#!/bin/sh
#
#
#	Apache 1.3 OCF RA. Manages OpenBSD 1.3 httpd. 
#
# Copyright (c) 2007 l00 bugdead prods, Sebastian Reitenbach
#                    All Rights Reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#
# Further, this software is distributed without any warranty that it is
# free of the rightful claim of any third person regarding infringement
# or the like.  Any license provided herein, whether implied or
# otherwise, applies only to this software file.  Patent licenses, if
# any, provided herein do not apply to combinations of this program with
# other software, or any other product whatsoever.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
#

#######################################################################
# Initialization:

. ${OCF_ROOT}/resource.d/heartbeat/.ocf-shellfuncs

#######################################################################

meta_data() {
	cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="apache13" version="0.1">
<version>1.0</version>

<longdesc lang="en">
This resource agent manages OpenBSD apache server
or clients.
</longdesc>
<shortdesc lang="en">OpenBSD apache</shortdesc>

<parameters>

<parameter name="apachectl" unique="1" required="1">
<longdesc lang="en">
Location of the apachectl binary.
</longdesc>
<shortdesc lang="en">apachectl location.</shortdesc>
<content type="string" default="/usr/sbin/apachectl" />
</parameter>
<parameter name="pid" unique="1" required="1">
<longdesc lang="en">
Location to store the PID file.
</longdesc>
<shortdesc lang="en">PID file location.</shortdesc>
<content type="string" default="/var/www/logs/httpd.pid" />
</parameter>
<parameter name="parameters" unique="1" required="1">
<longdesc lang="en">
Parameters to apachectl, e.g. start or startssl.
</longdesc>
<shortdesc lang="en">apachectl parameters.</shortdesc>
<content type="string" default="start" />
</parameter>

</parameters>

<actions>
<action name="start"        timeout="90" />
<action name="stop"         timeout="100" />
<action name="monitor"      timeout="20" interval="10" depth="0" start-delay="0" />
<action name="reload"       timeout="90" />
<action name="migrate_to"   timeout="100" />
<action name="migrate_from" timeout="90" />
<action name="meta-data"    timeout="5" />
<action name="verify-all"   timeout="30" />
</actions>
</resource-agent>
END
}

#######################################################################

# don't exit on TERM, to test that lrmd makes sure that we do exit
trap sigterm_handler TERM
sigterm_handler() {
	ocf_log info "They use TERM to bring us down. No such luck."
	return
}

apache13_usage() {
	cat <<END
usage: $0 {start|stop|monitor|migrate_to|migrate_from|validate-all|meta-data}

Expects to have a fully populated OCF RA-compliant environment set.
END
}

apache13_start() {
    apache13_monitor
    if [ $? =  $OCF_SUCCESS ]; then
	# apache13 is already running, nothing to do
	return $OCF_SUCCESS
    fi
    ${OCF_RESKEY_apachectl} ${OCF_RESKEY_parameters}
    return ${OCF_SUCCESS}
}

apache13_stop() {
ocf_log debug stop
    apache13_monitor
    if [ $? ==  $OCF_SUCCESS ]; then
	${OCF_RESKEY_apachectl} stop
        return $OCF_SUCCESS
    else
	${OCF_RESKEY_apachectl} stop
    fi
	${OCF_RESKEY_apachectl} stop
    return $OCF_SUCCESS
}

apache13_monitor() {
	# Monitor _MUST!_ differentiate correctly between running
	# (SUCCESS), failed (ERROR) or _cleanly_ stopped (NOT RUNNING).
	# That is THREE states, not just yes/no.
	
	ps axwww | grep -e "parent" | grep -v grep > /dev/null 2>/dev/null
	if [ $? -eq 0 ];then
		return $OCF_SUCCESS
	else
		return $OCF_NOT_RUNNING
	fi
}

apache13_validate() {
    
    if [ ! -x ${OCF_RESKEY_apachectl} ];then
	return ${OCF_ERR_GENERIC}
    fi
    if [ ! -d `dirname ${OCF_RESKEY_pid}` ];then
	return ${OCF_ERR_GENERIC}
    fi

    return ${OCF_SUCCESS}
}

: ${OCF_RESKEY_apachectl=/usr/sbin/apachectl}
: ${OCF_RESKEY_pid=/var/www/logs/httpd.pid}
: ${OCF_RESKEY_parameters=start}

case $__OCF_ACTION in
meta-data)	meta_data
		exit $OCF_SUCCESS
		;;
start)		apache13_start;;
stop)		apache13_stop;;
monitor)	apache13_monitor;;
migrate_to)	ocf_log info "Migrating ${OCF_RESOURCE_INSTANCE} to ${OCF_RESKEY_CRM_meta_migrate_to}."
	        apache13_stop
		;;
migrate_from)	ocf_log info "Migrating ${OCF_RESOURCE_INSTANCE} to ${OCF_RESKEY_CRM_meta_migrated_from}."
	        apache13_start
		;;
reload)		ocf_log err "Reloading..."
	        apache13_start
		;;
validate-all)	apache13_validate;;
usage|help)	apache13_usage
		exit $OCF_SUCCESS
		;;
*)		apache13_usage
		exit $OCF_ERR_UNIMPLEMENTED
		;;
esac
rc=$?
ocf_log debug "${OCF_RESOURCE_INSTANCE} $__OCF_ACTION : $rc"
exit $rc