add channel_muting services

packages/backend/src/core/ChannelMutingService.ts

@@ -0,0 +1,106 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import Redis from 'ioredis';
+import { DI } from '@/di-symbols.js';
+import type { ChannelMutingRepository, MiChannel, MiUser } from '@/models/_.js';
+import { IdService } from '@/core/IdService.js';
+import { GlobalEvents, GlobalEventService } from '@/core/GlobalEventService.js';
+import { bindThis } from '@/decorators.js';
+import { RedisKVCache } from '@/misc/cache.js';
+
+@Injectable()
+export class ChannelMutingService {
+	public userMutingChannelsCache: RedisKVCache<Set<string>>;
+
+	constructor(
+		@Inject(DI.redis)
+		private redisClient: Redis.Redis,
+		@Inject(DI.redisForSub)
+		private redisForSub: Redis.Redis,
+		@Inject(DI.channelMutingRepository)
+		private channelMutingRepository: ChannelMutingRepository,
+		private idService: IdService,
+		private globalEventService: GlobalEventService,
+	) {
+		this.userMutingChannelsCache = new RedisKVCache<Set<string>>(this.redisClient, 'channelMutingChannels', {
+			lifetime: 1000 * 60 * 30, // 30m
+			memoryCacheLifetime: 1000 * 60, // 1m
+			fetcher: (userId) => this.channelMutingRepository.find({
+				where: { userId: userId },
+				select: ['channelId'],
+			}).then(xs => new Set(xs.map(x => x.channelId))),
+			toRedisConverter: (value) => JSON.stringify(Array.from(value)),
+			fromRedisConverter: (value) => new Set(JSON.parse(value)),
+		});
+
+		this.redisForSub.on('message', this.onMessage);
+	}
+
+	@bindThis
+	public async mute(params: {
+		requestUserId: MiUser['id'],
+		targetChannelId: MiChannel['id'],
+		expiresAt?: Date | null,
+	}): Promise<void> {
+		await this.channelMutingRepository.insert({
+			id: this.idService.gen(),
+			userId: params.requestUserId,
+			channelId: params.targetChannelId,
+			expiresAt: params.expiresAt,
+		});
+
+		this.globalEventService.publishInternalEvent('muteChannel', {
+			userId: params.requestUserId,
+			channelId: params.targetChannelId,
+		});
+	}
+
+	@bindThis
+	public async unmute(params: {
+		requestUserId: MiUser['id'],
+		targetChannelId: MiChannel['id'],
+	}): Promise<void> {
+		await this.channelMutingRepository.delete({
+			userId: params.requestUserId,
+			channelId: params.targetChannelId,
+		});
+
+		this.globalEventService.publishInternalEvent('unmuteChannel', {
+			userId: params.requestUserId,
+			channelId: params.targetChannelId,
+		});
+	}
+
+	@bindThis
+	private async onMessage(_: string, data: string): Promise<void> {
+		const obj = JSON.parse(data);
+
+		if (obj.channel === 'internal') {
+			const { type, body } = obj.message as GlobalEvents['internal']['payload'];
+			switch (type) {
+				case 'muteChannel': {
+					this.userMutingChannelsCache.refresh(body.userId).then();
+					break;
+				}
+				case 'unmuteChannel': {
+					this.userMutingChannelsCache.delete(body.userId).then();
+					break;
+				}
+			}
+		}
+	}
+
+	@bindThis
+	public dispose(): void {
+		this.userMutingChannelsCache.dispose();
+	}
+
+	@bindThis
+	public onApplicationShutdown(signal?: string | undefined): void {
+		this.dispose();
+	}
+}

packages/backend/src/core/CoreModule.ts

@@ -12,6 +12,7 @@ import {
 } from '@/core/entities/AbuseReportNotificationRecipientEntityService.js';
 import { AbuseReportNotificationService } from '@/core/AbuseReportNotificationService.js';
 import { SystemWebhookService } from '@/core/SystemWebhookService.js';
+import { ChannelMutingService } from '@/core/ChannelMutingService.js';
 import { AccountMoveService } from './AccountMoveService.js';
 import { AccountUpdateService } from './AccountUpdateService.js';
 import { AiService } from './AiService.js';
@@ -215,6 +216,7 @@ const $FeaturedService: Provider = { provide: 'FeaturedService', useExisting: Fe
 const $FanoutTimelineService: Provider = { provide: 'FanoutTimelineService', useExisting: FanoutTimelineService };
 const $FanoutTimelineEndpointService: Provider = { provide: 'FanoutTimelineEndpointService', useExisting: FanoutTimelineEndpointService };
 const $ChannelFollowingService: Provider = { provide: 'ChannelFollowingService', useExisting: ChannelFollowingService };
+const $ChannelMutingService: Provider = { provide: 'ChannelMutingService', useExisting: ChannelMutingService };
 const $RegistryApiService: Provider = { provide: 'RegistryApiService', useExisting: RegistryApiService };
 const $ReversiService: Provider = { provide: 'ReversiService', useExisting: ReversiService };
 
@@ -361,6 +363,7 @@ const $ApQuestionService: Provider = { provide: 'ApQuestionService', useExisting
 		FanoutTimelineService,
 		FanoutTimelineEndpointService,
 		ChannelFollowingService,
+		ChannelMutingService,
 		RegistryApiService,
 		ReversiService,
 
@@ -503,6 +506,7 @@ const $ApQuestionService: Provider = { provide: 'ApQuestionService', useExisting
 		$FanoutTimelineService,
 		$FanoutTimelineEndpointService,
 		$ChannelFollowingService,
+		$ChannelMutingService,
 		$RegistryApiService,
 		$ReversiService,
 
@@ -646,6 +650,7 @@ const $ApQuestionService: Provider = { provide: 'ApQuestionService', useExisting
 		FanoutTimelineService,
 		FanoutTimelineEndpointService,
 		ChannelFollowingService,
+		ChannelMutingService,
 		RegistryApiService,
 		ReversiService,
 
@@ -787,6 +792,7 @@ const $ApQuestionService: Provider = { provide: 'ApQuestionService', useExisting
 		$FanoutTimelineService,
 		$FanoutTimelineEndpointService,
 		$ChannelFollowingService,
+		$ChannelMutingService,
 		$RegistryApiService,
 		$ReversiService,
 

packages/backend/src/core/GlobalEventService.ts

@@ -240,6 +240,8 @@ export interface InternalEventTypes {
 	metaUpdated: MiMeta;
 	followChannel: { userId: MiUser['id']; channelId: MiChannel['id']; };
 	unfollowChannel: { userId: MiUser['id']; channelId: MiChannel['id']; };
+	muteChannel: { userId: MiUser['id']; channelId: MiChannel['id']; };
+	unmuteChannel: { userId: MiUser['id']; channelId: MiChannel['id']; };
 	updateUserProfile: MiUserProfile;
 	mute: { muterId: MiUser['id']; muteeId: MiUser['id']; };
 	unmute: { muterId: MiUser['id']; muteeId: MiUser['id']; };