monasca-common/monasca_common/tests/policy/test_policy.py

276 lines
11 KiB
Python

# Copyright 2017 OP5 AB
# 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 mock
import requests_mock
from oslo_context import context
from oslo_policy import policy as os_policy
from monasca_common.policy import policy_engine
from monasca_common.tests.policy import base
class PolicyFileTestCase(base.BaseTestCase):
def setUp(self):
super(PolicyFileTestCase, self).setUp()
self.context = context.RequestContext(user='fake',
tenant='fake',
is_admin=False)
self.target = {}
def test_modified_policy_reloads(self):
tmp_file = \
self.create_tempfiles(files=[('policies', '{}')], ext='.yaml')[0]
base.BaseTestCase.conf_override(policy_file=tmp_file,
group='oslo_policy')
policy_engine.reset()
policy_engine.init()
action = 'example:test'
rule = os_policy.RuleDefault(action, '')
policy_engine._ENFORCER.register_defaults([rule])
with open(tmp_file, 'w') as policy_file:
policy_file.write('{"example:test": ""}')
policy_engine.authorize(self.context, action, self.target)
with open(tmp_file, 'w') as policy_file:
policy_file.write('{"example:test": "!"}')
policy_engine._ENFORCER.load_rules(True)
self.assertRaises(os_policy.PolicyNotAuthorized,
policy_engine.authorize,
self.context, action, self.target)
class PolicyTestCase(base.BaseTestCase):
def setUp(self):
super(PolicyTestCase, self).setUp()
rules = [
os_policy.RuleDefault("true", "@"),
os_policy.RuleDefault("example:allowed", "@"),
os_policy.RuleDefault("example:denied", "!"),
os_policy.RuleDefault("old_action_not_default", "@"),
os_policy.RuleDefault("new_action", "@"),
os_policy.RuleDefault("old_action_default", "rule:admin_api"),
os_policy.RuleDefault("example:lowercase_admin",
"role:admin or role:sysadmin"),
os_policy.RuleDefault("example:uppercase_admin",
"role:ADMIN or role:sysadmin"),
os_policy.RuleDefault("example:get_http",
"http://www.example.com"),
os_policy.RuleDefault("example:my_file",
"role:compute_admin or "
"project_id:%(project_id)s"),
os_policy.RuleDefault("example:early_and_fail", "! and @"),
os_policy.RuleDefault("example:early_or_success", "@ or !"),
]
policy_engine.reset()
policy_engine.init()
self.context = context.RequestContext(user='fake',
tenant='fake',
is_admin=False)
policy_engine._ENFORCER.register_defaults(rules)
self.target = {}
def test_authorize_nonexistent_action_throws(self):
action = 'example:noexists'
self.assertRaises(os_policy.PolicyNotRegistered, policy_engine.authorize,
self.context, action, self.target)
def test_authorize_bad_action_throws(self):
action = 'example:denied'
self.assertRaises(os_policy.PolicyNotAuthorized, policy_engine.authorize,
self.context, action, self.target)
def test_authorize_bad_action_noraise(self):
action = "example:denied"
result = policy_engine.authorize(self.context, action, self.target, False)
self.assertFalse(result)
def test_authorize_good_action(self):
action = "example:allowed"
result = policy_engine.authorize(self.context, action, self.target)
self.assertTrue(result)
@requests_mock.mock()
def test_authorize_http_true(self, req_mock):
req_mock.post('http://www.example.com/',
text='True')
action = "example:get_http"
target = {}
result = policy_engine.authorize(self.context, action, target)
self.assertTrue(result)
@requests_mock.mock()
def test_authorize_http_false(self, req_mock):
req_mock.post('http://www.example.com/',
text='False')
action = "example:get_http"
target = {}
self.assertRaises(os_policy.PolicyNotAuthorized, policy_engine.authorize,
self.context, action, target)
def test_templatized_authorization(self):
target_mine = {'project_id': 'fake'}
target_not_mine = {'project_id': 'another'}
action = "example:my_file"
policy_engine.authorize(self.context, action, target_mine)
self.assertRaises(os_policy.PolicyNotAuthorized, policy_engine.authorize,
self.context, action, target_not_mine)
def test_early_AND_authorization(self):
action = "example:early_and_fail"
self.assertRaises(os_policy.PolicyNotAuthorized, policy_engine.authorize,
self.context, action, self.target)
def test_early_OR_authorization(self):
action = "example:early_or_success"
policy_engine.authorize(self.context, 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_context = context.RequestContext('admin',
