mirror of
https://mau.dev/maunium/synapse.git
synced 2024-11-15 06:21:49 +01:00
1cb84c6486
The `http_proxy` and `HTTPS_PROXY` env vars can be set to a `host[:port]` value which should point to a proxy. The address of the proxy should be excluded from IP blacklists such as the `url_preview_ip_range_blacklist`. The proxy will then be used for * push * url previews * phone-home stats * recaptcha validation * CAS auth validation It will *not* be used for: * Application Services * Identity servers * Outbound federation * In worker configurations, connections from workers to masters Fixes #4198.
334 lines
12 KiB
Python
334 lines
12 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2019 The Matrix.org Foundation C.I.C.
|
|
#
|
|
# Licensed 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 logging
|
|
|
|
import treq
|
|
|
|
from twisted.internet import interfaces # noqa: F401
|
|
from twisted.internet.protocol import Factory
|
|
from twisted.protocols.tls import TLSMemoryBIOFactory
|
|
from twisted.web.http import HTTPChannel
|
|
|
|
from synapse.http.proxyagent import ProxyAgent
|
|
|
|
from tests.http import TestServerTLSConnectionFactory, get_test_https_policy
|
|
from tests.server import FakeTransport, ThreadedMemoryReactorClock
|
|
from tests.unittest import TestCase
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
HTTPFactory = Factory.forProtocol(HTTPChannel)
|
|
|
|
|
|
class MatrixFederationAgentTests(TestCase):
|
|
def setUp(self):
|
|
self.reactor = ThreadedMemoryReactorClock()
|
|
|
|
def _make_connection(
|
|
self, client_factory, server_factory, ssl=False, expected_sni=None
|
|
):
|
|
"""Builds a test server, and completes the outgoing client connection
|
|
|
|
Args:
|
|
client_factory (interfaces.IProtocolFactory): the the factory that the
|
|
application is trying to use to make the outbound connection. We will
|
|
invoke it to build the client Protocol
|
|
|
|
server_factory (interfaces.IProtocolFactory): a factory to build the
|
|
server-side protocol
|
|
|
|
ssl (bool): If true, we will expect an ssl connection and wrap
|
|
server_factory with a TLSMemoryBIOFactory
|
|
|
|
expected_sni (bytes|None): the expected SNI value
|
|
|
|
Returns:
|
|
IProtocol: the server Protocol returned by server_factory
|
|
"""
|
|
if ssl:
|
|
server_factory = _wrap_server_factory_for_tls(server_factory)
|
|
|
|
server_protocol = server_factory.buildProtocol(None)
|
|
|
|
# now, tell the client protocol factory to build the client protocol,
|
|
# and wire the output of said protocol up to the server via
|
|
# a FakeTransport.
|
|
#
|
|
# Normally this would be done by the TCP socket code in Twisted, but we are
|
|
# stubbing that out here.
|
|
client_protocol = client_factory.buildProtocol(None)
|
|
client_protocol.makeConnection(
|
|
FakeTransport(server_protocol, self.reactor, client_protocol)
|
|
)
|
|
|
|
# tell the server protocol to send its stuff back to the client, too
|
|
server_protocol.makeConnection(
|
|
FakeTransport(client_protocol, self.reactor, server_protocol)
|
|
)
|
|
|
|
if ssl:
|
|
http_protocol = server_protocol.wrappedProtocol
|
|
tls_connection = server_protocol._tlsConnection
|
|
else:
|
|
http_protocol = server_protocol
|
|
tls_connection = None
|
|
|
|
# give the reactor a pump to get the TLS juices flowing (if needed)
|
|
self.reactor.advance(0)
|
|
|
|
if expected_sni is not None:
|
|
server_name = tls_connection.get_servername()
|
|
self.assertEqual(
|
|
server_name,
|
|
expected_sni,
|
|
"Expected SNI %s but got %s" % (expected_sni, server_name),
|
|
)
|
|
|
|
return http_protocol
|
|
|
|
def test_http_request(self):
|
|
agent = ProxyAgent(self.reactor)
|
|
|
|
self.reactor.lookups["test.com"] = "1.2.3.4"
|
|
d = agent.request(b"GET", b"http://test.com")
|
|
|
|
