mod_http_oauth2: Strip unknown extra fields from client registration We shouldn't sign things we don't understand! RFC 7591 section-2 states: > The authorization server MUST ignore any client metadata sent by the > client that it does not understand (for instance, by silently removing > unknown metadata from the client's registration record during > processing). Prevents grandfathering in of unvalidated data that might become used later, especially since the 'additionalProperties' schema keyword was removed in 698fef74ce53

module:depends("audit");
-- luacheck: read globals module.audit

module:hook("authentication-failure", function(event)
	local session = event.session;
	module:audit(session.sasl_handler.username, "authentication-failure", {
		session = session,
	});
end)

module:hook("authentication-success", function(event)
	local session = event.session;
	module:audit(session.sasl_handler.username, "authentication-success", {
		session = session,
	});
end)