diff options
Diffstat (limited to '')
| -rw-r--r-- | changelog.d/13254.misc | 1 | ||||
| -rw-r--r-- | synapse/notifier.py | 18 |
2 files changed, 19 insertions, 0 deletions
diff --git a/changelog.d/13254.misc b/changelog.d/13254.misc new file mode 100644 index 0000000000..cba6b9ee0f --- /dev/null +++ b/changelog.d/13254.misc @@ -0,0 +1 @@ +Preparatory work for a per-room rate limiter on joins. diff --git a/synapse/notifier.py b/synapse/notifier.py index 54b0ec4b97..c42bb8266a 100644 --- a/synapse/notifier.py +++ b/synapse/notifier.py @@ -228,6 +228,7 @@ class Notifier: # Called when there are new things to stream over replication self.replication_callbacks: List[Callable[[], None]] = [] + self._new_join_in_room_callbacks: List[Callable[[str, str], None]] = [] self._federation_client = hs.get_federation_http_client() @@ -280,6 +281,19 @@ class Notifier: """ self.replication_callbacks.append(cb) + def add_new_join_in_room_callback(self, cb: Callable[[str, str], None]) -> None: + """Add a callback that will be called when a user joins a room. + + This only fires on genuine membership changes, e.g. "invite" -> "join". + Membership transitions like "join" -> "join" (for e.g. displayname changes) do + not trigger the callback. + + When called, the callback receives two arguments: the event ID and the room ID. + It should *not* return a Deferred - if it needs to do any asynchronous work, a + background thread should be started and wrapped with run_as_background_process. + """ + self._new_join_in_room_callbacks.append(cb) + async def on_new_room_event( self, event: EventBase, @@ -723,6 +737,10 @@ class Notifier: for cb in self.replication_callbacks: cb() + def notify_user_joined_room(self, event_id: str, room_id: str) -> None: + for cb in self._new_join_in_room_callbacks: + cb(event_id, room_id) + def notify_remote_server_up(self, server: str) -> None: """Notify any replication that a remote server has come back up""" # We call federation_sender directly rather than registering as a |