#!/bin/bash 

# Program: check_whois_expire
# Author:  Stew Redfield
# Date:    2009.02.24
# Purpose: Nagios-enabled Whois Expiration
##########
# Usage:   check_whois_expire -d domain [-h whois_host]
##########
# Legal:   Creative Commons - Attribution-Share Alike 3.0 
#          sredfield.com/
##########
VERSION=1.0.0.1
##########
# Change to your Nagios Base directory
NAGBASE=/opt/nagios/active
##########

if [ -f /usr/bin/uname ]; then
	UNAME=`/usr/bin/uname`
fi
if [ -f /sbin/uname ]; then
	UNAME=`/sbin/uname`
fi

if [ "${UNAME}" == "SunOS" ]; then
	GREP=/usr/bin/grep
	TAIL=/usr/bin/tail
	PRINTF=/usr/bin/printf
elif [ "${UNAME}" == "Linux" ]; then
	GREP=/bin/grep
	TAIL=/bin/tail
	PRINTF=/usr/bin/printf
else
	GREP=/bin/grep
	GREP=/bin/tail
	PRINTF=/bin/printf
fi
WHOIS=/usr/bin/whois
if [ ! -f ${WHOIS} ]; then
	${PRINTF} "${WHOIS} does not exist\n"
	exit 1;
fi
##########
PROG=`/bin/basename $0`
DTE=`/bin/date +%Y%m%d-%H%M%S`

UTILS=${NAGBASE}/libexec/utils.sh
if [ -f ${UTILS} ]; then
	. ${UTILS}
else
	printf "Error: ${UTILS} does not exist\n"
	exit 1
fi

VERBOSE=0; VERQ=0; QUIET=0; 
DOM=''
WHST=''

while getopts "d:h:VvqT" OPT
do
        case ${OPT} in
                v)      VERBOSE=1;;
                V)      VERQ=1;;
                q)      QUIET=1;;
                T)      TEST=1;;
		d)	DOM=$OPTARG;;
		h)	WHST=$OPTARG;;
               	h*|H*|\?)       USAGE;;
        esac
done
shift `expr $OPTIND - 1`

if [ ${VERQ} -eq 1 ];then
	${PRINTF} "${PROG} ${VERSION}\n"
	exit ${STATE_UNKNOWN}
fi

if [ "x${WHST}" != "x" ]; then
	EXSTR=`${WHOIS} -h ${WHST} ${DOM} | ${GREP} -i expir | ${TAIL} -1`
else
	EXSTR=`${WHOIS} ${DOM} | ${GREP} -i expir | ${TAIL} -1`
fi

if [ "x${EXSTR}" == "x" ]; then
	${PRINTF} "Error: Domain ${DOM} not found\n" 
	exit ${STATE_UNKNOWN}
fi
EXPIR=`echo ${EXSTR} | cut -d: -f2`
${PRINTF} "OK: ${DOM} expires ${EXPIR} as of (${DTE})\n"
exit ${STATE_OK}