wip

packages/backend/src/core/ChatService.ts

@@ -16,13 +16,15 @@ import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
 import { ApRendererService } from '@/core/activitypub/ApRendererService.js';
 import { PushNotificationService } from '@/core/PushNotificationService.js';
 import { bindThis } from '@/decorators.js';
-import type { ChatApprovalsRepository, ChatMessagesRepository, ChatRoomInvitationsRepository, ChatRoomMembershipsRepository, ChatRoomsRepository, MiChatMessage, MiChatRoom, MiDriveFile, MiUser, MutingsRepository, UsersRepository } from '@/models/_.js';
+import type { ChatApprovalsRepository, ChatMessagesRepository, ChatRoomInvitationsRepository, ChatRoomMembershipsRepository, ChatRoomsRepository, MiChatMessage, MiChatRoom, MiChatRoomMembership, MiDriveFile, MiUser, MutingsRepository, UsersRepository } from '@/models/_.js';
 import { UserBlockingService } from '@/core/UserBlockingService.js';
 import { QueryService } from '@/core/QueryService.js';
 import { RoleService } from '@/core/RoleService.js';
 import { UserFollowingService } from '@/core/UserFollowingService.js';
 import { MiChatRoomInvitation } from '@/models/ChatRoomInvitation.js';
 
+const MAX_ROOM_MEMBERS = 30;
+
 @Injectable()
 export class ChatService {
 	constructor(
@@ -463,6 +465,22 @@ export class ChatService {
 		await this.chatRoomsRepository.delete(room.id);
 	}
 
+	@bindThis
+	public async findMyRoomById(ownerId: MiUser['id'], roomId: MiChatRoom['id']) {
+		return this.chatRoomsRepository.findOneBy({ id: roomId, ownerId: ownerId });
+	}
+
+	@bindThis
+	public async findRoomById(roomId: MiChatRoom['id']) {
+		return this.chatRoomsRepository.findOneBy({ id: roomId });
+	}
+
+	@bindThis
+	public async isRoomMember(roomId: MiChatRoom['id'], userId: MiUser['id']) {
+		const membership = await this.chatRoomMembershipsRepository.findOneBy({ roomId, userId });
+		return membership != null;
+	}
+
 	@bindThis
 	public async createRoomInvitation(inviterId: MiUser['id'], roomId: MiChatRoom['id'], inviteeId: MiUser['id']) {
 		if (inviterId === inviteeId) {
@@ -471,6 +489,16 @@ export class ChatService {
 
 		const room = await this.chatRoomsRepository.findOneByOrFail({ id: roomId, ownerId: inviterId });
 
+		const existingInvitation = await this.chatRoomInvitationsRepository.findOneBy({ roomId, userId: inviteeId });
+		if (existingInvitation) {
+			throw new Error('already invited');
+		}
+
+		const membershipsCount = await this.chatRoomMembershipsRepository.countBy({ roomId });
+		if (membershipsCount >= MAX_ROOM_MEMBERS) {
+			throw new Error('room is full');
+		}
+
 		// TODO: cehck block
 
