#!/bin/bash

#/**************************************************************************/
#/*                                                                        */
#/* Copyright (c) 2001, 2011 NoMachine, http://www.nomachine.com/.         */
#/* Copyright (c) 2015-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/
#/*                                                                        */
#/* NXSCRIPTS, NX protocol compression and NX extensions to this software  */
#/* are copyright of NoMachine. Redistribution and use of the present      */
#/* software is allowed according to terms specified in the file LICENSE   */
#/* which comes in the source distribution.                                */
#/*                                                                        */
#/* Check http://www.nomachine.com/licensing.html for applicability.       */
#/*                                                                        */
#/* NX and NoMachine are trademarks of Medialogic S.p.A.                   */
#/*                                                                        */
#/* All rights reserved.                                                   */
#/*                                                                        */
#/**************************************************************************/

#
# Uncomment this to enable echo.
#
#set -x
#

ulimit -c unlimited

NXPROXYBIN=nxproxy
NXAGENTBIN=nxagent

###
### Adapt to your needs: NXAGENT_HOST, NXPROXY_HOST
###
### This script launches nxagent and has to be executed on the NXAGENT_HOST.
### On the NXPROXY_HOST you will have to execute nxproxy by copy+pasting
### some command lines...
###
### (Instructions for copy+pasting are given when this script has been launched).
###
NXAGENT_HOST=127.0.0.1 # (e.g. 192.168.1.1, this scripts is launched on the NXAGENT_HOST machine)
NXPROXY_HOST=127.0.0.1 # (e.g. 192.168.1.2, you want to connect nxproxy -> nxagent from the NXPROXY_HOST machine)

NX_PORT=9

NX_SYSTEM=${HOME}/.nx

NX_ROOT=${HOME}/.nx

#
# This should be randlomly generated.
#
#NX_COOKIE=`xauth list |grep "${HOSTNAME}/unix:\<${NX_PORT}\>" | grep MIT | cut -f 5 -d ' '`
NX_COOKIE=123efa980d2cba234ef6f73deac810ff

#
# Create the directories for the NX session.
#

rm -rf ${NX_ROOT}/C-${NX_PORT} || exit
mkdir -p ${NX_ROOT}/C-${NX_PORT} || exit

rm -rf ${HOME}/.nx/S-${NX_PORT} || exit
mkdir -p ${HOME}/.nx/S-${NX_PORT} || exit

#
# Set the path to libraries and NX executables.
#

LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:${HOME}/NX/nxcomp:${HOME}/NX/nxcompext:${HOME}/NX/nx-X11/exports/lib"
export LD_LIBRARY_PATH

PATH="${PATH}:${HOME}/NX/nxclient/nxclient:${HOME}/NX/nx-X11/programs/Xserver/"
export PATH

#
# Create the fake cookie for this display.
#

echo -ne "Creating the X authorization cookie.\n"

xauth add ${NXPROXY_HOST}/unix:${NX_PORT} MIT-MAGIC-COOKIE-1 ${NX_COOKIE}
xauth add ${NXPROXY_HOST}:${NX_PORT} MIT-MAGIC-COOKIE-1 ${NX_COOKIE}

#
# Options are written in a file 'options' in the session
# directory. The agent will use the DISPLAY settings, so
# we pass in the DISPLAY the name of the options file.
#
# cache=8M,images=32M,link=modem,type=unix-kde,cleanup=0,
# accept=62.98.198.1,cookie=$NX_COOKIE,
# id=giulietta.nomachine.com-1098-6A4649FD0FCA57FAC275AF3F1C45B10F,
# media=1:1098
#

NX_HOST=nx/nx,cache=8192k,link=modem,menu=1,keybd=1,samba=0,cups=0,limit=0,\
accept=$NXPROXY_HOST,cookie=$NX_COOKIE,errors=${NX_ROOT}/C-${NX_PORT}/session

echo "${NX_HOST}:${NX_PORT}" >${NX_ROOT}/C-${NX_PORT}/options

#
# Run the agent. if you don't have a font server running,
# remove the argument "-fp unix/:7100"
#

NX_AGENT=:${NX_PORT}

echo -ne "Running the X client side NX agent.\n"

SAVED_DISPLAY=$DISPLAY

DISPLAY=nx/nx,options=${NX_ROOT}/C-${NX_PORT}/options:${NX_PORT} 
export DISPLAY

#valgrind -v --num-callers=8 --error-limit=no --trace-children=no \
#valgrind --num-callers=8 --tool=memcheck --leak-check=yes --show-reachable=yes --track-fds=yes \
#ldd ${NXAGENTBIN}
${NXAGENTBIN} -name 'NX' -geometry 800x600+100+100 "$@" \
${NX_AGENT} 2>>${NX_ROOT}/C-${NX_PORT}/session &

#
# The X server side proxy will forward the connection
# to the original DISPLAY.
#

DISPLAY=$SAVED_DISPLAY
export DISPLAY

#
# These are the nxproxy options used to run a typical session.
#
# cookie=$NX_COOKIE,root=/home/pinzari/.nx,media=32824,
# session=kde_on_giulietta,id=giulietta.nomachine.com-1098-6A4649FD0FCA57FAC275AF3F1C45B10F,
# connect=giulietta.nomachine.com:1098
#

echo
echo Now... COPY+PASTE the below lines to your local system
echo 
echo "--------------8<---------"

#NX_HOST=nx/nx,keybd=1,samba=1,cups=1,connect=$NXAGENT_HOST,cookie=$NX_COOKIE,errors=${NX_ROOT}/S-${NX_PORT}/session
NX_HOST=nx/nx,keybd=1,samba=0,cups=0,connect=tcp:$NXAGENT_HOST:4009,cookie=$NX_COOKIE,errors=${NX_ROOT}/S-${NX_PORT}/session
echo "NX_HOST=$NX_HOST"

echo "echo \"${NX_HOST}:${NX_PORT}\" >${NX_ROOT}/S-${NX_PORT}/options"

echo "${NXPROXYBIN} -S nx/nx,options=${NX_ROOT}/S-${NX_PORT}/options:${NX_PORT} 2>>${HOME}/.nx/S-${NX_PORT}/session"
echo "-------------->8---------"
echo