#!/bin/bash
# $Id: httpd.init 481383 2009-12-22 14:30:03Z oden $
# $HeadURL: svn+ssh://svn.mandriva.com/svn/packages/cooker/apache-conf/current/SOURCES/httpd.init $
#
# Startup script for the Apache Web Server
#
# chkconfig: 345 92 8
# description: Apache is a World Wide Web server. It is used to serve \
#	       HTML files and CGI.
# processname: httpd
# pidfile: /var/run/httpd.pid

### BEGIN INIT INFO
# Provides: httpd
# Required-Start: $network
# Required-Stop: $network
# Should-Start: mysqld postgresql radiusd ldap
# Should-Stop: mysqld postgresql radiusd ldap
# Default-Start: 3 4 5
# Short-Description: The Apache Web Server.
# Description: Apache is a World Wide Web server. It is used to serve
#	       HTML files and CGI.
### END INIT INFO

# nuke the environment
for i in `env | sed -e '/^[[:blank:]]/d' | cut -d= -f1 | grep "[A-Z]"`; do
    unset $i;
done

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

# Source the /etc/sysconfig/httpd file.
if [ -f /etc/sysconfig/httpd ]; then
    . /etc/sysconfig/httpd
fi

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

# Use a safe temp directory
export TMP=${HTTPD_TMP:-"/tmp"}
export TMPDIR=${HTTPD_TMPDIR:-"/tmp"}

# Start with defaults
httpdpid=${HTTPDPID:-"/var/run/httpd.pid"}
options=${OPTIONS-""}
httpd=${HTTPD:-"/usr/sbin/httpd"}
statusurl=${STATUSURL:-"http://localhost/server-status"}
processname="`basename $httpd`"

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

## Number of times to try to start Apache in case of error
#times_start="1 2 3"
times_start="1"
sleep_time="1 2 3 4"

# Change the major functions into functions.
moduleargs() {
	moduleargs=
	for module in $1/*.so ; do
		if [ -x ${module} ] ; then
			module=`echo ${module} | awk '{
				gsub(".*/","");
				gsub("^mod_","");
				gsub("^lib","");
				gsub(".so$","");
				print toupper($0)}'`
			moduleargs="${moduleargs} -DHAVE_$module"
		fi
	done
	echo ${moduleargs}
}

# Get the extra modules so only the main server gets them
extramoduleargs() {
	extramoduleargs=
	for extramodule in $1/*.so ; do
		if [ -x ${extramodule} ] ; then
			extramodule=`echo ${extramodule} | awk '{
				gsub(".*/","");
				gsub("^mod_","");
				gsub("^lib","");
				gsub(".so$","");
				print toupper($0)}'`
			extramoduleargs="${extramoduleargs} -DHAVE_$extramodule" 
		fi
	done
	echo ${extramoduleargs}
}

# NOTE: detect/detectlib must be call before any use of $libdir !
detectlib() {
   local is_64bit=no
   case `/usr/bin/file /bin/bash` in
   *"ELF 64"*)
     is_64bit=yes
     ;;
   esac
   libdir="/usr/lib"
   case `uname -m`:$is_64bit in
   powerpc64:yes | s390x:yes | sparc64:yes | x86_64:yes) libdir="/usr/lib64";;
   esac
}

detect() {
   detectlib
   httpdconf=${HTTPDCONF:-"-f /etc/httpd/conf/httpd.conf"}
   extramodules="-DAPACHE2 `extramoduleargs /etc/httpd/extramodules`"
   modules=`moduleargs /etc/httpd/modules`
   debug=${DEBUG:-"-DNO_DETACH -DONE_PROCESS -DDEBUG"}
}

## Hack for ApacheJServ that takes forever to shut down and restart
snooze() {
	for count in 1 2 3 4 5 6 7 8 9 ; do echo "."; sleep 1; done
	echo
}

conftest() {
        detect
	badconf=0
	if [ -x $httpd ]; then
		action "Checking configuration sanity for apache: " \
			$httpd -t $httpdconf $extramodules $modules $options
		badconf=$?
	fi
	return $badconf
}

conftest_vhosts() {
        detect
	badconf=0
	if [ -x $httpd ]; then
		action "Checking configuration sanity for apache: " \
			$httpd -t $httpdconf $extramodules $modules $options -D DUMP_VHOSTS
		badconf=$?
	fi
	return $badconf
}

pidfilenuker() {
	if [ -z "`/sbin/pidof $processname`" ] && [ -e $httpdpid ]; then
	    echo -n "removing stale pid file."
	    rm -f $httpdpid
	    echo
	fi
}

RETVAL=0

# See how we were called.
case "$1" in
  start)
	if [ -n "`/sbin/pidof $processname`" ] && [ -e $httpdpid ]; then
	    echo -n "apache is already running."
	    echo
        fi
	pidfilenuker
	for tries in $times_start; do
	  if [ -x $httpd -a ! -e $httpdpid ]; then 
		if [ $tries -eq 1 ]; then echo -n "Starting httpd: "; fi
		detect
		if ! [ -z "${ULIMIT_OPTIONS}" ]; then ulimit ${ULIMIT_OPTIONS}; fi
		$httpd $httpdconf $extramodules $modules $options && success || failure
		RETVAL=$?
		echo
		if [ $RETVAL -eq 0 ]; then
		    for wait in $sleep_time; do
			if [ ! -e $httpdpid ]; then sleep 1; fi
		    done
		fi
		[ $RETVAL -eq 0 ] && touch /var/lock/subsys/httpd
	  fi
	done
	;;
  stop)
	pidfilenuker
	if [ -e $httpdpid ]; then 
		echo -n "Shutting down httpd: "
		killproc $processname
		if [ -e $libdir/apache-extramodules/mod_jserv.so ]; then
			snooze
			while [ -e $httpdpid ]; do
				echo "Trying harder"
				snooze
				killproc $processname
			done
		fi
	fi
	RETVAL=$?
	echo
	[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/httpd
	;;
  graceful-stop)
        detect
	if [ -e $httpdpid ]; then 
		echo -n "Sending WINCH to httpd: "
		killproc $processname -WINCH
		echo
	fi
	RETVAL=$?
	[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/httpd
	;;
  debug)
	echo -n "Starting httpd (debug mode and in the foreground): "
	detect
	if ! [ -z "${ULIMIT_OPTIONS}" ]; then ulimit ${ULIMIT_OPTIONS}; fi
	if [ -x /usr/bin/gdb ]; then
	    echo "using gdb (assumes all needed debug packages are installed)"
	    gdb $httpd --batch --quiet \
	    -ex "run $httpdconf $debug $extramodules $modules $options" \
	    -ex "thread apply all bt full" \
	    -ex "quit"
	else
	    $httpd $httpdconf $debug \
		-c "Pidfile /tmp/httpd-debug.pid" \
		-c "LogLevel debug" \
		-c "ErrorLog /dev/stdout" \
		-c "CustomLog /dev/stdout common" \
		$extramodules $modules $options
	fi
	RETVAL=$?
	echo
	[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/httpd /tmp/httpd-debug.pid
	;;
  extendedstatus)
        detect
	if [ -e $httpdpid ]; then 
	    lynx -dump $statusurl | awk ' /process$/ { print; exit } { print } '
	    echo
	    echo "#######################################"
	    echo "#######################################"
	fi
	if [ ! -e $httpdpid ]; then	
		echo "Apache is *not* running."
		echo
		RETVAL=3
	fi
	;;
  status)
        detect
	status $processname
	echo "Use $0 extendedstatus for more information."
	echo
	;;
  restart)
	$0 stop
	$0 start
	RETVAL=$?
	;;
  update|condrestart)
	if [ -e $httpdpid ]; then
	    $0 stop
	    conftest || exit $?
	    $0 start
	    RETVAL=$?
	fi
	;;
  reload|graceful|condreload)
	# in doubt, check both possible library dirs
	if [ -e $libdir/apache-extramodules/mod_jserv.so ]; then
	    $0 stop
	    $0 start
	else
                detect
		if [ -e $httpdpid ]; then 
			echo -n "Reloading httpd: "
			killproc $processname -USR1
			echo
		fi
	fi
	;;
  closelogs)
        detect
	if [ -e $httpdpid ]; then 
		echo -n "Sending HUP to httpd: "
		killproc $processname -HUP
		echo
	fi
	;;
  configtest)
        conftest
	exit $?
	;;
  configtest_vhosts)
        conftest_vhosts
	exit $?
	;;
  show_defines)
	# OE 20041013 make it spit out all those -D variables to make it
	# easier to use something like:
	# httpd -f /etc/httpd/conf/httpd.conf `/etc/rc.d/init.d/httpd show_defines` -t
        detect
	echo "$extramodules $modules $options"
	exit $?
	;;
  *)
	echo "Usage: $0 {start|stop|graceful-stop|restart|reload|graceful|condreload|closelogs|update|condrestart|status|extendedstatus|configtest|configtest_vhosts|debug|show_defines}"
	exit 1
esac

exit $RETVAL