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119 lines
5.2 KiB
Python
119 lines
5.2 KiB
Python
import os
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from typing import Any
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from unittest import mock
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import requests
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import responses
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from requests.adapters import HTTPAdapter
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from typing_extensions import override
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from urllib3.util import Retry
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from zerver.lib.outgoing_http import OutgoingSession
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from zerver.lib.test_classes import ZulipTestCase
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class RequestMockWithProxySupport(responses.RequestsMock):
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@override
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def _on_request(
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self,
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adapter: requests.adapters.HTTPAdapter,
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request: requests.PreparedRequest,
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**kwargs: Any,
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) -> requests.Response:
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if "proxies" in kwargs and request.url:
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proxy_url = requests.utils.select_proxy(request.url, kwargs["proxies"])
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if proxy_url is not None:
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request = requests.Request(
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method="GET",
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url=f"{proxy_url}/",
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headers=adapter.proxy_headers(proxy_url),
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).prepare()
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return super()._on_request(adapter, request, **kwargs)
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class RequestMockWithTimeoutAsHeader(responses.RequestsMock):
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@override
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def _on_request(
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self,
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adapter: requests.adapters.HTTPAdapter,
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request: requests.PreparedRequest,
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**kwargs: Any,
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) -> requests.Response:
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if kwargs.get("timeout") is not None:
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request.headers["X-Timeout"] = kwargs["timeout"]
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return super()._on_request(adapter, request, **kwargs)
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class TestOutgoingHttp(ZulipTestCase):
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def test_headers(self) -> None:
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with RequestMockWithProxySupport() as mock_requests:
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mock_requests.add(responses.GET, "http://example.com/")
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OutgoingSession(role="testing", timeout=1, headers={"X-Foo": "bar"}).get(
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"http://example.com/"
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)
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self.assert_length(mock_requests.calls, 1)
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headers = mock_requests.calls[0].request.headers
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# We don't see a proxy header with no proxy set
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self.assertFalse("X-Smokescreen-Role" in headers)
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self.assertEqual(headers["X-Foo"], "bar")
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@mock.patch.dict(os.environ, {"http_proxy": "http://localhost:4242"})
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def test_proxy_headers(self) -> None:
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with RequestMockWithProxySupport() as mock_requests:
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mock_requests.add(responses.GET, "http://localhost:4242/")
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OutgoingSession(role="testing", timeout=1, headers={"X-Foo": "bar"}).get(
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"http://example.com/"
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)
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self.assert_length(mock_requests.calls, 1)
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headers = mock_requests.calls[0].request.headers
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self.assertEqual(headers["X-Smokescreen-Role"], "testing")
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# We don't see the request-level headers in the proxy
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# request. This isn't a _true_ test because we're
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# fiddling the headers above, instead of urllib3 actually
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# setting them.
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self.assertFalse("X-Foo" in headers)
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def test_timeouts(self) -> None:
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with RequestMockWithTimeoutAsHeader() as mock_requests:
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mock_requests.add(responses.GET, "http://example.com/")
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OutgoingSession(role="testing", timeout=17).get("http://example.com/")
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self.assert_length(mock_requests.calls, 1)
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self.assertEqual(mock_requests.calls[0].request.headers["X-Timeout"], 17)
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with RequestMockWithTimeoutAsHeader() as mock_requests:
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mock_requests.add(responses.GET, "http://example.com/")
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OutgoingSession(role="testing", timeout=17).get("http://example.com/", timeout=42)
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self.assert_length(mock_requests.calls, 1)
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self.assertEqual(mock_requests.calls[0].request.headers["X-Timeout"], 42)
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def test_retries(self) -> None:
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# Responses doesn't support testing the low-level retry
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# functionality, so we can't test the retry itself easily. :(
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# https://github.com/getsentry/responses/issues/135
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# Defaults to no retries
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session = requests.Session()
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assert isinstance(session.adapters["http://"], HTTPAdapter)
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self.assertEqual(session.adapters["http://"].max_retries.total, 0)
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assert isinstance(session.adapters["https://"], HTTPAdapter)
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self.assertEqual(session.adapters["https://"].max_retries.total, 0)
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session = OutgoingSession(role="testing", timeout=1)
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assert isinstance(session.adapters["http://"], HTTPAdapter)
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self.assertEqual(session.adapters["http://"].max_retries.total, 0)
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assert isinstance(session.adapters["https://"], HTTPAdapter)
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self.assertEqual(session.adapters["https://"].max_retries.total, 0)
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session = OutgoingSession(role="testing", timeout=1, max_retries=2)
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assert isinstance(session.adapters["http://"], HTTPAdapter)
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self.assertEqual(session.adapters["http://"].max_retries.total, 2)
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assert isinstance(session.adapters["https://"], HTTPAdapter)
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self.assertEqual(session.adapters["https://"].max_retries.total, 2)
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session = OutgoingSession(role="testing", timeout=1, max_retries=Retry(total=5))
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assert isinstance(session.adapters["http://"], HTTPAdapter)
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self.assertEqual(session.adapters["http://"].max_retries.total, 5)
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assert isinstance(session.adapters["https://"], HTTPAdapter)
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self.assertEqual(session.adapters["https://"].max_retries.total, 5)
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