freedombone/src/freedombone-utils-gpg

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#!/bin/bash
#
# .---. . .
# | | |
# |--- .--. .-. .-. .-.| .-. .--.--. |.-. .-. .--. .-.
# | | (.-' (.-' ( | ( )| | | | )( )| | (.-'
# ' ' --' --' -' - -' ' ' -' -' -' ' - --'
#
# Freedom in the Cloud
#
# gpg functions
#
# License
# =======
#
# Copyright (C) 2016 Bob Mottram <bob@freedombone.net>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
function gpg_agent_setup {
gpg_username=$1
if [[ $gpg_username == 'root' ]]; then
if ! grep -q 'GPG_TTY' /root/.bashrc; then
echo '' >> /root/.bashrc
echo 'GPG_TTY=$(tty)' >> /root/.bashrc
echo 'export GPG_TTY' >> /root/.bashrc
fi
if ! grep -q 'use-agent' /root/.gnupg/gpg.conf; then
echo 'use-agent' >> /root/.gnupg/gpg.conf
fi
if ! grep -q 'pinentry-mode loopback' /root/.gnupg/gpg.conf; then
echo 'pinentry-mode loopback' >> /root/.gnupg/gpg.conf
fi
if [ ! -f /root/.gnupg/gpg-agent.conf ]; then
touch /root/.gnupg/gpg-agent.conf
fi
if ! grep -q 'allow-loopback-pinentry' /root/.gnupg/gpg-agent.conf; then
echo 'allow-loopback-pinentry' >> /root/.gnupg/gpg-agent.conf
fi
echo RELOADAGENT | gpg-connect-agent
else
if ! grep -q 'GPG_TTY' /home/$gpg_username/.bashrc; then
echo '' >> /home/$gpg_username/.bashrc
echo 'GPG_TTY=$(tty)' >> /home/$gpg_username/.bashrc
echo 'export GPG_TTY' >> /home/$gpg_username/.bashrc
chown $gpg_username:$gpg_username /home/$gpg_username/.bashrc
fi
if ! grep -q 'use-agent' /home/$gpg_username/.gnupg/gpg.conf; then
echo 'use-agent' >> /home/$gpg_username/.gnupg/gpg.conf
fi
if ! grep -q 'pinentry-mode loopback' /home/$gpg_username/.gnupg/gpg.conf; then
echo 'pinentry-mode loopback' >> /home/$gpg_username/.gnupg/gpg.conf
fi
if [ ! -f /home/$gpg_username/.gnupg/gpg-agent.conf ]; then
touch /home/$gpg_username/.gnupg/gpg-agent.conf
fi
if ! grep -q 'allow-loopback-pinentry' /home/$gpg_username/.gnupg/gpg-agent.conf; then
echo 'allow-loopback-pinentry' >> /home/$gpg_username/.gnupg/gpg-agent.conf
fi
su -c "echo RELOADAGENT | gpg-connect-agent" - $gpg_username
fi
}
function gpg_pubkey_from_email {
key_owner_username=$1
key_email_address=$2
key_id=
if [[ $key_owner_username != "root" ]]; then
key_id=$(su -c "gpg --list-keys $key_email_address" - $key_owner_username | sed -n '2p' | sed 's/^[ \t]*//')
else
key_id=$(gpg --list-keys $key_email_address | sed -n '2p' | sed 's/^[ \t]*//')
fi
echo $key_id
}
function enable_email_encryption_at_rest {
for d in /home/*/ ; do
USERNAME=$(echo "$d" | awk -F '/' '{print $3}')
if [[ $(is_valid_user "$USERNAME") == "1" ]]; then
if grep '#| /usr/bin/gpgit.pl' /home/$USERNAME/.procmailrc; then
sed -i 's@#| /usr/bin/gpgit.pl@| /usr/bin/gpgit.pl@g' /home/$USERNAME/.procmailrc
sed -i 's|#:0 f|:0 f|g' /home/$USERNAME/.procmailrc
fi
fi
done
if grep '#| /usr/bin/gpgit.pl' /etc/skel/.procmailrc; then
sed -i 's@#| /usr/bin/gpgit.pl@| /usr/bin/gpgit.pl@g' /etc/skel/.procmailrc
sed -i 's|#:0 f|:0 f|g' /etc/skel/.procmailrc
fi
}
function disable_email_encryption_at_rest {
for d in /home/*/ ; do
USERNAME=$(echo "$d" | awk -F '/' '{print $3}')
if [[ $(is_valid_user "$USERNAME") == "1" ]]; then
if ! grep '#| /usr/bin/gpgit.pl' /home/$USERNAME/.procmailrc; then
sed -i 's@| /usr/bin/gpgit.pl@#| /usr/bin/gpgit.pl@g' /home/$USERNAME/.procmailrc
sed -i 's|:0 f|#:0 f|g' /home/$USERNAME/.procmailrc
fi
fi
done
if ! grep '#| /usr/bin/gpgit.pl' /etc/skel/.procmailrc; then
sed -i 's@| /usr/bin/gpgit.pl@#| /usr/bin/gpgit.pl@g' /etc/skel/.procmailrc
sed -i 's|:0 f|#:0 f|g' /etc/skel/.procmailrc
fi
}
# NOTE: deliberately no exit 0