Prevented non-admin users from accessing the admin redirect shortcut.

If the admin shortcut view (e.g. /admin/r/<content-type>/<pk>/) is
publically-accessible, and if a public users can guess a content-type ID
(which isn't hard given that they're sequential), then the redirect view could
possibly leak data by redirecting to pages a user shouldn't "know about." So
the redirect view needs the same protection as the rest of the admin site.

Thanks to Jason Royes for pointing this out.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@15639 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/contrib/admin/sites.py

@@ -3,6 +3,7 @@ from django import http, template
 from django.contrib.admin import ModelAdmin, actions
 from django.contrib.admin.forms import AdminAuthenticationForm, ERROR_MESSAGE
 from django.contrib.auth import REDIRECT_FIELD_NAME, authenticate, login
+from django.contrib.contenttypes import views as contenttype_views
 from django.views.decorators.csrf import csrf_protect
 from django.db.models.base import ModelBase
 from django.core.exceptions import ImproperlyConfigured
@@ -231,7 +232,7 @@ class AdminSite(object):
                 wrap(self.i18n_javascript, cacheable=True),
                 name='jsi18n'),
             url(r'^r/(?P<content_type_id>\d+)/(?P<object_id>.+)/$',
-                'django.views.defaults.shortcut'),
+                wrap(contenttype_views.shortcut)),
             url(r'^(?P<app_label>\w+)/$',
                 wrap(self.app_index),
                 name='app_list')

tests/regressiontests/admin_views/tests.py

@@ -1143,7 +1143,7 @@ class AdminViewStringPrimaryKeyTest(TestCase):
         self.assertContains(response, should_contain)
 
 
-class SecureViewTest(TestCase):
+class SecureViewTests(TestCase):
     fixtures = ['admin-views-users.xml']
 
     def setUp(self):
@@ -1281,6 +1281,25 @@ class SecureViewTest(TestCase):
         # make sure the view removes test cookie
         self.assertEqual(self.client.session.test_cookie_worked(), False)
 
+    def test_shortcut_view_only_available_to_staff(self):
+        """
+        Only admin users should be able to use the admin shortcut view.
+        """
+        user_ctype = ContentType.objects.get_for_model(User)
+        user = User.objects.get(username='super')
+        shortcut_url = "/test_admin/admin/r/%s/%s/" % (user_ctype.pk, user.pk)
+        
+        # Not logged in: we should see the login page.
+        response = self.client.get(shortcut_url, follow=False)
+        self.assertTemplateUsed(response, 'admin/login.html')
+        
+        # Logged in? Redirect.
+        self.client.login(username='super', password='secret')
+        response = self.client.get(shortcut_url, follow=False)
+        # Can't use self.assertRedirects() because User.get_absolute_url() is silly.
+        self.assertEqual(response.status_code, 302)
+        self.assertEqual(response['Location'], 'http://example.com/users/super/')
+
 class AdminViewUnicodeTest(TestCase):
     fixtures = ['admin-views-unicode.xml']
 
@@ -2872,3 +2891,4 @@ class DateHierarchyTests(TestCase):
             self.assert_non_localized_year(response, 2000)
             self.assert_non_localized_year(response, 2003)
             self.assert_non_localized_year(response, 2005)
+