#!/bin/sh
#
# Description:  Manages a Tomcat Server as an OCF High-Availability
#               resource under Heartbeat/LinuxHA control
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA  
# 02110-1301, USA.
#
# Copyright (c) 2007 NIPPON TELEGRAPH AND TELEPHONE CORPORATION
#
#######################################################################
# OCF parameters:
#   OCF_RESKEY_tomcat_name - The name of the resource. Default is tomcat
#   OCF_RESKEY_script_log  - A destination of the log of this script. Default /var/log/OCF_RESKEY_tomcat_name.log
#   OCF_RESKEY_tomcat_stop_timeout  - Time-out at the time of the stop. Default is 5. DEPRECATED
#   OCF_RESKEY_tomcat_suspend_trialcount  - The re-try number of times awaiting a stop. Default is 10. DEPRECATED
#   OCF_RESKEY_tomcat_user  - A user name to start a resource.
#   OCF_RESKEY_statusurl - URL for state confirmation. Default is http://127.0.0.1:8080
#   OCF_RESKEY_max_stop_time - The max time it should take for proper shutdown. Restrictions, only Tomcat6.
#   OCF_RESKEY_java_home - Home directory of Java. Default is none
#   OCF_RESKEY_java_opts - Options to pass to Java JVM for start and stop. Default is none
#   OCF_RESKEY_catalina_home - Home directory of Tomcat. Default is none
#   OCF_RESKEY_catalina_base - Base directory of Tomcat. Default is OCF_RESKEY_catalina_home
#   OCF_RESKEY_catalina_out - Log file name of Tomcat. Default is OCF_RESKEY_catalina_base/logs/catalina.out
#   OCF_RESKEY_catalina_pid  - A PID file name of Tomcat. Default is OCF_RESKEY_catalina_base/logs/catalina.pid
#   OCF_RESKEY_tomcat_start_opts - Start options of Tomcat. Default is none.
#   OCF_RESKEY_catalina_opts - CATALINA_OPTS environment variable. Default is none.
#   OCF_RESKEY_catalina_tmpdir - CATALINA_TMPDIR environment variable. Default is none.
#   OCF_RESKEY_catalina_rotate_log - Control catalina.out logrotation flag. Default is NO.
#   OCF_RESKEY_catalina_rotatetime - catalina.out logrotation time span(seconds). Default is 86400.
#   OCF_RESKEY_java_endorsed_dirs - JAVA_ENDORSED_DIRS environment variable. Default is none.
#   OCF_RESKEY_logging_config - LOGGING_CONFIG environment variable. Default is none.
#   OCF_RESKEY_logging_manager - LOGGING_MANAGER environment variable. Default is none.
###############################################################################


: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs

# Use runuser if available for SELinux.
if [ -x /sbin/runuser ]; then 
  SU=runuser
else
  SU=su
fi

usage() 
{
	cat <<-EOF
usage: $0 action

action:
        start   start Tomcat

        stop    stop Tomcat

        status  return the status of Tomcat, up or down

        monitor  return TRUE if Tomcat appears to be working.
                 You have to have installed $WGETNAME for this to work.

        meta-data       show meta data message

        validate-all    validate the instance parameters
EOF
}

isrunning_tomcat()
{
	$WGET --tries=20 -O /dev/null $RESOURCE_STATUSURL >/dev/null 2>&1
}

isalive_tomcat()
{
	if ocf_is_true $SYSTEMD; then
		systemctl is-active tomcat@${TOMCAT_NAME} > /dev/null 2>&1
		return $?
	fi
	# As the server stops, the PID file disappears. To avoid race conditions, 
	# we will have remembered the PID of a running instance on script entry.
	local pid=$rememberedPID
	# If there is a PID file, attempt to use that
	if [ -f $CATALINA_PID ]; then
		local tmp
		ocf_log debug "Reading pid from $CATALINA_PID"
		tmp=`head -n 1 $CATALINA_PID`
		if [ $? -eq 0 ]; then
			pid=$tmp
		fi
	fi
	if [ -n "$pid" ] && [ "$pid" -gt 0 ]; then
		# Retry message for restraint
		ocf_log debug "Sending noop signal to $pid"
		kill -s 0 $pid >/dev/null 2>&1
		return $?
	fi
	# No PID file
	false
}

# Check rotatelogs process and restart if it is stopped
monitor_rotatelogs()
{
	pgrep -f "$ROTATELOGS.*$CATALINA_BASE/logs/catalina_%F.log" > /dev/null 2>&1
	if [ $? -ne 0 ]; then
		ocf_log warn "A rotatelogs command for $CATALINA_BASE/logs/catalina_%F.log is not running. Restarting it."
		start_rotatelogs
		if [ $? -eq 0 ]; then
			ocf_log info "Restart rotatelogs process succeeded."
		else
			ocf_log warn "Restart rotatelogs process failed."
		fi
	fi
}

monitor_tomcat()
{
	isalive_tomcat ||
		return $OCF_NOT_RUNNING
	isrunning_tomcat ||
		return $OCF_ERR_GENERIC
	if ocf_is_true ${CATALINA_ROTATE_LOG}; then
		# Monitor rotatelogs process and restart it if it is stopped.
		# And never consider rotatelogs process failure to be a monitor failure
		# as long as Tomcat process works fine.
		monitor_rotatelogs
	fi
	return $OCF_SUCCESS
}

start_rotatelogs()
{
	# -s is required because tomcat5.5's login shell is /bin/false
	$SU - -s /bin/sh $RESOURCE_TOMCAT_USER \
        	-c "$ROTATELOGS -l \"$CATALINA_BASE/logs/catalina_%F.log\" $CATALINA_ROTATETIME" \
        	< "$CATALINA_OUT" > /dev/null 2>&1 &
}

# Execute catalina.out log rotation
rotate_catalina_out()
{
	# Check catalina_%F.log is writable or not.
	CURRENT_ROTATELOG_SUFFIX=`date +"%F"`
	$SU - -s /bin/sh $RESOURCE_TOMCAT_USER \
		-c "touch \"$CATALINA_BASE/logs/catalina_$CURRENT_ROTATELOG_SUFFIX.log\"" > /dev/null 2>&1
	if [ $? -ne 0 ]; then
		ocf_exit_reason "$CATALINA_BASE/logs/catalina_$CURRENT_ROTATELOG_SUFFIX.log is not writable."
		return $OCF_ERR_GENERIC
	fi

	# Clean up and set permissions on required files
	rm -rf "$CATALINA_BASE"/temp/*
	if [ -p "$CATALINA_OUT" ]; then
		rm -f "$CATALINA_OUT"
	elif [ -e "$CATALINA_OUT" ]; then
		DATE=`date +"%F-%H%M%S"`
		ocf_log warn "$CATALINA_OUT already exists. It is saved as $CATALINA_OUT-$DATE"
		mv "$CATALINA_OUT" "$CATALINA_OUT-$DATE"
	fi
	mkfifo -m700 "$CATALINA_OUT"
	chown --dereference "$RESOURCE_TOMCAT_USER" "$CATALINA_OUT" || true

	start_rotatelogs
}

create_systemd_config()
{
cat<<-EOF > /etc/sysconfig/tomcat@${TOMCAT_NAME}
JAVA_HOME=${JAVA_HOME}
JAVA_OPTS="${JAVA_OPTS}"
CATALINA_HOME=${CATALINA_HOME}
CATALINA_BASE=${CATALINA_BASE}
CATALINA_OUT=${CATALINA_OUT}
CATALINA_OPTS="${CATALINA_OPTS}"
CATALINA_TMPDIR="${CATALINA_TMPDIR}"
JAVA_ENDORSED_DIRS="${JAVA_ENDORSED_DIRS}"
LOGGING_CONFIG="${LOGGING_CONFIG}"
LOGGING_MANAGER="${LOGGING_MANAGER}"
TOMCAT_CFG=${TOMCAT_CFG}
EOF
}

# shellcheck disable=SC2068
tomcatCommand()
{
	if ocf_is_true $SYSTEMD; then
		systemctl $@ tomcat@${TOMCAT_NAME}
	else
cat<<-END_TOMCAT_COMMAND
	export JAVA_HOME=${JAVA_HOME}
	export JAVA_OPTS="${JAVA_OPTS}"
	export CATALINA_HOME=${CATALINA_HOME}
	export CATALINA_BASE=${CATALINA_BASE}
	export CATALINA_OUT=${CATALINA_OUT}
	export CATALINA_PID=${CATALINA_PID}
	export CATALINA_OPTS="${CATALINA_OPTS}"
	export CATALINA_TMPDIR="${CATALINA_TMPDIR}"
	export JAVA_ENDORSED_DIRS="${JAVA_ENDORSED_DIRS}"
	export LOGGING_CONFIG="${LOGGING_CONFIG}"
	export LOGGING_MANAGER="${LOGGING_MANAGER}"
	export TOMCAT_CFG=${TOMCAT_CFG}
	$TOMCAT_START_SCRIPT $@
END_TOMCAT_COMMAND
	fi
}

# shellcheck disable=SC2068
attemptTomcatCommand()
{
	if [ -n "$REDIRECT_DEFAULT_CONFIG" ]; then
		TOMCAT_CFG=$(mktemp "${HA_RSCTMP}/tomcat-tmp-XXXXX.cfg")
		export TOMCAT_CFG
	fi

	if ocf_is_true $SYSTEMD; then
		tomcatCommand $@
	elif [ "$RESOURCE_TOMCAT_USER" = root ]; then
		"$TOMCAT_START_SCRIPT" $@ >> "$TOMCAT_CONSOLE" 2>&1
	else
		tomcatCommand $@ | $SU - -s /bin/sh "$RESOURCE_TOMCAT_USER" >> "$TOMCAT_CONSOLE" 2>&1
	fi

	if [ -n "$REDIRECT_DEFAULT_CONFIG" ]; then
		rm -f "$TOMCAT_CFG"
	fi
}

start_tomcat()
{
	if ocf_is_true $SYSTEMD; then
		create_systemd_config
	fi
	cd "$CATALINA_HOME/bin" || return $OCF_ERR_GENERIC

	validate_all_tomcat || exit $?

	monitor_tomcat
	if [ $? -eq $OCF_SUCCESS ]; then
		return $OCF_SUCCESS
	fi

	# Remove $CATALINA_PID if it exists
	rm -f $CATALINA_PID

	#ocf_log debug "catalina.out rotation FLG = ${CATALINA_ROTATE_LOG}"
	if ocf_is_true ${CATALINA_ROTATE_LOG}; then
		rotate_catalina_out
		if [ $? -eq 0 ]; then
			ocf_log debug "Rotate catalina.out succeeded."
		else
			ocf_exit_reason "Rotate catalina.out failed. Avoid starting tomcat without catalina.out rotation."
			return $OCF_ERR_GENERIC
		fi
	fi

	echo "`date "+%Y/%m/%d %T"`: start ===========================" >> "$TOMCAT_CONSOLE"

	ocf_log debug "CATALINA_OPTS value = ${CATALINA_OPTS}"
	attemptTomcatCommand start ${TOMCAT_START_OPTS} &

	while true; do
		monitor_tomcat
		if [ $? -eq $OCF_SUCCESS ]; then
			break
		fi
		ocf_log debug "start_tomcat[$TOMCAT_NAME]: retry monitor_tomcat"
		sleep 3
	done

	return $OCF_SUCCESS
}

stop_tomcat()
{
	local stop_time
	local RA_TIMEOUT=20
	local TOMCAT_STOP_OPTS=""

	if [ -n "$OCF_RESKEY_CRM_meta_timeout" ]; then
		RA_TIMEOUT=$((OCF_RESKEY_CRM_meta_timeout/1000))
	fi

	STOP_TIMEOUT=$((RA_TIMEOUT-5))
	if [ -n "$MAX_STOP_TIME" ]; then
		if [ $MAX_STOP_TIME -gt $RA_TIMEOUT ]; then
			ocf_log warn "max_stop_timeout must be shorter than the timeout of stop operation."
		fi
		if [ $MAX_STOP_TIME -eq 0 ]; then
			STOP_TIMEOUT=$RA_TIMEOUT
		else
			STOP_TIMEOUT=$MAX_STOP_TIME
		fi
	fi

	cd "$CATALINA_HOME/bin"

	memorize_pid # This lets monitoring continue to work reliably

	echo "`date "+%Y/%m/%d %T"`: stop  ###########################" >> "$TOMCAT_CONSOLE"

	if [ "$TOMCAT_START_SCRIPT" = "$CATALINA_HOME/bin/catalina.sh" ]; then
		TOMCAT_STOP_OPTS="$STOP_TIMEOUT -force"
	fi
	stop_time=$(date +%s)
	attemptTomcatCommand stop $TOMCAT_STOP_OPTS

