#!/bin/bash
#
# httpd        Startup script for the Apache HTTP Server
#
# chkconfig: 345 85 15
# description: Apache is a World Wide Web server.  It is used to serve \
#	       HTML files and CGI.
# processname: httpd
# config: /etc/httpd/conf/httpd.conf
# config: /etc/sysconfig/httpd
# pidfile: /var/run/httpd.pid
#
# Originally from Red Hat distribution, but modified for Debian and 
# /usr/local by Eric Myers <Eric.Myers@ligo.org> - 24 Sept. 2007
#######################################################################


# Init script function library.   This stuff is Red Hat specific,
# but if those functions are not found we create our own simple replacements.
# (The idea for replacing the functions came from OpenAFS.  Thanks guys!)

if [ -f /etc/rc.d/init.d/functions ] ; then
        . /etc/rc.d/init.d/functions
else
        export PATH=/sbin:/bin:/usr/sbin:/usr/bin
        function echo_success () { echo -n "    [  OK  ]  " ; }
        function echo_failure () { echo -n "    [FAILED]  " ; }
        function echo_warning () { echo -n "    [WARNING] " ; }
        function killproc() {
             PID=`pidof -s -x -o $$ -o $PPID -o %PPID $1` 
             [ $PID ] && kill $PID ; }
fi


# Start httpd in the C locale by default.
HTTPD_LANG=${HTTPD_LANG-"C"}
export LANG=$HTTPD_LANG

# su on Linux seems to need this to be set to work properly
export TERM dumb


# This will prevent initlog from swallowing up a pass-phrase prompt if
# mod_ssl needs a pass-phrase from the user.
INITLOG_ARGS=""

# Set HTTPD=/usr/sbin/httpd.worker in /etc/sysconfig/httpd to use a server
# with the thread-based "worker" MPM; BE WARNED that some modules may not
# work correctly with a thread-based MPM; notably PHP will refuse to start.

# Path to the apachectl script, server binary, and short-form for messages.

apachectl=${APACHECTL-"/usr/local/sbin/apachectl"}
httpd=${HTTPD-"/usr/local/sbin/httpd"}
prog=`basename $httpd`
pidfile=${PIDFILE-/var/run/httpd.pid}
lockfile=${LOCKFILE-/var/lock/subsys/httpd}
RETVAL=0


## Look for any local configuration settings, which override the above
#  We could even use the system apache2 defaults if nothing else found.

if [ -f /etc/sysconfig/httpd ]; then
  . /etc/sysconfig/httpd
elif [ -f /etc/default/httpd ]; then
  . /etc/default/httpd
elif [ 0 = 1 -a -f /etc/default/apache2 ]; then
  . /etc/default/apache2
  echo "${prog}: using apache2 system defaults..."  
  if [ "$NO_START" != "0" -a "$1" != "stop" ]; then 
    [ "$VERBOSE" != no ] && echo "Not starting apache2 - edit /etc/default/apache2 and change NO_START to be 0.";
    exit 0;
  fi
fi


##
# Check for 1.3 configuration, bail if we have it.
#
check13 () {
	CONFFILE=/etc/httpd/conf/httpd.conf
	GONE="(ServerType|BindAddress|Port|AddModule|ClearModuleList|"
	GONE="${GONE}AgentLog|RefererLog|RefererIgnore|FancyIndexing|"
	GONE="${GONE}AccessConfig|ResourceConfig)"
	if [ -f $CONFFILE ]; then
  	  if LANG=C grep -Eiq "^[[:space:]]*($GONE)" $CONFFILE; then
		echo
		echo 1>&2 " Apache 1.3 configuration directives found"
		echo 1>&2 " please read /usr/share/doc/httpd-2.0.54/migration.html"
		failure "Apache 1.3 config directives test"
		echo
		exit 1
	  fi
	fi
}


##
# The semantics of these functions differ from the way apachectl does
# things -- attempting to start while running is a failure, and shutdown
# when not running is also a failure.  So we just do it the way init scripts
# are expected to behave here.

start() {
        echo -n $"Starting $prog: "
        check13 || exit 1
        $apachectl $OPTIONS start
        RETVAL=$?
        [ $RETVAL = 0 ] && touch ${lockfile}
	[ $RETVAL = 0 ] && echo_success  || echo_failure
	echo
        return $RETVAL
}

stop() {
	echo -n $"Stopping $prog: "
	$apachectl stop
	RETVAL=$?
	[ $RETVAL = 0 ] && rm -f ${lockfile} ${pidfile}
	[ $RETVAL = 0 ] && echo_success  || echo_failure        
	echo 
	return $RETVAL
}


reload() {
    echo -n $"Reloading $prog: "
    if ! $httpd $OPTIONS -t >&/dev/null; then
        RETVAL=$?
        echo $"not reloading due to configuration syntax error"
        failure $"not reloading $prog due to configuration syntax error"
    else
        killproc $httpd -HUP
        RETVAL=$?
	[ $RETVAL = 0 ] && echo_success  || echo_failure
	echo 
    fi
    echo
}



# See how we were called, and do it.

case "$1" in
  start)
	start
	;;
  stop)
	stop
	;;
  status)
        PID=`pidof -x -o $$ -o $PPID -o %PPID httpd`
        if [ "$PID" != "" ]; then
          echo "Apache httpd is running (pid $PID)."
        else
          if [ -f $lockfile ]; then 
             echo "${prog}: server is stopped but lockfile exists."
          else 
             echo "${prog}: server is stopped."
          fi
        fi
	;;

  restart)
	stop
	start
	;;

  condrestart)
	if [ -f ${pidfile} ] ; then
		stop
		start
	fi
	;;

  reload)
        reload
	;;

  graceful|help|configtest|fullstatus)
	$apachectl $@
	RETVAL=$?
	;;
  *)
	echo $"Usage: $prog {start|stop|restart|condrestart|reload|status|fullstatus|graceful|help|configtest}"
	exit 1
esac

exit $RETVAL