#!/bin/bash
# Licence: GNU
# Author: michal@roxor.pl

trueCryptDeb="truecrypt_4.3a-0_i386.deb"

trueCryptVolume="michal.tcr"
trueCryptMountPoint="TrueCrypt/Volume"

mediaDir=$(echo $0|sed 's/autorun//')

txtProgName="Bezpieczny Dysk TrueCrypt"
txtNoTrueCrypt="TrueCrypt nie jest zainstalowany. Zignorować instalację na obcym sprzęcie?"
txtEnterPassword="Wprowadź hasło do wolumenu TrueCrypt"

passWord=""

askPassword () {
	case "$1" in
		"kde")
			passWord=`kdialog --title "${txtProgName}" --password "${txtEnterPassword}"`
		;;
		"gnome")
			passWord=`zenity --entry --text="${txtEnterPassword}" --hide-text`
		;;
		"bash")
			echo -n "${txtProgName}";read passWord
		;;
	esac
}

infoNoTrueCrypt () {
	case "$1" in
		"kde")
            installTC=`kdialog --title "${txtProgName}" --warningyesno "${txtNoTrueCrypt}";echo $?`
		;;
		"gnome")
			installTC=`zenity --question --text="${txtNoTrueCrypt}";echo $?`
		;;
		"bash")
            until [ "${installTC}" == "1" ] || [ "${installTC}" == 0 ]
            do
			    echo -n "${txtNoTrueCrypt} [0 - tak, 1 - nie]";read installTC 
            done
		;;
	esac
}


installTrueCrypt () {
	case "$1" in
		"kde")
		    gdebi-kde ${mediaDir}TrueCrypt/${trueCryptDeb}
		;;
		"gnome")
		    gdebi-gtk ${mediaDir}TrueCrypt/${trueCryptDeb}
		;;
		"bash")
		    sudo dpkg -i ${mediaDir}TrueCrypt/${trueCryptDeb}
		;;
	esac
}

if [ "`pidof kwin`" != "" ]; then 			# KDE
	wm="kde"
elif [ "`pidof gnome-settings-daemon`" != "" ]; then	# Gnome
	wm="gnome"
else							# Shell
	wm="shell"
fi


if [ `which truecrypt 2>&1 >/dev/null;echo $?` -eq 1 ]; then
        infoNoTrueCrypt $wm
        if [ "${installTC}" == "1" ]; then
            installTrueCrypt $wm
        else
            exit
        fi
        if [ `which truecrypt 2>&1 >/dev/null;echo $?` -eq 1 ]; then
            exit
        fi
fi

if [ "`mount|grep "${mediaDir}${trueCryptMountPoint}"`" != "" ]; then
    truecrypt -d ${mediaDir}TrueCrypt/Volume
else
    askPassword $wm
    if [ "${passWord}" != "" ]; then
        truecrypt ${mediaDir}${trueCryptVolume} ${mediaDir}${trueCryptMountPoint} --password=${passWord}
    fi
fi