# there should be a pending TCP connection
|
|
clients = self.reactor.tcpClients
|
|
self.assertEqual(len(clients), 1)
|
|
(host, port, client_factory, _timeout, _bindAddress) = clients[0]
|
|
self.assertEqual(host, "1.2.3.4")
|
|
self.assertEqual(port, 80)
|
|
|
|
# make a test server, and wire up the client
|
|
http_server = self._make_connection(
|
|
client_factory, _get_test_protocol_factory()
|
|
)
|
|
|
|
# the FakeTransport is async, so we need to pump the reactor
|
|
self.reactor.advance(0)
|
|
|
|
# now there should be a pending request
|
|
self.assertEqual(len(http_server.requests), 1)
|
|
|
|
request = http_server.requests[0]
|
|
self.assertEqual(request.method, b"GET")
|
|
self.assertEqual(request.path, b"/")
|
|
self.assertEqual(request.requestHeaders.getRawHeaders(b"host"), [b"test.com"])
|
|
request.write(b"result")
|
|
request.finish()
|
|
|
|
self.reactor.advance(0)
|
|
|
|
resp = self.successResultOf(d)
|
|
body = self.successResultOf(treq.content(resp))
|
|
self.assertEqual(body, b"result")
|
|
|
|
def test_https_request(self):
|
|
agent = ProxyAgent(self.reactor, contextFactory=get_test_https_policy())
|
|
|
|
self.reactor.lookups["test.com"] = "1.2.3.4"
|
|
d = agent.request(b"GET", b"https://test.com/abc")
|
|
|
|
# there should be a pending TCP connection
|
|
clients = self.reactor.tcpClients
|
|
self.assertEqual(len(clients), 1)
|
|
(host, port, client_factory, _timeout, _bindAddress) = clients[0]
|
|
self.assertEqual(host, "1.2.3.4")
|
|
self.assertEqual(port, 443)
|
|
|
|
# make a test server, and wire up the client
|
|
http_server = self._make_connection(
|
|
client_factory,
|
|
_get_test_protocol_factory(),
|
|
ssl=True,
|
|
expected_sni=b"test.com",
|
|
)
|
|
|
|
# the FakeTransport is async, so we need to pump the reactor
|
|
self.reactor.advance(0)
|
|
|
|
# now there should be a pending request
|
|
self.assertEqual(len(http_server.requests), 1)
|
|
|
|
request = http_server.requests[0]
|
|
self.assertEqual(request.method, b"GET")
|
|
self.assertEqual(request.path, b"/abc")
|
|
self.assertEqual(request.requestHeaders.getRawHeaders(b"host"), [b"test.com"])
|
|
request.write(b"result")
|
|
request.finish()
|
|
|
|
self.reactor.advance(0)
|
|
|
|
resp = self.successResultOf(d)
|
|
body = self.successResultOf(treq.content(resp))
|
|
self.assertEqual(body, b"result")
|
|
|
|
def test_http_request_via_proxy(self):
|
|
agent = ProxyAgent(self.reactor, http_proxy=b"proxy.com:8888")
|
|
|
|
self.reactor.lookups["proxy.com"] = "1.2.3.5"
|
|
d = agent.request(b"GET", b"http://test.com")
|
|
|
|
# there should be a pending TCP connection
|
|
clients = self.reactor.tcpClients
|
|
self.assertEqual(len(clients), 1)
|
|
(host, port, client_factory, _timeout, _bindAddress) = clients[0]
|
|
self.assertEqual(host, "1.2.3.5")
|
|
self.assertEqual(port, 8888)
|
|
|
|
# make a test server, and wire up the client
|
|
http_server = self._make_connection(
|
|
client_factory, _get_test_protocol_factory()
|
|
)
|
|
|
|
# the FakeTransport is async, so we need to pump the reactor
|
|
self.reactor.advance(0)
|
|
|
|
# now there should be a pending request
|
|
self.assertEqual(len(http_server.requests), 1)
|
|
|
|
request = http_server.requests[0]
|
|
self.assertEqual(request.method, b"GET")
|
|
self.assertEqual(request.path, b"http://test.com")
|
|
self.assertEqual(request.requestHeaders.getRawHeaders(b"host"), [b"test.com"])
|
|
request.write(b"result")
|
|
request.finish()
|
|
|
|
self.reactor.advance(0)
|
|
|
|
resp = self.successResultOf(d)
|
|
body = self.successResultOf(treq.content(resp))
|
|
self.assertEqual(body, b"result")
|
|
|
|
def test_https_request_via_proxy(self):
|
|
agent = ProxyAgent(
|
|
self.reactor,
|
|
contextFactory=get_test_https_policy(),
|
|
https_proxy=b"proxy.com",
|
|