	lapse_sec=0
	while isalive_tomcat; do
		sleep 1
		lapse_sec=`expr $(date +%s) - $stop_time`
		if [ $lapse_sec -ge $STOP_TIMEOUT ]; then
			ocf_log debug "stop_tomcat[$TOMCAT_NAME]: stop failed, killing with SIGKILL ($lapse_sec)"
			kill -s KILL $rememberedPID > /dev/null 2>&1
		fi
	done

	if ocf_is_true ${CATALINA_ROTATE_LOG}; then
		rm -f "$CATALINA_PID" "${CATALINA_OUT}"
	else
		rm -f "$CATALINA_PID"
	fi
	return $OCF_SUCCESS
}

metadata_tomcat()
{
    cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="tomcat" version="1.0">
<version>1.0</version>

<longdesc lang="en">
Resource script for Tomcat. It manages a Tomcat instance as a cluster resource.
</longdesc>
<shortdesc lang="en">Manages a Tomcat servlet environment instance</shortdesc>

<parameters>

<parameter name="tomcat_name" unique="1" >
<longdesc lang="en">
The name of the resource, added as a Java parameter in JAVA_OPTS:
-Dname=&lt;tomcat_name&gt; to Tomcat process on start. Used to ensure
process is still running and must be unique.
</longdesc>
<shortdesc lang="en">The name of the resource</shortdesc>
<content type="string" default="${OCF_RESKEY_tomcat_name_default}" />
</parameter>

<parameter name="script_log" unique="1">
<longdesc lang="en">
Log file, used during start and stop operations.
</longdesc>
<shortdesc lang="en">Log file</shortdesc>
<content type="string" default="${OCF_RESKEY_script_log_default}" />
</parameter>

<parameter name="tomcat_stop_timeout" unique="0">
<longdesc lang="en">
Time-out for stop operation. DEPRECATED
</longdesc>
<shortdesc lang="en">Time-out for the stop operation. DEPRECATED</shortdesc>
<content type="integer" default="${OCF_RESKEY_tomcat_stop_timeout_default}" />
</parameter>

<parameter name="tomcat_suspend_trialcount" unique="0">
<longdesc lang="en">
Maximum number of times to retry stop operation before suspending
and killing Tomcat. DEPRECATED. Does not retry.
</longdesc>
<shortdesc lang="en">Max retry count for stop operation. DEPRECATED</shortdesc>
<content type="integer" default="${OCF_RESKEY_tomcat_suspend_trialcount_default}" />
</parameter>

<parameter name="tomcat_user" unique="0">
<longdesc lang="en">
The user who starts Tomcat.
</longdesc>
<shortdesc lang="en">The user who starts Tomcat</shortdesc>
<content type="string" default="${OCF_RESKEY_tomcat_user_default}" />
</parameter>

<parameter name="statusurl" unique="0">
<longdesc lang="en">
URL for state confirmation.
</longdesc>
<shortdesc lang="en">URL for state confirmation</shortdesc>
<content type="string" default="${OCF_RESKEY_statusurl_default}" />
</parameter>

<parameter name="max_stop_time" unique="0">
<longdesc lang="en">
Number of seconds to wait during a stop before drastic measures
(force kill) are used on the tomcat process. 
This number MUST be less than your cluster stop timeout for the resource.
The default value is five seconds before the timeout value of stop operation.
When it is over this value, it stops a process in kill commands.
This parameter is only effective on Tomcat 6 or later.
</longdesc>
<shortdesc lang="en">The max time it should take for proper shutdown.</shortdesc>
<content type="integer" default="${OCF_RESKEY_max_stop_time_default}" />
</parameter>

<parameter name="java_home" unique="0" required="1">
<longdesc lang="en">
Home directory of Java.
</longdesc>
<shortdesc lang="en">Home directory of Java</shortdesc>
<content type="string" default="${OCF_RESKEY_java_home_default}" />
</parameter>

<parameter name="java_opts" unique="0">
<longdesc lang="en">
Java JVM options used on start and stop.
</longdesc>
<shortdesc lang="en">Java options parsed to JVM, used on start and stop.</shortdesc>
<content type="string" default="${OCF_RESKEY_java_opts_default}" />
</parameter>

<parameter name="catalina_home" unique="0" required="1">
<longdesc lang="en">
Home directory of Tomcat.
</longdesc>
<shortdesc lang="en">Home directory of Tomcat</shortdesc>
<content type="string" default="${OCF_RESKEY_catalina_home_default}" />
</parameter>

