From c9c3aea9b189cb606d7ec2905dad2c87acc039ef Mon Sep 17 00:00:00 2001 From: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com> Date: Tue, 2 Nov 2021 10:39:02 +0000 Subject: [PATCH] Fix providing a `RoomStreamToken` instance to `_notify_app_services_ephemeral` (#11137) Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com> --- changelog.d/11137.misc | 1 + synapse/handlers/appservice.py | 22 ++++++++++--- synapse/notifier.py | 38 +++++----------------- synapse/storage/databases/main/devices.py | 4 +-- synapse/storage/databases/main/presence.py | 2 +- 5 files changed, 30 insertions(+), 37 deletions(-) create mode 100644 changelog.d/11137.misc diff --git a/changelog.d/11137.misc b/changelog.d/11137.misc new file mode 100644 index 000000000..f0d6476f4 --- /dev/null +++ b/changelog.d/11137.misc @@ -0,0 +1 @@ +Remove and document unnecessary `RoomStreamToken` checks in application service ephemeral event code. \ No newline at end of file diff --git a/synapse/handlers/appservice.py b/synapse/handlers/appservice.py index 36c206dae..67f8ffcaf 100644 --- a/synapse/handlers/appservice.py +++ b/synapse/handlers/appservice.py @@ -182,7 +182,7 @@ class ApplicationServicesHandler: def notify_interested_services_ephemeral( self, stream_key: str, - new_token: Optional[int], + new_token: Union[int, RoomStreamToken], users: Optional[Collection[Union[str, UserID]]] = None, ) -> None: """ @@ -203,7 +203,7 @@ class ApplicationServicesHandler: Appservices will only receive ephemeral events that fall within their registered user and room namespaces. - new_token: The latest stream token. + new_token: The stream token of the event. users: The users that should be informed of the new event, if any. """ if not self.notify_appservices: @@ -212,6 +212,19 @@ class ApplicationServicesHandler: if stream_key not in ("typing_key", "receipt_key", "presence_key"): return + # Assert that new_token is an integer (and not a RoomStreamToken). + # All of the supported streams that this function handles use an + # integer to track progress (rather than a RoomStreamToken - a + # vector clock implementation) as they don't support multiple + # stream writers. + # + # As a result, we simply assert that new_token is an integer. + # If we do end up needing to pass a RoomStreamToken down here + # in the future, using RoomStreamToken.stream (the minimum stream + # position) to convert to an ascending integer value should work. + # Additional context: https://github.com/matrix-org/synapse/pull/11137 + assert isinstance(new_token, int) + services = [ service for service in self.store.get_app_services() @@ -231,14 +244,13 @@ class ApplicationServicesHandler: self, services: List[ApplicationService], stream_key: str, - new_token: Optional[int], + new_token: int, users: Collection[Union[str, UserID]], ) -> None: logger.debug("Checking interested services for %s" % (stream_key)) with Measure(self.clock, "notify_interested_services_ephemeral"): for service in services: - # Only handle typing if we have the latest token - if stream_key == "typing_key" and new_token is not None: + if stream_key == "typing_key": # Note that we don't persist the token (via set_type_stream_id_for_appservice) # for typing_key due to performance reasons and due to their highly # ephemeral nature. diff --git a/synapse/notifier.py b/synapse/notifier.py index 1882fffd2..60e540989 100644 --- a/synapse/notifier.py +++ b/synapse/notifier.py @@ -383,29 +383,6 @@ class Notifier: except Exception: logger.exception("Error notifying application services of event") - def _notify_app_services_ephemeral( - self, - stream_key: str, - new_token: Union[int, RoomStreamToken], - users: Optional[Collection[Union[str, UserID]]] = None, - ) -> None: - """Notify application services of ephemeral event activity. - - Args: - stream_key: The stream the event came from. - new_token: The value of the new stream token. - users: The users that should be informed of the new event, if any. - """ - try: - stream_token = None - if isinstance(new_token, int): - stream_token = new_token - self.appservice_handler.notify_interested_services_ephemeral( - stream_key, stream_token, users or [] - ) - except Exception: - logger.exception("Error notifying application services of event") - def _notify_pusher_pool(self, max_room_stream_token: RoomStreamToken): try: self._pusher_pool.on_new_notifications(max_room_stream_token) @@ -467,12 +444,15 @@ class Notifier: self.notify_replication() - # Notify appservices - self._notify_app_services_ephemeral( - stream_key, - new_token, - users, - ) + # Notify appservices. + try: + self.appservice_handler.notify_interested_services_ephemeral( + stream_key, + new_token, + users, + ) + except Exception: + logger.exception("Error notifying application services of event") def on_new_replication_data(self) -> None: """Used to inform replication listeners that something has happened diff --git a/synapse/storage/databases/main/devices.py b/synapse/storage/databases/main/devices.py index b15cd030e..9ccc66e58 100644 --- a/synapse/storage/databases/main/devices.py +++ b/synapse/storage/databases/main/devices.py @@ -427,7 +427,7 @@ class DeviceWorkerStore(SQLBaseStore): user_ids: the users who were signed Returns: - THe new stream ID. + The new stream ID. """ async with self._device_list_id_gen.get_next() as stream_id: @@ -1322,7 +1322,7 @@ class DeviceStore(DeviceWorkerStore, DeviceBackgroundUpdateStore): async def add_device_change_to_streams( self, user_id: str, device_ids: Collection[str], hosts: List[str] - ): + ) -> int: """Persist that a user's devices have been updated, and which hosts (if any) should be poked. """ diff --git a/synapse/storage/databases/main/presence.py b/synapse/storage/databases/main/presence.py index 12cf6995e..cc0eebdb4 100644 --- a/synapse/storage/databases/main/presence.py +++ b/synapse/storage/databases/main/presence.py @@ -92,7 +92,7 @@ class PresenceStore(PresenceBackgroundUpdateStore): prefilled_cache=presence_cache_prefill, ) - async def update_presence(self, presence_states): + async def update_presence(self, presence_states) -> Tuple[int, int]: assert self._can_persist_presence stream_ordering_manager = self._presence_id_gen.get_next_mult(