 		const invitation = {
@@ -483,4 +511,80 @@ export class ChatService {
 
 		return created;
 	}
+
+	@bindThis
+	public async getOwnedRoomsWithPagination(ownerId: MiUser['id'], limit: number, sinceId?: MiChatRoom['id'] | null, untilId?: MiChatRoom['id'] | null) {
+		const query = this.queryService.makePaginationQuery(this.chatRoomsRepository.createQueryBuilder('room'), sinceId, untilId)
+			.where('room.ownerId = :ownerId', { ownerId });
+
+		const rooms = await query.take(limit).getMany();
+
+		return rooms;
+	}
+
+	@bindThis
+	public async getReceivedRoomInvitationsWithPagination(userId: MiUser['id'], limit: number, sinceId?: MiChatRoomInvitation['id'] | null, untilId?: MiChatRoomInvitation['id'] | null) {
+		const query = this.queryService.makePaginationQuery(this.chatRoomInvitationsRepository.createQueryBuilder('invitation'), sinceId, untilId)
+			.where('invitation.userId = :userId', { userId });
+
+		const invitations = await query.take(limit).getMany();
+
+		return invitations;
+	}
+
+	@bindThis
+	public async joinToRoom(userId: MiUser['id'], roomId: MiChatRoom['id']) {
+		const invitation = await this.chatRoomInvitationsRepository.findOneByOrFail({ roomId, userId });
+
+		const membershipsCount = await this.chatRoomMembershipsRepository.countBy({ roomId });
+		if (membershipsCount >= MAX_ROOM_MEMBERS) {
+			throw new Error('room is full');
+		}
+
+		const membership = {
+			id: this.idService.gen(),
+			roomId: roomId,
+			userId: userId,
+		} satisfies Partial<MiChatRoomMembership>;
+
+		// TODO: transaction
+		await this.chatRoomMembershipsRepository.insertOne(membership);
+		await this.chatRoomInvitationsRepository.delete(invitation.id);
+	}
+
+	@bindThis
+	public async rejectRoomInvitation(userId: MiUser['id'], roomId: MiChatRoom['id']) {
+		const invitation = await this.chatRoomInvitationsRepository.findOneByOrFail({ roomId, userId });
+		await this.chatRoomInvitationsRepository.delete(invitation.id);
+	}
+
+	@bindThis
+	public async leaveRoom(userId: MiUser['id'], roomId: MiChatRoom['id']) {
+		const membership = await this.chatRoomMembershipsRepository.findOneByOrFail({ roomId, userId });
+		await this.chatRoomMembershipsRepository.delete(membership.id);
+	}
+
+	@bindThis
+	public async updateRoom(room: MiChatRoom, params: {
+		name?: string;
+	}): Promise<MiChatRoom> {
+		return this.chatRoomsRepository.createQueryBuilder().update()
+			.set(params)
+			.where('id = :id', { id: room.id })
+			.returning('*')
+			.execute()
+			.then((response) => {
+				return response.raw[0];
+			});
+	}
+
+	@bindThis
+	public async getRoomMembershipsWithPagination(roomId: MiChatRoom['id'], limit: number, sinceId?: MiChatRoomMembership['id'] | null, untilId?: MiChatRoomMembership['id'] | null) {
+		const query = this.queryService.makePaginationQuery(this.chatRoomMembershipsRepository.createQueryBuilder('membership'), sinceId, untilId)
+			.where('membership.roomId = :roomId', { roomId });
+
+		const memberships = await query.take(limit).getMany();
+
+		return memberships;
+	}
 }

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

@@ -5,7 +5,7 @@
 
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
-import type { MiUser, ChatMessagesRepository, MiChatMessage, ChatRoomsRepository, MiChatRoom } from '@/models/_.js';
+import type { MiUser, ChatMessagesRepository, MiChatMessage, ChatRoomsRepository, MiChatRoom, MiChatRoomInvitation, ChatRoomInvitationsRepository, MiChatRoomMembership, ChatRoomMembershipsRepository } from '@/models/_.js';
 import { awaitAll } from '@/misc/prelude/await-all.js';
 import type { Packed } from '@/misc/json-schema.js';
 import type { } from '@/models/Blocking.js';
@@ -23,6 +23,12 @@ export class ChatEntityService {
 		@Inject(DI.chatRoomsRepository)
 		private chatRoomsRepository: ChatRoomsRepository,
 
+		@Inject(DI.chatRoomInvitationsRepository)
+		private chatRoomInvitationsRepository: ChatRoomInvitationsRepository,
+
+		@Inject(DI.chatRoomMembershipsRepository)
+		private chatRoomMembershipsRepository: ChatRoomMembershipsRepository,
+
 		private userEntityService: UserEntityService,
 		private driveFileEntityService: DriveFileEntityService,
 		private idService: IdService,
@@ -206,4 +212,72 @@ export class ChatEntityService {
 
 		return Promise.all(rooms.map(room => this.packRoom(room, me, { _hint_: { packedOwners } })));
 	}
+
+	@bindThis
+	public async packRoomInvitation(
+		src: MiChatRoomInvitation['id'] | MiChatRoomInvitation,
+		me: { id: MiUser['id'] },
+		options?: {
+			_hint_?: {
+				packedRooms: Map<MiChatRoomInvitation['roomId'], Packed<'ChatRoom'>>;
+				packedUsers: Map<MiChatRoomInvitation['id'], Packed<'UserLite'>>;
+			};
+		},
+	): Promise<Packed<'ChatRoomInvitation'>> {
+		const invitation = typeof src === 'object' ? src : await this.chatRoomInvitationsRepository.findOneByOrFail({ id: src });
+
+		return {
+			id: invitation.id,
+			createdAt: this.idService.parse(invitation.id).date.toISOString(),
+			roomId: invitation.roomId,
+			room: options?._hint_?.packedRooms.get(invitation.roomId) ?? await this.packRoom(invitation.room ?? invitation.roomId, me),
+			userId: invitation.userId,
+			user: options?._hint_?.packedUsers.get(invitation.userId) ?? await this.userEntityService.pack(invitation.user ?? invitation.userId, me),
+		};
+	}
+
+	@bindThis
+	public async packRoomInvitations(
+		invitations: MiChatRoomInvitation[],
+		me: { id: MiUser['id'] },
+	) {
+		if (invitations.length === 0) return [];
+
+		return Promise.all(invitations.map(invitation => this.packRoomInvitation(invitation, me)));
+	}
+
+	@bindThis
+	public async packRoomMembership(
+		src: MiChatRoomMembership['id'] | MiChatRoomMembership,
+		me: { id: MiUser['id'] },
+		options?: {
+			_hint_?: {
+				packedUsers: Map<MiChatRoomMembership['id'], Packed<'UserLite'>>;
+			};
+		},
+	): Promise<Packed<'ChatRoomMembership'>> {
+		const membership = typeof src === 'object' ? src : await this.chatRoomMembershipsRepository.findOneByOrFail({ id: src });
+
+		return {
+			id: membership.id,
+			createdAt: this.idService.parse(membership.id).date.toISOString(),
+			userId: membership.userId,
+			user: options?._hint_?.packedUsers.get(membership.userId) ?? await this.userEntityService.pack(membership.user ?? membership.userId, me),
+		};
+	}
+
+	@bindThis
+	public async packRoomMemberships(
+		memberships: MiChatRoomMembership[],
+		me: { id: MiUser['id'] },
+	) {
+		if (memberships.length === 0) return [];
+
+		const users = memberships.map(x => x.user ?? x.userId);
+
+		const packedUsers = await this.userEntityService.packMany(users, me)
+			.then(users => new Map(users.map(u => [u.id, u])));
+
+		return Promise.all(memberships.map(membership => this.packRoomMembership(membership, me, { _hint_: { packedUsers } })));
+	}
 }

packages/backend/src/misc/json-schema.ts

@@ -65,6 +65,8 @@ import { packedSystemWebhookSchema } from '@/models/json-schema/system-webhook.j
 import { packedAbuseReportNotificationRecipientSchema } from '@/models/json-schema/abuse-report-notification-recipient.js';
 import { packedChatMessageSchema, packedChatMessageLiteSchema } from '@/models/json-schema/chat-message.js';
 import { packedChatRoomSchema } from '@/models/json-schema/chat-room.js';
+import { packedChatRoomInvitationSchema } from '@/models/json-schema/chat-room-invitation.js';
+import { packedChatRoomMembershipSchema } from '@/models/json-schema/chat-room-membership.js';
 
