Update app.py

app.py

@@ -131,7 +131,7 @@ def load_data_from_webdav():
         if response.status_code == 200:
             data = json.loads(response.text)
 
-            chatHistories = data['chatHistories']
+            chatHistories = data.get('chatHistories', {})
             GROUP_SETTINGS = {int(k): v for k, v in data.get('GROUP_SETTINGS', {}).items()}
             USER_SETTINGS = {int(k): v for k, v in data.get('USER_SETTINGS', {}).items()}
             USER_LAST_ACTIVE = {int(k): datetime.fromisoformat(v) for k, v in data.get('USER_LAST_ACTIVE', {}).items()}
@@ -402,7 +402,7 @@ async def processAiMessage(chatId, userMessage, fromUserId, message_id, fromUser
             return
 
     history = chatHistories.get(chatId, [])
-    
+
     if isGroupChat:
       # 从群组设置获取温度和提示词
       userTemp = GROUP_SETTINGS.get(chatId, {}).get('temperature', DEFAULT_TEMP)
@@ -411,7 +411,7 @@ async def processAiMessage(chatId, userMessage, fromUserId, message_id, fromUser
        # 从用户设置获取温度和提示词
       userTemp = USER_SETTINGS.get(fromUserId, {}).get('temperature', DEFAULT_TEMP)
       userPromptIndex = USER_SETTINGS.get(fromUserId, {}).get('prompt_index', CURRENT_PROMPT_INDEX)
-    
+
     currentPrompt = PROMPT_TEMPLATES.get(userPromptIndex, "")
 
     user_last_active = USER_LAST_ACTIVE.get(fromUserId, None)
@@ -435,6 +435,11 @@ async def processAiMessage(chatId, userMessage, fromUserId, message_id, fromUser
   - 群组最后活跃时间: {group_info['last_active'].strftime("%Y-%m-%d %H:%M:%S") if group_info and group_info.get('last_active') else "未知"}
   - 群组活跃用户数: {len(group_active_users) if group_active_users else "未知"}
 """
+    
+    if chatId not in chatHistories:
+        chatHistories[chatId] = []
+    history = chatHistories[chatId]
+        
     history.append({'role': 'user', 'content': userMessage})
 
     if len(history) > MAX_HISTORY_LENGTH:
@@ -602,7 +607,6 @@ async def banUser(chatId, userId):
 async def unbanUser(chatId, userId):
     if userId in BANNED_USERS:
         del BANNED_USERS[userId]
-        
         await sendTelegramMessage(chatId, f"用户 {userId} 已被解禁。")
         print(f"用户 {userId} 在群组 {chatId} 中被解禁。")