#!/bin/sh

# This is an amateur script to decrypt mixminion messages with
# PGP/inline encrypted bodies for Sylpheed-Claws.
# from Kai Raven <kairaven@arcor.de> / OpenPGP: D6E995A0.
# Maybe somebody with skills in scripting or graphical GUI design can
# make a better one and/or a nice client.
# License: GPL
#
# You need:
# Sylpheed-Claws
# http://claws.sylpheed.org/
#
# Mixminion
# http://www.mixminion.net/
#
# Xdialog
# http://xdialog.dyns.net/
#
# a temp dir with tmpfs like this one (from fstab) or simply use /tmp
# none                    /tmp/remail          tmpfs   defaults,size=1m       0 0
# Symlink:
# 1. mkdir /tmp/remailer/queue 
# 2. ln -s /tmp/remail/queue ~/.mixminion/queue
#
# Usage:
# 1. Save the script as "syl-mixminion-decodegpg" in your path
# 2. Make an action in Sylpheed-Claws: Configuration -> Actions:
#    Menu name: Mixminion/Mixminion-Decode-GPG
#    Command line: |syl-mixminion-decodegpg
# 3. Choose Tools -> Actions -> Mixminion ->Mixminion-Decode-GPG

MIXTMP="/tmp/remail"
SYLTMP="$MIXTMP/syltmp"

# create queue in tmpfs dir.
if [ ! -d $MIXTMP/queue ] ; then
    mkdir $MIXTMP/queue
fi

# first decode to remove the mixminion quotation
mixminion decode -i - > $SYLTMP

# decrypt the encrypted GnuPG body with your passphrase
PAS=`Xdialog	--stdout \
		--title "Mixminion - Decrypt GnuPG" --buttons-style text \
		--left --password --inputbox "Fill in your GnuPG Passphrase" 0 0`

ret=$?

case $ret in
	0)
		MSG=`echo $PAS | gpg --no-tty --command-fd 0 --passphrase-fd 0 --decrypt $SYLTMP`
		;;
	1)
    		shred -uz $SYLTMP        
    		exit 1
		;;
	255)
		echo "Box closed."
		;;
esac

shred -uz $SYLTMP
echo $MSG