import xml.etree.ElementTree as ET
import html
import re


def format_quote_message(xml_content):
    """
    格式化引用消息
    
    Args:
        xml_content: XML格式的消息内容
        
    Returns:
        格式化后的消息文本
    """
    try:
        
        xml_content = xml_content.replace('&lt;', '<').replace('&gt;', '>')
        # 使用正则表达式直接提取关键信息，避免XML解析问题
        title_match = re.search(r'<title>(.*?)</title>', xml_content)
        main_content = title_match.group(1) if title_match else "[无标题]"
        
        # 提取引用消息的发送者和内容
        display_name_match = re.search(r'<displayname>(.*?)</displayname>', xml_content)
        display_name = display_name_match.group(1) if display_name_match else "未知用户"
        
        quoted_content_match = re.search(r'<refermsg>.*?<content>(.*?)</content>', xml_content, re.DOTALL)
        quoted_content = quoted_content_match.group(1) if quoted_content_match else ""
        
        # 解码HTML实体
        try:
            quoted_content = html.unescape(quoted_content)
        except:
            pass  # 如果解码失败，使用原始内容
        
        # 构建格式化的引用消息
        if display_name and quoted_content:
            formatted_message = f"{main_content}\n引用 {display_name}：{quoted_content}"
            return formatted_message
        
        return main_content
    except Exception as e:
        # 如果解析失败，尝试提取title标签内容
        try:
            match = re.search(r'<title>(.*?)</title>', xml_content)
            if match:
                return match.group(1)
        except:
            pass
            
        return f"[引用消息]"  # 返回一个简单的标识，而不是错误信息


if __name__ == '__main__':
    strs ="""
<?xml version="1.0"?> <msg> <appmsg appid="" sdkver="0"> <title>那也没事，都是富二代，都是送出国镀个金回家继承家业的</title> <des /> <action /> <type>57</type> <showtype>0</showtype> <soundtype>0</soundtype> <mediatagname /> <messageext /> <messageaction /> <content /> <contentattr>0</contentattr> <url /> <lowurl /> <dataurl /> <lowdataurl /> <songalbumurl /> <songlyric /> <appattach> <totallen>0</totallen> <attachid /> <emoticonmd5></emoticonmd5> <fileext /> <aeskey></aeskey> </appattach> <extinfo /> <sourceusername /> <sourcedisplayname /> <thumburl /> <md5 /> <statextstr /> <refermsg> <type>1</type> <svrid>2568355911763278189</svrid> <fromusr>45317011307@chatroom</fromusr> <chatusr>wxid_twrbhdxddlud12</chatusr> <displayname>水牛🐃</displayname> <content>都是富二代。</content> <msgsource>&lt;msgsource&gt; &lt;sec_msg_node&gt; &lt;alnode&gt; &lt;fr&gt;1&lt;/fr&gt; &lt;/alnode&gt; &lt;/sec_msg_node&gt; &lt;pua&gt;1&lt;/pua&gt; &lt;silence&gt;1&lt;/silence&gt; &lt;membercount&gt;125&lt;/membercount&gt; &lt;signature&gt;N0_V1_DaX/Y3s2|v1_PvH3m56P&lt;/signature&gt; &lt;tmp_node&gt; &lt;publisher-id&gt;&lt;/publisher-id&gt; &lt;/tmp_node&gt; &lt;/msgsource&gt; </msgsource> <createtime>1743491847</createtime> </refermsg> </appmsg> <fromusername>maoyijie</fromusername> <scene>0</scene> <appinfo> <version>1</version> <appname /> </appinfo> <commenturl /> </msg>
    """
    sss = format_quote_message(strs)
    print(sss)