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OpenStack Study: test_policy.py**** CubicPower OpenStack Study ****
# 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 json import tempfile import six from six.moves.urllib import request as urlrequest from testtools import matchers from keystone import config from keystone import exception from keystone.openstack.common.fixture import moxstubout from keystone.openstack.common import policy as common_policy from keystone.policy.backends import rules from keystone import tests CONF = config.CONF
**** CubicPower OpenStack Study **** class PolicyFileTestCase(tests.TestCase):
**** CubicPower OpenStack Study **** def setUp(self): # self.tmpfilename should exist before setUp super is called # this is to ensure it is available for the config_fixture in # the config_overrides call. _unused, self.tmpfilename = tempfile.mkstemp() super(PolicyFileTestCase, self).setUp() rules.reset() self.addCleanup(rules.reset) self.target = {}
**** CubicPower OpenStack Study **** def config_overrides(self): super(PolicyFileTestCase, self).config_overrides() self.config_fixture.config(policy_file=self.tmpfilename)
**** CubicPower OpenStack Study **** 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.ForbiddenAction, rules.enforce, empty_credentials, action, self.target)
**** CubicPower OpenStack Study **** class PolicyTestCase(tests.TestCase):
**** CubicPower OpenStack Study **** def setUp(self): super(PolicyTestCase, self).setUp() rules.reset() self.addCleanup(rules.reset) # NOTE(vish): preload rules to circumvent reloading from file rules.init() self.rules = { "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 policy engine self._set_rules() self.credentials = {} self.target = {} fixture = self.useFixture(moxstubout.MoxStubout()) self.stubs = fixture.stubs
**** CubicPower OpenStack Study **** def _set_rules(self): these_rules = common_policy.Rules( dict((k, common_policy.parse_rule(v)) for k, v in self.rules.items())) rules._ENFORCER.set_rules(these_rules)
**** CubicPower OpenStack Study **** def test_enforce_nonexistent_action_throws(self): action = "example:noexist" self.assertRaises(exception.ForbiddenAction, rules.enforce, self.credentials, action, self.target)
**** CubicPower OpenStack Study **** def test_enforce_bad_action_throws(self): action = "example:denied" self.assertRaises(exception.ForbiddenAction, rules.enforce, self.credentials, action, self.target)
**** CubicPower OpenStack Study **** def test_enforce_good_action(self): action = "example:allowed" rules.enforce(self.credentials, action, self.target)
**** CubicPower OpenStack Study **** def test_enforce_http_true(self): def fakeurlopen(url, post_data): return six.StringIO("True") self.stubs.Set(urlrequest, 'urlopen', fakeurlopen) action = "example:get_http" target = {} result = rules.enforce(self.credentials, action, target) self.assertTrue(result)
**** CubicPower OpenStack Study **** def fakeurlopen(url, post_data): return six.StringIO("True") self.stubs.Set(urlrequest, 'urlopen', fakeurlopen) action = "example:get_http" target = {} result = rules.enforce(self.credentials, action, target) self.assertTrue(result)
**** CubicPower OpenStack Study **** def test_enforce_http_false(self): def fakeurlopen(url, post_data): return six.StringIO("False") self.stubs.Set(urlrequest, 'urlopen', fakeurlopen) action = "example:get_http" target = {} self.assertRaises(exception.ForbiddenAction, rules.enforce, self.credentials, action, target)
**** CubicPower OpenStack Study **** def fakeurlopen(url, post_data): return six.StringIO("False") self.stubs.Set(urlrequest, 'urlopen', fakeurlopen) action = "example:get_http" target = {} self.assertRaises(exception.ForbiddenAction, rules.enforce, self.credentials, action, target)
**** CubicPower OpenStack Study **** 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.ForbiddenAction, rules.enforce, credentials, action, target_not_mine)
**** CubicPower OpenStack Study **** def test_early_AND_enforcement(self): action = "example:early_and_fail" self.assertRaises(exception.ForbiddenAction, rules.enforce, self.credentials, action, self.target)
**** CubicPower OpenStack Study **** def test_early_OR_enforcement(self): action = "example:early_or_success" rules.enforce(self.credentials, action, self.target)
**** CubicPower OpenStack Study **** 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)
**** CubicPower OpenStack Study **** class DefaultPolicyTestCase(tests.TestCase):
**** CubicPower OpenStack Study **** def setUp(self): super(DefaultPolicyTestCase, self).setUp() rules.reset() self.addCleanup(rules.reset) rules.init() self.rules = { "default": [], "example:exist": [["false:false"]] } self._set_rules('default') self.credentials = {} # FIXME(gyee): latest Oslo policy Enforcer class reloads the rules in # its enforce() method even though rules has been initialized via # set_rules(). To make it easier to do our tests, we're going to # monkeypatch load_roles() so it does nothing. This seem like a bug in # Oslo policy as we shoudn't have to reload the rules if they have # already been set using set_rules(). self._old_load_rules = rules._ENFORCER.load_rules self.addCleanup(setattr, rules._ENFORCER, 'load_rules', self._old_load_rules) setattr(rules._ENFORCER, 'load_rules', lambda *args, **kwargs: None)
**** CubicPower OpenStack Study **** def _set_rules(self, default_rule): these_rules = common_policy.Rules( dict((k, common_policy.parse_rule(v)) for k, v in self.rules.items()), default_rule) rules._ENFORCER.set_rules(these_rules)
**** CubicPower OpenStack Study **** def test_policy_called(self): self.assertRaises(exception.ForbiddenAction, rules.enforce, self.credentials, "example:exist", {})
**** CubicPower OpenStack Study **** def test_not_found_policy_calls_default(self): rules.enforce(self.credentials, "example:noexist", {})
**** CubicPower OpenStack Study **** def test_default_not_found(self): new_default_rule = "default_noexist" # FIXME(gyee): need to overwrite the Enforcer's default_rule first # as it is recreating the rules with its own default_rule instead # of the default_rule passed in from set_rules(). I think this is a # bug in Oslo policy. rules._ENFORCER.default_rule = new_default_rule self._set_rules(new_default_rule) self.assertRaises(exception.ForbiddenAction, rules.enforce, self.credentials, "example:noexist", {})
**** CubicPower OpenStack Study **** class PolicyJsonTestCase(tests.TestCase):
**** CubicPower OpenStack Study **** def _load_entries(self, filename): return set(json.load(file(filename)))
**** CubicPower OpenStack Study **** def test_json_examples_have_matching_entries(self): policy_keys = self._load_entries(tests.dirs.etc('policy.json')) cloud_policy_keys = self._load_entries( tests.dirs.etc('policy.v3cloudsample.json')) diffs = set(policy_keys).difference(set(cloud_policy_keys)) self.assertThat(diffs, matchers.Equals(set()))
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