# 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 logging

import fixtures
from keystoneauth1 import adapter
from keystoneauth1 import exceptions as keystone_exception
import mock
import six

import cinderclient.client
import cinderclient.v1.client
import cinderclient.v2.client
from cinderclient import exceptions
from cinderclient.tests.unit import utils


class ClientTest(utils.TestCase):

    def test_get_client_class_v1(self):
        output = cinderclient.client.get_client_class('1')
        self.assertEqual(cinderclient.v1.client.Client, output)

    def test_get_client_class_v2(self):
        output = cinderclient.client.get_client_class('2')
        self.assertEqual(cinderclient.v2.client.Client, output)

    def test_get_client_class_unknown(self):
        self.assertRaises(cinderclient.exceptions.UnsupportedVersion,
                          cinderclient.client.get_client_class, '0')

    @mock.patch.object(cinderclient.client.HTTPClient, '__init__')
    @mock.patch('cinderclient.client.SessionClient')
    def test_construct_http_client_bypass_url(
            self, session_mock, httpclient_mock):
        bypass_url = 'http://example.com/'
        httpclient_mock.return_value = None
        cinderclient.client._construct_http_client(
            bypass_url=bypass_url)
        self.assertTrue(httpclient_mock.called)
        self.assertEqual(bypass_url,
                         httpclient_mock.call_args[1].get('bypass_url'))
        session_mock.assert_not_called()

    def test_log_req(self):
        self.logger = self.useFixture(
            fixtures.FakeLogger(
                format="%(message)s",
                level=logging.DEBUG,
                nuke_handlers=True
            )
        )

        kwargs = {
            'headers': {"X-Foo": "bar"},
            'data': ('{"auth": {"tenantName": "fakeService",'
                     ' "passwordCredentials": {"username": "fakeUser",'
                     ' "password": "fakePassword"}}}')
        }

        cs = cinderclient.client.HTTPClient("user", None, None,
                                            "http://127.0.0.1:5000")
        cs.http_log_debug = True
        cs.http_log_req('PUT', kwargs)

        output = self.logger.output.split('\n')

        self.assertNotIn("fakePassword", output[1])
        self.assertIn("fakeUser", output[1])

    def test_versions(self):
        v1_url = 'http://fakeurl/v1/tenants'
        v2_url = 'http://fakeurl/v2/tenants'
        unknown_url = 'http://fakeurl/v9/tenants'

        self.assertEqual('1',
                         cinderclient.client.get_volume_api_from_url(v1_url))
        self.assertEqual('2',
                         cinderclient.client.get_volume_api_from_url(v2_url))
        self.assertRaises(cinderclient.exceptions.UnsupportedVersion,
                          cinderclient.client.get_volume_api_from_url,
                          unknown_url)

    @mock.patch('cinderclient.client.SessionClient.get_endpoint')
    def test_get_base_url(self, mock_get_endpoint):
        url = 'http://192.168.122.104:8776/v3/de50d1f33a38415fadfd3e1dea28f4d3'
        mock_get_endpoint.return_value = url
        cs = cinderclient.client.SessionClient(self, api_version='3.0')
        self.assertEqual('http://192.168.122.104:8776/', cs._get_base_url())

    @mock.patch.object(cinderclient.client, '_log_request_id')
    @mock.patch.object(adapter.Adapter, 'request')
    @mock.patch.object(exceptions, 'from_response')
    def test_sessionclient_request_method(
            self, mock_from_resp, mock_request, mock_log):
        kwargs = {
            "body": {
                "volume": {
                    "status": "creating",
                    "imageRef": "username",
                    "attach_status": "detached"
                },
                "authenticated": "True"
            }
        }

        resp = {
            "text": {
                "volume": {
                    "status": "creating",
                    "id": "431253c0-e203-4da2-88df-60c756942aaf",
                    "size": 1
                }
            },
            "code": 202
        }

        mock_response = utils.TestResponse({
            "status_code": 202,
            "text": six.b(json.dumps(resp)),
        })

        # 'request' method of Adaptor will return 202 response
        mock_request.return_value = mock_response
        session_client = cinderclient.client.SessionClient(session=mock.Mock())
        response, body = session_client.request(mock.sentinel.url,
                                                'POST', **kwargs)
        self.assertIsNotNone(session_client._logger)
        mock_log.assert_called_once_with(session_client._logger, mock_response,
                                         mock.ANY)

