#!/bin/bash
#
# mailscanner   This shell script takes care of starting and stopping
#               MailScanner, and its associated copies of sendmail.
#
# chkconfig: 2345 80 30
# description: MailScanner is an open-source E-Mail Gateway Virus Scanner.
# processname: MailScanner
# config: /etc/MailScanner/MailScanner.conf
# pidfile: /var/run/MailScanner.pid

# Source function library.
. /etc/rc.d/init.d/functions

# Source networking configuration.
. /etc/sysconfig/network

#
# If you are using sendmail, Exim or Postfix, please try to avoid editing
# thie file. Edit /etc/sysconfig/MailScanner instead.
#
MTA=sendmail
QUEUETIME=15m
WORKDIR=/var/spool/MailScanner/incoming
INQDIR=/var/spool/mqueue.in
INPID=/var/run/sendmail.in.pid
OUTPID=/var/run/sendmail.out.pid
SENDMAIL=/usr/sbin/sendmail
POSTFIX=/usr/sbin/postfix
POSTFIXINCF=/etc/postfix.in
POSTFIXOUTCF=/etc/postfix
EXIM=/usr/sbin/exim
EXIMINCF=/etc/exim.conf
EXIMSENDCF=/etc/exim_send.conf

# Source mailscanner configureation.
if [ -f /etc/sysconfig/MailScanner ] ; then
        . /etc/sysconfig/MailScanner
fi
export MTA
export QUEUETIME
export WORKDIR
export INQDIR
export INPID
export OUTPID
export SENDMAIL
export POSTFIX
export POSTFIXINCF
export POSTFIXOUTCF
export EXIM
export EXIMINCF
export EXIMSENDCF

# Check that networking is up.
[ ${NETWORKING} = "no" ] && exit 0

[ -f /usr/sbin/check_MailScanner ] || exit 0
[ -f $SENDMAIL ] || exit 0

# Start both the sendmail processes
StartInSendmail() {
      if [ $MTA = 'postfix' ]; then
        if test -x $POSTFIX -a -f $POSTFIXINCF/main.cf ; then
          $POSTFIX -c $POSTFIXINCF start 2> /dev/null
          success
          echo
        else
          failure
          echo
          echo "Could not find Postfix installation, see /etc/sysconfig/MailScanner"
        fi
      elif [ $MTA = 'exim' ]; then
        if test -x $EXIM ; then
          $EXIM -C $EXIMINCF -bd 2> /dev/null
          success
          echo
        else
          failure
          echo
          echo "Could not find Exim installation, see /etc/sysconfig/MailScanner"
        fi
      elif [ $MTA = 'sendmail' ]; then
        /usr/bin/newaliases > /dev/null 2>&1
        if test -x /usr/bin/make -a -f /etc/mail/Makefile ; then
            make -C /etc/mail -s
        else
            for i in virtusertable access domaintable mailertable ; do
                if [ -f /etc/mail/$i ] ; then
                    makemap hash /etc/mail/$i < /etc/mail/$i
                fi
            done
        fi
        $SENDMAIL -bd -OPrivacyOptions=noetrn \
                      -ODeliveryMode=queueonly \
                      -OQueueDirectory=$INQDIR \
                      -OPidFile=$INPID
        touch /var/run/sm-client.pid
        chown smmsp:smmsp /var/run/sm-client.pid 2>/dev/null
        $SENDMAIL -L sm-msp-queue -Ac -q15m 2>/dev/null
        success
        echo
      else
        failure
        echo
        echo "Invalid MTA in /etc/sysconfig/MailScanner"
      fi
}
StartOutSendmail() {
      if [ $MTA = 'postfix' ]; then
        if test -x $POSTFIX -a -f $POSTFIXOUTCF/main.cf ; then
          $POSTFIX -c $POSTFIXOUTCF start 2> /dev/null
          success
          echo
        else
          failure
          echo
          echo "Could not find Postfix installation, see /etc/sysconfig/MailScanner"
        fi
      elif [ $MTA = 'exim' ]; then
        if test -x $EXIM ; then
          $EXIM -C $EXIMSENDCF -q15m 2> /dev/null
          success
          echo
        else
          failure
          echo
          echo "Could not find Exim installation, see /etc/sysconfig/MailScanner"
        fi
      elif [ $MTA = 'sendmail' ]; then
        $SENDMAIL $([ -n "$QUEUETIME" ] && echo -q$QUEUETIME) \
                  -OPidFile=$OUTPID
        success
        echo
      else
        failure
        echo
        echo "Invalid MTA in /etc/sysconfig/MailScanner"
      fi
}

