#!/bin/bash
# Fedora/GNOME3 iodine tunneler
# By Ricky Burgin
# http://ricky.burg.in/
#
# Enable and disable iodine + SSH-based SOCKS tunnel
# on Fedora with GNOME3 (and probably other GNOME3-
# based systems)
#
# Requires that you have SSH-key configured shell
# on your remote server that runs iodine
#
# Run `dnf install iodine-client` to install
# iodine on Fedora
#
# This will tunnel any app on your system that
# is designed to detect system proxy settings
# and supports proxying via SOCKS. Tested with
# Google Chrome.
#
# Usage: Just run the script
#
####################################
#           BEGIN CONFIG
# !!! YOU MUST EDIT THESE VALUES !!!
####################################
servertunip="10.0.0.1" # The IP which you configure for iodined on your tunnel server
remoteuser="user" # The user to log in as on your server that runs iodine
socksport="1080" # The SOCKS port for which the SSH tunnel and your system should be configured for
tuntopdomain="your.domain.com" # The Top domain configured for your tunnel
tunpassword="somepassword" # The same password that was configured on iodined
nonemanualauto="none" # Which proxy configuration to return GNOME to once finished with the tunnel. Choices are "none", "manual" and "auto".
####################################
#           END OF CONFIG
####################################
iodinepid=`pgrep -f "$tuntopdomain"`
sshpid=`pgrep -f "ssh $remoteuser@$servertunip -D $socksport -N"`

echo "tunip: $servertunip user: $remoteuser port: $socksport domain: $tuntopdomain pass: $tunpassword proxy: $nonemanualauto iodine pid: $iodinepid ssh pid: $sshpid"

if [ -z "$iodinepid" ] && [ -z "$sshpid" ]; then
	echo "Starting iodine tunnel..."
	sudo iodine -P $tunpassword $tuntopdomain
	echo "SSHing to iodine server and establishing SSH/SOCKS tunnel..."
	ssh $remoteuser@$servertunip -D $socksport -N 2>&1 &
	echo "Configuring GNOME's proxy settings..."
	gsettings set org.gnome.system.proxy mode "manual"
	gsettings set org.gnome.system.proxy.socks host "127.0.0.1"
	gsettings set org.gnome.system.proxy.socks port "$socksport"
	echo "Tunnel established!"
else
	echo "Existing iodine tunnel detected, killing process and removing GNOME proxy settings..."
	sudo kill $iodinepid $sshpid
	gsettings set org.gnome.system.proxy.socks host ""
	gsettings set org.gnome.system.proxy.socks port 0
	gsettings set org.gnome.system.proxy mode "$nonemanualauto"
	echo "Done!"
fi