タイムライン取得処理への組み込み

packages/backend/migration/1718015380000-add-channel-muting.js

@@ -20,11 +20,16 @@ export class AddChannelMuting1718015380000 {
 			);
 			CREATE INDEX "IDX_channel_muting_userId" ON "channel_muting" ("userId");
 			CREATE INDEX "IDX_channel_muting_channelId" ON "channel_muting" ("channelId");
+
+			ALTER TABLE note ADD "renoteChannelId" varchar(32);
+			COMMENT ON COLUMN note."renoteChannelId" is '[Denormalized]';
 		`);
 	}
 
 	async down(queryRunner) {
 		await queryRunner.query(`
+			ALTER TABLE note DROP COLUMN "renoteChannelId";
+
 			ALTER TABLE "channel_muting"
 				DROP CONSTRAINT "FK_channel_muting_userId";
 			ALTER TABLE "channel_muting"

packages/backend/src/core/ChannelMutingService.ts

@@ -6,7 +6,7 @@
 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 type { ChannelMutingRepository, ChannelsRepository, MiChannel, MiUser } from '@/models/_.js';
 import { IdService } from '@/core/IdService.js';
 import { GlobalEvents, GlobalEventService } from '@/core/GlobalEventService.js';
 import { bindThis } from '@/decorators.js';
@@ -21,6 +21,8 @@ export class ChannelMutingService {
 		private redisClient: Redis.Redis,
 		@Inject(DI.redisForSub)
 		private redisForSub: Redis.Redis,
+		@Inject(DI.channelsRepository)
+		private channelsRepository: ChannelsRepository,
 		@Inject(DI.channelMutingRepository)
 		private channelMutingRepository: ChannelMutingRepository,
 		private idService: IdService,
@@ -40,6 +42,61 @@ export class ChannelMutingService {
 		this.redisForSub.on('message', this.onMessage);
 	}
 
+	/**
+	 * ミュートしているチャンネルの一覧を取得する.
+	 * @param params
+	 * @param [opts]
+	 * @param {(boolean|undefined)} [opts.joinUser=undefined] チャンネルオーナーのユーザ情報をJOINするかどうか(falseまたは省略時はJOINしない).
+	 * @param {(boolean|undefined)} [opts.joinBannerFile=undefined] バナー画像のドライブファイルをJOINするかどうか(falseまたは省略時はJOINしない).
+	 */
+	@bindThis
+	public async list(
+		params: {
+			requestUserId: MiUser['id'],
+		},
+		opts?: {
+			joinUser?: boolean;
+			joinBannerFile?: boolean;
+		},
+	): Promise<MiChannel[]> {
+		const q = this.channelsRepository.createQueryBuilder('channel')
+			.innerJoin('channel_muting', 'channel_muting', 'channel_muting.channelId = channel.id')
+			.where('channel_muting.userId = :userId', { userId: params.requestUserId })
+			.andWhere(qb => {
+				qb.where('channel_muting.expiresAt IS NULL')
+					.orWhere('channel_muting.expiresAt > :now:', { now: new Date() });
+			});
+
+		if (opts?.joinUser) {
+			q.innerJoinAndSelect('channel.user', 'user');
+		}
+
+		if (opts?.joinBannerFile) {
+			q.leftJoinAndSelect('channel.banner', 'drive_file');
+		}
+
+		return q.getMany();
+	}
+
+	/**
+	 * 既にミュートされているかどうかをキャッシュから取得する.
+	 * @param params
+	 * @param params.requestUserId
+	 */
+	@bindThis
+	public async isMuted(params: {
+		requestUserId: MiUser['id'],
+		targetChannelId: MiChannel['id'],
+	}): Promise<boolean> {
+		const mutedChannels = await this.userMutingChannelsCache.get(params.requestUserId);
+		return (mutedChannels?.has(params.targetChannelId) ?? false);
+	}
+
+	/**
+	 * チャンネルをミュートする.
+	 * @param params
+	 * @param {(Date|null|undefined)} [params.expiresAt] ミュートの有効期限. nullまたは省略時は無期限.
+	 */
 	@bindThis
 	public async mute(params: {
 		requestUserId: MiUser['id'],
@@ -59,6 +116,10 @@ export class ChannelMutingService {
 		});
 	}
 
