# Copyright 2017 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. from datetime import datetime import re import mock from tests import BaseSessionTest from tests import temporary_file from tests import assert_url_equal from tests import ClientHTTPStubber from botocore.stub import Stubber _V4_SIGNING_REGION_REGEX = re.compile( r'AWS4-HMAC-SHA256 ' r'Credential=\w+/\d+/(?P[a-z0-9-]+)/' ) class TestSTSPresignedUrl(BaseSessionTest): def setUp(self): super(TestSTSPresignedUrl, self).setUp() self.client = self.session.create_client('sts', 'us-west-2') # Makes sure that no requests will go through self.stubber = Stubber(self.client) self.stubber.activate() def test_presigned_url_contains_no_content_type(self): timestamp = datetime(2017, 3, 22, 0, 0) with mock.patch('botocore.auth.datetime') as _datetime: _datetime.datetime.utcnow.return_value = timestamp url = self.client.generate_presigned_url('get_caller_identity', {}) # There should be no 'content-type' in x-amz-signedheaders expected_url = ( 'https://sts.amazonaws.com/?Action=GetCallerIdentity&' 'Version=2011-06-15&X-Amz-Algorithm=AWS4-HMAC-SHA256&' 'X-Amz-Credential=access_key%2F20170322%2Fus-east-1%2Fsts%2F' 'aws4_request&X-Amz-Date=20170322T000000Z&X-Amz-Expires=3600&' 'X-Amz-SignedHeaders=host&X-Amz-Signature=767845d2ee858069a598d5f' '8b497b75c7d57356885b1b3dba46dbbc0fc62bf5a' ) assert_url_equal(url, expected_url) class TestSTSEndpoints(BaseSessionTest): def create_sts_client(self, region, endpoint_url=None, use_ssl=True): return self.session.create_client( 'sts', region_name=region, endpoint_url=endpoint_url, use_ssl=use_ssl, ) def set_sts_regional_for_config_file(self, fileobj, config_val): fileobj.write( '[default]\n' 'sts_regional_endpoints=%s\n' % config_val ) fileobj.flush() self.environ['AWS_CONFIG_FILE'] = fileobj.name def assert_request_sent(self, sts, expected_url, expected_signing_region=None): body = ( b'' b' ' b' arn:aws:iam::123456789012:user/myuser' b' UserID' b' 123456789012' b' ' b' ' b' some-request' b' ' b'' ) with ClientHTTPStubber(sts) as http_stubber: http_stubber.add_response(body=body) sts.get_caller_identity() captured_request = http_stubber.requests[0] self.assertEqual(captured_request.url, expected_url) if expected_signing_region: self.assertEqual( self._get_signing_region(captured_request), expected_signing_region ) def _get_signing_region(self, request): authorization_val = request.headers['Authorization'].decode('utf-8') match = _V4_SIGNING_REGION_REGEX.match(authorization_val) return match.group('signing_region') def test_legacy_region_with_legacy_configured(self): self.environ['AWS_STS_REGIONAL_ENDPOINTS'] = 'legacy' sts = self.create_sts_client('us-west-2') self.assert_request_sent( sts, expected_url='https://sts.amazonaws.com/', expected_signing_region='us-east-1' ) def test_legacy_region_with_regional_configured(self): self.environ['AWS_STS_REGIONAL_ENDPOINTS'] = 'regional' sts = self.create_sts_client('us-west-2') self.assert_request_sent( sts, expected_url='https://sts.us-west-2.amazonaws.com/', expected_signing_region='us-west-2' ) def test_fips_endpoint_with_legacy_configured(self): self.environ['AWS_STS_REGIONAL_ENDPOINTS'] = 'legacy' sts = self.create_sts_client('us-west-2-fips') self.assert_request_sent( sts, expected_url='https://sts-fips.us-west-2.amazonaws.com/', expected_signing_region='us-west-2' ) def test_fips_endpoint_with_regional_configured(self): self.environ['AWS_STS_REGIONAL_ENDPOINTS'] = 'regional' sts = self.create_sts_client('us-west-2-fips') self.assert_request_sent( sts, expected_url='https://sts-fips.us-west-2.amazonaws.com/', expected_signing_region='us-west-2' ) def test_nonlegacy_region_with_legacy_configured(self): self.environ['AWS_STS_REGIONAL_ENDPOINTS'] = 'legacy' sts = self.create_sts_client('ap-east-1') self.assert_request_sent( sts, expected_url='https://sts.ap-east-1.amazonaws.com/', expected_signing_region='ap-east-1' ) def