async def _locally_reject_invite(
self,
invite_event: EventBase,
txn_id: Optional[str],
requester: Requester,
content: JsonDict,
) -> Tuple[str, int]:
"""Generate a local invite rejection
This is called after we fail to reject an invite via a remote server. It
generates an out-of-band membership event locally.
Args:
invite_event: the invite to be rejected
txn_id: optional transaction ID supplied by the client
requester: user making the rejection request, according to the access token
content: additional content to include in the rejection event.
Normally an empty dict.
"""
room_id = invite_event.room_id
target_user = invite_event.state_key
content["membership"] = Membership.LEAVE
event_dict = {
"type": EventTypes.Member,
"room_id": room_id,
"sender": target_user,
"content": content,
"state_key": target_user,
}
# the auth events for the new event are the same as that of the invite, plus
# the invite itself.
#
# the prev_events are just the invite.
prev_event_ids = [invite_event.event_id]
auth_event_ids = invite_event.auth_event_ids() + prev_event_ids
event, context = await self.event_creation_handler.create_event(
requester,
event_dict,
txn_id=txn_id,
prev_event_ids=prev_event_ids,
auth_event_ids=auth_event_ids,
)
event.internal_metadata.outlier = True
event.internal_metadata.out_of_band_membership = True
result_event = await self.event_creation_handler.handle_new_client_event(
requester, event, context, extra_users=[UserID.from_string(target_user)],
)
# we know it was persisted, so must have a stream ordering
assert result_event.internal_metadata.stream_ordering
return result_event.event_id, result_event.internal_metadata.stream_ordering
async def check_auth_rules_from_context(
self,
room_version_obj: RoomVersion,
event: EventBase,
context: EventContext,
) -> None:
"""Check an event passes the auth rules at its own auth events"""
auth_event_ids = event.auth_event_ids()
auth_events_by_id = await self._store.get_events(auth_event_ids)
check_auth_rules_for_event(room_version_obj, event, auth_events_by_id.values())
async def check_auth_rules_from_context(
self,
event: EventBase,
context: EventContext,
) -> None:
"""Check an event passes the auth rules at its own auth events"""
await check_state_independent_auth_rules(self._store, event)
auth_event_ids = event.auth_event_ids()
auth_events_by_id = await self._store.get_events(auth_event_ids)
check_state_dependent_auth_rules(event, auth_events_by_id.values())