 export const refs = {
 	UserLite: packedUserLiteSchema,
@@ -125,6 +127,8 @@ export const refs = {
 	ChatMessage: packedChatMessageSchema,
 	ChatMessageLite: packedChatMessageLiteSchema,
 	ChatRoom: packedChatRoomSchema,
+	ChatRoomInvitation: packedChatRoomInvitationSchema,
+	ChatRoomMembership: packedChatRoomMembershipSchema,
 };
 
 export type Packed<x extends keyof typeof refs> = SchemaType<typeof refs[x]>;

packages/backend/src/models/json-schema/chat-room-invitation.ts

@@ -0,0 +1,37 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+export const packedChatRoomInvitationSchema = {
+	type: 'object',
+	properties: {
+		id: {
+			type: 'string',
+			optional: false, nullable: false,
+		},
+		createdAt: {
+			type: 'string',
+			format: 'date-time',
+			optional: false, nullable: false,
+		},
+		userId: {
+			type: 'string',
+			optional: false, nullable: false,
+		},
+		user: {
+			type: 'object',
+			optional: false, nullable: false,
+			ref: 'UserLite',
+		},
+		roomId: {
+			type: 'string',
+			optional: false, nullable: false,
+		},
+		room: {
+			type: 'object',
+			optional: false, nullable: false,
+			ref: 'ChatRoom',
+		},
+	},
+} as const;

packages/backend/src/models/json-schema/chat-room-membership.ts

@@ -0,0 +1,28 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+export const packedChatRoomMembershipSchema = {
+	type: 'object',
+	properties: {
+		id: {
+			type: 'string',
+			optional: false, nullable: false,
+		},
+		createdAt: {
+			type: 'string',
+			format: 'date-time',
+			optional: false, nullable: false,
+		},
+		userId: {
+			type: 'string',
+			optional: false, nullable: false,
+		},
+		user: {
+			type: 'object',
+			optional: false, nullable: false,
+			ref: 'UserLite',
+		},
+	},
+} as const;

packages/backend/src/server/api/endpoint-list.ts

@@ -400,5 +400,16 @@ export * as 'chat/messages/create' from './endpoints/chat/messages/create.js';
 export * as 'chat/messages/delete' from './endpoints/chat/messages/delete.js';
 export * as 'chat/messages/show' from './endpoints/chat/messages/show.js';
 export * as 'chat/messages/timeline' from './endpoints/chat/messages/timeline.js';
+export * as 'chat/rooms/create' from './endpoints/chat/rooms/create.js';
+export * as 'chat/rooms/delete' from './endpoints/chat/rooms/delete.js';
+export * as 'chat/rooms/join' from './endpoints/chat/rooms/join.js';
+export * as 'chat/rooms/leave' from './endpoints/chat/rooms/leave.js';
+export * as 'chat/rooms/show' from './endpoints/chat/rooms/show.js';
+export * as 'chat/rooms/owned' from './endpoints/chat/rooms/owned.js';
+export * as 'chat/rooms/update' from './endpoints/chat/rooms/update.js';
+export * as 'chat/rooms/members' from './endpoints/chat/rooms/members.js';
+export * as 'chat/rooms/invitations/create' from './endpoints/chat/rooms/invitations/create.js';
+export * as 'chat/rooms/invitations/reject' from './endpoints/chat/rooms/invitations/reject.js';
+export * as 'chat/rooms/invitations/inbox' from './endpoints/chat/rooms/invitations/inbox.js';
 export * as 'chat/history' from './endpoints/chat/history.js';
 export * as 'v2/admin/emoji/list' from './endpoints/v2/admin/emoji/list.js';

packages/backend/src/server/api/endpoints/chat/messages/delete.ts

@@ -6,9 +6,7 @@
 import { Inject, Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { DI } from '@/di-symbols.js';
-import { GetterService } from '@/server/api/GetterService.js';
 import { ChatService } from '@/core/ChatService.js';
-import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
 import { ApiError } from '@/server/api/error.js';
 
