426 lines
16 KiB
Python
426 lines
16 KiB
Python
import socket
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import pytest
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from urllib3.exceptions import NewConnectionError, ProtocolError
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from tests import mock, unittest
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from botocore.vendored import six
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from botocore.awsrequest import AWSRequest
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from botocore.awsrequest import AWSHTTPConnectionPool, AWSHTTPSConnectionPool
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from botocore.httpsession import get_cert_path
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from botocore.httpsession import URLLib3Session, ProxyConfiguration
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from botocore.exceptions import ConnectionClosedError, EndpointConnectionError
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class TestProxyConfiguration(unittest.TestCase):
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def setUp(self):
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self.url = 'http://localhost/'
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self.auth_url = 'http://user:pass@localhost/'
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self.proxy_config = ProxyConfiguration(
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proxies={'http': 'http://localhost:8081/'}
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)
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def update_http_proxy(self, url):
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self.proxy_config = ProxyConfiguration(
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proxies={'http': url}
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)
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def test_construct_proxy_headers_with_auth(self):
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headers = self.proxy_config.proxy_headers_for(self.auth_url)
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proxy_auth = headers.get('Proxy-Authorization')
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self.assertEqual('Basic dXNlcjpwYXNz', proxy_auth)
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def test_construct_proxy_headers_without_auth(self):
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headers = self.proxy_config.proxy_headers_for(self.url)
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self.assertEqual({}, headers)
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def test_proxy_for_url_no_slashes(self):
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self.update_http_proxy('localhost:8081/')
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proxy_url = self.proxy_config.proxy_url_for(self.url)
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self.assertEqual('http://localhost:8081/', proxy_url)
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def test_proxy_for_url_no_protocol(self):
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self.update_http_proxy('//localhost:8081/')
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proxy_url = self.proxy_config.proxy_url_for(self.url)
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self.assertEqual('http://localhost:8081/', proxy_url)
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def test_fix_proxy_url_has_protocol_http(self):
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proxy_url = self.proxy_config.proxy_url_for(self.url)
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self.assertEqual('http://localhost:8081/', proxy_url)
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class TestHttpSessionUtils(unittest.TestCase):
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def test_get_cert_path_path(self):
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path = '/some/path'
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cert_path = get_cert_path(path)
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self.assertEqual(path, cert_path)
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def test_get_cert_path_certifi_or_default(self):
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with mock.patch('botocore.httpsession.where') as where:
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path = '/bundle/path'
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where.return_value = path
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cert_path = get_cert_path(True)
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self.assertEqual(path, cert_path)
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class TestURLLib3Session(unittest.TestCase):
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def setUp(self):
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self.request = AWSRequest(
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method='GET',
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url='http://example.com/',
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headers={},
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data=b'',
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)
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self.response = mock.Mock()
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self.response.headers = {}
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self.response.stream.return_value = b''
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self.pool_manager = mock.Mock()
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self.connection = mock.Mock()
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self.connection.urlopen.return_value = self.response
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self.pool_manager.connection_from_url.return_value = self.connection
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self.pool_patch = mock.patch('botocore.httpsession.PoolManager')
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self.proxy_patch = mock.patch('botocore.httpsession.proxy_from_url')
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self.pool_manager_cls = self.pool_patch.start()
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self.proxy_manager_fun = self.proxy_patch.start()
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self.pool_manager_cls.return_value = self.pool_manager
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self.proxy_manager_fun.return_value = self.pool_manager
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def tearDown(self):
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self.pool_patch.stop()
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self.proxy_patch.stop()
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def assert_request_sent(self, headers=None, body=None, url='/', chunked=False):
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if headers is None:
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headers = {}
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self.connection.urlopen.assert_called_once_with(
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method=self.request.method,
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url=url,
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body=body,
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headers=headers,
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retries=mock.ANY,
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assert_same_host=False,
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preload_content=False,
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decode_content=False,
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chunked=chunked,
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)
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def _assert_manager_call(self, manager, *assert_args, **assert_kwargs):
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call_kwargs = {
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'strict': True,
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'maxsize': mock.ANY,
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'timeout': mock.ANY,
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'ssl_context': mock.ANY,
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'socket_options': [],
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'cert_file': None,
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'key_file': None,
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}
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call_kwargs.update(assert_kwargs)
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manager.assert_called_with(*assert_args, **call_kwargs)
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def assert_pool_manager_call(self, *args, **kwargs):
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self._assert_manager_call(self.pool_manager_cls, *args, **kwargs)
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def assert_proxy_manager_call(self, *args, **kwargs):
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self._assert_manager_call(self.proxy_manager_fun, *args, **kwargs)
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def test_forwards_max_pool_size(self):
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URLLib3Session(max_pool_connections=22)
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self.assert_pool_manager_call(maxsize=22)
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def test_forwards_client_cert(self):
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URLLib3Session(client_cert='/some/cert')
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self.assert_pool_manager_call(cert_file='/some/cert', key_file=None)
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def test_forwards_client_cert_and_key_tuple(self):
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cert = ('/some/cert', '/some/key')
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URLLib3Session(client_cert=cert)
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self.assert_pool_manager_call(cert_file=cert[0], key_file=cert[1])
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def test_proxies_config_settings(self):
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proxies = {'http': 'http://proxy.com'}
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proxies_config = {
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'proxy_ca_bundle': 'path/to/bundle',
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'proxy_client_cert': ('path/to/cert', 'path/to/key'),
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'proxy_use_forwarding_for_https': False,
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}
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use_forwarding = proxies_config['proxy_use_forwarding_for_https']
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with mock.patch('botocore.httpsession.create_urllib3_context'):
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session = URLLib3Session(
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proxies=proxies,
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proxies_config=proxies_config
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)
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self.request.url = 'http://example.com/'
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session.send(self.request.prepare())
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self.assert_proxy_manager_call(
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proxies['http'],
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proxy_headers={},
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proxy_ssl_context=mock.ANY,
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use_forwarding_for_https=use_forwarding
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)
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self.assert_request_sent(url=self.request.url)
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def test_proxies_config_settings_unknown_config(self):
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proxies = {'http': 'http://proxy.com'}
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proxies_config = {
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'proxy_ca_bundle': None,
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'proxy_client_cert': None,
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'proxy_use_forwarding_for_https': True,
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'proxy_not_a_real_arg': 'do not pass'
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}
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use_forwarding = proxies_config['proxy_use_forwarding_for_https']
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session = URLLib3Session(
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proxies=proxies,
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proxies_config=proxies_config
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)
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self.request.url = 'http://example.com/'
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session.send(self.request.prepare())
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self.assert_proxy_manager_call(
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proxies['http'],
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proxy_headers={},
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use_forwarding_for_https=use_forwarding
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)
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self.assertNotIn(
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'proxy_not_a_real_arg',
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self.proxy_manager_fun.call_args
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)
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self.assert_request_sent(url=self.request.url)
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def test_http_proxy_scheme_with_http_url(self):
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proxies = {'http': 'http://proxy.com'}
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session = URLLib3Session(proxies=proxies)
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self.request.url = 'http://example.com/'
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session.send(self.request.prepare())
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self.assert_proxy_manager_call(
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proxies['http'],
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proxy_headers={},
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)
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self.assert_request_sent(url=self.request.url)
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def test_http_proxy_scheme_with_https_url(self):
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proxies = {'https': 'http://proxy.com'}
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session = URLLib3Session(proxies=proxies)
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self.request.url = 'https://example.com/'
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session.send(self.request.prepare())
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self.assert_proxy_manager_call(
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proxies['https'],
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proxy_headers={},
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)
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self.assert_request_sent()
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def test_https_proxy_scheme_with_http_url(self):
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proxies = {'http': 'https://proxy.com'}
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session = URLLib3Session(proxies=proxies)
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self.request.url = 'http://example.com/'
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session.send(self.request.prepare())