<parameter name="catalina_base" unique="1">
<longdesc lang="en">
Instance directory of Tomcat
</longdesc>
<shortdesc lang="en">Instance directory of Tomcat, defaults to catalina_home</shortdesc>
<content type="string" default="${OCF_RESKEY_catalina_base_default}" />
</parameter>

<parameter name="catalina_out" unique="1">
<longdesc lang="en">
Log file name of Tomcat
</longdesc>
<shortdesc lang="en">Log file name of Tomcat, defaults to catalina_base/logs/catalina.out</shortdesc>
<content type="string" default="${OCF_RESKEY_catalina_out_default}" />
</parameter>

<parameter name="catalina_pid" unique="1">
<longdesc lang="en">
A PID file name for Tomcat.
</longdesc>
<shortdesc lang="en">A PID file name for Tomcat</shortdesc>
<content type="string" default="${OCF_RESKEY_catalina_pid_default}" />
</parameter>

<parameter name="force_systemd" unique="0" required="0">
<longdesc lang="en">
Force use of systemd when available.
</longdesc>
<shortdesc lang="en">Force use of systemd when available</shortdesc>
<content type="string" default="${OCF_RESKEY_force_systemd_default}" />
</parameter>

<parameter name="tomcat_start_script" unique="0" required="0">
<longdesc lang="en">
Absolute path to the custom tomcat start script to use.
</longdesc>
<shortdesc lang="en">Tomcat start script location</shortdesc>
<content type="string" default="${OCF_RESKEY_tomcat_start_script_default}" />
</parameter>

<parameter name="tomcat_start_opts" unique="0">
<longdesc lang="en">
Tomcat start options.
</longdesc>
<shortdesc lang="en">Tomcat start options</shortdesc>
<content type="string" default="${OCF_RESKEY_tomcat_start_opts_default}" />
</parameter>

<parameter name="catalina_opts" unique="0">
<longdesc lang="en">
Catalina options, for the start operation only.
</longdesc>
<shortdesc lang="en">Catalina options</shortdesc>
<content type="string" default="${OCF_RESKEY_catalina_opts_default}" />
</parameter>

<parameter name="catalina_tmpdir" unique="1">
<longdesc lang="en">
Temporary directory of Tomcat
</longdesc>
<shortdesc lang="en">Temporary directory of Tomcat, defaults to none</shortdesc>
<content type="string" default="${OCF_RESKEY_catalina_tmpdir_default}" />
</parameter>

<parameter name="catalina_rotate_log" unique="0">
<longdesc lang="en">
Rotate catalina.out flag.
</longdesc>
<shortdesc lang="en">Rotate catalina.out flag</shortdesc>
<content type="boolean" default="${OCF_RESKEY_catalina_rotate_log_default}" />
</parameter>

<parameter name="catalina_rotatetime" unique="0">
<longdesc lang="en">
catalina.out rotation interval (seconds).
</longdesc>
<shortdesc lang="en">catalina.out rotation interval (seconds)</shortdesc>
<content type="integer" default="${OCF_RESKEY_catalina_rotatetime_default}" />
</parameter>

<parameter name="java_endorsed_dirs" unique="1">
<longdesc lang="en">
Java_endorsed_dirs of tomcat
</longdesc>
<shortdesc lang="en">Java_endorsed_dirs of Tomcat, defaults to none</shortdesc>
<content type="string" default="${OCF_RESKEY_java_endorsed_dirs_default}" />
</parameter>

<parameter name="logging_config" unique="1">
<longdesc lang="en">
Logging_config of tomcat
</longdesc>
<shortdesc lang="en">Logging_config of Tomcat, defaults to none</shortdesc>
<content type="string" default="${OCF_RESKEY_logging_config_default}" />
</parameter>

<parameter name="logging_manager" unique="1">
<longdesc lang="en">
Logging_manager of tomcat
</longdesc>
<shortdesc lang="en">Logging_manager of Tomcat, defaults to none.</shortdesc>
<content type="string" default="${OCF_RESKEY_logging_manager_default}" />
</parameter>

