# Copyright 2014 IBM Corp.
#
#    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 keystoneclient.v2_0.client as keystoneclient
from mock import patch
import neutronclient.v2_0.client as neutronclient
from oslo.config import cfg

from tempest.common import isolated_creds
from tempest import config
from tempest import exceptions
from tempest.openstack.common.fixture import mockpatch
from tempest.services.identity.json import identity_client as json_iden_client
from tempest.services.identity.xml import identity_client as xml_iden_client
from tempest.services.network.json import network_client as json_network_client
from tempest.services.network.xml import network_client as xml_network_client
from tempest.tests import base
from tempest.tests import fake_config


class TestTenantIsolation(base.TestCase):

    def setUp(self):
        super(TestTenantIsolation, self).setUp()
        self.useFixture(fake_config.ConfigFixture())
        self.stubs.Set(config, 'TempestConfigPrivate', fake_config.FakePrivate)

    def test_tempest_client(self):
        iso_creds = isolated_creds.IsolatedCreds('test class')
        self.assertTrue(isinstance(iso_creds.identity_admin_client,
                                   json_iden_client.IdentityClientJSON))
        self.assertTrue(isinstance(iso_creds.network_admin_client,
                                   json_network_client.NetworkClientJSON))

    def test_official_client(self):
        self.useFixture(mockpatch.PatchObject(keystoneclient.Client,
                                              'authenticate'))
        iso_creds = isolated_creds.IsolatedCreds('test class',
                                                 tempest_client=False)
        self.assertTrue(isinstance(iso_creds.identity_admin_client,
                                   keystoneclient.Client))
        self.assertTrue(isinstance(iso_creds.network_admin_client,
                                   neutronclient.Client))

    def test_tempest_client_xml(self):
        iso_creds = isolated_creds.IsolatedCreds('test class', interface='xml')
        self.assertEqual(iso_creds.interface, 'xml')
        self.assertTrue(isinstance(iso_creds.identity_admin_client,
                                   xml_iden_client.IdentityClientXML))
        self.assertTrue(isinstance(iso_creds.network_admin_client,
                                   xml_network_client.NetworkClientXML))

    def _mock_user_create(self, id, name):
        user_fix = self.useFixture(mockpatch.PatchObject(
            json_iden_client.IdentityClientJSON,
            'create_user',
            return_value=({'status': 200},
                          {'id': id, 'name': name})))
        return user_fix

    def _mock_tenant_create(self, id, name):
        tenant_fix = self.useFixture(mockpatch.PatchObject(
            json_iden_client.IdentityClientJSON,
            'create_tenant',
            return_value=({'status': 200},
                          {'id': id, 'name': name})))
        return tenant_fix

    def _mock_network_create(self, iso_creds, id, name):
        net_fix = self.useFixture(mockpatch.PatchObject(
            iso_creds.network_admin_client,
            'create_network',
            return_value=({'status': 200},
                          {'network': {'id': id, 'name': name}})))
        return net_fix

    def _mock_subnet_create(self, iso_creds, id, name):
        subnet_fix = self.useFixture(mockpatch.PatchObject(
            iso_creds.network_admin_client,
            'create_subnet',
            return_value=({'status': 200},
                          {'subnet': {'id': id, 'name': name}})))
        return subnet_fix

    def _mock_router_create(self, id, name):
        router_fix = self.useFixture(mockpatch.PatchObject(
            json_network_client.NetworkClientJSON,
            'create_router',
            return_value=({'status': 200},
                          {'router': {'id': id, 'name': name}})))
        return router_fix

    @patch('tempest.common.rest_client.RestClient')
    def test_primary_creds(self, MockRestClient):
        cfg.CONF.set_default('neutron', False, 'service_available')
        iso_creds = isolated_creds.IsolatedCreds('test class',
                                                 password='fake_password')
        self._mock_tenant_create('1234', 'fake_prim_tenant')
        self._mock_user_create('1234', 'fake_prim_user')
        username, tenant_name, password = iso_creds.get_primary_creds()
        self.assertEqual(username, 'fake_prim_user')
        self.assertEqual(tenant_name, 'fake_prim_tenant')
        # Verify helper methods
        tenant = iso_creds.get_primary_tenant()
        user = iso_creds.get_primary_user()
        self.assertEqual(tenant['id'], '1234')
        self.assertEqual(user['id'], '1234')

