From c270355349d589e5e8634f0ca8049a16ec7ea4a3 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Tue, 6 Aug 2024 10:39:11 +0100 Subject: SS: Reset connection if token is unrecognized (#17529) This triggers the client to start a new sliding sync connection. If we don't do this and the client asks for the full range of rooms, we end up sending down all rooms and their state from scratch (which can be very slow) This causes things like https://github.com/element-hq/element-x-ios/issues/3115 after we restart the server --------- Co-authored-by: Eric Eastwood --- synapse/api/errors.py | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'synapse/api/errors.py') diff --git a/synapse/api/errors.py b/synapse/api/errors.py index dd4a1ae706..99fc7eab54 100644 --- a/synapse/api/errors.py +++ b/synapse/api/errors.py @@ -128,6 +128,10 @@ class Codes(str, Enum): # MSC2677 DUPLICATE_ANNOTATION = "M_DUPLICATE_ANNOTATION" + # MSC3575 we are telling the client they need to reset their sliding sync + # connection. + UNKNOWN_POS = "M_UNKNOWN_POS" + class CodeMessageException(RuntimeError): """An exception with integer code, a message string attributes and optional headers. @@ -847,3 +851,17 @@ class PartialStateConflictError(SynapseError): msg=PartialStateConflictError.message(), errcode=Codes.UNKNOWN, ) + + +class SlidingSyncUnknownPosition(SynapseError): + """An error that Synapse can return to signal to the client to expire their + sliding sync connection (i.e. send a new request without a `?since=` + param). + """ + + def __init__(self) -> None: + super().__init__( + HTTPStatus.BAD_REQUEST, + msg="Unknown position", + errcode=Codes.UNKNOWN_POS, + ) -- cgit 1.4.1