</parameters>

<actions>
<action name="start" timeout="60s" />
<action name="stop" timeout="120s" />
<action name="status" timeout="60s" />
<action name="monitor" depth="0" timeout="30s" interval="10s" />
<action name="meta-data" timeout="5s" />
<action name="validate-all"  timeout="5s"/>
</actions>
</resource-agent>
END
	return $OCF_SUCCESS
}

validate_all_tomcat()
{
	local port
	local rc=$OCF_SUCCESS
	ocf_log info "validate_all_tomcat[$TOMCAT_NAME]"

	check_binary $WGET

	if ! ocf_is_true $OCF_RESKEY_force_systemd && [ -z "${TOMCAT_START_SCRIPT}" ]; then
		ocf_exit_reason "No default tomcat start script detected. Please specify start script location using the 'tomcat_start_script' option"
		rc=$OCF_ERR_CONFIGURED
	fi

	if [ -n "$MAX_STOP_TIME" ] && [ "$MAX_STOP_TIME" -lt 0 ]; then
		ocf_exit_reason "max_stop_time must be set to a value greater than 0."
		rc=$OCF_ERR_CONFIGURED
	fi

	if echo "$RESOURCE_STATUSURL" | grep -q ":[0-9][0-9]*" ; then
		port=${RESOURCE_STATUSURL##*:}
		port=${port%%/*}
		ocf_log debug "Tomcat port is $port"
		ocf_log debug "grep port=\"$port\" $CATALINA_BASE/conf/server.xml"
		grep "port=\"$port\"" $CATALINA_BASE/conf/server.xml > /dev/null 2>&1
		if [ $? -ne 0 ]; then
			ocf_exit_reason "Your configured status URL specifies a port ($port), but the server does not have a connector listening to that port in $CATALINA_BASE/conf/server.xml"
			rc=$OCF_ERR_INSTALLED
		fi
	fi

	if ocf_is_true ${CATALINA_ROTATE_LOG}; then
		if [ ! -x "$ROTATELOGS" ]; then
			ocf_exit_reason "rotatelogs command does not exist."
			rc=$OCF_ERR_INSTALLED
		fi
	fi

	return $rc
}

# As we stop tomcat, it removes it's own pid file...we still want to know what it was
memorize_pid()
{
	if [ -f $CATALINA_PID ]; then
		rememberedPID=$(cat $CATALINA_PID)
	fi
}

#
### tomcat RA environment variables
#

# Parameter defaults

OCF_RESKEY_tomcat_name_default="tomcat"
OCF_RESKEY_catalina_home_default=""
OCF_RESKEY_catalina_base_default=""

: ${OCF_RESKEY_tomcat_name=${OCF_RESKEY_tomcat_name_default}}
: ${OCF_RESKEY_catalina_home=${OCF_RESKEY_catalina_home_default}}
: ${OCF_RESKEY_catalina_base=${OCF_RESKEY_catalina_base_default}}

# Only default to true for RedHat systems without catalina.sh
if [ -e "${OCF_RESKEY_catalina_home}/bin/catalina.sh" ] || ! is_redhat_based; then
	OCF_RESKEY_force_systemd_default=0
else
	OCF_RESKEY_force_systemd_default=1
fi

: ${OCF_RESKEY_force_systemd=${OCF_RESKEY_force_systemd_default}}

if [ -z "${OCF_RESKEY_tomcat_start_script}" ]; then
	if ocf_is_true $OCF_RESKEY_force_systemd && \
	     systemd_is_running; then
		SYSTEMD=1
	elif [ -e "${OCF_RESKEY_catalina_home}/bin/catalina.sh" ]; then
		TOMCAT_START_SCRIPT="${OCF_RESKEY_catalina_home}/bin/catalina.sh"
	elif [ -e "/usr/sbin/tomcat" ]; then
		REDIRECT_DEFAULT_CONFIG=1
		TOMCAT_START_SCRIPT="/usr/sbin/tomcat"
	elif [ -e "/usr/sbin/tomcat6" ]; then
		REDIRECT_DEFAULT_CONFIG=1
		TOMCAT_START_SCRIPT="/usr/sbin/tomcat6"
	fi
fi