    @patch('tempest.common.rest_client.RestClient')
    def test_admin_creds(self, MockRestClient):
        cfg.CONF.set_default('neutron', False, 'service_available')
        iso_creds = isolated_creds.IsolatedCreds('test class',
                                                 password='fake_password')
        self._mock_user_create('1234', 'fake_admin_user')
        self._mock_tenant_create('1234', 'fake_admin_tenant')
        self.useFixture(mockpatch.PatchObject(
            json_iden_client.IdentityClientJSON,
            'list_roles',
            return_value=({'status': 200},
                          [{'id': '1234', 'name': 'admin'}])))

        user_mock = patch.object(json_iden_client.IdentityClientJSON,
                                 'assign_user_role')
        user_mock.start()
        self.addCleanup(user_mock.stop)
        with patch.object(json_iden_client.IdentityClientJSON,
                          'assign_user_role') as user_mock:
            username, tenant_name, password = iso_creds.get_admin_creds()
        user_mock.assert_called_once_with('1234', '1234', '1234')
        self.assertEqual(username, 'fake_admin_user')
        self.assertEqual(tenant_name, 'fake_admin_tenant')
        # Verify helper methods
        tenant = iso_creds.get_admin_tenant()
        user = iso_creds.get_admin_user()
        self.assertEqual(tenant['id'], '1234')
        self.assertEqual(user['id'], '1234')

    @patch('tempest.common.rest_client.RestClient')
    def test_all_cred_cleanup(self, MockRestClient):
        cfg.CONF.set_default('neutron', False, 'service_available')
        iso_creds = isolated_creds.IsolatedCreds('test class',
                                                 password='fake_password')
        tenant_fix = self._mock_tenant_create('1234', 'fake_prim_tenant')
        user_fix = self._mock_user_create('1234', 'fake_prim_user')
        username, tenant_name, password = iso_creds.get_primary_creds()
        tenant_fix.cleanUp()
        user_fix.cleanUp()
        tenant_fix = self._mock_tenant_create('12345', 'fake_alt_tenant')
        user_fix = self._mock_user_create('12345', 'fake_alt_user')
        alt_username, alt_tenant, alt_password = iso_creds.get_alt_creds()
        tenant_fix.cleanUp()
        user_fix.cleanUp()
        tenant_fix = self._mock_tenant_create('123456', 'fake_admin_tenant')
        user_fix = self._mock_user_create('123456', 'fake_admin_user')
        self.useFixture(mockpatch.PatchObject(
            json_iden_client.IdentityClientJSON,
            'list_roles',
            return_value=({'status': 200},
                          [{'id': '123456', 'name': 'admin'}])))
        with patch.object(json_iden_client.IdentityClientJSON,
                          'assign_user_role'):
            admin_username, admin_tenant, admin_pass = \
                iso_creds.get_admin_creds()
        user_mock = self.patch(
            'tempest.services.identity.json.identity_client.'
            'IdentityClientJSON.delete_user')
        tenant_mock = self.patch(
            'tempest.services.identity.json.identity_client.'
            'IdentityClientJSON.delete_tenant')
        iso_creds.clear_isolated_creds()
        # Verify user delete calls
        calls = user_mock.mock_calls
        self.assertEqual(len(calls), 3)
        args = map(lambda x: x[1][0], calls)
        self.assertIn('1234', args)
        self.assertIn('12345', args)
        self.assertIn('123456', args)
        # Verify tenant delete calls
        calls = tenant_mock.mock_calls
        self.assertEqual(len(calls), 3)
        args = map(lambda x: x[1][0], calls)
        self.assertIn('1234', args)
        self.assertIn('12345', args)
        self.assertIn('123456', args)

