first commit

utils/processors.py

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+# -*- coding: utf-8 -*-
+
+import re
+
+from django.utils.deprecation import MiddlewareMixin
+
+
+class ConstExtendIntField(int):
+    def __new__(cls, flag, version=''):
+        obj = int.__new__(cls, flag)
+        obj.version = version
+        return obj
+
+
+class UserAgentDetectionMiddleware(MiddlewareMixin):
+
+    def process_request(self, request):
+        ua = request.META.get('HTTP_USER_AGENT', '').lower()
+
+        # ####### Device、OS #######
+        # Windows
+        request.Windows = 'windows nt' in ua
+        # Linux
+        request.Linux = 'linux x86_64' in ua
+        # iMac、iPhone、iPad、iPod
+        request.iMac, request.iPhone, request.iPad, request.iPod = 'macintosh' in ua, 'iphone' in ua, 'ipad' in ua, 'ipod' in ua
+        # PC
+        request.PC = request.Windows or request.Linux or request.iMac
+        # iOS
+        request.iOS = request.iPhone or request.iPad or request.iMac or request.iPod
+        # Android and Version
+        adr = re.findall(r'android ([\d.]+)', ua)
+        request.Android = ConstExtendIntField(True, adr[0]) if adr else ConstExtendIntField('android' in ua, '')
+
+        # ####### APP #######
+        # Weixin/Wechat and Version
+        wx = re.findall(r'micromessenger[\s/]([\d.]+)', ua)
+        request.weixin = request.wechat = ConstExtendIntField(True, wx[0]) if wx else ConstExtendIntField(False, '')
+
+        return None