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import { Inject, Injectable } from '@nestjs/common';
import Redis from 'ioredis';
import type { Antenna } from '@/models/entities/Antenna.js';
import type { Note } from '@/models/entities/Note.js';
import type { User } from '@/models/entities/User.js';
import { IdService } from '@/core/IdService.js';
import { isUserRelated } from '@/misc/is-user-related.js';
import { GlobalEventService } from '@/core/GlobalEventService.js';
import * as Acct from '@/misc/acct.js';
import { Cache } from '@/misc/cache.js';
import type { Packed } from '@/misc/schema.js';
import { DI } from '@/di-symbols.js';
import type { MutingsRepository, BlockingsRepository, NotesRepository, AntennaNotesRepository, AntennasRepository, UserGroupJoiningsRepository, UserListJoiningsRepository } from '@/models/index.js';
import { UtilityService } from './UtilityService.js';
import type { OnApplicationShutdown } from '@nestjs/common';
@Injectable()
export class AntennaService implements OnApplicationShutdown {
private antennasFetched: boolean;
private antennas: Antenna[];
private blockingCache: Cache<User['id'][]>;
constructor(
@Inject(DI.redisSubscriber)
private redisSubscriber: Redis.Redis,
@Inject(DI.mutingsRepository)
private mutingsRepository: MutingsRepository,
@Inject(DI.blockingsRepository)
private blockingsRepository: BlockingsRepository,
@Inject(DI.notesRepository)
private notesRepository: NotesRepository,
@Inject(DI.antennaNotesRepository)
private antennaNotesRepository: AntennaNotesRepository,
@Inject(DI.antennasRepository)
private antennasRepository: AntennasRepository,
@Inject(DI.userGroupJoiningsRepository)
private userGroupJoiningsRepository: UserGroupJoiningsRepository,
@Inject(DI.userListJoiningsRepository)
private userListJoiningsRepository: UserListJoiningsRepository,
private utilityService: UtilityService,
private idService: IdService,
private globalEventServie: GlobalEventService,
) {
this.antennasFetched = false;
this.antennas = [];
this.blockingCache = new Cache<User['id'][]>(1000 * 60 * 5);
this.redisSubscriber.on('message', this.onRedisMessage);
}
public onApplicationShutdown(signal?: string | undefined) {
this.redisSubscriber.off('message', this.onRedisMessage);
}
private async onRedisMessage(_: string, data: string): Promise<void> {
const obj = JSON.parse(data);
if (obj.channel === 'internal') {
const { type, body } = obj.message;
switch (type) {
case 'antennaCreated':
this.antennas.push(body);
break;
case 'antennaUpdated':
this.antennas[this.antennas.findIndex(a => a.id === body.id)] = body;
break;
case 'antennaDeleted':
this.antennas = this.antennas.filter(a => a.id !== body.id);
break;
default:
break;
}
}
}
public async addNoteToAntenna(antenna: Antenna, note: Note, noteUser: { id: User['id']; }): Promise<void> {
// 通知しない設定になっているか、自分自身の投稿なら既読にする
const read = !antenna.notify || (antenna.userId === noteUser.id);
this.antennaNotesRepository.insert({
id: this.idService.genId(),
antennaId: antenna.id,
noteId: note.id,
read: read,
});
this.globalEventServie.publishAntennaStream(antenna.id, 'note', note);
if (!read) {
const mutings = await this.mutingsRepository.find({
where: {
muterId: antenna.userId,
},
select: ['muteeId'],
});
// Copy
const _note: Note = {
...note,
};
if (note.replyId != null) {
_note.reply = await this.notesRepository.findOneByOrFail({ id: note.replyId });
}
if (note.renoteId != null) {
_note.renote = await this.notesRepository.findOneByOrFail({ id: note.renoteId });
}
