将消息判断前置

plugins/group_member_change/main.py

@@ -58,6 +58,9 @@ class GroupMemberChangePlugin(MessagePluginInterface):
 
     def can_process(self, message: Dict[str, Any]) -> bool:
         """检查是否可以处理该消息"""
+        content = message.get("content")
+        if not content or "<sysmsg" not in content:
+            return False
         return True
 
     async def process_message(self, message: Dict[str, Any]) -> Tuple[bool, Optional[str]]:
@@ -67,8 +70,6 @@ class GroupMemberChangePlugin(MessagePluginInterface):
             content = content.clean_content
         content = str(content).strip()
         self.LOG.debug(f"插件执行： {self.name}：{content}")
-        if not content or "<sysmsg" not in content:
-            return False, "非系统消息"
         sender = message.get("sender")
         roomid = message.get("roomid", "")
         gbm: GroupBotManager = message.get("gbm")