From 5b3af1c7d0c5a8901fada7648136f186726fd135 Mon Sep 17 00:00:00 2001 From: David Robertson Date: Tue, 17 Jan 2023 12:44:15 +0000 Subject: [PATCH] Stabilise serving partial join responses (#14839) Serving partial join responses is no longer experimental. They will only be served under the stable identifier if the the undocumented config flag experimental.msc3706_enabled is set to true. Synapse continues to request a partial join only if the undocumented config flag experimental.faster_joins is set to true; this setting remains present and unaffected. --- changelog.d/14839.feature | 1 + .../conf/workers-shared-extra.yaml.j2 | 2 -- synapse/config/experimental.py | 6 +++++- .../federation/transport/server/federation.py | 21 +++++++++---------- tests/federation/test_federation_server.py | 3 +-- 5 files changed, 17 insertions(+), 16 deletions(-) create mode 100644 changelog.d/14839.feature diff --git a/changelog.d/14839.feature b/changelog.d/14839.feature new file mode 100644 index 0000000000..a4206be007 --- /dev/null +++ b/changelog.d/14839.feature @@ -0,0 +1 @@ +Faster joins: always serve a partial join response to servers that request it with the stable query param. diff --git a/docker/complement/conf/workers-shared-extra.yaml.j2 b/docker/complement/conf/workers-shared-extra.yaml.j2 index 1170694df5..7e9ec23808 100644 --- a/docker/complement/conf/workers-shared-extra.yaml.j2 +++ b/docker/complement/conf/workers-shared-extra.yaml.j2 @@ -94,8 +94,6 @@ allow_device_name_lookup_over_federation: true experimental_features: # Enable history backfilling support msc2716_enabled: true - # server-side support for partial state in /send_join responses - msc3706_enabled: true {% if not workers_in_use %} # client-side support for partial state in /send_join responses faster_joins: true diff --git a/synapse/config/experimental.py b/synapse/config/experimental.py index 72a17e0616..0444ef8244 100644 --- a/synapse/config/experimental.py +++ b/synapse/config/experimental.py @@ -75,11 +75,15 @@ class ExperimentalConfig(Config): ) # MSC3706 (server-side support for partial state in /send_join responses) + # Synapse will always serve partial state responses to requests using the stable + # query parameter `omit_members`. If this flag is set, Synapse will also serve + # partial state responses to requests using the unstable query parameter + # `org.matrix.msc3706.partial_state`. self.msc3706_enabled: bool = experimental.get("msc3706_enabled", False) # experimental support for faster joins over federation # (MSC2775, MSC3706, MSC3895) - # requires a target server with msc3706_enabled enabled. + # requires a target server that can provide a partial join response (MSC3706) self.faster_joins_enabled: bool = experimental.get("faster_joins", False) # MSC3720 (Account status endpoint) diff --git a/synapse/federation/transport/server/federation.py b/synapse/federation/transport/server/federation.py index c0a700905b..17c427387e 100644 --- a/synapse/federation/transport/server/federation.py +++ b/synapse/federation/transport/server/federation.py @@ -422,7 +422,7 @@ class FederationV2SendJoinServlet(BaseFederationServerServlet): server_name: str, ): super().__init__(hs, authenticator, ratelimiter, server_name) - self._msc3706_enabled = hs.config.experimental.msc3706_enabled + self._read_msc3706_query_param = hs.config.experimental.msc3706_enabled async def on_PUT( self, @@ -436,16 +436,15 @@ class FederationV2SendJoinServlet(BaseFederationServerServlet): # match those given in content partial_state = False - if self._msc3706_enabled: - # The stable query parameter wins, if it disagrees with the unstable - # parameter for some reason. - stable_param = parse_boolean_from_args(query, "omit_members", default=None) - if stable_param is not None: - partial_state = stable_param - else: - partial_state = parse_boolean_from_args( - query, "org.matrix.msc3706.partial_state", default=False - ) + # The stable query parameter wins, if it disagrees with the unstable + # parameter for some reason. + stable_param = parse_boolean_from_args(query, "omit_members", default=None) + if stable_param is not None: + partial_state = stable_param + elif self._read_msc3706_query_param: + partial_state = parse_boolean_from_args( + query, "org.matrix.msc3706.partial_state", default=False + ) result = await self.handler.on_send_join_request( origin, content, room_id, caller_supports_partial_state=partial_state diff --git a/tests/federation/test_federation_server.py b/tests/federation/test_federation_server.py index 27770304be..be719e49c0 100644 --- a/tests/federation/test_federation_server.py +++ b/tests/federation/test_federation_server.py @@ -211,9 +211,8 @@ class SendJoinFederationTests(unittest.FederatingHomeserverTestCase): ) self.assertEqual(r[("m.room.member", joining_user)].membership, "join") - @override_config({"experimental_features": {"msc3706_enabled": True}}) def test_send_join_partial_state(self) -> None: - """When MSC3706 support is enabled, /send_join should return partial state""" + """/send_join should return partial state, if requested""" joining_user = "@misspiggy:" + self.OTHER_SERVER_NAME join_result = self._make_join(joining_user)