Ticket #13542: debug_404_links.diff

django/views/debug.py

@@ -275 +275 @@
             # tried exists but is an empty list. The URLconf must've been empty.
             return empty_urlconf(request)
 
+    # Make the debug 404 list URL patterns as links where applicable:
+
+    # The patterns need to be output as safe to render the links, so escape
+    # them now before the the links are added
+    tried = map(escape, tried)
+
+    for pattern in tried:
+        match = re.match('\^([/\w]*)\$?$', pattern)
+        if match:
+            tried[tried.index(pattern)] = (
+                    u'<a href="/{0}">{1}</a>'.format(match.group(1), pattern))
+
     t = Template(TECHNICAL_404_TEMPLATE, name='Technical 404 template')
     c = Context({
         'root_urlconf': settings.ROOT_URLCONF,
@@ -778 +790 @@
       </p>
       <ol>
         {% for pattern in urlpatterns %}
-          <li>{{ pattern }}</li>
+          <li>{{ pattern|safe }}</li>
         {% endfor %}
       </ol>
       <p>The current URL, <code>{{ request_path|escape }}</code>, didn't match any of these.</p>