From 6cddf24e361fe43f086307c833cd814dc03363b6 Mon Sep 17 00:00:00 2001 From: Mathieu Velten Date: Sat, 11 Feb 2023 00:31:05 +0100 Subject: Faster joins: don't stall when a user joins during a fast join (#14606) Fixes #12801. Complement tests are at https://github.com/matrix-org/complement/pull/567. Avoid blocking on full state when handling a subsequent join into a partial state room. Also always perform a remote join into partial state rooms, since we do not know whether the joining user has been banned and want to avoid leaking history to banned users. Signed-off-by: Mathieu Velten Co-authored-by: Sean Quah Co-authored-by: David Robertson --- synapse/api/errors.py | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'synapse/api') diff --git a/synapse/api/errors.py b/synapse/api/errors.py index c2c177fd71..9235ce6536 100644 --- a/synapse/api/errors.py +++ b/synapse/api/errors.py @@ -751,3 +751,25 @@ class ModuleFailedException(Exception): Raised when a module API callback fails, for example because it raised an exception. """ + + +class PartialStateConflictError(SynapseError): + """An internal error raised when attempting to persist an event with partial state + after the room containing the event has been un-partial stated. + + This error should be handled by recomputing the event context and trying again. + + This error has an HTTP status code so that it can be transported over replication. + It should not be exposed to clients. + """ + + @staticmethod + def message() -> str: + return "Cannot persist partial state event in un-partial stated room" + + def __init__(self) -> None: + super().__init__( + HTTPStatus.CONFLICT, + msg=PartialStateConflictError.message(), + errcode=Codes.UNKNOWN, + ) -- cgit 1.5.1