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Check third party rules before persisting knocks over federation (#10212)

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An accidental mis-ordering of operations during #6739 technically allowed an incoming knock event over federation in before checking it against any configured Third Party Access Rules modules.

This PR corrects that by performing the TPAR check *before* persisting the event.
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Andrew Morgan 2021-06-21 11:57:09 +01:00 committed by GitHub
parent 107c06081f
commit 182147195b
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2 changed files with 3 additions and 2 deletions
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changelog.d/10212.feature Normal file
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@ -0,0 +1 @@
Implement "room knocking" as per [MSC2403](https://github.com/matrix-org/matrix-doc/pull/2403). Contributed by Sorunome and anoa.

4
synapse/handlers/federation.py
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@ -2086,8 +2086,6 @@ class FederationHandler(BaseHandler):
context = await self.state_handler.compute_event_context(event) context = await self.state_handler.compute_event_context(event)
await self._auth_and_persist_event(origin, event, context)
event_allowed = await self.third_party_event_rules.check_event_allowed( event_allowed = await self.third_party_event_rules.check_event_allowed(
event, context event, context
) )
@ -2097,6 +2095,8 @@ class FederationHandler(BaseHandler):
403, "This event is not allowed in this context", Codes.FORBIDDEN 403, "This event is not allowed in this context", Codes.FORBIDDEN
) )
await self._auth_and_persist_event(origin, event, context)
return context return context
async def get_state_for_pdu(self, room_id: str, event_id: str) -> List[EventBase]: async def get_state_for_pdu(self, room_id: str, event_id: str) -> List[EventBase]: