Fixed duplicate execution of process_response

src/pretix/presale/context.py

@@ -1,6 +1,5 @@
 from django.conf import settings
 from django.core.files.storage import default_storage
-from django.core.urlresolvers import Resolver404, resolve
 
 from .signals import footer_link, html_head
 
@@ -9,11 +8,7 @@ def contextprocessor(request):
     """
     Adds data to all template contexts
     """
-    try:
-        url = resolve(request.path_info)
-    except Resolver404:
-        return {}
-    if url.namespace != 'presale':
+    if request.path.startswith('/control'):
         return {}
 
     ctx = {
@@ -30,6 +25,7 @@ def contextprocessor(request):
         if request.event.settings.presale_css_file:
             ctx['css_file'] = default_storage.url(request.event.settings.presale_css_file)
         ctx['event_logo'] = request.event.settings.get('logo_image', as_type=str, default='')[7:]
+        ctx['event'] = request.event
 
     ctx['html_head'] = "".join(_html_head)
     ctx['footer'] = _footer

src/pretix/presale/middleware.py

@@ -8,8 +8,7 @@ from .utils import _detect_event
 class EventMiddleware:
     def process_request(self, request):
         url = resolve(request.path_info)
-        url_namespace = url.namespace
-        if url_namespace != 'presale':
+        if url.namespace != 'presale':
             return
 
         if 'organizer' in url.kwargs or 'event' in url.kwargs:
@@ -23,7 +22,8 @@ class EventMiddleware:
             request.session['_'] = '_'
 
     def process_response(self, request, response):
-        if hasattr(request, 'event'):
+        url = resolve(request.path_info)
+        if url.namespace == 'presale' and hasattr(request, 'event'):
             for receiver, r in process_response.send(request.event, request=request, response=response):
                 response = r
         return response