+	/**
+	 * チャンネルのミュートを解除する.
+	 * @param params
+	 */
 	@bindThis
 	public async unmute(params: {
 		requestUserId: MiUser['id'],

packages/backend/src/core/FanoutTimelineEndpointService.ts

@@ -17,6 +17,8 @@ import { isQuote, isRenote } from '@/misc/is-renote.js';
 import { CacheService } from '@/core/CacheService.js';
 import { isReply } from '@/misc/is-reply.js';
 import { isInstanceMuted } from '@/misc/is-instance-muted.js';
+import { ChannelMutingService } from '@/core/ChannelMutingService.js';
+import { isChannelRelated } from '@/misc/is-channel-related.js';
 
 type TimelineOptions = {
 	untilId: string | null,
@@ -33,6 +35,7 @@ type TimelineOptions = {
 	excludeNoFiles?: boolean;
 	excludeReplies?: boolean;
 	excludePureRenotes: boolean;
+	excludeMutedChannels?: boolean;
 	dbFallback: (untilId: string | null, sinceId: string | null, limit: number) => Promise<MiNote[]>,
 };
 
@@ -45,6 +48,7 @@ export class FanoutTimelineEndpointService {
 		private noteEntityService: NoteEntityService,
 		private cacheService: CacheService,
 		private fanoutTimelineService: FanoutTimelineService,
+		private channelMutingService: ChannelMutingService,
 	) {
 	}
 
@@ -101,11 +105,13 @@ export class FanoutTimelineEndpointService {
 					userIdsWhoMeMutingRenotes,
 					userIdsWhoBlockingMe,
 					userMutedInstances,
+					userMutedChannels,
 				] = await Promise.all([
 					this.cacheService.userMutingsCache.fetch(ps.me.id),
 					this.cacheService.renoteMutingsCache.fetch(ps.me.id),
 					this.cacheService.userBlockedCache.fetch(ps.me.id),
 					this.cacheService.userProfileCache.fetch(me.id).then(p => new Set(p.mutedInstances)),
+					ps.excludeMutedChannels ? this.channelMutingService.userMutingChannelsCache.fetch(me.id) : Promise.resolve(new Set<string>()),
 				]);
 
 				const parentFilter = filter;
@@ -114,6 +120,7 @@ export class FanoutTimelineEndpointService {
 					if (isUserRelated(note, userIdsWhoMeMuting, ps.ignoreAuthorFromMute)) return false;
 					if (!ps.ignoreAuthorFromMute && isRenote(note) && !isQuote(note) && userIdsWhoMeMutingRenotes.has(note.userId)) return false;
 					if (isInstanceMuted(note, userMutedInstances)) return false;
+					if (ps.excludeMutedChannels && isChannelRelated(note, userMutedChannels)) return false;
 
 					return parentFilter(note);
 				};

packages/backend/src/core/NoteCreateService.ts

@@ -434,6 +434,7 @@ export class NoteCreateService implements OnApplicationShutdown {
 			replyUserHost: data.reply ? data.reply.userHost : null,
 			renoteUserId: data.renote ? data.renote.userId : null,
 			renoteUserHost: data.renote ? data.renote.userHost : null,
+			renoteChannelId: data.renote ? data.renote.channelId : null,
 			userHost: user.host,
 		});
 

packages/backend/src/core/entities/ChannelEntityService.ts

@@ -4,36 +4,39 @@
  */
 
 import { Inject, Injectable } from '@nestjs/common';
+import { In } from 'typeorm';
 import { DI } from '@/di-symbols.js';
-import type { ChannelFavoritesRepository, ChannelFollowingsRepository, ChannelsRepository, DriveFilesRepository, NotesRepository } from '@/models/_.js';
+import type {
+	ChannelFavoritesRepository,
+	ChannelFollowingsRepository,
+	ChannelsRepository,
+	DriveFilesRepository,
+	MiDriveFile,
+	MiNote,
+	NotesRepository,
+} from '@/models/_.js';
 import type { Packed } from '@/misc/json-schema.js';
-import type { } from '@/models/Blocking.js';
 import type { MiUser } from '@/models/User.js';
 import type { MiChannel } from '@/models/Channel.js';
 import { bindThis } from '@/decorators.js';
 import { IdService } from '@/core/IdService.js';
+import { isNotNull } from '@/misc/is-not-null.js';
 import { DriveFileEntityService } from './DriveFileEntityService.js';
 import { NoteEntityService } from './NoteEntityService.js';
-import { In } from 'typeorm';
 
