#!/bin/sh
#
# Copyright © 2001-2006, 2010, Jonas Smedegaard <dr@jones.dk>
# Description: Deluser extensions for Redpill <http://www.redpill.dk>
#
# 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 2, 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/>.
#
# TODO: Allow local overriding of using /etc/mailname
# TODO: Print list (not email) for each mailinglist, and all on one line
# TODO: Unmount eventual bind mounts
#

OLDUSERNAME=$1
OLDUID=$2
OLDGID=$3
OLDHOMEDIR=$4

fullname()	{ getent passwd $NEWUSERNAME | awk -F: '{print $5}' | awk -F, '{print $1}'; }
maildomain()	{ if [ -r /etc/mailname ]; then head -n 1 /etc/mailname; fi; }

listlists()	{ if [ -x /usr/sbin/list_lists ]; then /usr/sbin/list_lists -ab -V "$1"; fi; }
delfromlist()	{ /bin/echo "$1" | /usr/sbin/remove_members -f - "$2"; }

. /etc/adduser.conf

#. /etc/deluser.conf
# Workaround: default deluser.conf is not sh-compatible (like adduser.conf)
REMOVE_HOME=`grep REMOVE_HOME /etc/deluser.conf | awk -F= '{print $2}' | head -n 1 | sed 's/^ //g'`

# Ignore non-human accounts silently
[ "$OLDUID" -ge "$FIRST_UID" -a "$OLDUID" -le "$LAST_UID" ] || exit 0

[ -f /etc/local/users.conf ] && . /etc/local/users.conf

# Samba password
if [ -x /usr/bin/pdbedit ]; then
	/usr/bin/pdbedit -x -u "$OLDUSERNAME"
elif [ -e /etc/samba/smbpasswd -a -x /usr/bin/smbpasswd ]; then
	/usr/bin/smbpasswd -x $OLDUSERNAME || true
fi

#TODO: Netatalk password

# Mailinglists

maildomain="`maildomain`"
if [ -n "$maildomain" ]; then
	lists="`listlists "$maildomain"`"
	if [ -n "$lists" ]; then
		echo "Unsubscribing $OLDUSERNAME@$maildomain from mailinglists..."
	fi
	for list in $lists; do
		delfromlist "$OLDUSERNAME@$maildomain" "$list"
	done
fi

# Check for dummy shared files if enabled in /etc/local/users.conf
if [ -n "$DUMMYSHAREDDIR" ]; then
	if [ -d $DUMMYSHAREDDIR/$OLDUSERNAME -a -n "$OLDUSERNAME" ]; then
		echo -n "It seems this was a dummy user. Remove shared files (y/N)? "
		read remove_files
		case $remove_files in
		    y|Y)
			rm -rf $DUMMYSHAREDDIR/$OLDUSERNAME
			;;
		esac
	fi
fi

# Workaround: It seems deluser avoids symlinks when told to remove homedir
if [ "$REMOVE_HOME" = "1" -a -d $OLDHOMEDIR ]; then
	echo "Removing $OLDHOMEDIR..."
	rm -rf $OLDHOMEDIR
fi