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# Copyright 2013 OpenStack LLC
#
# 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.
from keystone.common import wsgi
from keystone import config
from keystone import exception
from keystone.tests import core as test
CONF = config.CONF
KERBEROS_BIND = 'USER@REALM'
# the only thing the function checks for is the presence of bind
TOKEN_BIND_KERB = {'bind': {'kerberos': KERBEROS_BIND}}
TOKEN_BIND_UNKNOWN = {'bind': {'FOO': 'BAR'}}
TOKEN_BIND_NONE = {}
ANY = 'any'
ALL_TOKENS = [TOKEN_BIND_KERB, TOKEN_BIND_UNKNOWN, TOKEN_BIND_NONE]
class BindTest(test.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 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 = {}
CONF.token.enforce_token_bind = bind_level
if use_kerberos:
context['REMOTE_USER'] = KERBEROS_BIND
context['AUTH_TYPE'] = 'Negotiate'
if not success:
self.assertRaises(exception.Unauthorized,
wsgi.validate_token_bind,
context, tokens)
else:
wsgi.validate_token_bind(context, tokens)
# DISABLED
def test_bind_disabled_with_kerb_user(self):
self.assert_kerberos_bind(ALL_TOKENS,
bind_level='disabled',
use_kerberos=ANY,
success=True)
# PERMISSIVE
def test_bind_permissive_with_kerb_user(self):
self.assert_kerberos_bind(TOKEN_BIND_KERB,
bind_level='permissive',
use_kerberos=True,
success=True)
def test_bind_permissive_with_regular_token(self):
self.assert_kerberos_bind(TOKEN_BIND_NONE,
bind_level='permissive',
use_kerberos=ANY,
success=True)
def test_bind_permissive_without_kerb_user(self):
self.assert_kerberos_bind(TOKEN_BIND_KERB,
bind_level='permissive',
use_kerberos=False,
success=False)
def test_bind_permissive_with_unknown_bind(self):
self.assert_kerberos_bind(TOKEN_BIND_UNKNOWN,
bind_level='permissive',
use_kerberos=ANY,
success=True)
# STRICT
def test_bind_strict_with_regular_token(self):
self.assert_kerberos_bind(TOKEN_BIND_NONE,
bind_level='strict',
use_kerberos=ANY,
success=True)
def test_bind_strict_with_kerb_user(self):
self.assert_kerberos_bind(TOKEN_BIND_KERB,
bind_level='strict',
use_kerberos=True,
success=True)
def test_bind_strict_without_kerb_user(self):
self.assert_kerberos_bind(TOKEN_BIND_KERB,
bind_level='strict',
use_kerberos=False,
success=False)
def test_bind_strict_with_unknown_bind(self):
self.assert_kerberos_bind(TOKEN_BIND_UNKNOWN,
bind_level='strict',
use_kerberos=ANY,
success=False)
# REQUIRED
def test_bind_required_with_regular_token(self):
self.assert_kerberos_bind(TOKEN_BIND_NONE,
bind_level='required',
use_kerberos=ANY,
success=False)
def test_bind_required_with_kerb_user(self):
self.assert_kerberos_bind(TOKEN_BIND_KERB,
bind_level='required',
use_kerberos=True,
success=True)
def test_bind_required_without_kerb_user(self):
self.assert_kerberos_bind(TOKEN_BIND_KERB,
bind_level='required',
use_kerberos=False,
success=False)
def test_bind_required_with_unknown_bind(self):
self.assert_kerberos_bind(TOKEN_BIND_UNKNOWN,
bind_level='required',
use_kerberos=ANY,
success=False)
# NAMED
def test_bind_named_with_regular_token(self):
self.assert_kerberos_bind(TOKEN_BIND_NONE,
bind_level='kerberos',
use_kerberos=ANY,
success=False)
def test_bind_named_with_kerb_user(self):
self.assert_kerberos_bind(TOKEN_BIND_KERB,
bind_level='kerberos',
use_kerberos=True,
success=True)
def test_bind_named_without_kerb_user(self):
self.assert_kerberos_bind(TOKEN_BIND_KERB,
bind_level='kerberos',
use_kerberos=False,
success=False)
def test_bind_named_with_unknown_bind(self):
self.assert_kerberos_bind(TOKEN_BIND_UNKNOWN,
bind_level='kerberos',
use_kerberos=ANY,
success=False)
def test_bind_named_with_unknown_scheme(self):
self.assert_kerberos_bind(ALL_TOKENS,
bind_level='unknown',
use_kerberos=ANY,
success=False)
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