import { Inject, Injectable } from '@nestjs/common'; import * as 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 { NoteEntityService } from '@/core/entities/NoteEntityService.js'; import { AntennaEntityService } from '@/core/entities/AntennaEntityService.js'; import { IdService } from '@/core/IdService.js'; import { isUserRelated } from '@/misc/is-user-related.js'; import { GlobalEventService } from '@/core/GlobalEventService.js'; import { PushNotificationService } from '@/core/PushNotificationService.js'; import * as Acct from '@/misc/acct.js'; import type { Packed } from '@/misc/json-schema.js'; import { DI } from '@/di-symbols.js'; import type { MutingsRepository, NotesRepository, AntennasRepository, UserListJoiningsRepository } from '@/models/index.js'; import { UtilityService } from '@/core/UtilityService.js'; import { bindThis } from '@/decorators.js'; import { StreamMessages } from '@/server/api/stream/types.js'; import type { OnApplicationShutdown } from '@nestjs/common'; @Injectable() export class AntennaService implements OnApplicationShutdown { private antennasFetched: boolean; private antennas: Antenna[]; constructor( @Inject(DI.redis) private redisClient: Redis.Redis, @Inject(DI.redisForSub) private redisForSub: Redis.Redis, @Inject(DI.mutingsRepository) private mutingsRepository: MutingsRepository, @Inject(DI.notesRepository) private notesRepository: NotesRepository, @Inject(DI.antennasRepository) private antennasRepository: AntennasRepository, @Inject(DI.userListJoiningsRepository) private userListJoiningsRepository: UserListJoiningsRepository, private utilityService: UtilityService, private idService: IdService, private globalEventService: GlobalEventService, private pushNotificationService: PushNotificationService, private noteEntityService: NoteEntityService, private antennaEntityService: AntennaEntityService, ) { this.antennasFetched = false; this.antennas = []; this.redisForSub.on('message', this.onRedisMessage); } @bindThis public onApplicationShutdown(signal?: string | undefined) { this.redisForSub.off('message', this.onRedisMessage); } @bindThis private async onRedisMessage(_: string, data: string): Promise { const obj = JSON.parse(data); if (obj.channel === 'internal') { const { type, body } = obj.message as StreamMessages['internal']['payload']; switch (type) { case 'antennaCreated': this.antennas.push({ ...body, createdAt: new Date(body.createdAt), lastUsedAt: new Date(body.lastUsedAt), }); break; case 'antennaUpdated': this.antennas[this.antennas.findIndex(a => a.id === body.id)] = { ...body, createdAt: new Date(body.createdAt), lastUsedAt: new Date(body.lastUsedAt), }; break; case 'antennaDeleted': this.antennas = this.antennas.filter(a => a.id !== body.id); break; default: break; } } } @bindThis public async addNoteToAntennas(note: Note, noteUser: { id: User['id']; username: string; host: string | null; }): Promise { const antennas = await this.getAntennas(); const antennasWithMatchResult = await Promise.all(antennas.map(antenna => this.checkHitAntenna(antenna, note, noteUser).then(hit => [antenna, hit] as const))); const matchedAntennas = antennasWithMatchResult.filter(([, hit]) => hit).map(([antenna]) => antenna); const redisPipeline = this.redisClient.pipeline(); for (const antenna of matchedAntennas) { redisPipeline.xadd( `antennaTimeline:${antenna.id}`, 'MAXLEN', '~', '200', '*', 'note', note.id); this.globalEventService.publishAntennaStream(antenna.id, 'note', note); } redisPipeline.exec(); } // 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 @bindThis public async checkHitAntenna(antenna: Antenna, note: (Note | Packed<'Note'>), noteUser: { id: User['id']; username: string; host: string | null; }): Promise { if (note.visibility === 'specified') return false; if (note.visibility === 'followers') return false; if (!antenna.withReplies && note.replyId != null) return false; if (antenna.src === 'home') { // TODO } 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 === '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 && note.cw == null) return false; const _text = (note.text ?? '') + '\n' + (note.cw ?? ''); const matched = keywords.some(and => and.every(keyword => antenna.caseSensitive ? _text.includes(keyword) : _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 && note.cw == null) return false; const _text = (note.text ?? '') + '\n' + (note.cw ?? ''); const matched = excludeKeywords.some(and => and.every(keyword => antenna.caseSensitive ? _text.includes(keyword) : _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; } @bindThis public async getAntennas() { if (!this.antennasFetched) { this.antennas = await this.antennasRepository.findBy({ isActive: true, }); this.antennasFetched = true; } return this.antennas; } }