def setUp(self):
"""Initialize this test instance."""
yield super(ServerTunnelProtocolTestCase, self).setUp()
self.ws = MockWebServer()
self.addCleanup(self.ws.stop)
self.dest_url = self.ws.get_iri().encode("utf-8") + SIMPLERESOURCE
self.transport = FakeTransport()
self.transport.cookie = FAKE_COOKIE
self.fake_client = FakeClient()
self.proto = tunnel_server.ServerTunnelProtocol(
lambda _: self.fake_client)
self.fake_client.protocol = self.proto
self.proto.transport = self.transport
self.cookie_line = "%s: %s" % (tunnel_server.TUNNEL_COOKIE_HEADER,
FAKE_COOKIE)
class ServerTunnelProtocolTestCase(SquidTestCase):
"""Tests for the ServerTunnelProtocol."""
@defer.inlineCallbacks
def setUp(self):
"""Initialize this test instance."""
yield super(ServerTunnelProtocolTestCase, self).setUp()
self.ws = MockWebServer()
self.addCleanup(self.ws.stop)
self.dest_url = self.ws.get_iri().encode("utf-8") + SIMPLERESOURCE
self.transport = FakeTransport()
self.transport.cookie = FAKE_COOKIE
self.fake_client = FakeClient()
self.proto = tunnel_server.ServerTunnelProtocol(
lambda _: self.fake_client)
self.fake_client.protocol = self.proto
self.proto.transport = self.transport
self.cookie_line = "%s: %s" % (tunnel_server.TUNNEL_COOKIE_HEADER,
FAKE_COOKIE)
def test_broken_request(self):
"""Broken request."""
self.proto.dataReceived("Broken request." + CRLF)
self.assertTrue(self.transport.getvalue().startswith("HTTP/1.0 400 "),
"A broken request must fail.")
def test_wrong_method(self):
"""Wrong method."""
self.proto.dataReceived("GET http://slashdot.org HTTP/1.0" + CRLF)
self.assertTrue(self.transport.getvalue().startswith("HTTP/1.0 405 "),
"Using a wrong method fails.")
def test_invalid_http_version(self):
"""Invalid HTTP version."""
self.proto.dataReceived("CONNECT 127.0.0.1:9999 HTTP/1.1" + CRLF)
self.assertTrue(self.transport.getvalue().startswith("HTTP/1.0 505 "),
"Invalid http version is not allowed.")
def test_connection_is_established(self):
"""The response code is sent."""
expected = "HTTP/1.0 200 Proxy connection established" + CRLF
self.proto.dataReceived("CONNECT 127.0.0.1:9999 HTTP/1.0" + CRLF +
self.cookie_line + CRLF * 2)
self.assertTrue(self.transport.getvalue().startswith(expected),
"First line must be the response status")
def test_connection_fails(self):
"""The connection to the other end fails, and it's handled."""
error = tunnel_server.ConnectionError()
self.patch(self.fake_client, "connection_result", defer.fail(error))
expected = "HTTP/1.0 500 Connection error" + CRLF
self.proto.dataReceived("CONNECT 127.0.0.1:9999 HTTP/1.0" + CRLF +
self.cookie_line + CRLF * 2)
self.assertTrue(self.transport.getvalue().startswith(expected),
"The connection should fail at this point.")
def test_headers_stored(self):
"""The request headers are stored."""
expected = [
("Header1", "value1"),
("Header2", "value2"),
]
self.proto.dataReceived("CONNECT 127.0.0.1:9999 HTTP/1.0" + CRLF +
"Header1: value1" + CRLF +
"Header2: value2" + CRLF + CRLF)
self.assertEqual(self.proto.received_headers, expected)
def test_cookie_header_present(self):
"""The cookie header must be present."""
self.proto.received_headers = [
(tunnel_server.TUNNEL_COOKIE_HEADER, FAKE_COOKIE),
]
self.proto.verify_cookie()
def test_cookie_header_absent(self):
"""The tunnel should refuse connections without the cookie."""
self.proto.received_headers = []
exception = self.assertRaises(tunnel_server.ConnectionError,
self.proto.verify_cookie)
self.assertEqual(exception.code, 418)
def test_successful_connect(self):
"""A successful connect thru the tunnel."""
url = urlparse(self.dest_url)
data = FAKE_SESSION_TEMPLATE % (url.netloc, self.transport.cookie,
url.path)
self.proto.dataReceived(data)
lines = self.transport.getvalue().split(CRLF)
self.assertEqual(lines[-1], SAMPLE_CONTENT)
def test_header_split(self):
"""Test a header with many colons."""
self.proto.header_line("key: host:port")
self.assertIn("key", dict(self.proto.received_headers))
@defer.inlineCallbacks
def test_keyring_credentials_are_retried(self):
"""Wrong credentials are retried with values from keyring."""
self.fake_client.check_credentials = True
self.patch(self.proto, "verify_cookie", lambda: None)
self.patch(self.proto, "error_response",
lambda code, desc: self.fail(desc))
self.proto.proxy_domain = "xxx"
self.patch(tunnel_server.Keyring, "get_credentials",
lambda _, domain: defer.succeed(FAKE_CREDS))
yield self.proto.headers_done()
def test_creds_are_not_logged(self):
"""The proxy credentials are not logged."""
log = []
self.patch(tunnel_server.logger, "info",
lambda text, *args: log.append(text % args))
proxy = tunnel_server.build_proxy(FAKE_AUTH_SETTINGS)
authenticator = QAuthenticator()
username = FAKE_AUTH_SETTINGS["http"]["username"]
password = FAKE_AUTH_SETTINGS["http"]["password"]
self.proto.proxy_credentials = {
"username": username,
"password": password,
}
self.proto.proxy_domain = proxy.hostName()
self.proto.proxy_auth_required(proxy, authenticator)
for line in log:
self.assertNotIn(username, line)
self.assertNotIn(password, line)