[extensions-web] Don't allow users to grab all extensions by using no query params

[Jasper St. Pierre <jstpierre src gnome org>]

commit 76caf730bde4703b9b782b9c5ff84b2a825365b6
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Thu Oct 27 17:35:48 2011 -0400

    Don't allow users to grab all extensions by using no query params

 sweettooth/extensions/views.py |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/sweettooth/extensions/views.py b/sweettooth/extensions/views.py
index e2dea58..52e057c 100644
--- a/sweettooth/extensions/views.py
+++ b/sweettooth/extensions/views.py
@@ -180,6 +180,9 @@ def ajax_query_view(request):
     if uuids:
         query_params['uuid__in'] = uuids
 
+    if not query_params:
+        raise Http404()
+
     extensions = models.Extension.objects.filter(**query_params)
     return [ajax_details(e) for e in extensions]