 @Injectable()
 export class ChannelEntityService {
 	constructor(
 		@Inject(DI.channelsRepository)
 		private channelsRepository: ChannelsRepository,
-
 		@Inject(DI.channelFollowingsRepository)
 		private channelFollowingsRepository: ChannelFollowingsRepository,
-
 		@Inject(DI.channelFavoritesRepository)
 		private channelFavoritesRepository: ChannelFavoritesRepository,
-
 		@Inject(DI.notesRepository)
 		private notesRepository: NotesRepository,
-
 		@Inject(DI.driveFilesRepository)
 		private driveFilesRepository: DriveFilesRepository,
-
 		private noteEntityService: NoteEntityService,
 		private driveFileEntityService: DriveFileEntityService,
 		private idService: IdService,
@@ -45,31 +48,50 @@ export class ChannelEntityService {
 		src: MiChannel['id'] | MiChannel,
 		me?: { id: MiUser['id'] } | null | undefined,
 		detailed?: boolean,
+		opts?: {
+			bannerFiles?: Map<MiDriveFile['id'], MiDriveFile>;
+			followings?: Set<MiChannel['id']>;
+			favorites?: Set<MiChannel['id']>;
+			pinnedNotes?: Map<MiNote['id'], MiNote>;
+		},
 	): Promise<Packed<'Channel'>> {
 		const channel = typeof src === 'object' ? src : await this.channelsRepository.findOneByOrFail({ id: src });
-		const meId = me ? me.id : null;
 
-		const banner = channel.bannerId ? await this.driveFilesRepository.findOneBy({ id: channel.bannerId }) : null;
+		let bannerFile: MiDriveFile | null = null;
+		if (channel.bannerId) {
+			bannerFile = opts?.bannerFiles?.get(channel.bannerId)
+				?? await this.driveFilesRepository.findOneByOrFail({ id: channel.bannerId });
+		}
 
-		const isFollowing = meId ? await this.channelFollowingsRepository.exists({
+		let isFollowing = false;
+		let isFavorite = false;
+		if (me) {
+			isFollowing = opts?.followings?.has(channel.id) ?? await this.channelFollowingsRepository.exists({
 				where: {
-				followerId: meId,
+					followerId: me.id,
 					followeeId: channel.id,
 				},
-		}) : false;
+			});
 
-		const isFavorited = meId ? await this.channelFavoritesRepository.exists({
+			isFavorite = opts?.favorites?.has(channel.id) ?? await this.channelFavoritesRepository.exists({
 				where: {
-				userId: meId,
+					userId: me.id,
 					channelId: channel.id,
 				},
-		}) : false;
+			});
+		}
 
-		const pinnedNotes = channel.pinnedNoteIds.length > 0 ? await this.notesRepository.find({
-			where: {
-				id: In(channel.pinnedNoteIds),
-			},
-		}) : [];
+		const pinnedNotes = Array.of<MiNote>();
+		if (channel.pinnedNoteIds.length > 0) {
+			pinnedNotes.push(
+				...(
+					opts?.pinnedNotes
+						// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+						? channel.pinnedNoteIds.map(it => opts.pinnedNotes!.get(it)).filter(isNotNull)
+						: await this.notesRepository.findBy({ id: In(channel.pinnedNoteIds) })
+				),
+			);
+		}
 
 		return {
 			id: channel.id,
@@ -78,7 +100,7 @@ export class ChannelEntityService {
 			name: channel.name,
 			description: channel.description,
 			userId: channel.userId,
-			bannerUrl: banner ? this.driveFileEntityService.getPublicUrl(banner) : null,
+			bannerUrl: bannerFile ? this.driveFileEntityService.getPublicUrl(bannerFile) : null,
 			pinnedNoteIds: channel.pinnedNoteIds,
 			color: channel.color,
 			isArchived: channel.isArchived,
@@ -89,7 +111,7 @@ export class ChannelEntityService {
 
 			...(me ? {
 				isFollowing,
-				isFavorited,
+				isFavorite,
 				hasUnreadNote: false, // 後方互換性のため
 			} : {}),
 
