#!/bin/bash
#
# For RedHat (:
# description: Starts and stops the LEMP \
#              used to control nginx, MySQL, phpfpm.
### END INIT INFO
###############################################################################
# Copyright 2002-2005 by Kai 'Oswald' Seidler, oswald@apachefriends.org, GPL-licensed
# modified by andychu v1.0

function testport() {
	if netstat -an | egrep ":$1 .*LISTEN" > /dev/null
	then
		return 0
	else
		return 1
	fi
}

function testrun() {
	if test -f $1
	then
		pid=`cat $1`
		if ps ax 2>/dev/null | egrep "^ *$pid.*$2" > /dev/null
		then
			return 0
		else
			rm $1
			return 1
		fi
	else
		return 1
	fi
}

function osguess() {
	if test -f /etc/redhat-release
	then
		if egrep "9 " /etc/redhat-release > /dev/null
		then
			echo "rh9"
			return 0
		fi
	else
		echo "unknown"
		return 0
	fi
}

de="false"
case $LANG in
        de*) de="true";;
esac


# we need root to run 
if test "`id -u`" -ne 0
then
	$de || echo "You need to start LEMP as root!"
	exit
fi

# do we have that new red hat linux 9 with posix native threads?
if test "`osguess`" = "rh9"
then
	# for now disable PNTL. if PNTL gets more popular we will support it. - oswald [8apr3]
	export LD_ASSUME_KERNEL=2.2.5
	#echo "LEMP: DISABLE PNTL..."
fi


version=1.0

case $1 in
	"start")
		$de && echo "Starte LEMP fuer Linux $version..."
		$de || echo "Starting LEMP for Linux $version..."


		$0 startnginx %
		$0 startmysql %
		$0 startphpfpm %
		$0 starttomcat %
		#$0 startmemcached %


		$de || echo "LEMP for Linux started."
		;;

	"reload")
		$0 reloadnginx
		$0 reloadmysql
		$0 reloadphpfpm
		;;

	"startnginx")
		if testrun  /dev/shm/nginx.pid nginx
		then
			$de || echo "LEMP: LEMP-nginx is already running."
		else
			if testport 80
			then
				$de || echo "LEMP: Another web server daemon is already running."
			else
					$de || echo "LEMP: Starting nginx..."
					/opt/nginx/sbin/nginx > /dev/null
				error=$?
				if test $error -gt 0
				then
					$de || echo "LEMP: Error $error! Couldn't start nginx!"
				fi
			fi
		fi
		;;

	"startmysql")
		if testrun /opt/mysql/var/`/bin/hostname`.pid mysqld
		then
			$de || echo "LEMP: LEMP-MySQL is already running."
		else
			if testport 3306
			then
				$de || echo "LEMP: Another MySQL daemon is already running."
			else
				/opt/mysql/bin/mysql.server start > /dev/null &
				$de || echo "LEMP: Starting MySQL..."
			fi
		fi
		;;

	"startphpfpm")
		if testrun /opt/php/logs/php-fpm.pid fpm
		then
			$de || echo "LEMP: LEMP-phpfpm is already running."
		else
			/opt/php/sbin/php-fpm start > /dev/null &
			$de || echo "LEMP: Starting phpfpm..."
		fi
		;;

	"starttomcat")
		if testport 8080
		then
			$de || echo "LEMP: LEMP-tomcat is already running."
		else
			/opt/tomcat/bin/startup.sh > /dev/null &
			$de || echo "LEMP: Starting tomcat..."
		fi
		;;

	"startmemcached")
		if testrun /tmp/memcached.pid memcached
		then
			$de || echo "LEMP: LEMP-memcached is already running."
		else
			if testport 12000
			then
				$de || echo "LEMP: Another memcached daemon is already running."
			else
				/opt/memcached/bin/memcached -d -m 50 -u root -l 127.0.0.1 -p 12000 -c 1024 -P /tmp/memcached.pid > /dev/null &
				$de || echo "LEMP: Starting memcached..."
			fi
		fi
		;;

	"stop")
		$de || echo "Stopping LEMP for Linux $version..."

		$0 stopnginx %
		$0 stopmysql %
		$0 stopphpfpm %
		$0 stoptomcat %
		#$0 stopmemcached %


		$de || echo "LEMP stopped."
		;;

	"stopnginx")
		if test -f /dev/shm/nginx.pid
		then
			/bin/kill -15 `cat /dev/shm/nginx.pid`
			$de || echo "LEMP: Stopping nginx..."
			#sleep 2
			#test -f /dev/shm/nginx.pid && rm /dev/shm/nginx.pid
		else
			$de || echo "LEMP: LEMP-nginx is not running."
		fi
		;;

	"reloadnginx")
		if test -f /dev/shm/nginx.pid
		then
			/bin/kill -HUP `cat /dev/shm/nginx.pid`
			$de && echo "LEMP: Aktualisiere Apache..."
			$de || echo "LEMP: Reload nginx..."
		else
			$de || echo "LEMP: nginx isn't running..."
		fi
		;;


	"stopmysql")
		if test -f /opt/mysql/var/`/bin/hostname`.pid
		then
			/opt/mysql/bin/mysql.server stop > /dev/null 2>&1 &
			$de || echo "LEMP: Stopping MySQL..."
			sleep 2
			test -f /opt/mysql/var/`/bin/hostname`.pid && rm /opt/mysql/var/`/bin/hostname`.pid
		else
			$de || echo "LEMP: LEMP-MySQL is not running."
		fi
		;;

	"reloadmysql")
		if test -f /opt/mysql/var/`/bin/hostname`.pid
		then
			h="`/bin/hostname`"
			/bin/kill -HUP `cat /opt/mysql/var/$h.pid`
			$de || echo "LEMP: Reload MySQL..."
		else
			$de || echo "LEMP: MySQL isn't running..."
		fi
		;;

	"stopphpfpm")
		if testrun /opt/php/logs/php-fpm.pid fpm
		then
			/opt/php/sbin/php-fpm stop > /dev/null &
			$de || echo "LEMP: Stopping phpfpm..."
		else
			$de || echo "LEMP: LEMP-phpfpm is not running."
		fi
		;;

	"reloadphpfpm")
		if testrun /opt/php/logs/php-fpm.pid fpm
		then
			/opt/php/sbin/php-fpm reload > /dev/null &
			$de || echo "LEMP: Reload phpfpm..."
		else
			$de || echo "LEMP: LEMP-phpfpm isn't running..."
		fi
		;;

	"restartphpfpm")
		if testrun /opt/php/logs/php-fpm.pid fpm
		then
			/opt/php/sbin/php-fpm restart > /dev/null &
		else
			$de || echo "LEMP: LEMP-phpfpm isn't running..."
		fi
		;;

	"stoptomcat")
		if testport 8080
		then
			/opt/tomcat/bin/shutdown.sh > /dev/null &
			$de || echo "LEMP: Stopping tomcat..."
		else
			$de || echo "LEMP: LEMP-tomcat is not running."
		fi
		;;

	"restarttomcat")
		$0 stoptomcat
		sleep 4
		$0 starttomcat
		;;

	"stopmemcached")
		if testrun /tmp/memcached.pid memcached
		then
			/bin/kill `cat /tmp/memcached.pid`
			$de || echo "LEMP: Stopping memcached..."
		else
			$de || echo "LEMP: LEMP-memcached is not running."
		fi
		;;

	"restartmemcached")
		$0 stopmemcached
		sleep 4
		$0 startmemcached
		;;

	"restart")
		$0 stop
		sleep 4
		$0 start
		;;

        "version")
                $de || echo "Version: LEMP for Linux $version"
                ;;

	*)	if $de 
		then
			echo ""
		else
			echo "Usage: $0 <action>"
			echo ""
			echo "	start           Start LEMP (nginx, MySQL, phpfpm, tomcat)"
			echo "	startnginx      Start only nginx"
			echo "	startmysql      Start only MySQL"
			echo "	starttomcat     Start only tomcat"
			echo "	startphpfpm     Start only phpfpm"
			echo "	startmemcached  Start only memcached"
			echo ""
			echo "	stop            Stop LEMP (nginx, MySQL, phpfpm, tomcat)"
			echo "	stopnginx       Stop only nginx"
			echo "	stopmysql       Stop only MySQL"
			echo "	stoptomcat      Stop only tomcat"
			echo "	stopphpfpm      Stop only phpfpm"
			echo "	stopmemcached   Stop only memcached"
			echo ""
			echo "	reload          Reload LEMP (nginx, MySQL, phpfpm )"
			echo "	reloadnginx     Reload only nginx"
			echo "	reloadmysql     Reload only MySQL"
			echo "	reloadphpfpm    Reload only phpfpm"
			echo ""
			echo "	restart      Stop and start LEMP"
			echo ""
		fi

		;;
esac