feat: 让麦麦可以正确读取json格式的分享卡片

feat: 让麦麦可以正确读取json格式的分享卡片
#225

src/plugins/chat/message.py

@@ -1,4 +1,7 @@
 import time
+import html
+import re
+import json
 from dataclasses import dataclass
 from typing import Dict, ForwardRef, List, Optional, Union
 
@@ -69,6 +72,20 @@ class MessageRecv(Message):
             message_dict: MessageCQ序列化后的字典
         """
         self.message_info = BaseMessageInfo.from_dict(message_dict.get('message_info', {}))
+
+        message_segment = message_dict.get('message_segment', {})
+
+        if message_segment.get('data','') == '[json]':
+            # 提取json消息中的展示信息
+            pattern = r'\[CQ:json,data=(?P<json_data>.+?)\]'
+            match = re.search(pattern, message_dict.get('raw_message',''))
+            raw_json = html.unescape(match.group('json_data'))
+            try:
+                json_message = json.loads(raw_json)
+            except json.JSONDecodeError:
+                json_message = {}
+            message_segment['data'] = json_message.get('prompt','')
+
         self.message_segment = Seg.from_dict(message_dict.get('message_segment', {}))
         self.raw_message = message_dict.get('raw_message')