diff options
Diffstat (limited to 'synapse/federation/federation_client.py')
| -rw-r--r-- | synapse/federation/federation_client.py | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/synapse/federation/federation_client.py b/synapse/federation/federation_client.py index 2ab4dec88f..670186f548 100644 --- a/synapse/federation/federation_client.py +++ b/synapse/federation/federation_client.py @@ -227,7 +227,7 @@ class FederationClient(FederationBase): ) async def backfill( - self, dest: str, room_id: str, limit: int, extremities: Iterable[str] + self, dest: str, room_id: str, limit: int, extremities: Collection[str] ) -> Optional[List[EventBase]]: """Requests some more historic PDUs for the given room from the given destination server. @@ -237,6 +237,8 @@ class FederationClient(FederationBase): room_id: The room_id to backfill. limit: The maximum number of events to return. extremities: our current backwards extremities, to backfill from + Must be a Collection that is falsy when empty. + (Iterable is not enough here!) """ logger.debug("backfill extrem=%s", extremities) @@ -250,11 +252,22 @@ class FederationClient(FederationBase): logger.debug("backfill transaction_data=%r", transaction_data) + if not isinstance(transaction_data, dict): + # TODO we probably want an exception type specific to federation + # client validation. + raise TypeError("Backfill transaction_data is not a dict.") + + transaction_data_pdus = transaction_data.get("pdus") + if not isinstance(transaction_data_pdus, list): + # TODO we probably want an exception type specific to federation + # client validation. + raise TypeError("transaction_data.pdus is not a list.") + room_version = await self.store.get_room_version(room_id) pdus = [ event_from_pdu_json(p, room_version, outlier=False) - for p in transaction_data["pdus"] + for p in transaction_data_pdus ] # Check signatures and hash of pdus, removing any from the list that fail checks |