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Reject history insertion during partial joins (#14291)

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David Robertson 2022-10-27 10:52:23 +01:00 committed by GitHub
parent 40fa8294e3
commit cbe01ccc3f
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changelog.d/14291.bugfix Normal file
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@ -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)).

7
synapse/rest/client/room_batch.py
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@ -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: