Toggle NordVPN using OpenVPN

nordvpn.sh

# make sure you have - openvpn, jq, curl, sed

CURL_CMD='curl -s -H "accept-encoding: gzip, deflate" --compressed'

load() {
  security="udp"
  cd ~/.nordvpn
  rm -f *.ovpn
  link="https://downloads.nordcdn.com/configs/files/ovpn_${security}/servers/$1.${security}.ovpn"
  filename=nordvpn.conf
  $CURL_CMD $link > $filename
  sudo cp $filename /etc/openvpn/client/$filename
  sudo sed -i 's#auth-user-pass#auth-user-pass /etc/nordvpn.conf#g' /etc/openvpn/client/nordvpn.conf
}

ask() {
  echo -n "Username: "
  read username
  echo -n "Password: "
  read -s password
  cred_file="/etc/nordvpn.conf"
  sudo echo "$username\n$password" > ${cred_file}
  sudo chown root:root ${cred_file}
  sudo chmod 600 ${cred_file}
}

status() {
  $CURL_CMD 'https://nordvpn.com/wp-admin/admin-ajax.php?action=get_user_info_data' | jq -r .status
}

on() {
  if systemctl is-active --quiet openvpn-client@nordvpn; then
    off
  fi
  echo on
  if [ -z $1 ]; then
    domain=`$CURL_CMD "https://nordvpn.com/wp-admin/admin-ajax.php?action=servers_recommendations" | jq -r .[0].hostname`
  else
    country=`grep -Irw --color=never $1 countries.txt  | cut -d' ' -f1`
    domain=`$CURL_CMD "https://nordvpn.com/wp-admin/admin-ajax.php?action=servers_recommendations&filters=\{%22country_id%22:$country\}" | jq -r .[0].hostname`
  fi
  echo $domain
  load $domain
  sudo systemctl start openvpn-client@nordvpn
}

off() {
  echo off
  sudo systemctl stop openvpn-client@nordvpn
}

toggle() {
  if systemctl is-active --quiet openvpn-client@nordvpn; then
    off
  else
    on
  fi
}

countries() {
  $CURL_CMD "https://nordvpn.com/wp-admin/admin-ajax.php?action=servers_countries" | jq -r '.[] | "\(.id) \(.code) \(.name)"' > countries.txt
}

case $1 in
  "")
    echo [default] toggling NordVPN.
    toggle
    ;;
  on)
    echo turning on NordVPN.
    on $2
    ;;
  off)
    echo turning off NordVPN.
    off
    ;;
  toggle)
    echo toggling NordVPN.
    toggle
    ;;
  status)
    echo checking NordVPN status.
    status
    ;;
  countries)
    echo refreshing NordVPN counties.
    countries
    ;;
  *)
    echo Unknown flag
    ;;
esac