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# Licensed to Elasticsearch B.V. under one or more contributor
# license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright
# ownership. Elasticsearch B.V. licenses this file to you 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 functools
import socket
import ssl
import pytest
from elastic_transport import (
AiohttpHttpNode,
ConnectionError,
HttpxAsyncHttpNode,
NodeConfig,
RequestsHttpNode,
TlsError,
Urllib3HttpNode,
)
from elastic_transport._compat import await_if_coro
from elastic_transport.client_utils import url_to_node_config
TLSv1_0_URL = "https://tls-v1-0.badssl.com:1010"
TLSv1_1_URL = "https://tls-v1-1.badssl.com:1011"
TLSv1_2_URL = "https://tls-v1-2.badssl.com:1012"
node_classes = pytest.mark.parametrize(
"node_class",
[AiohttpHttpNode, Urllib3HttpNode, RequestsHttpNode, HttpxAsyncHttpNode],
)
supported_version_params = [
(TLSv1_0_URL, ssl.PROTOCOL_TLSv1),
(TLSv1_1_URL, ssl.PROTOCOL_TLSv1_1),
(TLSv1_2_URL, ssl.PROTOCOL_TLSv1_2),
(TLSv1_2_URL, None),
]
unsupported_version_params = [
(TLSv1_0_URL, None),
(TLSv1_1_URL, None),
(TLSv1_0_URL, ssl.PROTOCOL_TLSv1_1),
(TLSv1_0_URL, ssl.PROTOCOL_TLSv1_2),
(TLSv1_1_URL, ssl.PROTOCOL_TLSv1_2),
]
try:
from ssl import TLSVersion
except ImportError:
pass
else:
supported_version_params.extend(
[
(TLSv1_0_URL, TLSVersion.TLSv1),
(TLSv1_1_URL, TLSVersion.TLSv1_1),
(TLSv1_2_URL, TLSVersion.TLSv1_2),
]
)
unsupported_version_params.extend(
[
(TLSv1_0_URL, TLSVersion.TLSv1_1),
(TLSv1_0_URL, TLSVersion.TLSv1_2),
(TLSv1_1_URL, TLSVersion.TLSv1_2),
(TLSv1_0_URL, TLSVersion.TLSv1_3),
(TLSv1_1_URL, TLSVersion.TLSv1_3),
(TLSv1_2_URL, TLSVersion.TLSv1_3),
]
)
@functools.lru_cache()
def tlsv1_1_supported() -> bool:
# OpenSSL distributions on Ubuntu/Debian disable TLSv1.1 and before incorrectly.
# So we try to detect that and skip tests when needed.
try:
sock = socket.create_connection(("tls-v1-1.badssl.com", 1011))
ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1_1)
sock = ctx.wrap_socket(sock, server_hostname="tls-v1-1.badssl.com")
sock.close()
except ssl.SSLError:
return False
return True
@node_classes
@pytest.mark.parametrize(
["url", "ssl_version"],
supported_version_params,
)
@pytest.mark.anyio
async def test_supported_tls_versions(
node_class, url: str, ssl_version: int, anyio_backend
):
if url in (TLSv1_0_URL, TLSv1_1_URL) and not tlsv1_1_supported():
pytest.skip("TLSv1.1 isn't supported by this OpenSSL distribution")
if anyio_backend == "trio" and node_class is not HttpxAsyncHttpNode:
pytest.skip("only httpx supports trio")
node_config = url_to_node_config(url).replace(ssl_version=ssl_version)
node = node_class(node_config)
resp, _ = await await_if_coro(node.perform_request("GET", "/"))
assert resp.status == 200
@node_classes
@pytest.mark.parametrize(
["url", "ssl_version"],
unsupported_version_params,
)
@pytest.mark.anyio
async def test_unsupported_tls_versions(
node_class, url: str, ssl_version: int, anyio_backend
):
if anyio_backend == "trio" and node_class is not HttpxAsyncHttpNode:
pytest.skip("only httpx supports trio")
node_config = url_to_node_config(url).replace(ssl_version=ssl_version)
node = node_class(node_config)
# Remove ConnectionError when we have a fix or workaround for
# https://github.com/encode/httpx/discussions/3674
with pytest.raises((TlsError, ConnectionError)) as e:
await await_if_coro(node.perform_request("GET", "/"))
if anyio_backend == "trio" and node_class is HttpxAsyncHttpNode:
return # Trio errors are not correctly bubbled up by httpx
assert "unsupported protocol" in str(e.value) or "handshake failure" in str(e.value)
@node_classes
@pytest.mark.parametrize("ssl_version", [0, "TLSv1", object()])
def test_ssl_version_value_error(node_class, ssl_version):
# Remove ConnectionError when we have a fix or workaround for
# https://github.com/encode/httpx/discussions/3674
with pytest.raises((ValueError, ConnectionError)) as e:
node_class(NodeConfig("https", "localhost", 9200, ssl_version=ssl_version))
assert str(e.value) == (
f"Unsupported value for 'ssl_version': {ssl_version!r}. Must be either "
"'ssl.PROTOCOL_TLSvX' or 'ssl.TLSVersion.TLSvX'"
)
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