Commit 7207481a authored by Jannis Leidel's avatar Jannis Leidel
Browse files

[1.2.X] Fixed #11223 -- Fixed logout view to use the 'next' GET parameter...

[1.2.X] Fixed #11223 -- Fixed logout view to use the 'next' GET parameter correctly as described in the docs, while only allowing redirection to the same host.

Backport from trunk (r15706).

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.2.X@15707 bcc190cf-cafb-0310-a4f2-bffc1f526a37
parent 29fccc35
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+55 −0
Original line number Diff line number Diff line
@@ -270,6 +270,19 @@ class LogoutTest(AuthViewsTestCase):
        response = self.client.get('/logout/')
        self.assertTrue('site' in response.context)

    def test_logout_with_overridden_redirect_url(self):
        # Bug 11223
        self.login()
        response = self.client.get('/logout/next_page/')
        self.assertEqual(response.status_code, 302)
        self.assert_(response['Location'].endswith('/somewhere/'))

        response = self.client.get('/logout/next_page/?next=/login/')
        self.assertEqual(response.status_code, 302)
        self.assert_(response['Location'].endswith('/login/'))

        self.confirm_logged_out()

    def test_logout_with_next_page_specified(self):
        "Logout with next_page option given redirects to specified resource"
        self.login()
@@ -293,3 +306,45 @@ class LogoutTest(AuthViewsTestCase):
        self.assertEqual(response.status_code, 302)
        self.assert_(response['Location'].endswith('/somewhere/'))
        self.confirm_logged_out()

    def test_security_check(self, password='password'):
        logout_url = reverse('django.contrib.auth.views.logout')

        # Those URLs should not pass the security check
        for bad_url in ('http://example.com',
                        'https://example.com',
                        'ftp://exampel.com',
                        '//example.com'
                        ):
            nasty_url = '%(url)s?%(next)s=%(bad_url)s' % {
                'url': logout_url,
                'next': REDIRECT_FIELD_NAME,
                'bad_url': urllib.quote(bad_url)
            }
            self.login()
            response = self.client.get(nasty_url)
            self.assertEquals(response.status_code, 302)
            self.assertFalse(bad_url in response['Location'],
                             "%s should be blocked" % bad_url)
            self.confirm_logged_out()

        # These URLs *should* still pass the security check
        for good_url in ('/view/?param=http://example.com',
                         '/view/?param=https://example.com',
                         '/view?param=ftp://exampel.com',
                         'view/?param=//example.com',
                         'https:///',
                         '//testserver/',
                         '/url%20with%20spaces/', # see ticket #12534
                         ):
            safe_url = '%(url)s?%(next)s=%(good_url)s' % {
                'url': logout_url,
                'next': REDIRECT_FIELD_NAME,
                'good_url': urllib.quote(good_url)
            }
            self.login()
            response = self.client.get(safe_url)
            self.assertEquals(response.status_code, 302)
            self.assertTrue(good_url in response['Location'],
                            "%s should be allowed" % good_url)
            self.confirm_logged_out()
+28 −25
Original line number Diff line number Diff line
import re
import urlparse

from django.conf import settings
from django.contrib.auth import REDIRECT_FIELD_NAME
# Avoid shadowing the login() view below.
from django.contrib.auth import login as auth_login
from django.contrib.auth.decorators import login_required
from django.contrib.auth.forms import AuthenticationForm
from django.contrib.auth.forms import PasswordResetForm, SetPasswordForm, PasswordChangeForm
from django.contrib.auth.tokens import default_token_generator
from django.views.decorators.csrf import csrf_protect
from django.core.urlresolvers import reverse
from django.shortcuts import render_to_response, get_object_or_404
from django.contrib.sites.models import get_current_site
from django.http import HttpResponseRedirect, Http404
from django.http import HttpResponseRedirect
from django.shortcuts import render_to_response
from django.template import RequestContext
from django.utils.http import urlquote, base36_to_int
from django.utils.translation import ugettext as _
from django.contrib.auth.models import User
from django.views.decorators.cache import never_cache
from django.views.decorators.csrf import csrf_protect

# Avoid shadowing the login() and logout() views below.
from django.contrib.auth import REDIRECT_FIELD_NAME, login as auth_login, logout as auth_logout
from django.contrib.auth.decorators import login_required
from django.contrib.auth.forms import AuthenticationForm, PasswordResetForm, SetPasswordForm, PasswordChangeForm
from django.contrib.auth.models import User
from django.contrib.auth.tokens import default_token_generator
from django.contrib.sites.models import get_current_site


@csrf_protect
@never_cache
@@ -24,7 +26,6 @@ def login(request, template_name='registration/login.html',
          redirect_field_name=REDIRECT_FIELD_NAME,
          authentication_form=AuthenticationForm):
    """Displays the login form and handles the login action."""

    redirect_to = request.REQUEST.get(redirect_field_name, '')

    if request.method == "POST":
@@ -65,13 +66,15 @@ def login(request, template_name='registration/login.html',

def logout(request, next_page=None, template_name='registration/logged_out.html', redirect_field_name=REDIRECT_FIELD_NAME):
    "Logs out the user and displays 'You are logged out' message."
    from django.contrib.auth import logout
    logout(request)
    if next_page is None:
    auth_logout(request)
    redirect_to = request.REQUEST.get(redirect_field_name, '')
    if redirect_to:
        netloc = urlparse.urlparse(redirect_to)[1]
        # Security check -- don't allow redirection to a different host.
        if not (netloc and netloc != request.get_host()):
            return HttpResponseRedirect(redirect_to)
        else:

    if next_page is None:
        current_site = get_current_site(request)
        return render_to_response(template_name, {
            'site': current_site,