318 lines
12 KiB
Python
318 lines
12 KiB
Python
# Copyright (c) 2012 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.
|
|
|
|
"""Test of Policy Engine For Quantum"""
|
|
|
|
import contextlib
|
|
import os.path
|
|
import shutil
|
|
import StringIO
|
|
import tempfile
|
|
import urllib2
|
|
|
|
import mock
|
|
import testtools
|
|
|
|
import quantum
|
|
from quantum.common import exceptions
|
|
from quantum import context
|
|
from quantum.openstack.common import importutils
|
|
from quantum.openstack.common import policy as common_policy
|
|
from quantum import policy
|
|
|
|
|
|
class PolicyFileTestCase(testtools.TestCase):
|
|
def setUp(self):
|
|
super(PolicyFileTestCase, self).setUp()
|
|
policy.reset()
|
|
self.addCleanup(policy.reset)
|
|
self.context = context.Context('fake', 'fake')
|
|
self.target = {}
|
|
|
|
@contextlib.contextmanager
|
|
def _tempdir(self, **kwargs):
|
|
tmpdir = tempfile.mkdtemp(**kwargs)
|
|
try:
|
|
yield tmpdir
|
|
finally:
|
|
try:
|
|
shutil.rmtree(tmpdir)
|
|
except OSError, e:
|
|
#TODO: fail test on raise
|
|
pass
|
|
|
|
def test_modified_policy_reloads(self):
|
|
with self._tempdir() as tmpdir:
|
|
def fake_find_config_file(_1, _2):
|
|
return os.path.join(tmpdir, 'policy')
|
|
|
|
with mock.patch.object(quantum.common.utils,
|
|
'find_config_file',
|
|
new=fake_find_config_file):
|
|
tmpfilename = os.path.join(tmpdir, 'policy')
|
|
action = "example:test"
|
|
with open(tmpfilename, "w") as policyfile:
|
|
policyfile.write("""{"example:test": ""}""")
|
|
policy.enforce(self.context, action, self.target)
|
|
with open(tmpfilename, "w") as policyfile:
|
|
policyfile.write("""{"example:test": "!"}""")
|
|
# NOTE(vish): reset stored policy cache so we don't have to
|
|
# sleep(1)
|
|
policy._POLICY_CACHE = {}
|
|
self.assertRaises(exceptions.PolicyNotAuthorized,
|
|
policy.enforce,
|
|
self.context,
|
|
action,
|
|
self.target)
|
|
|
|
|
|
class PolicyTestCase(testtools.TestCase):
|
|
def setUp(self):
|
|
super(PolicyTestCase, self).setUp()
|
|
policy.reset()
|
|
self.addCleanup(policy.reset)
|
|
# NOTE(vish): preload rules to circumvent reloading from file
|
|
policy.init()
|
|
rules = {
|
|
"true": '@',
|
|
"example:allowed": '@',
|
|
"example:denied": '!',
|
|
"example:get_http": "http:http://www.example.com",
|
|
"example:my_file": "role:compute_admin or tenant_id:%(tenant_id)s",
|
|
"example:early_and_fail": "! and @",
|
|
"example:early_or_success": "@ or !",
|
|
"example:lowercase_admin": "role:admin or role:sysadmin",
|
|
"example:uppercase_admin": "role:ADMIN or role:sysadmin",
|
|
}
|
|
# NOTE(vish): then overload underlying rules
|
|
common_policy.set_rules(common_policy.Rules(
|
|
dict((k, common_policy.parse_rule(v))
|
|
for k, v in rules.items())))
|
|
self.context = context.Context('fake', 'fake', roles=['member'])
|
|
self.target = {}
|
|
|
|
def test_enforce_nonexistent_action_throws(self):
|
|
action = "example:noexist"
|
|
self.assertRaises(exceptions.PolicyNotAuthorized, policy.enforce,
|
|
self.context, action, self.target)
|
|
|
|
def test_enforce_bad_action_throws(self):
|
|
action = "example:denied"
|
|
self.assertRaises(exceptions.PolicyNotAuthorized, policy.enforce,
|
|
self.context, action, self.target)
|
|
|
|
def test_check_bad_action_noraise(self):
|
|
action = "example:denied"
|
|
result = policy.check(self.context, action, self.target)
