enhance: モデレーターがチャットルームの内容を確認・削除できるように

4 files changed, 51 insertions, 4 deletions

diff --git a/packages/backend/src/core/ChatService.ts b/packages/backend/src/core/ChatService.ts
index 4c010b2ef7..35819a4bc2 100644
--- a/packages/backend/src/core/ChatService.ts
+++ b/packages/backend/src/core/ChatService.ts
@@ -27,6 +27,7 @@ import { sqlLikeEscape } from '@/misc/sql-like-escape.js';
 import { CustomEmojiService } from '@/core/CustomEmojiService.js';
 import { emojiRegex } from '@/misc/emoji-regex.js';
 import { NotificationService } from '@/core/NotificationService.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
 
 const MAX_ROOM_MEMBERS = 30;
 const MAX_REACTIONS_PER_MESSAGE = 100;
@@ -75,6 +76,7 @@ export class ChatService {
 		private roleService: RoleService,
 		private userFollowingService: UserFollowingService,
 		private customEmojiService: CustomEmojiService,
+		private moderationLogService: ModerationLogService,
 	) {
 	}
 
@@ -286,6 +288,20 @@ export class ChatService {
 	}
 
 	@bindThis
+	public async hasPermissionToViewRoomTimeline(meId: MiUser['id'], room: MiChatRoom) {
+		if (await this.isRoomMember(room, meId)) {
+			return true;
+		} else {
+			const iAmModerator = await this.roleService.isModerator({ id: meId });
+			if (iAmModerator) {
+				return true;
+			}
+
+			return false;
+		}
+	}
+
+	@bindThis
 	public async deleteMessage(message: MiChatMessage) {
 		await this.chatMessagesRepository.delete(message.id);
 
@@ -493,8 +509,29 @@ export class ChatService {
 	}
 
 	@bindThis
-	public async deleteRoom(room: MiChatRoom) {
+	public async hasPermissionToDeleteRoom(meId: MiUser['id'], room: MiChatRoom) {
+		if (room.ownerId === meId) {
+			return true;
+		}
+
+		const iAmModerator = await this.roleService.isModerator({ id: meId });
+		if (iAmModerator) {
+			return true;
+		}
+
+		return false;
+	}
+
+	@bindThis
+	public async deleteRoom(room: MiChatRoom, moderator?: MiUser) {
 		await this.chatRoomsRepository.delete(room.id);
+
+		if (moderator) {
+			this.moderationLogService.log(moderator, 'deleteChatRoom', {
+				roomId: room.id,
+				room: room,
+			});
+		}
 	}
 
 	@bindThis
diff --git a/packages/backend/src/server/api/endpoints/chat/messages/room-timeline.ts b/packages/backend/src/server/api/endpoints/chat/messages/room-timeline.ts
index ccc0030403..7aef35db04 100644
--- a/packages/backend/src/server/api/endpoints/chat/messages/room-timeline.ts
+++ b/packages/backend/src/server/api/endpoints/chat/messages/room-timeline.ts
@@ -59,7 +59,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				throw new ApiError(meta.errors.noSuchRoom);
 			}
 
-			if (!(await this.chatService.isRoomMember(room, me.id))) {
+			if (!await this.chatService.hasPermissionToViewRoomTimeline(me.id, room)) {
 				throw new ApiError(meta.errors.noSuchRoom);
 			}
 
diff --git a/packages/backend/src/server/api/endpoints/chat/rooms/delete.ts b/packages/backend/src/server/api/endpoints/chat/rooms/delete.ts
index 2ef0a778f1..1d77a06dd8 100644
--- a/packages/backend/src/server/api/endpoints/chat/rooms/delete.ts
+++ b/packages/backend/src/server/api/endpoints/chat/rooms/delete.ts
@@ -42,11 +42,16 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private chatService: ChatService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			const room = await this.chatService.findMyRoomById(me.id, ps.roomId);
+			const room = await this.chatService.findRoomById(ps.roomId);
 			if (room == null) {
 				throw new ApiError(meta.errors.noSuchRoom);
 			}
-			await this.chatService.deleteRoom(room);
+
+			if (!await this.chatService.hasPermissionToDeleteRoom(me.id, room)) {
+				throw new ApiError(meta.errors.noSuchRoom);
+			}
+
+			await this.chatService.deleteRoom(room, me);
 		});
 	}
 }
diff --git a/packages/backend/src/types.ts b/packages/backend/src/types.ts
index 4e215c93c6..5d5f1e3b71 100644
--- a/packages/backend/src/types.ts
+++ b/packages/backend/src/types.ts
@@ -124,6 +124,7 @@ export const moderationLogTypes = [
 	'deletePage',
 	'deleteFlash',
 	'deleteGalleryPost',
+	'deleteChatRoom',
 	'updateProxyAccountDescription',
 ] as const;
 
@@ -377,6 +378,10 @@ export type ModerationLogPayloads = {
 		postUserUsername: string;
 		post: any;
 	};
+	deleteChatRoom: {
+		roomId: string;
+		room: any;
+	};
 	updateProxyAccountDescription: {
 		before: string | null;
 		after: string | null;