diff --git a/changelog.d/5794.misc b/changelog.d/5794.misc new file mode 100644 index 000000000..720e0ddcf --- /dev/null +++ b/changelog.d/5794.misc @@ -0,0 +1 @@ +Improve performance when making `.well-known` requests by sharing the SSL options between requests. diff --git a/synapse/crypto/context_factory.py b/synapse/crypto/context_factory.py index 4f48e8e88..06e63a96b 100644 --- a/synapse/crypto/context_factory.py +++ b/synapse/crypto/context_factory.py @@ -31,6 +31,7 @@ from twisted.internet.ssl import ( platformTrust, ) from twisted.python.failure import Failure +from twisted.web.iweb import IPolicyForHTTPS logger = logging.getLogger(__name__) @@ -74,6 +75,7 @@ class ServerContextFactory(ContextFactory): return self._context +@implementer(IPolicyForHTTPS) class ClientTLSOptionsFactory(object): """Factory for Twisted SSLClientConnectionCreators that are used to make connections to remote servers for federation. @@ -146,6 +148,12 @@ class ClientTLSOptionsFactory(object): f = Failure() tls_protocol.failVerification(f) + def creatorForNetloc(self, hostname, port): + """Implements the IPolicyForHTTPS interace so that this can be passed + directly to agents. + """ + return self.get_options(hostname) + @implementer(IOpenSSLClientConnectionCreator) class SSLClientConnectionCreator(object): diff --git a/synapse/http/federation/matrix_federation_agent.py b/synapse/http/federation/matrix_federation_agent.py index c03ddb724..a0d513983 100644 --- a/synapse/http/federation/matrix_federation_agent.py +++ b/synapse/http/federation/matrix_federation_agent.py @@ -64,10 +64,6 @@ class MatrixFederationAgent(object): tls_client_options_factory (ClientTLSOptionsFactory|None): factory to use for fetching client tls options, or none to disable TLS. - _well_known_tls_policy (IPolicyForHTTPS|None): - TLS policy to use for fetching .well-known files. None to use a default - (browser-like) implementation. - _srv_resolver (SrvResolver|None): SRVResolver impl to use for looking up SRV records. None to use a default implementation. @@ -81,7 +77,6 @@ class MatrixFederationAgent(object): self, reactor, tls_client_options_factory, - _well_known_tls_policy=None, _srv_resolver=None, _well_known_cache=well_known_cache, ): @@ -98,13 +93,12 @@ class MatrixFederationAgent(object): self._pool.maxPersistentPerHost = 5 self._pool.cachedConnectionTimeout = 2 * 60 - agent_args = {} - if _well_known_tls_policy is not None: - # the param is called 'contextFactory', but actually passing a - # contextfactory is deprecated, and it expects an IPolicyForHTTPS. - agent_args["contextFactory"] = _well_known_tls_policy _well_known_agent = RedirectAgent( - Agent(self._reactor, pool=self._pool, **agent_args) + Agent( + self._reactor, + pool=self._pool, + contextFactory=tls_client_options_factory, + ) ) self._well_known_agent = _well_known_agent diff --git a/tests/http/federation/test_matrix_federation_agent.py b/tests/http/federation/test_matrix_federation_agent.py index b906686b4..4255add09 100644 --- a/tests/http/federation/test_matrix_federation_agent.py +++ b/tests/http/federation/test_matrix_federation_agent.py @@ -75,7 +75,6 @@ class MatrixFederationAgentTests(TestCase): config_dict = default_config("test", parse=False) config_dict["federation_custom_ca_list"] = [get_test_ca_cert_file()] - # config_dict["trusted_key_servers"] = [] self._config = config = HomeServerConfig() config.parse_config_dict(config_dict, "", "") @@ -83,7 +82,6 @@ class MatrixFederationAgentTests(TestCase): self.agent = MatrixFederationAgent( reactor=self.reactor, tls_client_options_factory=ClientTLSOptionsFactory(config), - _well_known_tls_policy=TrustingTLSPolicyForHTTPS(), _srv_resolver=self.mock_resolver, _well_known_cache=self.well_known_cache, ) @@ -691,16 +689,18 @@ class MatrixFederationAgentTests(TestCase): not signed by a CA """ - # we use the same test server as the other tests, but use an agent - # with _well_known_tls_policy left to the default, which will not - # trust it (since the presented cert is signed by a test CA) + # we use the same test server as the other tests, but use an agent with + # the config left to the default, which will not trust it (since the + # presented cert is signed by a test CA) self.mock_resolver.resolve_service.side_effect = lambda _: [] self.reactor.lookups["testserv"] = "1.2.3.4" + config = default_config("test", parse=True) + agent = MatrixFederationAgent( reactor=self.reactor, - tls_client_options_factory=ClientTLSOptionsFactory(self._config), + tls_client_options_factory=ClientTLSOptionsFactory(config), _srv_resolver=self.mock_resolver, _well_known_cache=self.well_known_cache, )