#! /bin/bash

set -e
set +x
export TEXTDOMAIN="lliurex-cssh"
PATH="/usr/sbin:/usr/bin:/sbin:/bin"

MSG_LOGIN_USER=$(gettext "User's login to connect the clients")
MSG_USER=$(gettext "User:")
MSG_ERROR_NAME_USER=$(gettext "Login field empty")
MSG_CHECK_MACHINES=$(gettext "Checking online clients")
MSG_WAITING=$(gettext "Wait please...")
MSG_NO_CLIENTS_ONLINE=$(gettext "No clients online")
MSG_CLIENTS_ONLINE_PART1=$(gettext "We have ")
MSG_CLIENTS_ONLINE_PART2=$(gettext " computers online ")
MSG_CONTINUE=$(gettext "Do you want to continue?")
#LANG="es_ES.UTF-8"
tcos_port="22"
num_clientes=1
clients_file="clientes"
eval $(n4d-vars getvalues INTERNAL_NETWORK)
eval $(n4d-vars getvalues INTERNAL_MASK)
eval $(n4d-vars getvalues SRV_IP)

#Ask for a user to connect with
usuario=$(zenity --width="500" --entry --title="$MSG_LOGIN_USER" --text="$MSG_USER")
#If the user is empty we finish
	if [ -z $usuario ]
	then
		echo "$MSG_ERROR_NAME_USER"
		exit 1
	fi

#Obtain registrered active clients
if [ true ]; then
	echo "1"
	nmap -sS -p$tcos_port -oG $clients_file $INTERNAL_NETWORK"/"$INTERNAL_MASK
	cat $clients_file| grep open|cut -d " " -f2>clients.tmp
	cat clients.tmp | sed -e 's/^/'$usuario'@/g'>$clients_file
	rm clients.tmp
	echo "2"
	#remove the server IP
	cat $clients_file| grep -v $(echo $SRV_IP | cut -d "=" -f2|cut -d "'" -f2)>$clients_file
fi |zenity --progress --pulsate --width="300" --auto-close --title="$MSG_CHECK_MACHINES" --text="$MSG_WAITING" --percentage=0 

#Check if there are any client connected
if [ ! -f $clients_file ]
then
	echo "$MSG_NO_CLIENTS_ONLINE"
else
	#Show a list with the connected clients 
	zenity --question --text="$MSG_CLIENTS_ONLINE_PART1"$(wc -l < $clients_file)"$MSG_CLIENTS_ONLINE_PART2"$(echo $network|cut -d "/" -f1)": \n"$(cat $clients_file|cut -d "." -f4|tr -s "\n" ",")" \n$MSG_CONTINUE"
	if [ $? -eq 0 ]
	then
		echo "adeu"
		#Connect to all clients in the list
		cssh $(cat $clients_file) #2> /dev/null
		#rm $clients_file
	else
		exit 1
	fi
fi