'fake',
roles=['AdMiN'])
policy_engine.authorize(admin_context, lowercase_action, self.target)
policy_engine.authorize(admin_context, uppercase_action, self.target)
@mock.patch.object(policy_engine.LOG, 'warning')
def test_warning_when_deprecated_user_based_rule_used(self, mock_warning):
policy_engine._warning_for_deprecated_user_based_rules(
[("os_compute_api:servers:index",
"project_id:%(project_id)s or user_id:%(user_id)s")])
mock_warning.assert_called_once_with(
u"The user_id attribute isn't supported in the rule "
"'%s'. All the user_id based policy enforcement will be removed "
"in the future.", "os_compute_api:servers:index")
@mock.patch.object(policy_engine.LOG, 'warning')
def test_no_warning_for_user_based_resource(self, mock_warning):
policy_engine._warning_for_deprecated_user_based_rules(
[("os_compute_api:os-keypairs:index",
"user_id:%(user_id)s")])
mock_warning.assert_not_called()
@mock.patch.object(policy_engine.LOG, 'warning')
def test_no_warning_for_no_user_based_rule(self, mock_warning):
policy_engine._warning_for_deprecated_user_based_rules(
[("os_compute_api:servers:index",
"project_id:%(project_id)s")])
mock_warning.assert_not_called()
@mock.patch.object(policy_engine.LOG, 'warning')
def test_verify_deprecated_policy_using_old_action(self, mock_warning):
policy_engine._ENFORCER.load_rules(True)
old_policy = "old_action_not_default"
new_policy = "new_action"
default_rule = "rule:admin_api"
using_old_action = policy_engine.verify_deprecated_policy(
old_policy, new_policy, default_rule, self.context)
mock_warning.assert_called_once_with(
"Start using the new action '{0}'. The existing action '{1}' is "
"being deprecated and will be removed in "
"future release.".format(new_policy, old_policy))
self.assertTrue(using_old_action)
def test_verify_deprecated_policy_using_new_action(self):
policy_engine._ENFORCER.load_rules(True)
old_policy = "old_action_default"
new_policy = "new_action"
default_rule = "rule:admin_api"
using_old_action = policy_engine.verify_deprecated_policy(
old_policy, new_policy, default_rule, self.context)
self.assertFalse(using_old_action)
class IsAdminCheckTestCase(base.BaseTestCase):
def setUp(self):
super(IsAdminCheckTestCase, self).setUp()
policy_engine.init()
def test_init_true(self):
check = policy_engine.IsAdminCheck('is_admin', 'True')
self.assertEqual(check.kind, 'is_admin')
self.assertEqual(check.match, 'True')
self.assertTrue(check.expected)
def test_init_false(self):
check = policy_engine.IsAdminCheck('is_admin', 'nottrue')
self.assertEqual(check.kind, 'is_admin')
self.assertEqual(check.match, 'False')
self.assertFalse(check.expected)
def test_call_true(self):
check = policy_engine.IsAdminCheck('is_admin', 'True')
self.assertTrue(check('target', dict(is_admin=True),
policy_engine._ENFORCER))
self.assertFalse(check('target', dict(is_admin=False),
policy_engine._ENFORCER))
def test_call_false(self):
check = policy_engine.IsAdminCheck('is_admin', 'False')
self.assertFalse(check('target', dict(is_admin=True),
policy_engine._ENFORCER))
self.assertTrue(check('target', dict(is_admin=False),
policy_engine._ENFORCER))
class AdminRolePolicyTestCase(base.BaseTestCase):
def setUp(self):
super(AdminRolePolicyTestCase, self).setUp()
self.noadmin_context = context.RequestContext('fake', 'fake',
roles=['member'])
self.admin_context = context.RequestContext('fake', 'fake',
roles=['admin'])
admin_rule = [
os_policy.RuleDefault('example.admin', 'role:admin'),
]
policy_engine.reset()
policy_engine.init(policy_file=None)
policy_engine._ENFORCER.register_defaults(admin_rule)
policy_engine._ENFORCER.load_rules(True)
self.target = {}
def test_authorize_admin_actions_with_admin_context(self):
for action in policy_engine.get_rules().keys():
policy_engine.authorize(self.admin_context, action, self.target)
def test_authorize_admin_actions_with_nonadmin_context_throws(self):
"""Check if non-admin context passed to admin actions throws
Policy not authorized exception
"""
for action in policy_engine.get_rules().keys():
self.assertRaises(os_policy.PolicyNotAuthorized,
policy_engine.authorize,
self.noadmin_context, action, self.target)