 export const meta = {

packages/backend/src/server/api/endpoints/chat/rooms/delete.ts

@@ -0,0 +1,52 @@
+/*
+ * 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 { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'write:chat',
+
+	res: {
+	},
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: 'd4e3753d-97bf-4a19-ab8e-21080fbc0f4b',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		roomId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['roomId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			const room = await this.chatService.findMyRoomById(me.id, ps.roomId);
+			if (room == null) {
+				throw new ApiError(meta.errors.noSuchRoom);
+			}
+			await this.chatService.deleteRoom(room);
+		});
+	}
+}

packages/backend/src/server/api/endpoints/chat/rooms/invitations/create.ts

@@ -0,0 +1,68 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import ms from 'ms';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { ApiError } from '@/server/api/error.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+	requiredRolePolicy: 'canChat',
+
+	prohibitMoved: true,
+
+	kind: 'write:chat',
+
+	limit: {
+		duration: ms('1day'),
+		max: 50,
+	},
+
+	res: {
+		type: 'object',
+		optional: false, nullable: false,
+		ref: 'ChatRoomInvitation',
+	},
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: '916f9507-49ba-4e90-b57f-1fd4deaa47a5',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		roomId: { type: 'string', format: 'misskey:id' },
+		userId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['roomId', 'userId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+		private chatEntityService: ChatEntityService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			const room = await this.chatService.findMyRoomById(me.id, ps.roomId);
+			if (room == null) {
+				throw new ApiError(meta.errors.noSuchRoom);
+			}
+			const invitation = await this.chatService.createRoomInvitation(ps.userId, room.id, ps.userId);
+			return await this.chatEntityService.packRoomInvitation(invitation, me);
+		});
+	}
+}

packages/backend/src/server/api/endpoints/chat/rooms/invitations/inbox.ts

@@ -0,0 +1,54 @@
+/*
+ * 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 { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'read:chat',
+
+	res: {
+		type: 'array',
+		optional: false, nullable: false,
+		items: {
+			type: 'object',
+			optional: false, nullable: false,
+			ref: 'ChatRoomInvitation',
+		},
+	},
+
+	errors: {
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 30 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+	},
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatEntityService: ChatEntityService,
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			const invitations = await this.chatService.getReceivedRoomInvitationsWithPagination(me.id, ps.limit, ps.sinceId, ps.untilId);
+			return this.chatEntityService.packRoomInvitations(invitations, me);
+		});
+	}
+}

packages/backend/src/server/api/endpoints/chat/rooms/invitations/reject.ts

@@ -0,0 +1,48 @@
+/*
+ * 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 { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'write:chat',
+
+	res: {
+	},
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: '5130557e-5a11-4cfb-9cc5-fe60cda5de0d',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		roomId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['roomId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.rejectRoomInvitation(me.id, ps.roomId);
+		});
+	}
+}

packages/backend/src/server/api/endpoints/chat/rooms/join.ts

@@ -0,0 +1,48 @@
+/*
+ * 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 { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'write:chat',
+
+	res: {
+	},
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: '84416476-5ce8-4a2c-b568-9569f1b10733',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		roomId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['roomId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.joinToRoom(me.id, ps.roomId);
+		});
+	}
+}

packages/backend/src/server/api/endpoints/chat/rooms/leave.ts

@@ -0,0 +1,48 @@
+/*
+ * 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 { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'write:chat',
+
+	res: {
+	},
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: 'cb7f3179-50e8-4389-8c30-dbe2650a67c9',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		roomId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['roomId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.chatService.leaveRoom(me.id, ps.roomId);
+		});
+	}
+}

