def test_proxy_with_http_scheme(self):
http_proxy_agent = ProxyAgent(self.reactor, use_proxy=True)
self.assertIsInstance(http_proxy_agent.http_proxy_endpoint,
HostnameEndpoint)
self.assertEqual(http_proxy_agent.http_proxy_endpoint._hostStr,
"proxy.com")
self.assertEqual(http_proxy_agent.http_proxy_endpoint._port, 8888)
def test_https_request_via_no_proxy_star(self):
agent = ProxyAgent(
self.reactor,
contextFactory=get_test_https_policy(),
use_proxy=True,
)
self._test_request_direct_connection(agent, b"https", b"test.com",
b"abc")
def _test_request_direct_connection(
self,
agent: ProxyAgent,
scheme: bytes,
hostname: bytes,
path: bytes,
):
"""Runs a test case for a direct connection not going through a proxy.
Args:
agent: the proxy agent being tested
scheme: expected to be either "http" or "https"
hostname: the hostname to connect to in the test
path: the path to connect to in the test
"""
is_https = scheme == b"https"
self.reactor.lookups[hostname.decode()] = "1.2.3.4"
d = agent.request(b"GET", scheme + b"://" + hostname + b"/" + path)
# 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 if is_https else 80)
# make a test server, and wire up the client
http_server = self._make_connection(
client_factory,
_get_test_protocol_factory(),
ssl=is_https,
expected_sni=hostname if is_https else None,
)
# 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"/" + path)
self.assertEqual(request.requestHeaders.getRawHeaders(b"host"),
[hostname])
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 __init__(
self,
reactor: ISynapseReactor,
tls_client_options_factory: Optional[FederationPolicyForHTTPS],
user_agent: bytes,
ip_blacklist: IPSet,
proxy_reactor: Optional[ISynapseReactor] = None,
_srv_resolver: Optional[SrvResolver] = None,
_well_known_resolver: Optional[WellKnownResolver] = None,
):
self._reactor = reactor
self._clock = Clock(reactor)
self._pool = HTTPConnectionPool(reactor)
self._pool.retryAutomatically = False
self._pool.maxPersistentPerHost = 5
self._pool.cachedConnectionTimeout = 2 * 60
if proxy_reactor is None:
self.proxy_reactor = reactor
else:
self.proxy_reactor = proxy_reactor
proxies = getproxies()
https_proxy = proxies["https"].encode() if "https" in proxies else None
self._agent = Agent.usingEndpointFactory(
self._reactor,
MatrixHostnameEndpointFactory(
reactor,
self.proxy_reactor,
tls_client_options_factory,
_srv_resolver,
https_proxy,
),
pool=self._pool,
)
self.user_agent = user_agent
if _well_known_resolver is None:
# Note that the name resolver has already been wrapped in a
# IPBlacklistingResolver by MatrixFederationHttpClient.
_well_known_resolver = WellKnownResolver(
self._reactor,
agent=BlacklistingAgentWrapper(
ProxyAgent(
self._reactor,
self.proxy_reactor,
pool=self._pool,
contextFactory=tls_client_options_factory,
use_proxy=True,
),
ip_blacklist=ip_blacklist,
),
user_agent=self.user_agent,
)
self._well_known_resolver = _well_known_resolver
def test_http_request_via_proxy_with_blacklist(self):
# The blacklist includes the configured proxy IP.
agent = ProxyAgent(
BlacklistingReactorWrapper(self.reactor,
ip_whitelist=None,
ip_blacklist=IPSet(["1.0.0.0/8"])),
self.reactor,
use_proxy=True,
)
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(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 __init__(
self,
reactor: ISynapseReactor,
tls_client_options_factory: Optional[FederationPolicyForHTTPS],
user_agent: bytes,
ip_whitelist: IPSet,
ip_blacklist: IPSet,
_srv_resolver: Optional[SrvResolver] = None,
_well_known_resolver: Optional[WellKnownResolver] = None,
):
