263 lines
9.4 KiB
TypeScript
263 lines
9.4 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 { Brackets, In, IsNull, Not } from 'typeorm';
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import { Injectable, Inject } from '@nestjs/common';
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import type { MiUser, MiLocalUser, MiRemoteUser } from '@/models/User.js';
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import { isLocalUser, isRemoteUser } from '@/models/User.js';
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import { MiNote, IMentionedRemoteUsers } from '@/models/Note.js';
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import type { InstancesRepository, MiMeta, NotesRepository, UsersRepository } from '@/models/_.js';
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import { RelayService } from '@/core/RelayService.js';
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import { FederatedInstanceService } from '@/core/FederatedInstanceService.js';
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import { DI } from '@/di-symbols.js';
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import type { Config } from '@/config.js';
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import NotesChart from '@/core/chart/charts/notes.js';
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import PerUserNotesChart from '@/core/chart/charts/per-user-notes.js';
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import InstanceChart from '@/core/chart/charts/instance.js';
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import { GlobalEventService } from '@/core/GlobalEventService.js';
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import { ApRendererService } from '@/core/activitypub/ApRendererService.js';
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import { ApDeliverManagerService } from '@/core/activitypub/ApDeliverManagerService.js';
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import { bindThis } from '@/decorators.js';
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import { SearchService } from '@/core/SearchService.js';
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import { ModerationLogService } from '@/core/ModerationLogService.js';
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import { isPureRenote } from '@/misc/is-renote.js';
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import { LatestNoteService } from '@/core/LatestNoteService.js';
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import { ApLogService } from '@/core/ApLogService.js';
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import { TimeService } from '@/global/TimeService.js';
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import { trackTask } from '@/misc/promise-tracker.js';
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import { QueueService } from '@/core/QueueService.js';
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import { CacheService } from '@/core/CacheService.js';
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@Injectable()
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export class NoteDeleteService {
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constructor(
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@Inject(DI.config)
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private config: Config,
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@Inject(DI.meta)
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private meta: MiMeta,
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@Inject(DI.usersRepository)
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private usersRepository: UsersRepository,
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@Inject(DI.notesRepository)
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private notesRepository: NotesRepository,
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@Inject(DI.instancesRepository)
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private instancesRepository: InstancesRepository,
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private globalEventService: GlobalEventService,
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private relayService: RelayService,
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private federatedInstanceService: FederatedInstanceService,
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private apRendererService: ApRendererService,
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private apDeliverManagerService: ApDeliverManagerService,
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private searchService: SearchService,
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private moderationLogService: ModerationLogService,
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private notesChart: NotesChart,
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private perUserNotesChart: PerUserNotesChart,
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private instanceChart: InstanceChart,
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private latestNoteService: LatestNoteService,
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private readonly apLogService: ApLogService,
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private readonly timeService: TimeService,
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private readonly queueService: QueueService,
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private readonly cacheService: CacheService,
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) {}
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/**
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* 投稿を削除します。
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* @param user 投稿者
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* @param note 投稿
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*/
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async delete(user: { id: MiUser['id']; uri: MiUser['uri']; host: MiUser['host']; isBot: MiUser['isBot']; }, note: MiNote, quiet = false, deleter?: MiUser) {
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// This kicks off lots of things that can run in parallel, but we should still wait for completion to ensure consistent state and to avoid task flood when calling in a loop.
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const promises: Promise<unknown>[] = [];
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const deletedAt = this.timeService.date;
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const cascadingNotes = await this.findCascadingNotes(note);
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if (note.replyId) {
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promises.push(this.notesRepository.decrement({ id: note.replyId }, 'repliesCount', 1));
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}
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if (isPureRenote(note)) {
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promises.push(this.notesRepository.decrement({ id: note.renoteId }, 'renoteCount', 1));
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}
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if (!quiet) {
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promises.push(this.globalEventService.publishNoteStream(note.id, 'deleted', {
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deletedAt: deletedAt,
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}));
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//#region ローカルの投稿なら削除アクティビティを配送
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if (isLocalUser(user) && !note.localOnly) {
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const renote = isPureRenote(note)
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? await this.notesRepository.findOneBy({ id: note.renoteId })
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: null;
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const content = this.apRendererService.addContext(renote
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? this.apRendererService.renderUndo(this.apRendererService.renderAnnounce(renote.uri ?? `${this.config.url}/notes/${renote.id}`, note), user)
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: this.apRendererService.renderDelete(this.apRendererService.renderTombstone(`${this.config.url}/notes/${note.id}`), user));
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promises.push(this.deliverToConcerned(user, note, content));
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}
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// also deliver delete activity to cascaded notes
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const federatedLocalCascadingNotes = (cascadingNotes).filter(note => !note.localOnly && note.userHost == null); // filter out local-only notes
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for (const cascadingNote of federatedLocalCascadingNotes) {
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if (!cascadingNote.user) continue;
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if (!isLocalUser(cascadingNote.user)) continue;
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const content = this.apRendererService.addContext(this.apRendererService.renderDelete(this.apRendererService.renderTombstone(`${this.config.url}/notes/${cascadingNote.id}`), cascadingNote.user));
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promises.push(this.deliverToConcerned(cascadingNote.user, cascadingNote, content));
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}
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//#endregion
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this.notesChart.update(note, false);
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if (this.meta.enableChartsForRemoteUser || (user.host == null)) {
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this.perUserNotesChart.update(user, note, false);
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}
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if (!isPureRenote(note)) {
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// Decrement notes count (user)
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promises.push(this.decNotesCountOfUser(user));
