#! /bin/sh
#
# Copyright 2006-2014 Univention GmbH
#
# http://www.univention.de/
#
# All rights reserved.
#
# The source code of this program is made available
# under the terms of the GNU Affero General Public License version 3
# (GNU AGPL V3) as published by the Free Software Foundation.
#
# Binary versions of this program provided by Univention to you as
# well as other copyrighted, protected or trademarked materials like
# Logos, graphics, fonts, specific documentations and configurations,
# cryptographic keys etc. are subject to a license agreement between
# you and Univention and not subject to the GNU AGPL V3.
#
# In the case you use this program under the terms of the GNU AGPL V3,
# the program is provided 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 with the Debian GNU/Linux or Univention distribution in file
# /usr/share/common-licenses/AGPL-3; if not, see
# <http://www.gnu.org/licenses/>.

set -e

# nothing to be done for root
if [ "$USER" = "root" ]; then 
    exit 0
fi

if [ -z "$PASSWD" ]; then
	exit 0
fi

# ignore computer accounts
if [ "$USER" != "${USER%\$}" ]; then
	exit 0
fi

PASSWDDIR="$HOME/.univention-passwd-store"
PASSWDFILE="$PASSWDDIR/session_passwd"

# prepare dir
test -d "$PASSWDDIR" || mkdir "$PASSWDDIR"
chown "$USER":nogroup "$PASSWDDIR"
chmod 0100 "$PASSWDDIR"

if [ -e "$PASSWDFILE"]; then
	rm -f "$PASSWDFILE"
fi

# prepare file
touch "$PASSWDFILE"
chown "$USER":nogroup "$PASSWDFILE"
chmod 0600 "$PASSWDFILE"

# store passwd
echo -n "$PASSWD" > "$PASSWDFILE"

# restrict access
chmod 0400 "$PASSWDFILE"

exit 0

