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Make sure a retention policy is a state event (#8527)

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* Make sure a retention policy is a state event

* Changelog
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Brendan Abolivier 2020-10-14 12:00:52 +01:00 committed by GitHub
parent ec606ea9e3
commit 3ee97a2748
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changelog.d/8527.bugfix Normal file
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@ -0,0 +1 @@
Fix a bug introduced in v1.7.0 that could cause Synapse to insert values from non-state `m.room.retention` events into the `room_retention` database table.

3
synapse/events/validator.py
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@ -83,6 +83,9 @@ class EventValidator:
Args: Args:
event (FrozenEvent): The event to validate. event (FrozenEvent): The event to validate.
""" """
if not event.is_state():
raise SynapseError(code=400, msg="must be a state event")
min_lifetime = event.content.get("min_lifetime") min_lifetime = event.content.get("min_lifetime")
max_lifetime = event.content.get("max_lifetime") max_lifetime = event.content.get("max_lifetime")

4
synapse/storage/databases/main/events.py
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@ -1270,6 +1270,10 @@ class PersistEventsStore:
) )
def _store_retention_policy_for_room_txn(self, txn, event): def _store_retention_policy_for_room_txn(self, txn, event):
if not event.is_state():
logger.debug("Ignoring non-state m.room.retention event")
return
if hasattr(event, "content") and ( if hasattr(event, "content") and (
"min_lifetime" in event.content or "max_lifetime" in event.content "min_lifetime" in event.content or "max_lifetime" in event.content
): ):