text: #!/usr/bin/env
  # Copyright 2016 Amazon.com, Inc. or its affiliates. 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. A copy of
  # the License is located at
  #
  # http://aws.amazon.com/apache2.0/
  #
  # or in the "license" file accompanying this file. This file 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 socket
  
  import botocore.config
  from botocore import args, exceptions
  from botocore.client import ClientEndpointBridge
  from botocore.config import Config
  from botocore.configprovider import ConfigValueStore
  from botocore.hooks import HierarchicalEmitter
  from botocore.model import ServiceModel
  from tests import mock, unittest
  
  
  class TestCreateClientArgs(unittest.TestCase):
      def setUp(self):
          self.event_emitter = mock.Mock(HierarchicalEmitter)
          self.config_store = ConfigValueStore()
          self.args_create = args.ClientArgsCreator(
              self.event_emitter, None, None, None, None, self.config_store)
          self.service_name = 'ec2'
          self.region = 'us-west-2'
          self.endpoint_url = 'https://ec2/'
          self.service_model = self._get_service_model()
          self.bridge = mock.Mock(ClientEndpointBridge)
          self._set_endpoint_bridge_resolve()
          self.default_socket_options = [
              (socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
          ]
  
      def _get_service_model(self, service_name=None):
          if service_name is None:
              service_name = self.service_name
          service_model = mock.Mock(ServiceModel)
          service_model.service_name = service_name
          service_model.endpoint_prefix = service_name
          service_model.metadata = {
              'serviceFullName': 'MyService',
              'protocol': 'query'
          }
          service_model.operation_names = []
          return service_model
  
      def _set_endpoint_bridge_resolve(self, **override_kwargs):
          ret_val = {
              'region_name': self.region,
              'signature_version': 'v4',
              'endpoint_url': self.endpoint_url,
              'signing_name': self.service_name,
              'signing_region': self.region,
              'metadata': {}
          }
          ret_val.update(**override_kwargs)
          self.bridge.resolve.return_value = ret_val
  
      def call_get_client_args(self, **override_kwargs):
          call_kwargs = {
              'service_model': self.service_model,
              'region_name': self.region,
              'is_secure': True,
              'endpoint_url': self.endpoint_url,
              'verify': True,
              'credentials': None,
              'scoped_config': {},
              'client_config': None,
              'endpoint_bridge': self.bridge
          }
          call_kwargs.update(**override_kwargs)
          return self.args_create.get_client_args(**call_kwargs)
  
      def assert_create_endpoint_call(self, mock_endpoint, **override_kwargs):
          call_kwargs = {
              'endpoint_url': self.endpoint_url,
              'region_name': self.region,
              'response_parser_factory': None,
              'timeout': (60, 60),
              'verify': True,
              'max_pool_connections': 10,
              'proxies': None,
              'proxies_config': None,
              'socket_options': self.default_socket_options,
              'client_cert': None,
          }
          call_kwargs.update(**override_kwargs)
          mock_endpoint.return_value.create_endpoint.assert_called_with(
              self.service_model, **call_kwargs
          )
  
      def test_compute_s3_configuration(self):
          self.assertIsNone(self.args_create.compute_s3_config(None))
  
      def test_compute_s3_config_only_config_store(self):
          self.config_store.set_config_variable(
              's3', {'use_accelerate_endpoint': True})
          self.assertEqual(
              self.args_create.compute_s3_config(None),
              {'use_accelerate_endpoint': True}
          )
  
      def test_client_s3_accelerate_from_client_config(self):
          self.assertEqual(
              self.args_create.compute_s3_config(
                  client_config=Config(s3={'use_accelerate_endpoint': True})
              ),
              {'use_accelerate_endpoint': True}
          )
  
      def test_client_s3_accelerate_client_config_overrides_config_store(self):
          self.config_store.set_config_variable(
              's3', {'use_accelerate_endpoint': False})
          self.assertEqual(
              self.args_create.compute_s3_config(
                  client_config=Config(s3={'use_accelerate_endpoint': True})
              ),
              # client_config beats scoped_config
              {'use_accelerate_endpoint': True}
          )
  