@@ -98,5 +120,62 @@ export class ChannelEntityService {
 			} : {}),
 		};
 	}
+
+	@bindThis
+	public async packMany(
+		src: MiChannel['id'][] | MiChannel[],
+		me?: { id: MiUser['id'] } | null | undefined,
+		detailed?: boolean,
+	): Promise<Packed<'Channel'>[]> {
+		// IDのみの要素がある場合、DBからオブジェクトを取得して補う
+		const channels = src.filter(it => typeof it === 'object') as MiChannel[];
+		channels.push(
+			...(await this.channelsRepository.find({
+				where: {
+					id: In(src.filter(it => typeof it !== 'object') as MiChannel['id'][]),
+				},
+			})),
+		);
+		channels.sort((a, b) => a.id.localeCompare(b.id));
+
+		const bannerFiles = await this.driveFilesRepository
+			.findBy({
+				id: In(channels.map(it => it.bannerId).filter(it => it != null)),
+			})
+			.then(it => new Map(it.map(it => [it.id, it])));
+
+		const followings = me
+			? await this.channelFollowingsRepository
+				.findBy({
+					followerId: me.id,
+					followeeId: In(channels.map(it => it.id)),
+				})
+				.then(it => new Set(it.map(it => it.followeeId)))
+			: new Set<MiChannel['id']>();
+
+		const favorites = me
+			? await this.channelFavoritesRepository
+				.findBy({
+					userId: me.id,
+					channelId: In(channels.map(it => it.id)),
+				})
+				.then(it => new Set(it.map(it => it.channelId)))
+			: new Set<MiChannel['id']>();
+
+		const pinnedNotes = await this.notesRepository
+			.find({
+				where: {
+					id: In(channels.flatMap(it => it.pinnedNoteIds)),
+				},
+			})
+			.then(it => new Map(it.map(it => [it.id, it])));
+
+		return Promise.all(channels.map(it => this.pack(it, me, detailed, {
+			bannerFiles,
+			followings,
+			favorites,
+			pinnedNotes,
+		})));
+	}
 }
 

packages/backend/src/misc/is-channel-related.ts

@@ -0,0 +1,33 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { MiNote } from '@/models/Note.js';
+import { Packed } from '@/misc/json-schema.js';
+
+/**
+ * {@link note}が{@link channelIds}のチャンネルに関連するかどうかを判定し、関連する場合はtrueを返します。
+ * 関連するというのは、{@link channelIds}のチャンネルに向けての投稿であるか、またはそのチャンネルの投稿をリノート・引用リノートした投稿であるかを指します。
+ *
+ * @param note 確認対象のノート
+ * @param channelIds 確認対象のチャンネルID一覧
+ */
+export function isChannelRelated(note: MiNote | Packed<'Note'>, channelIds: Set<string>): boolean {
+	if (!note.channelId) {
+		// チャンネル投稿じゃなければ無条件でOK
+		return true;
+	}
+
+	if (channelIds.has(note.channelId)) {
+		return true;
+	}
+
+	if (note.renote != null && note.renote.channelId && channelIds.has(note.renote.channelId)) {
+		return true;
+	}
+
+	// NOTE: リプライはchannelIdのチェックだけでOKなはずなので見てない
+
+	return false;
+}

packages/backend/src/models/Note.ts

@@ -229,6 +229,13 @@ export class MiNote {
 		comment: '[Denormalized]',
 	})
 	public renoteUserHost: string | null;
+
+	@Column({
+		...id(),
+		nullable: true,
+		comment: '[Denormalized]',
+	})
+	public renoteChannelId: MiChannel['id'] | null;
 	//#endregion
 
 	constructor(data: Partial<MiNote>) {

packages/backend/src/server/api/EndpointsModule.ts

@@ -124,6 +124,9 @@ import * as ep___channels_favorite from './endpoints/channels/favorite.js';
 import * as ep___channels_unfavorite from './endpoints/channels/unfavorite.js';
 import * as ep___channels_myFavorites from './endpoints/channels/my-favorites.js';
 import * as ep___channels_search from './endpoints/channels/search.js';
+import * as ep___channels_mute_create from './endpoints/channels/mute/create.js';
+import * as ep___channels_mute_delete from './endpoints/channels/mute/delete.js';
+import * as ep___channels_mute_list from './endpoints/channels/mute/list.js';
 import * as ep___charts_activeUsers from './endpoints/charts/active-users.js';
 import * as ep___charts_apRequest from './endpoints/charts/ap-request.js';
 import * as ep___charts_drive from './endpoints/charts/drive.js';
@@ -507,6 +510,9 @@ const $channels_favorite: Provider = { provide: 'ep:channels/favorite', useClass
 const $channels_unfavorite: Provider = { provide: 'ep:channels/unfavorite', useClass: ep___channels_unfavorite.default };
 const $channels_myFavorites: Provider = { provide: 'ep:channels/my-favorites', useClass: ep___channels_myFavorites.default };
 const $channels_search: Provider = { provide: 'ep:channels/search', useClass: ep___channels_search.default };
+const $channels_mute_create: Provider = { provide: 'ep:channels/mute/create', useClass: ep___channels_mute_create.default };
+const $channels_mute_delete: Provider = { provide: 'ep:channels/mute/delete', useClass: ep___channels_mute_delete.default };
+const $channels_mute_list: Provider = { provide: 'ep:channels/mute/list', useClass: ep___channels_mute_list.default };
 const $charts_activeUsers: Provider = { provide: 'ep:charts/active-users', useClass: ep___charts_activeUsers.default };
 const $charts_apRequest: Provider = { provide: 'ep:charts/ap-request', useClass: ep___charts_apRequest.default };
 const $charts_drive: Provider = { provide: 'ep:charts/drive', useClass: ep___charts_drive.default };
@@ -894,6 +900,9 @@ const $reversi_verify: Provider = { provide: 'ep:reversi/verify', useClass: ep__
 		$channels_unfavorite,
 		$channels_myFavorites,
 		$channels_search,
+		$channels_mute_create,
+		$channels_mute_delete,
+		$channels_mute_list,
 		$charts_activeUsers,
 		$charts_apRequest,
 		$charts_drive,
@@ -1275,6 +1284,9 @@ const $reversi_verify: Provider = { provide: 'ep:reversi/verify', useClass: ep__
 		$channels_unfavorite,
 		$channels_myFavorites,
 		$channels_search,
+		$channels_mute_create,
+		$channels_mute_delete,
+		$channels_mute_list,
 		$charts_activeUsers,
 		$charts_apRequest,
 		$charts_drive,

