feat:add new messagetyps WeChatFile and add wechat file is accepted and transmitted in base64 format. (#1531)

pkg/platform/sources/wechatpad.py

@@ -235,6 +235,7 @@ class WeChatPadMessageConverter(adapter.MessageConverter):
                     '57': self._handler_compound_quote,
                     '5': self._handler_compound_link,
                     '6': self._handler_compound_file,
+                    '74': self._handler_compound_file,
                     '33': self._handler_compound_mini_program,
                     '36': self._handler_compound_mini_program,
                     '2000': partial(self._handler_compound_unsupported, text="[转账消息]"),
@@ -320,10 +321,41 @@ class WeChatPadMessageConverter(adapter.MessageConverter):
             xml_data: ET.Element
     ) -> platform_message.MessageChain:
         """处理文件消息 (data_type=6)"""
-        xml_data_str = ET.tostring(xml_data, encoding='unicode')
+        file_data = xml_data.find('.//appmsg')
-        return platform_message.MessageChain([
+
-            platform_message.WeChatForwardFile(xml_data=xml_data_str)
+        if file_data.findtext('.//type', "") == "74":
-        ])
+            return None
+
+        else:
+            xml_data_str = ET.tostring(xml_data, encoding='unicode')
+            # print(xml_data_str)
+
+            # 提取img标签的属性
+            # print(xml_data)
+            file_name = file_data.find('title').text
+            file_id = file_data.find('md5').text
+            # file_szie = file_data.find('totallen')
+
+            # print(file_data)
+            if file_data is not None:
+                aeskey = xml_data.findtext('.//appattach/aeskey')
+                cdnthumburl = xml_data.findtext('.//appattach/cdnattachurl')
+                # cdnmidimgurl = img_tag.get('cdnmidimgurl')
+
+            # print(aeskey,cdnthumburl)
+
+            file_data = self.bot.cdn_download(aeskey=aeskey, file_type=5, file_url=cdnthumburl)
+
+            file_base64 = file_data["Data"]['FileData']
+            # print(file_data)
+            file_size = file_data["Data"]['TotalSize']
+
+            # print(file_base64)
+            return platform_message.MessageChain([
+                platform_message.WeChatFile(file_id=file_id, file_name=file_name, file_size=file_size,
+                                            file_base64=file_base64),
+                platform_message.WeChatForwardFile(xml_data=xml_data_str)
+            ])
 
     async def _handler_compound_link(
             self,

pkg/platform/types/message.py

@@ -922,3 +922,22 @@ class WeChatForwardQuote(MessageComponent):
 
     def __str__(self):
         return self.app_msg
+
+
+class WeChatFile(MessageComponent):
+    """文件。"""
+
+    type: str = 'File'
+    """消息组件类型。"""
+    file_id: str = ''
+    """文件识别 ID。"""
+    file_name: str = ''
+    """文件名称。"""
+    file_size: int = ''
+    """文件大小。"""
+    file_path: str = ''
+    """文件地址"""
+    file_base64: str = ''
+    """base64"""
+    def __str__(self):
+        return f'[文件]{self.file_name}'