      def test_max_pool_from_client_config_forwarded_to_endpoint_creator(self):
          config = botocore.config.Config(max_pool_connections=20)
          with mock.patch('botocore.args.EndpointCreator') as m:
              self.call_get_client_args(client_config=config)
              self.assert_create_endpoint_call(m, max_pool_connections=20)
  
      def test_proxies_from_client_config_forwarded_to_endpoint_creator(self):
          proxies = {'http': 'http://foo.bar:1234',
                     'https': 'https://foo.bar:4321'}
          config = botocore.config.Config(proxies=proxies)
          with mock.patch('botocore.args.EndpointCreator') as m:
              self.call_get_client_args(client_config=config)
              self.assert_create_endpoint_call(m, proxies=proxies)
  
      def test_s3_with_endpoint_url_still_resolves_region(self):
          self.service_model.endpoint_prefix = 's3'
          self.service_model.metadata = {'protocol': 'rest-xml'}
          self.bridge.resolve.side_effect = [
              {
                  'region_name': None, 'signature_version': 's3v4',
                  'endpoint_url': 'http://other.com/', 'signing_name': 's3',
                  'signing_region': None, 'metadata': {}
              },
              {
                  'region_name': 'us-west-2', 'signature_version': 's3v4',
                  'enpoint_url': 'https://s3-us-west-2.amazonaws.com',
                  'signing_name': 's3', 'signing_region': 'us-west-2',
                  'metadata': {}
              }
          ]
          client_args = self.call_get_client_args(
              endpoint_url='http://other.com/')
          self.assertEqual(
              client_args['client_config'].region_name, 'us-west-2')
  
      def test_region_does_not_resolve_if_not_s3_and_endpoint_url_provided(self):
          self.service_model.endpoint_prefix = 'ec2'
          self.service_model.metadata = {'protocol': 'query'}
          self.bridge.resolve.side_effect = [{
              'region_name': None, 'signature_version': 'v4',
              'endpoint_url': 'http://other.com/', 'signing_name': 'ec2',
              'signing_region': None, 'metadata': {}
          }]
          client_args = self.call_get_client_args(
              endpoint_url='http://other.com/')
          self.assertEqual(client_args['client_config'].region_name, None)
  
      def test_tcp_keepalive_enabled(self):
          scoped_config = {'tcp_keepalive': 'true'}
          with mock.patch('botocore.args.EndpointCreator') as m:
              self.call_get_client_args(scoped_config=scoped_config)
              self.assert_create_endpoint_call(
                  m, socket_options=self.default_socket_options + [
                      (socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
                  ]
              )
  
      def test_tcp_keepalive_not_specified(self):
          scoped_config = {}
          with mock.patch('botocore.args.EndpointCreator') as m:
              self.call_get_client_args(scoped_config=scoped_config)
              self.assert_create_endpoint_call(
                  m, socket_options=self.default_socket_options)
  
      def test_tcp_keepalive_explicitly_disabled(self):
          scoped_config = {'tcp_keepalive': 'false'}
          with mock.patch('botocore.args.EndpointCreator') as m:
              self.call_get_client_args(scoped_config=scoped_config)
              self.assert_create_endpoint_call(
                  m, socket_options=self.default_socket_options)
  
      def test_tcp_keepalive_enabled_case_insensitive(self):
          scoped_config = {'tcp_keepalive': 'True'}
          with mock.patch('botocore.args.EndpointCreator') as m:
              self.call_get_client_args(scoped_config=scoped_config)
              self.assert_create_endpoint_call(
                  m, socket_options=self.default_socket_options + [
                      (socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
                  ]
              )
  
      def test_client_config_has_use_dualstack_endpoint_flag(self):
          self._set_endpoint_bridge_resolve(
              metadata={
                  'tags': ['dualstack']
              }
          )
          client_args = self.call_get_client_args(
              service_model=self._get_service_model('ec2'),
          )
          self.assertTrue(client_args['client_config'].use_dualstack_endpoint)
  
      def test_client_config_has_use_fips_endpoint_flag(self):
          self._set_endpoint_bridge_resolve(
              metadata={
                  'tags': ['fips']
              }
          )
          client_args = self.call_get_client_args(
              service_model=self._get_service_model('ec2'),
          )
          self.assertTrue(client_args['client_config'].use_fips_endpoint)
  
      def test_client_config_has_both_use_fips_and_use_dualstack__endpoint_flags(self):
          self._set_endpoint_bridge_resolve(
              metadata={
                  'tags': ['fips', 'dualstack']
              }
          )
          client_args = self.call_get_client_args(
              service_model=self._get_service_model('ec2'),
          )
          self.assertTrue(client_args['client_config'].use_fips_endpoint)
          self.assertTrue(client_args['client_config'].use_dualstack_endpoint)
  
      def test_s3_override_use_dualstack_endpoint_flag(self):
          self._set_endpoint_bridge_resolve(
              metadata={
                  'tags': ['dualstack']
              }
          )
          client_args = self.call_get_client_args(
              service_model=self._get_service_model('s3'),
          )
          self.assertTrue(client_args['client_config'].s3['use_dualstack_endpoint'])
  
      def test_sts_override_resolved_endpoint_for_legacy_region(self):
          self.config_store.set_config_variable(
              'sts_regional_endpoints', 'legacy')
          client_args = self.call_get_client_args(
              service_model=self._get_service_model('sts'),
              region_name='us-west-2', endpoint_url=None
          )
          self.assertEqual(
              client_args['endpoint'].host, 'https://sts.amazonaws.com')
          self.assertEqual(
              client_args['request_signer'].region_name, 'us-east-1')
  
      def test_sts_use_resolved_endpoint_for_nonlegacy_region(self):
          resolved_endpoint = 'https://resolved-endpoint'
          resolved_region = 'resolved-region'
          self._set_endpoint_bridge_resolve(
              endpoint_url=resolved_endpoint,
              signing_region=resolved_region
          )
          self.config_store.set_config_variable(
              'sts_regional_endpoints', 'legacy')
          client_args = self.call_get_client_args(
              service_model=self._get_service_model('sts'),
              region_name='ap-east-1', endpoint_url=None
          )
          self.assertEqual(client_args['endpoint'].host, resolved_endpoint)
          self.assertEqual(
              client_args['request_signer'].region_name, resolved_region)
  
      def test_sts_use_resolved_endpoint_for_regional_configuration(self):
          resolved_endpoint = 'https://resolved-endpoint'
          resolved_region = 'resolved-region'
          self._set_endpoint_bridge_resolve(
              endpoint_url=resolved_endpoint,
              signing_region=resolved_region
          )
          self.config_store.set_config_variable(
              'sts_regional_endpoints', 'regional')
          client_args = self.call_get_client_args(
              service_model=self._get_service_model('sts'),
              region_name='us-west-2', endpoint_url=None
          )
          self.assertEqual(client_args['endpoint'].host, resolved_endpoint)
          self.assertEqual(
              client_args['request_signer'].region_name, resolved_region)
  
      def test_sts_with_endpoint_override_and_legacy_configured(self):
          override_endpoint = 'https://override-endpoint'
          self._set_endpoint_bridge_resolve(endpoint_url=override_endpoint)
          self.config_store.set_config_variable(
              'sts_regional_endpoints', 'legacy')
          client_args = self.call_get_client_args(
              service_model=self._get_service_model('sts'),
              region_name='us-west-2', endpoint_url=override_endpoint
          )
          self.assertEqual(client_args['endpoint'].host, override_endpoint)
  
      def test_sts_http_scheme_for_override_endpoint(self):
          self.config_store.set_config_variable(
              'sts_regional_endpoints', 'legacy')
          client_args = self.call_get_client_args(
              service_model=self._get_service_model('sts'),
              region_name='us-west-2', endpoint_url=None, is_secure=False,
  
          )
          self.assertEqual(
              client_args['endpoint'].host, 'http://sts.amazonaws.com')
  
      def test_sts_regional_endpoints_defaults_to_legacy_if_not_set(self):
          self.config_store.set_config_variable(
              'sts_regional_endpoints', None)
          client_args = self.call_get_client_args(
              service_model=self._get_service_model('sts'),
              region_name='us-west-2', endpoint_url=None
          )
          self.assertEqual(
              client_args['endpoint'].host, 'https://sts.amazonaws.com')
          self.assertEqual(
              client_args['request_signer'].region_name, 'us-east-1')
  
      def test_invalid_sts_regional_endpoints(self):
          self.config_store.set_config_variable(
              'sts_regional_endpoints', 'invalid')
          with self.assertRaises(
                  exceptions.InvalidSTSRegionalEndpointsConfigError):
              self.call_get_client_args(
                  service_model=self._get_service_model('sts'),
                  region_name='us-west-2', endpoint_url=None
              )
  
      def test_provides_total_max_attempts(self):
          config = botocore.config.Config(retries={'total_max_attempts': 10})
          client_args = self.call_get_client_args(client_config=config)
          self.assertEqual(
              client_args['client_config'].retries['total_max_attempts'], 10)
  
      def test_provides_total_max_attempts_has_precedence(self):
          config = botocore.config.Config(retries={'total_max_attempts': 10,
                                                   'max_attempts': 5})
          client_args = self.call_get_client_args(client_config=config)
          self.assertEqual(
              client_args['client_config'].retries['total_max_attempts'], 10)
          self.assertNotIn('max_attempts', client_args['client_config'].retries)
  
      def test_provide_retry_config_maps_total_max_attempts(self):
          config = botocore.config.Config(retries={'max_attempts': 10})
          client_args = self.call_get_client_args(client_config=config)
          self.assertEqual(
              client_args['client_config'].retries['total_max_attempts'], 11)
          self.assertNotIn('max_attempts', client_args['client_config'].retries)
  
      def test_can_merge_max_attempts(self):
          self.config_store.set_config_variable('max_attempts', 4)
          config = self.call_get_client_args()['client_config']
          self.assertEqual(config.retries['total_max_attempts'], 4)
  
      def test_uses_config_value_if_present_for_max_attempts(self):
          config = self.call_get_client_args(
              client_config=Config(retries={'max_attempts': 2})
          )['client_config']
          self.assertEqual(config.retries['total_max_attempts'], 3)
  
      def test_uses_client_config_over_config_store_max_attempts(self):
          self.config_store.set_config_variable('max_attempts', 4)
          config = self.call_get_client_args(
              client_config=Config(retries={'max_attempts': 2})
          )['client_config']
          self.assertEqual(config.retries['total_max_attempts'], 3)
  
      def test_uses_client_config_total_over_config_store_max_attempts(self):
          self.config_store.set_config_variable('max_attempts', 4)
          config = self.call_get_client_args(
              client_config=Config(retries={'total_max_attempts': 2})
          )['client_config']
          self.assertEqual(config.retries['total_max_attempts'], 2)
  
      def test_max_attempts_unset_if_retries_is_none(self):
          config = self.call_get_client_args(
              client_config=Config(retries=None)
          )['client_config']
          self.assertEqual(config.retries, {'mode': 'legacy'})
  
      def test_retry_mode_set_on_config_store(self):
          self.config_store.set_config_variable('retry_mode', 'standard')
          config = self.call_get_client_args()['client_config']
          self.assertEqual(config.retries['mode'], 'standard')
  
      def test_retry_mode_set_on_client_config(self):
          config = self.call_get_client_args(
              client_config=Config(retries={'mode': 'standard'})
          )['client_config']
          self.assertEqual(config.retries['mode'], 'standard')
  
      def test_connect_timeout_set_on_config_store(self):
          self.config_store.set_config_variable('connect_timeout', 10)
          config = self.call_get_client_args(
              client_config=Config(defaults_mode='standard')
          )['client_config']
          self.assertEqual(config.connect_timeout, 10)
  
      def test_connnect_timeout_set_on_client_config(self):
          config = self.call_get_client_args(
              client_config=Config(connect_timeout=10)
          )['client_config']
          self.assertEqual(config.connect_timeout, 10)
  
      def test_connnect_timeout_set_to_client_config_default(self):
          config = self.call_get_client_args()['client_config']
          self.assertEqual(config.connect_timeout, 60)
  
      def test_client_config_beats_config_store(self):
          self.config_store.set_config_variable('retry_mode', 'adaptive')
          config = self.call_get_client_args(
              client_config=Config(retries={'mode': 'standard'})
          )['client_config']
          self.assertEqual(config.retries['mode'], 'standard')
  