ExpressVPN - Connect to Random VPN Server

random_connection.sh

#!/bin/bash

# 
# Express VPN Connect to Random Location
#   *** Note: It is highly recommended the client be configured to block traffic on vpn disconnect
#


# 
# Options - accept vpn cli as argument
# Currently Supported CLIs
#   expresso (MAC OS): https://github.com/sttz/expresso
#   expressvpn (Linux): https://www.expressvpn.com/support/vpn-setup/app-for-linux/#download 
# 

while getopts v: flag
do
    case "${flag}" in
        v) VPN=${OPTARG};;
    esac
done
echo "VPN-CLI: $VPN";

# 
# Disconnect from current VPN Node
# It is recommended that smart lock is enabled before using this script to avoid leaking traffic
# Sleep for 1 second following disconnection to avoid potential race conditions
#   *** Note: It is highly recommended the client be configured to block traffic on vpn disconnect
# 

case $VPN in
    expresso)
        expresso disconnect >/dev/null 2>&1
        ;;
    expressvpn)
        expressvpn disconnect >/dev/null 2>&1
        ;;
esac

sleep 1 
echo "[$(date +'%H:%M:%S')] VPN Disconnected."

# 
# Select a new VPN location
# Parses output form the 'list' or 'locations' command and chooses a random server 
# 

case $VPN in
    expresso)
        VPN_LOCATION=$(expresso locations | grep -o '([0-9])\|([0-9][0-9])\|([0-9][0-9][0-9])' | tr -d '()' | gshuf | head -n 1)
        ;;
    expressvpn)
        VPN_LOCATION=$(expressvpn list | awk -F" " '{ print $1 }' | tail -n +4 | head -n -3 | shuf | head -n 1)
        echo $(expressvpn list | awk -F" " '{ print $1 }')
        ;;
esac

echo "[$(date +'%H:%M:%S')] New VPN location selected: ${VPN_LOCATION}"


# 
# Connect to newly selected location
# Sleep for 1 second following connection to avoid potential traffic leakage
#   *** Note: It is highly recommended the client be configured to block traffic on vpn disconnect
# 

echo "[$(date +'%H:%M:%S')] Connecting to the new location."

case $VPN in
    expresso)
        expresso connect -c ${VPN_LOCATION}
        ;;
    expressvpn)
        expressvpn connect ${VPN_LOCATION}
        ;;
esac

sleep 1 
echo "[$(date +'%H:%M:%S')] Connected to ${VPN_LOCATION}"