优化工单模块，增加企微模块

sg_wechat_enterprise/we_api/parser.py

@@ -0,0 +1,47 @@
+# -*- coding: utf-8 -*-
+"""
+    wechatpy.parser
+    ~~~~~~~~~~~~~~~~
+    This module provides functions for parsing WeChat messages
+
+    :copyright: (c) 2014 by messense.
+    :license: MIT, see LICENSE for more details.
+"""
+from __future__ import absolute_import, unicode_literals
+import xmltodict
+
+from wechatpy.messages import MESSAGE_TYPES, UnknownMessage
+from wechatpy.events import EVENT_TYPES
+from wechatpy.utils import to_text
+
+
+def parse_message(xml):
+    """
+    解析微信服务器推送的 XML 消息
+
+    :param xml: XML 消息
+    :return: 解析成功返回对应的消息或事件，否则返回 ``UnknownMessage``
+    """
+    if not xml:
+        return
+    message = xmltodict.parse(to_text(xml))['xml']
+    message_type = message['MsgType'].lower()
+    if message_type in ('event', 'device_event'):
+        event_type = message['Event'].lower()
+        # special event type for device_event
+        if message_type == 'device_event':
+            event_type = 'device_{event}'.format(event=event_type)
+        if event_type == 'subscribe' and message.get('EventKey'):
+            event_key = message['EventKey']
+            if event_key.startswith(('scanbarcode|', 'scanimage|')):
+                event_type = 'subscribe_scan_product'
+                message['Event'] = event_type
+            else:
+                # Scan to subscribe with scene id event
+                event_type = 'subscribe_scan'
+                message['Event'] = event_type
+            message['EventKey'] = event_key.replace('qrscene_', '')
+        message_class = EVENT_TYPES.get(event_type, UnknownMessage)
+    else:
+        message_class = MESSAGE_TYPES.get(message_type, UnknownMessage)
+    return message_class(message)