diff options
| -rw-r--r-- | synapse/handlers/_base.py | 16 | ||||
| -rw-r--r-- | synapse/handlers/room.py | 23 |
2 files changed, 31 insertions, 8 deletions
diff --git a/synapse/handlers/_base.py b/synapse/handlers/_base.py index bdade98bf7..51bd1ee4de 100644 --- a/synapse/handlers/_base.py +++ b/synapse/handlers/_base.py @@ -199,8 +199,7 @@ class BaseHandler(object): # events in the room, because we don't know enough about the graph # fragment we received to treat it like a graph, so the above returned # no relevant events. It may have returned some events (if we have - # joined and left the room), but not useful ones, like the invite. So we - # forcibly set our context to the invite we received over federation. + # joined and left the room), but not useful ones, like the invite. if ( not self.is_host_in_room(context.current_state) and builder.type == EventTypes.Member @@ -208,7 +207,18 @@ class BaseHandler(object): prev_member_event = yield self.store.get_room_member( builder.sender, builder.room_id ) - if prev_member_event: + + # if we have the prev_member_event in context, we didn't receive + # the invite over federation. (More likely is that the inviting + # user, and all other local users, have left, making + # is_host_in_room return false). + # + context_events = (e.event_id for e in context.current_state.values()) + + if prev_member_event and not prev_member_event.event_id in context_events: + # The prev_member_event is missing from context, so it must + # have arrived over federation and is an outlier. We forcibly + # set our context to the invite we received over federation builder.prev_events = ( prev_member_event.event_id, prev_member_event.prev_events diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py index d2de23a6cc..714bff1750 100644 --- a/synapse/handlers/room.py +++ b/synapse/handlers/room.py @@ -521,8 +521,24 @@ class RoomMemberHandler(BaseHandler): action = "remote_join" elif event.membership == Membership.LEAVE: is_host_in_room = self.is_host_in_room(context.current_state) + if not is_host_in_room: - action = "remote_reject" + # perhaps we've been invited + inviter = self.get_inviter(target_user.to_string(), context.current_state) + if not inviter: + raise SynapseError(404, "Not a known room") + + if inviter.domain == self.server_name: + # the inviter was on our server, but has now left. Carry on + # with the normal rejection codepath. + # + # This is a bit of a hack, because the room might still be + # active on other servers. + pass + else: + # send the rejection to the inviter's HS. + remote_room_hosts = [inviter.domain] + action = "remote_reject" federation_handler = self.hs.get_handlers().federation_handler @@ -541,11 +557,8 @@ class RoomMemberHandler(BaseHandler): event.content, ) elif action == "remote_reject": - inviter = self.get_inviter(target_user.to_string(), context.current_state) - if not inviter: - raise SynapseError(404, "No known servers") yield federation_handler.do_remotely_reject_invite( - [inviter.domain], + remote_room_hosts, room_id, event.user_id ) |