Sunil Mohan Adapa 22a120d979
*: pylint: Avoid calling super() with arguments
Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org>
Reviewed-by: James Valleroy <jvalleroy@mailbox.org>
2022-07-04 19:46:23 -04:00

112 lines
3.7 KiB
Python

# SPDX-License-Identifier: AGPL-3.0-or-later
"""
Views for the Single Sign On app of FreedomBox.
"""
import logging
import os
import urllib
import axes.utils
from axes.decorators import axes_form_invalid
from django import shortcuts
from django.contrib import messages
from django.contrib.auth import REDIRECT_FIELD_NAME
from django.contrib.auth import logout as auth_logout
from django.contrib.auth.views import LoginView
from django.http import HttpResponseRedirect
from django.utils.translation import gettext as _
from plinth import actions, translation, utils, web_framework
from .forms import AuthenticationForm, CaptchaAuthenticationForm
PRIVATE_KEY_FILE_NAME = 'privkey.pem'
SSO_COOKIE_NAME = 'auth_pubtkt'
KEYS_DIRECTORY = '/etc/apache2/auth-pubtkt-keys'
logger = logging.getLogger(__name__)
def set_ticket_cookie(user, response):
"""Generate and set a mod_auth_pubtkt as a cookie in the provided
response.
"""
tokens = list(map(lambda g: g.name, user.groups.all()))
private_key_file = os.path.join(KEYS_DIRECTORY, PRIVATE_KEY_FILE_NAME)
ticket = actions.superuser_run('auth-pubtkt', [
'generate-ticket', '--uid', user.username, '--private-key-file',
private_key_file, '--tokens', ','.join(tokens)
])
response.set_cookie(SSO_COOKIE_NAME, urllib.parse.quote(ticket))
return response
class SSOLoginView(LoginView):
"""View to login to FreedomBox and set a auth_pubtkt cookie.
Cookie will be used to provide Single Sign On for some other applications.
"""
redirect_authenticated_user = True
template_name = 'login.html'
form_class = AuthenticationForm
def dispatch(self, request, *args, **kwargs):
response = super().dispatch(request, *args, **kwargs)
if request.user.is_authenticated:
translation.set_language(request, response,
request.user.userprofile.language)
return set_ticket_cookie(request.user, response)
return response
# XXX: Use axes middleware and authentication backend instead of
# axes_form_invalid when axes >= 5.0.0 becomes available in Debian stable.
@axes_form_invalid
def form_invalid(self, *args, **kwargs):
return super().form_invalid(*args, **kwargs)
class CaptchaLoginView(LoginView):
redirect_authenticated_user = True
template_name = 'login.html'
form_class = CaptchaAuthenticationForm
def dispatch(self, request, *args, **kwargs):
response = super().dispatch(request, *args, **kwargs)
if not request.POST:
return response
if not request.user.is_authenticated:
return response
# Successful authentication
if utils.is_axes_old():
ip_address = web_framework.get_ip_address_from_request(request)
axes.utils.reset(ip=ip_address)
logger.info(
'Login attempts reset for IP after successful login: %s',
ip_address)
return set_ticket_cookie(request.user, response)
def logout(request):
"""Logout an authenticated user, remove SSO cookie and redirect to home."""
auth_logout(request)
response = shortcuts.redirect('index')
response.delete_cookie(SSO_COOKIE_NAME)
messages.success(request, _('Logged out successfully.'))
return response
def refresh(request):
"""Simulate cookie refresh - redirect logged in user with a new cookie"""
redirect_url = request.GET.get(REDIRECT_FIELD_NAME, '')
response = HttpResponseRedirect(redirect_url)
response.delete_cookie(SSO_COOKIE_NAME)
# Redirect with cookie doesn't work with 300 series
response.status_code = 200
return set_ticket_cookie(request.user, response)