Ticket #10681: 10681.diff

django/views/decorators/http.py

@@ -75 +75 @@
             if if_none_match or if_match:
                 # There can be more than one ETag in the request, so we
                 # consider the list of values.
-                etags = parse_etags(if_none_match or if_match)
+                try:
+                    etags = parse_etags(if_none_match or if_match)
+                except ValueError:
+                    # In case of invalid etag ignore all etag headers
+                    if_none_match = None
+                    if_match = None
 
             # Compute values (if any) for the requested resource.
             if etag_func:

tests/regressiontests/conditional_processing/models.py

@@ -112 +112 @@
         response = self.client.get('/condition/last_modified2/')
         self.assertFullResponse(response, check_etag=False)
 
+    def testInvalidETag(self):
+        self.client.defaults['HTTP_IF_NONE_MATCH'] = '"\\"'
+        response = self.client.get('/condition/etag/')
+        self.assertFullResponse(response, check_last_modified=False)
+
 
 class ETagProcesing(TestCase):
     def testParsing(self):