#!/bin/bash
# script for converting normal TC-Containers into "Extended Truecrypt Volumes" in Ubuntu Privacy Remix
# www.privacy-cd.org

TEXTDOMAIN=TCNautilus
test -n "$NAUTILUS_SCRIPT_SELECTED_FILE_PATHS" || exit 0
# where is truecrypt?
TC=/usr/local/bin/truecrypt

FILECOUNT=`echo -en "$NAUTILUS_SCRIPT_SELECTED_FILE_PATHS" | wc -l`
if [ $FILECOUNT -gt 1 ]; then
        zenity --error --text=$"This script does not work with multiple files selected. Please try again."
        exit 1
fi

# the TC-Volume
ENCRYPTEDFILE=`echo -e "$NAUTILUS_SCRIPT_SELECTED_FILE_PATHS" | head -n 1 | sed "s/.volume/ /"`

# the mount point
MOUNTPOINT=/media/`basename "$ENCRYPTEDFILE" | cut -f1 -d.`

# ------------------------------------------------------------------------

# return value of truecrypt -t -l <file> is true if it is mounted, false if not
if ( $TC -t -l "$ENCRYPTEDFILE" ); then
    zenity --error --text=$"Truecrypt volume $ENCRYPTEDFILE is already mounted - please close it first."
else
# warning
  if zenity  --question --title $"Attention - loss of data!"  --text $"The volume will be formatted by this command. Thereby you will lose all data within this volume. Do you want to continue?"
  then
  # open container and format
  $TC --filesystem=none -k="" --protect-hidden=no "$ENCRYPTEDFILE" || exit 1
  
  if ( $TC -t -l "$ENCRYPTEDFILE" ); then
DMNAME=`$TC -t -l -v "$ENCRYPTEDFILE" | grep "^Virtual Device: " | sed -e "s/Virtual Device: //"`
DMNAME2=`$TC -t -l -v "$ENCRYPTEDFILE" | grep "^Volume: " | sed -e "s/Volume: //"`
    sudo mkfs.ext3 -m 0 $DMNAME && $TC -t -d "$DMNAME2" && zenity --info --title $"Formatting successful" --text=$"The truecrypt volume $DMNAME2 was formatted with the ext3 filesystem and closed. It can now be opened by the context menu entry \"extended Volume -> öffnen/open\"."
  else
    zenity --error --text=$"ext3-formatting of the volume $ENCRYPTEDFILE failed! Wrong passphrase or this is not a truecrypt volume."
fi
fi
fi