#!/usr/bin/bash
#
# Copyright (C) 1997-2003 Sistina Software, Inc.  All rights reserved.
# Copyright (C) 2004-2011 Red Hat, Inc.  All rights reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# 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.
#

export LC_ALL=C
export LANG=C
export PATH=/bin:/sbin:/usr/bin:/usr/sbin

. $(dirname $0)/ocf-shellfuncs
. $(dirname $0)/utils/config-utils.sh
. $(dirname $0)/utils/messages.sh
. $(dirname $0)/utils/ra-skelet.sh

declare TOMCAT_pid_file="`generate_name_for_pid_file`"
declare TOMCAT_conf_dir="`generate_name_for_conf_dir`/conf"
declare TOMCAT_gen_config_file="$TOMCAT_conf_dir/server.xml"
declare TOMCAT_gen_catalina_base="`generate_name_for_conf_dir`"

declare CATALINA_HOME
declare CATALINA_BASE
declare CATALINA_TMPDIR
declare CLASSPATH
declare TOMCAT_USER
##

verify_all()
{
	clog_service_verify $CLOG_INIT

	if [ -z "$OCF_RESKEY_name" ]; then
		clog_service_verify $CLOG_FAILED "Invalid Name Of Service"
		return $OCF_ERR_ARGS
	fi

	if [ -z "$OCF_RESKEY_service_name" ]; then
		clog_service_verify $CLOG_FAILED_NOT_CHILD
		return $OCF_ERR_ARGS
	fi

	if [ -z "$OCF_RESKEY_config_file" ]; then
		clog_check_file_exist $CLOG_FAILED_INVALID "$OCF_RESKEY_config_file"
		clog_service_verify $CLOG_FAILED
		return $OCF_ERR_ARGS
	fi

	if [ ! -r "$OCF_RESKEY_config_file" ]; then
		clog_check_file_exist $CLOG_FAILED_NOT_READABLE $OCF_RESKEY_config_file
		clog_service_verify $CLOG_FAILED
		return $OCF_ERR_ARGS
	fi

	. "$OCF_RESKEY_config_file"

	if [ $? -ne 0 ]; then
		clog_service_verify $CLOG_FAILED "Error In The File \"$OCF_RESKEY_config_file\""
		return $OCF_ERR_ARGS
	fi 

	if [ -z "$CATALINA_HOME" ]; then
		clog_service_verify $CLOG_FAILED "CATALINA_HOME Not Specified In ${OCF_RESKEY_config_file}"
		return $OCF_ERR_ARGS;
	fi	

	if [ ! -d "$CATALINA_HOME" ]; then
		clog_service_verify $CLOG_FAILED "CATALINA_HOME Does Not Exist"
		return $OCF_ERR_ARGS;
	fi

	if [ -z "$CATALINA_TMPDIR" ]; then
		clog_service_verify $CLOG_FAILED "CATALINA_TMPDIR Not Specified In ${OCF_RESKEY_config_file}"
		return $OCF_ERR_ARGS;
	fi	

	if [ ! -d "$CATALINA_TMPDIR" ]; then
		clog_service_verify $CLOG_FAILED "CATALINA_TMPDIR Does Not Exist"
		return $OCF_ERR_ARGS;
	fi

	if [ -z "$TOMCAT_USER" ]; then
		clog_service_verify $CLOG_FAILED "TOMCAT_USER Does Not Exist"
		return $OCF_ERR_ARGS;
	fi

	clog_service_verify $CLOG_SUCCEED
		
	return 0
}

generate_config_file()
{
	declare original_file="$1"
	declare generated_file="$2"
	declare ip_addresses="$3"

	if [ -f "$generated_file" ]; then
		sha1_verify "$generated_file"
		if [ $? -ne 0 ]; then
			clog_check_sha1 $CLOG_FAILED
			return 0
		fi
	fi	

	clog_generate_config $CLOG_INIT "$original_file" "$generated_file"