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self.assert_proxy_manager_call(
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proxies['http'],
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proxy_headers={},
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)
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self.assert_request_sent(url=self.request.url)
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def test_https_proxy_scheme_tls_in_tls(self):
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proxies = {'https': 'https://proxy.com'}
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session = URLLib3Session(proxies=proxies)
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self.request.url = 'https://example.com/'
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session.send(self.request.prepare())
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self.assert_proxy_manager_call(
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proxies['https'],
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proxy_headers={},
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)
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self.assert_request_sent()
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def test_https_proxy_scheme_forwarding_https_url(self):
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proxies = {'https': 'https://proxy.com'}
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proxies_config = {"proxy_use_forwarding_for_https": True}
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session = URLLib3Session(proxies=proxies, proxies_config=proxies_config)
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self.request.url = 'https://example.com/'
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session.send(self.request.prepare())
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self.assert_proxy_manager_call(
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proxies['https'],
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proxy_headers={},
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use_forwarding_for_https=True,
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)
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self.assert_request_sent(url=self.request.url)
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def test_basic_https_proxy_with_client_cert(self):
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proxies = {'https': 'http://proxy.com'}
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session = URLLib3Session(proxies=proxies, client_cert='/some/cert')
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self.request.url = 'https://example.com/'
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session.send(self.request.prepare())
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self.assert_proxy_manager_call(
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proxies['https'],
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proxy_headers={},
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cert_file='/some/cert',
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key_file=None,
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)
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self.assert_request_sent()
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def test_basic_https_proxy_with_client_cert_and_key(self):
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cert = ('/some/cert', '/some/key')
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proxies = {'https': 'http://proxy.com'}
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session = URLLib3Session(proxies=proxies, client_cert=cert)
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self.request.url = 'https://example.com/'
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session.send(self.request.prepare())
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self.assert_proxy_manager_call(
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proxies['https'],
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proxy_headers={},
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cert_file=cert[0],
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key_file=cert[1],
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)
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self.assert_request_sent()
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def test_urllib3_proxies_kwargs_included(self):
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cert = ('/some/cert', '/some/key')
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proxies = {'https': 'https://proxy.com'}
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proxies_config = {'proxy_client_cert': "path/to/cert"}
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with mock.patch('botocore.httpsession.create_urllib3_context'):
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session = URLLib3Session(
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proxies=proxies, client_cert=cert,
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proxies_config=proxies_config
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)
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self.request.url = 'https://example.com/'
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session.send(self.request.prepare())
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self.assert_proxy_manager_call(
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proxies['https'],
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proxy_headers={},
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cert_file=cert[0],
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key_file=cert[1],
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proxy_ssl_context=mock.ANY
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)
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self.assert_request_sent()
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def test_proxy_ssl_context_uses_check_hostname(self):
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cert = ('/some/cert', '/some/key')
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proxies = {'https': 'https://proxy.com'}
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proxies_config = {'proxy_client_cert': "path/to/cert"}
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with mock.patch('botocore.httpsession.create_urllib3_context'):
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session = URLLib3Session(
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proxies=proxies, client_cert=cert,
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proxies_config=proxies_config
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)
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self.request.url = 'https://example.com/'
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session.send(self.request.prepare())
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last_call = self.proxy_manager_fun.call_args[-1]
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self.assertIs(last_call['ssl_context'].check_hostname, True)
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def test_basic_request(self):
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session = URLLib3Session()
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session.send(self.request.prepare())
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self.assert_request_sent()
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self.response.stream.assert_called_once_with()
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def test_basic_streaming_request(self):
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session = URLLib3Session()
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self.request.stream_output = True
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session.send(self.request.prepare())
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self.assert_request_sent()
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self.response.stream.assert_not_called()