    @patch('tempest.common.rest_client.RestClient')
    def test_alt_creds(self, MockRestClient):
        cfg.CONF.set_default('neutron', False, 'service_available')
        iso_creds = isolated_creds.IsolatedCreds('test class',
                                                 password='fake_password')
        self._mock_user_create('1234', 'fake_alt_user')
        self._mock_tenant_create('1234', 'fake_alt_tenant')
        username, tenant_name, password = iso_creds.get_alt_creds()
        self.assertEqual(username, 'fake_alt_user')
        self.assertEqual(tenant_name, 'fake_alt_tenant')
        # Verify helper methods
        tenant = iso_creds.get_alt_tenant()
        user = iso_creds.get_alt_user()
        self.assertEqual(tenant['id'], '1234')
        self.assertEqual(user['id'], '1234')

    @patch('tempest.common.rest_client.RestClient')
    def test_network_creation(self, MockRestClient):
        iso_creds = isolated_creds.IsolatedCreds('test class',
                                                 password='fake_password')
        self._mock_user_create('1234', 'fake_prim_user')
        self._mock_tenant_create('1234', 'fake_prim_tenant')
        self._mock_network_create(iso_creds, '1234', 'fake_net')
        self._mock_subnet_create(iso_creds, '1234', 'fake_subnet')
        self._mock_router_create('1234', 'fake_router')
        router_interface_mock = self.patch(
            'tempest.services.network.json.network_client.NetworkClientJSON.'
            'add_router_interface_with_subnet_id')
        username, tenant_name, password = iso_creds.get_primary_creds()
        router_interface_mock.called_once_with('1234', '1234')
        network = iso_creds.get_primary_network()
        subnet = iso_creds.get_primary_subnet()
        router = iso_creds.get_primary_router()
        self.assertEqual(network['id'], '1234')
        self.assertEqual(network['name'], 'fake_net')
        self.assertEqual(subnet['id'], '1234')
        self.assertEqual(subnet['name'], 'fake_subnet')
        self.assertEqual(router['id'], '1234')
        self.assertEqual(router['name'], 'fake_router')

    @patch('tempest.common.rest_client.RestClient')
    def test_network_cleanup(self, MockRestClient):
        iso_creds = isolated_creds.IsolatedCreds('test class',
                                                 password='fake_password')
        # Create primary tenant and network
        user_fix = self._mock_user_create('1234', 'fake_prim_user')
        tenant_fix = self._mock_tenant_create('1234', 'fake_prim_tenant')
        net_fix = self._mock_network_create(iso_creds, '1234', 'fake_net')
        subnet_fix = self._mock_subnet_create(iso_creds, '1234', 'fake_subnet')
        router_fix = self._mock_router_create('1234', 'fake_router')
        router_interface_mock = self.patch(
            'tempest.services.network.json.network_client.NetworkClientJSON.'
            'add_router_interface_with_subnet_id')
        username, tenant_name, password = iso_creds.get_primary_creds()
        router_interface_mock.called_once_with('1234', '1234')
        router_interface_mock.reset_mock()
        tenant_fix.cleanUp()
        user_fix.cleanUp()
        net_fix.cleanUp()
        subnet_fix.cleanUp()
        router_fix.cleanUp()
        # Create alternate tenant and network
        user_fix = self._mock_user_create('12345', 'fake_alt_user')
        tenant_fix = self._mock_tenant_create('12345', 'fake_alt_tenant')
        net_fix = self._mock_network_create(iso_creds, '12345', 'fake_alt_net')
        subnet_fix = self._mock_subnet_create(iso_creds, '12345',
                                              'fake_alt_subnet')
        router_fix = self._mock_router_create('12345', 'fake_alt_router')
        alt_username, alt_tenant_name, password = iso_creds.get_alt_creds()
        router_interface_mock.called_once_with('12345', '12345')
        router_interface_mock.reset_mock()
        tenant_fix.cleanUp()
        user_fix.cleanUp()
        net_fix.cleanUp()
        subnet_fix.cleanUp()
        router_fix.cleanUp()
        # Create admin tenant and networks
        user_fix = self._mock_user_create('123456', 'fake_admin_user')
        tenant_fix = self._mock_tenant_create('123456', 'fake_admin_tenant')
        net_fix = self._mock_network_create(iso_creds, '123456',
                                            'fake_admin_net')
        subnet_fix = self._mock_subnet_create(iso_creds, '123456',
                                              'fake_admin_subnet')
        router_fix = self._mock_router_create('123456', 'fake_admin_router')
        self.useFixture(mockpatch.PatchObject(
            json_iden_client.IdentityClientJSON,
            'list_roles',
            return_value=({'status': 200},
                          [{'id': '123456', 'name': 'admin'}])))
        with patch.object(json_iden_client.IdentityClientJSON,
                          'assign_user_role'):
            admin_user, admin_tenant, password = iso_creds.get_admin_creds()
        self.patch('tempest.services.identity.json.identity_client.'
                   'IdentityClientJSON.delete_user')
        self.patch('tempest.services.identity.json.identity_client.'
                   'IdentityClientJSON.delete_tenant')
        net = patch.object(iso_creds.network_admin_client,
                           'delete_network')
        net_mock = net.start()
        subnet = patch.object(iso_creds.network_admin_client,
                              'delete_subnet')
        subnet_mock = subnet.start()
        router = patch.object(iso_creds.network_admin_client,
                              'delete_router')
        router_mock = router.start()
        remove_router_interface_mock = self.patch(
            'tempest.services.network.json.network_client.NetworkClientJSON.'
            'remove_router_interface_with_subnet_id')
        port_list_mock = patch.object(iso_creds.network_admin_client,
                                      'list_ports', return_value=(
                                      {'status': 200}, {'ports': []}))
        port_list_mock.start()
        iso_creds.clear_isolated_creds()
        # Verify remove router interface calls
        calls = remove_router_interface_mock.mock_calls
        self.assertEqual(len(calls), 3)
        args = map(lambda x: x[1], calls)
        self.assertIn(('1234', '1234'), args)
        self.assertIn(('12345', '12345'), args)
        self.assertIn(('123456', '123456'), args)
        # Verify network delete calls
        calls = net_mock.mock_calls
        self.assertEqual(len(calls), 3)
        args = map(lambda x: x[1][0], calls)
        self.assertIn('1234', args)
        self.assertIn('12345', args)
        self.assertIn('123456', args)
        # Verify subnet delete calls
        calls = subnet_mock.mock_calls
        self.assertEqual(len(calls), 3)
        args = map(lambda x: x[1][0], calls)
        self.assertIn('1234', args)
        self.assertIn('12345', args)
        self.assertIn('123456', args)
        # Verify router delete calls
        calls = router_mock.mock_calls
        self.assertEqual(len(calls), 3)
        args = map(lambda x: x[1][0], calls)
        self.assertIn('1234', args)
        self.assertIn('12345', args)
        self.assertIn('123456', args)