# proxy_reactor is not blacklisted
proxy_reactor = reactor
# We need to use a DNS resolver which filters out blacklisted IP
# addresses, to prevent DNS rebinding.
reactor = BlacklistingReactorWrapper(reactor, ip_whitelist,
ip_blacklist)
self._clock = Clock(reactor)
self._pool = HTTPConnectionPool(reactor)
self._pool.retryAutomatically = False
self._pool.maxPersistentPerHost = 5
self._pool.cachedConnectionTimeout = 2 * 60
self._agent = Agent.usingEndpointFactory(
reactor,
MatrixHostnameEndpointFactory(
reactor,
proxy_reactor,
tls_client_options_factory,
_srv_resolver,
),
pool=self._pool,
)
self.user_agent = user_agent
if _well_known_resolver is None:
_well_known_resolver = WellKnownResolver(
reactor,
agent=BlacklistingAgentWrapper(
ProxyAgent(
reactor,
proxy_reactor,
pool=self._pool,
contextFactory=tls_client_options_factory,
use_proxy=True,
),
ip_blacklist=ip_blacklist,
),
user_agent=self.user_agent,
)
self._well_known_resolver = _well_known_resolver
def test_https_request_via_uppercase_proxy_with_blacklist(self):
# The blacklist includes the configured proxy IP.
agent = ProxyAgent(
BlacklistingReactorWrapper(self.reactor,
ip_whitelist=None,
ip_blacklist=IPSet(["1.0.0.0/8"])),
self.reactor,
contextFactory=get_test_https_policy(),
use_proxy=True,
)
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 test_http_request_via_no_proxy_star(self):
agent = ProxyAgent(self.reactor, use_proxy=True)
self._test_request_direct_connection(agent, b"http", b"test.com", b"")
def test_http_request_use_proxy_empty_environment(self):
agent = ProxyAgent(self.reactor, use_proxy=True)
self._test_request_direct_connection(agent, b"http", b"test.com", b"")
def test_https_request(self):
agent = ProxyAgent(self.reactor,
contextFactory=get_test_https_policy())
self._test_request_direct_connection(agent, b"https", b"test.com",
b"abc")
def _do_https_request_via_proxy(
self,
auth_credentials: Optional[str] = None,
):
agent = ProxyAgent(
self.reactor,
contextFactory=get_test_https_policy(),
use_proxy=True,
)
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")
# 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)
# 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"])
# Check that the destination server DID NOT receive proxy credentials
proxy_auth_header_values = request.requestHeaders.getRawHeaders(
b"Proxy-Authorization")
self.assertIsNone(proxy_auth_header_values)
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_proxy_with_unsupported_scheme(self):
with self.assertRaises(ValueError):
ProxyAgent(self.reactor, use_proxy=True)
def _do_https_request_via_proxy(
self,
expect_proxy_ssl: bool = False,
expected_auth_credentials: Optional[bytes] = None,
):
"""Send a https request via an agent and check that it is correctly received at
the proxy and client. The proxy can use either http or https.
Args:
expect_proxy_ssl: True if we expect the request to connect via https to proxy
expected_auth_credentials: credentials to authenticate at proxy
"""
agent = ProxyAgent(
self.reactor,
contextFactory=get_test_https_policy(),
use_proxy=True,
)
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 server to act as the proxy, and wire up the client
proxy_server = self._make_connection(
client_factory,
_get_test_protocol_factory(),
ssl=expect_proxy_ssl,
tls_sanlist=[b"DNS:proxy.com"] if expect_proxy_ssl else None,
expected_sni=b"proxy.com" if expect_proxy_ssl else None,
)
assert isinstance(proxy_server, HTTPChannel)
# 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")
# Check whether auth credentials have been supplied to the proxy
proxy_auth_header_values = request.requestHeaders.getRawHeaders(
b"Proxy-Authorization")
if expected_auth_credentials is not None:
# Compute the correct header value for Proxy-Authorization
encoded_credentials = base64.b64encode(expected_auth_credentials)
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)
# tell the proxy server not to close the connection
proxy_server.persistent = True
request.finish()
# now we make another test server to act as the upstream HTTP server.
server_ssl_protocol = _wrap_server_factory_for_tls(
_get_test_protocol_factory()).buildProtocol(None)
# Tell the HTTP server to send outgoing traffic back via the proxy's transport.
proxy_server_transport = proxy_server.transport
server_ssl_protocol.makeConnection(proxy_server_transport)
