portforward

#! /usr/local/bin/bash
#
# Script based on Eric Rudd's script at https://forums.freenas.org/index.php?threads/guide-setting-up-transmission-with-openvpn-and-pia.24566/page-2#post-174778
#
# Make sure you have a file named piacreds in the same directory as the script
# 1st line of the file is pia username, 2nd password and third client id
#
# to generate a new client id run
#   head -n 100 /dev/urandom | md5sum | tr -d " -"
# in any terminal
#

SCRIPTDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

PROGRAM=`basename $0`
USER=`head -n 1 $SCRIPTDIR/piacreds`
PASSWORD=`head -n 2 $SCRIPTDIR/piacreds | tail -1`
CLIENT_ID=`head -n 3 $SCRIPTDIR/piacreds | tail -1`

local_ip=`ifconfig tun0 | grep "inet " | cut -d\  -f2|tee /tmp/vpn_ip`
json=`wget --no-check-certificate -q --post-data="user=$USER&pass=$PASSWORD&client_id=$CLIENT_ID&local_ip=$local_ip" -O - "https://www.privateinternetaccess.com/vpninfo/port_forward_assignment"  | head -1`
PORTNUM=`echo $json | grep -oE "[0-9]+"`
echo $PORTNUM
transmission-remote -p $PORTNUM

exit 0