    @patch('tempest.common.rest_client.RestClient')
    def test_network_alt_creation(self, MockRestClient):
        iso_creds = isolated_creds.IsolatedCreds('test class',
                                                 password='fake_password')
        self._mock_user_create('1234', 'fake_alt_user')
        self._mock_tenant_create('1234', 'fake_alt_tenant')
        self._mock_network_create(iso_creds, '1234', 'fake_alt_net')
        self._mock_subnet_create(iso_creds, '1234', 'fake_alt_subnet')
        self._mock_router_create('1234', 'fake_alt_router')
        router_interface_mock = self.patch(
            'tempest.services.network.json.network_client.NetworkClientJSON.'
            'add_router_interface_with_subnet_id')
        username, tenant_name, password = iso_creds.get_alt_creds()
        router_interface_mock.called_once_with('1234', '1234')
        network = iso_creds.get_alt_network()
        subnet = iso_creds.get_alt_subnet()
        router = iso_creds.get_alt_router()
        self.assertEqual(network['id'], '1234')
        self.assertEqual(network['name'], 'fake_alt_net')
        self.assertEqual(subnet['id'], '1234')
        self.assertEqual(subnet['name'], 'fake_alt_subnet')
        self.assertEqual(router['id'], '1234')
        self.assertEqual(router['name'], 'fake_alt_router')