packages/backend/src/server/api/endpoints.ts

@@ -130,6 +130,9 @@ import * as ep___channels_favorite from './endpoints/channels/favorite.js';
 import * as ep___channels_unfavorite from './endpoints/channels/unfavorite.js';
 import * as ep___channels_myFavorites from './endpoints/channels/my-favorites.js';
 import * as ep___channels_search from './endpoints/channels/search.js';
+import * as ep___channels_mute_create from './endpoints/channels/mute/create.js';
+import * as ep___channels_mute_delete from './endpoints/channels/mute/delete.js';
+import * as ep___channels_mute_list from './endpoints/channels/mute/list.js';
 import * as ep___charts_activeUsers from './endpoints/charts/active-users.js';
 import * as ep___charts_apRequest from './endpoints/charts/ap-request.js';
 import * as ep___charts_drive from './endpoints/charts/drive.js';
@@ -511,6 +514,9 @@ const eps = [
 	['channels/unfavorite', ep___channels_unfavorite],
 	['channels/my-favorites', ep___channels_myFavorites],
 	['channels/search', ep___channels_search],
+	['channels/mute/create', ep___channels_mute_create],
+	['channels/mute/delete', ep___channels_mute_delete],
+	['channels/mute/list', ep___channels_mute_list],
 	['charts/active-users', ep___charts_activeUsers],
 	['charts/ap-request', ep___charts_apRequest],
 	['charts/drive', ep___charts_drive],

packages/backend/src/server/api/endpoints/channels/mute/create.ts

@@ -0,0 +1,90 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import type { ChannelsRepository } from '@/models/_.js';
+import { DI } from '@/di-symbols.js';
+import { ApiError } from '@/server/api/error.js';
+import { ChannelMutingService } from '@/core/ChannelMutingService.js';
+
+export const meta = {
+	tags: ['channels', 'mute'],
+
+	requireCredential: true,
+	prohibitMoved: true,
+
+	kind: 'write:channels',
+
+	errors: {
+		noSuchChannel: {
+			message: 'No such Channel.',
+			code: 'NO_SUCH_CHANNEL',
+			id: '7174361e-d58f-31d6-2e7c-6fb830786a3f',
+		},
+
+		alreadyMuting: {
+			message: 'You are already muting that user.',
+			code: 'ALREADY_MUTING_CHANNEL',
+			id: '5a251978-769a-da44-3e89-3931e43bb592',
+		},
+
+		expiresAtIsPast: {
+			message: 'Cannot set past date to "expiresAt".',
+			code: 'EXPIRES_AT_IS_PAST',
+			id: '42b32236-df2c-a45f-fdbf-def67268f749',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		channelId: { type: 'string', format: 'misskey:id' },
+		expiresAt: {
+			type: 'integer',
+			nullable: true,
+			description: 'A Unix Epoch timestamp that must lie in the future. `null` means an indefinite mute.',
+		},
+	},
+	required: ['channelId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		@Inject(DI.channelsRepository)
+		private channelsRepository: ChannelsRepository,
+		private channelMutingService: ChannelMutingService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			// Check if exists the channel
+			const targetChannel = await this.channelsRepository.findOneBy({ id: ps.channelId });
+			if (!targetChannel) {
+				throw new ApiError(meta.errors.noSuchChannel);
+			}
+
+			// Check if already muting
+			const exist = await this.channelMutingService.isMuted({
+				requestUserId: me.id,
+				targetChannelId: targetChannel.id,
+			});
+			if (exist) {
+				throw new ApiError(meta.errors.alreadyMuting);
+			}
+
+			// Check if expiresAt is past
+			if (ps.expiresAt && ps.expiresAt <= Date.now()) {
+				throw new ApiError(meta.errors.expiresAtIsPast);
+			}
+
+			await this.channelMutingService.mute({
+				requestUserId: me.id,
+				targetChannelId: targetChannel.id,
+				expiresAt: ps.expiresAt ? new Date(ps.expiresAt) : null,
+			});
+		});
+	}
+}