# ... and replace the protocol on the proxy's transport with the
# TLSMemoryBIOProtocol for the test server, so that incoming traffic
# to the proxy gets sent over to the HTTP(s) server.
#
# This needs a bit of gut-wrenching, which is different depending on whether
# the proxy is using TLS or not.
#
# (an alternative, possibly more elegant, approach would be to use a custom
# Protocol to implement the proxy, which starts out by forwarding to an
# HTTPChannel (to implement the CONNECT command) and can then be switched
# into a mode where it forwards its traffic to another Protocol.)
if expect_proxy_ssl:
assert isinstance(proxy_server_transport, TLSMemoryBIOProtocol)
proxy_server_transport.wrappedProtocol = server_ssl_protocol
else:
assert isinstance(proxy_server_transport, FakeTransport)
client_protocol = proxy_server_transport.other
c2s_transport = client_protocol.transport
c2s_transport.other = server_ssl_protocol
self.reactor.advance(0)
server_name = server_ssl_protocol._tlsConnection.get_servername()
expected_sni = b"test.com"
self.assertEqual(
server_name,
expected_sni,
f"Expected SNI {expected_sni!s} but got {server_name!s}",
)
# now there should be a pending request
http_server = server_ssl_protocol.wrappedProtocol
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"])
# Check that the destination server DID NOT receive proxy credentials
proxy_auth_header_values = request.requestHeaders.getRawHeaders(
b"Proxy-Authorization")
self.assertIsNone(proxy_auth_header_values)
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 _do_http_request_via_proxy(
self,
expect_proxy_ssl: bool = False,
expected_auth_credentials: Optional[bytes] = None,
):
"""Send a http request via an agent and check that it is correctly received at
the proxy. The proxy can use either http or https.
Args:
expect_proxy_ssl: True if we expect the request to connect via https to proxy
expected_auth_credentials: credentials to authenticate at proxy
"""
if expect_proxy_ssl:
agent = ProxyAgent(self.reactor,
use_proxy=True,
contextFactory=get_test_https_policy())
else:
agent = ProxyAgent(self.reactor, use_proxy=True)
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(),
ssl=expect_proxy_ssl,
tls_sanlist=[b"DNS:proxy.com"] if expect_proxy_ssl else None,
expected_sni=b"proxy.com" if expect_proxy_ssl else None,
)
# 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]
# Check whether auth credentials have been supplied to the proxy
proxy_auth_header_values = request.requestHeaders.getRawHeaders(
b"Proxy-Authorization")
if expected_auth_credentials is not None:
# Compute the correct header value for Proxy-Authorization
encoded_credentials = base64.b64encode(expected_auth_credentials)
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"])
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 __init__(
self,
hs,
treq_args={},
ip_whitelist=None,
ip_blacklist=None,
http_proxy=None,
https_proxy=None,
):
"""
Args:
hs (synapse.server.HomeServer)
treq_args (dict): Extra keyword arguments to be given to treq.request.
ip_blacklist (netaddr.IPSet): The IP addresses that are blacklisted that
we may not request.
ip_whitelist (netaddr.IPSet): The whitelisted IP addresses, that we can
request if it were otherwise caught in a blacklist.
http_proxy (bytes): proxy server to use for http connections. host[:port]
https_proxy (bytes): proxy server to use for https connections. host[:port]
"""
self.hs = hs
self._ip_whitelist = ip_whitelist
self._ip_blacklist = ip_blacklist
self._extra_treq_args = treq_args
self.user_agent = hs.version_string
self.clock = hs.get_clock()
if hs.config.user_agent_suffix:
self.user_agent = "%s %s" % (self.user_agent,
hs.config.user_agent_suffix)
self.user_agent = self.user_agent.encode("ascii")
if self._ip_blacklist:
real_reactor = hs.get_reactor()
# If we have an IP blacklist, we need to use a DNS resolver which
# filters out blacklisted IP addresses, to prevent DNS rebinding.
nameResolver = IPBlacklistingResolver(real_reactor,
self._ip_whitelist,
self._ip_blacklist)
@implementer(IReactorPluggableNameResolver)
class Reactor(object):
def __getattr__(_self, attr):
if attr == "nameResolver":
return nameResolver
else:
return getattr(real_reactor, attr)
self.reactor = Reactor()
else:
self.reactor = hs.get_reactor()
# the pusher makes lots of concurrent SSL connections to sygnal, and
# tends to do so in batches, so we need to allow the pool to keep
# lots of idle connections around.
pool = HTTPConnectionPool(self.reactor)
