Fixed #5227 -- Made the redirect security check in…

Fixed #5227 -- Made the redirect security check in django.contrib.auth.views.login() tighter. Thanks, Sander Dijkhuis

git-svn-id: http://code.djangoproject.com/svn/django/trunk@6004 bcc190cf-cafb-0310-a4f2-bffc1f526a37

AUTHORS

@@ -94,6 +94,7 @@ answer newbie questions, and generally made Django that much better:
     Alex Dedul
     deric@monowerks.com
     Max Derkachev <mderk@yandex.ru>
+    Sander Dijkhuis <sander.dijkhuis@gmail.com>
     Jordan Dimov <s3x3y1@gmail.com>
     dne@mayonnaise.net
     Maximillian Dornseif <md@hudora.de>

django/contrib/auth/views.py

@@ -17,7 +17,7 @@ def login(request, template_name='registration/login.html'):
         errors = manipulator.get_validation_errors(request.POST)
         if not errors:
             # Light security check -- make sure redirect_to isn't garbage.
-            if not redirect_to or '://' in redirect_to or ' ' in redirect_to:
+            if not redirect_to or '//' in redirect_to or ' ' in redirect_to:
                 from django.conf import settings
                 redirect_to = settings.LOGIN_REDIRECT_URL
             from django.contrib.auth import login