    @patch('tempest.common.rest_client.RestClient')
    def test_network_admin_creation(self, MockRestClient):
        iso_creds = isolated_creds.IsolatedCreds('test class',
                                                 password='fake_password')
        self._mock_user_create('1234', 'fake_admin_user')
        self._mock_tenant_create('1234', 'fake_admin_tenant')
        self._mock_network_create(iso_creds, '1234', 'fake_admin_net')
        self._mock_subnet_create(iso_creds, '1234', 'fake_admin_subnet')
        self._mock_router_create('1234', 'fake_admin_router')
        router_interface_mock = self.patch(
            'tempest.services.network.json.network_client.NetworkClientJSON.'
            'add_router_interface_with_subnet_id')
        self.useFixture(mockpatch.PatchObject(
            json_iden_client.IdentityClientJSON,
            'list_roles',
            return_value=({'status': 200},
                          [{'id': '123456', 'name': 'admin'}])))
        with patch.object(json_iden_client.IdentityClientJSON,
                          'assign_user_role'):
            username, tenant_name, password = iso_creds.get_admin_creds()
        router_interface_mock.called_once_with('1234', '1234')
        network = iso_creds.get_admin_network()
        subnet = iso_creds.get_admin_subnet()
        router = iso_creds.get_admin_router()
        self.assertEqual(network['id'], '1234')
        self.assertEqual(network['name'], 'fake_admin_net')
        self.assertEqual(subnet['id'], '1234')
        self.assertEqual(subnet['name'], 'fake_admin_subnet')
        self.assertEqual(router['id'], '1234')
        self.assertEqual(router['name'], 'fake_admin_router')

    @patch('tempest.common.rest_client.RestClient')
    def test_no_network_resources(self, MockRestClient):
        net_dict = {
            'network': False,
            'router': False,
            'subnet': False,
            'dhcp': False,
        }
        iso_creds = isolated_creds.IsolatedCreds('test class',
                                                 password='fake_password',
                                                 network_resources=net_dict)
        self._mock_user_create('1234', 'fake_prim_user')
        self._mock_tenant_create('1234', 'fake_prim_tenant')
        net = patch.object(iso_creds.network_admin_client,
                           'delete_network')
        net_mock = net.start()
        subnet = patch.object(iso_creds.network_admin_client,
                              'delete_subnet')
        subnet_mock = subnet.start()
        router = patch.object(iso_creds.network_admin_client,
                              'delete_router')
        router_mock = router.start()

        username, tenant_name, password = iso_creds.get_primary_creds()
        self.assertEqual(net_mock.mock_calls, [])
        self.assertEqual(subnet_mock.mock_calls, [])
        self.assertEqual(router_mock.mock_calls, [])
        network = iso_creds.get_primary_network()
        subnet = iso_creds.get_primary_subnet()
        router = iso_creds.get_primary_router()
        self.assertIsNone(network)
        self.assertIsNone(subnet)
        self.assertIsNone(router)

    @patch('tempest.common.rest_client.RestClient')
    def test_router_without_network(self, MockRestClient):
        net_dict = {
            'network': False,
            'router': True,
            'subnet': False,
            'dhcp': False,
        }
        iso_creds = isolated_creds.IsolatedCreds('test class',
                                                 password='fake_password',
                                                 network_resources=net_dict)
        self._mock_user_create('1234', 'fake_prim_user')
        self._mock_tenant_create('1234', 'fake_prim_tenant')
        self.assertRaises(exceptions.InvalidConfiguration,
                          iso_creds.get_primary_creds)

    @patch('tempest.common.rest_client.RestClient')
    def test_subnet_without_network(self, MockRestClient):
        net_dict = {
            'network': False,
            'router': False,
            'subnet': True,
            'dhcp': False,
        }
        iso_creds = isolated_creds.IsolatedCreds('test class',
                                                 password='fake_password',
                                                 network_resources=net_dict)
        self._mock_user_create('1234', 'fake_prim_user')
        self._mock_tenant_create('1234', 'fake_prim_tenant')
        self.assertRaises(exceptions.InvalidConfiguration,
                          iso_creds.get_primary_creds)

    @patch('tempest.common.rest_client.RestClient')
    def test_dhcp_without_subnet(self, MockRestClient):
        net_dict = {
            'network': False,
            'router': False,
            'subnet': False,
            'dhcp': True,
        }
        iso_creds = isolated_creds.IsolatedCreds('test class',
                                                 password='fake_password',
                                                 network_resources=net_dict)
        self._mock_user_create('1234', 'fake_prim_user')
        self._mock_tenant_create('1234', 'fake_prim_tenant')
        self.assertRaises(exceptions.InvalidConfiguration,
                          iso_creds.get_primary_creds)