# XXX: The justification for using the cache factor here is that larger instances
# will need both more cache and more connections.
# Still, this should probably be a separate dial
pool.maxPersistentPerHost = max(
(100 * hs.config.caches.global_factor, 5))
pool.cachedConnectionTimeout = 2 * 60
self.agent = ProxyAgent(
self.reactor,
connectTimeout=15,
contextFactory=self.hs.get_http_client_context_factory(),
pool=pool,
http_proxy=http_proxy,
https_proxy=https_proxy,
)
if self._ip_blacklist:
# If we have an IP blacklist, we then install the blacklisting Agent
# which prevents direct access to IP addresses, that are not caught
# by the DNS resolution.
self.agent = BlacklistingAgentWrapper(
self.agent,
self.reactor,
ip_whitelist=self._ip_whitelist,
ip_blacklist=self._ip_blacklist,
)
def __init__(
self,
hs: "HomeServer",
treq_args: Dict[str, Any] = {},
ip_whitelist: Optional[IPSet] = None,
ip_blacklist: Optional[IPSet] = None,
http_proxy: Optional[bytes] = None,
https_proxy: Optional[bytes] = None,
):
"""
Args:
hs
treq_args: Extra keyword arguments to be given to treq.request.
ip_blacklist: The IP addresses that are blacklisted that
we may not request.
ip_whitelist: The whitelisted IP addresses, that we can
request if it were otherwise caught in a blacklist.
http_proxy: proxy server to use for http connections. host[:port]
https_proxy: proxy server to use for https connections. host[:port]
"""
self.hs = hs
self._ip_whitelist = ip_whitelist
self._ip_blacklist = ip_blacklist
self._extra_treq_args = treq_args
self.user_agent = hs.version_string
self.clock = hs.get_clock()
if hs.config.user_agent_suffix:
self.user_agent = "%s %s" % (self.user_agent,
hs.config.user_agent_suffix)
# We use this for our body producers to ensure that they use the correct
# reactor.
self._cooperator = Cooperator(
scheduler=_make_scheduler(hs.get_reactor()))
self.user_agent = self.user_agent.encode("ascii")
if self._ip_blacklist:
# If we have an IP blacklist, we need to use a DNS resolver which
# filters out blacklisted IP addresses, to prevent DNS rebinding.
self.reactor = BlacklistingReactorWrapper(hs.get_reactor(),
self._ip_whitelist,
self._ip_blacklist)
else:
self.reactor = hs.get_reactor()
# the pusher makes lots of concurrent SSL connections to sygnal, and
# tends to do so in batches, so we need to allow the pool to keep
# lots of idle connections around.
pool = HTTPConnectionPool(self.reactor)
# XXX: The justification for using the cache factor here is that larger instances
# will need both more cache and more connections.
# Still, this should probably be a separate dial
pool.maxPersistentPerHost = max(
(100 * hs.config.caches.global_factor, 5))
pool.cachedConnectionTimeout = 2 * 60
self.agent = ProxyAgent(
self.reactor,
hs.get_reactor(),
connectTimeout=15,
contextFactory=self.hs.get_http_client_context_factory(),
pool=pool,
http_proxy=http_proxy,
https_proxy=https_proxy,
)
if self._ip_blacklist:
# If we have an IP blacklist, we then install the blacklisting Agent
# which prevents direct access to IP addresses, that are not caught
# by the DNS resolution.
self.agent = BlacklistingAgentWrapper(
self.agent,
ip_whitelist=self._ip_whitelist,
ip_blacklist=self._ip_blacklist,
)
def test_http_request(self):
agent = ProxyAgent(self.reactor)
self._test_request_direct_connection(agent, b"http", b"test.com", b"")
