message: Bypass dns_resolve if IP rules are empty
diff: @@ -332,6 +332,9 @@ impl AccessControl {
  if let Some(value) = self.check_host_in_proxy_list(host) {
  return value;
  }
  + if self.is_ipv4_empty() && self.is_ipv6_empty() {
  + return !self.is_default_in_proxy_list();
  + }
  if let Ok(vaddr) = context.dns_resolve(host, port).await {
  for addr in vaddr {
  if !self.check_ip_in_proxy_list(&addr.ip()) {
  