post_upgrade() {
  if [ ! -e /etc/xrdp/rsakeys.ini ]; then
    xrdp-keygen xrdp /etc/xrdp/rsakeys.ini
  fi
}

post_install() {
  post_upgrade
}

pre_remove() {
  if [ -f /etc/xrdp/rsakeys.ini ]; then
    rm /etc/xrdp/rsakeys.ini
  fi
}