diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/http/federation/test_matrix_federation_agent.py | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tests/http/federation/test_matrix_federation_agent.py b/tests/http/federation/test_matrix_federation_agent.py index 626acdcaa3..4e51839d0f 100644 --- a/tests/http/federation/test_matrix_federation_agent.py +++ b/tests/http/federation/test_matrix_federation_agent.py @@ -36,6 +36,7 @@ from synapse.crypto.context_factory import FederationPolicyForHTTPS from synapse.http.federation.matrix_federation_agent import MatrixFederationAgent from synapse.http.federation.srv_resolver import Server from synapse.http.federation.well_known_resolver import ( + WELL_KNOWN_MAX_SIZE, WellKnownResolver, _cache_period_from_headers, ) @@ -1107,6 +1108,32 @@ class MatrixFederationAgentTests(unittest.TestCase): r = self.successResultOf(fetch_d) self.assertEqual(r.delegated_server, None) + def test_well_known_too_large(self): + """A well-known query that returns a result which is too large should be rejected.""" + self.reactor.lookups["testserv"] = "1.2.3.4" + + fetch_d = defer.ensureDeferred( + self.well_known_resolver.get_well_known(b"testserv") + ) + + # there should be an attempt to connect on port 443 for the .well-known + clients = self.reactor.tcpClients + self.assertEqual(len(clients), 1) + (host, port, client_factory, _timeout, _bindAddress) = clients.pop(0) + self.assertEqual(host, "1.2.3.4") + self.assertEqual(port, 443) + + self._handle_well_known_connection( + client_factory, + expected_sni=b"testserv", + response_headers={b"Cache-Control": b"max-age=1000"}, + content=b'{ "m.server": "' + (b"a" * WELL_KNOWN_MAX_SIZE) + b'" }', + ) + + # The result is sucessful, but disabled delegation. + r = self.successResultOf(fetch_d) + self.assertIsNone(r.delegated_server) + def test_srv_fallbacks(self): """Test that other SRV results are tried if the first one fails. """ |