#!/bin/bash

#	Decoding application/ms-tnef attachements in mail for sylpheed-claws
#	Author: Shawn Lamson 
#	contributions (like script enhancements etc.), comments, suggestions
#	etc... accepted at mailto:shawn.lamson@verizon.net

#	This script depends on you 
#	1)   having tnef installed
#	     http://sourceforge.net/projects/tnef/
#	     packages are available for all major linux distributions
#	2)   having x-terminal-emulator or xterm (may need to edit this script
#	     if typing $x-terminal-emulator at a command prompt in X doesn't
#	     give you a xterm console
#	3)   have bash although sh would probably work too; known issues would
#	     be the "echo -e" and the test [ -z "$VAR" ] wouldnt work with sh


#	Installation:  Read the README.claws section on user actions
#		       for details on how to set up action
#	1)   put this script somewhere in your executables path and make it
#	     executable. ie. mv tnef-claws /usr/local/bin 
#			     chmod +x /usr/local/bin/tnef-claws
#       2)   here is what my entry in README.claws would be
#	      Purpose:      decode ms-tnef attachments in mail
#	      Definition:   tnef-claws: x-terminal-emulator -e "tnef-claws" %p
#	      Details:      This opens an xterm window to use an interactive
#			    method to extract attachments from ms-tnef encoding
#	3)   So at least add the part after "Definition:" to your 
#	     ~/.sylpheed/actionsrc file
#	4)   In the message you have received click on the Attachments tab and
#	     highlight the application/ms-tnef line; then go to
#	     Tools/Actions/tnef-claws; the xterm should launch and voila! 



RAW_NAME=
ATTACH_NAME=
DEFAULT_DIR=~
ANSWER=


#	AFAIK there is always going to be a file coming in
#	but might as well test it 
if [ -z "$1" ]; then
     echo -e "No filename/attachment provided! press enter to exit\c"
     read
     exit 1
fi

RAW_NAME="$1"

#
#	get the name of attachment if any 

ATTACH_NAME="`tnef -t $RAW_NAME`"

#
#	if there is one - continue

if [ $? -ne 0 ] || [ -z "$ATTACH_NAME" ]; then
	echo -e "\007"
	echo -e "Nothing in the attachment to extract! press enter to exit\c"
	read
	exit 1
fi

echo -e "Do you want to extract $ATTACH_NAME ? (Y/n):\c"
read ANSWER

case ${ANSWER:-y} in
	Y|y|YES|Yes|yes)
		;;
	*)echo -e "\007"
	  echo -e "Exiting without action !  Press enter to quit\c"
	  read
	  exit 1;;
esac

#
#	get the directory to extract to
#

echo -e "Current dir to extract to is $DEFAULT_DIR; do you want \
to change it? (y/N):\c"
read ANSWER

case ${ANSWER:-n} in
	Y|y|YES|Yes|yes)
		echo -e "Enter the new directory name:\c"
		read NEW_DIR
		if [ ! -d "$NEW_DIR" ] || [ ! -w "$NEW_DIR" ]; then 
		   echo "Invalid dir !"
		   echo -e "press enter to quit\c"; read
		   exit 1
		fi
		DEFAULT_DIR="$NEW_DIR"
		;;
	*)
		;;	  
esac

echo -e "The file has been extracted to "$DEFAULT_DIR" as:"
#
#	do the actual extraction
#
tnef --number-backups -v -C "$DEFAULT_DIR" -f "$RAW_NAME"

#
#	get a confirmation on exit b/c sylpheed claws just quits it
#

echo -e "press enter to quit\c"
read 

exit 0