Openconnect init script

oc

#! /bin/bash
### BEGIN INIT INFO
# Provides:          openconnect
# Required-Start:    $local_fs $remote_fs $network
# Required-Stop:     $local_fs $remote_fs $network
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Basic script to connect to a SSL VPN using Openconnect
### END INIT INFO

# Define PATH
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"

# VPN Variables
HOST="https://##VPNURL##"
USER="##USERNAME##"
#PASS="PASSWORD"
#CERT="/my/cert.pem"
#KEY="/my/key.pem"

# Set pidfile
PIDFILE="/var/run/openconnect.pid"

function start() {
    # Check if process is running. Exit in this case.
    [ -f ${PIDFILE} ] && ps -p $(< ${PIDFILE}) &> /dev/null && \
    echo "Openconnect is already running." && exit 0
    
    # Must be root
    [ ${UID} -ne 0 ] && echo "You must be root to run this script." && exit 1
    
    # Connect
    # For now if not on OSX ask for password on command prompt
    if [[ $(uname) == "Darwin" ]]; then
        VPN_PASS=$(osascript -e 'display dialog "RSA Password" default answer "" with title "OpenConnect VPN" with hidden answer' | awk -F'[:,]' '{print $4}')
    else
        stty -echo
        printf "key and RSA password:"
        read VPN_PASS
        stty echo
        printf "\n"
    fi
    
    openconnect -b --user=${USER} ${HOST} --pid-file=${PIDFILE} --syslog --passwd-on-stdin  <<< ${VPN_PASS}
    [ $? -ne 0 ] && echo "Openconnect failed to start!" && \
    rm -f ${PIDFILE} && exit 1
}

function stop() {
    if [ -f ${PIDFILE} ] && ps -p $(< ${PIDFILE}) &> /dev/null; then
        # Pid exists, kill process and remove pidfile
        [ ${UID} -ne 0 ] && echo "You must be root to run this script." && exit 1
        kill $(< ${PIDFILE}) && rm -f ${PIDFILE}
    else
        echo "Openconnect is not running!"
    fi
}

function status() {
    if [ -f ${PIDFILE} ] && ps -p $(< ${PIDFILE}) &> /dev/null; then
        echo "Openconnect is running."
        runningtime=$(ps -p $(< ${PIDFILE}) -o etime=)
        echo "  IP: $(ifconfig | awk '/-->/{print $2}')"
        echo "  $(ifconfig | awk -F': ' '/^utun/{print $1}'): ${runningtime}"

    else
        [ -f ${PIDFILE} ] && rm -f ${PIDFILE}
        echo "Openconnect is stopped."
        exit 3
    fi
}

case "$1" in
    start)
start
;;
stop)
stop
;;
status)
status
;;
restart)
stop && start
;;
*)
echo "Usage: ${0##*/} (start|stop|status|restart)" && exit 0
;;
esac