#!/bin/sh
#
# cron.qmail
# jms1 2001-05-08
#
# rebuilds control files and restarts qmail as needed
#
# 2006-01-13 jms1 - added better comments, simplified the logic in the
#   validrcptto.cdb stuff a little.
#
# 2006-02-15 jms1 - changed copyright notice from "GPL v2 or later" to 
#   "GPL v2 only"
#
###############################################################################
#
# Copyright (C) 2003-2006 John Simpson.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License, version 2, as
# published by the Free Software Foundation.
#
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
# or visit http://www.gnu.org/licenses/gpl.txt
#
###############################################################################

PATH=/usr/local/bin:/bin:/usr/bin:/var/qmail/bin

###############################################################################
#
# check whether or not to rebuild individual files

cd /var/qmail/users
if [ -f assign ]
then
	if [ assign -nt cdb ]
	then
		echo running qmail-newu
		logger -t cron.qmail running qmail-newu
		/var/qmail/bin/qmail-newu
	fi
else
	if [ -f cdb ]
	then
		echo deleting cdb, assign does not exist
		logger -t cron.qmail deleting cdb, assign does not exist
		rm cdb
	fi
fi

cd /var/qmail/control
if [ -f morercpthosts ]
then
	if [ ! -f morercpthosts.cdb ] \
		|| [ morercpthosts -nt morercpthosts.cdb ]
	then
		echo running qmail-newmrh
		logger -t cron.qmail running qmail-newmrh
		/var/qmail/bin/qmail-newmrh
	fi
fi

###############################################################################
#
# keep validrcptto.cdb up to date
# only runs if validrcptto.cdb or validrcptto.txt exists

if [ -f validrcptto.cdb -o -f validrcptto.txt ]
then
	umask 022

	if [ ! -f validrcptto.txt ] ; then touch validrcptto.txt ; fi

	mkvalidrcptto > validrcptto.new

# if you don't want to see what changed
#	if ! diff validrcptto.txt validrcptto.new > /dev/null 2>&1
#
# i prefer to see the changes myself
	if ! diff validrcptto.txt validrcptto.new
	then
		echo Building new validrcptto.cdb
		logger -t cron.qmail building new validrcptto.cdb
		cdbmake-12 validrcptto.cdb validrcptto.tmp < validrcptto.new
		chmod 644 validrcptto.cdb validrcptto.new

		# if you are sending the data to other machines,
		# add the appropriate commands here. the file
		# "validrcptto.new" contains the now-current list
		# of email addresses.
	fi

	mv -f validrcptto.new validrcptto.txt
fi

###############################################################################
#
# certain files, if changed, mean that we need to send a HUP signal to
# qmail-send so it restarts

RESTART=no

if [ -f virtualdomains ]
then
	if [ ! -f virtualdomains.last ] \
		|| [ virtualdomains -nt virtualdomains.last ]
	then
		echo virtualdomains has changed
		logger -t cron.qmail virtualdomains has changed
		touch virtualdomains.last
		RESTART=yes
	fi
fi

if [ -f locals ]
then
	if [ ! -f locals.last ] \
		|| [ locals -nt locals.last ]
	then
		echo locals has changed
		logger -t cron.qmail locals has changed
		touch locals.last
		RESTART=yes
	fi
fi

if [ "$RESTART" == "yes" ]
then
	echo Restarting qmail-send
	killall -HUP qmail-send
fi