packages/backend/src/server/api/endpoints/channels/mute/delete.ts

@@ -0,0 +1,73 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import type { ChannelsRepository } from '@/models/_.js';
+import { DI } from '@/di-symbols.js';
+import { ChannelMutingService } from '@/core/ChannelMutingService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['channels', 'mute'],
+
+	requireCredential: true,
+	prohibitMoved: true,
+
+	kind: 'write:channels',
+
+	errors: {
+		noSuchChannel: {
+			message: 'No such Channel.',
+			code: 'NO_SUCH_CHANNEL',
+			id: 'e7998769-6e94-d9c2-6b8f-94a527314aba',
+		},
+
+		notMuting: {
+			message: 'You are not muting that channel.',
+			code: 'NOT_MUTING_CHANNEL',
+			id: '14d55962-6ea8-d990-1333-d6bef78dc2ab',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		channelId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['channelId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		@Inject(DI.channelsRepository)
+		private channelsRepository: ChannelsRepository,
+		private channelMutingService: ChannelMutingService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			// Check if exists the channel
+			const targetChannel = await this.channelsRepository.findOneBy({ id: ps.channelId });
+			if (!targetChannel) {
+				throw new ApiError(meta.errors.noSuchChannel);
+			}
+
+			// Check if already muting
+			const exist = await this.channelMutingService.isMuted({
+				requestUserId: me.id,
+				targetChannelId: targetChannel.id,
+			});
+			if (exist) {
+				throw new ApiError(meta.errors.notMuting);
+			}
+
+			await this.channelMutingService.unmute({
+				requestUserId: me.id,
+				targetChannelId: targetChannel.id,
+			});
+		});
+	}
+}

packages/backend/src/server/api/endpoints/channels/mute/list.ts

@@ -0,0 +1,49 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { ChannelMutingService } from '@/core/ChannelMutingService.js';
+import { ChannelEntityService } from '@/core/entities/ChannelEntityService.js';
+
+export const meta = {
+	tags: ['channels', 'mute'],
+
+	requireCredential: true,
+	prohibitMoved: true,
+
+	kind: 'read:channels',
+
+	res: {
+		type: 'array',
+		optional: false, nullable: false,
+		items: {
+			type: 'object',
+			optional: false, nullable: false,
+			ref: 'Channel',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {},
+	required: [],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private channelMutingService: ChannelMutingService,
+		private channelEntityService: ChannelEntityService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			const mutings = await this.channelMutingService.list({
+				requestUserId: me.id,
+			});
+			return await this.channelEntityService.packMany(mutings, me);
+		});
+	}
+}

packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts

@@ -19,6 +19,7 @@ import { UserFollowingService } from '@/core/UserFollowingService.js';
 import { MetaService } from '@/core/MetaService.js';
 import { MiLocalUser } from '@/models/User.js';
 import { FanoutTimelineEndpointService } from '@/core/FanoutTimelineEndpointService.js';
+import { ChannelMutingService } from '@/core/ChannelMutingService.js';
 import { ApiError } from '../../error.js';
 
 export const meta = {
@@ -47,7 +48,7 @@ export const meta = {
 		bothWithRepliesAndWithFiles: {
 			message: 'Specifying both withReplies and withFiles is not supported',
 			code: 'BOTH_WITH_REPLIES_AND_WITH_FILES',
-			id: 'dfaa3eb7-8002-4cb7-bcc4-1095df46656f'
+			id: 'dfaa3eb7-8002-4cb7-bcc4-1095df46656f',
 		},
 	},
 } as const;
@@ -87,6 +88,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private cacheService: CacheService,
 		private queryService: QueryService,
 		private userFollowingService: UserFollowingService,
+		private channelMutingService: ChannelMutingService,
 		private metaService: MetaService,
 		private fanoutTimelineEndpointService: FanoutTimelineEndpointService,
 	) {
@@ -152,6 +154,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				useDbFallback: serverSettings.enableFanoutTimelineDbFallback,
 				alwaysIncludeMyNotes: true,
 				excludePureRenotes: !ps.withRenotes,
+				excludeMutedChannels: true,
 				dbFallback: async (untilId, sinceId, limit) => await this.getFromDb({
 					untilId,
 					sinceId,
@@ -188,6 +191,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				followerId: me.id,
 			},
 		});
+		const mutingChannelIds = (followingChannels.length > 0)
+			? await this.channelMutingService.list({ requestUserId: me.id }).then(x => x.map(x => x.id))
+			: [];
 
 		const query = this.queryService.makePaginationQuery(this.notesRepository.createQueryBuilder('note'), ps.sinceId, ps.untilId)
 			.andWhere(new Brackets(qb => {
@@ -217,6 +223,15 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			query.andWhere('note.channelId IS NULL');
 		}
 