        # In this case, from_response method will not get called
        # because response status_code is < 400
        self.assertEqual(202, response.status_code)
        self.assertFalse(mock_from_resp.called)

    @mock.patch.object(cinderclient.client, '_log_request_id')
    @mock.patch.object(adapter.Adapter, 'request')
    def test_sessionclient_request_method_raises_badrequest(
            self, mock_request, mock_log):
        kwargs = {
            "body": {
                "volume": {
                    "status": "creating",
                    "imageRef": "username",
                    "attach_status": "detached"
                },
                "authenticated": "True"
            }
        }

        resp = {
            "badRequest": {
                "message": "Invalid image identifier or unable to access "
                           "requested image.",
                "code": 400
            }
        }

        mock_response = utils.TestResponse({
            "status_code": 400,
            "text": six.b(json.dumps(resp)),
        })

        # 'request' method of Adaptor will return 400 response
        mock_request.return_value = mock_response
        session_client = cinderclient.client.SessionClient(
            session=mock.Mock())

        # 'from_response' method will raise BadRequest because
        # resp.status_code is 400
        self.assertRaises(exceptions.BadRequest, session_client.request,
                          mock.sentinel.url, 'POST', **kwargs)
        self.assertIsNotNone(session_client._logger)
        mock_log.assert_called_once_with(session_client._logger, mock_response,
                                         mock.ANY)

    @mock.patch.object(cinderclient.client, '_log_request_id')
    @mock.patch.object(adapter.Adapter, 'request')
    def test_sessionclient_request_method_raises_overlimit(
            self, mock_request, mock_log):
        resp = {
            "overLimitFault": {
                "message": "This request was rate-limited.",
                "code": 413
            }
        }

        mock_response = utils.TestResponse({
            "status_code": 413,
            "text": six.b(json.dumps(resp)),
        })

        # 'request' method of Adaptor will return 413 response
        mock_request.return_value = mock_response
        session_client = cinderclient.client.SessionClient(
            session=mock.Mock())

        self.assertRaises(exceptions.OverLimit, session_client.request,
                          mock.sentinel.url, 'GET')
        self.assertIsNotNone(session_client._logger)
        mock_log.assert_called_once_with(session_client._logger, mock_response,
                                         mock.ANY)

    @mock.patch.object(exceptions, 'from_response')
    def test_keystone_request_raises_auth_failure_exception(
            self, mock_from_resp):

        kwargs = {
            "body": {
                "volume": {
                    "status": "creating",
                    "imageRef": "username",
                    "attach_status": "detached"
                },
                "authenticated": "True"
            }
        }

        with mock.patch.object(adapter.Adapter, 'request',
                               side_effect=
                               keystone_exception.AuthorizationFailure()):
            session_client = cinderclient.client.SessionClient(
                session=mock.Mock())
            self.assertRaises(keystone_exception.AuthorizationFailure,
                              session_client.request,
                              mock.sentinel.url, 'POST', **kwargs)

        # As keystonesession.request method will raise
        # AuthorizationFailure exception, check exceptions.from_response
        # is not getting called.
        self.assertFalse(mock_from_resp.called)


class ClientTestSensitiveInfo(utils.TestCase):
    def test_req_does_not_log_sensitive_info(self):
        self.logger = self.useFixture(
            fixtures.FakeLogger(
                format="%(message)s",
                level=logging.DEBUG,
                nuke_handlers=True
            )
        )

        secret_auth_token = "MY_SECRET_AUTH_TOKEN"
        kwargs = {
            'headers': {"X-Auth-Token": secret_auth_token},
            'data': ('{"auth": {"tenantName": "fakeService",'
                     ' "passwordCredentials": {"username": "fakeUser",'
                     ' "password": "fakePassword"}}}')
        }

        cs = cinderclient.client.HTTPClient("user", None, None,
                                            "http://127.0.0.1:5000")
        cs.http_log_debug = True
        cs.http_log_req('PUT', kwargs)

        output = self.logger.output.split('\n')
        self.assertNotIn(secret_auth_token, output[1])