diff options
Diffstat (limited to 'synapse/federation')
| -rw-r--r-- | synapse/federation/federation_server.py | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py index 1d60137411..db4b83a505 100644 --- a/synapse/federation/federation_server.py +++ b/synapse/federation/federation_server.py @@ -843,8 +843,25 @@ class FederationServer(FederationBase): Codes.BAD_JSON, ) + # Note that get_room_version throws if the room does not exist here. room_version = await self.store.get_room_version(room_id) + if await self.store.is_partial_state_room(room_id): + # If our server is still only partially joined, we can't give a complete + # response to /send_join, /send_knock or /send_leave. + # This is because we will not be able to provide the server list (for partial + # joins) or the full state (for full joins). + # Return a 404 as we would if we weren't in the room at all. + logger.info( + f"Rejecting /send_{membership_type} to %s because it's a partial state room", + room_id, + ) + raise SynapseError( + 404, + f"Unable to handle /send_{membership_type} right now; this server is not fully joined.", + errcode=Codes.NOT_FOUND, + ) + if membership_type == Membership.KNOCK and not room_version.msc2403_knocking: raise SynapseError( 403, |