if (isUserRelated(_note, new Set<string>(mutings.map(x => x.muteeId)))) {
return;
}
// 2秒経っても既読にならなかったら通知
setTimeout(async () => {
const unread = await this.antennaNotesRepository.findOneBy({ antennaId: antenna.id, read: false });
if (unread) {
this.globalEventServie.publishMainStream(antenna.userId, 'unreadAntenna', antenna);
}
}, 2000);
}
}
// NOTE: フォローしているユーザーのノート、リストのユーザーのノート、グループのユーザーのノート指定はパフォーマンス上の理由で無効になっている
/**
* noteUserFollowers / antennaUserFollowing はどちらか一方が指定されていればよい
*/
public async checkHitAntenna(antenna: Antenna, note: (Note | Packed<'Note'>), noteUser: { id: User['id']; username: string; host: string | null; }, noteUserFollowers?: User['id'][], antennaUserFollowing?: User['id'][]): Promise<boolean> {
if (note.visibility === 'specified') return false;
// アンテナ作成者がノート作成者にブロックされていたらスキップ
const blockings = await this.blockingCache.fetch(noteUser.id, () => this.blockingsRepository.findBy({ blockerId: noteUser.id }).then(res => res.map(x => x.blockeeId)));
if (blockings.some(blocking => blocking === antenna.userId)) return false;
if (note.visibility === 'followers') {
if (noteUserFollowers && !noteUserFollowers.includes(antenna.userId)) return false;
if (antennaUserFollowing && !antennaUserFollowing.includes(note.userId)) return false;
}
if (!antenna.withReplies && note.replyId != null) return false;
if (antenna.src === 'home') {
if (noteUserFollowers && !noteUserFollowers.includes(antenna.userId)) return false;
if (antennaUserFollowing && !antennaUserFollowing.includes(note.userId)) return false;
} else if (antenna.src === 'list') {
const listUsers = (await this.userListJoiningsRepository.findBy({
userListId: antenna.userListId!,
})).map(x => x.userId);
if (!listUsers.includes(note.userId)) return false;
} else if (antenna.src === 'group') {
const joining = await this.userGroupJoiningsRepository.findOneByOrFail({ id: antenna.userGroupJoiningId! });
const groupUsers = (await this.userGroupJoiningsRepository.findBy({
userGroupId: joining.userGroupId,
})).map(x => x.userId);
if (!groupUsers.includes(note.userId)) return false;
} else if (antenna.src === 'users') {
const accts = antenna.users.map(x => {
const { username, host } = Acct.parse(x);
return this.utilityService.getFullApAccount(username, host).toLowerCase();
});
if (!accts.includes(this.utilityService.getFullApAccount(noteUser.username, noteUser.host).toLowerCase())) return false;
}
const keywords = antenna.keywords
// Clean up
.map(xs => xs.filter(x => x !== ''))
.filter(xs => xs.length > 0);
if (keywords.length > 0) {
if (note.text == null) return false;
const matched = keywords.some(and =>
and.every(keyword =>
antenna.caseSensitive
? note.text!.includes(keyword)
: note.text!.toLowerCase().includes(keyword.toLowerCase()),
));
if (!matched) return false;
}
const excludeKeywords = antenna.excludeKeywords
// Clean up
.map(xs => xs.filter(x => x !== ''))
.filter(xs => xs.length > 0);
if (excludeKeywords.length > 0) {
if (note.text == null) return false;
const matched = excludeKeywords.some(and =>
and.every(keyword =>
antenna.caseSensitive
? note.text!.includes(keyword)
: note.text!.toLowerCase().includes(keyword.toLowerCase()),
));
if (matched) return false;
}
if (antenna.withFile) {
if (note.fileIds && note.fileIds.length === 0) return false;
}
// TODO: eval expression
return true;
}
public async getAntennas() {
if (!this.antennasFetched) {
this.antennas = await this.antennasRepository.find();
this.antennasFetched = true;
}
return this.antennas;
}
}
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