优化工单模块，增加企微模块

sg_wechat_enterprise/we_api/pay/utils.py

@@ -0,0 +1,54 @@
+# -*- coding: utf-8 -*-
+from __future__ import absolute_import, unicode_literals
+import copy
+import hashlib
+import socket
+
+import six
+
+from wechatpy.utils import to_binary, to_text
+
+
+def format_url(params, api_key=None):
+    data = [to_binary('{0}={1}'.format(k, params[k])) for k in sorted(params) if params[k]]
+    if api_key:
+        data.append(to_binary('key={0}'.format(api_key)))
+    return b"&".join(data)
+
+
+def calculate_signature(params, api_key):
+    url = format_url(params, api_key)
+    return to_text(hashlib.md5(url).hexdigest().upper())
+
+
+def _check_signature(params, api_key):
+    _params = copy.deepcopy(params)
+    sign = _params.pop('sign', '')
+    return sign == calculate_signature(_params, api_key)
+
+
+def dict_to_xml(d, sign):
+    xml = ['<xml>\n']
+    for k in sorted(d):
+        # use sorted to avoid test error on Py3k
+        v = d[k]
+        if isinstance(v, six.integer_types) or v.isdigit():
+            xml.append('<{0}>{1}</{0}>\n'.format(to_text(k), to_text(v)))
+        else:
+            xml.append(
+                '<{0}><![CDATA[{1}]]></{0}>\n'.format(to_text(k), to_text(v))
+            )
+    xml.append('<sign><![CDATA[{0}]]></sign>\n</xml>'.format(to_text(sign)))
+    return ''.join(xml)
+
+
+def get_external_ip():
+    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+    try:
+        wechat_ip = socket.gethostbyname('api.mch.weixin.qq.com')
+        sock.connect((wechat_ip, 80))
+        addr, port = sock.getsockname()
+        sock.close()
+        return addr
+    except socket.error:
+        return '127.0.0.1'