#!/bin/bash -e
#
# Univention Home Mounter
#  unmount the home dirs
#
# Copyright 2004-2014 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/>.

test -f /var/lib/univention-home-mounter/mounts || exit 0

mps=`tempfile`
cat /var/lib/univention-home-mounter/mounts > $mps
cat $mps | while read mp seconds; do
	if [ $((seconds+300)) -lt `date +%s` ]
		then
		failed=0
		result=`umount "$mp" 2>&1` || failed=1
		if [ "$failed" = 0 ] || echo $result | grep -q 'not mounted'; then
			dotlockfile -l /var/lib/univention-home-mounter/mounts.lock
			cat /var/lib/univention-home-mounter/mounts | grep -v "^$mp$" > /var/lib/univention-home-mounter/mounts.new || true
			mv /var/lib/univention-home-mounter/mounts.new /var/lib/univention-home-mounter/mounts
			dotlockfile -u /var/lib/univention-home-mounter/mounts.lock
		fi
	fi
done
rm -f "$mps"

