muted by the muter
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const existingMutingsMuterUserIds = await this.mutingsRepository.findBy(
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{ muteeId: dst.id, expiresAt: IsNull() },
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).then(mutings => mutings.map(muting => muting.muterId));
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const newMutings: Map<string, { muterId: string; muteeId: string; expiresAt: Date | null; }> = new Map();
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// 重複しないようにIDを生成
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const genId = (): string => {
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let id: string;
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do {
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id = this.idService.gen();
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} while (newMutings.has(id));
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return id;
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};
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for (const muting of oldMutings) {
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if (existingMutingsMuterUserIds.includes(muting.muterId)) continue; // skip if already muted indefinitely
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newMutings.set(genId(), {
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...muting,
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muteeId: dst.id,
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});
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}
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const arrayToInsert = Array.from(newMutings.entries()).map(entry => ({ ...entry[1], id: entry[0] }));
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await this.mutingsRepository.insert(arrayToInsert);
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}
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/**
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* Update lists while moving accounts.
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* - No removal of the old account from the lists
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* - Users number limit is not checked
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*
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* @param src ThinUser (old account)
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* @param dst User (new account)
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* @returns Promise<void>
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*/
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@bindThis
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public async updateLists(src: ThinUser, dst: MiUser): Promise<void> {
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// Return if there is no list to be updated.
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const oldMemberships = await this.userListMembershipsRepository.find({
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where: {
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userId: src.id,
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},
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});
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if (oldMemberships.length === 0) return;
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const existingUserListIds = await this.userListMembershipsRepository.find({
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where: {
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userId: dst.id,
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},
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}).then(memberships => memberships.map(membership => membership.userListId));
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const newMemberships: Map<string, { userId: string; userListId: string; userListUserId: string; }> = new Map();
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// 重複しないようにIDを生成
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const genId = (): string => {
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let id: string;
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do {
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id = this.idService.gen();
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} while (newMemberships.has(id));
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return id;
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};
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for (const membership of oldMemberships) {
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if (existingUserListIds.includes(membership.userListId)) continue; // skip if dst exists in this user's list
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newMemberships.set(genId(), {
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userId: dst.id,
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userListId: membership.userListId,
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userListUserId: membership.userListUserId,
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});
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}
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const arrayToInsert = Array.from(newMemberships.entries()).map(entry => ({ ...entry[1], id: entry[0] }));
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await this.userListMembershipsRepository.insert(arrayToInsert);
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// Have the proxy account follow the new account in the same way as UserListService.push
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if (this.userEntityService.isRemoteUser(dst)) {
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const proxy = await this.proxyAccountService.fetch();
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if (proxy) {
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this.queueService.createFollowJob([{ from: { id: proxy.id }, to: { id: dst.id } }]);
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}
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}
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}
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@bindThis
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private async adjustFollowingCounts(localFollowerIds: string[], oldAccount: MiUser): Promise<void> {
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if (localFollowerIds.length === 0) return;
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// Set the old account's following and followers counts to 0.
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await this.usersRepository.update({ id: oldAccount.id }, { followersCount: 0, followingCount: 0 });
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// Decrease following counts of local followers by 1.
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await this.usersRepository.decrement({ id: In(localFollowerIds) }, 'followingCount', 1);
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// Decrease follower counts of local followees by 1.
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const oldFollowings = await this.followingsRepository.findBy({ followerId: oldAccount.id });
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if (oldFollowings.length > 0) {
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await this.usersRepository.decrement({ id: In(oldFollowings.map(following => following.followeeId)) }, 'followersCount', 1);
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}
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// Update instance stats by decreasing remote followers count by the number of local followers who were following the old account.
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if (this.userEntityService.isRemoteUser(oldAccount)) {
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this.federatedInstanceService.fetch(oldAccount.host).then(async i => {
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this.instancesRepository.decrement({ id: i.id }, 'followersCount', localFollowerIds.length);
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if ((await this.metaService.fetch()).enableChartsForFederatedInstances) {
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this.instanceChart.updateFollowers(i.host, false);
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}
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});
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}
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// FIXME: expensive?
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for (const followerId of localFollowerIds) {
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this.perUserFollowingChart.update({ id: followerId, host: null }, oldAccount, false);
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}
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}
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/**
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* dstユーザーのalsoKnownAsをfetchPersonしていき、本当にmovedToUrlをdstに指定するユーザーが存在するのかを調べる
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*
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* @param dst movedToUrlを指定するユーザー
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* @param check
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* @param instant checkがtrueであるユーザーが最初に見つかったら即座にreturnするかどうか
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* @returns Promise<LocalUser | RemoteUser | null>
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*/
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@bindThis
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public async validateAlsoKnownAs(
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dst: MiLocalUser | MiRemoteUser,
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check: (oldUser: MiLocalUser | MiRemoteUser | null, newUser: MiLocalUser | MiRemoteUser) => boolean | Promise<boolean> = () => true,
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instant = false,
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): Promise<MiLocalUser | MiRemoteUser | null> {
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let resultUser: MiLocalUser | MiRemoteUser | null = null;
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if (this.userEntityService.isRemoteUser(dst)) {
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if ((new Date()).getTime() - (dst.lastFetchedAt?.getTime() ?? 0) > 10 * 1000) {
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await this.apPersonService.updatePerson(dst.uri);
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}
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dst = await this.apPersonService.fetchPerson(dst.uri) ?? dst;
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}
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if (!dst.alsoKnownAs || dst.alsoKnownAs.length === 0) return null;
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const dstUri = this.userEntityService.getUserUri(dst);
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for (const srcUri of dst.alsoKnownAs) {
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try {
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let src = await this.apPersonService.fetchPerson(srcUri);
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if (!src) continue; // oldAccountを探してもこのサーバーに存在しない場合はフォロー関係もないということなのでスルー
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if (this.userEntityService.isRemoteUser(dst)) {
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if ((new Date()).getTime() - (src.lastFetchedAt?.getTime() ?? 0) > 10 * 1000) {
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await this.apPersonService.updatePerson(srcUri);
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}
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src = await this.apPersonService.fetchPerson(srcUri) ?? src;
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}
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if (src.movedToUri === dstUri) {
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if (await check(resultUser, src)) {
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resultUser = src;
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}
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if (instant && resultUser) return resultUser;
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}
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} catch {
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/* skip if any error happens */
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}
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}
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return resultUser;
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}
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}
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