|
|
self.assertEqual(result, False)
|
|
|
|
def test_enforce_good_action(self):
|
|
action = "example:allowed"
|
|
result = policy.enforce(self.context, action, self.target)
|
|
self.assertEqual(result, True)
|
|
|
|
def test_enforce_http_true(self):
|
|
|
|
def fakeurlopen(url, post_data):
|
|
return StringIO.StringIO("True")
|
|
|
|
with mock.patch.object(urllib2, 'urlopen', new=fakeurlopen):
|
|
action = "example:get_http"
|
|
target = {}
|
|
result = policy.enforce(self.context, action, target)
|
|
self.assertEqual(result, True)
|
|
|
|
def test_enforce_http_false(self):
|
|
|
|
def fakeurlopen(url, post_data):
|
|
return StringIO.StringIO("False")
|
|
|
|
with mock.patch.object(urllib2, 'urlopen', new=fakeurlopen):
|
|
action = "example:get_http"
|
|
target = {}
|
|
self.assertRaises(exceptions.PolicyNotAuthorized, policy.enforce,
|
|
self.context, action, target)
|
|
|
|
def test_templatized_enforcement(self):
|
|
target_mine = {'tenant_id': 'fake'}
|
|
target_not_mine = {'tenant_id': 'another'}
|
|
action = "example:my_file"
|
|
policy.enforce(self.context, action, target_mine)
|
|
self.assertRaises(exceptions.PolicyNotAuthorized, policy.enforce,
|
|
self.context, action, target_not_mine)
|
|
|
|
def test_early_AND_enforcement(self):
|
|
action = "example:early_and_fail"
|
|
self.assertRaises(exceptions.PolicyNotAuthorized, policy.enforce,
|
|
self.context, action, self.target)
|
|
|
|
def test_early_OR_enforcement(self):
|
|
action = "example:early_or_success"
|
|
policy.enforce(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.Context('admin', 'fake', roles=['AdMiN'])
|
|
policy.enforce(admin_context, lowercase_action, self.target)
|
|
policy.enforce(admin_context, uppercase_action, self.target)
|
|
|
|
|
|
class DefaultPolicyTestCase(testtools.TestCase):
|
|
|
|
def setUp(self):
|
|
super(DefaultPolicyTestCase, self).setUp()
|
|
policy.reset()
|
|
policy.init()
|
|
self.addCleanup(policy.reset)
|
|
|
|
self.rules = {
|
|
"default": '',
|
|
"example:exist": '!',
|
|
}
|
|
|
|
self._set_rules('default')
|
|
|
|
self.context = context.Context('fake', 'fake')
|
|
|
|
def _set_rules(self, default_rule):
|
|
rules = common_policy.Rules(
|
|
dict((k, common_policy.parse_rule(v))
|
|
for k, v in self.rules.items()), default_rule)
|
|
common_policy.set_rules(rules)
|
|
|
|
def test_policy_called(self):
|
|
self.assertRaises(exceptions.PolicyNotAuthorized, policy.enforce,
|
|
self.context, "example:exist", {})
|
|
|
|
def test_not_found_policy_calls_default(self):
|
|
policy.enforce(self.context, "example:noexist", {})
|
|
|
|
def test_default_not_found(self):
|
|
self._set_rules("default_noexist")
|
|
self.assertRaises(exceptions.PolicyNotAuthorized, policy.enforce,
|
|
self.context, "example:noexist", {})
|
|
|
|
|
|
class QuantumPolicyTestCase(testtools.TestCase):
|
|
|
|
def setUp(self):
|
|
super(QuantumPolicyTestCase, self).setUp()
|
|
policy.reset()
|
|
policy.init()
|
|
self.addCleanup(policy.reset)
|
|
self.rules = dict((k, common_policy.parse_rule(v)) for k, v in {
|
|
"admin_or_network_owner": "role:admin or "
|
|
"tenant_id:%(network_tenant_id)s",
|
|
"admin_or_owner": "role:admin or tenant_id:%(tenant_id)s",
|
|
"admin_only": "role:admin",
|
|
"regular_user": "role:user",
|
|
"shared": "field:networks:shared=True",
|
|
"external": "field:networks:router:external=True",
|
|