RETVAL=0

# See how we were called.
case "$1" in
  startin)
	# Start just incoming sendmail
	echo "Starting incoming $MTA only:"
	echo -n '         incoming' $MTA': '
	StartInSendmail
	;;
  startout)
	# Start just outgoing sendmail
	echo "Starting outgoing $MTA only:"
	echo -n '         outgoing' $MTA': '
	StartOutSendmail
	;;
  start)
	# Start daemons.
	echo 'Starting MailScanner daemons:'
        echo -n '         incoming' $MTA': '
	StartInSendmail
        echo -n '         outgoing' $MTA': '
	StartOutSendmail
	echo -n '         MailScanner:       '
	/usr/sbin/check_MailScanner >/dev/null
	RETVAL=$?
	[ $RETVAL -eq 0 ] && touch /var/lock/subsys/MailScanner
	success
	echo
	;;
  stop)
	# Stop daemons.
	echo    'Shutting down MailScanner daemons:'
	echo -n '         MailScanner:       '
	killproc MailScanner -15
	echo
	echo -n '         incoming' $MTA': '
        if [ $MTA = "postfix" ]; then
          $POSTFIX -c /etc/postfix.in stop 2>/dev/null
	  success
        elif [ $MTA = "exim" ]; then
          killproc exim 2>/dev/null
	  success
        elif [ $MTA = "sendmail" ]; then
	  #killproc sendmail 2>/dev/null
	  kill `head -1 $INPID` 2>/dev/null
          kill `head -1 /var/run/sm-client.pid` 2>/dev/null
	  success
	else
          failure
          echo
          echo "Invalid MTA in /etc/sysconfig/MailScanner"
        fi
	echo
	echo -n '         outgoing' $MTA': '
        if [ $MTA = "postfix" ]; then
          $POSTFIX -c /etc/postfix stop 2>/dev/null
	  success
        elif [ $MTA = "exim" ]; then
          success
        elif [ $MTA = "sendmail" ]; then
	  #killproc /usr/sbin/sendmail 2>/dev/null
	  kill `head -1 $OUTPID` 2>/dev/null
	  success
        else
          failure
          echo
          echo "Invalid MTA in /etc/sysconfig/MailScanner"
        fi
	RETVAL=$?
	echo
	[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/MailScanner
	# Clear out all the old pid files
	rm -f /var/run/MailScanner.pid
	# Clear out the old incoming dirs
	cd $WORKDIR && ls | xargs /bin/rm -rf 2>/dev/null
	;;
  status)
        # Work out if all of MailScanner is running
	echo    'Checking MailScanner daemons:'
        echo -n '         MailScanner:       '
        pid=`pidofproc MailScanner`
        if [ -z "$pid" ] ; then failure; else success; fi
        echo
        if [ $MTA = "sendmail" ]; then
          # Now the incoming sendmail
          echo -n '         incoming sendmail: '
	  pid=`head -1 $INPID`
	  alive=`ps ax | awk '{ print $1 }' | grep '^'$pid'$'`
          #pid=`ps ax | egrep '\[sendmail\]|sendmai[l]: accepting connections'`
          if [ -z "$alive" ] ; then failure; else success; fi
          echo
          # Now the outgoing sendmail
          echo -n '         outgoing sendmail: '
	  pid=`head -1 $OUTPID`
	  alive=`ps ax | awk '{ print $1 }' | grep '^'$pid'$'`
          # More complex regexp to handle other RedHats
          #pid=`ps ax | egrep '\[sendmail\]|sendmai[l] -q[0-9]*[mhd]|sendmail: Queue runner' | grep -v grep`
          if [ -z "$alive" ] ; then failure; else success; fi
          echo
        fi
        ;;
  reload)
	echo    'Reloading MailScanner workers:'
        echo -n '         MailScanner:       '
	pid=`pidofproc MailScanner`
	if [ -z "$pid" ] ; then
	  failure
	else
	  /bin/kill -HUP -- -$pid
	  success
	fi
	echo
        if [ $MTA = "postfix" ]; then
          echo -n '    Incoming postfix:       '
          $POSTFIX -c /etc/postfix.in reload >/dev/null
          success
          echo
          echo -n '    Outgoing postfix:       '
          $POSTFIX -c /etc/postfix    reload >/dev/null
          success
          echo
        fi
	;;
  restart)
	$0 stop
	sleep 5
	$0 start
	RETVAL=$?
	;;
  *)
	 echo "Usage: service MailScanner {start|stop|status|restart|reload|startin|startout}"
	exit 1
esac

exit $RETVAL