增加mcp调用超时检测逻辑

main/xiaozhi-server/core/mcp/MCPClient.py

@@ -1,4 +1,4 @@
-import asyncio
+from datetime import timedelta
 from typing import Optional
 from contextlib import AsyncExitStack
 import os, shutil
@@ -26,8 +26,10 @@ class MCPClient:
             if self.config["command"] == "npx"
             else self.config["command"]
         )
-
-        env={**os.environ, **self.config["env"]}
+        
+        env={**os.environ}
+        if self.config.get("env"):
+            env.update(self.config["env"])
         
         server_params = StdioServerParameters(
             command=command,
@@ -37,7 +39,8 @@ class MCPClient:
         
         stdio_transport = await self.exit_stack.enter_async_context(stdio_client(server_params))
         self.stdio, self.write = stdio_transport
-        self.session = await self.exit_stack.enter_async_context(ClientSession(self.stdio, self.write))
+        time_out_delta =  timedelta(seconds=10)
+        self.session = await self.exit_stack.enter_async_context(ClientSession(read_stream=self.stdio, write_stream=self.write, read_timeout_seconds=time_out_delta))
         
         await self.session.initialize()
         
@@ -61,7 +64,21 @@ class MCPClient:
     
     async def call_tool(self, tool_name: str, tool_args: dict):
         self.logger.bind(tag=TAG).info(f"MCPClient Calling tool {tool_name} with args: {tool_args}")
-        response = await self.session.call_tool(tool_name, tool_args)
+        try:
+            response = await self.session.call_tool(tool_name, tool_args)
+        except Exception as e:
+            self.logger.bind(tag=TAG).error(f"Error calling tool {tool_name}: {e}")
+            from types import SimpleNamespace
+            error_content = SimpleNamespace(
+                type='text',
+                text=f"Error calling tool {tool_name}: {e}"
+            )
+            error_response = SimpleNamespace(
+                content=[error_content],
+                isError=True
+            )
+            return error_response
+        self.logger.bind(tag=TAG).info(f"MCPClient Response from tool {tool_name}: {response}")
         return response
 
     async def cleanup(self):

main/xiaozhi-server/core/mcp/manager.py

@@ -1,5 +1,5 @@
 """MCP服务管理器"""
-import json
+import os, json
 from typing import Dict, Any, List
 from .MCPClient import MCPClient
 from config.logger import setup_logging
@@ -16,9 +16,12 @@ class MCPManager:
         初始化MCP管理器
         """
         self.conn = conn
-        self.config_path = get_project_dir() + 'data/.mcp_server_settings.json'
-        self.client: Dict[str, MCPClient] = {}
         self.logger = setup_logging()
+        self.config_path = get_project_dir() + 'data/.mcp_server_settings.json'
+        if os.path.exists(self.config_path) == False:
+            self.config_path = ""
+            self.logger.bind(tag=TAG).warning(f"请检查mcp服务配置文件：data/.mcp_server_settings.json")
+        self.client: Dict[str, MCPClient] = {}
         self.tools = []
 
     def load_config(self) -> Dict[str, Any]:
@@ -26,6 +29,9 @@ class MCPManager:
         Returns:
             Dict[str, Any]: 服务配置字典
         """
+        if len(self.config_path) == 0:
+            return {}
+        
         try:
             with open(self.config_path, 'r', encoding='utf-8') as f:
                 config = json.load(f)