Stop sending incorrect knock_state_events. (#16403)
Synapse was incorrectly implemented with a knock_state_events property on some APIs (instead of knock_room_state). This was correct in Synapse 1.70.0, but *both* fields were sent to also be compatible with Synapse versions expecting the wrong field. Enough time has passed that only the correct field needs to be included/handled.
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Remove legacy unspecced `knock_state_events` field returned in some responses.
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@ -1402,7 +1402,7 @@ class FederationClient(FederationBase):
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The remote homeserver return some state from the room. The response
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dictionary is in the form:
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{"knock_state_events": [<state event dict>, ...]}
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{"knock_room_state": [<state event dict>, ...]}
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The list of state events may be empty.
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@ -1429,7 +1429,7 @@ class FederationClient(FederationBase):
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The remote homeserver can optionally return some state from the room. The response
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dictionary is in the form:
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{"knock_state_events": [<state event dict>, ...]}
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{"knock_room_state": [<state event dict>, ...]}
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The list of state events may be empty.
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"""
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@ -850,14 +850,7 @@ class FederationServer(FederationBase):
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context, self._room_prejoin_state_types
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)
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)
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return {
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"knock_room_state": stripped_room_state,
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# Since v1.37, Synapse incorrectly used "knock_state_events" for this field.
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# Thus, we also populate a 'knock_state_events' with the same content to
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# support old instances.
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# See https://github.com/matrix-org/synapse/issues/14088.
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"knock_state_events": stripped_room_state,
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}
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return {"knock_room_state": stripped_room_state}
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async def _on_send_membership_event(
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self, origin: str, content: JsonDict, membership_type: str, room_id: str
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@ -431,7 +431,7 @@ class TransportLayerClient:
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The remote homeserver can optionally return some state from the room. The response
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dictionary is in the form:
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{"knock_state_events": [<state event dict>, ...]}
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{"knock_room_state": [<state event dict>, ...]}
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The list of state events may be empty.
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"""
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@ -868,19 +868,10 @@ class FederationHandler:
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# This is a bit of a hack and is cribbing off of invites. Basically we
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# store the room state here and retrieve it again when this event appears
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# in the invitee's sync stream. It is stripped out for all other local users.
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stripped_room_state = (
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knock_response.get("knock_room_state")
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# Since v1.37, Synapse incorrectly used "knock_state_events" for this field.
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# Thus, we also check for a 'knock_state_events' to support old instances.
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# See https://github.com/matrix-org/synapse/issues/14088.
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or knock_response.get("knock_state_events")
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)
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stripped_room_state = knock_response.get("knock_room_state")
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if stripped_room_state is None:
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raise KeyError(
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"Missing 'knock_room_state' (or legacy 'knock_state_events') field in "
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"send_knock response"
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)
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raise KeyError("Missing 'knock_room_state' field in send_knock response")
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event.unsigned["knock_room_state"] = stripped_room_state
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@ -308,7 +308,7 @@ class FederationKnockingTestCase(
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self.assertEqual(200, channel.code, channel.result)
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# Check that we got the stripped room state in return
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room_state_events = channel.json_body["knock_state_events"]
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room_state_events = channel.json_body["knock_room_state"]
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# Validate the stripped room state events
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self.check_knock_room_state_against_room_state(
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