test_nonlegacy_region_with_regional_configured(self): self.environ['AWS_STS_REGIONAL_ENDPOINTS'] = 'regional' sts = self.create_sts_client('ap-east-1') self.assert_request_sent( sts, expected_url='https://sts.ap-east-1.amazonaws.com/', expected_signing_region='ap-east-1' ) def test_nonaws_partition_region_with_legacy_configured(self): self.environ['AWS_STS_REGIONAL_ENDPOINTS'] = 'legacy' sts = self.create_sts_client('cn-north-1') self.assert_request_sent( sts, expected_url='https://sts.cn-north-1.amazonaws.com.cn/', expected_signing_region='cn-north-1' ) def test_nonaws_partition_region_with_regional_configured(self): self.environ['AWS_STS_REGIONAL_ENDPOINTS'] = 'regional' sts = self.create_sts_client('cn-north-1') self.assert_request_sent( sts, expected_url='https://sts.cn-north-1.amazonaws.com.cn/', expected_signing_region='cn-north-1' ) def test_global_region_with_legacy_configured(self): self.environ['AWS_STS_REGIONAL_ENDPOINTS'] = 'legacy' sts = self.create_sts_client('aws-global') self.assert_request_sent( sts, expected_url='https://sts.amazonaws.com/', expected_signing_region='us-east-1', ) def test_global_region_with_regional_configured(self): self.environ['AWS_STS_REGIONAL_ENDPOINTS'] = 'regional' sts = self.create_sts_client('aws-global') self.assert_request_sent( sts, expected_url='https://sts.amazonaws.com/', expected_signing_region='us-east-1' ) def test_defaults_to_global_endpoint_for_legacy_region(self): sts = self.create_sts_client('us-west-2') self.assert_request_sent( sts, expected_url='https://sts.amazonaws.com/', expected_signing_region='us-east-1' ) def test_defaults_to_regional_endpoint_for_nonlegacy_region(self): sts = self.create_sts_client('ap-east-1') self.assert_request_sent( sts, expected_url='https://sts.ap-east-1.amazonaws.com/', expected_signing_region='ap-east-1' ) def test_configure_sts_regional_from_config_file(self): with temporary_file('w') as f: self.set_sts_regional_for_config_file(f, 'regional') sts = self.create_sts_client('us-west-2') self.assert_request_sent( sts, expected_url='https://sts.us-west-2.amazonaws.com/', ) def test_env_var_overrides_config_file(self): self.environ['AWS_STS_REGIONAL_ENDPOINTS'] = 'legacy' with temporary_file('w') as f: self.set_sts_regional_for_config_file(f, 'regional') sts = self.create_sts_client('us-west-2') self.assert_request_sent( sts, expected_url='https://sts.amazonaws.com/') def test_user_provided_endpoint_with_legacy_configured(self): self.environ['AWS_STS_REGIONAL_ENDPOINTS'] = 'legacy' sts = self.create_sts_client( 'us-west-2', endpoint_url='https://custom.com') self.assert_request_sent( sts, expected_url='https://custom.com/') def test_user_provided_endpoint_with_regional_configured(self): self.environ['AWS_STS_REGIONAL_ENDPOINTS'] = 'regional' sts = self.create_sts_client( 'us-west-2', endpoint_url='https://custom.com') self.assert_request_sent( sts, expected_url='https://custom.com/') def test_http_with_legacy_configured(self): self.environ['AWS_STS_REGIONAL_ENDPOINTS'] = 'legacy' sts = self.create_sts_client( 'us-west-2', use_ssl=False) self.assert_request_sent( sts, expected_url='http://sts.amazonaws.com/') def test_client_for_unknown_region(self): sts = self.create_sts_client('not-real') self.assert_request_sent( sts, expected_url='https://sts.not-real.amazonaws.com/', expected_signing_region='not-real' ) def test_client_for_unknown_region_with_legacy_configured(self): self.environ['AWS_STS_REGIONAL_ENDPOINTS'] = 'legacy' sts = self.create_sts_client('not-real') self.assert_request_sent( sts,expected_url='https://sts.not-real.amazonaws.com/') def test_client_for_unknown_region_with_regional_configured(self): self.environ['AWS_STS_REGIONAL_ENDPOINTS'] = 'regional' sts = self.create_sts_client('not-real') self.assert_request_sent( sts, expected_url='https://sts.not-real.amazonaws.com/', expected_signing_region='not-real' )