"default": '@',
|
|
|
|
"create_network": "rule:admin_or_owner",
|
|
"create_network:shared": "rule:admin_only",
|
|
"update_network": '@',
|
|
"update_network:shared": "rule:admin_only",
|
|
|
|
"get_network": "rule:admin_or_owner or "
|
|
"rule:shared or "
|
|
"rule:external",
|
|
"create_port:mac": "rule:admin_or_network_owner",
|
|
}.items())
|
|
|
|
def fakepolicyinit():
|
|
common_policy.set_rules(common_policy.Rules(self.rules))
|
|
|
|
self.patcher = mock.patch.object(quantum.policy,
|
|
'init',
|
|
new=fakepolicyinit)
|
|
self.patcher.start()
|
|
self.addCleanup(self.patcher.stop)
|
|
self.context = context.Context('fake', 'fake', roles=['user'])
|
|
plugin_klass = importutils.import_class(
|
|
"quantum.db.db_base_plugin_v2.QuantumDbPluginV2")
|
|
self.plugin = plugin_klass()
|
|
|
|
def _test_action_on_attr(self, context, action, attr, value,
|
|
exception=None):
|
|
action = "%s_network" % action
|
|
target = {'tenant_id': 'the_owner', attr: value}
|
|
if exception:
|
|
self.assertRaises(exception, policy.enforce,
|
|
context, action, target, None)
|
|
else:
|
|
result = policy.enforce(context, action, target, None)
|
|
self.assertEqual(result, True)
|
|
|
|
def _test_nonadmin_action_on_attr(self, action, attr, value,
|
|
exception=None):
|
|
user_context = context.Context('', "user", roles=['user'])
|
|
self._test_action_on_attr(user_context, action, attr,
|
|
value, exception)
|
|
|
|
def test_nonadmin_write_on_private_fails(self):
|
|
self._test_nonadmin_action_on_attr('create', 'shared', False,
|
|
exceptions.PolicyNotAuthorized)
|
|
|
|
def test_nonadmin_read_on_private_fails(self):
|
|
self._test_nonadmin_action_on_attr('get', 'shared', False,
|
|
exceptions.PolicyNotAuthorized)
|
|
|
|
def test_nonadmin_write_on_shared_fails(self):
|
|
self._test_nonadmin_action_on_attr('create', 'shared', True,
|
|
exceptions.PolicyNotAuthorized)
|
|
|
|
def test_nonadmin_read_on_shared_succeeds(self):
|
|
self._test_nonadmin_action_on_attr('get', 'shared', True)
|
|
|
|
def _test_enforce_adminonly_attribute(self, action):
|
|
admin_context = context.get_admin_context()
|
|
target = {'shared': True}
|
|
result = policy.enforce(admin_context, action, target, None)
|
|
self.assertEqual(result, True)
|
|
|
|
def test_enforce_adminonly_attribute_create(self):
|
|
self._test_enforce_adminonly_attribute('create_network')
|
|
|
|
def test_enforce_adminonly_attribute_update(self):
|
|
self._test_enforce_adminonly_attribute('update_network')
|
|
|
|
def test_enforce_adminonly_attribute_nonadminctx_returns_403(self):
|
|
action = "create_network"
|
|
target = {'shared': True, 'tenant_id': 'somebody_else'}
|
|
self.assertRaises(exceptions.PolicyNotAuthorized, policy.enforce,
|
|
self.context, action, target, None)
|
|
|
|
def test_enforce_regularuser_on_read(self):
|
|
action = "get_network"
|
|
target = {'shared': True, 'tenant_id': 'somebody_else'}
|
|
result = policy.enforce(self.context, action, target, None)
|
|
self.assertTrue(result)
|
|
|
|
def test_enforce_parentresource_owner(self):
|
|
|
|
def fakegetnetwork(*args, **kwargs):
|
|
return {'tenant_id': 'fake'}
|
|
|
|
action = "create_port:mac"
|
|
with mock.patch.object(self.plugin, 'get_network', new=fakegetnetwork):
|
|
target = {'network_id': 'whatever'}
|
|
result = policy.enforce(self.context, action, target, self.plugin)
|
|
self.assertTrue(result)
|