Fix file descriptor leak when FileResponse raises an exception

photo21/views.py

@@ -23,9 +23,14 @@ class MediaAccess(View):
             raise Http404
         if not os.path.isfile(file_path):
             raise Http404
-        response = FileResponse(open(file_path, 'rb'))
+        f = open(file_path, 'rb')
+        try:
+            response = FileResponse(f)
             response['Cache-Control'] = 'max-age=2678400'
             return response
+        except Exception:
+            f.close()
+            raise
 
 
 class IndexView(LoginRequiredMixin, ListView):