Merged the latest master into siarheipuhach-feature/flake8

utils/context_processor.py

@@ -0,0 +1,15 @@
+from django.conf import settings
+
+
+def google_analytics(request):
+    """
+    Use the variables returned in this function to
+    render your Google Analytics tracking code template.
+    """
+    host = request.get_host()
+    ga_prop_id = getattr(settings, 'GOOGLE_ANALYTICS_PROPERTY_IDS', False).get(host)
+    if not settings.DEBUG and ga_prop_id:
+        return {
+            'GOOGLE_ANALYTICS_PROPERTY_ID': ga_prop_id
+        }
+    return {}

utils/middleware.py

@@ -0,0 +1,17 @@
+class MultipleProxyMiddleware(object):
+    FORWARDED_FOR_FIELDS = [
+        'HTTP_X_FORWARDED_FOR',
+        'HTTP_X_FORWARDED_HOST',
+        'HTTP_X_FORWARDED_SERVER',
+    ]
+
+    def process_request(self, request):
+        """
+        Rewrites the proxy headers so that only the most
+        recent proxy is used.
+        """
+        for field in self.FORWARDED_FOR_FIELDS:
+            if field in request.META:
+                if ',' in request.META[field]:
+                    parts = request.META[field].split(',')
+                    request.META[field] = parts[-1].strip()