+		if (mutingChannelIds.length > 0) {
+			// ミュートしてるチャンネルは含めない
+			query.andWhere(new Brackets(qb => {
+				qb
+					.andWhere('note.channelId NOT IN (:...mutingChannelIds)', { mutingChannelIds })
+					.andWhere('note.renoteChannelId NOT IN (:...mutingChannelIds)', { mutingChannelIds });
+			}));
+		}
+
 		if (!ps.withReplies) {
 			query.andWhere(new Brackets(qb => {
 				qb

packages/backend/src/server/api/endpoints/notes/timeline.ts

@@ -5,7 +5,7 @@
 
 import { Brackets } from 'typeorm';
 import { Inject, Injectable } from '@nestjs/common';
-import type { NotesRepository, ChannelFollowingsRepository } from '@/models/_.js';
+import type { NotesRepository, ChannelFollowingsRepository, ChannelMutingRepository } from '@/models/_.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { QueryService } from '@/core/QueryService.js';
 import ActiveUsersChart from '@/core/chart/charts/active-users.js';
@@ -17,6 +17,7 @@ import { UserFollowingService } from '@/core/UserFollowingService.js';
 import { MiLocalUser } from '@/models/User.js';
 import { MetaService } from '@/core/MetaService.js';
 import { FanoutTimelineEndpointService } from '@/core/FanoutTimelineEndpointService.js';
+import { ChannelMutingService } from '@/core/ChannelMutingService.js';
 
 export const meta = {
 	tags: ['notes'],
@@ -68,6 +69,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private cacheService: CacheService,
 		private fanoutTimelineEndpointService: FanoutTimelineEndpointService,
 		private userFollowingService: UserFollowingService,
+		private channelMutingService: ChannelMutingService,
 		private queryService: QueryService,
 		private metaService: MetaService,
 	) {
@@ -112,6 +114,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				redisTimelines: ps.withFiles ? [`homeTimelineWithFiles:${me.id}`] : [`homeTimeline:${me.id}`],
 				alwaysIncludeMyNotes: true,
 				excludePureRenotes: !ps.withRenotes,
+				excludeMutedChannels: true,
 				noteFilter: note => {
 					if (note.reply && note.reply.visibility === 'followers') {
 						if (!Object.hasOwn(followings, note.reply.userId)) return false;
@@ -146,6 +149,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				followerId: me.id,
 			},
 		});
+		const mutingChannelIds = (followingChannels.length > 0)
+			? await this.channelMutingService.list({ requestUserId: me.id }).then(x => x.map(x => x.id))
+			: [];
 
 		//#region Construct query
 		const query = this.queryService.makePaginationQuery(this.notesRepository.createQueryBuilder('note'), ps.sinceId, ps.untilId)
@@ -163,7 +169,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				qb
 					.where(new Brackets(qb2 => {
 						qb2
-							.where('note.userId IN (:...meOrFolloweeIds)', { meOrFolloweeIds: meOrFolloweeIds })
+							.andWhere('note.userId IN (:...meOrFolloweeIds)', { meOrFolloweeIds: meOrFolloweeIds })
 							.andWhere('note.channelId IS NULL');
 					}))
 					.orWhere('note.channelId IN (:...followingChannelIds)', { followingChannelIds });
@@ -171,9 +177,11 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		} else if (followees.length > 0) {
 			// ユーザーフォローのみ（チャンネルフォローなし）
 			const meOrFolloweeIds = [me.id, ...followees.map(f => f.followeeId)];
-			query
+			query.andWhere(new Brackets(qb => {
+				qb
 					.andWhere('note.channelId IS NULL')
 					.andWhere('note.userId IN (:...meOrFolloweeIds)', { meOrFolloweeIds: meOrFolloweeIds });
+			}));
 		} else if (followingChannels.length > 0) {
 			// チャンネルフォローのみ（ユーザーフォローなし）
 			const followingChannelIds = followingChannels.map(x => x.followeeId);
@@ -184,9 +192,20 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			}));
 		} else {
 			// フォローなし
-			query
+			query.andWhere(new Brackets(qb => {
+				qb
 					.andWhere('note.channelId IS NULL')
 					.andWhere('note.userId = :meId', { meId: me.id });
+			}));
+		}
+
+		if (mutingChannelIds.length > 0) {
+			// ミュートしてるチャンネルは含めない
+			query.andWhere(new Brackets(qb => {
+				qb
+					.andWhere('note.channelId NOT IN (:...mutingChannelIds)', { mutingChannelIds })
+					.andWhere('note.renoteChannelId NOT IN (:...mutingChannelIds)', { mutingChannelIds });
+			}));
 		}
 