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} else {
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promises.push(this.queueService.createMarkUserUpdatedJob(user.id));
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}
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if (this.meta.enableStatsForFederatedInstances) {
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if (isRemoteUser(user)) {
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if (!isPureRenote(note)) {
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const i = await this.federatedInstanceService.fetchOrRegister(user.host);
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promises.push(this.instancesRepository.decrement({ id: i.id }, 'notesCount', 1));
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}
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if (this.meta.enableChartsForFederatedInstances) {
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this.instanceChart.updateNote(user.host, note, false);
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}
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}
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}
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}
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for (const cascadingNote of cascadingNotes) {
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promises.push(this.searchService.unindexNote(cascadingNote));
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}
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promises.push(this.searchService.unindexNote(note));
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// Don't put this in the promise array, since it needs to happen before the next section
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await this.notesRepository.delete({
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id: note.id,
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userId: user.id,
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});
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// Update the Latest Note index / following feed *after* note is deleted
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promises.push(this.latestNoteService.handleDeletedNoteDeferred(note));
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for (const cascadingNote of cascadingNotes) {
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promises.push(this.latestNoteService.handleDeletedNoteDeferred(cascadingNote));
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}
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if (deleter && (note.userId !== deleter.id)) {
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const user = await this.cacheService.findUserById(note.userId);
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promises.push(this.moderationLogService.log(deleter, 'deleteNote', {
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noteId: note.id,
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noteUserId: note.userId,
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noteUserUsername: user.username,
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noteUserHost: user.host,
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}));
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}
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const deletedUris = [note, ...cascadingNotes]
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.map(n => n.uri)
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.filter((u): u is string => u != null);
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if (deletedUris.length > 0) {
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promises.push(this.apLogService.deleteObjectLogsDeferred(deletedUris));
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}
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await trackTask(async () => {
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await Promise.allSettled(promises);
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});
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}
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@bindThis
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private async decNotesCountOfUser(user: { id: MiUser['id']; }) {
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await this.usersRepository.createQueryBuilder().update()
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.set({
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updatedAt: this.timeService.date,
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notesCount: () => '"notesCount" - 1',
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})
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.where('id = :id', { id: user.id })
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.execute();
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}
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@bindThis
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private async findCascadingNotes(note: MiNote): Promise<MiNote[]> {
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const recursive = async (noteId: string): Promise<MiNote[]> => {
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const query = this.notesRepository.createQueryBuilder('note')
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.where('note.replyId = :noteId', { noteId })
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.orWhere(new Brackets(q => {
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q.where('note.renoteId = :noteId', { noteId })
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.andWhere('note.text IS NOT NULL');
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}))
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.leftJoinAndSelect('note.user', 'user');
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const replies = await query.getMany();
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return [
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replies,
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...await Promise.all(replies.map(reply => recursive(reply.id))),
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].flat();
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};
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const cascadingNotes: MiNote[] = await recursive(note.id);
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return cascadingNotes;
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}
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@bindThis
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private async getMentionedRemoteUsers(note: MiNote) {
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const where = [] as any[];
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// mention / reply / dm
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const uris = (JSON.parse(note.mentionedRemoteUsers) as IMentionedRemoteUsers).map(x => x.uri);
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if (uris.length > 0) {
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where.push(
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{ uri: In(uris) },
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);
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}
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// renote / quote
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if (note.renoteUserId) {
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where.push({
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id: note.renoteUserId,
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});
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}
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if (where.length === 0) return [];
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return await this.usersRepository.find({
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where,
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}) as MiRemoteUser[];
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}
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@bindThis
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private async getRenotedOrRepliedRemoteUsers(note: MiNote) {
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const query = this.notesRepository.createQueryBuilder('note')
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.leftJoinAndSelect('note.user', 'user')
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.where(new Brackets(qb => {
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qb.orWhere('note.renoteId = :renoteId', { renoteId: note.id });
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qb.orWhere('note.replyId = :replyId', { replyId: note.id });
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}))
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.andWhere({ userHost: Not(IsNull()) });
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const notes = await query.getMany() as (MiNote & { user: MiRemoteUser })[];
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const remoteUsers = notes.map(({ user }) => user);
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return remoteUsers;
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}
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@bindThis
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private async deliverToConcerned(user: { id: MiLocalUser['id']; host: null; }, note: MiNote, content: any) {
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await this.apDeliverManagerService.deliverToFollowers(user, content);
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await this.apDeliverManagerService.deliverToUsers(user, content, [
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...await this.getMentionedRemoteUsers(note),
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...await this.getRenotedOrRepliedRemoteUsers(note),
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]);
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await this.relayService.deliverToRelays(user, content);
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}
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}
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