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1cb7b3210a
Use the user_logged_in signal provided by Django to log the user in. This keeps the login code simple and uncluttered. Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org> Reviewed-by: James Valleroy <jvalleroy@mailbox.org>
124 lines
4.0 KiB
Python
124 lines
4.0 KiB
Python
#
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# This file is part of FreedomBox.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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"""
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Views for the Single Sign On app of FreedomBox.
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"""
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import logging
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import os
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import urllib
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from django.contrib.auth import REDIRECT_FIELD_NAME
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from django.contrib.auth.views import LoginView, LogoutView
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from django.http import HttpResponseRedirect
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from axes.decorators import axes_form_invalid
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from axes.utils import reset
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from plinth import actions
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from .forms import AuthenticationForm
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PRIVATE_KEY_FILE_NAME = 'privkey.pem'
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SSO_COOKIE_NAME = 'auth_pubtkt'
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KEYS_DIRECTORY = '/etc/apache2/auth-pubtkt-keys'
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logger = logging.getLogger(__name__)
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def set_ticket_cookie(user, response):
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"""Generate and set a mod_auth_pubtkt as a cookie in the provided
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response.
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"""
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tokens = list(map(lambda g: g.name, user.groups.all()))
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private_key_file = os.path.join(KEYS_DIRECTORY, PRIVATE_KEY_FILE_NAME)
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ticket = actions.superuser_run('auth-pubtkt', [
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'generate-ticket', '--uid', user.username, '--private-key-file',
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private_key_file, '--tokens', ','.join(tokens)
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])
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response.set_cookie(SSO_COOKIE_NAME, urllib.parse.quote(ticket))
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return response
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class SSOLoginView(LoginView):
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"""View to login to FreedomBox and set a auth_pubtkt cookie.
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Cookie will be used to provide Single Sign On for some other applications.
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"""
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redirect_authenticated_user = True
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template_name = 'login.html'
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def dispatch(self, request, *args, **kwargs):
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response = super(SSOLoginView, self).dispatch(request, *args, **kwargs)
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if request.user.is_authenticated:
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return set_ticket_cookie(request.user, response)
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else:
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return response
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@axes_form_invalid
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def form_invalid(self, *args, **kwargs):
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return super(SSOLoginView, self).form_invalid(*args, **kwargs)
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class CaptchaLoginView(LoginView):
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redirect_authenticated_user = True
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template_name = 'login.html'
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form_class = AuthenticationForm
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def dispatch(self, request, *args, **kwargs):
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response = super(CaptchaLoginView, self).dispatch(
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request, *args, **kwargs)
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if request.POST:
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if request.user.is_authenticated:
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ip = get_ip_address_from_request(request)
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reset(ip=ip)
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return set_ticket_cookie(request.user, response)
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else:
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return response
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return response
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def get_ip_address_from_request(request):
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x_forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR')
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if x_forwarded_for:
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ip = x_forwarded_for.split(',')[0]
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else:
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ip = request.META.get('REMOTE_ADDR')
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logger.warning("IP address is " + ip)
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return ip
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class SSOLogoutView(LogoutView):
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"""View to log out of FreedomBox and remove the auth_pubtkt cookie."""
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template_name = 'index.html'
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def dispatch(self, request, *args, **kwargs):
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response = super(SSOLogoutView, self).dispatch(request, *args,
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**kwargs)
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response.delete_cookie(SSO_COOKIE_NAME)
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return response
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def refresh(request):
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"""Simulate cookie refresh - redirect logged in user with a new cookie"""
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redirect_url = request.GET.get(REDIRECT_FIELD_NAME, '')
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response = HttpResponseRedirect(redirect_url)
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response.delete_cookie(SSO_COOKIE_NAME)
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# Redirect with cookie doesn't work with 300 series
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response.status_code = 200
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return set_ticket_cookie(request.user, response)
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