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def test_basic_https_request(self):
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session = URLLib3Session()
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self.request.url = 'https://example.com/'
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session.send(self.request.prepare())
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self.assert_request_sent()
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def test_basic_https_proxy_request(self):
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proxies = {'https': 'http://proxy.com'}
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session = URLLib3Session(proxies=proxies)
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self.request.url = 'https://example.com/'
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session.send(self.request.prepare())
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self.assert_proxy_manager_call(proxies['https'], proxy_headers={})
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self.assert_request_sent()
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def test_basic_proxy_request_caches_manager(self):
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proxies = {'https': 'http://proxy.com'}
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session = URLLib3Session(proxies=proxies)
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self.request.url = 'https://example.com/'
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session.send(self.request.prepare())
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# assert we created the proxy manager
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self.assert_proxy_manager_call(proxies['https'], proxy_headers={})
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session.send(self.request.prepare())
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# assert that we did not create another proxy manager
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self.assertEqual(self.proxy_manager_fun.call_count, 1)
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def test_basic_http_proxy_request(self):
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proxies = {'http': 'http://proxy.com'}
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session = URLLib3Session(proxies=proxies)
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session.send(self.request.prepare())
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self.assert_proxy_manager_call(proxies['http'], proxy_headers={})
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self.assert_request_sent(url=self.request.url)
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def test_ssl_context_is_explicit(self):
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session = URLLib3Session()
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session.send(self.request.prepare())
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_, manager_kwargs = self.pool_manager_cls.call_args
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self.assertIsNotNone(manager_kwargs.get('ssl_context'))
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def test_proxy_request_ssl_context_is_explicit(self):
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proxies = {'http': 'http://proxy.com'}
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session = URLLib3Session(proxies=proxies)
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session.send(self.request.prepare())
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_, proxy_kwargs = self.proxy_manager_fun.call_args
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self.assertIsNotNone(proxy_kwargs.get('ssl_context'))
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def test_session_forwards_socket_options_to_pool_manager(self):
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socket_options = [(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)]
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URLLib3Session(socket_options=socket_options)
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self.assert_pool_manager_call(socket_options=socket_options)
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def test_session_forwards_socket_options_to_proxy_manager(self):
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proxies = {'http': 'http://proxy.com'}
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socket_options = [(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)]
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session = URLLib3Session(
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proxies=proxies,
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socket_options=socket_options,
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)
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session.send(self.request.prepare())
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self.assert_proxy_manager_call(
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proxies['http'],
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proxy_headers={},
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socket_options=socket_options,
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)
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def make_request_with_error(self, error):
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self.connection.urlopen.side_effect = error
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session = URLLib3Session()
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session.send(self.request.prepare())
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def test_catches_new_connection_error(self):
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error = NewConnectionError(None, None)
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with pytest.raises(EndpointConnectionError):
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self.make_request_with_error(error)
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def test_catches_bad_status_line(self):
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error = ProtocolError(None)
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with pytest.raises(ConnectionClosedError):
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self.make_request_with_error(error)
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def test_aws_connection_classes_are_used(self):
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session = URLLib3Session()
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# ensure the pool manager is using the correct classes
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http_class = self.pool_manager.pool_classes_by_scheme.get('http')
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self.assertIs(http_class, AWSHTTPConnectionPool)
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https_class = self.pool_manager.pool_classes_by_scheme.get('https')
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self.assertIs(https_class, AWSHTTPSConnectionPool)
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def test_chunked_encoding_is_set_with_header(self):
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session = URLLib3Session()
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self.request.headers['Transfer-Encoding'] = 'chunked'
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session.send(self.request.prepare())
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self.assert_request_sent(
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chunked=True,
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headers={'Transfer-Encoding': 'chunked'},
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)
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def test_chunked_encoding_is_not_set_without_header(self):
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session = URLLib3Session()
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session.send(self.request.prepare())
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self.assert_request_sent(chunked=False)
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