From f784980d2b2bd3827bfef94b0360582b2ef228ba Mon Sep 17 00:00:00 2001 From: Mark Haines Date: Thu, 5 Jan 2017 11:26:30 +0000 Subject: [PATCH] Only send events that originate on this server. Or events that are sent via the federation "send_join" API. This should match the behaviour from before v0.18.5 and #1635 landed. --- synapse/events/__init__.py | 9 +++++++++ synapse/federation/transaction_queue.py | 12 ++++++++++++ synapse/handlers/federation.py | 4 ++++ 3 files changed, 25 insertions(+) diff --git a/synapse/events/__init__.py b/synapse/events/__init__.py index bcb8f33a58..8c71aeb5e4 100644 --- a/synapse/events/__init__.py +++ b/synapse/events/__init__.py @@ -36,6 +36,15 @@ class _EventInternalMetadata(object): def is_invite_from_remote(self): return getattr(self, "invite_from_remote", False) + def get_send_on_behalf_of(self): + """Whether this server should send the event on behalf of another server. + This is used by the federation "send_join" API to forward the initial join + event for a server in the room. + + returns a str with the name of the server this event is sent on behalf of. + """ + return getattr(self, "get_send_on_behalf_of", None) + def _event_dict_property(key): def getter(self): diff --git a/synapse/federation/transaction_queue.py b/synapse/federation/transaction_queue.py index 891c245bb4..7db7b806dc 100644 --- a/synapse/federation/transaction_queue.py +++ b/synapse/federation/transaction_queue.py @@ -61,6 +61,7 @@ class TransactionQueue(object): self.transport_layer = hs.get_federation_transport_client() self.clock = hs.get_clock() + self.is_mine_id = hs.is_mine_id # Is a mapping from destinations -> deferreds. Used to keep track # of which destinations have transactions in flight and when they are @@ -152,6 +153,12 @@ class TransactionQueue(object): break for event in events: + # Only send events for this server. + send_on_behalf_of = event.internal_metadata.get_send_on_behalf_of() + is_mine = self.is_mine_id(event.event_id) + if not is_mine and send_on_behalf_of is None: + continue + # Get the state from before the event. # We need to make sure that this is the state from before # the event and not from after it. @@ -167,6 +174,11 @@ class TransactionQueue(object): destinations = set( get_domain_from_id(user_id) for user_id in users_in_room ) + if send_on_behalf_of is not None: + # If we are sending the event on behalf of another server + # then it already has the event and there is no reason to + # send the event to it. + destinations.discard(send_on_behalf_of) logger.debug("Sending %s to %r", event, destinations) diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index 1d07e4d02b..8c93d6d39f 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -790,6 +790,10 @@ class FederationHandler(BaseHandler): ) event.internal_metadata.outlier = False + # Send this event on behalf of the origin server since they may not + # have an up to data view of the state of the room at this event so + # will not know which servers to send the event to. + event.internal_metadata.send_on_behalf_of = origin context, event_stream_id, max_stream_id = yield self._handle_new_event( origin, event