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# Copyright 2013 OpenStack Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import copy
import uuid
from keystone.common import wsgi
from keystone import exception
from keystone.models import token_model
from keystone.tests import unit
from keystone.tests.unit import test_token_provider
KERBEROS_BIND = 'USER@REALM'
ANY = 'any'
class BindTest(unit.TestCase):
"""Test binding tokens to a Principal.
Even though everything in this file references kerberos the same concepts
will apply to all future binding mechanisms.
"""
def setUp(self):
super(BindTest, self).setUp()
self.TOKEN_BIND_KERB = copy.deepcopy(
test_token_provider.SAMPLE_V3_TOKEN)
self.TOKEN_BIND_KERB['token']['bind'] = {'kerberos': KERBEROS_BIND}
self.TOKEN_BIND_UNKNOWN = copy.deepcopy(
test_token_provider.SAMPLE_V3_TOKEN)
self.TOKEN_BIND_UNKNOWN['token']['bind'] = {'FOO': 'BAR'}
self.TOKEN_BIND_NONE = copy.deepcopy(
test_token_provider.SAMPLE_V3_TOKEN)
self.ALL_TOKENS = [self.TOKEN_BIND_KERB, self.TOKEN_BIND_UNKNOWN,
self.TOKEN_BIND_NONE]
def assert_kerberos_bind(self, tokens, bind_level,
use_kerberos=True, success=True):
if not isinstance(tokens, dict):
for token in tokens:
self.assert_kerberos_bind(token, bind_level,
use_kerberos=use_kerberos,
success=success)
elif use_kerberos == ANY:
for val in (True, False):
self.assert_kerberos_bind(tokens, bind_level,
use_kerberos=val, success=success)
else:
context = {'environment': {}}
self.config_fixture.config(group='token',
enforce_token_bind=bind_level)
if use_kerberos:
context['environment']['REMOTE_USER'] = KERBEROS_BIND
context['environment']['AUTH_TYPE'] = 'Negotiate'
# NOTE(morganfainberg): This assumes a V3 token.
token_ref = token_model.KeystoneToken(
token_id=uuid.uuid4().hex,
token_data=tokens)
if not success:
self.assertRaises(exception.Unauthorized,
wsgi.validate_token_bind,
context, token_ref)
else:
wsgi.validate_token_bind(context, token_ref)
# DISABLED
def test_bind_disabled_with_kerb_user(self):
self.assert_kerberos_bind(self.ALL_TOKENS,
bind_level='disabled',
use_kerberos=ANY,
success=True)
# PERMISSIVE
def test_bind_permissive_with_kerb_user(self):
self.assert_kerberos_bind(self.TOKEN_BIND_KERB,
bind_level='permissive',
use_kerberos=True,
success=True)
def test_bind_permissive_with_regular_token(self):
self.assert_kerberos_bind(self.TOKEN_BIND_NONE,
bind_level='permissive',
use_kerberos=ANY,
success=True)
def test_bind_permissive_without_kerb_user(self):
self.assert_kerberos_bind(self.TOKEN_BIND_KERB,
bind_level='permissive',
use_kerberos=False,
success=False)
def test_bind_permissive_with_unknown_bind(self):
self.assert_kerberos_bind(self.TOKEN_BIND_UNKNOWN,
bind_level='permissive',
use_kerberos=ANY,
success=True)
# STRICT
def test_bind_strict_with_regular_token(self):
self.assert_kerberos_bind(self.TOKEN_BIND_NONE,
bind_level='strict',
use_kerberos=ANY,
success=True)
def test_bind_strict_with_kerb_user(self):
self.assert_kerberos_bind(self.TOKEN_BIND_KERB,
bind_level='strict',
use_kerberos=True,
success=True)
def test_bind_strict_without_kerb_user(self):
self.assert_kerberos_bind(self.TOKEN_BIND_KERB,
bind_level='strict',
use_kerberos=False,
success=False)
def test_bind_strict_with_unknown_bind(self):
self.assert_kerberos_bind(self.TOKEN_BIND_UNKNOWN,
bind_level='strict',
use_kerberos=ANY,
success=False)
# REQUIRED
def test_bind_required_with_regular_token(self):
self.assert_kerberos_bind(self.TOKEN_BIND_NONE,
bind_level='required',
use_kerberos=ANY,
success=False)
def test_bind_required_with_kerb_user(self):
self.assert_kerberos_bind(self.TOKEN_BIND_KERB,
bind_level='required',
use_kerberos=True,
success=True)
def test_bind_required_without_kerb_user(self):
self.assert_kerberos_bind(self.TOKEN_BIND_KERB,
bind_level='required',
use_kerberos=False,
success=False)
def test_bind_required_with_unknown_bind(self):
self.assert_kerberos_bind(self.TOKEN_BIND_UNKNOWN,
bind_level='required',
use_kerberos=ANY,
success=False)
# NAMED
def test_bind_named_with_regular_token(self):
self.assert_kerberos_bind(self.TOKEN_BIND_NONE,
bind_level='kerberos',
use_kerberos=ANY,
success=False)
def test_bind_named_with_kerb_user(self):
self.assert_kerberos_bind(self.TOKEN_BIND_KERB,
bind_level='kerberos',
use_kerberos=True,
success=True)
def test_bind_named_without_kerb_user(self):
self.assert_kerberos_bind(self.TOKEN_BIND_KERB,
bind_level='kerberos',
use_kerberos=False,
success=False)
def test_bind_named_with_unknown_bind(self):
self.assert_kerberos_bind(self.TOKEN_BIND_UNKNOWN,
bind_level='kerberos',
use_kerberos=ANY,
success=False)
def test_bind_named_with_unknown_scheme(self):
self.assert_kerberos_bind(self.ALL_TOKENS,
bind_level='unknown',
use_kerberos=ANY,
success=False)
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