69 lines
2.4 KiB
Python
69 lines
2.4 KiB
Python
# django-gssapi - SPNEGO/Kerberos authentication for Django applications
|
|
# Copyright (C) 2014-2019 Entr'ouvert
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify it
|
|
# under the terms of the GNU Affero General Public License as published
|
|
# by the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU Affero General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Affero General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
|
|
from django.conf import settings
|
|
|
|
import rest_framework.authentication
|
|
|
|
from . import utils
|
|
|
|
__all__ = ['GSSAPIAuthentication', 'add_gssapi_mutual_auth']
|
|
|
|
|
|
class GSSAPIAuthentication(rest_framework.authentication.BaseAuthentication):
|
|
def get_gssapi_store(self):
|
|
return getattr(settings, 'GSSAPI_STORE', None)
|
|
|
|
def get_gssapi_name(self):
|
|
# force a service name, ex. :
|
|
# server_name = 'HTTP@%s' % self.request.get_host()
|
|
# return gssapi.Name(server_name, name_type=gssapi.NameType.hostbased_service)
|
|
# without one, any service name in keytab will do
|
|
return getattr(settings, 'GSSAPI_NAME', None)
|
|
|
|
def authenticate(self, request):
|
|
try:
|
|
user, gss_name, token = utils.negotiate_and_auth(
|
|
request,
|
|
name=self.get_gssapi_name(),
|
|
store=self.get_gssapi_store())
|
|
except utils.NegotiateContinue as e:
|
|
token = e.token
|
|
|
|
if user is None:
|
|
return None
|
|
|
|
# DRF authentication does not allow to implement
|
|
# natively mutual GSSAPI authentication as we
|
|
# cannot modify the response, if needed views can retrieve the result
|
|
# token and set it on their response
|
|
request._drf_gssapi_token = token
|
|
return user, gss_name
|
|
|
|
def authenticate_header(self, request):
|
|
return utils.authenticate_header(token=get_gssapi_token(request))
|
|
|
|
|
|
def add_gssapi_mutual_auth(request, response):
|
|
token = get_gssapi_token(request)
|
|
if token is not None:
|
|
response['WWW-Authenticate'] = utils.authenticate_header(token=token)
|
|
|
|
|
|
def get_gssapi_token(request):
|
|
return getattr(request, '_drf_gssapi_token', None)
|