packages/backend/src/server/api/endpoints/chat/rooms/members.ts

@@ -0,0 +1,71 @@
+/*
+ * 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 { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ApiError } from '@/server/api/error.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'write:chat',
+
+	res: {
+		type: 'array',
+		optional: false, nullable: false,
+		items: {
+			type: 'object',
+			optional: false, nullable: false,
+			ref: 'ChatRoomMembership',
+		},
+	},
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: '7b9fe84c-eafc-4d21-bf89-485458ed2c18',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		roomId: { type: 'string', format: 'misskey:id' },
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 30 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['roomId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+		private chatEntityService: ChatEntityService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			const room = await this.chatService.findRoomById(ps.roomId);
+			if (room == null) {
+				throw new ApiError(meta.errors.noSuchRoom);
+			}
+
+			if (!(await this.chatService.isRoomMember(room.id, me.id)) && room.ownerId !== me.id) {
+				throw new ApiError(meta.errors.noSuchRoom);
+			}
+
+			const memberships = await this.chatService.getRoomMembershipsWithPagination(room.id, ps.limit, ps.sinceId, ps.untilId);
+
+			return this.chatEntityService.packRoomMemberships(memberships, me);
+		});
+	}
+}

packages/backend/src/server/api/endpoints/chat/rooms/owned.ts

@@ -0,0 +1,54 @@
+/*
+ * 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 { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+import { ApiError } from '@/server/api/error.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'read:chat',
+
+	res: {
+		type: 'array',
+		optional: false, nullable: false,
+		items: {
+			type: 'object',
+			optional: false, nullable: false,
+			ref: 'ChatRoom',
+		},
+	},
+
+	errors: {
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 30 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+	},
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatEntityService: ChatEntityService,
+		private chatService: ChatService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			const rooms = await this.chatService.getOwnedRoomsWithPagination(me.id, ps.limit, ps.sinceId, ps.untilId);
+			return this.chatEntityService.packRooms(rooms, me);
+		});
+	}
+}

packages/backend/src/server/api/endpoints/chat/rooms/show.ts

@@ -0,0 +1,58 @@
+/*
+ * 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 { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ApiError } from '@/server/api/error.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'read:chat',
+
+	res: {
+		type: 'object',
+		optional: false, nullable: false,
+		ref: 'ChatRoom',
+	},
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: '857ae02f-8759-4d20-9adb-6e95fffe4fd7',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		roomId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['roomId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+		private chatEntityService: ChatEntityService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			const room = await this.chatService.findRoomById(ps.roomId);
+			if (room == null) {
+				throw new ApiError(meta.errors.noSuchRoom);
+			}
+
+			return this.chatEntityService.packRoom(room, me);
+		});
+	}
+}

packages/backend/src/server/api/endpoints/chat/rooms/update.ts

@@ -0,0 +1,63 @@
+/*
+ * 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 { DI } from '@/di-symbols.js';
+import { ChatService } from '@/core/ChatService.js';
+import { ApiError } from '@/server/api/error.js';
+import { ChatEntityService } from '@/core/entities/ChatEntityService.js';
+
+export const meta = {
+	tags: ['chat'],
+
+	requireCredential: true,
+
+	kind: 'write:chat',
+
+	res: {
+		type: 'object',
+		optional: false, nullable: false,
+		ref: 'ChatRoom',
+	},
+
+	errors: {
+		noSuchRoom: {
+			message: 'No such room.',
+			code: 'NO_SUCH_ROOM',
+			id: 'fcdb0f92-bda6-47f9-bd05-343e0e020932',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		roomId: { type: 'string', format: 'misskey:id' },
+		name: { type: 'string', maxLength: 256 },
+	},
+	required: ['roomId'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private chatService: ChatService,
+		private chatEntityService: ChatEntityService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			const room = await this.chatService.findMyRoomById(me.id, ps.roomId);
+			if (room == null) {
+				throw new ApiError(meta.errors.noSuchRoom);
+			}
+
+			const updated = await this.chatService.updateRoom(room, {
+				name: ps.name,
+			});
+
+			return this.chatEntityService.packRoom(updated, me);
+		});
+	}
+}