 		query.andWhere(new Brackets(qb => {

packages/backend/src/server/api/stream/channels/home-timeline.ts

@@ -8,6 +8,7 @@ import type { Packed } from '@/misc/json-schema.js';
 import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
 import { bindThis } from '@/decorators.js';
 import { isRenotePacked, isQuotePacked } from '@/misc/is-renote.js';
+import { isChannelRelated } from '@/misc/is-channel-related.js';
 import Channel, { type MiChannelService } from '../channel.js';
 
 class HomeTimelineChannel extends Channel {
@@ -43,7 +44,10 @@ class HomeTimelineChannel extends Channel {
 		if (this.withFiles && (note.fileIds == null || note.fileIds.length === 0)) return;
 
 		if (note.channelId) {
-			if (!this.followingChannels.has(note.channelId)) return;
+			// そのチャンネルをフォローしていない or そのチャンネル(リノート・引用リノート含む）はミュートしている
+			if (!this.followingChannels.has(note.channelId) || isChannelRelated(note, this.mutingChannels)) {
+				return;
+			}
 		} else {
 			// その投稿のユーザーをフォローしていなかったら弾く
 			if (!isMe && !Object.hasOwn(this.following, note.userId)) return;

packages/backend/src/server/api/stream/channels/hybrid-timeline.ts

@@ -10,6 +10,7 @@ import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
 import { bindThis } from '@/decorators.js';
 import { RoleService } from '@/core/RoleService.js';
 import { isRenotePacked, isQuotePacked } from '@/misc/is-renote.js';
+import { isChannelRelated } from '@/misc/is-channel-related.js';
 import Channel, { type MiChannelService } from '../channel.js';
 
 class HybridTimelineChannel extends Channel {
@@ -55,12 +56,14 @@ class HybridTimelineChannel extends Channel {
 		// チャンネルの投稿ではなく、自分自身の投稿 または
 		// チャンネルの投稿ではなく、その投稿のユーザーをフォローしている または
 		// チャンネルの投稿ではなく、全体公開のローカルの投稿 または
-		// フォローしているチャンネルの投稿 の場合だけ
+		// フォローしているチャンネルの投稿 または
+		// ミュートしていないチャンネルの投稿(リノート・引用リノートもチェック対象）の場合だけ
 		if (!(
 			(note.channelId == null && isMe) ||
 			(note.channelId == null && Object.hasOwn(this.following, note.userId)) ||
 			(note.channelId == null && (note.user.host == null && note.visibility === 'public')) ||
-			(note.channelId != null && this.followingChannels.has(note.channelId))
+			(note.channelId != null && this.followingChannels.has(note.channelId)) ||
+			(note.channelId != null && !isChannelRelated(note, this.mutingChannels))
 		)) return;
 
 		if (note.visibility === 'followers') {
@@ -82,7 +85,10 @@ class HybridTimelineChannel extends Channel {
 			}
 		}
 
-		if (isRenotePacked(note) && !isQuotePacked(note) && !this.withRenotes) return;
+		// 純粋なリノート（引用リノートでないリノート）の場合
+		if (isRenotePacked(note) && !isQuotePacked(note) && !this.withRenotes) {
+			return;
+		}
 
 		if (this.user && note.renoteId && !note.text) {
 			if (note.renote && Object.keys(note.renote.reactions).length > 0) {

packages/backend/test/unit/NoteCreateService.ts

@@ -60,6 +60,7 @@ describe('NoteCreateService', () => {
 			replyUserHost: null,
 			renoteUserId: null,
 			renoteUserHost: null,
+			renoteChannelId: null,
 		};
 
 		const poll: IPoll = {

packages/backend/test/unit/misc/is-renote.ts

@@ -43,6 +43,7 @@ const base: MiNote = {
 	replyUserHost: null,
 	renoteUserId: null,
 	renoteUserHost: null,
+	renoteChannelId: null,
 };
 
 describe('misc:is-renote', () => {