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Code Issues Packages Projects Releases Wiki Activity

Allow providing credentials to http_proxy (#10360)

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Dirk Klimpel 2021-07-15 11:37:08 +02:00 committed by GitHub
parent 7695ca0618
commit c7603af1d0
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3 changed files with 64 additions and 14 deletions
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1
changelog.d/10360.feature Normal file
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@ -0,0 +1 @@
Allow providing credentials to `http_proxy`.

12
synapse/http/proxyagent.py
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@ -117,7 +117,8 @@ class ProxyAgent(_AgentBase):
https_proxy = proxies["https"].encode() if "https" in proxies else None
no_proxy = proxies["no"] if "no" in proxies else None
# Parse credentials from https proxy connection string if present
# Parse credentials from http and https proxy connection string if present
self.http_proxy_creds, http_proxy = parse_username_password(http_proxy)
self.https_proxy_creds, https_proxy = parse_username_password(https_proxy)
self.http_proxy_endpoint = _http_proxy_endpoint(
@ -189,6 +190,15 @@ class ProxyAgent(_AgentBase):
and self.http_proxy_endpoint
and not should_skip_proxy
):
# Determine whether we need to set Proxy-Authorization headers
if self.http_proxy_creds:
# Set a Proxy-Authorization header
if headers is None:
headers = Headers()
headers.addRawHeader(
b"Proxy-Authorization",
self.http_proxy_creds.as_proxy_authorization_value(),
)
# Cache *all* connections under the same key, since we are only
# connecting to a single destination, the proxy:
pool_key = ("http-proxy", self.http_proxy_endpoint)

65
tests/http/test_proxyagent.py
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@ -205,6 +205,41 @@ class MatrixFederationAgentTests(TestCase):
@patch.dict(os.environ, {"http_proxy": "proxy.com:8888", "no_proxy": "unused.com"})
def test_http_request_via_proxy(self):
"""
Tests that requests can be made through a proxy.
"""
self._do_http_request_via_proxy(auth_credentials=None)
@patch.dict(
os.environ,
{"http_proxy": "bob:pinkponies@proxy.com:8888", "no_proxy": "unused.com"},
)
def test_http_request_via_proxy_with_auth(self):
"""
Tests that authenticated requests can be made through a proxy.
"""
self._do_http_request_via_proxy(auth_credentials="bob:pinkponies")
@patch.dict(os.environ, {"https_proxy": "proxy.com", "no_proxy": "unused.com"})
def test_https_request_via_proxy(self):
"""Tests that TLS-encrypted requests can be made through a proxy"""
self._do_https_request_via_proxy(auth_credentials=None)
@patch.dict(
os.environ,
{"https_proxy": "bob:pinkponies@proxy.com", "no_proxy": "unused.com"},
)
def test_https_request_via_proxy_with_auth(self):
"""Tests that authenticated, TLS-encrypted requests can be made through a proxy"""
self._do_https_request_via_proxy(auth_credentials="bob:pinkponies")
def _do_http_request_via_proxy(
self,
auth_credentials: Optional[str] = None,
):
"""
Tests that requests can be made through a proxy.
"""
agent = ProxyAgent(self.reactor, use_proxy=True)
self.reactor.lookups["proxy.com"] = "1.2.3.5"
@ -229,6 +264,23 @@ class MatrixFederationAgentTests(TestCase):
self.assertEqual(len(http_server.requests), 1)
request = http_server.requests[0]
# Check whether auth credentials have been supplied to the proxy
proxy_auth_header_values = request.requestHeaders.getRawHeaders(
b"Proxy-Authorization"
)
if auth_credentials is not None:
# Compute the correct header value for Proxy-Authorization
encoded_credentials = base64.b64encode(b"bob:pinkponies")
expected_header_value = b"Basic " + encoded_credentials
# Validate the header's value
self.assertIn(expected_header_value, proxy_auth_header_values)
else:
# Check that the Proxy-Authorization header has not been supplied to the proxy
self.assertIsNone(proxy_auth_header_values)
self.assertEqual(request.method, b"GET")
self.assertEqual(request.path, b"http://test.com")
self.assertEqual(request.requestHeaders.getRawHeaders(b"host"), [b"test.com"])
@ -241,19 +293,6 @@ class MatrixFederationAgentTests(TestCase):
body = self.successResultOf(treq.content(resp))
self.assertEqual(body, b"result")
@patch.dict(os.environ, {"https_proxy": "proxy.com", "no_proxy": "unused.com"})
def test_https_request_via_proxy(self):
"""Tests that TLS-encrypted requests can be made through a proxy"""
self._do_https_request_via_proxy(auth_credentials=None)
@patch.dict(
os.environ,
{"https_proxy": "bob:pinkponies@proxy.com", "no_proxy": "unused.com"},
)
def test_https_request_via_proxy_with_auth(self):
"""Tests that authenticated, TLS-encrypted requests can be made through a proxy"""
self._do_https_request_via_proxy(auth_credentials="bob:pinkponies")
def _do_https_request_via_proxy(
self,
auth_credentials: Optional[str] = None,