)
|
|
|
|
self.reactor.lookups["proxy.com"] = "1.2.3.5"
|
|
d = agent.request(b"GET", b"https://test.com/abc")
|
|
|
|
# there should be a pending TCP connection
|
|
clients = self.reactor.tcpClients
|
|
self.assertEqual(len(clients), 1)
|
|
(host, port, client_factory, _timeout, _bindAddress) = clients[0]
|
|
self.assertEqual(host, "1.2.3.5")
|
|
self.assertEqual(port, 1080)
|
|
|
|
# make a test HTTP server, and wire up the client
|
|
proxy_server = self._make_connection(
|
|
client_factory, _get_test_protocol_factory()
|
|
)
|
|
|
|
# fish the transports back out so that we can do the old switcheroo
|
|
s2c_transport = proxy_server.transport
|
|
client_protocol = s2c_transport.other
|
|
c2s_transport = client_protocol.transport
|
|
|
|
# the FakeTransport is async, so we need to pump the reactor
|
|
self.reactor.advance(0)
|
|
|
|
# now there should be a pending CONNECT request
|
|
self.assertEqual(len(proxy_server.requests), 1)
|
|
|
|
request = proxy_server.requests[0]
|
|
self.assertEqual(request.method, b"CONNECT")
|
|
self.assertEqual(request.path, b"test.com:443")
|
|
|
|
# tell the proxy server not to close the connection
|
|
proxy_server.persistent = True
|
|
|
|
# this just stops the http Request trying to do a chunked response
|
|
# request.setHeader(b"Content-Length", b"0")
|
|
request.finish()
|
|
|
|
# now we can replace the proxy channel with a new, SSL-wrapped HTTP channel
|
|
ssl_factory = _wrap_server_factory_for_tls(_get_test_protocol_factory())
|
|
ssl_protocol = ssl_factory.buildProtocol(None)
|
|
http_server = ssl_protocol.wrappedProtocol
|
|
|
|
ssl_protocol.makeConnection(
|
|
FakeTransport(client_protocol, self.reactor, ssl_protocol)
|
|
)
|
|
c2s_transport.other = ssl_protocol
|
|
|
|
self.reactor.advance(0)
|
|
|
|
server_name = ssl_protocol._tlsConnection.get_servername()
|
|
expected_sni = b"test.com"
|
|
self.assertEqual(
|
|
server_name,
|
|
expected_sni,
|
|
"Expected SNI %s but got %s" % (expected_sni, server_name),
|
|
)
|
|
|
|
# now there should be a pending request
|
|
self.assertEqual(len(http_server.requests), 1)
|
|
|
|
request = http_server.requests[0]
|
|
self.assertEqual(request.method, b"GET")
|
|
self.assertEqual(request.path, b"/abc")
|
|
self.assertEqual(request.requestHeaders.getRawHeaders(b"host"), [b"test.com"])
|
|
request.write(b"result")
|
|
request.finish()
|
|
|
|
self.reactor.advance(0)
|
|
|
|
resp = self.successResultOf(d)
|
|
body = self.successResultOf(treq.content(resp))
|
|
self.assertEqual(body, b"result")
|
|
|
|
|
|
def _wrap_server_factory_for_tls(factory, sanlist=None):
|
|
"""Wrap an existing Protocol Factory with a test TLSMemoryBIOFactory
|
|
|
|
The resultant factory will create a TLS server which presents a certificate
|
|
signed by our test CA, valid for the domains in `sanlist`
|
|
|
|
Args:
|
|
factory (interfaces.IProtocolFactory): protocol factory to wrap
|
|
sanlist (iterable[bytes]): list of domains the cert should be valid for
|
|
|
|
Returns:
|
|
interfaces.IProtocolFactory
|
|
"""
|
|
if sanlist is None:
|
|
sanlist = [b"DNS:test.com"]
|
|
|
|
connection_creator = TestServerTLSConnectionFactory(sanlist=sanlist)
|
|
return TLSMemoryBIOFactory(
|
|
connection_creator, isClient=False, wrappedFactory=factory
|
|
)
|
|
|
|
|
|
def _get_test_protocol_factory():
|
|
"""Get a protocol Factory which will build an HTTPChannel
|
|
|
|
Returns:
|
|
interfaces.IProtocolFactory
|
|
"""
|
|
server_factory = Factory.forProtocol(HTTPChannel)
|
|
|
|
# Request.finish expects the factory to have a 'log' method.
|
|
server_factory.log = _log_request
|
|
|
|
return server_factory
|
|
|
|
|
|
def _log_request(request):
|
|
"""Implements Factory.log, which is expected by Request.finish"""
|
|
logger.info("Completed request %s", request)
|