feat(chat): 单向聊天的历史消息获取

core/routers/chat/routes.py

@@ -24,7 +24,7 @@ from core.base.exceptions import WebsocketTooManyRequests
 
 from . import schema
 from .handlers import socket_manager
-from .services import websocket_callback, get_user_active_direct_chats, get_unread_messages_per_chat
+from .services import websocket_callback, get_user_active_direct_chats, get_unread_messages_per_chat, get_chat
 
 logger = logging.getLogger(__name__)
 
@@ -95,15 +95,10 @@ async def get_single_chat_messages(
         page_size: int = Query(default=15, gt=0, le=200),
         last_read_message_id: int = Query(default=0, ge=0),
 ):
-    db_crud = CRUD(db_session, Chat)
-    chat: Chat | None = await db_crud.get(filters={'guid': chat_guid, 'is_deleted': False})
+    chat: Chat | None = await get_chat(chat_guid, login_user, db_session, is_query_messages=True)
     if not chat:
         raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail='您访问的聊天不存在')
 
-    chat_user_ids = [user.user_id for user in await chat.awaitable_attrs.users]
-    if login_user.user_id not in chat_user_ids:
-        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail='您无权访问此聊天')
-
     # 组装查询条件
     conditions = and_(
         Message.chat_id == chat.id,