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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 Piston Cloud Computing, Inc.
# All Rights Reserved.
# 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 StringIO
import tempfile
import urllib2
from keystone.common import policy as common_policy
from keystone import config
from keystone import exception
from keystone.policy.backends import rules
from keystone import test
CONF = config.CONF
class PolicyFileTestCase(test.TestCase):
def setUp(self):
super(PolicyFileTestCase, self).setUp()
rules.reset()
_unused, self.tmpfilename = tempfile.mkstemp()
self.opt(policy_file=self.tmpfilename)
self.target = {}
def tearDown(self):
super(PolicyFileTestCase, self).tearDown()
rules.reset()
def test_modified_policy_reloads(self):
action = "example:test"
empty_credentials = {}
with open(self.tmpfilename, "w") as policyfile:
policyfile.write("""{"example:test": []}""")
rules.enforce(empty_credentials, action, self.target)
with open(self.tmpfilename, "w") as policyfile:
policyfile.write("""{"example:test": ["false:false"]}""")
# NOTE(vish): reset stored policy cache so we don't have to sleep(1)
rules._POLICY_CACHE = {}
self.assertRaises(exception.Forbidden, rules.enforce,
empty_credentials, action, self.target)
class PolicyTestCase(test.TestCase):
def setUp(self):
super(PolicyTestCase, self).setUp()
rules.reset()
# NOTE(vish): preload rules to circumvent reloading from file
rules.init()
brain = {
"true": [],
"example:allowed": [],
"example:denied": [["false:false"]],
"example:get_http": [["http:http://www.example.com"]],
"example:my_file": [["role:compute_admin"],
["project_id:%(project_id)s"]],
"example:early_and_fail": [["false:false", "rule:true"]],
"example:early_or_success": [["rule:true"], ["false:false"]],
"example:lowercase_admin": [["role:admin"], ["role:sysadmin"]],
"example:uppercase_admin": [["role:ADMIN"], ["role:sysadmin"]],
}
# NOTE(vish): then overload underlying brain
common_policy.set_brain(common_policy.HttpBrain(brain))
self.credentials = {}
self.target = {}
def tearDown(self):
rules.reset()
super(PolicyTestCase, self).tearDown()
def test_enforce_nonexistent_action_throws(self):
action = "example:noexist"
self.assertRaises(exception.Forbidden, rules.enforce,
self.credentials, action, self.target)
def test_enforce_bad_action_throws(self):
action = "example:denied"
self.assertRaises(exception.Forbidden, rules.enforce,
self.credentials, action, self.target)
def test_enforce_good_action(self):
action = "example:allowed"
rules.enforce(self.credentials, action, self.target)
def test_enforce_http_true(self):
def fakeurlopen(url, post_data):
return StringIO.StringIO("True")
self.stubs.Set(urllib2, 'urlopen', fakeurlopen)
action = "example:get_http"
target = {}
result = rules.enforce(self.credentials, action, target)
self.assertEqual(result, None)
def test_enforce_http_false(self):
def fakeurlopen(url, post_data):
return StringIO.StringIO("False")
self.stubs.Set(urllib2, 'urlopen', fakeurlopen)
action = "example:get_http"
target = {}
self.assertRaises(exception.Forbidden, rules.enforce,
self.credentials, action, target)
def test_templatized_enforcement(self):
target_mine = {'project_id': 'fake'}
target_not_mine = {'project_id': 'another'}
credentials = {'project_id': 'fake', 'roles': []}
action = "example:my_file"
rules.enforce(credentials, action, target_mine)
self.assertRaises(exception.Forbidden, rules.enforce,
credentials, action, target_not_mine)
def test_early_AND_enforcement(self):
action = "example:early_and_fail"
self.assertRaises(exception.Forbidden, rules.enforce,
self.credentials, action, self.target)
def test_early_OR_enforcement(self):
action = "example:early_or_success"
rules.enforce(self.credentials, action, self.target)
def test_ignore_case_role_check(self):
lowercase_action = "example:lowercase_admin"
uppercase_action = "example:uppercase_admin"
# NOTE(dprince) we mix case in the Admin role here to ensure
# case is ignored
admin_credentials = {'roles': ['AdMiN']}
rules.enforce(admin_credentials, lowercase_action, self.target)
rules.enforce(admin_credentials, uppercase_action, self.target)
class DefaultPolicyTestCase(test.TestCase):
def setUp(self):
super(DefaultPolicyTestCase, self).setUp()
rules.reset()
rules.init()
self.brain = {
"default": [],
"example:exist": [["false:false"]]
}
self._set_brain('default')
self.credentials = {}
def _set_brain(self, default_rule):
brain = common_policy.HttpBrain(self.brain, default_rule)
common_policy.set_brain(brain)
def tearDown(self):
super(DefaultPolicyTestCase, self).setUp()
rules.reset()
def test_policy_called(self):
self.assertRaises(exception.Forbidden, rules.enforce,
self.credentials, "example:exist", {})
def test_not_found_policy_calls_default(self):
rules.enforce(self.credentials, "example:noexist", {})
def test_default_not_found(self):
self._set_brain("default_noexist")
self.assertRaises(exception.Forbidden, rules.enforce,
self.credentials, "example:noexist", {})
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