OCF_RESKEY_script_log_default="/var/log/${OCF_RESKEY_tomcat_name}.log"
OCF_RESKEY_tomcat_stop_timeout_default=""
OCF_RESKEY_tomcat_suspend_trialcount_default=""
OCF_RESKEY_tomcat_user_default="root"
OCF_RESKEY_statusurl_default="http://127.0.0.1:8080"
OCF_RESKEY_max_stop_time_default=""
OCF_RESKEY_java_home_default=""
OCF_RESKEY_java_opts_default=""
OCF_RESKEY_catalina_out_default="${OCF_RESKEY_catalina_base-${OCF_RESKEY_catalina_home}}/logs/catalina.out"
OCF_RESKEY_catalina_pid_default=""
OCF_RESKEY_tomcat_start_script_default="${TOMCAT_START_SCRIPT}"
OCF_RESKEY_tomcat_start_opts_default=""
OCF_RESKEY_catalina_opts_default=""
OCF_RESKEY_catalina_tmpdir_default=""
OCF_RESKEY_catalina_rotate_log_default="NO"
OCF_RESKEY_catalina_rotatetime_default="86400"
OCF_RESKEY_java_endorsed_dirs_default=""
OCF_RESKEY_logging_config_default=""
OCF_RESKEY_logging_manager_default=""

: ${OCF_RESKEY_script_log=${OCF_RESKEY_script_log_default}}
: ${OCF_RESKEY_tomcat_stop_timeout=${OCF_RESKEY_tomcat_stop_timeout_default}}
: ${OCF_RESKEY_tomcat_suspend_trialcount=${OCF_RESKEY_tomcat_suspend_trialcount_default}}
: ${OCF_RESKEY_tomcat_user=${OCF_RESKEY_tomcat_user_default}}
: ${OCF_RESKEY_statusurl=${OCF_RESKEY_statusurl_default}}
: ${OCF_RESKEY_max_stop_time=${OCF_RESKEY_max_stop_time_default}}
: ${OCF_RESKEY_java_home=${OCF_RESKEY_java_home_default}}
: ${OCF_RESKEY_java_opts=${OCF_RESKEY_java_opts_default}}
: ${OCF_RESKEY_catalina_out=${OCF_RESKEY_catalina_out_default}}
: ${OCF_RESKEY_catalina_pid=${OCF_RESKEY_catalina_pid_default}}
: ${OCF_RESKEY_tomcat_start_script=${OCF_RESKEY_tomcat_start_script_default}}
: ${OCF_RESKEY_tomcat_start_opts=${OCF_RESKEY_tomcat_start_opts_default}}
: ${OCF_RESKEY_catalina_opts=${OCF_RESKEY_catalina_opts_default}}
: ${OCF_RESKEY_catalina_tmpdir=${OCF_RESKEY_catalina_tmpdir_default}}
: ${OCF_RESKEY_catalina_rotate_log=${OCF_RESKEY_catalina_rotate_log_default}}
: ${OCF_RESKEY_catalina_rotatetime=${OCF_RESKEY_catalina_rotatetime_default}}
: ${OCF_RESKEY_java_endorsed_dirs=${OCF_RESKEY_java_endorsed_dirs_default}}
: ${OCF_RESKEY_logging_config=${OCF_RESKEY_logging_config_default}}
: ${OCF_RESKEY_logging_manager=${OCF_RESKEY_logging_manager_default}}

COMMAND=$1
TOMCAT_NAME="${OCF_RESKEY_tomcat_name}"
TOMCAT_CONSOLE="${OCF_RESKEY_script_log}"
RESOURCE_TOMCAT_USER="${OCF_RESKEY_tomcat_user}"
RESOURCE_STATUSURL="${OCF_RESKEY_statusurl}"

JAVA_HOME="${OCF_RESKEY_java_home}"
JAVA_OPTS="${OCF_RESKEY_java_opts}"
CATALINA_HOME="${OCF_RESKEY_catalina_home}"
CATALINA_BASE="${OCF_RESKEY_catalina_base-${OCF_RESKEY_catalina_home}}"
CATALINA_OUT="${OCF_RESKEY_catalina_out}"

CATALINA_PID=$OCF_RESKEY_catalina_pid
if [ -z "$CATALINA_PID" ] && [ "$__OCF_ACTION" = "start" ]; then
	mkdir -p "${HA_RSCTMP}/${TOMCAT_NAME}_tomcatstate/"
	if [ "${RESOURCE_TOMCAT_USER}" != "root" ]; then
		chown ${RESOURCE_TOMCAT_USER} "${HA_RSCTMP}/${TOMCAT_NAME}_tomcatstate/"
	fi
	CATALINA_PID="${HA_RSCTMP}/${TOMCAT_NAME}_tomcatstate/catalina.pid"
fi

MAX_STOP_TIME="${OCF_RESKEY_max_stop_time}"

