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#!/bin/zsh
# gpg-wrapper for users who put their .gnupg on a LUKS (encrypted) device
# Copyright (C) 2009 Ryan Kavanagh <ryanakca@kubuntu.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# ====== Configure devices here =======
# Encrypted decive containing .gnupg/
device='/dev/epsilon_crypted/gpg'
# Will become /dev/mapper/decrypted_name
decrypted_name='gpg-decrypted'
# Where to mount decrypted device
mount_point='/media/encrypted'
# Path to your GPG
gpg_path='/usr/bin/gpg'
# In how many minutes should we close and unmount your encrypted device?
unmount_time=15
# ======= End user config, don't touch below =======
# ======= unless you know what you're doing. =======
if [ ! -b '/dev/mapper/'$decrypted_name ]
then
count=0
mnt=''
# If the user doesn't know wether or not they want to mount it, give up on
# them.
while [[ $mnt != 'Y' && $count -le 2 ]]
do
echo 'Would you like to mount the encrypted GPG dir? [Y/n]'
read mnt
case '$mnt' in
'' | 'Y' | 'y' )
mnt='Y'
;;
'N' | 'n' )
break;
;;
* )
count=`expr $count + 1`
;;
esac
done
if [[ $mnt == 'Y' ]]
then
sudo cryptsetup luksOpen $device $decrypted_name
sudo mount /dev/mapper/$decrypted_name $mount_point
# We'll do this here instead of elsewheres, since if the user has
# already / manually mounted the directory, they might not want us to
# unmount it on them.
echo "cp -f ${mount_point}/.gnupg/pubring.gpg /root/pr.gpg && cp -f ${mount_point}/.gnupg/trustdb.gpg /root/tdb.gpg && && umount ${mount_point} && cryptsetup luksClose ${decrypted_name} && \
cp /root/pr.gpg ${mount_point}/.gnupg/pubring.gpg && cp /root/tdb.gpg ${mount_point}/.gnupg/trustdb.gpg && chown -R ryan:ryan ${mount_point}" | \
sudo at now + $unmount_time min
else
exit 0
fi
fi
exit 0
|
