diff options
| -rw-r--r-- | changelog.d/14291.bugfix | 1 | ||||
| -rw-r--r-- | synapse/rest/client/room_batch.py | 7 |
2 files changed, 8 insertions, 0 deletions
diff --git a/changelog.d/14291.bugfix b/changelog.d/14291.bugfix new file mode 100644 index 0000000000..bac5065e94 --- /dev/null +++ b/changelog.d/14291.bugfix @@ -0,0 +1 @@ +Prevent history insertion ([MSC2716](https://github.com/matrix-org/matrix-spec-proposals/pull/2716)) during an partial join ([MSC3706](https://github.com/matrix-org/matrix-spec-proposals/pull/3706)). diff --git a/synapse/rest/client/room_batch.py b/synapse/rest/client/room_batch.py index dd91dabedd..10be4a781b 100644 --- a/synapse/rest/client/room_batch.py +++ b/synapse/rest/client/room_batch.py @@ -108,6 +108,13 @@ class RoomBatchSendEventRestServlet(RestServlet): errcode=Codes.MISSING_PARAM, ) + if await self.store.is_partial_state_room(room_id): + raise SynapseError( + HTTPStatus.BAD_REQUEST, + "Cannot insert history batches until we have fully joined the room", + errcode=Codes.UNABLE_DUE_TO_PARTIAL_STATE, + ) + # Verify the batch_id_from_query corresponds to an actual insertion event # and have the batch connected. if batch_id_from_query: |