	$(dirname $0)/utils/tomcat-parse-config.pl $ip_addresses < "$original_file" > "$generated_file"

        sha1_addToFileXML "$generated_file"
	clog_generate_config $CLOG_SUCCEED "$original_file" "$generated_file"
               
	return 0;
}

start()
{
	clog_service_start $CLOG_INIT

	create_conf_directory "$TOMCAT_conf_dir"
	check_pid_file "$TOMCAT_pid_file"

	if [ $? -ne 0 ]; then
		clog_check_pid $CLOG_FAILED "$TOMCAT_pid_file"
		clog_service_start $CLOG_FAILED
		return $OCF_ERR_GENERIC
	fi
	clog_looking_for $CLOG_INIT "IP Addresses"

        get_service_ip_keys "$OCF_RESKEY_service_name"
        ip_addresses=`build_ip_list`

	if [ -z "$ip_addresses" ]; then
		clog_looking_for $CLOG_FAILED_NOT_FOUND "IP Addresses"
		return $OCF_ERR_GENERIC
	fi
	
	clog_looking_for $CLOG_SUCCEED "IP Addresses"

	. "$OCF_RESKEY_config_file"

	create_pid_directory "$TOMCAT_USER"

	generate_config_file "$CATALINA_BASE/conf/server.xml" "$TOMCAT_gen_config_file" "$ip_addresses"
	rm -f "$TOMCAT_gen_catalina_base/conf/tomcat6.conf"
	( cat $OCF_RESKEY_config_file | grep -v 'CATALINA_PID=' | grep -v 'CATALINA_BASE='; echo CATALINA_BASE="$TOMCAT_gen_catalina_base"; echo CATALINA_PID="$TOMCAT_pid_file") > "$TOMCAT_gen_catalina_base/conf/tomcat6.conf" 
	ln -s "$CATALINA_BASE"/* "$TOMCAT_gen_catalina_base" &> /dev/null
	ln -s "$CATALINA_BASE"/conf/* "$TOMCAT_gen_catalina_base"/conf &> /dev/null
	
	export TOMCAT_CFG="$TOMCAT_gen_catalina_base/conf/tomcat6.conf"

	tomcat6_options="$tomcat6_options $(
				 awk '!/^#/ && !/^$/ { ORS=" "; print "export ", $0, ";" }' \
				 $TOMCAT_CFG
			 )"

	eval "$tomcat6_options"

	/bin/su -s /bin/sh $TOMCAT_USER -c "/usr/sbin/tomcat6 start"

	if [ $? -ne 0 ]; then
		clog_service_start $CLOG_FAILED
		return $OCF_ERR_GENERIC
	fi

	clog_service_start $CLOG_SUCCEED

	return 0;
}

stop()
{
	clog_service_stop $CLOG_INIT

	stop_generic "$TOMCAT_pid_file" "$OCF_RESKEY_shutdown_wait"
	
	if [ $? -ne 0 ]; then
		clog_service_stop $CLOG_FAILED
		return $OCF_ERR_GENERIC
	fi

        if [ -e "$TOMCAT_pid_file" ]; then
		rm -f "$TOMCAT_pid_file"
	fi
                                
	clog_service_stop $CLOG_SUCCEED
	return 0;
}

status()
{
	clog_service_status $CLOG_INIT

	status_check_pid "$TOMCAT_pid_file"
	if [ $? -ne 0 ]; then
		clog_service_status $CLOG_FAILED "$TOMCAT_pid_file"
		return $OCF_ERR_GENERIC
	fi

	clog_service_status $CLOG_SUCCEED
	return 0
}

case $1 in
	meta-data)
		cat `echo $0 | sed 's/^\(.*\)\.sh$/\1.metadata/'`
		exit 0
		;;
	validate-all)
		verify_all
		exit $?
		;;
	start)
		verify_all && start
		exit $?
		;;
	stop)
		verify_all 
		stop
		exit $?
		;;
	status|monitor)
		verify_all
		status
		exit $?
		;;
	restart)
		verify_all
		stop
		start
		exit $?
		;;
	*)
		echo "Usage: $0 {start|stop|status|monitor|restart|meta-data|validate-all}"
		exit $OCF_ERR_UNIMPLEMENTED
		;;
esac
