admin@arcturus:/jffs/scripts# cat openvpn-time.sh
#!/bin/sh
USER=temporary-user
PASS=temporary-password
SERVER=vpnserver1

ACTION=$1;

if [ "$ACTION" != "enable" -a "$ACTION" != "disable" ]; then
    echo "Usage: $0 enable|disable"
    exit
fi

if [ "$ACTION" = "enable" ]; then
    #create new user and reload openvpn
    echo "Enabling $USER access"

    current=`/usr/sbin/nvram get vpn_serverx_clientlist`;
    echo "Existing users: $current"

    #see if we need to add the user
    exists=`echo "$current" | grep "<$USER>$PASS" | wc -l`
    if [ "$exists" -eq "0" ]; then

        current="$current<$USER>$PASS"
        echo "New users: $current"
        /usr/sbin/nvram set "vpn_serverx_clientlist=$current"

        /usr/sbin/nvram commit

            #reload openvpn
            echo "Restarting openvpn"
            /sbin/service stop_$SERVER
            /sbin/service start_$SERVER


    else
        echo "User already configured. Nothing done."
    fi


fi

if [ "$ACTION" = "disable" ]; then
    #delete user and reload openvpn
    echo "Disabling $USER access"
    current=`/usr/sbin/nvram get vpn_serverx_clientlist`;
    echo "Existing users: $current"
    current=`echo "$current" | sed -r "s/<$USER>[^\<]+//"`;
    echo "Remaining users: $current"
    /usr/sbin/nvram set "vpn_serverx_clientlist=$current"

    /usr/sbin/nvram commit

    #reload openvpn
    echo "Restarting openvpn"
    /sbin/service stop_$SERVER
    /sbin/service start_$SERVER

    #close existing openvpn connection
    #not needed?
fi