TOMCAT_START_OPTS="${OCF_RESKEY_tomcat_start_opts}"
TOMCAT_START_SCRIPT="${OCF_RESKEY_tomcat_start_script}"
CATALINA_OPTS="-Dname=$TOMCAT_NAME ${OCF_RESKEY_catalina_opts}"
CATALINA_TMPDIR="${OCF_RESKEY_catalina_tmpdir}"
CATALINA_ROTATE_LOG="${OCF_RESKEY_catalina_rotate_log}"
CATALINA_ROTATETIME="${OCF_RESKEY_catalina_rotatetime}"
JAVA_ENDORSED_DIRS="${OCF_RESKEY_java_endorsed_dirs}"
LOGGING_CONFIG="${OCF_RESKEY_logging_config}"
LOGGING_MANAGER="${OCF_RESKEY_logging_manager}"

LSB_STATUS_STOPPED=3
if [ $# -ne 1 ]; then
	usage
	exit $OCF_ERR_ARGS
fi
case "$COMMAND" in
	meta-data) metadata_tomcat; exit $OCF_SUCCESS;;
	help|usage) usage; exit $OCF_SUCCESS;;
esac

if [ ! -d "$JAVA_HOME" -o ! -d "$CATALINA_HOME" -o ! -d "$CATALINA_BASE" ]; then
	case $COMMAND in
		stop)		exit	$OCF_SUCCESS;;
		monitor)	exit	$OCF_NOT_RUNNING;;
		status)		exit	$LSB_STATUS_STOPPED;;
	esac
	ocf_exit_reason "JAVA_HOME or CATALINA_HOME or CATALINA_BASE does not exist."
	exit $OCF_ERR_INSTALLED
fi

export JAVA_HOME JAVA_OPTS CATALINA_HOME CATALINA_BASE CATALINA_OUT CATALINA_PID CATALINA_OPTS CATALINA_TMPDIR JAVA_ENDORSED_DIRS LOGGING_CONFIG LOGGING_MANAGER

JAVA=${JAVA_HOME}/bin/java

if [ ! -x "$JAVA" ]; then
	case $COMMAND in
		stop)		exit	$OCF_SUCCESS;;
		monitor)	exit	$OCF_NOT_RUNNING;;
		status)		exit	$LSB_STATUS_STOPPED;;
	esac
	ocf_exit_reason "java command does not exist."
	exit $OCF_ERR_INSTALLED
fi

ROTATELOGS=""
if ocf_is_true ${CATALINA_ROTATE_LOG}; then
	# Look for rotatelogs/rotatelogs2
	if [ -x /usr/sbin/rotatelogs ]; then
		ROTATELOGS=/usr/sbin/rotatelogs
	elif [ -x /usr/sbin/rotatelogs2 ]; then
		ROTATELOGS=/usr/sbin/rotatelogs2
	fi
fi

#
# ------------------
# the main script
# ------------------
# 
case "$COMMAND" in
	start)
		ocf_log debug  "[$TOMCAT_NAME] Enter tomcat start"
		start_tomcat
		func_status=$?
		ocf_log debug  "[$TOMCAT_NAME] Leave tomcat start $func_status"
		exit $func_status
		;;
	stop)
		ocf_log debug  "[$TOMCAT_NAME] Enter tomcat stop"
		stop_tomcat
		func_status=$?
		ocf_log debug  "[$TOMCAT_NAME] Leave tomcat stop $func_status"
		exit $func_status
		;;
	status)
		if monitor_tomcat; then
		  echo tomcat instance $TOMCAT_NAME is running
		  exit $OCF_SUCCESS
		else
		  echo tomcat instance $TOMCAT_NAME is stopped
		  exit $OCF_NOT_RUNNING
		fi
		exit $?
		;;
	monitor)
		#ocf_log debug  "[$TOMCAT_NAME] Enter tomcat monitor"
		monitor_tomcat
		func_status=$?
		#ocf_log debug  "[$TOMCAT_NAME] Leave tomcat monitor $func_status"
		exit $func_status
		;;
	meta-data)
		metadata_tomcat
		exit $?
		;;
	validate-all)
		validate_all_tomcat
		exit $?
		;;
        usage|help)
                usage
                exit $OCF_SUCCESS
                ;;
	*)
		usage
		exit $OCF_ERR_UNIMPLEMENTED
		;;
esac